xref: /freebsd/contrib/wpa/wpa_supplicant/wps_supplicant.c (revision e28a4053b110e06768631ac8401ed4a3c05e68a5)
139beb93cSSam Leffler /*
239beb93cSSam Leffler  * wpa_supplicant / WPS integration
3*e28a4053SRui Paulo  * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
439beb93cSSam Leffler  *
539beb93cSSam Leffler  * This program is free software; you can redistribute it and/or modify
639beb93cSSam Leffler  * it under the terms of the GNU General Public License version 2 as
739beb93cSSam Leffler  * published by the Free Software Foundation.
839beb93cSSam Leffler  *
939beb93cSSam Leffler  * Alternatively, this software may be distributed under the terms of BSD
1039beb93cSSam Leffler  * license.
1139beb93cSSam Leffler  *
1239beb93cSSam Leffler  * See README and COPYING for more details.
1339beb93cSSam Leffler  */
1439beb93cSSam Leffler 
1539beb93cSSam Leffler #include "includes.h"
1639beb93cSSam Leffler 
1739beb93cSSam Leffler #include "common.h"
1839beb93cSSam Leffler #include "eloop.h"
1939beb93cSSam Leffler #include "uuid.h"
20*e28a4053SRui Paulo #include "crypto/dh_group5.h"
21*e28a4053SRui Paulo #include "common/ieee802_11_defs.h"
22*e28a4053SRui Paulo #include "common/ieee802_11_common.h"
23*e28a4053SRui Paulo #include "common/wpa_common.h"
24*e28a4053SRui Paulo #include "common/wpa_ctrl.h"
2539beb93cSSam Leffler #include "eap_common/eap_wsc_common.h"
26*e28a4053SRui Paulo #include "eap_peer/eap.h"
27*e28a4053SRui Paulo #include "rsn_supp/wpa.h"
28*e28a4053SRui Paulo #include "config.h"
29*e28a4053SRui Paulo #include "wpa_supplicant_i.h"
30*e28a4053SRui Paulo #include "driver_i.h"
31*e28a4053SRui Paulo #include "notify.h"
3239beb93cSSam Leffler #include "blacklist.h"
33*e28a4053SRui Paulo #include "bss.h"
34*e28a4053SRui Paulo #include "scan.h"
3539beb93cSSam Leffler #include "wps_supplicant.h"
3639beb93cSSam Leffler 
373157ba21SRui Paulo 
3839beb93cSSam Leffler #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
3939beb93cSSam Leffler 
4039beb93cSSam Leffler static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
4139beb93cSSam Leffler static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
4239beb93cSSam Leffler 
4339beb93cSSam Leffler 
4439beb93cSSam Leffler int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
4539beb93cSSam Leffler {
4639beb93cSSam Leffler 	if (!wpa_s->wps_success &&
4739beb93cSSam Leffler 	    wpa_s->current_ssid &&
4839beb93cSSam Leffler 	    eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
4939beb93cSSam Leffler 		const u8 *bssid = wpa_s->bssid;
5039beb93cSSam Leffler 		if (is_zero_ether_addr(bssid))
5139beb93cSSam Leffler 			bssid = wpa_s->pending_bssid;
5239beb93cSSam Leffler 
5339beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
5439beb93cSSam Leffler 			   " did not succeed - continue trying to find "
5539beb93cSSam Leffler 			   "suitable AP", MAC2STR(bssid));
5639beb93cSSam Leffler 		wpa_blacklist_add(wpa_s, bssid);
5739beb93cSSam Leffler 
5839beb93cSSam Leffler 		wpa_supplicant_deauthenticate(wpa_s,
5939beb93cSSam Leffler 					      WLAN_REASON_DEAUTH_LEAVING);
6039beb93cSSam Leffler 		wpa_s->reassociate = 1;
6139beb93cSSam Leffler 		wpa_supplicant_req_scan(wpa_s,
6239beb93cSSam Leffler 					wpa_s->blacklist_cleared ? 5 : 0, 0);
6339beb93cSSam Leffler 		wpa_s->blacklist_cleared = 0;
6439beb93cSSam Leffler 		return 1;
6539beb93cSSam Leffler 	}
6639beb93cSSam Leffler 
6739beb93cSSam Leffler 	eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
6839beb93cSSam Leffler 
6939beb93cSSam Leffler 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
7039beb93cSSam Leffler 	    !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
7139beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
7239beb93cSSam Leffler 			   "try to associate with the received credential");
7339beb93cSSam Leffler 		wpa_supplicant_deauthenticate(wpa_s,
7439beb93cSSam Leffler 					      WLAN_REASON_DEAUTH_LEAVING);
75*e28a4053SRui Paulo 		wpa_s->after_wps = 5;
76*e28a4053SRui Paulo 		wpa_s->wps_freq = wpa_s->assoc_freq;
7739beb93cSSam Leffler 		wpa_s->reassociate = 1;
7839beb93cSSam Leffler 		wpa_supplicant_req_scan(wpa_s, 0, 0);
7939beb93cSSam Leffler 		return 1;
8039beb93cSSam Leffler 	}
8139beb93cSSam Leffler 
8239beb93cSSam Leffler 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
8339beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
8439beb93cSSam Leffler 			   "for external credential processing");
8539beb93cSSam Leffler 		wpas_clear_wps(wpa_s);
8639beb93cSSam Leffler 		wpa_supplicant_deauthenticate(wpa_s,
8739beb93cSSam Leffler 					      WLAN_REASON_DEAUTH_LEAVING);
8839beb93cSSam Leffler 		return 1;
8939beb93cSSam Leffler 	}
9039beb93cSSam Leffler 
9139beb93cSSam Leffler 	return 0;
9239beb93cSSam Leffler }
9339beb93cSSam Leffler 
9439beb93cSSam Leffler 
953157ba21SRui Paulo static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
963157ba21SRui Paulo 					 struct wpa_ssid *ssid,
973157ba21SRui Paulo 					 const struct wps_credential *cred)
983157ba21SRui Paulo {
993157ba21SRui Paulo 	struct wpa_driver_capa capa;
100*e28a4053SRui Paulo 	struct wpa_bss *bss;
1013157ba21SRui Paulo 	const u8 *ie;
1023157ba21SRui Paulo 	struct wpa_ie_data adv;
1033157ba21SRui Paulo 	int wpa2 = 0, ccmp = 0;
1043157ba21SRui Paulo 
1053157ba21SRui Paulo 	/*
1063157ba21SRui Paulo 	 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
1073157ba21SRui Paulo 	 * case they are configured for mixed mode operation (WPA+WPA2 and
1083157ba21SRui Paulo 	 * TKIP+CCMP). Try to use scan results to figure out whether the AP
1093157ba21SRui Paulo 	 * actually supports stronger security and select that if the client
1103157ba21SRui Paulo 	 * has support for it, too.
1113157ba21SRui Paulo 	 */
1123157ba21SRui Paulo 
1133157ba21SRui Paulo 	if (wpa_drv_get_capa(wpa_s, &capa))
1143157ba21SRui Paulo 		return; /* Unknown what driver supports */
1153157ba21SRui Paulo 
116*e28a4053SRui Paulo 	bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
117*e28a4053SRui Paulo 	if (bss == NULL) {
118*e28a4053SRui Paulo 		wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
119*e28a4053SRui Paulo 			   "table - use credential as-is");
1203157ba21SRui Paulo 		return;
1213157ba21SRui Paulo 	}
1223157ba21SRui Paulo 
123*e28a4053SRui Paulo 	wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
124*e28a4053SRui Paulo 
125*e28a4053SRui Paulo 	ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1263157ba21SRui Paulo 	if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
1273157ba21SRui Paulo 		wpa2 = 1;
1283157ba21SRui Paulo 		if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
1293157ba21SRui Paulo 			ccmp = 1;
1303157ba21SRui Paulo 	} else {
131*e28a4053SRui Paulo 		ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1323157ba21SRui Paulo 		if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
1333157ba21SRui Paulo 		    adv.pairwise_cipher & WPA_CIPHER_CCMP)
1343157ba21SRui Paulo 			ccmp = 1;
1353157ba21SRui Paulo 	}
1363157ba21SRui Paulo 
1373157ba21SRui Paulo 	if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
1383157ba21SRui Paulo 	    (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
1393157ba21SRui Paulo 		/*
1403157ba21SRui Paulo 		 * TODO: This could be the initial AP configuration and the
1413157ba21SRui Paulo 		 * Beacon contents could change shortly. Should request a new
1423157ba21SRui Paulo 		 * scan and delay addition of the network until the updated
1433157ba21SRui Paulo 		 * scan results are available.
