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
 343         random_init(entropy_file);
 344
 345 #ifndef CONFIG_NATIVE_WINDOWS
 346         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 347         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 348 #endif /* CONFIG_NATIVE_WINDOWS */
 349         eloop_register_signal_terminate(handle_term, interfaces);
 350
 351 #ifndef CONFIG_NATIVE_WINDOWS
 352         openlog("hostapd", 0, LOG_DAEMON);
 353 #endif /* CONFIG_NATIVE_WINDOWS */
 354
 355         for (i = 0; wpa_drivers[i]; i++)
 356                 global.drv_count++;
 357         if (global.drv_count == 0) {
 358                 wpa_printf(MSG_ERROR, "No drivers enabled");
 359                 return -1;
 360         }
 361         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 362         if (global.drv_priv == NULL)
 363                 return -1;
 364
 365         return 0;
 366 }
 367
 368
 369 static void hostapd_global_deinit(const char *pid_file)
 370 {
 371         int i;
 372
 373         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 374                 if (!global.drv_priv[i])
 375                         continue;
 376                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 377         }
 378         os_free(global.drv_priv);
 379         global.drv_priv = NULL;
 380
 381 #ifdef EAP_SERVER_TNC
 382         tncs_global_deinit();
 383 #endif /* EAP_SERVER_TNC */
 384
 385         random_deinit();
 386
 387         eloop_destroy();
 388
 389 #ifndef CONFIG_NATIVE_WINDOWS
 390         closelog();
 391 #endif /* CONFIG_NATIVE_WINDOWS */
 392
 393         eap_server_unregister_methods();
 394
 395         os_daemonize_terminate(pid_file);
 396 }
 397
 398
 399 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 400                               const char *pid_file)
 401 {
 402 #ifdef EAP_SERVER_TNC
 403         int tnc = 0;
 404         size_t i, k;
 405
 406         for (i = 0; !tnc && i < ifaces->count; i++) {
 407                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 408                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 409                                 tnc++;
 410                                 break;
 411                         }
 412                 }
 413         }
 414
 415         if (tnc && tncs_global_init() < 0) {
 416                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 417                 return -1;
 418         }
 419 #endif /* EAP_SERVER_TNC */
 420
 421         if (daemonize) {
 422                 if (os_daemonize(pid_file)) {
 423                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 424                         return -1;
 425                 }
 426                 if (eloop_sock_requeue()) {
 427                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 428                                    strerror(errno));
 429                         return -1;
 430                 }
 431         }
 432
 433         eloop_run();
 434
 435         return 0;
 436 }
 437
 438
 439 static void show_version(void)
 440 {
 441         fprintf(stderr,
 442                 "hostapd v" VERSION_STR "\n"
 443                 "User space daemon for IEEE 802.11 AP management,\n"
 444                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 445                 "Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> "
 446                 "and contributors\n");
 447 }
 448
 449
 450 static void usage(void)
 451 {
 452         show_version();
 453         fprintf(stderr,
 454                 "\n"
 455                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 456                 "\\\n"
 457                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
 458                 "         <configuration file(s)>\n"
 459                 "\n"
 460                 "options:\n"
 461                 "   -h   show this usage\n"
 462                 "   -d   show more debug messages (-dd for even more)\n"
 463                 "   -B   run daemon in the background\n"
 464                 "   -e   entropy file\n"
 465                 "   -g   global control interface path\n"
 466                 "   -G   group for control interfaces\n"
 467                 "   -P   PID file\n"
 468                 "   -K   include key data in debug messages\n"
 469 #ifdef CONFIG_DEBUG_FILE
 470                 "   -f   log output to debug file instead of stdout\n"
 471 #endif /* CONFIG_DEBUG_FILE */
 472 #ifdef CONFIG_DEBUG_LINUX_TRACING
 473                 "   -T = record to Linux tracing in addition to logging\n"
 474                 "        (records all messages regardless of debug verbosity)\n"
 475 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 476                 "   -S   start all the interfaces synchronously\n"
 477                 "   -t   include timestamps in some debug messages\n"
 478                 "   -v   show hostapd version\n");
 479
 480         exit(1);
 481 }
 482
 483
 484 static const char * hostapd_msg_ifname_cb(void *ctx)
 485 {
 486         struct hostapd_data *hapd = ctx;
 487         if (hapd && hapd->conf)
 488                 return hapd->conf->iface;
 489         return NULL;
 490 }
 491
 492
 493 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 494                                          const char *path)
 495 {
 496 #ifndef CONFIG_CTRL_IFACE_UDP
 497         char *pos;
 498 #endif /* !CONFIG_CTRL_IFACE_UDP */
 499
 500         os_free(interfaces->global_iface_path);
 501         interfaces->global_iface_path = os_strdup(path);
 502         if (interfaces->global_iface_path == NULL)
 503                 return -1;
 504
 505 #ifndef CONFIG_CTRL_IFACE_UDP
 506         pos = os_strrchr(interfaces->global_iface_path, '/');
 507         if (pos == NULL) {
 508                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 509                            "file");
 510                 os_free(interfaces->global_iface_path);
 511                 interfaces->global_iface_path = NULL;
 512                 return -1;
 513         }
 514
 515         *pos = '\0';
 516         interfaces->global_iface_name = pos + 1;
 517 #endif /* !CONFIG_CTRL_IFACE_UDP */
 518
 519         return 0;
 520 }
