hostapd/hostapd.c

   1 /*
   2  * hostapd / Initialization and configuration
   3  * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
   4  *
   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.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16 #ifndef CONFIG_NATIVE_WINDOWS
  17 #include <syslog.h>
  18 #endif /* CONFIG_NATIVE_WINDOWS */
  19
  20 #include "eloop.h"
  21 #include "hostapd.h"
  22 #include "ieee802_1x.h"
  23 #include "beacon.h"
  24 #include "hw_features.h"
  25 #include "accounting.h"
  26 #include "eapol_sm.h"
  27 #include "iapp.h"
  28 #include "ap.h"
  29 #include "ieee802_11_auth.h"
  30 #include "ap_list.h"
  31 #include "sta_info.h"
  32 #include "driver_i.h"
  33 #include "radius/radius_client.h"
  34 #include "radius/radius_server.h"
  35 #include "wpa.h"
  36 #include "preauth.h"
  37 #include "vlan_init.h"
  38 #include "ctrl_iface.h"
  39 #include "tls.h"
  40 #include "eap_server/eap_sim_db.h"
  41 #include "eap_server/eap.h"
  42 #include "eap_server/tncs.h"
  43 #include "version.h"
  44 #include "l2_packet/l2_packet.h"
  45 #include "wps_hostapd.h"
  46 #include "tkip_countermeasures.h"
  47
  48
  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);
  55
  56 struct hapd_interfaces {
  57         size_t count;
  58         struct hostapd_iface **iface;
  59 };
  60
  61
  62 extern int wpa_debug_level;
  63 extern int wpa_debug_show_keys;
  64 extern int wpa_debug_timestamp;
  65
  66
  67 int hostapd_for_each_interface(int (*cb)(struct hostapd_iface *iface,
  68                                          void *ctx), void *ctx)
  69 {
  70         struct hapd_interfaces *interfaces = eloop_get_user_data();
  71         size_t i;
  72         int ret;
  73
  74         for (i = 0; i < interfaces->count; i++) {
  75                 ret = cb(interfaces->iface[i], ctx);
  76                 if (ret)
  77                         return ret;
  78         }
  79
  80         return 0;
  81 }
  82
  83
  84 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  85                               int level, const char *txt, size_t len)
  86 {
  87         struct hostapd_data *hapd = ctx;
  88         char *format, *module_str;
  89         int maxlen;
  90         int conf_syslog_level, conf_stdout_level;
  91         unsigned int conf_syslog, conf_stdout;
  92
  93         maxlen = len + 100;
  94         format = os_malloc(maxlen);
  95         if (!format)
  96                 return;
  97
  98         if (hapd && hapd->conf) {
  99                 conf_syslog_level = hapd->conf->logger_syslog_level;
 100                 conf_stdout_level = hapd->conf->logger_stdout_level;
 101                 conf_syslog = hapd->conf->logger_syslog;
 102                 conf_stdout = hapd->conf->logger_stdout;
 103         } else {
 104                 conf_syslog_level = conf_stdout_level = 0;
 105                 conf_syslog = conf_stdout = (unsigned int) -1;
 106         }
 107
 108         switch (module) {
 109         case HOSTAPD_MODULE_IEEE80211:
 110                 module_str = "IEEE 802.11";
 111                 break;
 112         case HOSTAPD_MODULE_IEEE8021X:
 113                 module_str = "IEEE 802.1X";
 114                 break;
 115         case HOSTAPD_MODULE_RADIUS:
 116                 module_str = "RADIUS";
 117                 break;
 118         case HOSTAPD_MODULE_WPA:
 119                 module_str = "WPA";
 120                 break;
 121         case HOSTAPD_MODULE_DRIVER:
 122                 module_str = "DRIVER";
 123                 break;
 124         case HOSTAPD_MODULE_IAPP:
 125                 module_str = "IAPP";
 126                 break;
 127         case HOSTAPD_MODULE_MLME:
 128                 module_str = "MLME";
 129                 break;
 130         default:
 131                 module_str = NULL;
 132                 break;
 133         }
 134
 135         if (hapd && hapd->conf && addr)
 136                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
 137                             hapd->conf->iface, MAC2STR(addr),
 138                             module_str ? " " : "", module_str, txt);
 139         else if (hapd && hapd->conf)
 140                 os_snprintf(format, maxlen, "%s:%s%s %s",
 141                             hapd->conf->iface, module_str ? " " : "",
 142                             module_str, txt);
 143         else if (addr)
 144                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 145                             MAC2STR(addr), module_str ? " " : "",
 146                             module_str, txt);
 147         else
 148                 os_snprintf(format, maxlen, "%s%s%s",
 149                             module_str, module_str ? ": " : "", txt);
 150
 151         if ((conf_stdout & module) && level >= conf_stdout_level) {
 152                 wpa_debug_print_timestamp();
 153                 printf("%s\n", format);
 154         }
 155
 156 #ifndef CONFIG_NATIVE_WINDOWS
 157         if ((conf_syslog & module) && level >= conf_syslog_level) {
 158                 int priority;
 159                 switch (level) {
 160                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 161                 case HOSTAPD_LEVEL_DEBUG:
 162                         priority = LOG_DEBUG;
 163                         break;
 164                 case HOSTAPD_LEVEL_INFO:
 165                         priority = LOG_INFO;
 166                         break;
 167                 case HOSTAPD_LEVEL_NOTICE:
 168                         priority = LOG_NOTICE;
 169                         break;
 170                 case HOSTAPD_LEVEL_WARNING:
 171                         priority = LOG_WARNING;
 172                         break;
 173                 default:
 174                         priority = LOG_INFO;
 175                         break;
 176                 }
 177                 syslog(priority, "%s", format);
 178         }
 179 #endif /* CONFIG_NATIVE_WINDOWS */
 180
 181         os_free(format);
 182 }
 183
 184
 185 #ifdef EAP_SERVER
 186 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
 187                                  struct sta_info *sta, void *ctx)
 188 {
 189         if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
 190                 return 1;
 191         return 0;
 192 }
 193
 194
 195 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
 196 {
 197         struct hostapd_data *hapd = ctx;
 198         if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0)
 199                 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
 200 }
 201 #endif /* EAP_SERVER */
 202
 203
 204 /**
 205  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 206  */
 207 static void handle_term(int sig, void *eloop_ctx, void *signal_ctx)
 208 {
 209         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 210         eloop_terminate();
 211 }
 212
 213
 214 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
 215                                   struct wpa_auth_config *wconf)
 216 {
 217         wconf->wpa = conf->wpa;
 218         wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
 219         wconf->wpa_pairwise = conf->wpa_pairwise;
 220         wconf->wpa_group = conf->wpa_group;
 221         wconf->wpa_group_rekey = conf->wpa_group_rekey;
 222         wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
 223         wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
 224         wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
 225         wconf->rsn_pairwise = conf->rsn_pairwise;
 226         wconf->rsn_preauth = conf->rsn_preauth;
 227         wconf->eapol_version = conf->eapol_version;
 228         wconf->peerkey = conf->peerkey;
 229         wconf->wme_enabled = conf->wme_enabled;
 230         wconf->okc = conf->okc;
 231 #ifdef CONFIG_IEEE80211W
 232         wconf->ieee80211w = conf->ieee80211w;
 233 #endif /* CONFIG_IEEE80211W */
 234 #ifdef CONFIG_IEEE80211R
 235         wconf->ssid_len = conf->ssid.ssid_len;
 236         if (wconf->ssid_len > SSID_LEN)
 237                 wconf->ssid_len = SSID_LEN;
 238         os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
 239         os_memcpy(wconf->mobility_domain, conf->mobility_domain,
 240                   MOBILITY_DOMAIN_ID_LEN);
 241         if (conf->nas_identifier &&
 242             os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
 243                 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
 244                 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
 245                           wconf->r0_key_holder_len);
 246         }
 247         os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
 248         wconf->r0_key_lifetime = conf->r0_key_lifetime;
 249         wconf->reassociation_deadline = conf->reassociation_deadline;
 250         wconf->r0kh_list = conf->r0kh_list;
 251         wconf->r1kh_list = conf->r1kh_list;
 252         wconf->pmk_r1_push = conf->pmk_r1_push;
 253 #endif /* CONFIG_IEEE80211R */
 254 }
 255
 256
 257 int hostapd_reload_config(struct hostapd_iface *iface)
 258 {
 259         struct hostapd_data *hapd = iface->bss[0];
 260         struct hostapd_config *newconf, *oldconf;
 261         struct wpa_auth_config wpa_auth_conf;
 262
 263         newconf = hostapd_config_read(iface->config_fname);
 264         if (newconf == NULL)
 265                 return -1;
 266
 267         /*
 268          * Deauthenticate all stations since the new configuration may not
 269          * allow them to use the BSS anymore.
