2 * hostapd / Initialization and configuration
3 * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
19 #include "ieee802_1x.h"
21 #include "hw_features.h"
22 #include "accounting.h"
25 #include "ieee802_11_defs.h"
26 #include "ieee802_11_auth.h"
30 #include "radius/radius_client.h"
31 #include "radius/radius_server.h"
34 #include "vlan_init.h"
35 #include "ctrl_iface.h"
37 #include "eap_server/eap_sim_db.h"
38 #include "eap_server/eap.h"
39 #include "eap_server/tncs.h"
41 #include "l2_packet/l2_packet.h"
42 #include "wps_hostapd.h"
43 #include "tkip_countermeasures.h"
46 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
47 size_t identity_len, int phase2,
48 struct eap_user *user);
49 static int hostapd_flush_old_stations(struct hostapd_data *hapd);
50 static int hostapd_setup_wpa(struct hostapd_data *hapd);
51 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd);
53 extern int wpa_debug_level;
57 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
58 struct sta_info *sta, void *ctx)
60 if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
66 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
68 struct hostapd_data *hapd = ctx;
69 if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0)
70 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
72 #endif /* EAP_SERVER */
75 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
76 struct wpa_auth_config *wconf)
78 wconf->wpa = conf->wpa;
79 wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
80 wconf->wpa_pairwise = conf->wpa_pairwise;
81 wconf->wpa_group = conf->wpa_group;
82 wconf->wpa_group_rekey = conf->wpa_group_rekey;
83 wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
84 wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
85 wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
86 wconf->rsn_pairwise = conf->rsn_pairwise;
87 wconf->rsn_preauth = conf->rsn_preauth;
88 wconf->eapol_version = conf->eapol_version;
89 wconf->peerkey = conf->peerkey;
90 wconf->wmm_enabled = conf->wmm_enabled;
91 wconf->okc = conf->okc;
92 #ifdef CONFIG_IEEE80211W
93 wconf->ieee80211w = conf->ieee80211w;
94 #endif /* CONFIG_IEEE80211W */
95 #ifdef CONFIG_IEEE80211R
96 wconf->ssid_len = conf->ssid.ssid_len;
97 if (wconf->ssid_len > SSID_LEN)
98 wconf->ssid_len = SSID_LEN;
99 os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
100 os_memcpy(wconf->mobility_domain, conf->mobility_domain,
101 MOBILITY_DOMAIN_ID_LEN);
102 if (conf->nas_identifier &&
103 os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
104 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
105 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
106 wconf->r0_key_holder_len);
108 os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
109 wconf->r0_key_lifetime = conf->r0_key_lifetime;
110 wconf->reassociation_deadline = conf->reassociation_deadline;
111 wconf->r0kh_list = conf->r0kh_list;
112 wconf->r1kh_list = conf->r1kh_list;
113 wconf->pmk_r1_push = conf->pmk_r1_push;
114 #endif /* CONFIG_IEEE80211R */
118 int hostapd_reload_config(struct hostapd_iface *iface)
120 struct hostapd_data *hapd = iface->bss[0];
121 struct hostapd_config *newconf, *oldconf;
122 struct wpa_auth_config wpa_auth_conf;
125 newconf = hostapd_config_read(iface->config_fname);
130 * Deauthenticate all stations since the new configuration may not
131 * allow them to use the BSS anymore.
133 for (j = 0; j < iface->num_bss; j++)
134 hostapd_flush_old_stations(iface->bss[j]);
136 /* TODO: update dynamic data based on changed configuration
137 * items (e.g., open/close sockets, etc.) */
138 radius_client_flush(hapd->radius, 0);
140 oldconf = hapd->iconf;
141 hapd->iconf = newconf;
142 hapd->conf = &newconf->bss[0];
143 iface->conf = newconf;
145 if (hostapd_setup_wpa_psk(hapd->conf)) {
146 wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
147 "after reloading configuration");
150 if (hapd->conf->wpa && hapd->wpa_auth == NULL)
151 hostapd_setup_wpa(hapd);
152 else if (hapd->conf->wpa) {
153 hostapd_wpa_auth_conf(&newconf->bss[0], &wpa_auth_conf);
154 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
155 } else if (hapd->wpa_auth) {
156 wpa_deinit(hapd->wpa_auth);
157 hapd->wpa_auth = NULL;
158 hostapd_set_privacy(hapd, 0);
159 hostapd_setup_encryption(hapd->conf->iface, hapd);
162 ieee802_11_set_beacon(hapd);
164 if (hapd->conf->ssid.ssid_set &&
165 hostapd_set_ssid(hapd, (u8 *) hapd->conf->ssid.ssid,
166 hapd->conf->ssid.ssid_len)) {
167 wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
168 /* try to continue */
171 if (hapd->conf->ieee802_1x || hapd->conf->wpa)
172 hostapd_set_ieee8021x(hapd->conf->iface, hapd, 1);
174 hostapd_config_free(oldconf);
