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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 "crypto/dh_group5.h"
19 #include "ap/hostapd.h"
20 #include "ap/ap_config.h"
21 #include "ap/ap_drv_ops.h"
22 #ifdef NEED_AP_MLME
23 #include "ap/ieee802_11.h"
24 #endif /* NEED_AP_MLME */
25 #include "ap/beacon.h"
26 #include "ap/ieee802_1x.h"
27 #include "ap/wps_hostapd.h"
28 #include "ap/ctrl_iface_ap.h"
29 #include "ap/dfs.h"
30 #include "wps/wps.h"
31 #include "common/ieee802_11_defs.h"
32 #include "config_ssid.h"
33 #include "config.h"
34 #include "wpa_supplicant_i.h"
35 #include "driver_i.h"
36 #include "p2p_supplicant.h"
37 #include "ap.h"
38 #include "ap/sta_info.h"
39 #include "notify.h"
40
41
42 #ifdef CONFIG_WPS
43 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
44 #endif /* CONFIG_WPS */
45
46
47 #ifdef CONFIG_IEEE80211N
48 static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
49                              struct wpa_ssid *ssid,
50                              struct hostapd_config *conf,
51                              struct hostapd_hw_modes *mode)
52 {
53 #ifdef CONFIG_P2P
54         u8 center_chan = 0;
55         u8 channel = conf->channel;
56 #endif /* CONFIG_P2P */
57
58         if (!conf->secondary_channel)
59                 goto no_vht;
60
61         /* Use the maximum oper channel width if it's given. */
62         if (ssid->max_oper_chwidth)
63                 conf->vht_oper_chwidth = ssid->max_oper_chwidth;
64
65         ieee80211_freq_to_chan(ssid->vht_center_freq2,
66                                &conf->vht_oper_centr_freq_seg1_idx);
67
68         if (!ssid->p2p_group) {
69                 if (!ssid->vht_center_freq1 ||
70                     conf->vht_oper_chwidth == CHANWIDTH_USE_HT)
71                         goto no_vht;
72                 ieee80211_freq_to_chan(ssid->vht_center_freq1,
73                                        &conf->vht_oper_centr_freq_seg0_idx);
74                 wpa_printf(MSG_DEBUG, "VHT seg0 index %d for AP",
75                            conf->vht_oper_centr_freq_seg0_idx);
76                 return;
77         }
78
79 #ifdef CONFIG_P2P
80         switch (conf->vht_oper_chwidth) {
81         case CHANWIDTH_80MHZ:
82         case CHANWIDTH_80P80MHZ:
83                 center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
84                 wpa_printf(MSG_DEBUG,
85                            "VHT center channel %u for 80 or 80+80 MHz bandwidth",
86                            center_chan);
87                 break;
88         case CHANWIDTH_160MHZ:
89                 center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel);
90                 wpa_printf(MSG_DEBUG,
91                            "VHT center channel %u for 160 MHz bandwidth",
92                            center_chan);
93                 break;
94         default:
95                 /*
96                  * conf->vht_oper_chwidth might not be set for non-P2P GO cases,
97                  * try oper_cwidth 160 MHz first then VHT 80 MHz, if 160 MHz is
98                  * not supported.
99                  */
100                 conf->vht_oper_chwidth = CHANWIDTH_160MHZ;
101                 center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel);
102                 if (center_chan) {
103                         wpa_printf(MSG_DEBUG,
104                                    "VHT center channel %u for auto-selected 160 MHz bandwidth",
105                                    center_chan);
106                 } else {
107                         conf->vht_oper_chwidth = CHANWIDTH_80MHZ;
108                         center_chan = wpas_p2p_get_vht80_center(wpa_s, mode,
109                                                                 channel);
110                         wpa_printf(MSG_DEBUG,
111                                    "VHT center channel %u for auto-selected 80 MHz bandwidth",
112                                    center_chan);
113                 }
114                 break;
115         }
116         if (!center_chan)
117                 goto no_vht;
118
119         conf->vht_oper_centr_freq_seg0_idx = center_chan;
120         wpa_printf(MSG_DEBUG, "VHT seg0 index %d for P2P GO",
121                    conf->vht_oper_centr_freq_seg0_idx);
122         return;
123 #endif /* CONFIG_P2P */
124
125 no_vht:
126         wpa_printf(MSG_DEBUG,
127                    "No VHT higher bandwidth support for the selected channel %d",
128                    conf->channel);
129         conf->vht_oper_centr_freq_seg0_idx =
130                 conf->channel + conf->secondary_channel * 2;
131         conf->vht_oper_chwidth = CHANWIDTH_USE_HT;
132 }
133 #endif /* CONFIG_IEEE80211N */
134
135
136 int wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
137                               struct wpa_ssid *ssid,
138                               struct hostapd_config *conf)
139 {
140         conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
141                                                &conf->channel);
142
143         if (conf->hw_mode == NUM_HOSTAPD_MODES) {
144                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
145                            ssid->frequency);
146                 return -1;
147         }
148
149         /* TODO: enable HT40 if driver supports it;
150          * drop to 11b if driver does not support 11g */
151
152 #ifdef CONFIG_IEEE80211N
153         /*
154          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
155          * and a mask of allowed capabilities within conf->ht_capab.
156          * Using default config settings for: conf->ht_op_mode_fixed,
157          * conf->secondary_channel, conf->require_ht
158          */
159         if (wpa_s->hw.modes) {
160                 struct hostapd_hw_modes *mode = NULL;
161                 int i, no_ht = 0;
162
163                 wpa_printf(MSG_DEBUG,
164                            "Determining HT/VHT options based on driver capabilities (freq=%u chan=%u)",
165                            ssid->frequency, conf->channel);
166
167                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
168                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
169                                 mode = &wpa_s->hw.modes[i];
170                                 break;
171                         }
172                 }
173
174 #ifdef CONFIG_HT_OVERRIDES
175                 if (ssid->disable_ht)
176                         ssid->ht = 0;
177 #endif /* CONFIG_HT_OVERRIDES */
178
179                 if (!ssid->ht) {
180                         wpa_printf(MSG_DEBUG,
181                                    "HT not enabled in network profile");
182                         conf->ieee80211n = 0;
183                         conf->ht_capab = 0;
184                         no_ht = 1;
185                 }
186
187                 if (!no_ht && mode && mode->ht_capab) {
188                         wpa_printf(MSG_DEBUG,
189                                    "Enable HT support (p2p_group=%d 11a=%d ht40_hw_capab=%d ssid->ht40=%d)",
190                                    ssid->p2p_group,
191                                    conf->hw_mode == HOSTAPD_MODE_IEEE80211A,
192                                    !!(mode->ht_capab &
193                                       HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET),
194                                    ssid->ht40);
195                         conf->ieee80211n = 1;
196 #ifdef CONFIG_P2P
197                         if (ssid->p2p_group &&
198                             conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
199                             (mode->ht_capab &
200                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
201                             ssid->ht40) {
202                                 conf->secondary_channel =
203                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
204                                                                conf->channel);
205                                 wpa_printf(MSG_DEBUG,
206                                            "HT secondary channel offset %d for P2P group",
207                                            conf->secondary_channel);
208                         }
209 #endif /* CONFIG_P2P */
210
211                         if (!ssid->p2p_group &&
212                             (mode->ht_capab &
213                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
214                                 conf->secondary_channel = ssid->ht40;
215                                 wpa_printf(MSG_DEBUG,
216                                            "HT secondary channel offset %d for AP",
217                                            conf->secondary_channel);
218                         }
219
220                         if (conf->secondary_channel)
221                                 conf->ht_capab |=
222                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
223
224                         /*
225                          * white-list capabilities that won't cause issues
226                          * to connecting stations, while leaving the current
227                          * capabilities intact (currently disabled SMPS).
