1 /* 2 * wpa_supplicant / WPS integration 3 * Copyright (c) 2008-2013, 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 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx); 43 static void wpas_clear_wps(struct wpa_supplicant *wpa_s); 44 45 46 static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s) 47 { 48 os_free(wpa_s->wps_ap); 49 wpa_s->wps_ap = NULL; 50 wpa_s->num_wps_ap = 0; 51 wpa_s->wps_ap_iter = 0; 52 } 53 54 55 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) 56 { 57 if (!wpa_s->wps_success && 58 wpa_s->current_ssid && 59 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) { 60 const u8 *bssid = wpa_s->bssid; 61 if (is_zero_ether_addr(bssid)) 62 bssid = wpa_s->pending_bssid; 63 64 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR 65 " did not succeed - continue trying to find " 66 "suitable AP", MAC2STR(bssid)); 67 wpa_blacklist_add(wpa_s, bssid); 68 69 wpa_supplicant_deauthenticate(wpa_s, 70 WLAN_REASON_DEAUTH_LEAVING); 71 wpa_s->reassociate = 1; 72 wpa_supplicant_req_scan(wpa_s, 73 wpa_s->blacklist_cleared ? 5 : 0, 0); 74 wpa_s->blacklist_cleared = 0; 75 return 1; 76 } 77 78 wpas_wps_clear_ap_info(wpa_s); 79 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 80 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success) 81 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL); 82 83 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid && 84 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 85 int disabled = wpa_s->current_ssid->disabled; 86 unsigned int freq = wpa_s->assoc_freq; 87 struct wpa_bss *bss; 88 struct wpa_ssid *ssid = NULL; 89 int use_fast_assoc = 0; 90 91 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - " 92 "try to associate with the received credential " 93 "(freq=%u)", freq); 94 wpa_supplicant_deauthenticate(wpa_s, 95 WLAN_REASON_DEAUTH_LEAVING); 96 if (disabled) { 97 wpa_printf(MSG_DEBUG, "WPS: Current network is " 98 "disabled - wait for user to enable"); 99 return 1; 100 } 101 wpa_s->after_wps = 5; 102 wpa_s->wps_freq = freq; 103 wpa_s->normal_scans = 0; 104 wpa_s->reassociate = 1; 105 106 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association " 107 "without a new scan can be used"); 108 bss = wpa_supplicant_pick_network(wpa_s, &ssid); 109 if (bss) { 110 struct wpabuf *wps; 111 struct wps_parse_attr attr; 112 113 wps = wpa_bss_get_vendor_ie_multi(bss, 114 WPS_IE_VENDOR_TYPE); 115 if (wps && wps_parse_msg(wps, &attr) == 0 && 116 attr.wps_state && 117 *attr.wps_state == WPS_STATE_CONFIGURED) 118 use_fast_assoc = 1; 119 wpabuf_free(wps); 120 } 121 122 if (!use_fast_assoc || 123 wpa_supplicant_fast_associate(wpa_s) != 1) 124 wpa_supplicant_req_scan(wpa_s, 0, 0); 125 return 1; 126 } 127 128 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) { 129 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting " 130 "for external credential processing"); 131 wpas_clear_wps(wpa_s); 132 wpa_supplicant_deauthenticate(wpa_s, 133 WLAN_REASON_DEAUTH_LEAVING); 134 return 1; 135 } 136 137 return 0; 138 } 139 140 141 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s, 142 struct wpa_ssid *ssid, 143 const struct wps_credential *cred) 144 { 145 struct wpa_driver_capa capa; 146 struct wpa_bss *bss; 147 const u8 *ie; 148 struct wpa_ie_data adv; 149 int wpa2 = 0, ccmp = 0; 150 151 /* 152 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in 153 * case they are configured for mixed mode operation (WPA+WPA2 and 154 * TKIP+CCMP). Try to use scan results to figure out whether the AP 155 * actually supports stronger security and select that if the client 156 * has support for it, too. 157 */ 158 159 if (wpa_drv_get_capa(wpa_s, &capa)) 160 return; /* Unknown what driver supports */ 161 162 if (ssid->ssid == NULL) 163 return; 164 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len); 165 if (bss == NULL) { 166 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS " 167 "table - use credential as-is"); 168 return; 169 } 170 171 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table"); 172 173 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 174 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) { 175 wpa2 = 1; 176 if (adv.pairwise_cipher & WPA_CIPHER_CCMP) 177 ccmp = 1; 178 } else { 179 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 180 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 && 181 adv.pairwise_cipher & WPA_CIPHER_CCMP) 182 ccmp = 1; 183 } 184 185 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) && 186 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) { 187 /* 188 * TODO: This could be the initial AP configuration and the 189 * Beacon contents could change shortly. Should request a new 190 * scan and delay addition of the network until the updated 191 * scan results are available. 192 */ 193 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA " 194 "support - use credential as-is"); 195 return; 196 } 197 198 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) && 199 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) && 200 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) { 201 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential " 202 "based on scan results"); 203 if (wpa_s->conf->ap_scan == 1) 204 ssid->pairwise_cipher |= WPA_CIPHER_CCMP; 205 else 206 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 207 } 208 209 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) && 210 (ssid->proto & WPA_PROTO_WPA) && 211 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) { 212 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential " 213 "based on scan results"); 214 if (wpa_s->conf->ap_scan == 1) 215 ssid->proto |= WPA_PROTO_RSN; 216 else 217 ssid->proto = WPA_PROTO_RSN; 218 } 219 } 220 221 222 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s, 223 struct wpa_ssid *new_ssid) 224 { 225 struct wpa_ssid *ssid, *next; 226 227 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid; 228 ssid = next, next = ssid ? ssid->next : NULL) { 229 /* 230 * new_ssid has already been added to the list in 231 * wpas_wps_add_network(), so skip it. 232 */ 233 if (ssid == new_ssid) 234 continue; 235 236 if (ssid->bssid_set || new_ssid->bssid_set) { 237 if (ssid->bssid_set != new_ssid->bssid_set) 238 continue; 239 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) != 240 0) 241 continue; 242 } 243 244 /* compare SSID */ 245 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len) 246 continue; 247 248 if (ssid->ssid && new_ssid->ssid) { 249 if (os_memcmp(ssid->ssid, new_ssid->ssid, 250 ssid->ssid_len) != 0) 251 continue; 252 } else if (ssid->ssid || new_ssid->ssid) 253 continue; 254 255 /* compare security parameters */ 256 if (ssid->auth_alg != new_ssid->auth_alg || 257 ssid->key_mgmt != new_ssid->key_mgmt || 258 ssid->proto != new_ssid->proto || 259 ssid->pairwise_cipher != new_ssid->pairwise_cipher || 260 ssid->group_cipher != new_ssid->group_cipher) 261 continue; 262 263 if (ssid->passphrase && new_ssid->passphrase) { 264 if (os_strlen(ssid->passphrase) != 265 os_strlen(new_ssid->passphrase)) 266 continue; 267 if (os_strcmp(ssid->passphrase, new_ssid->passphrase) != 268 0) 269 continue; 270 } else if (ssid->passphrase || new_ssid->passphrase) 271 continue; 272 273 if ((ssid->psk_set || new_ssid->psk_set) && 274 os_memcmp(ssid->psk, new_ssid->psk, sizeof(ssid->psk)) != 0) 275 continue; 276 277 if (ssid->auth_alg == WPA_ALG_WEP) { 278 if (ssid->wep_tx_keyidx != new_ssid->wep_tx_keyidx) 279 continue; 280 if (os_memcmp(ssid->wep_key, new_ssid->wep_key, 281 sizeof(ssid->wep_key))) 282 continue; 283 if (os_memcmp(ssid->wep_key_len, new_ssid->wep_key_len, 284 sizeof(ssid->wep_key_len))) 285 continue; 286 } 287 288 /* Remove the duplicated older network entry. */ 289 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id); 290 wpas_notify_network_removed(wpa_s, ssid); 291 wpa_config_remove_network(wpa_s->conf, ssid->id); 292 } 293 } 294 295 296 static int wpa_supplicant_wps_cred(void *ctx, 297 const struct wps_credential *cred) 298 { 299 struct wpa_supplicant *wpa_s = ctx; 300 struct wpa_ssid *ssid = wpa_s->current_ssid; 301 u8 key_idx = 0; 302 u16 auth_type; 303 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 304 int registrar = 0; 305 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 306 307 if ((wpa_s->conf->wps_cred_processing == 1 || 308 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) { 309 size_t blen = cred->cred_attr_len * 2 + 1; 310 char *buf = os_malloc(blen); 311 if (buf) { 312 wpa_snprintf_hex(buf, blen, 313 cred->cred_attr, cred->cred_attr_len); 314 wpa_msg(wpa_s, MSG_INFO, "%s%s", 315 WPS_EVENT_CRED_RECEIVED, buf); 316 os_free(buf); 317 } 318 319 wpas_notify_wps_credential(wpa_s, cred); 320 } else 321 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED); 322 323 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", 324 cred->cred_attr, cred->cred_attr_len); 325 326 if (wpa_s->conf->wps_cred_processing == 