1 /* 2 * wpa_supplicant / WPS integration 3 * Copyright (c) 2008-2014, Jouni Malinen <j (at) w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "includes.h" 10 11 #include "common.h" 12 #include "eloop.h" 13 #include "uuid.h" 14 #include "crypto/random.h" 15 #include "crypto/dh_group5.h" 16 #include "common/ieee802_11_defs.h" 17 #include "common/ieee802_11_common.h" 18 #include "common/wpa_common.h" 19 #include "common/wpa_ctrl.h" 20 #include "eap_common/eap_wsc_common.h" 21 #include "eap_peer/eap.h" 22 #include "eapol_supp/eapol_supp_sm.h" 23 #include "rsn_supp/wpa.h" 24 #include "wps/wps_attr_parse.h" 25 #include "config.h" 26 #include "wpa_supplicant_i.h" 27 #include "driver_i.h" 28 #include "notify.h" 29 #include "blacklist.h" 30 #include "bss.h" 31 #include "scan.h" 32 #include "ap.h" 33 #include "p2p/p2p.h" 34 #include "p2p_supplicant.h" 35 #include "wps_supplicant.h" 36 37 38 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG 39 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3 40 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */ 41 42 /* 43 * The minimum time in seconds before trying to associate to a WPS PIN AP that 44 * does not have Selected Registrar TRUE. 45 */ 46 #ifndef WPS_PIN_TIME_IGNORE_SEL_REG 47 #define WPS_PIN_TIME_IGNORE_SEL_REG 5 48 #endif /* WPS_PIN_TIME_IGNORE_SEL_REG */ 49 50 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx); 51 static void wpas_clear_wps(struct wpa_supplicant *wpa_s); 52 53 54 static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s) 55 { 56 os_free(wpa_s->wps_ap); 57 wpa_s->wps_ap = NULL; 58 wpa_s->num_wps_ap = 0; 59 wpa_s->wps_ap_iter = 0; 60 } 61 62 63 static void wpas_wps_assoc_with_cred(void *eloop_ctx, void *timeout_ctx) 64 { 65 struct wpa_supplicant *wpa_s = eloop_ctx; 66 int use_fast_assoc = timeout_ctx != NULL; 67 68 wpa_printf(MSG_DEBUG, "WPS: Continuing association after eapol_cb"); 69 if (!use_fast_assoc || 70 wpa_supplicant_fast_associate(wpa_s) != 1) 71 wpa_supplicant_req_scan(wpa_s, 0, 0); 72 } 73 74 75 static void wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant *wpa_s) 76 { 77 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 0); 78 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 1); 79 } 80 81 82 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) 83 { 84 if (wpas_p2p_wps_eapol_cb(wpa_s) > 0) 85 return 1; 86 87 if (!wpa_s->wps_success && 88 wpa_s->current_ssid && 89 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) { 90 const u8 *bssid = wpa_s->bssid; 91 if (is_zero_ether_addr(bssid)) 92 bssid = wpa_s->pending_bssid; 93 94 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR 95 " did not succeed - continue trying to find " 96 "suitable AP", MAC2STR(bssid)); 97 wpa_blacklist_add(wpa_s, bssid); 98 99 wpa_supplicant_deauthenticate(wpa_s, 100 WLAN_REASON_DEAUTH_LEAVING); 101 wpa_s->reassociate = 1; 102 wpa_supplicant_req_scan(wpa_s, 103 wpa_s->blacklist_cleared ? 5 : 0, 0); 104 wpa_s->blacklist_cleared = 0; 105 return 1; 106 } 107 108 wpas_wps_clear_ap_info(wpa_s); 109 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 110 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success) 111 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL); 112 113 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid && 114 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 115 int disabled = wpa_s->current_ssid->disabled; 116 unsigned int freq = wpa_s->assoc_freq; 117 struct wpa_bss *bss; 118 struct wpa_ssid *ssid = NULL; 119 int use_fast_assoc = 0; 120 121 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - " 122 "try to associate with the received credential " 123 "(freq=%u)", freq); 124 wpa_s->own_disconnect_req = 1; 125 wpa_supplicant_deauthenticate(wpa_s, 126 WLAN_REASON_DEAUTH_LEAVING); 127 if (disabled) { 128 wpa_printf(MSG_DEBUG, "WPS: Current network is " 129 "disabled - wait for user to enable"); 130 return 1; 131 } 132 wpa_s->after_wps = 5; 133 wpa_s->wps_freq = freq; 134 wpa_s->normal_scans = 0; 135 wpa_s->reassociate = 1; 136 137 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association " 138 "without a new scan can be used"); 139 bss = wpa_supplicant_pick_network(wpa_s, &ssid); 140 if (bss) { 141 struct wpabuf *wps; 142 struct wps_parse_attr attr; 143 144 wps = wpa_bss_get_vendor_ie_multi(bss, 145 WPS_IE_VENDOR_TYPE); 146 if (wps && wps_parse_msg(wps, &attr) == 0 && 147 attr.wps_state && 148 *attr.wps_state == WPS_STATE_CONFIGURED) 149 use_fast_assoc = 1; 150 wpabuf_free(wps); 151 } 152 153 /* 154 * Complete the next step from an eloop timeout to allow pending 155 * driver events related to the disconnection to be processed 156 * first. This makes it less likely for disconnection event to 157 * cause problems with the following connection. 158 */ 159 wpa_printf(MSG_DEBUG, "WPS: Continue association from timeout"); 160 wpas_wps_assoc_with_cred_cancel(wpa_s); 161 eloop_register_timeout(0, 10000, 162 wpas_wps_assoc_with_cred, wpa_s, 163 use_fast_assoc ? (void *) 1 : 164 (void *) 0); 165 return 1; 166 } 167 168 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) { 169 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting " 170 "for external credential processing"); 171 wpas_clear_wps(wpa_s); 172 wpa_s->own_disconnect_req = 1; 173 wpa_supplicant_deauthenticate(wpa_s, 174 WLAN_REASON_DEAUTH_LEAVING); 175 return 1; 176 } 177 178 return 0; 179 } 180 181 182 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s, 183 struct wpa_ssid *ssid, 184 const struct wps_credential *cred) 185 { 186 struct wpa_driver_capa capa; 187 struct wpa_bss *bss; 188 const u8 *ie; 189 struct wpa_ie_data adv; 190 int wpa2 = 0, ccmp = 0; 191 192 /* 193 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in 194 * case they are configured for mixed mode operation (WPA+WPA2 and 195 * TKIP+CCMP). Try to use scan results to figure out whether the AP 196 * actually supports stronger security and select that if the client 197 * has support for it, too. 198 */ 199 200 if (wpa_drv_get_capa(wpa_s, &capa)) 201 return; /* Unknown what driver supports */ 202 203 if (ssid->ssid == NULL) 204 return; 205 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len); 206 if (!bss) 207 bss = wpa_bss_get(wpa_s, wpa_s->bssid, 208 ssid->ssid, ssid->ssid_len); 209 if (bss == NULL) { 210 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS " 211 "table - use credential as-is"); 212 return; 213 } 214 215 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table"); 216 217 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 218 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) { 219 wpa2 = 1; 220 if (adv.pairwise_cipher & WPA_CIPHER_CCMP) 221 ccmp = 1; 222 } else { 223 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 224 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 && 225 adv.pairwise_cipher & WPA_CIPHER_CCMP) 226 ccmp = 1; 227 } 228 229 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) && 230 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) { 231 /* 232 * TODO: This could be the initial AP configuration and the 233 * Beacon contents could change shortly. Should request a new 234 * scan and delay addition of the network until the updated 235 * scan results are available. 236 */ 237 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA " 238 "support - use credential as-is"); 239 return; 240 } 241 242 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) && 243 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) && 244 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) { 245 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential " 246 "based on scan results"); 247 if (wpa_s->conf->ap_scan == 1) 248 ssid->pairwise_cipher |= WPA_CIPHER_CCMP; 249 else 250 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 251 } 252 253 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) && 254 (ssid->proto & WPA_PROTO_WPA) && 255 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) { 256 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential " 257 "based on scan results"); 258 if (wpa_s->conf->ap_scan == 1) 259 ssid->proto |= WPA_PROTO_RSN; 260 else 261 ssid->proto = WPA_PROTO_RSN; 262 } 263 } 264 265 266 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s, 267 struct wpa_ssid *new_ssid) 268 { 269 struct wpa_ssid *ssid, *next; 270 271 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid; 272 ssid = next, next = ssid ? ssid->next : NULL) { 273 /* 274 * new_ssid has already been added to the list in 275 * wpas_wps_add_network(), so skip it. 276 */ 277 if (ssid == new_ssid) 278 continue; 279 280 if (ssid->bssid_set || new_ssid->bssid_set) { 281 if (ssid->bssid_set != new_ssid->bssid_set) 282 continue; 283 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) != 284 0) 285 continue; 286 } 287 288 /* compare SSID */ 289 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len) 290 continue; 291 292 if (ssid->ssid && new_ssid->ssid) { 293 if (os_memcmp(ssid->ssid, new_ssid->ssid, 294 ssid->ssid_len) != 0) 295 continue; 296 } else if (ssid->ssid || new_ssid->ssid) 297 continue; 298 299 /* compare security parameters */ 300 if (ssid->auth_alg != new_ssid->auth_alg || 301 ssid->key_mgmt != new_ssid->key_mgmt || 302 (ssid->group_cipher != new_ssid->group_cipher && 303 !(ssid->group_cipher & new_ssid->group_cipher & 304 WPA_CIPHER_CCMP))) 305 continue; 306 307 /* 308 * Some existing WPS APs will send two creds in case they are 309 * configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP). 310 * Try to merge these two creds if they are received in the same 311 * M8 message. 312 */ 313 if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run && 314 wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { 315 if (new_ssid->passphrase && ssid->passphrase && 316 os_strcmp(new_ssid->passphrase, ssid->passphrase) != 317 0) { 318 wpa_printf(MSG_DEBUG, 319 "WPS: M8 Creds with different passphrase - do not merge"); 320 continue; 321 } 322 323 if (new_ssid->psk_set && 324 (!ssid->psk_set || 325 os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) { 326 wpa_printf(MSG_DEBUG, 327 "WPS: M8 Creds with different PSK - do not merge"); 328 continue; 329 } 330 331 if ((new_ssid->passphrase && !ssid->passphrase) || 332 (!new_ssid->passphrase && ssid->passphrase)) { 333 wpa_printf(MSG_DEBUG, 334 "WPS: M8 Creds with different passphrase/PSK type - do not merge"); 335 continue; 336 } 337 338 wpa_printf(MSG_DEBUG, 339 "WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message"); 340 new_ssid->proto |= ssid->proto; 341 new_ssid->pairwise_cipher |= ssid->pairwise_cipher; 342 } else { 343 /* 344 * proto and pairwise_cipher difference matter for 345 * non-mixed-mode creds. 