hostapd/main.c

   1 /*
   2  * hostapd / main()
   3  * Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10 #ifndef CONFIG_NATIVE_WINDOWS
  11 #include <syslog.h>
  12 #include <grp.h>
  13 #endif /* CONFIG_NATIVE_WINDOWS */
  14
  15 #include "utils/common.h"
  16 #include "utils/eloop.h"
  17 #include "crypto/random.h"
  18 #include "crypto/tls.h"
  19 #include "common/version.h"
  20 #include "drivers/driver.h"
  21 #include "eap_server/eap.h"
  22 #include "eap_server/tncs.h"
  23 #include "ap/hostapd.h"
  24 #include "ap/ap_config.h"
  25 #include "ap/ap_drv_ops.h"
  26 #include "config_file.h"
  27 #include "eap_register.h"
  28 #include "dump_state.h"
  29 #include "ctrl_iface.h"
  30
  31
  32 extern int wpa_debug_level;
  33 extern int wpa_debug_show_keys;
  34 extern int wpa_debug_timestamp;
  35
  36
  37 struct hapd_global {
  38         void **drv_priv;
  39         size_t drv_count;
  40 };
  41
  42 static struct hapd_global global;
  43
  44
  45 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  46 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  47                               int level, const char *txt, size_t len)
  48 {
  49         struct hostapd_data *hapd = ctx;
  50         char *format, *module_str;
  51         int maxlen;
  52         int conf_syslog_level, conf_stdout_level;
  53         unsigned int conf_syslog, conf_stdout;
  54
  55         maxlen = len + 100;
  56         format = os_malloc(maxlen);
  57         if (!format)
  58                 return;
  59
  60         if (hapd && hapd->conf) {
  61                 conf_syslog_level = hapd->conf->logger_syslog_level;
  62                 conf_stdout_level = hapd->conf->logger_stdout_level;
  63                 conf_syslog = hapd->conf->logger_syslog;
  64                 conf_stdout = hapd->conf->logger_stdout;
  65         } else {
  66                 conf_syslog_level = conf_stdout_level = 0;
  67                 conf_syslog = conf_stdout = (unsigned int) -1;
  68         }
  69
  70         switch (module) {
  71         case HOSTAPD_MODULE_IEEE80211:
  72                 module_str = "IEEE 802.11";
  73                 break;
  74         case HOSTAPD_MODULE_IEEE8021X:
  75                 module_str = "IEEE 802.1X";
  76                 break;
  77         case HOSTAPD_MODULE_RADIUS:
  78                 module_str = "RADIUS";
  79                 break;
  80         case HOSTAPD_MODULE_WPA:
  81                 module_str = "WPA";
  82                 break;
  83         case HOSTAPD_MODULE_DRIVER:
  84                 module_str = "DRIVER";
  85                 break;
  86         case HOSTAPD_MODULE_IAPP:
  87                 module_str = "IAPP";
  88                 break;
  89         case HOSTAPD_MODULE_MLME:
  90                 module_str = "MLME";
  91                 break;
  92         default:
  93                 module_str = NULL;
  94                 break;
  95         }
  96
  97         if (hapd && hapd->conf && addr)
  98                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
  99                             hapd->conf->iface, MAC2STR(addr),
 100                             module_str ? " " : "", module_str, txt);
 101         else if (hapd && hapd->conf)
 102                 os_snprintf(format, maxlen, "%s:%s%s %s",
 103                             hapd->conf->iface, module_str ? " " : "",
 104                             module_str, txt);
 105         else if (addr)
 106                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 107                             MAC2STR(addr), module_str ? " " : "",
 108                             module_str, txt);
 109         else
 110                 os_snprintf(format, maxlen, "%s%s%s",
 111                             module_str, module_str ? ": " : "", txt);
 112
 113         if ((conf_stdout & module) && level >= conf_stdout_level) {
 114                 wpa_debug_print_timestamp();
 115                 wpa_printf(MSG_INFO, "%s", format);
 116         }
 117
 118 #ifndef CONFIG_NATIVE_WINDOWS
 119         if ((conf_syslog & module) && level >= conf_syslog_level) {
 120                 int priority;
 121                 switch (level) {
 122                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 123                 case HOSTAPD_LEVEL_DEBUG:
 124                         priority = LOG_DEBUG;
 125                         break;
 126                 case HOSTAPD_LEVEL_INFO:
