hostapd/main.c

   1 /*
   2  * hostapd / main()
   3  * Copyright (c) 2002-2015, 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 "utils/uuid.h"
  18 #include "crypto/random.h"
  19 #include "crypto/tls.h"
  20 #include "common/version.h"
  21 #include "drivers/driver.h"
  22 #include "eap_server/eap.h"
  23 #include "eap_server/tncs.h"
  24 #include "ap/hostapd.h"
  25 #include "ap/ap_config.h"
  26 #include "ap/ap_drv_ops.h"
  27 #include "config_file.h"
  28 #include "eap_register.h"
  29 #include "ctrl_iface.h"
  30
  31
  32 struct hapd_global {
  33         void **drv_priv;
  34         size_t drv_count;
  35 };
  36
  37 static struct hapd_global global;
  38
  39
  40 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  41 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  42                               int level, const char *txt, size_t len)
  43 {
  44         struct hostapd_data *hapd = ctx;
  45         char *format, *module_str;
  46         int maxlen;
  47         int conf_syslog_level, conf_stdout_level;
  48         unsigned int conf_syslog, conf_stdout;
  49
  50         maxlen = len + 100;
  51         format = os_malloc(maxlen);
  52         if (!format)
  53                 return;
  54
  55         if (hapd && hapd->conf) {
  56                 conf_syslog_level = hapd->conf->logger_syslog_level;
  57                 conf_stdout_level = hapd->conf->logger_stdout_level;
  58                 conf_syslog = hapd->conf->logger_syslog;
  59                 conf_stdout = hapd->conf->logger_stdout;
  60         } else {
  61                 conf_syslog_level = conf_stdout_level = 0;
  62                 conf_syslog = conf_stdout = (unsigned int) -1;
  63         }
  64
  65         switch (module) {
  66         case HOSTAPD_MODULE_IEEE80211:
  67                 module_str = "IEEE 802.11";
  68                 break;
  69         case HOSTAPD_MODULE_IEEE8021X:
  70                 module_str = "IEEE 802.1X";
  71                 break;
  72         case HOSTAPD_MODULE_RADIUS:
  73                 module_str = "RADIUS";
  74                 break;
  75         case HOSTAPD_MODULE_WPA:
  76                 module_str = "WPA";
  77                 break;
  78         case HOSTAPD_MODULE_DRIVER:
  79                 module_str = "DRIVER";
  80                 break;
  81         case HOSTAPD_MODULE_IAPP:
  82                 module_str = "IAPP";
  83                 break;
  84         case HOSTAPD_MODULE_MLME:
  85                 module_str = "MLME";
  86                 break;
  87         default:
  88                 module_str = NULL;
  89                 break;
  90         }
  91
  92         if (hapd && hapd->conf && addr)
  93                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
  94                             hapd->conf->iface, MAC2STR(addr),
  95                             module_str ? " " : "", module_str ? module_str : "",
  96                             txt);
  97         else if (hapd && hapd->conf)
  98                 os_snprintf(format, maxlen, "%s:%s%s %s",
  99                             hapd->conf->iface, module_str ? " " : "",
 100                             module_str ? module_str : "", txt);
 101         else if (addr)
 102                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 103                             MAC2STR(addr), module_str ? " " : "",
 104                             module_str ? module_str : "", txt);
 105         else
 106                 os_snprintf(format, maxlen, "%s%s%s",
 107                             module_str ? module_str : "",
 108                             module_str ? ": " : "", txt);
 109
 110         if ((conf_stdout & module) && level >= conf_stdout_level) {
 111                 wpa_debug_print_timestamp();
 112                 wpa_printf(MSG_INFO, "%s", format);
 113         }
 114
 115 #ifndef CONFIG_NATIVE_WINDOWS
 116         if ((conf_syslog & module) && level >= conf_syslog_level) {
 117                 int priority;
 118                 switch (level) {
 119                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 120                 case HOSTAPD_LEVEL_DEBUG:
 121                         priority = LOG_DEBUG;
 122                         break;
 123                 case HOSTAPD_LEVEL_INFO:
 124                         priority = LOG_INFO;
 125                         break;
 126                 case HOSTAPD_LEVEL_NOTICE:
 127                         priority = LOG_NOTICE;
 128                         break;
