[thirdparty/hostap.git] / src / ap / wpa_auth_glue.c

/*
 * hostapd / WPA authenticator glue code
 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "utils/includes.h"

#include "utils/common.h"
#include "common/ieee802_11_defs.h"
#include "common/sae.h"
#include "eapol_auth/eapol_auth_sm.h"
#include "eapol_auth/eapol_auth_sm_i.h"
#include "eap_server/eap.h"
#include "l2_packet/l2_packet.h"
#include "hostapd.h"
#include "ieee802_1x.h"
#include "preauth_auth.h"
#include "sta_info.h"
#include "tkip_countermeasures.h"
#include "ap_drv_ops.h"
#include "ap_config.h"
#include "wpa_auth.h"
#include "wpa_auth_glue.h"


static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
				  struct hostapd_config *iconf,
				  struct wpa_auth_config *wconf)
{
	os_memset(wconf, 0, sizeof(*wconf));
	wconf->wpa = conf->wpa;
	wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
	wconf->wpa_pairwise = conf->wpa_pairwise;
	wconf->wpa_group = conf->wpa_group;
	wconf->wpa_group_rekey = conf->wpa_group_rekey;
	wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
	wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
	wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
	wconf->rsn_pairwise = conf->rsn_pairwise;
	wconf->rsn_preauth = conf->rsn_preauth;
	wconf->eapol_version = conf->eapol_version;
	wconf->peerkey = conf->peerkey;
	wconf->wmm_enabled = conf->wmm_enabled;
	wconf->wmm_uapsd = conf->wmm_uapsd;
	wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
	wconf->okc = conf->okc;
#ifdef CONFIG_IEEE80211W
	wconf->ieee80211w = conf->ieee80211w;
	wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
	wconf->ssid_len = conf->ssid.ssid_len;
	if (wconf->ssid_len > SSID_LEN)
		wconf->ssid_len = SSID_LEN;
	os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
	os_memcpy(wconf->mobility_domain, conf->mobility_domain,
		  MOBILITY_DOMAIN_ID_LEN);
	if (conf->nas_identifier &&
	    os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
		wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
		os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
			  wconf->r0_key_holder_len);
	}
	os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
	wconf->r0_key_lifetime = conf->r0_key_lifetime;
	wconf->reassociation_deadline = conf->reassociation_deadline;
	wconf->r0kh_list = conf->r0kh_list;
	wconf->r1kh_list = conf->r1kh_list;
	wconf->pmk_r1_push = conf->pmk_r1_push;
	wconf->ft_over_ds = conf->ft_over_ds;
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_HS20
	wconf->disable_gtk = conf->disable_dgaf;
	if (conf->osen) {
		wconf->disable_gtk = 1;
		wconf->wpa = WPA_PROTO_OSEN;
		wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
		wconf->wpa_pairwise = 0;
		wconf->wpa_group = WPA_CIPHER_CCMP;
		wconf->rsn_pairwise = WPA_CIPHER_CCMP;
		wconf->rsn_preauth = 0;
		wconf->disable_pmksa_caching = 1;
#ifdef CONFIG_IEEE80211W
		wconf->ieee80211w = 1;
#endif /* CONFIG_IEEE80211W */
	}
#endif /* CONFIG_HS20 */
#ifdef CONFIG_TESTING_OPTIONS
	wconf->corrupt_gtk_rekey_mic_probability =
		iconf->corrupt_gtk_rekey_mic_probability;
#endif /* CONFIG_TESTING_OPTIONS */
#ifdef CONFIG_P2P
	os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
	os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
	os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
	os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
#endif /* CONFIG_P2P */
}


static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
				    logger_level level, const char *txt)
{
#ifndef CONFIG_NO_HOSTAPD_LOGGER
	struct hostapd_data *hapd = ctx;
	int hlevel;

	switch (level) {
	case LOGGER_WARNING:
		hlevel = HOSTAPD_LEVEL_WARNING;
		break;
	case LOGGER_INFO:
		hlevel = HOSTAPD_LEVEL_INFO;
		break;
	case LOGGER_DEBUG:
	default:
		hlevel = HOSTAPD_LEVEL_DEBUG;
		break;
	}

	hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
#endif /* CONFIG_NO_HOSTAPD_LOGGER */
}


static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
					u16 reason)
{
	struct hostapd_data *hapd = ctx;
	wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
		   "STA " MACSTR " reason %d",
		   __func__, MAC2STR(addr), reason);
	ap_sta_disconnect(hapd, NULL, addr, reason);
}


static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
{
	struct hostapd_data *hapd = ctx;
	return michael_mic_failure(hapd, addr, 0);
}


static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
				       wpa_eapol_variable var, int value)
{
	struct hostapd_data *hapd = ctx;
	struct sta_info *sta = ap_get_sta(hapd, addr);
	if (sta == NULL)
		return;
	switch (var) {
	case WPA_EAPOL_portEnabled:
		ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
		break;
	case WPA_EAPOL_portValid:
		ieee802_1x_notify_port_valid(sta->eapol_sm, value);
		break;
	case WPA_EAPOL_authorized:
		ieee802_1x_set_sta_authorized(hapd, sta, value);
		break;
	case WPA_EAPOL_portControl_Auto:
		if (sta->eapol_sm)
			sta->eapol_sm->portControl = Auto;
		break;
	case WPA_EAPOL_keyRun:
		if (sta->eapol_sm)
			sta->eapol_sm->keyRun = value ? TRUE : FALSE;
		break;
	case WPA_EAPOL_keyAvailable:
		if (sta->eapol_sm)
			sta->eapol_sm->eap_if->eapKeyAvailable =
				value ? TRUE : FALSE;
		break;
	case WPA_EAPOL_keyDone:
		if (sta->eapol_sm)
			sta->eapol_sm->keyDone = value ? TRUE : FALSE;
		break;
	case WPA_EAPOL_inc_EapolFramesTx:
		if (sta->eapol_sm)
			sta->eapol_sm->dot1xAuthEapolFramesTx++;
		break;
	}
}


