hostapd/hostapd.c

   1 /*
   2  * hostapd / Initialization and configuration
   3  * Copyright (c) 2002-2008, 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 "ieee802_11.h"
  24 #include "beacon.h"
  25 #include "hw_features.h"
  26 #include "accounting.h"
  27 #include "eapol_sm.h"
  28 #include "iapp.h"
  29 #include "ap.h"
  30 #include "ieee802_11_auth.h"
  31 #include "ap_list.h"
  32 #include "sta_info.h"
  33 #include "driver.h"
  34 #include "radius/radius_client.h"
  35 #include "radius/radius_server.h"
  36 #include "wpa.h"
  37 #include "preauth.h"
  38 #include "wme.h"
  39 #include "vlan_init.h"
  40 #include "ctrl_iface.h"
  41 #include "tls.h"
  42 #include "eap_server/eap_sim_db.h"
  43 #include "eap_server/eap.h"
  44 #include "eap_server/tncs.h"
  45 #include "version.h"
  46 #include "l2_packet/l2_packet.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
  53 struct hapd_interfaces {
  54         size_t count;
  55         struct hostapd_iface **iface;
  56 };
  57
  58 unsigned char rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
  59
  60
  61 extern int wpa_debug_level;
  62 extern int wpa_debug_show_keys;
  63 extern int wpa_debug_timestamp;
  64
  65
  66 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  67                               int level, const char *txt, size_t len)
  68 {
  69         struct hostapd_data *hapd = ctx;
  70         char *format, *module_str;
  71         int maxlen;
  72         int conf_syslog_level, conf_stdout_level;
  73         unsigned int conf_syslog, conf_stdout;
  74
  75         maxlen = len + 100;
  76         format = os_malloc(maxlen);
  77         if (!format)
  78                 return;
  79
  80         if (hapd && hapd->conf) {
  81                 conf_syslog_level = hapd->conf->logger_syslog_level;
  82                 conf_stdout_level = hapd->conf->logger_stdout_level;
  83                 conf_syslog = hapd->conf->logger_syslog;
  84                 conf_stdout = hapd->conf->logger_stdout;
  85         } else {
  86                 conf_syslog_level = conf_stdout_level = 0;
  87                 conf_syslog = conf_stdout = (unsigned int) -1;
  88         }
  89
  90         switch (module) {
  91         case HOSTAPD_MODULE_IEEE80211:
  92                 module_str = "IEEE 802.11";
  93                 break;
  94         case HOSTAPD_MODULE_IEEE8021X:
  95                 module_str = "IEEE 802.1X";
  96                 break;
  97         case HOSTAPD_MODULE_RADIUS:
  98                 module_str = "RADIUS";
  99                 break;
 100         case HOSTAPD_MODULE_WPA:
 101                 module_str = "WPA";
 102                 break;
 103         case HOSTAPD_MODULE_DRIVER:
 104                 module_str = "DRIVER";
 105                 break;
 106         case HOSTAPD_MODULE_IAPP:
 107                 module_str = "IAPP";
 108                 break;
 109         case HOSTAPD_MODULE_MLME:
 110                 module_str = "MLME";
 111                 break;
 112         default:
 113                 module_str = NULL;
 114                 break;
 115         }
 116
 117         if (hapd && hapd->conf && addr)
 118                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
 119                             hapd->conf->iface, MAC2STR(addr),
 120                             module_str ? " " : "", module_str, txt);
 121         else if (hapd && hapd->conf)
 122                 os_snprintf(format, maxlen, "%s:%s%s %s",
 123                             hapd->conf->iface, module_str ? " " : "",
 124                             module_str, txt);
 125         else if (addr)
 126                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 127                             MAC2STR(addr), module_str ? " " : "",
 128                             module_str, txt);
 129         else
 130                 os_snprintf(format, maxlen, "%s%s%s",
 131                             module_str, module_str ? ": " : "", txt);
 132
 133         if ((conf_stdout & module) && level >= conf_stdout_level) {
 134                 wpa_debug_print_timestamp();
 135                 printf("%s\n", format);
 136         }
 137
 138 #ifndef CONFIG_NATIVE_WINDOWS
 139         if ((conf_syslog & module) && level >= conf_syslog_level) {
 140                 int priority;
 141                 switch (level) {
 142                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 143                 case HOSTAPD_LEVEL_DEBUG:
 144                         priority = LOG_DEBUG;
 145                         break;
 146                 case HOSTAPD_LEVEL_INFO:
 147                         priority = LOG_INFO;
 148                         break;
 149                 case HOSTAPD_LEVEL_NOTICE:
 150                         priority = LOG_NOTICE;
 151                         break;
 152                 case HOSTAPD_LEVEL_WARNING:
 153                         priority = LOG_WARNING;
 154                         break;
 155                 default:
 156                         priority = LOG_INFO;
 157                         break;
 158                 }
 159                 syslog(priority, "%s", format);
 160         }
 161 #endif /* CONFIG_NATIVE_WINDOWS */
 162
 163         os_free(format);
 164 }
 165
 166
 167 static void hostapd_deauth_all_stas(struct hostapd_data *hapd)
 168 {
 169 #if 0
 170         u8 addr[ETH_ALEN];
 171
 172         os_memset(addr, 0xff, ETH_ALEN);
 173         hostapd_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
 174 #else
 175         /* New Prism2.5/3 STA firmware versions seem to have issues with this
 176          * broadcast deauth frame. This gets the firmware in odd state where
 177          * nothing works correctly, so let's skip sending this for a while
 178          * until the issue has been resolved. */
 179 #endif
 180 }
 181
 182
 183 /**
 184  * hostapd_prune_associations - Remove extraneous associations
 185  * @hapd: Pointer to BSS data for the most recent association
 186  * @sta: Pointer to the associated STA data
 187  *
 188  * This function looks through all radios and BSS's for previous
 189  * (stale) associations of STA. If any are found they are removed.
 190  */
 191 static void hostapd_prune_associations(struct hostapd_data *hapd,
 192                                        struct sta_info *sta)
 193 {
 194         struct sta_info *osta;
 195         struct hostapd_data *ohapd;
 196         size_t i, j;
 197         struct hapd_interfaces *interfaces = eloop_get_user_data();
 198
 199         for (i = 0; i < interfaces->count; i++) {
 200                 for (j = 0; j < interfaces->iface[i]->num_bss; j++) {
 201                         ohapd = interfaces->iface[i]->bss[j];
 202                         if (ohapd == hapd)
 203                                 continue;
 204                         osta = ap_get_sta(ohapd, sta->addr);
 205                         if (!osta)
 206                                 continue;
 207
 208                         ap_sta_disassociate(ohapd, osta,
 209                                             WLAN_REASON_UNSPECIFIED);
 210                 }
 211         }
 212 }
 213
 214
 215 /**
 216  * hostapd_new_assoc_sta - Notify that a new station associated with the AP
 217  * @hapd: Pointer to BSS data
 218  * @sta: Pointer to the associated STA data
 219  * @reassoc: 1 to indicate this was a re-association; 0 = first association
 220  *
 221  * This function will be called whenever a station associates with the AP. It
 222  * can be called for ieee802_11.c for drivers that export MLME to hostapd and
 223  * from driver_*.c for drivers that take care of management frames (IEEE 802.11
 224  * authentication and association) internally.
 225  */
 226 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
 227                            int reassoc)
 228 {
 229         if (hapd->tkip_countermeasures) {
 230                 hostapd_sta_deauth(hapd, sta->addr,
 231                                    WLAN_REASON_MICHAEL_MIC_FAILURE);
 232                 return;
 233         }
 234
 235         hostapd_prune_associations(hapd, sta);
 236
 237         /* IEEE 802.11F (IAPP) */
 238         if (hapd->conf->ieee802_11f)
 239                 iapp_new_station(hapd->iapp, sta);
 240
 241         /* Start accounting here, if IEEE 802.1X and WPA are not used.
