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 "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, txt);
 101         else if (addr)
 102                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 103                             MAC2STR(addr), module_str ? " " : "",
 104                             module_str, txt);
 105         else
 106                 os_snprintf(format, maxlen, "%s%s%s",
 107                             module_str, module_str ? ": " : "", txt);
 108
 109         if ((conf_stdout & module) && level >= conf_stdout_level) {
 110                 wpa_debug_print_timestamp();
 111                 wpa_printf(MSG_INFO, "%s", format);
 112         }
 113
 114 #ifndef CONFIG_NATIVE_WINDOWS
 115         if ((conf_syslog & module) && level >= conf_syslog_level) {
 116                 int priority;
 117                 switch (level) {
 118                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 119                 case HOSTAPD_LEVEL_DEBUG:
 120                         priority = LOG_DEBUG;
 121                         break;
 122                 case HOSTAPD_LEVEL_INFO:
 123                         priority = LOG_INFO;
 124                         break;
 125                 case HOSTAPD_LEVEL_NOTICE:
 126                         priority = LOG_NOTICE;
 127                         break;
 128                 case HOSTAPD_LEVEL_WARNING:
 129                         priority = LOG_WARNING;
 130                         break;
 131                 default:
 132                         priority = LOG_INFO;
 133                         break;
 134                 }
 135                 syslog(priority, "%s", format);
 136         }
 137 #endif /* CONFIG_NATIVE_WINDOWS */
 138
 139         os_free(format);
 140 }
 141 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 142
 143
 144 /**
 145  * hostapd_driver_init - Preparate driver interface
 146  */
 147 static int hostapd_driver_init(struct hostapd_iface *iface)
 148 {
 149         struct wpa_init_params params;
 150         size_t i;
 151         struct hostapd_data *hapd = iface->bss[0];
 152         struct hostapd_bss_config *conf = hapd->conf;
 153         u8 *b = conf->bssid;
 154         struct wpa_driver_capa capa;
 155
 156         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 157                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 158                 return -1;
 159         }
 160
 161         /* Initialize the driver interface */
 162         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 163                 b = NULL;
 164
 165         os_memset(&params, 0, sizeof(params));
 166         for (i = 0; wpa_drivers[i]; i++) {
 167                 if (wpa_drivers[i] != hapd->driver)
 168                         continue;
 169
 170                 if (global.drv_priv[i] == NULL &&
 171                     wpa_drivers[i]->global_init) {
 172                         global.drv_priv[i] = wpa_drivers[i]->global_init();
 173                         if (global.drv_priv[i] == NULL) {
 174                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 175                                            "driver '%s'",
 176                                            wpa_drivers[i]->name);
 177                                 return -1;
 178                         }
 179                 }
 180
 181                 params.global_priv = global.drv_priv[i];
 182                 break;
 183         }
 184         params.bssid = b;
 185         params.ifname = hapd->conf->iface;
 186         params.ssid = hapd->conf->ssid.ssid;
 187         params.ssid_len = hapd->conf->ssid.ssid_len;
 188         params.test_socket = hapd->conf->test_socket;
 189         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 190
 191         params.num_bridge = hapd->iface->num_bss;
 192         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 193         if (params.bridge == NULL)
 194                 return -1;
 195         for (i = 0; i < hapd->iface->num_bss; i++) {
 196                 struct hostapd_data *bss = hapd->iface->bss[i];
 197                 if (bss->conf->bridge[0])
 198                         params.bridge[i] = bss->conf->bridge;
 199         }
 200
 201         params.own_addr = hapd->own_addr;
 202
 203         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 204         os_free(params.bridge);
 205         if (hapd->drv_priv == NULL) {
 206                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 207                            hapd->driver->name);
 208                 hapd->driver = NULL;
 209                 return -1;
 210         }
 211
 212         if (hapd->driver->get_capa &&
 213             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 214                 iface->drv_flags = capa.flags;
 215                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 216                 iface->extended_capa = capa.extended_capa;
 217                 iface->extended_capa_mask = capa.extended_capa_mask;
 218                 iface->extended_capa_len = capa.extended_capa_len;
 219                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 220         }
 221
 222         return 0;
 223 }
 224
 225
 226 /**
 227  * hostapd_interface_init - Read configuration file and init BSS data
 228  *
 229  * This function is used to parse configuration file for a full interface (one
 230  * or more BSSes sharing the same radio) and allocate memory for the BSS
 231  * interfaces. No actiual driver operations are started.
