1 /* 2 * wpa_supplicant / WPS integration 3 * Copyright (c) 2008-2014, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "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 "bssid_ignore.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_bssid_ignore_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->bssid_ignore_cleared ? 5 : 0, 0); 104 wpa_s->bssid_ignore_cleared = false; 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 enum wpa_driver_if_type iftype; 192 193 /* 194 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in 195 * case they are configured for mixed mode operation (WPA+WPA2 and 196 * TKIP+CCMP). Try to use scan results to figure out whether the AP 197 * actually supports stronger security and select that if the client 198 * has support for it, too. 199 */ 200 201 if (wpa_drv_get_capa(wpa_s, &capa)) 202 return; /* Unknown what driver supports */ 203 204 if (ssid->ssid == NULL) 205 return; 206 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len); 207 if (!bss) 208 bss = wpa_bss_get(wpa_s, wpa_s->bssid, 209 ssid->ssid, ssid->ssid_len); 210 if (bss == NULL) { 211 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS " 212 "table - use credential as-is"); 213 return; 214 } 215 216 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table"); 217 218 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 219 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) { 220 wpa2 = 1; 221 if (adv.pairwise_cipher & WPA_CIPHER_CCMP) 222 ccmp = 1; 223 } else { 224 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 225 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 && 226 adv.pairwise_cipher & WPA_CIPHER_CCMP) 227 ccmp = 1; 228 } 229 230 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) && 231 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) { 232 /* 233 * TODO: This could be the initial AP configuration and the 234 * Beacon contents could change shortly. Should request a new 235 * scan and delay addition of the network until the updated 236 * scan results are available. 237 */ 238 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA " 239 "support - use credential as-is"); 240 return; 241 } 242 243 iftype = ssid->p2p_group ? WPA_IF_P2P_CLIENT : WPA_IF_STATION; 244 245 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) && 246 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) && 247 (capa.key_mgmt_iftype[iftype] & 248 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) { 249 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential " 250 "based on scan results"); 251 if (wpa_s->conf->ap_scan == 1) 252 ssid->pairwise_cipher |= WPA_CIPHER_CCMP; 253 else 254 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 255 } 256 257 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) && 258 (ssid->proto & WPA_PROTO_WPA) && 259 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) { 260 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential " 261 "based on scan results"); 262 if (wpa_s->conf->ap_scan == 1) 263 ssid->proto |= WPA_PROTO_RSN; 264 else 265 ssid->proto = WPA_PROTO_RSN; 266 } 267 } 268 269 270 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s, 271 struct wpa_ssid *new_ssid) 272 { 273 struct wpa_ssid *ssid, *next; 274 275 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid; 276 ssid = next, next = ssid ? ssid->next : NULL) { 277 /* 278 * new_ssid has already been added to the list in 279 * wpas_wps_add_network(), so skip it. 280 */ 281 if (ssid == new_ssid) 282 continue; 283 284 if (ssid->bssid_set || new_ssid->bssid_set) { 285 if (ssid->bssid_set != new_ssid->bssid_set) 286 continue; 287 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) != 288 0) 289 continue; 290 } 291 292 /* compare SSID */ 293 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len) 294 continue; 295 296 if (ssid->ssid && new_ssid->ssid) { 297 if (os_memcmp(ssid->ssid, new_ssid->ssid, 298 ssid->ssid_len) != 0) 299 continue; 300 } else if (ssid->ssid || new_ssid->ssid) 301 continue; 302 303 /* compare security parameters */ 304 if (ssid->auth_alg != new_ssid->auth_alg || 305 ssid->key_mgmt != new_ssid->key_mgmt || 306 (ssid->group_cipher != new_ssid->group_cipher && 307 !(ssid->group_cipher & new_ssid->group_cipher & 308 WPA_CIPHER_CCMP))) 309 continue; 310 311 /* 312 * Some existing WPS APs will send two creds in case they are 313 * configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP). 314 * Try to merge these two creds if they are received in the same 315 * M8 message. 316 */ 317 if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run && 318 wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { 319 if (new_ssid->passphrase && ssid->passphrase && 320 os_strcmp(new_ssid->passphrase, ssid->passphrase) != 321 0) { 322 wpa_printf(MSG_DEBUG, 323 "WPS: M8 Creds with different passphrase - do not merge"); 324 continue; 325 } 326 327 if (new_ssid->psk_set && 328 (!ssid->psk_set || 329 os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) { 330 wpa_printf(MSG_DEBUG, 331 "WPS: M8 Creds with different PSK - do not merge"); 332 continue; 333 } 334 335 if ((new_ssid->passphrase && !ssid->passphrase) || 336 (!new_ssid->passphrase && ssid->passphrase)) { 337 wpa_printf(MSG_DEBUG, 338 "WPS: M8 Creds with different passphrase/PSK type - do not merge"); 339 continue; 340 } 341 342 wpa_printf(MSG_DEBUG, 343 "WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message"); 344 new_ssid->proto |= ssid->proto; 345 new_ssid->pairwise_cipher |= ssid->pairwise_cipher; 346 } else { 347 /* 348 * proto and pairwise_cipher difference matter for 349 * non-mixed-mode creds. 350 */ 351 if (ssid->proto != new_ssid->proto || 352 ssid->pairwise_cipher != new_ssid->pairwise_cipher) 353 continue; 354 } 355 356 /* Remove the duplicated older network entry. */ 357 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id); 358 wpas_notify_network_removed(wpa_s, ssid); 359 if (wpa_s->current_ssid == ssid) 360 wpa_s->current_ssid = NULL; 361 wpa_config_remove_network(wpa_s->conf, ssid->id); 362 } 363 } 364 365 366 static int wpa_supplicant_wps_cred(void *ctx, 367 const struct wps_credential *cred) 368 { 369 struct wpa_supplicant *wpa_s = ctx; 370 struct wpa_ssid *ssid = wpa_s->current_ssid; 371 u16 auth_type; 372 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 373 int registrar = 0; 374 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 375 bool add_sae; 376 377 if ((wpa_s->conf->wps_cred_processing == 1 || 378 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) { 379 size_t blen = cred->cred_attr_len * 2 + 1; 380 char *buf = os_malloc(blen); 381 if (buf) { 382 wpa_snprintf_hex(buf, blen, 383 cred->cred_attr, cred->cred_attr_len); 384 wpa_msg(wpa_s, MSG_INFO, "%s%s", 385 WPS_EVENT_CRED_RECEIVED, buf); 386 os_free(buf); 387 } 388 389 wpas_notify_wps_credential(wpa_s, cred); 390 } else 391 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED); 392 393 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", 394 cred->cred_attr, cred->cred_attr_len); 395 396 if (wpa_s->conf->wps_cred_processing == 1) 397 return 0; 398 399 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); 400 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", 401 cred->auth_type); 402 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); 403 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); 404 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 405 cred->key, cred->key_len); 406 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, 407 MAC2STR(cred->mac_addr)); 408 409 auth_type = cred->auth_type; 410 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 411 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode " 412 "auth_type into WPA2PSK"); 413 auth_type = WPS_AUTH_WPA2PSK; 414 } 415 416 if (auth_type != WPS_AUTH_OPEN && 417 auth_type != WPS_AUTH_WPAPSK && 418 auth_type != WPS_AUTH_WPA2PSK) { 419 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for " 420 "unsupported authentication type 0x%x", 421 auth_type); 422 return 0; 423 } 424 425 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) { 426 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) { 427 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with " 428 "invalid Network Key length %lu", 429 (unsigned long) cred->key_len); 430 return -1; 431 } 432 } 433 434 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 435 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based " 436 "on the received credential"); 437 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 438 if (ssid->eap.identity && 439 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN && 440 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR, 441 WSC_ID_REGISTRAR_LEN) == 0) 442 registrar = 1; 443 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 444 os_free(ssid->eap.identity); 445 ssid->eap.identity = NULL; 446 ssid->eap.identity_len = 0; 447 os_free(ssid->eap.phase1); 448 ssid->eap.phase1 = NULL; 449 os_free(ssid->eap.eap_methods); 450 ssid->eap.eap_methods = NULL; 451 if (!ssid->p2p_group) { 452 ssid->temporary = 0; 453 ssid->bssid_set = 0; 454 } 455 ssid->disabled_until.sec = 0; 456 ssid->disabled_until.usec = 0; 457 ssid->auth_failures = 0; 458 } else { 459 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the " 460 "received credential"); 461 ssid = wpa_config_add_network(wpa_s->conf); 462 if (ssid == NULL) 463 return -1; 464 if (wpa_s->current_ssid) { 465 /* 466 * Should the GO issue multiple credentials for some 467 * reason, each credential should be marked as a 468 * temporary P2P group similarly to the one that gets 469 * marked as such based on the pre-configured values 470 * used for the WPS network block. 