static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
				      wpa_eapol_variable var)
{
	struct hostapd_data *hapd = ctx;
	struct sta_info *sta = ap_get_sta(hapd, addr);
	if (sta == NULL || sta->eapol_sm == NULL)
		return -1;
	switch (var) {
	case WPA_EAPOL_keyRun:
		return sta->eapol_sm->keyRun;
	case WPA_EAPOL_keyAvailable:
		return sta->eapol_sm->eap_if->eapKeyAvailable;
	default:
		return -1;
	}
}


static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
					   const u8 *p2p_dev_addr,
					   const u8 *prev_psk)
{
	struct hostapd_data *hapd = ctx;
	struct sta_info *sta = ap_get_sta(hapd, addr);
	const u8 *psk;

#ifdef CONFIG_SAE
	if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
		if (!sta->sae || prev_psk)
			return NULL;
		return sta->sae->pmk;
	}
#endif /* CONFIG_SAE */

	psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
	/*
	 * This is about to iterate over all psks, prev_psk gives the last
	 * returned psk which should not be returned again.
	 * logic list (all hostapd_get_psk; all sta->psk)
	 */
	if (sta && sta->psk && !psk) {
		struct hostapd_sta_wpa_psk_short *pos;
		psk = sta->psk->psk;
		for (pos = sta->psk; pos; pos = pos->next) {
			if (pos->psk == prev_psk) {
				psk = pos->next ? pos->next->psk : NULL;
				break;
			}
		}
	}
	return psk;
}


static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
				    size_t *len)
{
	struct hostapd_data *hapd = ctx;
	const u8 *key;
	size_t keylen;
	struct sta_info *sta;

	sta = ap_get_sta(hapd, addr);
	if (sta == NULL)
		return -1;

	key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
	if (key == NULL)
		return -1;

	if (keylen > *len)
		keylen = *len;
	os_memcpy(msk, key, keylen);
	*len = keylen;

	return 0;
}


static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
				    const u8 *addr, int idx, u8 *key,
				    size_t key_len)
{
	struct hostapd_data *hapd = ctx;
	const char *ifname = hapd->conf->iface;

	if (vlan_id > 0) {
		ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
		if (ifname == NULL)
			return -1;
	}

	return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
				   key, key_len);
}


static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
				       u8 *seq)
{
	struct hostapd_data *hapd = ctx;
	return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
}


static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
				       const u8 *data, size_t data_len,
				       int encrypt)
{
	struct hostapd_data *hapd = ctx;
	struct sta_info *sta;
	u32 flags = 0;

	sta = ap_get_sta(hapd, addr);
	if (sta)
		flags = hostapd_sta_flags_to_drv(sta->flags);

	return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
					   encrypt, flags);
}


static int hostapd_wpa_auth_for_each_sta(
	void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
	void *cb_ctx)
{
	struct hostapd_data *hapd = ctx;
	struct sta_info *sta;

	for (sta = hapd->sta_list; sta; sta = sta->next) {
		if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
			return 1;
	}
	return 0;
}


struct wpa_auth_iface_iter_data {
	int (*cb)(struct wpa_authenticator *sm, void *ctx);
	void *cb_ctx;
};

static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
{
	struct wpa_auth_iface_iter_data *data = ctx;
	size_t i;
	for (i = 0; i < iface->num_bss; i++) {
		if (iface->bss[i]->wpa_auth &&
		    data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
			return 1;
	}
	return 0;
}


static int hostapd_wpa_auth_for_each_auth(
	void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
	void *cb_ctx)
{
	struct hostapd_data *hapd = ctx;
	struct wpa_auth_iface_iter_data data;
	if (hapd->iface->interfaces == NULL ||
	    hapd->iface->interfaces->for_each_interface == NULL)
		return -1;
	data.cb = cb;
	data.cb_ctx = cb_ctx;
	return hapd->iface->interfaces->for_each_interface(
		hapd->iface->interfaces, wpa_auth_iface_iter, &data);
}


#ifdef CONFIG_IEEE80211R

struct wpa_auth_ft_iface_iter_data {
	struct hostapd_data *src_hapd;
	const u8 *dst;
	const u8 *data;
	size_t data_len;
};


static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
{
	struct wpa_auth_ft_iface_iter_data *idata = ctx;
	struct hostapd_data *hapd;
	size_t j;

	for (j = 0; j < iface->num_bss; j++) {
		hapd = iface->bss[j];
		if (hapd == idata->src_hapd)
			continue;
		if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
			wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
				   "locally managed BSS " MACSTR "@%s -> "
				   MACSTR "@%s",
				   MAC2STR(idata->src_hapd->own_addr),
				   idata->src_hapd->conf->iface,
				   MAC2STR(hapd->own_addr), hapd->conf->iface);
			wpa_ft_rrb_rx(hapd->wpa_auth,
				      idata->src_hapd->own_addr,
				      idata->data, idata->data_len);
			return 1;
		}
	}

	return 0;
}

#endif /* CONFIG_IEEE80211R */


static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
				       const u8 *data, size_t data_len)
{
	struct hostapd_data *hapd = ctx;
	struct l2_ethhdr *buf;
	int ret;

