hostapd/main.c

   1 /*
   2  * hostapd / main()
   3  * Copyright (c) 2002-2016, 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 "fst/fst.h"
  28 #include "config_file.h"
  29 #include "eap_register.h"
  30 #include "ctrl_iface.h"
  31
  32
  33 struct hapd_global {
  34         void **drv_priv;
  35         size_t drv_count;
  36 };
  37
  38 static struct hapd_global global;
  39
  40
  41 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  42 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  43                               int level, const char *txt, size_t len)
  44 {
  45         struct hostapd_data *hapd = ctx;
  46         char *format, *module_str;
  47         int maxlen;
  48         int conf_syslog_level, conf_stdout_level;
  49         unsigned int conf_syslog, conf_stdout;
  50
  51         maxlen = len + 100;
  52         format = os_malloc(maxlen);
  53         if (!format)
  54                 return;
  55
  56         if (hapd && hapd->conf) {
  57                 conf_syslog_level = hapd->conf->logger_syslog_level;
  58                 conf_stdout_level = hapd->conf->logger_stdout_level;
  59                 conf_syslog = hapd->conf->logger_syslog;
  60                 conf_stdout = hapd->conf->logger_stdout;
  61         } else {
  62                 conf_syslog_level = conf_stdout_level = 0;
  63                 conf_syslog = conf_stdout = (unsigned int) -1;
  64         }
  65
  66         switch (module) {
  67         case HOSTAPD_MODULE_IEEE80211:
  68                 module_str = "IEEE 802.11";
  69                 break;
  70         case HOSTAPD_MODULE_IEEE8021X:
  71                 module_str = "IEEE 802.1X";
  72                 break;
  73         case HOSTAPD_MODULE_RADIUS:
  74                 module_str = "RADIUS";
  75                 break;
  76         case HOSTAPD_MODULE_WPA:
  77                 module_str = "WPA";
  78                 break;
  79         case HOSTAPD_MODULE_DRIVER:
  80                 module_str = "DRIVER";
  81                 break;
  82         case HOSTAPD_MODULE_IAPP:
  83                 module_str = "IAPP";
  84                 break;
  85         case HOSTAPD_MODULE_MLME:
  86                 module_str = "MLME";
  87                 break;
  88         default:
  89                 module_str = NULL;
  90                 break;
  91         }
  92
  93         if (hapd && hapd->conf && addr)
  94                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
  95                             hapd->conf->iface, MAC2STR(addr),
  96                             module_str ? " " : "", module_str ? module_str : "",
  97                             txt);
  98         else if (hapd && hapd->conf)
  99                 os_snprintf(format, maxlen, "%s:%s%s %s",
 100                             hapd->conf->iface, module_str ? " " : "",
 101                             module_str ? module_str : "", txt);
 102         else if (addr)
 103                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 104                             MAC2STR(addr), module_str ? " " : "",
 105                             module_str ? module_str : "", txt);
 106         else
 107                 os_snprintf(format, maxlen, "%s%s%s",
 108                             module_str ? module_str : "",
 109                             module_str ? ": " : "", txt);
 110
 111         if ((conf_stdout & module) && level >= conf_stdout_level) {
 112                 wpa_debug_print_timestamp();
 113                 wpa_printf(MSG_INFO, "%s", format);
 114         }
 115
 116 #ifndef CONFIG_NATIVE_WINDOWS
 117         if ((conf_syslog & module) && level >= conf_syslog_level) {
 118                 int priority;
 119                 switch (level) {
 120                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 121                 case HOSTAPD_LEVEL_DEBUG:
 122                         priority = LOG_DEBUG;
 123                         break;
 124                 case HOSTAPD_LEVEL_INFO:
 125                         priority = LOG_INFO;
 126                         break;
 127                 case HOSTAPD_LEVEL_NOTICE:
 128                         priority = LOG_NOTICE;
 129                         break;
 130                 case HOSTAPD_LEVEL_WARNING:
 131                         priority = LOG_WARNING;
 132                         break;
 133                 default:
 134                         priority = LOG_INFO;
 135                         break;
 136                 }
 137                 syslog(priority, "%s", format);
 138         }
 139 #endif /* CONFIG_NATIVE_WINDOWS */
 140
 141         os_free(format);
 142 }
 143 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 144
 145
 146 /**
 147  * hostapd_driver_init - Preparate driver interface
 148  */
 149 static int hostapd_driver_init(struct hostapd_iface *iface)
 150 {
 151         struct wpa_init_params params;
 152         size_t i;
 153         struct hostapd_data *hapd = iface->bss[0];