346 */ 347 if (ssid->proto != new_ssid->proto || 348 ssid->pairwise_cipher != new_ssid->pairwise_cipher) 349 continue; 350 } 351 352 /* Remove the duplicated older network entry. */ 353 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id); 354 wpas_notify_network_removed(wpa_s, ssid); 355 if (wpa_s->current_ssid == ssid) 356 wpa_s->current_ssid = NULL; 357 wpa_config_remove_network(wpa_s->conf, ssid->id); 358 } 359 } 360 361 362 static int wpa_supplicant_wps_cred(void *ctx, 363 const struct wps_credential *cred) 364 { 365 struct wpa_supplicant *wpa_s = ctx; 366 struct wpa_ssid *ssid = wpa_s->current_ssid; 367 u16 auth_type; 368 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 369 int registrar = 0; 370 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 371 372 if ((wpa_s->conf->wps_cred_processing == 1 || 373 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) { 374 size_t blen = cred->cred_attr_len * 2 + 1; 375 char *buf = os_malloc(blen); 376 if (buf) { 377 wpa_snprintf_hex(buf, blen, 378 cred->cred_attr, cred->cred_attr_len); 379 wpa_msg(wpa_s, MSG_INFO, "%s%s", 380 WPS_EVENT_CRED_RECEIVED, buf); 381 os_free(buf); 382 } 383 384 wpas_notify_wps_credential(wpa_s, cred); 385 } else 386 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED); 387 388 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", 389 cred->cred_attr, cred->cred_attr_len); 390 391 if (wpa_s->conf->wps_cred_processing == 1) 392 return 0; 393 394 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); 395 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", 396 cred->auth_type); 397 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); 398 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); 399 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 400 cred->key, cred->key_len); 401 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, 402 MAC2STR(cred->mac_addr)); 403 404 auth_type = cred->auth_type; 405 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 406 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode " 407 "auth_type into WPA2PSK"); 408 auth_type = WPS_AUTH_WPA2PSK; 409 } 410 411 if (auth_type != WPS_AUTH_OPEN && 412 auth_type != WPS_AUTH_WPAPSK && 413 auth_type != WPS_AUTH_WPA2PSK) { 414 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for " 415 "unsupported authentication type 0x%x", 416 auth_type); 417 return 0; 418 } 419 420 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) { 421 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) { 422 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with " 423 "invalid Network Key length %lu", 424 (unsigned long) cred->key_len); 425 return -1; 426 } 427 } 428 429 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 430 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based " 431 "on the received credential"); 432 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 433 if (ssid->eap.identity && 434 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN && 435 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR, 436 WSC_ID_REGISTRAR_LEN) == 0) 437 registrar = 1; 438 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 439 os_free(ssid->eap.identity); 440 ssid->eap.identity = NULL; 441 ssid->eap.identity_len = 0; 442 os_free(ssid->eap.phase1); 443 ssid->eap.phase1 = NULL; 444 os_free(ssid->eap.eap_methods); 445 ssid->eap.eap_methods = NULL; 446 if (!ssid->p2p_group) { 447 ssid->temporary = 0; 448 ssid->bssid_set = 0; 449 } 450 ssid->disabled_until.sec = 0; 451 ssid->disabled_until.usec = 0; 452 ssid->auth_failures = 0; 453 } else { 454 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the " 455 "received credential"); 456 ssid = wpa_config_add_network(wpa_s->conf); 457 if (ssid == NULL) 458 return -1; 459 if (wpa_s->current_ssid) { 460 /* 461 * Should the GO issue multiple credentials for some 462 * reason, each credential should be marked as a 463 * temporary P2P group similarly to the one that gets 464 * marked as such based on the pre-configured values 465 * used for the WPS network block. 466 */ 467 ssid->p2p_group = wpa_s->current_ssid->p2p_group; 468 ssid->temporary = wpa_s->current_ssid->temporary; 469 } 470 wpas_notify_network_added(wpa_s, ssid); 471 } 472 473 wpa_config_set_network_defaults(ssid); 474 ssid->wps_run = wpa_s->wps_run; 475 476 os_free(ssid->ssid); 477 ssid->ssid = os_malloc(cred->ssid_len); 478 if (ssid->ssid) { 479 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len); 480 ssid->ssid_len = cred->ssid_len; 481 } 482 483 switch (cred->encr_type) { 484 case WPS_ENCR_NONE: 485 break; 486 case WPS_ENCR_TKIP: 487 ssid->pairwise_cipher = WPA_CIPHER_TKIP; 488 break; 489 case WPS_ENCR_AES: 490 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 491 if (wpa_s->drv_capa_known && 492 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) { 493 ssid->pairwise_cipher |= WPA_CIPHER_GCMP; 494 ssid->group_cipher |= WPA_CIPHER_GCMP; 495 } 496 if (wpa_s->drv_capa_known && 497 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP_256)) { 498 ssid->pairwise_cipher |= WPA_CIPHER_GCMP_256; 499 ssid->group_cipher |= WPA_CIPHER_GCMP_256; 500 } 501 if (wpa_s->drv_capa_known && 502 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_CCMP_256)) { 503 ssid->pairwise_cipher |= WPA_CIPHER_CCMP_256; 504 ssid->group_cipher |= WPA_CIPHER_CCMP_256; 505 } 506 break; 507 } 508 509 switch (auth_type) { 510 case WPS_AUTH_OPEN: 511 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 512 ssid->key_mgmt = WPA_KEY_MGMT_NONE; 513 ssid->proto = 0; 514 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 515 if (registrar) { 516 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK 517 "id=%d - Credentials for an open " 518 "network disabled by default - use " 519 "'select_network %d' to enable", 520 ssid->id, ssid->id); 521 ssid->disabled = 1; 522 } 523 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 524 break; 525 case WPS_AUTH_WPAPSK: 526 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 527 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 528 ssid->proto = WPA_PROTO_WPA; 529 break; 530 case WPS_AUTH_WPA2PSK: 531 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 532 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 533 if (wpa_s->conf->wps_cred_add_sae && 534 cred->key_len != 2 * PMK_LEN) { 535 ssid->key_mgmt |= WPA_KEY_MGMT_SAE; 536 #ifdef CONFIG_IEEE80211W 537 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL; 538 #endif /* CONFIG_IEEE80211W */ 539 } 540 ssid->proto = WPA_PROTO_RSN; 541 break; 542 } 543 544 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 545 if (cred->key_len == 2 * PMK_LEN) { 546 if (hexstr2bin((const char *) cred->key, ssid->psk, 547 PMK_LEN)) { 548 wpa_printf(MSG_ERROR, "WPS: Invalid Network " 549 "Key"); 550 return -1; 551 } 552 ssid->psk_set = 1; 553 ssid->export_keys = 1; 554 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) { 555 os_free(ssid->passphrase); 556 ssid->passphrase = os_malloc(cred->key_len + 1); 557 if (ssid->passphrase == NULL) 558 return -1; 559 os_memcpy(ssid->passphrase, cred->key, cred->key_len); 560 ssid->passphrase[cred->key_len] = '\0'; 561 wpa_config_update_psk(ssid); 562 ssid->export_keys = 1; 563 } else { 564 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key " 565 "length %lu", 566 (unsigned long) cred->key_len); 567 return -1; 568 } 569 } 570 ssid->priority = wpa_s->conf->wps_priority; 571 572 wpas_wps_security_workaround(wpa_s, ssid, cred); 573 574 wpas_wps_remove_dup_network(wpa_s, ssid); 575 576 #ifndef CONFIG_NO_CONFIG_WRITE 577 if (wpa_s->conf->update_config && 578 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 579 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration"); 580 return -1; 581 } 582 #endif /* CONFIG_NO_CONFIG_WRITE */ 583 584 if (ssid->priority) 585 wpa_config_update_prio_list(wpa_s->conf); 586 587 /* 588 * Optimize the post-WPS scan based on the channel used during 589 * the provisioning in case EAP-Failure is not received. 590 */ 591 wpa_s->after_wps = 5; 592 wpa_s->wps_freq = wpa_s->assoc_freq; 593 594 return 0; 595 } 596 597 598 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s, 599 struct wps_event_m2d *m2d) 600 { 601 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D 602 "dev_password_id=%d config_error=%d", 603 m2d->dev_password_id, m2d->config_error); 604 wpas_notify_wps_event_m2d(wpa_s, m2d); 605 #ifdef CONFIG_P2P 606 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) { 607 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_M2D 608 "dev_password_id=%d config_error=%d", 609 m2d->dev_password_id, m2d->config_error); 610 } 611 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) { 612 /* 613 * Notify P2P from eloop timeout to avoid issues with the 614 * interface getting removed while processing a message. 615 */ 616 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s, 617 NULL); 618 } 619 #endif /* CONFIG_P2P */ 620 } 621 622 623 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx) 624 { 625 struct wpa_supplicant *wpa_s = eloop_ctx; 626 wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout"); 627 wpas_clear_wps(wpa_s); 628 } 629 630 631 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s, 632 struct wps_event_fail *fail) 633 { 634 if (fail->error_indication > 0 && 635 fail->error_indication < NUM_WPS_EI_VALUES) { 636 wpa_msg(wpa_s, MSG_INFO, 637 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", 638 fail->msg, fail->config_error, fail->error_indication, 639 wps_ei_str(fail->error_indication)); 640 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) 641 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL 642 "msg=%d config_error=%d reason=%d (%s)", 643 fail->msg, fail->config_error, 644 fail->error_indication, 645 wps_ei_str(fail->error_indication)); 646 } else { 647 wpa_msg(wpa_s, MSG_INFO, 648 WPS_EVENT_FAIL "msg=%d config_error=%d", 649 fail->msg, fail->config_error); 650 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) 651 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL 652 "msg=%d config_error=%d", 653 fail->msg, fail->config_error); 654 } 655 656 /* 657 * Need to allow WPS processing to complete, e.g., by sending WSC_NACK. 658 */ 659 wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network"); 660 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 661 eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL); 662 663 wpas_notify_wps_event_fail(wpa_s, fail); 664 wpas_p2p_wps_failed(wpa_s, fail); 665 } 666 667 668 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx); 669 670 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s) 671 { 672 struct wpa_ssid *ssid; 673 int changed = 0; 674 675 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 676 677 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 678 if (ssid->disabled_for_connect && ssid->disabled) { 679 ssid->disabled_for_connect = 0; 680 ssid->disabled = 0; 681 wpas_notify_network_enabled_changed(wpa_s, ssid); 682 changed++; 683 } 684 } 685 686 if (changed) { 687 #ifndef CONFIG_NO_CONFIG_WRITE 688 if (wpa_s->conf->update_config && 689 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 690 wpa_printf(MSG_DEBUG, "WPS: Failed to update " 691 "configuration"); 692 } 693 #endif /* CONFIG_NO_CONFIG_WRITE */ 694 } 695 } 696 697 698 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx) 699 { 700 struct wpa_supplicant *wpa_s = eloop_ctx; 701 /* Enable the networks disabled during wpas_wps_reassoc */ 702 wpas_wps_reenable_networks(wpa_s); 703 } 704 705 706 int wpas_wps_reenable_networks_pending(struct wpa_supplicant *wpa_s) 707 { 708 return eloop_is_timeout_registered(wpas_wps_reenable_networks_cb, 709 wpa_s, NULL); 710 } 711 712 713 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s) 714 { 715 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS); 716 wpa_s->wps_success = 1; 717 wpas_notify_wps_event_success(wpa_s); 718 if (wpa_s->current_ssid) 719 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1); 720 wpa_s->extra_blacklist_count = 0; 721 722 /* 723 * Enable the networks disabled during wpas_wps_reassoc after 10 724 * seconds. The 10 seconds timer is to allow the data connection to be 725 * formed before allowing other networks to be selected. 