1 /* 2 * hostapd / WPS integration 3 * Copyright (c) 2008-2010, 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 "utils/includes.h" 10 11 #include "utils/common.h" 12 #include "utils/eloop.h" 13 #include "utils/uuid.h" 14 #include "crypto/dh_groups.h" 15 #include "common/wpa_ctrl.h" 16 #include "common/ieee802_11_defs.h" 17 #include "common/ieee802_11_common.h" 18 #include "eapol_auth/eapol_auth_sm.h" 19 #include "eapol_auth/eapol_auth_sm_i.h" 20 #include "wps/wps.h" 21 #include "wps/wps_defs.h" 22 #include "wps/wps_dev_attr.h" 23 #include "hostapd.h" 24 #include "ap_config.h" 25 #include "ap_drv_ops.h" 26 #include "beacon.h" 27 #include "sta_info.h" 28 #include "wps_hostapd.h" 29 30 31 #ifdef CONFIG_WPS_UPNP 32 #include "wps/wps_upnp.h" 33 static int hostapd_wps_upnp_init(struct hostapd_data *hapd, 34 struct wps_context *wps); 35 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd); 36 #endif /* CONFIG_WPS_UPNP */ 37 38 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da, 39 const u8 *bssid, 40 const u8 *ie, size_t ie_len); 41 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx); 42 43 44 struct wps_for_each_data { 45 int (*func)(struct hostapd_data *h, void *ctx); 46 void *ctx; 47 }; 48 49 50 static int wps_for_each(struct hostapd_iface *iface, void *ctx) 51 { 52 struct wps_for_each_data *data = ctx; 53 size_t j; 54 55 if (iface == NULL) 56 return 0; 57 for (j = 0; j < iface->num_bss; j++) { 58 struct hostapd_data *hapd = iface->bss[j]; 59 int ret = data->func(hapd, data->ctx); 60 if (ret) 61 return ret; 62 } 63 64 return 0; 65 } 66 67 68 static int hostapd_wps_for_each(struct hostapd_data *hapd, 69 int (*func)(struct hostapd_data *h, void *ctx), 70 void *ctx) 71 { 72 struct hostapd_iface *iface = hapd->iface; 73 struct wps_for_each_data data; 74 data.func = func; 75 data.ctx = ctx; 76 if (iface->for_each_interface == NULL) 77 return wps_for_each(iface, &data); 78 return iface->for_each_interface(iface->interfaces, wps_for_each, 79 &data); 80 } 81 82 83 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk, 84 size_t psk_len) 85 { 86 struct hostapd_data *hapd = ctx; 87 struct hostapd_wpa_psk *p; 88 struct hostapd_ssid *ssid = &hapd->conf->ssid; 89 90 wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA " 91 MACSTR, MAC2STR(mac_addr)); 92 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 93 94 if (psk_len != PMK_LEN) { 95 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu", 96 (unsigned long) psk_len); 97 return -1; 98 } 99 100 /* Add the new PSK to runtime PSK list */ 101 p = os_zalloc(sizeof(*p)); 102 if (p == NULL) 103 return -1; 104 os_memcpy(p->addr, mac_addr, ETH_ALEN); 105 os_memcpy(p->psk, psk, PMK_LEN); 106 107 p->next = ssid->wpa_psk; 108 ssid->wpa_psk = p; 109 110 if (ssid->wpa_psk_file) { 111 FILE *f; 112 char hex[PMK_LEN * 2 + 1]; 113 /* Add the new PSK to PSK list file */ 114 f = fopen(ssid->wpa_psk_file, "a"); 115 if (f == NULL) { 116 wpa_printf(MSG_DEBUG, "Failed to add the PSK to " 117 "'%s'", ssid->wpa_psk_file); 118 return -1; 119 } 120 121 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len); 122 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex); 123 fclose(f); 124 } 125 126 return 0; 127 } 128 129 130 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie, 131 struct wpabuf *probe_resp_ie) 132 { 133 struct hostapd_data *hapd = ctx; 134 wpabuf_free(hapd->wps_beacon_ie); 135 hapd->wps_beacon_ie = beacon_ie; 136 wpabuf_free(hapd->wps_probe_resp_ie); 137 hapd->wps_probe_resp_ie = probe_resp_ie; 138 if (hapd->beacon_set_done) 139 ieee802_11_set_beacon(hapd); 140 return hostapd_set_ap_wps_ie(hapd); 141 } 142 143 144 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 145 const struct wps_device_data *dev) 146 { 147 struct hostapd_data *hapd = ctx; 148 char uuid[40], txt[400]; 149 int len; 150 char devtype[WPS_DEV_TYPE_BUFSIZE]; 151 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 152 return; 153 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid); 154 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED 155 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]", 156 uuid, MAC2STR(dev->mac_addr), dev->device_name, 157 dev->manufacturer, dev->model_name, 158 dev->model_number, dev->serial_number, 159 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 160 sizeof(devtype))); 161 if (len > 0 && len < (int) sizeof(txt)) 162 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt); 163 164 if (hapd->conf->wps_pin_requests) { 165 FILE *f; 166 struct os_time t; 167 f = fopen(hapd->conf->wps_pin_requests, "a"); 168 if (f == NULL) 169 return; 170 os_get_time(&t); 171 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s" 172 "\t%s\n", 173 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name, 174 dev->manufacturer, dev->model_name, dev->model_number, 175 dev->serial_number, 176 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 177 sizeof(devtype))); 178 fclose(f); 179 } 180 } 181 182 183 struct wps_stop_reg_data { 184 struct hostapd_data *current_hapd; 185 const u8 *uuid_e; 186 }; 187 188 static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx) 189 { 190 struct wps_stop_reg_data *data = ctx; 191 if (hapd != data->current_hapd && hapd->wps != NULL) 192 wps_registrar_complete(hapd->wps->registrar, data->uuid_e); 193 return 0; 194 } 195 196 197 