471 */ 472 ssid->p2p_group = wpa_s->current_ssid->p2p_group; 473 ssid->temporary = wpa_s->current_ssid->temporary; 474 } 475 wpas_notify_network_added(wpa_s, ssid); 476 } 477 478 wpa_config_set_network_defaults(ssid); 479 ssid->wps_run = wpa_s->wps_run; 480 481 os_free(ssid->ssid); 482 ssid->ssid = os_malloc(cred->ssid_len); 483 if (ssid->ssid) { 484 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len); 485 ssid->ssid_len = cred->ssid_len; 486 } 487 488 switch (cred->encr_type) { 489 case WPS_ENCR_NONE: 490 break; 491 case WPS_ENCR_TKIP: 492 ssid->pairwise_cipher = WPA_CIPHER_TKIP | WPA_CIPHER_CCMP; 493 break; 494 case WPS_ENCR_AES: 495 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 496 if (wpa_s->drv_capa_known && 497 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) { 498 ssid->pairwise_cipher |= WPA_CIPHER_GCMP; 499 ssid->group_cipher |= WPA_CIPHER_GCMP; 500 } 501 if (wpa_s->drv_capa_known && 502 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP_256)) { 503 ssid->pairwise_cipher |= WPA_CIPHER_GCMP_256; 504 ssid->group_cipher |= WPA_CIPHER_GCMP_256; 505 } 506 if (wpa_s->drv_capa_known && 507 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_CCMP_256)) { 508 ssid->pairwise_cipher |= WPA_CIPHER_CCMP_256; 509 ssid->group_cipher |= WPA_CIPHER_CCMP_256; 510 } 511 break; 512 } 513 514 switch (auth_type) { 515 case WPS_AUTH_OPEN: 516 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 517 ssid->key_mgmt = WPA_KEY_MGMT_NONE; 518 ssid->proto = 0; 519 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 520 if (registrar) { 521 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK 522 "id=%d - Credentials for an open " 523 "network disabled by default - use " 524 "'select_network %d' to enable", 525 ssid->id, ssid->id); 526 ssid->disabled = 1; 527 } 528 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 529 break; 530 case WPS_AUTH_WPAPSK: 531 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 532 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 533 ssid->proto = WPA_PROTO_WPA | WPA_PROTO_RSN; 534 break; 535 case WPS_AUTH_WPA2PSK: 536 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 537 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 538 add_sae = wpa_s->conf->wps_cred_add_sae; 539 #ifdef CONFIG_P2P 540 if (ssid->p2p_group && is_p2p_6ghz_capable(wpa_s->global->p2p)) 541 add_sae = true; 542 #endif /* CONFIG_P2P */ 543 if (add_sae && cred->key_len != 2 * PMK_LEN) { 544 ssid->auth_alg = 0; 545 ssid->key_mgmt |= WPA_KEY_MGMT_SAE; 546 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL; 547 } 548 ssid->proto = WPA_PROTO_RSN; 549 break; 550 } 551 552 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 553 if (cred->key_len == 2 * PMK_LEN) { 554 if (hexstr2bin((const char *) cred->key, ssid->psk, 555 PMK_LEN)) { 556 wpa_printf(MSG_ERROR, "WPS: Invalid Network " 557 "Key"); 558 return -1; 559 } 560 ssid->psk_set = 1; 561 ssid->export_keys = 1; 562 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) { 563 os_free(ssid->passphrase); 564 ssid->passphrase = os_malloc(cred->key_len + 1); 565 if (ssid->passphrase == NULL) 566 return -1; 567 os_memcpy(ssid->passphrase, cred->key, cred->key_len); 568 ssid->passphrase[cred->key_len] = '\0'; 569 wpa_config_update_psk(ssid); 570 ssid->export_keys = 1; 571 } else { 572 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key " 573 "length %lu", 574 (unsigned long) cred->key_len); 575 return -1; 576 } 577 } 578 ssid->priority = wpa_s->conf->wps_priority; 579 580 wpas_wps_security_workaround(wpa_s, ssid, cred); 581 582 wpas_wps_remove_dup_network(wpa_s, ssid); 583 584 #ifndef CONFIG_NO_CONFIG_WRITE 585 if (wpa_s->conf->update_config && 586 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 587 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration"); 588 return -1; 589 } 590 #endif /* CONFIG_NO_CONFIG_WRITE */ 591 592 if (ssid->priority) 593 wpa_config_update_prio_list(wpa_s->conf); 594 595 /* 596 * Optimize the post-WPS scan based on the channel used during 597 * the provisioning in case EAP-Failure is not received. 598 */ 599 wpa_s->after_wps = 5; 600 wpa_s->wps_freq = wpa_s->assoc_freq; 601 602 return 0; 603 } 604 605 606 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s, 607 struct wps_event_m2d *m2d) 608 { 609 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D 610 "dev_password_id=%d config_error=%d", 611 m2d->dev_password_id, m2d->config_error); 612 wpas_notify_wps_event_m2d(wpa_s, m2d); 613 #ifdef CONFIG_P2P 614 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) { 615 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_M2D 616 "dev_password_id=%d config_error=%d", 617 m2d->dev_password_id, m2d->config_error); 618 } 619 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) { 620 /* 621 * Notify P2P from eloop timeout to avoid issues with the 622 * interface getting removed while processing a message. 623 */ 624 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s, 625 NULL); 626 } 627 #endif /* CONFIG_P2P */ 628 } 629 630 631 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx) 632 { 633 struct wpa_supplicant *wpa_s = eloop_ctx; 634 wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout"); 635 wpas_clear_wps(wpa_s); 636 } 637 638 639 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s, 640 struct wps_event_fail *fail) 641 { 642 if (fail->error_indication > 0 && 643 fail->error_indication < NUM_WPS_EI_VALUES) { 644 wpa_msg(wpa_s, MSG_INFO, 645 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", 646 fail->msg, fail->config_error, fail->error_indication, 647 wps_ei_str(fail->error_indication)); 648 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) 649 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL 650 "msg=%d config_error=%d reason=%d (%s)", 651 fail->msg, fail->config_error, 652 fail->error_indication, 653 wps_ei_str(fail->error_indication)); 654 } else { 655 wpa_msg(wpa_s, MSG_INFO, 656 WPS_EVENT_FAIL "msg=%d config_error=%d", 657 fail->msg, fail->config_error); 658 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) 659 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL 660 "msg=%d config_error=%d", 661 fail->msg, fail->config_error); 662 } 663 664 /* 665 * Need to allow WPS processing to complete, e.g., by sending WSC_NACK. 666 */ 667 wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network"); 668 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 669 eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL); 670 671 wpas_notify_wps_event_fail(wpa_s, fail); 672 wpas_p2p_wps_failed(wpa_s, fail); 673 } 674 675 676 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx); 677 678 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s) 679 { 680 struct wpa_ssid *ssid; 681 int changed = 0; 682 683 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 684 685 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 686 if (ssid->disabled_for_connect && ssid->disabled) { 687 ssid->disabled_for_connect = 0; 688 ssid->disabled = 0; 689 wpas_notify_network_enabled_changed(wpa_s, ssid); 690 changed++; 691 } 692 } 693 694 if (changed) { 695 #ifndef CONFIG_NO_CONFIG_WRITE 696 if (wpa_s->conf->update_config && 697 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 698 wpa_printf(MSG_DEBUG, "WPS: Failed to update " 699 "configuration"); 700 } 701 #endif /* CONFIG_NO_CONFIG_WRITE */ 702 } 703 } 704 705 706 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx) 707 { 708 struct wpa_supplicant *wpa_s = eloop_ctx; 709 /* Enable the networks disabled during wpas_wps_reassoc */ 710 wpas_wps_reenable_networks(wpa_s); 711 } 712 713 714 int wpas_wps_reenable_networks_pending(struct wpa_supplicant *wpa_s) 715 { 716 return eloop_is_timeout_registered(wpas_wps_reenable_networks_cb, 717 wpa_s, NULL); 718 } 719 720 721 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s) 722 { 723 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS); 724 wpa_s->wps_success = 1; 725 wpas_notify_wps_event_success(wpa_s); 726 if (wpa_s->current_ssid) 727 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1); 728 wpa_s->consecutive_conn_failures = 0; 729 730 /* 731 * Enable the networks disabled during wpas_wps_reassoc after 10 732 * seconds. The 10 seconds timer is to allow the data connection to be 733 * formed before allowing other networks to be selected. 734 */ 735 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 736 NULL); 737 738 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0); 739 } 740 741 742 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s, 743 struct wps_event_er_ap *ap) 744 { 745 char uuid_str[100]; 746 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 747 748 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 749 if (ap->pri_dev_type) 750 wps_dev_type_bin2str(ap->pri_dev_type, dev_type, 751 sizeof(dev_type)); 752 else 753 dev_type[0] = '\0'; 754 755 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR 756 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|", 757 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state, 758 ap->friendly_name ? ap->friendly_name : "", 759 ap->manufacturer ? ap->manufacturer : "", 760 ap->model_description ? ap->model_description : "", 761 ap->model_name ? ap->model_name : "", 762 ap->manufacturer_url ? ap->manufacturer_url : "", 763 ap->model_url ? ap->model_url : ""); 764 } 765 766 767 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s, 768 struct wps_event_er_ap *ap) 769 { 770 char uuid_str[100]; 771 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 772 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str); 773 } 774 775 776 static void wpa_supplicant_wps_event_er_enrollee_add( 777 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 778 { 779 char uuid_str[100]; 780 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 781 782 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 783 if (enrollee->pri_dev_type) 784 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type, 785 sizeof(dev_type)); 786 else 787 dev_type[0] = '\0'; 788 789 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR 790 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s " 791 "|%s|%s|%s|%s|%s|", 792 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received, 793 enrollee->config_methods, enrollee->dev_passwd_id, dev_type, 794 enrollee->dev_name ? enrollee->dev_name : "", 795 enrollee->manufacturer ? enrollee->manufacturer : "", 796 enrollee->model_name ? enrollee->model_name : "", 797 enrollee->model_number ? enrollee->model_number : "", 798 enrollee->serial_number ? enrollee->serial_number : ""); 799 } 800 801 802 static void wpa_supplicant_wps_event_er_enrollee_remove( 803 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 804 { 805 char uuid_str[100]; 806 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 807 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR, 808 uuid_str, MAC2STR(enrollee->mac_addr)); 809 } 810 811 812 static void wpa_supplicant_wps_event_er_ap_settings( 813 struct wpa_supplicant *wpa_s, 814 struct wps_event_er_ap_settings *ap_settings) 815 { 816 char uuid_str[100]; 817 char key_str[65]; 818 const struct wps_credential *cred = ap_settings->cred; 819 820 key_str[0] = '\0'; 821 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 822 if (cred->key_len >= 8 && cred->key_len <= 64) { 823 os_memcpy(key_str, cred->key, cred->key_len); 824 key_str[cred->key_len] = '\0'; 825 } 826 } 827 828 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str)); 829 /* Use wpa_msg_ctrl to avoid showing the key in debug log */ 830 