1) 327 return 0; 328 329 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); 330 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", 331 cred->auth_type); 332 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); 333 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); 334 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 335 cred->key, cred->key_len); 336 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, 337 MAC2STR(cred->mac_addr)); 338 339 auth_type = cred->auth_type; 340 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 341 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode " 342 "auth_type into WPA2PSK"); 343 auth_type = WPS_AUTH_WPA2PSK; 344 } 345 346 if (auth_type != WPS_AUTH_OPEN && 347 auth_type != WPS_AUTH_SHARED && 348 auth_type != WPS_AUTH_WPAPSK && 349 auth_type != WPS_AUTH_WPA2PSK) { 350 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for " 351 "unsupported authentication type 0x%x", 352 auth_type); 353 return 0; 354 } 355 356 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) { 357 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) { 358 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with " 359 "invalid Network Key length %lu", 360 (unsigned long) cred->key_len); 361 return -1; 362 } 363 } 364 365 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 366 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based " 367 "on the received credential"); 368 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 369 if (ssid->eap.identity && 370 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN && 371 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR, 372 WSC_ID_REGISTRAR_LEN) == 0) 373 registrar = 1; 374 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 375 os_free(ssid->eap.identity); 376 ssid->eap.identity = NULL; 377 ssid->eap.identity_len = 0; 378 os_free(ssid->eap.phase1); 379 ssid->eap.phase1 = NULL; 380 os_free(ssid->eap.eap_methods); 381 ssid->eap.eap_methods = NULL; 382 if (!ssid->p2p_group) { 383 ssid->temporary = 0; 384 ssid->bssid_set = 0; 385 } 386 ssid->disabled_until.sec = 0; 387 ssid->disabled_until.usec = 0; 388 ssid->auth_failures = 0; 389 } else { 390 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the " 391 "received credential"); 392 ssid = wpa_config_add_network(wpa_s->conf); 393 if (ssid == NULL) 394 return -1; 395 wpas_notify_network_added(wpa_s, ssid); 396 } 397 398 wpa_config_set_network_defaults(ssid); 399 400 os_free(ssid->ssid); 401 ssid->ssid = os_malloc(cred->ssid_len); 402 if (ssid->ssid) { 403 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len); 404 ssid->ssid_len = cred->ssid_len; 405 } 406 407 switch (cred->encr_type) { 408 case WPS_ENCR_NONE: 409 break; 410 case WPS_ENCR_WEP: 411 if (cred->key_len <= 0) 412 break; 413 if (cred->key_len != 5 && cred->key_len != 13 && 414 cred->key_len != 10 && cred->key_len != 26) { 415 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length " 416 "%lu", (unsigned long) cred->key_len); 417 return -1; 418 } 419 if (cred->key_idx > NUM_WEP_KEYS) { 420 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d", 421 cred->key_idx); 422 return -1; 423 } 424 if (cred->key_idx) 425 key_idx = cred->key_idx - 1; 426 if (cred->key_len == 10 || cred->key_len == 26) { 427 if (hexstr2bin((char *) cred->key, 428 ssid->wep_key[key_idx], 429 cred->key_len / 2) < 0) { 430 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key " 431 "%d", key_idx); 432 return -1; 433 } 434 ssid->wep_key_len[key_idx] = cred->key_len / 2; 435 } else { 436 os_memcpy(ssid->wep_key[key_idx], cred->key, 437 cred->key_len); 438 ssid->wep_key_len[key_idx] = cred->key_len; 439 } 440 ssid->wep_tx_keyidx = key_idx; 441 break; 442 case WPS_ENCR_TKIP: 443 ssid->pairwise_cipher = WPA_CIPHER_TKIP; 444 break; 445 case WPS_ENCR_AES: 446 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 447 break; 448 } 449 450 switch (auth_type) { 451 case WPS_AUTH_OPEN: 452 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 453 ssid->key_mgmt = WPA_KEY_MGMT_NONE; 454 ssid->proto = 0; 455 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 456 if (registrar) { 457 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK 458 "id=%d - Credentials for an open " 459 "network disabled by default - use " 460 "'select_network %d' to enable", 461 ssid->id, ssid->id); 462 ssid->disabled = 1; 463 } 464 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 465 break; 466 case WPS_AUTH_SHARED: 467 ssid->auth_alg = WPA_AUTH_ALG_SHARED; 468 ssid->key_mgmt = WPA_KEY_MGMT_NONE; 469 ssid->proto = 0; 470 break; 471 case WPS_AUTH_WPAPSK: 472 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 473 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 474 ssid->proto = WPA_PROTO_WPA; 475 break; 476 case WPS_AUTH_WPA2PSK: 477 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 478 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 479 ssid->proto = WPA_PROTO_RSN; 480 break; 481 } 482 483 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) { 484 if (cred->key_len == 2 * PMK_LEN) { 485 if (hexstr2bin((const char *) cred->key, ssid->psk, 486 PMK_LEN)) { 487 wpa_printf(MSG_ERROR, "WPS: Invalid Network " 488 "Key"); 489 return -1; 490 } 491 ssid->psk_set = 1; 492 ssid->export_keys = 1; 493 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) { 494 os_free(ssid->passphrase); 495 ssid->passphrase = os_malloc(cred->key_len + 1); 496 if (ssid->passphrase == NULL) 497 return -1; 498 os_memcpy(ssid->passphrase, cred->key, cred->key_len); 499 ssid->passphrase[cred->key_len] = '\0'; 500 wpa_config_update_psk(ssid); 501 ssid->export_keys = 1; 502 } else { 503 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key " 504 "length %lu", 505 (unsigned long) cred->key_len); 506 return -1; 507 } 508 } 509 510 wpas_wps_security_workaround(wpa_s, ssid, cred); 511 512 if (cred->ap_channel) 513 wpa_s->wps_ap_channel = cred->ap_channel; 514 515 wpas_wps_remove_dup_network(wpa_s, ssid); 516 517 #ifndef CONFIG_NO_CONFIG_WRITE 518 if (wpa_s->conf->update_config && 519 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 520 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration"); 521 return -1; 522 } 523 #endif /* CONFIG_NO_CONFIG_WRITE */ 524 525 /* 526 * Optimize the post-WPS scan based on the channel used during 527 * the provisioning in case EAP-Failure is not received. 528 */ 529 wpa_s->after_wps = 5; 530 wpa_s->wps_freq = wpa_s->assoc_freq; 531 532 return 0; 533 } 534 535 536 #ifdef CONFIG_P2P 537 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx) 538 { 539 struct wpa_supplicant *wpa_s = eloop_ctx; 540 wpas_p2p_notif_pbc_overlap(wpa_s); 541 } 542 #endif /* CONFIG_P2P */ 543 544 545 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s, 546 struct wps_event_m2d *m2d) 547 { 548 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D 549 "dev_password_id=%d config_error=%d", 550 m2d->dev_password_id, m2d->config_error); 551 wpas_notify_wps_event_m2d(wpa_s, m2d); 552 #ifdef CONFIG_P2P 553 if (wpa_s->parent && wpa_s->parent != wpa_s) { 554 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D 555 "dev_password_id=%d config_error=%d", 556 m2d->dev_password_id, m2d->config_error); 557 } 558 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) { 559 /* 560 * Notify P2P from eloop timeout to avoid issues with the 561 * interface getting removed while processing a message. 562 */ 563 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s, 564 NULL); 565 } 566 #endif /* CONFIG_P2P */ 567 } 568 569 570 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx) 571 { 572 struct wpa_supplicant *wpa_s = eloop_ctx; 573 wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout"); 574 wpas_clear_wps(wpa_s); 575 } 576 577 578 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s, 579 struct wps_event_fail *fail) 580 { 581 if (fail->error_indication > 0 && 582 fail->error_indication < NUM_WPS_EI_VALUES) { 583 wpa_msg(wpa_s, MSG_INFO, 584 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", 585 fail->msg, fail->config_error, fail->error_indication, 586 wps_ei_str(fail->error_indication)); 587 if (wpa_s->parent && wpa_s->parent != wpa_s) 588 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 589 "msg=%d config_error=%d reason=%d (%s)", 590 fail->msg, fail->config_error, 591 fail->error_indication, 592 wps_ei_str(fail->error_indication)); 593 } else { 594 wpa_msg(wpa_s, MSG_INFO, 595 WPS_EVENT_FAIL "msg=%d config_error=%d", 596 fail->msg, fail->config_error); 597 if (wpa_s->parent && wpa_s->parent != wpa_s) 598 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL 599 "msg=%d config_error=%d", 600 fail->msg, fail->config_error); 601 } 602 603 /* 604 * Need to allow WPS processing to complete, e.g., by sending WSC_NACK. 605 */ 606 wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network"); 607 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 608 eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL); 