Get rid of duplicated cipher suite and AKM definitions
[mech_eap.git] / wpa_supplicant / ap.c
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 }