2 * WPA Supplicant - Basic AP mode support routines
3 * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2009, Atheros Communications
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
10 #include "utils/includes.h"
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"
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"
31 #include "common/ieee802_11_defs.h"
32 #include "config_ssid.h"
34 #include "wpa_supplicant_i.h"
36 #include "p2p_supplicant.h"
38 #include "ap/sta_info.h"
43 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
44 #endif /* CONFIG_WPS */
47 #ifdef CONFIG_IEEE80211N
48 static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
49 struct hostapd_config *conf,
50 struct hostapd_hw_modes *mode)
54 u8 channel = conf->channel;
56 if (!conf->secondary_channel)
59 center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
63 /* Use 80 MHz channel */
64 conf->vht_oper_chwidth = 1;
65 conf->vht_oper_centr_freq_seg0_idx = center_chan;
69 conf->vht_oper_centr_freq_seg0_idx =
70 channel + conf->secondary_channel * 2;
71 #else /* CONFIG_P2P */
72 conf->vht_oper_centr_freq_seg0_idx =
73 conf->channel + conf->secondary_channel * 2;
74 #endif /* CONFIG_P2P */
76 #endif /* CONFIG_IEEE80211N */
79 void wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
80 struct wpa_ssid *ssid,
81 struct hostapd_config *conf)
83 /* TODO: enable HT40 if driver supports it;
84 * drop to 11b if driver does not support 11g */
86 #ifdef CONFIG_IEEE80211N
88 * Enable HT20 if the driver supports it, by setting conf->ieee80211n
89 * and a mask of allowed capabilities within conf->ht_capab.
90 * Using default config settings for: conf->ht_op_mode_fixed,
91 * conf->secondary_channel, conf->require_ht
93 if (wpa_s->hw.modes) {
94 struct hostapd_hw_modes *mode = NULL;
96 for (i = 0; i < wpa_s->hw.num_modes; i++) {
97 if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
98 mode = &wpa_s->hw.modes[i];
103 #ifdef CONFIG_HT_OVERRIDES
104 if (ssid->disable_ht) {
105 conf->ieee80211n = 0;
109 #endif /* CONFIG_HT_OVERRIDES */
111 if (!no_ht && mode && mode->ht_capab) {
112 conf->ieee80211n = 1;
114 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
116 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
118 conf->secondary_channel =
119 wpas_p2p_get_ht40_mode(wpa_s, mode,
121 if (conf->secondary_channel)
123 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
124 #endif /* CONFIG_P2P */
127 * white-list capabilities that won't cause issues
128 * to connecting stations, while leaving the current
129 * capabilities intact (currently disabled SMPS).
131 conf->ht_capab |= mode->ht_capab &
132 (HT_CAP_INFO_GREEN_FIELD |
133 HT_CAP_INFO_SHORT_GI20MHZ |
134 HT_CAP_INFO_SHORT_GI40MHZ |
135 HT_CAP_INFO_RX_STBC_MASK |
136 HT_CAP_INFO_TX_STBC |
137 HT_CAP_INFO_MAX_AMSDU_SIZE);
139 if (mode->vht_capab && ssid->vht) {
140 conf->ieee80211ac = 1;
141 wpas_conf_ap_vht(wpa_s, conf, mode);
145 #endif /* CONFIG_IEEE80211N */
149 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
150 struct wpa_ssid *ssid,
151 struct hostapd_config *conf)
153 struct hostapd_bss_config *bss = conf->bss[0];
155 conf->driver = wpa_s->driver;
157 os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
159 conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
161 if (conf->hw_mode == NUM_HOSTAPD_MODES) {
162 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
167 wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf);
169 if (ieee80211_is_dfs(ssid->frequency) && wpa_s->conf->country[0]) {