#ifdef CONFIG_IEEE80211R
	if (proto == ETH_P_RRB && hapd->iface->interfaces &&
	    hapd->iface->interfaces->for_each_interface) {
		int res;
		struct wpa_auth_ft_iface_iter_data idata;
		idata.src_hapd = hapd;
		idata.dst = dst;
		idata.data = data;
		idata.data_len = data_len;
		res = hapd->iface->interfaces->for_each_interface(
			hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
			&idata);
		if (res == 1)
			return data_len;
	}
#endif /* CONFIG_IEEE80211R */

	if (hapd->driver && hapd->driver->send_ether)
		return hapd->driver->send_ether(hapd->drv_priv, dst,
						hapd->own_addr, proto,
						data, data_len);
	if (hapd->l2 == NULL)
		return -1;

	buf = os_malloc(sizeof(*buf) + data_len);
	if (buf == NULL)
		return -1;
	os_memcpy(buf->h_dest, dst, ETH_ALEN);
	os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
	buf->h_proto = host_to_be16(proto);
	os_memcpy(buf + 1, data, data_len);
	ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
			     sizeof(*buf) + data_len);
	os_free(buf);
	return ret;
}


#ifdef CONFIG_IEEE80211R

static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
					   const u8 *data, size_t data_len)
{
	struct hostapd_data *hapd = ctx;
	int res;
	struct ieee80211_mgmt *m;
	size_t mlen;
	struct sta_info *sta;

	sta = ap_get_sta(hapd, dst);
	if (sta == NULL || sta->wpa_sm == NULL)
		return -1;

	m = os_zalloc(sizeof(*m) + data_len);
	if (m == NULL)
		return -1;
	mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
	m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
					WLAN_FC_STYPE_ACTION);
	os_memcpy(m->da, dst, ETH_ALEN);
	os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
	os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
	os_memcpy(&m->u, data, data_len);

	res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
	os_free(m);
	return res;
}


static struct wpa_state_machine *
hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
{
	struct hostapd_data *hapd = ctx;
	struct sta_info *sta;

	if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
		return NULL;

	sta = ap_sta_add(hapd, sta_addr);
	if (sta == NULL)
		return NULL;
	if (sta->wpa_sm) {
		sta->auth_alg = WLAN_AUTH_FT;
		return sta->wpa_sm;
	}

	sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
	if (sta->wpa_sm == NULL) {
		ap_free_sta(hapd, sta);
		return NULL;
	}
	sta->auth_alg = WLAN_AUTH_FT;

	return sta->wpa_sm;
}


static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
				size_t len)
{
	struct hostapd_data *hapd = ctx;
	struct l2_ethhdr *ethhdr;
	if (len < sizeof(*ethhdr))
		return;
	ethhdr = (struct l2_ethhdr *) buf;
	wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
		   MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
	wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
		      len - sizeof(*ethhdr));
}


static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
				      u8 *tspec_ie, size_t tspec_ielen)
{
	struct hostapd_data *hapd = ctx;
	return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
}

#endif /* CONFIG_IEEE80211R */


int hostapd_setup_wpa(struct hostapd_data *hapd)
{
	struct wpa_auth_config _conf;
	struct wpa_auth_callbacks cb;
	const u8 *wpa_ie;
	size_t wpa_ie_len;

	hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
	if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
		_conf.tx_status = 1;
	if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
		_conf.ap_mlme = 1;
	os_memset(&cb, 0, sizeof(cb));
	cb.ctx = hapd;
	cb.logger = hostapd_wpa_auth_logger;
	cb.disconnect = hostapd_wpa_auth_disconnect;
	cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
	cb.set_eapol = hostapd_wpa_auth_set_eapol;
	cb.get_eapol = hostapd_wpa_auth_get_eapol;
	cb.get_psk = hostapd_wpa_auth_get_psk;
	cb.get_msk = hostapd_wpa_auth_get_msk;
	cb.set_key = hostapd_wpa_auth_set_key;
	cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
	cb.send_eapol = hostapd_wpa_auth_send_eapol;
	cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
	cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
	cb.send_ether = hostapd_wpa_auth_send_ether;
#ifdef CONFIG_IEEE80211R
	cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
	cb.add_sta = hostapd_wpa_auth_add_sta;
	cb.add_tspec = hostapd_wpa_auth_add_tspec;
#endif /* CONFIG_IEEE80211R */
	hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
	if (hapd->wpa_auth == NULL) {
		wpa_printf(MSG_ERROR, "WPA initialization failed.");
		return -1;
	}

	if (hostapd_set_privacy(hapd, 1)) {
		wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
			   "for interface %s", hapd->conf->iface);
		return -1;
	}

	wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
	if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
		wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
			   "the kernel driver.");
		return -1;
	}

	if (rsn_preauth_iface_init(hapd)) {
		wpa_printf(MSG_ERROR, "Initialization of RSN "
			   "pre-authentication failed.");
		return -1;
	}