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 198 const u8 *uuid_e) 199 { 200 struct hostapd_data *hapd = ctx; 201 char uuid[40]; 202 struct wps_stop_reg_data data; 203 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 204 return; 205 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s", 206 MAC2STR(mac_addr), uuid); 207 if (hapd->wps_reg_success_cb) 208 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx, 209 mac_addr, uuid_e); 210 data.current_hapd = hapd; 211 data.uuid_e = uuid_e; 212 hostapd_wps_for_each(hapd, wps_stop_registrar, &data); 213 } 214 215 216 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr, 217 const u8 *uuid_e, 218 const u8 *pri_dev_type, 219 u16 config_methods, 220 u16 dev_password_id, u8 request_type, 221 const char *dev_name) 222 { 223 struct hostapd_data *hapd = ctx; 224 char uuid[40]; 225 char devtype[WPS_DEV_TYPE_BUFSIZE]; 226 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 227 return; 228 if (dev_name == NULL) 229 dev_name = ""; 230 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR 231 " %s %s 0x%x %u %u [%s]", 232 MAC2STR(addr), uuid, 233 wps_dev_type_bin2str(pri_dev_type, devtype, 234 sizeof(devtype)), 235 config_methods, dev_password_id, request_type, dev_name); 236 } 237 238 239 static int str_starts(const char *str, const char *start) 240 { 241 return os_strncmp(str, start, os_strlen(start)) == 0; 242 } 243 244 245 static void wps_reload_config(void *eloop_data, void *user_ctx) 246 { 247 struct hostapd_iface *iface = eloop_data; 248 249 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data"); 250 if (iface->reload_config(iface) < 0) { 251 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated " 252 "configuration"); 253 } 254 } 255 256 257 static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr, 258 size_t attr_len) 259 { 260 size_t blen = attr_len * 2 + 1; 261 char *buf = os_malloc(blen); 262 if (buf) { 263 wpa_snprintf_hex(buf, blen, attr, attr_len); 264 wpa_msg(hapd->msg_ctx, MSG_INFO, 265 WPS_EVENT_NEW_AP_SETTINGS "%s", buf); 266 os_free(buf); 267 } 268 } 269 270 271 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx) 272 { 273 const struct wps_credential *cred = ctx; 274 FILE *oconf, *nconf; 275 size_t len, i; 276 char *tmp_fname; 277 char buf[1024]; 278 int multi_bss; 279 int wpa; 280 281 if (hapd->wps == NULL) 282 return 0; 283 284 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", 285 cred->cred_attr, cred->cred_attr_len); 286 287 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings"); 288 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); 289 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", 290 cred->auth_type); 291 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); 292 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); 293 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 294 cred->key, cred->key_len); 295 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, 296 MAC2STR(cred->mac_addr)); 297 298 if ((hapd->conf->wps_cred_processing == 1 || 299 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) { 300 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len); 301 } else if (hapd->conf->wps_cred_processing == 1 || 302 hapd->conf->wps_cred_processing == 2) { 303 struct wpabuf *attr; 304 attr = wpabuf_alloc(200); 305 if (attr && wps_build_credential_wrap(attr, cred) == 0) 306 hapd_new_ap_event(hapd, wpabuf_head_u8(attr), 307 wpabuf_len(attr)); 308 wpabuf_free(attr); 309 } else 310 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS); 311 312 if (hapd->conf->wps_cred_processing == 1) 313 return 0; 314 315 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len); 316 hapd->wps->ssid_len = cred->ssid_len; 317 hapd->wps->encr_types = cred->encr_type; 318 hapd->wps->auth_types = cred->auth_type; 319 if (cred->key_len == 0) { 320 os_free(hapd->wps->network_key); 321 hapd->wps->network_key = NULL; 322 hapd->wps->network_key_len = 0; 323 } else { 324 if (hapd->wps->network_key == NULL || 325 hapd->wps->network_key_len < cred->key_len) { 326 hapd->wps->network_key_len = 0; 327 os_free(hapd->wps->network_key); 328 hapd->wps->network_key = os_malloc(cred->key_len); 329 if (hapd->wps->network_key == NULL) 330 return -1; 331 } 332 hapd->wps->network_key_len = cred->key_len; 333 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len); 334 } 335 hapd->wps->wps_state = WPS_STATE_CONFIGURED; 336 337 len = os_strlen(hapd->iface->config_fname) + 5; 338 tmp_fname = os_malloc(len); 339 if (tmp_fname == NULL) 340 return -1; 341 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname); 342 343 oconf = fopen(hapd->iface->config_fname, "r"); 344 if (oconf == NULL) { 345 wpa_printf(MSG_WARNING, "WPS: Could not open current " 346 "configuration file"); 347 os_free(tmp_fname); 348 return -1; 349 } 350 351 nconf = fopen(tmp_fname, "w"); 352 if (nconf == NULL) { 353 wpa_printf(MSG_WARNING, "WPS: Could not write updated " 354 "configuration file"); 355 os_free(tmp_fname); 356 fclose(oconf); 357 return -1; 358 } 359 360 fprintf(nconf, "# WPS configuration - START\n"); 361 362 fprintf(nconf, "wps_state=2\n"); 363 364 fprintf(nconf, "ssid="); 365 for (i = 0; i < cred->ssid_len; i++) 366 fputc(cred->ssid[i], nconf); 367 fprintf(nconf, "\n"); 368 369 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) && 370 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))) 