 270          */
 271         hostapd_flush_old_stations(hapd);
 272
 273         /* TODO: update dynamic data based on changed configuration
 274          * items (e.g., open/close sockets, etc.) */
 275         radius_client_flush(hapd->radius, 0);
 276
 277         oldconf = hapd->iconf;
 278         hapd->iconf = newconf;
 279         hapd->conf = &newconf->bss[0];
 280         iface->conf = newconf;
 281
 282         if (hostapd_setup_wpa_psk(hapd->conf)) {
 283                 wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
 284                            "after reloading configuration");
 285         }
 286
 287         if (hapd->conf->wpa && hapd->wpa_auth == NULL)
 288                 hostapd_setup_wpa(hapd);
 289         else if (hapd->conf->wpa) {
 290                 hostapd_wpa_auth_conf(&newconf->bss[0], &wpa_auth_conf);
 291                 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 292         } else if (hapd->wpa_auth) {
 293                 wpa_deinit(hapd->wpa_auth);
 294                 hapd->wpa_auth = NULL;
 295                 hostapd_set_privacy(hapd, 0);
 296                 hostapd_setup_encryption(hapd->conf->iface, hapd);
 297         }
 298
 299         ieee802_11_set_beacon(hapd);
 300
 301         hostapd_config_free(oldconf);
 302
 303         wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
 304
 305         return 0;
 306 }
 307
 308
 309 #ifndef CONFIG_NATIVE_WINDOWS
 310 /**
 311  * handle_reload - SIGHUP handler to reload configuration
 312  */
 313 static void handle_reload(int sig, void *eloop_ctx, void *signal_ctx)
 314 {
 315         struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
 316         size_t i;
 317
 318         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 319                    sig);
 320
 321         for (i = 0; i < hapds->count; i++) {
 322                 if (hostapd_reload_config(hapds->iface[i]) < 0) {
 323                         wpa_printf(MSG_WARNING, "Failed to read new "
 324                                    "configuration file - continuing with "
 325                                    "old.");
 326                         continue;
 327                 }
 328         }
 329 }
 330
 331
 332 #ifdef HOSTAPD_DUMP_STATE
 333 /**
 334  * hostapd_dump_state - SIGUSR1 handler to dump hostapd state to a text file
 335  */
 336 static void hostapd_dump_state(struct hostapd_data *hapd)
 337 {
 338         FILE *f;
 339         time_t now;
 340         struct sta_info *sta;
 341         int i;
 342         char *buf;
 343
 344         if (!hapd->conf->dump_log_name) {
 345                 wpa_printf(MSG_DEBUG, "Dump file not defined - ignoring dump "
 346                            "request");
 347                 return;
 348         }
 349
 350         wpa_printf(MSG_DEBUG, "Dumping hostapd state to '%s'",
 351                    hapd->conf->dump_log_name);
 352         f = fopen(hapd->conf->dump_log_name, "w");
 353         if (f == NULL) {
 354                 wpa_printf(MSG_WARNING, "Could not open dump file '%s' for "
 355                            "writing.", hapd->conf->dump_log_name);
 356                 return;
 357         }
 358
 359         time(&now);
 360         fprintf(f, "hostapd state dump - %s", ctime(&now));
 361         fprintf(f, "num_sta=%d num_sta_non_erp=%d "
 362                 "num_sta_no_short_slot_time=%d\n"
 363                 "num_sta_no_short_preamble=%d\n",
 364                 hapd->num_sta, hapd->iface->num_sta_non_erp,
 365                 hapd->iface->num_sta_no_short_slot_time,
 366                 hapd->iface->num_sta_no_short_preamble);
 367
 368         for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
 369                 fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
 370
 371                 fprintf(f,
 372                         "  AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
 373                         "  capability=0x%x listen_interval=%d\n",
 374                         sta->aid,
 375                         sta->flags,
 376                         (sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
 377                         (sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
 378                         (sta->flags & WLAN_STA_PS ? "[PS]" : ""),
 379                         (sta->flags & WLAN_STA_TIM ? "[TIM]" : ""),
 380                         (sta->flags & WLAN_STA_PERM ? "[PERM]" : ""),
 381                         (sta->flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" :
 382                          ""),
 383                         (sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
 384                          ""),
 385                         (sta->flags & WLAN_STA_SHORT_PREAMBLE ?
 386                          "[SHORT_PREAMBLE]" : ""),
 387                         (sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
 388                         (sta->flags & WLAN_STA_WME ? "[WME]" : ""),
 389                         (sta->flags & WLAN_STA_MFP ? "[MFP]" : ""),
 390                         (sta->flags & WLAN_STA_WPS ? "[WPS]" : ""),
 391                         (sta->flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
 392                         (sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
 393                         sta->capability,
 394                         sta->listen_interval);
 395
 396                 fprintf(f, "  supported_rates=");
 397                 for (i = 0; i < sta->supported_rates_len; i++)
 398                         fprintf(f, "%02x ", sta->supported_rates[i]);
 399                 fprintf(f, "\n");
 400
 401                 fprintf(f,
 402                         "  timeout_next=%s\n",
 403                         (sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" :
 404                          (sta->timeout_next == STA_DISASSOC ? "DISASSOC" :
 405                           "DEAUTH")));
 406
 407                 ieee802_1x_dump_state(f, "  ", sta);
 408         }
 409
 410         buf = os_malloc(4096);
 411         if (buf) {
 412                 int count = radius_client_get_mib(hapd->radius, buf, 4096);
 413                 if (count < 0)
 414                         count = 0;
 415                 else if (count > 4095)
 416                         count = 4095;
 417                 buf[count] = '\0';
 418                 fprintf(f, "%s", buf);
 419
 420                 count = radius_server_get_mib(hapd->radius_srv, buf, 4096);
 421                 if (count < 0)
 422                         count = 0;
 423                 else if (count > 4095)
 424                         count = 4095;
 425                 buf[count] = '\0';
 426                 fprintf(f, "%s", buf);
 427                 os_free(buf);
 428         }
 429         fclose(f);
 430 }
 431 #endif /* HOSTAPD_DUMP_STATE */
 432
 433
 434 static void handle_dump_state(int sig, void *eloop_ctx, void *signal_ctx)
 435 {
 436 #ifdef HOSTAPD_DUMP_STATE
 437         struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
 438         size_t i, j;
 439
 440         for (i = 0; i < hapds->count; i++) {
 441                 struct hostapd_iface *hapd_iface = hapds->iface[i];
 442                 for (j = 0; j < hapd_iface->num_bss; j++)
 443                         hostapd_dump_state(hapd_iface->bss[j]);
 444         }
 445 #endif /* HOSTAPD_DUMP_STATE */
 446 }
 447 #endif /* CONFIG_NATIVE_WINDOWS */
 448
 449 static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
 450                                               char *ifname)
 451 {
 452         int i;
 453
 454         for (i = 0; i < NUM_WEP_KEYS; i++) {
 455                 if (hostapd_set_encryption(ifname, hapd, "none", NULL, i, NULL,
 456                                            0, i == 0 ? 1 : 0)) {
 457                         wpa_printf(MSG_DEBUG, "Failed to clear default "
 458                                    "encryption keys (ifname=%s keyidx=%d)",
 459                                    ifname, i);
 460                 }
 461         }
 462 #ifdef CONFIG_IEEE80211W
 463         if (hapd->conf->ieee80211w) {
 464                 for (i = NUM_WEP_KEYS; i < NUM_WEP_KEYS + 2; i++) {
 465                         if (hostapd_set_encryption(ifname, hapd, "none", NULL,
 466                                                    i, NULL, 0,
 467                                                    i == 0 ? 1 : 0)) {
 468                                 wpa_printf(MSG_DEBUG, "Failed to clear "
 469                                            "default mgmt encryption keys "
 470                                            "(ifname=%s keyidx=%d)", ifname, i);
 471                         }
 472                 }
 473         }
 474 #endif /* CONFIG_IEEE80211W */
 475 }
 476
 477
 478 static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
 479 {
 480         hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
 481         return 0;
 482 }
 483
 484
 485 static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
 486 {
 487         int errors = 0, idx;
 488         struct hostapd_ssid *ssid = &hapd->conf->ssid;
 489
 490         idx = ssid->wep.idx;
 491         if (ssid->wep.default_len &&
 492             hostapd_set_encryption(hapd->conf->iface,
 493                                    hapd, "WEP", NULL, idx,
 494                                    ssid->wep.key[idx],
 495                                    ssid->wep.len[idx],
 496                                    idx == ssid->wep.idx)) {
 497                 wpa_printf(MSG_WARNING, "Could not set WEP encryption.");
 498                 errors++;
 499         }
 500
 501         if (ssid->dyn_vlan_keys) {
 502                 size_t i;
 503                 for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
 504                         const char *ifname;
 505                         struct hostapd_wep_keys *key = ssid->dyn_vlan_keys[i];
 506                         if (key == NULL)
 507                                 continue;
 508                         ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan,
 509                                                             i);
 510                         if (ifname == NULL)
 511                                 continue;
 512
 513                         idx = key->idx;
 514                         if (hostapd_set_encryption(ifname, hapd, "WEP", NULL,
 515                                                    idx, key->key[idx],
 516                                                    key->len[idx],
 517                                                    idx == key->idx)) {
 518                                 wpa_printf(MSG_WARNING, "Could not set "
 519                                            "dynamic VLAN WEP encryption.");
 520                                 errors++;
 521                         }
 522                 }
 523         }
 524
 525         return errors;
 526 }
 527
 528 /**
 529  * hostapd_cleanup - Per-BSS cleanup (deinitialization)
 530  * @hapd: Pointer to BSS data
 531  *
 532  * This function is used to free all per-BSS data structures and resources.