 242          * IEEE 802.1X/WPA code will start accounting after the station has
 243          * been authorized. */
 244         if (!hapd->conf->ieee802_1x && !hapd->conf->wpa)
 245                 accounting_sta_start(hapd, sta);
 246
 247         hostapd_wme_sta_config(hapd, sta);
 248
 249         /* Start IEEE 802.1X authentication process for new stations */
 250         ieee802_1x_new_station(hapd, sta);
 251         if (reassoc) {
 252                 if (sta->auth_alg != WLAN_AUTH_FT)
 253                         wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH);
 254         } else
 255                 wpa_auth_sta_associated(hapd->wpa_auth, sta->wpa_sm);
 256 }
 257
 258
 259 #ifdef EAP_SERVER
 260 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
 261                                  struct sta_info *sta, void *ctx)
 262 {
 263         if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
 264                 return 1;
 265         return 0;
 266 }
 267
 268
 269 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
 270 {
 271         struct hostapd_data *hapd = ctx;
 272         if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0)
 273                 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
 274 }
 275 #endif /* EAP_SERVER */
 276
 277
 278 static void handle_term(int sig, void *eloop_ctx, void *signal_ctx)
 279 {
 280         printf("Signal %d received - terminating\n", sig);
 281         eloop_terminate();
 282 }
 283
 284
 285 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
 286                                   struct wpa_auth_config *wconf)
 287 {
 288         wconf->wpa = conf->wpa;
 289         wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
 290         wconf->wpa_pairwise = conf->wpa_pairwise;
 291         wconf->wpa_group = conf->wpa_group;
 292         wconf->wpa_group_rekey = conf->wpa_group_rekey;
 293         wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
 294         wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
 295         wconf->rsn_pairwise = conf->rsn_pairwise;
 296         wconf->rsn_preauth = conf->rsn_preauth;
 297         wconf->eapol_version = conf->eapol_version;
 298         wconf->peerkey = conf->peerkey;
 299         wconf->wme_enabled = conf->wme_enabled;
 300 #ifdef CONFIG_IEEE80211W
 301         wconf->ieee80211w = conf->ieee80211w;
 302 #endif /* CONFIG_IEEE80211W */
 303 #ifdef CONFIG_IEEE80211R
 304         wconf->ssid_len = conf->ssid.ssid_len;
 305         if (wconf->ssid_len > SSID_LEN)
 306                 wconf->ssid_len = SSID_LEN;
 307         os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
 308         os_memcpy(wconf->mobility_domain, conf->mobility_domain,
 309                   MOBILITY_DOMAIN_ID_LEN);
 310         if (conf->nas_identifier &&
 311             os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
 312                 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
 313                 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
 314                           wconf->r0_key_holder_len);
 315         }
 316         os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
 317         wconf->r0_key_lifetime = conf->r0_key_lifetime;
 318         wconf->reassociation_deadline = conf->reassociation_deadline;
 319         wconf->r0kh_list = conf->r0kh_list;
 320         wconf->r1kh_list = conf->r1kh_list;
 321         wconf->pmk_r1_push = conf->pmk_r1_push;
 322 #endif /* CONFIG_IEEE80211R */
 323 }
 324
 325
 326 #ifndef CONFIG_NATIVE_WINDOWS
 327 static void handle_reload(int sig, void *eloop_ctx, void *signal_ctx)
 328 {
 329         struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
 330         struct hostapd_config *newconf;
 331         size_t i;
 332         struct wpa_auth_config wpa_auth_conf;
 333
 334         printf("Signal %d received - reloading configuration\n", sig);
 335
 336         for (i = 0; i < hapds->count; i++) {
 337                 struct hostapd_data *hapd = hapds->iface[i]->bss[0];
 338                 newconf = hostapd_config_read(hapds->iface[i]->config_fname);
 339                 if (newconf == NULL) {
 340                         printf("Failed to read new configuration file - "
 341                                "continuing with old.\n");
 342                         continue;
 343                 }
 344                 /* TODO: update dynamic data based on changed configuration
 345                  * items (e.g., open/close sockets, remove stations added to
 346                  * deny list, etc.) */
 347                 radius_client_flush(hapd->radius, 0);
 348                 hostapd_config_free(hapd->iconf);
 349
 350                 hostapd_wpa_auth_conf(&newconf->bss[0], &wpa_auth_conf);
 351                 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 352
 353                 hapd->iconf = newconf;
 354                 hapd->conf = &newconf->bss[0];
 355                 hapds->iface[i]->conf = newconf;
 356
 357                 if (hostapd_setup_wpa_psk(hapd->conf)) {
 358                         wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
 359                                    "after reloading configuration");
 360                 }
 361         }
 362 }
 363
 364
 365 #ifdef HOSTAPD_DUMP_STATE
 366 static void hostapd_dump_state(struct hostapd_data *hapd)
 367 {
 368         FILE *f;
 369         time_t now;
 370         struct sta_info *sta;
 371         int i;
 372         char *buf;
 373
 374         if (!hapd->conf->dump_log_name) {
 375                 printf("Dump file not defined - ignoring dump request\n");
 376                 return;
 377         }
 378
 379         printf("Dumping hostapd state to '%s'\n", hapd->conf->dump_log_name);
 380         f = fopen(hapd->conf->dump_log_name, "w");
 381         if (f == NULL) {
 382                 printf("Could not open dump file '%s' for writing.\n",
 383                        hapd->conf->dump_log_name);
 384                 return;
 385         }
 386
 387         time(&now);
 388         fprintf(f, "hostapd state dump - %s", ctime(&now));
 389         fprintf(f, "num_sta=%d num_sta_non_erp=%d "
 390                 "num_sta_no_short_slot_time=%d\n"
 391                 "num_sta_no_short_preamble=%d\n",
 392                 hapd->num_sta, hapd->iface->num_sta_non_erp,
 393                 hapd->iface->num_sta_no_short_slot_time,
 394                 hapd->iface->num_sta_no_short_preamble);
 395
 396         for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
 397                 fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
 398
 399                 fprintf(f,
 400                         "  AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s\n"
 401                         "  capability=0x%x listen_interval=%d\n",
 402                         sta->aid,
 403                         sta->flags,
 404                         (sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
 405                         (sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
 406                         (sta->flags & WLAN_STA_PS ? "[PS]" : ""),
 407                         (sta->flags & WLAN_STA_TIM ? "[TIM]" : ""),
 408                         (sta->flags & WLAN_STA_PERM ? "[PERM]" : ""),
 409                         (sta->flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" :
 410                          ""),
 411                         (sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
 412                          ""),
 413                         (sta->flags & WLAN_STA_SHORT_PREAMBLE ?
 414                          "[SHORT_PREAMBLE]" : ""),
 415                         (sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
 416                         (sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
 417                         sta->capability,
 418                         sta->listen_interval);
 419
 420                 fprintf(f, "  supported_rates=");
 421                 for (i = 0; i < sta->supported_rates_len; i++)
 422                         fprintf(f, "%02x ", sta->supported_rates[i]);
 423                 fprintf(f, "\n");
 424
 425                 fprintf(f,
 426                         "  timeout_next=%s\n",
 427                         (sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" :
 428                          (sta->timeout_next == STA_DISASSOC ? "DISASSOC" :
 429                           "DEAUTH")));
 430
 431                 ieee802_1x_dump_state(f, "  ", sta);
 432         }
 433
 434         buf = os_malloc(4096);
 435         if (buf) {
 436                 int count = radius_client_get_mib(hapd->radius, buf, 4096);
 437                 if (count < 0)
 438                         count = 0;
 439                 else if (count > 4095)
 440                         count = 4095;
 441                 buf[count] = '\0';
 442                 fprintf(f, "%s", buf);
 443
 444                 count = radius_server_get_mib(hapd->radius_srv, buf, 4096);
 445                 if (count < 0)
 446                         count = 0;
 447                 else if (count > 4095)
 448                         count = 4095;
 449                 buf[count] = '\0';
 450                 fprintf(f, "%s", buf);
 451                 os_free(buf);
 452         }
 453         fclose(f);
 454 }
 455 #endif /* HOSTAPD_DUMP_STATE */
 456
 457
 458 static void handle_dump_state(int sig, void *eloop_ctx, void *signal_ctx)
 459 {
 460 #ifdef HOSTAPD_DUMP_STATE
 461         struct hapd_interfaces *hapds = (struct hapd_interfaces *) eloop_ctx;
 462         size_t i, j;
 463
 464         for (i = 0; i < hapds->count; i++) {
 465                 struct hostapd_iface *hapd_iface = hapds->iface[i];
 466                 for (j = 0; j < hapd_iface->num_bss; j++)
 467                         hostapd_dump_state(hapd_iface->bss[j]);
 468         }
 469 #endif /* HOSTAPD_DUMP_STATE */
 470 }
 471 #endif /* CONFIG_NATIVE_WINDOWS */
 472
 473 static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
 474                                               char *ifname)
 475 {
 476         int i;
 477
 478         for (i = 0; i < NUM_WEP_KEYS; i++) {
 479                 if (hostapd_set_encryption(ifname, hapd, "none", NULL, i, NULL,
 480                                            0, i == 0 ? 1 : 0)) {
 481                         printf("Failed to clear default encryption keys "
 482                                "(ifname=%s keyidx=%d)\n", ifname, i);
 483                 }
 484         }
 485 }
 486
 487
 488 static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
 489 {
 490         hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
 491         return 0;
 492 }
 493
 494
 495 static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
 496 {
 497         int errors = 0, idx;
 498         struct hostapd_ssid *ssid = &hapd->conf->ssid;
 499
 500         idx = ssid->wep.idx;
 501         if (ssid->wep.default_len &&
 502             hostapd_set_encryption(hapd->conf->iface,
 503                                    hapd, "WEP", NULL, idx,
 504                                    ssid->wep.key[idx],
 505                                    ssid->wep.len[idx],
 506                                    idx == ssid->wep.idx)) {
 507                 printf("Could not set WEP encryption.\n");
 508                 errors++;
 509         }
 510
 511         if (ssid->dyn_vlan_keys) {
 512                 size_t i;
 513                 for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
 514                         const char *ifname;
 515                         struct hostapd_wep_keys *key = ssid->dyn_vlan_keys[i];
 516                         if (key == NULL)
 517                                 continue;
 518                         ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan,
 519                                                             i);
 520                         if (ifname == NULL)
 521                                 continue;
 522
 523                         idx = key->idx;
 524                         if (hostapd_set_encryption(ifname, hapd, "WEP", NULL,
 525                                                    idx, key->key[idx],
 526                                                    key->len[idx],
 527                                                    idx == key->idx)) {
 528                                 printf("Could not set dynamic VLAN WEP "
 529                                        "encryption.\n");
 530                                 errors++;
 531                         }
 532                 }
 533         }
 534
 535         return errors;
 536 }
 537
 538 /**
 539  * hostapd_cleanup - Per-BSS cleanup (deinitialization)
 540  * @hapd: Pointer to BSS data
 541  *
 542  * This function is used to free all per-BSS data structures and resources.