176 wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
182 int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
184 if (hostapd_reload_config(iface) < 0) {
185 wpa_printf(MSG_WARNING, "Failed to read new configuration "
186 "file - continuing with old.");
192 #ifdef HOSTAPD_DUMP_STATE
194 * hostapd_dump_state - SIGUSR1 handler to dump hostapd state to a text file
196 static void hostapd_dump_state(struct hostapd_data *hapd)
200 struct sta_info *sta;
204 if (!hapd->conf->dump_log_name) {
205 wpa_printf(MSG_DEBUG, "Dump file not defined - ignoring dump "
210 wpa_printf(MSG_DEBUG, "Dumping hostapd state to '%s'",
211 hapd->conf->dump_log_name);
212 f = fopen(hapd->conf->dump_log_name, "w");
214 wpa_printf(MSG_WARNING, "Could not open dump file '%s' for "
215 "writing.", hapd->conf->dump_log_name);
220 fprintf(f, "hostapd state dump - %s", ctime(&now));
221 fprintf(f, "num_sta=%d num_sta_non_erp=%d "
222 "num_sta_no_short_slot_time=%d\n"
223 "num_sta_no_short_preamble=%d\n",
224 hapd->num_sta, hapd->iface->num_sta_non_erp,
225 hapd->iface->num_sta_no_short_slot_time,
226 hapd->iface->num_sta_no_short_preamble);
228 for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
229 fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
232 " AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
233 " capability=0x%x listen_interval=%d\n",
236 (sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
237 (sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
238 (sta->flags & WLAN_STA_PS ? "[PS]" : ""),
239 (sta->flags & WLAN_STA_TIM ? "[TIM]" : ""),
240 (sta->flags & WLAN_STA_PERM ? "[PERM]" : ""),
241 (sta->flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" :
243 (sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
245 (sta->flags & WLAN_STA_SHORT_PREAMBLE ?
246 "[SHORT_PREAMBLE]" : ""),
247 (sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
248 (sta->flags & WLAN_STA_WMM ? "[WMM]" : ""),
249 (sta->flags & WLAN_STA_MFP ? "[MFP]" : ""),
250 (sta->flags & WLAN_STA_WPS ? "[WPS]" : ""),
251 (sta->flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
252 (sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
254 sta->listen_interval);
256 fprintf(f, " supported_rates=");
257 for (i = 0; i < sta->supported_rates_len; i++)
258 fprintf(f, "%02x ", sta->supported_rates[i]);
262 " timeout_next=%s\n",
263 (sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" :
264 (sta->timeout_next == STA_DISASSOC ? "DISASSOC" :
267 ieee802_1x_dump_state(f, " ", sta);
270 buf = os_malloc(4096);
272 int count = radius_client_get_mib(hapd->radius, buf, 4096);
275 else if (count > 4095)
278 fprintf(f, "%s", buf);
280 count = radius_server_get_mib(hapd->radius_srv, buf, 4096);
283 else if (count > 4095)
286 fprintf(f, "%s", buf);
293 int handle_dump_state_iface(struct hostapd_iface *iface, void *ctx)
297 for (i = 0; i < iface->num_bss; i++)
298 hostapd_dump_state(iface->bss[i]);
302 #endif /* HOSTAPD_DUMP_STATE */
305 static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
310 for (i = 0; i < NUM_WEP_KEYS; i++) {
311 if (hostapd_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,
312 i == 0 ? 1 : 0, NULL, 0, NULL, 0)) {
313 wpa_printf(MSG_DEBUG, "Failed to clear default "
314 "encryption keys (ifname=%s keyidx=%d)",
318 #ifdef CONFIG_IEEE80211W
319 if (hapd->conf->ieee80211w) {
320 for (i = NUM_WEP_KEYS; i < NUM_WEP_KEYS + 2; i++) {
321 if (hostapd_set_key(ifname, hapd, WPA_ALG_NONE, NULL,
322 i, i == 0 ? 1 : 0, NULL, 0,
324 wpa_printf(MSG_DEBUG, "Failed to clear "
325 "default mgmt encryption keys "
326 "(ifname=%s keyidx=%d)", ifname, i);
330 #endif /* CONFIG_IEEE80211W */
334 static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
336 hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
341 static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
344 struct hostapd_ssid *ssid = &hapd->conf->ssid;
347 if (ssid->wep.default_len &&
348 hostapd_set_key(hapd->conf->iface,
349 hapd, WPA_ALG_WEP, NULL, idx, idx == ssid->wep.idx,
350 NULL, 0, ssid->wep.key[idx], ssid->wep.len[idx])) {
351 wpa_printf(MSG_WARNING, "Could not set WEP encryption.");
355 if (ssid->dyn_vlan_keys) {
357 for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
359 struct hostapd_wep_keys *key = ssid->dyn_vlan_keys[i];
362 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan,
368 if (hostapd_set_key(ifname, hapd, WPA_ALG_WEP, NULL,
369 idx, idx == key->idx, NULL, 0,
370 key->key[idx], key->len[idx])) {
371 wpa_printf(MSG_WARNING, "Could not set "
372 "dynamic VLAN WEP encryption.");
382 * hostapd_cleanup - Per-BSS cleanup (deinitialization)
383 * @hapd: Pointer to BSS data
385 * This function is used to free all per-BSS data structures and resources.
