1 /*
2  * WPA Supplicant - Basic AP mode support routines
3  * Copyright (c) 2003-2009, Jouni Malinen <j@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
wpas_conf_ap_vht(struct wpa_supplicant * wpa_s,struct hostapd_config * conf,struct hostapd_hw_modes * mode)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 
wpa_supplicant_conf_ap_ht(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct hostapd_config * conf)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 
wpa_supplicant_conf_ap(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct hostapd_config * conf)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 
ap_public_action_rx(void * ctx,const u8 * buf,size_t len,int freq)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 
ap_wps_event_cb(void * ctx,enum wps_event event,union wps_event_data * data)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 
ap_sta_authorized_cb(void * ctx,const u8 * mac_addr,int authorized,const u8 * p2p_dev_addr)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
ap_new_psk_cb(void * ctx,const u8 * mac_addr,const u8 * p2p_dev_addr,const u8 * psk,size_t psk_len)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 
ap_vendor_action_rx(void * ctx,const u8 * buf,size_t len,int freq)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 
ap_probe_req_rx(void * ctx,const u8 * sa,const u8 * da,const u8 * bssid,const u8 * ie,size_t ie_len,int ssi_signal)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 
ap_wps_reg_success_cb(void * ctx,const u8 * mac_addr,const u8 * uuid_e)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 
wpas_ap_configured_cb(void * ctx)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 
wpa_supplicant_create_ap(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)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 
wpa_supplicant_ap_deinit(struct wpa_supplicant * wpa_s)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 
ap_tx_status(void * ctx,const u8 * addr,const u8 * buf,size_t len,int ack)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 
ap_eapol_tx_status(void * ctx,const u8 * dst,const u8 * data,size_t len,int ack)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 
ap_client_poll_ok(void * ctx,const u8 * addr)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 
ap_rx_from_unknown_sta(void * ctx,const u8 * addr,int wds)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 
ap_mgmt_rx(void * ctx,struct rx_mgmt * rx_mgmt)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 
ap_mgmt_tx_cb(void * ctx,const u8 * buf,size_t len,u16 stype,int ok)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 
wpa_supplicant_ap_rx_eapol(struct wpa_supplicant * wpa_s,const u8 * src_addr,const u8 * buf,size_t len)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 
wpa_supplicant_ap_wps_pbc(struct wpa_supplicant * wpa_s,const u8 * bssid,const u8 * p2p_dev_addr)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 
wpa_supplicant_ap_wps_cancel(struct wpa_supplicant * wpa_s)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 
wpa_supplicant_ap_wps_pin(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * pin,char * buf,size_t buflen,int timeout)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 
wpas_wps_ap_pin_timeout(void * eloop_data,void * user_ctx)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 
wpas_wps_ap_pin_enable(struct wpa_supplicant * wpa_s,int timeout)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 
wpas_wps_ap_pin_disable(struct wpa_supplicant * wpa_s)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 
wpas_wps_ap_pin_random(struct wpa_supplicant * wpa_s,int timeout)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 
wpas_wps_ap_pin_get(struct wpa_supplicant * wpa_s)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 
wpas_wps_ap_pin_set(struct wpa_supplicant * wpa_s,const char * pin,int timeout)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 
wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant * wpa_s)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 
wpas_ap_wps_nfc_config_token(struct wpa_supplicant * wpa_s,int ndef)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 
wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant * wpa_s,int ndef)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 
wpas_ap_wps_nfc_report_handover(struct wpa_supplicant * wpa_s,const struct wpabuf * req,const struct wpabuf * sel)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 
ap_ctrl_iface_sta_first(struct wpa_supplicant * wpa_s,char * buf,size_t buflen)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 
ap_ctrl_iface_sta(struct wpa_supplicant * wpa_s,const char * txtaddr,char * buf,size_t buflen)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 
ap_ctrl_iface_sta_next(struct wpa_supplicant * wpa_s,const char * txtaddr,char * buf,size_t buflen)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 
ap_ctrl_iface_sta_disassociate(struct wpa_supplicant * wpa_s,const char * txtaddr)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 
ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant * wpa_s,const char * txtaddr)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 
ap_ctrl_iface_wpa_get_status(struct wpa_supplicant * wpa_s,char * buf,size_t buflen,int verbose)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 
wpa_supplicant_ap_update_beacon(struct wpa_supplicant * wpa_s)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 
ap_switch_channel(struct wpa_supplicant * wpa_s,struct csa_settings * settings)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
ap_ctrl_iface_chanswitch(struct wpa_supplicant * wpa_s,const char * pos)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 
wpas_ap_ch_switch(struct wpa_supplicant * wpa_s,int freq,int ht,int offset,int width,int cf1,int cf2)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 
wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant * wpa_s,const u8 * addr)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
wpas_ap_wps_add_nfc_pw(struct wpa_supplicant * wpa_s,u16 pw_id,const struct wpabuf * pw,const u8 * pubkey_hash)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
wpas_ap_stop_ap(struct wpa_supplicant * wpa_s)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
wpas_event_dfs_radar_detected(struct wpa_supplicant * wpa_s,struct dfs_event * radar)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 
wpas_event_dfs_cac_started(struct wpa_supplicant * wpa_s,struct dfs_event * radar)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 
wpas_event_dfs_cac_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)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 
wpas_event_dfs_cac_aborted(struct wpa_supplicant * wpa_s,struct dfs_event * radar)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 
wpas_event_dfs_cac_nop_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)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