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.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 188
 189         params.num_bridge = hapd->iface->num_bss;
 190         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 191         if (params.bridge == NULL)
 192                 return -1;
 193         for (i = 0; i < hapd->iface->num_bss; i++) {
 194                 struct hostapd_data *bss = hapd->iface->bss[i];
 195                 if (bss->conf->bridge[0])
 196                         params.bridge[i] = bss->conf->bridge;
 197         }
 198
 199         params.own_addr = hapd->own_addr;
 200
 201         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 202         os_free(params.bridge);
 203         if (hapd->drv_priv == NULL) {
 204                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 205                            hapd->driver->name);
 206                 hapd->driver = NULL;
 207                 return -1;
 208         }
 209
 210         if (hapd->driver->get_capa &&
 211             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 212                 struct wowlan_triggers *triggs;
 213
 214                 iface->drv_flags = capa.flags;
 215                 iface->smps_modes = capa.smps_modes;
 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                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 223                 if (triggs && hapd->driver->set_wowlan) {
 224                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 225                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 226                 }
 227                 os_free(triggs);
 228         }
 229
 230         return 0;
 231 }
 232
 233
 234 /**
 235  * hostapd_interface_init - Read configuration file and init BSS data
 236  *
 237  * This function is used to parse configuration file for a full interface (one
 238  * or more BSSes sharing the same radio) and allocate memory for the BSS
 239  * interfaces. No actiual driver operations are started.
 240  */
 241 static struct hostapd_iface *
 242 hostapd_interface_init(struct hapd_interfaces *interfaces,
 243                        const char *config_fname, int debug)
 244 {
 245         struct hostapd_iface *iface;
 246         int k;
 247
 248         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 249         iface = hostapd_init(interfaces, config_fname);
 250         if (!iface)
 251                 return NULL;
 252         iface->interfaces = interfaces;
 253
 254         for (k = 0; k < debug; k++) {
 255                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 256                         iface->bss[0]->conf->logger_stdout_level--;
 257         }
 258
 259         if (iface->conf->bss[0]->iface[0] == '\0' &&
 260             !hostapd_drv_none(iface->bss[0])) {
 261                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 262                            config_fname);
 263                 hostapd_interface_deinit_free(iface);
 264                 return NULL;
 265         }
 266
 267         return iface;
 268 }
 269
 270
 271 /**
 272  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 273  */
 274 static void handle_term(int sig, void *signal_ctx)
 275 {
 276         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 277         eloop_terminate();
 278 }
 279
 280
 281 #ifndef CONFIG_NATIVE_WINDOWS
 282
 283 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 284 {
 285         if (hostapd_reload_config(iface) < 0) {
 286                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 287                            "file - continuing with old.");
 288         }
 289         return 0;
 290 }
 291
 292
 293 /**
 294  * handle_reload - SIGHUP handler to reload configuration
 295  */
 296 static void handle_reload(int sig, void *signal_ctx)
 297 {
 298         struct hapd_interfaces *interfaces = signal_ctx;
 299         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 300                    sig);
 301         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 302 }
 303
 304
 305 static void handle_dump_state(int sig, void *signal_ctx)
 306 {
 307         /* Not used anymore - ignore signal */
 308 }
 309 #endif /* CONFIG_NATIVE_WINDOWS */
 310
 311
 312 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 313                                const char *entropy_file)
 314 {
 315         int i;
 316
 317         os_memset(&global, 0, sizeof(global));
 318
 319         hostapd_logger_register_cb(hostapd_logger_cb);
 320
 321         if (eap_server_register_methods()) {
 322                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 323                 return -1;
 324         }
 325
 326         if (eloop_init()) {
 327                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 328                 return -1;
 329         }
 330
 331         random_init(entropy_file);
 332
 333 #ifndef CONFIG_NATIVE_WINDOWS
 334         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 335         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 336 #endif /* CONFIG_NATIVE_WINDOWS */
 337         eloop_register_signal_terminate(handle_term, interfaces);
 338
 339 #ifndef CONFIG_NATIVE_WINDOWS
 340         openlog("hostapd", 0, LOG_DAEMON);
 341 #endif /* CONFIG_NATIVE_WINDOWS */
 342