1443157ba21SRui Paulo 		 */
1453157ba21SRui Paulo 		wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
1463157ba21SRui Paulo 			   "support - use credential as-is");
1473157ba21SRui Paulo 		return;
1483157ba21SRui Paulo 	}
1493157ba21SRui Paulo 
1503157ba21SRui Paulo 	if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
1513157ba21SRui Paulo 	    (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
1523157ba21SRui Paulo 	    (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1533157ba21SRui Paulo 		wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
1543157ba21SRui Paulo 			   "based on scan results");
1553157ba21SRui Paulo 		if (wpa_s->conf->ap_scan == 1)
1563157ba21SRui Paulo 			ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
1573157ba21SRui Paulo 		else
1583157ba21SRui Paulo 			ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1593157ba21SRui Paulo 	}
1603157ba21SRui Paulo 
1613157ba21SRui Paulo 	if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
1623157ba21SRui Paulo 	    (ssid->proto & WPA_PROTO_WPA) &&
1633157ba21SRui Paulo 	    (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
1643157ba21SRui Paulo 		wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
1653157ba21SRui Paulo 			   "based on scan results");
1663157ba21SRui Paulo 		if (wpa_s->conf->ap_scan == 1)
1673157ba21SRui Paulo 			ssid->proto |= WPA_PROTO_RSN;
1683157ba21SRui Paulo 		else
1693157ba21SRui Paulo 			ssid->proto = WPA_PROTO_RSN;
1703157ba21SRui Paulo 	}
1713157ba21SRui Paulo }
1723157ba21SRui Paulo 
1733157ba21SRui Paulo 
17439beb93cSSam Leffler static int wpa_supplicant_wps_cred(void *ctx,
17539beb93cSSam Leffler 				   const struct wps_credential *cred)
17639beb93cSSam Leffler {
17739beb93cSSam Leffler 	struct wpa_supplicant *wpa_s = ctx;
17839beb93cSSam Leffler 	struct wpa_ssid *ssid = wpa_s->current_ssid;
1793157ba21SRui Paulo 	u8 key_idx = 0;
1803157ba21SRui Paulo 	u16 auth_type;
18139beb93cSSam Leffler 
18239beb93cSSam Leffler 	if ((wpa_s->conf->wps_cred_processing == 1 ||
18339beb93cSSam Leffler 	     wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
18439beb93cSSam Leffler 		size_t blen = cred->cred_attr_len * 2 + 1;
18539beb93cSSam Leffler 		char *buf = os_malloc(blen);
18639beb93cSSam Leffler 		if (buf) {
18739beb93cSSam Leffler 			wpa_snprintf_hex(buf, blen,
18839beb93cSSam Leffler 					 cred->cred_attr, cred->cred_attr_len);
18939beb93cSSam Leffler 			wpa_msg(wpa_s, MSG_INFO, "%s%s",
19039beb93cSSam Leffler 				WPS_EVENT_CRED_RECEIVED, buf);
19139beb93cSSam Leffler 			os_free(buf);
19239beb93cSSam Leffler 		}
193*e28a4053SRui Paulo 
194*e28a4053SRui Paulo 		wpas_notify_wps_credential(wpa_s, cred);
19539beb93cSSam Leffler 	} else
19639beb93cSSam Leffler 		wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
19739beb93cSSam Leffler 
19839beb93cSSam Leffler 	wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
19939beb93cSSam Leffler 			cred->cred_attr, cred->cred_attr_len);
20039beb93cSSam Leffler 
20139beb93cSSam Leffler 	if (wpa_s->conf->wps_cred_processing == 1)
20239beb93cSSam Leffler 		return 0;
20339beb93cSSam Leffler 
2043157ba21SRui Paulo 	wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
2053157ba21SRui Paulo 	wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
20639beb93cSSam Leffler 		   cred->auth_type);
2073157ba21SRui Paulo 	wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
2083157ba21SRui Paulo 	wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
2093157ba21SRui Paulo 	wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
2103157ba21SRui Paulo 			cred->key, cred->key_len);
2113157ba21SRui Paulo 	wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
2123157ba21SRui Paulo 		   MAC2STR(cred->mac_addr));
2133157ba21SRui Paulo 
2143157ba21SRui Paulo 	auth_type = cred->auth_type;
2153157ba21SRui Paulo 	if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
2163157ba21SRui Paulo 		wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
2173157ba21SRui Paulo 			   "auth_type into WPA2PSK");
2183157ba21SRui Paulo 		auth_type = WPS_AUTH_WPA2PSK;
2193157ba21SRui Paulo 	}
2203157ba21SRui Paulo 
2213157ba21SRui Paulo 	if (auth_type != WPS_AUTH_OPEN &&
2223157ba21SRui Paulo 	    auth_type != WPS_AUTH_SHARED &&
2233157ba21SRui Paulo 	    auth_type != WPS_AUTH_WPAPSK &&
2243157ba21SRui Paulo 	    auth_type != WPS_AUTH_WPA2PSK) {
2253157ba21SRui Paulo 		wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
2263157ba21SRui Paulo 			   "unsupported authentication type 0x%x",
2273157ba21SRui Paulo 			   auth_type);
22839beb93cSSam Leffler 		return 0;
22939beb93cSSam Leffler 	}
23039beb93cSSam Leffler 
23139beb93cSSam Leffler 	if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
23239beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
23339beb93cSSam Leffler 			   "on the received credential");
23439beb93cSSam Leffler 		os_free(ssid->eap.identity);
23539beb93cSSam Leffler 		ssid->eap.identity = NULL;
23639beb93cSSam Leffler 		ssid->eap.identity_len = 0;
23739beb93cSSam Leffler 		os_free(ssid->eap.phase1);
23839beb93cSSam Leffler 		ssid->eap.phase1 = NULL;
23939beb93cSSam Leffler 		os_free(ssid->eap.eap_methods);
24039beb93cSSam Leffler 		ssid->eap.eap_methods = NULL;
24139beb93cSSam Leffler 	} else {
24239beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
24339beb93cSSam Leffler 			   "received credential");
24439beb93cSSam Leffler 		ssid = wpa_config_add_network(wpa_s->conf);
24539beb93cSSam Leffler 		if (ssid == NULL)
24639beb93cSSam Leffler 			return -1;
247*e28a4053SRui Paulo 		wpas_notify_network_added(wpa_s, ssid);
24839beb93cSSam Leffler 	}
24939beb93cSSam Leffler 
25039beb93cSSam Leffler 	wpa_config_set_network_defaults(ssid);
25139beb93cSSam Leffler 
25239beb93cSSam Leffler 	os_free(ssid->ssid);
25339beb93cSSam Leffler 	ssid->ssid = os_malloc(cred->ssid_len);
25439beb93cSSam Leffler 	if (ssid->ssid) {
25539beb93cSSam Leffler 		os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
25639beb93cSSam Leffler 		ssid->ssid_len = cred->ssid_len;
25739beb93cSSam Leffler 	}
25839beb93cSSam Leffler 
25939beb93cSSam Leffler 	switch (cred->encr_type) {
26039beb93cSSam Leffler 	case WPS_ENCR_NONE:
26139beb93cSSam Leffler 		break;
26239beb93cSSam Leffler 	case WPS_ENCR_WEP:
2633157ba21SRui Paulo 		if (cred->key_len <= 0)
2643157ba21SRui Paulo 			break;
2653157ba21SRui Paulo 		if (cred->key_len != 5 && cred->key_len != 13 &&
2663157ba21SRui Paulo 		    cred->key_len != 10 && cred->key_len != 26) {
2673157ba21SRui Paulo 			wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
2683157ba21SRui Paulo 				   "%lu", (unsigned long) cred->key_len);
2693157ba21SRui Paulo 			return -1;
27039beb93cSSam Leffler 		}
2713157ba21SRui Paulo 		if (cred->key_idx > NUM_WEP_KEYS) {
2723157ba21SRui Paulo 			wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
2733157ba21SRui Paulo 				   cred->key_idx);
2743157ba21SRui Paulo 			return -1;
2753157ba21SRui Paulo 		}
2763157ba21SRui Paulo 		if (cred->key_idx)
2773157ba21SRui Paulo 			key_idx = cred->key_idx - 1;
2783157ba21SRui Paulo 		if (cred->key_len == 10 || cred->key_len == 26) {
2793157ba21SRui Paulo 			if (hexstr2bin((char *) cred->key,
2803157ba21SRui Paulo 				       ssid->wep_key[key_idx],
2813157ba21SRui Paulo 				       cred->key_len / 2) < 0) {