 232  */
 233 static struct hostapd_iface *
 234 hostapd_interface_init(struct hapd_interfaces *interfaces,
 235                        const char *config_fname, int debug)
 236 {
 237         struct hostapd_iface *iface;
 238         int k;
 239
 240         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 241         iface = hostapd_init(interfaces, config_fname);
 242         if (!iface)
 243                 return NULL;
 244         iface->interfaces = interfaces;
 245
 246         for (k = 0; k < debug; k++) {
 247                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 248                         iface->bss[0]->conf->logger_stdout_level--;
 249         }
 250
 251         if (iface->conf->bss[0]->iface[0] == '\0' &&
 252             !hostapd_drv_none(iface->bss[0])) {
 253                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 254                            config_fname);
 255                 hostapd_interface_deinit_free(iface);
 256                 return NULL;
 257         }
 258
 259         return iface;
 260 }
 261
 262
 263 /**
 264  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 265  */
 266 static void handle_term(int sig, void *signal_ctx)
 267 {
 268         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 269         eloop_terminate();
 270 }
 271
 272
 273 #ifndef CONFIG_NATIVE_WINDOWS
 274
 275 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 276 {
 277         if (hostapd_reload_config(iface) < 0) {
 278                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 279                            "file - continuing with old.");
 280         }
 281         return 0;
 282 }
 283
 284
 285 /**
 286  * handle_reload - SIGHUP handler to reload configuration
 287  */
 288 static void handle_reload(int sig, void *signal_ctx)
 289 {
 290         struct hapd_interfaces *interfaces = signal_ctx;
 291         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 292                    sig);
 293         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 294 }
 295
 296
 297 static void handle_dump_state(int sig, void *signal_ctx)
 298 {
 299         /* Not used anymore - ignore signal */
 300 }
 301 #endif /* CONFIG_NATIVE_WINDOWS */
 302
 303
 304 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 305                                const char *entropy_file)
 306 {
 307         int i;
 308
 309         os_memset(&global, 0, sizeof(global));
 310
 311         hostapd_logger_register_cb(hostapd_logger_cb);
 312
 313         if (eap_server_register_methods()) {
 314                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 315                 return -1;
 316         }
 317
 318         if (eloop_init()) {
 319                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 320                 return -1;
 321         }
 322
 323         random_init(entropy_file);
 324
 325 #ifndef CONFIG_NATIVE_WINDOWS
 326         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 327         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 328 #endif /* CONFIG_NATIVE_WINDOWS */
 329         eloop_register_signal_terminate(handle_term, interfaces);
 330
 331 #ifndef CONFIG_NATIVE_WINDOWS
 332         openlog("hostapd", 0, LOG_DAEMON);
 333 #endif /* CONFIG_NATIVE_WINDOWS */
 334
 335         for (i = 0; wpa_drivers[i]; i++)
 336                 global.drv_count++;
 337         if (global.drv_count == 0) {
 338                 wpa_printf(MSG_ERROR, "No drivers enabled");
 339                 return -1;
 340         }
 341         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 342         if (global.drv_priv == NULL)
 343                 return -1;
 344
 345         return 0;
 346 }
 347
 348
 349 static void hostapd_global_deinit(const char *pid_file)
 350 {
 351         int i;
 352
 353         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 354                 if (!global.drv_priv[i])
 355                         continue;
 356                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 357         }
 358         os_free(global.drv_priv);
 359         global.drv_priv = NULL;
 360
 361 #ifdef EAP_SERVER_TNC
 362         tncs_global_deinit();
 363 #endif /* EAP_SERVER_TNC */
 364
 365         random_deinit();
 366
 367         eloop_destroy();
 368
 369 #ifndef CONFIG_NATIVE_WINDOWS
 370         closelog();
 371 #endif /* CONFIG_NATIVE_WINDOWS */
 372
 373         eap_server_unregister_methods();
 374
 375         os_daemonize_terminate(pid_file);
 376 }
 377
 378
 379 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 380                               const char *pid_file)
 381 {
 382 #ifdef EAP_SERVER_TNC
 383         int tnc = 0;
 384         size_t i, k;
 385
 386         for (i = 0; !tnc && i < ifaces->count; i++) {
