[thirdparty/hostap.git] / wpa_supplicant / sme.c

/*
 * wpa_supplicant - SME
 * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 */

#include "includes.h"

#include "common.h"
#include "ieee802_11_defs.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "wpa_common.h"
#include "wpa.h"
#include "pmksa_cache.h"
#include "config.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "wpas_glue.h"
#include "wps_supplicant.h"
#include "sme.h"

void sme_authenticate(struct wpa_supplicant *wpa_s,
		      struct wpa_scan_res *bss, struct wpa_ssid *ssid)
{
	struct wpa_driver_auth_params params;
	const u8 *ie;
#ifdef CONFIG_IEEE80211R
	const u8 *md = NULL;
#endif /* CONFIG_IEEE80211R */

	if (bss == NULL) {
		wpa_printf(MSG_ERROR, "SME: No scan result available for the "
			   "network");
		return;
	}

	os_memset(&params, 0, sizeof(params));
	wpa_s->reassociate = 0;

	params.freq = bss->freq;
	params.bssid = bss->bssid;
	ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
	if (ie == NULL) {
		wpa_printf(MSG_ERROR, "SME: SSID not available for the BSS");
		return;
	}
	params.ssid = ie + 2;
	params.ssid_len = ie[1];

	wpa_s->sme.freq = params.freq;
	os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len);
	wpa_s->sme.ssid_len = params.ssid_len;

	params.auth_alg = AUTH_ALG_OPEN_SYSTEM;
#ifdef IEEE8021X_EAPOL
	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
		if (ssid->leap) {
			if (ssid->non_leap == 0)
				params.auth_alg = AUTH_ALG_LEAP;
			else
				params.auth_alg |= AUTH_ALG_LEAP;
		}
	}
#endif /* IEEE8021X_EAPOL */
	wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
		   params.auth_alg);
	if (ssid->auth_alg) {
		params.auth_alg = 0;
		if (ssid->auth_alg & WPA_AUTH_ALG_OPEN)
			params.auth_alg |= AUTH_ALG_OPEN_SYSTEM;
		if (ssid->auth_alg & WPA_AUTH_ALG_SHARED)
			params.auth_alg |= AUTH_ALG_SHARED_KEY;
		if (ssid->auth_alg & WPA_AUTH_ALG_LEAP)
			params.auth_alg |= AUTH_ALG_LEAP;
		wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x",
			   params.auth_alg);
	}

	os_memset(wpa_s->bssid, 0, ETH_ALEN);
	os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);

	if (bss && (wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
		    wpa_scan_get_ie(bss, WLAN_EID_RSN)) &&
	    (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
			       WPA_KEY_MGMT_FT_IEEE8021X |
			       WPA_KEY_MGMT_FT_PSK |
			       WPA_KEY_MGMT_IEEE8021X_SHA256 |
			       WPA_KEY_MGMT_PSK_SHA256))) {
		int try_opportunistic;
		try_opportunistic = ssid->proactive_key_caching &&
			(ssid->proto & WPA_PROTO_RSN);
		if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
					    wpa_s->current_ssid,
					    try_opportunistic) == 0)
			eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
		wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
		if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
					      wpa_s->sme.assoc_req_ie,
					      &wpa_s->sme.assoc_req_ie_len)) {
			wpa_printf(MSG_WARNING, "SME: Failed to set WPA key "
				   "management and encryption suites");
			return;
		}
	} else if (ssid->key_mgmt &
		   (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
		    WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK |
		    WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 |
		    WPA_KEY_MGMT_IEEE8021X_SHA256)) {
		wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
		if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
					      wpa_s->sme.assoc_req_ie,
					      &wpa_s->sme.assoc_req_ie_len)) {
			wpa_printf(MSG_WARNING, "SME: Failed to set WPA key "
				   "management and encryption suites (no scan "
				   "results)");
			return;
		}
#ifdef CONFIG_WPS
	} else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
		struct wpabuf *wps_ie;
		wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
		if (wps_ie && wpabuf_len(wps_ie) <=
		    sizeof(wpa_s->sme.assoc_req_ie)) {
			wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie);
			os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie),
				  wpa_s->sme.assoc_req_ie_len);
		} else
			wpa_s->sme.assoc_req_ie_len = 0;
		wpabuf_free(wps_ie);
		wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
#endif /* CONFIG_WPS */
	} else {
		wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
		wpa_s->sme.assoc_req_ie_len = 0;
	}

