2 * hostapd / Initialization and configuration
3 * Copyright (c) 2002-2008, 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.
16 #ifndef CONFIG_NATIVE_WINDOWS
18 #endif /* CONFIG_NATIVE_WINDOWS */
22 #include "ieee802_1x.h"
23 #include "ieee802_11.h"
25 #include "hw_features.h"
26 #include "accounting.h"
30 #include "ieee802_11_auth.h"
34 #include "radius/radius_client.h"
35 #include "radius/radius_server.h"
39 #include "vlan_init.h"
40 #include "ctrl_iface.h"
42 #include "eap_server/eap_sim_db.h"
43 #include "eap_server/eap.h"
44 #include "eap_server/tncs.h"
46 #include "l2_packet/l2_packet.h"
49 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
50 size_t identity_len, int phase2,
51 struct eap_user *user);
53 struct hapd_interfaces {
55 struct hostapd_iface **iface;
58 unsigned char rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
61 extern int wpa_debug_level;
62 extern int wpa_debug_show_keys;
63 extern int wpa_debug_timestamp;
66 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
67 int level, const char *txt, size_t len)
69 struct hostapd_data *hapd = ctx;
70 char *format, *module_str;
72 int conf_syslog_level, conf_stdout_level;
73 unsigned int conf_syslog, conf_stdout;
76 format = os_malloc(maxlen);
80 if (hapd && hapd->conf) {
81 conf_syslog_level = hapd->conf->logger_syslog_level;
82 conf_stdout_level = hapd->conf->logger_stdout_level;
83 conf_syslog = hapd->conf->logger_syslog;
84 conf_stdout = hapd->conf->logger_stdout;
86 conf_syslog_level = conf_stdout_level = 0;
87 conf_syslog = conf_stdout = (unsigned int) -1;
91 case HOSTAPD_MODULE_IEEE80211:
92 module_str = "IEEE 802.11";
94 case HOSTAPD_MODULE_IEEE8021X:
95 module_str = "IEEE 802.1X";
97 case HOSTAPD_MODULE_RADIUS:
98 module_str = "RADIUS";
100 case HOSTAPD_MODULE_WPA:
103 case HOSTAPD_MODULE_DRIVER:
104 module_str = "DRIVER";
106 case HOSTAPD_MODULE_IAPP:
109 case HOSTAPD_MODULE_MLME:
117 if (hapd && hapd->conf && addr)
118 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
119 hapd->conf->iface, MAC2STR(addr),
120 module_str ? " " : "", module_str, txt);
121 else if (hapd && hapd->conf)
122 os_snprintf(format, maxlen, "%s:%s%s %s",
123 hapd->conf->iface, module_str ? " " : "",
126 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
127 MAC2STR(addr), module_str ? " " : "",
130 os_snprintf(format, maxlen, "%s%s%s",
131 module_str, module_str ? ": " : "", txt);
133 if ((conf_stdout & module) && level >= conf_stdout_level) {
134 wpa_debug_print_timestamp();
135 printf("%s\n", format);
138 #ifndef CONFIG_NATIVE_WINDOWS
139 if ((conf_syslog & module) && level >= conf_syslog_level) {
142 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
143 case HOSTAPD_LEVEL_DEBUG:
144 priority = LOG_DEBUG;
146 case HOSTAPD_LEVEL_INFO:
149 case HOSTAPD_LEVEL_NOTICE:
150 priority = LOG_NOTICE;
152 case HOSTAPD_LEVEL_WARNING:
153 priority = LOG_WARNING;
159 syslog(priority, "%s", format);
161 #endif /* CONFIG_NATIVE_WINDOWS */
167 static void hostapd_deauth_all_stas(struct hostapd_data *hapd)
171 /* New Prism2.5/3 STA firmware versions seem to have issues with this
172 * broadcast deauth frame. This gets the firmware in odd state where
173 * nothing works correctly, so let's skip sending this for the hostap
176 if (hapd->driver && os_strcmp(hapd->driver->name, "hostap") != 0) {
177 os_memset(addr, 0xff, ETH_ALEN);
178 hostapd_sta_deauth(hapd, addr,
179 WLAN_REASON_PREV_AUTH_NOT_VALID);
185 * hostapd_prune_associations - Remove extraneous associations
186 * @hapd: Pointer to BSS data for the most recent association
187 * @sta: Pointer to the associated STA data
189 * This function looks through all radios and BSS's for previous
190 * (stale) associations of STA. If any are found they are removed.
192 static void hostapd_prune_associations(struct hostapd_data *hapd,
193 struct sta_info *sta)
195 struct sta_info *osta;
196 struct hostapd_data *ohapd;
198 struct hapd_interfaces *interfaces = eloop_get_user_data();
200 for (i = 0; i < interfaces->count; i++) {
201 for (j = 0; j < interfaces->iface[i]->num_bss; j++) {
202 ohapd = interfaces->iface[i]->bss[j];
205 osta = ap_get_sta(ohapd, sta->addr);
209 ap_sta_disassociate(ohapd, osta,
210 WLAN_REASON_UNSPECIFIED);
217 * hostapd_new_assoc_sta - Notify that a new station associated with the AP
218 * @hapd: Pointer to BSS data
219 * @sta: Pointer to the associated STA data
220 * @reassoc: 1 to indicate this was a re-association; 0 = first association
222 * This function will be called whenever a station associates with the AP. It
223 * can be called for ieee802_11.c for drivers that export MLME to hostapd and
224 * from driver_*.c for drivers that take care of management frames (IEEE 802.11
225 * authentication and association) internally.
227 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
230 if (hapd->tkip_countermeasures) {
231 hostapd_sta_deauth(hapd, sta->addr,
232 WLAN_REASON_MICHAEL_MIC_FAILURE);
236 hostapd_prune_associations(hapd, sta);
238 /* IEEE 802.11F (IAPP) */
239 if (hapd->conf->ieee802_11f)
240 iapp_new_station(hapd->iapp, sta);
242 /* Start accounting here, if IEEE 802.1X and WPA are not used.