609 610 wpas_notify_wps_event_fail(wpa_s, fail); 611 #ifdef CONFIG_P2P 612 wpas_p2p_wps_failed(wpa_s, fail); 613 #endif /* CONFIG_P2P */ 614 } 615 616 617 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx); 618 619 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s) 620 { 621 struct wpa_ssid *ssid; 622 int changed = 0; 623 624 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 625 626 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 627 if (ssid->disabled_for_connect && ssid->disabled) { 628 ssid->disabled_for_connect = 0; 629 ssid->disabled = 0; 630 wpas_notify_network_enabled_changed(wpa_s, ssid); 631 changed++; 632 } 633 } 634 635 if (changed) { 636 #ifndef CONFIG_NO_CONFIG_WRITE 637 if (wpa_s->conf->update_config && 638 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 639 wpa_printf(MSG_DEBUG, "WPS: Failed to update " 640 "configuration"); 641 } 642 #endif /* CONFIG_NO_CONFIG_WRITE */ 643 } 644 } 645 646 647 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx) 648 { 649 struct wpa_supplicant *wpa_s = eloop_ctx; 650 /* Enable the networks disabled during wpas_wps_reassoc */ 651 wpas_wps_reenable_networks(wpa_s); 652 } 653 654 655 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s) 656 { 657 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS); 658 wpa_s->wps_success = 1; 659 wpas_notify_wps_event_success(wpa_s); 660 if (wpa_s->current_ssid) 661 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1); 662 wpa_s->extra_blacklist_count = 0; 663 664 /* 665 * Enable the networks disabled during wpas_wps_reassoc after 10 666 * seconds. The 10 seconds timer is to allow the data connection to be 667 * formed before allowing other networks to be selected. 668 */ 669 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 670 NULL); 671 672 #ifdef CONFIG_P2P 673 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0); 674 #endif /* CONFIG_P2P */ 675 } 676 677 678 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s, 679 struct wps_event_er_ap *ap) 680 { 681 char uuid_str[100]; 682 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 683 684 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 685 if (ap->pri_dev_type) 686 wps_dev_type_bin2str(ap->pri_dev_type, dev_type, 687 sizeof(dev_type)); 688 else 689 dev_type[0] = '\0'; 690 691 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR 692 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|", 693 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state, 694 ap->friendly_name ? ap->friendly_name : "", 695 ap->manufacturer ? ap->manufacturer : "", 696 ap->model_description ? ap->model_description : "", 697 ap->model_name ? ap->model_name : "", 698 ap->manufacturer_url ? ap->manufacturer_url : "", 699 ap->model_url ? ap->model_url : ""); 700 } 701 702 703 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s, 704 struct wps_event_er_ap *ap) 705 { 706 char uuid_str[100]; 707 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 708 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str); 709 } 710 711 712 static void wpa_supplicant_wps_event_er_enrollee_add( 713 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 714 { 715 char uuid_str[100]; 716 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 717 718 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 719 if (enrollee->pri_dev_type) 720 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type, 721 sizeof(dev_type)); 722 else 723 dev_type[0] = '\0'; 724 725 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR 726 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s " 727 "|%s|%s|%s|%s|%s|", 728 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received, 729 enrollee->config_methods, enrollee->dev_passwd_id, dev_type, 730 enrollee->dev_name ? enrollee->dev_name : "", 731 enrollee->manufacturer ? enrollee->manufacturer : "", 732 enrollee->model_name ? enrollee->model_name : "", 733 enrollee->model_number ? enrollee->model_number : "", 734 enrollee->serial_number ? enrollee->serial_number : ""); 735 } 736 737 738 static void wpa_supplicant_wps_event_er_enrollee_remove( 739 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 740 { 741 char uuid_str[100]; 742 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 743 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR, 744 uuid_str, MAC2STR(enrollee->mac_addr)); 745 } 746 747 748 static void wpa_supplicant_wps_event_er_ap_settings( 749 struct wpa_supplicant *wpa_s, 750 struct wps_event_er_ap_settings *ap_settings) 751 { 752 char uuid_str[100]; 753 char key_str[65]; 754 const struct wps_credential *cred = ap_settings->cred; 755 756 key_str[0] = '\0'; 757 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 758 if (cred->key_len >= 8 && cred->key_len <= 64) { 759 os_memcpy(key_str, cred->key, cred->key_len); 760 key_str[cred->key_len] = '\0'; 761 } 762 } 763 764 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str)); 765 /* Use wpa_msg_ctrl to avoid showing the key in debug log */ 766 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS 767 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x " 768 "key=%s", 769 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len), 770 cred->auth_type, cred->encr_type, key_str); 771 } 772 773 774 static void wpa_supplicant_wps_event_er_set_sel_reg( 775 struct wpa_supplicant *wpa_s, 776 struct wps_event_er_set_selected_registrar *ev) 777 { 778 char uuid_str[100]; 779 780 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str)); 781 switch (ev->state) { 782 case WPS_ER_SET_SEL_REG_START: 783 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 784 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u " 785 "sel_reg_config_methods=0x%x", 786 uuid_str, ev->sel_reg, ev->dev_passwd_id, 787 ev->sel_reg_config_methods); 788 break; 789 case WPS_ER_SET_SEL_REG_DONE: 790 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 791 "uuid=%s state=DONE", uuid_str); 792 break; 793 case WPS_ER_SET_SEL_REG_FAILED: 794 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG 795 "uuid=%s state=FAILED", uuid_str); 796 break; 797 } 798 } 799 800 801 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, 802 union wps_event_data *data) 803 { 804 struct wpa_supplicant *wpa_s = ctx; 805 switch (event) { 806 case WPS_EV_M2D: 807 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d); 808 break; 809 case WPS_EV_FAIL: 810 wpa_supplicant_wps_event_fail(wpa_s, &data->fail); 811 break; 812 case WPS_EV_SUCCESS: 813 wpa_supplicant_wps_event_success(wpa_s); 814 break; 815 case WPS_EV_PWD_AUTH_FAIL: 816 #ifdef CONFIG_AP 817 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee) 818 wpa_supplicant_ap_pwd_auth_fail(wpa_s); 819 #endif /* CONFIG_AP */ 820 break; 821 case WPS_EV_PBC_OVERLAP: 822 break; 823 case WPS_EV_PBC_TIMEOUT: 824 break; 825 case WPS_EV_PBC_ACTIVE: 826 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE); 827 break; 828 case WPS_EV_PBC_DISABLE: 829 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE); 830 break; 831 case WPS_EV_ER_AP_ADD: 832 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap); 833 break; 834 case WPS_EV_ER_AP_REMOVE: 835 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap); 836 break; 837 case WPS_EV_ER_ENROLLEE_ADD: 838 wpa_supplicant_wps_event_er_enrollee_add(wpa_s, 839 &data->enrollee); 840 break; 841 case WPS_EV_ER_ENROLLEE_REMOVE: 842 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s, 843 &data->enrollee); 844 break; 845 case WPS_EV_ER_AP_SETTINGS: 846 wpa_supplicant_wps_event_er_ap_settings(wpa_s, 847 &data->ap_settings); 848 break; 849 case WPS_EV_ER_SET_SELECTED_REGISTRAR: 850 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s, 851 &data->set_sel_reg); 852 break; 853 case WPS_EV_AP_PIN_SUCCESS: 854 break; 855 } 856 } 857 858 859 static int wpa_supplicant_wps_rf_band(void *ctx) 860 { 861 struct wpa_supplicant *wpa_s = ctx; 862 863 if (!wpa_s->current_ssid || !wpa_s->assoc_freq) 864 return 0; 865 866 return (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ; 867 } 868 869 870 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid) 871 { 872 if (eap_is_wps_pbc_enrollee(&ssid->eap) || 873 eap_is_wps_pin_enrollee(&ssid->eap)) 874 return WPS_REQ_ENROLLEE; 875 else 876 return WPS_REQ_REGISTRAR; 877 } 878 879 880 static void wpas_clear_wps(struct wpa_supplicant *wpa_s) 881 { 882 int id; 883 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current; 884 885 prev_current = wpa_s->current_ssid; 886 887 /* Enable the networks disabled during wpas_wps_reassoc */ 888 wpas_wps_reenable_networks(wpa_s); 889 890 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 891 892 /* Remove any existing WPS network from configuration */ 893 ssid = wpa_s->conf->ssid; 894 while (ssid) { 895 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { 896 if (ssid == wpa_s->current_ssid) { 897 wpa_supplicant_deauthenticate( 898 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 899 } 900 id = ssid->id; 901 remove_ssid = ssid; 902 } else 903 id = -1; 904 ssid = ssid->next; 905 if (id >= 0) { 906 if (prev_current == remove_ssid) { 907 wpa_sm_set_config(wpa_s->wpa, NULL); 908 eapol_sm_notify_config(wpa_s->eapol, NULL, 909 NULL); 910 } 911 wpas_notify_network_removed(wpa_s, remove_ssid); 912 wpa_config_remove_network(wpa_s->conf, id); 913 } 914 } 915 916 wpas_wps_clear_ap_info(wpa_s); 917 } 918 919 920 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx) 921 { 922 struct wpa_supplicant *wpa_s = eloop_ctx; 923 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed " 924 "out"); 925 wpas_clear_wps(wpa_s); 926 } 927 928 929 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, 930 int registrar, const u8 *bssid) 931 { 932 struct wpa_ssid *ssid; 933 934 ssid = wpa_config_add_network(wpa_s->conf); 935 if (ssid == NULL) 936 return NULL; 937 wpas_notify_network_added(wpa_s, ssid); 938 wpa_config_set_network_defaults(ssid); 939 ssid->temporary = 1; 940 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 || 941 wpa_config_set(ssid, "eap", "WSC", 0) < 0 || 942 wpa_config_set(ssid, "identity", registrar ? 