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] = wpa_drivers[i]->global_init();
 175                         if (global.drv_priv[i] == NULL) {
 176                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 177                                            "driver '%s'",
 178                                            wpa_drivers[i]->name);
 179                                 return -1;
 180                         }
 181                 }
 182
 183                 params.global_priv = global.drv_priv[i];
 184                 break;
 185         }
 186         params.bssid = b;
 187         params.ifname = hapd->conf->iface;
 188         params.driver_params = hapd->iconf->driver_params;
 189         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 190
 191         params.num_bridge = hapd->iface->num_bss;
 192         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 193         if (params.bridge == NULL)
 194                 return -1;
 195         for (i = 0; i < hapd->iface->num_bss; i++) {
 196                 struct hostapd_data *bss = hapd->iface->bss[i];
 197                 if (bss->conf->bridge[0])
 198                         params.bridge[i] = bss->conf->bridge;
 199         }
 200
 201         params.own_addr = hapd->own_addr;
 202
 203         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 204         os_free(params.bridge);
 205         if (hapd->drv_priv == NULL) {
 206                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 207                            hapd->driver->name);
 208                 hapd->driver = NULL;
 209                 return -1;
 210         }
 211
 212         if (hapd->driver->get_capa &&
 213             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 214                 struct wowlan_triggers *triggs;
 215
 216                 iface->drv_flags = capa.flags;
 217                 iface->smps_modes = capa.smps_modes;
 218                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 219                 iface->extended_capa = capa.extended_capa;
 220                 iface->extended_capa_mask = capa.extended_capa_mask;
 221                 iface->extended_capa_len = capa.extended_capa_len;
 222                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 223
 224                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 225                 if (triggs && hapd->driver->set_wowlan) {
 226                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 227                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 228                 }
 229                 os_free(triggs);
 230         }
 231
 232         return 0;
 233 }
 234
 235
 236 /**
 237  * hostapd_interface_init - Read configuration file and init BSS data
 238  *
 239  * This function is used to parse configuration file for a full interface (one
 240  * or more BSSes sharing the same radio) and allocate memory for the BSS
 241  * interfaces. No actiual driver operations are started.
 242  */
 243 static struct hostapd_iface *
 244 hostapd_interface_init(struct hapd_interfaces *interfaces,
 245                        const char *config_fname, int debug)
 246 {
 247         struct hostapd_iface *iface;
 248         int k;
 249
 250         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 251         iface = hostapd_init(interfaces, config_fname);
 252         if (!iface)
 253                 return NULL;
 254         iface->interfaces = interfaces;
 255
 256         for (k = 0; k < debug; k++) {
 257                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 258                         iface->bss[0]->conf->logger_stdout_level--;
 259         }
 260
 261         if (iface->conf->bss[0]->iface[0] == '\0' &&
 262             !hostapd_drv_none(iface->bss[0])) {
 263                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
 264                            config_fname);
 265                 hostapd_interface_deinit_free(iface);
 266                 return NULL;
 267         }
 268
 269         return iface;
 270 }
 271
 272
 273 /**
 274  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 275  */
 276 static void handle_term(int sig, void *signal_ctx)
 277 {
 278         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 279         eloop_terminate();
 280 }
 281
 282
 283 #ifndef CONFIG_NATIVE_WINDOWS
 284
 285 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 286 {
 287         if (hostapd_reload_config(iface) < 0) {
 288                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 289                            "file - continuing with old.");
 290         }
 291         return 0;
 292 }
 293
 294
 295 /**
 296  * handle_reload - SIGHUP handler to reload configuration
 297  */
 298 static void handle_reload(int sig, void *signal_ctx)
 299 {
 300         struct hapd_interfaces *interfaces = signal_ctx;