243 * IEEE 802.1X/WPA code will start accounting after the station has
244 * been authorized. */
245 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa)
246 accounting_sta_start(hapd, sta);
248 hostapd_wme_sta_config(hapd, sta);
250 /* Start IEEE 802.1X authentication process for new stations */
251 ieee802_1x_new_station(hapd, sta);
253 if (sta->auth_alg != WLAN_AUTH_FT)
254 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH);
256 wpa_auth_sta_associated(hapd->wpa_auth, sta->wpa_sm);
261 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
262 struct sta_info *sta, void *ctx)
264 if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
270 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
272 struct hostapd_data *hapd = ctx;
273 if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0)
274 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
276 #endif /* EAP_SERVER */
279 static void handle_term(int sig, void *eloop_ctx, void *signal_ctx)
281 printf("Signal %d received - terminating\n", sig);
286 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
287 struct wpa_auth_config *wconf)
289 wconf->wpa = conf->wpa;
290 wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
291 wconf->wpa_pairwise = conf->wpa_pairwise;
292 wconf->wpa_group = conf->wpa_group;
293 wconf->wpa_group_rekey = conf->wpa_group_rekey;
294 wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
295 wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
296 wconf->rsn_pairwise = conf->rsn_pairwise;
297 wconf->rsn_preauth = conf->rsn_preauth;
298 wconf->eapol_version = conf->eapol_version;
299 wconf->peerkey = conf->peerkey;
300 wconf->wme_enabled = conf->wme_enabled;
301 wconf->okc = conf->okc;
302 #ifdef CONFIG_IEEE80211W
303 wconf->ieee80211w = conf->ieee80211w;
304 #endif /* CONFIG_IEEE80211W */
305 #ifdef CONFIG_IEEE80211R
306 wconf->ssid_len = conf->ssid.ssid_len;
307 if (wconf->ssid_len > SSID_LEN)
308 wconf->ssid_len = SSID_LEN;
309 os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
310 os_memcpy(wconf->mobility_domain, conf->mobility_domain,
311 MOBILITY_DOMAIN_ID_LEN);
312 if (conf->nas_identifier &&
313 os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
314 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
315 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
316 wconf->r0_key_holder_len);
318 os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
319 wconf->r0_key_lifetime = conf->r0_key_lifetime;
320 wconf->reassociation_deadline = conf->reassociation_deadline;
321 wconf->r0kh_list = conf->r0kh_list;
322 wconf->r1kh_list = conf->r1kh_list;
323 wconf->pmk_r1_push = conf->pmk_r1_push;
324 #endif /* CONFIG_IEEE80211R */
328 #ifndef CONFIG_NATIVE_WINDOWS
329 static void handle_reload(int sig, void *eloop_ctx, void *signal_ctx)
331 struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
332 struct hostapd_config *newconf;
334 struct wpa_auth_config wpa_auth_conf;
336 printf("Signal %d received - reloading configuration\n", sig);
338 for (i = 0; i < hapds->count; i++) {
339 struct hostapd_data *hapd = hapds->iface[i]->bss[0];
340 newconf = hostapd_config_read(hapds->iface[i]->config_fname);
341 if (newconf == NULL) {
342 printf("Failed to read new configuration file - "
343 "continuing with old.\n");
346 /* TODO: update dynamic data based on changed configuration
347 * items (e.g., open/close sockets, remove stations added to
348 * deny list, etc.) */
349 radius_client_flush(hapd->radius, 0);
350 hostapd_config_free(hapd->iconf);
352 hostapd_wpa_auth_conf(&newconf->bss[0], &wpa_auth_conf);
353 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
355 hapd->iconf = newconf;
356 hapd->conf = &newconf->bss[0];
357 hapds->iface[i]->conf = newconf;
359 if (hostapd_setup_wpa_psk(hapd->conf)) {
360 wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
361 "after reloading configuration");
367 #ifdef HOSTAPD_DUMP_STATE
368 static void hostapd_dump_state(struct hostapd_data *hapd)
372 struct sta_info *sta;
376 if (!hapd->conf->dump_log_name) {
377 printf("Dump file not defined - ignoring dump request\n");
381 printf("Dumping hostapd state to '%s'\n", hapd->conf->dump_log_name);
382 f = fopen(hapd->conf->dump_log_name, "w");
384 printf("Could not open dump file '%s' for writing.\n",
385 hapd->conf->dump_log_name);
390 fprintf(f, "hostapd state dump - %s", ctime(&now));
391 fprintf(f, "num_sta=%d num_sta_non_erp=%d "
392 "num_sta_no_short_slot_time=%d\n"
393 "num_sta_no_short_preamble=%d\n",
394 hapd->num_sta, hapd->iface->num_sta_non_erp,
395 hapd->iface->num_sta_no_short_slot_time,
396 hapd->iface->num_sta_no_short_preamble);
398 for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
399 fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
402 " AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s\n"
403 " capability=0x%x listen_interval=%d\n",
406 (sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
407 (sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
408 (sta->flags & WLAN_STA_PS ? "[PS]" : ""),
409 (sta->flags & WLAN_STA_TIM ? "[TIM]" : ""),
410 (sta->flags & WLAN_STA_PERM ? "[PERM]" : ""),
411 (sta->flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" :
413 (sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
415 (sta->flags & WLAN_STA_SHORT_PREAMBLE ?
416 "[SHORT_PREAMBLE]" : ""),
417 (sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
418 (sta->flags & WLAN_STA_WME ? "[WME]" : ""),
419 (sta->flags & WLAN_STA_MFP ? "[MFP]" : ""),
420 (sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
422 sta->listen_interval);
424 fprintf(f, " supported_rates=");
425 for (i = 0; i < sta->supported_rates_len; i++)
426 fprintf(f, "%02x ", sta->supported_rates[i]);
430 " timeout_next=%s\n",
431 (sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" :
432 (sta->timeout_next == STA_DISASSOC ? "DISASSOC" :
435 ieee802_1x_dump_state(f, " ", sta);
438 buf = os_malloc(4096);
440 int count = radius_client_get_mib(hapd->radius, buf, 4096);
443 else if (count > 4095)
446 fprintf(f, "%s", buf);
448 count = radius_server_get_mib(hapd->radius_srv, buf, 4096);
451 else if (count > 4095)
454 fprintf(f, "%s", buf);
459 #endif /* HOSTAPD_DUMP_STATE */
462 static void handle_dump_state(int sig, void *eloop_ctx, void *signal_ctx)
464 #ifdef HOSTAPD_DUMP_STATE
465 struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
468 for (i = 0; i < hapds->count; i++) {
469 struct hostapd_iface *hapd_iface = hapds->iface[i];
470 for (j = 0; j < hapd_iface->num_bss; j++)
471 hostapd_dump_state(hapd_iface->bss[j]);
473 #endif /* HOSTAPD_DUMP_STATE */
475 #endif /* CONFIG_NATIVE_WINDOWS */
477 static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
482 for (i = 0; i < NUM_WEP_KEYS; i++) {
483 if (hostapd_set_encryption(ifname, hapd, "none", NULL, i, NULL,
484 0, i == 0 ? 1 : 0)) {
485 printf("Failed to clear default encryption keys "
486 "(ifname=%s keyidx=%d)\n", ifname, i);
492 static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
494 hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
499 static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
502 struct hostapd_ssid *ssid = &hapd->conf->ssid;
505 if (ssid->wep.default_len &&
506 hostapd_set_encryption(hapd->conf->iface,
507 hapd, "WEP", NULL, idx,
510 idx == ssid->wep.idx)) {
511 printf("Could not set WEP encryption.\n");
515 if (ssid->dyn_vlan_keys) {
517 for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
519 struct hostapd_wep_keys *key = ssid->dyn_vlan_keys[i];
522 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan,
528 if (hostapd_set_encryption(ifname, hapd, "WEP", NULL,
532 printf("Could not set dynamic VLAN WEP "
543 * hostapd_cleanup - Per-BSS cleanup (deinitialization)
544 * @hapd: Pointer to BSS data
546 * This function is used to free all per-BSS data structures and resources.