726 */ 727 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 728 NULL); 729 730 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0); 731 } 732 733 734 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s, 735 struct wps_event_er_ap *ap) 736 { 737 char uuid_str[100]; 738 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 739 740 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 741 if (ap->pri_dev_type) 742 wps_dev_type_bin2str(ap->pri_dev_type, dev_type, 743 sizeof(dev_type)); 744 else 745 dev_type[0] = '\0'; 746 747 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR 748 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|", 749 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state, 750 ap->friendly_name ? ap->friendly_name : "", 751 ap->manufacturer ? ap->manufacturer : "", 752 ap->model_description ? ap->model_description : "", 753 ap->model_name ? ap->model_name : "", 754 ap->manufacturer_url ? ap->manufacturer_url : "", 755 ap->model_url ? ap->model_url : ""); 756 } 757 758 759 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s, 760 struct wps_event_er_ap *ap) 761 { 762 char uuid_str[100]; 763 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 764 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str); 765 } 766 767 768 static void wpa_supplicant_wps_event_er_enrollee_add( 769 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 770 { 771 char uuid_str[100]; 772 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 773 774 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 775 if (enrollee->pri_dev_type) 776 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type, 777 sizeof(dev_type)); 778 else 779 dev_type[0] = '\0'; 780 781 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR 782 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s " 783 "|%s|%s|%s|%s|%s|", 784 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received, 785 enrollee->config_methods, enrollee->dev_passwd_id, dev_type, 786 enrollee->dev_name ? enrollee->dev_name : "", 787 enrollee->manufacturer ? enrollee->manufacturer : "", 788 enrollee->model_name ? enrollee->model_name : "", 789 enrollee->model_number ? enrollee->model_number : "", 790 enrollee->serial_number ? enrollee->serial_number : ""); 791 } 792 793 794 static void wpa_supplicant_wps_event_er_enrollee_remove( 795 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 796 { 797 char uuid_str[100]; 798 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 799 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR, 800 uuid_str, MAC2STR(enrollee->mac_addr)); 801 } 802 803 804 static void wpa_supplicant_wps_event_er_ap_settings( 805 struct wpa_supplicant *wpa_s, 806 struct wps_event_er_ap_settings *ap_settings) 807 { 808 char uuid_str[100]; 809 char key_str[65]; 810 const struct wps_credential *cred = ap_settings->cred; 811 812 key_str[0] = '\0'; 813 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 814 if (cred->key_len >= 8 && cred->key_len <= 64) { 815 os_memcpy(key_str, cred->key, cred->key_len); 816 key_str[cred->key_len] = '\0'; 817 } 818 } 819 820 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str)); 821 /* Use wpa_msg_ctrl to avoid showing the key in debug log */ 822 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS 823 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x " 824 "key=%s", 825 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len), 826 cred->auth_type, cred->encr_type, key_str); 827 } 828 829 830 static void wpa_supplicant_wps_event_er_set_sel_reg( 831 struct wpa_supplicant *wpa_s, 832 struct wps_event_er_set_selected_registrar *ev) 833 { 834 char uuid_str[100]; 835 836 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str)); 837 switch (ev->state) { 838 case WPS_ER_SET_SEL_REG_START: 839 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 840 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u " 841 "sel_reg_config_methods=0x%x", 842 uuid_str, ev->sel_reg, ev->dev_passwd_id, 843 ev->sel_reg_config_methods); 844 break; 845 case WPS_ER_SET_SEL_REG_DONE: 846 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 847 "uuid=%s state=DONE", uuid_str); 848 break; 849 case WPS_ER_SET_SEL_REG_FAILED: 850 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG 851 "uuid=%s state=FAILED", uuid_str); 852 break; 853 } 854 } 855 856 857 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, 858 union wps_event_data *data) 859 { 860 struct wpa_supplicant *wpa_s = ctx; 861 switch (event) { 862 case WPS_EV_M2D: 863 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d); 864 break; 865 case WPS_EV_FAIL: 866 wpa_supplicant_wps_event_fail(wpa_s, &data->fail); 867 break; 868 case WPS_EV_SUCCESS: 869 wpa_supplicant_wps_event_success(wpa_s); 870 break; 871 case WPS_EV_PWD_AUTH_FAIL: 872 #ifdef CONFIG_AP 873 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee) 874 wpa_supplicant_ap_pwd_auth_fail(wpa_s); 875 #endif /* CONFIG_AP */ 876 break; 877 case WPS_EV_PBC_OVERLAP: 878 break; 879 case WPS_EV_PBC_TIMEOUT: 880 break; 881 case WPS_EV_PBC_ACTIVE: 882 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE); 883 break; 884 case WPS_EV_PBC_DISABLE: 885 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE); 886 break; 887 case WPS_EV_ER_AP_ADD: 888 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap); 889 break; 890 case WPS_EV_ER_AP_REMOVE: 891 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap); 892 break; 893 case WPS_EV_ER_ENROLLEE_ADD: 894 wpa_supplicant_wps_event_er_enrollee_add(wpa_s, 895 &data->enrollee); 896 break; 897 case WPS_EV_ER_ENROLLEE_REMOVE: 898 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s, 899 &data->enrollee); 900 break; 901 case WPS_EV_ER_AP_SETTINGS: 902 wpa_supplicant_wps_event_er_ap_settings(wpa_s, 903 &data->ap_settings); 904 break; 905 case WPS_EV_ER_SET_SELECTED_REGISTRAR: 906 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s, 907 &data->set_sel_reg); 908 break; 909 case WPS_EV_AP_PIN_SUCCESS: 910 break; 911 } 912 } 913 914 915 static int wpa_supplicant_wps_rf_band(void *ctx) 916 { 917 struct wpa_supplicant *wpa_s = ctx; 918 919 if (!wpa_s->current_ssid || !wpa_s->assoc_freq) 920 return 0; 921 922 return (wpa_s->assoc_freq > 50000) ? WPS_RF_60GHZ : 923 (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ; 924 } 925 926 927 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid) 928 { 929 if (eap_is_wps_pbc_enrollee(&ssid->eap) || 930 eap_is_wps_pin_enrollee(&ssid->eap)) 931 return WPS_REQ_ENROLLEE; 932 else 933 return WPS_REQ_REGISTRAR; 934 } 935 936 937 static void wpas_clear_wps(struct wpa_supplicant *wpa_s) 938 { 939 int id; 940 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current; 941 942 wpa_s->after_wps = 0; 943 wpa_s->known_wps_freq = 0; 944 945 prev_current = wpa_s->current_ssid; 946 947 /* Enable the networks disabled during wpas_wps_reassoc */ 948 wpas_wps_reenable_networks(wpa_s); 949 950 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 951 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 952 953 /* Remove any existing WPS network from configuration */ 954 ssid = wpa_s->conf->ssid; 955 while (ssid) { 956 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { 957 if (ssid == wpa_s->current_ssid) { 958 wpa_s->own_disconnect_req = 1; 959 wpa_supplicant_deauthenticate( 960 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 961 } 962 id = ssid->id; 963 remove_ssid = ssid; 964 } else 965 id = -1; 966 ssid = ssid->next; 967 if (id >= 0) { 968 if (prev_current == remove_ssid) { 969 wpa_sm_set_config(wpa_s->wpa, NULL); 970 eapol_sm_notify_config(wpa_s->eapol, NULL, 971 NULL); 972 } 973 wpas_notify_network_removed(wpa_s, remove_ssid); 974 wpa_config_remove_network(wpa_s->conf, id); 975 } 976 } 977 978 wpas_wps_clear_ap_info(wpa_s); 979 } 980 981 982 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx) 983 { 984 struct wpa_supplicant *wpa_s = eloop_ctx; 985 union wps_event_data data; 986 987 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed " 988 "out"); 989 os_memset(&data, 0, sizeof(data)); 990 data.fail.config_error = WPS_CFG_MSG_TIMEOUT; 991 data.fail.error_indication = WPS_EI_NO_ERROR; 992 /* 993 * Call wpas_notify_wps_event_fail() directly instead of through 994 * wpa_supplicant_wps_event() which would end up registering unnecessary 995 * timeouts (those are only for the case where the failure happens 996 * during an EAP-WSC exchange). 997 */ 998 wpas_notify_wps_event_fail(wpa_s, &data.fail); 999 wpas_clear_wps(wpa_s); 1000 } 1001 1002 1003 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, 1004 int registrar, const u8 *dev_addr, 1005 const u8 *bssid) 1006 { 1007 struct wpa_ssid *ssid; 1008 1009 ssid = wpa_config_add_network(wpa_s->conf); 1010 if (ssid == NULL) 1011 return NULL; 1012 wpas_notify_network_added(wpa_s, ssid); 1013 wpa_config_set_network_defaults(ssid); 1014 ssid->temporary = 1; 1015 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 || 1016 wpa_config_set(ssid, "eap", "WSC", 0) < 0 || 1017 wpa_config_set(ssid, "identity", registrar ? 1018 "\"" WSC_ID_REGISTRAR "\"" : 1019 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) { 1020 wpas_notify_network_removed(wpa_s, ssid); 1021 wpa_config_remove_network(wpa_s->conf, ssid->id); 1022 return NULL; 1023 } 1024 1025 #ifdef CONFIG_P2P 1026 if (dev_addr) 1027 os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN); 1028 #endif /* CONFIG_P2P */ 1029 1030 if (bssid) { 1031 #ifndef CONFIG_P2P 1032 struct wpa_bss *bss; 1033 int count = 0; 1034 #endif /* CONFIG_P2P */ 1035 1036 os_memcpy(ssid->bssid, bssid, ETH_ALEN); 1037 ssid->bssid_set = 1; 1038 1039 /* 1040 * Note: With P2P, the SSID may change at the time the WPS 1041 * provisioning is started, so better not filter the AP based 1042 * on the current SSID in the scan results. 