#ifdef CONFIG_IEEE80211R
	ie = wpa_scan_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
	if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
		md = ie + 2;
	wpa_sm_set_ft_params(wpa_s->wpa, md, NULL, 0, NULL);
	if (md) {
		/* Prepare for the next transition */
		wpa_ft_prepare_auth_request(wpa_s->wpa);
	}

	if (md && ssid->key_mgmt & (WPA_KEY_MGMT_FT_PSK |
				    WPA_KEY_MGMT_FT_IEEE8021X)) {
		if (wpa_s->sme.assoc_req_ie_len + 5 <
		    sizeof(wpa_s->sme.assoc_req_ie)) {
			struct rsn_mdie *mdie;
			u8 *pos = wpa_s->sme.assoc_req_ie +
				wpa_s->sme.assoc_req_ie_len;
			*pos++ = WLAN_EID_MOBILITY_DOMAIN;
			*pos++ = sizeof(*mdie);
			mdie = (struct rsn_mdie *) pos;
			os_memcpy(mdie->mobility_domain, md,
				  MOBILITY_DOMAIN_ID_LEN);
			mdie->ft_capab = 0;
			wpa_s->sme.assoc_req_ie_len += 5;
		}

		if (wpa_s->sme.ft_used &&
		    os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0) {
			wpa_printf(MSG_DEBUG, "SME: Trying to use FT "
				   "over-the-air");
			params.auth_alg = AUTH_ALG_FT;
			params.ie = wpa_s->sme.ft_ies;
			params.ie_len = wpa_s->sme.ft_ies_len;
		}
	}
#endif /* CONFIG_IEEE80211R */

#ifdef CONFIG_IEEE80211W
	switch (ssid->ieee80211w) {
	case NO_IEEE80211W:
		wpa_s->sme.mfp = NO_MGMT_FRAME_PROTECTION;
		break;
	case IEEE80211W_OPTIONAL:
		wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_OPTIONAL;
		break;
	case IEEE80211W_REQUIRED:
		wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
		break;
	}
	if (ssid->ieee80211w != NO_IEEE80211W && bss) {
		const u8 *rsn = wpa_scan_get_ie(bss, WLAN_EID_RSN);
		struct wpa_ie_data _ie;
		if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
		    _ie.capabilities &
		    (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
			wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: "
				   "require MFP");
			wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
		}
	}
#endif /* CONFIG_IEEE80211W */

	wpa_supplicant_cancel_scan(wpa_s);

	wpa_msg(wpa_s, MSG_INFO, "Trying to authenticate with " MACSTR
		" (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
		wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);

	wpa_clear_keys(wpa_s, bss->bssid);
	wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
	wpa_s->current_ssid = ssid;
	wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
	wpa_supplicant_initiate_eapol(wpa_s);

	if (wpa_drv_authenticate(wpa_s, &params) < 0) {
		wpa_msg(wpa_s, MSG_INFO, "Authentication request to the "
			"driver failed");
		return;
	}

