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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 "ap/hostapd.h"
19 #include "ap/ap_config.h"
20 #include "ap/ap_drv_ops.h"
21 #ifdef NEED_AP_MLME
22 #include "ap/ieee802_11.h"
23 #endif /* NEED_AP_MLME */
24 #include "ap/beacon.h"
25 #include "ap/ieee802_1x.h"
26 #include "ap/wps_hostapd.h"
27 #include "ap/ctrl_iface_ap.h"
28 #include "wps/wps.h"
29 #include "common/ieee802_11_defs.h"
30 #include "config_ssid.h"
31 #include "config.h"
32 #include "wpa_supplicant_i.h"
33 #include "driver_i.h"
34 #include "p2p_supplicant.h"
35 #include "ap.h"
36 #include "ap/sta_info.h"
37 #include "notify.h"
38
39
40 #ifdef CONFIG_WPS
41 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
42 #endif /* CONFIG_WPS */
43
44
45 #ifdef CONFIG_IEEE80211N
46 static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
47 struct hostapd_config *conf,
48 struct hostapd_hw_modes *mode)
49 {
50 u8 center_chan = 0;
51 u8 channel = conf->channel;
52
53 if (!conf->secondary_channel)
54 goto no_vht;
55
56 center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
57 if (!center_chan)
58 goto no_vht;
59
60 /* Use 80 MHz channel */
61 conf->vht_oper_chwidth = 1;
62 conf->vht_oper_centr_freq_seg0_idx = center_chan;
63 return;
64
65 no_vht:
66 conf->vht_oper_centr_freq_seg0_idx =
67 channel + conf->secondary_channel * 2;
68 }
69 #endif /* CONFIG_IEEE80211N */
70
71
72 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
73 struct wpa_ssid *ssid,
74 struct hostapd_config *conf)
75 {
76 struct hostapd_bss_config *bss = conf->bss[0];
77
78 conf->driver = wpa_s->driver;
79
80 os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
81
82 conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
83 &conf->channel);
84 if (conf->hw_mode == NUM_HOSTAPD_MODES) {
85 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
86 ssid->frequency);
87 return -1;
88 }
89
90 /* TODO: enable HT40 if driver supports it;
91 * drop to 11b if driver does not support 11g */
92
93 #ifdef CONFIG_IEEE80211N
94 /*
95 * Enable HT20 if the driver supports it, by setting conf->ieee80211n
96 * and a mask of allowed capabilities within conf->ht_capab.
97 * Using default config settings for: conf->ht_op_mode_fixed,
98 * conf->secondary_channel, conf->require_ht
99 */
100 if (wpa_s->hw.modes) {
101 struct hostapd_hw_modes *mode = NULL;
102 int i, no_ht = 0;
103 for (i = 0; i < wpa_s->hw.num_modes; i++) {
104 if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
105 mode = &wpa_s->hw.modes[i];
106 break;
107 }
108 }
109
110 #ifdef CONFIG_HT_OVERRIDES
111 if (ssid->disable_ht) {
112 conf->ieee80211n = 0;
113 conf->ht_capab = 0;
114 no_ht = 1;
115 }
116 #endif /* CONFIG_HT_OVERRIDES */
117
118 if (!no_ht && mode && mode->ht_capab) {
119 conf->ieee80211n = 1;
120 #ifdef CONFIG_P2P
121 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
122 (mode->ht_capab &
123 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
124 ssid->ht40)
125 conf->secondary_channel =
126 wpas_p2p_get_ht40_mode(wpa_s, mode,
127 conf->channel);
128 if (conf->secondary_channel)
129 conf->ht_capab |=
130 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
131 #endif /* CONFIG_P2P */
132
133 /*
134 * white-list capabilities that won't cause issues
135 * to connecting stations, while leaving the current
136 * capabilities intact (currently disabled SMPS).