170 conf->ieee80211h = 1;
171 conf->ieee80211d = 1;
172 conf->country[0] = wpa_s->conf->country[0];
173 conf->country[1] = wpa_s->conf->country[1];
177 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
178 (ssid->mode == WPAS_MODE_P2P_GO ||
179 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
180 /* Remove 802.11b rates from supported and basic rate sets */
181 int *list = os_malloc(4 * sizeof(int));
188 conf->basic_rates = list;
190 list = os_malloc(9 * sizeof(int));
202 conf->supported_rates = list;
205 bss->isolate = !wpa_s->conf->p2p_intra_bss;
206 bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
208 if (ssid->p2p_group) {
209 os_memcpy(bss->ip_addr_go, wpa_s->parent->conf->ip_addr_go, 4);
210 os_memcpy(bss->ip_addr_mask, wpa_s->parent->conf->ip_addr_mask,
212 os_memcpy(bss->ip_addr_start,
213 wpa_s->parent->conf->ip_addr_start, 4);
214 os_memcpy(bss->ip_addr_end, wpa_s->parent->conf->ip_addr_end,
217 #endif /* CONFIG_P2P */
219 if (ssid->ssid_len == 0) {
220 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
223 os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
224 bss->ssid.ssid_len = ssid->ssid_len;
225 bss->ssid.ssid_set = 1;
227 bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
230 bss->auth_algs = ssid->auth_alg;
232 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
233 bss->wpa = ssid->proto;
234 bss->wpa_key_mgmt = ssid->key_mgmt;
235 bss->wpa_pairwise = ssid->pairwise_cipher;
237 bin_clear_free(bss->ssid.wpa_psk, sizeof(*bss->ssid.wpa_psk));
238 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
239 if (bss->ssid.wpa_psk == NULL)
241 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
242 bss->ssid.wpa_psk->group = 1;
243 } else if (ssid->passphrase) {
244 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
245 } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
246 ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
247 struct hostapd_wep_keys *wep = &bss->ssid.wep;
249 for (i = 0; i < NUM_WEP_KEYS; i++) {
250 if (ssid->wep_key_len[i] == 0)
252 wep->key[i] = os_malloc(ssid->wep_key_len[i]);
253 if (wep->key[i] == NULL)
255 os_memcpy(wep->key[i], ssid->wep_key[i],
256 ssid->wep_key_len[i]);
257 wep->len[i] = ssid->wep_key_len[i];
259 wep->idx = ssid->wep_tx_keyidx;
263 if (ssid->ap_max_inactivity)
264 bss->ap_max_inactivity = ssid->ap_max_inactivity;
266 if (ssid->dtim_period)
267 bss->dtim_period = ssid->dtim_period;
268 else if (wpa_s->conf->dtim_period)
269 bss->dtim_period = wpa_s->conf->dtim_period;
271 if (ssid->beacon_int)
272 conf->beacon_int = ssid->beacon_int;
273 else if (wpa_s->conf->beacon_int)
274 conf->beacon_int = wpa_s->conf->beacon_int;
277 if (wpa_s->conf->p2p_go_ctwindow > conf->beacon_int) {
279 "CTWindow (%d) is bigger than beacon interval (%d) - avoid configuring it",
280 wpa_s->conf->p2p_go_ctwindow, conf->beacon_int);
281 conf->p2p_go_ctwindow = 0;
283 conf->p2p_go_ctwindow = wpa_s->conf->p2p_go_ctwindow;
285 #endif /* CONFIG_P2P */
287 if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
288 bss->rsn_pairwise = bss->wpa_pairwise;
289 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
292 if (bss->wpa && bss->ieee802_1x)
293 bss->ssid.security_policy = SECURITY_WPA;
295 bss->ssid.security_policy = SECURITY_WPA_PSK;
296 else if (bss->ieee802_1x) {
297 int cipher = WPA_CIPHER_NONE;
298 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
299 bss->ssid.wep.default_len = bss->default_wep_key_len;
300 if (bss->default_wep_key_len)
301 cipher = bss->default_wep_key_len >= 13 ?