371 wpa = 3; 372 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) 373 wpa = 2; 374 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)) 375 wpa = 1; 376 else 377 wpa = 0; 378 379 if (wpa) { 380 char *prefix; 381 fprintf(nconf, "wpa=%d\n", wpa); 382 383 fprintf(nconf, "wpa_key_mgmt="); 384 prefix = ""; 385 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) { 386 fprintf(nconf, "WPA-EAP"); 387 prefix = " "; 388 } 389 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) 390 fprintf(nconf, "%sWPA-PSK", prefix); 391 fprintf(nconf, "\n"); 392 393 fprintf(nconf, "wpa_pairwise="); 394 prefix = ""; 395 if (cred->encr_type & WPS_ENCR_AES) { 396 fprintf(nconf, "CCMP"); 397 prefix = " "; 398 } 399 if (cred->encr_type & WPS_ENCR_TKIP) { 400 fprintf(nconf, "%sTKIP", prefix); 401 } 402 fprintf(nconf, "\n"); 403 404 if (cred->key_len >= 8 && cred->key_len < 64) { 405 fprintf(nconf, "wpa_passphrase="); 406 for (i = 0; i < cred->key_len; i++) 407 fputc(cred->key[i], nconf); 408 fprintf(nconf, "\n"); 409 } else if (cred->key_len == 64) { 410 fprintf(nconf, "wpa_psk="); 411 for (i = 0; i < cred->key_len; i++) 412 fputc(cred->key[i], nconf); 413 fprintf(nconf, "\n"); 414 } else { 415 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu " 416 "for WPA/WPA2", 417 (unsigned long) cred->key_len); 418 } 419 420 fprintf(nconf, "auth_algs=1\n"); 421 } else { 422 if ((cred->auth_type & WPS_AUTH_OPEN) && 423 (cred->auth_type & WPS_AUTH_SHARED)) 424 fprintf(nconf, "auth_algs=3\n"); 425 else if (cred->auth_type & WPS_AUTH_SHARED) 426 fprintf(nconf, "auth_algs=2\n"); 427 else 428 fprintf(nconf, "auth_algs=1\n"); 429 430 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) { 431 int key_idx = cred->key_idx; 432 if (key_idx) 433 key_idx--; 434 fprintf(nconf, "wep_default_key=%d\n", key_idx); 435 fprintf(nconf, "wep_key%d=", key_idx); 436 if (cred->key_len == 10 || cred->key_len == 26) { 437 /* WEP key as a hex string */ 438 for (i = 0; i < cred->key_len; i++) 439 fputc(cred->key[i], nconf); 440 } else { 441 /* Raw WEP key; convert to hex */ 442 for (i = 0; i < cred->key_len; i++) 443 fprintf(nconf, "%02x", cred->key[i]); 444 } 445 fprintf(nconf, "\n"); 446 } 447 } 448 449 fprintf(nconf, "# WPS configuration - END\n"); 450 451 multi_bss = 0; 452 while (fgets(buf, sizeof(buf), oconf)) { 453 if (os_strncmp(buf, "bss=", 4) == 0) 454 multi_bss = 1; 455 if (!multi_bss && 456 (str_starts(buf, "ssid=") || 457 str_starts(buf, "auth_algs=") || 458 str_starts(buf, "wep_default_key=") || 459 str_starts(buf, "wep_key") || 460 str_starts(buf, "wps_state=") || 461 str_starts(buf, "wpa=") || 462 str_starts(buf, "wpa_psk=") || 463 str_starts(buf, "wpa_pairwise=") || 464 str_starts(buf, "rsn_pairwise=") || 465 str_starts(buf, "wpa_key_mgmt=") || 466 str_starts(buf, "wpa_passphrase="))) { 467 fprintf(nconf, "#WPS# %s", buf); 468 } else 469 fprintf(nconf, "%s", buf); 470 } 471 472 fclose(nconf); 473 fclose(oconf); 474 475 if (rename(tmp_fname, hapd->iface->config_fname) < 0) { 476 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated " 477 "configuration file: %s", strerror(errno)); 478 os_free(tmp_fname); 479 return -1; 480 } 481 482 os_free(tmp_fname); 483 484 /* Schedule configuration reload after short period of time to allow 485 * EAP-WSC to be finished. 486 */ 487 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface, 488 NULL); 489 490 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated"); 491 492 return 0; 493 } 494 495 496 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred) 497 { 498 struct hostapd_data *hapd = ctx; 499 return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred); 500 } 501 502 503 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx) 504 { 505 struct hostapd_data *hapd = eloop_data; 506 507 if (hapd->conf->ap_setup_locked) 508 return; 509 if (hapd->ap_pin_failures_consecutive >= 10) 510 return; 511 512 wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN"); 513 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED); 514 hapd->wps->ap_setup_locked = 0; 515 wps_registrar_update_ie(hapd->wps->registrar); 516 } 517 518 519 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx) 520 { 521 struct wps_event_pwd_auth_fail *data = ctx; 522 523 if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL) 524 return 0; 525 526 /* 527 * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup 528 * for some time if this happens multiple times to slow down brute 529 * force attacks. 530 */ 531 hapd->ap_pin_failures++; 532 hapd->ap_pin_failures_consecutive++; 533 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u " 534 "(%u consecutive)", 535 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive); 536 if (hapd->ap_pin_failures < 3) 537 return 0; 538 539 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED); 540 hapd->wps->ap_setup_locked = 1; 541 542 wps_registrar_update_ie(hapd->wps->registrar); 543 544 if (!hapd->conf->ap_setup_locked && 545 hapd->ap_pin_failures_consecutive >= 10) { 546 /* 547 * In indefinite lockdown - disable automatic AP PIN 548 * reenablement. 