 543  * This gets called in a loop for each BSS between calls to
 544  * hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
 545  * is deinitialized. Most of the modules that are initialized in
 546  * hostapd_setup_bss() are deinitialized here.
 547  */
 548 static void hostapd_cleanup(struct hostapd_data *hapd)
 549 {
 550         hostapd_ctrl_iface_deinit(hapd);
 551
 552         os_free(hapd->default_wep_key);
 553         hapd->default_wep_key = NULL;
 554         iapp_deinit(hapd->iapp);
 555         hapd->iapp = NULL;
 556         accounting_deinit(hapd);
 557         rsn_preauth_iface_deinit(hapd);
 558         if (hapd->wpa_auth) {
 559                 wpa_deinit(hapd->wpa_auth);
 560                 hapd->wpa_auth = NULL;
 561
 562                 if (hostapd_set_privacy(hapd, 0)) {
 563                         wpa_printf(MSG_DEBUG, "Could not disable "
 564                                    "PrivacyInvoked for interface %s",
 565                                    hapd->conf->iface);
 566                 }
 567
 568                 if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
 569                         wpa_printf(MSG_DEBUG, "Could not remove generic "
 570                                    "information element from interface %s",
 571                                    hapd->conf->iface);
 572                 }
 573         }
 574         ieee802_1x_deinit(hapd);
 575         vlan_deinit(hapd);
 576         hostapd_acl_deinit(hapd);
 577         radius_client_deinit(hapd->radius);
 578         hapd->radius = NULL;
 579         radius_server_deinit(hapd->radius_srv);
 580         hapd->radius_srv = NULL;
 581
 582 #ifdef CONFIG_IEEE80211R
 583         l2_packet_deinit(hapd->l2);
 584 #endif /* CONFIG_IEEE80211R */
 585
 586         hostapd_wireless_event_deinit(hapd);
 587
 588 #ifdef EAP_TLS_FUNCS
 589         if (hapd->ssl_ctx) {
 590                 tls_deinit(hapd->ssl_ctx);
 591                 hapd->ssl_ctx = NULL;
 592         }
 593 #endif /* EAP_TLS_FUNCS */
 594
 595 #ifdef EAP_SERVER
 596         if (hapd->eap_sim_db_priv) {
 597                 eap_sim_db_deinit(hapd->eap_sim_db_priv);
 598                 hapd->eap_sim_db_priv = NULL;
 599         }
 600 #endif /* EAP_SERVER */
 601
 602         if (hapd->interface_added &&
 603             hostapd_bss_remove(hapd, hapd->conf->iface)) {
 604                 printf("Failed to remove BSS interface %s\n",
 605                        hapd->conf->iface);
 606         }
 607 }
 608
 609
 610 /**
 611  * hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
 612  * @iface: Pointer to interface data
 613  *
 614  * This function is called before per-BSS data structures are deinitialized
 615  * with hostapd_cleanup().
 616  */
 617 static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
 618 {
 619 }
 620
 621
 622 /**
 623  * hostapd_cleanup_iface - Complete per-interface cleanup
 624  * @iface: Pointer to interface data
 625  *
 626  * This function is called after per-BSS data structures are deinitialized
 627  * with hostapd_cleanup().
 628  */
 629 static void hostapd_cleanup_iface(struct hostapd_iface *iface)
 630 {
 631         hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
 632         iface->hw_features = NULL;
 633         os_free(iface->current_rates);
 634         iface->current_rates = NULL;
 635         ap_list_deinit(iface);
 636         hostapd_config_free(iface->conf);
 637         iface->conf = NULL;
 638
 639         os_free(iface->config_fname);
 640         os_free(iface->bss);
 641         os_free(iface);
 642 }
 643
 644
 645 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
 646 {
 647         int i;
 648
 649         hostapd_broadcast_wep_set(hapd);
 650
 651         if (hapd->conf->ssid.wep.default_len)
 652                 return 0;
 653
 654         for (i = 0; i < 4; i++) {
 655                 if (hapd->conf->ssid.wep.key[i] &&
 656                     hostapd_set_encryption(iface, hapd, "WEP", NULL,
 657                                            i, hapd->conf->ssid.wep.key[i],
 658                                            hapd->conf->ssid.wep.len[i],
 659                                            i == hapd->conf->ssid.wep.idx)) {
 660                         printf("Could not set WEP encryption.\n");
 661                         return -1;
 662                 }
 663                 if (hapd->conf->ssid.wep.key[i] &&
 664                     i == hapd->conf->ssid.wep.idx)
 665                         hostapd_set_privacy(hapd, 1);
 666         }
 667
 668         return 0;
 669 }
 670
 671
 672 static int hostapd_flush_old_stations(struct hostapd_data *hapd)
 673 {
 674         int ret = 0;
 675
 676         wpa_printf(MSG_DEBUG, "Flushing old station entries");
 677         if (hostapd_flush(hapd)) {
 678                 printf("Could not connect to kernel driver.\n");
 679                 ret = -1;
 680         }
 681         wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
 682         hostapd_deauth_all_stas(hapd);
 683
 684         return ret;
 685 }
 686
 687
 688 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
 689                                     logger_level level, const char *txt)
 690 {
 691         struct hostapd_data *hapd = ctx;
 692         int hlevel;
 693
 694         switch (level) {
 695         case LOGGER_WARNING:
 696                 hlevel = HOSTAPD_LEVEL_WARNING;
 697                 break;
 698         case LOGGER_INFO:
 699                 hlevel = HOSTAPD_LEVEL_INFO;
 700                 break;
 701         case LOGGER_DEBUG:
 702         default:
 703                 hlevel = HOSTAPD_LEVEL_DEBUG;
 704                 break;
 705         }
 706
 707         hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
 708 }
 709
 710
 711 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 712                                         u16 reason)
 713 {
 714         struct hostapd_data *hapd = ctx;
 715         struct sta_info *sta;
 716
 717         wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
 718                    "STA " MACSTR " reason %d",
 719                    __func__, MAC2STR(addr), reason);
 720
 721         sta = ap_get_sta(hapd, addr);
 722         hostapd_sta_deauth(hapd, addr, reason);
 723         if (sta == NULL)
 724                 return;
 725         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_AUTHORIZED);
 726         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 727         eloop_register_timeout(0, 0, ap_handle_timer, hapd, sta);
 728         sta->timeout_next = STA_REMOVE;
 729 }
 730
 731
 732 static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 733 {
 734         struct hostapd_data *hapd = ctx;
 735         ieee80211_michael_mic_failure(hapd, addr, 0);
 736 }
 737
 738
 739 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
 740                                        wpa_eapol_variable var, int value)
 741 {
 742         struct hostapd_data *hapd = ctx;
 743         struct sta_info *sta = ap_get_sta(hapd, addr);
 744         if (sta == NULL)
 745                 return;
 746         switch (var) {
 747         case WPA_EAPOL_portEnabled:
 748                 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
 749                 break;
 750         case WPA_EAPOL_portValid:
 751                 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
 752                 break;
 753         case WPA_EAPOL_authorized:
 754                 ieee802_1x_set_sta_authorized(hapd, sta, value);
 755                 break;
 756         case WPA_EAPOL_portControl_Auto:
 757                 if (sta->eapol_sm)
 758                         sta->eapol_sm->portControl = Auto;
 759                 break;
 760         case WPA_EAPOL_keyRun:
 761                 if (sta->eapol_sm)
 762                         sta->eapol_sm->keyRun = value ? TRUE : FALSE;
 763                 break;
 764         case WPA_EAPOL_keyAvailable:
 765                 if (sta->eapol_sm)
 766                         sta->eapol_sm->eap_if->eapKeyAvailable =
 767                                 value ? TRUE : FALSE;
 768                 break;
 769         case WPA_EAPOL_keyDone:
 770                 if (sta->eapol_sm)
 771                         sta->eapol_sm->keyDone = value ? TRUE : FALSE;
 772                 break;
 773         case WPA_EAPOL_inc_EapolFramesTx:
 774                 if (sta->eapol_sm)
 775                         sta->eapol_sm->dot1xAuthEapolFramesTx++;
 776                 break;
 777         }
 778 }
 779
 780
 781 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 782                                       wpa_eapol_variable var)
 783 {
 784         struct hostapd_data *hapd = ctx;
 785         struct sta_info *sta = ap_get_sta(hapd, addr);
 786         if (sta == NULL || sta->eapol_sm == NULL)
 787                 return -1;
 788         switch (var) {
 789         case WPA_EAPOL_keyRun:
 790                 return sta->eapol_sm->keyRun;
 791         case WPA_EAPOL_keyAvailable:
 792                 return sta->eapol_sm->eap_if->eapKeyAvailable;
 793         default:
 794                 return -1;
 795         }
 796 }
 797
 798
 799 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
 800                                            const u8 *prev_psk)
 801 {
 802         struct hostapd_data *hapd = ctx;
 803         return hostapd_get_psk(hapd->conf, addr, prev_psk);
 804 }
 805
 806
 807 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
 808                                     size_t *len)
 809 {
 810         struct hostapd_data *hapd = ctx;
 811         const u8 *key;
 812         size_t keylen;
 813         struct sta_info *sta;
 814
 815         sta = ap_get_sta(hapd, addr);
 816         if (sta == NULL)
 817                 return -1;
 818
 819         key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
 820         if (key == NULL)
 821                 return -1;
 822
 823         if (keylen > *len)
 824                 keylen = *len;
 825         os_memcpy(msk, key, keylen);
 826         *len = keylen;
 827
 828         return 0;
 829 }
 830
 831
 832 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, const char *alg,
 833                                     const u8 *addr, int idx, u8 *key,
 834                                     size_t key_len)
 835 {
 836         struct hostapd_data *hapd = ctx;
 837         const char *ifname = hapd->conf->iface;
 838
 839         if (vlan_id > 0) {
 840                 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
 841                 if (ifname == NULL)
 842                         return -1;
 843         }
 844
 845         return hostapd_set_encryption(ifname, hapd, alg, addr, idx,
 846                                       key, key_len, 1);
 847 }
 848
 849
 850 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
 851                                        u8 *seq)
 852 {
 853         struct hostapd_data *hapd = ctx;
 854         return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
 855 }
 856
 857
 858 static int hostapd_wpa_auth_get_seqnum_igtk(void *ctx, const u8 *addr, int idx,
 859                                             u8 *seq)
 860 {
 861         struct hostapd_data *hapd = ctx;
 862         return hostapd_get_seqnum_igtk(hapd->conf->iface, hapd, addr, idx,
 863                                        seq);
 864 }
 865
 866
 867 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
 868                                        const u8 *data, size_t data_len,
 869                                        int encrypt)
 870 {
 871         struct hostapd_data *hapd = ctx;
 872         return hostapd_send_eapol(hapd, addr, data, data_len, encrypt);
 873 }
 874
 875
 876 static int hostapd_wpa_auth_for_each_sta(
 877         void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
 878         void *cb_ctx)
 879 {
 880         struct hostapd_data *hapd = ctx;
 881         struct sta_info *sta;
 882
 883         for (sta = hapd->sta_list; sta; sta = sta->next) {
 884                 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
 885                         return 1;
 886         }
 887         return 0;
 888 }
 889
 890
 891 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
 892                                        const u8 *data, size_t data_len)
 893 {
 894         struct hostapd_data *hapd = ctx;
 895
 896         if (hapd->driver && hapd->driver->send_ether)
 897                 return hapd->driver->send_ether(hapd->drv_priv, dst,
 898                                                 hapd->own_addr, proto,
 899                                                 data, data_len);
 900         if (hapd->l2 == NULL)
 901                 return -1;
 902         return l2_packet_send(hapd->l2, dst, proto, data, data_len);
 903 }
 904
 905
 906 #ifdef CONFIG_IEEE80211R
 907
 908 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
 909                                            const u8 *data, size_t data_len)
 910 {
 911         struct hostapd_data *hapd = ctx;
 912         int res;
 913         struct ieee80211_mgmt *m;
 914         size_t mlen;
 915         struct sta_info *sta;
 916
 917         sta = ap_get_sta(hapd, dst);
 918         if (sta == NULL || sta->wpa_sm == NULL)
 919                 return -1;
 920
 921         m = os_zalloc(sizeof(*m) + data_len);
 922         if (m == NULL)
 923                 return -1;
 924         mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
 925         m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 926                                         WLAN_FC_STYPE_ACTION);
 927         os_memcpy(m->da, dst, ETH_ALEN);
 928         os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
 929         os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
 930         os_memcpy(&m->u, data, data_len);
 931
 932         res = hostapd_send_mgmt_frame(hapd, (u8 *) m, mlen, 0);
 933         os_free(m);
 934         return res;
 935 }
 936
 937
 938 static struct wpa_state_machine *
 939 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
 940 {
 941         struct hostapd_data *hapd = ctx;
 942         struct sta_info *sta;
 943
 944         sta = ap_sta_add(hapd, sta_addr);
 945         if (sta == NULL)
 946                 return NULL;
 947         if (sta->wpa_sm)
 948                 return sta->wpa_sm;
 949
 950         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
 951         if (sta->wpa_sm == NULL) {
 952                 ap_free_sta(hapd, sta);
 953                 return NULL;
 954         }
 955         sta->auth_alg = WLAN_AUTH_FT;
 956
 957         return sta->wpa_sm;
 958 }
 959
 960
 961 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 962                                 size_t len)
 963 {
 964         struct hostapd_data *hapd = ctx;
 965         wpa_ft_rrb_rx(hapd->wpa_auth, src_addr, buf, len);
 966 }
 967
 968 #endif /* CONFIG_IEEE80211R */
 969
 970
 971 /**
 972  * hostapd_validate_bssid_configuration - Validate BSSID configuration
 973  * @iface: Pointer to interface data
 974  * Returns: 0 on success, -1 on failure
 975  *
 976  * This function is used to validate that the configured BSSIDs are valid.