302 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
303 bss->wpa_group = cipher;
304 bss->wpa_pairwise = cipher;
305 bss->rsn_pairwise = cipher;
306 } else if (bss->ssid.wep.keys_set) {
307 int cipher = WPA_CIPHER_WEP40;
308 if (bss->ssid.wep.len[0] >= 13)
309 cipher = WPA_CIPHER_WEP104;
310 bss->ssid.security_policy = SECURITY_STATIC_WEP;
311 bss->wpa_group = cipher;
312 bss->wpa_pairwise = cipher;
313 bss->rsn_pairwise = cipher;
315 bss->ssid.security_policy = SECURITY_PLAINTEXT;
316 bss->wpa_group = WPA_CIPHER_NONE;
317 bss->wpa_pairwise = WPA_CIPHER_NONE;
318 bss->rsn_pairwise = WPA_CIPHER_NONE;
321 if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
322 (bss->wpa_group == WPA_CIPHER_CCMP ||
323 bss->wpa_group == WPA_CIPHER_GCMP ||
324 bss->wpa_group == WPA_CIPHER_CCMP_256 ||
325 bss->wpa_group == WPA_CIPHER_GCMP_256)) {
327 * Strong ciphers do not need frequent rekeying, so increase
328 * the default GTK rekeying period to 24 hours.
330 bss->wpa_group_rekey = 86400;
333 #ifdef CONFIG_IEEE80211W
334 if (ssid->ieee80211w != MGMT_FRAME_PROTECTION_DEFAULT)
335 bss->ieee80211w = ssid->ieee80211w;
336 #endif /* CONFIG_IEEE80211W */
340 * Enable WPS by default for open and WPA/WPA2-Personal network, but
341 * require user interaction to actually use it. Only the internal
342 * Registrar is supported.
344 if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
345 bss->ssid.security_policy != SECURITY_PLAINTEXT)
347 if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
348 (!(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) ||
350 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
354 if (!ssid->ignore_broadcast_ssid)
357 bss->ap_setup_locked = 2;
358 if (wpa_s->conf->config_methods)
359 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
360 os_memcpy(bss->device_type, wpa_s->conf->device_type,
362 if (wpa_s->conf->device_name) {
363 bss->device_name = os_strdup(wpa_s->conf->device_name);
364 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
366 if (wpa_s->conf->manufacturer)
367 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
368 if (wpa_s->conf->model_name)
369 bss->model_name = os_strdup(wpa_s->conf->model_name);
370 if (wpa_s->conf->model_number)
371 bss->model_number = os_strdup(wpa_s->conf->model_number);
372 if (wpa_s->conf->serial_number)
373 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
374 if (is_nil_uuid(wpa_s->conf->uuid))
375 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
377 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
378 os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
379 bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
381 #endif /* CONFIG_WPS */
383 if (wpa_s->max_stations &&
384 wpa_s->max_stations < wpa_s->conf->max_num_sta)
385 bss->max_num_sta = wpa_s->max_stations;
387 bss->max_num_sta = wpa_s->conf->max_num_sta;
389 bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
391 if (wpa_s->conf->ap_vendor_elements) {
392 bss->vendor_elements =
393 wpabuf_dup(wpa_s->conf->ap_vendor_elements);
400 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
403 struct wpa_supplicant *wpa_s = ctx;
404 const struct ieee80211_mgmt *mgmt;
406 mgmt = (const struct ieee80211_mgmt *) buf;
407 if (len < IEEE80211_HDRLEN + 1)
409 if (mgmt->u.action.category != WLAN_ACTION_PUBLIC)
411 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
412 mgmt->u.action.category,
413 buf + IEEE80211_HDRLEN + 1,
414 len - IEEE80211_HDRLEN - 1, freq);
415 #endif /* CONFIG_P2P */
419 static void ap_wps_event_cb(void *ctx, enum wps_event event,
420 union wps_event_data *data)
423 struct wpa_supplicant *wpa_s = ctx;
425 if (event == WPS_EV_FAIL) {
426 struct wps_event_fail *fail = &data->fail;
428 if (wpa_s->parent && wpa_s->parent != wpa_s &&
429 wpa_s == wpa_s->global->p2p_group_formation) {
431 * src/ap/wps_hostapd.c has already sent this on the
432 * main interface, so only send on the parent interface
435 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
436 "msg=%d config_error=%d",
437 fail->msg, fail->config_error);
439 wpas_p2p_wps_failed(wpa_s, fail);
441 #endif /* CONFIG_P2P */
445 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
446 int authorized, const u8 *p2p_dev_addr)
448 wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
453 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
454 const u8 *psk, size_t psk_len)
457 struct wpa_supplicant *wpa_s = ctx;
458 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
460 wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
462 #endif /* CONFIG_P2P */
465 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