 301         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 302                    sig);
 303         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 304 }
 305
 306
 307 static void handle_dump_state(int sig, void *signal_ctx)
 308 {
 309         /* Not used anymore - ignore signal */
 310 }
 311 #endif /* CONFIG_NATIVE_WINDOWS */
 312
 313
 314 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 315                                const char *entropy_file)
 316 {
 317         int i;
 318
 319         os_memset(&global, 0, sizeof(global));
 320
 321         hostapd_logger_register_cb(hostapd_logger_cb);
 322
 323         if (eap_server_register_methods()) {
 324                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 325                 return -1;
 326         }
 327
 328         if (eloop_init()) {
 329                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 330                 return -1;
 331         }
 332
 333         random_init(entropy_file);
 334
 335 #ifndef CONFIG_NATIVE_WINDOWS
 336         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 337         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 338 #endif /* CONFIG_NATIVE_WINDOWS */
 339         eloop_register_signal_terminate(handle_term, interfaces);
 340
 341 #ifndef CONFIG_NATIVE_WINDOWS
 342         openlog("hostapd", 0, LOG_DAEMON);
 343 #endif /* CONFIG_NATIVE_WINDOWS */
 344
 345         for (i = 0; wpa_drivers[i]; i++)
 346                 global.drv_count++;
 347         if (global.drv_count == 0) {
 348                 wpa_printf(MSG_ERROR, "No drivers enabled");
 349                 return -1;
 350         }
 351         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 352         if (global.drv_priv == NULL)
 353                 return -1;
 354
 355         return 0;
 356 }
 357
 358
 359 static void hostapd_global_deinit(const char *pid_file)
 360 {
 361         int i;
 362
 363         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 364                 if (!global.drv_priv[i])
 365                         continue;
 366                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 367         }
 368         os_free(global.drv_priv);
 369         global.drv_priv = NULL;
 370
 371 #ifdef EAP_SERVER_TNC
 372         tncs_global_deinit();
 373 #endif /* EAP_SERVER_TNC */
 374
 375         random_deinit();
 376
 377         eloop_destroy();
 378
 379 #ifndef CONFIG_NATIVE_WINDOWS
 380         closelog();
 381 #endif /* CONFIG_NATIVE_WINDOWS */
 382
 383         eap_server_unregister_methods();
 384
 385         os_daemonize_terminate(pid_file);
 386 }
 387
 388
 389 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 390                               const char *pid_file)
 391 {
 392 #ifdef EAP_SERVER_TNC
 393         int tnc = 0;
 394         size_t i, k;
 395
 396         for (i = 0; !tnc && i < ifaces->count; i++) {
 397                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 398                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 399                                 tnc++;
 400                                 break;
 401                         }
 402                 }
 403         }
 404
 405         if (tnc && tncs_global_init() < 0) {
 406                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 407                 return -1;
 408         }
 409 #endif /* EAP_SERVER_TNC */
 410
 411         if (daemonize) {
 412                 if (os_daemonize(pid_file)) {
 413                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 414                         return -1;
 415                 }
 416                 if (eloop_sock_requeue()) {
 417                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 418                                    strerror(errno));
 419                         return -1;
 420                 }
 421         }
 422
 423         eloop_run();
 424
 425         return 0;
 426 }
 427
 428
 429 static void show_version(void)
 430 {
 431         fprintf(stderr,
 432                 "hostapd v" VERSION_STR "\n"
 433                 "User space daemon for IEEE 802.11 AP management,\n"
 434                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 435                 "Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> "
 436                 "and contributors\n");
 437 }
 438
 439
 440 static void usage(void)
 441 {
 442         show_version();
 443         fprintf(stderr,
 444                 "\n"
 445                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 446                 "\\\n"
 447                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 448                 "         <configuration file(s)>\n"
 449                 "\n"
 450                 "options:\n"
 451                 "   -h   show this usage\n"
 452                 "   -d   show more debug messages (-dd for even more)\n"
