2 * hostapd / WPS integration
3 * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
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.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
15 #include "utils/includes.h"
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"
27 #include "wps/wps_defs.h"
28 #include "wps/wps_dev_attr.h"
30 #include "ap_config.h"
33 #include "wps_hostapd.h"
36 #ifdef CONFIG_WPS_UPNP
37 #include "wps/wps_upnp.h"
38 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
39 struct wps_context *wps);
40 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
41 #endif /* CONFIG_WPS_UPNP */
43 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
44 const u8 *ie, size_t ie_len);
45 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
48 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
51 struct hostapd_data *hapd = ctx;
52 struct hostapd_wpa_psk *p;
53 struct hostapd_ssid *ssid = &hapd->conf->ssid;
55 wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
56 MACSTR, MAC2STR(mac_addr));
57 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
59 if (psk_len != PMK_LEN) {
60 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
61 (unsigned long) psk_len);
65 /* Add the new PSK to runtime PSK list */
66 p = os_zalloc(sizeof(*p));
69 os_memcpy(p->addr, mac_addr, ETH_ALEN);
70 os_memcpy(p->psk, psk, PMK_LEN);
72 p->next = ssid->wpa_psk;
75 if (ssid->wpa_psk_file) {
77 char hex[PMK_LEN * 2 + 1];
78 /* Add the new PSK to PSK list file */
79 f = fopen(ssid->wpa_psk_file, "a");
81 wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
82 "'%s'", ssid->wpa_psk_file);
86 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
87 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
95 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
96 struct wpabuf *probe_resp_ie)
98 struct hostapd_data *hapd = ctx;
99 wpabuf_free(hapd->wps_beacon_ie);
100 hapd->wps_beacon_ie = beacon_ie;
101 wpabuf_free(hapd->wps_probe_resp_ie);
102 hapd->wps_probe_resp_ie = probe_resp_ie;
103 ieee802_11_set_beacon(hapd);
104 return hapd->drv.set_ap_wps_ie(hapd);
108 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
109 const struct wps_device_data *dev)
111 struct hostapd_data *hapd = ctx;
112 char uuid[40], txt[400];
114 char devtype[WPS_DEV_TYPE_BUFSIZE];
115 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
117 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
118 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
119 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
120 uuid, MAC2STR(dev->mac_addr), dev->device_name,
121 dev->manufacturer, dev->model_name,
122 dev->model_number, dev->serial_number,
123 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
125 if (len > 0 && len < (int) sizeof(txt))
126 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
128 if (hapd->conf->wps_pin_requests) {
131 f = fopen(hapd->conf->wps_pin_requests, "a");
135 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
137 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
138 dev->manufacturer, dev->model_name, dev->model_number,
140 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
147 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
150 struct hostapd_data *hapd = ctx;
152 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
154 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
155 MAC2STR(mac_addr), uuid);
156 if (hapd->wps_reg_success_cb)
157 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
162 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
164 const u8 *pri_dev_type,
166 u16 dev_password_id, u8 request_type,
167 const char *dev_name)
169 struct hostapd_data *hapd = ctx;
171 char devtype[WPS_DEV_TYPE_BUFSIZE];
172 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
174 if (dev_name == NULL)
176 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
177 " %s %s 0x%x %u %u [%s]",
179 wps_dev_type_bin2str(pri_dev_type, devtype,
181 config_methods, dev_password_id, request_type, dev_name);
185 static int str_starts(const char *str, const char *start)
187 return os_strncmp(str, start, os_strlen(start)) == 0;
191 static void wps_reload_config(void *eloop_data, void *user_ctx)
193 struct hostapd_iface *iface = eloop_data;
195 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
196 if (iface->reload_config(iface) < 0) {
197 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
203 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
205 struct hostapd_data *hapd = ctx;
213 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
214 cred->cred_attr, cred->cred_attr_len);
216 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
217 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
218 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
220 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