943 "\"" WSC_ID_REGISTRAR "\"" : 944 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) { 945 wpas_notify_network_removed(wpa_s, ssid); 946 wpa_config_remove_network(wpa_s->conf, ssid->id); 947 return NULL; 948 } 949 950 if (bssid) { 951 #ifndef CONFIG_P2P 952 struct wpa_bss *bss; 953 int count = 0; 954 #endif /* CONFIG_P2P */ 955 956 os_memcpy(ssid->bssid, bssid, ETH_ALEN); 957 ssid->bssid_set = 1; 958 959 /* 960 * Note: With P2P, the SSID may change at the time the WPS 961 * provisioning is started, so better not filter the AP based 962 * on the current SSID in the scan results. 963 */ 964 #ifndef CONFIG_P2P 965 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 966 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0) 967 continue; 968 969 os_free(ssid->ssid); 970 ssid->ssid = os_malloc(bss->ssid_len); 971 if (ssid->ssid == NULL) 972 break; 973 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len); 974 ssid->ssid_len = bss->ssid_len; 975 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from " 976 "scan results", 977 ssid->ssid, ssid->ssid_len); 978 count++; 979 } 980 981 if (count > 1) { 982 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found " 983 "for the AP; use wildcard"); 984 os_free(ssid->ssid); 985 ssid->ssid = NULL; 986 ssid->ssid_len = 0; 987 } 988 #endif /* CONFIG_P2P */ 989 } 990 991 return ssid; 992 } 993 994 995 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s, 996 struct wpa_ssid *selected) 997 { 998 struct wpa_ssid *ssid; 999 1000 if (wpa_s->current_ssid) 1001 wpa_supplicant_deauthenticate( 1002 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1003 1004 /* Mark all other networks disabled and trigger reassociation */ 1005 ssid = wpa_s->conf->ssid; 1006 while (ssid) { 1007 int was_disabled = ssid->disabled; 1008 ssid->disabled_for_connect = 0; 1009 /* 1010 * In case the network object corresponds to a persistent group 1011 * then do not send out network disabled signal. In addition, 1012 * do not change disabled status of persistent network objects 1013 * from 2 to 1 should we connect to another network. 1014 */ 1015 if (was_disabled != 2) { 1016 ssid->disabled = ssid != selected; 1017 if (was_disabled != ssid->disabled) { 1018 if (ssid->disabled) 1019 ssid->disabled_for_connect = 1; 1020 wpas_notify_network_enabled_changed(wpa_s, 1021 ssid); 1022 } 1023 } 1024 ssid = ssid->next; 1025 } 1026 } 1027 1028 1029 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, 1030 struct wpa_ssid *selected, const u8 *bssid) 1031 { 1032 struct wpa_bss *bss; 1033 1034 wpa_s->after_wps = 0; 1035 wpa_s->known_wps_freq = 0; 1036 if (bssid) { 1037 bss = wpa_bss_get_bssid_latest(wpa_s, bssid); 1038 if (bss && bss->freq > 0) { 1039 wpa_s->known_wps_freq = 1; 1040 wpa_s->wps_freq = bss->freq; 1041 } 1042 } 1043 1044 wpas_wps_temp_disable(wpa_s, selected); 1045 1046 wpa_s->disconnected = 0; 1047 wpa_s->reassociate = 1; 1048 wpa_s->scan_runs = 0; 1049 wpa_s->normal_scans = 0; 1050 wpa_s->wps_success = 0; 1051 wpa_s->blacklist_cleared = 0; 1052 wpa_supplicant_req_scan(wpa_s, 0, 0); 1053 } 1054 1055 1056 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 1057 int p2p_group) 1058 { 1059 struct wpa_ssid *ssid; 1060 wpas_clear_wps(wpa_s); 1061 ssid = wpas_wps_add_network(wpa_s, 0, bssid); 1062 if (ssid == NULL) 1063 return -1; 1064 ssid->temporary = 1; 1065 ssid->p2p_group = p2p_group; 1066 #ifdef CONFIG_P2P 1067 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1068 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1069 if (ssid->ssid) { 1070 ssid->ssid_len = wpa_s->go_params->ssid_len; 1071 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1072 ssid->ssid_len); 1073 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1074 "SSID", ssid->ssid, ssid->ssid_len); 1075 } 1076 } 1077 #endif /* CONFIG_P2P */ 1078 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0) 1079 return -1; 1080 if (wpa_s->wps_fragment_size) 1081 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1082 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1083 wpa_s, NULL); 1084 wpas_wps_reassoc(wpa_s, ssid, bssid); 1085 return 0; 1086 } 1087 1088 1089 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 1090 const char *pin, int p2p_group, u16 dev_pw_id) 1091 { 1092 struct wpa_ssid *ssid; 1093 char val[128]; 1094 unsigned int rpin = 0; 1095 1096 wpas_clear_wps(wpa_s); 1097 ssid = wpas_wps_add_network(wpa_s, 0, bssid); 1098 if (ssid == NULL) 1099 return -1; 1100 ssid->temporary = 1; 1101 ssid->p2p_group = p2p_group; 1102 #ifdef CONFIG_P2P 1103 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1104 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1105 if (ssid->ssid) { 1106 ssid->ssid_len = wpa_s->go_params->ssid_len; 1107 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1108 ssid->ssid_len); 1109 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1110 "SSID", ssid->ssid, ssid->ssid_len); 1111 } 1112 } 1113 #endif /* CONFIG_P2P */ 1114 if (pin) 1115 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"", 1116 pin, dev_pw_id); 1117 else { 1118 rpin = wps_generate_pin(); 1119 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"", 1120 rpin, dev_pw_id); 1121 } 1122 if (wpa_config_set(ssid, "phase1", val, 0) < 0) 1123 return -1; 1124 if (wpa_s->wps_fragment_size) 1125 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1126 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1127 wpa_s, NULL); 1128 wpa_s->wps_ap_iter = 1; 1129 wpas_wps_reassoc(wpa_s, ssid, bssid); 1130 return rpin; 1131 } 1132 1133 1134 /* Cancel the wps pbc/pin requests */ 1135 int wpas_wps_cancel(struct wpa_supplicant *wpa_s) 1136 { 1137 #ifdef CONFIG_AP 1138 if (wpa_s->ap_iface) { 1139 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode"); 1140 return wpa_supplicant_ap_wps_cancel(wpa_s); 1141 } 1142 #endif /* CONFIG_AP */ 1143 1144 if (wpa_s->wpa_state == WPA_SCANNING || 1145 wpa_s->wpa_state == WPA_DISCONNECTED) { 1146 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan"); 1147 wpa_supplicant_cancel_scan(wpa_s); 1148 wpas_clear_wps(wpa_s); 1149 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) { 1150 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - " 1151 "deauthenticate"); 1152 wpa_supplicant_deauthenticate(wpa_s, 1153 WLAN_REASON_DEAUTH_LEAVING); 1154 wpas_clear_wps(wpa_s); 1155 } else { 1156 wpas_wps_reenable_networks(wpa_s); 1157 wpas_wps_clear_ap_info(wpa_s); 1158 } 1159 1160 return 0; 1161 } 1162 1163 1164 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, 1165 const char *pin, struct wps_new_ap_settings *settings) 1166 { 1167 struct wpa_ssid *ssid; 1168 char val[200]; 1169 char *pos, *end; 1170 int res; 1171 1172 if (!pin) 1173 return -1; 1174 wpas_clear_wps(wpa_s); 1175 ssid = wpas_wps_add_network(wpa_s, 1, bssid); 1176 if (ssid == NULL) 1177 return -1; 1178 ssid->temporary = 1; 1179 pos = val; 1180 end = pos + sizeof(val); 1181 res = os_snprintf(pos, end - pos, "\"pin=%s", pin); 1182 if (res < 0 || res >= end - pos) 1183 return -1; 1184 pos += res; 1185 if (settings) { 1186 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s " 1187 "new_encr=%s new_key=%s", 1188 settings->ssid_hex, settings->auth, 1189 settings->encr, settings->key_hex); 1190 if (res < 0 || res >= end - pos) 1191 return -1; 1192 pos += res; 1193 } 1194 res = os_snprintf(pos, end - pos, "\""); 1195 if (res < 0 || res >= end - pos) 1196 return -1; 1197 if (wpa_config_set(ssid, "phase1", val, 0) < 0) 1198 return -1; 1199 if (wpa_s->wps_fragment_size) 1200 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1201 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1202 wpa_s, NULL); 1203 wpas_wps_reassoc(wpa_s, ssid, bssid); 1204 return 0; 1205 } 1206 1207 1208 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, 1209 const u8 *p2p_dev_addr, const u8 *psk, 1210 size_t psk_len) 1211 { 1212 if (is_zero_ether_addr(p2p_dev_addr)) { 1213 wpa_printf(MSG_DEBUG, 1214 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR, 1215 MAC2STR(mac_addr)); 1216 } else { 1217 wpa_printf(MSG_DEBUG, 1218 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR 1219 " P2P Device Addr " MACSTR, 1220 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); 1221 } 1222 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 1223 1224 /* TODO */ 1225 1226 return 0; 1227 } 1228 1229 1230 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 1231 const struct wps_device_data *dev) 1232 { 1233 char uuid[40], txt[400]; 1234 int len; 1235 char devtype[WPS_DEV_TYPE_BUFSIZE]; 1236 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 1237 return; 1238 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid); 1239 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR 1240 " [%s|%s|%s|%s|%s|%s]", 1241 uuid, MAC2STR(dev->mac_addr), dev->device_name, 1242 dev->manufacturer, dev->model_name, 1243 dev->model_number, dev->serial_number, 1244 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 1245 sizeof(devtype))); 1246 if (len > 0 && len < (int) sizeof(txt)) 1247 wpa_printf(MSG_INFO, "%s", txt); 1248 } 1249 1250 1251 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id, 1252 u16 sel_reg_config_methods) 1253 { 1254 #ifdef CONFIG_WPS_ER 1255 struct wpa_supplicant *wpa_s = ctx; 1256 1257 if (wpa_s->wps_er == NULL) 1258 return; 1259 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d " 1260 "dev_password_id=%u sel_reg_config_methods=0x%x", 1261 sel_reg, dev_passwd_id, sel_reg_config_methods); 1262 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id, 1263 sel_reg_config_methods); 1264 #endif /* CONFIG_WPS_ER */ 1265 } 1266 1267 1268 static u16 wps_fix_config_methods(u16 config_methods) 1269 { 1270 #ifdef CONFIG_WPS2 1271 if ((config_methods & 1272 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 1273 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 1274 wpa_printf(MSG_INFO, "WPS: Converting display to " 1275 "virtual_display for WPS 2.0 compliance"); 1276 config_methods |= WPS_CONFIG_VIRT_DISPLAY; 1277 } 1278 if ((config_methods & 1279 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 1280 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 1281 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 1282 "virtual_push_button for WPS 2.0 compliance"); 1283 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 1284 } 1285 #endif /* CONFIG_WPS2 */ 1286 1287 return config_methods; 1288 } 1289 1290 1291 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s, 1292 struct wps_context *wps) 1293 { 1294 wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname); 1295 if (is_nil_uuid(wpa_s->conf->uuid)) { 1296 struct wpa_supplicant *first; 1297 first = wpa_s->global->ifaces; 1298 while (first && first->next) 1299 first = first->next; 1300 if (first && first != wpa_s) { 1301 if (wps != wpa_s->global->ifaces->wps) 1302 os_memcpy(wps->uuid, 1303 wpa_s->global->ifaces->wps->uuid, 1304 WPS_UUID_LEN); 1305 wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first " 1306 "interface", wps->uuid, WPS_UUID_LEN); 1307 } else { 1308 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); 1309 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC " 1310 "address", wps->uuid, WPS_UUID_LEN); 1311 } 1312 } else { 1313 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 1314 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration", 1315 wps->uuid, WPS_UUID_LEN); 1316 } 1317 } 1318 1319 1320 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s, 1321 struct wps_context *wps) 1322 { 1323 wpabuf_free(wps->dev.vendor_ext_m1); 1324 wps->dev.vendor_ext_m1 = NULL; 1325 1326 if (wpa_s->conf->wps_vendor_ext_m1) { 1327 wps->dev.vendor_ext_m1 = 1328 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1); 1329 if (!wps->dev.vendor_ext_m1) { 1330 wpa_printf(MSG_ERROR, "WPS: Cannot " 1331 "allocate memory for vendor_ext_m1"); 1332 } 1333 } 1334 } 1335 1336 1337 int wpas_wps_init(struct wpa_supplicant *wpa_s) 1338 { 1339 struct wps_context *wps; 1340 struct wps_registrar_config rcfg; 1341 struct hostapd_hw_modes *modes; 1342 u16 m; 1343 1344 wps = os_zalloc(sizeof(*wps)); 1345 if (wps == NULL) 1346 return -1; 1347 1348 wps->cred_cb = wpa_supplicant_wps_cred; 1349 wps->event_cb = wpa_supplicant_wps_event; 1350 wps->rf_band_cb = wpa_supplicant_wps_rf_band; 1351 wps->cb_ctx = wpa_s; 1352 1353 wps->dev.device_name = wpa_s->conf->device_name; 1354 wps->dev.manufacturer = wpa_s->conf->manufacturer; 1355 wps->dev.model_name = wpa_s->conf->model_name; 1356 wps->dev.model_number = wpa_s->conf->model_number; 1357 wps->dev.serial_number = wpa_s->conf->serial_number; 1358 wps->config_methods = 1359 wps_config_methods_str2bin(wpa_s->conf->config_methods); 1360 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 1361 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 1362 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " 1363 "methods are not allowed at the same time"); 1364 os_free(wps); 1365 return -1; 1366 } 1367 wps->config_methods = wps_fix_config_methods(wps->config_methods); 1368 wps->dev.config_methods = wps->config_methods; 1369 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 1370 WPS_DEV_TYPE_LEN); 1371 1372 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 1373 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 1374 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); 1375 1376 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 1377 1378 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 1379 modes = wpa_s->hw.modes; 1380 if (modes) { 1381 for (m = 0; m < wpa_s->hw.num_modes; m++) { 1382 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B || 1383 modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1384 wps->dev.rf_bands |= WPS_RF_24GHZ; 1385 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A) 1386 wps->dev.rf_bands |= WPS_RF_50GHZ; 1387 } 1388 } 1389 if (wps->dev.rf_bands == 0) { 1390 /* 1391 * Default to claiming support for both bands if the driver 1392 * does not provide support for fetching supported bands. 1393 */ 1394 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; 1395 } 1396 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); 1397 wpas_wps_set_uuid(wpa_s, wps); 1398 1399 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1400 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1401 1402 os_memset(&rcfg, 0, sizeof(rcfg)); 1403 rcfg.new_psk_cb = wpas_wps_new_psk_cb; 1404 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb; 1405 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb; 1406 rcfg.cb_ctx = wpa_s; 1407 1408 wps->registrar = wps_registrar_init(wps, &rcfg); 1409 if (wps->registrar == NULL) { 1410 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar"); 1411 os_free(wps); 1412 return -1; 1413 } 1414 1415 wpa_s->wps = wps; 1416 1417 return 0; 1418 } 1419 1420 1421 void wpas_wps_deinit(struct wpa_supplicant *wpa_s) 1422 { 1423 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 1424 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 1425 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 1426 wpas_wps_clear_ap_info(wpa_s); 1427 1428 if (wpa_s->wps == NULL) 1429 return; 1430 1431 #ifdef CONFIG_WPS_ER 1432 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1433 wpa_s->wps_er = NULL; 1434 #endif /* CONFIG_WPS_ER */ 1435 1436 wps_registrar_deinit(wpa_s->wps->registrar); 1437 wpabuf_free(wpa_s->wps->dh_pubkey); 1438 wpabuf_free(wpa_s->wps->dh_privkey); 1439 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1); 1440 os_free(wpa_s->wps->network_key); 1441 os_free(wpa_s->wps); 1442 wpa_s->wps = NULL; 1443 } 1444 1445 1446 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, 1447 struct wpa_ssid *ssid, struct wpa_bss *bss) 1448 { 1449 struct wpabuf *wps_ie; 1450 1451 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) 1452 return -1; 1453 1454 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1455 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1456 if (!wps_ie) { 1457 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1458 return 0; 1459 } 1460 1461 if (!wps_is_selected_pbc_registrar(wps_ie)) { 1462 wpa_printf(MSG_DEBUG, " skip - WPS AP " 1463 "without active PBC Registrar"); 1464 wpabuf_free(wps_ie); 1465 return 0; 1466 } 1467 1468 /* TODO: overlap detection */ 1469 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1470 "(Active PBC)"); 1471 wpabuf_free(wps_ie); 1472 return 1; 1473 } 1474 1475 if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1476 if (!wps_ie) { 1477 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1478 return 0; 1479 } 1480 1481 /* 1482 * Start with WPS APs that advertise our address as an 1483 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and 1484 * allow any WPS AP after couple of scans since some APs do not 1485 * set Selected Registrar attribute properly when using 1486 * external Registrar. 