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS 831 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x " 832 "key=%s", 833 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len), 834 cred->auth_type, cred->encr_type, key_str); 835 } 836 837 838 static void wpa_supplicant_wps_event_er_set_sel_reg( 839 struct wpa_supplicant *wpa_s, 840 struct wps_event_er_set_selected_registrar *ev) 841 { 842 char uuid_str[100]; 843 844 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str)); 845 switch (ev->state) { 846 case WPS_ER_SET_SEL_REG_START: 847 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 848 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u " 849 "sel_reg_config_methods=0x%x", 850 uuid_str, ev->sel_reg, ev->dev_passwd_id, 851 ev->sel_reg_config_methods); 852 break; 853 case WPS_ER_SET_SEL_REG_DONE: 854 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 855 "uuid=%s state=DONE", uuid_str); 856 break; 857 case WPS_ER_SET_SEL_REG_FAILED: 858 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG 859 "uuid=%s state=FAILED", uuid_str); 860 break; 861 } 862 } 863 864 865 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, 866 union wps_event_data *data) 867 { 868 struct wpa_supplicant *wpa_s = ctx; 869 switch (event) { 870 case WPS_EV_M2D: 871 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d); 872 break; 873 case WPS_EV_FAIL: 874 wpa_supplicant_wps_event_fail(wpa_s, &data->fail); 875 break; 876 case WPS_EV_SUCCESS: 877 wpa_supplicant_wps_event_success(wpa_s); 878 break; 879 case WPS_EV_PWD_AUTH_FAIL: 880 #ifdef CONFIG_AP 881 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee) 882 wpa_supplicant_ap_pwd_auth_fail(wpa_s); 883 #endif /* CONFIG_AP */ 884 break; 885 case WPS_EV_PBC_OVERLAP: 886 break; 887 case WPS_EV_PBC_TIMEOUT: 888 break; 889 case WPS_EV_PBC_ACTIVE: 890 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE); 891 break; 892 case WPS_EV_PBC_DISABLE: 893 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE); 894 break; 895 case WPS_EV_ER_AP_ADD: 896 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap); 897 break; 898 case WPS_EV_ER_AP_REMOVE: 899 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap); 900 break; 901 case WPS_EV_ER_ENROLLEE_ADD: 902 wpa_supplicant_wps_event_er_enrollee_add(wpa_s, 903 &data->enrollee); 904 break; 905 case WPS_EV_ER_ENROLLEE_REMOVE: 906 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s, 907 &data->enrollee); 908 break; 909 case WPS_EV_ER_AP_SETTINGS: 910 wpa_supplicant_wps_event_er_ap_settings(wpa_s, 911 &data->ap_settings); 912 break; 913 case WPS_EV_ER_SET_SELECTED_REGISTRAR: 914 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s, 915 &data->set_sel_reg); 916 break; 917 case WPS_EV_AP_PIN_SUCCESS: 918 break; 919 } 920 } 921 922 923 static int wpa_supplicant_wps_rf_band(void *ctx) 924 { 925 struct wpa_supplicant *wpa_s = ctx; 926 927 if (!wpa_s->current_ssid || !wpa_s->assoc_freq) 928 return 0; 929 930 return (wpa_s->assoc_freq > 50000) ? WPS_RF_60GHZ : 931 (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ; 932 } 933 934 935 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid) 936 { 937 if (eap_is_wps_pbc_enrollee(&ssid->eap) || 938 eap_is_wps_pin_enrollee(&ssid->eap)) 939 return WPS_REQ_ENROLLEE; 940 else 941 return WPS_REQ_REGISTRAR; 942 } 943 944 945 static void wpas_clear_wps(struct wpa_supplicant *wpa_s) 946 { 947 int id; 948 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current; 949 950 wpa_s->after_wps = 0; 951 wpa_s->known_wps_freq = 0; 952 953 prev_current = wpa_s->current_ssid; 954 955 /* Enable the networks disabled during wpas_wps_reassoc */ 956 wpas_wps_reenable_networks(wpa_s); 957 958 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 959 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 960 961 /* Remove any existing WPS network from configuration */ 962 ssid = wpa_s->conf->ssid; 963 while (ssid) { 964 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { 965 if (ssid == wpa_s->current_ssid) { 966 wpa_s->own_disconnect_req = 1; 967 wpa_supplicant_deauthenticate( 968 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 969 } 970 id = ssid->id; 971 remove_ssid = ssid; 972 } else 973 id = -1; 974 ssid = ssid->next; 975 if (id >= 0) { 976 if (prev_current == remove_ssid) { 977 wpa_sm_set_config(wpa_s->wpa, NULL); 978 eapol_sm_notify_config(wpa_s->eapol, NULL, 979 NULL); 980 } 981 wpas_notify_network_removed(wpa_s, remove_ssid); 982 wpa_config_remove_network(wpa_s->conf, id); 983 } 984 } 985 986 wpas_wps_clear_ap_info(wpa_s); 987 } 988 989 990 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx) 991 { 992 struct wpa_supplicant *wpa_s = eloop_ctx; 993 union wps_event_data data; 994 995 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed " 996 "out"); 997 os_memset(&data, 0, sizeof(data)); 998 data.fail.config_error = WPS_CFG_MSG_TIMEOUT; 999 data.fail.error_indication = WPS_EI_NO_ERROR; 1000 /* 1001 * Call wpas_notify_wps_event_fail() directly instead of through 1002 * wpa_supplicant_wps_event() which would end up registering unnecessary 1003 * timeouts (those are only for the case where the failure happens 1004 * during an EAP-WSC exchange). 1005 */ 1006 wpas_notify_wps_event_fail(wpa_s, &data.fail); 1007 wpas_clear_wps(wpa_s); 1008 } 1009 1010 1011 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, 1012 int registrar, const u8 *dev_addr, 1013 const u8 *bssid) 1014 { 1015 struct wpa_ssid *ssid; 1016 1017 ssid = wpa_config_add_network(wpa_s->conf); 1018 if (ssid == NULL) 1019 return NULL; 1020 wpas_notify_network_added(wpa_s, ssid); 1021 wpa_config_set_network_defaults(ssid); 1022 ssid->temporary = 1; 1023 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 || 1024 wpa_config_set(ssid, "eap", "WSC", 0) < 0 || 1025 wpa_config_set(ssid, "identity", registrar ? 1026 "\"" WSC_ID_REGISTRAR "\"" : 1027 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) { 1028 wpas_notify_network_removed(wpa_s, ssid); 1029 wpa_config_remove_network(wpa_s->conf, ssid->id); 1030 return NULL; 1031 } 1032 1033 #ifdef CONFIG_P2P 1034 if (dev_addr) 1035 os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN); 1036 #endif /* CONFIG_P2P */ 1037 1038 if (bssid) { 1039 #ifndef CONFIG_P2P 1040 struct wpa_bss *bss; 1041 int count = 0; 1042 #endif /* CONFIG_P2P */ 1043 1044 os_memcpy(ssid->bssid, bssid, ETH_ALEN); 1045 ssid->bssid_set = 1; 1046 1047 /* 1048 * Note: With P2P, the SSID may change at the time the WPS 1049 * provisioning is started, so better not filter the AP based 1050 * on the current SSID in the scan results. 1051 */ 1052 #ifndef CONFIG_P2P 1053 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1054 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0) 1055 continue; 1056 1057 os_free(ssid->ssid); 1058 ssid->ssid = os_memdup(bss->ssid, bss->ssid_len); 1059 if (ssid->ssid == NULL) 1060 break; 1061 ssid->ssid_len = bss->ssid_len; 1062 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from " 1063 "scan results", 1064 ssid->ssid, ssid->ssid_len); 1065 count++; 1066 } 1067 1068 if (count > 1) { 1069 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found " 1070 "for the AP; use wildcard"); 1071 os_free(ssid->ssid); 1072 ssid->ssid = NULL; 1073 ssid->ssid_len = 0; 1074 } 1075 #endif /* CONFIG_P2P */ 1076 } 1077 1078 return ssid; 1079 } 1080 1081 1082 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s, 1083 struct wpa_ssid *selected) 1084 { 1085 struct wpa_ssid *ssid; 1086 1087 if (wpa_s->current_ssid) { 1088 wpa_s->own_disconnect_req = 1; 1089 wpa_supplicant_deauthenticate( 1090 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1091 } 1092 1093 /* Mark all other networks disabled and trigger reassociation */ 1094 ssid = wpa_s->conf->ssid; 1095 while (ssid) { 1096 int was_disabled = ssid->disabled; 1097 ssid->disabled_for_connect = 0; 1098 /* 1099 * In case the network object corresponds to a persistent group 1100 * then do not send out network disabled signal. In addition, 1101 * do not change disabled status of persistent network objects 1102 * from 2 to 1 should we connect to another network. 1103 */ 1104 if (was_disabled != 2) { 1105 ssid->disabled = ssid != selected; 1106 if (was_disabled != ssid->disabled) { 1107 if (ssid->disabled) 1108 ssid->disabled_for_connect = 1; 1109 wpas_notify_network_enabled_changed(wpa_s, 1110 ssid); 1111 } 1112 } 1113 ssid = ssid->next; 1114 } 1115 } 1116 1117 1118 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, 1119 struct wpa_ssid *selected, const u8 *bssid, 1120 int freq) 1121 { 1122 struct wpa_bss *bss; 1123 1124 wpa_s->wps_run++; 1125 if (wpa_s->wps_run == 0) 1126 wpa_s->wps_run++; 1127 wpa_s->after_wps = 0; 1128 wpa_s->known_wps_freq = 0; 1129 if (freq) { 1130 wpa_s->after_wps = 5; 1131 wpa_s->wps_freq = freq; 1132 } else if (bssid) { 1133 bss = wpa_bss_get_bssid_latest(wpa_s, bssid); 1134 if (bss && bss->freq > 0) { 1135 wpa_s->known_wps_freq = 1; 1136 wpa_s->wps_freq = bss->freq; 1137 } 1138 } 1139 1140 wpas_wps_temp_disable(wpa_s, selected); 1141 1142 wpa_s->disconnected = 0; 1143 wpa_s->reassociate = 1; 1144 wpa_s->scan_runs = 0; 1145 wpa_s->normal_scans = 0; 1146 wpa_s->wps_success = 0; 1147 wpa_s->bssid_ignore_cleared = false; 1148 1149 wpa_supplicant_cancel_sched_scan(wpa_s); 1150 wpa_supplicant_req_scan(wpa_s, 0, 0); 1151 } 1152 1153 1154 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 1155 int p2p_group, int multi_ap_backhaul_sta) 1156 { 1157 struct wpa_ssid *ssid; 1158 char phase1[32]; 1159 1160 #ifdef CONFIG_AP 1161 if (wpa_s->ap_iface) { 1162 wpa_printf(MSG_DEBUG, 1163 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1164 return -1; 1165 } 1166 #endif /* CONFIG_AP */ 1167 wpas_clear_wps(wpa_s); 1168 ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid); 1169 if (ssid == NULL) 1170 return -1; 1171 ssid->temporary = 1; 1172 ssid->p2p_group = p2p_group; 1173 /* 1174 * When starting a regular WPS process (not P2P group formation) 1175 * the registrar/final station can be either AP or PCP 1176 * so use a "don't care" value for the pbss flag. 1177 */ 1178 if (!p2p_group) 1179 ssid->pbss = 2; 1180 #ifdef CONFIG_P2P 1181 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1182 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1183 if (ssid->ssid) { 1184 ssid->ssid_len = wpa_s->go_params->ssid_len; 1185 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1186 ssid->ssid_len); 1187 if (wpa_s->go_params->freq > 56160) { 1188 /* P2P in 60 GHz uses PBSS */ 1189 ssid->pbss = 1; 1190 } 1191 if (wpa_s->go_params->edmg && 1192 wpas_p2p_try_edmg_channel(wpa_s, 1193 wpa_s->go_params) == 0) 1194 ssid->enable_edmg = 1; 1195 1196 