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 ? 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.ssid = hapd->conf->ssid.ssid;
 188         params.ssid_len = hapd->conf->ssid.ssid_len;
 189         params.test_socket = hapd->conf->test_socket;
 190         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 191
 192         params.num_bridge = hapd->iface->num_bss;
 193         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 194         if (params.bridge == NULL)
 195                 return -1;
 196         for (i = 0; i < hapd->iface->num_bss; i++) {
 197                 struct hostapd_data *bss = hapd->iface->bss[i];
 198                 if (bss->conf->bridge[0])
 199                         params.bridge[i] = bss->conf->bridge;
 200         }
 201
 202         params.own_addr = hapd->own_addr;
 203
 204         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 205         os_free(params.bridge);
 206         if (hapd->drv_priv == NULL) {
 207                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 208                            hapd->driver->name);
 209                 hapd->driver = NULL;
 210                 return -1;
 211         }
 212
 213         if (hapd->driver->get_capa &&
 214             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 215                 iface->drv_flags = capa.flags;
 216                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 217                 iface->extended_capa = capa.extended_capa;
 218                 iface->extended_capa_mask = capa.extended_capa_mask;
 219                 iface->extended_capa_len = capa.extended_capa_len;
 220                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 221         }
 222
 223         return 0;
 224 }
 225
 226
 227 /**
 228  * hostapd_interface_init - Read configuration file and init BSS data
 229  *
 230  * This function is used to parse configuration file for a full interface (one
 231  * or more BSSes sharing the same radio) and allocate memory for the BSS
 232  * interfaces. No actiual driver operations are started.
 233  */
 234 static struct hostapd_iface *
 235 hostapd_interface_init(struct hapd_interfaces *interfaces,
 236                        const char *config_fname, int debug)
 237 {
 238         struct hostapd_iface *iface;
 239         int k;
 240
 241         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 242         iface = hostapd_init(interfaces, config_fname);
 243         if (!iface)
 244                 return NULL;
 245         iface->interfaces = interfaces;
 246
 247         for (k = 0; k < debug; k++) {
 248                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 249                         iface->bss[0]->conf->logger_stdout_level--;
 250         }
 251
 252         if (iface->conf->bss[0]->iface[0] == '\0' &&
 253             !hostapd_drv_none(iface->bss[0])) {
 254                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 255                            config_fname);
 256                 hostapd_interface_deinit_free(iface);
 257                 return NULL;
 258         }
 259
 260         return iface;
 261 }
 262
 263
 264 /**
 265  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 266  */
 267 static void handle_term(int sig, void *signal_ctx)
 268 {
 269         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 270         eloop_terminate();
 271 }
 272
 273
 274 #ifndef CONFIG_NATIVE_WINDOWS
 275
 276 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 277 {
 278         if (hostapd_reload_config(iface) < 0) {
 279                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 280                            "file - continuing with old.");
 281         }
 282         return 0;
 283 }
 284
 285
 286 /**
 287  * handle_reload - SIGHUP handler to reload configuration
 288  */
 289 static void handle_reload(int sig, void *signal_ctx)
 290 {
 291         struct hapd_interfaces *interfaces = signal_ctx;
 292         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 293                    sig);
 294         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 295 }
 296
 297
 298 static void handle_dump_state(int sig, void *signal_ctx)
 299 {
 300         /* Not used anymore - ignore signal */
 301 }
 302 #endif /* CONFIG_NATIVE_WINDOWS */
 303
 304
 305 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 306                                const char *entropy_file)
 307 {
 308         int i;
 309
 310         os_memset(&global, 0, sizeof(global));
 311
 312         hostapd_logger_register_cb(hostapd_logger_cb);
 313
 314         if (eap_server_register_methods()) {
 315                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 316                 return -1;
 317         }
 318
 319         if (eloop_init()) {
 320                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 321                 return -1;
 322         }
 323
 324         random_init(entropy_file);
 325
 326 #ifndef CONFIG_NATIVE_WINDOWS
 327         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 328         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 329 #endif /* CONFIG_NATIVE_WINDOWS */
 330         eloop_register_signal_terminate(handle_term, interfaces);
 331
 332 #ifndef CONFIG_NATIVE_WINDOWS
 333         openlog("hostapd", 0, LOG_DAEMON);