 521
 522
 523 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 524                                         const char *group)
 525 {
 526 #ifndef CONFIG_NATIVE_WINDOWS
 527         struct group *grp;
 528         grp = getgrnam(group);
 529         if (grp == NULL) {
 530                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 531                 return -1;
 532         }
 533         interfaces->ctrl_iface_group = grp->gr_gid;
 534 #endif /* CONFIG_NATIVE_WINDOWS */
 535         return 0;
 536 }
 537
 538
 539 #ifdef CONFIG_WPS
 540 static int gen_uuid(const char *txt_addr)
 541 {
 542         u8 addr[ETH_ALEN];
 543         u8 uuid[UUID_LEN];
 544         char buf[100];
 545
 546         if (hwaddr_aton(txt_addr, addr) < 0)
 547                 return -1;
 548
 549         uuid_gen_mac_addr(addr, uuid);
 550         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 551                 return -1;
 552
 553         printf("%s\n", buf);
 554
 555         return 0;
 556 }
 557 #endif /* CONFIG_WPS */
 558
 559
 560 #ifndef HOSTAPD_CLEANUP_INTERVAL
 561 #define HOSTAPD_CLEANUP_INTERVAL 10
 562 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 563
 564 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 565 {
 566         hostapd_periodic_iface(iface);
 567         return 0;
 568 }
 569
 570
 571 /* Periodic cleanup tasks */
 572 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 573 {
 574         struct hapd_interfaces *interfaces = eloop_ctx;
 575
 576         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 577                                hostapd_periodic, interfaces, NULL);
 578         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 579 }
 580
 581
 582 int main(int argc, char *argv[])
 583 {
 584         struct hapd_interfaces interfaces;
 585         int ret = 1;
 586         size_t i, j;
 587         int c, debug = 0, daemonize = 0;
 588         char *pid_file = NULL;
 589         const char *log_file = NULL;
 590         const char *entropy_file = NULL;
 591         char **bss_config = NULL, **tmp_bss;
 592         size_t num_bss_configs = 0;
 593 #ifdef CONFIG_DEBUG_LINUX_TRACING
 594         int enable_trace_dbg = 0;
 595 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 596         int start_ifaces_in_sync = 0;
 597
 598         if (os_program_init())
 599                 return -1;
 600
 601         os_memset(&interfaces, 0, sizeof(interfaces));
 602         interfaces.reload_config = hostapd_reload_config;
 603         interfaces.config_read_cb = hostapd_config_read;
 604         interfaces.for_each_interface = hostapd_for_each_interface;
 605         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 606         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 607         interfaces.driver_init = hostapd_driver_init;
 608         interfaces.global_iface_path = NULL;
 609         interfaces.global_iface_name = NULL;
 610         interfaces.global_ctrl_sock = -1;
 611         dl_list_init(&interfaces.global_ctrl_dst);
 612
 613         for (;;) {
 614                 c = getopt(argc, argv, "b:Bde:f:hKP:STtu:vg:G:");
 615                 if (c < 0)
 616                         break;
 617                 switch (c) {
 618                 case 'h':
 619                         usage();
 620                         break;
 621                 case 'd':
 622                         debug++;
 623                         if (wpa_debug_level > 0)
 624                                 wpa_debug_level--;
 625                         break;
 626                 case 'B':
 627                         daemonize++;
 628                         break;
 629                 case 'e':
 630                         entropy_file = optarg;
 631                         break;
 632                 case 'f':
 633                         log_file = optarg;
 634                         break;
 635                 case 'K':
 636                         wpa_debug_show_keys++;
 637                         break;
 638                 case 'P':
 639                         os_free(pid_file);
 640                         pid_file = os_rel2abs_path(optarg);
 641                         break;
 642                 case 't':
 643                         wpa_debug_timestamp++;
 644                         break;
 645 #ifdef CONFIG_DEBUG_LINUX_TRACING
 646                 case 'T':
 647                         enable_trace_dbg = 1;
 648                         break;
 649 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 650                 case 'v':
 651                         show_version();
 652                         exit(1);
 653                         break;
 654                 case 'g':
 655                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 656                                 return -1;
 657                         break;
 658                 case 'G':
 659                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 660                                 return -1;
 661                         break;
 662                 case 'b':
 663                         tmp_bss = os_realloc_array(bss_config,
 664                                                    num_bss_configs + 1,
 665                                                    sizeof(char *));
 666                         if (tmp_bss == NULL)
 667                                 goto out;
 668                         bss_config = tmp_bss;
 669                         bss_config[num_bss_configs++] = optarg;
 670                         break;
 671                 case 'S':
 672                         start_ifaces_in_sync = 1;
 673                         break;
 674 #ifdef CONFIG_WPS
 675                 case 'u':
 676                         return gen_uuid(optarg);
 677 #endif /* CONFIG_WPS */
 678                 default:
 679                         usage();
 680                         break;
 681                 }
 682         }
 683
 684         if (optind == argc && interfaces.global_iface_path == NULL &&
 685             num_bss_configs == 0)
 686                 usage();
 687
 688         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 689
 690         if (log_file)
 691                 wpa_debug_open_file(log_file);