468 struct wpa_supplicant *wpa_s = ctx;
469 const struct ieee80211_mgmt *mgmt;
471 mgmt = (const struct ieee80211_mgmt *) buf;
472 if (len < IEEE80211_HDRLEN + 1)
474 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
475 mgmt->u.action.category,
476 buf + IEEE80211_HDRLEN + 1,
477 len - IEEE80211_HDRLEN - 1, freq);
478 #endif /* CONFIG_P2P */
483 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
484 const u8 *bssid, const u8 *ie, size_t ie_len,
487 struct wpa_supplicant *wpa_s = ctx;
488 return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
493 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
496 struct wpa_supplicant *wpa_s = ctx;
497 wpas_p2p_wps_success(wpa_s, mac_addr, 1);
501 static void wpas_ap_configured_cb(void *ctx)
503 struct wpa_supplicant *wpa_s = ctx;
505 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
507 if (wpa_s->ap_configured_cb)
508 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
509 wpa_s->ap_configured_cb_data);
513 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
514 struct wpa_ssid *ssid)
516 struct wpa_driver_associate_params params;
517 struct hostapd_iface *hapd_iface;
518 struct hostapd_config *conf;
521 if (ssid->ssid == NULL || ssid->ssid_len == 0) {
522 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
526 wpa_supplicant_ap_deinit(wpa_s);
528 wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
529 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
531 os_memset(¶ms, 0, sizeof(params));
532 params.ssid = ssid->ssid;
533 params.ssid_len = ssid->ssid_len;
534 switch (ssid->mode) {
536 case WPAS_MODE_P2P_GO:
537 case WPAS_MODE_P2P_GROUP_FORMATION:
538 params.mode = IEEE80211_MODE_AP;
543 if (ssid->frequency == 0)
544 ssid->frequency = 2462; /* default channel 11 */
545 params.freq.freq = ssid->frequency;
547 params.wpa_proto = ssid->proto;
548 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
549 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
551 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
552 params.key_mgmt_suite = wpa_s->key_mgmt;
554 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
556 if (wpa_s->pairwise_cipher < 0) {
557 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
561 params.pairwise_suite = wpa_s->pairwise_cipher;
562 params.group_suite = params.pairwise_suite;
565 if (ssid->mode == WPAS_MODE_P2P_GO ||
566 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
568 #endif /* CONFIG_P2P */
570 if (wpa_s->parent->set_ap_uapsd)
571 params.uapsd = wpa_s->parent->ap_uapsd;
572 else if (params.p2p && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
573 params.uapsd = 1; /* mandatory for P2P GO */
577 if (ieee80211_is_dfs(params.freq.freq))
578 params.freq.freq = 0; /* set channel after CAC */
580 if (wpa_drv_associate(wpa_s, ¶ms) < 0) {
581 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
585 wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
586 if (hapd_iface == NULL)
588 hapd_iface->owner = wpa_s;
589 hapd_iface->drv_flags = wpa_s->drv_flags;
590 hapd_iface->smps_modes = wpa_s->drv_smps_modes;
591 hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
592 hapd_iface->extended_capa = wpa_s->extended_capa;
593 hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
594 hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
596 wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
598 wpa_supplicant_ap_deinit(wpa_s);
602 os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
603 wpa_s->conf->wmm_ac_params,
604 sizeof(wpa_s->conf->wmm_ac_params));
606 if (params.uapsd > 0) {
607 conf->bss[0]->wmm_enabled = 1;
608 conf->bss[0]->wmm_uapsd = 1;
611 if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
612 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
613 wpa_supplicant_ap_deinit(wpa_s);
618 if (ssid->mode == WPAS_MODE_P2P_GO)
619 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
620 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
621 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
623 #endif /* CONFIG_P2P */
625 hapd_iface->num_bss = conf->num_bss;
626 hapd_iface->bss = os_calloc(conf->num_bss,
627 sizeof(struct hostapd_data *));
628 if (hapd_iface->bss == NULL) {
629 wpa_supplicant_ap_deinit(wpa_s);
633 for (i = 0; i < conf->num_bss; i++) {
635 hostapd_alloc_bss_data(hapd_iface, conf,
637 if (hapd_iface->bss[i] == NULL) {
638 wpa_supplicant_ap_deinit(wpa_s);
642 hapd_iface->bss[i]->msg_ctx = wpa_s;
643 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
644 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
645 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
646 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