 154         struct hostapd_bss_config *conf = hapd->conf;
 155         u8 *b = conf->bssid;
 156         struct wpa_driver_capa capa;
 157
 158         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 159                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 160                 return -1;
 161         }
 162
 163         /* Initialize the driver interface */
 164         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 165                 b = NULL;
 166
 167         os_memset(&params, 0, sizeof(params));
 168         for (i = 0; wpa_drivers[i]; i++) {
 169                 if (wpa_drivers[i] != hapd->driver)
 170                         continue;
 171
 172                 if (global.drv_priv[i] == NULL &&
 173                     wpa_drivers[i]->global_init) {
 174                         global.drv_priv[i] =
 175                                 wpa_drivers[i]->global_init(iface->interfaces);
 176                         if (global.drv_priv[i] == NULL) {
 177                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 178                                            "driver '%s'",
 179                                            wpa_drivers[i]->name);
 180                                 return -1;
 181                         }
 182                 }
 183
 184                 params.global_priv = global.drv_priv[i];
 185                 break;
 186         }
 187         params.bssid = b;
 188         params.ifname = hapd->conf->iface;
 189         params.driver_params = hapd->iconf->driver_params;
 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                 struct wowlan_triggers *triggs;
 216
 217                 iface->drv_flags = capa.flags;
 218                 iface->smps_modes = capa.smps_modes;
 219                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 220                 /*
 221                  * Use default extended capa values from per-radio information
 222                  */
 223                 iface->extended_capa = capa.extended_capa;
 224                 iface->extended_capa_mask = capa.extended_capa_mask;
 225                 iface->extended_capa_len = capa.extended_capa_len;
 226                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 227
 228                 /*
 229                  * Override extended capa with per-interface type (AP), if
 230                  * available from the driver.
 231                  */
 232                 hostapd_get_ext_capa(iface);
 233
 234                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 235                 if (triggs && hapd->driver->set_wowlan) {
 236                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 237                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 238                 }
 239                 os_free(triggs);
 240         }
 241
 242         return 0;
 243 }
 244
 245
 246 /**
 247  * hostapd_interface_init - Read configuration file and init BSS data
 248  *
 249  * This function is used to parse configuration file for a full interface (one
 250  * or more BSSes sharing the same radio) and allocate memory for the BSS
 251  * interfaces. No actiual driver operations are started.
 252  */
 253 static struct hostapd_iface *
 254 hostapd_interface_init(struct hapd_interfaces *interfaces,
 255                        const char *config_fname, int debug)
 256 {
 257         struct hostapd_iface *iface;
 258         int k;
 259
 260         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 261         iface = hostapd_init(interfaces, config_fname);
 262         if (!iface)
 263                 return NULL;
 264         iface->interfaces = interfaces;
 265
 266         for (k = 0; k < debug; k++) {
 267                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 268                         iface->bss[0]->conf->logger_stdout_level--;
 269         }
 270
 271         if (iface->conf->bss[0]->iface[0] == '\0' &&
 272             !hostapd_drv_none(iface->bss[0])) {
 273                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 274                            config_fname);
 275                 hostapd_interface_deinit_free(iface);
 276                 return NULL;
 277         }
 278
 279         return iface;
 280 }
 281
 282
 283 /**
 284  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 285  */
 286 static void handle_term(int sig, void *signal_ctx)
 287 {
 288         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 289         eloop_terminate();
 290 }
 291
 292
 293 #ifndef CONFIG_NATIVE_WINDOWS
 294
 295 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 296 {
 297         if (hostapd_reload_config(iface) < 0) {
 298                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 299                            "file - continuing with old.");
 300         }
 301         return 0;
 302 }
 303
 304
 305 /**
 306  * handle_reload - SIGHUP handler to reload configuration
 307  */