 533  * This gets called in a loop for each BSS between calls to
 534  * hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
 535  * is deinitialized. Most of the modules that are initialized in
 536  * hostapd_setup_bss() are deinitialized here.
 537  */
 538 static void hostapd_cleanup(struct hostapd_data *hapd)
 539 {
 540         hostapd_ctrl_iface_deinit(hapd);
 541
 542         os_free(hapd->default_wep_key);
 543         hapd->default_wep_key = NULL;
 544         iapp_deinit(hapd->iapp);
 545         hapd->iapp = NULL;
 546         accounting_deinit(hapd);
 547         rsn_preauth_iface_deinit(hapd);
 548         if (hapd->wpa_auth) {
 549                 wpa_deinit(hapd->wpa_auth);
 550                 hapd->wpa_auth = NULL;
 551
 552                 if (hostapd_set_privacy(hapd, 0)) {
 553                         wpa_printf(MSG_DEBUG, "Could not disable "
 554                                    "PrivacyInvoked for interface %s",
 555                                    hapd->conf->iface);
 556                 }
 557
 558                 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
 559                         wpa_printf(MSG_DEBUG, "Could not remove generic "
 560                                    "information element from interface %s",
 561                                    hapd->conf->iface);
 562                 }
 563         }
 564         ieee802_1x_deinit(hapd);
 565         vlan_deinit(hapd);
 566         hostapd_acl_deinit(hapd);
 567         radius_client_deinit(hapd->radius);
 568         hapd->radius = NULL;
 569         radius_server_deinit(hapd->radius_srv);
 570         hapd->radius_srv = NULL;
 571
 572 #ifdef CONFIG_IEEE80211R
 573         l2_packet_deinit(hapd->l2);
 574 #endif /* CONFIG_IEEE80211R */
 575
 576         hostapd_deinit_wps(hapd);
 577
 578         hostapd_wireless_event_deinit(hapd);
 579
 580 #ifdef EAP_TLS_FUNCS
 581         if (hapd->ssl_ctx) {
 582                 tls_deinit(hapd->ssl_ctx);
 583                 hapd->ssl_ctx = NULL;
 584         }
 585 #endif /* EAP_TLS_FUNCS */
 586
 587 #ifdef EAP_SERVER
 588         if (hapd->eap_sim_db_priv) {
 589                 eap_sim_db_deinit(hapd->eap_sim_db_priv);
 590                 hapd->eap_sim_db_priv = NULL;
 591         }
 592 #endif /* EAP_SERVER */
 593
 594         if (hapd->interface_added &&
 595             hostapd_bss_remove(hapd, hapd->conf->iface)) {
 596                 wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s",
 597                            hapd->conf->iface);
 598         }
 599 }
 600
 601
 602 /**
 603  * hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
 604  * @iface: Pointer to interface data
 605  *
 606  * This function is called before per-BSS data structures are deinitialized
 607  * with hostapd_cleanup().
 608  */
 609 static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
 610 {
 611 }
 612
 613
 614 /**
 615  * hostapd_cleanup_iface - Complete per-interface cleanup
 616  * @iface: Pointer to interface data
 617  *
 618  * This function is called after per-BSS data structures are deinitialized
 619  * with hostapd_cleanup().
 620  */
 621 static void hostapd_cleanup_iface(struct hostapd_iface *iface)
 622 {
 623         hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
 624         iface->hw_features = NULL;
 625         os_free(iface->current_rates);
 626         iface->current_rates = NULL;
 627         ap_list_deinit(iface);
 628         hostapd_config_free(iface->conf);
 629         iface->conf = NULL;
 630
 631         os_free(iface->config_fname);
 632         os_free(iface->bss);
 633         os_free(iface);
 634 }
 635
 636
 637 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
 638 {
 639         int i;
 640
 641         hostapd_broadcast_wep_set(hapd);
 642
 643         if (hapd->conf->ssid.wep.default_len)
 644                 return 0;
 645
 646         for (i = 0; i < 4; i++) {
 647                 if (hapd->conf->ssid.wep.key[i] &&
 648                     hostapd_set_encryption(iface, hapd, "WEP", NULL,
 649                                            i, hapd->conf->ssid.wep.key[i],
 650                                            hapd->conf->ssid.wep.len[i],
 651                                            i == hapd->conf->ssid.wep.idx)) {
 652                         wpa_printf(MSG_WARNING, "Could not set WEP "
 653                                    "encryption.");
 654                         return -1;
 655                 }
 656                 if (hapd->conf->ssid.wep.key[i] &&
 657                     i == hapd->conf->ssid.wep.idx)
 658                         hostapd_set_privacy(hapd, 1);
 659         }
 660
 661         return 0;
 662 }
 663
 664
 665 static int hostapd_flush_old_stations(struct hostapd_data *hapd)
 666 {
 667         int ret = 0;
 668
 669         if (hostapd_drv_none(hapd))
 670                 return 0;
 671
 672         wpa_printf(MSG_DEBUG, "Flushing old station entries");
 673         if (hostapd_flush(hapd)) {
 674                 wpa_printf(MSG_WARNING, "Could not connect to kernel driver.");
 675                 ret = -1;
 676         }
 677         wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
 678
 679         /* New Prism2.5/3 STA firmware versions seem to have issues with this
 680          * broadcast deauth frame. This gets the firmware in odd state where
 681          * nothing works correctly, so let's skip sending this for the hostap
 682          * driver. */
 683         if (hapd->driver && os_strcmp(hapd->driver->name, "hostap") != 0) {
 684                 u8 addr[ETH_ALEN];
 685                 os_memset(addr, 0xff, ETH_ALEN);
 686                 hostapd_sta_deauth(hapd, addr,
 687                                    WLAN_REASON_PREV_AUTH_NOT_VALID);
 688         }
 689
 690         return ret;
 691 }
 692
 693
 694 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
 695                                     logger_level level, const char *txt)
 696 {
 697         struct hostapd_data *hapd = ctx;
 698         int hlevel;
 699
 700         switch (level) {
 701         case LOGGER_WARNING:
 702                 hlevel = HOSTAPD_LEVEL_WARNING;
 703                 break;
 704         case LOGGER_INFO:
 705                 hlevel = HOSTAPD_LEVEL_INFO;
 706                 break;
 707         case LOGGER_DEBUG:
 708         default:
 709                 hlevel = HOSTAPD_LEVEL_DEBUG;
 710                 break;
 711         }
 712
 713         hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
 714 }
 715
 716
 717 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 718                                         u16 reason)
 719 {
 720         struct hostapd_data *hapd = ctx;
 721         struct sta_info *sta;
 722
 723         wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
 724                    "STA " MACSTR " reason %d",
 725                    __func__, MAC2STR(addr), reason);
 726
 727         sta = ap_get_sta(hapd, addr);
 728         hostapd_sta_deauth(hapd, addr, reason);
 729         if (sta == NULL)
 730                 return;
 731         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_AUTHORIZED);
 732         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 733         eloop_register_timeout(0, 0, ap_handle_timer, hapd, sta);
 734         sta->timeout_next = STA_REMOVE;
 735 }
 736
 737
 738 static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 739 {
 740         struct hostapd_data *hapd = ctx;
 741         michael_mic_failure(hapd, addr, 0);
 742 }
 743
 744
 745 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
 746                                        wpa_eapol_variable var, int value)
 747 {
 748         struct hostapd_data *hapd = ctx;
 749         struct sta_info *sta = ap_get_sta(hapd, addr);
 750         if (sta == NULL)
 751                 return;
 752         switch (var) {
 753         case WPA_EAPOL_portEnabled:
 754                 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
 755                 break;
 756         case WPA_EAPOL_portValid:
 757                 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
 758                 break;
 759         case WPA_EAPOL_authorized:
 760                 ieee802_1x_set_sta_authorized(hapd, sta, value);
 761                 break;