137 */
138 conf->ht_capab |= mode->ht_capab &
139 (HT_CAP_INFO_GREEN_FIELD |
140 HT_CAP_INFO_SHORT_GI20MHZ |
141 HT_CAP_INFO_SHORT_GI40MHZ |
142 HT_CAP_INFO_RX_STBC_MASK |
143 HT_CAP_INFO_MAX_AMSDU_SIZE);
144
145 if (mode->vht_capab && ssid->vht) {
146 conf->ieee80211ac = 1;
147 wpas_conf_ap_vht(wpa_s, conf, mode);
148 }
149 }
150 }
151 #endif /* CONFIG_IEEE80211N */
152
153 #ifdef CONFIG_P2P
154 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
155 (ssid->mode == WPAS_MODE_P2P_GO ||
156 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
157 /* Remove 802.11b rates from supported and basic rate sets */
158 int *list = os_malloc(4 * sizeof(int));
159 if (list) {
160 list[0] = 60;
161 list[1] = 120;
162 list[2] = 240;
163 list[3] = -1;
164 }
165 conf->basic_rates = list;
166
167 list = os_malloc(9 * sizeof(int));
168 if (list) {
169 list[0] = 60;
170 list[1] = 90;
171 list[2] = 120;
172 list[3] = 180;
173 list[4] = 240;
174 list[5] = 360;
175 list[6] = 480;
176 list[7] = 540;
177 list[8] = -1;
178 }
179 conf->supported_rates = list;
180 }
181
182 bss->isolate = !wpa_s->conf->p2p_intra_bss;
183 bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
184 #endif /* CONFIG_P2P */
185
186 if (ssid->ssid_len == 0) {
187 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
188 return -1;
189 }
190 os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
191 bss->ssid.ssid_len = ssid->ssid_len;
192 bss->ssid.ssid_set = 1;
193
194 bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
195
196 if (ssid->auth_alg)
197 bss->auth_algs = ssid->auth_alg;
198
199 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
200 bss->wpa = ssid->proto;
201 bss->wpa_key_mgmt = ssid->key_mgmt;
202 bss->wpa_pairwise = ssid->pairwise_cipher;
203 if (ssid->psk_set) {
204 os_free(bss->ssid.wpa_psk);
205 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
206 if (bss->ssid.wpa_psk == NULL)
207 return -1;
208 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
209 bss->ssid.wpa_psk->group = 1;
210 } else if (ssid->passphrase) {
211 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
212 } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
213 ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
214 struct hostapd_wep_keys *wep = &bss->ssid.wep;
215 int i;
216 for (i = 0; i < NUM_WEP_KEYS; i++) {
217 if (ssid->wep_key_len[i] == 0)
218 continue;
219 wep->key[i] = os_malloc(ssid->wep_key_len[i]);
220 if (wep->key[i] == NULL)
221 return -1;
222 os_memcpy(wep->key[i], ssid->wep_key[i],
223 ssid->wep_key_len[i]);
224 wep->len[i] = ssid->wep_key_len[i];
225 }
226 wep->idx = ssid->wep_tx_keyidx;
227 wep->keys_set = 1;
228 }
229
230 if (ssid->ap_max_inactivity)
231 bss->ap_max_inactivity = ssid->ap_max_inactivity;
232
233 if (ssid->dtim_period)
234 bss->dtim_period = ssid->dtim_period;
235 else if (wpa_s->conf->dtim_period)
236 bss->dtim_period = wpa_s->conf->dtim_period;
237
238 if (ssid->beacon_int)
239 conf->beacon_int = ssid->beacon_int;
240 else if (wpa_s->conf->beacon_int)
241 conf->beacon_int = wpa_s->conf->beacon_int;
242
243 if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
244 bss->rsn_pairwise = bss->wpa_pairwise;
245 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
246 bss->rsn_pairwise);
247
248 if (bss->wpa && bss->ieee802_1x)
249 bss->ssid.security_policy = SECURITY_WPA;
250 else if (bss->wpa)
251 bss->ssid.security_policy = SECURITY_WPA_PSK;
252 else if (bss->ieee802_1x) {
253 int cipher = WPA_CIPHER_NONE;
254 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
255 bss->ssid.wep.default_len = bss->default_wep_key_len;
256 if (bss->default_wep_key_len)
257 cipher = bss->default_wep_key_len >= 13 ?