547 * This gets called in a loop for each BSS between calls to
548 * hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
549 * is deinitialized. Most of the modules that are initialized in
550 * hostapd_setup_bss() are deinitialized here.
552 static void hostapd_cleanup(struct hostapd_data *hapd)
554 hostapd_ctrl_iface_deinit(hapd);
556 os_free(hapd->default_wep_key);
557 hapd->default_wep_key = NULL;
558 iapp_deinit(hapd->iapp);
560 accounting_deinit(hapd);
561 rsn_preauth_iface_deinit(hapd);
562 if (hapd->wpa_auth) {
563 wpa_deinit(hapd->wpa_auth);
564 hapd->wpa_auth = NULL;
566 if (hostapd_set_privacy(hapd, 0)) {
567 wpa_printf(MSG_DEBUG, "Could not disable "
568 "PrivacyInvoked for interface %s",
572 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
573 wpa_printf(MSG_DEBUG, "Could not remove generic "
574 "information element from interface %s",
578 ieee802_1x_deinit(hapd);
580 hostapd_acl_deinit(hapd);
581 radius_client_deinit(hapd->radius);
583 radius_server_deinit(hapd->radius_srv);
584 hapd->radius_srv = NULL;
586 #ifdef CONFIG_IEEE80211R
587 l2_packet_deinit(hapd->l2);
588 #endif /* CONFIG_IEEE80211R */
590 hostapd_wireless_event_deinit(hapd);
594 tls_deinit(hapd->ssl_ctx);
595 hapd->ssl_ctx = NULL;
597 #endif /* EAP_TLS_FUNCS */
600 if (hapd->eap_sim_db_priv) {
601 eap_sim_db_deinit(hapd->eap_sim_db_priv);
602 hapd->eap_sim_db_priv = NULL;
604 #endif /* EAP_SERVER */
606 if (hapd->interface_added &&
607 hostapd_bss_remove(hapd, hapd->conf->iface)) {
608 printf("Failed to remove BSS interface %s\n",
615 * hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
616 * @iface: Pointer to interface data
618 * This function is called before per-BSS data structures are deinitialized
619 * with hostapd_cleanup().
621 static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
627 * hostapd_cleanup_iface - Complete per-interface cleanup
628 * @iface: Pointer to interface data
630 * This function is called after per-BSS data structures are deinitialized
631 * with hostapd_cleanup().
633 static void hostapd_cleanup_iface(struct hostapd_iface *iface)
635 hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
636 iface->hw_features = NULL;
637 os_free(iface->current_rates);
638 iface->current_rates = NULL;
639 ap_list_deinit(iface);
640 hostapd_config_free(iface->conf);
643 os_free(iface->config_fname);
649 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
653 hostapd_broadcast_wep_set(hapd);
655 if (hapd->conf->ssid.wep.default_len)
658 for (i = 0; i < 4; i++) {
659 if (hapd->conf->ssid.wep.key[i] &&
660 hostapd_set_encryption(iface, hapd, "WEP", NULL,
661 i, hapd->conf->ssid.wep.key[i],
662 hapd->conf->ssid.wep.len[i],
663 i == hapd->conf->ssid.wep.idx)) {
664 printf("Could not set WEP encryption.\n");
667 if (hapd->conf->ssid.wep.key[i] &&
668 i == hapd->conf->ssid.wep.idx)
669 hostapd_set_privacy(hapd, 1);
676 static int hostapd_flush_old_stations(struct hostapd_data *hapd)
680 if (hostapd_drv_none(hapd))
683 wpa_printf(MSG_DEBUG, "Flushing old station entries");
684 if (hostapd_flush(hapd)) {
685 printf("Could not connect to kernel driver.\n");
688 wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
689 hostapd_deauth_all_stas(hapd);
695 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
696 logger_level level, const char *txt)
698 struct hostapd_data *hapd = ctx;
703 hlevel = HOSTAPD_LEVEL_WARNING;
706 hlevel = HOSTAPD_LEVEL_INFO;
710 hlevel = HOSTAPD_LEVEL_DEBUG;
714 hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
718 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
721 struct hostapd_data *hapd = ctx;
722 struct sta_info *sta;
724 wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
725 "STA " MACSTR " reason %d",
726 __func__, MAC2STR(addr), reason);
728 sta = ap_get_sta(hapd, addr);
729 hostapd_sta_deauth(hapd, addr, reason);
732 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_AUTHORIZED);
733 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
734 eloop_register_timeout(0, 0, ap_handle_timer, hapd, sta);
735 sta->timeout_next = STA_REMOVE;
739 static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
741 struct hostapd_data *hapd = ctx;
742 ieee80211_michael_mic_failure(hapd, addr, 0);
746 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
747 wpa_eapol_variable var, int value)
749 struct hostapd_data *hapd = ctx;
750 struct sta_info *sta = ap_get_sta(hapd, addr);
754 case WPA_EAPOL_portEnabled:
755 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
757 case WPA_EAPOL_portValid:
758 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
760 case WPA_EAPOL_authorized:
761 ieee802_1x_set_sta_authorized(hapd, sta, value);
763 case WPA_EAPOL_portControl_Auto:
765 sta->eapol_sm->portControl = Auto;
767 case WPA_EAPOL_keyRun:
769 sta->eapol_sm->keyRun = value ? TRUE : FALSE;
771 case WPA_EAPOL_keyAvailable:
773 sta->eapol_sm->eap_if->eapKeyAvailable =
774 value ? TRUE : FALSE;
776 case WPA_EAPOL_keyDone:
778 sta->eapol_sm->keyDone = value ? TRUE : FALSE;
780 case WPA_EAPOL_inc_EapolFramesTx:
782 sta->eapol_sm->dot1xAuthEapolFramesTx++;
788 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
789 wpa_eapol_variable var)
791 struct hostapd_data *hapd = ctx;
792 struct sta_info *sta = ap_get_sta(hapd, addr);
793 if (sta == NULL || sta->eapol_sm == NULL)
796 case WPA_EAPOL_keyRun:
797 return sta->eapol_sm->keyRun;
798 case WPA_EAPOL_keyAvailable:
799 return sta->eapol_sm->eap_if->eapKeyAvailable;
806 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
809 struct hostapd_data *hapd = ctx;
810 return hostapd_get_psk(hapd->conf, addr, prev_psk);
814 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
817 struct hostapd_data *hapd = ctx;
820 struct sta_info *sta;
822 sta = ap_get_sta(hapd, addr);
826 key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
832 os_memcpy(msk, key, keylen);
839 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, const char *alg,
840 const u8 *addr, int idx, u8 *key,
843 struct hostapd_data *hapd = ctx;
844 const char *ifname = hapd->conf->iface;
