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         }
 283
 284         return 0;
 285 }
 286
 287
 288 static struct hostapd_iface *
 289 hostapd_interface_init(struct hapd_interfaces *interfaces,
 290                        const char *config_fname, int debug)
 291 {
 292         struct hostapd_iface *iface;
 293         int k;
 294
 295         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 296         iface = hostapd_init(config_fname);
 297         if (!iface)
 298                 return NULL;
 299         iface->interfaces = interfaces;
 300
 301         for (k = 0; k < debug; k++) {
 302                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 303                         iface->bss[0]->conf->logger_stdout_level--;
 304         }
 305
 306         if (iface->conf->bss[0].iface[0] == '\0' &&
 307             !hostapd_drv_none(iface->bss[0])) {
 308                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 309                            config_fname);
 310                 hostapd_interface_deinit_free(iface);
 311                 return NULL;
 312         }
 313
 314         if (hostapd_driver_init(iface) ||
 315             hostapd_setup_interface(iface)) {
 316                 hostapd_interface_deinit_free(iface);
 317                 return NULL;
 318         }
 319
 320         return iface;
 321 }
 322
 323
 324 /**
 325  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 326  */
 327 static void handle_term(int sig, void *signal_ctx)
 328 {
 329         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 330         eloop_terminate();
 331 }
 332
 333
 334 #ifndef CONFIG_NATIVE_WINDOWS
 335
 336 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 337 {
 338         if (hostapd_reload_config(iface) < 0) {
 339                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 340                            "file - continuing with old.");
 341         }
 342         return 0;
 343 }
 344
 345
 346 /**
 347  * handle_reload - SIGHUP handler to reload configuration
 348  */
 349 static void handle_reload(int sig, void *signal_ctx)
 350 {
 351         struct hapd_interfaces *interfaces = signal_ctx;
 352         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 353                    sig);
 354         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 355 }
 356
 357
 358 static void handle_dump_state(int sig, void *signal_ctx)
 359 {
 360 #ifdef HOSTAPD_DUMP_STATE
 361         struct hapd_interfaces *interfaces = signal_ctx;
 362         hostapd_for_each_interface(interfaces, handle_dump_state_iface, NULL);
 363 #endif /* HOSTAPD_DUMP_STATE */
 364 }
 365 #endif /* CONFIG_NATIVE_WINDOWS */
 366
 367
 368 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 369                                const char *entropy_file)
 370 {
 371         int i;
 372
 373         os_memset(&global, 0, sizeof(global));
 374
 375         hostapd_logger_register_cb(hostapd_logger_cb);
 376
 377         if (eap_server_register_methods()) {
 378                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 379                 return -1;
 380         }
 381
 382         if (eloop_init()) {
 383                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 384                 return -1;
 385         }
 386
 387         random_init(entropy_file);
 388
 389 #ifndef CONFIG_NATIVE_WINDOWS
 390         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 391         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 392 #endif /* CONFIG_NATIVE_WINDOWS */
 393         eloop_register_signal_terminate(handle_term, interfaces);
 394
 395 #ifndef CONFIG_NATIVE_WINDOWS
 396         openlog("hostapd", 0, LOG_DAEMON);
 397 #endif /* CONFIG_NATIVE_WINDOWS */
 398
 399         for (i = 0; wpa_drivers[i]; i++)
 400                 global.drv_count++;
 401         if (global.drv_count == 0) {
 402                 wpa_printf(MSG_ERROR, "No drivers enabled");
 403                 return -1;
 404         }
 405         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 406         if (global.drv_priv == NULL)
 407                 return -1;
 408
 409         return 0;
 410 }
 411
 412
 413 static void hostapd_global_deinit(const char *pid_file)
 414 {
 415         int i;
 416
 417         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 418                 if (!global.drv_priv[i])
 419                         continue;
 420                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 421         }
 422         os_free(global.drv_priv);
 423         global.drv_priv = NULL;
 424
 425 #ifdef EAP_SERVER_TNC
 426         tncs_global_deinit();
 427 #endif /* EAP_SERVER_TNC */
 428
 429         random_deinit();
 430
 431         eloop_destroy();
 432
 433 #ifndef CONFIG_NATIVE_WINDOWS