221 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
222 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
223 cred->key, cred->key_len);
224 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
225 MAC2STR(cred->mac_addr));
227 if ((hapd->conf->wps_cred_processing == 1 ||
228 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
229 size_t blen = cred->cred_attr_len * 2 + 1;
230 char *_buf = os_malloc(blen);
232 wpa_snprintf_hex(_buf, blen,
233 cred->cred_attr, cred->cred_attr_len);
234 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
235 WPS_EVENT_NEW_AP_SETTINGS, _buf);
239 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
241 if (hapd->conf->wps_cred_processing == 1)
244 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
245 hapd->wps->ssid_len = cred->ssid_len;
246 hapd->wps->encr_types = cred->encr_type;
247 hapd->wps->auth_types = cred->auth_type;
248 if (cred->key_len == 0) {
249 os_free(hapd->wps->network_key);
250 hapd->wps->network_key = NULL;
251 hapd->wps->network_key_len = 0;
253 if (hapd->wps->network_key == NULL ||
254 hapd->wps->network_key_len < cred->key_len) {
255 hapd->wps->network_key_len = 0;
256 os_free(hapd->wps->network_key);
257 hapd->wps->network_key = os_malloc(cred->key_len);
258 if (hapd->wps->network_key == NULL)
261 hapd->wps->network_key_len = cred->key_len;
262 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
264 hapd->wps->wps_state = WPS_STATE_CONFIGURED;
266 len = os_strlen(hapd->iface->config_fname) + 5;
267 tmp_fname = os_malloc(len);
268 if (tmp_fname == NULL)
270 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
272 oconf = fopen(hapd->iface->config_fname, "r");
274 wpa_printf(MSG_WARNING, "WPS: Could not open current "
275 "configuration file");
280 nconf = fopen(tmp_fname, "w");
282 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
283 "configuration file");
289 fprintf(nconf, "# WPS configuration - START\n");
291 fprintf(nconf, "wps_state=2\n");
293 fprintf(nconf, "ssid=");
294 for (i = 0; i < cred->ssid_len; i++)
295 fputc(cred->ssid[i], nconf);
296 fprintf(nconf, "\n");
298 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
299 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
301 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
303 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
310 fprintf(nconf, "wpa=%d\n", wpa);
312 fprintf(nconf, "wpa_key_mgmt=");
314 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
315 fprintf(nconf, "WPA-EAP");
318 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
319 fprintf(nconf, "%sWPA-PSK", prefix);
320 fprintf(nconf, "\n");
322 fprintf(nconf, "wpa_pairwise=");
324 if (cred->encr_type & WPS_ENCR_AES) {
325 fprintf(nconf, "CCMP");
328 if (cred->encr_type & WPS_ENCR_TKIP) {
329 fprintf(nconf, "%sTKIP", prefix);
331 fprintf(nconf, "\n");
333 if (cred->key_len >= 8 && cred->key_len < 64) {
334 fprintf(nconf, "wpa_passphrase=");
335 for (i = 0; i < cred->key_len; i++)
336 fputc(cred->key[i], nconf);
337 fprintf(nconf, "\n");
338 } else if (cred->key_len == 64) {
339 fprintf(nconf, "wpa_psk=");
340 for (i = 0; i < cred->key_len; i++)
341 fputc(cred->key[i], nconf);
342 fprintf(nconf, "\n");
344 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
346 (unsigned long) cred->key_len);
349 fprintf(nconf, "auth_algs=1\n");
351 if ((cred->auth_type & WPS_AUTH_OPEN) &&
352 (cred->auth_type & WPS_AUTH_SHARED))
353 fprintf(nconf, "auth_algs=3\n");
354 else if (cred->auth_type & WPS_AUTH_SHARED)
355 fprintf(nconf, "auth_algs=2\n");
357 fprintf(nconf, "auth_algs=1\n");
359 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
360 int key_idx = cred->key_idx;
363 fprintf(nconf, "wep_default_key=%d\n", key_idx);
364 fprintf(nconf, "wep_key%d=", key_idx);
365 if (cred->key_len == 10 || cred->key_len == 26) {
366 /* WEP key as a hex string */
367 for (i = 0; i < cred->key_len; i++)
368 fputc(cred->key[i], nconf);
370 /* Raw WEP key; convert to hex */
371 for (i = 0; i < cred->key_len; i++)
372 fprintf(nconf, "%02x", cred->key[i]);
374 fprintf(nconf, "\n");
378 fprintf(nconf, "# WPS configuration - END\n");
381 while (fgets(buf, sizeof(buf), oconf)) {
382 if (os_strncmp(buf, "bss=", 4) == 0)
385 (str_starts(buf, "ssid=") ||
386 str_starts(buf, "auth_algs=") ||
387 str_starts(buf, "wps_state=") ||
388 str_starts(buf, "wpa=") ||
389 str_starts(buf, "wpa_psk=") ||
390 str_starts(buf, "wpa_pairwise=") ||
391 str_starts(buf, "rsn_pairwise=") ||
392 str_starts(buf, "wpa_key_mgmt=") ||
393 str_starts(buf, "wpa_passphrase="))) {
394 fprintf(nconf, "#WPS# %s", buf);
396 fprintf(nconf, "%s", buf);
402 if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
403 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
404 "configuration file: %s", strerror(errno));
411 /* Schedule configuration reload after short period of time to allow
412 * EAP-WSC to be finished.