647 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
648 hostapd_register_probereq_cb(hapd_iface->bss[i],
649 ap_probe_req_rx, wpa_s);
650 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
651 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
652 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
653 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
654 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
655 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
657 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
658 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
659 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
660 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
662 #endif /* CONFIG_P2P */
663 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
664 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
665 #ifdef CONFIG_TESTING_OPTIONS
666 hapd_iface->bss[i]->ext_eapol_frame_io =
667 wpa_s->ext_eapol_frame_io;
668 #endif /* CONFIG_TESTING_OPTIONS */
671 os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
672 hapd_iface->bss[0]->driver = wpa_s->driver;
673 hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
675 wpa_s->current_ssid = ssid;
676 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
677 os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
678 wpa_s->assoc_freq = ssid->frequency;
680 if (hostapd_setup_interface(wpa_s->ap_iface)) {
681 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
682 wpa_supplicant_ap_deinit(wpa_s);
690 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
693 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
694 #endif /* CONFIG_WPS */
696 if (wpa_s->ap_iface == NULL)
699 wpa_s->current_ssid = NULL;
700 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
701 wpa_s->assoc_freq = 0;
702 wpas_p2p_ap_deinit(wpa_s);
703 wpa_s->ap_iface->driver_ap_teardown =
704 !!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
706 hostapd_interface_deinit(wpa_s->ap_iface);
707 hostapd_interface_free(wpa_s->ap_iface);
708 wpa_s->ap_iface = NULL;
709 wpa_drv_deinit_ap(wpa_s);
710 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
711 " reason=%d locally_generated=1",
712 MAC2STR(wpa_s->own_addr), WLAN_REASON_DEAUTH_LEAVING);
716 void ap_tx_status(void *ctx, const u8 *addr,
717 const u8 *buf, size_t len, int ack)
720 struct wpa_supplicant *wpa_s = ctx;
721 hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
722 #endif /* NEED_AP_MLME */
726 void ap_eapol_tx_status(void *ctx, const u8 *dst,
727 const u8 *data, size_t len, int ack)
730 struct wpa_supplicant *wpa_s = ctx;
731 if (!wpa_s->ap_iface)
733 hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
734 #endif /* NEED_AP_MLME */
738 void ap_client_poll_ok(void *ctx, const u8 *addr)
741 struct wpa_supplicant *wpa_s = ctx;
743 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
744 #endif /* NEED_AP_MLME */
748 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
751 struct wpa_supplicant *wpa_s = ctx;
752 ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
753 #endif /* NEED_AP_MLME */
757 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
760 struct wpa_supplicant *wpa_s = ctx;
761 struct hostapd_frame_info fi;
762 os_memset(&fi, 0, sizeof(fi));
763 fi.datarate = rx_mgmt->datarate;
764 fi.ssi_signal = rx_mgmt->ssi_signal;
765 ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
766 rx_mgmt->frame_len, &fi);
767 #endif /* NEED_AP_MLME */
771 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
774 struct wpa_supplicant *wpa_s = ctx;
775 ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
776 #endif /* NEED_AP_MLME */
780 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
781 const u8 *src_addr, const u8 *buf, size_t len)
783 ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
789 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
790 const u8 *p2p_dev_addr)
792 if (!wpa_s->ap_iface)
794 return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
799 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
801 struct wps_registrar *reg;
802 int reg_sel = 0, wps_sta = 0;
804 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
807 reg = wpa_s->ap_iface->bss[0]->wps->registrar;
808 reg_sel = wps_registrar_wps_cancel(reg);
809 wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
810 ap_sta_wps_cancel, NULL);
812 if (!reg_sel && !wps_sta) {
813 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
819 * There are 2 cases to return wps cancel as success:
820 * 1. When wps cancel was initiated but no connection has been
821 * established with client yet.