549 */ 550 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 551 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely"); 552 } else if (!hapd->conf->ap_setup_locked) { 553 if (hapd->ap_pin_lockout_time == 0) 554 hapd->ap_pin_lockout_time = 60; 555 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 && 556 (hapd->ap_pin_failures % 3) == 0) 557 hapd->ap_pin_lockout_time *= 2; 558 559 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds", 560 hapd->ap_pin_lockout_time); 561 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 562 eloop_register_timeout(hapd->ap_pin_lockout_time, 0, 563 hostapd_wps_reenable_ap_pin, hapd, 564 NULL); 565 } 566 567 return 0; 568 } 569 570 571 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd, 572 struct wps_event_pwd_auth_fail *data) 573 { 574 hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data); 575 } 576 577 578 static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx) 579 { 580 if (hapd->conf->ap_pin == NULL || hapd->wps == NULL) 581 return 0; 582 583 if (hapd->ap_pin_failures_consecutive == 0) 584 return 0; 585 586 wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter " 587 "- total validation failures %u (%u consecutive)", 588 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive); 589 hapd->ap_pin_failures_consecutive = 0; 590 591 return 0; 592 } 593 594 595 static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd) 596 { 597 hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL); 598 } 599 600 601 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = { 602 "No Error", /* WPS_EI_NO_ERROR */ 603 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */ 604 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */ 605 }; 606 607 static void hostapd_wps_event_fail(struct hostapd_data *hapd, 608 struct wps_event_fail *fail) 609 { 610 if (fail->error_indication > 0 && 611 fail->error_indication < NUM_WPS_EI_VALUES) { 612 wpa_msg(hapd->msg_ctx, MSG_INFO, 613 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", 614 fail->msg, fail->config_error, fail->error_indication, 615 wps_event_fail_reason[fail->error_indication]); 616 } else { 617 wpa_msg(hapd->msg_ctx, MSG_INFO, 618 WPS_EVENT_FAIL "msg=%d config_error=%d", 619 fail->msg, fail->config_error); 620 } 621 } 622 623 624 static void hostapd_wps_event_cb(void *ctx, enum wps_event event, 625 union wps_event_data *data) 626 { 627 struct hostapd_data *hapd = ctx; 628 629 switch (event) { 630 case WPS_EV_M2D: 631 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D); 632 break; 633 case WPS_EV_FAIL: 634 hostapd_wps_event_fail(hapd, &data->fail); 635 break; 636 case WPS_EV_SUCCESS: 637 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS); 638 break; 639 case WPS_EV_PWD_AUTH_FAIL: 640 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail); 641 break; 642 case WPS_EV_PBC_OVERLAP: 643 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP); 644 break; 645 case WPS_EV_PBC_TIMEOUT: 646 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT); 647 break; 648 case WPS_EV_ER_AP_ADD: 649 break; 650 case WPS_EV_ER_AP_REMOVE: 651 break; 652 case WPS_EV_ER_ENROLLEE_ADD: 653 break; 654 case WPS_EV_ER_ENROLLEE_REMOVE: 655 break; 656 case WPS_EV_ER_AP_SETTINGS: 657 break; 658 case WPS_EV_ER_SET_SELECTED_REGISTRAR: 659 break; 660 case WPS_EV_AP_PIN_SUCCESS: 661 hostapd_wps_ap_pin_success(hapd); 662 break; 663 } 664 if (hapd->wps_event_cb) 665 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data); 666 } 667 668 669 static void hostapd_wps_clear_ies(struct hostapd_data *hapd) 670 { 671 wpabuf_free(hapd->wps_beacon_ie); 672 hapd->wps_beacon_ie = NULL; 673 674 wpabuf_free(hapd->wps_probe_resp_ie); 675 hapd->wps_probe_resp_ie = NULL; 676 677 hostapd_set_ap_wps_ie(hapd); 678 } 679 680 681 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx) 682 { 683 const u8 **uuid = ctx; 684 size_t j; 685 686 if (iface == NULL) 687 return 0; 688 for (j = 0; j < iface->num_bss; j++) { 689 struct hostapd_data *hapd = iface->bss[j]; 690 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) { 691 *uuid = hapd->wps->uuid; 692 return 1; 693 } 694 } 695 696 return 0; 697 } 698 699 700 static const u8 * get_own_uuid(struct hostapd_iface *iface) 701 { 702 const u8 *uuid; 703 if (iface->for_each_interface == NULL) 704 return NULL; 705 uuid = NULL; 706 iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid); 707 return uuid; 708 } 709 710 711 static int count_interface_cb(struct hostapd_iface *iface, void *ctx) 712 { 713 int *count= ctx; 714 (*count)++; 715 return 0; 716 } 717 718 719 static int interface_count(struct hostapd_iface *iface) 720 { 721 int count = 0; 722 if (iface->for_each_interface == NULL) 723 return 0; 724 iface->for_each_interface(iface->interfaces, count_interface_cb, 725 &count); 726 return count; 727 } 728 729 730 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd, 731 struct wps_context *wps) 732 { 733 int i; 734 735 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) { 736 wpabuf_free(wps->dev.vendor_ext[i]); 737 wps->dev.vendor_ext[i] = NULL; 738 739 if (hapd->conf->wps_vendor_ext[i] == NULL) 740 continue; 741 742 wps->dev.vendor_ext[i] = 743 wpabuf_dup(hapd->conf->wps_vendor_ext[i]); 744 if (wps->dev.vendor_ext[i] == NULL) { 745 while (--i >= 0) 746 wpabuf_free(wps->dev.vendor_ext[i]); 747 return -1; 748 } 749 } 750 751 return 0; 752 } 753 754 755 int hostapd_init_wps(struct hostapd_data *hapd, 756 struct hostapd_bss_config *conf) 757 { 758 struct wps_context *wps; 759 struct wps_registrar_config cfg; 760 761 if (conf->wps_state == 0) { 762 hostapd_wps_clear_ies(hapd); 