 762         case WPA_EAPOL_portControl_Auto:
 763                 if (sta->eapol_sm)
 764                         sta->eapol_sm->portControl = Auto;
 765                 break;
 766         case WPA_EAPOL_keyRun:
 767                 if (sta->eapol_sm)
 768                         sta->eapol_sm->keyRun = value ? TRUE : FALSE;
 769                 break;
 770         case WPA_EAPOL_keyAvailable:
 771                 if (sta->eapol_sm)
 772                         sta->eapol_sm->eap_if->eapKeyAvailable =
 773                                 value ? TRUE : FALSE;
 774                 break;
 775         case WPA_EAPOL_keyDone:
 776                 if (sta->eapol_sm)
 777                         sta->eapol_sm->keyDone = value ? TRUE : FALSE;
 778                 break;
 779         case WPA_EAPOL_inc_EapolFramesTx:
 780                 if (sta->eapol_sm)
 781                         sta->eapol_sm->dot1xAuthEapolFramesTx++;
 782                 break;
 783         }
 784 }
 785
 786
 787 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 788                                       wpa_eapol_variable var)
 789 {
 790         struct hostapd_data *hapd = ctx;
 791         struct sta_info *sta = ap_get_sta(hapd, addr);
 792         if (sta == NULL || sta->eapol_sm == NULL)
 793                 return -1;
 794         switch (var) {
 795         case WPA_EAPOL_keyRun:
 796                 return sta->eapol_sm->keyRun;
 797         case WPA_EAPOL_keyAvailable:
 798                 return sta->eapol_sm->eap_if->eapKeyAvailable;
 799         default:
 800                 return -1;
 801         }
 802 }
 803
 804
 805 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
 806                                            const u8 *prev_psk)
 807 {
 808         struct hostapd_data *hapd = ctx;
 809         return hostapd_get_psk(hapd->conf, addr, prev_psk);
 810 }
 811
 812
 813 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 814                                     size_t *len)
 815 {
 816         struct hostapd_data *hapd = ctx;
 817         const u8 *key;
 818         size_t keylen;
 819         struct sta_info *sta;
 820
 821         sta = ap_get_sta(hapd, addr);
 822         if (sta == NULL)
 823                 return -1;
 824
 825         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 826         if (key == NULL)
 827                 return -1;
 828
 829         if (keylen > *len)
 830                 keylen = *len;
 831         os_memcpy(msk, key, keylen);
 832         *len = keylen;
 833
 834         return 0;
 835 }
 836
 837
 838 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, const char *alg,
 839                                     const u8 *addr, int idx, u8 *key,
 840                                     size_t key_len)
 841 {
 842         struct hostapd_data *hapd = ctx;
 843         const char *ifname = hapd->conf->iface;
 844
 845         if (vlan_id > 0) {
 846                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 847                 if (ifname == NULL)
 848                         return -1;
 849         }
 850
 851         return hostapd_set_encryption(ifname, hapd, alg, addr, idx,
 852                                       key, key_len, 1);
 853 }
 854
 855
 856 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 857                                        u8 *seq)
 858 {
 859         struct hostapd_data *hapd = ctx;
 860         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 861 }
 862
 863
 864 static int hostapd_wpa_auth_get_seqnum_igtk(void *ctx, const u8 *addr, int idx,
 865                                             u8 *seq)
 866 {
 867         struct hostapd_data *hapd = ctx;
 868         return hostapd_get_seqnum_igtk(hapd->conf->iface, hapd, addr, idx,
 869                                        seq);
 870 }
 871
 872
 873 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 874                                        const u8 *data, size_t data_len,
 875                                        int encrypt)
 876 {
 877         struct hostapd_data *hapd = ctx;
 878         return hostapd_send_eapol(hapd, addr, data, data_len, encrypt);
 879 }
 880
 881
 882 static int hostapd_wpa_auth_for_each_sta(
 883         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 884         void *cb_ctx)
 885 {
 886         struct hostapd_data *hapd = ctx;
 887         struct sta_info *sta;
 888
 889         for (sta = hapd->sta_list; sta; sta = sta->next) {
 890                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 891                         return 1;
 892         }
 893         return 0;
 894 }
 895
 896
 897 static int hostapd_wpa_auth_for_each_auth(
 898         void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
 899         void *cb_ctx)
 900 {
 901         struct hostapd_data *ohapd;
 902         size_t i, j;
 903         struct hapd_interfaces *interfaces = eloop_get_user_data();
 904
 905         for (i = 0; i < interfaces->count; i++) {
 906                 for (j = 0; j < interfaces->iface[i]->num_bss; j++) {
 907                         ohapd = interfaces->iface[i]->bss[j];
 908                         if (cb(ohapd->wpa_auth, cb_ctx))
 909                                 return 1;
 910                 }
 911         }
 912
 913         return 0;
 914 }
 915
 916
 917 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 918                                        const u8 *data, size_t data_len)
 919 {
 920         struct hostapd_data *hapd = ctx;
 921
 922         if (hapd->driver && hapd->driver->send_ether)
 923                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 924                                                 hapd->own_addr, proto,
 925                                                 data, data_len);
 926         if (hapd->l2 == NULL)
 927                 return -1;
 928         return l2_packet_send(hapd->l2, dst, proto, data, data_len);
 929 }
 930
 931
 932 #ifdef CONFIG_IEEE80211R
 933
 934 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 935                                            const u8 *data, size_t data_len)
 936 {
 937         struct hostapd_data *hapd = ctx;
 938         int res;
 939         struct ieee80211_mgmt *m;
 940         size_t mlen;
 941         struct sta_info *sta;
 942
 943         sta = ap_get_sta(hapd, dst);
 944         if (sta == NULL || sta->wpa_sm == NULL)
 945                 return -1;
 946
 947         m = os_zalloc(sizeof(*m) + data_len);
 948         if (m == NULL)
 949                 return -1;
 950         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 951         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 952                                         WLAN_FC_STYPE_ACTION);
 953         os_memcpy(m->da, dst, ETH_ALEN);
 954         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 955         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 956         os_memcpy(&m->u, data, data_len);
 957
 958         res = hostapd_send_mgmt_frame(hapd, (u8 *) m, mlen, 0);
 959         os_free(m);
 960         return res;
 961 }
 962
 963
 964 static struct wpa_state_machine *
 965 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 966 {
 967         struct hostapd_data *hapd = ctx;
 968         struct sta_info *sta;
 969
 970         sta = ap_sta_add(hapd, sta_addr);
 971         if (sta == NULL)
 972                 return NULL;
 973         if (sta->wpa_sm)
 974                 return sta->wpa_sm;
 975
 976         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
 977         if (sta->wpa_sm == NULL) {
 978                 ap_free_sta(hapd, sta);
 979                 return NULL;
 980         }
 981         sta->auth_alg = WLAN_AUTH_FT;
 982
 983         return sta->wpa_sm;
 984 }
 985
 986
 987 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 988                                 size_t len)
 989 {
 990         struct hostapd_data *hapd = ctx;
 991         wpa_ft_rrb_rx(hapd->wpa_auth, src_addr, buf, len);
 992 }
 993
 994 #endif /* CONFIG_IEEE80211R */
 995
 996
 997 /**
 998  * hostapd_validate_bssid_configuration - Validate BSSID configuration
 999  * @iface: Pointer to interface data
1000  * Returns: 0 on success, -1 on failure
1001  *
1002  * This function is used to validate that the configured BSSIDs are valid.