414 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
417 /* TODO: dualband AP may need to update multiple configuration files */
419 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
425 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
427 struct hostapd_data *hapd = eloop_data;
429 if (hapd->conf->ap_setup_locked)
432 wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
433 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
434 hapd->wps->ap_setup_locked = 0;
435 wps_registrar_update_ie(hapd->wps->registrar);
439 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
440 struct wps_event_pwd_auth_fail *data)
442 if (!data->enrollee || hapd->conf->ap_pin == NULL)
446 * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
447 * for some time if this happens multiple times to slow down brute
450 hapd->ap_pin_failures++;
451 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
452 hapd->ap_pin_failures);
453 if (hapd->ap_pin_failures < 3)
456 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
457 hapd->wps->ap_setup_locked = 1;
459 wps_registrar_update_ie(hapd->wps->registrar);
461 if (!hapd->conf->ap_setup_locked) {
462 if (hapd->ap_pin_lockout_time == 0)
463 hapd->ap_pin_lockout_time = 60;
464 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
465 (hapd->ap_pin_failures % 3) == 0)
466 hapd->ap_pin_lockout_time *= 2;
468 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
469 hapd->ap_pin_lockout_time);
470 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
471 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
472 hostapd_wps_reenable_ap_pin, hapd,
476 /* TODO: dualband AP may need to update other interfaces */
480 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
481 union wps_event_data *data)
483 struct hostapd_data *hapd = ctx;
485 if (event == WPS_EV_PWD_AUTH_FAIL)
486 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
490 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
492 wpabuf_free(hapd->wps_beacon_ie);
493 hapd->wps_beacon_ie = NULL;
495 wpabuf_free(hapd->wps_probe_resp_ie);
496 hapd->wps_probe_resp_ie = NULL;
498 hapd->drv.set_ap_wps_ie(hapd);
502 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
504 const u8 **uuid = ctx;
509 for (j = 0; j < iface->num_bss; j++) {
510 struct hostapd_data *hapd = iface->bss[j];
511 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) {
512 *uuid = hapd->wps->uuid;
521 static const u8 * get_own_uuid(struct hostapd_iface *iface)
524 if (iface->for_each_interface == NULL)
527 iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid);
532 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
540 static int interface_count(struct hostapd_iface *iface)
543 iface->for_each_interface(iface->interfaces, count_interface_cb,
549 int hostapd_init_wps(struct hostapd_data *hapd,
550 struct hostapd_bss_config *conf)
552 struct wps_context *wps;
553 struct wps_registrar_config cfg;
555 if (conf->wps_state == 0) {
556 hostapd_wps_clear_ies(hapd);
560 wps = os_zalloc(sizeof(*wps));
564 wps->cred_cb = hostapd_wps_cred_cb;
565 wps->event_cb = hostapd_wps_event_cb;
568 os_memset(&cfg, 0, sizeof(cfg));
569 wps->wps_state = hapd->conf->wps_state;
570 wps->ap_setup_locked = hapd->conf->ap_setup_locked;
571 if (is_nil_uuid(hapd->conf->uuid)) {
573 uuid = get_own_uuid(hapd->iface);
575 os_memcpy(wps->uuid, uuid, UUID_LEN);
576 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
577 "interface", wps->uuid, UUID_LEN);
579 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
580 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
581 "address", wps->uuid, UUID_LEN);
584 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
585 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
586 wps->uuid, UUID_LEN);
588 wps->ssid_len = hapd->conf->ssid.ssid_len;
589 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
591 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
592 wps->dev.device_name = hapd->conf->device_name ?