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1197 "SSID", ssid->ssid, ssid->ssid_len); 1198 } 1199 } 1200 #endif /* CONFIG_P2P */ 1201 os_snprintf(phase1, sizeof(phase1), "pbc=1%s", 1202 multi_ap_backhaul_sta ? " multi_ap=1" : ""); 1203 if (wpa_config_set_quoted(ssid, "phase1", phase1) < 0) 1204 return -1; 1205 if (wpa_s->wps_fragment_size) 1206 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1207 if (multi_ap_backhaul_sta) 1208 ssid->multi_ap_backhaul_sta = 1; 1209 wpa_supplicant_wps_event(wpa_s, WPS_EV_PBC_ACTIVE, NULL); 1210 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1211 wpa_s, NULL); 1212 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1213 return 0; 1214 } 1215 1216 1217 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s, 1218 const u8 *dev_addr, const u8 *bssid, 1219 const char *pin, int p2p_group, u16 dev_pw_id, 1220 const u8 *peer_pubkey_hash, 1221 const u8 *ssid_val, size_t ssid_len, int freq) 1222 { 1223 struct wpa_ssid *ssid; 1224 char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN]; 1225 unsigned int rpin = 0; 1226 char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10]; 1227 1228 #ifdef CONFIG_AP 1229 if (wpa_s->ap_iface) { 1230 wpa_printf(MSG_DEBUG, 1231 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1232 return -1; 1233 } 1234 #endif /* CONFIG_AP */ 1235 wpas_clear_wps(wpa_s); 1236 if (bssid && is_zero_ether_addr(bssid)) 1237 bssid = NULL; 1238 ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid); 1239 if (ssid == NULL) { 1240 wpa_printf(MSG_DEBUG, "WPS: Could not add network"); 1241 return -1; 1242 } 1243 ssid->temporary = 1; 1244 ssid->p2p_group = p2p_group; 1245 /* 1246 * When starting a regular WPS process (not P2P group formation) 1247 * the registrar/final station can be either AP or PCP 1248 * so use a "don't care" value for the pbss flag. 1249 */ 1250 if (!p2p_group) 1251 ssid->pbss = 2; 1252 if (ssid_val) { 1253 ssid->ssid = os_malloc(ssid_len); 1254 if (ssid->ssid) { 1255 os_memcpy(ssid->ssid, ssid_val, ssid_len); 1256 ssid->ssid_len = ssid_len; 1257 } 1258 } 1259 if (peer_pubkey_hash) { 1260 os_memcpy(hash, " pkhash=", 8); 1261 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8, 1262 peer_pubkey_hash, 1263 WPS_OOB_PUBKEY_HASH_LEN); 1264 } else { 1265 hash[0] = '\0'; 1266 } 1267 #ifdef CONFIG_P2P 1268 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1269 os_free(ssid->ssid); 1270 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1271 if (ssid->ssid) { 1272 ssid->ssid_len = wpa_s->go_params->ssid_len; 1273 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1274 ssid->ssid_len); 1275 if (wpa_s->go_params->freq > 56160) { 1276 /* P2P in 60 GHz uses PBSS */ 1277 ssid->pbss = 1; 1278 } 1279 if (wpa_s->go_params->edmg && 1280 wpas_p2p_try_edmg_channel(wpa_s, 1281 wpa_s->go_params) == 0) 1282 ssid->enable_edmg = 1; 1283 1284 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1285 "SSID", ssid->ssid, ssid->ssid_len); 1286 } 1287 } 1288 #endif /* CONFIG_P2P */ 1289 if (pin) 1290 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"", 1291 pin, dev_pw_id, hash); 1292 else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) { 1293 os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"", 1294 dev_pw_id, hash); 1295 } else { 1296 if (wps_generate_pin(&rpin) < 0) { 1297 wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN"); 1298 return -1; 1299 } 1300 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"", 1301 rpin, dev_pw_id, hash); 1302 } 1303 if (wpa_config_set(ssid, "phase1", val, 0) < 0) { 1304 wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val); 1305 return -1; 1306 } 1307 1308 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) 1309 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_PIN_ACTIVE); 1310 1311 if (wpa_s->wps_fragment_size) 1312 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1313 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1314 wpa_s, NULL); 1315 wpa_s->wps_ap_iter = 1; 1316 wpas_wps_reassoc(wpa_s, ssid, bssid, freq); 1317 return rpin; 1318 } 1319 1320 1321 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 1322 const char *pin, int p2p_group, u16 dev_pw_id) 1323 { 1324 os_get_reltime(&wpa_s->wps_pin_start_time); 1325 return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group, 1326 dev_pw_id, NULL, NULL, 0, 0); 1327 } 1328 1329 1330 void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s) 1331 { 1332 union wps_event_data data; 1333 1334 os_memset(&data, 0, sizeof(data)); 1335 data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 1336 data.fail.error_indication = WPS_EI_NO_ERROR; 1337 /* 1338 * Call wpas_notify_wps_event_fail() directly instead of through 1339 * wpa_supplicant_wps_event() which would end up registering unnecessary 1340 * timeouts (those are only for the case where the failure happens 1341 * during an EAP-WSC exchange). 1342 */ 1343 wpas_notify_wps_event_fail(wpa_s, &data.fail); 1344 } 1345 1346 /* Cancel the wps pbc/pin requests */ 1347 int wpas_wps_cancel(struct wpa_supplicant *wpa_s) 1348 { 1349 #ifdef CONFIG_AP 1350 if (wpa_s->ap_iface) { 1351 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode"); 1352 return wpa_supplicant_ap_wps_cancel(wpa_s); 1353 } 1354 #endif /* CONFIG_AP */ 1355 1356 if (wpa_s->wpa_state == WPA_SCANNING || 1357 wpa_s->wpa_state == WPA_DISCONNECTED) { 1358 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan"); 1359 wpa_supplicant_cancel_scan(wpa_s); 1360 wpas_clear_wps(wpa_s); 1361 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) { 1362 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - " 1363 "deauthenticate"); 1364 wpa_s->own_disconnect_req = 1; 1365 wpa_supplicant_deauthenticate(wpa_s, 1366 WLAN_REASON_DEAUTH_LEAVING); 1367 wpas_clear_wps(wpa_s); 1368 } else { 1369 wpas_wps_reenable_networks(wpa_s); 1370 wpas_wps_clear_ap_info(wpa_s); 1371 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) > 1372 0) 1373 wpas_clear_wps(wpa_s); 1374 } 1375 1376 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CANCEL); 1377 wpa_s->after_wps = 0; 1378 1379 return 0; 1380 } 1381 1382 1383 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, 1384 const char *pin, struct wps_new_ap_settings *settings) 1385 { 1386 struct wpa_ssid *ssid; 1387 char val[200]; 1388 char *pos, *end; 1389 int res; 1390 1391 #ifdef CONFIG_AP 1392 if (wpa_s->ap_iface) { 1393 wpa_printf(MSG_DEBUG, 1394 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1395 return -1; 1396 } 1397 #endif /* CONFIG_AP */ 1398 if (!pin) 1399 return -1; 1400 wpas_clear_wps(wpa_s); 1401 ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid); 1402 if (ssid == NULL) 1403 return -1; 1404 ssid->temporary = 1; 1405 pos = val; 1406 end = pos + sizeof(val); 1407 res = os_snprintf(pos, end - pos, "\"pin=%s", pin); 1408 if (os_snprintf_error(end - pos, res)) 1409 return -1; 1410 pos += res; 1411 if (settings) { 1412 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s " 1413 "new_encr=%s new_key=%s", 1414 settings->ssid_hex, settings->auth, 1415 settings->encr, settings->key_hex); 1416 if (os_snprintf_error(end - pos, res)) 1417 return -1; 1418 pos += res; 1419 } 1420 res = os_snprintf(pos, end - pos, "\""); 1421 if (os_snprintf_error(end - pos, res)) 1422 return -1; 1423 if (wpa_config_set(ssid, "phase1", val, 0) < 0) 1424 return -1; 1425 if (wpa_s->wps_fragment_size) 1426 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1427 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1428 wpa_s, NULL); 1429 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1430 return 0; 1431 } 1432 1433 1434 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, 1435 const u8 *p2p_dev_addr, const u8 *psk, 1436 size_t psk_len) 1437 { 1438 if (is_zero_ether_addr(p2p_dev_addr)) { 1439 wpa_printf(MSG_DEBUG, 1440 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR, 1441 MAC2STR(mac_addr)); 1442 } else { 1443 wpa_printf(MSG_DEBUG, 1444 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR 1445 " P2P Device Addr " MACSTR, 1446 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); 1447 } 1448 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 1449 1450 /* TODO */ 1451 1452 return 0; 1453 } 1454 1455 1456 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 1457 const struct wps_device_data *dev) 1458 { 1459 char uuid[40], txt[400]; 1460 int len; 1461 char devtype[WPS_DEV_TYPE_BUFSIZE]; 1462 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 1463 return; 1464 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid); 1465 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR 1466 " [%s|%s|%s|%s|%s|%s]", 1467 uuid, MAC2STR(dev->mac_addr), dev->device_name, 1468 dev->manufacturer, dev->model_name, 1469 dev->model_number, dev->serial_number, 1470 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 1471 sizeof(devtype))); 1472 if (!os_snprintf_error(sizeof(txt), len)) 1473 wpa_printf(MSG_INFO, "%s", txt); 1474 } 1475 1476 1477 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id, 1478 u16 sel_reg_config_methods) 1479 { 1480 #ifdef CONFIG_WPS_ER 1481 struct wpa_supplicant *wpa_s = ctx; 1482 1483 if (wpa_s->wps_er == NULL) 1484 return; 1485 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d " 1486 "dev_password_id=%u sel_reg_config_methods=0x%x", 1487 sel_reg, dev_passwd_id, sel_reg_config_methods); 1488 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id, 1489 sel_reg_config_methods); 1490 #endif /* CONFIG_WPS_ER */ 1491 } 1492 1493 1494 static u16 wps_fix_config_methods(u16 config_methods) 1495 { 1496 if ((config_methods & 1497 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 1498 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 1499 wpa_printf(MSG_INFO, "WPS: Converting display to " 1500 "virtual_display for WPS 2.0 compliance"); 1501 config_methods |= WPS_CONFIG_VIRT_DISPLAY; 1502 } 1503 if ((config_methods & 1504 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 1505 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 1506 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 1507 "virtual_push_button for WPS 2.0 compliance"); 1508 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 1509 } 1510 1511 return config_methods; 1512 } 1513 1514 1515 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s, 1516 struct wps_context *wps) 1517 { 1518 char buf[50]; 1519 const char *src; 1520 1521 if (is_nil_uuid(wpa_s->conf->uuid)) { 1522 struct wpa_supplicant *first; 1523 first = wpa_s->global->ifaces; 1524 while (first && first->next) 1525 first = first->next; 1526 if (first && first != wpa_s) { 1527 if (wps != wpa_s->global->ifaces->wps) 1528 os_memcpy(wps->uuid, 