 977  */
 978 static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
 979 {
 980         u8 mask[ETH_ALEN] = { 0 };
 981         struct hostapd_data *hapd = iface->bss[0];
 982         unsigned int i = iface->conf->num_bss, bits = 0, j;
 983         int res;
 984
 985         /* Generate BSSID mask that is large enough to cover the BSSIDs. */
 986
 987         /* Determine the bits necessary to cover the number of BSSIDs. */
 988         for (i--; i; i >>= 1)
 989                 bits++;
 990
 991         /* Determine the bits necessary to any configured BSSIDs,
 992            if they are higher than the number of BSSIDs. */
 993         for (j = 0; j < iface->conf->num_bss; j++) {
 994                 if (hostapd_mac_comp_empty(iface->conf->bss[j].bssid) == 0)
 995                         continue;
 996
 997                 for (i = 0; i < ETH_ALEN; i++) {
 998                         mask[i] |=
 999                                 iface->conf->bss[j].bssid[i] ^
1000                                 hapd->own_addr[i];
1001                 }
1002         }
1003
1004         for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
1005                 ;
1006         j = 0;
1007         if (i < ETH_ALEN) {
1008                 j = (5 - i) * 8;
1009
1010                 while (mask[i] != 0) {
1011                         mask[i] >>= 1;
1012                         j++;
1013                 }
1014         }
1015
1016         if (bits < j)
1017                 bits = j;
1018
1019         if (bits > 40)
1020                 return -1;
1021
1022         os_memset(mask, 0xff, ETH_ALEN);
1023         j = bits / 8;
1024         for (i = 5; i > 5 - j; i--)
1025                 mask[i] = 0;
1026         j = bits % 8;
1027         while (j--)
1028                 mask[i] <<= 1;
1029
1030         wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
1031                    (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
1032
1033         res = hostapd_valid_bss_mask(hapd, hapd->own_addr, mask);
1034         if (res == 0)
1035                 return 0;
1036
1037         if (res < 0) {
1038                 printf("Driver did not accept BSSID mask " MACSTR " for start "
1039                        "address " MACSTR ".\n",
1040                        MAC2STR(mask), MAC2STR(hapd->own_addr));
1041                 return -1;
1042         }
1043
1044         for (i = 0; i < ETH_ALEN; i++) {
1045                 if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
1046                         printf("Invalid BSSID mask " MACSTR " for start "
1047                                "address " MACSTR ".\n"
1048                                "Start address must be the first address in the"
1049                                " block (i.e., addr AND mask == addr).\n",
1050                                MAC2STR(mask), MAC2STR(hapd->own_addr));
1051                         return -1;
1052                 }
1053         }
1054
1055         return 0;
1056 }
1057
1058
1059 static int mac_in_conf(struct hostapd_config *conf, const void *a)
1060 {
1061         size_t i;
1062
1063         for (i = 0; i < conf->num_bss; i++) {
1064                 if (hostapd_mac_comp(conf->bss[i].bssid, a) == 0) {
1065                         return 1;
1066                 }
1067         }
1068
1069         return 0;
1070 }
1071
1072
1073 static int hostapd_setup_wpa(struct hostapd_data *hapd)
1074 {
1075         struct wpa_auth_config _conf;
1076         struct wpa_auth_callbacks cb;
1077         const u8 *wpa_ie;
1078         size_t wpa_ie_len;
1079
1080         hostapd_wpa_auth_conf(hapd->conf, &_conf);
1081         os_memset(&cb, 0, sizeof(cb));
1082         cb.ctx = hapd;
1083         cb.logger = hostapd_wpa_auth_logger;
1084         cb.disconnect = hostapd_wpa_auth_disconnect;
1085         cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
1086         cb.set_eapol = hostapd_wpa_auth_set_eapol;
1087         cb.get_eapol = hostapd_wpa_auth_get_eapol;
1088         cb.get_psk = hostapd_wpa_auth_get_psk;
1089         cb.get_msk = hostapd_wpa_auth_get_msk;
1090         cb.set_key = hostapd_wpa_auth_set_key;
1091         cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
1092         cb.get_seqnum_igtk = hostapd_wpa_auth_get_seqnum_igtk;
1093         cb.send_eapol = hostapd_wpa_auth_send_eapol;
1094         cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
1095         cb.send_ether = hostapd_wpa_auth_send_ether;
1096 #ifdef CONFIG_IEEE80211R
1097         cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
1098         cb.add_sta = hostapd_wpa_auth_add_sta;
1099 #endif /* CONFIG_IEEE80211R */
1100         hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
1101         if (hapd->wpa_auth == NULL) {
1102                 printf("WPA initialization failed.\n");
1103                 return -1;
1104         }
1105
1106         if (hostapd_set_privacy(hapd, 1)) {
1107                 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
1108                            "for interface %s", hapd->conf->iface);
1109                 return -1;
1110         }
1111
1112         wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
1113         if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
1114                 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
1115                            "the kernel driver.");
1116                 return -1;
1117         }
1118
1119         if (rsn_preauth_iface_init(hapd)) {
1120                 printf("Initialization of RSN pre-authentication "
1121                        "failed.\n");
1122                 return -1;
1123         }
1124
1125         return 0;
1126
1127 }
1128
1129
1130 static int hostapd_setup_radius_srv(struct hostapd_data *hapd,
1131                                     struct hostapd_bss_config *conf)
1132 {
1133         struct radius_server_conf srv;
1134         os_memset(&srv, 0, sizeof(srv));
1135         srv.client_file = conf->radius_server_clients;
1136         srv.auth_port = conf->radius_server_auth_port;
1137         srv.conf_ctx = conf;
1138         srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
1139         srv.ssl_ctx = hapd->ssl_ctx;
1140         srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
1141         srv.eap_fast_a_id = conf->eap_fast_a_id;
1142         srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
1143         srv.tnc = conf->tnc;
1144         srv.ipv6 = conf->radius_server_ipv6;
1145         srv.get_eap_user = hostapd_radius_get_eap_user;
1146
1147         hapd->radius_srv = radius_server_init(&srv);
1148         if (hapd->radius_srv == NULL) {
1149                 printf("RADIUS server initialization failed.\n");
1150                 return -1;
1151         }
1152
1153         return 0;
1154 }
1155
1156
1157 /**
1158  * hostapd_setup_bss - Per-BSS setup (initialization)
1159  * @hapd: Pointer to BSS data
1160  * @first: Whether this BSS is the first BSS of an interface
1161  *
1162  * This function is used to initialize all per-BSS data structures and
1163  * resources. This gets called in a loop for each BSS when an interface is
1164  * initialized. Most of the modules that are initialized here will be
1165  * deinitialized in hostapd_cleanup().
1166  */
1167 static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
1168 {
1169         struct hostapd_bss_config *conf = hapd->conf;
1170         u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
1171         int ssid_len, set_ssid;
1172
1173         if (!first) {
1174                 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
1175                         /* Allocate the next available BSSID. */
1176                         do {
1177                                 inc_byte_array(hapd->own_addr, ETH_ALEN);
1178                         } while (mac_in_conf(hapd->iconf, hapd->own_addr));
1179                 } else {
1180                         /* Allocate the configured BSSID. */
1181                         os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
1182
1183                         if (hostapd_mac_comp(hapd->own_addr,
1184                                              hapd->iface->bss[0]->own_addr) ==
1185                             0) {
1186                                 printf("BSS '%s' may not have BSSID "
1187                                        "set to the MAC address of the radio\n",
1188                                        hapd->conf->iface);
1189                                 return -1;
1190                         }
1191                 }
1192
1193                 hapd->interface_added = 1;
1194                 if (hostapd_bss_add(hapd->iface->bss[0], hapd->conf->iface,
1195                                     hapd->own_addr)) {
1196                         printf("Failed to add BSS (BSSID=" MACSTR ")\n",
1197                                MAC2STR(hapd->own_addr));
1198                         return -1;
1199                 }
1200         }
1201
1202         /*
1203          * Fetch the SSID from the system and use it or,
1204          * if one was specified in the config file, verify they
1205          * match.
1206          */
1207         ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
1208         if (ssid_len < 0) {
1209                 printf("Could not read SSID from system\n");
1210                 return -1;
1211         }
1212         if (conf->ssid.ssid_set) {
1213                 /*
1214                  * If SSID is specified in the config file and it differs
1215                  * from what is being used then force installation of the
1216                  * new SSID.
1217                  */
1218                 set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
1219                             os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
1220         } else {
1221                 /*
1222                  * No SSID in the config file; just use the one we got
1223                  * from the system.
1224                  */
1225                 set_ssid = 0;
1226                 conf->ssid.ssid_len = ssid_len;
1227                 os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
1228                 conf->ssid.ssid[conf->ssid.ssid_len] = '\0';
1229         }
1230
1231         printf("Using interface %s with hwaddr " MACSTR " and ssid '%s'\n",
1232                hapd->conf->iface, MAC2STR(hapd->own_addr),
1233                hapd->conf->ssid.ssid);
1234
1235         if (hostapd_setup_wpa_psk(conf)) {
1236                 printf("WPA-PSK setup failed.\n");
1237                 return -1;
1238         }
1239
1240         /* Set flag for whether SSID is broadcast in beacons */
1241         if (hostapd_set_broadcast_ssid(hapd,
1242                                        !!hapd->conf->ignore_broadcast_ssid)) {
1243                 printf("Could not set broadcast SSID flag for kernel "
1244                        "driver\n");
1245                 return -1;
1246         }
1247
1248         if (hostapd_set_dtim_period(hapd, hapd->conf->dtim_period)) {
1249                 printf("Could not set DTIM period for kernel driver\n");
1250                 return -1;
1251         }
1252
1253         /* Set SSID for the kernel driver (to be used in beacon and probe
1254          * response frames) */
1255         if (set_ssid && hostapd_set_ssid(hapd, (u8 *) conf->ssid.ssid,
1256                                          conf->ssid.ssid_len)) {
1257                 printf("Could not set SSID for kernel driver\n");
1258                 return -1;
1259         }
1260
1261         if (wpa_debug_level == MSG_MSGDUMP)
1262                 conf->radius->msg_dumps = 1;
1263         hapd->radius = radius_client_init(hapd, conf->radius);
1264         if (hapd->radius == NULL) {
1265                 printf("RADIUS client initialization failed.\n");
1266                 return -1;
1267         }
1268
1269         if (hostapd_acl_init(hapd)) {
1270                 printf("ACL initialization failed.\n");
1271                 return -1;
1272         }
1273
1274         if (ieee802_1x_init(hapd)) {
1275                 printf("IEEE 802.1X initialization failed.\n");
1276                 return -1;
1277         }
1278
1279         if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
1280                 return -1;
1281
1282         if (accounting_init(hapd)) {
1283                 printf("Accounting initialization failed.\n");
1284                 return -1;
1285         }
1286
1287         if (hapd->conf->ieee802_11f &&
1288             (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
1289                 printf("IEEE 802.11F (IAPP) initialization failed.\n");
1290                 return -1;
1291         }
1292
1293         if (hostapd_ctrl_iface_init(hapd)) {
1294                 printf("Failed to setup control interface\n");
1295                 return -1;
1296         }
1297
1298         if (vlan_init(hapd)) {
1299                 printf("VLAN initialization failed.\n");
1300                 return -1;
1301         }
1302
1303 #ifdef CONFIG_IEEE80211R
1304         hapd->l2 = l2_packet_init(hapd->conf->iface, NULL, ETH_P_RRB,
1305                                   hostapd_rrb_receive, hapd, 0);
1306         if (hapd->l2 == NULL &&
1307             (hapd->driver == NULL || hapd->driver->send_ether == NULL)) {
1308                 printf("Failed to open l2_packet interface\n");
1309                 return -1;
1310         }
1311 #endif /* CONFIG_IEEE80211R */
1312
1313         ieee802_11_set_beacon(hapd);
1314
1315         if (conf->radius_server_clients &&
1316             hostapd_setup_radius_srv(hapd, conf))
1317                 return -1;
1318
1319         return 0;
1320 }
1321
1322
1323 /**
1324  * setup_interface2 - Setup (initialize) an interface (part 2)
1325  * @iface: Pointer to interface data.