228                          */
229                         conf->ht_capab |= mode->ht_capab &
230                                 (HT_CAP_INFO_GREEN_FIELD |
231                                  HT_CAP_INFO_SHORT_GI20MHZ |
232                                  HT_CAP_INFO_SHORT_GI40MHZ |
233                                  HT_CAP_INFO_RX_STBC_MASK |
234                                  HT_CAP_INFO_TX_STBC |
235                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
236
237                         if (mode->vht_capab && ssid->vht) {
238                                 conf->ieee80211ac = 1;
239                                 conf->vht_capab |= mode->vht_capab;
240                                 wpas_conf_ap_vht(wpa_s, ssid, conf, mode);
241                         }
242
243                         if (mode->he_capab[wpas_mode_to_ieee80211_mode(
244                                             ssid->mode)].he_supported &&
245                             ssid->he)
246                                 conf->ieee80211ax = 1;
247                 }
248         }
249
250         if (conf->secondary_channel) {
251                 struct wpa_supplicant *iface;
252
253                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
254                 {
255                         if (iface == wpa_s ||
256                             iface->wpa_state < WPA_AUTHENTICATING ||
257                             (int) iface->assoc_freq != ssid->frequency)
258                                 continue;
259
260                         /*
261                          * Do not allow 40 MHz co-ex PRI/SEC switch to force us
262                          * to change our PRI channel since we have an existing,
263                          * concurrent connection on that channel and doing
264                          * multi-channel concurrency is likely to cause more
265                          * harm than using different PRI/SEC selection in
266                          * environment with multiple BSSes on these two channels
267                          * with mixed 20 MHz or PRI channel selection.
268                          */
269                         conf->no_pri_sec_switch = 1;
270                 }
271         }
272 #endif /* CONFIG_IEEE80211N */
273
274         return 0;
275 }
276
277
278 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
279                                   struct wpa_ssid *ssid,
280                                   struct hostapd_config *conf)
281 {
282         struct hostapd_bss_config *bss = conf->bss[0];
283
284         conf->driver = wpa_s->driver;
285
286         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
287
288         if (wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf))
289                 return -1;
290
291         if (ssid->pbss > 1) {
292                 wpa_printf(MSG_ERROR, "Invalid pbss value(%d) for AP mode",
293                            ssid->pbss);
294                 return -1;
295         }
296         bss->pbss = ssid->pbss;
297
298 #ifdef CONFIG_ACS
299         if (ssid->acs) {
300                 /* Setting channel to 0 in order to enable ACS */
301                 conf->channel = 0;
302                 wpa_printf(MSG_DEBUG, "Use automatic channel selection");
303         }
304 #endif /* CONFIG_ACS */
305
306         if (ieee80211_is_dfs(ssid->frequency, wpa_s->hw.modes,
307                              wpa_s->hw.num_modes) && wpa_s->conf->country[0]) {
308                 conf->ieee80211h = 1;
309                 conf->ieee80211d = 1;
310                 conf->country[0] = wpa_s->conf->country[0];
311                 conf->country[1] = wpa_s->conf->country[1];
312                 conf->country[2] = ' ';
313         }
314
315 #ifdef CONFIG_P2P
316         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
317             (ssid->mode == WPAS_MODE_P2P_GO ||
318              ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
319                 /* Remove 802.11b rates from supported and basic rate sets */
320                 int *list = os_malloc(4 * sizeof(int));
321                 if (list) {
322                         list[0] = 60;
323                         list[1] = 120;
324                         list[2] = 240;
325                         list[3] = -1;
326                 }
327                 conf->basic_rates = list;
328
329                 list = os_malloc(9 * sizeof(int));
330                 if (list) {
331                         list[0] = 60;
332                         list[1] = 90;
333                         list[2] = 120;
334                         list[3] = 180;
335                         list[4] = 240;
336                         list[5] = 360;
337                         list[6] = 480;
338                         list[7] = 540;
339                         list[8] = -1;
340                 }
341                 conf->supported_rates = list;
342         }
343
344 #ifdef CONFIG_IEEE80211AX
345         if (ssid->mode == WPAS_MODE_P2P_GO ||
346             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
347                 conf->ieee80211ax = ssid->he;
348 #endif /* CONFIG_IEEE80211AX */
349
350         bss->isolate = !wpa_s->conf->p2p_intra_bss;
351         bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
352
353         if (ssid->p2p_group) {
354                 os_memcpy(bss->ip_addr_go, wpa_s->p2pdev->conf->ip_addr_go, 4);
355                 os_memcpy(bss->ip_addr_mask, wpa_s->p2pdev->conf->ip_addr_mask,
356                           4);
357                 os_memcpy(bss->ip_addr_start,
358                           wpa_s->p2pdev->conf->ip_addr_start, 4);
359                 os_memcpy(bss->ip_addr_end, wpa_s->p2pdev->conf->ip_addr_end,
360                           4);
361         }
362 #endif /* CONFIG_P2P */
363
364         if (ssid->ssid_len == 0) {
365                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
366                 return -1;
367         }
368         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
369         bss->ssid.ssid_len = ssid->ssid_len;
370         bss->ssid.ssid_set = 1;
371
372         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
373
374         if (ssid->auth_alg)
375                 bss->auth_algs = ssid->auth_alg;
376
377         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
378                 bss->wpa = ssid->proto;
379         if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
380                 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
381         else
382                 bss->wpa_key_mgmt = ssid->key_mgmt;
383         bss->wpa_pairwise = ssid->pairwise_cipher;
384         if (ssid->psk_set) {
385                 bin_clear_free(bss->ssid.wpa_psk, sizeof(*bss->ssid.wpa_psk));
386                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
387                 if (bss->ssid.wpa_psk == NULL)
388                         return -1;
389                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
390                 bss->ssid.wpa_psk->group = 1;
391                 bss->ssid.wpa_psk_set = 1;
392         } else if (ssid->passphrase) {
393                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
394         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
395                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
396                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
397                 int i;
398                 for (i = 0; i < NUM_WEP_KEYS; i++) {
399                         if (ssid->wep_key_len[i] == 0)
400                                 continue;
401                         wep->key[i] = os_memdup(ssid->wep_key[i],
402                                                 ssid->wep_key_len[i]);
403                         if (wep->key[i] == NULL)
404                                 return -1;
405                         wep->len[i] = ssid->wep_key_len[i];
406                 }
407                 wep->idx = ssid->wep_tx_keyidx;
408                 wep->keys_set = 1;
409         }
410
411         if (wpa_s->conf->go_interworking) {
412                 wpa_printf(MSG_DEBUG,
413                            "P2P: Enable Interworking with access_network_type: %d",
414                            wpa_s->conf->go_access_network_type);
415                 bss->interworking = wpa_s->conf->go_interworking;
416                 bss->access_network_type = wpa_s->conf->go_access_network_type;
417                 bss->internet = wpa_s->conf->go_internet;
418                 if (wpa_s->conf->go_venue_group) {
419                         wpa_printf(MSG_DEBUG,
420                                    "P2P: Venue group: %d  Venue type: %d",