1043 */ 1044 #ifndef CONFIG_P2P 1045 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1046 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0) 1047 continue; 1048 1049 os_free(ssid->ssid); 1050 ssid->ssid = os_memdup(bss->ssid, bss->ssid_len); 1051 if (ssid->ssid == NULL) 1052 break; 1053 ssid->ssid_len = bss->ssid_len; 1054 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from " 1055 "scan results", 1056 ssid->ssid, ssid->ssid_len); 1057 count++; 1058 } 1059 1060 if (count > 1) { 1061 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found " 1062 "for the AP; use wildcard"); 1063 os_free(ssid->ssid); 1064 ssid->ssid = NULL; 1065 ssid->ssid_len = 0; 1066 } 1067 #endif /* CONFIG_P2P */ 1068 } 1069 1070 return ssid; 1071 } 1072 1073 1074 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s, 1075 struct wpa_ssid *selected) 1076 { 1077 struct wpa_ssid *ssid; 1078 1079 if (wpa_s->current_ssid) { 1080 wpa_s->own_disconnect_req = 1; 1081 wpa_supplicant_deauthenticate( 1082 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1083 } 1084 1085 /* Mark all other networks disabled and trigger reassociation */ 1086 ssid = wpa_s->conf->ssid; 1087 while (ssid) { 1088 int was_disabled = ssid->disabled; 1089 ssid->disabled_for_connect = 0; 1090 /* 1091 * In case the network object corresponds to a persistent group 1092 * then do not send out network disabled signal. In addition, 1093 * do not change disabled status of persistent network objects 1094 * from 2 to 1 should we connect to another network. 1095 */ 1096 if (was_disabled != 2) { 1097 ssid->disabled = ssid != selected; 1098 if (was_disabled != ssid->disabled) { 1099 if (ssid->disabled) 1100 ssid->disabled_for_connect = 1; 1101 wpas_notify_network_enabled_changed(wpa_s, 1102 ssid); 1103 } 1104 } 1105 ssid = ssid->next; 1106 } 1107 } 1108 1109 1110 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, 1111 struct wpa_ssid *selected, const u8 *bssid, 1112 int freq) 1113 { 1114 struct wpa_bss *bss; 1115 1116 wpa_s->wps_run++; 1117 if (wpa_s->wps_run == 0) 1118 wpa_s->wps_run++; 1119 wpa_s->after_wps = 0; 1120 wpa_s->known_wps_freq = 0; 1121 if (freq) { 1122 wpa_s->after_wps = 5; 1123 wpa_s->wps_freq = freq; 1124 } else if (bssid) { 1125 bss = wpa_bss_get_bssid_latest(wpa_s, bssid); 1126 if (bss && bss->freq > 0) { 1127 wpa_s->known_wps_freq = 1; 1128 wpa_s->wps_freq = bss->freq; 1129 } 1130 } 1131 1132 wpas_wps_temp_disable(wpa_s, selected); 1133 1134 wpa_s->disconnected = 0; 1135 wpa_s->reassociate = 1; 1136 wpa_s->scan_runs = 0; 1137 wpa_s->normal_scans = 0; 1138 wpa_s->wps_success = 0; 1139 wpa_s->blacklist_cleared = 0; 1140 1141 wpa_supplicant_cancel_sched_scan(wpa_s); 1142 wpa_supplicant_req_scan(wpa_s, 0, 0); 1143 } 1144 1145 1146 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 1147 int p2p_group, int multi_ap_backhaul_sta) 1148 { 1149 struct wpa_ssid *ssid; 1150 char phase1[32]; 1151 1152 #ifdef CONFIG_AP 1153 if (wpa_s->ap_iface) { 1154 wpa_printf(MSG_DEBUG, 1155 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1156 return -1; 1157 } 1158 #endif /* CONFIG_AP */ 1159 wpas_clear_wps(wpa_s); 1160 ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid); 1161 if (ssid == NULL) 1162 return -1; 1163 ssid->temporary = 1; 1164 ssid->p2p_group = p2p_group; 1165 /* 1166 * When starting a regular WPS process (not P2P group formation) 1167 * the registrar/final station can be either AP or PCP 1168 * so use a "don't care" value for the pbss flag. 1169 */ 1170 if (!p2p_group) 1171 ssid->pbss = 2; 1172 #ifdef CONFIG_P2P 1173 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1174 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1175 if (ssid->ssid) { 1176 ssid->ssid_len = wpa_s->go_params->ssid_len; 1177 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1178 ssid->ssid_len); 1179 if (wpa_s->go_params->freq > 56160) { 1180 /* P2P in 60 GHz uses PBSS */ 1181 ssid->pbss = 1; 1182 } 1183 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1184 "SSID", ssid->ssid, ssid->ssid_len); 1185 } 1186 } 1187 #endif /* CONFIG_P2P */ 1188 os_snprintf(phase1, sizeof(phase1), "pbc=1%s", 1189 multi_ap_backhaul_sta ? " multi_ap=1" : ""); 1190 if (wpa_config_set_quoted(ssid, "phase1", phase1) < 0) 1191 return -1; 1192 if (wpa_s->wps_fragment_size) 1193 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1194 if (multi_ap_backhaul_sta) 1195 ssid->multi_ap_backhaul_sta = 1; 1196 wpa_supplicant_wps_event(wpa_s, WPS_EV_PBC_ACTIVE, NULL); 1197 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1198 wpa_s, NULL); 1199 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1200 return 0; 1201 } 1202 1203 1204 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s, 1205 const u8 *dev_addr, const u8 *bssid, 1206 const char *pin, int p2p_group, u16 dev_pw_id, 1207 const u8 *peer_pubkey_hash, 1208 const u8 *ssid_val, size_t ssid_len, int freq) 1209 { 1210 struct wpa_ssid *ssid; 1211 char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN]; 1212 unsigned int rpin = 0; 1213 char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10]; 1214 1215 #ifdef CONFIG_AP 1216 if (wpa_s->ap_iface) { 1217 wpa_printf(MSG_DEBUG, 1218 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1219 return -1; 1220 } 1221 #endif /* CONFIG_AP */ 1222 wpas_clear_wps(wpa_s); 1223 if (bssid && is_zero_ether_addr(bssid)) 1224 bssid = NULL; 1225 ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid); 1226 if (ssid == NULL) { 1227 wpa_printf(MSG_DEBUG, "WPS: Could not add network"); 1228 return -1; 1229 } 1230 ssid->temporary = 1; 1231 ssid->p2p_group = p2p_group; 1232 /* 1233 * When starting a regular WPS process (not P2P group formation) 1234 * the registrar/final station can be either AP or PCP 1235 * so use a "don't care" value for the pbss flag. 1236 */ 1237 if (!p2p_group) 1238 ssid->pbss = 2; 1239 if (ssid_val) { 1240 ssid->ssid = os_malloc(ssid_len); 1241 if (ssid->ssid) { 1242 os_memcpy(ssid->ssid, ssid_val, ssid_len); 1243 ssid->ssid_len = ssid_len; 1244 } 1245 } 1246 if (peer_pubkey_hash) { 1247 os_memcpy(hash, " pkhash=", 8); 1248 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8, 1249 peer_pubkey_hash, 1250 WPS_OOB_PUBKEY_HASH_LEN); 1251 } else { 1252 hash[0] = '\0'; 1253 } 1254 #ifdef CONFIG_P2P 1255 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1256 os_free(ssid->ssid); 1257 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1258 if (ssid->ssid) { 1259 ssid->ssid_len = wpa_s->go_params->ssid_len; 1260 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1261 ssid->ssid_len); 1262 if (wpa_s->go_params->freq > 56160) { 1263 /* P2P in 60 GHz uses PBSS */ 1264 ssid->pbss = 1; 1265 } 1266 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1267 "SSID", ssid->ssid, ssid->ssid_len); 1268 } 1269 } 1270 #endif /* CONFIG_P2P */ 1271 if (pin) 1272 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"", 1273 pin, dev_pw_id, hash); 1274 else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) { 1275 os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"", 1276 dev_pw_id, hash); 1277 } else { 1278 if (wps_generate_pin(&rpin) < 0) { 1279 wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN"); 1280 return -1; 1281 } 1282 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"", 1283 rpin, dev_pw_id, hash); 1284 } 1285 if (wpa_config_set(ssid, "phase1", val, 0) < 0) { 1286 wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val); 1287 return -1; 1288 } 1289 if (wpa_s->wps_fragment_size) 1290 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1291 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1292 wpa_s, NULL); 1293 wpa_s->wps_ap_iter = 1; 1294 wpas_wps_reassoc(wpa_s, ssid, bssid, freq); 1295 return rpin; 1296 } 1297 1298 1299 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 1300 const char *pin, int p2p_group, u16 dev_pw_id) 1301 { 1302 os_get_reltime(&wpa_s->wps_pin_start_time); 1303 return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group, 1304 dev_pw_id, NULL, NULL, 0, 0); 1305 } 1306 1307 1308 void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s) 1309 { 1310 union wps_event_data data; 1311 1312 os_memset(&data, 0, sizeof(data)); 1313 data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 1314 data.fail.error_indication = WPS_EI_NO_ERROR; 1315 /* 1316 * Call wpas_notify_wps_event_fail() directly instead of through 1317 * wpa_supplicant_wps_event() which would end up registering unnecessary 1318 * timeouts (those are only for the case where the failure happens 1319 * during an EAP-WSC exchange). 1320 */ 1321 wpas_notify_wps_event_fail(wpa_s, &data.fail); 1322 } 1323 1324 /* Cancel the wps pbc/pin requests */ 1325 int wpas_wps_cancel(struct wpa_supplicant *wpa_s) 1326 { 1327 #ifdef CONFIG_AP 1328 if (wpa_s->ap_iface) { 1329 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode"); 1330 return wpa_supplicant_ap_wps_cancel(wpa_s); 1331 } 1332 #endif /* CONFIG_AP */ 1333 1334 if (wpa_s->wpa_state == WPA_SCANNING || 1335 wpa_s->wpa_state == WPA_DISCONNECTED) { 1336 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan"); 1337 wpa_supplicant_cancel_scan(wpa_s); 1338 wpas_clear_wps(wpa_s); 1339 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) { 1340 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - " 1341 "deauthenticate"); 1342 wpa_s->own_disconnect_req = 1; 1343 wpa_supplicant_deauthenticate(wpa_s, 1344 WLAN_REASON_DEAUTH_LEAVING); 1345 wpas_clear_wps(wpa_s); 1346 } else { 1347 wpas_wps_reenable_networks(wpa_s); 1348 wpas_wps_clear_ap_info(wpa_s); 1349 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) > 1350 0) 1351 wpas_clear_wps(wpa_s); 1352 } 1353 1354 wpa_s->after_wps = 0; 1355 1356 return 0; 1357 } 1358 1359 1360 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, 1361 const char *pin, struct wps_new_ap_settings *settings) 1362 { 1363 struct wpa_ssid *ssid; 1364 char val[200]; 1365 char *pos, *end; 1366 int res; 1367 1368 #ifdef CONFIG_AP 1369 if (wpa_s->ap_iface) { 1370 wpa_printf(MSG_DEBUG, 1371 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1372 return -1; 1373 } 1374 #endif /* CONFIG_AP */ 1375 if (!pin) 1376 return -1; 1377 wpas_clear_wps(wpa_s); 1378 ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid); 1379 if (ssid == NULL) 1380 return -1; 1381 ssid->temporary = 1; 1382 pos = val; 1383 end = pos + sizeof(val); 1384 res = os_snprintf(pos, end - pos, "\"pin=%s", pin); 1385 if (os_snprintf_error(end - pos, res)) 1386 return -1; 1387 pos += res; 1388 if (settings) { 1389 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s " 1390 "new_encr=%s new_key=%s", 1391 settings->ssid_hex, settings->auth, 1392 settings->encr, settings->key_hex); 1393 if (os_snprintf_error(end - pos, res)) 1394 return -1; 1395 pos += res; 1396 } 1397 res = os_snprintf(pos, end - pos, "\""); 1398 if (os_snprintf_error(end - pos, res)) 1399 return -1; 1400 if (wpa_config_set(ssid, "phase1", val, 0) < 0) 1401 return -1; 1402 if (wpa_s->wps_fragment_size) 1403 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1404 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1405 wpa_s, NULL); 1406 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1407 return 0; 1408 } 1409 1410 1411 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, 1412 const u8 *p2p_dev_addr, const u8 *psk, 1413 size_t psk_len) 1414 { 1415 if (is_zero_ether_addr(p2p_dev_addr)) { 1416 wpa_printf(MSG_DEBUG, 1417 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR, 1418 MAC2STR(mac_addr)); 1419 } else { 1420 wpa_printf(MSG_DEBUG, 1421 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR 1422 " P2P