593 os_strdup(hapd->conf->device_name) : NULL;
594 wps->dev.manufacturer = hapd->conf->manufacturer ?
595 os_strdup(hapd->conf->manufacturer) : NULL;
596 wps->dev.model_name = hapd->conf->model_name ?
597 os_strdup(hapd->conf->model_name) : NULL;
598 wps->dev.model_number = hapd->conf->model_number ?
599 os_strdup(hapd->conf->model_number) : NULL;
600 wps->dev.serial_number = hapd->conf->serial_number ?
601 os_strdup(hapd->conf->serial_number) : NULL;
602 wps->config_methods =
603 wps_config_methods_str2bin(hapd->conf->config_methods);
604 if (hapd->conf->device_type &&
605 wps_dev_type_str2bin(hapd->conf->device_type,
606 wps->dev.pri_dev_type) < 0) {
607 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
611 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
612 wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
613 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
615 if (conf->wpa & WPA_PROTO_RSN) {
616 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
617 wps->auth_types |= WPS_AUTH_WPA2PSK;
618 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
619 wps->auth_types |= WPS_AUTH_WPA2;
621 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
622 wps->encr_types |= WPS_ENCR_AES;
623 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
624 wps->encr_types |= WPS_ENCR_TKIP;
627 if (conf->wpa & WPA_PROTO_WPA) {
628 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
629 wps->auth_types |= WPS_AUTH_WPAPSK;
630 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
631 wps->auth_types |= WPS_AUTH_WPA;
633 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
634 wps->encr_types |= WPS_ENCR_AES;
635 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
636 wps->encr_types |= WPS_ENCR_TKIP;
639 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
640 wps->encr_types |= WPS_ENCR_NONE;
641 wps->auth_types |= WPS_AUTH_OPEN;
642 } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
643 wps->encr_types |= WPS_ENCR_WEP;
644 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
645 wps->auth_types |= WPS_AUTH_OPEN;
646 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
647 wps->auth_types |= WPS_AUTH_SHARED;
648 } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
649 wps->auth_types |= WPS_AUTH_OPEN;
650 if (conf->default_wep_key_len)
651 wps->encr_types |= WPS_ENCR_WEP;
653 wps->encr_types |= WPS_ENCR_NONE;
656 if (conf->ssid.wpa_psk_file) {
657 /* Use per-device PSKs */
658 } else if (conf->ssid.wpa_passphrase) {
659 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
660 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
661 } else if (conf->ssid.wpa_psk) {
662 wps->network_key = os_malloc(2 * PMK_LEN + 1);
663 if (wps->network_key == NULL) {
667 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
668 conf->ssid.wpa_psk->psk, PMK_LEN);
669 wps->network_key_len = 2 * PMK_LEN;
670 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
671 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
672 if (wps->network_key == NULL) {
676 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
677 conf->ssid.wep.len[0]);
678 wps->network_key_len = conf->ssid.wep.len[0];
681 if (conf->ssid.wpa_psk) {
682 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
686 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
687 /* Override parameters to enable security by default */
688 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
689 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
692 wps->ap_settings = conf->ap_settings;
693 wps->ap_settings_len = conf->ap_settings_len;
695 cfg.new_psk_cb = hostapd_wps_new_psk_cb;
696 cfg.set_ie_cb = hostapd_wps_set_ie_cb;
697 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
698 cfg.reg_success_cb = hostapd_wps_reg_success_cb;
699 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
701 cfg.skip_cred_build = conf->skip_cred_build;
702 cfg.extra_cred = conf->extra_cred;
703 cfg.extra_cred_len = conf->extra_cred_len;
704 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
705 conf->skip_cred_build;
706 if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
707 cfg.static_wep_only = 1;
708 cfg.dualband = interface_count(hapd->iface) > 1;
710 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
712 wps->registrar = wps_registrar_init(wps, &cfg);
713 if (wps->registrar == NULL) {