386 * This gets called in a loop for each BSS between calls to
387 * hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
388 * is deinitialized. Most of the modules that are initialized in
389 * hostapd_setup_bss() are deinitialized here.
391 static void hostapd_cleanup(struct hostapd_data *hapd)
393 hostapd_ctrl_iface_deinit(hapd);
395 iapp_deinit(hapd->iapp);
397 accounting_deinit(hapd);
398 rsn_preauth_iface_deinit(hapd);
399 if (hapd->wpa_auth) {
400 wpa_deinit(hapd->wpa_auth);
401 hapd->wpa_auth = NULL;
403 if (hostapd_set_privacy(hapd, 0)) {
404 wpa_printf(MSG_DEBUG, "Could not disable "
405 "PrivacyInvoked for interface %s",
409 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
410 wpa_printf(MSG_DEBUG, "Could not remove generic "
411 "information element from interface %s",
415 ieee802_1x_deinit(hapd);
417 hostapd_acl_deinit(hapd);
418 radius_client_deinit(hapd->radius);
420 radius_server_deinit(hapd->radius_srv);
421 hapd->radius_srv = NULL;
423 #ifdef CONFIG_IEEE80211R
424 l2_packet_deinit(hapd->l2);
425 #endif /* CONFIG_IEEE80211R */
427 hostapd_deinit_wps(hapd);
431 tls_deinit(hapd->ssl_ctx);
432 hapd->ssl_ctx = NULL;
434 #endif /* EAP_TLS_FUNCS */
437 if (hapd->eap_sim_db_priv) {
438 eap_sim_db_deinit(hapd->eap_sim_db_priv);
439 hapd->eap_sim_db_priv = NULL;
441 #endif /* EAP_SERVER */
443 if (hapd->interface_added &&
444 hostapd_bss_remove(hapd, hapd->conf->iface)) {
445 wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s",
449 os_free(hapd->probereq_cb);
450 hapd->probereq_cb = NULL;
455 * hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
456 * @iface: Pointer to interface data
458 * This function is called before per-BSS data structures are deinitialized
459 * with hostapd_cleanup().
461 static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
467 * hostapd_cleanup_iface - Complete per-interface cleanup
468 * @iface: Pointer to interface data
470 * This function is called after per-BSS data structures are deinitialized
471 * with hostapd_cleanup().
473 static void hostapd_cleanup_iface(struct hostapd_iface *iface)
475 hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
476 iface->hw_features = NULL;
477 os_free(iface->current_rates);
478 iface->current_rates = NULL;
479 ap_list_deinit(iface);
480 hostapd_config_free(iface->conf);
483 os_free(iface->config_fname);
489 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
493 hostapd_broadcast_wep_set(hapd);
495 if (hapd->conf->ssid.wep.default_len)
498 for (i = 0; i < 4; i++) {
499 if (hapd->conf->ssid.wep.key[i] &&
500 hostapd_set_key(iface, hapd, WPA_ALG_WEP, NULL, i,
501 i == hapd->conf->ssid.wep.idx, NULL, 0,
502 hapd->conf->ssid.wep.key[i],
503 hapd->conf->ssid.wep.len[i])) {
504 wpa_printf(MSG_WARNING, "Could not set WEP "
508 if (hapd->conf->ssid.wep.key[i] &&
509 i == hapd->conf->ssid.wep.idx)
510 hostapd_set_privacy(hapd, 1);
517 static int hostapd_flush_old_stations(struct hostapd_data *hapd)
521 if (hostapd_drv_none(hapd))
524 wpa_printf(MSG_DEBUG, "Flushing old station entries");
525 if (hostapd_flush(hapd)) {
526 wpa_printf(MSG_WARNING, "Could not connect to kernel driver.");
529 wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
531 /* New Prism2.5/3 STA firmware versions seem to have issues with this
532 * broadcast deauth frame. This gets the firmware in odd state where
533 * nothing works correctly, so let's skip sending this for the hostap
535 if (hapd->driver && os_strcmp(hapd->driver->name, "hostap") != 0) {
537 os_memset(addr, 0xff, ETH_ALEN);
538 hostapd_sta_deauth(hapd, addr,
539 WLAN_REASON_PREV_AUTH_NOT_VALID);
546 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
547 logger_level level, const char *txt)
549 #ifndef CONFIG_NO_HOSTAPD_LOGGER
550 struct hostapd_data *hapd = ctx;
555 hlevel = HOSTAPD_LEVEL_WARNING;
558 hlevel = HOSTAPD_LEVEL_INFO;
562 hlevel = HOSTAPD_LEVEL_DEBUG;
566 hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
567 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
571 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
574 struct hostapd_data *hapd = ctx;
575 struct sta_info *sta;
577 wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
578 "STA " MACSTR " reason %d",
579 __func__, MAC2STR(addr), reason);
581 sta = ap_get_sta(hapd, addr);
582 hostapd_sta_deauth(hapd, addr, reason);
585 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_AUTHORIZED);
586 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
587 eloop_register_timeout(0, 0, ap_handle_timer, hapd, sta);
588 sta->timeout_next = STA_REMOVE;
592 static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
594 struct hostapd_data *hapd = ctx;
595 michael_mic_failure(hapd, addr, 0);
599 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
600 wpa_eapol_variable var, int value)
602 struct hostapd_data *hapd = ctx;
603 struct sta_info *sta = ap_get_sta(hapd, addr);
607 case WPA_EAPOL_portEnabled:
608 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
