1 /* 2 * hostapd / WPS integration 3 * Copyright (c) 2008-2010, Jouni Malinen <j (at) w1.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #include "utils/includes.h" 16 17 #include "utils/common.h" 18 #include "utils/eloop.h" 19 #include "utils/uuid.h" 20 #include "crypto/dh_groups.h" 21 #include "common/wpa_ctrl.h" 22 #include "common/ieee802_11_defs.h" 23 #include "common/ieee802_11_common.h" 24 #include "eapol_auth/eapol_auth_sm.h" 25 #include "eapol_auth/eapol_auth_sm_i.h" 26 #include "wps/wps.h" 27 #include "wps/wps_defs.h" 28 #include "wps/wps_dev_attr.h" 29 #include "hostapd.h" 30 #include "ap_config.h" 31 #include "ap_drv_ops.h" 32 #include "beacon.h" 33 #include "sta_info.h" 34 #include "wps_hostapd.h" 35 36 37 #ifdef CONFIG_WPS_UPNP 38 #include "wps/wps_upnp.h" 39 static int hostapd_wps_upnp_init(struct hostapd_data *hapd, 40 struct wps_context *wps); 41 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd); 42 #endif /* CONFIG_WPS_UPNP */ 43 44 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, 45 const u8 *ie, size_t ie_len); 46 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx); 47 48 49 struct wps_for_each_data { 50 int (*func)(struct hostapd_data *h, void *ctx); 51 void *ctx; 52 }; 53 54 55 static int wps_for_each(struct hostapd_iface *iface, void *ctx) 56 { 57 struct wps_for_each_data *data = ctx; 58 size_t j; 59 60 if (iface == NULL) 61 return 0; 62 for (j = 0; j < iface->num_bss; j++) { 63 struct hostapd_data *hapd = iface->bss[j]; 64 int ret = data->func(hapd, data->ctx); 65 if (ret) 66 return ret; 67 } 68 69 return 0; 70 } 71 72 73 static int hostapd_wps_for_each(struct hostapd_data *hapd, 74 int (*func)(struct hostapd_data *h, void *ctx), 75 void *ctx) 76 { 77 struct hostapd_iface *iface = hapd->iface; 78 struct wps_for_each_data data; 79 data.func = func; 80 data.ctx = ctx; 81 if (iface->for_each_interface == NULL) 82 return wps_for_each(iface, &data); 83 return iface->for_each_interface(iface->interfaces, wps_for_each, 84 &data); 85 } 86 87 88 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk, 89 size_t psk_len) 90 { 91 struct hostapd_data *hapd = ctx; 92 struct hostapd_wpa_psk *p; 93 struct hostapd_ssid *ssid = &hapd->conf->ssid; 94 95 wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA " 96 MACSTR, MAC2STR(mac_addr)); 97 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 98 99 if (psk_len != PMK_LEN) { 100 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu", 101 (unsigned long) psk_len); 102 return -1; 103 } 104 105 /* Add the new PSK to runtime PSK list */ 106 p = os_zalloc(sizeof(*p)); 107 if (p == NULL) 108 return -1; 109 os_memcpy(p->addr, mac_addr, ETH_ALEN); 110 os_memcpy(p->psk, psk, PMK_LEN); 111 112 p->next = ssid->wpa_psk; 113 ssid->wpa_psk = p; 114 115 if (ssid->wpa_psk_file) { 116 FILE *f; 117 char hex[PMK_LEN * 2 + 1]; 118 /* Add the new PSK to PSK list file */ 119 f = fopen(ssid->wpa_psk_file, "a"); 120 if (f == NULL) { 121 wpa_printf(MSG_DEBUG, "Failed to add the PSK to " 122 "'%s'", ssid->wpa_psk_file); 123 return -1; 124 } 125 126 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len); 127 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex); 128 fclose(f); 129 } 130 131 return 0; 132 } 133 134 135 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie, 136 struct wpabuf *probe_resp_ie) 137 { 138 struct hostapd_data *hapd = ctx; 139 wpabuf_free(hapd->wps_beacon_ie); 140 hapd->wps_beacon_ie = beacon_ie; 141 wpabuf_free(hapd->wps_probe_resp_ie); 142 hapd->wps_probe_resp_ie = probe_resp_ie; 143 ieee802_11_set_beacon(hapd); 144 return hostapd_set_ap_wps_ie(hapd); 145 } 146 147 148 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 149 const struct wps_device_data *dev) 150 { 151 struct hostapd_data *hapd = ctx; 152 char uuid[40], txt[400]; 153 int len; 154 char devtype[WPS_DEV_TYPE_BUFSIZE]; 155 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 156 return; 157 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid); 158 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED 159 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]", 160 uuid, MAC2STR(dev->mac_addr), dev->device_name, 161 dev->manufacturer, dev->model_name, 162 dev->model_number, dev->serial_number, 163 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 164 sizeof(devtype))); 165 if (len > 0 && len < (int) sizeof(txt)) 166 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt); 167 168 if (hapd->conf->wps_pin_requests) { 169 FILE *f; 170 struct os_time t; 171 f = fopen(hapd->conf->wps_pin_requests, "a"); 172 if (f == NULL) 173 return; 174 os_get_time(&t); 175 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s" 176 "\t%s\n", 177 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name, 178 dev->manufacturer, dev->model_name, dev->model_number, 179 dev->serial_number, 180 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 181 sizeof(devtype))); 182 fclose(f); 183 } 184 } 185 186 187 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 188 const