2823157ba21SRui Paulo 				wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
2833157ba21SRui Paulo 					   "%d", key_idx);
2843157ba21SRui Paulo 				return -1;
2853157ba21SRui Paulo 			}
2863157ba21SRui Paulo 			ssid->wep_key_len[key_idx] = cred->key_len / 2;
2873157ba21SRui Paulo 		} else {
2883157ba21SRui Paulo 			os_memcpy(ssid->wep_key[key_idx], cred->key,
2893157ba21SRui Paulo 				  cred->key_len);
2903157ba21SRui Paulo 			ssid->wep_key_len[key_idx] = cred->key_len;
2913157ba21SRui Paulo 		}
2923157ba21SRui Paulo 		ssid->wep_tx_keyidx = key_idx;
29339beb93cSSam Leffler 		break;
29439beb93cSSam Leffler 	case WPS_ENCR_TKIP:
29539beb93cSSam Leffler 		ssid->pairwise_cipher = WPA_CIPHER_TKIP;
29639beb93cSSam Leffler 		break;
29739beb93cSSam Leffler 	case WPS_ENCR_AES:
29839beb93cSSam Leffler 		ssid->pairwise_cipher = WPA_CIPHER_CCMP;
29939beb93cSSam Leffler 		break;
30039beb93cSSam Leffler 	}
30139beb93cSSam Leffler 
3023157ba21SRui Paulo 	switch (auth_type) {
30339beb93cSSam Leffler 	case WPS_AUTH_OPEN:
30439beb93cSSam Leffler 		ssid->auth_alg = WPA_AUTH_ALG_OPEN;
30539beb93cSSam Leffler 		ssid->key_mgmt = WPA_KEY_MGMT_NONE;
30639beb93cSSam Leffler 		ssid->proto = 0;
30739beb93cSSam Leffler 		break;
30839beb93cSSam Leffler 	case WPS_AUTH_SHARED:
30939beb93cSSam Leffler 		ssid->auth_alg = WPA_AUTH_ALG_SHARED;
31039beb93cSSam Leffler 		ssid->key_mgmt = WPA_KEY_MGMT_NONE;
31139beb93cSSam Leffler 		ssid->proto = 0;
31239beb93cSSam Leffler 		break;
31339beb93cSSam Leffler 	case WPS_AUTH_WPAPSK:
31439beb93cSSam Leffler 		ssid->auth_alg = WPA_AUTH_ALG_OPEN;
31539beb93cSSam Leffler 		ssid->key_mgmt = WPA_KEY_MGMT_PSK;
31639beb93cSSam Leffler 		ssid->proto = WPA_PROTO_WPA;
31739beb93cSSam Leffler 		break;
31839beb93cSSam Leffler 	case WPS_AUTH_WPA:
31939beb93cSSam Leffler 		ssid->auth_alg = WPA_AUTH_ALG_OPEN;
32039beb93cSSam Leffler 		ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
32139beb93cSSam Leffler 		ssid->proto = WPA_PROTO_WPA;
32239beb93cSSam Leffler 		break;
32339beb93cSSam Leffler 	case WPS_AUTH_WPA2:
32439beb93cSSam Leffler 		ssid->auth_alg = WPA_AUTH_ALG_OPEN;
32539beb93cSSam Leffler 		ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
32639beb93cSSam Leffler 		ssid->proto = WPA_PROTO_RSN;
32739beb93cSSam Leffler 		break;
32839beb93cSSam Leffler 	case WPS_AUTH_WPA2PSK:
32939beb93cSSam Leffler 		ssid->auth_alg = WPA_AUTH_ALG_OPEN;
33039beb93cSSam Leffler 		ssid->key_mgmt = WPA_KEY_MGMT_PSK;
33139beb93cSSam Leffler 		ssid->proto = WPA_PROTO_RSN;
33239beb93cSSam Leffler 		break;
33339beb93cSSam Leffler 	}
33439beb93cSSam Leffler 
33539beb93cSSam Leffler 	if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
33639beb93cSSam Leffler 		if (cred->key_len == 2 * PMK_LEN) {
33739beb93cSSam Leffler 			if (hexstr2bin((const char *) cred->key, ssid->psk,
33839beb93cSSam Leffler 				       PMK_LEN)) {
33939beb93cSSam Leffler 				wpa_printf(MSG_ERROR, "WPS: Invalid Network "
34039beb93cSSam Leffler 					   "Key");
34139beb93cSSam Leffler 				return -1;
34239beb93cSSam Leffler 			}
34339beb93cSSam Leffler 			ssid->psk_set = 1;
34439beb93cSSam Leffler 		} else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
34539beb93cSSam Leffler 			os_free(ssid->passphrase);
34639beb93cSSam Leffler 			ssid->passphrase = os_malloc(cred->key_len + 1);
34739beb93cSSam Leffler 			if (ssid->passphrase == NULL)
34839beb93cSSam Leffler 				return -1;
34939beb93cSSam Leffler 			os_memcpy(ssid->passphrase, cred->key, cred->key_len);
35039beb93cSSam Leffler 			ssid->passphrase[cred->key_len] = '\0';
35139beb93cSSam Leffler 			wpa_config_update_psk(ssid);
35239beb93cSSam Leffler 		} else {
35339beb93cSSam Leffler 			wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
35439beb93cSSam Leffler 				   "length %lu",
35539beb93cSSam Leffler 				   (unsigned long) cred->key_len);
35639beb93cSSam Leffler 			return -1;
35739beb93cSSam Leffler 		}
35839beb93cSSam Leffler 	}
35939beb93cSSam Leffler 
3603157ba21SRui Paulo 	wpas_wps_security_workaround(wpa_s, ssid, cred);
3613157ba21SRui Paulo 
36239beb93cSSam Leffler #ifndef CONFIG_NO_CONFIG_WRITE
36339beb93cSSam Leffler 	if (wpa_s->conf->update_config &&
36439beb93cSSam Leffler 	    wpa_config_write(wpa_s->confname, wpa_s->conf)) {
36539beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
36639beb93cSSam Leffler 		return -1;
36739beb93cSSam Leffler 	}
36839beb93cSSam Leffler #endif /* CONFIG_NO_CONFIG_WRITE */
36939beb93cSSam Leffler 
37039beb93cSSam Leffler 	return 0;
37139beb93cSSam Leffler }
37239beb93cSSam Leffler 
37339beb93cSSam Leffler 
37439beb93cSSam Leffler static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
37539beb93cSSam Leffler 					 struct wps_event_m2d *m2d)
37639beb93cSSam Leffler {
37739beb93cSSam Leffler 	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
37839beb93cSSam Leffler 		"dev_password_id=%d config_error=%d",
37939beb93cSSam Leffler 		m2d->dev_password_id, m2d->config_error);
380*e28a4053SRui Paulo 	wpas_notify_wps_event_m2d(wpa_s, m2d);
38139beb93cSSam Leffler }
38239beb93cSSam Leffler 
38339beb93cSSam Leffler 
38439beb93cSSam Leffler static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
38539beb93cSSam Leffler 					  struct wps_event_fail *fail)
38639beb93cSSam Leffler {
38739beb93cSSam Leffler 	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL "msg=%d", fail->msg);
38839beb93cSSam Leffler 	wpas_clear_wps(wpa_s);
389*e28a4053SRui Paulo 	wpas_notify_wps_event_fail(wpa_s, fail);
39039beb93cSSam Leffler }
39139beb93cSSam Leffler 
39239beb93cSSam Leffler 
39339beb93cSSam Leffler static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
39439beb93cSSam Leffler {
39539beb93cSSam Leffler 	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
39639beb93cSSam Leffler 	wpa_s->wps_success = 1;
397*e28a4053SRui Paulo 	wpas_notify_wps_event_success(wpa_s);
398*e28a4053SRui Paulo }
399*e28a4053SRui Paulo 
400*e28a4053SRui Paulo 
401*e28a4053SRui Paulo static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
402*e28a4053SRui Paulo 					       struct wps_event_er_ap *ap)
403*e28a4053SRui Paulo {
404*e28a4053SRui Paulo 	char uuid_str[100];
405*e28a4053SRui Paulo 	char dev_type[WPS_DEV_TYPE_BUFSIZE];
406*e28a4053SRui Paulo 
407*e28a4053SRui Paulo 	uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
408*e28a4053SRui Paulo 	if (ap->pri_dev_type)
409*e28a4053SRui Paulo 		wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
410*e28a4053SRui Paulo 				     sizeof(dev_type));
411*e28a4053SRui Paulo 	else
412*e28a4053SRui Paulo 		dev_type[0] = '\0';
413*e28a4053SRui Paulo 
414*e28a4053SRui Paulo 	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
415*e28a4053SRui Paulo 		" pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
416*e28a4053SRui Paulo 		uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
417*e28a4053SRui Paulo 		ap->friendly_name ? ap->friendly_name : "",
418*e28a4053SRui Paulo 		ap->manufacturer ? ap->manufacturer : "",
419*e28a4053SRui Paulo 		ap->model_description ? ap->model_description : "",
420*e28a4053SRui Paulo 		ap->model_name ? ap->model_name : "",
421*e28a4053SRui Paulo 		ap->manufacturer_url ? ap->manufacturer_url : "",
422*e28a4053SRui Paulo 		ap->model_url ? ap->model_url : "");
423*e28a4053SRui Paulo }
424*e28a4053SRui Paulo 
425*e28a4053SRui Paulo 
