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      1 /*
      2  * WPA Supplicant - Basic AP mode support routines
      3  * Copyright (c) 2003-2009, Jouni Malinen <j (at) w1.fi>
      4  * Copyright (c) 2009, Atheros Communications
      5  *
      6  * This software may be distributed under the terms of the BSD license.
      7  * See README for more details.
      8  */
      9 
     10 #include "utils/includes.h"
     11 
     12 #include "utils/common.h"
     13 #include "utils/eloop.h"
     14 #include "utils/uuid.h"
     15 #include "common/ieee802_11_defs.h"
     16 #include "common/wpa_ctrl.h"
     17 #include "eapol_supp/eapol_supp_sm.h"
     18 #include "crypto/dh_group5.h"
     19 #include "ap/hostapd.h"
     20 #include "ap/ap_config.h"
     21 #include "ap/ap_drv_ops.h"
     22 #ifdef NEED_AP_MLME
     23 #include "ap/ieee802_11.h"
     24 #endif /* NEED_AP_MLME */
     25 #include "ap/beacon.h"
     26 #include "ap/ieee802_1x.h"
     27 #include "ap/wps_hostapd.h"
     28 #include "ap/ctrl_iface_ap.h"
     29 #include "ap/dfs.h"
     30 #include "wps/wps.h"
     31 #include "common/ieee802_11_defs.h"
     32 #include "config_ssid.h"
     33 #include "config.h"
     34 #include "wpa_supplicant_i.h"
     35 #include "driver_i.h"
     36 #include "p2p_supplicant.h"
     37 #include "ap.h"
     38 #include "ap/sta_info.h"
     39 #include "notify.h"
     40 
     41 
     42 #ifdef CONFIG_WPS
     43 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
     44 #endif /* CONFIG_WPS */
     45 
     46 
     47 #ifdef CONFIG_IEEE80211N
     48 static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
     49 			     struct hostapd_config *conf,
     50 			     struct hostapd_hw_modes *mode)
     51 {
     52 #ifdef CONFIG_P2P
     53 	u8 center_chan = 0;
     54 	u8 channel = conf->channel;
     55 
     56 	if (!conf->secondary_channel)
     57 		goto no_vht;
     58 
     59 	center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
     60 	if (!center_chan)
     61 		goto no_vht;
     62 
     63 	/* Use 80 MHz channel */
     64 	conf->vht_oper_chwidth = 1;
     65 	conf->vht_oper_centr_freq_seg0_idx = center_chan;
     66 	return;
     67 
     68 no_vht:
     69 	conf->vht_oper_centr_freq_seg0_idx =
     70 		channel + conf->secondary_channel * 2;
     71 #else /* CONFIG_P2P */
     72 	conf->vht_oper_centr_freq_seg0_idx =
     73 		conf->channel + conf->secondary_channel * 2;
     74 #endif /* CONFIG_P2P */
     75 }
     76 #endif /* CONFIG_IEEE80211N */
     77 
     78 
     79 void wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
     80 			       struct wpa_ssid *ssid,
     81 			       struct hostapd_config *conf)
     82 {
     83 	/* TODO: enable HT40 if driver supports it;
     84 	 * drop to 11b if driver does not support 11g */
     85 
     86 #ifdef CONFIG_IEEE80211N
     87 	/*
     88 	 * Enable HT20 if the driver supports it, by setting conf->ieee80211n
     89 	 * and a mask of allowed capabilities within conf->ht_capab.
     90 	 * Using default config settings for: conf->ht_op_mode_fixed,
     91 	 * conf->secondary_channel, conf->require_ht
     92 	 */
     93 	if (wpa_s->hw.modes) {
     94 		struct hostapd_hw_modes *mode = NULL;
     95 		int i, no_ht = 0;
     96 		for (i = 0; i < wpa_s->hw.num_modes; i++) {
     97 			if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
     98 				mode = &wpa_s->hw.modes[i];
     99 				break;
    100 			}
    101 		}
    102 
    103 #ifdef CONFIG_HT_OVERRIDES
    104 		if (ssid->disable_ht) {
    105 			conf->ieee80211n = 0;
    106 			conf->ht_capab = 0;
    107 			no_ht = 1;
    108 		}
    109 #endif /* CONFIG_HT_OVERRIDES */
    110 
    111 		if (!no_ht && mode && mode->ht_capab) {
    112 			conf->ieee80211n = 1;
    113 #ifdef CONFIG_P2P
    114 			if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
    115 			    (mode->ht_capab &
    116 			     HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
    117 			    ssid->ht40)
    118 				conf->secondary_channel =
    119 					wpas_p2p_get_ht40_mode(wpa_s, mode,
    120 							       conf->channel);
    121 			if (conf->secondary_channel)
    122 				conf->ht_capab |=
    123 					HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
    124 #endif /* CONFIG_P2P */
    125 
    126 			/*
    127 			 * white-list capabilities that won't cause issues
    128 			 * to connecting stations, while leaving the current
    129 			 * capabilities intact (currently disabled SMPS).