u8 *uuid_e) 189 { 190 struct hostapd_data *hapd = ctx; 191 char uuid[40]; 192 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 193 return; 194 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s", 195 MAC2STR(mac_addr), uuid); 196 if (hapd->wps_reg_success_cb) 197 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx, 198 mac_addr, uuid_e); 199 } 200 201 202 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr, 203 const u8 *uuid_e, 204 const u8 *pri_dev_type, 205 u16 config_methods, 206 u16 dev_password_id, u8 request_type, 207 const char *dev_name) 208 { 209 struct hostapd_data *hapd = ctx; 210 char uuid[40]; 211 char devtype[WPS_DEV_TYPE_BUFSIZE]; 212 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 213 return; 214 if (dev_name == NULL) 215 dev_name = ""; 216 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR 217 " %s %s 0x%x %u %u [%s]", 218 MAC2STR(addr), uuid, 219 wps_dev_type_bin2str(pri_dev_type, devtype, 220 sizeof(devtype)), 221 config_methods, dev_password_id, request_type, dev_name); 222 } 223 224 225 static int str_starts(const char *str, const char *start) 226 { 227 return os_strncmp(str, start, os_strlen(start)) == 0; 228 } 229 230 231 static void wps_reload_config(void *eloop_data, void *user_ctx) 232 { 233 struct hostapd_iface *iface = eloop_data; 234 235 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data"); 236 if (iface->reload_config(iface) < 0) { 237 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated " 238 "configuration"); 239 } 240 } 241 242 243 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx) 244 { 245 const struct wps_credential *cred = ctx; 246 FILE *oconf, *nconf; 247 size_t len, i; 248 char *tmp_fname; 249 char buf[1024]; 250 int multi_bss; 251 int wpa; 252 253 if (hapd->wps == NULL) 254 return 0; 255 256 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", 257 cred->cred_attr, cred->cred_attr_len); 258 259 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings"); 260 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); 261 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", 262 cred->auth_type); 263 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); 264 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); 265 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 266 cred->key, cred->key_len); 267 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, 268 MAC2STR(cred->mac_addr)); 269 270 if ((hapd->conf->wps_cred_processing == 1 || 271 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) { 272 size_t blen = cred->cred_attr_len * 2 + 1; 273 char *_buf = os_malloc(blen); 274 if (_buf) { 275 wpa_snprintf_hex(_buf, blen, 276 cred->cred_attr, cred->cred_attr_len); 277 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s", 278 WPS_EVENT_NEW_AP_SETTINGS, _buf); 279 os_free(_buf); 280 } 281 } else 282 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS); 283 284 if (hapd->conf->wps_cred_processing == 1) 285 return 0; 286 287 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len); 288 hapd->wps->ssid_len = cred->ssid_len; 289 hapd->wps->encr_types = cred->encr_type; 290 hapd->wps->auth_types = cred->auth_type; 291 if (cred->key_len == 0) { 292 os_free(hapd->wps->network_key); 293 hapd->wps->network_key = NULL; 294 hapd->wps->network_key_len = 0; 295 } else { 296 if (hapd->wps->network_key == NULL || 297 hapd->wps->network_key_len < cred->key_len) { 298 hapd->wps->network_key_len = 0; 299 os_free(hapd->wps->network_key); 300 hapd->wps->network_key = os_malloc(cred->key_len); 301 if (hapd->wps->network_key == NULL) 302 return -1; 303 } 304 hapd->wps->network_key_len = cred->key_len; 305 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len); 306 } 307 hapd->wps->wps_state = WPS_STATE_CONFIGURED; 308 309 len = os_strlen(hapd->iface->config_fname) + 5; 310 tmp_fname = os_malloc(len); 311 if (tmp_fname == NULL) 312 return -1; 313 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname); 314 315 oconf = fopen(hapd->iface->config_fname, "r"); 316 if (oconf == NULL) { 317 wpa_printf(MSG_WARNING, "WPS: Could not open current " 318 "configuration file"); 319 os_free(tmp_fname); 320 return -1; 321 } 322 323 nconf = fopen(tmp_fname, "w"); 324 if (nconf == NULL) { 325 wpa_printf(MSG_WARNING, "WPS: Could not write updated " 326 "configuration file"); 327 os_free(tmp_fname); 328 fclose(oconf); 329 return -1; 330 } 331 332 fprintf(nconf, "# WPS configuration - START\n"); 333 334 fprintf(nconf, "wps_state=2\n"); 335 336 fprintf(nconf, "ssid="); 337 for (i = 0; i < cred->ssid_len; i++) 338 fputc(cred->ssid[i], nconf); 339 fprintf(nconf, "\n"); 340 341 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) && 342 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))) 343 wpa = 3; 344 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) 345 wpa = 2; 346 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)) 347 wpa = 1; 348 else 349 wpa = 0; 350 351 if (wpa) { 352 char *prefix; 353 fprintf(nconf, "wpa=%d\n", wpa); 354 355 