#ifdef CONFIG_IEEE80211R
	if (!hostapd_drv_none(hapd)) {
		hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
					  hapd->conf->bridge :
					  hapd->conf->iface, NULL, ETH_P_RRB,
					  hostapd_rrb_receive, hapd, 1);
		if (hapd->l2 == NULL &&
		    (hapd->driver == NULL ||
		     hapd->driver->send_ether == NULL)) {
			wpa_printf(MSG_ERROR, "Failed to open l2_packet "
				   "interface");
			return -1;
		}
	}
#endif /* CONFIG_IEEE80211R */

	return 0;

}


void hostapd_reconfig_wpa(struct hostapd_data *hapd)
{
	struct wpa_auth_config wpa_auth_conf;
	hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
	wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
}


void hostapd_deinit_wpa(struct hostapd_data *hapd)
{
	ieee80211_tkip_countermeasures_deinit(hapd);
	rsn_preauth_iface_deinit(hapd);
	if (hapd->wpa_auth) {
		wpa_deinit(hapd->wpa_auth);
		hapd->wpa_auth = NULL;

		if (hostapd_set_privacy(hapd, 0)) {
			wpa_printf(MSG_DEBUG, "Could not disable "
				   "PrivacyInvoked for interface %s",
				   hapd->conf->iface);
		}

		if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
			wpa_printf(MSG_DEBUG, "Could not remove generic "
				   "information element from interface %s",
				   hapd->conf->iface);
		}
	}
	ieee802_1x_deinit(hapd);