426*e28a4053SRui Paulo static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
427*e28a4053SRui Paulo 						  struct wps_event_er_ap *ap)
428*e28a4053SRui Paulo {
429*e28a4053SRui Paulo 	char uuid_str[100];
430*e28a4053SRui Paulo 	uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
431*e28a4053SRui Paulo 	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
432*e28a4053SRui Paulo }
433*e28a4053SRui Paulo 
434*e28a4053SRui Paulo 
435*e28a4053SRui Paulo static void wpa_supplicant_wps_event_er_enrollee_add(
436*e28a4053SRui Paulo 	struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
437*e28a4053SRui Paulo {
438*e28a4053SRui Paulo 	char uuid_str[100];
439*e28a4053SRui Paulo 	char dev_type[WPS_DEV_TYPE_BUFSIZE];
440*e28a4053SRui Paulo 
441*e28a4053SRui Paulo 	uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
442*e28a4053SRui Paulo 	if (enrollee->pri_dev_type)
443*e28a4053SRui Paulo 		wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
444*e28a4053SRui Paulo 				     sizeof(dev_type));
445*e28a4053SRui Paulo 	else
446*e28a4053SRui Paulo 		dev_type[0] = '\0';
447*e28a4053SRui Paulo 
448*e28a4053SRui Paulo 	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
449*e28a4053SRui Paulo 		" M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
450*e28a4053SRui Paulo 		"|%s|%s|%s|%s|%s|",
451*e28a4053SRui Paulo 		uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
452*e28a4053SRui Paulo 		enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
453*e28a4053SRui Paulo 		enrollee->dev_name ? enrollee->dev_name : "",
454*e28a4053SRui Paulo 		enrollee->manufacturer ? enrollee->manufacturer : "",
455*e28a4053SRui Paulo 		enrollee->model_name ? enrollee->model_name : "",
456*e28a4053SRui Paulo 		enrollee->model_number ? enrollee->model_number : "",
457*e28a4053SRui Paulo 		enrollee->serial_number ? enrollee->serial_number : "");
458*e28a4053SRui Paulo }
459*e28a4053SRui Paulo 
460*e28a4053SRui Paulo 
461*e28a4053SRui Paulo static void wpa_supplicant_wps_event_er_enrollee_remove(
462*e28a4053SRui Paulo 	struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
463*e28a4053SRui Paulo {
464*e28a4053SRui Paulo 	char uuid_str[100];
465*e28a4053SRui Paulo 	uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
466*e28a4053SRui Paulo 	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
467*e28a4053SRui Paulo 		uuid_str, MAC2STR(enrollee->mac_addr));
46839beb93cSSam Leffler }
46939beb93cSSam Leffler 
47039beb93cSSam Leffler 
47139beb93cSSam Leffler static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
47239beb93cSSam Leffler 				     union wps_event_data *data)
47339beb93cSSam Leffler {
47439beb93cSSam Leffler 	struct wpa_supplicant *wpa_s = ctx;
47539beb93cSSam Leffler 	switch (event) {
47639beb93cSSam Leffler 	case WPS_EV_M2D:
47739beb93cSSam Leffler 		wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
47839beb93cSSam Leffler 		break;
47939beb93cSSam Leffler 	case WPS_EV_FAIL:
48039beb93cSSam Leffler 		wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
48139beb93cSSam Leffler 		break;
48239beb93cSSam Leffler 	case WPS_EV_SUCCESS:
48339beb93cSSam Leffler 		wpa_supplicant_wps_event_success(wpa_s);
48439beb93cSSam Leffler 		break;
48539beb93cSSam Leffler 	case WPS_EV_PWD_AUTH_FAIL:
48639beb93cSSam Leffler 		break;
4873157ba21SRui Paulo 	case WPS_EV_PBC_OVERLAP:
4883157ba21SRui Paulo 		break;
4893157ba21SRui Paulo 	case WPS_EV_PBC_TIMEOUT:
4903157ba21SRui Paulo 		break;
491*e28a4053SRui Paulo 	case WPS_EV_ER_AP_ADD:
492*e28a4053SRui Paulo 		wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
493*e28a4053SRui Paulo 		break;
494*e28a4053SRui Paulo 	case WPS_EV_ER_AP_REMOVE:
495*e28a4053SRui Paulo 		wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
496*e28a4053SRui Paulo 		break;
497*e28a4053SRui Paulo 	case WPS_EV_ER_ENROLLEE_ADD:
498*e28a4053SRui Paulo 		wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
499*e28a4053SRui Paulo 							 &data->enrollee);
500*e28a4053SRui Paulo 		break;
501*e28a4053SRui Paulo 	case WPS_EV_ER_ENROLLEE_REMOVE:
502*e28a4053SRui Paulo 		wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
503*e28a4053SRui Paulo 							    &data->enrollee);
504*e28a4053SRui Paulo 		break;
50539beb93cSSam Leffler 	}
50639beb93cSSam Leffler }
50739beb93cSSam Leffler 
50839beb93cSSam Leffler 
50939beb93cSSam Leffler enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
51039beb93cSSam Leffler {
51139beb93cSSam Leffler 	if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
51239beb93cSSam Leffler 	    eap_is_wps_pin_enrollee(&ssid->eap))
51339beb93cSSam Leffler 		return WPS_REQ_ENROLLEE;
51439beb93cSSam Leffler 	else
51539beb93cSSam Leffler 		return WPS_REQ_REGISTRAR;
51639beb93cSSam Leffler }
51739beb93cSSam Leffler 
51839beb93cSSam Leffler 
51939beb93cSSam Leffler static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
52039beb93cSSam Leffler {
52139beb93cSSam Leffler 	int id;
522*e28a4053SRui Paulo 	struct wpa_ssid *ssid, *remove_ssid = NULL;
52339beb93cSSam Leffler 
52439beb93cSSam Leffler 	eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
52539beb93cSSam Leffler 
52639beb93cSSam Leffler 	/* Remove any existing WPS network from configuration */
52739beb93cSSam Leffler 	ssid = wpa_s->conf->ssid;
52839beb93cSSam Leffler 	while (ssid) {
52939beb93cSSam Leffler 		if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
530*e28a4053SRui Paulo 			if (ssid == wpa_s->current_ssid) {
53139beb93cSSam Leffler 				wpa_s->current_ssid = NULL;
532*e28a4053SRui Paulo 				if (ssid != NULL)
533*e28a4053SRui Paulo 					wpas_notify_network_changed(wpa_s);
534*e28a4053SRui Paulo 			}
53539beb93cSSam Leffler 			id = ssid->id;
536*e28a4053SRui Paulo 			remove_ssid = ssid;
53739beb93cSSam Leffler 		} else
53839beb93cSSam Leffler 			id = -1;
53939beb93cSSam Leffler 		ssid = ssid->next;
540*e28a4053SRui Paulo 		if (id >= 0) {
541*e28a4053SRui Paulo 			wpas_notify_network_removed(wpa_s, remove_ssid);
54239beb93cSSam Leffler 			wpa_config_remove_network(wpa_s->conf, id);
54339beb93cSSam Leffler 		}
54439beb93cSSam Leffler 	}
545*e28a4053SRui Paulo }
54639beb93cSSam Leffler 
54739beb93cSSam Leffler 
54839beb93cSSam Leffler static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
54939beb93cSSam Leffler {
55039beb93cSSam Leffler 	struct wpa_supplicant *wpa_s = eloop_ctx;
55139beb93cSSam Leffler 	wpa_printf(MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
55239beb93cSSam Leffler 		   "out");
55339beb93cSSam Leffler 	wpas_clear_wps(wpa_s);
55439beb93cSSam Leffler }
55539beb93cSSam Leffler 
55639beb93cSSam Leffler 
55739beb93cSSam Leffler static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
55839beb93cSSam Leffler 					      int registrar, const u8 *bssid)
55939beb93cSSam Leffler {
56039beb93cSSam Leffler 	struct wpa_ssid *ssid;
56139beb93cSSam Leffler 
56239beb93cSSam Leffler 	ssid = wpa_config_add_network(wpa_s->conf);
56339beb93cSSam Leffler 	if (ssid == NULL)
56439beb93cSSam Leffler 		return NULL;
565*e28a4053SRui Paulo 	wpas_notify_network_added(wpa_s, ssid);
56639beb93cSSam Leffler 	wpa_config_set_network_defaults(ssid);
56739beb93cSSam Leffler 	if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
56839beb93cSSam Leffler 	    wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
56939beb93cSSam Leffler 	    wpa_config_set(ssid, "identity", registrar ?