 434         closelog();
 435 #endif /* CONFIG_NATIVE_WINDOWS */
 436
 437         eap_server_unregister_methods();
 438
 439         os_daemonize_terminate(pid_file);
 440 }
 441
 442
 443 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 444                               const char *pid_file)
 445 {
 446 #ifdef EAP_SERVER_TNC
 447         int tnc = 0;
 448         size_t i, k;
 449
 450         for (i = 0; !tnc && i < ifaces->count; i++) {
 451                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 452                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 453                                 tnc++;
 454                                 break;
 455                         }
 456                 }
 457         }
 458
 459         if (tnc && tncs_global_init() < 0) {
 460                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 461                 return -1;
 462         }
 463 #endif /* EAP_SERVER_TNC */
 464
 465         if (daemonize && os_daemonize(pid_file)) {
 466                 perror("daemon");
 467                 return -1;
 468         }
 469
 470         eloop_run();
 471
 472         return 0;
 473 }
 474
 475
 476 static void show_version(void)
 477 {
 478         fprintf(stderr,
 479                 "hostapd v" VERSION_STR "\n"
 480                 "User space daemon for IEEE 802.11 AP management,\n"
 481                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 482                 "Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi> "
 483                 "and contributors\n");
 484 }
 485
 486
 487 static void usage(void)
 488 {
 489         show_version();
 490         fprintf(stderr,
 491                 "\n"
 492                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 493                 "\\\n"
 494                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 495                 "         <configuration file(s)>\n"
 496                 "\n"
 497                 "options:\n"
 498                 "   -h   show this usage\n"
 499                 "   -d   show more debug messages (-dd for even more)\n"
 500                 "   -B   run daemon in the background\n"
 501                 "   -e   entropy file\n"
 502                 "   -g   global control interface path\n"
 503                 "   -G   group for control interfaces\n"
 504                 "   -P   PID file\n"
 505                 "   -K   include key data in debug messages\n"
 506 #ifdef CONFIG_DEBUG_FILE
 507                 "   -f   log output to debug file instead of stdout\n"
 508 #endif /* CONFIG_DEBUG_FILE */
 509                 "   -t   include timestamps in some debug messages\n"
 510                 "   -v   show hostapd version\n");
 511
 512         exit(1);
 513 }
 514
 515
 516 static const char * hostapd_msg_ifname_cb(void *ctx)
 517 {
 518         struct hostapd_data *hapd = ctx;
 519         if (hapd && hapd->iconf && hapd->iconf->bss)
 520                 return hapd->iconf->bss->iface;
 521         return NULL;
 522 }
 523
 524
 525 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 526                                          const char *path)
 527 {
 528         char *pos;
 529         os_free(interfaces->global_iface_path);
 530         interfaces->global_iface_path = os_strdup(path);
 531         if (interfaces->global_iface_path == NULL)
 532                 return -1;
 533         pos = os_strrchr(interfaces->global_iface_path, '/');
 534         if (pos == NULL) {
 535                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 536                            "file");
 537                 os_free(interfaces->global_iface_path);
 538                 interfaces->global_iface_path = NULL;
 539                 return -1;
 540         }
 541
 542         *pos = '\0';
 543         interfaces->global_iface_name = pos + 1;
 544
 545         return 0;
 546 }
 547
 548
 549 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 550                                         const char *group)
 551 {
 552 #ifndef CONFIG_NATIVE_WINDOWS
 553         struct group *grp;
 554         grp = getgrnam(group);
 555         if (grp == NULL) {
 556                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 557                 return -1;
 558         }
 559         interfaces->ctrl_iface_group = grp->gr_gid;
 560 #endif /* CONFIG_NATIVE_WINDOWS */
 561         return 0;
 562 }
 563
 564
 565 int main(int argc, char *argv[])
 566 {
 567         struct hapd_interfaces interfaces;
 568         int ret = 1;
 569         size_t i;
 570         int c, debug = 0, daemonize = 0;
 571         char *pid_file = NULL;
 572         const char *log_file = NULL;
 573         const char *entropy_file = NULL;
 574
 575         if (os_program_init())