1326  * Returns: 0 on success; -1 on failure.
1327  *
1328  * Flushes old stations, sets the channel, DFS parameters, encryption,
1329  * beacons, and WDS links based on the configuration.
1330  */
1331 static int setup_interface2(struct hostapd_iface *iface)
1332 {
1333         struct hostapd_data *hapd = iface->bss[0];
1334         int freq;
1335         size_t j;
1336         int ret = 0;
1337         u8 *prev_addr;
1338
1339         hostapd_flush_old_stations(hapd);
1340         hostapd_set_privacy(hapd, 0);
1341
1342         if (hapd->iconf->channel) {
1343                 freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
1344                 printf("Mode: %s  Channel: %d  Frequency: %d MHz\n",
1345                        hostapd_hw_mode_txt(hapd->iconf->hw_mode),
1346                        hapd->iconf->channel, freq);
1347
1348                 if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq)) {
1349                         printf("Could not set channel for kernel driver\n");
1350                         return -1;
1351                 }
1352         }
1353
1354         hostapd_broadcast_wep_clear(hapd);
1355         if (hostapd_setup_encryption(hapd->conf->iface, hapd))
1356                 return -1;
1357
1358         hostapd_set_beacon_int(hapd, hapd->iconf->beacon_int);
1359         ieee802_11_set_beacon(hapd);
1360
1361         if (hapd->iconf->rts_threshold > -1 &&
1362             hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
1363                 printf("Could not set RTS threshold for kernel driver\n");
1364                 return -1;
1365         }
1366
1367         if (hapd->iconf->fragm_threshold > -1 &&
1368             hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
1369                 printf("Could not set fragmentation threshold for kernel "
1370                        "driver\n");
1371                 return -1;
1372         }
1373
1374         prev_addr = hapd->own_addr;
1375
1376         for (j = 0; j < iface->num_bss; j++) {
1377                 hapd = iface->bss[j];
1378                 if (j)
1379                         os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
1380                 if (hostapd_setup_bss(hapd, j == 0))
1381                         return -1;
1382                 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
1383                         prev_addr = hapd->own_addr;
1384         }
1385
1386         ap_list_init(iface);
1387
1388         if (hostapd_driver_commit(hapd) < 0) {
1389                 wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
1390                            "configuration", __func__);
1391                 return -1;
1392         }
1393
1394         return ret;
1395 }
1396
1397
1398 static void setup_interface_start(void *eloop_data, void *user_ctx);
1399 static void setup_interface2_handler(void *eloop_data, void *user_ctx);
1400
1401 /**
1402  * setup_interface_finalize - Finish setup interface & call the callback
1403  * @iface: Pointer to interface data.
1404  * @status: Status of the setup interface (0 on success; -1 on failure).
1405  * Returns: 0 on success; -1 on failure (e.g., was not in progress).
1406  */
1407 static int setup_interface_finalize(struct hostapd_iface *iface, int status)
1408 {
1409         hostapd_iface_cb cb;
1410
1411         if (!iface->setup_cb)
1412                 return -1;
1413
1414         eloop_cancel_timeout(setup_interface_start, iface, NULL);
1415         eloop_cancel_timeout(setup_interface2_handler, iface, NULL);
1416         hostapd_select_hw_mode_stop(iface);
1417
1418         cb = iface->setup_cb;
1419
1420         iface->setup_cb = NULL;
1421
1422         cb(iface, status);
1423
1424         return 0;
1425 }
1426
1427
1428 /**
1429  * setup_interface2_wrapper - Wrapper for setup_interface2()
1430  * @iface: Pointer to interface data.
1431  * @status: Status of the hw mode select.
1432  *
1433  * Wrapper for setup_interface2() to calls finalize function upon completion.
1434  */
1435 static void setup_interface2_wrapper(struct hostapd_iface *iface, int status)
1436 {
1437         int ret = status;
1438         if (ret)
1439                 printf("Could not select hw_mode and channel. (%d)\n", ret);
1440         else
1441                 ret = setup_interface2(iface);
1442
1443         setup_interface_finalize(iface, ret);
1444 }
1445
1446
1447 /**
1448  * setup_interface2_handler - Used for immediate call of setup_interface2
1449  * @eloop_data: Stores the struct hostapd_iface * for the interface.
1450  * @user_ctx: Unused.
1451  */
1452 static void setup_interface2_handler(void *eloop_data, void *user_ctx)
1453 {
1454         struct hostapd_iface *iface = eloop_data;
1455
1456         setup_interface2_wrapper(iface, 0);
1457 }
1458
1459
1460 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
1461                                        size_t identity_len, int phase2,
1462                                        struct eap_user *user)
1463 {
1464         const struct hostapd_eap_user *eap_user;
1465         int i, count;
1466
1467         eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
1468         if (eap_user == NULL)
1469                 return -1;
1470
1471         if (user == NULL)
1472                 return 0;
1473
1474         os_memset(user, 0, sizeof(*user));
1475         count = EAP_USER_MAX_METHODS;
1476         if (count > EAP_MAX_METHODS)
1477                 count = EAP_MAX_METHODS;
1478         for (i = 0; i < count; i++) {
1479                 user->methods[i].vendor = eap_user->methods[i].vendor;
1480                 user->methods[i].method = eap_user->methods[i].method;
1481         }
1482
1483         if (eap_user->password) {
1484                 user->password = os_malloc(eap_user->password_len);
1485                 if (user->password == NULL)
1486                         return -1;
1487                 os_memcpy(user->password, eap_user->password,
1488                           eap_user->password_len);
1489                 user->password_len = eap_user->password_len;
1490                 user->password_hash = eap_user->password_hash;
1491         }
1492         user->force_version = eap_user->force_version;
1493         user->ttls_auth = eap_user->ttls_auth;
1494
1495         return 0;
1496 }
1497
1498
1499 /**
1500  * setup_interface1 - Setup (initialize) an interface (part 1)
1501  * @iface: Pointer to interface data
1502  * Returns: 0 on success, -1 on failure
1503  *
1504  * Initializes the driver interface, validates the configuration,
1505  * and sets driver parameters based on the configuration.
1506  * Schedules setup_interface2() to be called immediately or after
1507  * hardware mode setup takes place.
1508  */
1509 static int setup_interface1(struct hostapd_iface *iface)
1510 {
1511         struct hostapd_data *hapd = iface->bss[0];
1512         struct hostapd_bss_config *conf = hapd->conf;
1513         size_t i;
1514         char country[4];
1515         u8 *b = conf->bssid;
1516
1517         /*
1518          * Initialize the driver interface and make sure that all BSSes get
1519          * configured with a pointer to this driver interface.