Device Addr " MACSTR, 1423 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); 1424 } 1425 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 1426 1427 /* TODO */ 1428 1429 return 0; 1430 } 1431 1432 1433 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 1434 const struct wps_device_data *dev) 1435 { 1436 char uuid[40], txt[400]; 1437 int len; 1438 char devtype[WPS_DEV_TYPE_BUFSIZE]; 1439 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 1440 return; 1441 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid); 1442 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR 1443 " [%s|%s|%s|%s|%s|%s]", 1444 uuid, MAC2STR(dev->mac_addr), dev->device_name, 1445 dev->manufacturer, dev->model_name, 1446 dev->model_number, dev->serial_number, 1447 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 1448 sizeof(devtype))); 1449 if (!os_snprintf_error(sizeof(txt), len)) 1450 wpa_printf(MSG_INFO, "%s", txt); 1451 } 1452 1453 1454 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id, 1455 u16 sel_reg_config_methods) 1456 { 1457 #ifdef CONFIG_WPS_ER 1458 struct wpa_supplicant *wpa_s = ctx; 1459 1460 if (wpa_s->wps_er == NULL) 1461 return; 1462 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d " 1463 "dev_password_id=%u sel_reg_config_methods=0x%x", 1464 sel_reg, dev_passwd_id, sel_reg_config_methods); 1465 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id, 1466 sel_reg_config_methods); 1467 #endif /* CONFIG_WPS_ER */ 1468 } 1469 1470 1471 static u16 wps_fix_config_methods(u16 config_methods) 1472 { 1473 if ((config_methods & 1474 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 1475 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 1476 wpa_printf(MSG_INFO, "WPS: Converting display to " 1477 "virtual_display for WPS 2.0 compliance"); 1478 config_methods |= WPS_CONFIG_VIRT_DISPLAY; 1479 } 1480 if ((config_methods & 1481 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 1482 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 1483 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 1484 "virtual_push_button for WPS 2.0 compliance"); 1485 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 1486 } 1487 1488 return config_methods; 1489 } 1490 1491 1492 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s, 1493 struct wps_context *wps) 1494 { 1495 char buf[50]; 1496 const char *src; 1497 1498 if (is_nil_uuid(wpa_s->conf->uuid)) { 1499 struct wpa_supplicant *first; 1500 first = wpa_s->global->ifaces; 1501 while (first && first->next) 1502 first = first->next; 1503 if (first && first != wpa_s) { 1504 if (wps != wpa_s->global->ifaces->wps) 1505 os_memcpy(wps->uuid, 1506 wpa_s->global->ifaces->wps->uuid, 1507 WPS_UUID_LEN); 1508 src = "from the first interface"; 1509 } else if (wpa_s->conf->auto_uuid == 1) { 1510 uuid_random(wps->uuid); 1511 src = "based on random data"; 1512 } else { 1513 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); 1514 src = "based on MAC address"; 1515 } 1516 } else { 1517 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 1518 src = "based on configuration"; 1519 } 1520 1521 uuid_bin2str(wps->uuid, buf, sizeof(buf)); 1522 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf); 1523 } 1524 1525 1526 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s, 1527 struct wps_context *wps) 1528 { 1529 wpabuf_free(wps->dev.vendor_ext_m1); 1530 wps->dev.vendor_ext_m1 = NULL; 1531 1532 if (wpa_s->conf->wps_vendor_ext_m1) { 1533 wps->dev.vendor_ext_m1 = 1534 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1); 1535 if (!wps->dev.vendor_ext_m1) { 1536 wpa_printf(MSG_ERROR, "WPS: Cannot " 1537 "allocate memory for vendor_ext_m1"); 1538 } 1539 } 1540 } 1541 1542 1543 int wpas_wps_init(struct wpa_supplicant *wpa_s) 1544 { 1545 struct wps_context *wps; 1546 struct wps_registrar_config rcfg; 1547 struct hostapd_hw_modes *modes; 1548 u16 m; 1549 1550 wps = os_zalloc(sizeof(*wps)); 1551 if (wps == NULL) 1552 return -1; 1553 1554 wps->cred_cb = wpa_supplicant_wps_cred; 1555 wps->event_cb = wpa_supplicant_wps_event; 1556 wps->rf_band_cb = wpa_supplicant_wps_rf_band; 1557 wps->cb_ctx = wpa_s; 1558 1559 wps->dev.device_name = wpa_s->conf->device_name; 1560 wps->dev.manufacturer = wpa_s->conf->manufacturer; 1561 wps->dev.model_name = wpa_s->conf->model_name; 1562 wps->dev.model_number = wpa_s->conf->model_number; 1563 wps->dev.serial_number = wpa_s->conf->serial_number; 1564 wps->config_methods = 1565 wps_config_methods_str2bin(wpa_s->conf->config_methods); 1566 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 1567 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 1568 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " 1569 "methods are not allowed at the same time"); 1570 os_free(wps); 1571 return -1; 1572 } 1573 wps->config_methods = wps_fix_config_methods(wps->config_methods); 1574 wps->dev.config_methods = wps->config_methods; 1575 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 1576 WPS_DEV_TYPE_LEN); 1577 1578 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 1579 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 1580 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); 1581 1582 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 1583 1584 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 1585 modes = wpa_s->hw.modes; 1586 if (modes) { 1587 for (m = 0; m < wpa_s->hw.num_modes; m++) { 1588 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B || 1589 modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1590 wps->dev.rf_bands |= WPS_RF_24GHZ; 1591 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A) 1592 wps->dev.rf_bands |= WPS_RF_50GHZ; 1593 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD) 1594 wps->dev.rf_bands |= WPS_RF_60GHZ; 1595 } 1596 } 1597 if (wps->dev.rf_bands == 0) { 1598 /* 1599 * Default to claiming support for both bands if the driver 1600 * does not provide support for fetching supported bands. 1601 */ 1602 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; 1603 } 1604 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); 1605 wpas_wps_set_uuid(wpa_s, wps); 1606 1607 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1608 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1609 1610 os_memset(&rcfg, 0, sizeof(rcfg)); 1611 rcfg.new_psk_cb = wpas_wps_new_psk_cb; 1612 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb; 1613 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb; 1614 rcfg.cb_ctx = wpa_s; 1615 1616 wps->registrar = wps_registrar_init(wps, &rcfg); 1617 if (wps->registrar == NULL) { 1618 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar"); 1619 os_free(wps); 1620 return -1; 1621 } 1622 1623 wpa_s->wps = wps; 1624 1625 return 0; 1626 } 1627 1628 1629 #ifdef CONFIG_WPS_ER 1630 static void wpas_wps_nfc_clear(struct wps_context *wps) 1631 { 1632 wps->ap_nfc_dev_pw_id = 0; 1633 wpabuf_free(wps->ap_nfc_dh_pubkey); 1634 wps->ap_nfc_dh_pubkey = NULL; 1635 wpabuf_free(wps->ap_nfc_dh_privkey); 1636 wps->ap_nfc_dh_privkey = NULL; 1637 wpabuf_free(wps->ap_nfc_dev_pw); 1638 wps->ap_nfc_dev_pw = NULL; 1639 } 1640 #endif /* CONFIG_WPS_ER */ 1641 1642 1643 void wpas_wps_deinit(struct wpa_supplicant *wpa_s) 1644 { 1645 wpas_wps_assoc_with_cred_cancel(wpa_s); 1646 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 1647 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 1648 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 1649 wpas_wps_clear_ap_info(wpa_s); 1650 1651 #ifdef CONFIG_P2P 1652 eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL); 1653 #endif /* CONFIG_P2P */ 1654 1655 if (wpa_s->wps == NULL) 1656 return; 1657 1658 #ifdef CONFIG_WPS_ER 1659 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1660 wpa_s->wps_er = NULL; 1661 wpas_wps_nfc_clear(wpa_s->wps); 1662 #endif /* CONFIG_WPS_ER */ 1663 1664 wps_registrar_deinit(wpa_s->wps->registrar); 1665 wpabuf_free(wpa_s->wps->dh_pubkey); 1666 wpabuf_free(wpa_s->wps->dh_privkey); 1667 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1); 1668 os_free(wpa_s->wps->network_key); 1669 os_free(wpa_s->wps); 1670 wpa_s->wps = NULL; 1671 } 1672 1673 1674 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, 1675 struct wpa_ssid *ssid, struct wpa_bss *bss) 1676 { 1677 struct wpabuf *wps_ie; 1678 1679 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) 1680 return -1; 1681 1682 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1683 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1684 if (!wps_ie) { 1685 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1686 return 0; 1687 } 1688 1689 if (!wps_is_selected_pbc_registrar(wps_ie)) { 1690 wpa_printf(MSG_DEBUG, " skip - WPS AP " 1691 "without active PBC Registrar"); 1692 wpabuf_free(wps_ie); 1693 return 0; 1694 } 1695 1696 /* TODO: overlap detection */ 1697 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1698 "(Active PBC)"); 1699 wpabuf_free(wps_ie); 1700 return 1; 1701 } 1702 1703 if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1704 if (!wps_ie) { 1705 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1706 return 0; 1707 } 1708 1709 /* 1710 * Start with WPS APs that advertise our address as an 1711 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and 1712 * allow any WPS AP after couple of scans since some APs do not 1713 * set Selected Registrar attribute properly when using 1714 * external Registrar. 1715 */ 1716 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { 1717 struct os_reltime age; 1718 1719 os_reltime_age(&wpa_s->wps_pin_start_time, &age); 1720 1721 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG || 1722 age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) { 1723 wpa_printf(MSG_DEBUG, 1724 " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)", 1725 wpa_s->scan_runs, (int) age.sec); 1726 wpabuf_free(wps_ie); 1727 return 0; 1728 } 1729 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1730 } else { 1731 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1732 "(Authorized MAC or Active PIN)"); 1733 } 1734 wpabuf_free(wps_ie); 1735 return 1; 1736 } 1737 1738 if (wps_ie) { 1739 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1740 wpabuf_free(wps_ie); 1741 return 1; 1742 } 1743 1744 return -1; 1745 } 1746 1747 1748 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, 1749 struct wpa_ssid *ssid, 1750 struct wpa_bss *bss) 1751 { 1752 struct wpabuf *wps_ie = NULL; 1753 int ret = 0; 1754 1755 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1756 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1757 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { 1758 /* allow wildcard SSID for WPS PBC */ 1759 ret = 1; 1760 } 1761 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1762 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1763 if (wps_ie && 1764 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || 1765 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { 1766 /* allow wildcard SSID for WPS PIN */ 1767 ret = 1; 1768 } 1769 } 1770 1771 if (!ret && ssid->bssid_set && 1772 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) { 1773 /* allow wildcard SSID due to hardcoded BSSID match */ 1774 ret = 1; 1775 } 1776 1777 #ifdef CONFIG_WPS_STRICT 1778 if (wps_ie) { 1779 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > 1780 0, bss->bssid) < 0) 1781 ret = 0; 1782 if (bss->beacon_ie_len) { 1783 struct wpabuf *bcn_wps; 1784 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon( 1785 bss, WPS_IE_VENDOR_TYPE); 1786 if (bcn_wps == NULL) { 1787 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " 1788 "missing from AP Beacon"); 1789 ret = 0; 1790 } else { 1791 if (wps_validate_beacon(wps_ie) < 0) 1792 ret = 0; 1793 wpabuf_free(bcn_wps); 1794 } 1795 } 1796 } 1797 #endif /* CONFIG_WPS_STRICT */ 1798 1799 wpabuf_free(wps_ie); 1800 1801 return ret; 1802 } 1803 1804 1805 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, 1806 struct wpa_bss *selected, struct wpa_ssid *ssid) 1807 { 1808 const u8 *sel_uuid; 1809 struct wpabuf *wps_ie; 1810 int ret = 0; 1811 size_t i; 1812 1813 if (!eap_is_wps_pbc_enrollee(&ssid->eap)) 1814 return 0; 1815 1816 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " 1817 "present in scan results; selected BSSID " MACSTR, 1818 MAC2STR(selected->bssid)); 1819 1820 /* Make sure that only one AP is in active PBC mode */ 1821 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); 1822 if (wps_ie) { 1823 sel_uuid = wps_get_uuid_e(wps_ie); 1824 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", 1825 sel_uuid, UUID_LEN); 1826 } else { 1827 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " 1828 "WPS IE?!"); 1829 sel_uuid = NULL; 1830 } 1831 1832 for (i = 0; i < wpa_s->num_wps_ap; i++) { 1833 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 1834 1835 if (!ap->pbc_active || 1836 os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0) 1837 continue; 1838 1839 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " 1840 MACSTR, MAC2STR(ap->bssid)); 1841 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", 1842 ap->uuid, UUID_LEN); 1843 if (sel_uuid == NULL || 1844 os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) { 1845 ret = 1; /* PBC overlap */ 1846 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " 1847 MACSTR " and " MACSTR, 1848 MAC2STR(selected->bssid), 1849 MAC2STR(ap->bssid)); 1850 break; 1851 } 1852 1853 /* TODO: verify that this is reasonable dual-band situation */ 1854 } 1855 1856 wpabuf_free(wps_ie); 1857 1858 return ret; 1859 } 1860 1861 1862 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) 1863 { 1864 struct wpa_bss *bss; 1865 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; 1866 1867 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) 1868 return; 1869 1870 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1871 struct wpabuf *ie; 1872 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1873 if (!ie) 1874 continue; 1875 if (wps_is_selected_pbc_registrar(ie)) 1876 pbc++; 1877 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) 1878 auth++; 1879 else if (wps_is_selected_pin_registrar(ie)) 1880 pin++; 1881 else 1882 wps++; 1883 wpabuf_free(ie); 1884 } 1885 1886 if (pbc) 1887 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); 1888 else if (auth) 1889 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); 1890 else if (pin) 1891 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); 1892 else if (wps) 1893 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); 1894 } 1895 1896 1897 int wpas_wps_searching(struct wpa_supplicant *wpa_s) 1898 { 1899 struct wpa_ssid *ssid; 1900 1901 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1902 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled) 1903 return 1; 1904 } 1905 1906 return 0; 1907 } 1908 1909 1910 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 1911 char *end) 1912 { 1913 struct wpabuf *wps_ie; 1914 int ret; 1915 1916 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA); 1917 if (wps_ie == NULL) 1918 return 0; 1919 1920 ret = wps_attr_text(wps_ie, buf, end); 1921 wpabuf_free(wps_ie); 1922 return ret; 1923 } 1924 1925 1926 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) 1927 { 1928 #ifdef CONFIG_WPS_ER 1929 if (wpa_s->wps_er) { 1930 wps_er_refresh(wpa_s->wps_er); 1931 return 0; 1932 } 1933 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); 1934 if (wpa_s->wps_er == NULL) 1935 return -1; 1936 return 0; 1937 #else /* CONFIG_WPS_ER */ 1938 return 0; 1939 #endif /* CONFIG_WPS_ER */ 1940 } 1941 1942 1943 void wpas_wps_er_stop(struct wpa_supplicant *wpa_s) 1944 { 1945 #ifdef CONFIG_WPS_ER 1946 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1947 wpa_s->wps_er = NULL; 1948 #endif /* CONFIG_WPS_ER */ 1949 } 1950 1951 1952 #ifdef CONFIG_WPS_ER 1953 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, 1954 const char *uuid, const char *pin) 1955 { 1956 u8 u[UUID_LEN]; 1957 const u8 *use_uuid = NULL; 1958 u8 addr_buf[ETH_ALEN]; 1959 1960 if (os_strcmp(uuid, "any") == 0) { 1961 } else if (uuid_str2bin(uuid, u) == 0) { 1962 use_uuid = u; 1963 } else if (hwaddr_aton(uuid, addr_buf) == 0) { 1964 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf); 1965 if (use_uuid == NULL) 1966 return -1; 1967 } else 1968 return -1; 1969 return wps_registrar_add_pin(wpa_s->wps->registrar, addr, 1970 use_uuid, 1971 (const u8 *) pin, os_strlen(pin), 300); 1972 } 1973 1974 1975 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) 1976 { 1977 u8 u[UUID_LEN], *use_uuid = NULL; 1978 u8 addr[ETH_ALEN], *use_addr = NULL; 1979 1980 if (uuid_str2bin(uuid, u) == 0) 1981 use_uuid = u; 1982 else if (hwaddr_aton(uuid, addr) == 0) 1983 use_addr = addr; 1984 else 1985 return -1; 1986 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr); 1987 } 1988 1989 1990 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, 1991 const char *pin) 1992 { 1993 u8 u[UUID_LEN], *use_uuid = NULL; 1994 u8 addr[ETH_ALEN], *use_addr = NULL; 1995 1996 if (uuid_str2bin(uuid, u) == 0) 1997 use_uuid = u; 1998 else if (hwaddr_aton(uuid, addr) == 0) 1999 use_addr = addr; 2000 else 2001 return -1; 2002 2003 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin, 2004 os_strlen(pin)); 2005 } 2006 2007 2008 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid, 2009 struct wps_credential *cred) 2010 { 2011 os_memset(cred, 0, sizeof(*cred)); 2012 if (ssid->ssid_len > SSID_MAX_LEN) 2013 return -1; 2014 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len); 2015 cred->ssid_len = ssid->ssid_len; 2016 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 2017 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ? 2018 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; 2019 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 2020 cred->encr_type = WPS_ENCR_AES; 2021 else 2022 cred->encr_type = WPS_ENCR_TKIP; 2023 if (ssid->passphrase) { 2024 cred->key_len = os_strlen(ssid->passphrase); 2025 if (cred->key_len >= 64) 2026 return -1; 2027 os_memcpy(cred->key, ssid->passphrase, cred->key_len); 2028 } else if (ssid->psk_set) { 2029 cred->key_len = 32; 2030 os_memcpy(cred->key, ssid->psk, 32); 2031 } else 2032 return -1; 2033 } else { 2034 cred->auth_type = WPS_AUTH_OPEN; 2035 cred->encr_type = WPS_ENCR_NONE; 2036 } 2037 2038 return 0; 2039 } 2040 2041 2042 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, 2043 int id) 2044 { 2045 u8 u[UUID_LEN], *use_uuid = NULL; 2046 u8 addr[ETH_ALEN], *use_addr = NULL; 2047 struct wpa_ssid *ssid; 2048 struct wps_credential cred; 2049 int ret; 2050 2051 if (uuid_str2bin(uuid, u) == 0) 2052 use_uuid = u; 2053 else if (hwaddr_aton(uuid, addr) == 0) 2054 use_addr = addr; 2055 else 2056 return -1; 2057 ssid = wpa_config_get_network(wpa_s->conf, id); 2058 if (ssid == NULL || ssid->ssid == NULL) 2059 return -1; 2060 2061 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2062 return -1; 2063 ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred); 2064 os_memset(&cred, 0, sizeof(cred)); 2065 return ret; 2066 } 2067 2068 2069 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, 2070 const char *pin, struct wps_new_ap_settings *settings) 2071 { 2072 u8 u[UUID_LEN], *use_uuid = NULL; 2073 u8 addr[ETH_ALEN], *use_addr = NULL; 2074 struct wps_credential cred; 2075 size_t len; 2076 2077 if (uuid_str2bin(uuid, u) == 0) 2078 use_uuid = u; 2079 else if (hwaddr_aton(uuid, addr) == 0) 2080 use_addr = addr; 2081 else 2082 return -1; 2083 if (settings->ssid_hex == NULL || settings->auth == NULL || 2084 settings->encr == NULL || settings->key_hex == NULL) 2085 return -1; 2086 2087 os_memset(&cred, 0, sizeof(cred)); 2088 len = os_strlen(settings->ssid_hex); 2089 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 2090 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) 2091 return -1; 2092 cred.ssid_len = len / 2; 2093 2094 len = os_strlen(settings->key_hex); 2095 if ((len & 1) || len > 2 * sizeof(cred.key) || 2096 hexstr2bin(settings->key_hex, cred.key, len / 2)) 2097 return -1; 2098 cred.key_len = len / 2; 2099 2100 if (os_strcmp(settings->auth, "OPEN") == 0) 2101 cred.auth_type = WPS_AUTH_OPEN; 2102 else if (os_strcmp(settings->auth, "WPAPSK") == 0) 2103 cred.auth_type = WPS_AUTH_WPAPSK; 2104 else if (os_strcmp(settings->auth, "WPA2PSK") == 0) 2105 cred.auth_type = WPS_AUTH_WPA2PSK; 2106 else 2107 return -1; 2108 2109 if (os_strcmp(settings->encr, "NONE") == 0) 2110 cred.encr_type = WPS_ENCR_NONE; 2111 #ifdef CONFIG_TESTING_OPTIONS 2112 else if (os_strcmp(settings->encr, "WEP") == 0) 2113 cred.encr_type = WPS_ENCR_WEP; 2114 #endif /* CONFIG_TESTING_OPTIONS */ 2115 else if (os_strcmp(settings->encr, "TKIP") == 0) 2116 cred.encr_type = WPS_ENCR_TKIP; 2117 else if (os_strcmp(settings->encr, "CCMP") == 0) 2118 cred.encr_type = WPS_ENCR_AES; 2119 else 2120 return -1; 2121 2122 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr, 2123 (const u8 *) pin, os_strlen(pin), &cred); 2124 } 2125 2126 2127 #ifdef CONFIG_WPS_NFC 2128 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s, 2129 int ndef, const char *uuid) 2130 { 2131 struct wpabuf *ret; 2132 u8 u[UUID_LEN], *use_uuid = NULL; 2133 u8 addr[ETH_ALEN], *use_addr = NULL; 2134 2135 if (!wpa_s->wps_er) 2136 return NULL; 2137 2138 if (uuid_str2bin(uuid, u) == 0) 2139 use_uuid = u; 2140 else if (hwaddr_aton(uuid, addr) == 0) 2141 use_addr = addr; 2142 else 2143 return NULL; 2144 2145 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); 2146 if (ndef && ret) { 2147 struct wpabuf *tmp; 2148 tmp = ndef_build_wifi(ret); 2149 wpabuf_free(ret); 2150 if (tmp == NULL) 2151 return NULL; 2152 ret = tmp; 2153 } 2154 2155 return ret; 2156 } 2157 #endif /* CONFIG_WPS_NFC */ 2158 2159 2160 static int callbacks_pending = 0; 2161 2162 static void wpas_wps_terminate_cb(void *ctx) 2163 { 2164 wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); 2165 if (--callbacks_pending <= 0) 2166 eloop_terminate(); 2167 } 2168 #endif /* CONFIG_WPS_ER */ 2169 2170 2171 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) 2172 { 2173 #ifdef CONFIG_WPS_ER 2174 if (wpa_s->wps_er) { 2175 callbacks_pending++; 2176 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); 2177 wpa_s->wps_er = NULL; 2178 return 1; 2179 } 2180 #endif /* CONFIG_WPS_ER */ 2181 return 0; 2182 } 2183 2184 2185 void wpas_wps_update_config(struct wpa_supplicant *wpa_s) 2186 { 2187 struct wps_context *wps = wpa_s->wps; 2188 2189 if (wps == NULL) 2190 return; 2191 2192 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { 2193 wps->config_methods = wps_config_methods_str2bin( 2194 wpa_s->conf->config_methods); 2195 if ((wps->config_methods & 2196 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 2197 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 2198 wpa_printf(MSG_ERROR, "WPS: Both Label and Display " 2199 "config methods are not allowed at the " 2200 "same time"); 2201 wps->config_methods &= ~WPS_CONFIG_LABEL; 2202 } 2203 } 2204 wps->config_methods = wps_fix_config_methods(wps->config_methods); 2205 wps->dev.config_methods = wps->config_methods; 2206 2207 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) 2208 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 2209 WPS_DEV_TYPE_LEN); 2210 2211 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { 2212 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 2213 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 2214 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); 2215 } 2216 2217 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) 2218 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 2219 2220 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) 2221 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 2222 2223 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) 2224 wpas_wps_set_uuid(wpa_s, wps); 2225 2226 if (wpa_s->conf->changed_parameters & 2227 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { 2228 /* Update pointers to make sure they refer current values */ 2229 wps->dev.device_name = wpa_s->conf->device_name; 2230 wps->dev.manufacturer = wpa_s->conf->manufacturer; 2231 wps->dev.model_name = wpa_s->conf->model_name; 2232 wps->dev.model_number = wpa_s->conf->model_number; 2233 wps->dev.serial_number = wpa_s->conf->serial_number; 2234 } 2235 } 2236 2237 2238 #ifdef CONFIG_WPS_NFC 2239 2240 #ifdef CONFIG_WPS_ER 2241 struct wpabuf * 2242 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef, 2243 struct wpa_ssid *ssid) 2244 { 2245 struct wpabuf *ret; 2246 struct wps_credential cred; 2247 2248 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2249 return NULL; 2250 2251 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred); 2252 2253 if (ndef && ret) { 2254 struct wpabuf *tmp; 2255 tmp = ndef_build_wifi(ret); 2256 wpabuf_free(ret); 2257 if (tmp == NULL) 2258 return NULL; 2259 ret = tmp; 2260 } 2261 2262 return ret; 2263 } 2264 #endif /* CONFIG_WPS_ER */ 2265 2266 2267 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 2268 int ndef, const char *id_str) 2269 { 2270 #ifdef CONFIG_WPS_ER 2271 if (id_str) { 2272 int id; 2273 char *end = NULL; 2274 struct wpa_ssid *ssid; 2275 2276 id = strtol(id_str, &end, 10); 2277 if (end && *end) 2278 return NULL; 2279 2280 ssid = wpa_config_get_network(wpa_s->conf, id); 2281 if (ssid == NULL) 2282 return NULL; 2283 return wpas_wps_network_config_token(wpa_s, ndef, ssid); 2284 } 2285 #endif /* CONFIG_WPS_ER */ 2286 #ifdef CONFIG_AP 2287 if (wpa_s->ap_iface) 2288 return wpas_ap_wps_nfc_config_token(wpa_s, ndef); 2289 #endif /* CONFIG_AP */ 2290 return NULL; 2291 } 2292 2293 2294 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef) 2295 { 2296 if (wpa_s->conf->wps_nfc_pw_from_config) { 2297 return wps_nfc_token_build(ndef, 2298 wpa_s->conf->wps_nfc_dev_pw_id, 2299 wpa_s->conf->wps_nfc_dh_pubkey, 2300 wpa_s->conf->wps_nfc_dev_pw); 2301 } 2302 2303 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id, 2304 &wpa_s->conf->wps_nfc_dh_pubkey, 2305 &wpa_s->conf->wps_nfc_dh_privkey, 2306 &wpa_s->conf->wps_nfc_dev_pw); 2307 } 2308 2309 2310 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr, 2311 const u8 *bssid, 2312 const struct wpabuf *dev_pw, u16 dev_pw_id, 2313 int p2p_group, const u8 *peer_pubkey_hash, 2314 const u8 *ssid, size_t ssid_len, int freq) 2315 { 2316 struct wps_context *wps = wpa_s->wps; 2317 char pw[32 * 2 + 1]; 2318 2319 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2320 dev_pw = wpa_s->conf->wps_nfc_dev_pw; 2321 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; 2322 } 2323 2324 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || 2325 wpa_s->conf->wps_nfc_dh_privkey == NULL) { 2326 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - " 2327 "cannot start NFC-triggered connection"); 2328 return -1; 2329 } 2330 2331 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2332 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - " 2333 "cannot start NFC-triggered connection", dev_pw_id); 2334 return -1; 2335 } 2336 2337 dh5_free(wps->dh_ctx); 2338 wpabuf_free(wps->dh_pubkey); 2339 wpabuf_free(wps->dh_privkey); 2340 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2341 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2342 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { 2343 wps->dh_ctx = NULL; 2344 wpabuf_free(wps->dh_pubkey); 2345 wps->dh_pubkey = NULL; 2346 wpabuf_free(wps->dh_privkey); 2347 wps->dh_privkey = NULL; 2348 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key"); 2349 return -1; 2350 } 2351 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); 2352 if (wps->dh_ctx == NULL) { 2353 wpabuf_free(wps->dh_pubkey); 2354 wps->dh_pubkey = NULL; 2355 wpabuf_free(wps->dh_privkey); 2356 wps->dh_privkey = NULL; 2357 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context"); 2358 return -1; 2359 } 2360 2361 if (dev_pw) { 2362 wpa_snprintf_hex_uppercase(pw, sizeof(pw), 2363 wpabuf_head(dev_pw), 2364 wpabuf_len(dev_pw)); 2365 } 2366 return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid, 2367 dev_pw ? pw : NULL, 2368 p2p_group, dev_pw_id, peer_pubkey_hash, 2369 ssid, ssid_len, freq); 2370 } 2371 2372 2373 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s, 2374 struct wps_parse_attr *attr) 2375 { 2376 /* 2377 * Disable existing networks temporarily to allow the newly learned 2378 * credential to be preferred. Enable the temporarily disabled networks 2379 * after 10 seconds. 2380 */ 2381 wpas_wps_temp_disable(wpa_s, NULL); 2382 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 2383 NULL); 2384 2385 if (wps_oob_use_cred(wpa_s->wps, attr) < 0) 2386 return -1; 2387 2388 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2389 return 0; 2390 2391 if (attr->ap_channel) { 2392 u16 chan = WPA_GET_BE16(attr->ap_channel); 2393 int freq = 0; 2394 2395 if (chan >= 1 && chan <= 13) 2396 freq = 2407 + 5 * chan; 2397 else if (chan == 14) 2398 freq = 2484; 2399 else if (chan >= 30) 2400 freq = 5000 + 5 * chan; 2401 2402 if (freq) { 2403 wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz", 2404 chan, freq); 2405 wpa_s->after_wps = 5; 2406 wpa_s->wps_freq = freq; 2407 } 2408 } 2409 2410 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network " 2411 "based on the received credential added"); 2412 wpa_s->normal_scans = 0; 2413 wpa_supplicant_reinit_autoscan(wpa_s); 2414 wpa_s->disconnected = 0; 2415 wpa_s->reassociate = 1; 2416 2417 wpa_supplicant_cancel_sched_scan(wpa_s); 2418 wpa_supplicant_req_scan(wpa_s, 0, 0); 2419 2420 return 0; 2421 } 2422 2423 2424 #ifdef CONFIG_WPS_ER 2425 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s, 2426 struct wps_parse_attr *attr) 2427 { 2428 return wps_registrar_add_nfc_password_token( 2429 wpa_s->wps->registrar, attr->oob_dev_password, 2430 attr->oob_dev_password_len); 2431 } 2432 #endif /* CONFIG_WPS_ER */ 2433 2434 2435 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s, 2436 const struct wpabuf *wps) 2437 { 2438 struct wps_parse_attr attr; 2439 2440 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2441 2442 if (wps_parse_msg(wps, &attr)) { 2443 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2444 return -1; 2445 } 2446 2447 if (attr.num_cred) 2448 return wpas_wps_use_cred(wpa_s, &attr); 2449 2450 #ifdef CONFIG_WPS_ER 2451 if (attr.oob_dev_password) 2452 return wpas_wps_add_nfc_password_token(wpa_s, &attr); 2453 #endif /* CONFIG_WPS_ER */ 2454 2455 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2456 return -1; 2457 } 2458 2459 2460 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s, 2461 const struct wpabuf *data, int forced_freq) 2462 { 2463 const struct wpabuf *wps = data; 2464 struct wpabuf *tmp = NULL; 2465 int ret; 2466 2467 if (wpabuf_len(data) < 4) 2468 return -1; 2469 2470 if (*wpabuf_head_u8(data) != 0x10) { 2471 /* Assume this contains full NDEF record */ 2472 tmp = ndef_parse_wifi(data); 2473 if (tmp == NULL) { 2474 #ifdef CONFIG_P2P 2475 tmp = ndef_parse_p2p(data); 2476 if (tmp) { 2477 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp, 2478 forced_freq); 2479 wpabuf_free(tmp); 2480 return ret; 2481 } 2482 #endif /* CONFIG_P2P */ 2483 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2484 return -1; 2485 } 2486 wps = tmp; 2487 } 2488 2489 ret = wpas_wps_nfc_tag_process(wpa_s, wps); 2490 wpabuf_free(tmp); 2491 return ret; 2492 } 2493 2494 2495 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, 2496 int ndef) 2497 { 2498 struct wpabuf *ret; 2499 2500 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && 2501 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2502 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2503 return NULL; 2504 2505 ret = wps_build_nfc_handover_req(wpa_s->wps, 2506 wpa_s->conf->wps_nfc_dh_pubkey); 2507 2508 if (ndef && ret) { 2509 struct wpabuf *tmp; 2510 tmp = ndef_build_wifi(ret); 2511 wpabuf_free(ret); 2512 if (tmp == NULL) 2513 return NULL; 2514 ret = tmp; 2515 } 2516 2517 return ret; 2518 } 2519 2520 2521 #ifdef CONFIG_WPS_NFC 2522 2523 static struct wpabuf * 2524 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef, 2525 const char *uuid) 2526 { 2527 #ifdef CONFIG_WPS_ER 2528 struct wpabuf *ret; 2529 u8 u[UUID_LEN], *use_uuid = NULL; 2530 u8 addr[ETH_ALEN], *use_addr = NULL; 2531 struct wps_context *wps = wpa_s->wps; 2532 2533 if (wps == NULL) 2534 return NULL; 2535 2536 if (uuid == NULL) 2537 return NULL; 2538 if (uuid_str2bin(uuid, u) == 0) 2539 use_uuid = u; 2540 else if (hwaddr_aton(uuid, addr) == 0) 2541 use_addr = addr; 2542 else 2543 return NULL; 2544 2545 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) { 2546 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2547 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2548 return NULL; 2549 } 2550 2551 wpas_wps_nfc_clear(wps); 2552 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; 2553 wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2554 wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2555 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { 2556 wpas_wps_nfc_clear(wps); 2557 return NULL; 2558 } 2559 2560 ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid, 2561 use_addr, wpa_s->conf->wps_nfc_dh_pubkey); 2562 if (ndef && ret) { 2563 struct wpabuf *tmp; 2564 tmp = ndef_build_wifi(ret); 2565 wpabuf_free(ret); 2566 if (tmp == NULL) 2567 return NULL; 2568 ret = tmp; 2569 } 2570 2571 