#ifdef CONFIG_IEEE80211R
	l2_packet_deinit(hapd->l2);
	hapd->l2 = NULL;
#endif /* CONFIG_IEEE80211R */
}
Commit	Line	Data
c442055e JM	1	/*
c442055e JM	2	* hostapd / WPA authenticator glue code
47b55a3e	3	* Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
c442055e	4	*
0f3d578e JM	5	* This software may be distributed under the terms of the BSD license.
0f3d578e JM	6	* See README for more details.
c442055e JM	7	*/
	8
	9	#include "utils/includes.h"
	10
	11	#include "utils/common.h"
	12	#include "common/ieee802_11_defs.h"
47b55a3e	13	#include "common/sae.h"
c442055e JM	14	#include "eapol_auth/eapol_auth_sm.h"
	15	#include "eapol_auth/eapol_auth_sm_i.h"
	16	#include "eap_server/eap.h"
	17	#include "l2_packet/l2_packet.h"
6226e38d JM	18	#include "hostapd.h"
	19	#include "ieee802_1x.h"
	20	#include "preauth_auth.h"
	21	#include "sta_info.h"
	22	#include "tkip_countermeasures.h"
8b06c1ed JM	23	#include "ap_drv_ops.h"
	24	#include "ap_config.h"
	25	#include "wpa_auth.h"
373f6c72	26	#include "wpa_auth_glue.h"
c442055e JM	27
	28
	29	static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
7af092a0	30	struct hostapd_config *iconf,
c442055e JM	31	struct wpa_auth_config *wconf)
c442055e JM	32	{
d28b43f6	33	os_memset(wconf, 0, sizeof(*wconf));
c442055e JM	34	wconf->wpa = conf->wpa;
	35	wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
	36	wconf->wpa_pairwise = conf->wpa_pairwise;
	37	wconf->wpa_group = conf->wpa_group;
	38	wconf->wpa_group_rekey = conf->wpa_group_rekey;
	39	wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
	40	wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
	41	wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
	42	wconf->rsn_pairwise = conf->rsn_pairwise;
	43	wconf->rsn_preauth = conf->rsn_preauth;
	44	wconf->eapol_version = conf->eapol_version;
	45	wconf->peerkey = conf->peerkey;
	46	wconf->wmm_enabled = conf->wmm_enabled;
721abef9	47	wconf->wmm_uapsd = conf->wmm_uapsd;
cb465555	48	wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
c442055e JM	49	wconf->okc = conf->okc;
	50	#ifdef CONFIG_IEEE80211W
	51	wconf->ieee80211w = conf->ieee80211w;
8dd9f9cd	52	wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
c442055e JM	53	#endif /* CONFIG_IEEE80211W */
	54	#ifdef CONFIG_IEEE80211R
	55	wconf->ssid_len = conf->ssid.ssid_len;
	56	if (wconf->ssid_len > SSID_LEN)
	57	wconf->ssid_len = SSID_LEN;
	58	os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
	59	os_memcpy(wconf->mobility_domain, conf->mobility_domain,
	60	MOBILITY_DOMAIN_ID_LEN);
	61	if (conf->nas_identifier &&
	62	os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
	63	wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
	64	os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
	65	wconf->r0_key_holder_len);
	66	}
	67	os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
	68	wconf->r0_key_lifetime = conf->r0_key_lifetime;
	69	wconf->reassociation_deadline = conf->reassociation_deadline;
	70	wconf->r0kh_list = conf->r0kh_list;
	71	wconf->r1kh_list = conf->r1kh_list;
	72	wconf->pmk_r1_push = conf->pmk_r1_push;
d7956add	73	wconf->ft_over_ds = conf->ft_over_ds;
c442055e	74	#endif /* CONFIG_IEEE80211R */
83421850 JM	75	#ifdef CONFIG_HS20
83421850 JM	76	wconf->disable_gtk = conf->disable_dgaf;
a14896e8 JM	77	if (conf->osen) {
	78	wconf->disable_gtk = 1;
	79	wconf->wpa = WPA_PROTO_OSEN;
	80	wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
	81	wconf->wpa_pairwise = 0;
	82	wconf->wpa_group = WPA_CIPHER_CCMP;
	83	wconf->rsn_pairwise = WPA_CIPHER_CCMP;
	84	wconf->rsn_preauth = 0;
	85	wconf->disable_pmksa_caching = 1;
	86	#ifdef CONFIG_IEEE80211W
	87	wconf->ieee80211w = 1;
	88	#endif /* CONFIG_IEEE80211W */
	89	}
83421850	90	#endif /* CONFIG_HS20 */
7af092a0 JB	91	#ifdef CONFIG_TESTING_OPTIONS
	92	wconf->corrupt_gtk_rekey_mic_probability =
	93	iconf->corrupt_gtk_rekey_mic_probability;
	94	#endif /* CONFIG_TESTING_OPTIONS */
25ef8529 JM	95	#ifdef CONFIG_P2P
	96	os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
	97	os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
	98	os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
	99	os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
	100	#endif /* CONFIG_P2P */
c442055e JM	101	}
	102
	103
	104	static void hostapd_wpa_auth_logger(void ctx, const u8 addr,
	105	logger_level level, const char *txt)
	106	{
	107	#ifndef CONFIG_NO_HOSTAPD_LOGGER
	108	struct hostapd_data *hapd = ctx;
	109	int hlevel;
	110
	111	switch (level) {
	112	case LOGGER_WARNING:
	113	hlevel = HOSTAPD_LEVEL_WARNING;
	114	break;
	115	case LOGGER_INFO:
	116	hlevel = HOSTAPD_LEVEL_INFO;
	117	break;
	118	case LOGGER_DEBUG:
	119	default:
	120	hlevel = HOSTAPD_LEVEL_DEBUG;
	121	break;
	122	}
	123
	124	hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
	125	#endif /* CONFIG_NO_HOSTAPD_LOGGER */
	126	}
	127
	128
	129	static void hostapd_wpa_auth_disconnect(void ctx, const u8 addr,
	130	u16 reason)
	131	{
	132	struct hostapd_data *hapd = ctx;
	133	wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
	134	"STA " MACSTR " reason %d",
	135	__func__, MAC2STR(addr), reason);