fprintf(nconf, "wpa_key_mgmt="); 356 prefix = ""; 357 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) { 358 fprintf(nconf, "WPA-EAP"); 359 prefix = " "; 360 } 361 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) 362 fprintf(nconf, "%sWPA-PSK", prefix); 363 fprintf(nconf, "\n"); 364 365 fprintf(nconf, "wpa_pairwise="); 366 prefix = ""; 367 if (cred->encr_type & WPS_ENCR_AES) { 368 fprintf(nconf, "CCMP"); 369 prefix = " "; 370 } 371 if (cred->encr_type & WPS_ENCR_TKIP) { 372 fprintf(nconf, "%sTKIP", prefix); 373 } 374 fprintf(nconf, "\n"); 375 376 if (cred->key_len >= 8 && cred->key_len < 64) { 377 fprintf(nconf, "wpa_passphrase="); 378 for (i = 0; i < cred->key_len; i++) 379 fputc(cred->key[i], nconf); 380 fprintf(nconf, "\n"); 381 } else if (cred->key_len == 64) { 382 fprintf(nconf, "wpa_psk="); 383 for (i = 0; i < cred->key_len; i++) 384 fputc(cred->key[i], nconf); 385 fprintf(nconf, "\n"); 386 } else { 387 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu " 388 "for WPA/WPA2", 389 (unsigned long) cred->key_len); 390 } 391 392 fprintf(nconf, "auth_algs=1\n"); 393 } else { 394 if ((cred->auth_type & WPS_AUTH_OPEN) && 395 (cred->auth_type & WPS_AUTH_SHARED)) 396 fprintf(nconf, "auth_algs=3\n"); 397 else if (cred->auth_type & WPS_AUTH_SHARED) 398 fprintf(nconf, "auth_algs=2\n"); 399 else 400 fprintf(nconf, "auth_algs=1\n"); 401 402 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) { 403 int key_idx = cred->key_idx; 404 if (key_idx) 405 key_idx--; 406 fprintf(nconf, "wep_default_key=%d\n", key_idx); 407 fprintf(nconf, "wep_key%d=", key_idx); 408 if (cred->key_len == 10 || cred->key_len == 26) { 409 /* WEP key as a hex string */ 410 for (i = 0; i < cred->key_len; i++) 411 fputc(cred->key[i], nconf); 412 } else { 413 /* Raw WEP key; convert to hex */ 414 for (i = 0; i < cred->key_len; i++) 415 fprintf(nconf, "%02x", cred->key[i]); 416 } 417 fprintf(nconf, "\n"); 418 } 419 } 420 421 fprintf(nconf, "# WPS configuration - END\n"); 422 423 multi_bss = 0; 424 while (fgets(buf, sizeof(buf), oconf)) { 425 if (os_strncmp(buf, "bss=", 4) == 0) 426 multi_bss = 1; 427 if (!multi_bss && 428 (str_starts(buf, "ssid=") || 429 str_starts(buf, "auth_algs=") || 430 str_starts(buf, "wep_default_key=") || 431 str_starts(buf, "wep_key") || 432 str_starts(buf, "wps_state=") || 433 str_starts(buf, "wpa=") || 434 str_starts(buf, "wpa_psk=") || 435 str_starts(buf, "wpa_pairwise=") || 436 str_starts(buf, "rsn_pairwise=") || 437 str_starts(buf, "wpa_key_mgmt=") || 438 str_starts(buf, "wpa_passphrase="))) { 439 fprintf(nconf, "#WPS# %s", buf); 440 } else 441 fprintf(nconf, "%s", buf); 442 } 443 444 fclose(nconf); 445 fclose(oconf); 446 447 if (rename(tmp_fname, hapd->iface->config_fname) < 0) { 448 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated " 449 "configuration file: %s", strerror(errno)); 450 os_free(tmp_fname); 451 return -1; 452 } 453 454 os_free(tmp_fname); 455 456 /* Schedule configuration reload after short period of time to allow 457 * EAP-WSC to be finished. 458 */ 459 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface, 460 NULL); 461 462 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated"); 463 464 return 0; 465 } 466 467 468 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred) 469 { 470 struct hostapd_data *hapd = ctx; 471 return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred); 472 } 473 474 475 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx) 476 { 477 struct hostapd_data *hapd = eloop_data; 478 479 if (hapd->conf->ap_setup_locked) 480 return; 481 482 wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN"); 483 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED); 484 hapd->wps->ap_setup_locked = 0; 485 wps_registrar_update_ie(hapd->wps->registrar); 486 } 487 488 489 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx) 490 { 491 struct wps_event_pwd_auth_fail *data = ctx; 492 493 if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL) 494 return 0; 495 496 /* 497 * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup 498 * for some time if this happens multiple times to slow down brute 499 * force attacks. 500 */ 501 hapd->ap_pin_failures++; 502 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u", 503 hapd->ap_pin_failures); 504 if (hapd->ap_pin_failures < 3) 505 return 0; 506 507 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED); 508 hapd->wps->ap_setup_locked = 1; 509 510 wps_registrar_update_ie(hapd->wps->registrar); 511 512 if (!hapd->conf->ap_setup_locked) { 513 if (hapd->ap_pin_lockout_time == 0) 514 hapd->ap_pin_lockout_time = 60; 515 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 && 516 (hapd->ap_pin_failures % 3) == 0) 517 hapd->ap_pin_lockout_time *= 2; 518 519 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds", 520 hapd->ap_pin_lockout_time); 521 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 522 eloop_register_timeout(hapd->ap_pin_lockout_time, 0, 523 hostapd_wps_reenable_ap_pin, hapd, 524 NULL); 