return ret; 2572 #else /* CONFIG_WPS_ER */ 2573 return NULL; 2574 #endif /* CONFIG_WPS_ER */ 2575 } 2576 #endif /* CONFIG_WPS_NFC */ 2577 2578 2579 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 2580 int ndef, int cr, const char *uuid) 2581 { 2582 struct wpabuf *ret; 2583 if (!cr) 2584 return NULL; 2585 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef); 2586 if (ret) 2587 return ret; 2588 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid); 2589 } 2590 2591 2592 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s, 2593 const struct wpabuf *data) 2594 { 2595 struct wpabuf *wps; 2596 int ret = -1; 2597 u16 wsc_len; 2598 const u8 *pos; 2599 struct wpabuf msg; 2600 struct wps_parse_attr attr; 2601 u16 dev_pw_id; 2602 const u8 *bssid = NULL; 2603 int freq = 0; 2604 2605 wps = ndef_parse_wifi(data); 2606 if (wps == NULL) 2607 return -1; 2608 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2609 "payload from NFC connection handover"); 2610 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2611 if (wpabuf_len(wps) < 2) { 2612 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select " 2613 "Message"); 2614 goto out; 2615 } 2616 pos = wpabuf_head(wps); 2617 wsc_len = WPA_GET_BE16(pos); 2618 if (wsc_len > wpabuf_len(wps) - 2) { 2619 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2620 "in Wi-Fi Handover Select Message", wsc_len); 2621 goto out; 2622 } 2623 pos += 2; 2624 2625 wpa_hexdump(MSG_DEBUG, 2626 "WPS: WSC attributes in Wi-Fi Handover Select Message", 2627 pos, wsc_len); 2628 if (wsc_len < wpabuf_len(wps) - 2) { 2629 wpa_hexdump(MSG_DEBUG, 2630 "WPS: Ignore extra data after WSC attributes", 2631 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2632 } 2633 2634 wpabuf_set(&msg, pos, wsc_len); 2635 ret = wps_parse_msg(&msg, &attr); 2636 if (ret < 0) { 2637 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2638 "Wi-Fi Handover Select Message"); 2639 goto out; 2640 } 2641 2642 if (attr.oob_dev_password == NULL || 2643 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2644 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2645 "included in Wi-Fi Handover Select Message"); 2646 ret = -1; 2647 goto out; 2648 } 2649 2650 if (attr.ssid == NULL) { 2651 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover " 2652 "Select Message"); 2653 ret = -1; 2654 goto out; 2655 } 2656 2657 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len); 2658 2659 if (attr.mac_addr) { 2660 bssid = attr.mac_addr; 2661 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR, 2662 MAC2STR(bssid)); 2663 } 2664 2665 if (attr.rf_bands) 2666 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands); 2667 2668 if (attr.ap_channel) { 2669 u16 chan = WPA_GET_BE16(attr.ap_channel); 2670 2671 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan); 2672 2673 if (chan >= 1 && chan <= 13 && 2674 (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ)) 2675 freq = 2407 + 5 * chan; 2676 else if (chan == 14 && 2677 (attr.rf_bands == NULL || 2678 *attr.rf_bands & WPS_RF_24GHZ)) 2679 freq = 2484; 2680 else if (chan >= 30 && 2681 (attr.rf_bands == NULL || 2682 *attr.rf_bands & WPS_RF_50GHZ)) 2683 freq = 5000 + 5 * chan; 2684 else if (chan >= 1 && chan <= 4 && 2685 (attr.rf_bands == NULL || 2686 *attr.rf_bands & WPS_RF_60GHZ)) 2687 freq = 56160 + 2160 * chan; 2688 2689 if (freq) { 2690 wpa_printf(MSG_DEBUG, 2691 "WPS: AP indicated channel %u -> %u MHz", 2692 chan, freq); 2693 } 2694 } 2695 2696 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2697 attr.oob_dev_password, attr.oob_dev_password_len); 2698 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2699 WPS_OOB_PUBKEY_HASH_LEN); 2700 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2701 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2702 "%u in Wi-Fi Handover Select Message", dev_pw_id); 2703 ret = -1; 2704 goto out; 2705 } 2706 wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash", 2707 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2708 2709 ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0, 2710 attr.oob_dev_password, 2711 attr.ssid, attr.ssid_len, freq); 2712 2713 out: 2714 wpabuf_free(wps); 2715 return ret; 2716 } 2717 2718 2719 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2720 const struct wpabuf *req, 2721 const struct wpabuf *sel) 2722 { 2723 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported"); 2724 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req); 2725 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel); 2726 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel); 2727 } 2728 2729 2730 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2731 const struct wpabuf *req, 2732 const struct wpabuf *sel) 2733 { 2734 struct wpabuf *wps; 2735 int ret = -1; 2736 u16 wsc_len; 2737 const u8 *pos; 2738 struct wpabuf msg; 2739 struct wps_parse_attr attr; 2740 u16 dev_pw_id; 2741 2742 /* 2743 * Enrollee/station is always initiator of the NFC connection handover, 2744 * so use the request message here to find Enrollee public key hash. 2745 */ 2746 wps = ndef_parse_wifi(req); 2747 if (wps == NULL) 2748 return -1; 2749 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2750 "payload from NFC connection handover"); 2751 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2752 if (wpabuf_len(wps) < 2) { 2753 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " 2754 "Message"); 2755 goto out; 2756 } 2757 pos = wpabuf_head(wps); 2758 wsc_len = WPA_GET_BE16(pos); 2759 if (wsc_len > wpabuf_len(wps) - 2) { 2760 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2761 "in rt Wi-Fi Handover Request Message", wsc_len); 2762 goto out; 2763 } 2764 pos += 2; 2765 2766 wpa_hexdump(MSG_DEBUG, 2767 "WPS: WSC attributes in Wi-Fi Handover Request Message", 2768 pos, wsc_len); 2769 if (wsc_len < wpabuf_len(wps) - 2) { 2770 wpa_hexdump(MSG_DEBUG, 2771 "WPS: Ignore extra data after WSC attributes", 2772 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2773 } 2774 2775 wpabuf_set(&msg, pos, wsc_len); 2776 ret = wps_parse_msg(&msg, &attr); 2777 if (ret < 0) { 2778 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2779 "Wi-Fi Handover Request Message"); 2780 goto out; 2781 } 2782 2783 if (attr.oob_dev_password == NULL || 2784 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2785 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2786 "included in Wi-Fi Handover Request Message"); 2787 ret = -1; 2788 goto out; 2789 } 2790 2791 if (attr.uuid_e == NULL) { 2792 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " 2793 "Handover Request Message"); 2794 ret = -1; 2795 goto out; 2796 } 2797 2798 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); 2799 2800 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2801 attr.oob_dev_password, attr.oob_dev_password_len); 2802 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2803 WPS_OOB_PUBKEY_HASH_LEN); 2804 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2805 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2806 "%u in Wi-Fi Handover Request Message", dev_pw_id); 2807 ret = -1; 2808 goto out; 2809 } 2810 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", 2811 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2812 2813 ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar, 2814 attr.oob_dev_password, 2815 DEV_PW_NFC_CONNECTION_HANDOVER, 2816 NULL, 0, 1); 2817 2818 out: 2819 wpabuf_free(wps); 2820 return ret; 2821 } 2822 2823 #endif /* CONFIG_WPS_NFC */ 2824 2825 2826 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s) 2827 { 2828 size_t i; 2829 struct os_reltime now; 2830 2831 if (wpa_debug_level > MSG_DEBUG) 2832 return; 2833 2834 if (wpa_s->wps_ap == NULL) 2835 return; 2836 2837 os_get_reltime(&now); 2838 2839 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2840 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2841 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid); 2842 2843 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d " 2844 "tries=%d last_attempt=%d sec ago blacklist=%d", 2845 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries, 2846 ap->last_attempt.sec > 0 ? 2847 (int) now.sec - (int) ap->last_attempt.sec : -1, 2848 e ? e->count : 0); 2849 } 2850 } 2851 2852 2853 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s, 2854 const u8 *bssid) 2855 { 2856 size_t i; 2857 2858 if (wpa_s->wps_ap == NULL) 2859 return NULL; 2860 2861 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2862 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2863 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0) 2864 return ap; 2865 } 2866 2867 return NULL; 2868 } 2869 2870 2871 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s, 2872 struct wpa_scan_res *res) 2873 { 2874 struct wpabuf *wps; 2875 enum wps_ap_info_type type; 2876 struct wps_ap_info *ap; 2877 int r, pbc_active; 2878 const u8 *uuid; 2879 2880 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL) 2881 return; 2882 2883 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); 2884 if (wps == NULL) 2885 return; 2886 2887 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1); 2888 if (r == 2) 2889 type = WPS_AP_SEL_REG_OUR; 2890 else if (r == 1) 2891 type = WPS_AP_SEL_REG; 2892 else 2893 type = WPS_AP_NOT_SEL_REG; 2894 2895 uuid = wps_get_uuid_e(wps); 2896 pbc_active = wps_is_selected_pbc_registrar(wps); 2897 2898 ap = wpas_wps_get_ap_info(wpa_s, res->bssid); 2899 if (ap) { 2900 if (ap->type != type) { 2901 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR 2902 " changed type %d -> %d", 2903 MAC2STR(res->bssid), ap->type, type); 2904 ap->type = type; 2905 if (type != WPS_AP_NOT_SEL_REG) 2906 wpa_blacklist_del(wpa_s, ap->bssid); 2907 } 2908 ap->pbc_active = pbc_active; 2909 if (uuid) 2910 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2911 goto out; 2912 } 2913 2914 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1, 2915 sizeof(struct wps_ap_info)); 2916 if (ap == NULL) 2917 goto out; 2918 2919 wpa_s->wps_ap = ap; 2920 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap]; 2921 wpa_s->num_wps_ap++; 2922 2923 os_memset(ap, 0, sizeof(*ap)); 2924 os_memcpy(ap->bssid, res->bssid, ETH_ALEN); 2925 ap->type = type; 2926 ap->pbc_active = pbc_active; 2927 if (uuid) 2928 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2929 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added", 2930 MAC2STR(ap->bssid), ap->type); 2931 2932 out: 2933 wpabuf_free(wps); 2934 } 2935 2936 2937 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s, 2938 struct wpa_scan_results *scan_res) 2939 { 2940 size_t i; 2941 2942 for (i = 0; i < scan_res->num; i++) 2943 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]); 2944 2945 wpas_wps_dump_ap_info(wpa_s); 2946 } 2947 2948 2949 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid) 2950 { 2951 struct wps_ap_info *ap; 2952 2953 wpa_s->after_wps = 0; 2954 2955 if (!wpa_s->wps_ap_iter) 2956 return; 2957 ap = wpas_wps_get_ap_info(wpa_s, bssid); 2958 if (ap == NULL) 2959 return; 2960 ap->tries++; 2961 os_get_reltime(&ap->last_attempt); 2962 } 2963