1003  */
1004 static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
1005 {
1006         u8 mask[ETH_ALEN] = { 0 };
1007         struct hostapd_data *hapd = iface->bss[0];
1008         unsigned int i = iface->conf->num_bss, bits = 0, j;
1009         int res;
1010
1011         if (hostapd_drv_none(hapd))
1012                 return 0;
1013
1014         /* Generate BSSID mask that is large enough to cover the BSSIDs. */
1015
1016         /* Determine the bits necessary to cover the number of BSSIDs. */
1017         for (i--; i; i >>= 1)
1018                 bits++;
1019
1020         /* Determine the bits necessary to any configured BSSIDs,
1021            if they are higher than the number of BSSIDs. */
1022         for (j = 0; j < iface->conf->num_bss; j++) {
1023                 if (hostapd_mac_comp_empty(iface->conf->bss[j].bssid) == 0)
1024                         continue;
1025
1026                 for (i = 0; i < ETH_ALEN; i++) {
1027                         mask[i] |=
1028                                 iface->conf->bss[j].bssid[i] ^
1029                                 hapd->own_addr[i];
1030                 }
1031         }
1032
1033         for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
1034                 ;
1035         j = 0;
1036         if (i < ETH_ALEN) {
1037                 j = (5 - i) * 8;
1038
1039                 while (mask[i] != 0) {
1040                         mask[i] >>= 1;
1041                         j++;
1042                 }
1043         }
1044
1045         if (bits < j)
1046                 bits = j;
1047
1048         if (bits > 40)
1049                 return -1;
1050
1051         os_memset(mask, 0xff, ETH_ALEN);
1052         j = bits / 8;
1053         for (i = 5; i > 5 - j; i--)
1054                 mask[i] = 0;
1055         j = bits % 8;
1056         while (j--)
1057                 mask[i] <<= 1;
1058
1059         wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
1060                    (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
1061
1062         res = hostapd_valid_bss_mask(hapd, hapd->own_addr, mask);
1063         if (res == 0)
1064                 return 0;
1065
1066         if (res < 0) {
1067                 wpa_printf(MSG_ERROR, "Driver did not accept BSSID mask "
1068                            MACSTR " for start address " MACSTR ".",
1069                            MAC2STR(mask), MAC2STR(hapd->own_addr));
1070                 return -1;
1071         }
1072
1073         for (i = 0; i < ETH_ALEN; i++) {
1074                 if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
1075                         wpa_printf(MSG_ERROR, "Invalid BSSID mask " MACSTR
1076                                    " for start address " MACSTR ".",
1077                                    MAC2STR(mask), MAC2STR(hapd->own_addr));
1078                         wpa_printf(MSG_ERROR, "Start address must be the "
1079                                    "first address in the block (i.e., addr "
1080                                    "AND mask == addr).");
1081                         return -1;
1082                 }
1083         }
1084
1085         return 0;
1086 }
1087
1088
1089 static int mac_in_conf(struct hostapd_config *conf, const void *a)
1090 {
1091         size_t i;
1092
1093         for (i = 0; i < conf->num_bss; i++) {
1094                 if (hostapd_mac_comp(conf->bss[i].bssid, a) == 0) {
1095                         return 1;
1096                 }
1097         }
1098
1099         return 0;
1100 }
1101
1102
1103 static int hostapd_setup_wpa(struct hostapd_data *hapd)
1104 {
1105         struct wpa_auth_config _conf;
1106         struct wpa_auth_callbacks cb;
1107         const u8 *wpa_ie;
1108         size_t wpa_ie_len;
1109
1110         hostapd_wpa_auth_conf(hapd->conf, &_conf);
1111         os_memset(&cb, 0, sizeof(cb));
1112         cb.ctx = hapd;
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                 wpa_printf(MSG_ERROR, "WPA initialization failed.");
1134                 return -1;
1135         }
1136
1137         if (hostapd_set_privacy(hapd, 1)) {
1138                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
1139                            "for interface %s", hapd->conf->iface);
1140                 return -1;
1141         }
1142
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.");
1147                 return -1;
1148         }
1149
1150         if (rsn_preauth_iface_init(hapd)) {
1151                 wpa_printf(MSG_ERROR, "Initialization of RSN "
1152                            "pre-authentication failed.");
1153                 return -1;
1154         }
1155
1156         return 0;
1157
1158 }
1159
1160
1161 static int hostapd_setup_radius_srv(struct hostapd_data *hapd,
1162                                     struct hostapd_bss_config *conf)
1163 {
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.wps = hapd->wps;
1181         srv.ipv6 = conf->radius_server_ipv6;
1182         srv.get_eap_user = hostapd_radius_get_eap_user;
1183         srv.eap_req_id_text = conf->eap_req_id_text;
1184         srv.eap_req_id_text_len = conf->eap_req_id_text_len;
1185
1186         hapd->radius_srv = radius_server_init(&srv);
1187         if (hapd->radius_srv == NULL) {
1188                 wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
1189                 return -1;
1190         }
1191
1192         return 0;
1193 }
1194
1195
1196 /**
1197  * hostapd_setup_bss - Per-BSS setup (initialization)
1198  * @hapd: Pointer to BSS data
1199  * @first: Whether this BSS is the first BSS of an interface
1200  *
1201  * This function is used to initialize all per-BSS data structures and
1202  * resources. This gets called in a loop for each BSS when an interface is
1203  * initialized. Most of the modules that are initialized here will be
1204  * deinitialized in hostapd_cleanup().
1205  */
1206 static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
1207 {
1208         struct hostapd_bss_config *conf = hapd->conf;
1209         u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
1210         int ssid_len, set_ssid;
1211
1212         if (!first) {
1213                 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
1214                         /* Allocate the next available BSSID. */
1215                         do {
1216                                 inc_byte_array(hapd->own_addr, ETH_ALEN);
1217                         } while (mac_in_conf(hapd->iconf, hapd->own_addr));
1218                 } else {
1219                         /* Allocate the configured BSSID. */
1220                         os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
1221
1222                         if (hostapd_mac_comp(hapd->own_addr,
1223                                              hapd->iface->bss[0]->own_addr) ==
1224                             0) {
1225                                 wpa_printf(MSG_ERROR, "BSS '%s' may not have "
1226                                            "BSSID set to the MAC address of "
1227                                            "the radio", hapd->conf->iface);
1228                                 return -1;
1229                         }
1230                 }
1231
1232                 hapd->interface_added = 1;
1233                 if (hostapd_bss_add(hapd->iface->bss[0], hapd->conf->iface,
1234                                     hapd->own_addr)) {
1235                         wpa_printf(MSG_ERROR, "Failed to add BSS (BSSID="
1236                                    MACSTR ")", MAC2STR(hapd->own_addr));
1237                         return -1;
1238                 }
1239         }
1240
1241         /*
1242          * Fetch the SSID from the system and use it or,
1243          * if one was specified in the config file, verify they
1244          * match.
1245          */
1246         ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
1247         if (ssid_len < 0) {
1248                 wpa_printf(MSG_ERROR, "Could not read SSID from system");
1249                 return -1;
1250         }
1251         if (conf->ssid.ssid_set) {
1252                 /*
1253                  * If SSID is specified in the config file and it differs
1254                  * from what is being used then force installation of the
1255                  * new SSID.