1487 */ 1488 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { 1489 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) { 1490 wpa_printf(MSG_DEBUG, " skip - WPS AP " 1491 "without active PIN Registrar"); 1492 wpabuf_free(wps_ie); 1493 return 0; 1494 } 1495 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1496 } else { 1497 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1498 "(Authorized MAC or Active PIN)"); 1499 } 1500 wpabuf_free(wps_ie); 1501 return 1; 1502 } 1503 1504 if (wps_ie) { 1505 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1506 wpabuf_free(wps_ie); 1507 return 1; 1508 } 1509 1510 return -1; 1511 } 1512 1513 1514 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, 1515 struct wpa_ssid *ssid, 1516 struct wpa_bss *bss) 1517 { 1518 struct wpabuf *wps_ie = NULL; 1519 int ret = 0; 1520 1521 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1522 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1523 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { 1524 /* allow wildcard SSID for WPS PBC */ 1525 ret = 1; 1526 } 1527 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1528 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1529 if (wps_ie && 1530 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || 1531 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { 1532 /* allow wildcard SSID for WPS PIN */ 1533 ret = 1; 1534 } 1535 } 1536 1537 if (!ret && ssid->bssid_set && 1538 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) { 1539 /* allow wildcard SSID due to hardcoded BSSID match */ 1540 ret = 1; 1541 } 1542 1543 #ifdef CONFIG_WPS_STRICT 1544 if (wps_ie) { 1545 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > 1546 0, bss->bssid) < 0) 1547 ret = 0; 1548 if (bss->beacon_ie_len) { 1549 struct wpabuf *bcn_wps; 1550 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon( 1551 bss, WPS_IE_VENDOR_TYPE); 1552 if (bcn_wps == NULL) { 1553 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " 1554 "missing from AP Beacon"); 1555 ret = 0; 1556 } else { 1557 if (wps_validate_beacon(wps_ie) < 0) 1558 ret = 0; 1559 wpabuf_free(bcn_wps); 1560 } 1561 } 1562 } 1563 #endif /* CONFIG_WPS_STRICT */ 1564 1565 wpabuf_free(wps_ie); 1566 1567 return ret; 1568 } 1569 1570 1571 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, 1572 struct wpa_bss *selected, struct wpa_ssid *ssid) 1573 { 1574 const u8 *sel_uuid, *uuid; 1575 struct wpabuf *wps_ie; 1576 int ret = 0; 1577 struct wpa_bss *bss; 1578 1579 if (!eap_is_wps_pbc_enrollee(&ssid->eap)) 1580 return 0; 1581 1582 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " 1583 "present in scan results; selected BSSID " MACSTR, 1584 MAC2STR(selected->bssid)); 1585 1586 /* Make sure that only one AP is in active PBC mode */ 1587 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); 1588 if (wps_ie) { 1589 sel_uuid = wps_get_uuid_e(wps_ie); 1590 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", 1591 sel_uuid, UUID_LEN); 1592 } else { 1593 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " 1594 "WPS IE?!"); 1595 sel_uuid = NULL; 1596 } 1597 1598 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1599 struct wpabuf *ie; 1600 if (bss == selected) 1601 continue; 1602 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1603 if (!ie) 1604 continue; 1605 if (!wps_is_selected_pbc_registrar(ie)) { 1606 wpabuf_free(ie); 1607 continue; 1608 } 1609 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " 1610 MACSTR, MAC2STR(bss->bssid)); 1611 uuid = wps_get_uuid_e(ie); 1612 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", 1613 uuid, UUID_LEN); 1614 if (sel_uuid == NULL || uuid == NULL || 1615 os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) { 1616 ret = 1; /* PBC overlap */ 1617 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " 1618 MACSTR " and " MACSTR, 1619 MAC2STR(selected->bssid), 1620 MAC2STR(bss->bssid)); 1621 wpabuf_free(ie); 1622 break; 1623 } 1624 1625 /* TODO: verify that this is reasonable dual-band situation */ 1626 1627 wpabuf_free(ie); 1628 } 1629 1630 wpabuf_free(wps_ie); 1631 1632 return ret; 1633 } 1634 1635 1636 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) 1637 { 1638 struct wpa_bss *bss; 1639 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; 1640 1641 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) 1642 return; 1643 1644 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1645 struct wpabuf *ie; 1646 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1647 if (!ie) 1648 continue; 1649 if (wps_is_selected_pbc_registrar(ie)) 1650 pbc++; 1651 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) 1652 auth++; 1653 else if (wps_is_selected_pin_registrar(ie)) 1654 pin++; 1655 else 1656 wps++; 1657 wpabuf_free(ie); 1658 } 1659 1660 if (pbc) 1661 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); 1662 else if (auth) 1663 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); 1664 else if (pin) 1665 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); 1666 else if (wps) 1667 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); 1668 } 1669 1670 1671 int wpas_wps_searching(struct wpa_supplicant *wpa_s) 1672 { 1673 struct wpa_ssid *ssid; 1674 1675 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1676 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled) 1677 return 1; 1678 } 1679 1680 return 0; 1681 } 1682 1683 1684 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 1685 char *end) 1686 { 1687 struct wpabuf *wps_ie; 1688 int ret; 1689 1690 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA); 1691 if (wps_ie == NULL) 1692 return 0; 1693 1694 ret = wps_attr_text(wps_ie, buf, end); 1695 wpabuf_free(wps_ie); 1696 return ret; 1697 } 1698 1699 1700 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) 1701 { 1702 #ifdef CONFIG_WPS_ER 1703 if (wpa_s->wps_er) { 1704 wps_er_refresh(wpa_s->wps_er); 1705 return 0; 1706 } 1707 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); 1708 if (wpa_s->wps_er == NULL) 1709 return -1; 1710 return 0; 1711 #else /* CONFIG_WPS_ER */ 1712 return 0; 1713 #endif /* CONFIG_WPS_ER */ 1714 } 1715 1716 1717 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s) 1718 { 1719 #ifdef CONFIG_WPS_ER 1720 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1721 wpa_s->wps_er = NULL; 1722 #endif /* CONFIG_WPS_ER */ 1723 return 0; 1724 } 1725 1726 1727 #ifdef CONFIG_WPS_ER 1728 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, 1729 const char *uuid, const char *pin) 1730 { 1731 u8 u[UUID_LEN]; 1732 const u8 *use_uuid = NULL; 1733 u8 addr_buf[ETH_ALEN]; 1734 1735 if (os_strcmp(uuid, "any") == 0) { 1736 } else if (uuid_str2bin(uuid, u) == 0) { 1737 use_uuid = u; 1738 } else if (hwaddr_aton(uuid, addr_buf) == 0) { 1739 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf); 1740 if (use_uuid == NULL) 1741 return -1; 1742 } else 1743 return -1; 1744 return wps_registrar_add_pin(wpa_s->wps->registrar, addr, 1745 use_uuid, 1746 (const u8 *) pin, os_strlen(pin), 300); 1747 } 1748 1749 1750 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) 1751 { 1752 u8 u[UUID_LEN], *use_uuid = NULL; 1753 u8 addr[ETH_ALEN], *use_addr = NULL; 1754 1755 if (uuid_str2bin(uuid, u) == 0) 1756 use_uuid = u; 1757 else if (hwaddr_aton(uuid, addr) == 0) 1758 use_addr = addr; 1759 else 1760 return -1; 1761 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr); 1762 } 1763 1764 1765 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, 1766 const char *pin) 1767 { 1768 u8 u[UUID_LEN], *use_uuid = NULL; 1769 u8 addr[ETH_ALEN], *use_addr = NULL; 1770 1771 if (uuid_str2bin(uuid, u) == 0) 1772 use_uuid = u; 1773 else if (hwaddr_aton(uuid, addr) == 0) 1774 use_addr = addr; 1775 else 1776 return -1; 1777 1778 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin, 1779 os_strlen(pin)); 1780 } 1781 1782 1783 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid, 1784 struct wps_credential *cred) 1785 { 1786 os_memset(cred, 0, sizeof(*cred)); 1787 if (ssid->ssid_len > 32) 1788 return -1; 1789 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len); 1790 cred->ssid_len = ssid->ssid_len; 1791 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 1792 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ? 