 343         for (i = 0; wpa_drivers[i]; i++)
 344                 global.drv_count++;
 345         if (global.drv_count == 0) {
 346                 wpa_printf(MSG_ERROR, "No drivers enabled");
 347                 return -1;
 348         }
 349         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 350         if (global.drv_priv == NULL)
 351                 return -1;
 352
 353         return 0;
 354 }
 355
 356
 357 static void hostapd_global_deinit(const char *pid_file)
 358 {
 359         int i;
 360
 361         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 362                 if (!global.drv_priv[i])
 363                         continue;
 364                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 365         }
 366         os_free(global.drv_priv);
 367         global.drv_priv = NULL;
 368
 369 #ifdef EAP_SERVER_TNC
 370         tncs_global_deinit();
 371 #endif /* EAP_SERVER_TNC */
 372
 373         random_deinit();
 374
 375         eloop_destroy();
 376
 377 #ifndef CONFIG_NATIVE_WINDOWS
 378         closelog();
 379 #endif /* CONFIG_NATIVE_WINDOWS */
 380
 381         eap_server_unregister_methods();
 382
 383         os_daemonize_terminate(pid_file);
 384 }
 385
 386
 387 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 388                               const char *pid_file)
 389 {
 390 #ifdef EAP_SERVER_TNC
 391         int tnc = 0;
 392         size_t i, k;
 393
 394         for (i = 0; !tnc && i < ifaces->count; i++) {
 395                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 396                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 397                                 tnc++;
 398                                 break;
 399                         }
 400                 }
 401         }
 402
 403         if (tnc && tncs_global_init() < 0) {
 404                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 405                 return -1;
 406         }
 407 #endif /* EAP_SERVER_TNC */
 408
 409         if (daemonize && os_daemonize(pid_file)) {
 410                 perror("daemon");
 411                 return -1;
 412         }
 413
 414         eloop_run();
 415
 416         return 0;
 417 }
 418
 419
 420 static void show_version(void)
 421 {
 422         fprintf(stderr,
 423                 "hostapd v" VERSION_STR "\n"
 424                 "User space daemon for IEEE 802.11 AP management,\n"
 425                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 426                 "Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi> "
 427                 "and contributors\n");
 428 }
 429
 430
 431 static void usage(void)
 432 {
 433         show_version();
 434         fprintf(stderr,
 435                 "\n"
 436                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 437                 "\\\n"
 438                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 439                 "         <configuration file(s)>\n"
 440                 "\n"
 441                 "options:\n"
 442                 "   -h   show this usage\n"
 443                 "   -d   show more debug messages (-dd for even more)\n"
 444                 "   -B   run daemon in the background\n"
 445                 "   -e   entropy file\n"
 446                 "   -g   global control interface path\n"
 447                 "   -G   group for control interfaces\n"
 448                 "   -P   PID file\n"
 449                 "   -K   include key data in debug messages\n"
 450 #ifdef CONFIG_DEBUG_FILE
 451                 "   -f   log output to debug file instead of stdout\n"
 452 #endif /* CONFIG_DEBUG_FILE */
 453 #ifdef CONFIG_DEBUG_LINUX_TRACING
 454                 "   -T = record to Linux tracing in addition to logging\n"
 455                 "        (records all messages regardless of debug verbosity)\n"
 456 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 457                 "   -t   include timestamps in some debug messages\n"
 458                 "   -v   show hostapd version\n");
 459
 460         exit(1);
 461 }
 462
 463
 464 static const char * hostapd_msg_ifname_cb(void *ctx)
 465 {
 466         struct hostapd_data *hapd = ctx;
 467         if (hapd && hapd->iconf && hapd->iconf->bss &&
 468             hapd->iconf->num_bss > 0 && hapd->iconf->bss[0])
 469                 return hapd->iconf->bss[0]->iface;
 470         return NULL;
 471 }
 472
 473
 474 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 475                                          const char *path)
 476 {
 477         char *pos;
 478         os_free(interfaces->global_iface_path);
 479         interfaces->global_iface_path = os_strdup(path);
 480         if (interfaces->global_iface_path == NULL)
 481                 return -1;
 482         pos = os_strrchr(interfaces->global_iface_path, '/');
 483         if (pos == NULL) {
 484                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 485                            "file");
 486                 os_free(interfaces->global_iface_path);
 487                 interfaces->global_iface_path = NULL;
 488                 return -1;
 489         }
 490
 491         *pos = '\0';
 492         interfaces->global_iface_name = pos + 1;
 493
 494         return 0;
 495 }
 496
 497