1256                  */
1257                 set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
1258                             os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
1259         } else {
1260                 /*
1261                  * No SSID in the config file; just use the one we got
1262                  * from the system.
1263                  */
1264                 set_ssid = 0;
1265                 conf->ssid.ssid_len = ssid_len;
1266                 os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
1267                 conf->ssid.ssid[conf->ssid.ssid_len] = '\0';
1268         }
1269
1270         if (!hostapd_drv_none(hapd)) {
1271                 wpa_printf(MSG_ERROR, "Using interface %s with hwaddr " MACSTR
1272                            " and ssid '%s'",
1273                            hapd->conf->iface, MAC2STR(hapd->own_addr),
1274                            hapd->conf->ssid.ssid);
1275         }
1276
1277         if (hostapd_setup_wpa_psk(conf)) {
1278                 wpa_printf(MSG_ERROR, "WPA-PSK setup failed.");
1279                 return -1;
1280         }
1281
1282         /* Set flag for whether SSID is broadcast in beacons */
1283         if (hostapd_set_broadcast_ssid(hapd,
1284                                        !!hapd->conf->ignore_broadcast_ssid)) {
1285                 wpa_printf(MSG_ERROR, "Could not set broadcast SSID flag for "
1286                            "kernel driver");
1287                 return -1;
1288         }
1289
1290         if (hostapd_set_dtim_period(hapd, hapd->conf->dtim_period)) {
1291                 wpa_printf(MSG_ERROR, "Could not set DTIM period for kernel "
1292                            "driver");
1293                 return -1;
1294         }
1295
1296         /* Set SSID for the kernel driver (to be used in beacon and probe
1297          * response frames) */
1298         if (set_ssid && hostapd_set_ssid(hapd, (u8 *) conf->ssid.ssid,
1299                                          conf->ssid.ssid_len)) {
1300                 wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
1301                 return -1;
1302         }
1303
1304         if (wpa_debug_level == MSG_MSGDUMP)
1305                 conf->radius->msg_dumps = 1;
1306         hapd->radius = radius_client_init(hapd, conf->radius);
1307         if (hapd->radius == NULL) {
1308                 wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
1309                 return -1;
1310         }
1311
1312         if (hostapd_acl_init(hapd)) {
1313                 wpa_printf(MSG_ERROR, "ACL initialization failed.");
1314                 return -1;
1315         }
1316         if (hostapd_init_wps(hapd, conf))
1317                 return -1;
1318
1319         if (ieee802_1x_init(hapd)) {
1320                 wpa_printf(MSG_ERROR, "IEEE 802.1X initialization failed.");
1321                 return -1;
1322         }
1323
1324         if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
1325                 return -1;
1326
1327         if (accounting_init(hapd)) {
1328                 wpa_printf(MSG_ERROR, "Accounting initialization failed.");
1329                 return -1;
1330         }
1331
1332         if (hapd->conf->ieee802_11f &&
1333             (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
1334                 wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
1335                            "failed.");
1336                 return -1;
1337         }
1338
1339         if (hostapd_ctrl_iface_init(hapd)) {
1340                 wpa_printf(MSG_ERROR, "Failed to setup control interface");
1341                 return -1;
1342         }
1343
1344         if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
1345                 wpa_printf(MSG_ERROR, "VLAN initialization failed.");
1346                 return -1;
1347         }
1348
1349 #ifdef CONFIG_IEEE80211R
1350         if (!hostapd_drv_none(hapd)) {
1351                 hapd->l2 = l2_packet_init(hapd->conf->iface, NULL, ETH_P_RRB,
1352                                           hostapd_rrb_receive, hapd, 0);
1353                 if (hapd->l2 == NULL &&
1354                     (hapd->driver == NULL ||
1355                      hapd->driver->send_ether == NULL)) {
1356                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
1357                                    "interface");
1358                         return -1;
1359                 }
1360         }
1361 #endif /* CONFIG_IEEE80211R */
1362
1363         ieee802_11_set_beacon(hapd);
1364
1365         if (conf->radius_server_clients &&
1366             hostapd_setup_radius_srv(hapd, conf))
1367                 return -1;
1368
1369         return 0;
1370 }
1371
1372
1373 static void hostapd_tx_queue_params(struct hostapd_iface *iface)
1374 {
1375         struct hostapd_data *hapd = iface->bss[0];
1376         int i;
1377         struct hostapd_tx_queue_params *p;
1378
1379         for (i = 0; i < NUM_TX_QUEUES; i++) {
1380                 p = &iface->conf->tx_queue[i];
1381
1382                 if (!p->configured)
1383                         continue;
1384
1385                 if (hostapd_set_tx_queue_params(hapd, i, p->aifs, p->cwmin,
1386                                                 p->cwmax, p->burst)) {
1387                         wpa_printf(MSG_DEBUG, "Failed to set TX queue "
1388                                    "parameters for queue %d.", i);
1389                         /* Continue anyway */
1390                 }
1391         }
1392 }
1393
1394
1395 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
1396                                        size_t identity_len, int phase2,
1397                                        struct eap_user *user)
1398 {
1399         const struct hostapd_eap_user *eap_user;
1400         int i, count;
1401
1402         eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
1403         if (eap_user == NULL)
1404                 return -1;
1405
1406         if (user == NULL)
1407                 return 0;
1408
1409         os_memset(user, 0, sizeof(*user));
1410         count = EAP_USER_MAX_METHODS;
1411         if (count > EAP_MAX_METHODS)
1412                 count = EAP_MAX_METHODS;
1413         for (i = 0; i < count; i++) {
1414                 user->methods[i].vendor = eap_user->methods[i].vendor;
1415                 user->methods[i].method = eap_user->methods[i].method;
1416         }
1417
1418         if (eap_user->password) {
1419                 user->password = os_malloc(eap_user->password_len);
1420                 if (user->password == NULL)
1421                         return -1;
1422                 os_memcpy(user->password, eap_user->password,
1423                           eap_user->password_len);
1424                 user->password_len = eap_user->password_len;
1425                 user->password_hash = eap_user->password_hash;
1426         }
1427         user->force_version = eap_user->force_version;
1428         user->ttls_auth = eap_user->ttls_auth;
1429
1430         return 0;
1431 }
1432
1433
1434 static int setup_interface(struct hostapd_iface *iface)
1435 {
1436         struct hostapd_data *hapd = iface->bss[0];
1437         struct hostapd_bss_config *conf = hapd->conf;
1438         size_t i;
1439         char country[4];
1440         u8 *b = conf->bssid;
1441         int freq;
1442         size_t j;
1443         int ret = 0;
1444         u8 *prev_addr;
1445
1446         /*
1447          * Initialize the driver interface and make sure that all BSSes get
1448          * configured with a pointer to this driver interface.