1520          */
1521         if (b[0] | b[1] | b[2] | b[3] | b[4] | b[5]) {
1522                 hapd->drv_priv = hostapd_driver_init_bssid(hapd, b);
1523         } else {
1524                 hapd->drv_priv = hostapd_driver_init(hapd);
1525         }
1526
1527         if (hapd->drv_priv == NULL) {
1528                 printf("%s driver initialization failed.\n",
1529                         hapd->driver ? hapd->driver->name : "Unknown");
1530                 hapd->driver = NULL;
1531                 return -1;
1532         }
1533         for (i = 0; i < iface->num_bss; i++) {
1534                 iface->bss[i]->driver = hapd->driver;
1535                 iface->bss[i]->drv_priv = hapd->drv_priv;
1536         }
1537
1538         if (hostapd_validate_bssid_configuration(iface))
1539                 return -1;
1540
1541         os_memcpy(country, hapd->iconf->country, 3);
1542         country[3] = '\0';
1543         if (hostapd_set_country(hapd, country) < 0) {
1544                 printf("Failed to set country code\n");
1545                 return -1;
1546         }
1547
1548         if (hapd->iconf->ieee80211d || hapd->iconf->ieee80211h) {
1549                 if (hostapd_set_ieee80211d(hapd, 1) < 0) {
1550                         printf("Failed to set ieee80211d (%d)\n",
1551                                hapd->iconf->ieee80211d);
1552                         return -1;
1553                 }
1554         }
1555
1556         if (hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
1557             hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets)) {
1558                 printf("Failed to set bridge_packets for kernel driver\n");
1559                 return -1;
1560         }
1561
1562         /* TODO: merge with hostapd_driver_init() ? */
1563         if (hostapd_wireless_event_init(hapd) < 0)
1564                 return -1;
1565
1566         if (hostapd_get_hw_features(iface)) {
1567                 /* Not all drivers support this yet, so continue without hw
1568                  * feature data. */
1569         } else {
1570                 return hostapd_select_hw_mode_start(iface,
1571                                                     setup_interface2_wrapper);
1572         }
1573
1574         eloop_register_timeout(0, 0, setup_interface2_handler, iface, NULL);
1575         return 0;
1576 }
1577
1578
1579 /**
1580  * setup_interface_start - Handler to start setup interface
1581  * @eloop_data: Stores the struct hostapd_iface * for the interface.
1582  * @user_ctx: Unused.
1583  *
1584  * An eloop handler is used so that all errors can be processed by the
1585  * callback without introducing stack recursion.
1586  */
1587 static void setup_interface_start(void *eloop_data, void *user_ctx)
1588 {
1589         struct hostapd_iface *iface = eloop_data;
1590
1591         int ret;
1592
1593         ret = setup_interface1(iface);
1594         if (ret)
1595                 setup_interface_finalize(iface, ret);
1596 }
1597
1598
1599 /**
1600  * hostapd_setup_interface_start - Start the setup of an interface
1601  * @iface: Pointer to interface data.
1602  * @cb: The function to callback when done.
1603  * Returns:  0 if it starts successfully; cb will be called when done.
1604  *          -1 on failure; cb will not be called.
1605  *
1606  * Initializes the driver interface, validates the configuration,
1607  * and sets driver parameters based on the configuration.
1608  * Flushes old stations, sets the channel, DFS parameters, encryption,
1609  * beacons, and WDS links based on the configuration.
1610  */
1611 int hostapd_setup_interface_start(struct hostapd_iface *iface,
1612                                   hostapd_iface_cb cb)
1613 {
1614         if (iface->setup_cb) {
1615                 wpa_printf(MSG_DEBUG,
1616                            "%s: Interface setup already in progress.\n",
1617                            iface->bss[0]->conf->iface);
1618                 return -1;
1619         }
1620
1621         iface->setup_cb = cb;
1622
1623         eloop_register_timeout(0, 0, setup_interface_start, iface, NULL);
1624
1625         return 0;
1626 }
1627
1628
1629 /**
1630  * hostapd_setup_interace_stop - Stops the setup of an interface
1631  * @iface: Pointer to interface data
1632  * Returns:  0 if successfully stopped;
1633  *          -1 on failure (i.e., was not in progress)
1634  */
1635 int hostapd_setup_interface_stop(struct hostapd_iface *iface)
1636 {
1637         return setup_interface_finalize(iface, -1);
1638 }
1639
1640
1641 static void show_version(void)
1642 {
1643         fprintf(stderr,
1644                 "hostapd v" VERSION_STR "\n"
1645                 "User space daemon for IEEE 802.11 AP management,\n"
1646                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
1647                 "Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi> "
1648                 "and contributors\n");
1649 }
1650
1651
1652 static void usage(void)
1653 {
1654         show_version();
1655         fprintf(stderr,
1656                 "\n"
1657                 "usage: hostapd [-hdBKtv] [-P <PID file>] "
1658                 "<configuration file(s)>\n"
1659                 "\n"
1660                 "options:\n"
1661                 "   -h   show this usage\n"
1662                 "   -d   show more debug messages (-dd for even more)\n"
1663                 "   -B   run daemon in the background\n"
1664                 "   -P   PID file\n"
1665                 "   -K   include key data in debug messages\n"
1666                 "   -t   include timestamps in some debug messages\n"
1667                 "   -v   show hostapd version\n");
1668
1669         exit(1);
1670 }
1671
1672
1673 /**
1674  * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
1675  * @hapd_iface: Pointer to interface data
1676  * @conf: Pointer to per-interface configuration
1677  * @bss: Pointer to per-BSS configuration for this BSS
1678  * Returns: Pointer to allocated BSS data
1679  *
1680  * This function is used to allocate per-BSS data structure. This data will be
1681  * freed after hostapd_cleanup() is called for it during interface
1682  * deinitialization.
1683  */
1684 static struct hostapd_data *
1685 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
1686                        struct hostapd_config *conf,
1687                        struct hostapd_bss_config *bss)
1688 {
1689         struct hostapd_data *hapd;
1690
1691         hapd = os_zalloc(sizeof(*hapd));
1692         if (hapd == NULL)
1693                 return NULL;
1694
1695         hapd->iconf = conf;
1696         hapd->conf = bss;
1697         hapd->iface = hapd_iface;
1698
1699         if (hapd->conf->individual_wep_key_len > 0) {
1700                 /* use key0 in individual key and key1 in broadcast key */
1701                 hapd->default_wep_key_idx = 1;
1702         }
1703
1704 #ifdef EAP_TLS_FUNCS
1705         if (hapd->conf->eap_server &&
1706             (hapd->conf->ca_cert || hapd->conf->server_cert ||
1707              hapd->conf->dh_file)) {
1708                 struct tls_connection_params params;
1709
1710                 hapd->ssl_ctx = tls_init(NULL);
1711                 if (hapd->ssl_ctx == NULL) {
1712                         printf("Failed to initialize TLS\n");
1713                         goto fail;
1714                 }
1715
1716                 os_memset(&params, 0, sizeof(params));
1717                 params.ca_cert = hapd->conf->ca_cert;
1718                 params.client_cert = hapd->conf->server_cert;
1719                 params.private_key = hapd->conf->private_key;
1720                 params.private_key_passwd = hapd->conf->private_key_passwd;
1721                 params.dh_file = hapd->conf->dh_file;
1722
1723                 if (tls_global_set_params(hapd->ssl_ctx, &params)) {
1724                         printf("Failed to set TLS parameters\n");
1725                         goto fail;
1726                 }
1727
1728                 if (tls_global_set_verify(hapd->ssl_ctx,
1729                                           hapd->conf->check_crl)) {
1730                         printf("Failed to enable check_crl\n");
1731                         goto fail;
1732                 }
1733         }
1734 #endif /* EAP_TLS_FUNCS */
1735
1736 #ifdef EAP_SERVER
1737         if (hapd->conf->eap_sim_db) {
1738                 hapd->eap_sim_db_priv =
1739                         eap_sim_db_init(hapd->conf->eap_sim_db,
1740                                         hostapd_sim_db_cb, hapd);
1741                 if (hapd->eap_sim_db_priv == NULL) {
1742                         printf("Failed to initialize EAP-SIM database "
1743                                "interface\n");
1744                         goto fail;
1745                 }
1746         }
1747 #endif /* EAP_SERVER */
1748
1749         if (hapd->conf->assoc_ap)
1750                 hapd->assoc_ap_state = WAIT_BEACON;
1751
1752         hapd->driver = hapd->iconf->driver;
1753
1754         return hapd;
1755
1756 #if defined(EAP_TLS_FUNCS) || defined(EAP_SERVER)
1757 fail:
1758 #endif
1759         /* TODO: cleanup allocated resources(?) */
1760         os_free(hapd);
1761         return NULL;
1762 }
1763
1764
1765 /**
1766  * hostapd_init - Allocate and initialize per-interface data
1767  * @config_file: Path to the configuration file
1768  * Returns: Pointer to the allocated interface data or %NULL on failure
1769  *
1770  * This function is used to allocate main data structures for per-interface
1771  * data. The allocated data buffer will be freed by calling
1772  * hostapd_cleanup_iface().