1529 wpa_s->global->ifaces->wps->uuid, 1530 WPS_UUID_LEN); 1531 src = "from the first interface"; 1532 } else if (wpa_s->conf->auto_uuid == 1) { 1533 uuid_random(wps->uuid); 1534 src = "based on random data"; 1535 } else { 1536 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); 1537 src = "based on MAC address"; 1538 } 1539 } else { 1540 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 1541 src = "based on configuration"; 1542 } 1543 1544 uuid_bin2str(wps->uuid, buf, sizeof(buf)); 1545 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf); 1546 } 1547 1548 1549 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s, 1550 struct wps_context *wps) 1551 { 1552 wpabuf_free(wps->dev.vendor_ext_m1); 1553 wps->dev.vendor_ext_m1 = NULL; 1554 1555 if (wpa_s->conf->wps_vendor_ext_m1) { 1556 wps->dev.vendor_ext_m1 = 1557 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1); 1558 if (!wps->dev.vendor_ext_m1) { 1559 wpa_printf(MSG_ERROR, "WPS: Cannot " 1560 "allocate memory for vendor_ext_m1"); 1561 } 1562 } 1563 } 1564 1565 1566 int wpas_wps_init(struct wpa_supplicant *wpa_s) 1567 { 1568 struct wps_context *wps; 1569 struct wps_registrar_config rcfg; 1570 struct hostapd_hw_modes *modes; 1571 u16 m; 1572 1573 wps = os_zalloc(sizeof(*wps)); 1574 if (wps == NULL) 1575 return -1; 1576 1577 wps->cred_cb = wpa_supplicant_wps_cred; 1578 wps->event_cb = wpa_supplicant_wps_event; 1579 wps->rf_band_cb = wpa_supplicant_wps_rf_band; 1580 wps->cb_ctx = wpa_s; 1581 1582 wps->dev.device_name = wpa_s->conf->device_name; 1583 wps->dev.manufacturer = wpa_s->conf->manufacturer; 1584 wps->dev.model_name = wpa_s->conf->model_name; 1585 wps->dev.model_number = wpa_s->conf->model_number; 1586 wps->dev.serial_number = wpa_s->conf->serial_number; 1587 wps->config_methods = 1588 wps_config_methods_str2bin(wpa_s->conf->config_methods); 1589 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 1590 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 1591 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " 1592 "methods are not allowed at the same time"); 1593 os_free(wps); 1594 return -1; 1595 } 1596 wps->config_methods = wps_fix_config_methods(wps->config_methods); 1597 wps->dev.config_methods = wps->config_methods; 1598 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 1599 WPS_DEV_TYPE_LEN); 1600 1601 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 1602 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 1603 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); 1604 1605 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 1606 1607 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 1608 modes = wpa_s->hw.modes; 1609 if (modes) { 1610 for (m = 0; m < wpa_s->hw.num_modes; m++) { 1611 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B || 1612 modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1613 wps->dev.rf_bands |= WPS_RF_24GHZ; 1614 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A) 1615 wps->dev.rf_bands |= WPS_RF_50GHZ; 1616 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD) 1617 wps->dev.rf_bands |= WPS_RF_60GHZ; 1618 } 1619 } 1620 if (wps->dev.rf_bands == 0) { 1621 /* 1622 * Default to claiming support for both bands if the driver 1623 * does not provide support for fetching supported bands. 1624 */ 1625 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; 1626 } 1627 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); 1628 wpas_wps_set_uuid(wpa_s, wps); 1629 1630 #ifdef CONFIG_NO_TKIP 1631 wps->auth_types = WPS_AUTH_WPA2PSK; 1632 wps->encr_types = WPS_ENCR_AES; 1633 #else /* CONFIG_NO_TKIP */ 1634 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1635 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1636 #endif /* CONFIG_NO_TKIP */ 1637 1638 os_memset(&rcfg, 0, sizeof(rcfg)); 1639 rcfg.new_psk_cb = wpas_wps_new_psk_cb; 1640 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb; 1641 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb; 1642 rcfg.cb_ctx = wpa_s; 1643 1644 wps->registrar = wps_registrar_init(wps, &rcfg); 1645 if (wps->registrar == NULL) { 1646 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar"); 1647 os_free(wps); 1648 return -1; 1649 } 1650 1651 wpa_s->wps = wps; 1652 1653 return 0; 1654 } 1655 1656 1657 #ifdef CONFIG_WPS_ER 1658 static void wpas_wps_nfc_clear(struct wps_context *wps) 1659 { 1660 wps->ap_nfc_dev_pw_id = 0; 1661 wpabuf_free(wps->ap_nfc_dh_pubkey); 1662 wps->ap_nfc_dh_pubkey = NULL; 1663 wpabuf_free(wps->ap_nfc_dh_privkey); 1664 wps->ap_nfc_dh_privkey = NULL; 1665 wpabuf_free(wps->ap_nfc_dev_pw); 1666 wps->ap_nfc_dev_pw = NULL; 1667 } 1668 #endif /* CONFIG_WPS_ER */ 1669 1670 1671 void wpas_wps_deinit(struct wpa_supplicant *wpa_s) 1672 { 1673 wpas_wps_assoc_with_cred_cancel(wpa_s); 1674 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 1675 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 1676 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 1677 wpas_wps_clear_ap_info(wpa_s); 1678 1679 #ifdef CONFIG_P2P 1680 eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL); 1681 #endif /* CONFIG_P2P */ 1682 1683 if (wpa_s->wps == NULL) 1684 return; 1685 1686 #ifdef CONFIG_WPS_ER 1687 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1688 wpa_s->wps_er = NULL; 1689 wpas_wps_nfc_clear(wpa_s->wps); 1690 #endif /* CONFIG_WPS_ER */ 1691 1692 wps_registrar_deinit(wpa_s->wps->registrar); 1693 wpabuf_free(wpa_s->wps->dh_pubkey); 1694 wpabuf_free(wpa_s->wps->dh_privkey); 1695 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1); 1696 os_free(wpa_s->wps->network_key); 1697 os_free(wpa_s->wps); 1698 wpa_s->wps = NULL; 1699 } 1700 1701 1702 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, 1703 struct wpa_ssid *ssid, struct wpa_bss *bss) 1704 { 1705 struct wpabuf *wps_ie; 1706 1707 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) 1708 return -1; 1709 1710 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1711 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1712 if (!wps_ie) { 1713 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1714 return 0; 1715 } 1716 1717 if (!wps_is_selected_pbc_registrar(wps_ie)) { 1718 wpa_printf(MSG_DEBUG, " skip - WPS AP " 1719 "without active PBC Registrar"); 1720 wpabuf_free(wps_ie); 1721 return 0; 1722 } 1723 1724 /* TODO: overlap detection */ 1725 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1726 "(Active PBC)"); 1727 wpabuf_free(wps_ie); 1728 return 1; 1729 } 1730 1731 if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1732 if (!wps_ie) { 1733 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1734 return 0; 1735 } 1736 1737 /* 1738 * Start with WPS APs that advertise our address as an 1739 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and 1740 * allow any WPS AP after couple of scans since some APs do not 1741 * set Selected Registrar attribute properly when using 1742 * external Registrar. 1743 */ 1744 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { 1745 struct os_reltime age; 1746 1747 os_reltime_age(&wpa_s->wps_pin_start_time, &age); 1748 1749 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG || 1750 age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) { 1751 wpa_printf(MSG_DEBUG, 1752 " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)", 1753 wpa_s->scan_runs, (int) age.sec); 1754 wpabuf_free(wps_ie); 1755 return 0; 1756 } 1757 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1758 } else { 1759 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1760 "(Authorized MAC or Active PIN)"); 1761 } 1762 wpabuf_free(wps_ie); 1763 return 1; 1764 } 1765 1766 if (wps_ie) { 1767 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1768 wpabuf_free(wps_ie); 1769 return 1; 1770 } 1771 1772 return -1; 1773 } 1774 1775 1776 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, 1777 struct wpa_ssid *ssid, 1778 struct wpa_bss *bss) 1779 { 1780 struct wpabuf *wps_ie = NULL; 1781 int ret = 0; 1782 1783 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1784 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1785 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { 1786 /* allow wildcard SSID for WPS PBC */ 1787 ret = 1; 1788 } 1789 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1790 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1791 if (wps_ie && 1792 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || 1793 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { 1794 /* allow wildcard SSID for WPS PIN */ 1795 ret = 1; 1796 } 1797 } 1798 1799 if (!ret && ssid->bssid_set && 1800 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) { 1801 /* allow wildcard SSID due to hardcoded BSSID match */ 1802 ret = 1; 1803 } 1804 1805 #ifdef CONFIG_WPS_STRICT 1806 if (wps_ie) { 1807 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > 1808 0, bss->bssid) < 0) 1809 ret = 0; 1810 if (bss->beacon_ie_len) { 1811 struct wpabuf *bcn_wps; 1812 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon( 1813 bss, WPS_IE_VENDOR_TYPE); 1814 if (bcn_wps == NULL) { 1815 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " 1816 "missing from AP Beacon"); 1817 ret = 0; 1818 } else { 1819 if (wps_validate_beacon(wps_ie) < 0) 1820 ret = 0; 1821 wpabuf_free(bcn_wps); 1822 } 1823 } 1824 } 1825 #endif /* CONFIG_WPS_STRICT */ 1826 1827 wpabuf_free(wps_ie); 1828 1829 return ret; 1830 } 1831 1832 1833 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, 1834 struct wpa_bss *selected, struct wpa_ssid *ssid) 1835 { 1836 const u8 *sel_uuid; 1837 struct wpabuf *wps_ie; 1838 int ret = 0; 1839 size_t i; 1840 1841 if (!eap_is_wps_pbc_enrollee(&ssid->eap)) 1842 return 0; 1843 1844 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " 1845 "present in scan results; selected BSSID " MACSTR, 1846 MAC2STR(selected->bssid)); 1847 if (!is_zero_ether_addr(ssid->bssid)) 1848 wpa_printf(MSG_DEBUG, 1849 "WPS: Network profile limited to accept only a single BSSID " MACSTR, 1850 MAC2STR(ssid->bssid)); 1851 1852 /* Make sure that only one AP is in active PBC mode */ 1853 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); 1854 if (wps_ie) { 1855 sel_uuid = wps_get_uuid_e(wps_ie); 1856 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", 1857 sel_uuid, UUID_LEN); 1858 } else { 1859 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " 1860 "WPS IE?!"); 1861 sel_uuid = NULL; 1862 } 1863 1864 for (i = 0; i < wpa_s->num_wps_ap; i++) { 1865 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 1866 1867 if (!ap->pbc_active || 1868 os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0) 1869 continue; 1870 1871 if (!is_zero_ether_addr(ssid->bssid) && 1872 