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 "crypto/random.h"
  18 #include "crypto/tls.h"
  19 #include "common/version.h"
  20 #include "drivers/driver.h"
  21 #include "eap_server/eap.h"
  22 #include "eap_server/tncs.h"
  23 #include "ap/hostapd.h"
  24 #include "ap/ap_config.h"
  25 #include "ap/ap_drv_ops.h"
  26 #include "config_file.h"
  27 #include "eap_register.h"
  28 #include "dump_state.h"
  29 #include "ctrl_iface.h"
  30
  31
  32 extern int wpa_debug_level;
  33 extern int wpa_debug_show_keys;
  34 extern int wpa_debug_timestamp;
  35
  36 extern struct wpa_driver_ops *wpa_drivers[];
  37
  38
  39 struct hapd_global {
  40         void **drv_priv;
  41         size_t drv_count;
  42 };
  43
  44 static struct hapd_global global;
  45
  46
  47 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  48 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  49                               int level, const char *txt, size_t len)
  50 {
  51         struct hostapd_data *hapd = ctx;
  52         char *format, *module_str;
  53         int maxlen;
  54         int conf_syslog_level, conf_stdout_level;
  55         unsigned int conf_syslog, conf_stdout;
  56
  57         maxlen = len + 100;
  58         format = os_malloc(maxlen);
  59         if (!format)
  60                 return;
  61
  62         if (hapd && hapd->conf) {
  63                 conf_syslog_level = hapd->conf->logger_syslog_level;
  64                 conf_stdout_level = hapd->conf->logger_stdout_level;
  65                 conf_syslog = hapd->conf->logger_syslog;
  66                 conf_stdout = hapd->conf->logger_stdout;
  67         } else {
  68                 conf_syslog_level = conf_stdout_level = 0;
  69                 conf_syslog = conf_stdout = (unsigned int) -1;
  70         }
  71
  72         switch (module) {
  73         case HOSTAPD_MODULE_IEEE80211:
  74                 module_str = "IEEE 802.11";
  75                 break;
  76         case HOSTAPD_MODULE_IEEE8021X:
  77                 module_str = "IEEE 802.1X";
  78                 break;
  79         case HOSTAPD_MODULE_RADIUS:
  80                 module_str = "RADIUS";
  81                 break;
  82         case HOSTAPD_MODULE_WPA:
  83                 module_str = "WPA";
  84                 break;
  85         case HOSTAPD_MODULE_DRIVER:
  86                 module_str = "DRIVER";
  87                 break;
  88         case HOSTAPD_MODULE_IAPP:
  89                 module_str = "IAPP";
  90                 break;
  91         case HOSTAPD_MODULE_MLME:
  92                 module_str = "MLME";
  93                 break;
  94         default:
  95                 module_str = NULL;
  96                 break;
  97         }
  98
  99         if (hapd && hapd->conf && addr)
 100                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
 101                             hapd->conf->iface, MAC2STR(addr),
 102                             module_str ? " " : "", module_str, txt);
 103         else if (hapd && hapd->conf)
 104                 os_snprintf(format, maxlen, "%s:%s%s %s",
 105                             hapd->conf->iface, module_str ? " " : "",
 106                             module_str, txt);
 107         else if (addr)
 108                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 109                             MAC2STR(addr), module_str ? " " : "",
 110                             module_str, txt);
 111         else
 112                 os_snprintf(format, maxlen, "%s%s%s",
 113                             module_str, module_str ? ": " : "", txt);
 114
 115         if ((conf_stdout & module) && level >= conf_stdout_level) {
 116                 wpa_debug_print_timestamp();
 117                 printf("%s\n", format);
 118         }
 119
 120 #ifndef CONFIG_NATIVE_WINDOWS
 121         if ((conf_syslog & module) && level >= conf_syslog_level) {
 122                 int priority;
 123                 switch (level) {
 124                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 125                 case HOSTAPD_LEVEL_DEBUG:
 126                         priority = LOG_DEBUG;
 127                         break;
 128                 case HOSTAPD_LEVEL_INFO:
 129                         priority = LOG_INFO;
 130                         break;
 131                 case HOSTAPD_LEVEL_NOTICE:
 132                         priority = LOG_NOTICE;
 133                         break;
 134                 case HOSTAPD_LEVEL_WARNING:
 135                         priority = LOG_WARNING;
 136                         break;
 137                 default:
 138                         priority = LOG_INFO;
 139                         break;
 140                 }
 141                 syslog(priority, "%s", format);
 142         }
 143 #endif /* CONFIG_NATIVE_WINDOWS */
 144
 145         os_free(format);
 146 }
 147 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 148
 149
 150 /**
 151  * hostapd_init - Allocate and initialize per-interface data
 152  * @config_file: Path to the configuration file
 153  * Returns: Pointer to the allocated interface data or %NULL on failure
 154  *
 155  * This function is used to allocate main data structures for per-interface
 156  * data. The allocated data buffer will be freed by calling
 157  * hostapd_cleanup_iface().