822 * 2. Client is in the middle of exchanging WPS messages.
829 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
830 const char *pin, char *buf, size_t buflen,
833 int ret, ret_len = 0;
835 if (!wpa_s->ap_iface)
839 unsigned int rpin = wps_generate_pin();
840 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
841 if (os_snprintf_error(buflen, ret_len))
845 ret_len = os_snprintf(buf, buflen, "%s", pin);
846 if (os_snprintf_error(buflen, ret_len))
850 ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
858 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
860 struct wpa_supplicant *wpa_s = eloop_data;
861 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
862 wpas_wps_ap_pin_disable(wpa_s);
866 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
868 struct hostapd_data *hapd;
870 if (wpa_s->ap_iface == NULL)
872 hapd = wpa_s->ap_iface->bss[0];
873 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
874 hapd->ap_pin_failures = 0;
875 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
877 eloop_register_timeout(timeout, 0,
878 wpas_wps_ap_pin_timeout, wpa_s, NULL);
882 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
884 struct hostapd_data *hapd;
886 if (wpa_s->ap_iface == NULL)
888 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
889 hapd = wpa_s->ap_iface->bss[0];
890 os_free(hapd->conf->ap_pin);
891 hapd->conf->ap_pin = NULL;
892 eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
896 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
898 struct hostapd_data *hapd;
902 if (wpa_s->ap_iface == NULL)
904 hapd = wpa_s->ap_iface->bss[0];
905 pin = wps_generate_pin();
906 os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
907 os_free(hapd->conf->ap_pin);
908 hapd->conf->ap_pin = os_strdup(pin_txt);
909 if (hapd->conf->ap_pin == NULL)
911 wpas_wps_ap_pin_enable(wpa_s, timeout);
913 return hapd->conf->ap_pin;
917 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
919 struct hostapd_data *hapd;
920 if (wpa_s->ap_iface == NULL)
922 hapd = wpa_s->ap_iface->bss[0];
923 return hapd->conf->ap_pin;
927 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
930 struct hostapd_data *hapd;
934 if (wpa_s->ap_iface == NULL)
936 hapd = wpa_s->ap_iface->bss[0];
937 ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
938 if (os_snprintf_error(sizeof(pin_txt), ret))
940 os_free(hapd->conf->ap_pin);
941 hapd->conf->ap_pin = os_strdup(pin_txt);
942 if (hapd->conf->ap_pin == NULL)
944 wpas_wps_ap_pin_enable(wpa_s, timeout);
950 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
952 struct hostapd_data *hapd;
954 if (wpa_s->ap_iface == NULL)
956 hapd = wpa_s->ap_iface->bss[0];
959 * Registrar failed to prove its knowledge of the AP PIN. Disable AP
960 * PIN if this happens multiple times to slow down brute force attacks.