258 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
259 bss->wpa_group = cipher;
260 bss->wpa_pairwise = cipher;
261 bss->rsn_pairwise = cipher;
262 } else if (bss->ssid.wep.keys_set) {
263 int cipher = WPA_CIPHER_WEP40;
264 if (bss->ssid.wep.len[0] >= 13)
265 cipher = WPA_CIPHER_WEP104;
266 bss->ssid.security_policy = SECURITY_STATIC_WEP;
267 bss->wpa_group = cipher;
268 bss->wpa_pairwise = cipher;
269 bss->rsn_pairwise = cipher;
270 } else {
271 bss->ssid.security_policy = SECURITY_PLAINTEXT;
272 bss->wpa_group = WPA_CIPHER_NONE;
273 bss->wpa_pairwise = WPA_CIPHER_NONE;
274 bss->rsn_pairwise = WPA_CIPHER_NONE;
275 }
276
277 if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
278 (bss->wpa_group == WPA_CIPHER_CCMP ||
279 bss->wpa_group == WPA_CIPHER_GCMP ||
280 bss->wpa_group == WPA_CIPHER_CCMP_256 ||
281 bss->wpa_group == WPA_CIPHER_GCMP_256)) {
282 /*
283 * Strong ciphers do not need frequent rekeying, so increase
284 * the default GTK rekeying period to 24 hours.
285 */
286 bss->wpa_group_rekey = 86400;
287 }
288
289 #ifdef CONFIG_WPS
290 /*
291 * Enable WPS by default for open and WPA/WPA2-Personal network, but
292 * require user interaction to actually use it. Only the internal
293 * Registrar is supported.
294 */
295 if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
296 bss->ssid.security_policy != SECURITY_PLAINTEXT)
297 goto no_wps;
298 #ifdef CONFIG_WPS2
299 if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
300 (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
301 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
302 * configuration */
303 #endif /* CONFIG_WPS2 */
304 bss->eap_server = 1;
305
306 if (!ssid->ignore_broadcast_ssid)
307 bss->wps_state = 2;
308
309 bss->ap_setup_locked = 2;
310 if (wpa_s->conf->config_methods)
311 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
312 os_memcpy(bss->device_type, wpa_s->conf->device_type,
313 WPS_DEV_TYPE_LEN);
314 if (wpa_s->conf->device_name) {
315 bss->device_name = os_strdup(wpa_s->conf->device_name);
316 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
317 }
318 if (wpa_s->conf->manufacturer)
319 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
320 if (wpa_s->conf->model_name)
321 bss->model_name = os_strdup(wpa_s->conf->model_name);
322 if (wpa_s->conf->model_number)
323 bss->model_number = os_strdup(wpa_s->conf->model_number);
324 if (wpa_s->conf->serial_number)
325 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
326 if (is_nil_uuid(wpa_s->conf->uuid))
327 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
328 else
329 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
330 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
331 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
332 no_wps:
333 #endif /* CONFIG_WPS */
334
335 if (wpa_s->max_stations &&
336 wpa_s->max_stations < wpa_s->conf->max_num_sta)
337 bss->max_num_sta = wpa_s->max_stations;
338 else
339 bss->max_num_sta = wpa_s->conf->max_num_sta;
340
341 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
342
343 if (wpa_s->conf->ap_vendor_elements) {
344 bss->vendor_elements =
345 wpabuf_dup(wpa_s->conf->ap_vendor_elements);
346 }
347
348 return 0;
349 }
350
351
352 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
353 {
354 #ifdef CONFIG_P2P
355 struct wpa_supplicant *wpa_s = ctx;
356 const struct ieee80211_mgmt *mgmt;
357 size_t hdr_len;
358
359 mgmt = (const struct ieee80211_mgmt *) buf;
360 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
361 if (hdr_len > len)
362 return;
363 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
364 mgmt->u.action.category,
365 &mgmt->u.action.u.vs_public_action.action,
366 len - hdr_len, freq);
367 #endif /* CONFIG_P2P */
368 }
369
370
371 static void ap_wps_event_cb(void *ctx, enum wps_event event,
372 union wps_event_data *data)
373 {
374 #ifdef CONFIG_P2P
375 struct wpa_supplicant *wpa_s = ctx;
376
377 if (event == WPS_EV_FAIL) {
378 struct wps_event_fail *fail = &data->fail;
379
380 if (wpa_s->parent && wpa_s->parent != wpa_s &&
381 wpa_s == wpa_s->global->p2p_group_formation) {
382 /*
383 * src/ap/wps_hostapd.c has already sent this on the
384 * main interface, so only send on the parent interface
385 * here if needed.