 158  */
 159 static struct hostapd_iface * hostapd_init(const char *config_file)
 160 {
 161         struct hostapd_iface *hapd_iface = NULL;
 162         struct hostapd_config *conf = NULL;
 163         struct hostapd_data *hapd;
 164         size_t i;
 165
 166         hapd_iface = os_zalloc(sizeof(*hapd_iface));
 167         if (hapd_iface == NULL)
 168                 goto fail;
 169
 170         hapd_iface->config_fname = os_strdup(config_file);
 171         if (hapd_iface->config_fname == NULL)
 172                 goto fail;
 173
 174         conf = hostapd_config_read(hapd_iface->config_fname);
 175         if (conf == NULL)
 176                 goto fail;
 177         hapd_iface->conf = conf;
 178
 179         hapd_iface->num_bss = conf->num_bss;
 180         hapd_iface->bss = os_calloc(conf->num_bss,
 181                                     sizeof(struct hostapd_data *));
 182         if (hapd_iface->bss == NULL)
 183                 goto fail;
 184
 185         for (i = 0; i < conf->num_bss; i++) {
 186                 hapd = hapd_iface->bss[i] =
 187                         hostapd_alloc_bss_data(hapd_iface, conf,
 188                                                &conf->bss[i]);
 189                 if (hapd == NULL)
 190                         goto fail;
 191                 hapd->msg_ctx = hapd;
 192         }
 193
 194         return hapd_iface;
 195
 196 fail:
 197         wpa_printf(MSG_ERROR, "Failed to set up interface with %s",
 198                    config_file);
 199         if (conf)
 200                 hostapd_config_free(conf);
 201         if (hapd_iface) {
 202                 os_free(hapd_iface->config_fname);
 203                 os_free(hapd_iface->bss);
 204                 os_free(hapd_iface);
 205         }
 206         return NULL;
 207 }
 208
 209
 210 static int hostapd_driver_init(struct hostapd_iface *iface)
 211 {
 212         struct wpa_init_params params;
 213         size_t i;
 214         struct hostapd_data *hapd = iface->bss[0];
 215         struct hostapd_bss_config *conf = hapd->conf;
 216         u8 *b = conf->bssid;
 217         struct wpa_driver_capa capa;
 218
 219         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 220                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 221                 return -1;
 222         }
 223
 224         /* Initialize the driver interface */
 225         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 226                 b = NULL;
 227
 228         os_memset(&params, 0, sizeof(params));
 229         for (i = 0; wpa_drivers[i]; i++) {
 230                 if (wpa_drivers[i] != hapd->driver)
 231                         continue;
 232
 233                 if (global.drv_priv[i] == NULL &&
 234                     wpa_drivers[i]->global_init) {
 235                         global.drv_priv[i] = wpa_drivers[i]->global_init();
 236                         if (global.drv_priv[i] == NULL) {
 237                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 238                                            "driver '%s'",
 239                                            wpa_drivers[i]->name);
 240                                 return -1;
 241                         }
 242                 }
 243
 244                 params.global_priv = global.drv_priv[i];
 245                 break;
 246         }
 247         params.bssid = b;
 248         params.ifname = hapd->conf->iface;
 249         params.ssid = hapd->conf->ssid.ssid;
 250         params.ssid_len = hapd->conf->ssid.ssid_len;
 251         params.test_socket = hapd->conf->test_socket;
 252         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 253
 254         params.num_bridge = hapd->iface->num_bss;
 255         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 256         if (params.bridge == NULL)
 257                 return -1;
 258         for (i = 0; i < hapd->iface->num_bss; i++) {
 259                 struct hostapd_data *bss = hapd->iface->bss[i];
 260                 if (bss->conf->bridge[0])
 261                         params.bridge[i] = bss->conf->bridge;
 262         }
 263
 264         params.own_addr = hapd->own_addr;
 265
 266         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 267         os_free(params.bridge);
 268         if (hapd->drv_priv == NULL) {
 269                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 270                            hapd->driver->name);
 271                 hapd->driver = NULL;
 272                 return -1;
 273         }
 274
 275         if (hapd->driver->get_capa &&
 276             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 277                 iface->drv_flags = capa.flags;
 278                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 279                 iface->extended_capa = capa.extended_capa;