 127                         priority = LOG_INFO;
 128                         break;
 129                 case HOSTAPD_LEVEL_NOTICE:
 130                         priority = LOG_NOTICE;
 131                         break;
 132                 case HOSTAPD_LEVEL_WARNING:
 133                         priority = LOG_WARNING;
 134                         break;
 135                 default:
 136                         priority = LOG_INFO;
 137                         break;
 138                 }
 139                 syslog(priority, "%s", format);
 140         }
 141 #endif /* CONFIG_NATIVE_WINDOWS */
 142
 143         os_free(format);
 144 }
 145 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 146
 147
 148 /**
 149  * hostapd_driver_init - Preparate driver interface
 150  */
 151 static int hostapd_driver_init(struct hostapd_iface *iface)
 152 {
 153         struct wpa_init_params params;
 154         size_t i;
 155         struct hostapd_data *hapd = iface->bss[0];
 156         struct hostapd_bss_config *conf = hapd->conf;
 157         u8 *b = conf->bssid;
 158         struct wpa_driver_capa capa;
 159
 160         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 161                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 162                 return -1;
 163         }
 164
 165         /* Initialize the driver interface */
 166         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 167                 b = NULL;
 168
 169         os_memset(&params, 0, sizeof(params));
 170         for (i = 0; wpa_drivers[i]; i++) {
 171                 if (wpa_drivers[i] != hapd->driver)
 172                         continue;
 173
 174                 if (global.drv_priv[i] == NULL &&
 175                     wpa_drivers[i]->global_init) {
 176                         global.drv_priv[i] = wpa_drivers[i]->global_init();
 177                         if (global.drv_priv[i] == NULL) {
 178                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 179                                            "driver '%s'",
 180                                            wpa_drivers[i]->name);
 181                                 return -1;
 182                         }
 183                 }
 184
 185                 params.global_priv = global.drv_priv[i];
 186                 break;
 187         }
 188         params.bssid = b;
 189         params.ifname = hapd->conf->iface;
 190         params.ssid = hapd->conf->ssid.ssid;
 191         params.ssid_len = hapd->conf->ssid.ssid_len;
 192         params.test_socket = hapd->conf->test_socket;
 193         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 194
 195         params.num_bridge = hapd->iface->num_bss;
 196         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 197         if (params.bridge == NULL)
 198                 return -1;
 199         for (i = 0; i < hapd->iface->num_bss; i++) {
 200                 struct hostapd_data *bss = hapd->iface->bss[i];
 201                 if (bss->conf->bridge[0])
 202                         params.bridge[i] = bss->conf->bridge;
 203         }
 204
 205         params.own_addr = hapd->own_addr;
 206
 207         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 208         os_free(params.bridge);
 209         if (hapd->drv_priv == NULL) {
 210                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 211                            hapd->driver->name);
 212                 hapd->driver = NULL;
 213                 return -1;
 214         }
 215
 216         if (hapd->driver->get_capa &&
 217             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 218                 iface->drv_flags = capa.flags;
 219                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 220                 iface->extended_capa = capa.extended_capa;
 221                 iface->extended_capa_mask = capa.extended_capa_mask;
 222                 iface->extended_capa_len = capa.extended_capa_len;
 223                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 224         }
 225
 226         return 0;
 227 }
 228
 229
 230 /**
 231  * hostapd_interface_init - Read configuration file and init BSS data
 232  *
 233  * This function is used to parse configuration file for a full interface (one
 234  * or more BSSes sharing the same radio) and allocate memory for the BSS
 235  * interfaces. No actiual driver operations are started.