421                                    wpa_s->conf->go_venue_group,
422                                    wpa_s->conf->go_venue_type);
423                         bss->venue_group = wpa_s->conf->go_venue_group;
424                         bss->venue_type = wpa_s->conf->go_venue_type;
425                         bss->venue_info_set = 1;
426                 }
427         }
428
429         if (ssid->ap_max_inactivity)
430                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
431
432         if (ssid->dtim_period)
433                 bss->dtim_period = ssid->dtim_period;
434         else if (wpa_s->conf->dtim_period)
435                 bss->dtim_period = wpa_s->conf->dtim_period;
436
437         if (ssid->beacon_int)
438                 conf->beacon_int = ssid->beacon_int;
439         else if (wpa_s->conf->beacon_int)
440                 conf->beacon_int = wpa_s->conf->beacon_int;
441
442 #ifdef CONFIG_P2P
443         if (ssid->mode == WPAS_MODE_P2P_GO ||
444             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
445                 if (wpa_s->conf->p2p_go_ctwindow > conf->beacon_int) {
446                         wpa_printf(MSG_INFO,
447                                    "CTWindow (%d) is bigger than beacon interval (%d) - avoid configuring it",
448                                    wpa_s->conf->p2p_go_ctwindow,
449                                    conf->beacon_int);
450                         conf->p2p_go_ctwindow = 0;
451                 } else {
452                         conf->p2p_go_ctwindow = wpa_s->conf->p2p_go_ctwindow;
453                 }
454         }
455 #endif /* CONFIG_P2P */
456
457         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
458                 bss->rsn_pairwise = bss->wpa_pairwise;
459         bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
460                                                     bss->rsn_pairwise);
461
462         if (bss->wpa && bss->ieee802_1x)
463                 bss->ssid.security_policy = SECURITY_WPA;
464         else if (bss->wpa)
465                 bss->ssid.security_policy = SECURITY_WPA_PSK;
466         else if (bss->ieee802_1x) {
467                 int cipher = WPA_CIPHER_NONE;
468                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
469                 bss->ssid.wep.default_len = bss->default_wep_key_len;
470                 if (bss->default_wep_key_len)
471                         cipher = bss->default_wep_key_len >= 13 ?
472                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
473                 bss->wpa_group = cipher;
474                 bss->wpa_pairwise = cipher;
475                 bss->rsn_pairwise = cipher;
476         } else if (bss->ssid.wep.keys_set) {
477                 int cipher = WPA_CIPHER_WEP40;
478                 if (bss->ssid.wep.len[0] >= 13)
479                         cipher = WPA_CIPHER_WEP104;
480                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
481                 bss->wpa_group = cipher;
482                 bss->wpa_pairwise = cipher;
483                 bss->rsn_pairwise = cipher;
484         } else {
485                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
486                 bss->wpa_group = WPA_CIPHER_NONE;
487                 bss->wpa_pairwise = WPA_CIPHER_NONE;
488                 bss->rsn_pairwise = WPA_CIPHER_NONE;
489         }
490
491         if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
492             (bss->wpa_group == WPA_CIPHER_CCMP ||
493              bss->wpa_group == WPA_CIPHER_GCMP ||
494              bss->wpa_group == WPA_CIPHER_CCMP_256 ||
495              bss->wpa_group == WPA_CIPHER_GCMP_256)) {
496                 /*
497                  * Strong ciphers do not need frequent rekeying, so increase
498                  * the default GTK rekeying period to 24 hours.
499                  */
500                 bss->wpa_group_rekey = 86400;
501         }
502
503 #ifdef CONFIG_IEEE80211W
504         if (ssid->ieee80211w != MGMT_FRAME_PROTECTION_DEFAULT)
505                 bss->ieee80211w = ssid->ieee80211w;
506 #endif /* CONFIG_IEEE80211W */
507
508 #ifdef CONFIG_OCV
509         bss->ocv = ssid->ocv;
510 #endif /* CONFIG_OCV */
511
512 #ifdef CONFIG_WPS
513         /*
514          * Enable WPS by default for open and WPA/WPA2-Personal network, but
515          * require user interaction to actually use it. Only the internal
516          * Registrar is supported.
517          */
518         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
519             bss->ssid.security_policy != SECURITY_PLAINTEXT)
520                 goto no_wps;
521         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
522             (!(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) ||
523              !(bss->wpa & 2)))
524                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
525                               * configuration */
526         if (ssid->wps_disabled)
527                 goto no_wps;
528         bss->eap_server = 1;
529
530         if (!ssid->ignore_broadcast_ssid)
531                 bss->wps_state = 2;
532
533         bss->ap_setup_locked = 2;
534         if (wpa_s->conf->config_methods)
535                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
536         os_memcpy(bss->device_type, wpa_s->conf->device_type,
537                   WPS_DEV_TYPE_LEN);
538         if (wpa_s->conf->device_name) {
539                 bss->device_name = os_strdup(wpa_s->conf->device_name);
540                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
541         }
542         if (wpa_s->conf->manufacturer)
543                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
544         if (wpa_s->conf->model_name)
545                 bss->model_name = os_strdup(wpa_s->conf->model_name);
546         if (wpa_s->conf->model_number)
547                 bss->model_number = os_strdup(wpa_s->conf->model_number);
548         if (wpa_s->conf->serial_number)
549                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
550         if (is_nil_uuid(wpa_s->conf->uuid))
551                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
552         else
553                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
554         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
555         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
556         if (ssid->eap.fragment_size != DEFAULT_FRAGMENT_SIZE)
557                 bss->fragment_size = ssid->eap.fragment_size;
558 no_wps:
559 #endif /* CONFIG_WPS */
560
561         if (wpa_s->max_stations &&
562             wpa_s->max_stations < wpa_s->conf->max_num_sta)
563                 bss->max_num_sta = wpa_s->max_stations;
564         else
565                 bss->max_num_sta = wpa_s->conf->max_num_sta;
566
567         if (!bss->isolate)
568                 bss->isolate = wpa_s->conf->ap_isolate;
569
570         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
571
572         if (wpa_s->conf->ap_vendor_elements) {
573                 bss->vendor_elements =
574                         wpabuf_dup(wpa_s->conf->ap_vendor_elements);
575         }
576
577         bss->ftm_responder = wpa_s->conf->ftm_responder;
578         bss->ftm_initiator = wpa_s->conf->ftm_initiator;
579
580         return 0;
581 }
582
583
584 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
585 {
586 #ifdef CONFIG_P2P
587         struct wpa_supplicant *wpa_s = ctx;
588         const struct ieee80211_mgmt *mgmt;
589
590         mgmt = (const struct ieee80211_mgmt *) buf;
591         if (len < IEEE80211_HDRLEN + 1)
592                 return;
593         if (mgmt->u.action.category != WLAN_ACTION_PUBLIC)
594                 return;
595         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
596                            mgmt->u.action.category,
597                            buf + IEEE80211_HDRLEN + 1,
598                            len - IEEE80211_HDRLEN - 1, freq);
599 #endif /* CONFIG_P2P */
600 }
601
602
603 static void ap_wps_event_cb(void *ctx, enum wps_event event,
604                             union wps_event_data *data)
605 {
606 #ifdef CONFIG_P2P
607         struct wpa_supplicant *wpa_s = ctx;
608
609         if (event == WPS_EV_FAIL) {
610                 struct wps_event_fail *fail = &data->fail;
611
612                 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s &&
613                     wpa_s == wpa_s->global->p2p_group_formation) {
614                         /*
615                          * src/ap/wps_hostapd.c has already sent this on the
616                          * main interface, so only send on the parent interface
617                          * here if needed.