 498 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 499                                         const char *group)
 500 {
 501 #ifndef CONFIG_NATIVE_WINDOWS
 502         struct group *grp;
 503         grp = getgrnam(group);
 504         if (grp == NULL) {
 505                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 506                 return -1;
 507         }
 508         interfaces->ctrl_iface_group = grp->gr_gid;
 509 #endif /* CONFIG_NATIVE_WINDOWS */
 510         return 0;
 511 }
 512
 513
 514 #ifdef CONFIG_WPS
 515 static int gen_uuid(const char *txt_addr)
 516 {
 517         u8 addr[ETH_ALEN];
 518         u8 uuid[UUID_LEN];
 519         char buf[100];
 520
 521         if (hwaddr_aton(txt_addr, addr) < 0)
 522                 return -1;
 523
 524         uuid_gen_mac_addr(addr, uuid);
 525         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 526                 return -1;
 527
 528         printf("%s\n", buf);
 529
 530         return 0;
 531 }
 532 #endif /* CONFIG_WPS */
 533
 534
 535 int main(int argc, char *argv[])
 536 {
 537         struct hapd_interfaces interfaces;
 538         int ret = 1;
 539         size_t i, j;
 540         int c, debug = 0, daemonize = 0;
 541         char *pid_file = NULL;
 542         const char *log_file = NULL;
 543         const char *entropy_file = NULL;
 544         char **bss_config = NULL, **tmp_bss;
 545         size_t num_bss_configs = 0;
 546 #ifdef CONFIG_DEBUG_LINUX_TRACING
 547         int enable_trace_dbg = 0;
 548 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 549
 550         if (os_program_init())
 551                 return -1;
 552
 553         os_memset(&interfaces, 0, sizeof(interfaces));
 554         interfaces.reload_config = hostapd_reload_config;
 555         interfaces.config_read_cb = hostapd_config_read;
 556         interfaces.for_each_interface = hostapd_for_each_interface;
 557         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 558         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 559         interfaces.driver_init = hostapd_driver_init;
 560         interfaces.global_iface_path = NULL;
 561         interfaces.global_iface_name = NULL;
 562         interfaces.global_ctrl_sock = -1;
 563
 564         for (;;) {
 565                 c = getopt(argc, argv, "b:Bde:f:hKP:Ttu:vg:G:");
 566                 if (c < 0)
 567                         break;
 568                 switch (c) {
 569                 case 'h':
 570                         usage();
 571                         break;
 572                 case 'd':
 573                         debug++;
 574                         if (wpa_debug_level > 0)
 575                                 wpa_debug_level--;
 576                         break;
 577                 case 'B':
 578                         daemonize++;
 579                         break;
 580                 case 'e':
 581                         entropy_file = optarg;
 582                         break;
 583                 case 'f':
 584                         log_file = optarg;
 585                         break;
 586                 case 'K':
 587                         wpa_debug_show_keys++;
 588                         break;
 589                 case 'P':
 590                         os_free(pid_file);
 591                         pid_file = os_rel2abs_path(optarg);
 592                         break;
 593                 case 't':
 594                         wpa_debug_timestamp++;
 595                         break;
 596 #ifdef CONFIG_DEBUG_LINUX_TRACING
 597                 case 'T':
 598                         enable_trace_dbg = 1;
 599                         break;
 600 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 601                 case 'v':
 602                         show_version();
 603                         exit(1);
 604                         break;
 605                 case 'g':
 606                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 607                                 return -1;
 608                         break;
 609                 case 'G':
 610                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 611                                 return -1;
 612                         break;
 613                 case 'b':
 614                         tmp_bss = os_realloc_array(bss_config,
 615                                                    num_bss_configs + 1,
 616                                                    sizeof(char *));
 617                         if (tmp_bss == NULL)
 618                                 goto out;
 619                         bss_config = tmp_bss;
 620                         bss_config[num_bss_configs++] = optarg;
 621                         break;
 622 #ifdef CONFIG_WPS
 623                 case 'u':
 624                         return gen_uuid(optarg);
 625 #endif /* CONFIG_WPS */
 626                 default:
 627                         usage();
 628                         break;
 629                 }
 630         }
 631
 632         if (optind == argc && interfaces.global_iface_path == NULL &&
 633             num_bss_configs == 0)
 634                 usage();
 635
 636         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 637
 638         if (log_file)
 639                 wpa_debug_open_file(log_file);
 640 #ifdef CONFIG_DEBUG_LINUX_TRACING