763 return 0; 764 } 765 766 wps = os_zalloc(sizeof(*wps)); 767 if (wps == NULL) 768 return -1; 769 770 wps->cred_cb = hostapd_wps_cred_cb; 771 wps->event_cb = hostapd_wps_event_cb; 772 wps->cb_ctx = hapd; 773 774 os_memset(&cfg, 0, sizeof(cfg)); 775 wps->wps_state = hapd->conf->wps_state; 776 wps->ap_setup_locked = hapd->conf->ap_setup_locked; 777 if (is_nil_uuid(hapd->conf->uuid)) { 778 const u8 *uuid; 779 uuid = get_own_uuid(hapd->iface); 780 if (uuid) { 781 os_memcpy(wps->uuid, uuid, UUID_LEN); 782 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another " 783 "interface", wps->uuid, UUID_LEN); 784 } else { 785 uuid_gen_mac_addr(hapd->own_addr, wps->uuid); 786 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC " 787 "address", wps->uuid, UUID_LEN); 788 } 789 } else { 790 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN); 791 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID", 792 wps->uuid, UUID_LEN); 793 } 794 wps->ssid_len = hapd->conf->ssid.ssid_len; 795 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len); 796 wps->ap = 1; 797 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN); 798 wps->dev.device_name = hapd->conf->device_name ? 799 os_strdup(hapd->conf->device_name) : NULL; 800 wps->dev.manufacturer = hapd->conf->manufacturer ? 801 os_strdup(hapd->conf->manufacturer) : NULL; 802 wps->dev.model_name = hapd->conf->model_name ? 803 os_strdup(hapd->conf->model_name) : NULL; 804 wps->dev.model_number = hapd->conf->model_number ? 805 os_strdup(hapd->conf->model_number) : NULL; 806 wps->dev.serial_number = hapd->conf->serial_number ? 807 os_strdup(hapd->conf->serial_number) : NULL; 808 wps->config_methods = 809 wps_config_methods_str2bin(hapd->conf->config_methods); 810 #ifdef CONFIG_WPS2 811 if ((wps->config_methods & 812 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 813 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 814 wpa_printf(MSG_INFO, "WPS: Converting display to " 815 "virtual_display for WPS 2.0 compliance"); 816 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY; 817 } 818 if ((wps->config_methods & 819 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 820 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 821 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 822 "virtual_push_button for WPS 2.0 compliance"); 823 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 824 } 825 #endif /* CONFIG_WPS2 */ 826 os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type, 827 WPS_DEV_TYPE_LEN); 828 829 if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) { 830 os_free(wps); 831 return -1; 832 } 833 834 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version); 835 836 if (conf->wps_rf_bands) { 837 wps->dev.rf_bands = conf->wps_rf_bands; 838 } else { 839 wps->dev.rf_bands = 840 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ? 841 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */ 842 } 843 844 if (conf->wpa & WPA_PROTO_RSN) { 845 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 846 wps->auth_types |= WPS_AUTH_WPA2PSK; 847 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 848 wps->auth_types |= WPS_AUTH_WPA2; 849 850 if (conf->rsn_pairwise & WPA_CIPHER_CCMP) 851 wps->encr_types |= WPS_ENCR_AES; 852 if (conf->rsn_pairwise & WPA_CIPHER_TKIP) 853 wps->encr_types |= WPS_ENCR_TKIP; 854 } 855 856 if (conf->wpa & WPA_PROTO_WPA) { 857 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 858 wps->auth_types |= WPS_AUTH_WPAPSK; 859 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 860 wps->auth_types |= WPS_AUTH_WPA; 861 862 if (conf->wpa_pairwise & WPA_CIPHER_CCMP) 863 wps->encr_types |= WPS_ENCR_AES; 864 if (conf->wpa_pairwise & WPA_CIPHER_TKIP) 865 wps->encr_types |= WPS_ENCR_TKIP; 866 } 867 868 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) { 869 wps->encr_types |= WPS_ENCR_NONE; 870 wps->auth_types |= WPS_AUTH_OPEN; 871 } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) { 872 wps->encr_types |= WPS_ENCR_WEP; 873 if (conf->auth_algs & WPA_AUTH_ALG_OPEN) 874 wps->auth_types |= WPS_AUTH_OPEN; 875 if (conf->auth_algs & WPA_AUTH_ALG_SHARED) 876 wps->auth_types |= WPS_AUTH_SHARED; 877 } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) { 878 wps->auth_types |= WPS_AUTH_OPEN; 879 if (conf->default_wep_key_len) 880 wps->encr_types |= WPS_ENCR_WEP; 881 else 882 wps->encr_types |= WPS_ENCR_NONE; 883 } 884 885 if (conf->ssid.wpa_psk_file) { 886 /* Use per-device PSKs */ 887 } else if (conf->ssid.wpa_passphrase) { 888 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase); 889 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase); 890 } else if (conf->ssid.wpa_psk) { 891 wps->network_key = os_malloc(2 * PMK_LEN + 1); 892 if (wps->network_key == NULL) { 893 os_free(wps); 894 return -1; 895 } 896 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1, 897 conf->ssid.wpa_psk->psk, PMK_LEN); 898 wps->network_key_len = 2 * PMK_LEN; 899 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) { 900 wps->network_key = os_malloc(conf->ssid.wep.len[0]); 901 if (wps->network_key == NULL) { 902 os_free(wps); 903 return -1; 904 } 905 os_memcpy(wps->network_key, conf->ssid.wep.key[0], 906 conf->ssid.wep.len[0]); 907 wps->network_key_len = conf->ssid.wep.len[0]; 908 } 909 910 if (conf->ssid.wpa_psk) { 911 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN); 