 129                 case HOSTAPD_LEVEL_WARNING:
 130                         priority = LOG_WARNING;
 131                         break;
 132                 default:
 133                         priority = LOG_INFO;
 134                         break;
 135                 }
 136                 syslog(priority, "%s", format);
 137         }
 138 #endif /* CONFIG_NATIVE_WINDOWS */
 139
 140         os_free(format);
 141 }
 142 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 143
 144
 145 /**
 146  * hostapd_driver_init - Preparate driver interface
 147  */
 148 static int hostapd_driver_init(struct hostapd_iface *iface)
 149 {
 150         struct wpa_init_params params;
 151         size_t i;
 152         struct hostapd_data *hapd = iface->bss[0];
 153         struct hostapd_bss_config *conf = hapd->conf;
 154         u8 *b = conf->bssid;
 155         struct wpa_driver_capa capa;
 156
 157         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 158                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 159                 return -1;
 160         }
 161
 162         /* Initialize the driver interface */
 163         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 164                 b = NULL;
 165
 166         os_memset(&params, 0, sizeof(params));
 167         for (i = 0; wpa_drivers[i]; i++) {
 168                 if (wpa_drivers[i] != hapd->driver)
 169                         continue;
 170
 171                 if (global.drv_priv[i] == NULL &&
 172                     wpa_drivers[i]->global_init) {
 173                         global.drv_priv[i] = wpa_drivers[i]->global_init();
 174                         if (global.drv_priv[i] == NULL) {
 175                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 176                                            "driver '%s'",
 177                                            wpa_drivers[i]->name);
 178                                 return -1;
 179                         }
 180                 }
 181
 182                 params.global_priv = global.drv_priv[i];
 183                 break;
 184         }
 185         params.bssid = b;
 186         params.ifname = hapd->conf->iface;
 187         params.driver_params = hapd->iconf->driver_params;
 188         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 189
 190         params.num_bridge = hapd->iface->num_bss;
 191         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 192         if (params.bridge == NULL)
 193                 return -1;
 194         for (i = 0; i < hapd->iface->num_bss; i++) {
 195                 struct hostapd_data *bss = hapd->iface->bss[i];
 196                 if (bss->conf->bridge[0])
 197                         params.bridge[i] = bss->conf->bridge;
 198         }
 199
 200         params.own_addr = hapd->own_addr;
 201
 202         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 203         os_free(params.bridge);
 204         if (hapd->drv_priv == NULL) {
 205                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 206                            hapd->driver->name);
 207                 hapd->driver = NULL;
 208                 return -1;
 209         }
 210
 211         if (hapd->driver->get_capa &&
 212             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 213                 struct wowlan_triggers *triggs;
 214
 215                 iface->drv_flags = capa.flags;
 216                 iface->smps_modes = capa.smps_modes;
 217                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 218                 iface->extended_capa = capa.extended_capa;
 219                 iface->extended_capa_mask = capa.extended_capa_mask;
 220                 iface->extended_capa_len = capa.extended_capa_len;
 221                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 222
 223                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 224                 if (triggs && hapd->driver->set_wowlan) {
 225                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 226                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 227                 }
 228                 os_free(triggs);
 229         }
 230
 231         return 0;
 232 }
 233
 234
 235 /**
 236  * hostapd_interface_init - Read configuration file and init BSS data
 237  *
 238  * This function is used to parse configuration file for a full interface (one
 239  * or more BSSes sharing the same radio) and allocate memory for the BSS
 240  * interfaces. No actiual driver operations are started.