    130 			 */
    131 			conf->ht_capab |= mode->ht_capab &
    132 				(HT_CAP_INFO_GREEN_FIELD |
    133 				 HT_CAP_INFO_SHORT_GI20MHZ |
    134 				 HT_CAP_INFO_SHORT_GI40MHZ |
    135 				 HT_CAP_INFO_RX_STBC_MASK |
    136 				 HT_CAP_INFO_TX_STBC |
    137 				 HT_CAP_INFO_MAX_AMSDU_SIZE);
    138 
    139 			if (mode->vht_capab && ssid->vht) {
    140 				conf->ieee80211ac = 1;
    141 				wpas_conf_ap_vht(wpa_s, conf, mode);
    142 			}
    143 		}
    144 	}
    145 #endif /* CONFIG_IEEE80211N */
    146 }
    147 
    148 
    149 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
    150 				  struct wpa_ssid *ssid,
    151 				  struct hostapd_config *conf)
    152 {
    153 	struct hostapd_bss_config *bss = conf->bss[0];
    154 
    155 	conf->driver = wpa_s->driver;
    156 
    157 	os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
    158 
    159 	conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
    160 					       &conf->channel);
    161 	if (conf->hw_mode == NUM_HOSTAPD_MODES) {
    162 		wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
    163 			   ssid->frequency);
    164 		return -1;
    165 	}
    166 
    167 	wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf);
    168 
    169 	if (ieee80211_is_dfs(ssid->frequency) && wpa_s->conf->country[0]) {
    170 		conf->ieee80211h = 1;
    171 		conf->ieee80211d = 1;
    172 		conf->country[0] = wpa_s->conf->country[0];
    173 		conf->country[1] = wpa_s->conf->country[1];
    174 	}
    175 
    176 #ifdef CONFIG_P2P
    177 	if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
    178 	    (ssid->mode == WPAS_MODE_P2P_GO ||
    179 	     ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
    180 		/* Remove 802.11b rates from supported and basic rate sets */
    181 		int *list = os_malloc(4 * sizeof(int));
    182 		if (list) {
    183 			list[0] = 60;
    184 			list[1] = 120;
    185 			list[2] = 240;
    186 			list[3] = -1;
    187 		}
    188 		conf->basic_rates = list;
    189 
    190 		list = os_malloc(9 * sizeof(int));
    191 		if (list) {
    192 			list[0] = 60;
    193 			list[1] = 90;
    194 			list[2] = 120;
    195 			list[3] = 180;
    196 			list[4] = 240;
    197 			list[5] = 360;
    198 			list[6] = 480;
    199 			list[7] = 540;
    200 			list[8] = -1;
    201 		}
    202 		conf->supported_rates = list;
    203 	}
    204 
    205 	bss->isolate = !wpa_s->conf->p2p_intra_bss;
    206 	bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
    207 
    208 	if (ssid->p2p_group) {
    209 		os_memcpy(bss->ip_addr_go, wpa_s->parent->conf->ip_addr_go, 4);
    210 		os_memcpy(bss->ip_addr_mask, wpa_s->parent->conf->ip_addr_mask,
    211 			  4);
    212 		os_memcpy(bss->ip_addr_start,
    213 			  wpa_s->parent->conf->ip_addr_start, 4);
    214 		os_memcpy(bss->ip_addr_end, wpa_s->parent->conf->ip_addr_end,
    215 			  4);
    216 	}
    217 #endif /* CONFIG_P2P */
    218 
    219 	if (ssid->ssid_len == 0) {
    220 		wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
    221 		return -1;
    222 	}
    223 	os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
    224 	bss->ssid.ssid_len = ssid->ssid_len;
    225 	bss->ssid.ssid_set = 1;
    226 
    227 	bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
    228 
    229 	if (ssid->auth_alg)
    230 		bss->auth_algs = ssid->auth_alg;
    231 
    232 	if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
    233 		bss->wpa = ssid->proto;
    234 	bss->wpa_key_mgmt = ssid->key_mgmt;
    235 	bss->wpa_pairwise = ssid->pairwise_cipher;
    236 	if (ssid->psk_set) {
    237 		bin_clear_free(bss->ssid.wpa_psk, sizeof(*bss->ssid.wpa_psk));
    238 		bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
    239 		if (bss->ssid.wpa_psk == NULL)
    240 			return -1;
    241 		os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
    242 		bss->ssid.wpa_psk->group = 1;
    243 	} else if (ssid->passphrase) {
    244 		bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
    245 	} else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
    246 		   ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
    247 		struct hostapd_wep_keys *wep = &bss->ssid.wep;
    248 		int i;
    249 		for (i = 0; i < NUM_WEP_KEYS; i++) {
    250 			if (ssid->wep_key_len[i] == 0)
    251 				continue;
    252 			wep->key[i] = os_malloc(ssid->wep_key_len[i]);
    253 			if (wep->key[i] == NULL)
    254 				return -1;
    255 			os_memcpy(wep->key[i], ssid->wep_key[i],
    256 				  ssid->wep_key_len[i]);
    257 			wep->len[i] = ssid->wep_key_len[i];
    258 		}
    259 		wep->idx = ssid->wep_tx_keyidx;
    260 		wep->keys_set = 1;
    261 	}
    262 
    263 	if (ssid->ap_max_inactivity)
    264 		bss->ap_max_inactivity = ssid->ap_max_inactivity;
    265 
    266 	if (ssid->dtim_period)
    267 		bss->dtim_period = ssid->dtim_period;
    268 	else if (wpa_s->conf->dtim_period)
    269 		bss->dtim_period = wpa_s->conf->dtim_period;
    270 
    271 	if (ssid->beacon_int)
    272 		conf->beacon_int = ssid->beacon_int;
    273 	else if (wpa_s->conf->beacon_int)
    274 		conf->beacon_int = wpa_s->conf->beacon_int;
    275 
    276 #ifdef CONFIG_P2P
    277 	if (wpa_s->conf->p2p_go_ctwindow > conf->beacon_int) {
    278 		wpa_printf(MSG_INFO,
    279 			   "CTWindow (%d) is bigger than beacon interval (%d) - avoid configuring it",
    280 			   wpa_s->conf->p2p_go_ctwindow, conf->beacon_int);
    281 		conf->p2p_go_ctwindow = 0;
    282 	} else {
    283 		conf->p2p_go_ctwindow = wpa_s->conf->p2p_go_ctwindow;
    284 	}
    285 #endif /* CONFIG_P2P */
    286 
    287 	if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
    288 		bss->rsn_pairwise = bss->wpa_pairwise;
    289 	bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
    290 						    bss->rsn_pairwise);
    291 
    292 	if (bss->wpa && bss->ieee802_1x)
    293 		bss->ssid.security_policy = SECURITY_WPA;
    294 	else if (bss->wpa)
    295 		bss->ssid.security_policy = SECURITY_WPA_PSK;
    296 	else if (bss->ieee802_1x) {
    297 		int cipher = WPA_CIPHER_NONE;
    298 		bss->ssid.security_policy = SECURITY_IEEE_802_1X;
    299 		bss->ssid.wep.default_len = bss->default_wep_key_len;
    300 		if (bss->default_wep_key_len)
    301 			cipher = bss->default_wep_key_len >= 13 ?