	136	ap_sta_disconnect(hapd, NULL, addr, reason);
	137	}
	138
	139
c772d054	140	static int hostapd_wpa_auth_mic_failure_report(void ctx, const u8 addr)
c442055e JM	141	{
c442055e JM	142	struct hostapd_data *hapd = ctx;
c772d054	143	return michael_mic_failure(hapd, addr, 0);
c442055e JM	144	}
	145
	146
	147	static void hostapd_wpa_auth_set_eapol(void ctx, const u8 addr,
	148	wpa_eapol_variable var, int value)
	149	{
	150	struct hostapd_data *hapd = ctx;
	151	struct sta_info *sta = ap_get_sta(hapd, addr);
	152	if (sta == NULL)
	153	return;
	154	switch (var) {
	155	case WPA_EAPOL_portEnabled:
	156	ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
	157	break;
	158	case WPA_EAPOL_portValid:
	159	ieee802_1x_notify_port_valid(sta->eapol_sm, value);
	160	break;
	161	case WPA_EAPOL_authorized:
	162	ieee802_1x_set_sta_authorized(hapd, sta, value);
	163	break;
	164	case WPA_EAPOL_portControl_Auto:
	165	if (sta->eapol_sm)
	166	sta->eapol_sm->portControl = Auto;
	167	break;
	168	case WPA_EAPOL_keyRun:
	169	if (sta->eapol_sm)
	170	sta->eapol_sm->keyRun = value ? TRUE : FALSE;
	171	break;
	172	case WPA_EAPOL_keyAvailable:
	173	if (sta->eapol_sm)
	174	sta->eapol_sm->eap_if->eapKeyAvailable =
	175	value ? TRUE : FALSE;
	176	break;
	177	case WPA_EAPOL_keyDone:
	178	if (sta->eapol_sm)
	179	sta->eapol_sm->keyDone = value ? TRUE : FALSE;
	180	break;
	181	case WPA_EAPOL_inc_EapolFramesTx:
	182	if (sta->eapol_sm)
	183	sta->eapol_sm->dot1xAuthEapolFramesTx++;
	184	break;
	185	}
	186	}
	187
	188
	189	static int hostapd_wpa_auth_get_eapol(void ctx, const u8 addr,
	190	wpa_eapol_variable var)
	191	{
	192	struct hostapd_data *hapd = ctx;
	193	struct sta_info *sta = ap_get_sta(hapd, addr);
	194	if (sta == NULL \|\| sta->eapol_sm == NULL)
	195	return -1;
	196	switch (var) {
	197	case WPA_EAPOL_keyRun:
	198	return sta->eapol_sm->keyRun;
	199	case WPA_EAPOL_keyAvailable:
	200	return sta->eapol_sm->eap_if->eapKeyAvailable;
	201	default:
	202	return -1;
	203	}
	204	}
	205
	206
	207	static const u8 * hostapd_wpa_auth_get_psk(void ctx, const u8 addr,
759fd76b	208	const u8 *p2p_dev_addr,
c442055e JM	209	const u8 *prev_psk)
	210	{
	211	struct hostapd_data *hapd = ctx;
05ab9712	212	struct sta_info *sta = ap_get_sta(hapd, addr);
47b55a3e JM	213	const u8 *psk;
	214
	215	#ifdef CONFIG_SAE
	216	if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
	217	if (!sta->sae \|\| prev_psk)
	218	return NULL;
	219	return sta->sae->pmk;
	220	}
	221	#endif /* CONFIG_SAE */
	222
759fd76b	223	psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
59dff51d MB	224	/*
	225	* This is about to iterate over all psks, prev_psk gives the last
	226	* returned psk which should not be returned again.
5ee56c4e	227	* logic list (all hostapd_get_psk; all sta->psk)
59dff51d	228	*/
5ee56c4e MB	229	if (sta && sta->psk && !psk) {
	230	struct hostapd_sta_wpa_psk_short *pos;
	231	psk = sta->psk->psk;
	232	for (pos = sta->psk; pos; pos = pos->next) {
	233	if (pos->psk == prev_psk) {
	234	psk = pos->next ? pos->next->psk : NULL;
	235	break;
	236	}
	237	}
	238	}
59dff51d	239	return psk;
c442055e JM	240	}
	241
	242
	243	static int hostapd_wpa_auth_get_msk(void ctx, const u8 addr, u8 *msk,
	244	size_t *len)
	245	{
	246	struct hostapd_data *hapd = ctx;
	247	const u8 *key;
	248	size_t keylen;
	249	struct sta_info *sta;
	250
	251	sta = ap_get_sta(hapd, addr);
	252	if (sta == NULL)
	253	return -1;
	254
	255	key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
	256	if (key == NULL)
	257	return -1;
	258
	259	if (keylen > *len)
	260	keylen = *len;
	261	os_memcpy(msk, key, keylen);
	262	*len = keylen;
	263
	264	return 0;
	265	}
	266
	267
71934751	268	static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
c442055e JM	269	const u8 addr, int idx, u8 key,
	270	size_t key_len)
	271	{
	272	struct hostapd_data *hapd = ctx;
	273	const char *ifname = hapd->conf->iface;
	274
	275	if (vlan_id > 0) {
	276	ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
	277	if (ifname == NULL)
	278	return -1;
	279	}
	280
3acdf771 JM	281	return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
3acdf771 JM	282	key, key_len);
c442055e JM	283	}
	284
	285
	286	static int hostapd_wpa_auth_get_seqnum(void ctx, const u8 addr, int idx,
	287	u8 *seq)
	288	{
	289	struct hostapd_data *hapd = ctx;
	290	return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
	291	}
	292
	293
	294	static int hostapd_wpa_auth_send_eapol(void ctx, const u8 addr,
	295	const u8 *data, size_t data_len,
	296	int encrypt)
	297	{
	298	struct hostapd_data *hapd = ctx;
4378fc14 FF	299	struct sta_info *sta;
	300	u32 flags = 0;
	301
	302	sta = ap_get_sta(hapd, addr);
	303	if (sta)
	304	flags = hostapd_sta_flags_to_drv(sta->flags);
	305
3acdf771	306	return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
4378fc14	307	encrypt, flags);
c442055e JM	308	}
	309
	310
	311	static int hostapd_wpa_auth_for_each_sta(
	312	void ctx, int (cb)(struct wpa_state_machine sm, void ctx),
	313	void *cb_ctx)
	314	{
	315	struct hostapd_data *hapd = ctx;
	316	struct sta_info *sta;
	317