847 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
852 return hostapd_set_encryption(ifname, hapd, alg, addr, idx,
857 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
860 struct hostapd_data *hapd = ctx;
861 return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
865 static int hostapd_wpa_auth_get_seqnum_igtk(void *ctx, const u8 *addr, int idx,
868 struct hostapd_data *hapd = ctx;
869 return hostapd_get_seqnum_igtk(hapd->conf->iface, hapd, addr, idx,
874 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
875 const u8 *data, size_t data_len,
878 struct hostapd_data *hapd = ctx;
879 return hostapd_send_eapol(hapd, addr, data, data_len, encrypt);
883 static int hostapd_wpa_auth_for_each_sta(
884 void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
887 struct hostapd_data *hapd = ctx;
888 struct sta_info *sta;
890 for (sta = hapd->sta_list; sta; sta = sta->next) {
891 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
898 static int hostapd_wpa_auth_for_each_auth(
899 void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
902 struct hostapd_data *ohapd;
904 struct hapd_interfaces *interfaces = eloop_get_user_data();
906 for (i = 0; i < interfaces->count; i++) {
907 for (j = 0; j < interfaces->iface[i]->num_bss; j++) {
908 ohapd = interfaces->iface[i]->bss[j];
909 if (cb(ohapd->wpa_auth, cb_ctx))
918 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
919 const u8 *data, size_t data_len)
921 struct hostapd_data *hapd = ctx;
923 if (hapd->driver && hapd->driver->send_ether)
924 return hapd->driver->send_ether(hapd->drv_priv, dst,
925 hapd->own_addr, proto,
927 if (hapd->l2 == NULL)
929 return l2_packet_send(hapd->l2, dst, proto, data, data_len);
933 #ifdef CONFIG_IEEE80211R
935 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
936 const u8 *data, size_t data_len)
938 struct hostapd_data *hapd = ctx;
940 struct ieee80211_mgmt *m;
942 struct sta_info *sta;
944 sta = ap_get_sta(hapd, dst);
945 if (sta == NULL || sta->wpa_sm == NULL)
948 m = os_zalloc(sizeof(*m) + data_len);
951 mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
952 m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
953 WLAN_FC_STYPE_ACTION);
954 os_memcpy(m->da, dst, ETH_ALEN);
955 os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
956 os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
957 os_memcpy(&m->u, data, data_len);
959 res = hostapd_send_mgmt_frame(hapd, (u8 *) m, mlen, 0);
965 static struct wpa_state_machine *
966 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
968 struct hostapd_data *hapd = ctx;
969 struct sta_info *sta;
971 sta = ap_sta_add(hapd, sta_addr);
977 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
978 if (sta->wpa_sm == NULL) {
979 ap_free_sta(hapd, sta);
982 sta->auth_alg = WLAN_AUTH_FT;
988 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
991 struct hostapd_data *hapd = ctx;
992 wpa_ft_rrb_rx(hapd->wpa_auth, src_addr, buf, len);
995 #endif /* CONFIG_IEEE80211R */
999 * hostapd_validate_bssid_configuration - Validate BSSID configuration
1000 * @iface: Pointer to interface data
1001 * Returns: 0 on success, -1 on failure
1003 * This function is used to validate that the configured BSSIDs are valid.
1005 static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
1007 u8 mask[ETH_ALEN] = { 0 };
1008 struct hostapd_data *hapd = iface->bss[0];
1009 unsigned int i = iface->conf->num_bss, bits = 0, j;
1012 if (hostapd_drv_none(hapd))
1015 /* Generate BSSID mask that is large enough to cover the BSSIDs. */
1017 /* Determine the bits necessary to cover the number of BSSIDs. */
1018 for (i--; i; i >>= 1)
1021 /* Determine the bits necessary to any configured BSSIDs,
1022 if they are higher than the number of BSSIDs. */
1023 for (j = 0; j < iface->conf->num_bss; j++) {
1024 if (hostapd_mac_comp_empty(iface->conf->bss[j].bssid) == 0)
1027 for (i = 0; i < ETH_ALEN; i++) {
1029 iface->conf->bss[j].bssid[i] ^
1034 for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
1040 while (mask[i] != 0) {
1052 os_memset(mask, 0xff, ETH_ALEN);
1054 for (i = 5; i > 5 - j; i--)
1060 wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
1061 (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
1063 res = hostapd_valid_bss_mask(hapd, hapd->own_addr, mask);
1068 printf("Driver did not accept BSSID mask " MACSTR " for start "
1069 "address " MACSTR ".\n",
1070 MAC2STR(mask), MAC2STR(hapd->own_addr));
1074 for (i = 0; i < ETH_ALEN; i++) {
1075 if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
1076 printf("Invalid BSSID mask " MACSTR " for start "
1077 "address " MACSTR ".\n"
1078 "Start address must be the first address in the"
1079 " block (i.e., addr AND mask == addr).\n",
1080 MAC2STR(mask), MAC2STR(hapd->own_addr));
1089 static int mac_in_conf(struct hostapd_config *conf, const void *a)
1093 for (i = 0; i < conf->num_bss; i++) {
1094 if (hostapd_mac_comp(conf->bss[i].bssid, a) == 0) {
1103 static int hostapd_setup_wpa(struct hostapd_data *hapd)
1105 struct wpa_auth_config _conf;
1106 struct wpa_auth_callbacks cb;
1110 hostapd_wpa_auth_conf(hapd->conf, &_conf);
1111 os_memset(&cb, 0, sizeof(cb));
1113 cb.logger = hostapd_wpa_auth_logger;
1114 cb.disconnect = hostapd_wpa_auth_disconnect;
1115 cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
1116 cb.set_eapol = hostapd_wpa_auth_set_eapol;
1117 cb.get_eapol = hostapd_wpa_auth_get_eapol;
1118 cb.get_psk = hostapd_wpa_auth_get_psk;
1119 cb.get_msk = hostapd_wpa_auth_get_msk;
1120 cb.set_key = hostapd_wpa_auth_set_key;
1121 cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
1122 cb.get_seqnum_igtk = hostapd_wpa_auth_get_seqnum_igtk;
1123 cb.send_eapol = hostapd_wpa_auth_send_eapol;
1124 cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
1125 cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
1126 cb.send_ether = hostapd_wpa_auth_send_ether;
1127 #ifdef CONFIG_IEEE80211R
1128 cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
1129 cb.add_sta = hostapd_wpa_auth_add_sta;
1130 #endif /* CONFIG_IEEE80211R */