    302 				WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
    303 		bss->wpa_group = cipher;
    304 		bss->wpa_pairwise = cipher;
    305 		bss->rsn_pairwise = cipher;
    306 	} else if (bss->ssid.wep.keys_set) {
    307 		int cipher = WPA_CIPHER_WEP40;
    308 		if (bss->ssid.wep.len[0] >= 13)
    309 			cipher = WPA_CIPHER_WEP104;
    310 		bss->ssid.security_policy = SECURITY_STATIC_WEP;
    311 		bss->wpa_group = cipher;
    312 		bss->wpa_pairwise = cipher;
    313 		bss->rsn_pairwise = cipher;
    314 	} else {
    315 		bss->ssid.security_policy = SECURITY_PLAINTEXT;
    316 		bss->wpa_group = WPA_CIPHER_NONE;
    317 		bss->wpa_pairwise = WPA_CIPHER_NONE;
    318 		bss->rsn_pairwise = WPA_CIPHER_NONE;
    319 	}
    320 
    321 	if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
    322 	    (bss->wpa_group == WPA_CIPHER_CCMP ||
    323 	     bss->wpa_group == WPA_CIPHER_GCMP ||
    324 	     bss->wpa_group == WPA_CIPHER_CCMP_256 ||
    325 	     bss->wpa_group == WPA_CIPHER_GCMP_256)) {
    326 		/*
    327 		 * Strong ciphers do not need frequent rekeying, so increase
    328 		 * the default GTK rekeying period to 24 hours.
    329 		 */
    330 		bss->wpa_group_rekey = 86400;
    331 	}
    332 
    333 #ifdef CONFIG_IEEE80211W
    334 	if (ssid->ieee80211w != MGMT_FRAME_PROTECTION_DEFAULT)
    335 		bss->ieee80211w = ssid->ieee80211w;
    336 #endif /* CONFIG_IEEE80211W */
    337 
    338 #ifdef CONFIG_WPS
    339 	/*
    340 	 * Enable WPS by default for open and WPA/WPA2-Personal network, but
    341 	 * require user interaction to actually use it. Only the internal
    342 	 * Registrar is supported.
    343 	 */
    344 	if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
    345 	    bss->ssid.security_policy != SECURITY_PLAINTEXT)
    346 		goto no_wps;
    347 	if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
    348 	    (!(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) ||
    349 	     !(bss->wpa & 2)))
    350 		goto no_wps; /* WPS2 does not allow WPA/TKIP-only
    351 			      * configuration */
    352 	bss->eap_server = 1;
    353 
    354 	if (!ssid->ignore_broadcast_ssid)
    355 		bss->wps_state = 2;
    356 
    357 	bss->ap_setup_locked = 2;
    358 	if (wpa_s->conf->config_methods)
    359 		bss->config_methods = os_strdup(wpa_s->conf->config_methods);
    360 	os_memcpy(bss->device_type, wpa_s->conf->device_type,
    361 		  WPS_DEV_TYPE_LEN);
    362 	if (wpa_s->conf->device_name) {
    363 		bss->device_name = os_strdup(wpa_s->conf->device_name);
    364 		bss->friendly_name = os_strdup(wpa_s->conf->device_name);
    365 	}
    366 	if (wpa_s->conf->manufacturer)
    367 		bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
    368 	if (wpa_s->conf->model_name)
    369 		bss->model_name = os_strdup(wpa_s->conf->model_name);
    370 	if (wpa_s->conf->model_number)
    371 		bss->model_number = os_strdup(wpa_s->conf->model_number);
    372 	if (wpa_s->conf->serial_number)
    373 		bss->serial_number = os_strdup(wpa_s->conf->serial_number);
    374 	if (is_nil_uuid(wpa_s->conf->uuid))
    375 		os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
    376 	else
    377 		os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
    378 	os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
    379 	bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
    380 no_wps:
    381 #endif /* CONFIG_WPS */
    382 
    383 	if (wpa_s->max_stations &&
    384 	    wpa_s->max_stations < wpa_s->conf->max_num_sta)
    385 		bss->max_num_sta = wpa_s->max_stations;
    386 	else
    387 		bss->max_num_sta = wpa_s->conf->max_num_sta;
    388 
    389 	bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
    390 
    391 	if (wpa_s->conf->ap_vendor_elements) {
    392 		bss->vendor_elements =
    393 			wpabuf_dup(wpa_s->conf->ap_vendor_elements);
    394 	}
    395 
    396 	return 0;
    397 }
    398 
    399 
    400 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
    401 {
    402 #ifdef CONFIG_P2P
    403 	struct wpa_supplicant *wpa_s = ctx;
    404 	const struct ieee80211_mgmt *mgmt;
    405 
    406 	mgmt = (const struct ieee80211_mgmt *) buf;
    407 	if (len < IEEE80211_HDRLEN + 1)
    408 		return;
    409 	if (mgmt->u.action.category != WLAN_ACTION_PUBLIC)
    410 		return;
    411 	wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
    412 			   mgmt->u.action.category,
    413 			   buf + IEEE80211_HDRLEN + 1,
    414 			   len - IEEE80211_HDRLEN - 1, freq);
    415 #endif /* CONFIG_P2P */
    416 }
    417 
    418 
    419 static void ap_wps_event_cb(void *ctx, enum wps_event event,
    420 			    union wps_event_data *data)
    421 {
    422 #ifdef CONFIG_P2P
    423 	struct wpa_supplicant *wpa_s = ctx;
    424 
    425 	if (event == WPS_EV_FAIL) {
    426 		struct wps_event_fail *fail = &data->fail;
    427 
    428 		if (wpa_s->parent && wpa_s->parent != wpa_s &&
    429 		    wpa_s == wpa_s->global->p2p_group_formation) {
    430 			/*
    431 			 * src/ap/wps_hostapd.c has already sent this on the
    432 			 * main interface, so only send on the parent interface
    433 			 * here if needed.