 236  */
 237 static struct hostapd_iface *
 238 hostapd_interface_init(struct hapd_interfaces *interfaces,
 239                        const char *config_fname, int debug)
 240 {
 241         struct hostapd_iface *iface;
 242         int k;
 243
 244         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 245         iface = hostapd_init(interfaces, config_fname);
 246         if (!iface)
 247                 return NULL;
 248         iface->interfaces = interfaces;
 249
 250         for (k = 0; k < debug; k++) {
 251                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 252                         iface->bss[0]->conf->logger_stdout_level--;
 253         }
 254
 255         if (iface->conf->bss[0]->iface[0] == '\0' &&
 256             !hostapd_drv_none(iface->bss[0])) {
 257                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 258                            config_fname);
 259                 hostapd_interface_deinit_free(iface);
 260                 return NULL;
 261         }
 262
 263         return iface;
 264 }
 265
 266
 267 /**
 268  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 269  */
 270 static void handle_term(int sig, void *signal_ctx)
 271 {
 272         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 273         eloop_terminate();
 274 }
 275
 276
 277 #ifndef CONFIG_NATIVE_WINDOWS
 278
 279 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 280 {
 281         if (hostapd_reload_config(iface) < 0) {
 282                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 283                            "file - continuing with old.");
 284         }
 285         return 0;
 286 }
 287
 288
 289 /**
 290  * handle_reload - SIGHUP handler to reload configuration
 291  */
 292 static void handle_reload(int sig, void *signal_ctx)
 293 {
 294         struct hapd_interfaces *interfaces = signal_ctx;
 295         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 296                    sig);
 297         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 298 }
 299
 300
 301 static void handle_dump_state(int sig, void *signal_ctx)
 302 {
 303 #ifdef HOSTAPD_DUMP_STATE
 304         struct hapd_interfaces *interfaces = signal_ctx;
 305         hostapd_for_each_interface(interfaces, handle_dump_state_iface, NULL);
 306 #endif /* HOSTAPD_DUMP_STATE */
 307 }
 308 #endif /* CONFIG_NATIVE_WINDOWS */
 309
 310
 311 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 312                                const char *entropy_file)
 313 {
 314         int i;
 315
 316         os_memset(&global, 0, sizeof(global));
 317
 318         hostapd_logger_register_cb(hostapd_logger_cb);
 319
 320         if (eap_server_register_methods()) {
 321                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 322                 return -1;
 323         }
 324
 325         if (eloop_init()) {
 326                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 327                 return -1;
 328         }
 329
 330         random_init(entropy_file);
 331
 332 #ifndef CONFIG_NATIVE_WINDOWS
 333         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 334         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 335 #endif /* CONFIG_NATIVE_WINDOWS */
 336         eloop_register_signal_terminate(handle_term, interfaces);
 337
 338 #ifndef CONFIG_NATIVE_WINDOWS
 339         openlog("hostapd", 0, LOG_DAEMON);
 340 #endif /* CONFIG_NATIVE_WINDOWS */
 341
 342         for (i = 0; wpa_drivers[i]; i++)
 343                 global.drv_count++;
 344         if (global.drv_count == 0) {
 345                 wpa_printf(MSG_ERROR, "No drivers enabled");
 346                 return -1;
 347         }
 348         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 349         if (global.drv_priv == NULL)
 350                 return -1;
 351
 352         return 0;
 353 }
 354
 355
 356 static void hostapd_global_deinit(const char *pid_file)
 357 {
 358         int i;
 359
 360         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 361                 if (!global.drv_priv[i])
 362                         continue;
 363                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 364         }
 365         os_free(global.drv_priv);
 366         global.drv_priv = NULL;
 367
 368 #ifdef EAP_SERVER_TNC
 369         tncs_global_deinit();
 370 #endif /* EAP_SERVER_TNC */
 371
 372         random_deinit();
 373
 374         eloop_destroy();
 375
 376 #ifndef CONFIG_NATIVE_WINDOWS
 377         closelog();
 378 #endif /* CONFIG_NATIVE_WINDOWS */
 379
 380         eap_server_unregister_methods();
 381
 382         os_daemonize_terminate(pid_file);
 383 }
 384
 385
 386 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 387                               const char *pid_file)
 388 {
 389 #ifdef EAP_SERVER_TNC
 390         int tnc = 0;
 391         size_t i, k;
 392
 393         for (i = 0; !tnc && i < ifaces->count; i++) {
 394                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 395                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 396                                 tnc++;
 397                                 break;
 398                         }
 399                 }
 400         }
 401
 402         if (tnc && tncs_global_init() < 0) {
 403                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 404                 return -1;
 405         }
 406 #endif /* EAP_SERVER_TNC */
 407
 408         if (daemonize && os_daemonize(pid_file)) {
 409                 perror("daemon");
 410                 return -1;
 411         }
 412
 413         eloop_run();
 414
 415         return 0;
 416 }
 417
 418
 419 static void show_version(void)
 420 {
 421         fprintf(stderr,
 422                 "hostapd v" VERSION_STR "\n"
 423                 "User space daemon for IEEE 802.11 AP management,\n"
 424                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 425                 "Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi> "
 426                 "and contributors\n");
 427 }
 428
 429
 430 static void usage(void)
 431 {
 432         show_version();