 308 static void handle_reload(int sig, void *signal_ctx)
 309 {
 310         struct hapd_interfaces *interfaces = signal_ctx;
 311         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 312                    sig);
 313         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 314 }
 315
 316
 317 static void handle_dump_state(int sig, void *signal_ctx)
 318 {
 319         /* Not used anymore - ignore signal */
 320 }
 321 #endif /* CONFIG_NATIVE_WINDOWS */
 322
 323
 324 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 325                                const char *entropy_file)
 326 {
 327         int i;
 328
 329         os_memset(&global, 0, sizeof(global));
 330
 331         hostapd_logger_register_cb(hostapd_logger_cb);
 332
 333         if (eap_server_register_methods()) {
 334                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 335                 return -1;
 336         }
 337
 338         if (eloop_init()) {
 339                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 340                 return -1;
 341         }
 342         interfaces->eloop_initialized = 1;
 343
 344         random_init(entropy_file);
 345
 346 #ifndef CONFIG_NATIVE_WINDOWS
 347         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 348         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 349 #endif /* CONFIG_NATIVE_WINDOWS */
 350         eloop_register_signal_terminate(handle_term, interfaces);
 351
 352 #ifndef CONFIG_NATIVE_WINDOWS
 353         openlog("hostapd", 0, LOG_DAEMON);
 354 #endif /* CONFIG_NATIVE_WINDOWS */
 355
 356         for (i = 0; wpa_drivers[i]; i++)
 357                 global.drv_count++;
 358         if (global.drv_count == 0) {
 359                 wpa_printf(MSG_ERROR, "No drivers enabled");
 360                 return -1;
 361         }
 362         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 363         if (global.drv_priv == NULL)
 364                 return -1;
 365
 366         return 0;
 367 }
 368
 369
 370 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
 371 {
 372         int i;
 373
 374         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 375                 if (!global.drv_priv[i])
 376                         continue;
 377                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 378         }
 379         os_free(global.drv_priv);
 380         global.drv_priv = NULL;
 381
 382 #ifdef EAP_SERVER_TNC
 383         tncs_global_deinit();
 384 #endif /* EAP_SERVER_TNC */
 385
 386         random_deinit();
 387
 388         if (eloop_initialized)
 389                 eloop_destroy();
 390
 391 #ifndef CONFIG_NATIVE_WINDOWS
 392         closelog();
 393 #endif /* CONFIG_NATIVE_WINDOWS */
 394
 395         eap_server_unregister_methods();
 396
 397         os_daemonize_terminate(pid_file);
 398 }
 399
 400
 401 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 402                               const char *pid_file)
 403 {
 404 #ifdef EAP_SERVER_TNC
 405         int tnc = 0;
 406         size_t i, k;
 407
 408         for (i = 0; !tnc && i < ifaces->count; i++) {
 409                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 410                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 411                                 tnc++;
 412                                 break;
 413                         }
 414                 }
 415         }
 416
 417         if (tnc && tncs_global_init() < 0) {
 418                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 419                 return -1;
 420         }
 421 #endif /* EAP_SERVER_TNC */
 422
 423         if (daemonize) {
 424                 if (os_daemonize(pid_file)) {
 425                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 426                         return -1;
 427                 }
 428                 if (eloop_sock_requeue()) {
 429                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 430                                    strerror(errno));
 431                         return -1;
 432                 }
 433         }
 434
 435         eloop_run();
 436
 437         return 0;
 438 }
 439
 440
 441 static void show_version(void)
 442 {
 443         fprintf(stderr,
 444                 "hostapd v" VERSION_STR "\n"
 445                 "User space daemon for IEEE 802.11 AP management,\n"
 446                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 447                 "Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> "
 448                 "and contributors\n");
 449 }
 450
 451
 452 static void usage(void)
 453 {
 454         show_version();
 455         fprintf(stderr,
 456                 "\n"
 457                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 458                 "\\\n"
 459                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 460                 "         <configuration file(s)>\n"
 461                 "\n"
 462                 "options:\n"
