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