610 case WPA_EAPOL_portValid:
611 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
613 case WPA_EAPOL_authorized:
614 ieee802_1x_set_sta_authorized(hapd, sta, value);
616 case WPA_EAPOL_portControl_Auto:
618 sta->eapol_sm->portControl = Auto;
620 case WPA_EAPOL_keyRun:
622 sta->eapol_sm->keyRun = value ? TRUE : FALSE;
624 case WPA_EAPOL_keyAvailable:
626 sta->eapol_sm->eap_if->eapKeyAvailable =
627 value ? TRUE : FALSE;
629 case WPA_EAPOL_keyDone:
631 sta->eapol_sm->keyDone = value ? TRUE : FALSE;
633 case WPA_EAPOL_inc_EapolFramesTx:
635 sta->eapol_sm->dot1xAuthEapolFramesTx++;
641 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
642 wpa_eapol_variable var)
644 struct hostapd_data *hapd = ctx;
645 struct sta_info *sta = ap_get_sta(hapd, addr);
646 if (sta == NULL || sta->eapol_sm == NULL)
649 case WPA_EAPOL_keyRun:
650 return sta->eapol_sm->keyRun;
651 case WPA_EAPOL_keyAvailable:
652 return sta->eapol_sm->eap_if->eapKeyAvailable;
659 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
662 struct hostapd_data *hapd = ctx;
663 return hostapd_get_psk(hapd->conf, addr, prev_psk);
667 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
670 struct hostapd_data *hapd = ctx;
673 struct sta_info *sta;
675 sta = ap_get_sta(hapd, addr);
679 key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
685 os_memcpy(msk, key, keylen);
692 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, wpa_alg alg,
693 const u8 *addr, int idx, u8 *key,
696 struct hostapd_data *hapd = ctx;
697 const char *ifname = hapd->conf->iface;
700 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
705 return hostapd_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
710 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
713 struct hostapd_data *hapd = ctx;
714 return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
718 static int hostapd_wpa_auth_get_seqnum_igtk(void *ctx, const u8 *addr, int idx,
721 struct hostapd_data *hapd = ctx;
722 return hostapd_get_seqnum_igtk(hapd->conf->iface, hapd, addr, idx,
727 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
728 const u8 *data, size_t data_len,
731 struct hostapd_data *hapd = ctx;
732 return hostapd_send_eapol(hapd, addr, data, data_len, encrypt);
736 static int hostapd_wpa_auth_for_each_sta(
737 void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
740 struct hostapd_data *hapd = ctx;
741 struct sta_info *sta;
743 for (sta = hapd->sta_list; sta; sta = sta->next) {
744 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
751 struct wpa_auth_iface_iter_data {
752 int (*cb)(struct wpa_authenticator *sm, void *ctx);
756 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
758 struct wpa_auth_iface_iter_data *data = ctx;
760 for (i = 0; i < iface->num_bss; i++) {
761 if (data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
768 static int hostapd_wpa_auth_for_each_auth(
769 void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
772 struct wpa_auth_iface_iter_data data;
774 data.cb_ctx = cb_ctx;
775 return hostapd_for_each_interface(wpa_auth_iface_iter, &data);
779 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
780 const u8 *data, size_t data_len)
782 struct hostapd_data *hapd = ctx;
784 if (hapd->driver && hapd->driver->send_ether)
785 return hapd->driver->send_ether(hapd->drv_priv, dst,
786 hapd->own_addr, proto,
788 if (hapd->l2 == NULL)
790 return l2_packet_send(hapd->l2, dst, proto, data, data_len);
794 #ifdef CONFIG_IEEE80211R
796 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
797 const u8 *data, size_t data_len)
799 struct hostapd_data *hapd = ctx;
801 struct ieee80211_mgmt *m;
803 struct sta_info *sta;
805 sta = ap_get_sta(hapd, dst);
806 if (sta == NULL || sta->wpa_sm == NULL)
809 m = os_zalloc(sizeof(*m) + data_len);
812 mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
813 m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
814 WLAN_FC_STYPE_ACTION);
815 os_memcpy(m->da, dst, ETH_ALEN);
816 os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
817 os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
818 os_memcpy(&m->u, data, data_len);
820 res = hostapd_send_mgmt_frame(hapd, (u8 *) m, mlen);
826 static struct wpa_state_machine *
827 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
829 struct hostapd_data *hapd = ctx;
830 struct sta_info *sta;
832 sta = ap_sta_add(hapd, sta_addr);
838 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
839 if (sta->wpa_sm == NULL) {
840 ap_free_sta(hapd, sta);
843 sta->auth_alg = WLAN_AUTH_FT;
849 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
852 struct hostapd_data *hapd = ctx;
853 wpa_ft_rrb_rx(hapd->wpa_auth, src_addr, buf, len);
856 #endif /* CONFIG_IEEE80211R */
860 * hostapd_validate_bssid_configuration - Validate BSSID configuration
861 * @iface: Pointer to interface data
862 * Returns: 0 on success, -1 on failure
864 * This function is used to validate that the configured BSSIDs are valid.