912 wps->psk_set = 1; 913 } 914 915 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) { 916 /* Override parameters to enable security by default */ 917 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 918 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 919 } 920 921 wps->ap_settings = conf->ap_settings; 922 wps->ap_settings_len = conf->ap_settings_len; 923 924 cfg.new_psk_cb = hostapd_wps_new_psk_cb; 925 cfg.set_ie_cb = hostapd_wps_set_ie_cb; 926 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb; 927 cfg.reg_success_cb = hostapd_wps_reg_success_cb; 928 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb; 929 cfg.cb_ctx = hapd; 930 cfg.skip_cred_build = conf->skip_cred_build; 931 cfg.extra_cred = conf->extra_cred; 932 cfg.extra_cred_len = conf->extra_cred_len; 933 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) && 934 conf->skip_cred_build; 935 if (conf->ssid.security_policy == SECURITY_STATIC_WEP) 936 cfg.static_wep_only = 1; 937 cfg.dualband = interface_count(hapd->iface) > 1; 938 if (cfg.dualband) 939 wpa_printf(MSG_DEBUG, "WPS: Dualband AP"); 940 941 wps->registrar = wps_registrar_init(wps, &cfg); 942 if (wps->registrar == NULL) { 943 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar"); 944 os_free(wps->network_key); 945 os_free(wps); 946 return -1; 947 } 948 949 #ifdef CONFIG_WPS_UPNP 950 wps->friendly_name = hapd->conf->friendly_name; 951 wps->manufacturer_url = hapd->conf->manufacturer_url; 952 wps->model_description = hapd->conf->model_description; 953 wps->model_url = hapd->conf->model_url; 954 wps->upc = hapd->conf->upc; 955 #endif /* CONFIG_WPS_UPNP */ 956 957 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd); 958 959 hapd->wps = wps; 960 961 return 0; 962 } 963 964 965 int hostapd_init_wps_complete(struct hostapd_data *hapd) 966 { 967 struct wps_context *wps = hapd->wps; 968 969 if (wps == NULL) 970 return 0; 971 972 #ifdef CONFIG_WPS_UPNP 973 if (hostapd_wps_upnp_init(hapd, wps) < 0) { 974 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP"); 975 wps_registrar_deinit(wps->registrar); 976 os_free(wps->network_key); 977 os_free(wps); 978 hapd->wps = NULL; 979 return -1; 980 } 981 #endif /* CONFIG_WPS_UPNP */ 982 983 return 0; 984 } 985 986 987 void hostapd_deinit_wps(struct hostapd_data *hapd) 988 { 989 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 990 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 991 if (hapd->wps == NULL) 992 return; 993 #ifdef CONFIG_WPS_UPNP 994 hostapd_wps_upnp_deinit(hapd); 995 #endif /* CONFIG_WPS_UPNP */ 996 wps_registrar_deinit(hapd->wps->registrar); 997 os_free(hapd->wps->network_key); 998 wps_device_data_free(&hapd->wps->dev); 999 wpabuf_free(hapd->wps->dh_pubkey); 1000 wpabuf_free(hapd->wps->dh_privkey); 1001 wpabuf_free(hapd->wps->oob_conf.pubkey_hash); 1002 wpabuf_free(hapd->wps->oob_conf.dev_password); 1003 wps_free_pending_msgs(hapd->wps->upnp_msgs); 1004 os_free(hapd->wps); 1005 hapd->wps = NULL; 1006 hostapd_wps_clear_ies(hapd); 1007 } 1008 1009 1010 void hostapd_update_wps(struct hostapd_data *hapd) 1011 { 1012 if (hapd->wps == NULL) 1013 return; 1014 1015 #ifdef CONFIG_WPS_UPNP 1016 hapd->wps->friendly_name = hapd->conf->friendly_name; 1017 hapd->wps->manufacturer_url = hapd->conf->manufacturer_url; 1018 hapd->wps->model_description = hapd->conf->model_description; 1019 hapd->wps->model_url = hapd->conf->model_url; 1020 hapd->wps->upc = hapd->conf->upc; 1021 #endif /* CONFIG_WPS_UPNP */ 1022 1023 hostapd_wps_set_vendor_ext(hapd, hapd->wps); 1024 1025 if (hapd->conf->wps_state) 1026 wps_registrar_update_ie(hapd->wps->registrar); 1027 else 1028 hostapd_deinit_wps(hapd); 1029 } 1030 1031 1032 struct wps_add_pin_data { 1033 const u8 *addr; 1034 const u8 *uuid; 1035 const u8 *pin; 1036 size_t pin_len; 1037 int timeout; 1038 int added; 1039 }; 1040 1041 1042 static int wps_add_pin(struct hostapd_data *hapd, void *ctx) 1043 { 1044 struct wps_add_pin_data *data = ctx; 1045 int ret; 1046 1047 if (hapd->wps == NULL) 1048 return 0; 1049 ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr, 1050 data->uuid, data->pin, data->pin_len, 1051 data->timeout); 1052 if (ret == 0) 1053 data->added++; 1054 return ret; 1055 } 1056 1057 1058 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr, 1059 const char *uuid, const char *pin, int timeout) 1060 { 1061 u8 u[UUID_LEN]; 1062 struct wps_add_pin_data data; 1063 1064 data.addr = addr; 1065 data.uuid = u; 1066 data.pin = (const u8 *) pin; 1067 data.pin_len = os_strlen(pin); 1068 data.timeout = timeout; 1069 data.added = 0; 1070 1071 if (os_strcmp(uuid, "any") == 0) 1072 data.uuid = NULL; 1073 else { 1074 if (uuid_str2bin(uuid, u)) 1075 return -1; 1076 data.uuid = u; 1077 } 1078 if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0) 1079 return -1; 1080 return data.added ? 