    434 			 */
    435 			wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
    436 				"msg=%d config_error=%d",
    437 				fail->msg, fail->config_error);
    438 		}
    439 		wpas_p2p_wps_failed(wpa_s, fail);
    440 	}
    441 #endif /* CONFIG_P2P */
    442 }
    443 
    444 
    445 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
    446 				 int authorized, const u8 *p2p_dev_addr)
    447 {
    448 	wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
    449 }
    450 
    451 
    452 #ifdef CONFIG_P2P
    453 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
    454 			  const u8 *psk, size_t psk_len)
    455 {
    456 
    457 	struct wpa_supplicant *wpa_s = ctx;
    458 	if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
    459 		return;
    460 	wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
    461 }
    462 #endif /* CONFIG_P2P */
    463 
    464 
    465 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
    466 {
    467 #ifdef CONFIG_P2P
    468 	struct wpa_supplicant *wpa_s = ctx;
    469 	const struct ieee80211_mgmt *mgmt;
    470 
    471 	mgmt = (const struct ieee80211_mgmt *) buf;
    472 	if (len < IEEE80211_HDRLEN + 1)
    473 		return -1;
    474 	wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
    475 			   mgmt->u.action.category,
    476 			   buf + IEEE80211_HDRLEN + 1,
    477 			   len - IEEE80211_HDRLEN - 1, freq);
    478 #endif /* CONFIG_P2P */
    479 	return 0;
    480 }
    481 
    482 
    483 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
    484 			   const u8 *bssid, const u8 *ie, size_t ie_len,
    485 			   int ssi_signal)
    486 {
    487 	struct wpa_supplicant *wpa_s = ctx;
    488 	unsigned int freq = 0;
    489 
    490 	if (wpa_s->ap_iface)
    491 		freq = wpa_s->ap_iface->freq;
    492 
    493 	return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
    494 				     freq, ssi_signal);
    495 }
    496 
    497 
    498 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
    499 				  const u8 *uuid_e)
    500 {
    501 	struct wpa_supplicant *wpa_s = ctx;
    502 	wpas_p2p_wps_success(wpa_s, mac_addr, 1);
    503 }
    504 
    505 
    506 static void wpas_ap_configured_cb(void *ctx)
    507 {
    508 	struct wpa_supplicant *wpa_s = ctx;
    509 
    510 	wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
    511 
    512 	if (wpa_s->ap_configured_cb)
    513 		wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
    514 					wpa_s->ap_configured_cb_data);
    515 }
    516 
    517 
    518 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
    519 			     struct wpa_ssid *ssid)
    520 {
    521 	struct wpa_driver_associate_params params;
    522 	struct hostapd_iface *hapd_iface;
    523 	struct hostapd_config *conf;
    524 	size_t i;
    525 
    526 	if (ssid->ssid == NULL || ssid->ssid_len == 0) {
    527 		wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
    528 		return -1;
    529 	}
    530 
    531 	wpa_supplicant_ap_deinit(wpa_s);
    532 
    533 	wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
    534 		   wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
    535 
    536 	os_memset(&params, 0, sizeof(params));
    537 	params.ssid = ssid->ssid;
    538 	params.ssid_len = ssid->ssid_len;
    539 	switch (ssid->mode) {
    540 	case WPAS_MODE_AP:
    541 	case WPAS_MODE_P2P_GO:
    542 	case WPAS_MODE_P2P_GROUP_FORMATION:
    543 		params.mode = IEEE80211_MODE_AP;
    544 		break;
    545 	default:
    546 		return -1;
    547 	}
    548 	if (ssid->frequency == 0)
    549 		ssid->frequency = 2462; /* default channel 11 */
    550 	params.freq.freq = ssid->frequency;
    551 
    552 	params.wpa_proto = ssid->proto;
    553 	if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
    554 		wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
    555 	else
    556 		wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
    557 	params.key_mgmt_suite = wpa_s->key_mgmt;
    558 
    559 	wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
    560 							  1);
    561 	if (wpa_s->pairwise_cipher < 0) {
    562 		wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
    563 			   "cipher.");
    564 		return -1;
    565 	}
    566 	params.pairwise_suite = wpa_s->pairwise_cipher;
    567 	params.group_suite = params.pairwise_suite;
    568 
    569 #ifdef CONFIG_P2P
    570 	if (ssid->mode == WPAS_MODE_P2P_GO ||
    571 	    ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
    572 		params.p2p = 1;
    573 #endif /* CONFIG_P2P */
    574 
    575 	if (wpa_s->parent->set_ap_uapsd)
    576 		params.uapsd = wpa_s->parent->ap_uapsd;
    577 	else if (params.p2p && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
    578 		params.uapsd = 1; /* mandatory for P2P GO */
    579 	else
    580 		params.uapsd = -1;
    581 
    582 	if (ieee80211_is_dfs(params.freq.freq))
    583 		params.freq.freq = 0; /* set channel after CAC */
    584 
    585 	if (wpa_drv_associate(wpa_s, &params) < 0) {
    586 		wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
    587 		return -1;
    588 	}
    589 
    590 	wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
    591 	if (hapd_iface == NULL)
    592 		return -1;
    593 	hapd_iface->owner = wpa_s;
    594 	hapd_iface->drv_flags = wpa_s->drv_flags;
    595 	hapd_iface->smps_modes = wpa_s->drv_smps_modes;
    596 	hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
    597 	hapd_iface->extended_capa = wpa_s->extended_capa;
    598 	hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
    599 	hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
    600 
    601 	wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
    602 	if (conf == NULL) {
    603 		wpa_supplicant_ap_deinit(wpa_s);
    604 		return -1;
    605 	}
    606 
    607 	os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
    608 		  wpa_s->conf->wmm_ac_params,
    609 		  sizeof(wpa_s->conf->wmm_ac_params));
    610 
    611 	if (params.uapsd > 0) {
    612 		conf->bss[0]->wmm_enabled = 1;
    613 		conf->bss[0]->wmm_uapsd = 1;
    614 	}
    615 
    616 	if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
    617 		wpa_printf(MSG_ERROR, "Failed to create AP configuration");
    618 		wpa_supplicant_ap_deinit(wpa_s);
    619 		return -1;
    620 	}
    621 
    622 #ifdef CONFIG_P2P
    623 	if (ssid->mode == WPAS_MODE_P2P_GO)
    624 		conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
    625 	else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
    626 		conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
    627 			P2P_GROUP_FORMATION;
    628 #endif /* CONFIG_P2P */
    629 
    630 	hapd_iface->num_bss = conf->num_bss;
    631 	hapd_iface->bss = os_calloc(conf->num_bss,
    632 				    sizeof(struct hostapd_data *));
    633 	if (hapd_iface->bss == NULL) {