57039beb93cSSam Leffler 			   "\"" WSC_ID_REGISTRAR "\"" :
57139beb93cSSam Leffler 			   "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
572*e28a4053SRui Paulo 		wpas_notify_network_removed(wpa_s, ssid);
57339beb93cSSam Leffler 		wpa_config_remove_network(wpa_s->conf, ssid->id);
57439beb93cSSam Leffler 		return NULL;
57539beb93cSSam Leffler 	}
57639beb93cSSam Leffler 
57739beb93cSSam Leffler 	if (bssid) {
578*e28a4053SRui Paulo 		struct wpa_bss *bss;
5793157ba21SRui Paulo 		int count = 0;
58039beb93cSSam Leffler 
58139beb93cSSam Leffler 		os_memcpy(ssid->bssid, bssid, ETH_ALEN);
58239beb93cSSam Leffler 		ssid->bssid_set = 1;
58339beb93cSSam Leffler 
584*e28a4053SRui Paulo 		dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
585*e28a4053SRui Paulo 			if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
58639beb93cSSam Leffler 				continue;
58739beb93cSSam Leffler 
58839beb93cSSam Leffler 			os_free(ssid->ssid);
589*e28a4053SRui Paulo 			ssid->ssid = os_malloc(bss->ssid_len);
59039beb93cSSam Leffler 			if (ssid->ssid == NULL)
59139beb93cSSam Leffler 				break;
592*e28a4053SRui Paulo 			os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
593*e28a4053SRui Paulo 			ssid->ssid_len = bss->ssid_len;
5943157ba21SRui Paulo 			wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
5953157ba21SRui Paulo 					  "scan results",
5963157ba21SRui Paulo 					  ssid->ssid, ssid->ssid_len);
5973157ba21SRui Paulo 			count++;
5983157ba21SRui Paulo 		}
5993157ba21SRui Paulo 
6003157ba21SRui Paulo 		if (count > 1) {
6013157ba21SRui Paulo 			wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
6023157ba21SRui Paulo 				   "for the AP; use wildcard");
6033157ba21SRui Paulo 			os_free(ssid->ssid);
6043157ba21SRui Paulo 			ssid->ssid = NULL;
6053157ba21SRui Paulo 			ssid->ssid_len = 0;
60639beb93cSSam Leffler 		}
60739beb93cSSam Leffler 	}
60839beb93cSSam Leffler 
60939beb93cSSam Leffler 	return ssid;
61039beb93cSSam Leffler }
61139beb93cSSam Leffler 
61239beb93cSSam Leffler 
61339beb93cSSam Leffler static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
61439beb93cSSam Leffler 			     struct wpa_ssid *selected)
61539beb93cSSam Leffler {
61639beb93cSSam Leffler 	struct wpa_ssid *ssid;
61739beb93cSSam Leffler 
61839beb93cSSam Leffler 	/* Mark all other networks disabled and trigger reassociation */
61939beb93cSSam Leffler 	ssid = wpa_s->conf->ssid;
62039beb93cSSam Leffler 	while (ssid) {
621*e28a4053SRui Paulo 		int was_disabled = ssid->disabled;
62239beb93cSSam Leffler 		ssid->disabled = ssid != selected;
623*e28a4053SRui Paulo 		if (was_disabled != ssid->disabled)
624*e28a4053SRui Paulo 			wpas_notify_network_enabled_changed(wpa_s, ssid);
62539beb93cSSam Leffler 		ssid = ssid->next;
62639beb93cSSam Leffler 	}
62739beb93cSSam Leffler 	wpa_s->disconnected = 0;
62839beb93cSSam Leffler 	wpa_s->reassociate = 1;
62939beb93cSSam Leffler 	wpa_s->scan_runs = 0;
63039beb93cSSam Leffler 	wpa_s->wps_success = 0;
63139beb93cSSam Leffler 	wpa_s->blacklist_cleared = 0;
63239beb93cSSam Leffler 	wpa_supplicant_req_scan(wpa_s, 0, 0);
63339beb93cSSam Leffler }
63439beb93cSSam Leffler 
63539beb93cSSam Leffler 
63639beb93cSSam Leffler int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
63739beb93cSSam Leffler {
63839beb93cSSam Leffler 	struct wpa_ssid *ssid;
63939beb93cSSam Leffler 	wpas_clear_wps(wpa_s);
64039beb93cSSam Leffler 	ssid = wpas_wps_add_network(wpa_s, 0, bssid);
64139beb93cSSam Leffler 	if (ssid == NULL)
64239beb93cSSam Leffler 		return -1;
64339beb93cSSam Leffler 	wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
64439beb93cSSam Leffler 	eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
64539beb93cSSam Leffler 			       wpa_s, NULL);
64639beb93cSSam Leffler 	wpas_wps_reassoc(wpa_s, ssid);
64739beb93cSSam Leffler 	return 0;
64839beb93cSSam Leffler }
64939beb93cSSam Leffler 
65039beb93cSSam Leffler 
65139beb93cSSam Leffler int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
65239beb93cSSam Leffler 		       const char *pin)
65339beb93cSSam Leffler {
65439beb93cSSam Leffler 	struct wpa_ssid *ssid;
655*e28a4053SRui Paulo 	char val[128];
65639beb93cSSam Leffler 	unsigned int rpin = 0;
65739beb93cSSam Leffler 
65839beb93cSSam Leffler 	wpas_clear_wps(wpa_s);
65939beb93cSSam Leffler 	ssid = wpas_wps_add_network(wpa_s, 0, bssid);
66039beb93cSSam Leffler 	if (ssid == NULL)
66139beb93cSSam Leffler 		return -1;
66239beb93cSSam Leffler 	if (pin)
66339beb93cSSam Leffler 		os_snprintf(val, sizeof(val), "\"pin=%s\"", pin);
66439beb93cSSam Leffler 	else {
66539beb93cSSam Leffler 		rpin = wps_generate_pin();
66639beb93cSSam Leffler 		os_snprintf(val, sizeof(val), "\"pin=%08d\"", rpin);
66739beb93cSSam Leffler 	}
66839beb93cSSam Leffler 	wpa_config_set(ssid, "phase1", val, 0);
66939beb93cSSam Leffler 	eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
67039beb93cSSam Leffler 			       wpa_s, NULL);
67139beb93cSSam Leffler 	wpas_wps_reassoc(wpa_s, ssid);
67239beb93cSSam Leffler 	return rpin;
67339beb93cSSam Leffler }
67439beb93cSSam Leffler 
67539beb93cSSam Leffler 
676*e28a4053SRui Paulo #ifdef CONFIG_WPS_OOB
677*e28a4053SRui Paulo int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
678*e28a4053SRui Paulo 		       char *path, char *method, char *name)
679*e28a4053SRui Paulo {
680*e28a4053SRui Paulo 	struct wps_context *wps = wpa_s->wps;
681*e28a4053SRui Paulo 	struct oob_device_data *oob_dev;
682*e28a4053SRui Paulo 
683*e28a4053SRui Paulo 	oob_dev = wps_get_oob_device(device_type);
684*e28a4053SRui Paulo 	if (oob_dev == NULL)
685*e28a4053SRui Paulo 		return -1;
686*e28a4053SRui Paulo 	oob_dev->device_path = path;
687*e28a4053SRui Paulo 	oob_dev->device_name = name;
688*e28a4053SRui Paulo 	wps->oob_conf.oob_method = wps_get_oob_method(method);
689*e28a4053SRui Paulo 
690*e28a4053SRui Paulo 	if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
691*e28a4053SRui Paulo 		/*
692*e28a4053SRui Paulo 		 * Use pre-configured DH keys in order to be able to write the
693*e28a4053SRui Paulo 		 * key hash into the OOB file.