866 static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
868 u8 mask[ETH_ALEN] = { 0 };
869 struct hostapd_data *hapd = iface->bss[0];
870 unsigned int i = iface->conf->num_bss, bits = 0, j;
874 if (hostapd_drv_none(hapd))
877 /* Generate BSSID mask that is large enough to cover the BSSIDs. */
879 /* Determine the bits necessary to cover the number of BSSIDs. */
880 for (i--; i; i >>= 1)
883 /* Determine the bits necessary to any configured BSSIDs,
884 if they are higher than the number of BSSIDs. */
885 for (j = 0; j < iface->conf->num_bss; j++) {
886 if (hostapd_mac_comp_empty(iface->conf->bss[j].bssid) == 0) {
892 for (i = 0; i < ETH_ALEN; i++) {
894 iface->conf->bss[j].bssid[i] ^
902 for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
908 while (mask[i] != 0) {
918 wpa_printf(MSG_ERROR, "Too many bits in the BSSID mask (%u)",
923 os_memset(mask, 0xff, ETH_ALEN);
925 for (i = 5; i > 5 - j; i--)
932 wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
933 (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
935 res = hostapd_valid_bss_mask(hapd, hapd->own_addr, mask);
940 wpa_printf(MSG_ERROR, "Driver did not accept BSSID mask "
941 MACSTR " for start address " MACSTR ".",
942 MAC2STR(mask), MAC2STR(hapd->own_addr));
949 for (i = 0; i < ETH_ALEN; i++) {
950 if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
951 wpa_printf(MSG_ERROR, "Invalid BSSID mask " MACSTR
952 " for start address " MACSTR ".",
953 MAC2STR(mask), MAC2STR(hapd->own_addr));
954 wpa_printf(MSG_ERROR, "Start address must be the "
955 "first address in the block (i.e., addr "
956 "AND mask == addr).");
965 static int mac_in_conf(struct hostapd_config *conf, const void *a)
969 for (i = 0; i < conf->num_bss; i++) {
970 if (hostapd_mac_comp(conf->bss[i].bssid, a) == 0) {
979 static int hostapd_setup_wpa(struct hostapd_data *hapd)
981 struct wpa_auth_config _conf;
982 struct wpa_auth_callbacks cb;
986 hostapd_wpa_auth_conf(hapd->conf, &_conf);
987 os_memset(&cb, 0, sizeof(cb));
989 cb.logger = hostapd_wpa_auth_logger;
990 cb.disconnect = hostapd_wpa_auth_disconnect;
991 cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
992 cb.set_eapol = hostapd_wpa_auth_set_eapol;
993 cb.get_eapol = hostapd_wpa_auth_get_eapol;
994 cb.get_psk = hostapd_wpa_auth_get_psk;
995 cb.get_msk = hostapd_wpa_auth_get_msk;
996 cb.set_key = hostapd_wpa_auth_set_key;
997 cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
998 cb.get_seqnum_igtk = hostapd_wpa_auth_get_seqnum_igtk;
999 cb.send_eapol = hostapd_wpa_auth_send_eapol;
1000 cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
1001 cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
1002 cb.send_ether = hostapd_wpa_auth_send_ether;
1003 #ifdef CONFIG_IEEE80211R
1004 cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
1005 cb.add_sta = hostapd_wpa_auth_add_sta;
1006 #endif /* CONFIG_IEEE80211R */
1007 hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
1008 if (hapd->wpa_auth == NULL) {
1009 wpa_printf(MSG_ERROR, "WPA initialization failed.");
1013 if (hostapd_set_privacy(hapd, 1)) {
1014 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
1015 "for interface %s", hapd->conf->iface);
1019 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
1020 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
1021 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
1022 "the kernel driver.");
1026 if (rsn_preauth_iface_init(hapd)) {
1027 wpa_printf(MSG_ERROR, "Initialization of RSN "
1028 "pre-authentication failed.");
1037 static int hostapd_setup_radius_srv(struct hostapd_data *hapd,
1038 struct hostapd_bss_config *conf)
1040 struct radius_server_conf srv;
1041 os_memset(&srv, 0, sizeof(srv));
1042 srv.client_file = conf->radius_server_clients;
1043 srv.auth_port = conf->radius_server_auth_port;
1044 srv.conf_ctx = conf;
1045 srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
1046 srv.ssl_ctx = hapd->ssl_ctx;
1047 srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
1048 srv.eap_fast_a_id = conf->eap_fast_a_id;
1049 srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
1050 srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
1051 srv.eap_fast_prov = conf->eap_fast_prov;
1052 srv.pac_key_lifetime = conf->pac_key_lifetime;
1053 srv.pac_key_refresh_time = conf->pac_key_refresh_time;
1054 srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
1055 srv.tnc = conf->tnc;
1056 srv.wps = hapd->wps;
1057 srv.ipv6 = conf->radius_server_ipv6;
1058 srv.get_eap_user = hostapd_radius_get_eap_user;
1059 srv.eap_req_id_text = conf->eap_req_id_text;
1060 srv.eap_req_id_text_len = conf->eap_req_id_text_len;
1062 hapd->radius_srv = radius_server_init(&srv);
1063 if (hapd->radius_srv == NULL) {
1064 wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
1073 * hostapd_setup_bss - Per-BSS setup (initialization)
1074 * @hapd: Pointer to BSS data
1075 * @first: Whether this BSS is the first BSS of an interface
1077 * This function is used to initialize all per-BSS data structures and
1078 * resources. This gets called in a loop for each BSS when an interface is
1079 * initialized. Most of the modules that are initialized here will be
1080 * deinitialized in hostapd_cleanup().
