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.
16 #ifndef CONFIG_NATIVE_WINDOWS
18 #endif /* CONFIG_NATIVE_WINDOWS */
22 #include "ieee802_1x.h"
24 #include "hw_features.h"
25 #include "accounting.h"
28 #include "ieee802_11_defs.h"
29 #include "ieee802_11_auth.h"
33 #include "radius/radius_client.h"
34 #include "radius/radius_server.h"
37 #include "vlan_init.h"
38 #include "ctrl_iface.h"
40 #include "eap_server/eap_sim_db.h"
41 #include "eap_server/eap.h"
42 #include "eap_server/tncs.h"
44 #include "l2_packet/l2_packet.h"
45 #include "wps_hostapd.h"
46 #include "tkip_countermeasures.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);
52 static int hostapd_flush_old_stations(struct hostapd_data *hapd);
53 static int hostapd_setup_wpa(struct hostapd_data *hapd);
54 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd);
56 struct hapd_interfaces {
58 struct hostapd_iface **iface;
62 extern int wpa_debug_level;
63 extern int wpa_debug_show_keys;
64 extern int wpa_debug_timestamp;
67 int hostapd_for_each_interface(int (*cb)(struct hostapd_iface *iface,
68 void *ctx), void *ctx)
70 struct hapd_interfaces *interfaces = eloop_get_user_data();
74 for (i = 0; i < interfaces->count; i++) {
75 ret = cb(interfaces->iface[i], ctx);
84 #ifndef CONFIG_NO_HOSTAPD_LOGGER
85 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
86 int level, const char *txt, size_t len)
88 struct hostapd_data *hapd = ctx;
89 char *format, *module_str;
91 int conf_syslog_level, conf_stdout_level;
92 unsigned int conf_syslog, conf_stdout;
95 format = os_malloc(maxlen);
99 if (hapd && hapd->conf) {
100 conf_syslog_level = hapd->conf->logger_syslog_level;
101 conf_stdout_level = hapd->conf->logger_stdout_level;
102 conf_syslog = hapd->conf->logger_syslog;
103 conf_stdout = hapd->conf->logger_stdout;
105 conf_syslog_level = conf_stdout_level = 0;
106 conf_syslog = conf_stdout = (unsigned int) -1;
110 case HOSTAPD_MODULE_IEEE80211:
111 module_str = "IEEE 802.11";
113 case HOSTAPD_MODULE_IEEE8021X:
114 module_str = "IEEE 802.1X";
116 case HOSTAPD_MODULE_RADIUS:
117 module_str = "RADIUS";
119 case HOSTAPD_MODULE_WPA:
122 case HOSTAPD_MODULE_DRIVER:
123 module_str = "DRIVER";
125 case HOSTAPD_MODULE_IAPP:
128 case HOSTAPD_MODULE_MLME:
136 if (hapd && hapd->conf && addr)
137 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
138 hapd->conf->iface, MAC2STR(addr),
139 module_str ? " " : "", module_str, txt);
140 else if (hapd && hapd->conf)
141 os_snprintf(format, maxlen, "%s:%s%s %s",
142 hapd->conf->iface, module_str ? " " : "",
145 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
146 MAC2STR(addr), module_str ? " " : "",
149 os_snprintf(format, maxlen, "%s%s%s",
150 module_str, module_str ? ": " : "", txt);
152 if ((conf_stdout & module) && level >= conf_stdout_level) {
153 wpa_debug_print_timestamp();
154 printf("%s\n", format);
157 #ifndef CONFIG_NATIVE_WINDOWS
158 if ((conf_syslog & module) && level >= conf_syslog_level) {
161 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
162 case HOSTAPD_LEVEL_DEBUG:
163 priority = LOG_DEBUG;
165 case HOSTAPD_LEVEL_INFO:
168 case HOSTAPD_LEVEL_NOTICE:
169 priority = LOG_NOTICE;
171 case HOSTAPD_LEVEL_WARNING:
172 priority = LOG_WARNING;
178 syslog(priority, "%s", format);
180 #endif /* CONFIG_NATIVE_WINDOWS */
184 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
188 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
189 struct sta_info *sta, void *ctx)
191 if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
197 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
199 struct hostapd_data *hapd = ctx;
200 if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0)
201 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
203 #endif /* EAP_SERVER */
207 * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
209 static void handle_term(int sig, void *eloop_ctx, void *signal_ctx)
211 wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
216 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
217 struct wpa_auth_config *wconf)
219 wconf->wpa = conf->wpa;
220 wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
221 wconf->wpa_pairwise = conf->wpa_pairwise;
222 wconf->wpa_group = conf->wpa_group;
223 wconf->wpa_group_rekey = conf->wpa_group_rekey;
224 wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
225 wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
226 wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
227 wconf->rsn_pairwise = conf->rsn_pairwise;
228 wconf->rsn_preauth = conf->rsn_preauth;
229 wconf->eapol_version = conf->eapol_version;
230 wconf->peerkey = conf->peerkey;
231 wconf->wmm_enabled = conf->wmm_enabled;
232 wconf->okc = conf->okc;
233 #ifdef CONFIG_IEEE80211W
234 wconf->ieee80211w = conf->ieee80211w;
235 #endif /* CONFIG_IEEE80211W */
236 #ifdef CONFIG_IEEE80211R
237 wconf->ssid_len = conf->ssid.ssid_len;
238 if (wconf->ssid_len > SSID_LEN)
239 wconf->ssid_len = SSID_LEN;
240 os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
241 os_memcpy(wconf->mobility_domain, conf->mobility_domain,
242 MOBILITY_DOMAIN_ID_LEN);
243 if (conf->nas_identifier &&
244 os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
245 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
246 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
247 wconf->r0_key_holder_len);
249 os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
250 wconf->r0_key_lifetime = conf->r0_key_lifetime;
251 wconf->reassociation_deadline = conf->reassociation_deadline;
252 wconf->r0kh_list = conf->r0kh_list;
253 wconf->r1kh_list = conf->r1kh_list;
254 wconf->pmk_r1_push = conf->pmk_r1_push;
255 #endif /* CONFIG_IEEE80211R */
259 int hostapd_reload_config(struct hostapd_iface *iface)
261 struct hostapd_data *hapd = iface->bss[0];
262 struct hostapd_config *newconf, *oldconf;
263 struct wpa_auth_config wpa_auth_conf;
265 newconf = hostapd_config_read(iface->config_fname);
270 * Deauthenticate all stations since the new configuration may not
271 * allow them to use the BSS anymore.