962 hapd->ap_pin_failures++;
963 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
964 hapd->ap_pin_failures);
965 if (hapd->ap_pin_failures < 3)
968 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
969 hapd->ap_pin_failures = 0;
970 os_free(hapd->conf->ap_pin);
971 hapd->conf->ap_pin = NULL;
975 #ifdef CONFIG_WPS_NFC
977 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
980 struct hostapd_data *hapd;
982 if (wpa_s->ap_iface == NULL)
984 hapd = wpa_s->ap_iface->bss[0];
985 return hostapd_wps_nfc_config_token(hapd, ndef);
989 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
992 struct hostapd_data *hapd;
994 if (wpa_s->ap_iface == NULL)
996 hapd = wpa_s->ap_iface->bss[0];
997 return hostapd_wps_nfc_hs_cr(hapd, ndef);
1001 int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
1002 const struct wpabuf *req,
1003 const struct wpabuf *sel)
1005 struct hostapd_data *hapd;
1007 if (wpa_s->ap_iface == NULL)
1009 hapd = wpa_s->ap_iface->bss[0];
1010 return hostapd_wps_nfc_report_handover(hapd, req, sel);
1013 #endif /* CONFIG_WPS_NFC */
1015 #endif /* CONFIG_WPS */
1018 #ifdef CONFIG_CTRL_IFACE
1020 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
1021 char *buf, size_t buflen)
1023 struct hostapd_data *hapd;
1025 if (wpa_s->ap_iface)
1026 hapd = wpa_s->ap_iface->bss[0];
1027 else if (wpa_s->ifmsh)
1028 hapd = wpa_s->ifmsh->bss[0];
1031 return hostapd_ctrl_iface_sta_first(hapd, buf, buflen);
1035 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
1036 char *buf, size_t buflen)
1038 struct hostapd_data *hapd;
1040 if (wpa_s->ap_iface)
1041 hapd = wpa_s->ap_iface->bss[0];
1042 else if (wpa_s->ifmsh)
1043 hapd = wpa_s->ifmsh->bss[0];
1046 return hostapd_ctrl_iface_sta(hapd, txtaddr, buf, buflen);
1050 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
1051 char *buf, size_t buflen)
1053 struct hostapd_data *hapd;
1055 if (wpa_s->ap_iface)
1056 hapd = wpa_s->ap_iface->bss[0];
1057 else if (wpa_s->ifmsh)
1058 hapd = wpa_s->ifmsh->bss[0];
1061 return hostapd_ctrl_iface_sta_next(hapd, txtaddr, buf, buflen);
1065 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
1066 const char *txtaddr)
1068 if (wpa_s->ap_iface == NULL)
1070 return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
1075 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
1076 const char *txtaddr)
1078 if (wpa_s->ap_iface == NULL)
1080 return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
1085 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
1086 size_t buflen, int verbose)
1088 char *pos = buf, *end = buf + buflen;
1090 struct hostapd_bss_config *conf;
1092 if (wpa_s->ap_iface == NULL)
1095 conf = wpa_s->ap_iface->bss[0]->conf;
1099 ret = os_snprintf(pos, end - pos,
1100 "pairwise_cipher=%s\n"
1103 wpa_cipher_txt(conf->rsn_pairwise),
1104 wpa_cipher_txt(conf->wpa_group),
1105 wpa_key_mgmt_txt(conf->wpa_key_mgmt,
1107 if (os_snprintf_error(end - pos, ret))
1113 #endif /* CONFIG_CTRL_IFACE */
1116 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1118 struct hostapd_iface *iface = wpa_s->ap_iface;
1119 struct wpa_ssid *ssid = wpa_s->current_ssid;
1120 struct hostapd_data *hapd;
1122 if (ssid == NULL || wpa_s->ap_iface == NULL ||
1123 ssid->mode == WPAS_MODE_INFRA ||
1124 ssid->mode == WPAS_MODE_IBSS)
1128 if (ssid->mode == WPAS_MODE_P2P_GO)
1129 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1130 else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1131 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1132 P2P_GROUP_FORMATION;
1133 #endif /* CONFIG_P2P */
1135 hapd = iface->bss[0];
1136 if (hapd->drv_priv == NULL)
1138 ieee802_11_set_beacons(iface);
1139 hostapd_set_ap_wps_ie(hapd);
1145 int ap_switch_channel(struct wpa_supplicant *wpa_s,
1146 struct csa_settings *settings)
1149 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1152 return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings);
1153 #else /* NEED_AP_MLME */
1155 #endif /* NEED_AP_MLME */
1159 int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos)
1161 struct csa_settings settings;
1162 int ret = hostapd_parse_csa_settings(pos, &settings);
1167 return ap_switch_channel(wpa_s, &settings);