1082 static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
1084 struct hostapd_bss_config *conf = hapd->conf;
1085 u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
1086 int ssid_len, set_ssid;
1089 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
1090 /* Allocate the next available BSSID. */
1092 inc_byte_array(hapd->own_addr, ETH_ALEN);
1093 } while (mac_in_conf(hapd->iconf, hapd->own_addr));
1095 /* Allocate the configured BSSID. */
1096 os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
1098 if (hostapd_mac_comp(hapd->own_addr,
1099 hapd->iface->bss[0]->own_addr) ==
1101 wpa_printf(MSG_ERROR, "BSS '%s' may not have "
1102 "BSSID set to the MAC address of "
1103 "the radio", hapd->conf->iface);
1108 hapd->interface_added = 1;
1109 if (hostapd_bss_add(hapd->iface->bss[0], hapd->conf->iface,
1111 wpa_printf(MSG_ERROR, "Failed to add BSS (BSSID="
1112 MACSTR ")", MAC2STR(hapd->own_addr));
1117 hostapd_flush_old_stations(hapd);
1118 hostapd_set_privacy(hapd, 0);
1120 hostapd_broadcast_wep_clear(hapd);
1121 if (hostapd_setup_encryption(hapd->conf->iface, hapd))
1125 * Fetch the SSID from the system and use it or,
1126 * if one was specified in the config file, verify they
1129 ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
1131 wpa_printf(MSG_ERROR, "Could not read SSID from system");
1134 if (conf->ssid.ssid_set) {
1136 * If SSID is specified in the config file and it differs
1137 * from what is being used then force installation of the
1140 set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
1141 os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
1144 * No SSID in the config file; just use the one we got
1148 conf->ssid.ssid_len = ssid_len;
1149 os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
1150 conf->ssid.ssid[conf->ssid.ssid_len] = '\0';
1153 if (!hostapd_drv_none(hapd)) {
1154 wpa_printf(MSG_ERROR, "Using interface %s with hwaddr " MACSTR
1156 hapd->conf->iface, MAC2STR(hapd->own_addr),
1157 hapd->conf->ssid.ssid);
1160 if (hostapd_setup_wpa_psk(conf)) {
1161 wpa_printf(MSG_ERROR, "WPA-PSK setup failed.");
1165 /* Set SSID for the kernel driver (to be used in beacon and probe
1166 * response frames) */
1167 if (set_ssid && hostapd_set_ssid(hapd, (u8 *) conf->ssid.ssid,
1168 conf->ssid.ssid_len)) {
1169 wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
1173 if (wpa_debug_level == MSG_MSGDUMP)
1174 conf->radius->msg_dumps = 1;
1175 hapd->radius = radius_client_init(hapd, conf->radius);
1176 if (hapd->radius == NULL) {
1177 wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
1181 if (hostapd_acl_init(hapd)) {
1182 wpa_printf(MSG_ERROR, "ACL initialization failed.");
1185 if (hostapd_init_wps(hapd, conf))
1188 if (ieee802_1x_init(hapd)) {
1189 wpa_printf(MSG_ERROR, "IEEE 802.1X initialization failed.");
1193 if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
1196 if (accounting_init(hapd)) {
1197 wpa_printf(MSG_ERROR, "Accounting initialization failed.");
1201 if (hapd->conf->ieee802_11f &&
1202 (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
1203 wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
1208 if (hostapd_ctrl_iface_init(hapd)) {
1209 wpa_printf(MSG_ERROR, "Failed to setup control interface");
1213 if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
1214 wpa_printf(MSG_ERROR, "VLAN initialization failed.");
1218 #ifdef CONFIG_IEEE80211R
1219 if (!hostapd_drv_none(hapd)) {
1220 hapd->l2 = l2_packet_init(hapd->conf->iface, NULL, ETH_P_RRB,
1221 hostapd_rrb_receive, hapd, 0);
1222 if (hapd->l2 == NULL &&
1223 (hapd->driver == NULL ||
1224 hapd->driver->send_ether == NULL)) {
1225 wpa_printf(MSG_ERROR, "Failed to open l2_packet "
1230 #endif /* CONFIG_IEEE80211R */
1232 ieee802_11_set_beacon(hapd);
1234 if (conf->radius_server_clients &&
1235 hostapd_setup_radius_srv(hapd, conf))
1242 static void hostapd_tx_queue_params(struct hostapd_iface *iface)
1244 struct hostapd_data *hapd = iface->bss[0];
1246 struct hostapd_tx_queue_params *p;
1248 for (i = 0; i < NUM_TX_QUEUES; i++) {
1249 p = &iface->conf->tx_queue[i];
1254 if (hostapd_set_tx_queue_params(hapd, i, p->aifs, p->cwmin,
1255 p->cwmax, p->burst)) {
1256 wpa_printf(MSG_DEBUG, "Failed to set TX queue "
1257 "parameters for queue %d.", i);
1258 /* Continue anyway */
1264 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
1265 size_t identity_len, int phase2,
1266 struct eap_user *user)
1268 const struct hostapd_eap_user *eap_user;
1271 eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