0 : -1; 1081 } 1082 1083 1084 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx) 1085 { 1086 const u8 *p2p_dev_addr = ctx; 1087 if (hapd->wps == NULL) 1088 return 0; 1089 return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr); 1090 } 1091 1092 1093 int hostapd_wps_button_pushed(struct hostapd_data *hapd, 1094 const u8 *p2p_dev_addr) 1095 { 1096 return hostapd_wps_for_each(hapd, wps_button_pushed, 1097 (void *) p2p_dev_addr); 1098 } 1099 1100 1101 #ifdef CONFIG_WPS_OOB 1102 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type, 1103 char *path, char *method, char *name) 1104 { 1105 struct wps_context *wps = hapd->wps; 1106 struct oob_device_data *oob_dev; 1107 1108 oob_dev = wps_get_oob_device(device_type); 1109 if (oob_dev == NULL) 1110 return -1; 1111 oob_dev->device_path = path; 1112 oob_dev->device_name = name; 1113 wps->oob_conf.oob_method = wps_get_oob_method(method); 1114 1115 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) { 1116 /* 1117 * Use pre-configured DH keys in order to be able to write the 1118 * key hash into the OOB file. 1119 */ 1120 wpabuf_free(wps->dh_pubkey); 1121 wpabuf_free(wps->dh_privkey); 1122 wps->dh_privkey = NULL; 1123 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP), 1124 &wps->dh_privkey); 1125 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192); 1126 if (wps->dh_pubkey == NULL) { 1127 wpa_printf(MSG_ERROR, "WPS: Failed to initialize " 1128 "Diffie-Hellman handshake"); 1129 return -1; 1130 } 1131 } 1132 1133 if (wps_process_oob(wps, oob_dev, 1) < 0) 1134 goto error; 1135 1136 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E || 1137 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) && 1138 hostapd_wps_add_pin(hapd, NULL, "any", 1139 wpabuf_head(wps->oob_conf.dev_password), 0) < 1140 0) 1141 goto error; 1142 1143 return 0; 1144 1145 error: 1146 wpabuf_free(wps->dh_pubkey); 1147 wps->dh_pubkey = NULL; 1148 wpabuf_free(wps->dh_privkey); 1149 wps->dh_privkey = NULL; 1150 return -1; 1151 } 1152 #endif /* CONFIG_WPS_OOB */ 1153 1154 1155 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da, 1156 const u8 *bssid, 1157 const u8 *ie, size_t ie_len) 1158 { 1159 struct hostapd_data *hapd = ctx; 1160 struct wpabuf *wps_ie; 1161 struct ieee802_11_elems elems; 1162 1163 if (hapd->wps == NULL) 1164 return 0; 1165 1166 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) { 1167 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from " 1168 MACSTR, MAC2STR(addr)); 1169 return 0; 1170 } 1171 1172 if (elems.ssid && elems.ssid_len > 0 && 1173 (elems.ssid_len != hapd->conf->ssid.ssid_len || 1174 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) != 1175 0)) 1176 return 0; /* Not for us */ 1177 1178 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA); 1179 if (wps_ie == NULL) 1180 return 0; 1181 if (wps_validate_probe_req(wps_ie, addr) < 0) { 1182 wpabuf_free(wps_ie); 1183 return 0; 1184 } 1185 1186 if (wpabuf_len(wps_ie) > 0) { 1187 int p2p_wildcard = 0; 1188 #ifdef CONFIG_P2P 1189 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN && 1190 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, 1191 P2P_WILDCARD_SSID_LEN) == 0) 1192 p2p_wildcard = 1; 1193 #endif /* CONFIG_P2P */ 1194 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie, 1195 p2p_wildcard); 1196 #ifdef CONFIG_WPS_UPNP 1197 /* FIX: what exactly should be included in the WLANEvent? 1198 * WPS attributes? Full ProbeReq frame? */ 1199 if (!p2p_wildcard) 1200 upnp_wps_device_send_wlan_event( 1201 hapd->wps_upnp, addr, 1202 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie); 1203 #endif /* CONFIG_WPS_UPNP */ 1204 } 1205 1206 wpabuf_free(wps_ie); 1207 1208 return 0; 1209 } 1210 1211 1212 #ifdef CONFIG_WPS_UPNP 1213 1214 static int hostapd_rx_req_put_wlan_response( 1215 void *priv, enum upnp_wps_wlanevent_type ev_type, 1216 const u8 *mac_addr, const struct wpabuf *msg, 1217 enum wps_msg_type msg_type) 1218 { 1219 struct hostapd_data *hapd = priv; 1220 struct sta_info *sta; 1221 struct upnp_pending_message *p; 1222 1223 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr=" 1224 MACSTR, ev_type, MAC2STR(mac_addr)); 1225 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage", 1226 wpabuf_head(msg), wpabuf_len(msg)); 1227 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) { 1228 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected " 1229 "PutWLANResponse WLANEventType %d", ev_type); 1230 return -1; 1231 } 1232 1233 /* 1234 * EAP response to ongoing to WPS Registration. Send it to EAP-WSC 1235 * server implementation for delivery to the peer. 1236 */ 1237 1238 sta = ap_get_sta(hapd, mac_addr); 1239 #ifndef CONFIG_WPS_STRICT 1240 if (!sta) { 1241 /* 1242 * Workaround - Intel wsccmd uses bogus NewWLANEventMAC: 1243 * Pick STA that is in an ongoing WPS registration without 1244 * checking the MAC address. 1245 */ 1246 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based " 1247 "on NewWLANEventMAC; try wildcard match"); 1248 for (sta = hapd->sta_list; sta; sta = sta->next) { 1249 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS)) 1250 break; 1251 } 1252 } 1253 #endif /* CONFIG_WPS_STRICT */ 1254 1255 if (!sta || !