 576                 return -1;
 577
 578         os_memset(&interfaces, 0, sizeof(interfaces));
 579         interfaces.reload_config = hostapd_reload_config;
 580         interfaces.config_read_cb = hostapd_config_read;
 581         interfaces.for_each_interface = hostapd_for_each_interface;
 582         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 583         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 584         interfaces.driver_init = hostapd_driver_init;
 585         interfaces.global_iface_path = NULL;
 586         interfaces.global_iface_name = NULL;
 587         interfaces.global_ctrl_sock = -1;
 588
 589         for (;;) {
 590                 c = getopt(argc, argv, "Bde:f:hKP:tvg:G:");
 591                 if (c < 0)
 592                         break;
 593                 switch (c) {
 594                 case 'h':
 595                         usage();
 596                         break;
 597                 case 'd':
 598                         debug++;
 599                         if (wpa_debug_level > 0)
 600                                 wpa_debug_level--;
 601                         break;
 602                 case 'B':
 603                         daemonize++;
 604                         break;
 605                 case 'e':
 606                         entropy_file = optarg;
 607                         break;
 608                 case 'f':
 609                         log_file = optarg;
 610                         break;
 611                 case 'K':
 612                         wpa_debug_show_keys++;
 613                         break;
 614                 case 'P':
 615                         os_free(pid_file);
 616                         pid_file = os_rel2abs_path(optarg);
 617                         break;
 618                 case 't':
 619                         wpa_debug_timestamp++;
 620                         break;
 621                 case 'v':
 622                         show_version();
 623                         exit(1);
 624                         break;
 625                 case 'g':
 626                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 627                                 return -1;
 628                         break;
 629                 case 'G':
 630                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 631                                 return -1;
 632                         break;
 633                 default:
 634                         usage();
 635                         break;
 636                 }
 637         }
 638
 639         if (optind == argc && interfaces.global_iface_path == NULL)
 640                 usage();
 641
 642         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 643
 644         if (log_file)
 645                 wpa_debug_open_file(log_file);
 646
 647         interfaces.count = argc - optind;
 648         if (interfaces.count) {
 649                 interfaces.iface = os_calloc(interfaces.count,
 650                                              sizeof(struct hostapd_iface *));
 651                 if (interfaces.iface == NULL) {
 652                         wpa_printf(MSG_ERROR, "malloc failed");
 653                         return -1;
 654                 }
 655         }
 656
 657         if (hostapd_global_init(&interfaces, entropy_file)) {
 658                 wpa_printf(MSG_ERROR, "Failed to initilize global context");
 659                 return -1;
 660         }
 661
 662         /* Initialize interfaces */
 663         for (i = 0; i < interfaces.count; i++) {
 664                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 665                                                              argv[optind + i],
 666                                                              debug);
 667                 if (!interfaces.iface[i]) {
 668                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 669                         goto out;
 670                 }
 671         }
 672
 673         hostapd_global_ctrl_iface_init(&interfaces);
 674
 675         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 676                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 677                 goto out;
 678         }
 679
 680         ret = 0;
 681
 682  out:
 683         hostapd_global_ctrl_iface_deinit(&interfaces);
 684         /* Deinitialize all interfaces */
 685         for (i = 0; i < interfaces.count; i++)
 686                 hostapd_interface_deinit_free(interfaces.iface[i]);
 687         os_free(interfaces.iface);
 688
 689         hostapd_global_deinit(pid_file);
 690         os_free(pid_file);
 691
 692         if (log_file)
 693                 wpa_debug_close_file();
 694
 695         os_program_deinit();
 696
 697         return ret;
 698 }