618                          */
619                         wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL
620                                 "msg=%d config_error=%d",
621                                 fail->msg, fail->config_error);
622                 }
623                 wpas_p2p_wps_failed(wpa_s, fail);
624         }
625 #endif /* CONFIG_P2P */
626 }
627
628
629 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
630                                  int authorized, const u8 *p2p_dev_addr)
631 {
632         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
633 }
634
635
636 #ifdef CONFIG_P2P
637 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
638                           const u8 *psk, size_t psk_len)
639 {
640
641         struct wpa_supplicant *wpa_s = ctx;
642         if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
643                 return;
644         wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
645 }
646 #endif /* CONFIG_P2P */
647
648
649 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
650 {
651 #ifdef CONFIG_P2P
652         struct wpa_supplicant *wpa_s = ctx;
653         const struct ieee80211_mgmt *mgmt;
654
655         mgmt = (const struct ieee80211_mgmt *) buf;
656         if (len < IEEE80211_HDRLEN + 1)
657                 return -1;
658         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
659                            mgmt->u.action.category,
660                            buf + IEEE80211_HDRLEN + 1,
661                            len - IEEE80211_HDRLEN - 1, freq);
662 #endif /* CONFIG_P2P */
663         return 0;
664 }
665
666
667 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
668                            const u8 *bssid, const u8 *ie, size_t ie_len,
669                            int ssi_signal)
670 {
671         struct wpa_supplicant *wpa_s = ctx;
672         unsigned int freq = 0;
673
674         if (wpa_s->ap_iface)
675                 freq = wpa_s->ap_iface->freq;
676
677         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
678                                      freq, ssi_signal);
679 }
680
681
682 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
683                                   const u8 *uuid_e)
684 {
685         struct wpa_supplicant *wpa_s = ctx;
686         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
687 }
688
689
690 static void wpas_ap_configured_cb(void *ctx)
691 {
692         struct wpa_supplicant *wpa_s = ctx;
693
694         wpa_printf(MSG_DEBUG, "AP interface setup completed - state %s",
695                    hostapd_state_text(wpa_s->ap_iface->state));
696         if (wpa_s->ap_iface->state == HAPD_IFACE_DISABLED) {
697                 wpa_supplicant_ap_deinit(wpa_s);
698                 return;
699         }
700
701 #ifdef CONFIG_ACS
702         if (wpa_s->current_ssid && wpa_s->current_ssid->acs) {
703                 wpa_s->assoc_freq = wpa_s->ap_iface->freq;
704                 wpa_s->current_ssid->frequency = wpa_s->ap_iface->freq;
705         }
706 #endif /* CONFIG_ACS */
707
708         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
709
710         if (wpa_s->ap_configured_cb)
711                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
712                                         wpa_s->ap_configured_cb_data);
713 }
714
715
716 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
717                              struct wpa_ssid *ssid)
718 {
719         struct wpa_driver_associate_params params;
720         struct hostapd_iface *hapd_iface;
721         struct hostapd_config *conf;
722         size_t i;
723
724         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
725                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
726                 return -1;
727         }
728
729         wpa_supplicant_ap_deinit(wpa_s);
730
731         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
732                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
733
734         os_memset(&params, 0, sizeof(params));
735         params.ssid = ssid->ssid;
736         params.ssid_len = ssid->ssid_len;
737         switch (ssid->mode) {
738         case WPAS_MODE_AP:
739         case WPAS_MODE_P2P_GO:
740         case WPAS_MODE_P2P_GROUP_FORMATION:
741                 params.mode = IEEE80211_MODE_AP;
742                 break;
743         default:
744                 return -1;
745         }
746         if (ssid->frequency == 0)
747                 ssid->frequency = 2462; /* default channel 11 */
748         params.freq.freq = ssid->frequency;
749
750         params.wpa_proto = ssid->proto;
751         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
752                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
753         else
754                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
755         params.key_mgmt_suite = wpa_s->key_mgmt;
756
757         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
758                                                           1);
759         if (wpa_s->pairwise_cipher < 0) {
760                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
761                            "cipher.");
762                 return -1;
763         }
764         params.pairwise_suite = wpa_s->pairwise_cipher;
765         params.group_suite = params.pairwise_suite;
766
767 #ifdef CONFIG_P2P
768         if (ssid->mode == WPAS_MODE_P2P_GO ||
769             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
770                 params.p2p = 1;
771 #endif /* CONFIG_P2P */
772
773         if (wpa_s->p2pdev->set_ap_uapsd)
774                 params.uapsd = wpa_s->p2pdev->ap_uapsd;
775         else if (params.p2p && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
776                 params.uapsd = 1; /* mandatory for P2P GO */
777         else
778                 params.uapsd = -1;
779
780         if (ieee80211_is_dfs(params.freq.freq, wpa_s->hw.modes,
781                              wpa_s->hw.num_modes))
782                 params.freq.freq = 0; /* set channel after CAC */
783
784         if (params.p2p)
785                 wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_GO);
786         else
787                 wpa_drv_get_ext_capa(wpa_s, WPA_IF_AP_BSS);
788
789         if (wpa_drv_associate(wpa_s, &params) < 0) {
790                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
791                 return -1;
792         }
793
794         wpa_s->ap_iface = hapd_iface = hostapd_alloc_iface();
795         if (hapd_iface == NULL)
796                 return -1;
797         hapd_iface->owner = wpa_s;
798         hapd_iface->drv_flags = wpa_s->drv_flags;
799         hapd_iface->smps_modes = wpa_s->drv_smps_modes;
800         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
801         hapd_iface->extended_capa = wpa_s->extended_capa;
802         hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
803         hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
804
805         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
806         if (conf == NULL) {
807                 wpa_supplicant_ap_deinit(wpa_s);
808                 return -1;
809         }
810
811         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
812                   wpa_s->conf->wmm_ac_params,
813                   sizeof(wpa_s->conf->wmm_ac_params));
814
815         if (params.uapsd > 0) {
816                 conf->bss[0]->wmm_enabled = 1;
817                 conf->bss[0]->wmm_uapsd = 1;
818         }
819
820         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
821                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
822                 wpa_supplicant_ap_deinit(wpa_s);
823                 return -1;
824         }
825
826 #ifdef CONFIG_P2P
827         if (ssid->mode == WPAS_MODE_P2P_GO)
828                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
829         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
830                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