273 hostapd_flush_old_stations(hapd);
275 /* TODO: update dynamic data based on changed configuration
276 * items (e.g., open/close sockets, etc.) */
277 radius_client_flush(hapd->radius, 0);
279 oldconf = hapd->iconf;
280 hapd->iconf = newconf;
281 hapd->conf = &newconf->bss[0];
282 iface->conf = newconf;
284 if (hostapd_setup_wpa_psk(hapd->conf)) {
285 wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
286 "after reloading configuration");
289 if (hapd->conf->wpa && hapd->wpa_auth == NULL)
290 hostapd_setup_wpa(hapd);
291 else if (hapd->conf->wpa) {
292 hostapd_wpa_auth_conf(&newconf->bss[0], &wpa_auth_conf);
293 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
294 } else if (hapd->wpa_auth) {
295 wpa_deinit(hapd->wpa_auth);
296 hapd->wpa_auth = NULL;
297 hostapd_set_privacy(hapd, 0);
298 hostapd_setup_encryption(hapd->conf->iface, hapd);
301 ieee802_11_set_beacon(hapd);
303 hostapd_config_free(oldconf);
305 wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
311 #ifndef CONFIG_NATIVE_WINDOWS
313 * handle_reload - SIGHUP handler to reload configuration
315 static void handle_reload(int sig, void *eloop_ctx, void *signal_ctx)
317 struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
320 wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
323 for (i = 0; i < hapds->count; i++) {
324 if (hostapd_reload_config(hapds->iface[i]) < 0) {
325 wpa_printf(MSG_WARNING, "Failed to read new "
326 "configuration file - continuing with "
334 #ifdef HOSTAPD_DUMP_STATE
336 * hostapd_dump_state - SIGUSR1 handler to dump hostapd state to a text file
338 static void hostapd_dump_state(struct hostapd_data *hapd)
342 struct sta_info *sta;
346 if (!hapd->conf->dump_log_name) {
347 wpa_printf(MSG_DEBUG, "Dump file not defined - ignoring dump "
352 wpa_printf(MSG_DEBUG, "Dumping hostapd state to '%s'",
353 hapd->conf->dump_log_name);
354 f = fopen(hapd->conf->dump_log_name, "w");
356 wpa_printf(MSG_WARNING, "Could not open dump file '%s' for "
357 "writing.", hapd->conf->dump_log_name);
362 fprintf(f, "hostapd state dump - %s", ctime(&now));
363 fprintf(f, "num_sta=%d num_sta_non_erp=%d "
364 "num_sta_no_short_slot_time=%d\n"
365 "num_sta_no_short_preamble=%d\n",
366 hapd->num_sta, hapd->iface->num_sta_non_erp,
367 hapd->iface->num_sta_no_short_slot_time,
368 hapd->iface->num_sta_no_short_preamble);
370 for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
371 fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
374 " AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
375 " capability=0x%x listen_interval=%d\n",
378 (sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
379 (sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
380 (sta->flags & WLAN_STA_PS ? "[PS]" : ""),
381 (sta->flags & WLAN_STA_TIM ? "[TIM]" : ""),
382 (sta->flags & WLAN_STA_PERM ? "[PERM]" : ""),
383 (sta->flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" :
385 (sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
387 (sta->flags & WLAN_STA_SHORT_PREAMBLE ?