    634 		wpa_supplicant_ap_deinit(wpa_s);
    635 		return -1;
    636 	}
    637 
    638 	for (i = 0; i < conf->num_bss; i++) {
    639 		hapd_iface->bss[i] =
    640 			hostapd_alloc_bss_data(hapd_iface, conf,
    641 					       conf->bss[i]);
    642 		if (hapd_iface->bss[i] == NULL) {
    643 			wpa_supplicant_ap_deinit(wpa_s);
    644 			return -1;
    645 		}
    646 
    647 		hapd_iface->bss[i]->msg_ctx = wpa_s;
    648 		hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
    649 		hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
    650 		hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
    651 		hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
    652 		hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
    653 		hostapd_register_probereq_cb(hapd_iface->bss[i],
    654 					     ap_probe_req_rx, wpa_s);
    655 		hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
    656 		hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
    657 		hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
    658 		hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
    659 		hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
    660 		hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
    661 #ifdef CONFIG_P2P
    662 		hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
    663 		hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
    664 		hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
    665 		hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
    666 								    ssid);
    667 #endif /* CONFIG_P2P */
    668 		hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
    669 		hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
    670 #ifdef CONFIG_TESTING_OPTIONS
    671 		hapd_iface->bss[i]->ext_eapol_frame_io =
    672 			wpa_s->ext_eapol_frame_io;
    673 #endif /* CONFIG_TESTING_OPTIONS */
    674 	}
    675 
    676 	os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
    677 	hapd_iface->bss[0]->driver = wpa_s->driver;
    678 	hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
    679 
    680 	wpa_s->current_ssid = ssid;
    681 	eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
    682 	os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
    683 	wpa_s->assoc_freq = ssid->frequency;
    684 
    685 	if (hostapd_setup_interface(wpa_s->ap_iface)) {
    686 		wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
    687 		wpa_supplicant_ap_deinit(wpa_s);
    688 		return -1;
    689 	}
    690 
    691 	return 0;
    692 }
    693 
    694 
    695 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
    696 {
    697 #ifdef CONFIG_WPS
    698 	eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
    699 #endif /* CONFIG_WPS */
    700 
    701 	if (wpa_s->ap_iface == NULL)
    702 		return;
    703 
    704 	wpa_s->current_ssid = NULL;
    705 	eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
    706 	wpa_s->assoc_freq = 0;
    707 	wpas_p2p_ap_deinit(wpa_s);
    708 	wpa_s->ap_iface->driver_ap_teardown =
    709 		!!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
    710 
    711 	hostapd_interface_deinit(wpa_s->ap_iface);
    712 	hostapd_interface_free(wpa_s->ap_iface);
    713 	wpa_s->ap_iface = NULL;
    714 	wpa_drv_deinit_ap(wpa_s);
    715 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
    716 		" reason=%d locally_generated=1",
    717 		MAC2STR(wpa_s->own_addr), WLAN_REASON_DEAUTH_LEAVING);
    718 }
    719 
    720 
    721 void ap_tx_status(void *ctx, const u8 *addr,
    722 		  const u8 *buf, size_t len, int ack)
    723 {
    724 #ifdef NEED_AP_MLME
    725 	struct wpa_supplicant *wpa_s = ctx;
    726 	hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
    727 #endif /* NEED_AP_MLME */
    728 }
    729 
    730 
    731 void ap_eapol_tx_status(void *ctx, const u8 *dst,
    732 			const u8 *data, size_t len, int ack)
    733 {
    734 #ifdef NEED_AP_MLME
    735 	struct wpa_supplicant *wpa_s = ctx;
    736 	if (!wpa_s->ap_iface)
    737 		return;
    738 	hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
    739 #endif /* NEED_AP_MLME */
    740 }
    741 
    742 
    743 void ap_client_poll_ok(void *ctx, const u8 *addr)
    744 {
    745 #ifdef NEED_AP_MLME
    746 	struct wpa_supplicant *wpa_s = ctx;
    747 	if (wpa_s->ap_iface)
    748 		hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
    749 #endif /* NEED_AP_MLME */
    750 }
    751 
    752 
    753 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
    754 {
    755 #ifdef NEED_AP_MLME
    756 	struct wpa_supplicant *wpa_s = ctx;
    757 	ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
    758 #endif /* NEED_AP_MLME */
    759 }
    760 
    761 
    762 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
    763 {
    764 #ifdef NEED_AP_MLME
    765 	struct wpa_supplicant *wpa_s = ctx;
    766 	struct hostapd_frame_info fi;
    767 	os_memset(&fi, 0, sizeof(fi));
    768 	fi.datarate = rx_mgmt->datarate;
    769 	fi.ssi_signal = rx_mgmt->ssi_signal;
    770 	ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
    771 			rx_mgmt->frame_len, &fi);
    772 #endif /* NEED_AP_MLME */
    773 }
    774 
    775 
    776 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
    777 {
    778 #ifdef NEED_AP_MLME
    779 	struct wpa_supplicant *wpa_s = ctx;
    780 	ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
    781 #endif /* NEED_AP_MLME */
    782 }
    783 
    784 
    785 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
    786 				const u8 *src_addr, const u8 *buf, size_t len)
    787 {
    788 	ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
    789 }
    790 
    791 
    792 #ifdef CONFIG_WPS
    793 
    794 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
    795 			      const u8 *p2p_dev_addr)
    796 {
    797 	if (!wpa_s->ap_iface)
    798 		return -1;
    799 	return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
    800 					 p2p_dev_addr);
    801 }
    802 
    803 
    804 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
    805 {
    806 	struct wps_registrar *reg;
    807 	int reg_sel = 0, wps_sta = 0;
    808 
    809 	if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
    810 		return -1;
    811 
    812 	reg = wpa_s->ap_iface->bss[0]->wps->registrar;
    813 	reg_sel = wps_registrar_wps_cancel(reg);
    814 	wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
    815 				  ap_sta_wps_cancel, NULL);
    816 
    817 	if (!reg_sel && !wps_sta) {
    818 		wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
    819 			   "time");
    820 		return -1;
    821 	}
    822 
    823 	/*
    824 	 * There are 2 cases to return wps cancel as success:
    825 	 * 1. When wps cancel was initiated but no connection has been
    826 	 *    established with client yet.