(sta->flags & WLAN_STA_WPS)) { 1256 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found"); 1257 return 0; 1258 } 1259 1260 p = os_zalloc(sizeof(*p)); 1261 if (p == NULL) 1262 return -1; 1263 os_memcpy(p->addr, sta->addr, ETH_ALEN); 1264 p->msg = wpabuf_dup(msg); 1265 p->type = msg_type; 1266 p->next = hapd->wps->upnp_msgs; 1267 hapd->wps->upnp_msgs = p; 1268 1269 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap); 1270 } 1271 1272 1273 static int hostapd_wps_upnp_init(struct hostapd_data *hapd, 1274 struct wps_context *wps) 1275 { 1276 struct upnp_wps_device_ctx *ctx; 1277 1278 if (!hapd->conf->upnp_iface) 1279 return 0; 1280 ctx = os_zalloc(sizeof(*ctx)); 1281 if (ctx == NULL) 1282 return -1; 1283 1284 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response; 1285 if (hapd->conf->ap_pin) 1286 ctx->ap_pin = os_strdup(hapd->conf->ap_pin); 1287 1288 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd, 1289 hapd->conf->upnp_iface); 1290 if (hapd->wps_upnp == NULL) 1291 return -1; 1292 wps->wps_upnp = hapd->wps_upnp; 1293 1294 return 0; 1295 } 1296 1297 1298 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd) 1299 { 1300 upnp_wps_device_deinit(hapd->wps_upnp, hapd); 1301 } 1302 1303 #endif /* CONFIG_WPS_UPNP */ 1304 1305 1306 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr, 1307 char *buf, size_t buflen) 1308 { 1309 if (hapd->wps == NULL) 1310 return 0; 1311 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen); 1312 } 1313 1314 1315 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 1316 { 1317 struct hostapd_data *hapd = eloop_data; 1318 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 1319 hostapd_wps_ap_pin_disable(hapd); 1320 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED); 1321 } 1322 1323 1324 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout) 1325 { 1326 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 1327 hapd->ap_pin_failures = 0; 1328 hapd->ap_pin_failures_consecutive = 0; 1329 hapd->conf->ap_setup_locked = 0; 1330 if (hapd->wps->ap_setup_locked) { 1331 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED); 1332 hapd->wps->ap_setup_locked = 0; 1333 wps_registrar_update_ie(hapd->wps->registrar); 1334 } 1335 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1336 if (timeout > 0) 1337 eloop_register_timeout(timeout, 0, 1338 hostapd_wps_ap_pin_timeout, hapd, NULL); 1339 } 1340 1341 1342 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx) 1343 { 1344 os_free(hapd->conf->ap_pin); 1345 hapd->conf->ap_pin = NULL; 1346 #ifdef CONFIG_WPS_UPNP 1347 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL); 1348 #endif /* CONFIG_WPS_UPNP */ 1349 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1350 return 0; 1351 } 1352 1353 1354 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd) 1355 { 1356 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 1357 hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL); 1358 } 1359 1360 1361 struct wps_ap_pin_data { 1362 char pin_txt[9]; 1363 int timeout; 1364 }; 1365 1366 1367 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx) 1368 { 1369 struct wps_ap_pin_data *data = ctx; 1370 os_free(hapd->conf->ap_pin); 1371 hapd->conf->ap_pin = os_strdup(data->pin_txt); 1372 #ifdef CONFIG_WPS_UPNP 1373 upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt); 1374 #endif /* CONFIG_WPS_UPNP */ 1375 hostapd_wps_ap_pin_enable(hapd, data->timeout); 1376 return 0; 1377 } 1378 1379 1380 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout) 1381 { 1382 unsigned int pin; 1383 struct wps_ap_pin_data data; 1384 1385 pin = wps_generate_pin(); 1386 os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin); 1387 data.timeout = timeout; 1388 hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1389 return hapd->conf->ap_pin; 1390 } 1391 1392 1393 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd) 1394 { 1395 return hapd->conf->ap_pin; 1396 } 1397 1398 1399 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin, 1400 int timeout) 1401 { 1402 struct wps_ap_pin_data data; 1403 int ret; 1404 1405 ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin); 1406 if (ret < 0 || ret >= (int) sizeof(data.pin_txt)) 1407 return -1; 1408 data.timeout = timeout; 1409 return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1410 } 1411 1412 1413 static int wps_update_ie(struct hostapd_data *hapd, void *ctx) 1414 { 1415 if (hapd->wps) 1416 wps_registrar_update_ie(hapd->wps->registrar); 1417 return 0; 1418 } 1419 1420 1421 void hostapd_wps_update_ie(struct hostapd_data *hapd) 1422 { 1423 hostapd_wps_for_each(hapd, wps_update_ie, NULL); 1424 } 1425 1426 1427 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid, 1428 const char *auth, const char *encr, const char *key) 1429 { 1430 struct wps_credential cred; 1431 size_t len; 1432 1433 os_memset(&cred, 0, sizeof(cred)); 1434 1435 len = os_strlen(ssid); 1436 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 1437 hexstr2bin(ssid, cred.ssid, len / 2)) 1438 return -1; 1439 cred.ssid_len = len / 2; 1440 1441 if (os_strncmp(auth, "OPEN", 4) == 0) 1442 cred.auth_type = WPS_AUTH_OPEN; 1443 else if (os_strncmp(auth, "WPAPSK", 6) == 0) 1444 cred.auth_type = WPS_AUTH_WPAPSK; 1445 else if (os_strncmp(auth, "WPA2PSK", 7) == 0) 1446 cred.auth_type = WPS_AUTH_WPA2PSK; 1447 else 1448 return -1; 1449 1450 if (encr) { 1451 if (os_strncmp(encr, "NONE", 4) == 0) 1452 cred.encr_type = WPS_ENCR_NONE; 1453 else if (os_strncmp(encr, "WEP", 3) == 0) 1454 cred.encr_type = WPS_ENCR_WEP; 1455 else if (os_strncmp(encr, "TKIP", 4) == 0) 1456 cred.encr_type = WPS_ENCR_TKIP; 1457 else if (os_strncmp(encr, "CCMP", 4) == 0) 1458 cred.encr_type = WPS_ENCR_AES; 1459 else 1460 return -1; 1461 } else 1462 cred.encr_type = WPS_ENCR_NONE; 1463 1464 if (key) { 1465 len = os_strlen(key); 1466 if ((len & 1) || len > 2 * sizeof(cred.key) || 1467 hexstr2bin(key, cred.key, len / 2)) 1468 return -1; 1469 cred.key_len = len / 2; 1470 } 1471 1472 return wps_registrar_config_ap(hapd->wps->registrar, &cred); 1473 } 1474