388 "[SHORT_PREAMBLE]" : ""),
389 (sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
390 (sta->flags & WLAN_STA_WMM ? "[WMM]" : ""),
391 (sta->flags & WLAN_STA_MFP ? "[MFP]" : ""),
392 (sta->flags & WLAN_STA_WPS ? "[WPS]" : ""),
393 (sta->flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
394 (sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
396 sta->listen_interval);
398 fprintf(f, " supported_rates=");
399 for (i = 0; i < sta->supported_rates_len; i++)
400 fprintf(f, "%02x ", sta->supported_rates[i]);
404 " timeout_next=%s\n",
405 (sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" :
406 (sta->timeout_next == STA_DISASSOC ? "DISASSOC" :
409 ieee802_1x_dump_state(f, " ", sta);
412 buf = os_malloc(4096);
414 int count = radius_client_get_mib(hapd->radius, buf, 4096);
417 else if (count > 4095)
420 fprintf(f, "%s", buf);
422 count = radius_server_get_mib(hapd->radius_srv, buf, 4096);
425 else if (count > 4095)
428 fprintf(f, "%s", buf);
433 #endif /* HOSTAPD_DUMP_STATE */
436 static void handle_dump_state(int sig, void *eloop_ctx, void *signal_ctx)
438 #ifdef HOSTAPD_DUMP_STATE
439 struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
442 for (i = 0; i < hapds->count; i++) {
443 struct hostapd_iface *hapd_iface = hapds->iface[i];
444 for (j = 0; j < hapd_iface->num_bss; j++)
445 hostapd_dump_state(hapd_iface->bss[j]);
447 #endif /* HOSTAPD_DUMP_STATE */
449 #endif /* CONFIG_NATIVE_WINDOWS */
451 static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
456 for (i = 0; i < NUM_WEP_KEYS; i++) {
457 if (hostapd_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,
458 i == 0 ? 1 : 0, NULL, 0, NULL, 0)) {
459 wpa_printf(MSG_DEBUG, "Failed to clear default "
460 "encryption keys (ifname=%s keyidx=%d)",
464 #ifdef CONFIG_IEEE80211W
465 if (hapd->conf->ieee80211w) {
466 for (i = NUM_WEP_KEYS; i < NUM_WEP_KEYS + 2; i++) {
467 if (hostapd_set_key(ifname, hapd, WPA_ALG_NONE, NULL,
468 i, i == 0 ? 1 : 0, NULL, 0,
470 wpa_printf(MSG_DEBUG, "Failed to clear "
471 "default mgmt encryption keys "
472 "(ifname=%s keyidx=%d)", ifname, i);
476 #endif /* CONFIG_IEEE80211W */
480 static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
482 hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
487 static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
490 struct hostapd_ssid *ssid = &hapd->conf->ssid;
493 if (ssid->wep.default_len &&
494 hostapd_set_key(hapd->conf->iface,
495 hapd, WPA_ALG_WEP, NULL, idx, idx == ssid->wep.idx,
496 NULL, 0, ssid->wep.key[idx], ssid->wep.len[idx])) {
497 wpa_printf(MSG_WARNING, "Could not set WEP encryption.");
501 if (ssid->dyn_vlan_keys) {
503 for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
505 struct hostapd_wep_keys *key = ssid->dyn_vlan_keys[i];
508 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan,
514 if (hostapd_set_key(ifname, hapd, WPA_ALG_WEP, NULL,
515 idx, idx == key->idx, NULL, 0,
516 key->key[idx], key->len[idx])) {
517 wpa_printf(MSG_WARNING, "Could not set "
518 "dynamic VLAN WEP encryption.");
528 * hostapd_cleanup - Per-BSS cleanup (deinitialization)
529 * @hapd: Pointer to BSS data
531 * This function is used to free all per-BSS data structures and resources.
532 * This gets called in a loop for each BSS between calls to
533 * hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
534 * is deinitialized. Most of the modules that are initialized in
535 * hostapd_setup_bss() are deinitialized here.
537 static void hostapd_cleanup(struct hostapd_data *hapd)
539 hostapd_ctrl_iface_deinit(hapd);
541 os_free(hapd->default_wep_key);
542 hapd->default_wep_key = NULL;
543 iapp_deinit(hapd->iapp);
545 accounting_deinit(hapd);
546 rsn_preauth_iface_deinit(hapd);
547 if (hapd->wpa_auth) {
548 wpa_deinit(hapd->wpa_auth);
549 hapd->wpa_auth = NULL;
551 if (hostapd_set_privacy(hapd, 0)) {
552 wpa_printf(MSG_DEBUG, "Could not disable "
553 "PrivacyInvoked for interface %s",
557 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
558 wpa_printf(MSG_DEBUG, "Could not remove generic "
559 "information element from interface %s",
563 ieee802_1x_deinit(hapd);
565 hostapd_acl_deinit(hapd);
566 radius_client_deinit(hapd->radius);
568 radius_server_deinit(hapd->radius_srv);
569 hapd->radius_srv = NULL;
571 #ifdef CONFIG_IEEE80211R
572 l2_packet_deinit(hapd->l2);
573 #endif /* CONFIG_IEEE80211R */
575 hostapd_deinit_wps(hapd);
577 hostapd_wireless_event_deinit(hapd);
581 tls_deinit(hapd->ssl_ctx);
582 hapd->ssl_ctx = NULL;
584 #endif /* EAP_TLS_FUNCS */
587 if (hapd->eap_sim_db_priv) {
588 eap_sim_db_deinit(hapd->eap_sim_db_priv);
589 hapd->eap_sim_db_priv = NULL;
591 #endif /* EAP_SERVER */
593 if (hapd->interface_added &&
594 hostapd_bss_remove(hapd, hapd->conf->iface)) {
595 wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s",
602 * hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
603 * @iface: Pointer to interface data
605 * This function is called before per-BSS data structures are deinitialized
606 * with hostapd_cleanup().
608 static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
614 * hostapd_cleanup_iface - Complete per-interface cleanup
615 * @iface: Pointer to interface data
617 * This function is called after per-BSS data structures are deinitialized
618 * with hostapd_cleanup().