831                         P2P_GROUP_FORMATION;
832 #endif /* CONFIG_P2P */
833
834         hapd_iface->num_bss = conf->num_bss;
835         hapd_iface->bss = os_calloc(conf->num_bss,
836                                     sizeof(struct hostapd_data *));
837         if (hapd_iface->bss == NULL) {
838                 wpa_supplicant_ap_deinit(wpa_s);
839                 return -1;
840         }
841
842         for (i = 0; i < conf->num_bss; i++) {
843                 hapd_iface->bss[i] =
844                         hostapd_alloc_bss_data(hapd_iface, conf,
845                                                conf->bss[i]);
846                 if (hapd_iface->bss[i] == NULL) {
847                         wpa_supplicant_ap_deinit(wpa_s);
848                         return -1;
849                 }
850
851                 hapd_iface->bss[i]->msg_ctx = wpa_s;
852                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->p2pdev;
853                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
854                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
855                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
856                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
857                 hostapd_register_probereq_cb(hapd_iface->bss[i],
858                                              ap_probe_req_rx, wpa_s);
859                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
860                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
861                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
862                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
863                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
864                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
865 #ifdef CONFIG_P2P
866                 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
867                 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
868                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
869                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
870                                                                     ssid);
871 #endif /* CONFIG_P2P */
872                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
873                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
874 #ifdef CONFIG_TESTING_OPTIONS
875                 hapd_iface->bss[i]->ext_eapol_frame_io =
876                         wpa_s->ext_eapol_frame_io;
877 #endif /* CONFIG_TESTING_OPTIONS */
878         }
879
880         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
881         hapd_iface->bss[0]->driver = wpa_s->driver;
882         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
883
884         wpa_s->current_ssid = ssid;
885         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
886         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
887         wpa_s->assoc_freq = ssid->frequency;
888
889 #if defined(CONFIG_P2P) && defined(CONFIG_ACS)
890         if (wpa_s->p2p_go_do_acs) {
891                 wpa_s->ap_iface->conf->channel = 0;
892                 wpa_s->ap_iface->conf->hw_mode = wpa_s->p2p_go_acs_band;
893                 ssid->acs = 1;
894         }
895 #endif /* CONFIG_P2P && CONFIG_ACS */
896
897         if (hostapd_setup_interface(wpa_s->ap_iface)) {
898                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
899                 wpa_supplicant_ap_deinit(wpa_s);
900                 return -1;
901         }
902
903         return 0;
904 }
905
906
907 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
908 {
909 #ifdef CONFIG_WPS
910         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
911 #endif /* CONFIG_WPS */
912
913         if (wpa_s->ap_iface == NULL)
914                 return;
915
916         wpa_s->current_ssid = NULL;
917         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
918         wpa_s->assoc_freq = 0;
919         wpas_p2p_ap_deinit(wpa_s);
920         wpa_s->ap_iface->driver_ap_teardown =
921                 !!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
922
923         hostapd_interface_deinit(wpa_s->ap_iface);
924         hostapd_interface_free(wpa_s->ap_iface);
925         wpa_s->ap_iface = NULL;
926         wpa_drv_deinit_ap(wpa_s);
927         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
928                 " reason=%d locally_generated=1",
929                 MAC2STR(wpa_s->own_addr), WLAN_REASON_DEAUTH_LEAVING);
930 }
931
932
933 void ap_tx_status(void *ctx, const u8 *addr,
934                   const u8 *buf, size_t len, int ack)
935 {
936 #ifdef NEED_AP_MLME
937         struct wpa_supplicant *wpa_s = ctx;
938         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
939 #endif /* NEED_AP_MLME */
940 }
941
942
943 void ap_eapol_tx_status(void *ctx, const u8 *dst,
944                         const u8 *data, size_t len, int ack)
945 {
946 #ifdef NEED_AP_MLME
947         struct wpa_supplicant *wpa_s = ctx;
948         if (!wpa_s->ap_iface)
949                 return;
950         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
951 #endif /* NEED_AP_MLME */
952 }
953
954
955 void ap_client_poll_ok(void *ctx, const u8 *addr)
956 {
957 #ifdef NEED_AP_MLME
958         struct wpa_supplicant *wpa_s = ctx;
959         if (wpa_s->ap_iface)
960                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
961 #endif /* NEED_AP_MLME */
962 }
963
964
965 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
966 {
967 #ifdef NEED_AP_MLME
968         struct wpa_supplicant *wpa_s = ctx;
969         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
970 #endif /* NEED_AP_MLME */
971 }
972
973
974 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
975 {
976 #ifdef NEED_AP_MLME
977         struct wpa_supplicant *wpa_s = ctx;
978         struct hostapd_frame_info fi;
979         os_memset(&fi, 0, sizeof(fi));
980         fi.datarate = rx_mgmt->datarate;
981         fi.ssi_signal = rx_mgmt->ssi_signal;
982         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
983                         rx_mgmt->frame_len, &fi);
984 #endif /* NEED_AP_MLME */
985 }
986
987
988 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
989 {
990 #ifdef NEED_AP_MLME
991         struct wpa_supplicant *wpa_s = ctx;
992         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
993 #endif /* NEED_AP_MLME */
994 }
995
996
997 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
998                                 const u8 *src_addr, const u8 *buf, size_t len)
999 {
1000         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
1001 }
1002
1003
1004 #ifdef CONFIG_WPS
1005
1006 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
1007                               const u8 *p2p_dev_addr)
1008 {
1009         if (!wpa_s->ap_iface)
1010                 return -1;
1011         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
1012                                          p2p_dev_addr);
1013 }
1014
1015
1016 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
1017 {
1018         struct wps_registrar *reg;
1019         int reg_sel = 0, wps_sta = 0;
1020
1021         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
1022                 return -1;
1023
1024         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
1025         reg_sel = wps_registrar_wps_cancel(reg);
1026         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
1027                                   ap_sta_wps_cancel, NULL);
1028
1029         if (!reg_sel && !wps_sta) {
1030                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
1031                            "time");
1032                 return -1;
1033         }
1034
1035         /*
1036          * There are 2 cases to return wps cancel as success:
1037          * 1. When wps cancel was initiated but no connection has been
1038          *    established with client yet.
1039          * 2. Client is in the middle of exchanging WPS messages.