1449          */
1450         if (b[0] | b[1] | b[2] | b[3] | b[4] | b[5]) {
1451                 hapd->drv_priv = hostapd_driver_init_bssid(hapd, b);
1452         } else {
1453                 hapd->drv_priv = hostapd_driver_init(hapd);
1454         }
1455
1456         if (hapd->drv_priv == NULL) {
1457                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
1458                            hapd->driver ? hapd->driver->name : "Unknown");
1459                 hapd->driver = NULL;
1460                 return -1;
1461         }
1462         for (i = 0; i < iface->num_bss; i++) {
1463                 iface->bss[i]->driver = hapd->driver;
1464                 iface->bss[i]->drv_priv = hapd->drv_priv;
1465         }
1466
1467         if (hostapd_validate_bssid_configuration(iface))
1468                 return -1;
1469
1470 #ifdef CONFIG_IEEE80211N
1471         SET_2BIT_LE16(&iface->ht_op_mode,
1472                       HT_INFO_OPERATION_MODE_OP_MODE_OFFSET,
1473                       OP_MODE_PURE);
1474 #endif /* CONFIG_IEEE80211N */
1475
1476         os_memcpy(country, hapd->iconf->country, 3);
1477         country[3] = '\0';
1478         if (hostapd_set_country(hapd, country) < 0) {
1479                 wpa_printf(MSG_ERROR, "Failed to set country code");
1480                 return -1;
1481         }
1482
1483         if (hapd->iconf->ieee80211d &&
1484             hostapd_set_ieee80211d(hapd, 1) < 0) {
1485                 wpa_printf(MSG_ERROR, "Failed to set ieee80211d (%d)",
1486                            hapd->iconf->ieee80211d);
1487                 return -1;
1488         }
1489
1490         if (hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
1491             hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets)) {
1492                 wpa_printf(MSG_ERROR, "Failed to set bridge_packets for "
1493                            "kernel driver");
1494                 return -1;
1495         }
1496
1497         /* TODO: merge with hostapd_driver_init() ? */
1498         if (hostapd_wireless_event_init(hapd) < 0)
1499                 return -1;
1500
1501         if (hostapd_get_hw_features(iface)) {
1502                 /* Not all drivers support this yet, so continue without hw
1503                  * feature data. */
1504         } else {
1505                 int ret = hostapd_select_hw_mode(iface);
1506                 if (ret < 0) {
1507                         wpa_printf(MSG_ERROR, "Could not select hw_mode and "
1508                                    "channel. (%d)", ret);
1509                         return -1;
1510                 }
1511         }
1512
1513         hostapd_flush_old_stations(hapd);
1514         hostapd_set_privacy(hapd, 0);
1515
1516         if (hapd->iconf->channel) {
1517                 freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
1518                 wpa_printf(MSG_DEBUG, "Mode: %s  Channel: %d  "
1519                            "Frequency: %d MHz",
1520                            hostapd_hw_mode_txt(hapd->iconf->hw_mode),
1521                            hapd->iconf->channel, freq);
1522
1523                 if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq,
1524                                      hapd->iconf->ieee80211n,
1525                                      hapd->iconf->secondary_channel)) {
1526                         wpa_printf(MSG_ERROR, "Could not set channel for "
1527                                    "kernel driver");
1528                         return -1;
1529                 }
1530         }
1531
1532         hostapd_broadcast_wep_clear(hapd);
1533         if (hostapd_setup_encryption(hapd->conf->iface, hapd))
1534                 return -1;
1535
1536         hostapd_set_beacon_int(hapd, hapd->iconf->beacon_int);
1537         ieee802_11_set_beacon(hapd);
1538
1539         if (hapd->iconf->rts_threshold > -1 &&
1540             hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
1541                 wpa_printf(MSG_ERROR, "Could not set RTS threshold for "
1542                            "kernel driver");
1543                 return -1;
1544         }
1545
1546         if (hapd->iconf->fragm_threshold > -1 &&
1547             hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
1548                 wpa_printf(MSG_ERROR, "Could not set fragmentation threshold "
1549                            "for kernel driver");
1550                 return -1;
1551         }
1552
1553         prev_addr = hapd->own_addr;
1554
1555         for (j = 0; j < iface->num_bss; j++) {
1556                 hapd = iface->bss[j];
1557                 if (j)
1558                         os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
1559                 if (hostapd_setup_bss(hapd, j == 0))
1560                         return -1;
1561                 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
1562                         prev_addr = hapd->own_addr;
1563         }
1564
1565         hostapd_tx_queue_params(iface);
1566
1567         ap_list_init(iface);
1568
1569         if (hostapd_driver_commit(hapd) < 0) {
1570                 wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
1571                            "configuration", __func__);
1572                 return -1;
1573         }
1574
1575         return ret;
1576 }
1577
1578
1579 /**
1580  * hostapd_setup_interface - Setup of an interface
1581  * @iface: Pointer to interface data.
1582  * Returns: 0 on success, -1 on failure
1583  *
1584  * Initializes the driver interface, validates the configuration,
1585  * and sets driver parameters based on the configuration.
1586  * Flushes old stations, sets the channel, encryption,
1587  * beacons, and WDS links based on the configuration.
1588  */
1589 static int hostapd_setup_interface(struct hostapd_iface *iface)
1590 {
1591         int ret;
1592
1593         ret = setup_interface(iface);
1594         if (ret) {
1595                 wpa_printf(MSG_DEBUG, "%s: Unable to setup interface.",
1596                            iface->bss[0]->conf->iface);
1597                 eloop_terminate();
1598                 return -1;
1599         } else if (!hostapd_drv_none(iface->bss[0])) {
1600                 wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
1601                            iface->bss[0]->conf->iface);
1602         }
1603
1604         return 0;
1605 }
1606
1607
1608 static void show_version(void)
1609 {
1610         fprintf(stderr,
1611                 "hostapd v" VERSION_STR "\n"
1612                 "User space daemon for IEEE 802.11 AP management,\n"
1613                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
1614                 "Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi> "
1615                 "and contributors\n");
1616 }
1617
1618
1619 static void usage(void)
1620 {
1621         show_version();
1622         fprintf(stderr,
1623                 "\n"
1624                 "usage: hostapd [-hdBKtv] [-P <PID file>] "
1625                 "<configuration file(s)>\n"
1626                 "\n"
1627                 "options:\n"
1628                 "   -h   show this usage\n"
1629                 "   -d   show more debug messages (-dd for even more)\n"
1630                 "   -B   run daemon in the background\n"
1631                 "   -P   PID file\n"
1632                 "   -K   include key data in debug messages\n"
1633                 "   -t   include timestamps in some debug messages\n"
1634                 "   -v   show hostapd version\n");
1635
1636         exit(1);
1637 }
1638
1639
1640 /**
1641  * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
1642  * @hapd_iface: Pointer to interface data
1643  * @conf: Pointer to per-interface configuration
1644  * @bss: Pointer to per-BSS configuration for this BSS
1645  * Returns: Pointer to allocated BSS data
1646  *
1647  * This function is used to allocate per-BSS data structure. This data will be
1648  * freed after hostapd_cleanup() is called for it during interface
1649  * deinitialization.
1650  */
1651 static struct hostapd_data *
1652 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
1653                        struct hostapd_config *conf,
1654                        struct hostapd_bss_config *bss)
1655 {
1656         struct hostapd_data *hapd;
1657
1658         hapd = os_zalloc(sizeof(*hapd));
1659         if (hapd == NULL)
1660                 return NULL;
1661
1662         hapd->iconf = conf;
1663         hapd->conf = bss;
1664         hapd->iface = hapd_iface;
1665
1666         if (hapd->conf->individual_wep_key_len > 0) {
1667                 /* use key0 in individual key and key1 in broadcast key */
1668                 hapd->default_wep_key_idx = 1;
1669         }
1670
1671 #ifdef EAP_TLS_FUNCS
1672         if (hapd->conf->eap_server &&
1673             (hapd->conf->ca_cert || hapd->conf->server_cert ||
1674              hapd->conf->dh_file)) {
1675                 struct tls_connection_params params;
1676
1677                 hapd->ssl_ctx = tls_init(NULL);
1678                 if (hapd->ssl_ctx == NULL) {
1679                         wpa_printf(MSG_ERROR, "Failed to initialize TLS");
1680                         goto fail;
1681                 }
1682
1683                 os_memset(&params, 0, sizeof(params));
1684                 params.ca_cert = hapd->conf->ca_cert;
1685                 params.client_cert = hapd->conf->server_cert;
1686                 params.private_key = hapd->conf->private_key;
1687                 params.private_key_passwd = hapd->conf->private_key_passwd;
1688                 params.dh_file = hapd->conf->dh_file;
1689
1690                 if (tls_global_set_params(hapd->ssl_ctx, &params)) {
1691                         wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
1692                         goto fail;
1693                 }
1694
1695                 if (tls_global_set_verify(hapd->ssl_ctx,
1696                                           hapd->conf->check_crl)) {
1697                         wpa_printf(MSG_ERROR, "Failed to enable check_crl");
1698                         goto fail;
1699                 }
1700         }
1701 #endif /* EAP_TLS_FUNCS */
1702
1703 #ifdef EAP_SERVER
1704         if (hapd->conf->eap_sim_db) {
1705                 hapd->eap_sim_db_priv =
1706                         eap_sim_db_init(hapd->conf->eap_sim_db,
1707                                         hostapd_sim_db_cb, hapd);
1708                 if (hapd->eap_sim_db_priv == NULL) {
1709                         wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
1710                                    "database interface");
1711                         goto fail;
1712                 }
1713         }
1714 #endif /* EAP_SERVER */
1715
1716         hapd->driver = hapd->iconf->driver;
1717
1718         return hapd;
1719
1720 #if defined(EAP_TLS_FUNCS) || defined(EAP_SERVER)
1721 fail:
1722 #endif
1723         /* TODO: cleanup allocated resources(?) */
1724         os_free(hapd);
1725         return NULL;
1726 }
1727
1728
1729 /**
1730  * hostapd_init - Allocate and initialize per-interface data
1731  * @config_file: Path to the configuration file
1732  * Returns: Pointer to the allocated interface data or %NULL on failure
1733  *
1734  * This function is used to allocate main data structures for per-interface
1735  * data. The allocated data buffer will be freed by calling
1736  * hostapd_cleanup_iface().