620 static void hostapd_cleanup_iface(struct hostapd_iface *iface)
622 hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
623 iface->hw_features = NULL;
624 os_free(iface->current_rates);
625 iface->current_rates = NULL;
626 ap_list_deinit(iface);
627 hostapd_config_free(iface->conf);
630 os_free(iface->config_fname);
636 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
640 hostapd_broadcast_wep_set(hapd);
642 if (hapd->conf->ssid.wep.default_len)
645 for (i = 0; i < 4; i++) {
646 if (hapd->conf->ssid.wep.key[i] &&
647 hostapd_set_key(iface, hapd, WPA_ALG_WEP, NULL, i,
648 i == hapd->conf->ssid.wep.idx, NULL, 0,
649 hapd->conf->ssid.wep.key[i],
650 hapd->conf->ssid.wep.len[i])) {
651 wpa_printf(MSG_WARNING, "Could not set WEP "
655 if (hapd->conf->ssid.wep.key[i] &&
656 i == hapd->conf->ssid.wep.idx)
657 hostapd_set_privacy(hapd, 1);
664 static int hostapd_flush_old_stations(struct hostapd_data *hapd)
668 if (hostapd_drv_none(hapd))
671 wpa_printf(MSG_DEBUG, "Flushing old station entries");
672 if (hostapd_flush(hapd)) {
673 wpa_printf(MSG_WARNING, "Could not connect to kernel driver.");
676 wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
678 /* New Prism2.5/3 STA firmware versions seem to have issues with this
679 * broadcast deauth frame. This gets the firmware in odd state where
680 * nothing works correctly, so let's skip sending this for the hostap
682 if (hapd->driver && os_strcmp(hapd->driver->name, "hostap") != 0) {
684 os_memset(addr, 0xff, ETH_ALEN);
685 hostapd_sta_deauth(hapd, addr,
686 WLAN_REASON_PREV_AUTH_NOT_VALID);
693 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
694 logger_level level, const char *txt)
696 #ifndef CONFIG_NO_HOSTAPD_LOGGER
697 struct hostapd_data *hapd = ctx;
702 hlevel = HOSTAPD_LEVEL_WARNING;
705 hlevel = HOSTAPD_LEVEL_INFO;
709 hlevel = HOSTAPD_LEVEL_DEBUG;
713 hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
714 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
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 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, wpa_alg 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_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
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;
1013 if (hostapd_drv_none(hapd))
1016 /* Generate BSSID mask that is large enough to cover the BSSIDs. */
1018 /* Determine the bits necessary to cover the number of BSSIDs. */
1019 for (i--; i; i >>= 1)
1022 /* Determine the bits necessary to any configured BSSIDs,
1023 if they are higher than the number of BSSIDs. */
1024 for (j = 0; j < iface->conf->num_bss; j++) {
1025 if (hostapd_mac_comp_empty(iface->conf->bss[j].bssid) == 0) {
1031 for (i = 0; i < ETH_ALEN; i++) {
1033 iface->conf->bss[j].bssid[i] ^
1041 for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
1047 while (mask[i] != 0) {
1057 wpa_printf(MSG_ERROR, "Too many bits in the BSSID mask (%u)",
1062 os_memset(mask, 0xff, ETH_ALEN);
1064 for (i = 5; i > 5 - j; i--)
1071 wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
1072 (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
1074 res = hostapd_valid_bss_mask(hapd, hapd->own_addr, mask);
1079 wpa_printf(MSG_ERROR, "Driver did not accept BSSID mask "
1080 MACSTR " for start address " MACSTR ".",
1081 MAC2STR(mask), MAC2STR(hapd->own_addr));
1088 for (i = 0; i < ETH_ALEN; i++) {
1089 if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
1090 wpa_printf(MSG_ERROR, "Invalid BSSID mask " MACSTR
1091 " for start address " MACSTR ".",
1092 MAC2STR(mask), MAC2STR(hapd->own_addr));
1093 wpa_printf(MSG_ERROR, "Start address must be the "
1094 "first address in the block (i.e., addr "
1095 "AND mask == addr).");
1104 static int mac_in_conf(struct hostapd_config *conf, const void *a)
1108 for (i = 0; i < conf->num_bss; i++) {
1109 if (hostapd_mac_comp(conf->bss[i].bssid, a) == 0) {
1118 static int hostapd_setup_wpa(struct hostapd_data *hapd)
1120 struct wpa_auth_config _conf;
1121 struct wpa_auth_callbacks cb;
1125 hostapd_wpa_auth_conf(hapd->conf, &_conf);
1126 os_memset(&cb, 0, sizeof(cb));
1128 cb.logger = hostapd_wpa_auth_logger;
1129 cb.disconnect = hostapd_wpa_auth_disconnect;
1130 cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
1131 cb.set_eapol = hostapd_wpa_auth_set_eapol;
1132 cb.get_eapol = hostapd_wpa_auth_get_eapol;
1133 cb.get_psk = hostapd_wpa_auth_get_psk;
1134 cb.get_msk = hostapd_wpa_auth_get_msk;
1135 cb.set_key = hostapd_wpa_auth_set_key;
1136 cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
1137 cb.get_seqnum_igtk = hostapd_wpa_auth_get_seqnum_igtk;
1138 cb.send_eapol = hostapd_wpa_auth_send_eapol;
1139 cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
1140 cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
1141 cb.send_ether = hostapd_wpa_auth_send_ether;
1142 #ifdef CONFIG_IEEE80211R
1143 cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
1144 cb.add_sta = hostapd_wpa_auth_add_sta;
1145 #endif /* CONFIG_IEEE80211R */
1146 hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
1147 if (hapd->wpa_auth == NULL) {
1148 wpa_printf(MSG_ERROR, "WPA initialization failed.");
1152 if (hostapd_set_privacy(hapd, 1)) {
1153 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
1154 "for interface %s", hapd->conf->iface);
1158 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
1159 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