386 */
387 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
388 "msg=%d config_error=%d",
389 fail->msg, fail->config_error);
390 }
391 wpas_p2p_wps_failed(wpa_s, fail);
392 }
393 #endif /* CONFIG_P2P */
394 }
395
396
397 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
398 int authorized, const u8 *p2p_dev_addr)
399 {
400 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
401 }
402
403
404 #ifdef CONFIG_P2P
405 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
406 const u8 *psk, size_t psk_len)
407 {
408
409 struct wpa_supplicant *wpa_s = ctx;
410 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
411 return;
412 wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
413 }
414 #endif /* CONFIG_P2P */
415
416
417 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
418 {
419 #ifdef CONFIG_P2P
420 struct wpa_supplicant *wpa_s = ctx;
421 const struct ieee80211_mgmt *mgmt;
422 size_t hdr_len;
423
424 mgmt = (const struct ieee80211_mgmt *) buf;
425 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
426 if (hdr_len > len)
427 return -1;
428 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
429 mgmt->u.action.category,
430 &mgmt->u.action.u.vs_public_action.action,
431 len - hdr_len, freq);
432 #endif /* CONFIG_P2P */
433 return 0;
434 }
435
436
437 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
438 const u8 *bssid, const u8 *ie, size_t ie_len,
439 int ssi_signal)
440 {
441 #ifdef CONFIG_P2P
442 struct wpa_supplicant *wpa_s = ctx;
443 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
444 ssi_signal);
445 #else /* CONFIG_P2P */
446 return 0;
447 #endif /* CONFIG_P2P */
448 }
449
450
451 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
452 const u8 *uuid_e)
453 {
454 #ifdef CONFIG_P2P
455 struct wpa_supplicant *wpa_s = ctx;
456 wpas_p2p_wps_success(wpa_s, mac_addr, 1);
457 #endif /* CONFIG_P2P */
458 }
459
460
461 static void wpas_ap_configured_cb(void *ctx)
462 {
463 struct wpa_supplicant *wpa_s = ctx;
464
465 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
466
467 if (wpa_s->ap_configured_cb)
468 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
469 wpa_s->ap_configured_cb_data);
470 }
471
472
473 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
474 struct wpa_ssid *ssid)
475 {
476 struct wpa_driver_associate_params params;
477 struct hostapd_iface *hapd_iface;
478 struct hostapd_config *conf;
479 size_t i;
480
481 if (ssid->ssid == NULL || ssid->ssid_len == 0) {
482 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
483 return -1;
484 }
485
486 wpa_supplicant_ap_deinit(wpa_s);
487
488 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
489 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
490
491 os_memset(&params, 0, sizeof(params));
492 params.ssid = ssid->ssid;
493 params.ssid_len = ssid->ssid_len;
494 switch (ssid->mode) {
495 case WPAS_MODE_INFRA:
496 params.mode = IEEE80211_MODE_INFRA;
497 break;
498 case WPAS_MODE_IBSS:
499 params.mode = IEEE80211_MODE_IBSS;
500 break;
501 case WPAS_MODE_AP:
502 case WPAS_MODE_P2P_GO:
503 case WPAS_MODE_P2P_GROUP_FORMATION:
504 params.mode = IEEE80211_MODE_AP;
505 break;
506 }
507 if (ssid->frequency == 0)
508 ssid->frequency = 2462; /* default channel 11 */
509 params.freq = ssid->frequency;
510
511 params.wpa_proto = ssid->proto;
512 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
513 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
514 else
515 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
516 params.key_mgmt_suite = wpa_s->key_mgmt;
517
518 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
519 1);
520 if (wpa_s->pairwise_cipher < 0) {
521 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
522 "cipher.");
523 return -1;
524 }
525 params.pairwise_suite = wpa_s->pairwise_cipher;
526 params.group_suite = params.pairwise_suite;
527
528 #ifdef CONFIG_P2P
529 if (ssid->mode == WPAS_MODE_P2P_GO ||
530 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
531 params.p2p = 1;
532 #endif /* CONFIG_P2P */
533
534 if (wpa_s->parent->set_ap_uapsd)