 387                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 388                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 389                                 tnc++;
 390                                 break;
 391                         }
 392                 }
 393         }
 394
 395         if (tnc && tncs_global_init() < 0) {
 396                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 397                 return -1;
 398         }
 399 #endif /* EAP_SERVER_TNC */
 400
 401         if (daemonize && os_daemonize(pid_file)) {
 402                 perror("daemon");
 403                 return -1;
 404         }
 405
 406         eloop_run();
 407
 408         return 0;
 409 }
 410
 411
 412 static void show_version(void)
 413 {
 414         fprintf(stderr,
 415                 "hostapd v" VERSION_STR "\n"
 416                 "User space daemon for IEEE 802.11 AP management,\n"
 417                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 418                 "Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi> "
 419                 "and contributors\n");
 420 }
 421
 422
 423 static void usage(void)
 424 {
 425         show_version();
 426         fprintf(stderr,
 427                 "\n"
 428                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 429                 "\\\n"
 430                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 431                 "         <configuration file(s)>\n"
 432                 "\n"
 433                 "options:\n"
 434                 "   -h   show this usage\n"
 435                 "   -d   show more debug messages (-dd for even more)\n"
 436                 "   -B   run daemon in the background\n"
 437                 "   -e   entropy file\n"
 438                 "   -g   global control interface path\n"
 439                 "   -G   group for control interfaces\n"
 440                 "   -P   PID file\n"
 441                 "   -K   include key data in debug messages\n"
 442 #ifdef CONFIG_DEBUG_FILE
 443                 "   -f   log output to debug file instead of stdout\n"
 444 #endif /* CONFIG_DEBUG_FILE */
 445 #ifdef CONFIG_DEBUG_LINUX_TRACING
 446                 "   -T = record to Linux tracing in addition to logging\n"
 447                 "        (records all messages regardless of debug verbosity)\n"
 448 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 449                 "   -t   include timestamps in some debug messages\n"
 450                 "   -v   show hostapd version\n");
 451
 452         exit(1);
 453 }
 454
 455
 456 static const char * hostapd_msg_ifname_cb(void *ctx)
 457 {
 458         struct hostapd_data *hapd = ctx;
 459         if (hapd && hapd->iconf && hapd->iconf->bss &&
 460             hapd->iconf->num_bss > 0 && hapd->iconf->bss[0])
 461                 return hapd->iconf->bss[0]->iface;
 462         return NULL;
 463 }
 464
 465
 466 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 467                                          const char *path)
 468 {
 469         char *pos;
 470         os_free(interfaces->global_iface_path);
 471         interfaces->global_iface_path = os_strdup(path);
 472         if (interfaces->global_iface_path == NULL)
 473                 return -1;
 474         pos = os_strrchr(interfaces->global_iface_path, '/');
 475         if (pos == NULL) {
 476                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 477                            "file");
 478                 os_free(interfaces->global_iface_path);
 479                 interfaces->global_iface_path = NULL;
 480                 return -1;
 481         }
 482
 483         *pos = '\0';
 484         interfaces->global_iface_name = pos + 1;
 485
 486         return 0;
 487 }
 488
 489
 490 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 491                                         const char *group)
 492 {
 493 #ifndef CONFIG_NATIVE_WINDOWS
 494         struct group *grp;
 495         grp = getgrnam(group);
 496         if (grp == NULL) {
 497                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 498                 return -1;
 499         }
 500         interfaces->ctrl_iface_group = grp->gr_gid;
 501 #endif /* CONFIG_NATIVE_WINDOWS */
 502         return 0;
 503 }
 504
 505
 506 #ifdef CONFIG_WPS
 507 static int gen_uuid(const char *txt_addr)
 508 {
 509         u8 addr[ETH_ALEN];
 510         u8 uuid[UUID_LEN];
 511         char buf[100];
 512
 513         if (hwaddr_aton(txt_addr, addr) < 0)
 514                 return -1;
 515
 516         uuid_gen_mac_addr(addr, uuid);
 517         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 518                 return -1;
 519
 520         printf("%s\n", buf);
 521
 522         return 0;
 523 }
 524 #endif /* CONFIG_WPS */
 525
 526
 527 int main(int argc, char *argv[])