1040          */
1041
1042         return 0;
1043 }
1044
1045
1046 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
1047                               const char *pin, char *buf, size_t buflen,
1048                               int timeout)
1049 {
1050         int ret, ret_len = 0;
1051
1052         if (!wpa_s->ap_iface)
1053                 return -1;
1054
1055         if (pin == NULL) {
1056                 unsigned int rpin;
1057
1058                 if (wps_generate_pin(&rpin) < 0)
1059                         return -1;
1060                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
1061                 if (os_snprintf_error(buflen, ret_len))
1062                         return -1;
1063                 pin = buf;
1064         } else if (buf) {
1065                 ret_len = os_snprintf(buf, buflen, "%s", pin);
1066                 if (os_snprintf_error(buflen, ret_len))
1067                         return -1;
1068         }
1069
1070         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
1071                                   timeout);
1072         if (ret)
1073                 return -1;
1074         return ret_len;
1075 }
1076
1077
1078 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1079 {
1080         struct wpa_supplicant *wpa_s = eloop_data;
1081         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1082         wpas_wps_ap_pin_disable(wpa_s);
1083 }
1084
1085
1086 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
1087 {
1088         struct hostapd_data *hapd;
1089
1090         if (wpa_s->ap_iface == NULL)
1091                 return;
1092         hapd = wpa_s->ap_iface->bss[0];
1093         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1094         hapd->ap_pin_failures = 0;
1095         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
1096         if (timeout > 0)
1097                 eloop_register_timeout(timeout, 0,
1098                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
1099 }
1100
1101
1102 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
1103 {
1104         struct hostapd_data *hapd;
1105
1106         if (wpa_s->ap_iface == NULL)
1107                 return;
1108         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1109         hapd = wpa_s->ap_iface->bss[0];
1110         os_free(hapd->conf->ap_pin);
1111         hapd->conf->ap_pin = NULL;
1112         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
1113 }
1114
1115
1116 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
1117 {
1118         struct hostapd_data *hapd;
1119         unsigned int pin;
1120         char pin_txt[9];
1121
1122         if (wpa_s->ap_iface == NULL)
1123                 return NULL;
1124         hapd = wpa_s->ap_iface->bss[0];
1125         if (wps_generate_pin(&pin) < 0)
1126                 return NULL;
1127         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
1128         os_free(hapd->conf->ap_pin);
1129         hapd->conf->ap_pin = os_strdup(pin_txt);
1130         if (hapd->conf->ap_pin == NULL)
1131                 return NULL;
1132         wpas_wps_ap_pin_enable(wpa_s, timeout);
1133
1134         return hapd->conf->ap_pin;
1135 }
1136
1137
1138 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
1139 {
1140         struct hostapd_data *hapd;
1141         if (wpa_s->ap_iface == NULL)
1142                 return NULL;
1143         hapd = wpa_s->ap_iface->bss[0];
1144         return hapd->conf->ap_pin;
1145 }
1146
1147
1148 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
1149                         int timeout)
1150 {
1151         struct hostapd_data *hapd;
1152         char pin_txt[9];
1153         int ret;
1154
1155         if (wpa_s->ap_iface == NULL)
1156                 return -1;
1157         hapd = wpa_s->ap_iface->bss[0];
1158         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
1159         if (os_snprintf_error(sizeof(pin_txt), ret))
1160                 return -1;
1161         os_free(hapd->conf->ap_pin);
1162         hapd->conf->ap_pin = os_strdup(pin_txt);
1163         if (hapd->conf->ap_pin == NULL)
1164                 return -1;
1165         wpas_wps_ap_pin_enable(wpa_s, timeout);
1166
1167         return 0;
1168 }
1169
1170
1171 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
1172 {
1173         struct hostapd_data *hapd;
1174
1175         if (wpa_s->ap_iface == NULL)
1176                 return;
1177         hapd = wpa_s->ap_iface->bss[0];
1178
1179         /*
1180          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
1181          * PIN if this happens multiple times to slow down brute force attacks.
1182          */
1183         hapd->ap_pin_failures++;
1184         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
1185                    hapd->ap_pin_failures);
1186         if (hapd->ap_pin_failures < 3)
1187                 return;
1188
1189         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
1190         hapd->ap_pin_failures = 0;
1191         os_free(hapd->conf->ap_pin);
1192         hapd->conf->ap_pin = NULL;
1193 }
1194
1195
1196 #ifdef CONFIG_WPS_NFC
1197
1198 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
1199                                              int ndef)
1200 {
1201         struct hostapd_data *hapd;
1202
1203         if (wpa_s->ap_iface == NULL)
1204                 return NULL;
1205         hapd = wpa_s->ap_iface->bss[0];
1206         return hostapd_wps_nfc_config_token(hapd, ndef);
1207 }
1208
1209
1210 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
1211                                              int ndef)
1212 {
1213         struct hostapd_data *hapd;
1214
1215         if (wpa_s->ap_iface == NULL)
1216                 return NULL;
1217         hapd = wpa_s->ap_iface->bss[0];
1218         return hostapd_wps_nfc_hs_cr(hapd, ndef);
1219 }
1220
1221
1222 int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
1223                                     const struct wpabuf *req,
1224                                     const struct wpabuf *sel)
1225 {
1226         struct hostapd_data *hapd;
1227
1228         if (wpa_s->ap_iface == NULL)
1229                 return -1;
1230         hapd = wpa_s->ap_iface->bss[0];
1231         return hostapd_wps_nfc_report_handover(hapd, req, sel);
1232 }
1233
1234 #endif /* CONFIG_WPS_NFC */
1235
1236 #endif /* CONFIG_WPS */
1237
1238
1239 #ifdef CONFIG_CTRL_IFACE
1240
1241 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
1242                             char *buf, size_t buflen)
1243 {
1244         struct hostapd_data *hapd;
1245
1246         if (wpa_s->ap_iface)
1247                 hapd = wpa_s->ap_iface->bss[0];
1248         else if (wpa_s->ifmsh)
1249                 hapd = wpa_s->ifmsh->bss[0];
1250         else
1251                 return -1;
1252         return hostapd_ctrl_iface_sta_first(hapd, buf, buflen);
1253 }
1254
1255
1256 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
1257                       char *buf, size_t buflen)
1258 {
1259         struct hostapd_data *hapd;
1260
1261         if (wpa_s->ap_iface)
1262                 hapd = wpa_s->ap_iface->bss[0];
1263         else if (wpa_s->ifmsh)
1264                 hapd = wpa_s->ifmsh->bss[0];
1265         else
1266                 return -1;
1267         return hostapd_ctrl_iface_sta(hapd, txtaddr, buf, buflen);
1268 }
1269
1270
1271 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