714 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
715 os_free(wps->network_key);
720 #ifdef CONFIG_WPS_UPNP
721 wps->friendly_name = hapd->conf->friendly_name;
722 wps->manufacturer_url = hapd->conf->manufacturer_url;
723 wps->model_description = hapd->conf->model_description;
724 wps->model_url = hapd->conf->model_url;
725 wps->upc = hapd->conf->upc;
727 if (hostapd_wps_upnp_init(hapd, wps) < 0) {
728 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
729 wps_registrar_deinit(wps->registrar);
730 os_free(wps->network_key);
734 #endif /* CONFIG_WPS_UPNP */
736 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
744 void hostapd_deinit_wps(struct hostapd_data *hapd)
746 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
747 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
748 if (hapd->wps == NULL)
750 #ifdef CONFIG_WPS_UPNP
751 hostapd_wps_upnp_deinit(hapd);
752 #endif /* CONFIG_WPS_UPNP */
753 wps_registrar_deinit(hapd->wps->registrar);
754 os_free(hapd->wps->network_key);
755 wps_device_data_free(&hapd->wps->dev);
756 wpabuf_free(hapd->wps->dh_pubkey);
757 wpabuf_free(hapd->wps->dh_privkey);
758 wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
759 wpabuf_free(hapd->wps->oob_conf.dev_password);
760 wps_free_pending_msgs(hapd->wps->upnp_msgs);
763 hostapd_wps_clear_ies(hapd);
767 void hostapd_update_wps(struct hostapd_data *hapd)
769 if (hapd->wps == NULL)
771 if (hapd->conf->wps_state)
772 wps_registrar_update_ie(hapd->wps->registrar);
774 hostapd_deinit_wps(hapd);
778 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
779 const char *uuid, const char *pin, int timeout)
784 if (hapd->wps == NULL)
786 if (os_strcmp(uuid, "any") == 0)
788 else if (uuid_str2bin(uuid, u))
790 return wps_registrar_add_pin(hapd->wps->registrar, addr,
792 (const u8 *) pin, os_strlen(pin),
797 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
799 if (hapd->wps == NULL)
801 return wps_registrar_button_pushed(hapd->wps->registrar);
805 #ifdef CONFIG_WPS_OOB
806 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
807 char *path, char *method, char *name)
809 struct wps_context *wps = hapd->wps;
810 struct oob_device_data *oob_dev;
812 oob_dev = wps_get_oob_device(device_type);
815 oob_dev->device_path = path;
816 oob_dev->device_name = name;
817 wps->oob_conf.oob_method = wps_get_oob_method(method);
819 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
821 * Use pre-configured DH keys in order to be able to write the
822 * key hash into the OOB file.
824 wpabuf_free(wps->dh_pubkey);
825 wpabuf_free(wps->dh_privkey);
826 wps->dh_privkey = NULL;
827 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
829 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
830 if (wps->dh_pubkey == NULL) {
831 wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
832 "Diffie-Hellman handshake");
837 if (wps_process_oob(wps, oob_dev, 1) < 0)
840 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
841 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
842 hostapd_wps_add_pin(hapd, NULL, "any",
843 wpabuf_head(wps->oob_conf.dev_password), 0) <
850 wpabuf_free(wps->dh_pubkey);
851 wps->dh_pubkey = NULL;
852 wpabuf_free(wps->dh_privkey);
853 wps->dh_privkey = NULL;
856 #endif /* CONFIG_WPS_OOB */
859 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
860 const u8 *ie, size_t ie_len)
862 struct hostapd_data *hapd = ctx;
863 struct wpabuf *wps_ie;
864 struct ieee802_11_elems elems;
866 if (hapd->wps == NULL)
869 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
870 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
871 MACSTR, MAC2STR(addr));
875 if (elems.ssid && elems.ssid_len > 0 &&
876 (elems.ssid_len != hapd->conf->ssid.ssid_len ||
877 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
879 return 0; /* Not for us */
881 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
884 if (wps_validate_probe_req(wps_ie, addr) < 0) {
889 if (wpabuf_len(wps_ie) > 0) {
890 int p2p_wildcard = 0;
892 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
893 os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
894 P2P_WILDCARD_SSID_LEN) == 0)
896 #endif /* CONFIG_P2P */
897 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
899 #ifdef CONFIG_WPS_UPNP
900 /* FIX: what exactly should be included in the WLANEvent?