 463                 "   -h   show this usage\n"
 464                 "   -d   show more debug messages (-dd for even more)\n"
 465                 "   -B   run daemon in the background\n"
 466                 "   -e   entropy file\n"
 467                 "   -g   global control interface path\n"
 468                 "   -G   group for control interfaces\n"
 469                 "   -P   PID file\n"
 470                 "   -K   include key data in debug messages\n"
 471 #ifdef CONFIG_DEBUG_FILE
 472                 "   -f   log output to debug file instead of stdout\n"
 473 #endif /* CONFIG_DEBUG_FILE */
 474 #ifdef CONFIG_DEBUG_LINUX_TRACING
 475                 "   -T = record to Linux tracing in addition to logging\n"
 476                 "        (records all messages regardless of debug verbosity)\n"
 477 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 478                 "   -S   start all the interfaces synchronously\n"
 479                 "   -t   include timestamps in some debug messages\n"
 480                 "   -v   show hostapd version\n");
 481
 482         exit(1);
 483 }
 484
 485
 486 static const char * hostapd_msg_ifname_cb(void *ctx)
 487 {
 488         struct hostapd_data *hapd = ctx;
 489         if (hapd && hapd->conf)
 490                 return hapd->conf->iface;
 491         return NULL;
 492 }
 493
 494
 495 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 496                                          const char *path)
 497 {
 498 #ifndef CONFIG_CTRL_IFACE_UDP
 499         char *pos;
 500 #endif /* !CONFIG_CTRL_IFACE_UDP */
 501
 502         os_free(interfaces->global_iface_path);
 503         interfaces->global_iface_path = os_strdup(path);
 504         if (interfaces->global_iface_path == NULL)
 505                 return -1;
 506
 507 #ifndef CONFIG_CTRL_IFACE_UDP
 508         pos = os_strrchr(interfaces->global_iface_path, '/');
 509         if (pos == NULL) {
 510                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 511                            "file");
 512                 os_free(interfaces->global_iface_path);
 513                 interfaces->global_iface_path = NULL;
 514                 return -1;
 515         }
 516
 517         *pos = '\0';
 518         interfaces->global_iface_name = pos + 1;
 519 #endif /* !CONFIG_CTRL_IFACE_UDP */
 520
 521         return 0;
 522 }
 523
 524
 525 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 526                                         const char *group)
 527 {
 528 #ifndef CONFIG_NATIVE_WINDOWS
 529         struct group *grp;
 530         grp = getgrnam(group);
 531         if (grp == NULL) {
 532                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 533                 return -1;
 534         }
 535         interfaces->ctrl_iface_group = grp->gr_gid;
 536 #endif /* CONFIG_NATIVE_WINDOWS */
 537         return 0;
 538 }
 539
 540
 541 #ifdef CONFIG_WPS
 542 static int gen_uuid(const char *txt_addr)
 543 {
 544         u8 addr[ETH_ALEN];
 545         u8 uuid[UUID_LEN];
 546         char buf[100];
 547
 548         if (hwaddr_aton(txt_addr, addr) < 0)
 549                 return -1;
 550
 551         uuid_gen_mac_addr(addr, uuid);
 552         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 553                 return -1;
 554
 555         printf("%s\n", buf);
 556
 557         return 0;
 558 }
 559 #endif /* CONFIG_WPS */
 560
 561
 562 #ifndef HOSTAPD_CLEANUP_INTERVAL
 563 #define HOSTAPD_CLEANUP_INTERVAL 10
 564 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 565
 566 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 567 {
 568         hostapd_periodic_iface(iface);
 569         return 0;
 570 }
 571
 572
 573 /* Periodic cleanup tasks */
 574 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 575 {
 576         struct hapd_interfaces *interfaces = eloop_ctx;
 577
 578         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 579                                hostapd_periodic, interfaces, NULL);
 580         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 581 }
 582
 583
 584 int main(int argc, char *argv[])
 585 {
 586         struct hapd_interfaces interfaces;
 587         int ret = 1;
 588         size_t i, j;
 589         int c, debug = 0, daemonize = 0;
 590         char *pid_file = NULL;
 591         const char *log_file = NULL;
 592         const char *entropy_file = NULL;
 593         char **bss_config = NULL, **tmp_bss;
 594         size_t num_bss_configs = 0;
 595 #ifdef CONFIG_DEBUG_LINUX_TRACING
 596         int enable_trace_dbg = 0;
 597 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 598         int start_ifaces_in_sync = 0;
 599
 600         if (os_program_init())
 601                 return -1;
 602
 603         os_memset(&interfaces, 0, sizeof(interfaces));
 604         interfaces.reload_config = hostapd_reload_config;
 605         interfaces.config_read_cb = hostapd_config_read;
 606         interfaces.for_each_interface = hostapd_for_each_interface;