1131 hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
1132 if (hapd->wpa_auth == NULL) {
1133 printf("WPA initialization failed.\n");
1137 if (hostapd_set_privacy(hapd, 1)) {
1138 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
1139 "for interface %s", hapd->conf->iface);
1143 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
1144 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
1145 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
1146 "the kernel driver.");
1150 if (rsn_preauth_iface_init(hapd)) {
1151 printf("Initialization of RSN pre-authentication "
1161 static int hostapd_setup_radius_srv(struct hostapd_data *hapd,
1162 struct hostapd_bss_config *conf)
1164 struct radius_server_conf srv;
1165 os_memset(&srv, 0, sizeof(srv));
1166 srv.client_file = conf->radius_server_clients;
1167 srv.auth_port = conf->radius_server_auth_port;
1168 srv.conf_ctx = conf;
1169 srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
1170 srv.ssl_ctx = hapd->ssl_ctx;
1171 srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
1172 srv.eap_fast_a_id = conf->eap_fast_a_id;
1173 srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
1174 srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
1175 srv.eap_fast_prov = conf->eap_fast_prov;
1176 srv.pac_key_lifetime = conf->pac_key_lifetime;
1177 srv.pac_key_refresh_time = conf->pac_key_refresh_time;
1178 srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
1179 srv.tnc = conf->tnc;
1180 srv.ipv6 = conf->radius_server_ipv6;
1181 srv.get_eap_user = hostapd_radius_get_eap_user;
1183 hapd->radius_srv = radius_server_init(&srv);
1184 if (hapd->radius_srv == NULL) {
1185 printf("RADIUS server initialization failed.\n");
1194 * hostapd_setup_bss - Per-BSS setup (initialization)
1195 * @hapd: Pointer to BSS data
1196 * @first: Whether this BSS is the first BSS of an interface
1198 * This function is used to initialize all per-BSS data structures and
1199 * resources. This gets called in a loop for each BSS when an interface is
1200 * initialized. Most of the modules that are initialized here will be
1201 * deinitialized in hostapd_cleanup().
1203 static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
1205 struct hostapd_bss_config *conf = hapd->conf;
1206 u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
1207 int ssid_len, set_ssid;
1210 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
1211 /* Allocate the next available BSSID. */
1213 inc_byte_array(hapd->own_addr, ETH_ALEN);
1214 } while (mac_in_conf(hapd->iconf, hapd->own_addr));
1216 /* Allocate the configured BSSID. */
1217 os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
1219 if (hostapd_mac_comp(hapd->own_addr,
1220 hapd->iface->bss[0]->own_addr) ==
1222 printf("BSS '%s' may not have BSSID "
1223 "set to the MAC address of the radio\n",
1229 hapd->interface_added = 1;
1230 if (hostapd_bss_add(hapd->iface->bss[0], hapd->conf->iface,
1232 printf("Failed to add BSS (BSSID=" MACSTR ")\n",
1233 MAC2STR(hapd->own_addr));
1239 * Fetch the SSID from the system and use it or,
1240 * if one was specified in the config file, verify they
1243 ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
1245 printf("Could not read SSID from system\n");
1248 if (conf->ssid.ssid_set) {
1250 * If SSID is specified in the config file and it differs
1251 * from what is being used then force installation of the
1254 set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
1255 os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
1258 * No SSID in the config file; just use the one we got
1262 conf->ssid.ssid_len = ssid_len;
1263 os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
1264 conf->ssid.ssid[conf->ssid.ssid_len] = '\0';
1267 if (!hostapd_drv_none(hapd)) {
1268 printf("Using interface %s with hwaddr " MACSTR
1270 hapd->conf->iface, MAC2STR(hapd->own_addr),
1271 hapd->conf->ssid.ssid);
1274 if (hostapd_setup_wpa_psk(conf)) {
1275 printf("WPA-PSK setup failed.\n");
1279 /* Set flag for whether SSID is broadcast in beacons */
1280 if (hostapd_set_broadcast_ssid(hapd,
1281 !!hapd->conf->ignore_broadcast_ssid)) {
1282 printf("Could not set broadcast SSID flag for kernel "
1287 if (hostapd_set_dtim_period(hapd, hapd->conf->dtim_period)) {
1288 printf("Could not set DTIM period for kernel driver\n");
1292 /* Set SSID for the kernel driver (to be used in beacon and probe
1293 * response frames) */
1294 if (set_ssid && hostapd_set_ssid(hapd, (u8 *) conf->ssid.ssid,
1295 conf->ssid.ssid_len)) {
1296 printf("Could not set SSID for kernel driver\n");
1300 if (wpa_debug_level == MSG_MSGDUMP)
1301 conf->radius->msg_dumps = 1;
1302 hapd->radius = radius_client_init(hapd, conf->radius);
1303 if (hapd->radius == NULL) {
1304 printf("RADIUS client initialization failed.\n");
1308 if (hostapd_acl_init(hapd)) {
1309 printf("ACL initialization failed.\n");
1313 if (ieee802_1x_init(hapd)) {
1314 printf("IEEE 802.1X initialization failed.\n");
1318 if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
1321 if (accounting_init(hapd)) {
1322 printf("Accounting initialization failed.\n");
1326 if (hapd->conf->ieee802_11f &&
1327 (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
1328 printf("IEEE 802.11F (IAPP) initialization failed.\n");
1332 if (hostapd_ctrl_iface_init(hapd)) {
1333 printf("Failed to setup control interface\n");
1337 if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
1338 printf("VLAN initialization failed.\n");
1342 #ifdef CONFIG_IEEE80211R
1343 if (!hostapd_drv_none(hapd)) {
1344 hapd->l2 = l2_packet_init(hapd->conf->iface, NULL, ETH_P_RRB,
1345 hostapd_rrb_receive, hapd, 0);
1346 if (hapd->l2 == NULL &&
1347 (hapd->driver == NULL ||
1348 hapd->driver->send_ether == NULL)) {
1349 printf("Failed to open l2_packet interface\n");
1353 #endif /* CONFIG_IEEE80211R */
1355 ieee802_11_set_beacon(hapd);
1357 if (conf->radius_server_clients &&
1358 hostapd_setup_radius_srv(hapd, conf))
1366 * setup_interface2 - Setup (initialize) an interface (part 2)
1367 * @iface: Pointer to interface data.