	/* TODO: add timeout on authentication */

	/*
	 * Association will be started based on the authentication event from
	 * the driver.
	 */
}


void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
{
	struct wpa_driver_associate_params params;
	struct wpa_ssid *ssid = wpa_s->current_ssid;

	if (ssid == NULL) {
		wpa_printf(MSG_DEBUG, "SME: Ignore authentication event when "
			   "network is not selected");
		return;
	}

	if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
		wpa_printf(MSG_DEBUG, "SME: Ignore authentication event when "
			   "not in authenticating state");
		return;
	}

	if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
		wpa_printf(MSG_DEBUG, "SME: Ignore authentication with "
			   "unexpected peer " MACSTR,
			   MAC2STR(data->auth.peer));
		return;
	}

	wpa_printf(MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
		   " auth_type=%d status_code=%d",
		   MAC2STR(data->auth.peer), data->auth.auth_type,
		   data->auth.status_code);
	wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
		    data->auth.ies, data->auth.ies_len);

	if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
		wpa_printf(MSG_DEBUG, "SME: Authentication failed (status "
			   "code %d)", data->auth.status_code);
		return;
	}

#ifdef CONFIG_IEEE80211R
	if (data->auth.auth_type == WLAN_AUTH_FT) {
		union wpa_event_data edata;
		os_memset(&edata, 0, sizeof(edata));
		edata.ft_ies.ies = data->auth.ies;
		edata.ft_ies.ies_len = data->auth.ies_len;
		os_memcpy(edata.ft_ies.target_ap, data->auth.peer, ETH_ALEN);
		wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &edata);
	}
#endif /* CONFIG_IEEE80211R */

	os_memset(&params, 0, sizeof(params));
	params.bssid = data->auth.peer;
	params.ssid = wpa_s->sme.ssid;
	params.ssid_len = wpa_s->sme.ssid_len;
	params.freq = wpa_s->sme.freq;
	params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
		wpa_s->sme.assoc_req_ie : NULL;
	params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
#ifdef CONFIG_IEEE80211R
	if (data->auth.auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
		params.wpa_ie = wpa_s->sme.ft_ies;
		params.wpa_ie_len = wpa_s->sme.ft_ies_len;
	}
#endif /* CONFIG_IEEE80211R */
	params.mode = ssid->mode;
	params.mgmt_frame_protection = wpa_s->sme.mfp;

	wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
		" (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
		params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
		params.freq);

	wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);

	if (wpa_drv_associate(wpa_s, &params) < 0) {
		wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
			"failed");
		return;
	}

	/* TODO: add timeout on association */
}


int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
		      const u8 *ies, size_t ies_len)
{
	if (md == NULL || ies == NULL) {
		wpa_printf(MSG_DEBUG, "SME: Remove mobility domain");
		os_free(wpa_s->sme.ft_ies);
		wpa_s->sme.ft_ies = NULL;
		wpa_s->sme.ft_ies_len = 0;
		wpa_s->sme.ft_used = 0;
		return 0;
	}