1272 if (eap_user == NULL)
1278 os_memset(user, 0, sizeof(*user));
1279 count = EAP_USER_MAX_METHODS;
1280 if (count > EAP_MAX_METHODS)
1281 count = EAP_MAX_METHODS;
1282 for (i = 0; i < count; i++) {
1283 user->methods[i].vendor = eap_user->methods[i].vendor;
1284 user->methods[i].method = eap_user->methods[i].method;
1287 if (eap_user->password) {
1288 user->password = os_malloc(eap_user->password_len);
1289 if (user->password == NULL)
1291 os_memcpy(user->password, eap_user->password,
1292 eap_user->password_len);
1293 user->password_len = eap_user->password_len;
1294 user->password_hash = eap_user->password_hash;
1296 user->force_version = eap_user->force_version;
1297 user->ttls_auth = eap_user->ttls_auth;
1303 static int setup_interface(struct hostapd_iface *iface)
1305 struct hostapd_data *hapd = iface->bss[0];
1306 struct hostapd_bss_config *conf = hapd->conf;
1309 u8 *b = conf->bssid;
1312 * Initialize the driver interface and make sure that all BSSes get
1313 * configured with a pointer to this driver interface.
1315 if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
1317 hapd->drv_priv = hostapd_driver_init(hapd, b);
1319 if (hapd->drv_priv == NULL) {
1320 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
1321 hapd->driver ? hapd->driver->name : "Unknown");
1322 hapd->driver = NULL;
1325 for (i = 0; i < iface->num_bss; i++) {
1326 iface->bss[i]->driver = hapd->driver;
1327 iface->bss[i]->drv_priv = hapd->drv_priv;
1330 if (hostapd_driver_set_mode(hapd, IEEE80211_MODE_AP)) {
1331 wpa_printf(MSG_ERROR, "Failed to set driver in AP mode");
1335 if (hostapd_validate_bssid_configuration(iface))
1338 #ifdef CONFIG_IEEE80211N
1339 SET_2BIT_LE16(&iface->ht_op_mode,
1340 HT_INFO_OPERATION_MODE_OP_MODE_OFFSET,
1342 #endif /* CONFIG_IEEE80211N */
1344 if (hapd->iconf->country[0] && hapd->iconf->country[1]) {
1345 os_memcpy(country, hapd->iconf->country, 3);
1347 if (hostapd_set_country(hapd, country) < 0) {
1348 wpa_printf(MSG_ERROR, "Failed to set country code");
1353 if (hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
1354 hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets)) {
1355 wpa_printf(MSG_ERROR, "Failed to set bridge_packets for "
1360 if (hostapd_get_hw_features(iface)) {
1361 /* Not all drivers support this yet, so continue without hw
1364 int ret = hostapd_select_hw_mode(iface);
1366 wpa_printf(MSG_ERROR, "Could not select hw_mode and "
1367 "channel. (%d)", ret);
1370 ret = hostapd_check_ht_capab(iface);
1374 wpa_printf(MSG_DEBUG, "Interface initialization will "
1375 "be completed in a callback");
1379 return hostapd_setup_interface_complete(iface, 0);
1383 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err)
1385 struct hostapd_data *hapd = iface->bss[0];
1391 wpa_printf(MSG_ERROR, "Interface initialization failed");
1396 wpa_printf(MSG_DEBUG, "Completing interface initialization");
1397 if (hapd->iconf->channel) {
1398 freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
1399 wpa_printf(MSG_DEBUG, "Mode: %s Channel: %d "
1400 "Frequency: %d MHz",
1401 hostapd_hw_mode_txt(hapd->iconf->hw_mode),
1402 hapd->iconf->channel, freq);
1404 if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq,
1405 hapd->iconf->channel,
1406 hapd->iconf->ieee80211n,
1407 hapd->iconf->secondary_channel)) {
1408 wpa_printf(MSG_ERROR, "Could not set channel for "
1414 hostapd_set_beacon_int(hapd, hapd->iconf->beacon_int);
1416 if (hapd->iconf->rts_threshold > -1 &&
1417 hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
1418 wpa_printf(MSG_ERROR, "Could not set RTS threshold for "
1423 if (hapd->iconf->fragm_threshold > -1 &&
1424 hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
1425 wpa_printf(MSG_ERROR, "Could not set fragmentation threshold "
1426 "for kernel driver");
1430 prev_addr = hapd->own_addr;
1432 for (j = 0; j < iface->num_bss; j++) {
1433 hapd = iface->bss[j];
1435 os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
1436 if (hostapd_setup_bss(hapd, j == 0))
1438 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
1439 prev_addr = hapd->own_addr;
1442 hostapd_tx_queue_params(iface);
1444 ap_list_init(iface);
1446 if (hostapd_driver_commit(hapd) < 0) {
1447 wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
1448 "configuration", __func__);
1452 wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
1453 iface->bss[0]->conf->iface);
1460 * hostapd_setup_interface - Setup of an interface
1461 * @iface: Pointer to interface data.