 453                 "   -B   run daemon in the background\n"
 454                 "   -e   entropy file\n"
 455                 "   -g   global control interface path\n"
 456                 "   -G   group for control interfaces\n"
 457                 "   -P   PID file\n"
 458                 "   -K   include key data in debug messages\n"
 459 #ifdef CONFIG_DEBUG_FILE
 460                 "   -f   log output to debug file instead of stdout\n"
 461 #endif /* CONFIG_DEBUG_FILE */
 462 #ifdef CONFIG_DEBUG_LINUX_TRACING
 463                 "   -T = record to Linux tracing in addition to logging\n"
 464                 "        (records all messages regardless of debug verbosity)\n"
 465 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 466                 "   -S   start all the interfaces synchronously\n"
 467                 "   -t   include timestamps in some debug messages\n"
 468                 "   -v   show hostapd version\n");
 469
 470         exit(1);
 471 }
 472
 473
 474 static const char * hostapd_msg_ifname_cb(void *ctx)
 475 {
 476         struct hostapd_data *hapd = ctx;
 477         if (hapd && hapd->conf)
 478                 return hapd->conf->iface;
 479         return NULL;
 480 }
 481
 482
 483 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 484                                          const char *path)
 485 {
 486 #ifndef CONFIG_CTRL_IFACE_UDP
 487         char *pos;
 488 #endif /* !CONFIG_CTRL_IFACE_UDP */
 489
 490         os_free(interfaces->global_iface_path);
 491         interfaces->global_iface_path = os_strdup(path);
 492         if (interfaces->global_iface_path == NULL)
 493                 return -1;
 494
 495 #ifndef CONFIG_CTRL_IFACE_UDP
 496         pos = os_strrchr(interfaces->global_iface_path, '/');
 497         if (pos == NULL) {
 498                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 499                            "file");
 500                 os_free(interfaces->global_iface_path);
 501                 interfaces->global_iface_path = NULL;
 502                 return -1;
 503         }
 504
 505         *pos = '\0';
 506         interfaces->global_iface_name = pos + 1;
 507 #endif /* !CONFIG_CTRL_IFACE_UDP */
 508
 509         return 0;
 510 }
 511
 512
 513 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 514                                         const char *group)
 515 {
 516 #ifndef CONFIG_NATIVE_WINDOWS
 517         struct group *grp;
 518         grp = getgrnam(group);
 519         if (grp == NULL) {
 520                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 521                 return -1;
 522         }
 523         interfaces->ctrl_iface_group = grp->gr_gid;
 524 #endif /* CONFIG_NATIVE_WINDOWS */
 525         return 0;
 526 }
 527
 528
 529 #ifdef CONFIG_WPS
 530 static int gen_uuid(const char *txt_addr)
 531 {
 532         u8 addr[ETH_ALEN];
 533         u8 uuid[UUID_LEN];
 534         char buf[100];
 535
 536         if (hwaddr_aton(txt_addr, addr) < 0)
 537                 return -1;
 538
 539         uuid_gen_mac_addr(addr, uuid);
 540         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 541                 return -1;
 542
 543         printf("%s\n", buf);
 544
 545         return 0;
 546 }
 547 #endif /* CONFIG_WPS */
 548
 549
 550 #ifndef HOSTAPD_CLEANUP_INTERVAL
 551 #define HOSTAPD_CLEANUP_INTERVAL 10
 552 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 553
 554 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 555 {
 556         hostapd_periodic_iface(iface);
 557         return 0;
 558 }
 559
 560
 561 /* Periodic cleanup tasks */
 562 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 563 {
 564         struct hapd_interfaces *interfaces = eloop_ctx;
 565
 566         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 567                                hostapd_periodic, interfaces, NULL);
 568         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 569 }
 570
 571
 572 int main(int argc, char *argv[])
 573 {
 574         struct hapd_interfaces interfaces;
 575         int ret = 1;
 576         size_t i, j;
 577         int c, debug = 0, daemonize = 0;
 578         char *pid_file = NULL;
 579         const char *log_file = NULL;
 580         const char *entropy_file = NULL;
 581         char **bss_config = NULL, **tmp_bss;
 582         size_t num_bss_configs = 0;
 583 #ifdef CONFIG_DEBUG_LINUX_TRACING
 584         int enable_trace_dbg = 0;
 585 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 586         int start_ifaces_in_sync = 0;
 587
 588         if (os_program_init())
 589                 return -1;
 590
 591         os_memset(&interfaces, 0, sizeof(interfaces));
 592         interfaces.reload_config = hostapd_reload_config;
 593         interfaces.config_read_cb = hostapd_config_read;
 594         interfaces.for_each_interface = hostapd_for_each_interface;