 528 {
 529         struct hapd_interfaces interfaces;
 530         int ret = 1;
 531         size_t i, j;
 532         int c, debug = 0, daemonize = 0;
 533         char *pid_file = NULL;
 534         const char *log_file = NULL;
 535         const char *entropy_file = NULL;
 536         char **bss_config = NULL, **tmp_bss;
 537         size_t num_bss_configs = 0;
 538 #ifdef CONFIG_DEBUG_LINUX_TRACING
 539         int enable_trace_dbg = 0;
 540 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 541
 542         if (os_program_init())
 543                 return -1;
 544
 545         os_memset(&interfaces, 0, sizeof(interfaces));
 546         interfaces.reload_config = hostapd_reload_config;
 547         interfaces.config_read_cb = hostapd_config_read;
 548         interfaces.for_each_interface = hostapd_for_each_interface;
 549         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 550         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 551         interfaces.driver_init = hostapd_driver_init;
 552         interfaces.global_iface_path = NULL;
 553         interfaces.global_iface_name = NULL;
 554         interfaces.global_ctrl_sock = -1;
 555
 556         for (;;) {
 557                 c = getopt(argc, argv, "b:Bde:f:hKP:Ttu:vg:G:");
 558                 if (c < 0)
 559                         break;
 560                 switch (c) {
 561                 case 'h':
 562                         usage();
 563                         break;
 564                 case 'd':
 565                         debug++;
 566                         if (wpa_debug_level > 0)
 567                                 wpa_debug_level--;
 568                         break;
 569                 case 'B':
 570                         daemonize++;
 571                         break;
 572                 case 'e':
 573                         entropy_file = optarg;
 574                         break;
 575                 case 'f':
 576                         log_file = optarg;
 577                         break;
 578                 case 'K':
 579                         wpa_debug_show_keys++;
 580                         break;
 581                 case 'P':
 582                         os_free(pid_file);
 583                         pid_file = os_rel2abs_path(optarg);
 584                         break;
 585                 case 't':
 586                         wpa_debug_timestamp++;
 587                         break;
 588 #ifdef CONFIG_DEBUG_LINUX_TRACING
 589                 case 'T':
 590                         enable_trace_dbg = 1;
 591                         break;
 592 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 593                 case 'v':
 594                         show_version();
 595                         exit(1);
 596                         break;
 597                 case 'g':
 598                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 599                                 return -1;
 600                         break;
 601                 case 'G':
 602                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 603                                 return -1;
 604                         break;
 605                 case 'b':
 606                         tmp_bss = os_realloc_array(bss_config,
 607                                                    num_bss_configs + 1,
 608                                                    sizeof(char *));
 609                         if (tmp_bss == NULL)
 610                                 goto out;
 611                         bss_config = tmp_bss;
 612                         bss_config[num_bss_configs++] = optarg;
 613                         break;
 614 #ifdef CONFIG_WPS
 615                 case 'u':
 616                         return gen_uuid(optarg);
 617 #endif /* CONFIG_WPS */
 618                 default:
 619                         usage();
 620                         break;
 621                 }
 622         }
 623
 624         if (optind == argc && interfaces.global_iface_path == NULL &&
 625             num_bss_configs == 0)
 626                 usage();
 627
 628         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 629
 630         if (log_file)
 631                 wpa_debug_open_file(log_file);
 632 #ifdef CONFIG_DEBUG_LINUX_TRACING
 633         if (enable_trace_dbg) {
 634                 int tret = wpa_debug_open_linux_tracing();
 635                 if (tret) {
 636                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 637                         return -1;
 638                 }
 639         }
 640 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 641
 642         interfaces.count = argc - optind;
 643         if (interfaces.count || num_bss_configs) {