 334 #endif /* CONFIG_NATIVE_WINDOWS */
 335
 336         for (i = 0; wpa_drivers[i]; i++)
 337                 global.drv_count++;
 338         if (global.drv_count == 0) {
 339                 wpa_printf(MSG_ERROR, "No drivers enabled");
 340                 return -1;
 341         }
 342         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 343         if (global.drv_priv == NULL)
 344                 return -1;
 345
 346         return 0;
 347 }
 348
 349
 350 static void hostapd_global_deinit(const char *pid_file)
 351 {
 352         int i;
 353
 354         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 355                 if (!global.drv_priv[i])
 356                         continue;
 357                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 358         }
 359         os_free(global.drv_priv);
 360         global.drv_priv = NULL;
 361
 362 #ifdef EAP_SERVER_TNC
 363         tncs_global_deinit();
 364 #endif /* EAP_SERVER_TNC */
 365
 366         random_deinit();
 367
 368         eloop_destroy();
 369
 370 #ifndef CONFIG_NATIVE_WINDOWS
 371         closelog();
 372 #endif /* CONFIG_NATIVE_WINDOWS */
 373
 374         eap_server_unregister_methods();
 375
 376         os_daemonize_terminate(pid_file);
 377 }
 378
 379
 380 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 381                               const char *pid_file)
 382 {
 383 #ifdef EAP_SERVER_TNC
 384         int tnc = 0;
 385         size_t i, k;
 386
 387         for (i = 0; !tnc && i < ifaces->count; i++) {
 388                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 389                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 390                                 tnc++;
 391                                 break;
 392                         }
 393                 }
 394         }
 395
 396         if (tnc && tncs_global_init() < 0) {
 397                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 398                 return -1;
 399         }
 400 #endif /* EAP_SERVER_TNC */
 401
 402         if (daemonize && os_daemonize(pid_file)) {
 403                 perror("daemon");
 404                 return -1;
 405         }
 406
 407         eloop_run();
 408
 409         return 0;
 410 }
 411
 412
 413 static void show_version(void)
 414 {
 415         fprintf(stderr,
 416                 "hostapd v" VERSION_STR "\n"
 417                 "User space daemon for IEEE 802.11 AP management,\n"
 418                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 419                 "Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi> "
 420                 "and contributors\n");
 421 }
 422
 423
 424 static void usage(void)
 425 {
 426         show_version();
 427         fprintf(stderr,
 428                 "\n"
 429                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 430                 "\\\n"
 431                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 432                 "         <configuration file(s)>\n"
 433                 "\n"
 434                 "options:\n"
 435                 "   -h   show this usage\n"
 436                 "   -d   show more debug messages (-dd for even more)\n"
 437                 "   -B   run daemon in the background\n"
 438                 "   -e   entropy file\n"
 439                 "   -g   global control interface path\n"
 440                 "   -G   group for control interfaces\n"
 441                 "   -P   PID file\n"
 442                 "   -K   include key data in debug messages\n"
 443 #ifdef CONFIG_DEBUG_FILE
 444                 "   -f   log output to debug file instead of stdout\n"
 445 #endif /* CONFIG_DEBUG_FILE */
 446 #ifdef CONFIG_DEBUG_LINUX_TRACING
 447                 "   -T = record to Linux tracing in addition to logging\n"
 448                 "        (records all messages regardless of debug verbosity)\n"
 449 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 450                 "   -t   include timestamps in some debug messages\n"
 451                 "   -v   show hostapd version\n");
 452
 453         exit(1);
 454 }
 455
 456
 457 static const char * hostapd_msg_ifname_cb(void *ctx)
 458 {
 459         struct hostapd_data *hapd = ctx;
 460         if (hapd && hapd->iconf && hapd->iconf->bss &&
 461             hapd->iconf->num_bss > 0 && hapd->iconf->bss[0])
 462                 return hapd->iconf->bss[0]->iface;
 463         return NULL;
 464 }
 465
 466
 467 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 468                                          const char *path)
 469 {
 470         char *pos;
 471         os_free(interfaces->global_iface_path);
 472         interfaces->global_iface_path = os_strdup(path);
 473         if (interfaces->global_iface_path == NULL)
 474                 return -1;
 475         pos = os_strrchr(interfaces->global_iface_path, '/');
 476         if (pos == NULL) {
 477                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 478                            "file");
 479                 os_free(interfaces->global_iface_path);
 480                 interfaces->global_iface_path = NULL;
 481                 return -1;
 482         }
 483
 484         *pos = '\0';
 485         interfaces->global_iface_name = pos + 1;
 486
 487         return 0;
 488 }
 489
 490