1368 * Returns: 0 on success; -1 on failure.
1370 * Flushes old stations, sets the channel, DFS parameters, encryption,
1371 * beacons, and WDS links based on the configuration.
1373 static int setup_interface2(struct hostapd_iface *iface)
1375 struct hostapd_data *hapd = iface->bss[0];
1381 hostapd_flush_old_stations(hapd);
1382 hostapd_set_privacy(hapd, 0);
1384 if (hapd->iconf->channel) {
1385 freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
1386 printf("Mode: %s Channel: %d Frequency: %d MHz\n",
1387 hostapd_hw_mode_txt(hapd->iconf->hw_mode),
1388 hapd->iconf->channel, freq);
1390 if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq)) {
1391 printf("Could not set channel for kernel driver\n");
1396 hostapd_broadcast_wep_clear(hapd);
1397 if (hostapd_setup_encryption(hapd->conf->iface, hapd))
1400 hostapd_set_beacon_int(hapd, hapd->iconf->beacon_int);
1401 ieee802_11_set_beacon(hapd);
1403 if (hapd->iconf->rts_threshold > -1 &&
1404 hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
1405 printf("Could not set RTS threshold for kernel driver\n");
1409 if (hapd->iconf->fragm_threshold > -1 &&
1410 hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
1411 printf("Could not set fragmentation threshold for kernel "
1416 prev_addr = hapd->own_addr;
1418 for (j = 0; j < iface->num_bss; j++) {
1419 hapd = iface->bss[j];
1421 os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
1422 if (hostapd_setup_bss(hapd, j == 0))
1424 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
1425 prev_addr = hapd->own_addr;
1428 ap_list_init(iface);
1430 if (hostapd_driver_commit(hapd) < 0) {
1431 wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
1432 "configuration", __func__);
1440 static void setup_interface_start(void *eloop_data, void *user_ctx);
1441 static void setup_interface2_handler(void *eloop_data, void *user_ctx);
1444 * setup_interface_finalize - Finish setup interface & call the callback
1445 * @iface: Pointer to interface data.
1446 * @status: Status of the setup interface (0 on success; -1 on failure).
1447 * Returns: 0 on success; -1 on failure (e.g., was not in progress).
1449 static int setup_interface_finalize(struct hostapd_iface *iface, int status)
1451 hostapd_iface_cb cb;
1453 if (!iface->setup_cb)
1456 eloop_cancel_timeout(setup_interface_start, iface, NULL);
1457 eloop_cancel_timeout(setup_interface2_handler, iface, NULL);
1458 hostapd_select_hw_mode_stop(iface);
1460 cb = iface->setup_cb;
1462 iface->setup_cb = NULL;
1471 * setup_interface2_wrapper - Wrapper for setup_interface2()
1472 * @iface: Pointer to interface data.
1473 * @status: Status of the hw mode select.
1475 * Wrapper for setup_interface2() to calls finalize function upon completion.
1477 static void setup_interface2_wrapper(struct hostapd_iface *iface, int status)
1481 printf("Could not select hw_mode and channel. (%d)\n", ret);
1483 ret = setup_interface2(iface);
1485 setup_interface_finalize(iface, ret);
1490 * setup_interface2_handler - Used for immediate call of setup_interface2
1491 * @eloop_data: Stores the struct hostapd_iface * for the interface.
1492 * @user_ctx: Unused.
1494 static void setup_interface2_handler(void *eloop_data, void *user_ctx)
1496 struct hostapd_iface *iface = eloop_data;
1498 setup_interface2_wrapper(iface, 0);
1502 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
1503 size_t identity_len, int phase2,
1504 struct eap_user *user)
1506 const struct hostapd_eap_user *eap_user;
1509 eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
1510 if (eap_user == NULL)
1516 os_memset(user, 0, sizeof(*user));
1517 count = EAP_USER_MAX_METHODS;
1518 if (count > EAP_MAX_METHODS)
1519 count = EAP_MAX_METHODS;
1520 for (i = 0; i < count; i++) {
1521 user->methods[i].vendor = eap_user->methods[i].vendor;
1522 user->methods[i].method = eap_user->methods[i].method;
1525 if (eap_user->password) {
1526 user->password = os_malloc(eap_user->password_len);
1527 if (user->password == NULL)
1529 os_memcpy(user->password, eap_user->password,
1530 eap_user->password_len);
1531 user->password_len = eap_user->password_len;
1532 user->password_hash = eap_user->password_hash;
1534 user->force_version = eap_user->force_version;
1535 user->ttls_auth = eap_user->ttls_auth;
1542 * setup_interface1 - Setup (initialize) an interface (part 1)
1543 * @iface: Pointer to interface data
1544 * Returns: 0 on success, -1 on failure
1546 * Initializes the driver interface, validates the configuration,
1547 * and sets driver parameters based on the configuration.
1548 * Schedules setup_interface2() to be called immediately or after
1549 * hardware mode setup takes place.
1551 static int setup_interface1(struct hostapd_iface *iface)
1553 struct hostapd_data *hapd = iface->bss[0];
1554 struct hostapd_bss_config *conf = hapd->conf;
1557 u8 *b = conf->bssid;
1560 * Initialize the driver interface and make sure that all BSSes get
1561 * configured with a pointer to this driver interface.