 595         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 596         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 597         interfaces.driver_init = hostapd_driver_init;
 598         interfaces.global_iface_path = NULL;
 599         interfaces.global_iface_name = NULL;
 600         interfaces.global_ctrl_sock = -1;
 601         dl_list_init(&interfaces.global_ctrl_dst);
 602
 603         for (;;) {
 604                 c = getopt(argc, argv, "b:Bde:f:hKP:STtu:vg:G:");
 605                 if (c < 0)
 606                         break;
 607                 switch (c) {
 608                 case 'h':
 609                         usage();
 610                         break;
 611                 case 'd':
 612                         debug++;
 613                         if (wpa_debug_level > 0)
 614                                 wpa_debug_level--;
 615                         break;
 616                 case 'B':
 617                         daemonize++;
 618                         break;
 619                 case 'e':
 620                         entropy_file = optarg;
 621                         break;
 622                 case 'f':
 623                         log_file = optarg;
 624                         break;
 625                 case 'K':
 626                         wpa_debug_show_keys++;
 627                         break;
 628                 case 'P':
 629                         os_free(pid_file);
 630                         pid_file = os_rel2abs_path(optarg);
 631                         break;
 632                 case 't':
 633                         wpa_debug_timestamp++;
 634                         break;
 635 #ifdef CONFIG_DEBUG_LINUX_TRACING
 636                 case 'T':
 637                         enable_trace_dbg = 1;
 638                         break;
 639 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 640                 case 'v':
 641                         show_version();
 642                         exit(1);
 643                         break;
 644                 case 'g':
 645                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 646                                 return -1;
 647                         break;
 648                 case 'G':
 649                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 650                                 return -1;
 651                         break;
 652                 case 'b':
 653                         tmp_bss = os_realloc_array(bss_config,
 654                                                    num_bss_configs + 1,
 655                                                    sizeof(char *));
 656                         if (tmp_bss == NULL)
 657                                 goto out;
 658                         bss_config = tmp_bss;
 659                         bss_config[num_bss_configs++] = optarg;
 660                         break;
 661                 case 'S':
 662                         start_ifaces_in_sync = 1;
 663                         break;
 664 #ifdef CONFIG_WPS
 665                 case 'u':
 666                         return gen_uuid(optarg);
 667 #endif /* CONFIG_WPS */
 668                 default:
 669                         usage();
 670                         break;
 671                 }
 672         }
 673
 674         if (optind == argc && interfaces.global_iface_path == NULL &&
 675             num_bss_configs == 0)
 676                 usage();
 677
 678         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 679
 680         if (log_file)
 681                 wpa_debug_open_file(log_file);
 682         else
 683                 wpa_debug_setup_stdout();
 684 #ifdef CONFIG_DEBUG_LINUX_TRACING
 685         if (enable_trace_dbg) {
 686                 int tret = wpa_debug_open_linux_tracing();
 687                 if (tret) {
 688                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 689                         return -1;
 690                 }
 691         }
 692 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 693
 694         interfaces.count = argc - optind;
 695         if (interfaces.count || num_bss_configs) {
 696                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 697                                              sizeof(struct hostapd_iface *));
 698                 if (interfaces.iface == NULL) {
 699                         wpa_printf(MSG_ERROR, "malloc failed");
 700                         return -1;
 701                 }
 702         }
 703
 704         if (hostapd_global_init(&interfaces, entropy_file)) {
 705                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 706                 return -1;
 707         }
 708
 709         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 710                                hostapd_periodic, &interfaces, NULL);
 711
 712         if (fst_global_init()) {
 713                 wpa_printf(MSG_ERROR,