535 params.uapsd = wpa_s->parent->ap_uapsd;
536 else
537 params.uapsd = -1;
538
539 if (wpa_drv_associate(wpa_s, &params) < 0) {
540 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
541 return -1;
542 }
543
544 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
545 if (hapd_iface == NULL)
546 return -1;
547 hapd_iface->owner = wpa_s;
548 hapd_iface->drv_flags = wpa_s->drv_flags;
549 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
550 hapd_iface->extended_capa = wpa_s->extended_capa;
551 hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
552 hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
553
554 wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
555 if (conf == NULL) {
556 wpa_supplicant_ap_deinit(wpa_s);
557 return -1;
558 }
559
560 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
561 wpa_s->conf->wmm_ac_params,
562 sizeof(wpa_s->conf->wmm_ac_params));
563
564 if (params.uapsd > 0) {
565 conf->bss[0]->wmm_enabled = 1;
566 conf->bss[0]->wmm_uapsd = 1;
567 }
568
569 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
570 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
571 wpa_supplicant_ap_deinit(wpa_s);
572 return -1;
573 }
574
575 #ifdef CONFIG_P2P
576 if (ssid->mode == WPAS_MODE_P2P_GO)
577 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
578 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
579 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
580 P2P_GROUP_FORMATION;
581 #endif /* CONFIG_P2P */
582
583 hapd_iface->num_bss = conf->num_bss;
584 hapd_iface->bss = os_calloc(conf->num_bss,
585 sizeof(struct hostapd_data *));
586 if (hapd_iface->bss == NULL) {
587 wpa_supplicant_ap_deinit(wpa_s);
588 return -1;
589 }
590
591 for (i = 0; i < conf->num_bss; i++) {
592 hapd_iface->bss[i] =
593 hostapd_alloc_bss_data(hapd_iface, conf,
594 conf->bss[i]);
595 if (hapd_iface->bss[i] == NULL) {
596 wpa_supplicant_ap_deinit(wpa_s);
597 return -1;
598 }
599
600 hapd_iface->bss[i]->msg_ctx = wpa_s;
601 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
602 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
603 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
604 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
605 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
606 hostapd_register_probereq_cb(hapd_iface->bss[i],
607 ap_probe_req_rx, wpa_s);
608 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
609 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
610 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
611 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
612 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
613 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
614 #ifdef CONFIG_P2P
615 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
616 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
617 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
618 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
619 ssid);
620 #endif /* CONFIG_P2P */
621 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
622 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
623 }
624
625 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
626 hapd_iface->bss[0]->driver = wpa_s->driver;
627 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
628
629 wpa_s->current_ssid = ssid;
630 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
631 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
632 wpa_s->assoc_freq = ssid->frequency;
633
634 if (hostapd_setup_interface(wpa_s->ap_iface)) {
635 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
636 wpa_supplicant_ap_deinit(wpa_s);
637 return -1;
638 }
639
640 return 0;
641 }
642
643
644 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
645 {
646 #ifdef CONFIG_WPS
647 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
648 #endif /* CONFIG_WPS */
649
650 if (wpa_s->ap_iface == NULL)
651 return;
652
653 wpa_s->current_ssid = NULL;
654 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
655 wpa_s->assoc_freq = 0;
656 #ifdef CONFIG_P2P