1171 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1172 int offset, int width, int cf1, int cf2)
1174 if (!wpa_s->ap_iface)
1177 wpa_s->assoc_freq = freq;
1178 hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset, width, cf1, cf1);
1182 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1185 struct hostapd_data *hapd;
1186 struct hostapd_bss_config *conf;
1188 if (!wpa_s->ap_iface)
1192 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1195 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1197 hapd = wpa_s->ap_iface->bss[0];
1200 os_free(conf->accept_mac);
1201 conf->accept_mac = NULL;
1202 conf->num_accept_mac = 0;
1203 os_free(conf->deny_mac);
1204 conf->deny_mac = NULL;
1205 conf->num_deny_mac = 0;
1208 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1212 conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1213 conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1214 if (conf->accept_mac == NULL)
1216 os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1217 conf->num_accept_mac = 1;
1223 #ifdef CONFIG_WPS_NFC
1224 int wpas_ap_wps_add_nfc_pw(struct wpa_supplicant *wpa_s, u16 pw_id,
1225 const struct wpabuf *pw, const u8 *pubkey_hash)
1227 struct hostapd_data *hapd;
1228 struct wps_context *wps;
1230 if (!wpa_s->ap_iface)
1232 hapd = wpa_s->ap_iface->bss[0];
1235 if (wpa_s->parent->conf->wps_nfc_dh_pubkey == NULL ||
1236 wpa_s->parent->conf->wps_nfc_dh_privkey == NULL) {
1237 wpa_printf(MSG_DEBUG, "P2P: No NFC DH key known");
1241 dh5_free(wps->dh_ctx);
1242 wpabuf_free(wps->dh_pubkey);
1243 wpabuf_free(wps->dh_privkey);
1244 wps->dh_privkey = wpabuf_dup(
1245 wpa_s->parent->conf->wps_nfc_dh_privkey);
1246 wps->dh_pubkey = wpabuf_dup(
1247 wpa_s->parent->conf->wps_nfc_dh_pubkey);
1248 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
1250 wpabuf_free(wps->dh_pubkey);
1251 wps->dh_pubkey = NULL;
1252 wpabuf_free(wps->dh_privkey);
1253 wps->dh_privkey = NULL;
1256 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
1257 if (wps->dh_ctx == NULL)
1260 return wps_registrar_add_nfc_pw_token(hapd->wps->registrar, pubkey_hash,
1262 pw ? wpabuf_head(pw) : NULL,
1263 pw ? wpabuf_len(pw) : 0, 1);
1265 #endif /* CONFIG_WPS_NFC */
1268 int wpas_ap_stop_ap(struct wpa_supplicant *wpa_s)
1270 struct hostapd_data *hapd;
1272 if (!wpa_s->ap_iface)
1274 hapd = wpa_s->ap_iface->bss[0];
1275 return hostapd_ctrl_iface_stop_ap(hapd);
1280 void wpas_event_dfs_radar_detected(struct wpa_supplicant *wpa_s,
1281 struct dfs_event *radar)
1283 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1285 wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1286 hostapd_dfs_radar_detected(wpa_s->ap_iface, radar->freq,
1287 radar->ht_enabled, radar->chan_offset,
1289 radar->cf1, radar->cf2);
1293 void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
1294 struct dfs_event *radar)
1296 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1298 wpa_printf(MSG_DEBUG, "DFS CAC started on %d MHz", radar->freq);
1299 hostapd_dfs_start_cac(wpa_s->ap_iface, radar->freq,
1300 radar->ht_enabled, radar->chan_offset,
1301 radar->chan_width, radar->cf1, radar->cf2);
1305 void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
1306 struct dfs_event *radar)
1308 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1310 wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1311 hostapd_dfs_complete_cac(wpa_s->ap_iface, 1, radar->freq,
1312 radar->ht_enabled, radar->chan_offset,
1313 radar->chan_width, radar->cf1, radar->cf2);
1317 void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
1318 struct dfs_event *radar)
1320 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1322 wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1323 hostapd_dfs_complete_cac(wpa_s->ap_iface, 0, radar->freq,
1324 radar->ht_enabled, radar->chan_offset,
1325 radar->chan_width, radar->cf1, radar->cf2);
1329 void wpas_event_dfs_cac_nop_finished(struct wpa_supplicant *wpa_s,
1330 struct dfs_event *radar)
1332 if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1334 wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1335 hostapd_dfs_nop_finished(wpa_s->ap_iface, radar->freq,
1336 radar->ht_enabled, radar->chan_offset,
1337 radar->chan_width, radar->cf1, radar->cf2);
1339 #endif /* NEED_AP_MLME */