    827 	 * 2. Client is in the middle of exchanging WPS messages.
    828 	 */
    829 
    830 	return 0;
    831 }
    832 
    833 
    834 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
    835 			      const char *pin, char *buf, size_t buflen,
    836 			      int timeout)
    837 {
    838 	int ret, ret_len = 0;
    839 
    840 	if (!wpa_s->ap_iface)
    841 		return -1;
    842 
    843 	if (pin == NULL) {
    844 		unsigned int rpin = wps_generate_pin();
    845 		ret_len = os_snprintf(buf, buflen, "%08d", rpin);
    846 		if (os_snprintf_error(buflen, ret_len))
    847 			return -1;
    848 		pin = buf;
    849 	} else if (buf) {
    850 		ret_len = os_snprintf(buf, buflen, "%s", pin);
    851 		if (os_snprintf_error(buflen, ret_len))
    852 			return -1;
    853 	}
    854 
    855 	ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
    856 				  timeout);
    857 	if (ret)
    858 		return -1;
    859 	return ret_len;
    860 }
    861 
    862 
    863 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
    864 {
    865 	struct wpa_supplicant *wpa_s = eloop_data;
    866 	wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
    867 	wpas_wps_ap_pin_disable(wpa_s);
    868 }
    869 
    870 
    871 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
    872 {
    873 	struct hostapd_data *hapd;
    874 
    875 	if (wpa_s->ap_iface == NULL)
    876 		return;
    877 	hapd = wpa_s->ap_iface->bss[0];
    878 	wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
    879 	hapd->ap_pin_failures = 0;
    880 	eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
    881 	if (timeout > 0)
    882 		eloop_register_timeout(timeout, 0,
    883 				       wpas_wps_ap_pin_timeout, wpa_s, NULL);
    884 }
    885 
    886 
    887 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
    888 {
    889 	struct hostapd_data *hapd;
    890 
    891 	if (wpa_s->ap_iface == NULL)
    892 		return;
    893 	wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
    894 	hapd = wpa_s->ap_iface->bss[0];
    895 	os_free(hapd->conf->ap_pin);
    896 	hapd->conf->ap_pin = NULL;
    897 	eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
    898 }
    899 
    900 
    901 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
    902 {
    903 	struct hostapd_data *hapd;
    904 	unsigned int pin;
    905 	char pin_txt[9];
    906 
    907 	if (wpa_s->ap_iface == NULL)
    908 		return NULL;
    909 	hapd = wpa_s->ap_iface->bss[0];
    910 	pin = wps_generate_pin();
    911 	os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
    912 	os_free(hapd->conf->ap_pin);
    913 	hapd->conf->ap_pin = os_strdup(pin_txt);
    914 	if (hapd->conf->ap_pin == NULL)
    915 		return NULL;
    916 	wpas_wps_ap_pin_enable(wpa_s, timeout);
    917 
    918 	return hapd->conf->ap_pin;
    919 }
    920 
    921 
    922 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
    923 {
    924 	struct hostapd_data *hapd;
    925 	if (wpa_s->ap_iface == NULL)
    926 		return NULL;
    927 	hapd = wpa_s->ap_iface->bss[0];
    928 	return hapd->conf->ap_pin;
    929 }
    930 
    931 
    932 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
    933 			int timeout)
    934 {
    935 	struct hostapd_data *hapd;
    936 	char pin_txt[9];
    937 	int ret;
    938 
    939 	if (wpa_s->ap_iface == NULL)
    940 		return -1;
    941 	hapd = wpa_s->ap_iface->bss[0];
    942 	ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
    943 	if (os_snprintf_error(sizeof(pin_txt), ret))
    944 		return -1;
    945 	os_free(hapd->conf->ap_pin);
    946 	hapd->conf->ap_pin = os_strdup(pin_txt);
    947 	if (hapd->conf->ap_pin == NULL)
    948 		return -1;
    949 	wpas_wps_ap_pin_enable(wpa_s, timeout);
    950 
    951 	return 0;
    952 }
    953 
    954 
    955 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
    956 {
    957 	struct hostapd_data *hapd;
    958 
    959 	if (wpa_s->ap_iface == NULL)
    960 		return;
    961 	hapd = wpa_s->ap_iface->bss[0];
    962 
    963 	/*
    964 	 * Registrar failed to prove its knowledge of the AP PIN. Disable AP
    965 	 * PIN if this happens multiple times to slow down brute force attacks.