	318	for (sta = hapd->sta_list; sta; sta = sta->next) {
	319	if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
	320	return 1;
	321	}
	322	return 0;
	323	}
	324
	325
	326	struct wpa_auth_iface_iter_data {
	327	int (cb)(struct wpa_authenticator sm, void *ctx);
	328	void *cb_ctx;
	329	};
	330
	331	static int wpa_auth_iface_iter(struct hostapd_iface iface, void ctx)
	332	{
	333	struct wpa_auth_iface_iter_data *data = ctx;
	334	size_t i;
	335	for (i = 0; i < iface->num_bss; i++) {
03bcb0af JM	336	if (iface->bss[i]->wpa_auth &&
03bcb0af JM	337	data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
c442055e JM	338	return 1;
	339	}
	340	return 0;
	341	}
	342
	343
	344	static int hostapd_wpa_auth_for_each_auth(
	345	void ctx, int (cb)(struct wpa_authenticator sm, void ctx),
	346	void *cb_ctx)
	347	{
	348	struct hostapd_data *hapd = ctx;
	349	struct wpa_auth_iface_iter_data data;
3776ac73 JM	350	if (hapd->iface->interfaces == NULL \|\|
3776ac73 JM	351	hapd->iface->interfaces->for_each_interface == NULL)
1b56c26c	352	return -1;
c442055e JM	353	data.cb = cb;
c442055e JM	354	data.cb_ctx = cb_ctx;
3776ac73 JM	355	return hapd->iface->interfaces->for_each_interface(
3776ac73 JM	356	hapd->iface->interfaces, wpa_auth_iface_iter, &data);
c442055e JM	357	}
	358
	359
67ccef7e JM	360	#ifdef CONFIG_IEEE80211R
	361
	362	struct wpa_auth_ft_iface_iter_data {
	363	struct hostapd_data *src_hapd;
	364	const u8 *dst;
	365	const u8 *data;
	366	size_t data_len;
	367	};
	368
	369
	370	static int hostapd_wpa_auth_ft_iter(struct hostapd_iface iface, void ctx)
	371	{
	372	struct wpa_auth_ft_iface_iter_data *idata = ctx;
	373	struct hostapd_data *hapd;
	374	size_t j;
	375
	376	for (j = 0; j < iface->num_bss; j++) {
	377	hapd = iface->bss[j];
	378	if (hapd == idata->src_hapd)
	379	continue;
	380	if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
	381	wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
	382	"locally managed BSS " MACSTR "@%s -> "
	383	MACSTR "@%s",
	384	MAC2STR(idata->src_hapd->own_addr),
	385	idata->src_hapd->conf->iface,
	386	MAC2STR(hapd->own_addr), hapd->conf->iface);
7e031850 JM	387	wpa_ft_rrb_rx(hapd->wpa_auth,
	388	idata->src_hapd->own_addr,
	389	idata->data, idata->data_len);
67ccef7e JM	390	return 1;
	391	}
	392	}
	393
	394	return 0;
	395	}
	396
	397	#endif /* CONFIG_IEEE80211R */
	398
	399
c442055e JM	400	static int hostapd_wpa_auth_send_ether(void ctx, const u8 dst, u16 proto,
	401	const u8 *data, size_t data_len)
	402	{
	403	struct hostapd_data *hapd = ctx;
7e031850 JM	404	struct l2_ethhdr *buf;
7e031850 JM	405	int ret;
c442055e	406
67ccef7e	407	#ifdef CONFIG_IEEE80211R
3776ac73 JM	408	if (proto == ETH_P_RRB && hapd->iface->interfaces &&
3776ac73 JM	409	hapd->iface->interfaces->for_each_interface) {
67ccef7e JM	410	int res;
	411	struct wpa_auth_ft_iface_iter_data idata;
	412	idata.src_hapd = hapd;
	413	idata.dst = dst;
	414	idata.data = data;
	415	idata.data_len = data_len;
3776ac73 JM	416	res = hapd->iface->interfaces->for_each_interface(
	417	hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
	418	&idata);
67ccef7e JM	419	if (res == 1)
	420	return data_len;
	421	}
	422	#endif /* CONFIG_IEEE80211R */
	423
c442055e JM	424	if (hapd->driver && hapd->driver->send_ether)
	425	return hapd->driver->send_ether(hapd->drv_priv, dst,
	426	hapd->own_addr, proto,
	427	data, data_len);
	428	if (hapd->l2 == NULL)
	429	return -1;
7e031850 JM	430
	431	buf = os_malloc(sizeof(*buf) + data_len);
	432	if (buf == NULL)
	433	return -1;
	434	os_memcpy(buf->h_dest, dst, ETH_ALEN);
	435	os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
	436	buf->h_proto = host_to_be16(proto);
	437	os_memcpy(buf + 1, data, data_len);
	438	ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
	439	sizeof(*buf) + data_len);
	440	os_free(buf);
2683690d	441	return ret;
c442055e JM	442	}
	443
	444
	445	#ifdef CONFIG_IEEE80211R
	446
	447	static int hostapd_wpa_auth_send_ft_action(void ctx, const u8 dst,
	448	const u8 *data, size_t data_len)
	449	{
	450	struct hostapd_data *hapd = ctx;
	451	int res;
	452	struct ieee80211_mgmt *m;
	453	size_t mlen;
	454	struct sta_info *sta;
	455
	456	sta = ap_get_sta(hapd, dst);
	457	if (sta == NULL \|\| sta->wpa_sm == NULL)
	458	return -1;
	459
	460	m = os_zalloc(sizeof(*m) + data_len);
	461	if (m == NULL)
	462	return -1;
	463	mlen = ((u8 ) &m->u - (u8 ) m) + data_len;
	464	m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
	465	WLAN_FC_STYPE_ACTION);
	466	os_memcpy(m->da, dst, ETH_ALEN);
	467	os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
	468	os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
	469	os_memcpy(&m->u, data, data_len);
	470
8cfa3527	471	res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
c442055e JM	472	os_free(m);
	473	return res;
	474	}
	475
	476
	477	static struct wpa_state_machine *
	478	hostapd_wpa_auth_add_sta(void ctx, const u8 sta_addr)
	479	{
	480	struct hostapd_data *hapd = ctx;
	481	struct sta_info *sta;
	482
88b32a99 SP	483	if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
	484	return NULL;
	485
c442055e JM	486	sta = ap_sta_add(hapd, sta_addr);