1773  */
1774 static struct hostapd_iface * hostapd_init(const char *config_file)
1775 {
1776         struct hostapd_iface *hapd_iface = NULL;
1777         struct hostapd_config *conf = NULL;
1778         struct hostapd_data *hapd;
1779         size_t i;
1780
1781         hapd_iface = os_zalloc(sizeof(*hapd_iface));
1782         if (hapd_iface == NULL)
1783                 goto fail;
1784
1785         hapd_iface->config_fname = os_strdup(config_file);
1786         if (hapd_iface->config_fname == NULL)
1787                 goto fail;
1788
1789         conf = hostapd_config_read(hapd_iface->config_fname);
1790         if (conf == NULL)
1791                 goto fail;
1792         hapd_iface->conf = conf;
1793
1794         hapd_iface->num_bss = conf->num_bss;
1795         hapd_iface->bss = os_zalloc(conf->num_bss *
1796                                     sizeof(struct hostapd_data *));
1797         if (hapd_iface->bss == NULL)
1798                 goto fail;
1799
1800         for (i = 0; i < conf->num_bss; i++) {
1801                 hapd = hapd_iface->bss[i] =
1802                         hostapd_alloc_bss_data(hapd_iface, conf,
1803                                                &conf->bss[i]);
1804                 if (hapd == NULL)
1805                         goto fail;
1806         }
1807
1808         return hapd_iface;
1809
1810 fail:
1811         if (conf)
1812                 hostapd_config_free(conf);
1813         if (hapd_iface) {
1814                 for (i = 0; hapd_iface->bss && i < hapd_iface->num_bss; i++) {
1815                         hapd = hapd_iface->bss[i];
1816                         if (hapd && hapd->ssl_ctx)
1817                                 tls_deinit(hapd->ssl_ctx);
1818                 }
1819
1820                 os_free(hapd_iface->config_fname);
1821                 os_free(hapd_iface->bss);
1822                 os_free(hapd_iface);
1823         }
1824         return NULL;
1825 }
1826
1827
1828 /**
1829  * register_drivers - Register driver interfaces
1830  *
1831  * This function is generated by Makefile (into driver_conf.c) to call all
1832  * configured driver interfaces to register them to core hostapd.
1833  */
1834 void register_drivers(void);
1835
1836
1837 /**
1838  * setup_interface_done - Callback when an interface is done being setup.
1839  * @iface: Pointer to interface data.
1840  * @status: Status of the interface setup (0 on success; -1 on failure).
1841  */
1842 static void setup_interface_done(struct hostapd_iface *iface, int status)
1843 {
1844         if (status) {
1845                 wpa_printf(MSG_DEBUG, "%s: Unable to setup interface.",
1846                            iface->bss[0]->conf->iface);
1847                 eloop_terminate();
1848         } else
1849                 wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
1850                            iface->bss[0]->conf->iface);
1851 }
1852
1853
1854 int main(int argc, char *argv[])
1855 {
1856         struct hapd_interfaces interfaces;
1857         int ret = 1, k;
1858         size_t i, j;
1859         int c, debug = 0, daemonize = 0, tnc = 0;
1860         const char *pid_file = NULL;
1861
1862         hostapd_logger_register_cb(hostapd_logger_cb);
1863
1864         for (;;) {
1865                 c = getopt(argc, argv, "BdhKP:tv");
1866                 if (c < 0)
1867                         break;
1868                 switch (c) {
1869                 case 'h':
1870                         usage();
1871                         break;
1872                 case 'd':
1873                         debug++;
1874                         if (wpa_debug_level > 0)
1875                                 wpa_debug_level--;
1876                         break;
1877                 case 'B':
1878                         daemonize++;
1879                         break;
1880                 case 'K':
1881                         wpa_debug_show_keys++;
1882                         break;
1883                 case 'P':
1884                         pid_file = optarg;
1885                         break;
1886                 case 't':
1887                         wpa_debug_timestamp++;
1888                         break;
1889                 case 'v':
1890                         show_version();
1891                         exit(1);
1892                         break;
1893
1894                 default:
1895                         usage();
1896                         break;
1897                 }
1898         }
1899
1900         if (optind == argc)
1901                 usage();
1902
1903         if (eap_server_register_methods()) {
1904                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1905                 return -1;
1906         }
1907
1908         interfaces.count = argc - optind;
1909
1910         interfaces.iface = os_malloc(interfaces.count *
1911                                      sizeof(struct hostapd_iface *));
1912         if (interfaces.iface == NULL) {
1913                 wpa_printf(MSG_ERROR, "malloc failed\n");
1914                 return -1;
1915         }
1916
1917         if (eloop_init(&interfaces)) {
1918                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1919                 return -1;
1920         }
1921
1922 #ifndef CONFIG_NATIVE_WINDOWS
1923         eloop_register_signal(SIGHUP, handle_reload, NULL);
1924         eloop_register_signal(SIGUSR1, handle_dump_state, NULL);
1925 #endif /* CONFIG_NATIVE_WINDOWS */
1926         eloop_register_signal_terminate(handle_term, NULL);
1927
1928         /* Initialize interfaces */
1929         for (i = 0; i < interfaces.count; i++) {
1930                 printf("Configuration file: %s\n", argv[optind + i]);
1931                 interfaces.iface[i] = hostapd_init(argv[optind + i]);
1932                 if (!interfaces.iface[i])
1933                         goto out;
1934                 for (k = 0; k < debug; k++) {
1935                         if (interfaces.iface[i]->bss[0]->conf->
1936                             logger_stdout_level > 0)
1937                                 interfaces.iface[i]->bss[0]->conf->
1938                                         logger_stdout_level--;
1939                 }
1940
1941                 ret = hostapd_setup_interface_start(interfaces.iface[i],
1942                                                     setup_interface_done);
1943                 if (ret)
1944                         goto out;
1945
1946                 for (k = 0; k < (int) interfaces.iface[i]->num_bss; k++) {
1947                         if (interfaces.iface[i]->bss[0]->conf->tnc)
1948                                 tnc++;
1949                 }
1950         }
1951
1952 #ifdef EAP_TNC
1953         if (tnc && tncs_global_init() < 0) {
1954                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
1955                 goto out;
1956         }
1957 #endif /* EAP_TNC */
1958
1959         if (daemonize && os_daemonize(pid_file)) {
1960                 perror("daemon");
1961                 goto out;
1962         }
1963
1964 #ifndef CONFIG_NATIVE_WINDOWS
1965         openlog("hostapd", 0, LOG_DAEMON);
1966 #endif /* CONFIG_NATIVE_WINDOWS */
1967
1968         eloop_run();
1969
1970         /* Disconnect associated stations from all interfaces and BSSes */
1971         for (i = 0; i < interfaces.count; i++) {
1972                 for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
1973                         struct hostapd_data *hapd =
1974                                 interfaces.iface[i]->bss[j];
1975                         hostapd_free_stas(hapd);
1976                         hostapd_flush_old_stations(hapd);
1977                 }
1978         }
1979
1980         ret = 0;
1981
1982  out:
1983         /* Deinitialize all interfaces */
1984         for (i = 0; i < interfaces.count; i++) {
1985                 if (!interfaces.iface[i])
1986                         continue;
1987                 hostapd_setup_interface_stop(interfaces.iface[i]);
1988                 hostapd_cleanup_iface_pre(interfaces.iface[i]);
1989                 for (j = 0; j < interfaces.iface[i]->num_bss; j++) {
1990                         struct hostapd_data *hapd =
1991                                 interfaces.iface[i]->bss[j];
1992                         hostapd_cleanup(hapd);
1993                         if (j == interfaces.iface[i]->num_bss - 1 &&
1994                             hapd->driver)
1995                                 hostapd_driver_deinit(hapd);
1996                 }
1997                 for (j = 0; j < interfaces.iface[i]->num_bss; j++)
1998                         os_free(interfaces.iface[i]->bss[j]);
1999                 hostapd_cleanup_iface(interfaces.iface[i]);
2000         }
2001         os_free(interfaces.iface);
2002
2003 #ifdef EAP_TNC
2004         tncs_global_deinit();
2005 #endif /* EAP_TNC */
2006
2007         eloop_destroy();
2008
2009 #ifndef CONFIG_NATIVE_WINDOWS
2010         closelog();
2011 #endif /* CONFIG_NATIVE_WINDOWS */
2012
2013         eap_server_unregister_methods();
2014
2015         os_daemonize_terminate(pid_file);
2016
2017         return ret;
2018 }