 241  */
 242 static struct hostapd_iface *
 243 hostapd_interface_init(struct hapd_interfaces *interfaces,
 244                        const char *config_fname, int debug)
 245 {
 246         struct hostapd_iface *iface;
 247         int k;
 248
 249         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 250         iface = hostapd_init(interfaces, config_fname);
 251         if (!iface)
 252                 return NULL;
 253         iface->interfaces = interfaces;
 254
 255         for (k = 0; k < debug; k++) {
 256                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 257                         iface->bss[0]->conf->logger_stdout_level--;
 258         }
 259
 260         if (iface->conf->bss[0]->iface[0] == '\0' &&
 261             !hostapd_drv_none(iface->bss[0])) {
 262                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 263                            config_fname);
 264                 hostapd_interface_deinit_free(iface);
 265                 return NULL;
 266         }
 267
 268         return iface;
 269 }
 270
 271
 272 /**
 273  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 274  */
 275 static void handle_term(int sig, void *signal_ctx)
 276 {
 277         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 278         eloop_terminate();
 279 }
 280
 281
 282 #ifndef CONFIG_NATIVE_WINDOWS
 283
 284 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 285 {
 286         if (hostapd_reload_config(iface) < 0) {
 287                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 288                            "file - continuing with old.");
 289         }
 290         return 0;
 291 }
 292
 293
 294 /**
 295  * handle_reload - SIGHUP handler to reload configuration
 296  */
 297 static void handle_reload(int sig, void *signal_ctx)
 298 {
 299         struct hapd_interfaces *interfaces = signal_ctx;
 300         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 301                    sig);
 302         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 303 }
 304
 305
 306 static void handle_dump_state(int sig, void *signal_ctx)
 307 {
 308         /* Not used anymore - ignore signal */
 309 }
 310 #endif /* CONFIG_NATIVE_WINDOWS */
 311
 312
 313 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 314                                const char *entropy_file)
 315 {
 316         int i;
 317
 318         os_memset(&global, 0, sizeof(global));
 319
 320         hostapd_logger_register_cb(hostapd_logger_cb);
 321
 322         if (eap_server_register_methods()) {
 323                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 324                 return -1;
 325         }
 326
 327         if (eloop_init()) {
 328                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 329                 return -1;
 330         }
 331
 332         random_init(entropy_file);
 333
 334 #ifndef CONFIG_NATIVE_WINDOWS
 335         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 336         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 337 #endif /* CONFIG_NATIVE_WINDOWS */
 338         eloop_register_signal_terminate(handle_term, interfaces);
 339
 340 #ifndef CONFIG_NATIVE_WINDOWS
 341         openlog("hostapd", 0, LOG_DAEMON);
 342 #endif /* CONFIG_NATIVE_WINDOWS */
 343
 344         for (i = 0; wpa_drivers[i]; i++)
 345                 global.drv_count++;
 346         if (global.drv_count == 0) {
 347                 wpa_printf(MSG_ERROR, "No drivers enabled");
 348                 return -1;
 349         }
 350         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 351         if (global.drv_priv == NULL)
 352                 return -1;
 353
 354         return 0;
 355 }
 356
 357
 358 static void hostapd_global_deinit(const char *pid_file)
 359 {
 360         int i;
 361
 362         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 363                 if (!global.drv_priv[i])
 364                         continue;
 365                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 366         }
 367         os_free(global.drv_priv);
 368         global.drv_priv = NULL;
 369
 370 #ifdef EAP_SERVER_TNC
 371         tncs_global_deinit();
 372 #endif /* EAP_SERVER_TNC */
 373
 374         random_deinit();
 375
 376         eloop_destroy();
 377
 378 #ifndef CONFIG_NATIVE_WINDOWS
 379         closelog();
 380 #endif /* CONFIG_NATIVE_WINDOWS */
 381
 382         eap_server_unregister_methods();
 383
 384         os_daemonize_terminate(pid_file);
 385 }
 386
 387
 388 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 389                               const char *pid_file)
 390 {
 391 #ifdef EAP_SERVER_TNC
 392         int tnc = 0;
 393         size_t i, k;
 394
 395         for (i = 0; !tnc && i < ifaces->count; i++) {