    966 	 */
    967 	hapd->ap_pin_failures++;
    968 	wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
    969 		   hapd->ap_pin_failures);
    970 	if (hapd->ap_pin_failures < 3)
    971 		return;
    972 
    973 	wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
    974 	hapd->ap_pin_failures = 0;
    975 	os_free(hapd->conf->ap_pin);
    976 	hapd->conf->ap_pin = NULL;
    977 }
    978 
    979 
    980 #ifdef CONFIG_WPS_NFC
    981 
    982 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
    983 					     int ndef)
    984 {
    985 	struct hostapd_data *hapd;
    986 
    987 	if (wpa_s->ap_iface == NULL)
    988 		return NULL;
    989 	hapd = wpa_s->ap_iface->bss[0];
    990 	return hostapd_wps_nfc_config_token(hapd, ndef);
    991 }
    992 
    993 
    994 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
    995 					     int ndef)
    996 {
    997 	struct hostapd_data *hapd;
    998 
    999 	if (wpa_s->ap_iface == NULL)
   1000 		return NULL;
   1001 	hapd = wpa_s->ap_iface->bss[0];
   1002 	return hostapd_wps_nfc_hs_cr(hapd, ndef);
   1003 }
   1004 
   1005 
   1006 int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
   1007 				    const struct wpabuf *req,
   1008 				    const struct wpabuf *sel)
   1009 {
   1010 	struct hostapd_data *hapd;
   1011 
   1012 	if (wpa_s->ap_iface == NULL)
   1013 		return -1;
   1014 	hapd = wpa_s->ap_iface->bss[0];
   1015 	return hostapd_wps_nfc_report_handover(hapd, req, sel);
   1016 }
   1017 
   1018 #endif /* CONFIG_WPS_NFC */
   1019 
   1020 #endif /* CONFIG_WPS */
   1021 
   1022 
   1023 #ifdef CONFIG_CTRL_IFACE
   1024 
   1025 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
   1026 			    char *buf, size_t buflen)
   1027 {
   1028 	struct hostapd_data *hapd;
   1029 
   1030 	if (wpa_s->ap_iface)
   1031 		hapd = wpa_s->ap_iface->bss[0];
   1032 	else if (wpa_s->ifmsh)
   1033 		hapd = wpa_s->ifmsh->bss[0];
   1034 	else
   1035 		return -1;
   1036 	return hostapd_ctrl_iface_sta_first(hapd, buf, buflen);
   1037 }
   1038 
   1039 
   1040 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
   1041 		      char *buf, size_t buflen)
   1042 {
   1043 	struct hostapd_data *hapd;
   1044 
   1045 	if (wpa_s->ap_iface)
   1046 		hapd = wpa_s->ap_iface->bss[0];
   1047 	else if (wpa_s->ifmsh)
   1048 		hapd = wpa_s->ifmsh->bss[0];
   1049 	else
   1050 		return -1;
   1051 	return hostapd_ctrl_iface_sta(hapd, txtaddr, buf, buflen);
   1052 }
   1053 
   1054 
   1055 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
   1056 			   char *buf, size_t buflen)
   1057 {
   1058 	struct hostapd_data *hapd;
   1059 
   1060 	if (wpa_s->ap_iface)
   1061 		hapd = wpa_s->ap_iface->bss[0];
   1062 	else if (wpa_s->ifmsh)
   1063 		hapd = wpa_s->ifmsh->bss[0];
   1064 	else
   1065 		return -1;
   1066 	return hostapd_ctrl_iface_sta_next(hapd, txtaddr, buf, buflen);
   1067 }
   1068 
   1069 
   1070 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
   1071 				   const char *txtaddr)
   1072 {
   1073 	if (wpa_s->ap_iface == NULL)
   1074 		return -1;
   1075 	return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
   1076 					       txtaddr);
   1077 }
   1078 
   1079 
   1080 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
   1081 				     const char *txtaddr)
   1082 {
   1083 	if (wpa_s->ap_iface == NULL)
   1084 		return -1;
   1085 	return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
   1086 						 txtaddr);
   1087 }
   1088 
   1089 
   1090 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
   1091 				 size_t buflen, int verbose)
   1092 {
   1093 	char *pos = buf, *end = buf + buflen;
   1094 	int ret;
   1095 	struct hostapd_bss_config *conf;
   1096 
   1097 	if (wpa_s->ap_iface == NULL)
   1098 		return -1;
   1099 
   1100 	conf = wpa_s->ap_iface->bss[0]->conf;
   1101 	if (conf->wpa == 0)
   1102 		return 0;
   1103 
   1104 	ret = os_snprintf(pos, end - pos,
   1105 			  "pairwise_cipher=%s\n"
   1106 			  "group_cipher=%s\n"
   1107 			  "key_mgmt=%s\n",
   1108 			  wpa_cipher_txt(conf->rsn_pairwise),
   1109 			  wpa_cipher_txt(conf->wpa_group),
   1110 			  wpa_key_mgmt_txt(conf->wpa_key_mgmt,
   1111 					   conf->wpa));
   1112 	if (os_snprintf_error(end - pos, ret))
   1113 		return pos - buf;
   1114 	pos += ret;
   1115 	return pos - buf;
   1116 }
   1117 
   1118 #endif /* CONFIG_CTRL_IFACE */
   1119 
   1120 
   1121 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
   1122 {
   1123 	struct hostapd_iface *iface = wpa_s->ap_iface;
   1124 	struct wpa_ssid *ssid = wpa_s->current_ssid;
   1125 	struct hostapd_data *hapd;
   1126 
   1127 	if (ssid == NULL || wpa_s->ap_iface == NULL ||
   1128 	    ssid->mode == WPAS_MODE_INFRA ||
   1129 	    ssid->mode == WPAS_MODE_IBSS)
   1130 		return -1;
   1131 
   1132 #ifdef CONFIG_P2P
   1133 	if (ssid->mode == WPAS_MODE_P2P_GO)
   1134 		iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
   1135 	else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
   1136 		iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
   1137 			P2P_GROUP_FORMATION;
   1138 #endif /* CONFIG_P2P */
   1139 
   1140 	hapd = iface->bss[0];
   1141 	if (hapd->drv_priv == NULL)
   1142 		return -1;
   1143 	ieee802_11_set_beacons(iface);
   1144 	hostapd_set_ap_wps_ie(hapd);
   1145 
   1146 	return 0;
   1147 }
   1148 
   1149 
   1150 int ap_switch_channel(struct wpa_supplicant *wpa_s,
   1151 		      struct csa_settings *settings)
   1152 {
   1153 #ifdef NEED_AP_MLME
   1154 	if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
   1155 		return -1;
   1156 
   1157 	return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings);
   1158 #else /* NEED_AP_MLME */
   1159 	return -1;
   1160 #endif /* NEED_AP_MLME */
   1161 }
   1162 
   1163 
   1164 #ifdef CONFIG_CTRL_IFACE
   1165 int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos)
   1166 {
   1167 	struct csa_settings settings;
   1168 	int ret = hostapd_parse_csa_settings(pos, &settings);
   1169 
   1170 	if (ret)