os_memcmp(ap->bssid, ssid->bssid, ETH_ALEN) != 0) { 1873 wpa_printf(MSG_DEBUG, "WPS: Ignore another BSS " MACSTR 1874 " in active PBC mode due to local BSSID limitation", 1875 MAC2STR(ap->bssid)); 1876 continue; 1877 } 1878 1879 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " 1880 MACSTR, MAC2STR(ap->bssid)); 1881 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", 1882 ap->uuid, UUID_LEN); 1883 if (sel_uuid == NULL || 1884 os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) { 1885 ret = 1; /* PBC overlap */ 1886 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " 1887 MACSTR " and " MACSTR, 1888 MAC2STR(selected->bssid), 1889 MAC2STR(ap->bssid)); 1890 break; 1891 } 1892 1893 /* TODO: verify that this is reasonable dual-band situation */ 1894 } 1895 1896 wpabuf_free(wps_ie); 1897 1898 return ret; 1899 } 1900 1901 1902 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) 1903 { 1904 struct wpa_bss *bss; 1905 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; 1906 1907 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) 1908 return; 1909 1910 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1911 struct wpabuf *ie; 1912 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1913 if (!ie) 1914 continue; 1915 if (wps_is_selected_pbc_registrar(ie)) 1916 pbc++; 1917 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) 1918 auth++; 1919 else if (wps_is_selected_pin_registrar(ie)) 1920 pin++; 1921 else 1922 wps++; 1923 wpabuf_free(ie); 1924 } 1925 1926 if (pbc) 1927 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); 1928 else if (auth) 1929 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); 1930 else if (pin) 1931 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); 1932 else if (wps) 1933 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); 1934 } 1935 1936 1937 int wpas_wps_searching(struct wpa_supplicant *wpa_s) 1938 { 1939 struct wpa_ssid *ssid; 1940 1941 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1942 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled) 1943 return 1; 1944 } 1945 1946 return 0; 1947 } 1948 1949 1950 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 1951 char *end) 1952 { 1953 struct wpabuf *wps_ie; 1954 int ret; 1955 1956 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA); 1957 if (wps_ie == NULL) 1958 return 0; 1959 1960 ret = wps_attr_text(wps_ie, buf, end); 1961 wpabuf_free(wps_ie); 1962 return ret; 1963 } 1964 1965 1966 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) 1967 { 1968 #ifdef CONFIG_WPS_ER 1969 if (wpa_s->wps_er) { 1970 wps_er_refresh(wpa_s->wps_er); 1971 return 0; 1972 } 1973 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); 1974 if (wpa_s->wps_er == NULL) 1975 return -1; 1976 return 0; 1977 #else /* CONFIG_WPS_ER */ 1978 return 0; 1979 #endif /* CONFIG_WPS_ER */ 1980 } 1981 1982 1983 void wpas_wps_er_stop(struct wpa_supplicant *wpa_s) 1984 { 1985 #ifdef CONFIG_WPS_ER 1986 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1987 wpa_s->wps_er = NULL; 1988 #endif /* CONFIG_WPS_ER */ 1989 } 1990 1991 1992 #ifdef CONFIG_WPS_ER 1993 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, 1994 const char *uuid, const char *pin) 1995 { 1996 u8 u[UUID_LEN]; 1997 const u8 *use_uuid = NULL; 1998 u8 addr_buf[ETH_ALEN]; 1999 2000 if (os_strcmp(uuid, "any") == 0) { 2001 } else if (uuid_str2bin(uuid, u) == 0) { 2002 use_uuid = u; 2003 } else if (hwaddr_aton(uuid, addr_buf) == 0) { 2004 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf); 2005 if (use_uuid == NULL) 2006 return -1; 2007 } else 2008 return -1; 2009 return wps_registrar_add_pin(wpa_s->wps->registrar, addr, 2010 use_uuid, 2011 (const u8 *) pin, os_strlen(pin), 300); 2012 } 2013 2014 2015 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) 2016 { 2017 u8 u[UUID_LEN], *use_uuid = NULL; 2018 u8 addr[ETH_ALEN], *use_addr = NULL; 2019 2020 if (uuid_str2bin(uuid, u) == 0) 2021 use_uuid = u; 2022 else if (hwaddr_aton(uuid, addr) == 0) 2023 use_addr = addr; 2024 else 2025 return -1; 2026 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr); 2027 } 2028 2029 2030 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, 2031 const char *pin) 2032 { 2033 u8 u[UUID_LEN], *use_uuid = NULL; 2034 u8 addr[ETH_ALEN], *use_addr = NULL; 2035 2036 if (uuid_str2bin(uuid, u) == 0) 2037 use_uuid = u; 2038 else if (hwaddr_aton(uuid, addr) == 0) 2039 use_addr = addr; 2040 else 2041 return -1; 2042 2043 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin, 2044 os_strlen(pin)); 2045 } 2046 2047 2048 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid, 2049 struct wps_credential *cred) 2050 { 2051 os_memset(cred, 0, sizeof(*cred)); 2052 if (ssid->ssid_len > SSID_MAX_LEN) 2053 return -1; 2054 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len); 2055 cred->ssid_len = ssid->ssid_len; 2056 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 2057 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ? 2058 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; 2059 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 2060 cred->encr_type = WPS_ENCR_AES; 2061 else 2062 cred->encr_type = WPS_ENCR_TKIP; 2063 if (ssid->passphrase) { 2064 cred->key_len = os_strlen(ssid->passphrase); 2065 if (cred->key_len >= 64) 2066 return -1; 2067 os_memcpy(cred->key, ssid->passphrase, cred->key_len); 2068 } else if (ssid->psk_set) { 2069 cred->key_len = 32; 2070 os_memcpy(cred->key, ssid->psk, 32); 2071 } else 2072 return -1; 2073 } else { 2074 cred->auth_type = WPS_AUTH_OPEN; 2075 cred->encr_type = WPS_ENCR_NONE; 2076 } 2077 2078 return 0; 2079 } 2080 2081 2082 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, 2083 int id) 2084 { 2085 u8 u[UUID_LEN], *use_uuid = NULL; 2086 u8 addr[ETH_ALEN], *use_addr = NULL; 2087 struct wpa_ssid *ssid; 2088 struct wps_credential cred; 2089 int ret; 2090 2091 if (uuid_str2bin(uuid, u) == 0) 2092 use_uuid = u; 2093 else if (hwaddr_aton(uuid, addr) == 0) 2094 use_addr = addr; 2095 else 2096 return -1; 2097 ssid = wpa_config_get_network(wpa_s->conf, id); 2098 if (ssid == NULL || ssid->ssid == NULL) 2099 return -1; 2100 2101 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2102 return -1; 2103 ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred); 2104 os_memset(&cred, 0, sizeof(cred)); 2105 return ret; 2106 } 2107 2108 2109 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, 2110 const char *pin, struct wps_new_ap_settings *settings) 2111 { 2112 u8 u[UUID_LEN], *use_uuid = NULL; 2113 u8 addr[ETH_ALEN], *use_addr = NULL; 2114 struct wps_credential cred; 2115 size_t len; 2116 2117 if (uuid_str2bin(uuid, u) == 0) 2118 use_uuid = u; 2119 else if (hwaddr_aton(uuid, addr) == 0) 2120 use_addr = addr; 2121 else 2122 return -1; 2123 if (settings->ssid_hex == NULL || settings->auth == NULL || 2124 settings->encr == NULL || settings->key_hex == NULL) 2125 return -1; 2126 2127 os_memset(&cred, 0, sizeof(cred)); 2128 len = os_strlen(settings->ssid_hex); 2129 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 2130 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) 2131 return -1; 2132 cred.ssid_len = len / 2; 2133 2134 len = os_strlen(settings->key_hex); 2135 if ((len & 1) || len > 2 * sizeof(cred.key) || 2136 hexstr2bin(settings->key_hex, cred.key, len / 2)) 2137 return -1; 2138 cred.key_len = len / 2; 2139 2140 if (os_strcmp(settings->auth, "OPEN") == 0) 2141 cred.auth_type = WPS_AUTH_OPEN; 2142 else if (os_strcmp(settings->auth, "WPAPSK") == 0) 2143 cred.auth_type = WPS_AUTH_WPAPSK; 2144 else if (os_strcmp(settings->auth, "WPA2PSK") == 0) 2145 cred.auth_type = WPS_AUTH_WPA2PSK; 2146 else 2147 return -1; 2148 2149 if (os_strcmp(settings->encr, "NONE") == 0) 2150 cred.encr_type = WPS_ENCR_NONE; 2151 #ifdef CONFIG_TESTING_OPTIONS 2152 else if (os_strcmp(settings->encr, "WEP") == 0) 2153 cred.encr_type = WPS_ENCR_WEP; 2154 #endif /* CONFIG_TESTING_OPTIONS */ 2155 else if (os_strcmp(settings->encr, "TKIP") == 0) 2156 cred.encr_type = WPS_ENCR_TKIP; 2157 else if (os_strcmp(settings->encr, "CCMP") == 0) 2158 cred.encr_type = WPS_ENCR_AES; 2159 else 2160 return -1; 2161 2162 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr, 2163 (const u8 *) pin, os_strlen(pin), &cred); 2164 } 2165 2166 2167 #ifdef CONFIG_WPS_NFC 2168 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s, 2169 int ndef, const char *uuid) 2170 { 2171 struct wpabuf *ret; 2172 u8 u[UUID_LEN], *use_uuid = NULL; 2173 u8 addr[ETH_ALEN], *use_addr = NULL; 2174 2175 if (!wpa_s->wps_er) 2176 return NULL; 2177 2178 if (uuid_str2bin(uuid, u) == 0) 2179 use_uuid = u; 2180 else if (hwaddr_aton(uuid, addr) == 0) 2181 use_addr = addr; 2182 else 2183 return NULL; 2184 2185 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); 2186 if (ndef && ret) { 2187 struct wpabuf *tmp; 2188 tmp = ndef_build_wifi(ret); 2189 wpabuf_free(ret); 2190 if (tmp == NULL) 2191 return NULL; 2192 ret = tmp; 2193 } 2194 2195 return ret; 2196 } 2197 #endif /* CONFIG_WPS_NFC */ 2198 2199 2200 static int callbacks_pending = 0; 2201 2202 static void wpas_wps_terminate_cb(void *ctx) 2203 { 2204 wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); 2205 if (--callbacks_pending <= 0) 2206 eloop_terminate(); 2207 } 2208 #endif /* CONFIG_WPS_ER */ 2209 2210 2211 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) 2212 { 2213 #ifdef CONFIG_WPS_ER 2214 if (wpa_s->wps_er) { 2215 callbacks_pending++; 2216 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); 2217 wpa_s->wps_er = NULL; 2218 return 1; 2219 } 2220 #endif /* CONFIG_WPS_ER */ 2221 return 0; 2222 } 2223 2224 2225 void wpas_wps_update_config(struct wpa_supplicant *wpa_s) 2226 { 2227 struct wps_context *wps = wpa_s->wps; 2228 2229 if (wps == NULL) 2230 return; 2231 2232 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { 2233 wps->config_methods = wps_config_methods_str2bin( 2234 wpa_s->conf->config_methods); 2235 if ((wps->config_methods & 2236 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 2237 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 2238 wpa_printf(MSG_ERROR, "WPS: Both Label and Display " 2239 "config methods are not allowed at the " 2240 "same time"); 2241 wps->config_methods &= ~WPS_CONFIG_LABEL; 2242 } 2243 } 2244 wps->config_methods = wps_fix_config_methods(wps->config_methods); 2245 wps->dev.config_methods = wps->config_methods; 2246 2247 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) 2248 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 2249 WPS_DEV_TYPE_LEN); 2250 2251 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { 2252 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 2253 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 