 433         fprintf(stderr,
 434                 "\n"
 435                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 436                 "\\\n"
 437                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 438                 "         <configuration file(s)>\n"
 439                 "\n"
 440                 "options:\n"
 441                 "   -h   show this usage\n"
 442                 "   -d   show more debug messages (-dd for even more)\n"
 443                 "   -B   run daemon in the background\n"
 444                 "   -e   entropy file\n"
 445                 "   -g   global control interface path\n"
 446                 "   -G   group for control interfaces\n"
 447                 "   -P   PID file\n"
 448                 "   -K   include key data in debug messages\n"
 449 #ifdef CONFIG_DEBUG_FILE
 450                 "   -f   log output to debug file instead of stdout\n"
 451 #endif /* CONFIG_DEBUG_FILE */
 452 #ifdef CONFIG_DEBUG_LINUX_TRACING
 453                 "   -T = record to Linux tracing in addition to logging\n"
 454                 "        (records all messages regardless of debug verbosity)\n"
 455 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 456                 "   -t   include timestamps in some debug messages\n"
 457                 "   -v   show hostapd version\n");
 458
 459         exit(1);
 460 }
 461
 462
 463 static const char * hostapd_msg_ifname_cb(void *ctx)
 464 {
 465         struct hostapd_data *hapd = ctx;
 466         if (hapd && hapd->iconf && hapd->iconf->bss &&
 467             hapd->iconf->num_bss > 0 && hapd->iconf->bss[0])
 468                 return hapd->iconf->bss[0]->iface;
 469         return NULL;
 470 }
 471
 472
 473 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 474                                          const char *path)
 475 {
 476         char *pos;
 477         os_free(interfaces->global_iface_path);
 478         interfaces->global_iface_path = os_strdup(path);
 479         if (interfaces->global_iface_path == NULL)
 480                 return -1;
 481         pos = os_strrchr(interfaces->global_iface_path, '/');
 482         if (pos == NULL) {
 483                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 484                            "file");
 485                 os_free(interfaces->global_iface_path);
 486                 interfaces->global_iface_path = NULL;
 487                 return -1;
 488         }
 489
 490         *pos = '\0';
 491         interfaces->global_iface_name = pos + 1;
 492
 493         return 0;
 494 }
 495
 496
 497 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 498                                         const char *group)
 499 {
 500 #ifndef CONFIG_NATIVE_WINDOWS
 501         struct group *grp;
 502         grp = getgrnam(group);
 503         if (grp == NULL) {
 504                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 505                 return -1;
 506         }
 507         interfaces->ctrl_iface_group = grp->gr_gid;
 508 #endif /* CONFIG_NATIVE_WINDOWS */
 509         return 0;
 510 }
 511
 512
 513 int main(int argc, char *argv[])
 514 {
 515         struct hapd_interfaces interfaces;
 516         int ret = 1;
 517         size_t i, j;
 518         int c, debug = 0, daemonize = 0;
 519         char *pid_file = NULL;
 520         const char *log_file = NULL;
 521         const char *entropy_file = NULL;
 522         char **bss_config = NULL, **tmp_bss;
 523         size_t num_bss_configs = 0;
 524 #ifdef CONFIG_DEBUG_LINUX_TRACING
 525         int enable_trace_dbg = 0;
 526 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 527
 528         if (os_program_init())
 529                 return -1;
 530
 531         os_memset(&interfaces, 0, sizeof(interfaces));
 532         interfaces.reload_config = hostapd_reload_config;
 533         interfaces.config_read_cb = hostapd_config_read;
 534         interfaces.for_each_interface = hostapd_for_each_interface;
 535         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 536         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 537         interfaces.driver_init = hostapd_driver_init;
 538         interfaces.global_iface_path = NULL;
 539         interfaces.global_iface_name = NULL;
 540         interfaces.global_ctrl_sock = -1;
 541
 542         for (;;) {
 543                 c = getopt(argc, argv, "b:Bde:f:hKP:Ttvg:G:");
 544                 if (c < 0)
 545                         break;
 546                 switch (c) {
 547                 case 'h':
 548                         usage();
 549                         break;
 550                 case 'd':
 551                         debug++;
 552                         if (wpa_debug_level > 0)
 553                                 wpa_debug_level--;
 554                         break;
 555                 case 'B':
 556                         daemonize++;
 557                         break;
 558                 case 'e':
 559                         entropy_file = optarg;
 560                         break;
 561                 case 'f':
 562                         log_file = optarg;
 563                         break;
 564                 case 'K':
 565                         wpa_debug_show_keys++;
 566                         break;
 567                 case 'P':
 568                         os_free(pid_file);
 569                         pid_file = os_rel2abs_path(optarg);
 570                         break;
 571                 case 't':
 572                         wpa_debug_timestamp++;
 573                         break;
 574 #ifdef CONFIG_DEBUG_LINUX_TRACING
 575                 case 'T':
 576                         enable_trace_dbg = 1;
 577                         break;
 578 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 579                 case 'v':
 580                         show_version();
 581                         exit(1);
 582                         break;
 583                 case 'g':
 584                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 585                                 return -1;
 586                         break;
 587                 case 'G':