 396                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 397                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 398                                 tnc++;
 399                                 break;
 400                         }
 401                 }
 402         }
 403
 404         if (tnc && tncs_global_init() < 0) {
 405                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 406                 return -1;
 407         }
 408 #endif /* EAP_SERVER_TNC */
 409
 410         if (daemonize && os_daemonize(pid_file)) {
 411                 wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 412                 return -1;
 413         }
 414
 415         eloop_run();
 416
 417         return 0;
 418 }
 419
 420
 421 static void show_version(void)
 422 {
 423         fprintf(stderr,
 424                 "hostapd v" VERSION_STR "\n"
 425                 "User space daemon for IEEE 802.11 AP management,\n"
 426                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 427                 "Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi> "
 428                 "and contributors\n");
 429 }
 430
 431
 432 static void usage(void)
 433 {
 434         show_version();
 435         fprintf(stderr,
 436                 "\n"
 437                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 438                 "\\\n"
 439                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 440                 "         <configuration file(s)>\n"
 441                 "\n"
 442                 "options:\n"
 443                 "   -h   show this usage\n"
 444                 "   -d   show more debug messages (-dd for even more)\n"
 445                 "   -B   run daemon in the background\n"
 446                 "   -e   entropy file\n"
 447                 "   -g   global control interface path\n"
 448                 "   -G   group for control interfaces\n"
 449                 "   -P   PID file\n"
 450                 "   -K   include key data in debug messages\n"
 451 #ifdef CONFIG_DEBUG_FILE
 452                 "   -f   log output to debug file instead of stdout\n"
 453 #endif /* CONFIG_DEBUG_FILE */
 454 #ifdef CONFIG_DEBUG_LINUX_TRACING
 455                 "   -T = record to Linux tracing in addition to logging\n"
 456                 "        (records all messages regardless of debug verbosity)\n"
 457 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 458                 "   -t   include timestamps in some debug messages\n"
 459                 "   -v   show hostapd version\n");
 460
 461         exit(1);
 462 }
 463
 464
 465 static const char * hostapd_msg_ifname_cb(void *ctx)
 466 {
 467         struct hostapd_data *hapd = ctx;
 468         if (hapd && hapd->iconf && hapd->iconf->bss &&
 469             hapd->iconf->num_bss > 0 && hapd->iconf->bss[0])
 470                 return hapd->iconf->bss[0]->iface;
 471         return NULL;
 472 }
 473
 474
 475 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 476                                          const char *path)
 477 {
 478         char *pos;
 479         os_free(interfaces->global_iface_path);
 480         interfaces->global_iface_path = os_strdup(path);
 481         if (interfaces->global_iface_path == NULL)
 482                 return -1;
 483         pos = os_strrchr(interfaces->global_iface_path, '/');
 484         if (pos == NULL) {
 485                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 486                            "file");
 487                 os_free(interfaces->global_iface_path);
 488                 interfaces->global_iface_path = NULL;
 489                 return -1;
 490         }
 491
 492         *pos = '\0';
 493         interfaces->global_iface_name = pos + 1;
 494
 495         return 0;
 496 }
 497
 498
 499 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 500                                         const char *group)
 501 {
 502 #ifndef CONFIG_NATIVE_WINDOWS
 503         struct group *grp;
 504         grp = getgrnam(group);
 505         if (grp == NULL) {
 506                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 507                 return -1;
 508         }
 509         interfaces->ctrl_iface_group = grp->gr_gid;
 510 #endif /* CONFIG_NATIVE_WINDOWS */
 511         return 0;
 512 }
 513
 514
 515 #ifdef CONFIG_WPS
 516 static int gen_uuid(const char *txt_addr)
 517 {
 518         u8 addr[ETH_ALEN];
 519         u8 uuid[UUID_LEN];
 520         char buf[100];
 521
 522         if (hwaddr_aton(txt_addr, addr) < 0)
 523                 return -1;
 524
 525         uuid_gen_mac_addr(addr, uuid);
 526         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 527                 return -1;
 528
 529         printf("%s\n", buf);
 530
 531         return 0;
 532 }
 533 #endif /* CONFIG_WPS */
 534
 535
 536 int main(int argc, char *argv[])
 537 {