694*e28a4053SRui Paulo 		 */
695*e28a4053SRui Paulo 		wpabuf_free(wps->dh_pubkey);
696*e28a4053SRui Paulo 		wpabuf_free(wps->dh_privkey);
697*e28a4053SRui Paulo 		wps->dh_privkey = NULL;
698*e28a4053SRui Paulo 		wps->dh_pubkey = NULL;
699*e28a4053SRui Paulo 		dh5_free(wps->dh_ctx);
700*e28a4053SRui Paulo 		wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
701*e28a4053SRui Paulo 		wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
702*e28a4053SRui Paulo 		if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
703*e28a4053SRui Paulo 			wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
704*e28a4053SRui Paulo 				   "Diffie-Hellman handshake");
705*e28a4053SRui Paulo 			return -1;
706*e28a4053SRui Paulo 		}
707*e28a4053SRui Paulo 	}
708*e28a4053SRui Paulo 
709*e28a4053SRui Paulo 	if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
710*e28a4053SRui Paulo 		wpas_clear_wps(wpa_s);
711*e28a4053SRui Paulo 
712*e28a4053SRui Paulo 	if (wps_process_oob(wps, oob_dev, 0) < 0)
713*e28a4053SRui Paulo 		return -1;
714*e28a4053SRui Paulo 
715*e28a4053SRui Paulo 	if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
716*e28a4053SRui Paulo 	     wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
717*e28a4053SRui Paulo 	    wpas_wps_start_pin(wpa_s, NULL,
718*e28a4053SRui Paulo 			       wpabuf_head(wps->oob_conf.dev_password)) < 0)
719*e28a4053SRui Paulo 			return -1;
720*e28a4053SRui Paulo 
721*e28a4053SRui Paulo 	return 0;
722*e28a4053SRui Paulo }
723*e28a4053SRui Paulo #endif /* CONFIG_WPS_OOB */
724*e28a4053SRui Paulo 
725*e28a4053SRui Paulo 
72639beb93cSSam Leffler int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
727*e28a4053SRui Paulo 		       const char *pin, struct wps_new_ap_settings *settings)
72839beb93cSSam Leffler {
72939beb93cSSam Leffler 	struct wpa_ssid *ssid;
730*e28a4053SRui Paulo 	char val[200];
731*e28a4053SRui Paulo 	char *pos, *end;
732*e28a4053SRui Paulo 	int res;
73339beb93cSSam Leffler 
73439beb93cSSam Leffler 	if (!pin)
73539beb93cSSam Leffler 		return -1;
73639beb93cSSam Leffler 	wpas_clear_wps(wpa_s);
73739beb93cSSam Leffler 	ssid = wpas_wps_add_network(wpa_s, 1, bssid);
73839beb93cSSam Leffler 	if (ssid == NULL)
73939beb93cSSam Leffler 		return -1;
740*e28a4053SRui Paulo 	pos = val;
741*e28a4053SRui Paulo 	end = pos + sizeof(val);
742*e28a4053SRui Paulo 	res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
743*e28a4053SRui Paulo 	if (res < 0 || res >= end - pos)
744*e28a4053SRui Paulo 		return -1;
745*e28a4053SRui Paulo 	pos += res;
746*e28a4053SRui Paulo 	if (settings) {
747*e28a4053SRui Paulo 		res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
748*e28a4053SRui Paulo 				  "new_encr=%s new_key=%s",
749*e28a4053SRui Paulo 				  settings->ssid_hex, settings->auth,
750*e28a4053SRui Paulo 				  settings->encr, settings->key_hex);
751*e28a4053SRui Paulo 		if (res < 0 || res >= end - pos)
752*e28a4053SRui Paulo 			return -1;
753*e28a4053SRui Paulo 		pos += res;
754*e28a4053SRui Paulo 	}
755*e28a4053SRui Paulo 	res = os_snprintf(pos, end - pos, "\"");
756*e28a4053SRui Paulo 	if (res < 0 || res >= end - pos)
757*e28a4053SRui Paulo 		return -1;
75839beb93cSSam Leffler 	wpa_config_set(ssid, "phase1", val, 0);
75939beb93cSSam Leffler 	eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
76039beb93cSSam Leffler 			       wpa_s, NULL);
76139beb93cSSam Leffler 	wpas_wps_reassoc(wpa_s, ssid);
76239beb93cSSam Leffler 	return 0;
76339beb93cSSam Leffler }
76439beb93cSSam Leffler 
76539beb93cSSam Leffler 
76639beb93cSSam Leffler static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
76739beb93cSSam Leffler 			       size_t psk_len)
76839beb93cSSam Leffler {
76939beb93cSSam Leffler 	wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
77039beb93cSSam Leffler 		   "STA " MACSTR, MAC2STR(mac_addr));
77139beb93cSSam Leffler 	wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
77239beb93cSSam Leffler 
77339beb93cSSam Leffler 	/* TODO */
77439beb93cSSam Leffler 
77539beb93cSSam Leffler 	return 0;
77639beb93cSSam Leffler }
77739beb93cSSam Leffler 
77839beb93cSSam Leffler 
77939beb93cSSam Leffler static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
78039beb93cSSam Leffler 				   const struct wps_device_data *dev)
78139beb93cSSam Leffler {
78239beb93cSSam Leffler 	char uuid[40], txt[400];
78339beb93cSSam Leffler 	int len;
784*e28a4053SRui Paulo 	char devtype[WPS_DEV_TYPE_BUFSIZE];
78539beb93cSSam Leffler 	if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
78639beb93cSSam Leffler 		return;
78739beb93cSSam Leffler 	wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
78839beb93cSSam Leffler 	len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
789*e28a4053SRui Paulo 			  " [%s|%s|%s|%s|%s|%s]",
79039beb93cSSam Leffler 			  uuid, MAC2STR(dev->mac_addr), dev->device_name,
79139beb93cSSam Leffler 			  dev->manufacturer, dev->model_name,
79239beb93cSSam Leffler 			  dev->model_number, dev->serial_number,
793*e28a4053SRui Paulo 			  wps_dev_type_bin2str(dev->pri_dev_type, devtype,
794*e28a4053SRui Paulo 					       sizeof(devtype)));
79539beb93cSSam Leffler 	if (len > 0 && len < (int) sizeof(txt))
79639beb93cSSam Leffler 		wpa_printf(MSG_INFO, "%s", txt);
79739beb93cSSam Leffler }
79839beb93cSSam Leffler 
79939beb93cSSam Leffler 
800*e28a4053SRui Paulo static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
801*e28a4053SRui Paulo 				    u16 sel_reg_config_methods)
802*e28a4053SRui Paulo {
803*e28a4053SRui Paulo #ifdef CONFIG_WPS_ER
804*e28a4053SRui Paulo 	struct wpa_supplicant *wpa_s = ctx;
805*e28a4053SRui Paulo 
806*e28a4053SRui Paulo 	if (wpa_s->wps_er == NULL)
807*e28a4053SRui Paulo 		return;
808*e28a4053SRui Paulo 	wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
809*e28a4053SRui Paulo 			   sel_reg_config_methods);
810*e28a4053SRui Paulo #endif /* CONFIG_WPS_ER */
811*e28a4053SRui Paulo }
812*e28a4053SRui Paulo 
813*e28a4053SRui Paulo 
81439beb93cSSam Leffler int wpas_wps_init(struct wpa_supplicant *wpa_s)
81539beb93cSSam Leffler {
81639beb93cSSam Leffler 	struct wps_context *wps;
81739beb93cSSam Leffler 	struct wps_registrar_config rcfg;
81839beb93cSSam Leffler 
81939beb93cSSam Leffler 	wps = os_zalloc(sizeof(*wps));
82039beb93cSSam Leffler 	if (wps == NULL)
82139beb93cSSam Leffler 		return -1;
82239beb93cSSam Leffler 
82339beb93cSSam Leffler 	wps->cred_cb = wpa_supplicant_wps_cred;
82439beb93cSSam Leffler 	wps->event_cb = wpa_supplicant_wps_event;
82539beb93cSSam Leffler 	wps->cb_ctx = wpa_s;
82639beb93cSSam Leffler 
82739beb93cSSam Leffler 	wps->dev.device_name = wpa_s->conf->device_name;
82839beb93cSSam Leffler 	wps->dev.manufacturer = wpa_s->conf->manufacturer;
82939beb93cSSam Leffler 	wps->dev.model_name = wpa_s->conf->model_name;
83039beb93cSSam Leffler 	wps->dev.model_number = wpa_s->conf->model_number;
83139beb93cSSam Leffler 	wps->dev.serial_number = wpa_s->conf->serial_number;
832*e28a4053SRui Paulo 	wps->config_methods =
833*e28a4053SRui Paulo 		wps_config_methods_str2bin(wpa_s->conf->config_methods);
834*e28a4053SRui Paulo 	if (wpa_s->conf->device_type &&
835*e28a4053SRui Paulo 	    wps_dev_type_str2bin(wpa_s->conf->device_type,
836*e28a4053SRui Paulo 				 wps->dev.pri_dev_type) < 0) {
83739beb93cSSam Leffler 		wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
83839beb93cSSam Leffler 		os_free(wps);
83939beb93cSSam Leffler 		return -1;
84039beb93cSSam Leffler 	}
84139beb93cSSam Leffler 	wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
84239beb93cSSam Leffler 	wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */
84339beb93cSSam Leffler 	os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
84439beb93cSSam Leffler 	if (is_nil_uuid(wpa_s->conf->uuid)) {
84539beb93cSSam Leffler 		uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
84639beb93cSSam Leffler 		wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