 692         else
 693                 wpa_debug_setup_stdout();
 694 #ifdef CONFIG_DEBUG_LINUX_TRACING
 695         if (enable_trace_dbg) {
 696                 int tret = wpa_debug_open_linux_tracing();
 697                 if (tret) {
 698                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 699                         return -1;
 700                 }
 701         }
 702 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 703
 704         interfaces.count = argc - optind;
 705         if (interfaces.count || num_bss_configs) {
 706                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 707                                              sizeof(struct hostapd_iface *));
 708                 if (interfaces.iface == NULL) {
 709                         wpa_printf(MSG_ERROR, "malloc failed");
 710                         return -1;
 711                 }
 712         }
 713
 714         if (hostapd_global_init(&interfaces, entropy_file)) {
 715                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 716                 return -1;
 717         }
 718
 719         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 720                                hostapd_periodic, &interfaces, NULL);
 721
 722         if (fst_global_init()) {
 723                 wpa_printf(MSG_ERROR,
 724                            "Failed to initialize global FST context");
 725                 goto out;
 726         }
 727
 728 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 729         if (!fst_global_add_ctrl(fst_ctrl_cli))
 730                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 731 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 732
 733         /* Allocate and parse configuration for full interface files */
 734         for (i = 0; i < interfaces.count; i++) {
 735                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 736                                                              argv[optind + i],
 737                                                              debug);
 738                 if (!interfaces.iface[i]) {
 739                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 740                         goto out;
 741                 }
 742                 if (start_ifaces_in_sync)
 743                         interfaces.iface[i]->need_to_start_in_sync = 1;
 744         }
 745
 746         /* Allocate and parse configuration for per-BSS files */
 747         for (i = 0; i < num_bss_configs; i++) {
 748                 struct hostapd_iface *iface;
 749                 char *fname;
 750
 751                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 752                 fname = os_strchr(bss_config[i], ':');
 753                 if (fname == NULL) {
 754                         wpa_printf(MSG_ERROR,
 755                                    "Invalid BSS config identifier '%s'",
 756                                    bss_config[i]);
 757                         goto out;
 758                 }
 759                 *fname++ = '\0';
 760                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 761                                                    fname, debug);
 762                 if (iface == NULL)
 763                         goto out;
 764                 for (j = 0; j < interfaces.count; j++) {
 765                         if (interfaces.iface[j] == iface)
 766                                 break;
 767                 }
 768                 if (j == interfaces.count) {
 769                         struct hostapd_iface **tmp;
 770                         tmp = os_realloc_array(interfaces.iface,
 771                                                interfaces.count + 1,
 772                                                sizeof(struct hostapd_iface *));
 773                         if (tmp == NULL) {
 774                                 hostapd_interface_deinit_free(iface);
 775                                 goto out;
 776                         }
 777                         interfaces.iface = tmp;
 778                         interfaces.iface[interfaces.count++] = iface;
 779                 }
 780         }
 781
 782         /*
 783          * Enable configured interfaces. Depending on channel configuration,
 784          * this may complete full initialization before returning or use a
 785          * callback mechanism to complete setup in case of operations like HT
 786          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 787          * In such case, the interface will be enabled from eloop context within
 788          * hostapd_global_run().
 789          */
 790         interfaces.terminate_on_error = interfaces.count;
 791         for (i = 0; i < interfaces.count; i++) {
 792                 if (hostapd_driver_init(interfaces.iface[i]) ||
 793                     hostapd_setup_interface(interfaces.iface[i]))
 794                         goto out;
 795         }
 796
 797         hostapd_global_ctrl_iface_init(&interfaces);
 798
 799         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 800                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 801                 goto out;
 802         }
 803
 804         ret = 0;
 805
 806  out:
 807         hostapd_global_ctrl_iface_deinit(&interfaces);
 808         /* Deinitialize all interfaces */
 809         for (i = 0; i < interfaces.count; i++) {
 810                 if (!interfaces.iface[i])
 811                         continue;
 812                 interfaces.iface[i]->driver_ap_teardown =
 813                         !!(interfaces.iface[i]->drv_flags &
 814                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 815                 hostapd_interface_deinit_free(interfaces.iface[i]);
 816         }
 817         os_free(interfaces.iface);
 818
 819         eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 820         hostapd_global_deinit(pid_file);
 821         os_free(pid_file);
 822
 823         if (log_file)
 824                 wpa_debug_close_file();
 825         wpa_debug_close_linux_tracing();
 826
 827         os_free(bss_config);
 828
 829         fst_global_deinit();
 830
 831         os_program_deinit();
 832
 833         return ret;
 834 }