1272                            char *buf, size_t buflen)
1273 {
1274         struct hostapd_data *hapd;
1275
1276         if (wpa_s->ap_iface)
1277                 hapd = wpa_s->ap_iface->bss[0];
1278         else if (wpa_s->ifmsh)
1279                 hapd = wpa_s->ifmsh->bss[0];
1280         else
1281                 return -1;
1282         return hostapd_ctrl_iface_sta_next(hapd, txtaddr, buf, buflen);
1283 }
1284
1285
1286 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
1287                                    const char *txtaddr)
1288 {
1289         if (wpa_s->ap_iface == NULL)
1290                 return -1;
1291         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
1292                                                txtaddr);
1293 }
1294
1295
1296 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
1297                                      const char *txtaddr)
1298 {
1299         if (wpa_s->ap_iface == NULL)
1300                 return -1;
1301         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
1302                                                  txtaddr);
1303 }
1304
1305
1306 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
1307                                  size_t buflen, int verbose)
1308 {
1309         char *pos = buf, *end = buf + buflen;
1310         int ret;
1311         struct hostapd_bss_config *conf;
1312
1313         if (wpa_s->ap_iface == NULL)
1314                 return -1;
1315
1316         conf = wpa_s->ap_iface->bss[0]->conf;
1317         if (conf->wpa == 0)
1318                 return 0;
1319
1320         ret = os_snprintf(pos, end - pos,
1321                           "pairwise_cipher=%s\n"
1322                           "group_cipher=%s\n"
1323                           "key_mgmt=%s\n",
1324                           wpa_cipher_txt(conf->rsn_pairwise),
1325                           wpa_cipher_txt(conf->wpa_group),
1326                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
1327                                            conf->wpa));
1328         if (os_snprintf_error(end - pos, ret))
1329                 return pos - buf;
1330         pos += ret;
1331         return pos - buf;
1332 }
1333
1334 #endif /* CONFIG_CTRL_IFACE */
1335
1336
1337 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1338 {
1339         struct hostapd_iface *iface = wpa_s->ap_iface;
1340         struct wpa_ssid *ssid = wpa_s->current_ssid;
1341         struct hostapd_data *hapd;
1342
1343         if (ssid == NULL || wpa_s->ap_iface == NULL ||
1344             ssid->mode == WPAS_MODE_INFRA ||
1345             ssid->mode == WPAS_MODE_IBSS)
1346                 return -1;
1347
1348 #ifdef CONFIG_P2P
1349         if (ssid->mode == WPAS_MODE_P2P_GO)
1350                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1351         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1352                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1353                         P2P_GROUP_FORMATION;
1354 #endif /* CONFIG_P2P */
1355
1356         hapd = iface->bss[0];
1357         if (hapd->drv_priv == NULL)
1358                 return -1;
1359         ieee802_11_set_beacons(iface);
1360         hostapd_set_ap_wps_ie(hapd);
1361
1362         return 0;
1363 }
1364
1365
1366 int ap_switch_channel(struct wpa_supplicant *wpa_s,
1367                       struct csa_settings *settings)
1368 {
1369 #ifdef NEED_AP_MLME
1370         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1371                 return -1;
1372
1373         return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings);
1374 #else /* NEED_AP_MLME */
1375         return -1;
1376 #endif /* NEED_AP_MLME */
1377 }
1378
1379
1380 #ifdef CONFIG_CTRL_IFACE
1381 int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos)
1382 {
1383         struct csa_settings settings;
1384         int ret = hostapd_parse_csa_settings(pos, &settings);
1385
1386         if (ret)
1387                 return ret;
1388
1389         return ap_switch_channel(wpa_s, &settings);
1390 }
1391 #endif /* CONFIG_CTRL_IFACE */
1392
1393
1394 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1395                        int offset, int width, int cf1, int cf2, int finished)
1396 {
1397         struct hostapd_iface *iface = wpa_s->ap_iface;
1398
1399         if (!iface)
1400                 iface = wpa_s->ifmsh;
1401         if (!iface)
1402                 return;
1403         wpa_s->assoc_freq = freq;
1404         if (wpa_s->current_ssid)
1405                 wpa_s->current_ssid->frequency = freq;
1406         hostapd_event_ch_switch(iface->bss[0], freq, ht,
1407                                 offset, width, cf1, cf2, finished);
1408 }
1409
1410
1411 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1412                                       const u8 *addr)
1413 {
1414         struct hostapd_data *hapd;
1415         struct hostapd_bss_config *conf;
1416
1417         if (!wpa_s->ap_iface)
1418                 return -1;
1419
1420         if (addr)
1421                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1422                            MAC2STR(addr));
1423         else
1424                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1425
1426         hapd = wpa_s->ap_iface->bss[0];
1427         conf = hapd->conf;
1428
1429         os_free(conf->accept_mac);
1430         conf->accept_mac = NULL;
1431         conf->num_accept_mac = 0;
1432         os_free(conf->deny_mac);
1433         conf->deny_mac = NULL;
1434         conf->num_deny_mac = 0;
1435
1436         if (addr == NULL) {
1437                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1438                 return 0;
1439         }
1440
1441         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1442         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1443         if (conf->accept_mac == NULL)
1444                 return -1;
1445         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1446         conf->num_accept_mac = 1;
1447
1448         return 0;
1449 }
1450
1451
1452 #ifdef CONFIG_WPS_NFC
1453 int wpas_ap_wps_add_nfc_pw(struct wpa_supplicant *wpa_s, u16 pw_id,
1454                            const struct wpabuf *pw, const u8 *pubkey_hash)
1455 {
1456         struct hostapd_data *hapd;
1457         struct wps_context *wps;
1458
1459         if (!wpa_s->ap_iface)
1460                 return -1;
1461         hapd = wpa_s->ap_iface->bss[0];
1462         wps = hapd->wps;
1463
1464         if (wpa_s->p2pdev->conf->wps_nfc_dh_pubkey == NULL ||
1465             wpa_s->p2pdev->conf->wps_nfc_dh_privkey == NULL) {
1466                 wpa_printf(MSG_DEBUG, "P2P: No NFC DH key known");
1467                 return -1;
1468         }
1469
1470         dh5_free(wps->dh_ctx);
1471         wpabuf_free(wps->dh_pubkey);
1472         wpabuf_free(wps->dh_privkey);
1473         wps->dh_privkey = wpabuf_dup(
1474                 wpa_s->p2pdev->conf->wps_nfc_dh_privkey);
1475         wps->dh_pubkey = wpabuf_dup(
1476                 wpa_s->p2pdev->conf->wps_nfc_dh_pubkey);
1477         if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
1478                 wps->dh_ctx = NULL;
1479                 wpabuf_free(wps->dh_pubkey);
1480                 wps->dh_pubkey = NULL;
1481                 wpabuf_free(wps->dh_privkey);
1482                 wps->dh_privkey = NULL;
1483                 return -1;
1484         }