	os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
	wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
	os_free(wpa_s->sme.ft_ies);
	wpa_s->sme.ft_ies = os_malloc(ies_len);
	if (wpa_s->sme.ft_ies == NULL)
		return -1;
	os_memcpy(wpa_s->sme.ft_ies, ies, ies_len);
	wpa_s->sme.ft_ies_len = ies_len;
	return 0;
}
Commit	Line	Data
c2a04078 JM	1	/*
	2	* wpa_supplicant - SME
	3	* Copyright (c) 2009, Jouni Malinen <j@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 "includes.h"
	16
	17	#include "common.h"
c2a04078 JM	18	#include "ieee802_11_defs.h"
	19	#include "eapol_supp/eapol_supp_sm.h"
	20	#include "wpa_common.h"
	21	#include "wpa.h"
	22	#include "pmksa_cache.h"
	23	#include "config.h"
	24	#include "wpa_supplicant_i.h"
2d5b792d	25	#include "driver_i.h"
c2a04078 JM	26	#include "wpas_glue.h"
	27	#include "wps_supplicant.h"
	28	#include "sme.h"
	29
	30	void sme_authenticate(struct wpa_supplicant *wpa_s,
	31	struct wpa_scan_res bss, struct wpa_ssid ssid)
	32	{
	33	struct wpa_driver_auth_params params;
	34	const u8 *ie;
	35	#ifdef CONFIG_IEEE80211R
	36	const u8 *md = NULL;
	37	#endif /* CONFIG_IEEE80211R */
	38
	39	if (bss == NULL) {
	40	wpa_printf(MSG_ERROR, "SME: No scan result available for the "
	41	"network");
	42	return;
	43	}
	44
	45	os_memset(&params, 0, sizeof(params));
	46	wpa_s->reassociate = 0;
	47
	48	params.freq = bss->freq;
	49	params.bssid = bss->bssid;
	50	ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
	51	if (ie == NULL) {
	52	wpa_printf(MSG_ERROR, "SME: SSID not available for the BSS");
	53	return;
	54	}
	55	params.ssid = ie + 2;
	56	params.ssid_len = ie[1];
	57
	58	wpa_s->sme.freq = params.freq;
	59	os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len);
	60	wpa_s->sme.ssid_len = params.ssid_len;
	61
	62	params.auth_alg = AUTH_ALG_OPEN_SYSTEM;
	63	#ifdef IEEE8021X_EAPOL
	64	if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
	65	if (ssid->leap) {
	66	if (ssid->non_leap == 0)
	67	params.auth_alg = AUTH_ALG_LEAP;
	68	else
	69	params.auth_alg \|= AUTH_ALG_LEAP;
	70	}
	71	}
	72	#endif /* IEEE8021X_EAPOL */
	73	wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
	74	params.auth_alg);
	75	if (ssid->auth_alg) {
	76	params.auth_alg = 0;
	77	if (ssid->auth_alg & WPA_AUTH_ALG_OPEN)
	78	params.auth_alg \|= AUTH_ALG_OPEN_SYSTEM;
	79	if (ssid->auth_alg & WPA_AUTH_ALG_SHARED)
	80	params.auth_alg \|= AUTH_ALG_SHARED_KEY;
	81	if (ssid->auth_alg & WPA_AUTH_ALG_LEAP)
	82	params.auth_alg \|= AUTH_ALG_LEAP;
	83	wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x",
	84	params.auth_alg);
	85	}
	86
	87	os_memset(wpa_s->bssid, 0, ETH_ALEN);
	88	os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
	89
90	if (bss && (wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) \|\|
91	wpa_scan_get_ie(bss, WLAN_EID_RSN)) &&
92	(ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X \| WPA_KEY_MGMT_PSK \|
93	WPA_KEY_MGMT_FT_IEEE8021X \|
94	WPA_KEY_MGMT_FT_PSK \|
95	WPA_KEY_MGMT_IEEE8021X_SHA256 \|
96	WPA_KEY_MGMT_PSK_SHA256))) {
97	int try_opportunistic;
98	try_opportunistic = ssid->proactive_key_caching &&
99	(ssid->proto & WPA_PROTO_RSN);
100	if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
101	wpa_s->current_ssid,
102	try_opportunistic) == 0)
103	eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
104	wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
105	if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
106	wpa_s->sme.assoc_req_ie,
107	&wpa_s->sme.assoc_req_ie_len)) {
108	wpa_printf(MSG_WARNING, "SME: Failed to set WPA key "
109	"management and encryption suites");
110	return;
111	}
112	} else if (ssid->key_mgmt &
113	(WPA_KEY_MGMT_PSK \| WPA_KEY_MGMT_IEEE8021X \|
114	WPA_KEY_MGMT_WPA_NONE \| WPA_KEY_MGMT_FT_PSK \|