525 } 526 527 return 0; 528 } 529 530 531 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd, 532 struct wps_event_pwd_auth_fail *data) 533 { 534 hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data); 535 } 536 537 538 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = { 539 "No Error", /* WPS_EI_NO_ERROR */ 540 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */ 541 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */ 542 }; 543 544 static void hostapd_wps_event_fail(struct hostapd_data *hapd, 545 struct wps_event_fail *fail) 546 { 547 if (fail->error_indication > 0 && 548 fail->error_indication < NUM_WPS_EI_VALUES) { 549 wpa_msg(hapd->msg_ctx, MSG_INFO, 550 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", 551 fail->msg, fail->config_error, fail->error_indication, 552 wps_event_fail_reason[fail->error_indication]); 553 } else { 554 wpa_msg(hapd->msg_ctx, MSG_INFO, 555 WPS_EVENT_FAIL "msg=%d config_error=%d", 556 fail->msg, fail->config_error); 557 } 558 } 559 560 561 static void hostapd_wps_event_cb(void *ctx, enum wps_event event, 562 union wps_event_data *data) 563 { 564 struct hostapd_data *hapd = ctx; 565 566 switch (event) { 567 case WPS_EV_M2D: 568 break; 569 case WPS_EV_FAIL: 570 hostapd_wps_event_fail(hapd, &data->fail); 571 break; 572 case WPS_EV_SUCCESS: 573 break; 574 case WPS_EV_PWD_AUTH_FAIL: 575 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail); 576 break; 577 case WPS_EV_PBC_OVERLAP: 578 break; 579 case WPS_EV_PBC_TIMEOUT: 580 break; 581 case WPS_EV_ER_AP_ADD: 582 break; 583 case WPS_EV_ER_AP_REMOVE: 584 break; 585 case WPS_EV_ER_ENROLLEE_ADD: 586 break; 587 case WPS_EV_ER_ENROLLEE_REMOVE: 588 break; 589 case WPS_EV_ER_AP_SETTINGS: 590 break; 591 case WPS_EV_ER_SET_SELECTED_REGISTRAR: 592 break; 593 } 594 if (hapd->wps_event_cb) 595 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data); 596 } 597 598 599 static void hostapd_wps_clear_ies(struct hostapd_data *hapd) 600 { 601 wpabuf_free(hapd->wps_beacon_ie); 602 hapd->wps_beacon_ie = NULL; 603 604 wpabuf_free(hapd->wps_probe_resp_ie); 605 hapd->wps_probe_resp_ie = NULL; 606 607 hostapd_set_ap_wps_ie(hapd); 608 } 609 610 611 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx) 612 { 613 const u8 **uuid = ctx; 614 size_t j; 615 616 if (iface == NULL) 617 return 0; 618 for (j = 0; j < iface->num_bss; j++) { 619 struct hostapd_data *hapd = iface->bss[j]; 620 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) { 621 *uuid = hapd->wps->uuid; 622 return 1; 623 } 624 } 625 626 return 0; 627 } 628 629 630 static const u8 * get_own_uuid(struct hostapd_iface *iface) 631 { 632 const u8 *uuid; 633 if (iface->for_each_interface == NULL) 634 return NULL; 635 uuid = NULL; 636 iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid); 637 return uuid; 638 } 639 640 641 static int count_interface_cb(struct hostapd_iface *iface, void *ctx) 642 { 643 int *count= ctx; 644 (*count)++; 645 return 0; 646 } 647 648 649 static int interface_count(struct hostapd_iface *iface) 650 { 651 int count = 0; 652 if (iface->for_each_interface == NULL) 653 return 0; 654 iface->for_each_interface(iface->interfaces, count_interface_cb, 655 &count); 656 return count; 657 } 658 659 660 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd, 661 struct wps_context *wps) 662 { 663 int i; 664 665 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) { 666 wpabuf_free(wps->dev.vendor_ext[i]); 667 wps->dev.vendor_ext[i] = NULL; 668 669 if (hapd->conf->wps_vendor_ext[i] == NULL) 670 continue; 671 672 wps->dev.vendor_ext[i] = 673 wpabuf_dup(hapd->conf->wps_vendor_ext[i]); 674 if (wps->dev.vendor_ext[i] == NULL) { 675 while (--i >= 0) 676 wpabuf_free(wps->dev.vendor_ext[i]); 677 return -1; 678 } 679 } 680 681 return 0; 682 } 683 684 685 int hostapd_init_wps(struct hostapd_data *hapd, 686 struct hostapd_bss_config *conf) 687 { 688 struct wps_context *wps; 689 struct wps_registrar_config cfg; 690 691 if (conf->wps_state == 0) { 692 hostapd_wps_clear_ies(hapd); 693 return 0; 694 } 695 696 wps = os_zalloc(sizeof(*wps)); 697 if (wps == NULL) 698 return -1; 699 700 wps->cred_cb = hostapd_wps_cred_cb; 701 wps->event_cb = hostapd_wps_event_cb; 702 wps->cb_ctx = hapd; 703 704 os_memset(&cfg, 0, sizeof(cfg)); 705 wps->wps_state = hapd->conf->wps_state; 706 wps->ap_setup_locked = hapd->conf->ap_setup_locked; 707 if (is_nil_uuid(hapd->conf->uuid)) { 708 const u8 *uuid; 709 uuid = get_own_uuid(hapd->iface); 710 if (uuid) { 711 os_memcpy(wps->uuid, uuid, UUID_LEN); 712 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another " 713 "interface", wps->uuid, UUID_LEN); 714 } else { 715 uuid_gen_mac_addr(hapd->own_addr, wps->uuid); 716 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC " 717 "address", wps->uuid, UUID_LEN); 718 } 719 } else { 720 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN); 721 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID", 722 wps->uuid, UUID_LEN); 723 } 724 wps->ssid_len = hapd->conf->ssid.ssid_len; 725 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len); 726 wps->ap = 1; 727 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN); 728 wps->dev.device_name = hapd->conf->device_name ? 