1160 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
1161 "the kernel driver.");
1165 if (rsn_preauth_iface_init(hapd)) {
1166 wpa_printf(MSG_ERROR, "Initialization of RSN "
1167 "pre-authentication failed.");
1176 static int hostapd_setup_radius_srv(struct hostapd_data *hapd,
1177 struct hostapd_bss_config *conf)
1179 struct radius_server_conf srv;
1180 os_memset(&srv, 0, sizeof(srv));
1181 srv.client_file = conf->radius_server_clients;
1182 srv.auth_port = conf->radius_server_auth_port;
1183 srv.conf_ctx = conf;
1184 srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
1185 srv.ssl_ctx = hapd->ssl_ctx;
1186 srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
1187 srv.eap_fast_a_id = conf->eap_fast_a_id;
1188 srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
1189 srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
1190 srv.eap_fast_prov = conf->eap_fast_prov;
1191 srv.pac_key_lifetime = conf->pac_key_lifetime;
1192 srv.pac_key_refresh_time = conf->pac_key_refresh_time;
1193 srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
1194 srv.tnc = conf->tnc;
1195 srv.wps = hapd->wps;
1196 srv.ipv6 = conf->radius_server_ipv6;
1197 srv.get_eap_user = hostapd_radius_get_eap_user;
1198 srv.eap_req_id_text = conf->eap_req_id_text;
1199 srv.eap_req_id_text_len = conf->eap_req_id_text_len;
1201 hapd->radius_srv = radius_server_init(&srv);
1202 if (hapd->radius_srv == NULL) {
1203 wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
1212 * hostapd_setup_bss - Per-BSS setup (initialization)
1213 * @hapd: Pointer to BSS data
1214 * @first: Whether this BSS is the first BSS of an interface
1216 * This function is used to initialize all per-BSS data structures and
1217 * resources. This gets called in a loop for each BSS when an interface is
1218 * initialized. Most of the modules that are initialized here will be
1219 * deinitialized in hostapd_cleanup().
1221 static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
1223 struct hostapd_bss_config *conf = hapd->conf;
1224 u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
1225 int ssid_len, set_ssid;
1228 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
1229 /* Allocate the next available BSSID. */
1231 inc_byte_array(hapd->own_addr, ETH_ALEN);
1232 } while (mac_in_conf(hapd->iconf, hapd->own_addr));
1234 /* Allocate the configured BSSID. */
1235 os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
1237 if (hostapd_mac_comp(hapd->own_addr,
1238 hapd->iface->bss[0]->own_addr) ==
1240 wpa_printf(MSG_ERROR, "BSS '%s' may not have "
1241 "BSSID set to the MAC address of "
1242 "the radio", hapd->conf->iface);
1247 hapd->interface_added = 1;
1248 if (hostapd_bss_add(hapd->iface->bss[0], hapd->conf->iface,
1250 wpa_printf(MSG_ERROR, "Failed to add BSS (BSSID="
1251 MACSTR ")", MAC2STR(hapd->own_addr));
1257 * Fetch the SSID from the system and use it or,
1258 * if one was specified in the config file, verify they
1261 ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
1263 wpa_printf(MSG_ERROR, "Could not read SSID from system");
1266 if (conf->ssid.ssid_set) {
1268 * If SSID is specified in the config file and it differs
1269 * from what is being used then force installation of the
1272 set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
1273 os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
1276 * No SSID in the config file; just use the one we got
1280 conf->ssid.ssid_len = ssid_len;
1281 os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
1282 conf->ssid.ssid[conf->ssid.ssid_len] = '\0';
1285 if (!hostapd_drv_none(hapd)) {
1286 wpa_printf(MSG_ERROR, "Using interface %s with hwaddr " MACSTR
1288 hapd->conf->iface, MAC2STR(hapd->own_addr),
1289 hapd->conf->ssid.ssid);
1292 if (hostapd_setup_wpa_psk(conf)) {
1293 wpa_printf(MSG_ERROR, "WPA-PSK setup failed.");
1297 /* Set flag for whether SSID is broadcast in beacons */
1298 if (hostapd_set_broadcast_ssid(hapd,
1299 !!hapd->conf->ignore_broadcast_ssid)) {
1300 wpa_printf(MSG_ERROR, "Could not set broadcast SSID flag for "
1305 /* Set SSID for the kernel driver (to be used in beacon and probe
1306 * response frames) */
1307 if (set_ssid && hostapd_set_ssid(hapd, (u8 *) conf->ssid.ssid,
1308 conf->ssid.ssid_len)) {
1309 wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
1313 if (wpa_debug_level == MSG_MSGDUMP)
1314 conf->radius->msg_dumps = 1;
1315 hapd->radius = radius_client_init(hapd, conf->radius);
1316 if (hapd->radius == NULL) {
1317 wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
1321 if (hostapd_acl_init(hapd)) {
1322 wpa_printf(MSG_ERROR, "ACL initialization failed.");
1325 if (hostapd_init_wps(hapd, conf))
1328 if (ieee802_1x_init(hapd)) {
1329 wpa_printf(MSG_ERROR, "IEEE 802.1X initialization failed.");
1333 if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
1336 if (accounting_init(hapd)) {
1337 wpa_printf(MSG_ERROR, "Accounting initialization failed.");
1341 if (hapd->conf->ieee802_11f &&
1342 (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
1343 wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
1348 if (hostapd_ctrl_iface_init(hapd)) {
1349 wpa_printf(MSG_ERROR, "Failed to setup control interface");
1353 if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
1354 wpa_printf(MSG_ERROR, "VLAN initialization failed.");
1358 #ifdef CONFIG_IEEE80211R
1359 if (!hostapd_drv_none(hapd)) {