2254 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); 2255 } 2256 2257 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) 2258 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 2259 2260 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) 2261 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 2262 2263 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) 2264 wpas_wps_set_uuid(wpa_s, wps); 2265 2266 if (wpa_s->conf->changed_parameters & 2267 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { 2268 /* Update pointers to make sure they refer current values */ 2269 wps->dev.device_name = wpa_s->conf->device_name; 2270 wps->dev.manufacturer = wpa_s->conf->manufacturer; 2271 wps->dev.model_name = wpa_s->conf->model_name; 2272 wps->dev.model_number = wpa_s->conf->model_number; 2273 wps->dev.serial_number = wpa_s->conf->serial_number; 2274 } 2275 } 2276 2277 2278 void wpas_wps_update_mac_addr(struct wpa_supplicant *wpa_s) 2279 { 2280 struct wps_context *wps; 2281 2282 wps = wpa_s->wps; 2283 if (wps) 2284 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); 2285 } 2286 2287 2288 #ifdef CONFIG_WPS_NFC 2289 2290 #ifdef CONFIG_WPS_ER 2291 static struct wpabuf * 2292 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef, 2293 struct wpa_ssid *ssid) 2294 { 2295 struct wpabuf *ret; 2296 struct wps_credential cred; 2297 2298 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2299 return NULL; 2300 2301 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred); 2302 2303 if (ndef && ret) { 2304 struct wpabuf *tmp; 2305 tmp = ndef_build_wifi(ret); 2306 wpabuf_free(ret); 2307 if (tmp == NULL) 2308 return NULL; 2309 ret = tmp; 2310 } 2311 2312 return ret; 2313 } 2314 #endif /* CONFIG_WPS_ER */ 2315 2316 2317 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 2318 int ndef, const char *id_str) 2319 { 2320 #ifdef CONFIG_WPS_ER 2321 if (id_str) { 2322 int id; 2323 char *end = NULL; 2324 struct wpa_ssid *ssid; 2325 2326 id = strtol(id_str, &end, 10); 2327 if (end && *end) 2328 return NULL; 2329 2330 ssid = wpa_config_get_network(wpa_s->conf, id); 2331 if (ssid == NULL) 2332 return NULL; 2333 return wpas_wps_network_config_token(wpa_s, ndef, ssid); 2334 } 2335 #endif /* CONFIG_WPS_ER */ 2336 #ifdef CONFIG_AP 2337 if (wpa_s->ap_iface) 2338 return wpas_ap_wps_nfc_config_token(wpa_s, ndef); 2339 #endif /* CONFIG_AP */ 2340 return NULL; 2341 } 2342 2343 2344 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef) 2345 { 2346 if (wpa_s->conf->wps_nfc_pw_from_config) { 2347 return wps_nfc_token_build(ndef, 2348 wpa_s->conf->wps_nfc_dev_pw_id, 2349 wpa_s->conf->wps_nfc_dh_pubkey, 2350 wpa_s->conf->wps_nfc_dev_pw); 2351 } 2352 2353 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id, 2354 &wpa_s->conf->wps_nfc_dh_pubkey, 2355 &wpa_s->conf->wps_nfc_dh_privkey, 2356 &wpa_s->conf->wps_nfc_dev_pw); 2357 } 2358 2359 2360 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr, 2361 const u8 *bssid, 2362 const struct wpabuf *dev_pw, u16 dev_pw_id, 2363 int p2p_group, const u8 *peer_pubkey_hash, 2364 const u8 *ssid, size_t ssid_len, int freq) 2365 { 2366 struct wps_context *wps = wpa_s->wps; 2367 char pw[32 * 2 + 1]; 2368 2369 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2370 dev_pw = wpa_s->conf->wps_nfc_dev_pw; 2371 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; 2372 } 2373 2374 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || 2375 wpa_s->conf->wps_nfc_dh_privkey == NULL) { 2376 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - " 2377 "cannot start NFC-triggered connection"); 2378 return -1; 2379 } 2380 2381 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2382 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - " 2383 "cannot start NFC-triggered connection", dev_pw_id); 2384 return -1; 2385 } 2386 2387 dh5_free(wps->dh_ctx); 2388 wpabuf_free(wps->dh_pubkey); 2389 wpabuf_free(wps->dh_privkey); 2390 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2391 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2392 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { 2393 wps->dh_ctx = NULL; 2394 wpabuf_free(wps->dh_pubkey); 2395 wps->dh_pubkey = NULL; 2396 wpabuf_free(wps->dh_privkey); 2397 wps->dh_privkey = NULL; 2398 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key"); 2399 return -1; 2400 } 2401 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); 2402 if (wps->dh_ctx == NULL) { 2403 wpabuf_free(wps->dh_pubkey); 2404 wps->dh_pubkey = NULL; 2405 wpabuf_free(wps->dh_privkey); 2406 wps->dh_privkey = NULL; 2407 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context"); 2408 return -1; 2409 } 2410 2411 if (dev_pw) { 2412 wpa_snprintf_hex_uppercase(pw, sizeof(pw), 2413 wpabuf_head(dev_pw), 2414 wpabuf_len(dev_pw)); 2415 } 2416 return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid, 2417 dev_pw ? pw : NULL, 2418 p2p_group, dev_pw_id, peer_pubkey_hash, 2419 ssid, ssid_len, freq); 2420 } 2421 2422 2423 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s, 2424 struct wps_parse_attr *attr) 2425 { 2426 /* 2427 * Disable existing networks temporarily to allow the newly learned 2428 * credential to be preferred. Enable the temporarily disabled networks 2429 * after 10 seconds. 2430 */ 2431 wpas_wps_temp_disable(wpa_s, NULL); 2432 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 2433 NULL); 2434 2435 if (wps_oob_use_cred(wpa_s->wps, attr) < 0) 2436 return -1; 2437 2438 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2439 return 0; 2440 2441 if (attr->ap_channel) { 2442 u16 chan = WPA_GET_BE16(attr->ap_channel); 2443 int freq = 0; 2444 2445 if (chan >= 1 && chan <= 13) 2446 freq = 2407 + 5 * chan; 2447 else if (chan == 14) 2448 freq = 2484; 2449 else if (chan >= 30) 2450 freq = 5000 + 5 * chan; 2451 2452 if (freq) { 2453 wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz", 2454 chan, freq); 2455 wpa_s->after_wps = 5; 2456 wpa_s->wps_freq = freq; 2457 } 2458 } 2459 2460 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network " 2461 "based on the received credential added"); 2462 wpa_s->normal_scans = 0; 2463 wpa_supplicant_reinit_autoscan(wpa_s); 2464 wpa_s->disconnected = 0; 2465 wpa_s->reassociate = 1; 2466 2467 wpa_supplicant_cancel_sched_scan(wpa_s); 2468 wpa_supplicant_req_scan(wpa_s, 0, 0); 2469 2470 return 0; 2471 } 2472 2473 2474 #ifdef CONFIG_WPS_ER 2475 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s, 2476 struct wps_parse_attr *attr) 2477 { 2478 return wps_registrar_add_nfc_password_token( 2479 wpa_s->wps->registrar, attr->oob_dev_password, 2480 attr->oob_dev_password_len); 2481 } 2482 #endif /* CONFIG_WPS_ER */ 2483 2484 2485 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s, 2486 const struct wpabuf *wps) 2487 { 2488 struct wps_parse_attr attr; 2489 2490 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2491 2492 if (wps_parse_msg(wps, &attr)) { 2493 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2494 return -1; 2495 } 2496 2497 if (attr.num_cred) 2498 return wpas_wps_use_cred(wpa_s, &attr); 2499 2500 #ifdef CONFIG_WPS_ER 2501 if (attr.oob_dev_password) 2502 return wpas_wps_add_nfc_password_token(wpa_s, &attr); 2503 #endif /* CONFIG_WPS_ER */ 2504 2505 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2506 return -1; 2507 } 2508 2509 2510 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s, 2511 const struct wpabuf *data, int forced_freq) 2512 { 2513 const struct wpabuf *wps = data; 2514 struct wpabuf *tmp = NULL; 2515 int ret; 2516 2517 if (wpabuf_len(data) < 4) 2518 return -1; 2519 2520 if (*wpabuf_head_u8(data) != 0x10) { 2521 /* Assume this contains full NDEF record */ 2522 tmp = ndef_parse_wifi(data); 2523 if (tmp == NULL) { 2524 #ifdef CONFIG_P2P 2525 tmp = ndef_parse_p2p(data); 2526 if (tmp) { 2527 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp, 2528 forced_freq); 2529 wpabuf_free(tmp); 2530 return ret; 2531 } 2532 #endif /* CONFIG_P2P */ 2533 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2534 return -1; 2535 } 2536 wps = tmp; 2537 } 2538 2539 ret = wpas_wps_nfc_tag_process(wpa_s, wps); 2540 wpabuf_free(tmp); 2541 return ret; 2542 } 2543 2544 2545 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, 2546 int ndef) 2547 { 2548 struct wpabuf *ret; 2549 2550 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && 2551 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2552 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2553 return NULL; 2554 2555 ret = wps_build_nfc_handover_req(wpa_s->wps, 2556 wpa_s->conf->wps_nfc_dh_pubkey); 2557 2558 if (ndef && ret) { 2559 struct wpabuf *tmp; 2560 tmp = ndef_build_wifi(ret); 2561 wpabuf_free(ret); 2562 if (tmp == NULL) 2563 return NULL; 2564 ret = tmp; 2565 } 2566 2567 return ret; 2568 } 2569 2570 2571 #ifdef CONFIG_WPS_NFC 2572 2573 static struct wpabuf * 2574 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef, 2575 const char *uuid) 2576 { 2577 #ifdef CONFIG_WPS_ER 2578 struct wpabuf *ret; 2579 u8 u[UUID_LEN], *use_uuid = NULL; 2580 u8 addr[ETH_ALEN], *use_addr = NULL; 2581 struct wps_context *wps = wpa_s->wps; 2582 2583 if (wps == NULL) 2584 return NULL; 2585 2586 if (uuid == NULL) 2587 return NULL; 2588 if (uuid_str2bin(uuid, u) == 0) 2589 use_uuid = u; 2590 else if (hwaddr_aton(uuid, addr) == 0) 2591 use_addr = addr; 2592 else 2593 return NULL; 2594 2595 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) { 2596 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2597 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2598 return NULL; 2599 } 2600 2601 wpas_wps_nfc_clear(wps); 2602 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; 2603 wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2604 wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2605 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { 2606 wpas_wps_nfc_clear(wps); 2607 return NULL; 2608 } 2609 2610 ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid, 2611 use_addr, wpa_s->conf->wps_nfc_dh_pubkey); 2612 if (ndef && ret) { 2613 struct wpabuf *tmp; 2614 tmp = ndef_build_wifi(ret); 2615 wpabuf_free(ret); 2616 if (tmp == NULL) 2617 return NULL; 2618 ret = tmp; 2619 } 2620 2621 return ret; 2622 #else /* CONFIG_WPS_ER */ 2623 return NULL; 2624 #endif /* CONFIG_WPS_ER */ 2625 } 2626 #endif /* CONFIG_WPS_NFC */ 2627 2628 2629 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 2630 int ndef, int cr, const char *uuid) 2631 { 2632 struct wpabuf *ret; 2633 if (!cr) 2634 return NULL; 2635 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef); 2636 if (ret) 2637 return ret; 2638 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid); 