   1171 		return ret;
   1172 
   1173 	return ap_switch_channel(wpa_s, &settings);
   1174 }
   1175 #endif /* CONFIG_CTRL_IFACE */
   1176 
   1177 
   1178 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
   1179 		       int offset, int width, int cf1, int cf2)
   1180 {
   1181 	if (!wpa_s->ap_iface)
   1182 		return;
   1183 
   1184 	wpa_s->assoc_freq = freq;
   1185 	hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset, width, cf1, cf1);
   1186 }
   1187 
   1188 
   1189 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
   1190 				      const u8 *addr)
   1191 {
   1192 	struct hostapd_data *hapd;
   1193 	struct hostapd_bss_config *conf;
   1194 
   1195 	if (!wpa_s->ap_iface)
   1196 		return -1;
   1197 
   1198 	if (addr)
   1199 		wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
   1200 			   MAC2STR(addr));
   1201 	else
   1202 		wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
   1203 
   1204 	hapd = wpa_s->ap_iface->bss[0];
   1205 	conf = hapd->conf;
   1206 
   1207 	os_free(conf->accept_mac);
   1208 	conf->accept_mac = NULL;
   1209 	conf->num_accept_mac = 0;
   1210 	os_free(conf->deny_mac);
   1211 	conf->deny_mac = NULL;
   1212 	conf->num_deny_mac = 0;
   1213 
   1214 	if (addr == NULL) {
   1215 		conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
   1216 		return 0;
   1217 	}
   1218 
   1219 	conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
   1220 	conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
   1221 	if (conf->accept_mac == NULL)
   1222 		return -1;
   1223 	os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
   1224 	conf->num_accept_mac = 1;
   1225 
   1226 	return 0;
   1227 }
   1228 
   1229 
   1230 #ifdef CONFIG_WPS_NFC
   1231 int wpas_ap_wps_add_nfc_pw(struct wpa_supplicant *wpa_s, u16 pw_id,
   1232 			   const struct wpabuf *pw, const u8 *pubkey_hash)
   1233 {
   1234 	struct hostapd_data *hapd;
   1235 	struct wps_context *wps;
   1236 
   1237 	if (!wpa_s->ap_iface)
   1238 		return -1;
   1239 	hapd = wpa_s->ap_iface->bss[0];
   1240 	wps = hapd->wps;
   1241 
   1242 	if (wpa_s->parent->conf->wps_nfc_dh_pubkey == NULL ||
   1243 	    wpa_s->parent->conf->wps_nfc_dh_privkey == NULL) {
   1244 		wpa_printf(MSG_DEBUG, "P2P: No NFC DH key known");
   1245 		return -1;
   1246 	}
   1247 
   1248 	dh5_free(wps->dh_ctx);
   1249 	wpabuf_free(wps->dh_pubkey);
   1250 	wpabuf_free(wps->dh_privkey);
   1251 	wps->dh_privkey = wpabuf_dup(
   1252 		wpa_s->parent->conf->wps_nfc_dh_privkey);
   1253 	wps->dh_pubkey = wpabuf_dup(
   1254 		wpa_s->parent->conf->wps_nfc_dh_pubkey);
   1255 	if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
   1256 		wps->dh_ctx = NULL;
   1257 		wpabuf_free(wps->dh_pubkey);
   1258 		wps->dh_pubkey = NULL;
   1259 		wpabuf_free(wps->dh_privkey);
   1260 		wps->dh_privkey = NULL;
   1261 		return -1;
   1262 	}
   1263 	wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
   1264 	if (wps->dh_ctx == NULL)
   1265 		return -1;
   1266 
   1267 	return wps_registrar_add_nfc_pw_token(hapd->wps->registrar, pubkey_hash,
   1268 					      pw_id,
   1269 					      pw ? wpabuf_head(pw) : NULL,
   1270 					      pw ? wpabuf_len(pw) : 0, 1);
   1271 }
   1272 #endif /* CONFIG_WPS_NFC */
   1273 
   1274 
   1275 #ifdef CONFIG_CTRL_IFACE
   1276 int wpas_ap_stop_ap(struct wpa_supplicant *wpa_s)
   1277 {
   1278 	struct hostapd_data *hapd;
   1279 
   1280 	if (!wpa_s->ap_iface)
   1281 		return -1;
   1282 	hapd = wpa_s->ap_iface->bss[0];
   1283 	return hostapd_ctrl_iface_stop_ap(hapd);
   1284 }
   1285 #endif /* CONFIG_CTRL_IFACE */
   1286 
   1287 
   1288 #ifdef NEED_AP_MLME
   1289 void wpas_event_dfs_radar_detected(struct wpa_supplicant *wpa_s,
   1290 				   struct dfs_event *radar)
   1291 {
   1292 	if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
   1293 		return;
   1294 	wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
   1295 	hostapd_dfs_radar_detected(wpa_s->ap_iface, radar->freq,
   1296 				   radar->ht_enabled, radar->chan_offset,
   1297 				   radar->chan_width,
   1298 				   radar->cf1, radar->cf2);
   1299 }
   1300 
   1301 
   1302 void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
   1303 				struct dfs_event *radar)
   1304 {
   1305 	if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
   1306 		return;
   1307 	wpa_printf(MSG_DEBUG, "DFS CAC started on %d MHz", radar->freq);
   1308 	hostapd_dfs_start_cac(wpa_s->ap_iface, radar->freq,
   1309 			      radar->ht_enabled, radar->chan_offset,
   1310 			      radar->chan_width, radar->cf1, radar->cf2);
   1311 }
   1312 
   1313 
   1314 void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
   1315 				 struct dfs_event *radar)
   1316 {
   1317 	if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
   1318 		return;
   1319 	wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
   1320 	hostapd_dfs_complete_cac(wpa_s->ap_iface, 1, radar->freq,
   1321 				 radar->ht_enabled, radar->chan_offset,
   1322 				 radar->chan_width, radar->cf1, radar->cf2);
   1323 }
   1324 
   1325 
   1326 void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
   1327 				struct dfs_event *radar)
   1328 {
   1329 	if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
   1330 		return;
   1331 	wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
   1332 	hostapd_dfs_complete_cac(wpa_s->ap_iface, 0, radar->freq,
   1333 				 radar->ht_enabled, radar->chan_offset,
   1334 				 radar->chan_width, radar->cf1, radar->cf2);
   1335 }
   1336 
   1337 
   1338 void wpas_event_dfs_cac_nop_finished(struct wpa_supplicant *wpa_s,
   1339 				     struct dfs_event *radar)
   1340 {
   1341 	if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
   1342 		return;
   1343 	wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
   1344 	hostapd_dfs_nop_finished(wpa_s->ap_iface, radar->freq,
   1345 				 radar->ht_enabled, radar->chan_offset,
   1346 				 radar->chan_width, radar->cf1, radar->cf2);
   1347 }
   1348 #endif /* NEED_AP_MLME */
   1349