1462 * Returns: 0 on success, -1 on failure
1464 * Initializes the driver interface, validates the configuration,
1465 * and sets driver parameters based on the configuration.
1466 * Flushes old stations, sets the channel, encryption,
1467 * beacons, and WDS links based on the configuration.
1469 int hostapd_setup_interface(struct hostapd_iface *iface)
1473 ret = setup_interface(iface);
1475 wpa_printf(MSG_DEBUG, "%s: Unable to setup interface.",
1476 iface->bss[0]->conf->iface);
1486 * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
1487 * @hapd_iface: Pointer to interface data
1488 * @conf: Pointer to per-interface configuration
1489 * @bss: Pointer to per-BSS configuration for this BSS
1490 * Returns: Pointer to allocated BSS data
1492 * This function is used to allocate per-BSS data structure. This data will be
1493 * freed after hostapd_cleanup() is called for it during interface
1496 struct hostapd_data *
1497 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
1498 struct hostapd_config *conf,
1499 struct hostapd_bss_config *bss)
1501 struct hostapd_data *hapd;
1503 hapd = os_zalloc(sizeof(*hapd));
1509 hapd->iface = hapd_iface;
1511 #ifdef EAP_TLS_FUNCS
1512 if (hapd->conf->eap_server &&
1513 (hapd->conf->ca_cert || hapd->conf->server_cert ||
1514 hapd->conf->dh_file)) {
1515 struct tls_connection_params params;
1517 hapd->ssl_ctx = tls_init(NULL);
1518 if (hapd->ssl_ctx == NULL) {
1519 wpa_printf(MSG_ERROR, "Failed to initialize TLS");
1523 os_memset(¶ms, 0, sizeof(params));
1524 params.ca_cert = hapd->conf->ca_cert;
1525 params.client_cert = hapd->conf->server_cert;
1526 params.private_key = hapd->conf->private_key;
1527 params.private_key_passwd = hapd->conf->private_key_passwd;
1528 params.dh_file = hapd->conf->dh_file;
1530 if (tls_global_set_params(hapd->ssl_ctx, ¶ms)) {
1531 wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
1535 if (tls_global_set_verify(hapd->ssl_ctx,
1536 hapd->conf->check_crl)) {
1537 wpa_printf(MSG_ERROR, "Failed to enable check_crl");
1541 #endif /* EAP_TLS_FUNCS */
1544 if (hapd->conf->eap_sim_db) {
1545 hapd->eap_sim_db_priv =
1546 eap_sim_db_init(hapd->conf->eap_sim_db,
1547 hostapd_sim_db_cb, hapd);
1548 if (hapd->eap_sim_db_priv == NULL) {
1549 wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
1550 "database interface");
1554 #endif /* EAP_SERVER */
1556 hapd->driver = hapd->iconf->driver;
1560 #if defined(EAP_TLS_FUNCS) || defined(EAP_SERVER)
1563 /* TODO: cleanup allocated resources(?) */
1569 void hostapd_interface_deinit(struct hostapd_iface *iface)
1576 hostapd_cleanup_iface_pre(iface);
1577 for (j = 0; j < iface->num_bss; j++) {
1578 struct hostapd_data *hapd = iface->bss[j];
1579 hostapd_free_stas(hapd);
1580 hostapd_flush_old_stations(hapd);
1581 hostapd_cleanup(hapd);
1582 if (j == iface->num_bss - 1 && hapd->driver)
1583 hostapd_driver_deinit(hapd);
1585 for (j = 0; j < iface->num_bss; j++)
1586 os_free(iface->bss[j]);
1587 hostapd_cleanup_iface(iface);
1591 int hostapd_register_probereq_cb(struct hostapd_data *hapd,
1592 void (*cb)(void *ctx, const u8 *sa,
1593 const u8 *ie, size_t ie_len),
1596 struct hostapd_probereq_cb *n;
1598 n = os_realloc(hapd->probereq_cb, (hapd->num_probereq_cb + 1) *
1599 sizeof(struct hostapd_probereq_cb));
1603 hapd->probereq_cb = n;
1604 n = &hapd->probereq_cb[hapd->num_probereq_cb];
1605 hapd->num_probereq_cb++;