	487	if (sta == NULL)
	488	return NULL;
21c9b690 JM	489	if (sta->wpa_sm) {
21c9b690 JM	490	sta->auth_alg = WLAN_AUTH_FT;
c442055e	491	return sta->wpa_sm;
21c9b690	492	}
c442055e	493
94ddef3e	494	sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
c442055e JM	495	if (sta->wpa_sm == NULL) {
	496	ap_free_sta(hapd, sta);
	497	return NULL;
	498	}
	499	sta->auth_alg = WLAN_AUTH_FT;
	500
	501	return sta->wpa_sm;
	502	}
	503
	504
	505	static void hostapd_rrb_receive(void ctx, const u8 src_addr, const u8 *buf,
	506	size_t len)
	507	{
	508	struct hostapd_data *hapd = ctx;
7e031850 JM	509	struct l2_ethhdr *ethhdr;
	510	if (len < sizeof(*ethhdr))
	511	return;
	512	ethhdr = (struct l2_ethhdr *) buf;
	513	wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
	514	MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
	515	wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
	516	len - sizeof(*ethhdr));
c442055e JM	517	}
c442055e JM	518
88b32a99 SP	519
	520	static int hostapd_wpa_auth_add_tspec(void ctx, const u8 sta_addr,
	521	u8 *tspec_ie, size_t tspec_ielen)
	522	{
	523	struct hostapd_data *hapd = ctx;
	524	return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
	525	}
	526
c442055e JM	527	#endif /* CONFIG_IEEE80211R */
	528
	529
	530	int hostapd_setup_wpa(struct hostapd_data *hapd)
	531	{
	532	struct wpa_auth_config _conf;
	533	struct wpa_auth_callbacks cb;
	534	const u8 *wpa_ie;
	535	size_t wpa_ie_len;
	536
7af092a0	537	hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
e4bf4db9 JM	538	if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
e4bf4db9 JM	539	_conf.tx_status = 1;
88b32a99 SP	540	if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
88b32a99 SP	541	_conf.ap_mlme = 1;
c442055e JM	542	os_memset(&cb, 0, sizeof(cb));
	543	cb.ctx = hapd;
	544	cb.logger = hostapd_wpa_auth_logger;
	545	cb.disconnect = hostapd_wpa_auth_disconnect;
	546	cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
	547	cb.set_eapol = hostapd_wpa_auth_set_eapol;
	548	cb.get_eapol = hostapd_wpa_auth_get_eapol;
	549	cb.get_psk = hostapd_wpa_auth_get_psk;
	550	cb.get_msk = hostapd_wpa_auth_get_msk;
	551	cb.set_key = hostapd_wpa_auth_set_key;
	552	cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
	553	cb.send_eapol = hostapd_wpa_auth_send_eapol;
	554	cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
	555	cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
	556	cb.send_ether = hostapd_wpa_auth_send_ether;
	557	#ifdef CONFIG_IEEE80211R
	558	cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
	559	cb.add_sta = hostapd_wpa_auth_add_sta;
88b32a99	560	cb.add_tspec = hostapd_wpa_auth_add_tspec;
c442055e JM	561	#endif /* CONFIG_IEEE80211R */
	562	hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
	563	if (hapd->wpa_auth == NULL) {
	564	wpa_printf(MSG_ERROR, "WPA initialization failed.");
	565	return -1;
	566	}
	567
	568	if (hostapd_set_privacy(hapd, 1)) {
	569	wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
	570	"for interface %s", hapd->conf->iface);
	571	return -1;
	572	}
	573
	574	wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
	575	if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
	576	wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
	577	"the kernel driver.");
	578	return -1;
	579	}
	580
	581	if (rsn_preauth_iface_init(hapd)) {
	582	wpa_printf(MSG_ERROR, "Initialization of RSN "
	583	"pre-authentication failed.");
	584	return -1;
	585	}
	586
	587	#ifdef CONFIG_IEEE80211R
	588	if (!hostapd_drv_none(hapd)) {
22208211 JM	589	hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
	590	hapd->conf->bridge :
	591	hapd->conf->iface, NULL, ETH_P_RRB,
7e031850	592	hostapd_rrb_receive, hapd, 1);
c442055e JM	593	if (hapd->l2 == NULL &&
	594	(hapd->driver == NULL \|\|
	595	hapd->driver->send_ether == NULL)) {
	596	wpa_printf(MSG_ERROR, "Failed to open l2_packet "
	597	"interface");
	598	return -1;
	599	}
	600	}
	601	#endif /* CONFIG_IEEE80211R */
	602
	603	return 0;
	604
	605	}
	606
	607
	608	void hostapd_reconfig_wpa(struct hostapd_data *hapd)
	609	{
	610	struct wpa_auth_config wpa_auth_conf;
7af092a0	611	hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
c442055e JM	612	wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
	613	}
	614
	615
	616	void hostapd_deinit_wpa(struct hostapd_data *hapd)
	617	{
01a17491	618	ieee80211_tkip_countermeasures_deinit(hapd);
c442055e JM	619	rsn_preauth_iface_deinit(hapd);
	620	if (hapd->wpa_auth) {
	621	wpa_deinit(hapd->wpa_auth);
	622	hapd->wpa_auth = NULL;
	623
	624	if (hostapd_set_privacy(hapd, 0)) {
	625	wpa_printf(MSG_DEBUG, "Could not disable "
	626	"PrivacyInvoked for interface %s",
	627	hapd->conf->iface);
	628	}
	629
	630	if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
	631	wpa_printf(MSG_DEBUG, "Could not remove generic "
	632	"information element from interface %s",
	633	hapd->conf->iface);
	634	}
	635	}
	636	ieee802_1x_deinit(hapd);
	637
	638	#ifdef CONFIG_IEEE80211R
	639	l2_packet_deinit(hapd->l2);
66f4dd15	640	hapd->l2 = NULL;
c442055e JM	641	#endif /* CONFIG_IEEE80211R */
c442055e JM	642	}