657 if (wpa_s->ap_iface->bss)
658 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
659 wpas_p2p_group_deinit(wpa_s);
660 #endif /* CONFIG_P2P */
661 hostapd_interface_deinit(wpa_s->ap_iface);
662 hostapd_interface_free(wpa_s->ap_iface);
663 wpa_s->ap_iface = NULL;
664 wpa_drv_deinit_ap(wpa_s);
665 }
666
667
668 void ap_tx_status(void *ctx, const u8 *addr,
669 const u8 *buf, size_t len, int ack)
670 {
671 #ifdef NEED_AP_MLME
672 struct wpa_supplicant *wpa_s = ctx;
673 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
674 #endif /* NEED_AP_MLME */
675 }
676
677
678 void ap_eapol_tx_status(void *ctx, const u8 *dst,
679 const u8 *data, size_t len, int ack)
680 {
681 #ifdef NEED_AP_MLME
682 struct wpa_supplicant *wpa_s = ctx;
683 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
684 #endif /* NEED_AP_MLME */
685 }
686
687
688 void ap_client_poll_ok(void *ctx, const u8 *addr)
689 {
690 #ifdef NEED_AP_MLME
691 struct wpa_supplicant *wpa_s = ctx;
692 if (wpa_s->ap_iface)
693 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
694 #endif /* NEED_AP_MLME */
695 }
696
697
698 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
699 {
700 #ifdef NEED_AP_MLME
701 struct wpa_supplicant *wpa_s = ctx;
702 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
703 #endif /* NEED_AP_MLME */
704 }
705
706
707 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
708 {
709 #ifdef NEED_AP_MLME
710 struct wpa_supplicant *wpa_s = ctx;
711 struct hostapd_frame_info fi;
712 os_memset(&fi, 0, sizeof(fi));
713 fi.datarate = rx_mgmt->datarate;
714 fi.ssi_signal = rx_mgmt->ssi_signal;
715 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
716 rx_mgmt->frame_len, &fi);
717 #endif /* NEED_AP_MLME */
718 }
719
720
721 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
722 {
723 #ifdef NEED_AP_MLME
724 struct wpa_supplicant *wpa_s = ctx;
725 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
726 #endif /* NEED_AP_MLME */
727 }
728
729
730 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
731 const u8 *src_addr, const u8 *buf, size_t len)
732 {
733 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
734 }
735
736
737 #ifdef CONFIG_WPS
738
739 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
740 const u8 *p2p_dev_addr)
741 {
742 if (!wpa_s->ap_iface)
743 return -1;
744 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
745 p2p_dev_addr);
746 }
747
748
749 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
750 {
751 struct wps_registrar *reg;
752 int reg_sel = 0, wps_sta = 0;
753
754 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
755 return -1;
756
757 reg = wpa_s->ap_iface->bss[0]->wps->registrar;
758 reg_sel = wps_registrar_wps_cancel(reg);
759 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
760 ap_sta_wps_cancel, NULL);
761
762 if (!reg_sel && !wps_sta) {
763 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
764 "time");
765 return -1;
766 }
767
768 /*
769 * There are 2 cases to return wps cancel as success:
770 * 1. When wps cancel was initiated but no connection has been
771 * established with client yet.
772 * 2. Client is in the middle of exchanging WPS messages.
773 */
774
775 return 0;
776 }
777
778
779 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
780 const char *pin, char *buf, size_t buflen,
781 int timeout)
782 {
783 int ret, ret_len = 0;
784
785 if (!wpa_s->ap_iface)
786 return -1;
787
788 if (pin == NULL) {
789 unsigned int rpin = wps_generate_pin();
790 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
791 pin = buf;
792 } else
793 ret_len = os_snprintf(buf, buflen, "%s", pin);
794
795 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
796 timeout);
797 if (ret)
798 return -1;
799 return ret_len;
800 }
801
802
803 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
804 {
805 struct wpa_supplicant *wpa_s = eloop_data;
806 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
807 wpas_wps_ap_pin_disable(wpa_s);
808 }
809
810
811 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
812 {
813 struct hostapd_data *hapd;