1360 hapd->l2 = l2_packet_init(hapd->conf->iface, NULL, ETH_P_RRB,
1361 hostapd_rrb_receive, hapd, 0);
1362 if (hapd->l2 == NULL &&
1363 (hapd->driver == NULL ||
1364 hapd->driver->send_ether == NULL)) {
1365 wpa_printf(MSG_ERROR, "Failed to open l2_packet "
1370 #endif /* CONFIG_IEEE80211R */
1372 ieee802_11_set_beacon(hapd);
1374 if (conf->radius_server_clients &&
1375 hostapd_setup_radius_srv(hapd, conf))
1382 static void hostapd_tx_queue_params(struct hostapd_iface *iface)
1384 struct hostapd_data *hapd = iface->bss[0];
1386 struct hostapd_tx_queue_params *p;
1388 for (i = 0; i < NUM_TX_QUEUES; i++) {
1389 p = &iface->conf->tx_queue[i];
1394 if (hostapd_set_tx_queue_params(hapd, i, p->aifs, p->cwmin,
1395 p->cwmax, p->burst)) {
1396 wpa_printf(MSG_DEBUG, "Failed to set TX queue "
1397 "parameters for queue %d.", i);
1398 /* Continue anyway */
1404 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
1405 size_t identity_len, int phase2,
1406 struct eap_user *user)
1408 const struct hostapd_eap_user *eap_user;
1411 eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
1412 if (eap_user == NULL)
1418 os_memset(user, 0, sizeof(*user));
1419 count = EAP_USER_MAX_METHODS;
1420 if (count > EAP_MAX_METHODS)
1421 count = EAP_MAX_METHODS;
1422 for (i = 0; i < count; i++) {
1423 user->methods[i].vendor = eap_user->methods[i].vendor;
1424 user->methods[i].method = eap_user->methods[i].method;
1427 if (eap_user->password) {
1428 user->password = os_malloc(eap_user->password_len);
1429 if (user->password == NULL)
1431 os_memcpy(user->password, eap_user->password,
1432 eap_user->password_len);
1433 user->password_len = eap_user->password_len;
1434 user->password_hash = eap_user->password_hash;
1436 user->force_version = eap_user->force_version;
1437 user->ttls_auth = eap_user->ttls_auth;
1443 static int setup_interface(struct hostapd_iface *iface)
1445 struct hostapd_data *hapd = iface->bss[0];
1446 struct hostapd_bss_config *conf = hapd->conf;
1449 u8 *b = conf->bssid;
1456 * Initialize the driver interface and make sure that all BSSes get
1457 * configured with a pointer to this driver interface.
1459 if (b[0] | b[1] | b[2] | b[3] | b[4] | b[5]) {
1460 hapd->drv_priv = hostapd_driver_init_bssid(hapd, b);
1462 hapd->drv_priv = hostapd_driver_init(hapd);
1465 if (hapd->drv_priv == NULL) {
1466 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
1467 hapd->driver ? hapd->driver->name : "Unknown");
1468 hapd->driver = NULL;
1471 for (i = 0; i < iface->num_bss; i++) {
1472 iface->bss[i]->driver = hapd->driver;
1473 iface->bss[i]->drv_priv = hapd->drv_priv;
1476 if (hostapd_validate_bssid_configuration(iface))
1479 #ifdef CONFIG_IEEE80211N
1480 SET_2BIT_LE16(&iface->ht_op_mode,
1481 HT_INFO_OPERATION_MODE_OP_MODE_OFFSET,
1483 #endif /* CONFIG_IEEE80211N */
1485 if (hapd->iconf->country[0] && hapd->iconf->country[1]) {
1486 os_memcpy(country, hapd->iconf->country, 3);
1488 if (hostapd_set_country(hapd, country) < 0) {
1489 wpa_printf(MSG_ERROR, "Failed to set country code");
1494 if (hapd->iconf->ieee80211d &&
1495 hostapd_set_ieee80211d(hapd, 1) < 0) {
1496 wpa_printf(MSG_ERROR, "Failed to set ieee80211d (%d)",
1497 hapd->iconf->ieee80211d);
1501 if (hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
1502 hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets)) {
1503 wpa_printf(MSG_ERROR, "Failed to set bridge_packets for "
1508 /* TODO: merge with hostapd_driver_init() ? */
1509 if (hostapd_wireless_event_init(hapd) < 0)
1512 if (hostapd_get_hw_features(iface)) {
1513 /* Not all drivers support this yet, so continue without hw
1516 int ret = hostapd_select_hw_mode(iface);
1518 wpa_printf(MSG_ERROR, "Could not select hw_mode and "
1519 "channel. (%d)", ret);
1524 hostapd_flush_old_stations(hapd);
1525 hostapd_set_privacy(hapd, 0);
1527 if (hapd->iconf->channel) {
1528 freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
1529 wpa_printf(MSG_DEBUG, "Mode: %s Channel: %d "
1530 "Frequency: %d MHz",
1531 hostapd_hw_mode_txt(hapd->iconf->hw_mode),
1532 hapd->iconf->channel, freq);
1534 if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq,
1535 hapd->iconf->ieee80211n,
1536 hapd->iconf->secondary_channel)) {
1537 wpa_printf(MSG_ERROR, "Could not set channel for "
1543 hostapd_broadcast_wep_clear(hapd);
1544 if (hostapd_setup_encryption(hapd->conf->iface, hapd))
1547 hostapd_set_beacon_int(hapd, hapd->iconf->beacon_int);
1548 ieee802_11_set_beacon(hapd);
1550 if (hapd->iconf->rts_threshold > -1 &&
1551 hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
1552 wpa_printf(MSG_ERROR, "Could not set RTS threshold for "
1557 if (hapd->iconf->fragm_threshold > -1 &&
1558 hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
1559 wpa_printf(MSG_ERROR, "Could not set fragmentation threshold "
1560 "for kernel driver");
1564 prev_addr = hapd->own_addr;
1566 for (j = 0; j < iface->num_bss; j++) {
1567 hapd = iface->bss[j];
1569 os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
1570 if (hostapd_setup_bss(hapd, j == 0))
1572 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
1573 prev_addr = hapd->own_addr;
1576 hostapd_tx_queue_params(iface);
1578 ap_list_init(iface);
1580 if (hostapd_driver_commit(hapd) < 0) {
1581 wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
1582 "configuration", __func__);
1591 * hostapd_setup_interface - Setup of an interface
1592 * @iface: Pointer to interface data.