729 os_strdup(hapd->conf->device_name) : NULL; 730 wps->dev.manufacturer = hapd->conf->manufacturer ? 731 os_strdup(hapd->conf->manufacturer) : NULL; 732 wps->dev.model_name = hapd->conf->model_name ? 733 os_strdup(hapd->conf->model_name) : NULL; 734 wps->dev.model_number = hapd->conf->model_number ? 735 os_strdup(hapd->conf->model_number) : NULL; 736 wps->dev.serial_number = hapd->conf->serial_number ? 737 os_strdup(hapd->conf->serial_number) : NULL; 738 wps->config_methods = 739 wps_config_methods_str2bin(hapd->conf->config_methods); 740 #ifdef CONFIG_WPS2 741 if ((wps->config_methods & 742 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 743 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 744 wpa_printf(MSG_INFO, "WPS: Converting display to " 745 "virtual_display for WPS 2.0 compliance"); 746 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY; 747 } 748 if ((wps->config_methods & 749 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 750 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 751 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 752 "virtual_push_button for WPS 2.0 compliance"); 753 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 754 } 755 #endif /* CONFIG_WPS2 */ 756 os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type, 757 WPS_DEV_TYPE_LEN); 758 759 if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) { 760 os_free(wps); 761 return -1; 762 } 763 764 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version); 765 wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ? 766 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */ 767 768 if (conf->wpa & WPA_PROTO_RSN) { 769 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 770 wps->auth_types |= WPS_AUTH_WPA2PSK; 771 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 772 wps->auth_types |= WPS_AUTH_WPA2; 773 774 if (conf->rsn_pairwise & WPA_CIPHER_CCMP) 775 wps->encr_types |= WPS_ENCR_AES; 776 if (conf->rsn_pairwise & WPA_CIPHER_TKIP) 777 wps->encr_types |= WPS_ENCR_TKIP; 778 } 779 780 if (conf->wpa & WPA_PROTO_WPA) { 781 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 782 wps->auth_types |= WPS_AUTH_WPAPSK; 783 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 784 wps->auth_types |= WPS_AUTH_WPA; 785 786 if (conf->wpa_pairwise & WPA_CIPHER_CCMP) 787 wps->encr_types |= WPS_ENCR_AES; 788 if (conf->wpa_pairwise & WPA_CIPHER_TKIP) 789 wps->encr_types |= WPS_ENCR_TKIP; 790 } 791 792 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) { 793 wps->encr_types |= WPS_ENCR_NONE; 794 wps->auth_types |= WPS_AUTH_OPEN; 795 } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) { 796 wps->encr_types |= WPS_ENCR_WEP; 797 if (conf->auth_algs & WPA_AUTH_ALG_OPEN) 798 wps->auth_types |= WPS_AUTH_OPEN; 799 if (conf->auth_algs & WPA_AUTH_ALG_SHARED) 800 wps->auth_types |= WPS_AUTH_SHARED; 801 } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) { 802 wps->auth_types |= WPS_AUTH_OPEN; 803 if (conf->default_wep_key_len) 804 wps->encr_types |= WPS_ENCR_WEP; 805 else 806 wps->encr_types |= WPS_ENCR_NONE; 807 } 808 809 if (conf->ssid.wpa_psk_file) { 810 /* Use per-device PSKs */ 811 } else if (conf->ssid.wpa_passphrase) { 812 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase); 813 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase); 814 } else if (conf->ssid.wpa_psk) { 815 wps->network_key = os_malloc(2 * PMK_LEN + 1); 816 if (wps->network_key == NULL) { 817 os_free(wps); 818 return -1; 819 } 820 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1, 821 conf->ssid.wpa_psk->psk, PMK_LEN); 822 wps->network_key_len = 2 * PMK_LEN; 823 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) { 824 wps->network_key = os_malloc(conf->ssid.wep.len[0]); 825 if (wps->network_key == NULL) { 826 os_free(wps); 827 return -1; 828 } 829 os_memcpy(wps->network_key, conf->ssid.wep.key[0], 830 conf->ssid.wep.len[0]); 831 wps->network_key_len = conf->ssid.wep.len[0]; 832 } 833 834 if (conf->ssid.wpa_psk) { 835 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN); 836 wps->psk_set = 1; 837 } 838 839 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) { 840 /* Override parameters to enable security by default */ 841 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 842 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 843 } 844 845 wps->ap_settings = conf->ap_settings; 846 wps->ap_settings_len = conf->ap_settings_len; 847 848 cfg.new_psk_cb = hostapd_wps_new_psk_cb; 849 cfg.set_ie_cb = hostapd_wps_set_ie_cb; 850 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb; 851 cfg.reg_success_cb = hostapd_wps_reg_success_cb; 852 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb; 853 cfg.cb_ctx = hapd; 854 cfg.skip_cred_build = conf->skip_cred_build; 855 cfg.extra_cred = conf->extra_cred; 856 cfg.extra_cred_len = conf->extra_cred_len; 857 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) && 858 conf->skip_cred_build; 859 if (conf->ssid.security_policy == SECURITY_STATIC_WEP) 860 cfg.static_wep_only = 1; 861 cfg.dualband = interface_count(hapd->iface) > 1; 862 if (cfg.dualband) 863 wpa_printf(MSG_DEBUG, "WPS: Dualband AP"); 864 865 wps->registrar = wps_registrar_init(wps, &cfg); 866 if (wps->registrar == NULL) { 867 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar"); 868 os_free(wps->network_key); 869 os_free(wps); 870 return -1; 871 } 872 873 #ifdef CONFIG_WPS_UPNP 874 wps->friendly_name = hapd->conf->friendly_name; 875 wps->manufacturer_url = hapd->conf->manufacturer_url; 876 wps->model_description = hapd->conf->model_description; 877 wps->model_url = hapd->conf->model_url; 878 wps->upc = hapd->conf->upc; 879 #endif /* CONFIG_WPS_UPNP */ 880 881 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd); 882 883 hapd->wps = wps; 884 885 return 0; 886 } 887 888 889 int hostapd_init_wps_complete(struct hostapd_data *hapd) 890 { 891 struct wps_context *wps = hapd->wps; 892 893 if (wps == NULL) 894 return 0; 895 896 #ifdef CONFIG_WPS_UPNP 897 if (hostapd_wps_upnp_init(hapd, wps) < 0) { 898 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP"); 899 wps_registrar_deinit(wps->registrar); 900 os_free(wps->network_key); 901 os_free(wps); 902 hapd->wps = NULL; 903 return -1; 904 } 905 #endif /* CONFIG_WPS_UPNP */ 906 907 return 0; 908 } 909 910 911 void hostapd_deinit_wps(struct hostapd_data *hapd) 912 { 913 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 914 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 915 if (hapd->wps == NULL) 916 return; 917 #ifdef CONFIG_WPS_UPNP 918 hostapd_wps_upnp_deinit(hapd); 919 #endif /* CONFIG_WPS_UPNP */ 920 wps_registrar_deinit(hapd->wps->registrar); 921 os_free(hapd->wps->network_key); 922 wps_device_data_free(&hapd->wps->dev); 923 wpabuf_free(hapd->wps->dh_pubkey); 924 wpabuf_free(hapd->wps->dh_privkey); 925 wpabuf_free(hapd->wps->oob_conf.pubkey_hash); 926 wpabuf_free(hapd->wps->oob_conf.dev_password); 927 wps_free_pending_msgs(hapd->wps->upnp_msgs); 928 os_free(hapd->wps); 929 hapd->wps = NULL; 930 hostapd_wps_clear_ies(hapd); 931 } 932 933 934 void hostapd_update_wps(struct hostapd_data *hapd) 935 { 936 if (hapd->wps == NULL) 937 return; 938 939 #ifdef CONFIG_WPS_UPNP 940 hapd->wps->friendly_name = hapd->conf->friendly_name; 941 hapd->wps->manufacturer_url = hapd->conf->manufacturer_url; 942 hapd->wps->model_description = hapd->conf->model_description; 943 hapd->wps->model_url = hapd->conf->model_url; 944 hapd->wps->upc = hapd->conf->upc; 945 #endif /* CONFIG_WPS_UPNP */ 946 947 hostapd_wps_set_vendor_ext(hapd, hapd->wps); 948 949 if (hapd->conf->wps_state) 950 wps_registrar_update_ie(hapd->wps->registrar); 951 else 952 hostapd_deinit_wps(hapd); 953 } 954 955 956 struct wps_add_pin_data { 957 const u8 *addr; 958 const u8 *uuid; 959 const u8 *pin; 960 size_t pin_len; 961 int timeout; 962 int added; 963 }; 964 965 966 static int wps_add_pin(struct hostapd_data *hapd, void *ctx) 967 { 968 struct wps_add_pin_data *data = ctx; 969 int ret; 970 971 if (hapd->wps == NULL) 972 return 0; 973 ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr, 974 data->uuid, data->pin, data->pin_len, 975 data->timeout); 976 if (ret == 0) 977 data->added++; 978 return ret; 979 } 980 981 982 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr, 983 const char *uuid, const char *pin, int timeout) 984 { 985 u8 u[UUID_LEN]; 986 struct wps_add_pin_data data; 987 988 data.addr = addr; 989 data.uuid = u; 990 data.pin = (const u8 *) pin; 991 data.pin_len = os_strlen(pin); 992 data.timeout = timeout; 993 data.added = 0; 994 995 if (os_strcmp(uuid, "any") == 0) 996 data.uuid = NULL; 997 else { 998 if (uuid_str2bin(uuid, u)) 999 return -1; 1000 data.uuid = u; 1001 } 1002 if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0) 1003 return -1; 1004 return data.added ? 0 : -1; 1005 } 1006 1007 1008 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx) 1009 { 1010 const u8 *p2p_dev_addr = ctx; 1011 if (hapd->wps == NULL) 1012 return 0; 1013 return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr); 1014 } 1015 1016 1017 int hostapd_wps_button_pushed(struct hostapd_data *hapd, 1018 const u8 *p2p_dev_addr) 1019 { 1020 return hostapd_wps_for_each(hapd, wps_button_pushed, 1021 (void *) p2p_dev_addr); 1022 } 1023 1024 1025 #ifdef CONFIG_WPS_OOB 1026 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type, 1027 char *path, char *method, char *name) 1028 { 1029 struct wps_context *wps = hapd->wps; 1030 struct oob_device_data *oob_dev; 1031 1032 oob_dev = wps_get_oob_device(device_type); 1033 if (oob_dev == NULL) 1034 return -1; 1035 oob_dev->device_path = path; 1036 oob_dev->device_name = name; 1037 wps->oob_conf.oob_method = wps_get_oob_method(method); 1038 1039 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) { 1040 /* 1041 * Use pre-configured DH keys in order to be able to write the 