 491 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 492                                         const char *group)
 493 {
 494 #ifndef CONFIG_NATIVE_WINDOWS
 495         struct group *grp;
 496         grp = getgrnam(group);
 497         if (grp == NULL) {
 498                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 499                 return -1;
 500         }
 501         interfaces->ctrl_iface_group = grp->gr_gid;
 502 #endif /* CONFIG_NATIVE_WINDOWS */
 503         return 0;
 504 }
 505
 506
 507 #ifdef CONFIG_WPS
 508 static int gen_uuid(const char *txt_addr)
 509 {
 510         u8 addr[ETH_ALEN];
 511         u8 uuid[UUID_LEN];
 512         char buf[100];
 513
 514         if (hwaddr_aton(txt_addr, addr) < 0)
 515                 return -1;
 516
 517         uuid_gen_mac_addr(addr, uuid);
 518         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 519                 return -1;
 520
 521         printf("%s\n", buf);
 522
 523         return 0;
 524 }
 525 #endif /* CONFIG_WPS */
 526
 527
 528 int main(int argc, char *argv[])
 529 {
 530         struct hapd_interfaces interfaces;
 531         int ret = 1;
 532         size_t i, j;
 533         int c, debug = 0, daemonize = 0;
 534         char *pid_file = NULL;
 535         const char *log_file = NULL;
 536         const char *entropy_file = NULL;
 537         char **bss_config = NULL, **tmp_bss;
 538         size_t num_bss_configs = 0;
 539 #ifdef CONFIG_DEBUG_LINUX_TRACING
 540         int enable_trace_dbg = 0;
 541 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 542
 543         if (os_program_init())
 544                 return -1;
 545
 546         os_memset(&interfaces, 0, sizeof(interfaces));
 547         interfaces.reload_config = hostapd_reload_config;
 548         interfaces.config_read_cb = hostapd_config_read;
 549         interfaces.for_each_interface = hostapd_for_each_interface;
 550         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 551         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 552         interfaces.driver_init = hostapd_driver_init;
 553         interfaces.global_iface_path = NULL;
 554         interfaces.global_iface_name = NULL;
 555         interfaces.global_ctrl_sock = -1;
 556
 557         for (;;) {
 558                 c = getopt(argc, argv, "b:Bde:f:hKP:Ttu:vg:G:");
 559                 if (c < 0)
 560                         break;
 561                 switch (c) {
 562                 case 'h':
 563                         usage();
 564                         break;
 565                 case 'd':
 566                         debug++;
 567                         if (wpa_debug_level > 0)
 568                                 wpa_debug_level--;
 569                         break;
 570                 case 'B':
 571                         daemonize++;
 572                         break;
 573                 case 'e':
 574                         entropy_file = optarg;
 575                         break;
 576                 case 'f':
 577                         log_file = optarg;
 578                         break;
 579                 case 'K':
 580                         wpa_debug_show_keys++;
 581                         break;
 582                 case 'P':
 583                         os_free(pid_file);
 584                         pid_file = os_rel2abs_path(optarg);
 585                         break;
 586                 case 't':
 587                         wpa_debug_timestamp++;
 588                         break;
 589 #ifdef CONFIG_DEBUG_LINUX_TRACING
 590                 case 'T':
 591                         enable_trace_dbg = 1;
 592                         break;
 593 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 594                 case 'v':
 595                         show_version();
 596                         exit(1);
 597                         break;
 598                 case 'g':
 599                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 600                                 return -1;
 601                         break;
 602                 case 'G':
 603                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 604                                 return -1;
 605                         break;
 606                 case 'b':
 607                         tmp_bss = os_realloc_array(bss_config,
 608                                                    num_bss_configs + 1,
 609                                                    sizeof(char *));
 610                         if (tmp_bss == NULL)
 611                                 goto out;
 612                         bss_config = tmp_bss;
 613                         bss_config[num_bss_configs++] = optarg;
 614                         break;
 615 #ifdef CONFIG_WPS
 616                 case 'u':
 617                         return gen_uuid(optarg);
 618 #endif /* CONFIG_WPS */
 619                 default:
 620                         usage();
 621                         break;
 622                 }
 623         }
 624
 625         if (optind == argc && interfaces.global_iface_path == NULL &&
 626             num_bss_configs == 0)
 627                 usage();
 628
 629         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 630
 631         if (log_file)
 632                 wpa_debug_open_file(log_file);
 633 #ifdef CONFIG_DEBUG_LINUX_TRACING