1593 * Returns: 0 on success, -1 on failure
1595 * Initializes the driver interface, validates the configuration,
1596 * and sets driver parameters based on the configuration.
1597 * Flushes old stations, sets the channel, encryption,
1598 * beacons, and WDS links based on the configuration.
1600 static int hostapd_setup_interface(struct hostapd_iface *iface)
1604 ret = setup_interface(iface);
1606 wpa_printf(MSG_DEBUG, "%s: Unable to setup interface.",
1607 iface->bss[0]->conf->iface);
1610 } else if (!hostapd_drv_none(iface->bss[0])) {
1611 wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
1612 iface->bss[0]->conf->iface);
1619 static void show_version(void)
1622 "hostapd v" VERSION_STR "\n"
1623 "User space daemon for IEEE 802.11 AP management,\n"
1624 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
1625 "Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi> "
1626 "and contributors\n");
1630 static void usage(void)
1635 "usage: hostapd [-hdBKtv] [-P <PID file>] "
1636 "<configuration file(s)>\n"
1639 " -h show this usage\n"
1640 " -d show more debug messages (-dd for even more)\n"
1641 " -B run daemon in the background\n"
1643 " -K include key data in debug messages\n"
1644 " -t include timestamps in some debug messages\n"
1645 " -v show hostapd version\n");
1652 * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
1653 * @hapd_iface: Pointer to interface data
1654 * @conf: Pointer to per-interface configuration
1655 * @bss: Pointer to per-BSS configuration for this BSS
1656 * Returns: Pointer to allocated BSS data
1658 * This function is used to allocate per-BSS data structure. This data will be
1659 * freed after hostapd_cleanup() is called for it during interface
1662 static struct hostapd_data *
1663 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
1664 struct hostapd_config *conf,
1665 struct hostapd_bss_config *bss)
1667 struct hostapd_data *hapd;
1669 hapd = os_zalloc(sizeof(*hapd));
1675 hapd->iface = hapd_iface;
1677 if (hapd->conf->individual_wep_key_len > 0) {
1678 /* use key0 in individual key and key1 in broadcast key */
1679 hapd->default_wep_key_idx = 1;
1682 #ifdef EAP_TLS_FUNCS
1683 if (hapd->conf->eap_server &&
1684 (hapd->conf->ca_cert || hapd->conf->server_cert ||
1685 hapd->conf->dh_file)) {
1686 struct tls_connection_params params;
1688 hapd->ssl_ctx = tls_init(NULL);
1689 if (hapd->ssl_ctx == NULL) {
1690 wpa_printf(MSG_ERROR, "Failed to initialize TLS");
1694 os_memset(¶ms, 0, sizeof(params));
1695 params.ca_cert = hapd->conf->ca_cert;
1696 params.client_cert = hapd->conf->server_cert;
1697 params.private_key = hapd->conf->private_key;
1698 params.private_key_passwd = hapd->conf->private_key_passwd;
1699 params.dh_file = hapd->conf->dh_file;
1701 if (tls_global_set_params(hapd->ssl_ctx, ¶ms)) {
1702 wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
1706 if (tls_global_set_verify(hapd->ssl_ctx,
1707 hapd->conf->check_crl)) {
1708 wpa_printf(MSG_ERROR, "Failed to enable check_crl");
1712 #endif /* EAP_TLS_FUNCS */
1715 if (hapd->conf->eap_sim_db) {
1716 hapd->eap_sim_db_priv =
1717 eap_sim_db_init(hapd->conf->eap_sim_db,
1718 hostapd_sim_db_cb, hapd);
1719 if (hapd->eap_sim_db_priv == NULL) {
1720 wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
1721 "database interface");
1725 #endif /* EAP_SERVER */
1727 hapd->driver = hapd->iconf->driver;
1731 #if defined(EAP_TLS_FUNCS) || defined(EAP_SERVER)
1734 /* TODO: cleanup allocated resources(?) */
1741 * hostapd_init - Allocate and initialize per-interface data
1742 * @config_file: Path to the configuration file
1743 * Returns: Pointer to the allocated interface data or %NULL on failure
1745 * This function is used to allocate main data structures for per-interface
1746 * data. The allocated data buffer will be freed by calling
1747 * hostapd_cleanup_iface().