1563 if (b[0] | b[1] | b[2] | b[3] | b[4] | b[5]) {
1564 hapd->drv_priv = hostapd_driver_init_bssid(hapd, b);
1566 hapd->drv_priv = hostapd_driver_init(hapd);
1569 if (hapd->drv_priv == NULL) {
1570 printf("%s driver initialization failed.\n",
1571 hapd->driver ? hapd->driver->name : "Unknown");
1572 hapd->driver = NULL;
1575 for (i = 0; i < iface->num_bss; i++) {
1576 iface->bss[i]->driver = hapd->driver;
1577 iface->bss[i]->drv_priv = hapd->drv_priv;
1580 if (hostapd_validate_bssid_configuration(iface))
1583 #ifdef CONFIG_IEEE80211N
1584 SET_2BIT_LE16(&iface->ht_op_mode,
1585 HT_INFO_OPERATION_MODE_OP_MODE_OFFSET,
1587 #endif /* CONFIG_IEEE80211N */
1589 os_memcpy(country, hapd->iconf->country, 3);
1591 if (hostapd_set_country(hapd, country) < 0) {
1592 printf("Failed to set country code\n");
1596 if (hapd->iconf->ieee80211d || hapd->iconf->ieee80211h) {
1597 if (hostapd_set_ieee80211d(hapd, 1) < 0) {
1598 printf("Failed to set ieee80211d (%d)\n",
1599 hapd->iconf->ieee80211d);
1604 if (hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
1605 hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets)) {
1606 printf("Failed to set bridge_packets for kernel driver\n");
1610 /* TODO: merge with hostapd_driver_init() ? */
1611 if (hostapd_wireless_event_init(hapd) < 0)
1614 if (hostapd_get_hw_features(iface)) {
1615 /* Not all drivers support this yet, so continue without hw
1618 return hostapd_select_hw_mode_start(iface,
1619 setup_interface2_wrapper);
1622 eloop_register_timeout(0, 0, setup_interface2_handler, iface, NULL);
1628 * setup_interface_start - Handler to start setup interface
1629 * @eloop_data: Stores the struct hostapd_iface * for the interface.
1630 * @user_ctx: Unused.
1632 * An eloop handler is used so that all errors can be processed by the
1633 * callback without introducing stack recursion.
1635 static void setup_interface_start(void *eloop_data, void *user_ctx)
1637 struct hostapd_iface *iface = eloop_data;
1641 ret = setup_interface1(iface);
1643 setup_interface_finalize(iface, ret);
1648 * hostapd_setup_interface_start - Start the setup of an interface
1649 * @iface: Pointer to interface data.
1650 * @cb: The function to callback when done.
1651 * Returns: 0 if it starts successfully; cb will be called when done.
1652 * -1 on failure; cb will not be called.
1654 * Initializes the driver interface, validates the configuration,
1655 * and sets driver parameters based on the configuration.
1656 * Flushes old stations, sets the channel, DFS parameters, encryption,
1657 * beacons, and WDS links based on the configuration.
1659 int hostapd_setup_interface_start(struct hostapd_iface *iface,
1660 hostapd_iface_cb cb)
1662 if (iface->setup_cb) {
1663 wpa_printf(MSG_DEBUG,
1664 "%s: Interface setup already in progress.\n",
1665 iface->bss[0]->conf->iface);
1669 iface->setup_cb = cb;
1671 eloop_register_timeout(0, 0, setup_interface_start, iface, NULL);
1678 * hostapd_setup_interace_stop - Stops the setup of an interface
1679 * @iface: Pointer to interface data
1680 * Returns: 0 if successfully stopped;
1681 * -1 on failure (i.e., was not in progress)
1683 int hostapd_setup_interface_stop(struct hostapd_iface *iface)
1685 return setup_interface_finalize(iface, -1);
1689 static void show_version(void)
1692 "hostapd v" VERSION_STR "\n"
1693 "User space daemon for IEEE 802.11 AP management,\n"
1694 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
1695 "Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi> "
1696 "and contributors\n");
1700 static void usage(void)
1705 "usage: hostapd [-hdBKtv] [-P <PID file>] "
1706 "<configuration file(s)>\n"
1709 " -h show this usage\n"
1710 " -d show more debug messages (-dd for even more)\n"
1711 " -B run daemon in the background\n"
1713 " -K include key data in debug messages\n"
1714 " -t include timestamps in some debug messages\n"
1715 " -v show hostapd version\n");
1722 * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
1723 * @hapd_iface: Pointer to interface data
1724 * @conf: Pointer to per-interface configuration
1725 * @bss: Pointer to per-BSS configuration for this BSS
1726 * Returns: Pointer to allocated BSS data
1728 * This function is used to allocate per-BSS data structure. This data will be
1729 * freed after hostapd_cleanup() is called for it during interface
1732 static struct hostapd_data *
1733 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
1734 struct hostapd_config *conf,
1735 struct hostapd_bss_config *bss)
1737 struct hostapd_data *hapd;
1739 hapd = os_zalloc(sizeof(*hapd));
1745 hapd->iface = hapd_iface;
1747 if (hapd->conf->individual_wep_key_len > 0) {
1748 /* use key0 in individual key and key1 in broadcast key */
1749 hapd->default_wep_key_idx = 1;
1752 #ifdef EAP_TLS_FUNCS
1753 if (hapd->conf->eap_server &&
1754 (hapd->conf->ca_cert || hapd->conf->server_cert ||
1755 hapd->conf->dh_file)) {
1756 struct tls_connection_params params;
1758 hapd->ssl_ctx = tls_init(NULL);
1759 if (hapd->ssl_ctx == NULL) {
1760 printf("Failed to initialize TLS\n");
1764 os_memset(¶ms, 0, sizeof(params));
1765 params.ca_cert = hapd->conf->ca_cert;
1766 params.client_cert = hapd->conf->server_cert;
1767 params.private_key = hapd->conf->private_key;
1768 params.private_key_passwd = hapd->conf->private_key_passwd;
1769 params.dh_file = hapd->conf->dh_file;
1771 if (tls_global_set_params(hapd->ssl_ctx, ¶ms)) {
1772 printf("Failed to set TLS parameters\n");
1776 if (tls_global_set_verify(hapd->ssl_ctx,
1777 hapd->conf->check_crl)) {
1778 printf("Failed to enable check_crl\n");
1782 #endif /* EAP_TLS_FUNCS */
1785 if (hapd->conf->eap_sim_db) {
1786 hapd->eap_sim_db_priv =
1787 eap_sim_db_init(hapd->conf->eap_sim_db,
1788 hostapd_sim_db_cb, hapd);
1789 if (hapd->eap_sim_db_priv == NULL) {
1790 printf("Failed to initialize EAP-SIM database "
1795 #endif /* EAP_SERVER */
1797 if (hapd->conf->assoc_ap)
1798 hapd->assoc_ap_state = WAIT_BEACON;
1800 hapd->driver = hapd->iconf->driver;
1804 #if defined(EAP_TLS_FUNCS) || defined(EAP_SERVER)
1807 /* TODO: cleanup allocated resources(?) */
1814 * hostapd_init - Allocate and initialize per-interface data
1815 * @config_file: Path to the configuration file
1816 * Returns: Pointer to the allocated interface data or %NULL on failure
1818 * This function is used to allocate main data structures for per-interface
1819 * data. The allocated data buffer will be freed by calling
1820 * hostapd_cleanup_iface().