 280                 iface->extended_capa_mask = capa.extended_capa_mask;
 281                 iface->extended_capa_len = capa.extended_capa_len;
 282                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 283         }
 284
 285         return 0;
 286 }
 287
 288
 289 static struct hostapd_iface *
 290 hostapd_interface_init(struct hapd_interfaces *interfaces,
 291                        const char *config_fname, int debug)
 292 {
 293         struct hostapd_iface *iface;
 294         int k;
 295
 296         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 297         iface = hostapd_init(config_fname);
 298         if (!iface)
 299                 return NULL;
 300         iface->interfaces = interfaces;
 301
 302         for (k = 0; k < debug; k++) {
 303                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 304                         iface->bss[0]->conf->logger_stdout_level--;
 305         }
 306
 307         if (iface->conf->bss[0].iface[0] == '\0' &&
 308             !hostapd_drv_none(iface->bss[0])) {
 309                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 310                            config_fname);
 311                 hostapd_interface_deinit_free(iface);
 312                 return NULL;
 313         }
 314
 315         if (hostapd_driver_init(iface) ||
 316             hostapd_setup_interface(iface)) {
 317                 hostapd_interface_deinit_free(iface);
 318                 return NULL;
 319         }
 320
 321         return iface;
 322 }
 323
 324
 325 /**
 326  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 327  */
 328 static void handle_term(int sig, void *signal_ctx)
 329 {
 330         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 331         eloop_terminate();
 332 }
 333
 334
 335 #ifndef CONFIG_NATIVE_WINDOWS
 336
 337 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 338 {
 339         if (hostapd_reload_config(iface) < 0) {
 340                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 341                            "file - continuing with old.");
 342         }
 343         return 0;
 344 }
 345
 346
 347 /**
 348  * handle_reload - SIGHUP handler to reload configuration
 349  */
 350 static void handle_reload(int sig, void *signal_ctx)
 351 {
 352         struct hapd_interfaces *interfaces = signal_ctx;
 353         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 354                    sig);
 355         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 356 }
 357
 358
 359 static void handle_dump_state(int sig, void *signal_ctx)
 360 {
 361 #ifdef HOSTAPD_DUMP_STATE
 362         struct hapd_interfaces *interfaces = signal_ctx;
 363         hostapd_for_each_interface(interfaces, handle_dump_state_iface, NULL);
 364 #endif /* HOSTAPD_DUMP_STATE */
 365 }
 366 #endif /* CONFIG_NATIVE_WINDOWS */
 367
 368
 369 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 370                                const char *entropy_file)
 371 {
 372         int i;
 373
 374         os_memset(&global, 0, sizeof(global));
 375
 376         hostapd_logger_register_cb(hostapd_logger_cb);
 377
 378         if (eap_server_register_methods()) {
 379                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 380                 return -1;
 381         }
 382
 383         if (eloop_init()) {
 384                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 385                 return -1;
 386         }
 387
 388         random_init(entropy_file);
 389
 390 #ifndef CONFIG_NATIVE_WINDOWS
 391         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 392         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 393 #endif /* CONFIG_NATIVE_WINDOWS */
 394         eloop_register_signal_terminate(handle_term, interfaces);
 395
 396 #ifndef CONFIG_NATIVE_WINDOWS
 397         openlog("hostapd", 0, LOG_DAEMON);
 398 #endif /* CONFIG_NATIVE_WINDOWS */
 399
 400         for (i = 0; wpa_drivers[i]; i++)
 401                 global.drv_count++;
 402         if (global.drv_count == 0) {
 403                 wpa_printf(MSG_ERROR, "No drivers enabled");
 404                 return -1;
 405         }
 406         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 407         if (global.drv_priv == NULL)
 408                 return -1;
 409
 410         return 0;
 411 }
 412
 413
 414 static void hostapd_global_deinit(const char *pid_file)
 415 {
 416         int i;
 417
 418         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 419                 if (!global.drv_priv[i])
 420                         continue;
 421                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 422         }
 423         os_free(global.drv_priv);
 424         global.drv_priv = NULL;
 425
 426 #ifdef EAP_SERVER_TNC
 427         tncs_global_deinit();
 428 #endif /* EAP_SERVER_TNC */