1749 static struct hostapd_iface * hostapd_init(const char *config_file)
1751 struct hostapd_iface *hapd_iface = NULL;
1752 struct hostapd_config *conf = NULL;
1753 struct hostapd_data *hapd;
1756 hapd_iface = os_zalloc(sizeof(*hapd_iface));
1757 if (hapd_iface == NULL)
1760 hapd_iface->config_fname = os_strdup(config_file);
1761 if (hapd_iface->config_fname == NULL)
1764 conf = hostapd_config_read(hapd_iface->config_fname);
1767 hapd_iface->conf = conf;
1769 hapd_iface->num_bss = conf->num_bss;
1770 hapd_iface->bss = os_zalloc(conf->num_bss *
1771 sizeof(struct hostapd_data *));
1772 if (hapd_iface->bss == NULL)
1775 for (i = 0; i < conf->num_bss; i++) {
1776 hapd = hapd_iface->bss[i] =
1777 hostapd_alloc_bss_data(hapd_iface, conf,
1787 hostapd_config_free(conf);
1789 for (i = 0; hapd_iface->bss && i < hapd_iface->num_bss; i++) {
1790 hapd = hapd_iface->bss[i];
1791 if (hapd && hapd->ssl_ctx)
1792 tls_deinit(hapd->ssl_ctx);
1795 os_free(hapd_iface->config_fname);
1796 os_free(hapd_iface->bss);
1797 os_free(hapd_iface);
1803 static int hostapd_global_init(struct hapd_interfaces *interfaces)
1805 hostapd_logger_register_cb(hostapd_logger_cb);
1807 if (eap_server_register_methods()) {
1808 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1812 if (eloop_init(interfaces)) {
1813 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1817 #ifndef CONFIG_NATIVE_WINDOWS
1818 eloop_register_signal(SIGHUP, handle_reload, NULL);
1819 eloop_register_signal(SIGUSR1, handle_dump_state, NULL);
1820 #endif /* CONFIG_NATIVE_WINDOWS */
1821 eloop_register_signal_terminate(handle_term, NULL);
1823 #ifndef CONFIG_NATIVE_WINDOWS
1824 openlog("hostapd", 0, LOG_DAEMON);
1825 #endif /* CONFIG_NATIVE_WINDOWS */
1831 static void hostapd_global_deinit(const char *pid_file)
1833 #ifdef EAP_SERVER_TNC
1834 tncs_global_deinit();
1835 #endif /* EAP_SERVER_TNC */
1839 #ifndef CONFIG_NATIVE_WINDOWS
1841 #endif /* CONFIG_NATIVE_WINDOWS */
1843 eap_server_unregister_methods();
1845 os_daemonize_terminate(pid_file);
1849 static void hostapd_interface_deinit(struct hostapd_iface *iface)
1856 hostapd_cleanup_iface_pre(iface);
1857 for (j = 0; j < iface->num_bss; j++) {
1858 struct hostapd_data *hapd = iface->bss[j];
1859 hostapd_free_stas(hapd);
1860 hostapd_flush_old_stations(hapd);
1861 hostapd_cleanup(hapd);
1862 if (j == iface->num_bss - 1 && hapd->driver)
1863 hostapd_driver_deinit(hapd);
1865 for (j = 0; j < iface->num_bss; j++)
1866 os_free(iface->bss[j]);
1867 hostapd_cleanup_iface(iface);
1871 static struct hostapd_iface * hostapd_interface_init(const char *config_fname,
1874 struct hostapd_iface *iface;
1877 wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
1878 iface = hostapd_init(config_fname);
1882 for (k = 0; k < debug; k++) {
1883 if (iface->bss[0]->conf->logger_stdout_level > 0)
1884 iface->bss[0]->conf->logger_stdout_level--;
1887 if (hostapd_setup_interface(iface)) {
1888 hostapd_interface_deinit(iface);
1896 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
1897 const char *pid_file)
1899 #ifdef EAP_SERVER_TNC
1903 for (i = 0; !tnc && i < ifaces->count; i++) {
1904 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
1905 if (ifaces->iface[i]->bss[0]->conf->tnc) {
1912 if (tnc && tncs_global_init() < 0) {
1913 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
1916 #endif /* EAP_SERVER_TNC */
1918 if (daemonize && os_daemonize(pid_file)) {
1929 int main(int argc, char *argv[])
1931 struct hapd_interfaces interfaces;
1934 int c, debug = 0, daemonize = 0;
1935 const char *pid_file = NULL;
1938 c = getopt(argc, argv, "BdhKP:tv");
1947 if (wpa_debug_level > 0)
1954 wpa_debug_show_keys++;
1960 wpa_debug_timestamp++;
1976 interfaces.count = argc - optind;
1977 interfaces.iface = os_malloc(interfaces.count *
1978 sizeof(struct hostapd_iface *));
1979 if (interfaces.iface == NULL) {
1980 wpa_printf(MSG_ERROR, "malloc failed\n");
1984 if (hostapd_global_init(&interfaces))
1987 /* Initialize interfaces */
1988 for (i = 0; i < interfaces.count; i++) {
1989 interfaces.iface[i] = hostapd_interface_init(argv[optind + i],
1991 if (!interfaces.iface[i])
1995 if (hostapd_global_run(&interfaces, daemonize, pid_file))
2001 /* Deinitialize all interfaces */
2002 for (i = 0; i < interfaces.count; i++)
2003 hostapd_interface_deinit(interfaces.iface[i]);
2004 os_free(interfaces.iface);
2006 hostapd_global_deinit(pid_file);