1042 * key hash into the OOB file. 1043 */ 1044 wpabuf_free(wps->dh_pubkey); 1045 wpabuf_free(wps->dh_privkey); 1046 wps->dh_privkey = NULL; 1047 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP), 1048 &wps->dh_privkey); 1049 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192); 1050 if (wps->dh_pubkey == NULL) { 1051 wpa_printf(MSG_ERROR, "WPS: Failed to initialize " 1052 "Diffie-Hellman handshake"); 1053 return -1; 1054 } 1055 } 1056 1057 if (wps_process_oob(wps, oob_dev, 1) < 0) 1058 goto error; 1059 1060 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E || 1061 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) && 1062 hostapd_wps_add_pin(hapd, NULL, "any", 1063 wpabuf_head(wps->oob_conf.dev_password), 0) < 1064 0) 1065 goto error; 1066 1067 return 0; 1068 1069 error: 1070 wpabuf_free(wps->dh_pubkey); 1071 wps->dh_pubkey = NULL; 1072 wpabuf_free(wps->dh_privkey); 1073 wps->dh_privkey = NULL; 1074 return -1; 1075 } 1076 #endif /* CONFIG_WPS_OOB */ 1077 1078 1079 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, 1080 const u8 *ie, size_t ie_len) 1081 { 1082 struct hostapd_data *hapd = ctx; 1083 struct wpabuf *wps_ie; 1084 struct ieee802_11_elems elems; 1085 1086 if (hapd->wps == NULL) 1087 return 0; 1088 1089 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) { 1090 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from " 1091 MACSTR, MAC2STR(addr)); 1092 return 0; 1093 } 1094 1095 if (elems.ssid && elems.ssid_len > 0 && 1096 (elems.ssid_len != hapd->conf->ssid.ssid_len || 1097 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) != 1098 0)) 1099 return 0; /* Not for us */ 1100 1101 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA); 1102 if (wps_ie == NULL) 1103 return 0; 1104 if (wps_validate_probe_req(wps_ie, addr) < 0) { 1105 wpabuf_free(wps_ie); 1106 return 0; 1107 } 1108 1109 if (wpabuf_len(wps_ie) > 0) { 1110 int p2p_wildcard = 0; 1111 #ifdef CONFIG_P2P 1112 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN && 1113 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, 1114 P2P_WILDCARD_SSID_LEN) == 0) 1115 p2p_wildcard = 1; 1116 #endif /* CONFIG_P2P */ 1117 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie, 1118 p2p_wildcard); 1119 #ifdef CONFIG_WPS_UPNP 1120 /* FIX: what exactly should be included in the WLANEvent? 1121 * WPS attributes? Full ProbeReq frame? */ 1122 if (!p2p_wildcard) 1123 upnp_wps_device_send_wlan_event( 1124 hapd->wps_upnp, addr, 1125 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie); 1126 #endif /* CONFIG_WPS_UPNP */ 1127 } 1128 1129 wpabuf_free(wps_ie); 1130 1131 return 0; 1132 } 1133 1134 1135 #ifdef CONFIG_WPS_UPNP 1136 1137 static int hostapd_rx_req_put_wlan_response( 1138 void *priv, enum upnp_wps_wlanevent_type ev_type, 1139 const u8 *mac_addr, const struct wpabuf *msg, 1140 enum wps_msg_type msg_type) 1141 { 1142 struct hostapd_data *hapd = priv; 1143 struct sta_info *sta; 1144 struct upnp_pending_message *p; 1145 1146 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr=" 1147 MACSTR, ev_type, MAC2STR(mac_addr)); 1148 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage", 1149 wpabuf_head(msg), wpabuf_len(msg)); 1150 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) { 1151 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected " 1152 "PutWLANResponse WLANEventType %d", ev_type); 1153 return -1; 1154 } 1155 1156 /* 1157 * EAP response to ongoing to WPS Registration. Send it to EAP-WSC 1158 * server implementation for delivery to the peer. 1159 */ 1160 1161 sta = ap_get_sta(hapd, mac_addr); 1162 #ifndef CONFIG_WPS_STRICT 1163 if (!sta) { 1164 /* 1165 * Workaround - Intel wsccmd uses bogus NewWLANEventMAC: 1166 * Pick STA that is in an ongoing WPS registration without 1167 * checking the MAC address. 1168 */ 1169 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based " 1170 "on NewWLANEventMAC; try wildcard match"); 1171 for (sta = hapd->sta_list; sta; sta = sta->next) { 1172 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS)) 1173 break; 1174 } 1175 } 1176 #endif /* CONFIG_WPS_STRICT */ 1177 1178 if (!sta) { 1179 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found"); 1180 return 0; 1181 } 1182 1183 p = os_zalloc(sizeof(*p)); 1184 if (p == NULL) 1185 return -1; 1186 os_memcpy(p->addr, sta->addr, ETH_ALEN); 1187 p->msg = wpabuf_dup(msg); 1188 p->type = msg_type; 1189 p->next = hapd->wps->upnp_msgs; 1190 hapd->wps->upnp_msgs = p; 1191 1192 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap); 1193 } 1194 1195 1196 static int hostapd_wps_upnp_init(struct hostapd_data *hapd, 1197 struct wps_context *wps) 1198 { 1199 struct upnp_wps_device_ctx *ctx; 1200 1201 if (!hapd->conf->upnp_iface) 1202 return 0; 1203 ctx = os_zalloc(sizeof(*ctx)); 1204 if (ctx == NULL) 1205 return -1; 1206 1207 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response; 1208 if (hapd->conf->ap_pin) 1209 ctx->ap_pin = os_strdup(hapd->conf->ap_pin); 1210 1211 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd, 