115	WPA_KEY_MGMT_FT_IEEE8021X \| WPA_KEY_MGMT_PSK_SHA256 \|
116	WPA_KEY_MGMT_IEEE8021X_SHA256)) {
117	wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
118	if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
119	wpa_s->sme.assoc_req_ie,
120	&wpa_s->sme.assoc_req_ie_len)) {
121	wpa_printf(MSG_WARNING, "SME: Failed to set WPA key "
122	"management and encryption suites (no scan "
123	"results)");
124	return;
125	}
126	#ifdef CONFIG_WPS
127	} else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
128	struct wpabuf *wps_ie;
129	wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
130	if (wps_ie && wpabuf_len(wps_ie) <=
131	sizeof(wpa_s->sme.assoc_req_ie)) {
132	wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie);
133	os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie),
134	wpa_s->sme.assoc_req_ie_len);
135	} else
136	wpa_s->sme.assoc_req_ie_len = 0;
137	wpabuf_free(wps_ie);
138	wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
139	#endif /* CONFIG_WPS */
140	} else {
141	wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
142	wpa_s->sme.assoc_req_ie_len = 0;
143	}
144
145	#ifdef CONFIG_IEEE80211R
146	ie = wpa_scan_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
147	if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
148	md = ie + 2;
149	wpa_sm_set_ft_params(wpa_s->wpa, md, NULL, 0, NULL);
150	if (md) {
151	/* Prepare for the next transition */
152	wpa_ft_prepare_auth_request(wpa_s->wpa);
153	}
154
155	if (md && ssid->key_mgmt & (WPA_KEY_MGMT_FT_PSK \|
156	WPA_KEY_MGMT_FT_IEEE8021X)) {
157	if (wpa_s->sme.assoc_req_ie_len + 5 <
158	sizeof(wpa_s->sme.assoc_req_ie)) {
159	struct rsn_mdie *mdie;
160	u8 *pos = wpa_s->sme.assoc_req_ie +
161	wpa_s->sme.assoc_req_ie_len;
162	*pos++ = WLAN_EID_MOBILITY_DOMAIN;
163	pos++ = sizeof(mdie);
164	mdie = (struct rsn_mdie *) pos;
165	os_memcpy(mdie->mobility_domain, md,
166	MOBILITY_DOMAIN_ID_LEN);
167	mdie->ft_capab = 0;
168	wpa_s->sme.assoc_req_ie_len += 5;
169	}
170
171	if (wpa_s->sme.ft_used &&
172	os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0) {
173	wpa_printf(MSG_DEBUG, "SME: Trying to use FT "
174	"over-the-air");
175	params.auth_alg = AUTH_ALG_FT;
176	params.ie = wpa_s->sme.ft_ies;
177	params.ie_len = wpa_s->sme.ft_ies_len;
178	}
179	}
180	#endif /* CONFIG_IEEE80211R */
181
182	#ifdef CONFIG_IEEE80211W
183	switch (ssid->ieee80211w) {
184	case NO_IEEE80211W:
185	wpa_s->sme.mfp = NO_MGMT_FRAME_PROTECTION;
186	break;
187	case IEEE80211W_OPTIONAL:
188	wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_OPTIONAL;
189	break;
190	case IEEE80211W_REQUIRED:
191	wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
192	break;
193	}
194	if (ssid->ieee80211w != NO_IEEE80211W && bss) {
195	const u8 *rsn = wpa_scan_get_ie(bss, WLAN_EID_RSN);
196	struct wpa_ie_data _ie;
197	if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
198	_ie.capabilities &
199	(WPA_CAPABILITY_MFPC \| WPA_CAPABILITY_MFPR)) {
200	wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: "
201	"require MFP");
202	wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
203	}
204	}
205	#endif /* CONFIG_IEEE80211W */
206
207	wpa_supplicant_cancel_scan(wpa_s);
208
209	wpa_msg(wpa_s, MSG_INFO, "Trying to authenticate with " MACSTR
210	" (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
211	wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);
212
213	wpa_clear_keys(wpa_s, bss->bssid);
214	wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
215	wpa_s->current_ssid = ssid;
216	wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
217	wpa_supplicant_initiate_eapol(wpa_s);
218
219	if (wpa_drv_authenticate(wpa_s, &params) < 0) {