 607         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 608         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 609         interfaces.driver_init = hostapd_driver_init;
 610         interfaces.global_iface_path = NULL;
 611         interfaces.global_iface_name = NULL;
 612         interfaces.global_ctrl_sock = -1;
 613         dl_list_init(&interfaces.global_ctrl_dst);
 614
 615         for (;;) {
 616                 c = getopt(argc, argv, "b:Bde:f:hKP:STtu:vg:G:");
 617                 if (c < 0)
 618                         break;
 619                 switch (c) {
 620                 case 'h':
 621                         usage();
 622                         break;
 623                 case 'd':
 624                         debug++;
 625                         if (wpa_debug_level > 0)
 626                                 wpa_debug_level--;
 627                         break;
 628                 case 'B':
 629                         daemonize++;
 630                         break;
 631                 case 'e':
 632                         entropy_file = optarg;
 633                         break;
 634                 case 'f':
 635                         log_file = optarg;
 636                         break;
 637                 case 'K':
 638                         wpa_debug_show_keys++;
 639                         break;
 640                 case 'P':
 641                         os_free(pid_file);
 642                         pid_file = os_rel2abs_path(optarg);
 643                         break;
 644                 case 't':
 645                         wpa_debug_timestamp++;
 646                         break;
 647 #ifdef CONFIG_DEBUG_LINUX_TRACING
 648                 case 'T':
 649                         enable_trace_dbg = 1;
 650                         break;
 651 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 652                 case 'v':
 653                         show_version();
 654                         exit(1);
 655                         break;
 656                 case 'g':
 657                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 658                                 return -1;
 659                         break;
 660                 case 'G':
 661                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 662                                 return -1;
 663                         break;
 664                 case 'b':
 665                         tmp_bss = os_realloc_array(bss_config,
 666                                                    num_bss_configs + 1,
 667                                                    sizeof(char *));
 668                         if (tmp_bss == NULL)
 669                                 goto out;
 670                         bss_config = tmp_bss;
 671                         bss_config[num_bss_configs++] = optarg;
 672                         break;
 673                 case 'S':
 674                         start_ifaces_in_sync = 1;
 675                         break;
 676 #ifdef CONFIG_WPS
 677                 case 'u':
 678                         return gen_uuid(optarg);
 679 #endif /* CONFIG_WPS */
 680                 default:
 681                         usage();
 682                         break;
 683                 }
 684         }
 685
 686         if (optind == argc && interfaces.global_iface_path == NULL &&
 687             num_bss_configs == 0)
 688                 usage();
 689
 690         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 691
 692         if (log_file)
 693                 wpa_debug_open_file(log_file);
 694         else
 695                 wpa_debug_setup_stdout();
 696 #ifdef CONFIG_DEBUG_LINUX_TRACING
 697         if (enable_trace_dbg) {
 698                 int tret = wpa_debug_open_linux_tracing();
 699                 if (tret) {
 700                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 701                         return -1;
 702                 }
 703         }
 704 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 705
 706         interfaces.count = argc - optind;
 707         if (interfaces.count || num_bss_configs) {
 708                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 709                                              sizeof(struct hostapd_iface *));
 710                 if (interfaces.iface == NULL) {
 711                         wpa_printf(MSG_ERROR, "malloc failed");
 712                         return -1;
 713                 }
 714         }
 715
 716         if (hostapd_global_init(&interfaces, entropy_file)) {
 717                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 718                 return -1;
 719         }
 720
 721         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 722                                hostapd_periodic, &interfaces, NULL);
 723
 724         if (fst_global_init()) {
 725                 wpa_printf(MSG_ERROR,