 644                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 645                                              sizeof(struct hostapd_iface *));
 646                 if (interfaces.iface == NULL) {
 647                         wpa_printf(MSG_ERROR, "malloc failed");
 648                         return -1;
 649                 }
 650         }
 651
 652         if (hostapd_global_init(&interfaces, entropy_file)) {
 653                 wpa_printf(MSG_ERROR, "Failed to initilize global context");
 654                 return -1;
 655         }
 656
 657         /* Allocate and parse configuration for full interface files */
 658         for (i = 0; i < interfaces.count; i++) {
 659                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 660                                                              argv[optind + i],
 661                                                              debug);
 662                 if (!interfaces.iface[i]) {
 663                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 664                         goto out;
 665                 }
 666         }
 667
 668         /* Allocate and parse configuration for per-BSS files */
 669         for (i = 0; i < num_bss_configs; i++) {
 670                 struct hostapd_iface *iface;
 671                 char *fname;
 672
 673                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 674                 fname = os_strchr(bss_config[i], ':');
 675                 if (fname == NULL) {
 676                         wpa_printf(MSG_ERROR,
 677                                    "Invalid BSS config identifier '%s'",
 678                                    bss_config[i]);
 679                         goto out;
 680                 }
 681                 *fname++ = '\0';
 682                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 683                                                    fname, debug);
 684                 if (iface == NULL)
 685                         goto out;
 686                 for (j = 0; j < interfaces.count; j++) {
 687                         if (interfaces.iface[j] == iface)
 688                                 break;
 689                 }
 690                 if (j == interfaces.count) {
 691                         struct hostapd_iface **tmp;
 692                         tmp = os_realloc_array(interfaces.iface,
 693                                                interfaces.count + 1,
 694                                                sizeof(struct hostapd_iface *));
 695                         if (tmp == NULL) {
 696                                 hostapd_interface_deinit_free(iface);
 697                                 goto out;
 698                         }
 699                         interfaces.iface = tmp;
 700                         interfaces.iface[interfaces.count++] = iface;
 701                 }
 702         }
 703
 704         /*
 705          * Enable configured interfaces. Depending on channel configuration,
 706          * this may complete full initialization before returning or use a
 707          * callback mechanism to complete setup in case of operations like HT
 708          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 709          * In such case, the interface will be enabled from eloop context within
 710          * hostapd_global_run().
 711          */
 712         interfaces.terminate_on_error = interfaces.count;
 713         for (i = 0; i < interfaces.count; i++) {
 714                 if (hostapd_driver_init(interfaces.iface[i]) ||
 715                     hostapd_setup_interface(interfaces.iface[i]))
 716                         goto out;
 717         }
 718
 719         hostapd_global_ctrl_iface_init(&interfaces);
 720
 721         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 722                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 723                 goto out;
 724         }
 725
 726         ret = 0;
 727
 728  out:
 729         hostapd_global_ctrl_iface_deinit(&interfaces);
 730         /* Deinitialize all interfaces */
 731         for (i = 0; i < interfaces.count; i++) {
 732                 if (!interfaces.iface[i])
 733                         continue;
 734                 interfaces.iface[i]->driver_ap_teardown =
 735                         !!(interfaces.iface[i]->drv_flags &
 736                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 737                 hostapd_interface_deinit_free(interfaces.iface[i]);
 738         }
 739         os_free(interfaces.iface);
 740
 741         hostapd_global_deinit(pid_file);
 742         os_free(pid_file);
 743
 744         if (log_file)
 745                 wpa_debug_close_file();
 746         wpa_debug_close_linux_tracing();
 747
 748         os_free(bss_config);
 749
 750         os_program_deinit();
 751
 752         return ret;
 753 }