 429
 430         random_deinit();
 431
 432         eloop_destroy();
 433
 434 #ifndef CONFIG_NATIVE_WINDOWS
 435         closelog();
 436 #endif /* CONFIG_NATIVE_WINDOWS */
 437
 438         eap_server_unregister_methods();
 439
 440         os_daemonize_terminate(pid_file);
 441 }
 442
 443
 444 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 445                               const char *pid_file)
 446 {
 447 #ifdef EAP_SERVER_TNC
 448         int tnc = 0;
 449         size_t i, k;
 450
 451         for (i = 0; !tnc && i < ifaces->count; i++) {
 452                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 453                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 454                                 tnc++;
 455                                 break;
 456                         }
 457                 }
 458         }
 459
 460         if (tnc && tncs_global_init() < 0) {
 461                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 462                 return -1;
 463         }
 464 #endif /* EAP_SERVER_TNC */
 465
 466         if (daemonize && os_daemonize(pid_file)) {
 467                 perror("daemon");
 468                 return -1;
 469         }
 470
 471         eloop_run();
 472
 473         return 0;
 474 }
 475
 476
 477 static void show_version(void)
 478 {
 479         fprintf(stderr,
 480                 "hostapd v" VERSION_STR "\n"
 481                 "User space daemon for IEEE 802.11 AP management,\n"
 482                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 483                 "Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi> "
 484                 "and contributors\n");
 485 }
 486
 487
 488 static void usage(void)
 489 {
 490         show_version();
 491         fprintf(stderr,
 492                 "\n"
 493                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 494                 "\\\n"
 495                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 496                 "         <configuration file(s)>\n"
 497                 "\n"
 498                 "options:\n"
 499                 "   -h   show this usage\n"
 500                 "   -d   show more debug messages (-dd for even more)\n"
 501                 "   -B   run daemon in the background\n"
 502                 "   -e   entropy file\n"
 503                 "   -g   global control interface path\n"
 504                 "   -G   group for control interfaces\n"
 505                 "   -P   PID file\n"
 506                 "   -K   include key data in debug messages\n"
 507 #ifdef CONFIG_DEBUG_FILE
 508                 "   -f   log output to debug file instead of stdout\n"
 509 #endif /* CONFIG_DEBUG_FILE */
 510                 "   -t   include timestamps in some debug messages\n"
 511                 "   -v   show hostapd version\n");
 512
 513         exit(1);
 514 }
 515
 516
 517 static const char * hostapd_msg_ifname_cb(void *ctx)
 518 {
 519         struct hostapd_data *hapd = ctx;
 520         if (hapd && hapd->iconf && hapd->iconf->bss)
 521                 return hapd->iconf->bss->iface;
 522         return NULL;
 523 }
 524
 525
 526 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 527                                          const char *path)
 528 {
 529         char *pos;
 530         os_free(interfaces->global_iface_path);
 531         interfaces->global_iface_path = os_strdup(path);
 532         if (interfaces->global_iface_path == NULL)
 533                 return -1;
 534         pos = os_strrchr(interfaces->global_iface_path, '/');
 535         if (pos == NULL) {
 536                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 537                            "file");
 538                 os_free(interfaces->global_iface_path);
 539                 interfaces->global_iface_path = NULL;
 540                 return -1;
 541         }
 542
 543         *pos = '\0';
 544         interfaces->global_iface_name = pos + 1;
 545
 546         return 0;
 547 }
 548
 549
 550 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 551                                         const char *group)
 552 {
 553 #ifndef CONFIG_NATIVE_WINDOWS
 554         struct group *grp;
 555         grp = getgrnam(group);
 556         if (grp == NULL) {
 557                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 558                 return -1;
 559         }
 560         interfaces->ctrl_iface_group = grp->gr_gid;
 561 #endif /* CONFIG_NATIVE_WINDOWS */
 562         return 0;
 563 }
 564
 565
 566 int main(int argc, char *argv[])
 567 {
 568         struct hapd_interfaces interfaces;
 569         int ret = 1;
 570         size_t i;
 571         int c, debug = 0, daemonize = 0;
 572         char *pid_file = NULL;
 573         const char *log_file = NULL;
 574         const char *entropy_file = NULL;