2639 } 2640 2641 2642 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s, 2643 const struct wpabuf *data) 2644 { 2645 struct wpabuf *wps; 2646 int ret = -1; 2647 u16 wsc_len; 2648 const u8 *pos; 2649 struct wpabuf msg; 2650 struct wps_parse_attr attr; 2651 u16 dev_pw_id; 2652 const u8 *bssid = NULL; 2653 int freq = 0; 2654 2655 wps = ndef_parse_wifi(data); 2656 if (wps == NULL) 2657 return -1; 2658 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2659 "payload from NFC connection handover"); 2660 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2661 if (wpabuf_len(wps) < 2) { 2662 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select " 2663 "Message"); 2664 goto out; 2665 } 2666 pos = wpabuf_head(wps); 2667 wsc_len = WPA_GET_BE16(pos); 2668 if (wsc_len > wpabuf_len(wps) - 2) { 2669 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2670 "in Wi-Fi Handover Select Message", wsc_len); 2671 goto out; 2672 } 2673 pos += 2; 2674 2675 wpa_hexdump(MSG_DEBUG, 2676 "WPS: WSC attributes in Wi-Fi Handover Select Message", 2677 pos, wsc_len); 2678 if (wsc_len < wpabuf_len(wps) - 2) { 2679 wpa_hexdump(MSG_DEBUG, 2680 "WPS: Ignore extra data after WSC attributes", 2681 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2682 } 2683 2684 wpabuf_set(&msg, pos, wsc_len); 2685 ret = wps_parse_msg(&msg, &attr); 2686 if (ret < 0) { 2687 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2688 "Wi-Fi Handover Select Message"); 2689 goto out; 2690 } 2691 2692 if (attr.oob_dev_password == NULL || 2693 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2694 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2695 "included in Wi-Fi Handover Select Message"); 2696 ret = -1; 2697 goto out; 2698 } 2699 2700 if (attr.ssid == NULL) { 2701 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover " 2702 "Select Message"); 2703 ret = -1; 2704 goto out; 2705 } 2706 2707 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len); 2708 2709 if (attr.mac_addr) { 2710 bssid = attr.mac_addr; 2711 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR, 2712 MAC2STR(bssid)); 2713 } 2714 2715 if (attr.rf_bands) 2716 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands); 2717 2718 if (attr.ap_channel) { 2719 u16 chan = WPA_GET_BE16(attr.ap_channel); 2720 2721 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan); 2722 2723 if (chan >= 1 && chan <= 13 && 2724 (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ)) 2725 freq = 2407 + 5 * chan; 2726 else if (chan == 14 && 2727 (attr.rf_bands == NULL || 2728 *attr.rf_bands & WPS_RF_24GHZ)) 2729 freq = 2484; 2730 else if (chan >= 30 && 2731 (attr.rf_bands == NULL || 2732 *attr.rf_bands & WPS_RF_50GHZ)) 2733 freq = 5000 + 5 * chan; 2734 else if (chan >= 1 && chan <= 6 && 2735 (attr.rf_bands == NULL || 2736 *attr.rf_bands & WPS_RF_60GHZ)) 2737 freq = 56160 + 2160 * chan; 2738 2739 if (freq) { 2740 wpa_printf(MSG_DEBUG, 2741 "WPS: AP indicated channel %u -> %u MHz", 2742 chan, freq); 2743 } 2744 } 2745 2746 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2747 attr.oob_dev_password, attr.oob_dev_password_len); 2748 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2749 WPS_OOB_PUBKEY_HASH_LEN); 2750 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2751 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2752 "%u in Wi-Fi Handover Select Message", dev_pw_id); 2753 ret = -1; 2754 goto out; 2755 } 2756 wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash", 2757 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2758 2759 ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0, 2760 attr.oob_dev_password, 2761 attr.ssid, attr.ssid_len, freq); 2762 2763 out: 2764 wpabuf_free(wps); 2765 return ret; 2766 } 2767 2768 2769 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2770 const struct wpabuf *req, 2771 const struct wpabuf *sel) 2772 { 2773 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported"); 2774 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req); 2775 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel); 2776 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel); 2777 } 2778 2779 2780 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2781 const struct wpabuf *req, 2782 const struct wpabuf *sel) 2783 { 2784 struct wpabuf *wps; 2785 int ret = -1; 2786 u16 wsc_len; 2787 const u8 *pos; 2788 struct wpabuf msg; 2789 struct wps_parse_attr attr; 2790 u16 dev_pw_id; 2791 2792 /* 2793 * Enrollee/station is always initiator of the NFC connection handover, 2794 * so use the request message here to find Enrollee public key hash. 2795 */ 2796 wps = ndef_parse_wifi(req); 2797 if (wps == NULL) 2798 return -1; 2799 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2800 "payload from NFC connection handover"); 2801 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2802 if (wpabuf_len(wps) < 2) { 2803 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " 2804 "Message"); 2805 goto out; 2806 } 2807 pos = wpabuf_head(wps); 2808 wsc_len = WPA_GET_BE16(pos); 2809 if (wsc_len > wpabuf_len(wps) - 2) { 2810 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2811 "in rt Wi-Fi Handover Request Message", wsc_len); 2812 goto out; 2813 } 2814 pos += 2; 2815 2816 wpa_hexdump(MSG_DEBUG, 2817 "WPS: WSC attributes in Wi-Fi Handover Request Message", 2818 pos, wsc_len); 2819 if (wsc_len < wpabuf_len(wps) - 2) { 2820 wpa_hexdump(MSG_DEBUG, 2821 "WPS: Ignore extra data after WSC attributes", 2822 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2823 } 2824 2825 wpabuf_set(&msg, pos, wsc_len); 2826 ret = wps_parse_msg(&msg, &attr); 2827 if (ret < 0) { 2828 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2829 "Wi-Fi Handover Request Message"); 2830 goto out; 2831 } 2832 2833 if (attr.oob_dev_password == NULL || 2834 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2835 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2836 "included in Wi-Fi Handover Request Message"); 2837 ret = -1; 2838 goto out; 2839 } 2840 2841 if (attr.uuid_e == NULL) { 2842 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " 2843 "Handover Request Message"); 2844 ret = -1; 2845 goto out; 2846 } 2847 2848 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); 2849 2850 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2851 attr.oob_dev_password, attr.oob_dev_password_len); 2852 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2853 WPS_OOB_PUBKEY_HASH_LEN); 2854 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2855 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2856 "%u in Wi-Fi Handover Request Message", dev_pw_id); 2857 ret = -1; 2858 goto out; 2859 } 2860 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", 2861 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2862 2863 ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar, 2864 attr.oob_dev_password, 2865 DEV_PW_NFC_CONNECTION_HANDOVER, 2866 NULL, 0, 1); 2867 2868 out: 2869 wpabuf_free(wps); 2870 return ret; 2871 } 2872 2873 #endif /* CONFIG_WPS_NFC */ 2874 2875 2876 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s) 2877 { 2878 size_t i; 2879 struct os_reltime now; 2880 2881 if (wpa_debug_level > MSG_DEBUG) 2882 return; 2883 2884 if (wpa_s->wps_ap == NULL) 2885 return; 2886 2887 os_get_reltime(&now); 2888 2889 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2890 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2891 struct wpa_bssid_ignore *e = wpa_bssid_ignore_get(wpa_s, 2892 ap->bssid); 2893 2894 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d " 2895 "tries=%d last_attempt=%d sec ago bssid_ignore=%d", 2896 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries, 2897 ap->last_attempt.sec > 0 ? 2898 (int) now.sec - (int) ap->last_attempt.sec : -1, 2899 e ? e->count : 0); 2900 } 2901 } 2902 2903 2904 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s, 2905 const u8 *bssid) 2906 { 2907 size_t i; 2908 2909 if (wpa_s->wps_ap == NULL) 2910 return NULL; 2911 2912 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2913 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2914 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0) 2915 return ap; 2916 } 2917 2918 return NULL; 2919 } 2920 2921 2922 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s, 2923 struct wpa_scan_res *res) 2924 { 2925 struct wpabuf *wps; 2926 enum wps_ap_info_type type; 2927 struct wps_ap_info *ap; 2928 int r, pbc_active; 2929 const u8 *uuid; 2930 2931 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL) 2932 return; 2933 2934 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); 2935 if (wps == NULL) 2936 return; 2937 2938 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1); 2939 if (r == 2) 2940 type = WPS_AP_SEL_REG_OUR; 2941 else if (r == 1) 2942 type = WPS_AP_SEL_REG; 2943 else 2944 type = WPS_AP_NOT_SEL_REG; 2945 2946 uuid = wps_get_uuid_e(wps); 2947 pbc_active = wps_is_selected_pbc_registrar(wps); 2948 2949 ap = wpas_wps_get_ap_info(wpa_s, res->bssid); 2950 if (ap) { 2951 if (ap->type != type) { 2952 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR 2953 " changed type %d -> %d", 2954 MAC2STR(res->bssid), ap->type, type); 2955 ap->type = type; 2956 if (type != WPS_AP_NOT_SEL_REG) 2957 wpa_bssid_ignore_del(wpa_s, ap->bssid); 2958 } 2959 ap->pbc_active = pbc_active; 2960 if (uuid) 2961 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2962 goto out; 2963 } 2964 2965 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1, 2966 sizeof(struct wps_ap_info)); 2967 if (ap == NULL) 2968 goto out; 2969 2970 wpa_s->wps_ap = ap; 2971 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap]; 2972 wpa_s->num_wps_ap++; 2973 2974 os_memset(ap, 0, sizeof(*ap)); 2975 os_memcpy(ap->bssid, res->bssid, ETH_ALEN); 2976 ap->type = type; 2977 ap->pbc_active = pbc_active; 2978 if (uuid) 2979 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2980 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added", 2981 MAC2STR(ap->bssid), ap->type); 2982 2983 out: 2984 wpabuf_free(wps); 2985 } 2986 2987 2988 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s, 2989 struct wpa_scan_results *scan_res) 2990 { 2991 size_t i; 2992 2993 for (i = 0; i < scan_res->num; i++) 2994 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]); 2995 2996 wpas_wps_dump_ap_info(wpa_s); 2997 } 2998 2999 3000 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid) 3001 { 3002 struct wps_ap_info *ap; 3003 3004 wpa_s->after_wps = 0; 3005 3006 if (!wpa_s->wps_ap_iter) 3007 return; 3008 ap = wpas_wps_get_ap_info(wpa_s, bssid); 3009 if (ap == NULL) 3010 return; 3011 ap->tries++; 3012 os_get_reltime(&ap->last_attempt); 3013 } 3014