 714                            "Failed to initialize global FST context");
 715                 goto out;
 716         }
 717
 718 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 719         if (!fst_global_add_ctrl(fst_ctrl_cli))
 720                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 721 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 722
 723         /* Allocate and parse configuration for full interface files */
 724         for (i = 0; i < interfaces.count; i++) {
 725                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 726                                                              argv[optind + i],
 727                                                              debug);
 728                 if (!interfaces.iface[i]) {
 729                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 730                         goto out;
 731                 }
 732                 if (start_ifaces_in_sync)
 733                         interfaces.iface[i]->need_to_start_in_sync = 1;
 734         }
 735
 736         /* Allocate and parse configuration for per-BSS files */
 737         for (i = 0; i < num_bss_configs; i++) {
 738                 struct hostapd_iface *iface;
 739                 char *fname;
 740
 741                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 742                 fname = os_strchr(bss_config[i], ':');
 743                 if (fname == NULL) {
 744                         wpa_printf(MSG_ERROR,
 745                                    "Invalid BSS config identifier '%s'",
 746                                    bss_config[i]);
 747                         goto out;
 748                 }
 749                 *fname++ = '\0';
 750                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 751                                                    fname, debug);
 752                 if (iface == NULL)
 753                         goto out;
 754                 for (j = 0; j < interfaces.count; j++) {
 755                         if (interfaces.iface[j] == iface)
 756                                 break;
 757                 }
 758                 if (j == interfaces.count) {
 759                         struct hostapd_iface **tmp;
 760                         tmp = os_realloc_array(interfaces.iface,
 761                                                interfaces.count + 1,
 762                                                sizeof(struct hostapd_iface *));
 763                         if (tmp == NULL) {
 764                                 hostapd_interface_deinit_free(iface);
 765                                 goto out;
 766                         }
 767                         interfaces.iface = tmp;
 768                         interfaces.iface[interfaces.count++] = iface;
 769                 }
 770         }
 771
 772         /*
 773          * Enable configured interfaces. Depending on channel configuration,
 774          * this may complete full initialization before returning or use a
 775          * callback mechanism to complete setup in case of operations like HT
 776          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 777          * In such case, the interface will be enabled from eloop context within
 778          * hostapd_global_run().
 779          */
 780         interfaces.terminate_on_error = interfaces.count;
 781         for (i = 0; i < interfaces.count; i++) {
 782                 if (hostapd_driver_init(interfaces.iface[i]) ||
 783                     hostapd_setup_interface(interfaces.iface[i]))
 784                         goto out;
 785         }
 786
 787         hostapd_global_ctrl_iface_init(&interfaces);
 788
 789         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 790                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 791                 goto out;
 792         }
 793
 794         ret = 0;
 795
 796  out:
 797         hostapd_global_ctrl_iface_deinit(&interfaces);
 798         /* Deinitialize all interfaces */
 799         for (i = 0; i < interfaces.count; i++) {
 800                 if (!interfaces.iface[i])
 801                         continue;
 802                 interfaces.iface[i]->driver_ap_teardown =
 803                         !!(interfaces.iface[i]->drv_flags &
 804                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 805                 hostapd_interface_deinit_free(interfaces.iface[i]);
 806         }
 807         os_free(interfaces.iface);
 808
 809         eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 810         hostapd_global_deinit(pid_file);
 811         os_free(pid_file);
 812
 813         if (log_file)
 814                 wpa_debug_close_file();
 815         wpa_debug_close_linux_tracing();
 816
 817         os_free(bss_config);
 818
 819         fst_global_deinit();
 820
 821         os_program_deinit();
 822
 823         return ret;
 824 }