 538         struct hapd_interfaces interfaces;
 539         int ret = 1;
 540         size_t i, j;
 541         int c, debug = 0, daemonize = 0;
 542         char *pid_file = NULL;
 543         const char *log_file = NULL;
 544         const char *entropy_file = NULL;
 545         char **bss_config = NULL, **tmp_bss;
 546         size_t num_bss_configs = 0;
 547 #ifdef CONFIG_DEBUG_LINUX_TRACING
 548         int enable_trace_dbg = 0;
 549 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 550
 551         if (os_program_init())
 552                 return -1;
 553
 554         os_memset(&interfaces, 0, sizeof(interfaces));
 555         interfaces.reload_config = hostapd_reload_config;
 556         interfaces.config_read_cb = hostapd_config_read;
 557         interfaces.for_each_interface = hostapd_for_each_interface;
 558         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 559         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 560         interfaces.driver_init = hostapd_driver_init;
 561         interfaces.global_iface_path = NULL;
 562         interfaces.global_iface_name = NULL;
 563         interfaces.global_ctrl_sock = -1;
 564         interfaces.global_ctrl_dst = NULL;
 565
 566         for (;;) {
 567                 c = getopt(argc, argv, "b:Bde:f:hKP:Ttu:vg:G:");
 568                 if (c < 0)
 569                         break;
 570                 switch (c) {
 571                 case 'h':
 572                         usage();
 573                         break;
 574                 case 'd':
 575                         debug++;
 576                         if (wpa_debug_level > 0)
 577                                 wpa_debug_level--;
 578                         break;
 579                 case 'B':
 580                         daemonize++;
 581                         break;
 582                 case 'e':
 583                         entropy_file = optarg;
 584                         break;
 585                 case 'f':
 586                         log_file = optarg;
 587                         break;
 588                 case 'K':
 589                         wpa_debug_show_keys++;
 590                         break;
 591                 case 'P':
 592                         os_free(pid_file);
 593                         pid_file = os_rel2abs_path(optarg);
 594                         break;
 595                 case 't':
 596                         wpa_debug_timestamp++;
 597                         break;
 598 #ifdef CONFIG_DEBUG_LINUX_TRACING
 599                 case 'T':
 600                         enable_trace_dbg = 1;
 601                         break;
 602 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 603                 case 'v':
 604                         show_version();
 605                         exit(1);
 606                         break;
 607                 case 'g':
 608                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 609                                 return -1;
 610                         break;
 611                 case 'G':
 612                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 613                                 return -1;
 614                         break;
 615                 case 'b':
 616                         tmp_bss = os_realloc_array(bss_config,
 617                                                    num_bss_configs + 1,
 618                                                    sizeof(char *));
 619                         if (tmp_bss == NULL)
 620                                 goto out;
 621                         bss_config = tmp_bss;
 622                         bss_config[num_bss_configs++] = optarg;
 623                         break;
 624 #ifdef CONFIG_WPS
 625                 case 'u':
 626                         return gen_uuid(optarg);
 627 #endif /* CONFIG_WPS */
 628                 default:
 629                         usage();
 630                         break;
 631                 }
 632         }
 633
 634         if (optind == argc && interfaces.global_iface_path == NULL &&
 635             num_bss_configs == 0)
 636                 usage();
 637
 638         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 639
 640         if (log_file)
 641                 wpa_debug_open_file(log_file);
 642         else
 643                 wpa_debug_setup_stdout();
 644 #ifdef CONFIG_DEBUG_LINUX_TRACING
 645         if (enable_trace_dbg) {
 646                 int tret = wpa_debug_open_linux_tracing();
 647                 if (tret) {
 648                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 649                         return -1;
 650                 }
 651         }
 652 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 653
 654         interfaces.count = argc - optind;
 655         if (interfaces.count || num_bss_configs) {