 588                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 589                                 return -1;
 590                         break;
 591                 case 'b':
 592                         tmp_bss = os_realloc_array(bss_config,
 593                                                    num_bss_configs + 1,
 594                                                    sizeof(char *));
 595                         if (tmp_bss == NULL)
 596                                 goto out;
 597                         bss_config = tmp_bss;
 598                         bss_config[num_bss_configs++] = optarg;
 599                         break;
 600                 default:
 601                         usage();
 602                         break;
 603                 }
 604         }
 605
 606         if (optind == argc && interfaces.global_iface_path == NULL &&
 607             num_bss_configs == 0)
 608                 usage();
 609
 610         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 611
 612         if (log_file)
 613                 wpa_debug_open_file(log_file);
 614 #ifdef CONFIG_DEBUG_LINUX_TRACING
 615         if (enable_trace_dbg) {
 616                 int tret = wpa_debug_open_linux_tracing();
 617                 if (tret) {
 618                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 619                         return -1;
 620                 }
 621         }
 622 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 623
 624         interfaces.count = argc - optind;
 625         if (interfaces.count || num_bss_configs) {
 626                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 627                                              sizeof(struct hostapd_iface *));
 628                 if (interfaces.iface == NULL) {
 629                         wpa_printf(MSG_ERROR, "malloc failed");
 630                         return -1;
 631                 }
 632         }
 633
 634         if (hostapd_global_init(&interfaces, entropy_file)) {
 635                 wpa_printf(MSG_ERROR, "Failed to initilize global context");
 636                 return -1;
 637         }
 638
 639         /* Allocate and parse configuration for full interface files */
 640         for (i = 0; i < interfaces.count; i++) {
 641                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 642                                                              argv[optind + i],
 643                                                              debug);
 644                 if (!interfaces.iface[i]) {
 645                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 646                         goto out;
 647                 }
 648         }
 649
 650         /* Allocate and parse configuration for per-BSS files */
 651         for (i = 0; i < num_bss_configs; i++) {
 652                 struct hostapd_iface *iface;
 653                 char *fname;
 654
 655                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 656                 fname = os_strchr(bss_config[i], ':');
 657                 if (fname == NULL) {
 658                         wpa_printf(MSG_ERROR,
 659                                    "Invalid BSS config identifier '%s'",
 660                                    bss_config[i]);
 661                         goto out;
 662                 }
 663                 *fname++ = '\0';
 664                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 665                                                    fname, debug);
 666                 if (iface == NULL)
 667                         goto out;
 668                 for (j = 0; j < interfaces.count; j++) {
 669                         if (interfaces.iface[j] == iface)
 670                                 break;
 671                 }
 672                 if (j == interfaces.count) {
 673                         struct hostapd_iface **tmp;
 674                         tmp = os_realloc_array(interfaces.iface,
 675                                                interfaces.count + 1,
 676                                                sizeof(struct hostapd_iface *));
 677                         if (tmp == NULL) {
 678                                 hostapd_interface_deinit_free(iface);
 679                                 goto out;
 680                         }
 681                         interfaces.iface = tmp;
 682                         interfaces.iface[interfaces.count++] = iface;
 683                 }
 684         }
 685
 686         /*
 687          * Enable configured interfaces. Depending on channel configuration,
 688          * this may complete full initialization before returning or use a
 689          * callback mechanism to complete setup in case of operations like HT
 690          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 691          * In such case, the interface will be enabled from eloop context within
 692          * hostapd_global_run().
 693          */
 694         interfaces.terminate_on_error = interfaces.count;
 695         for (i = 0; i < interfaces.count; i++) {
 696                 if (hostapd_driver_init(interfaces.iface[i]) ||
 697                     hostapd_setup_interface(interfaces.iface[i]))
 698                         goto out;
 699         }
 700
 701         hostapd_global_ctrl_iface_init(&interfaces);
 702
 703         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 704                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 705                 goto out;
 706         }
 707
 708         ret = 0;
 709
 710  out:
 711         hostapd_global_ctrl_iface_deinit(&interfaces);
 712         /* Deinitialize all interfaces */
 713         for (i = 0; i < interfaces.count; i++)
 714                 hostapd_interface_deinit_free(interfaces.iface[i]);
 715         os_free(interfaces.iface);
 716
 717         hostapd_global_deinit(pid_file);
 718         os_free(pid_file);
 719
 720         if (log_file)
 721                 wpa_debug_close_file();
 722         wpa_debug_close_linux_tracing();
 723
 724         os_free(bss_config);
 725
 726         os_program_deinit();
 727
 728         return ret;
 729 }