1737  */
1738 static struct hostapd_iface * hostapd_init(const char *config_file)
1739 {
1740         struct hostapd_iface *hapd_iface = NULL;
1741         struct hostapd_config *conf = NULL;
1742         struct hostapd_data *hapd;
1743         size_t i;
1744
1745         hapd_iface = os_zalloc(sizeof(*hapd_iface));
1746         if (hapd_iface == NULL)
1747                 goto fail;
1748
1749         hapd_iface->config_fname = os_strdup(config_file);
1750         if (hapd_iface->config_fname == NULL)
1751                 goto fail;
1752
1753         conf = hostapd_config_read(hapd_iface->config_fname);
1754         if (conf == NULL)
1755                 goto fail;
1756         hapd_iface->conf = conf;
1757
1758         hapd_iface->num_bss = conf->num_bss;
1759         hapd_iface->bss = os_zalloc(conf->num_bss *
1760                                     sizeof(struct hostapd_data *));
1761         if (hapd_iface->bss == NULL)
1762                 goto fail;
1763
1764         for (i = 0; i < conf->num_bss; i++) {
1765                 hapd = hapd_iface->bss[i] =
1766                         hostapd_alloc_bss_data(hapd_iface, conf,
1767                                                &conf->bss[i]);
1768                 if (hapd == NULL)
1769                         goto fail;
1770         }
1771
1772         return hapd_iface;
1773
1774 fail:
1775         if (conf)
1776                 hostapd_config_free(conf);
1777         if (hapd_iface) {
1778                 for (i = 0; hapd_iface->bss && i < hapd_iface->num_bss; i++) {
1779                         hapd = hapd_iface->bss[i];
1780                         if (hapd && hapd->ssl_ctx)
1781                                 tls_deinit(hapd->ssl_ctx);
1782                 }
1783
1784                 os_free(hapd_iface->config_fname);
1785                 os_free(hapd_iface->bss);
1786                 os_free(hapd_iface);
1787         }
1788         return NULL;
1789 }
1790
1791
1792 int main(int argc, char *argv[])
1793 {
1794         struct hapd_interfaces interfaces;
1795         int ret = 1, k;
1796         size_t i, j;
1797         int c, debug = 0, daemonize = 0, tnc = 0;
1798         const char *pid_file = NULL;
1799
1800         hostapd_logger_register_cb(hostapd_logger_cb);
1801
1802         for (;;) {
1803                 c = getopt(argc, argv, "BdhKP:tv");
1804                 if (c < 0)
1805                         break;
1806                 switch (c) {
1807                 case 'h':
1808                         usage();
1809                         break;
1810                 case 'd':
1811                         debug++;
1812                         if (wpa_debug_level > 0)
1813                                 wpa_debug_level--;
1814                         break;
1815                 case 'B':
1816                         daemonize++;
1817                         break;
1818                 case 'K':
1819                         wpa_debug_show_keys++;
1820                         break;
1821                 case 'P':
1822                         pid_file = optarg;
1823                         break;
1824                 case 't':
1825                         wpa_debug_timestamp++;
1826                         break;
1827                 case 'v':
1828                         show_version();
1829                         exit(1);
1830                         break;
1831
1832                 default:
1833                         usage();
1834                         break;
1835                 }
1836         }
1837
1838         if (optind == argc)
1839                 usage();
1840
1841         if (eap_server_register_methods()) {
1842                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1843                 return -1;
1844         }
1845
1846         interfaces.count = argc - optind;
1847
1848         interfaces.iface = os_malloc(interfaces.count *
1849                                      sizeof(struct hostapd_iface *));
1850         if (interfaces.iface == NULL) {
1851                 wpa_printf(MSG_ERROR, "malloc failed\n");
1852                 return -1;
1853         }
1854
1855         if (eloop_init(&interfaces)) {
1856                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1857                 return -1;
1858         }
1859
1860 #ifndef CONFIG_NATIVE_WINDOWS
1861         eloop_register_signal(SIGHUP, handle_reload, NULL);
1862         eloop_register_signal(SIGUSR1, handle_dump_state, NULL);
1863 #endif /* CONFIG_NATIVE_WINDOWS */
1864         eloop_register_signal_terminate(handle_term, NULL);
1865
1866         /* Initialize interfaces */
1867         for (i = 0; i < interfaces.count; i++) {
1868                 wpa_printf(MSG_ERROR, "Configuration file: %s",
1869                            argv[optind + i]);
1870                 interfaces.iface[i] = hostapd_init(argv[optind + i]);
1871                 if (!interfaces.iface[i])
1872                         goto out;
1873                 for (k = 0; k < debug; k++) {
1874                         if (interfaces.iface[i]->bss[0]->conf->
1875                             logger_stdout_level > 0)
1876                                 interfaces.iface[i]->bss[0]->conf->
1877                                         logger_stdout_level--;
1878                 }
1879
1880                 ret = hostapd_setup_interface(interfaces.iface[i]);
1881                 if (ret)
1882                         goto out;
1883
1884                 for (k = 0; k < (int) interfaces.iface[i]->num_bss; k++) {
1885                         if (interfaces.iface[i]->bss[0]->conf->tnc)
1886                                 tnc++;
1887                 }
1888         }
1889
1890 #ifdef EAP_TNC
1891         if (tnc && tncs_global_init() < 0) {
1892                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
1893                 goto out;
1894         }
1895 #endif /* EAP_TNC */
1896
1897         if (daemonize && os_daemonize(pid_file)) {
1898                 perror("daemon");
1899                 goto out;
1900         }
1901
1902 #ifndef CONFIG_NATIVE_WINDOWS
1903         openlog("hostapd", 0, LOG_DAEMON);
1904 #endif /* CONFIG_NATIVE_WINDOWS */
1905
1906         eloop_run();
1907
1908         /* Disconnect associated stations from all interfaces and BSSes */
1909         for (i = 0; i < interfaces.count; i++) {
1910                 for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
1911                         struct hostapd_data *hapd =
1912                                 interfaces.iface[i]->bss[j];
1913                         hostapd_free_stas(hapd);
1914                         hostapd_flush_old_stations(hapd);
1915                 }
1916         }
1917
1918         ret = 0;
1919
1920  out:
1921         /* Deinitialize all interfaces */
1922         for (i = 0; i < interfaces.count; i++) {
1923                 if (!interfaces.iface[i])
1924                         continue;
1925                 hostapd_cleanup_iface_pre(interfaces.iface[i]);
1926                 for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
1927                         struct hostapd_data *hapd =
1928                                 interfaces.iface[i]->bss[j];
1929                         hostapd_cleanup(hapd);
1930                         if (j == interfaces.iface[i]->num_bss - 1 &&
1931                             hapd->driver)
1932                                 hostapd_driver_deinit(hapd);
1933                 }
1934                 for (j = 0; j < interfaces.iface[i]->num_bss; j++)
1935                         os_free(interfaces.iface[i]->bss[j]);
1936                 hostapd_cleanup_iface(interfaces.iface[i]);
1937         }
1938         os_free(interfaces.iface);
1939
1940 #ifdef EAP_TNC
1941         tncs_global_deinit();
1942 #endif /* EAP_TNC */
1943
1944         eloop_destroy();
1945
1946 #ifndef CONFIG_NATIVE_WINDOWS
1947         closelog();
1948 #endif /* CONFIG_NATIVE_WINDOWS */
1949
1950         eap_server_unregister_methods();
1951
1952         os_daemonize_terminate(pid_file);
1953
1954         return ret;
1955 }