 634         if (enable_trace_dbg) {
 635                 int tret = wpa_debug_open_linux_tracing();
 636                 if (tret) {
 637                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 638                         return -1;
 639                 }
 640         }
 641 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 642
 643         interfaces.count = argc - optind;
 644         if (interfaces.count || num_bss_configs) {
 645                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 646                                              sizeof(struct hostapd_iface *));
 647                 if (interfaces.iface == NULL) {
 648                         wpa_printf(MSG_ERROR, "malloc failed");
 649                         return -1;
 650                 }
 651         }
 652
 653         if (hostapd_global_init(&interfaces, entropy_file)) {
 654                 wpa_printf(MSG_ERROR, "Failed to initilize global context");
 655                 return -1;
 656         }
 657
 658         /* Allocate and parse configuration for full interface files */
 659         for (i = 0; i < interfaces.count; i++) {
 660                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 661                                                              argv[optind + i],
 662                                                              debug);
 663                 if (!interfaces.iface[i]) {
 664                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 665                         goto out;
 666                 }
 667         }
 668
 669         /* Allocate and parse configuration for per-BSS files */
 670         for (i = 0; i < num_bss_configs; i++) {
 671                 struct hostapd_iface *iface;
 672                 char *fname;
 673
 674                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 675                 fname = os_strchr(bss_config[i], ':');
 676                 if (fname == NULL) {
 677                         wpa_printf(MSG_ERROR,
 678                                    "Invalid BSS config identifier '%s'",
 679                                    bss_config[i]);
 680                         goto out;
 681                 }
 682                 *fname++ = '\0';
 683                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 684                                                    fname, debug);
 685                 if (iface == NULL)
 686                         goto out;
 687                 for (j = 0; j < interfaces.count; j++) {
 688                         if (interfaces.iface[j] == iface)
 689                                 break;
 690                 }
 691                 if (j == interfaces.count) {
 692                         struct hostapd_iface **tmp;
 693                         tmp = os_realloc_array(interfaces.iface,
 694                                                interfaces.count + 1,
 695                                                sizeof(struct hostapd_iface *));
 696                         if (tmp == NULL) {
 697                                 hostapd_interface_deinit_free(iface);
 698                                 goto out;
 699                         }
 700                         interfaces.iface = tmp;
 701                         interfaces.iface[interfaces.count++] = iface;
 702                 }
 703         }
 704
 705         /*
 706          * Enable configured interfaces. Depending on channel configuration,
 707          * this may complete full initialization before returning or use a
 708          * callback mechanism to complete setup in case of operations like HT
 709          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 710          * In such case, the interface will be enabled from eloop context within
 711          * hostapd_global_run().
 712          */
 713         interfaces.terminate_on_error = interfaces.count;
 714         for (i = 0; i < interfaces.count; i++) {
 715                 if (hostapd_driver_init(interfaces.iface[i]) ||
 716                     hostapd_setup_interface(interfaces.iface[i]))
 717                         goto out;
 718         }
 719
 720         hostapd_global_ctrl_iface_init(&interfaces);
 721
 722         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 723                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 724                 goto out;
 725         }
 726
 727         ret = 0;
 728
 729  out:
 730         hostapd_global_ctrl_iface_deinit(&interfaces);
 731         /* Deinitialize all interfaces */
 732         for (i = 0; i < interfaces.count; i++) {
 733                 if (!interfaces.iface[i])
 734                         continue;
 735                 interfaces.iface[i]->driver_ap_teardown =
 736                         !!(interfaces.iface[i]->drv_flags &
 737                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 738                 hostapd_interface_deinit_free(interfaces.iface[i]);
 739         }
 740         os_free(interfaces.iface);
 741
 742         hostapd_global_deinit(pid_file);
 743         os_free(pid_file);
 744
 745         if (log_file)
 746                 wpa_debug_close_file();
 747         wpa_debug_close_linux_tracing();
 748
 749         os_free(bss_config);
 750
 751         os_program_deinit();
 752
 753         return ret;
 754 }