 726                            "Failed to initialize global FST context");
 727                 goto out;
 728         }
 729
 730 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 731         if (!fst_global_add_ctrl(fst_ctrl_cli))
 732                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 733 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 734
 735         /* Allocate and parse configuration for full interface files */
 736         for (i = 0; i < interfaces.count; i++) {
 737                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 738                                                              argv[optind + i],
 739                                                              debug);
 740                 if (!interfaces.iface[i]) {
 741                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 742                         goto out;
 743                 }
 744                 if (start_ifaces_in_sync)
 745                         interfaces.iface[i]->need_to_start_in_sync = 1;
 746         }
 747
 748         /* Allocate and parse configuration for per-BSS files */
 749         for (i = 0; i < num_bss_configs; i++) {
 750                 struct hostapd_iface *iface;
 751                 char *fname;
 752
 753                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 754                 fname = os_strchr(bss_config[i], ':');
 755                 if (fname == NULL) {
 756                         wpa_printf(MSG_ERROR,
 757                                    "Invalid BSS config identifier '%s'",
 758                                    bss_config[i]);
 759                         goto out;
 760                 }
 761                 *fname++ = '\0';
 762                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 763                                                    fname, debug);
 764                 if (iface == NULL)
 765                         goto out;
 766                 for (j = 0; j < interfaces.count; j++) {
 767                         if (interfaces.iface[j] == iface)
 768                                 break;
 769                 }
 770                 if (j == interfaces.count) {
 771                         struct hostapd_iface **tmp;
 772                         tmp = os_realloc_array(interfaces.iface,
 773                                                interfaces.count + 1,
 774                                                sizeof(struct hostapd_iface *));
 775                         if (tmp == NULL) {
 776                                 hostapd_interface_deinit_free(iface);
 777                                 goto out;
 778                         }
 779                         interfaces.iface = tmp;
 780                         interfaces.iface[interfaces.count++] = iface;
 781                 }
 782         }
 783
 784         /*
 785          * Enable configured interfaces. Depending on channel configuration,
 786          * this may complete full initialization before returning or use a
 787          * callback mechanism to complete setup in case of operations like HT
 788          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 789          * In such case, the interface will be enabled from eloop context within
 790          * hostapd_global_run().
 791          */
 792         interfaces.terminate_on_error = interfaces.count;
 793         for (i = 0; i < interfaces.count; i++) {
 794                 if (hostapd_driver_init(interfaces.iface[i]) ||
 795                     hostapd_setup_interface(interfaces.iface[i]))
 796                         goto out;
 797         }
 798
 799         hostapd_global_ctrl_iface_init(&interfaces);
 800
 801         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 802                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 803                 goto out;
 804         }
 805
 806         ret = 0;
 807
 808  out:
 809         hostapd_global_ctrl_iface_deinit(&interfaces);
 810         /* Deinitialize all interfaces */
 811         for (i = 0; i < interfaces.count; i++) {
 812                 if (!interfaces.iface[i])
 813                         continue;
 814                 interfaces.iface[i]->driver_ap_teardown =
 815                         !!(interfaces.iface[i]->drv_flags &
 816                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 817                 hostapd_interface_deinit_free(interfaces.iface[i]);
 818         }
 819         os_free(interfaces.iface);
 820
 821         if (interfaces.eloop_initialized)
 822                 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 823         hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
 824         os_free(pid_file);
 825
 826         if (log_file)
 827                 wpa_debug_close_file();
 828         wpa_debug_close_linux_tracing();
 829
 830         os_free(bss_config);
 831
 832         fst_global_deinit();
 833
 834         os_program_deinit();
 835
 836         return ret;
 837 }