 641         if (enable_trace_dbg) {
 642                 int tret = wpa_debug_open_linux_tracing();
 643                 if (tret) {
 644                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 645                         return -1;
 646                 }
 647         }
 648 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 649
 650         interfaces.count = argc - optind;
 651         if (interfaces.count || num_bss_configs) {
 652                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 653                                              sizeof(struct hostapd_iface *));
 654                 if (interfaces.iface == NULL) {
 655                         wpa_printf(MSG_ERROR, "malloc failed");
 656                         return -1;
 657                 }
 658         }
 659
 660         if (hostapd_global_init(&interfaces, entropy_file)) {
 661                 wpa_printf(MSG_ERROR, "Failed to initilize global context");
 662                 return -1;
 663         }
 664
 665         /* Allocate and parse configuration for full interface files */
 666         for (i = 0; i < interfaces.count; i++) {
 667                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 668                                                              argv[optind + i],
 669                                                              debug);
 670                 if (!interfaces.iface[i]) {
 671                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 672                         goto out;
 673                 }
 674         }
 675
 676         /* Allocate and parse configuration for per-BSS files */
 677         for (i = 0; i < num_bss_configs; i++) {
 678                 struct hostapd_iface *iface;
 679                 char *fname;
 680
 681                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 682                 fname = os_strchr(bss_config[i], ':');
 683                 if (fname == NULL) {
 684                         wpa_printf(MSG_ERROR,
 685                                    "Invalid BSS config identifier '%s'",
 686                                    bss_config[i]);
 687                         goto out;
 688                 }
 689                 *fname++ = '\0';
 690                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 691                                                    fname, debug);
 692                 if (iface == NULL)
 693                         goto out;
 694                 for (j = 0; j < interfaces.count; j++) {
 695                         if (interfaces.iface[j] == iface)
 696                                 break;
 697                 }
 698                 if (j == interfaces.count) {
 699                         struct hostapd_iface **tmp;
 700                         tmp = os_realloc_array(interfaces.iface,
 701                                                interfaces.count + 1,
 702                                                sizeof(struct hostapd_iface *));
 703                         if (tmp == NULL) {
 704                                 hostapd_interface_deinit_free(iface);
 705                                 goto out;
 706                         }
 707                         interfaces.iface = tmp;
 708                         interfaces.iface[interfaces.count++] = iface;
 709                 }
 710         }
 711
 712         /*
 713          * Enable configured interfaces. Depending on channel configuration,
 714          * this may complete full initialization before returning or use a
 715          * callback mechanism to complete setup in case of operations like HT
 716          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 717          * In such case, the interface will be enabled from eloop context within
 718          * hostapd_global_run().
 719          */
 720         interfaces.terminate_on_error = interfaces.count;
 721         for (i = 0; i < interfaces.count; i++) {
 722                 if (hostapd_driver_init(interfaces.iface[i]) ||
 723                     hostapd_setup_interface(interfaces.iface[i]))
 724                         goto out;
 725         }
 726
 727         hostapd_global_ctrl_iface_init(&interfaces);
 728
 729         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 730                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 731                 goto out;
 732         }
 733
 734         ret = 0;
 735
 736  out:
 737         hostapd_global_ctrl_iface_deinit(&interfaces);
 738         /* Deinitialize all interfaces */
 739         for (i = 0; i < interfaces.count; i++) {
 740                 if (!interfaces.iface[i])
 741                         continue;
 742                 interfaces.iface[i]->driver_ap_teardown =
 743                         !!(interfaces.iface[i]->drv_flags &
 744                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 745                 hostapd_interface_deinit_free(interfaces.iface[i]);
 746         }
 747         os_free(interfaces.iface);
 748
 749         hostapd_global_deinit(pid_file);
 750         os_free(pid_file);
 751
 752         if (log_file)
 753                 wpa_debug_close_file();
 754         wpa_debug_close_linux_tracing();
 755
 756         os_free(bss_config);
 757
 758         os_program_deinit();
 759
 760         return ret;
 761 }