1793 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; 1794 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 1795 cred->encr_type = WPS_ENCR_AES; 1796 else 1797 cred->encr_type = WPS_ENCR_TKIP; 1798 if (ssid->passphrase) { 1799 cred->key_len = os_strlen(ssid->passphrase); 1800 if (cred->key_len >= 64) 1801 return -1; 1802 os_memcpy(cred->key, ssid->passphrase, cred->key_len); 1803 } else if (ssid->psk_set) { 1804 cred->key_len = 32; 1805 os_memcpy(cred->key, ssid->psk, 32); 1806 } else 1807 return -1; 1808 } else { 1809 cred->auth_type = WPS_AUTH_OPEN; 1810 cred->encr_type = WPS_ENCR_NONE; 1811 } 1812 1813 return 0; 1814 } 1815 1816 1817 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, 1818 int id) 1819 { 1820 u8 u[UUID_LEN], *use_uuid = NULL; 1821 u8 addr[ETH_ALEN], *use_addr = NULL; 1822 struct wpa_ssid *ssid; 1823 struct wps_credential cred; 1824 1825 if (uuid_str2bin(uuid, u) == 0) 1826 use_uuid = u; 1827 else if (hwaddr_aton(uuid, addr) == 0) 1828 use_addr = addr; 1829 else 1830 return -1; 1831 ssid = wpa_config_get_network(wpa_s->conf, id); 1832 if (ssid == NULL || ssid->ssid == NULL) 1833 return -1; 1834 1835 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 1836 return -1; 1837 return wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred); 1838 } 1839 1840 1841 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, 1842 const char *pin, struct wps_new_ap_settings *settings) 1843 { 1844 u8 u[UUID_LEN], *use_uuid = NULL; 1845 u8 addr[ETH_ALEN], *use_addr = NULL; 1846 struct wps_credential cred; 1847 size_t len; 1848 1849 if (uuid_str2bin(uuid, u) == 0) 1850 use_uuid = u; 1851 else if (hwaddr_aton(uuid, addr) == 0) 1852 use_addr = addr; 1853 else 1854 return -1; 1855 if (settings->ssid_hex == NULL || settings->auth == NULL || 1856 settings->encr == NULL || settings->key_hex == NULL) 1857 return -1; 1858 1859 os_memset(&cred, 0, sizeof(cred)); 1860 len = os_strlen(settings->ssid_hex); 1861 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 1862 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) 1863 return -1; 1864 cred.ssid_len = len / 2; 1865 1866 len = os_strlen(settings->key_hex); 1867 if ((len & 1) || len > 2 * sizeof(cred.key) || 1868 hexstr2bin(settings->key_hex, cred.key, len / 2)) 1869 return -1; 1870 cred.key_len = len / 2; 1871 1872 if (os_strcmp(settings->auth, "OPEN") == 0) 1873 cred.auth_type = WPS_AUTH_OPEN; 1874 else if (os_strcmp(settings->auth, "WPAPSK") == 0) 1875 cred.auth_type = WPS_AUTH_WPAPSK; 1876 else if (os_strcmp(settings->auth, "WPA2PSK") == 0) 1877 cred.auth_type = WPS_AUTH_WPA2PSK; 1878 else 1879 return -1; 1880 1881 if (os_strcmp(settings->encr, "NONE") == 0) 1882 cred.encr_type = WPS_ENCR_NONE; 1883 else if (os_strcmp(settings->encr, "WEP") == 0) 1884 cred.encr_type = WPS_ENCR_WEP; 1885 else if (os_strcmp(settings->encr, "TKIP") == 0) 1886 cred.encr_type = WPS_ENCR_TKIP; 1887 else if (os_strcmp(settings->encr, "CCMP") == 0) 1888 cred.encr_type = WPS_ENCR_AES; 1889 else 1890 return -1; 1891 1892 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr, 1893 (const u8 *) pin, os_strlen(pin), &cred); 1894 } 1895 1896 1897 #ifdef CONFIG_WPS_NFC 1898 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s, 1899 int ndef, const char *uuid) 1900 { 1901 struct wpabuf *ret; 1902 u8 u[UUID_LEN], *use_uuid = NULL; 1903 u8 addr[ETH_ALEN], *use_addr = NULL; 1904 1905 if (!wpa_s->wps_er) 1906 return NULL; 1907 1908 if (uuid_str2bin(uuid, u) == 0) 1909 use_uuid = u; 1910 else if (hwaddr_aton(uuid, addr) == 0) 1911 use_addr = addr; 1912 else 1913 return NULL; 1914 1915 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); 1916 if (ndef && ret) { 1917 struct wpabuf *tmp; 1918 tmp = ndef_build_wifi(ret); 1919 wpabuf_free(ret); 1920 if (tmp == NULL) 1921 return NULL; 1922 ret = tmp; 1923 } 1924 1925 return ret; 1926 } 1927 #endif /* CONFIG_WPS_NFC */ 1928 1929 1930 static int callbacks_pending = 0; 1931 1932 static void wpas_wps_terminate_cb(void *ctx) 1933 { 1934 wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); 1935 if (--callbacks_pending <= 0) 1936 eloop_terminate(); 1937 } 1938 #endif /* CONFIG_WPS_ER */ 1939 1940 1941 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) 1942 { 1943 #ifdef CONFIG_WPS_ER 1944 if (wpa_s->wps_er) { 1945 callbacks_pending++; 1946 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); 1947 wpa_s->wps_er = NULL; 1948 return 1; 1949 } 1950 #endif /* CONFIG_WPS_ER */ 1951 return 0; 1952 } 1953 1954 1955 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s) 1956 { 1957 struct wpa_ssid *ssid; 1958 1959 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1960 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS) 1961 return 1; 1962 } 1963 1964 return 0; 1965 } 1966 1967 1968 void wpas_wps_update_config(struct wpa_supplicant *wpa_s) 1969 { 1970 struct wps_context *wps = wpa_s->wps; 1971 1972 if (wps == NULL) 1973 return; 1974 1975 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { 1976 wps->config_methods = wps_config_methods_str2bin( 1977 wpa_s->conf->config_methods); 1978 if ((wps->config_methods & 1979 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 1980 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 1981 wpa_printf(MSG_ERROR, "WPS: Both Label and Display " 1982 "config methods are not allowed at the " 1983 "same time"); 1984 wps->config_methods &= ~WPS_CONFIG_LABEL; 1985 } 1986 } 1987 wps->config_methods = wps_fix_config_methods(wps->config_methods); 1988 wps->dev.config_methods = wps->config_methods; 1989 1990 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) 1991 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 1992 WPS_DEV_TYPE_LEN); 1993 1994 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { 1995 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 1996 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 1997 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); 1998 } 1999 2000 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) 2001 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 2002 2003 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) 2004 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 2005 2006 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) 2007 wpas_wps_set_uuid(wpa_s, wps); 2008 2009 if (wpa_s->conf->changed_parameters & 2010 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { 2011 /* Update pointers to make sure they refer current values */ 2012 wps->dev.device_name = wpa_s->conf->device_name; 2013 wps->dev.manufacturer = wpa_s->conf->manufacturer; 2014 wps->dev.model_name = wpa_s->conf->model_name; 2015 wps->dev.model_number = wpa_s->conf->model_number; 2016 wps->dev.serial_number = wpa_s->conf->serial_number; 2017 } 2018 } 2019 2020 2021 #ifdef CONFIG_WPS_NFC 2022 2023 #ifdef CONFIG_WPS_ER 2024 static struct wpabuf * 2025 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef, 2026 struct wpa_ssid *ssid) 2027 { 2028 struct wpabuf *ret; 2029 struct wps_credential cred; 2030 2031 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2032 return NULL; 2033 2034 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred); 2035 2036 if (ndef && ret) { 2037 struct wpabuf *tmp; 2038 tmp = ndef_build_wifi(ret); 2039 wpabuf_free(ret); 2040 if (tmp == NULL) 2041 return NULL; 2042 ret = tmp; 2043 } 2044 2045 return ret; 2046 } 2047 #endif /* CONFIG_WPS_ER */ 2048 2049 2050 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 2051 int ndef, const char *id_str) 2052 { 2053 #ifdef CONFIG_WPS_ER 2054 if (id_str) { 2055 int id; 2056 char *end = NULL; 2057 struct wpa_ssid *ssid; 2058 2059 id = strtol(id_str, &end, 10); 2060 if (end && *end) 2061 return NULL; 2062 2063 ssid = wpa_config_get_network(wpa_s->conf, id); 2064 if (ssid == NULL) 2065 return NULL; 2066 return wpas_wps_network_config_token(wpa_s, ndef, ssid); 2067 } 2068 #endif /* CONFIG_WPS_ER */ 2069 #ifdef CONFIG_AP 2070 if (wpa_s->ap_iface) 2071 return wpas_ap_wps_nfc_config_token(wpa_s, ndef); 2072 #endif /* CONFIG_AP */ 2073 return NULL; 2074 } 2075 2076 2077 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef) 2078 { 2079 if (wpa_s->conf->wps_nfc_pw_from_config) { 2080 return wps_nfc_token_build(ndef, 2081 wpa_s->conf->wps_nfc_dev_pw_id, 2082 wpa_s->conf->wps_nfc_dh_pubkey, 2083 wpa_s->conf->wps_nfc_dev_pw); 2084 } 2085 2086 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id, 2087 &wpa_s->conf->wps_nfc_dh_pubkey, 2088 &wpa_s->conf->wps_nfc_dh_privkey, 2089 &wpa_s->conf->wps_nfc_dev_pw); 2090 } 2091 2092 2093 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid) 2094 { 2095 struct wps_context *wps = wpa_s->wps; 2096 char pw[32 * 2 + 1]; 2097 2098 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || 2099 wpa_s->conf->wps_nfc_dh_privkey == NULL || 2100 wpa_s->conf->wps_nfc_dev_pw == NULL) 2101 return -1; 2102 2103 dh5_free(wps->dh_ctx); 2104 wpabuf_free(wps->dh_pubkey); 2105 wpabuf_free(wps->dh_privkey); 2106 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2107 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2108 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { 2109 wps->dh_ctx = NULL; 2110 wpabuf_free(wps->dh_pubkey); 2111 wps->dh_pubkey = NULL; 2112 wpabuf_free(wps->dh_privkey); 2113 wps->dh_privkey = NULL; 2114 return -1; 2115 } 2116 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); 2117 if (wps->dh_ctx == NULL) { 2118 wpabuf_free(wps->dh_pubkey); 2119 wps->dh_pubkey = NULL; 2120 wpabuf_free(wps->dh_privkey); 2121 wps->dh_privkey = NULL; 2122 return -1; 2123 } 2124 2125 wpa_snprintf_hex_uppercase(pw, sizeof(pw), 2126 wpabuf_head(wpa_s->conf->wps_nfc_dev_pw), 2127 wpabuf_len(wpa_s->conf->wps_nfc_dev_pw)); 2128 return wpas_wps_start_pin(wpa_s, bssid, pw, 0, 2129 wpa_s->conf->wps_nfc_dev_pw_id); 2130 } 2131 2132 2133 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s, 2134 struct wps_parse_attr *attr) 2135 { 2136 wpa_s->wps_ap_channel = 0; 2137 2138 /* 2139 * Disable existing networks temporarily to allow the newly learned 2140 * credential to be preferred. Enable the temporarily disabled networks 2141 * after 10 seconds. 