814
815 if (wpa_s->ap_iface == NULL)
816 return;
817 hapd = wpa_s->ap_iface->bss[0];
818 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
819 hapd->ap_pin_failures = 0;
820 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
821 if (timeout > 0)
822 eloop_register_timeout(timeout, 0,
823 wpas_wps_ap_pin_timeout, wpa_s, NULL);
824 }
825
826
827 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
828 {
829 struct hostapd_data *hapd;
830
831 if (wpa_s->ap_iface == NULL)
832 return;
833 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
834 hapd = wpa_s->ap_iface->bss[0];
835 os_free(hapd->conf->ap_pin);
836 hapd->conf->ap_pin = NULL;
837 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
838 }
839
840
841 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
842 {
843 struct hostapd_data *hapd;
844 unsigned int pin;
845 char pin_txt[9];
846
847 if (wpa_s->ap_iface == NULL)
848 return NULL;
849 hapd = wpa_s->ap_iface->bss[0];
850 pin = wps_generate_pin();
851 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
852 os_free(hapd->conf->ap_pin);
853 hapd->conf->ap_pin = os_strdup(pin_txt);
854 if (hapd->conf->ap_pin == NULL)
855 return NULL;
856 wpas_wps_ap_pin_enable(wpa_s, timeout);
857
858 return hapd->conf->ap_pin;
859 }
860
861
862 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
863 {
864 struct hostapd_data *hapd;
865 if (wpa_s->ap_iface == NULL)
866 return NULL;
867 hapd = wpa_s->ap_iface->bss[0];
868 return hapd->conf->ap_pin;
869 }
870
871
872 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
873 int timeout)
874 {
875 struct hostapd_data *hapd;
876 char pin_txt[9];
877 int ret;
878
879 if (wpa_s->ap_iface == NULL)
880 return -1;
881 hapd = wpa_s->ap_iface->bss[0];
882 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
883 if (ret < 0 || ret >= (int) sizeof(pin_txt))
884 return -1;
885 os_free(hapd->conf->ap_pin);
886 hapd->conf->ap_pin = os_strdup(pin_txt);
887 if (hapd->conf->ap_pin == NULL)
888 return -1;
889 wpas_wps_ap_pin_enable(wpa_s, timeout);
890
891 return 0;
892 }
893
894
895 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
896 {
897 struct hostapd_data *hapd;
898
899 if (wpa_s->ap_iface == NULL)
900 return;
901 hapd = wpa_s->ap_iface->bss[0];
902
903 /*
904 * Registrar failed to prove its knowledge of the AP PIN. Disable AP
905 * PIN if this happens multiple times to slow down brute force attacks.
906 */
907 hapd->ap_pin_failures++;
908 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
909 hapd->ap_pin_failures);
910 if (hapd->ap_pin_failures < 3)
911 return;
912
913 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
914 hapd->ap_pin_failures = 0;
915 os_free(hapd->conf->ap_pin);
916 hapd->conf->ap_pin = NULL;
917 }
918
919
920 #ifdef CONFIG_WPS_NFC
921
922 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
923 int ndef)
924 {
925 struct hostapd_data *hapd;
926
927 if (wpa_s->ap_iface == NULL)
928 return NULL;
929 hapd = wpa_s->ap_iface->bss[0];
930 return hostapd_wps_nfc_config_token(hapd, ndef);
931 }
932
933
934 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
935 int ndef)
936 {
937 struct hostapd_data *hapd;
938
939 if (wpa_s->ap_iface == NULL)
940 return NULL;
941 hapd = wpa_s->ap_iface->bss[0];
942 return hostapd_wps_nfc_hs_cr(hapd, ndef);
943 }
944
945 #endif /* CONFIG_WPS_NFC */
946
947 #endif /* CONFIG_WPS */
948
949
950 #ifdef CONFIG_CTRL_IFACE
951
952 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
953 char *buf, size_t buflen)
954 {
955 if (wpa_s->ap_iface == NULL)
956 return -1;
957 return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
958 buf, buflen);
959 }
960
961
962 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
963 char *buf, size_t buflen)
964 {
965 if (wpa_s->ap_iface == NULL)
966 return -1;
967 return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
968 buf, buflen);
969 }
970
971
972 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
973 char *buf, size_t buflen)
974 {
975 if (wpa_s->ap_iface == NULL)
976 return -1;
977 return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