1212 hapd->conf->upnp_iface); 1213 if (hapd->wps_upnp == NULL) 1214 return -1; 1215 wps->wps_upnp = hapd->wps_upnp; 1216 1217 return 0; 1218 } 1219 1220 1221 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd) 1222 { 1223 upnp_wps_device_deinit(hapd->wps_upnp, hapd); 1224 } 1225 1226 #endif /* CONFIG_WPS_UPNP */ 1227 1228 1229 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr, 1230 char *buf, size_t buflen) 1231 { 1232 if (hapd->wps == NULL) 1233 return 0; 1234 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen); 1235 } 1236 1237 1238 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 1239 { 1240 struct hostapd_data *hapd = eloop_data; 1241 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 1242 hostapd_wps_ap_pin_disable(hapd); 1243 } 1244 1245 1246 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout) 1247 { 1248 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 1249 hapd->ap_pin_failures = 0; 1250 hapd->conf->ap_setup_locked = 0; 1251 if (hapd->wps->ap_setup_locked) { 1252 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED); 1253 hapd->wps->ap_setup_locked = 0; 1254 wps_registrar_update_ie(hapd->wps->registrar); 1255 } 1256 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1257 if (timeout > 0) 1258 eloop_register_timeout(timeout, 0, 1259 hostapd_wps_ap_pin_timeout, hapd, NULL); 1260 } 1261 1262 1263 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx) 1264 { 1265 os_free(hapd->conf->ap_pin); 1266 hapd->conf->ap_pin = NULL; 1267 #ifdef CONFIG_WPS_UPNP 1268 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL); 1269 #endif /* CONFIG_WPS_UPNP */ 1270 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1271 return 0; 1272 } 1273 1274 1275 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd) 1276 { 1277 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 1278 hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL); 1279 } 1280 1281 1282 struct wps_ap_pin_data { 1283 char pin_txt[9]; 1284 int timeout; 1285 }; 1286 1287 1288 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx) 1289 { 1290 struct wps_ap_pin_data *data = ctx; 1291 os_free(hapd->conf->ap_pin); 1292 hapd->conf->ap_pin = os_strdup(data->pin_txt); 1293 #ifdef CONFIG_WPS_UPNP 1294 upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt); 1295 #endif /* CONFIG_WPS_UPNP */ 1296 hostapd_wps_ap_pin_enable(hapd, data->timeout); 1297 return 0; 1298 } 1299 1300 1301 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout) 1302 { 1303 unsigned int pin; 1304 struct wps_ap_pin_data data; 1305 1306 pin = wps_generate_pin(); 1307 os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%u", pin); 1308 data.timeout = timeout; 1309 hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1310 return hapd->conf->ap_pin; 1311 } 1312 1313 1314 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd) 1315 { 1316 return hapd->conf->ap_pin; 1317 } 1318 1319 1320 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin, 1321 int timeout) 1322 { 1323 struct wps_ap_pin_data data; 1324 int ret; 1325 1326 ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin); 1327 if (ret < 0 || ret >= (int) sizeof(data.pin_txt)) 1328 return -1; 1329 data.timeout = timeout; 1330 return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1331 } 1332 1333 1334 static int wps_update_ie(struct hostapd_data *hapd, void *ctx) 1335 { 1336 if (hapd->wps) 1337 wps_registrar_update_ie(hapd->wps->registrar); 1338 return 0; 1339 } 1340 1341 1342 void hostapd_wps_update_ie(struct hostapd_data *hapd) 1343 { 1344 hostapd_wps_for_each(hapd, wps_update_ie, NULL); 1345 } 1346 1347 1348 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid, 1349 const char *auth, const char *encr, const char *key) 1350 { 1351 struct wps_credential cred; 1352 size_t len; 1353 1354 os_memset(&cred, 0, sizeof(cred)); 1355 1356 len = os_strlen(ssid); 1357 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 1358 hexstr2bin(ssid, cred.ssid, len / 2)) 1359 return -1; 1360 cred.ssid_len = len / 2; 1361 1362 if (os_strncmp(auth, "OPEN", 4) == 0) 1363 cred.auth_type = WPS_AUTH_OPEN; 1364 else if (os_strncmp(auth, "WPAPSK", 6) == 0) 1365 cred.auth_type = WPS_AUTH_WPAPSK; 1366 else if (os_strncmp(auth, "WPA2PSK", 7) == 0) 1367 cred.auth_type = WPS_AUTH_WPA2PSK; 1368 else 1369 return -1; 1370 1371 if (encr) { 1372 if (os_strncmp(encr, "NONE", 4) == 0) 1373 cred.encr_type = WPS_ENCR_NONE; 1374 else if (os_strncmp(encr, "WEP", 3) == 0) 1375 cred.encr_type = WPS_ENCR_WEP; 1376 else if (os_strncmp(encr, "TKIP", 4) == 0) 1377 cred.encr_type = WPS_ENCR_TKIP; 1378 else if (os_strncmp(encr, "CCMP", 4) == 0) 1379 cred.encr_type = WPS_ENCR_AES; 1380 else 1381 return -1; 1382 } else 1383 cred.encr_type = WPS_ENCR_NONE; 1384 1385 if (key) { 1386 len = os_strlen(key); 1387 if ((len & 1) || len > 2 * sizeof(cred.key) || 1388 hexstr2bin(key, cred.key, len / 2)) 1389 return -1; 1390 cred.key_len = len / 2; 1391 } 1392 1393 return wps_registrar_config_ap(hapd->wps->registrar, &cred); 1394 } 1395