1485         wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
1486         if (wps->dh_ctx == NULL)
1487                 return -1;
1488
1489         return wps_registrar_add_nfc_pw_token(hapd->wps->registrar, pubkey_hash,
1490                                               pw_id,
1491                                               pw ? wpabuf_head(pw) : NULL,
1492                                               pw ? wpabuf_len(pw) : 0, 1);
1493 }
1494 #endif /* CONFIG_WPS_NFC */
1495
1496
1497 #ifdef CONFIG_CTRL_IFACE
1498 int wpas_ap_stop_ap(struct wpa_supplicant *wpa_s)
1499 {
1500         struct hostapd_data *hapd;
1501
1502         if (!wpa_s->ap_iface)
1503                 return -1;
1504         hapd = wpa_s->ap_iface->bss[0];
1505         return hostapd_ctrl_iface_stop_ap(hapd);
1506 }
1507
1508
1509 int wpas_ap_pmksa_cache_list(struct wpa_supplicant *wpa_s, char *buf,
1510                              size_t len)
1511 {
1512         size_t reply_len = 0, i;
1513         char ap_delimiter[] = "---- AP ----\n";
1514         char mesh_delimiter[] = "---- mesh ----\n";
1515         size_t dlen;
1516
1517         if (wpa_s->ap_iface) {
1518                 dlen = os_strlen(ap_delimiter);
1519                 if (dlen > len - reply_len)
1520                         return reply_len;
1521                 os_memcpy(&buf[reply_len], ap_delimiter, dlen);
1522                 reply_len += dlen;
1523
1524                 for (i = 0; i < wpa_s->ap_iface->num_bss; i++) {
1525                         reply_len += hostapd_ctrl_iface_pmksa_list(
1526                                 wpa_s->ap_iface->bss[i],
1527                                 &buf[reply_len], len - reply_len);
1528                 }
1529         }
1530
1531         if (wpa_s->ifmsh) {
1532                 dlen = os_strlen(mesh_delimiter);
1533                 if (dlen > len - reply_len)
1534                         return reply_len;
1535                 os_memcpy(&buf[reply_len], mesh_delimiter, dlen);
1536                 reply_len += dlen;
1537
1538                 reply_len += hostapd_ctrl_iface_pmksa_list(
1539                         wpa_s->ifmsh->bss[0], &buf[reply_len],
1540                         len - reply_len);
1541         }
1542
1543         return reply_len;
1544 }
1545
1546
1547 void wpas_ap_pmksa_cache_flush(struct wpa_supplicant *wpa_s)
1548 {
1549         size_t i;
1550
1551         if (wpa_s->ap_iface) {
1552                 for (i = 0; i < wpa_s->ap_iface->num_bss; i++)
1553                         hostapd_ctrl_iface_pmksa_flush(wpa_s->ap_iface->bss[i]);
1554         }
1555
1556         if (wpa_s->ifmsh)
1557                 hostapd_ctrl_iface_pmksa_flush(wpa_s->ifmsh->bss[0]);
1558 }
1559
1560
1561 #ifdef CONFIG_PMKSA_CACHE_EXTERNAL
1562 #ifdef CONFIG_MESH
1563
1564 int wpas_ap_pmksa_cache_list_mesh(struct wpa_supplicant *wpa_s, const u8 *addr,
1565                                   char *buf, size_t len)
1566 {
1567         return hostapd_ctrl_iface_pmksa_list_mesh(wpa_s->ifmsh->bss[0], addr,
1568                                                   &buf[0], len);
1569 }
1570
1571
1572 int wpas_ap_pmksa_cache_add_external(struct wpa_supplicant *wpa_s, char *cmd)
1573 {
1574         struct external_pmksa_cache *entry;
1575         void *pmksa_cache;
1576
1577         pmksa_cache = hostapd_ctrl_iface_pmksa_create_entry(wpa_s->own_addr,
1578                                                             cmd);
1579         if (!pmksa_cache)
1580                 return -1;
1581
1582         entry = os_zalloc(sizeof(struct external_pmksa_cache));
1583         if (!entry)
1584                 return -1;
1585
1586         entry->pmksa_cache = pmksa_cache;
1587
1588         dl_list_add(&wpa_s->mesh_external_pmksa_cache, &entry->list);
1589
1590         return 0;
1591 }
1592
1593 #endif /* CONFIG_MESH */
1594 #endif /* CONFIG_PMKSA_CACHE_EXTERNAL */
1595
1596 #endif /* CONFIG_CTRL_IFACE */
1597
1598
1599 #ifdef NEED_AP_MLME
1600 void wpas_ap_event_dfs_radar_detected(struct wpa_supplicant *wpa_s,
1601                                       struct dfs_event *radar)
1602 {
1603         struct hostapd_iface *iface = wpa_s->ap_iface;
1604
1605         if (!iface)
1606                 iface = wpa_s->ifmsh;
1607         if (!iface || !iface->bss[0])
1608                 return;
1609         wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1610         hostapd_dfs_radar_detected(iface, radar->freq,
1611                                    radar->ht_enabled, radar->chan_offset,
1612                                    radar->chan_width,
1613                                    radar->cf1, radar->cf2);
1614 }
1615
1616
1617 void wpas_ap_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
1618                                    struct dfs_event *radar)
1619 {
1620         struct hostapd_iface *iface = wpa_s->ap_iface;
1621
1622         if (!iface)
1623                 iface = wpa_s->ifmsh;
1624         if (!iface || !iface->bss[0])
1625                 return;
1626         wpa_printf(MSG_DEBUG, "DFS CAC started on %d MHz", radar->freq);
1627         hostapd_dfs_start_cac(iface, radar->freq,
1628                               radar->ht_enabled, radar->chan_offset,
1629                               radar->chan_width, radar->cf1, radar->cf2);
1630 }
1631
1632
1633 void wpas_ap_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
1634                                     struct dfs_event *radar)
1635 {
1636         struct hostapd_iface *iface = wpa_s->ap_iface;
1637
1638         if (!iface)
1639                 iface = wpa_s->ifmsh;
1640         if (!iface || !iface->bss[0])
1641                 return;
1642         wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1643         hostapd_dfs_complete_cac(iface, 1, radar->freq,
1644                                  radar->ht_enabled, radar->chan_offset,
1645                                  radar->chan_width, radar->cf1, radar->cf2);
1646 }
1647
1648
1649 void wpas_ap_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
1650                                    struct dfs_event *radar)
1651 {
1652         struct hostapd_iface *iface = wpa_s->ap_iface;
1653
1654         if (!iface)
1655                 iface = wpa_s->ifmsh;
1656         if (!iface || !iface->bss[0])
1657                 return;
1658         wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1659         hostapd_dfs_complete_cac(iface, 0, radar->freq,
1660                                  radar->ht_enabled, radar->chan_offset,
1661                                  radar->chan_width, radar->cf1, radar->cf2);
1662 }
1663
1664
1665 void wpas_ap_event_dfs_cac_nop_finished(struct wpa_supplicant *wpa_s,
1666                                         struct dfs_event *radar)
1667 {
1668         struct hostapd_iface *iface = wpa_s->ap_iface;
1669
1670         if (!iface)
1671                 iface = wpa_s->ifmsh;
1672         if (!iface || !iface->bss[0])
1673                 return;
1674         wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1675         hostapd_dfs_nop_finished(iface, radar->freq,
1676                                  radar->ht_enabled, radar->chan_offset,
1677                                  radar->chan_width, radar->cf1, radar->cf2);
1678 }
1679 #endif /* NEED_AP_MLME */
1680
1681
1682 void ap_periodic(struct wpa_supplicant *wpa_s)
1683 {
1684         if (wpa_s->ap_iface)
1685                 hostapd_periodic_iface(wpa_s->ap_iface);
1686 }