220	wpa_msg(wpa_s, MSG_INFO, "Authentication request to the "
221	"driver failed");
222	return;
223	}
224
225	/* TODO: add timeout on authentication */
226
227	/*
228	* Association will be started based on the authentication event from
229	* the driver.
230	*/
231	}
232
233
234	void sme_event_auth(struct wpa_supplicant wpa_s, union wpa_event_data data)
235	{
236	struct wpa_driver_associate_params params;
237	struct wpa_ssid *ssid = wpa_s->current_ssid;
238
239	if (ssid == NULL) {
240	wpa_printf(MSG_DEBUG, "SME: Ignore authentication event when "
241	"network is not selected");
242	return;
243	}
244
245	if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
246	wpa_printf(MSG_DEBUG, "SME: Ignore authentication event when "
247	"not in authenticating state");
248	return;
249	}
250
251	if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
252	wpa_printf(MSG_DEBUG, "SME: Ignore authentication with "
253	"unexpected peer " MACSTR,
254	MAC2STR(data->auth.peer));
255	return;
256	}
257
258	wpa_printf(MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
259	" auth_type=%d status_code=%d",
260	MAC2STR(data->auth.peer), data->auth.auth_type,
261	data->auth.status_code);
262	wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
263	data->auth.ies, data->auth.ies_len);
264
265	if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
266	wpa_printf(MSG_DEBUG, "SME: Authentication failed (status "
267	"code %d)", data->auth.status_code);
268	return;
269	}
270
271	#ifdef CONFIG_IEEE80211R
272	if (data->auth.auth_type == WLAN_AUTH_FT) {
273	union wpa_event_data edata;
274	os_memset(&edata, 0, sizeof(edata));
275	edata.ft_ies.ies = data->auth.ies;
276	edata.ft_ies.ies_len = data->auth.ies_len;
277	os_memcpy(edata.ft_ies.target_ap, data->auth.peer, ETH_ALEN);
278	wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &edata);
279	}
280	#endif /* CONFIG_IEEE80211R */
281
282	os_memset(&params, 0, sizeof(params));
283	params.bssid = data->auth.peer;
284	params.ssid = wpa_s->sme.ssid;
285	params.ssid_len = wpa_s->sme.ssid_len;
286	params.freq = wpa_s->sme.freq;
287	params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
288	wpa_s->sme.assoc_req_ie : NULL;
289	params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
290	#ifdef CONFIG_IEEE80211R
291	if (data->auth.auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
292	params.wpa_ie = wpa_s->sme.ft_ies;
293	params.wpa_ie_len = wpa_s->sme.ft_ies_len;
294	}
295	#endif /* CONFIG_IEEE80211R */
296	params.mode = ssid->mode;
297	params.mgmt_frame_protection = wpa_s->sme.mfp;
298
299	wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
300	" (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
301	params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
302	params.freq);
303
304	wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
305
306	if (wpa_drv_associate(wpa_s, &params) < 0) {
307	wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
308	"failed");
309	return;
310	}
311
312	/* TODO: add timeout on association */
313	}
314
315
316	int sme_update_ft_ies(struct wpa_supplicant wpa_s, const u8 md,
317	const u8 *ies, size_t ies_len)
318	{
319	if (md == NULL \|\| ies == NULL) {
320	wpa_printf(MSG_DEBUG, "SME: Remove mobility domain");
321	os_free(wpa_s->sme.ft_ies);
322	wpa_s->sme.ft_ies = NULL;
323	wpa_s->sme.ft_ies_len = 0;
324	wpa_s->sme.ft_used = 0;
325	return 0;
326	}
327
328	os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
329	wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
330	os_free(wpa_s->sme.ft_ies);
331	wpa_s->sme.ft_ies = os_malloc(ies_len);
332	if (wpa_s->sme.ft_ies == NULL)
333	return -1;
334	os_memcpy(wpa_s->sme.ft_ies, ies, ies_len);
335	wpa_s->sme.ft_ies_len = ies_len;
336	return 0;
337	}