84739beb93cSSam Leffler 			    wps->uuid, WPS_UUID_LEN);
84839beb93cSSam Leffler 	} else
84939beb93cSSam Leffler 		os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
85039beb93cSSam Leffler 
85139beb93cSSam Leffler 	wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
85239beb93cSSam Leffler 	wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
85339beb93cSSam Leffler 
85439beb93cSSam Leffler 	os_memset(&rcfg, 0, sizeof(rcfg));
85539beb93cSSam Leffler 	rcfg.new_psk_cb = wpas_wps_new_psk_cb;
85639beb93cSSam Leffler 	rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
857*e28a4053SRui Paulo 	rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
85839beb93cSSam Leffler 	rcfg.cb_ctx = wpa_s;
85939beb93cSSam Leffler 
86039beb93cSSam Leffler 	wps->registrar = wps_registrar_init(wps, &rcfg);
86139beb93cSSam Leffler 	if (wps->registrar == NULL) {
86239beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
86339beb93cSSam Leffler 		os_free(wps);
86439beb93cSSam Leffler 		return -1;
86539beb93cSSam Leffler 	}
86639beb93cSSam Leffler 
86739beb93cSSam Leffler 	wpa_s->wps = wps;
86839beb93cSSam Leffler 
86939beb93cSSam Leffler 	return 0;
87039beb93cSSam Leffler }
87139beb93cSSam Leffler 
87239beb93cSSam Leffler 
87339beb93cSSam Leffler void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
87439beb93cSSam Leffler {
87539beb93cSSam Leffler 	eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
87639beb93cSSam Leffler 
87739beb93cSSam Leffler 	if (wpa_s->wps == NULL)
87839beb93cSSam Leffler 		return;
87939beb93cSSam Leffler 
880*e28a4053SRui Paulo #ifdef CONFIG_WPS_ER
881*e28a4053SRui Paulo 	wps_er_deinit(wpa_s->wps_er, NULL, NULL);
882*e28a4053SRui Paulo 	wpa_s->wps_er = NULL;
883*e28a4053SRui Paulo #endif /* CONFIG_WPS_ER */
884*e28a4053SRui Paulo 
88539beb93cSSam Leffler 	wps_registrar_deinit(wpa_s->wps->registrar);
886*e28a4053SRui Paulo 	wpabuf_free(wpa_s->wps->dh_pubkey);
887*e28a4053SRui Paulo 	wpabuf_free(wpa_s->wps->dh_privkey);
888*e28a4053SRui Paulo 	wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
889*e28a4053SRui Paulo 	wpabuf_free(wpa_s->wps->oob_conf.dev_password);
89039beb93cSSam Leffler 	os_free(wpa_s->wps->network_key);
89139beb93cSSam Leffler 	os_free(wpa_s->wps);
89239beb93cSSam Leffler 	wpa_s->wps = NULL;
89339beb93cSSam Leffler }
89439beb93cSSam Leffler 
89539beb93cSSam Leffler 
89639beb93cSSam Leffler int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
89739beb93cSSam Leffler 			    struct wpa_ssid *ssid, struct wpa_scan_res *bss)
89839beb93cSSam Leffler {
89939beb93cSSam Leffler 	struct wpabuf *wps_ie;
90039beb93cSSam Leffler 
90139beb93cSSam Leffler 	if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
90239beb93cSSam Leffler 		return -1;
90339beb93cSSam Leffler 
90439beb93cSSam Leffler 	wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
90539beb93cSSam Leffler 	if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
90639beb93cSSam Leffler 		if (!wps_ie) {
90739beb93cSSam Leffler 			wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
90839beb93cSSam Leffler 			return 0;
90939beb93cSSam Leffler 		}
91039beb93cSSam Leffler 
91139beb93cSSam Leffler 		if (!wps_is_selected_pbc_registrar(wps_ie)) {
91239beb93cSSam Leffler 			wpa_printf(MSG_DEBUG, "   skip - WPS AP "
91339beb93cSSam Leffler 				   "without active PBC Registrar");
91439beb93cSSam Leffler 			wpabuf_free(wps_ie);
91539beb93cSSam Leffler 			return 0;
91639beb93cSSam Leffler 		}
91739beb93cSSam Leffler 
91839beb93cSSam Leffler 		/* TODO: overlap detection */
91939beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
92039beb93cSSam Leffler 			   "(Active PBC)");
92139beb93cSSam Leffler 		wpabuf_free(wps_ie);
92239beb93cSSam Leffler 		return 1;
92339beb93cSSam Leffler 	}
92439beb93cSSam Leffler 
92539beb93cSSam Leffler 	if (eap_is_wps_pin_enrollee(&ssid->eap)) {
92639beb93cSSam Leffler 		if (!wps_ie) {
92739beb93cSSam Leffler 			wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
92839beb93cSSam Leffler 			return 0;
92939beb93cSSam Leffler 		}
93039beb93cSSam Leffler 
93139beb93cSSam Leffler 		/*
93239beb93cSSam Leffler 		 * Start with WPS APs that advertise active PIN Registrar and
93339beb93cSSam Leffler 		 * allow any WPS AP after third scan since some APs do not set
93439beb93cSSam Leffler 		 * Selected Registrar attribute properly when using external
93539beb93cSSam Leffler 		 * Registrar.
93639beb93cSSam Leffler 		 */
93739beb93cSSam Leffler 		if (!wps_is_selected_pin_registrar(wps_ie)) {
93839beb93cSSam Leffler 			if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
93939beb93cSSam Leffler 				wpa_printf(MSG_DEBUG, "   skip - WPS AP "
94039beb93cSSam Leffler 					   "without active PIN Registrar");
94139beb93cSSam Leffler 				wpabuf_free(wps_ie);
94239beb93cSSam Leffler 				return 0;
94339beb93cSSam Leffler 			}
94439beb93cSSam Leffler 			wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
94539beb93cSSam Leffler 		} else {
94639beb93cSSam Leffler 			wpa_printf(MSG_DEBUG, "   selected based on WPS IE "
94739beb93cSSam Leffler 				   "(Active PIN)");
94839beb93cSSam Leffler 		}
94939beb93cSSam Leffler 		wpabuf_free(wps_ie);
95039beb93cSSam Leffler 		return 1;
95139beb93cSSam Leffler 	}
95239beb93cSSam Leffler 
95339beb93cSSam Leffler 	if (wps_ie) {
95439beb93cSSam Leffler 		wpa_printf(MSG_DEBUG, "   selected based on WPS IE");
95539beb93cSSam Leffler 		wpabuf_free(wps_ie);
95639beb93cSSam Leffler 		return 1;
95739beb93cSSam Leffler 	}
95839beb93cSSam Leffler 
95939beb93cSSam Leffler 	return -1;
96039beb93cSSam Leffler }
96139beb93cSSam Leffler 
96239beb93cSSam Leffler 
96339beb93cSSam Leffler int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
96439beb93cSSam Leffler 			      struct wpa_ssid *ssid,
96539beb93cSSam Leffler 			      struct wpa_scan_res *bss)
96639beb93cSSam Leffler {
96739beb93cSSam Leffler 	struct wpabuf *wps_ie = NULL;
96839beb93cSSam Leffler 	int ret = 0;
96939beb93cSSam Leffler 
97039beb93cSSam Leffler 	if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
97139beb93cSSam Leffler 		wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
97239beb93cSSam Leffler 		if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
97339beb93cSSam Leffler 			/* allow wildcard SSID for WPS PBC */
97439beb93cSSam Leffler 			ret = 1;
97539beb93cSSam Leffler 		}
97639beb93cSSam Leffler 	} else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
97739beb93cSSam Leffler 		wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
97839beb93cSSam Leffler 		if (wps_ie &&
97939beb93cSSam Leffler 		    (wps_is_selected_pin_registrar(wps_ie) ||
98039beb93cSSam Leffler 		     wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
98139beb93cSSam Leffler 			/* allow wildcard SSID for WPS PIN */
98239beb93cSSam Leffler 			ret = 1;
98339beb93cSSam Leffler 		}
98439beb93cSSam Leffler 	}
98539beb93cSSam Leffler 
98639beb93cSSam Leffler 	if (!ret && ssid->bssid_set &&
98739beb93cSSam Leffler 	    os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
98839beb93cSSam Leffler 		/* allow wildcard SSID due to hardcoded BSSID match */
98939beb93cSSam Leffler 		ret = 1;
99039beb93cSSam Leffler 	}
99139beb93cSSam Leffler 
99239beb93cSSam Leffler 	wpabuf_free(wps_ie);
99339beb93cSSam Leffler 
99439beb93cSSam Leffler 	return ret;
99539beb93cSSam Leffler }
99639beb93cSSam Leffler 
99739beb93cSSam Leffler 
99839beb93cSSam Leffler int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
999*e28a4053SRui Paulo 			      struct wpa_bss *selected, struct wpa_ssid *ssid)
100039beb93cSSam Leffler {
100139beb93cSSam Leffler 	const u8 *sel_uuid, *uuid;
100239beb93cSSam Leffler 	struct wpabuf *wps_ie;
100339beb93cSSam Leffler 	int ret = 0;
1004*e28a4053SRui Paulo 	struct wpa_bss *bss;
100539beb93cSSam Leffler 
100639beb93cSSam Leffler 	if (!eap_is_wps_pbc_enrollee(&ssid->eap))
100739beb93cSSam Leffler 		return 0;
100839beb93cSSam Leffler 