2142 */ 2143 wpas_wps_temp_disable(wpa_s, NULL); 2144 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 2145 NULL); 2146 2147 if (wps_oob_use_cred(wpa_s->wps, attr) < 0) 2148 return -1; 2149 2150 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2151 return 0; 2152 2153 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network " 2154 "based on the received credential added"); 2155 wpa_s->normal_scans = 0; 2156 wpa_supplicant_reinit_autoscan(wpa_s); 2157 if (wpa_s->wps_ap_channel) { 2158 u16 chan = wpa_s->wps_ap_channel; 2159 int freq = 0; 2160 2161 if (chan >= 1 && chan <= 13) 2162 freq = 2407 + 5 * chan; 2163 else if (chan == 14) 2164 freq = 2484; 2165 else if (chan >= 30) 2166 freq = 5000 + 5 * chan; 2167 2168 if (freq) { 2169 wpa_printf(MSG_DEBUG, "WPS: Credential indicated " 2170 "AP channel %u -> %u MHz", chan, freq); 2171 wpa_s->after_wps = 5; 2172 wpa_s->wps_freq = freq; 2173 } 2174 } 2175 wpa_s->disconnected = 0; 2176 wpa_s->reassociate = 1; 2177 wpa_supplicant_req_scan(wpa_s, 0, 0); 2178 2179 return 0; 2180 } 2181 2182 2183 #ifdef CONFIG_WPS_ER 2184 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s, 2185 struct wps_parse_attr *attr) 2186 { 2187 return wps_registrar_add_nfc_password_token( 2188 wpa_s->wps->registrar, attr->oob_dev_password, 2189 attr->oob_dev_password_len); 2190 } 2191 #endif /* CONFIG_WPS_ER */ 2192 2193 2194 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s, 2195 const struct wpabuf *wps) 2196 { 2197 struct wps_parse_attr attr; 2198 2199 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2200 2201 if (wps_parse_msg(wps, &attr)) { 2202 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2203 return -1; 2204 } 2205 2206 if (attr.num_cred) 2207 return wpas_wps_use_cred(wpa_s, &attr); 2208 2209 #ifdef CONFIG_WPS_ER 2210 if (attr.oob_dev_password) 2211 return wpas_wps_add_nfc_password_token(wpa_s, &attr); 2212 #endif /* CONFIG_WPS_ER */ 2213 2214 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2215 return -1; 2216 } 2217 2218 2219 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s, 2220 const struct wpabuf *data) 2221 { 2222 const struct wpabuf *wps = data; 2223 struct wpabuf *tmp = NULL; 2224 int ret; 2225 2226 if (wpabuf_len(data) < 4) 2227 return -1; 2228 2229 if (*wpabuf_head_u8(data) != 0x10) { 2230 /* Assume this contains full NDEF record */ 2231 tmp = ndef_parse_wifi(data); 2232 if (tmp == NULL) { 2233 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2234 return -1; 2235 } 2236 wps = tmp; 2237 } 2238 2239 ret = wpas_wps_nfc_tag_process(wpa_s, wps); 2240 wpabuf_free(tmp); 2241 return ret; 2242 } 2243 2244 2245 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, int cr) 2246 { 2247 if (cr) 2248 return ndef_build_wifi_hc(1); 2249 return ndef_build_wifi_hr(); 2250 } 2251 2252 2253 #ifdef CONFIG_WPS_NFC 2254 struct wpabuf * wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, 2255 int ndef, const char *uuid) 2256 { 2257 #ifdef CONFIG_WPS_ER 2258 struct wpabuf *ret; 2259 u8 u[UUID_LEN], *use_uuid = NULL; 2260 u8 addr[ETH_ALEN], *use_addr = NULL; 2261 2262 if (!wpa_s->wps_er) 2263 return NULL; 2264 2265 if (uuid == NULL) 2266 return NULL; 2267 if (uuid_str2bin(uuid, u) == 0) 2268 use_uuid = u; 2269 else if (hwaddr_aton(uuid, addr) == 0) 2270 use_addr = addr; 2271 else 2272 return NULL; 2273 2274 /* 2275 * Handover Select carrier record for WPS uses the same format as 2276 * configuration token. 2277 */ 2278 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); 2279 if (ndef && ret) { 2280 struct wpabuf *tmp; 2281 tmp = ndef_build_wifi(ret); 2282 wpabuf_free(ret); 2283 if (tmp == NULL) 2284 return NULL; 2285 ret = tmp; 2286 } 2287 2288 return ret; 2289 #else /* CONFIG_WPS_ER */ 2290 return NULL; 2291 #endif /* CONFIG_WPS_ER */ 2292 } 2293 #endif /* CONFIG_WPS_NFC */ 2294 2295 2296 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 2297 int ndef, int cr, const char *uuid) 2298 { 2299 struct wpabuf *ret; 2300 if (!cr) 2301 return NULL; 2302 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef); 2303 if (ret) 2304 return ret; 2305 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid); 2306 } 2307 2308 2309 int wpas_wps_nfc_rx_handover_req(struct wpa_supplicant *wpa_s, 2310 const struct wpabuf *data) 2311 { 2312 /* TODO */ 2313 return -1; 2314 } 2315 2316 2317 int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s, 2318 const struct wpabuf *data) 2319 { 2320 struct wpabuf *wps; 2321 int ret; 2322 2323 wps = ndef_parse_wifi(data); 2324 if (wps == NULL) 2325 return -1; 2326 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2327 "payload from NFC connection handover"); 2328 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: NFC payload", wps); 2329 ret = wpas_wps_nfc_tag_process(wpa_s, wps); 2330 wpabuf_free(wps); 2331 2332 return ret; 2333 } 2334 2335 2336 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2337 const struct wpabuf *req, 2338 const struct wpabuf *sel) 2339 { 2340 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported"); 2341 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req); 2342 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel); 2343 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel); 2344 } 2345 2346 #endif /* CONFIG_WPS_NFC */ 2347 2348 2349 extern int wpa_debug_level; 2350 2351 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s) 2352 { 2353 size_t i; 2354 struct os_time now; 2355 2356 if (wpa_debug_level > MSG_DEBUG) 2357 return; 2358 2359 if (wpa_s->wps_ap == NULL) 2360 return; 2361 2362 os_get_time(&now); 2363 2364 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2365 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2366 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid); 2367 2368 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d " 2369 "tries=%d last_attempt=%d sec ago blacklist=%d", 2370 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries, 2371 ap->last_attempt.sec > 0 ? 2372 (int) now.sec - (int) ap->last_attempt.sec : -1, 2373 e ? e->count : 0); 2374 } 2375 } 2376 2377 2378 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s, 2379 const u8 *bssid) 2380 { 2381 size_t i; 2382 2383 if (wpa_s->wps_ap == NULL) 2384 return NULL; 2385 2386 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2387 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2388 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0) 2389 return ap; 2390 } 2391 2392 return NULL; 2393 } 2394 2395 2396 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s, 2397 struct wpa_scan_res *res) 2398 { 2399 struct wpabuf *wps; 2400 enum wps_ap_info_type type; 2401 struct wps_ap_info *ap; 2402 int r; 2403 2404 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL) 2405 return; 2406 2407 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); 2408 if (wps == NULL) 2409 return; 2410 2411 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1); 2412 if (r == 2) 2413 type = WPS_AP_SEL_REG_OUR; 2414 else if (r == 1) 2415 type = WPS_AP_SEL_REG; 2416 else 2417 type = WPS_AP_NOT_SEL_REG; 2418 2419 wpabuf_free(wps); 2420 2421 ap = wpas_wps_get_ap_info(wpa_s, res->bssid); 2422 if (ap) { 2423 if (ap->type != type) { 2424 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR 2425 " changed type %d -> %d", 2426 MAC2STR(res->bssid), ap->type, type); 2427 ap->type = type; 2428 if (type != WPS_AP_NOT_SEL_REG) 2429 wpa_blacklist_del(wpa_s, ap->bssid); 2430 } 2431 return; 2432 } 2433 2434 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1, 2435 sizeof(struct wps_ap_info)); 2436 if (ap == NULL) 2437 return; 2438 2439 wpa_s->wps_ap = ap; 2440 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap]; 2441 wpa_s->num_wps_ap++; 2442 2443 os_memset(ap, 0, sizeof(*ap)); 2444 os_memcpy(ap->bssid, res->bssid, ETH_ALEN); 2445 ap->type = type; 2446 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added", 2447 MAC2STR(ap->bssid), ap->type); 2448 } 2449 2450 2451 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s, 2452 struct wpa_scan_results *scan_res) 2453 { 2454 size_t i; 2455 2456 for (i = 0; i < scan_res->num; i++) 2457 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]); 2458 2459 wpas_wps_dump_ap_info(wpa_s); 2460 } 2461 2462 2463 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid) 2464 { 2465 struct wps_ap_info *ap; 2466 if (!wpa_s->wps_ap_iter) 2467 return; 2468 ap = wpas_wps_get_ap_info(wpa_s, bssid); 2469 if (ap == NULL) 2470 return; 2471 ap->tries++; 2472 os_get_time(&ap->last_attempt); 2473 } 2474