 575
 576         if (os_program_init())
 577                 return -1;
 578
 579         os_memset(&interfaces, 0, sizeof(interfaces));
 580         interfaces.reload_config = hostapd_reload_config;
 581         interfaces.config_read_cb = hostapd_config_read;
 582         interfaces.for_each_interface = hostapd_for_each_interface;
 583         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 584         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 585         interfaces.driver_init = hostapd_driver_init;
 586         interfaces.global_iface_path = NULL;
 587         interfaces.global_iface_name = NULL;
 588         interfaces.global_ctrl_sock = -1;
 589
 590         for (;;) {
 591                 c = getopt(argc, argv, "Bde:f:hKP:tvg:G:");
 592                 if (c < 0)
 593                         break;
 594                 switch (c) {
 595                 case 'h':
 596                         usage();
 597                         break;
 598                 case 'd':
 599                         debug++;
 600                         if (wpa_debug_level > 0)
 601                                 wpa_debug_level--;
 602                         break;
 603                 case 'B':
 604                         daemonize++;
 605                         break;
 606                 case 'e':
 607                         entropy_file = optarg;
 608                         break;
 609                 case 'f':
 610                         log_file = optarg;
 611                         break;
 612                 case 'K':
 613                         wpa_debug_show_keys++;
 614                         break;
 615                 case 'P':
 616                         os_free(pid_file);
 617                         pid_file = os_rel2abs_path(optarg);
 618                         break;
 619                 case 't':
 620                         wpa_debug_timestamp++;
 621                         break;
 622                 case 'v':
 623                         show_version();
 624                         exit(1);
 625                         break;
 626                 case 'g':
 627                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 628                                 return -1;
 629                         break;
 630                 case 'G':
 631                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 632                                 return -1;
 633                         break;
 634                 default:
 635                         usage();
 636                         break;
 637                 }
 638         }
 639
 640         if (optind == argc && interfaces.global_iface_path == NULL)
 641                 usage();
 642
 643         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 644
 645         if (log_file)
 646                 wpa_debug_open_file(log_file);
 647
 648         interfaces.count = argc - optind;
 649         if (interfaces.count) {
 650                 interfaces.iface = os_calloc(interfaces.count,
 651                                              sizeof(struct hostapd_iface *));
 652                 if (interfaces.iface == NULL) {
 653                         wpa_printf(MSG_ERROR, "malloc failed");
 654                         return -1;
 655                 }
 656         }
 657
 658         if (hostapd_global_init(&interfaces, entropy_file)) {
 659                 wpa_printf(MSG_ERROR, "Failed to initilize global context");
 660                 return -1;
 661         }
 662
 663         /* Initialize interfaces */
 664         for (i = 0; i < interfaces.count; i++) {
 665                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 666                                                              argv[optind + i],
 667                                                              debug);
 668                 if (!interfaces.iface[i]) {
 669                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 670                         goto out;
 671                 }
 672         }
 673
 674         hostapd_global_ctrl_iface_init(&interfaces);
 675
 676         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 677                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 678                 goto out;
 679         }
 680
 681         ret = 0;
 682
 683  out:
 684         hostapd_global_ctrl_iface_deinit(&interfaces);
 685         /* Deinitialize all interfaces */
 686         for (i = 0; i < interfaces.count; i++)
 687                 hostapd_interface_deinit_free(interfaces.iface[i]);
 688         os_free(interfaces.iface);
 689
 690         hostapd_global_deinit(pid_file);
 691         os_free(pid_file);
 692
 693         if (log_file)
 694                 wpa_debug_close_file();
 695
 696         os_program_deinit();
 697
 698         return ret;
 699 }