978 buf, buflen);
979 }
980
981
982 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
983 const char *txtaddr)
984 {
985 if (wpa_s->ap_iface == NULL)
986 return -1;
987 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
988 txtaddr);
989 }
990
991
992 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
993 const char *txtaddr)
994 {
995 if (wpa_s->ap_iface == NULL)
996 return -1;
997 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
998 txtaddr);
999 }
1000
1001
1002 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
1003 size_t buflen, int verbose)
1004 {
1005 char *pos = buf, *end = buf + buflen;
1006 int ret;
1007 struct hostapd_bss_config *conf;
1008
1009 if (wpa_s->ap_iface == NULL)
1010 return -1;
1011
1012 conf = wpa_s->ap_iface->bss[0]->conf;
1013 if (conf->wpa == 0)
1014 return 0;
1015
1016 ret = os_snprintf(pos, end - pos,
1017 "pairwise_cipher=%s\n"
1018 "group_cipher=%s\n"
1019 "key_mgmt=%s\n",
1020 wpa_cipher_txt(conf->rsn_pairwise),
1021 wpa_cipher_txt(conf->wpa_group),
1022 wpa_key_mgmt_txt(conf->wpa_key_mgmt,
1023 conf->wpa));
1024 if (ret < 0 || ret >= end - pos)
1025 return pos - buf;
1026 pos += ret;
1027 return pos - buf;
1028 }
1029
1030 #endif /* CONFIG_CTRL_IFACE */
1031
1032
1033 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1034 {
1035 struct hostapd_iface *iface = wpa_s->ap_iface;
1036 struct wpa_ssid *ssid = wpa_s->current_ssid;
1037 struct hostapd_data *hapd;
1038
1039 if (ssid == NULL || wpa_s->ap_iface == NULL ||
1040 ssid->mode == WPAS_MODE_INFRA ||
1041 ssid->mode == WPAS_MODE_IBSS)
1042 return -1;
1043
1044 #ifdef CONFIG_P2P
1045 if (ssid->mode == WPAS_MODE_P2P_GO)
1046 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1047 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1048 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1049 P2P_GROUP_FORMATION;
1050 #endif /* CONFIG_P2P */
1051
1052 hapd = iface->bss[0];
1053 if (hapd->drv_priv == NULL)
1054 return -1;
1055 ieee802_11_set_beacons(iface);
1056 hostapd_set_ap_wps_ie(hapd);
1057
1058 return 0;
1059 }
1060
1061
1062 int ap_switch_channel(struct wpa_supplicant *wpa_s,
1063 struct csa_settings *settings)
1064 {
1065 #ifdef NEED_AP_MLME
1066 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1067 return -1;
1068
1069 return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings);
1070 #else /* NEED_AP_MLME */
1071 return -1;
1072 #endif /* NEED_AP_MLME */
1073 }
1074
1075
1076 int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos)
1077 {
1078 struct csa_settings settings;
1079 int ret = hostapd_parse_csa_settings(pos, &settings);
1080
1081 if (ret)
1082 return ret;
1083
1084 return ap_switch_channel(wpa_s, &settings);
1085 }
1086
1087
1088 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1089 int offset, int width, int cf1, int cf2)
1090 {
1091 if (!wpa_s->ap_iface)
1092 return;
1093
1094 wpa_s->assoc_freq = freq;
1095 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset, width, cf1, cf1);
1096 }
1097
1098
1099 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1100 const u8 *addr)
1101 {
1102 struct hostapd_data *hapd;
1103 struct hostapd_bss_config *conf;
1104
1105 if (!wpa_s->ap_iface)
1106 return -1;
1107
1108 if (addr)
1109 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1110 MAC2STR(addr));
1111 else
1112 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1113
1114 hapd = wpa_s->ap_iface->bss[0];
1115 conf = hapd->conf;
1116
1117 os_free(conf->accept_mac);
1118 conf->accept_mac = NULL;
1119 conf->num_accept_mac = 0;
1120 os_free(conf->deny_mac);
1121 conf->deny_mac = NULL;
1122 conf->num_deny_mac = 0;
1123
1124 if (addr == NULL) {
1125 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1126 return 0;
1127 }
1128
1129 conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1130 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1131 if (conf->accept_mac == NULL)
1132 return -1;
1133 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1134 conf->num_accept_mac = 1;
1135
1136 return 0;
1137 }