100939beb93cSSam Leffler 	/* Make sure that only one AP is in active PBC mode */
1010*e28a4053SRui Paulo 	wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
101139beb93cSSam Leffler 	if (wps_ie)
101239beb93cSSam Leffler 		sel_uuid = wps_get_uuid_e(wps_ie);
101339beb93cSSam Leffler 	else
101439beb93cSSam Leffler 		sel_uuid = NULL;
101539beb93cSSam Leffler 
1016*e28a4053SRui Paulo 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
101739beb93cSSam Leffler 		struct wpabuf *ie;
101839beb93cSSam Leffler 		if (bss == selected)
101939beb93cSSam Leffler 			continue;
1020*e28a4053SRui Paulo 		ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
102139beb93cSSam Leffler 		if (!ie)
102239beb93cSSam Leffler 			continue;
102339beb93cSSam Leffler 		if (!wps_is_selected_pbc_registrar(ie)) {
102439beb93cSSam Leffler 			wpabuf_free(ie);
102539beb93cSSam Leffler 			continue;
102639beb93cSSam Leffler 		}
102739beb93cSSam Leffler 		uuid = wps_get_uuid_e(ie);
102839beb93cSSam Leffler 		if (sel_uuid == NULL || uuid == NULL ||
102939beb93cSSam Leffler 		    os_memcmp(sel_uuid, uuid, 16) != 0) {
103039beb93cSSam Leffler 			ret = 1; /* PBC overlap */
103139beb93cSSam Leffler 			wpabuf_free(ie);
103239beb93cSSam Leffler 			break;
103339beb93cSSam Leffler 		}
103439beb93cSSam Leffler 
103539beb93cSSam Leffler 		/* TODO: verify that this is reasonable dual-band situation */
103639beb93cSSam Leffler 
103739beb93cSSam Leffler 		wpabuf_free(ie);
103839beb93cSSam Leffler 	}
103939beb93cSSam Leffler 
104039beb93cSSam Leffler 	wpabuf_free(wps_ie);
104139beb93cSSam Leffler 
104239beb93cSSam Leffler 	return ret;
104339beb93cSSam Leffler }
104439beb93cSSam Leffler 
104539beb93cSSam Leffler 
104639beb93cSSam Leffler void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
104739beb93cSSam Leffler {
1048*e28a4053SRui Paulo 	struct wpa_bss *bss;
104939beb93cSSam Leffler 
105039beb93cSSam Leffler 	if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
105139beb93cSSam Leffler 		return;
105239beb93cSSam Leffler 
1053*e28a4053SRui Paulo 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
105439beb93cSSam Leffler 		struct wpabuf *ie;
1055*e28a4053SRui Paulo 		ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
105639beb93cSSam Leffler 		if (!ie)
105739beb93cSSam Leffler 			continue;
105839beb93cSSam Leffler 		if (wps_is_selected_pbc_registrar(ie))
1059*e28a4053SRui Paulo 			wpa_msg_ctrl(wpa_s, MSG_INFO,
1060*e28a4053SRui Paulo 				     WPS_EVENT_AP_AVAILABLE_PBC);
106139beb93cSSam Leffler 		else if (wps_is_selected_pin_registrar(ie))
1062*e28a4053SRui Paulo 			wpa_msg_ctrl(wpa_s, MSG_INFO,
1063*e28a4053SRui Paulo 				     WPS_EVENT_AP_AVAILABLE_PIN);
106439beb93cSSam Leffler 		else
1065*e28a4053SRui Paulo 			wpa_msg_ctrl(wpa_s, MSG_INFO,
1066*e28a4053SRui Paulo 				     WPS_EVENT_AP_AVAILABLE);
106739beb93cSSam Leffler 		wpabuf_free(ie);
106839beb93cSSam Leffler 		break;
106939beb93cSSam Leffler 	}
107039beb93cSSam Leffler }
107139beb93cSSam Leffler 
107239beb93cSSam Leffler 
107339beb93cSSam Leffler int wpas_wps_searching(struct wpa_supplicant *wpa_s)
107439beb93cSSam Leffler {
107539beb93cSSam Leffler 	struct wpa_ssid *ssid;
107639beb93cSSam Leffler 
107739beb93cSSam Leffler 	for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
107839beb93cSSam Leffler 		if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
107939beb93cSSam Leffler 			return 1;
108039beb93cSSam Leffler 	}
108139beb93cSSam Leffler 
108239beb93cSSam Leffler 	return 0;
108339beb93cSSam Leffler }
1084*e28a4053SRui Paulo 
1085*e28a4053SRui Paulo 
1086*e28a4053SRui Paulo int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1087*e28a4053SRui Paulo 			      char *end)
1088*e28a4053SRui Paulo {
1089*e28a4053SRui Paulo 	struct wpabuf *wps_ie;
1090*e28a4053SRui Paulo 	int ret;
1091*e28a4053SRui Paulo 
1092*e28a4053SRui Paulo 	wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1093*e28a4053SRui Paulo 	if (wps_ie == NULL)
1094*e28a4053SRui Paulo 		return 0;
1095*e28a4053SRui Paulo 
1096*e28a4053SRui Paulo 	ret = wps_attr_text(wps_ie, buf, end);
1097*e28a4053SRui Paulo 	wpabuf_free(wps_ie);
1098*e28a4053SRui Paulo 	return ret;
1099*e28a4053SRui Paulo }
1100*e28a4053SRui Paulo 
1101*e28a4053SRui Paulo 
1102*e28a4053SRui Paulo int wpas_wps_er_start(struct wpa_supplicant *wpa_s)
1103*e28a4053SRui Paulo {
1104*e28a4053SRui Paulo #ifdef CONFIG_WPS_ER
1105*e28a4053SRui Paulo 	if (wpa_s->wps_er) {
1106*e28a4053SRui Paulo 		wps_er_refresh(wpa_s->wps_er);
1107*e28a4053SRui Paulo 		return 0;
1108*e28a4053SRui Paulo 	}
1109*e28a4053SRui Paulo 	wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname);
1110*e28a4053SRui Paulo 	if (wpa_s->wps_er == NULL)
1111*e28a4053SRui Paulo 		return -1;
1112*e28a4053SRui Paulo 	return 0;
1113*e28a4053SRui Paulo #else /* CONFIG_WPS_ER */
1114*e28a4053SRui Paulo 	return 0;
1115*e28a4053SRui Paulo #endif /* CONFIG_WPS_ER */
1116*e28a4053SRui Paulo }
1117*e28a4053SRui Paulo 
1118*e28a4053SRui Paulo 
1119*e28a4053SRui Paulo int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1120*e28a4053SRui Paulo {
1121*e28a4053SRui Paulo #ifdef CONFIG_WPS_ER
1122*e28a4053SRui Paulo 	wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1123*e28a4053SRui Paulo 	wpa_s->wps_er = NULL;
1124*e28a4053SRui Paulo #endif /* CONFIG_WPS_ER */
1125*e28a4053SRui Paulo 	return 0;
1126*e28a4053SRui Paulo }
1127*e28a4053SRui Paulo 
1128*e28a4053SRui Paulo 
1129*e28a4053SRui Paulo #ifdef CONFIG_WPS_ER
1130*e28a4053SRui Paulo int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const char *uuid,
1131*e28a4053SRui Paulo 			const char *pin)
1132*e28a4053SRui Paulo {
1133*e28a4053SRui Paulo 	u8 u[UUID_LEN];
1134*e28a4053SRui Paulo 	int any = 0;
1135*e28a4053SRui Paulo 
1136*e28a4053SRui Paulo 	if (os_strcmp(uuid, "any") == 0)
1137*e28a4053SRui Paulo 		any = 1;
1138*e28a4053SRui Paulo 	else if (uuid_str2bin(uuid, u))
1139*e28a4053SRui Paulo 		return -1;
1140*e28a4053SRui Paulo 	return wps_registrar_add_pin(wpa_s->wps->registrar, any ? NULL : u,
1141*e28a4053SRui Paulo 				     (const u8 *) pin, os_strlen(pin), 300);
1142*e28a4053SRui Paulo }
1143*e28a4053SRui Paulo 
1144*e28a4053SRui Paulo 
1145*e28a4053SRui Paulo int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1146*e28a4053SRui Paulo {
1147*e28a4053SRui Paulo 	u8 u[UUID_LEN];
1148*e28a4053SRui Paulo 
1149*e28a4053SRui Paulo 	if (uuid_str2bin(uuid, u))
1150*e28a4053SRui Paulo 		return -1;
1151*e28a4053SRui Paulo 	return wps_er_pbc(wpa_s->wps_er, u);
1152*e28a4053SRui Paulo }
1153*e28a4053SRui Paulo 
1154*e28a4053SRui Paulo 
1155*e28a4053SRui Paulo int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1156*e28a4053SRui Paulo 		      const char *pin)
1157*e28a4053SRui Paulo {
1158*e28a4053SRui Paulo 	u8 u[UUID_LEN];
1159*e28a4053SRui Paulo 
1160*e28a4053SRui Paulo 	if (uuid_str2bin(uuid, u))
1161*e28a4053SRui Paulo 		return -1;
1162*e28a4053SRui Paulo 	return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1163*e28a4053SRui Paulo 			    os_strlen(pin));
1164*e28a4053SRui Paulo }
1165*e28a4053SRui Paulo 
1166*e28a4053SRui Paulo 
1167*e28a4053SRui Paulo static void wpas_wps_terminate_cb(void *ctx)
1168*e28a4053SRui Paulo {
1169*e28a4053SRui Paulo 	wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1170*e28a4053SRui Paulo 	eloop_terminate();
1171*e28a4053SRui Paulo }
1172*e28a4053SRui Paulo #endif /* CONFIG_WPS_ER */
1173*e28a4053SRui Paulo 
1174*e28a4053SRui Paulo 
1175*e28a4053SRui Paulo int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1176*e28a4053SRui Paulo {
1177*e28a4053SRui Paulo #ifdef CONFIG_WPS_ER
1178*e28a4053SRui Paulo 	if (wpa_s->wps_er) {
1179*e28a4053SRui Paulo 		wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1180*e28a4053SRui Paulo 		wpa_s->wps_er = NULL;
1181*e28a4053SRui Paulo 		return 1;
1182*e28a4053SRui Paulo 	}
1183*e28a4053SRui Paulo #endif /* CONFIG_WPS_ER */
1184*e28a4053SRui Paulo 	return 0;
1185*e28a4053SRui Paulo }
1186