901 * WPS attributes? Full ProbeReq frame? */
903 upnp_wps_device_send_wlan_event(
904 hapd->wps_upnp, addr,
905 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
906 #endif /* CONFIG_WPS_UPNP */
915 #ifdef CONFIG_WPS_UPNP
917 static int hostapd_rx_req_put_wlan_response(
918 void *priv, enum upnp_wps_wlanevent_type ev_type,
919 const u8 *mac_addr, const struct wpabuf *msg,
920 enum wps_msg_type msg_type)
922 struct hostapd_data *hapd = priv;
923 struct sta_info *sta;
924 struct upnp_pending_message *p;
926 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
927 MACSTR, ev_type, MAC2STR(mac_addr));
928 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
929 wpabuf_head(msg), wpabuf_len(msg));
930 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
931 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
932 "PutWLANResponse WLANEventType %d", ev_type);
937 * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
938 * server implementation for delivery to the peer.
941 sta = ap_get_sta(hapd, mac_addr);
942 #ifndef CONFIG_WPS_STRICT
945 * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
946 * Pick STA that is in an ongoing WPS registration without
947 * checking the MAC address.
949 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
950 "on NewWLANEventMAC; try wildcard match");
951 for (sta = hapd->sta_list; sta; sta = sta->next) {
952 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
956 #endif /* CONFIG_WPS_STRICT */
959 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
963 p = os_zalloc(sizeof(*p));
966 os_memcpy(p->addr, sta->addr, ETH_ALEN);
967 p->msg = wpabuf_dup(msg);
969 p->next = hapd->wps->upnp_msgs;
970 hapd->wps->upnp_msgs = p;
972 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
976 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
977 struct wps_context *wps)
979 struct upnp_wps_device_ctx *ctx;
981 if (!hapd->conf->upnp_iface)
983 ctx = os_zalloc(sizeof(*ctx));
987 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
988 if (hapd->conf->ap_pin)
989 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
991 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
992 if (hapd->wps_upnp == NULL) {
996 wps->wps_upnp = hapd->wps_upnp;
998 if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
999 upnp_wps_device_deinit(hapd->wps_upnp);
1000 hapd->wps_upnp = NULL;
1008 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1010 upnp_wps_device_deinit(hapd->wps_upnp);
1013 #endif /* CONFIG_WPS_UPNP */
1016 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1017 char *buf, size_t buflen)
1019 if (hapd->wps == NULL)
1021 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1025 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1027 struct hostapd_data *hapd = eloop_data;
1028 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1029 hostapd_wps_ap_pin_disable(hapd);
1033 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1035 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1036 hapd->ap_pin_failures = 0;
1037 hapd->conf->ap_setup_locked = 0;
1038 if (hapd->wps->ap_setup_locked) {
1039 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1040 hapd->wps->ap_setup_locked = 0;
1041 wps_registrar_update_ie(hapd->wps->registrar);
1043 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1045 eloop_register_timeout(timeout, 0,
1046 hostapd_wps_ap_pin_timeout, hapd, NULL);
1050 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1052 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1053 os_free(hapd->conf->ap_pin);
1054 hapd->conf->ap_pin = NULL;
1055 #ifdef CONFIG_WPS_UPNP
1056 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1057 #endif /* CONFIG_WPS_UPNP */
1058 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1062 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1067 pin = wps_generate_pin();
1068 os_snprintf(pin_txt, sizeof(pin_txt), "%u", pin);
1069 os_free(hapd->conf->ap_pin);
1070 hapd->conf->ap_pin = os_strdup(pin_txt);
1071 #ifdef CONFIG_WPS_UPNP
1072 upnp_wps_set_ap_pin(hapd->wps_upnp, pin_txt);
1073 #endif /* CONFIG_WPS_UPNP */
1074 hostapd_wps_ap_pin_enable(hapd, timeout);
1075 return hapd->conf->ap_pin;
1079 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1081 return hapd->conf->ap_pin;
1085 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1088 os_free(hapd->conf->ap_pin);
1089 hapd->conf->ap_pin = os_strdup(pin);
1090 if (hapd->conf->ap_pin == NULL)
1092 #ifdef CONFIG_WPS_UPNP
1093 upnp_wps_set_ap_pin(hapd->wps_upnp, hapd->conf->ap_pin);
1094 #endif /* CONFIG_WPS_UPNP */
1095 hostapd_wps_ap_pin_enable(hapd, timeout);