 656                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 657                                              sizeof(struct hostapd_iface *));
 658                 if (interfaces.iface == NULL) {
 659                         wpa_printf(MSG_ERROR, "malloc failed");
 660                         return -1;
 661                 }
 662         }
 663
 664         if (hostapd_global_init(&interfaces, entropy_file)) {
 665                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 666                 return -1;
 667         }
 668
 669         /* Allocate and parse configuration for full interface files */
 670         for (i = 0; i < interfaces.count; i++) {
 671                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 672                                                              argv[optind + i],
 673                                                              debug);
 674                 if (!interfaces.iface[i]) {
 675                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 676                         goto out;
 677                 }
 678         }
 679
 680         /* Allocate and parse configuration for per-BSS files */
 681         for (i = 0; i < num_bss_configs; i++) {
 682                 struct hostapd_iface *iface;
 683                 char *fname;
 684
 685                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 686                 fname = os_strchr(bss_config[i], ':');
 687                 if (fname == NULL) {
 688                         wpa_printf(MSG_ERROR,
 689                                    "Invalid BSS config identifier '%s'",
 690                                    bss_config[i]);
 691                         goto out;
 692                 }
 693                 *fname++ = '\0';
 694                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 695                                                    fname, debug);
 696                 if (iface == NULL)
 697                         goto out;
 698                 for (j = 0; j < interfaces.count; j++) {
 699                         if (interfaces.iface[j] == iface)
 700                                 break;
 701                 }
 702                 if (j == interfaces.count) {
 703                         struct hostapd_iface **tmp;
 704                         tmp = os_realloc_array(interfaces.iface,
 705                                                interfaces.count + 1,
 706                                                sizeof(struct hostapd_iface *));
 707                         if (tmp == NULL) {
 708                                 hostapd_interface_deinit_free(iface);
 709                                 goto out;
 710                         }
 711                         interfaces.iface = tmp;
 712                         interfaces.iface[interfaces.count++] = iface;
 713                 }
 714         }
 715
 716         /*
 717          * Enable configured interfaces. Depending on channel configuration,
 718          * this may complete full initialization before returning or use a
 719          * callback mechanism to complete setup in case of operations like HT
 720          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 721          * In such case, the interface will be enabled from eloop context within
 722          * hostapd_global_run().
 723          */
 724         interfaces.terminate_on_error = interfaces.count;
 725         for (i = 0; i < interfaces.count; i++) {
 726                 if (hostapd_driver_init(interfaces.iface[i]) ||
 727                     hostapd_setup_interface(interfaces.iface[i]))
 728                         goto out;
 729         }
 730
 731         hostapd_global_ctrl_iface_init(&interfaces);
 732
 733         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 734                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 735                 goto out;
 736         }
 737
 738         ret = 0;
 739
 740  out:
 741         hostapd_global_ctrl_iface_deinit(&interfaces);
 742         /* Deinitialize all interfaces */
 743         for (i = 0; i < interfaces.count; i++) {
 744                 if (!interfaces.iface[i])
 745                         continue;
 746                 interfaces.iface[i]->driver_ap_teardown =
 747                         !!(interfaces.iface[i]->drv_flags &
 748                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 749                 hostapd_interface_deinit_free(interfaces.iface[i]);
 750         }
 751         os_free(interfaces.iface);
 752
 753         hostapd_global_deinit(pid_file);
 754         os_free(pid_file);
 755
 756         if (log_file)
 757                 wpa_debug_close_file();
 758         wpa_debug_close_linux_tracing();
 759
 760         os_free(bss_config);
 761
 762         os_program_deinit();
 763
 764         return ret;
 765 }