1822 static struct hostapd_iface * hostapd_init(const char *config_file)
1824 struct hostapd_iface *hapd_iface = NULL;
1825 struct hostapd_config *conf = NULL;
1826 struct hostapd_data *hapd;
1829 hapd_iface = os_zalloc(sizeof(*hapd_iface));
1830 if (hapd_iface == NULL)
1833 hapd_iface->config_fname = os_strdup(config_file);
1834 if (hapd_iface->config_fname == NULL)
1837 conf = hostapd_config_read(hapd_iface->config_fname);
1840 hapd_iface->conf = conf;
1842 hapd_iface->num_bss = conf->num_bss;
1843 hapd_iface->bss = os_zalloc(conf->num_bss *
1844 sizeof(struct hostapd_data *));
1845 if (hapd_iface->bss == NULL)
1848 for (i = 0; i < conf->num_bss; i++) {
1849 hapd = hapd_iface->bss[i] =
1850 hostapd_alloc_bss_data(hapd_iface, conf,
1860 hostapd_config_free(conf);
1862 for (i = 0; hapd_iface->bss && i < hapd_iface->num_bss; i++) {
1863 hapd = hapd_iface->bss[i];
1864 if (hapd && hapd->ssl_ctx)
1865 tls_deinit(hapd->ssl_ctx);
1868 os_free(hapd_iface->config_fname);
1869 os_free(hapd_iface->bss);
1870 os_free(hapd_iface);
1877 * register_drivers - Register driver interfaces
1879 * This function is generated by Makefile (into driver_conf.c) to call all
1880 * configured driver interfaces to register them to core hostapd.
1882 void register_drivers(void);
1886 * setup_interface_done - Callback when an interface is done being setup.
1887 * @iface: Pointer to interface data.
1888 * @status: Status of the interface setup (0 on success; -1 on failure).
1890 static void setup_interface_done(struct hostapd_iface *iface, int status)
1893 wpa_printf(MSG_DEBUG, "%s: Unable to setup interface.",
1894 iface->bss[0]->conf->iface);
1896 } else if (!hostapd_drv_none(iface->bss[0]))
1897 wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
1898 iface->bss[0]->conf->iface);
1902 int main(int argc, char *argv[])
1904 struct hapd_interfaces interfaces;
1907 int c, debug = 0, daemonize = 0, tnc = 0;
1908 const char *pid_file = NULL;
1910 hostapd_logger_register_cb(hostapd_logger_cb);
1913 c = getopt(argc, argv, "BdhKP:tv");
1922 if (wpa_debug_level > 0)
1929 wpa_debug_show_keys++;
1935 wpa_debug_timestamp++;
1951 if (eap_server_register_methods()) {
1952 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1956 interfaces.count = argc - optind;
1958 interfaces.iface = os_malloc(interfaces.count *
1959 sizeof(struct hostapd_iface *));
1960 if (interfaces.iface == NULL) {
1961 wpa_printf(MSG_ERROR, "malloc failed\n");
1965 if (eloop_init(&interfaces)) {
1966 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1970 #ifndef CONFIG_NATIVE_WINDOWS
1971 eloop_register_signal(SIGHUP, handle_reload, NULL);
1972 eloop_register_signal(SIGUSR1, handle_dump_state, NULL);
1973 #endif /* CONFIG_NATIVE_WINDOWS */
1974 eloop_register_signal_terminate(handle_term, NULL);
1976 /* Initialize interfaces */
1977 for (i = 0; i < interfaces.count; i++) {
1978 printf("Configuration file: %s\n", argv[optind + i]);
1979 interfaces.iface[i] = hostapd_init(argv[optind + i]);
1980 if (!interfaces.iface[i])
1982 for (k = 0; k < debug; k++) {
1983 if (interfaces.iface[i]->bss[0]->conf->
1984 logger_stdout_level > 0)
1985 interfaces.iface[i]->bss[0]->conf->
1986 logger_stdout_level--;
1989 ret = hostapd_setup_interface_start(interfaces.iface[i],
1990 setup_interface_done);
1994 for (k = 0; k < (int) interfaces.iface[i]->num_bss; k++) {
1995 if (interfaces.iface[i]->bss[0]->conf->tnc)
2001 if (tnc && tncs_global_init() < 0) {
2002 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
2005 #endif /* EAP_TNC */
2007 if (daemonize && os_daemonize(pid_file)) {
2012 #ifndef CONFIG_NATIVE_WINDOWS
2013 openlog("hostapd", 0, LOG_DAEMON);
2014 #endif /* CONFIG_NATIVE_WINDOWS */
2018 /* Disconnect associated stations from all interfaces and BSSes */
2019 for (i = 0; i < interfaces.count; i++) {
2020 for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
2021 struct hostapd_data *hapd =
2022 interfaces.iface[i]->bss[j];
2023 hostapd_free_stas(hapd);
2024 hostapd_flush_old_stations(hapd);
2031 /* Deinitialize all interfaces */
2032 for (i = 0; i < interfaces.count; i++) {
2033 if (!interfaces.iface[i])
2035 hostapd_setup_interface_stop(interfaces.iface[i]);
2036 hostapd_cleanup_iface_pre(interfaces.iface[i]);
2037 for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
2038 struct hostapd_data *hapd =
2039 interfaces.iface[i]->bss[j];
2040 hostapd_cleanup(hapd);
2041 if (j == interfaces.iface[i]->num_bss - 1 &&
2043 hostapd_driver_deinit(hapd);
2045 for (j = 0; j < interfaces.iface[i]->num_bss; j++)
2046 os_free(interfaces.iface[i]->bss[j]);
2047 hostapd_cleanup_iface(interfaces.iface[i]);
2049 os_free(interfaces.iface);
2052 tncs_global_deinit();
2053 #endif /* EAP_TNC */
2057 #ifndef CONFIG_NATIVE_WINDOWS
2059 #endif /* CONFIG_NATIVE_WINDOWS */
2061 eap_server_unregister_methods();
2063 os_daemonize_terminate(pid_file);