hostapd/main.c

   1 /*
   2  * hostapd / main()
   3  * Copyright (c) 2002-2019, 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 "common/dpp.h"
  22 #include "drivers/driver.h"
  23 #include "eap_server/eap.h"
  24 #include "eap_server/tncs.h"
  25 #include "ap/hostapd.h"
  26 #include "ap/ap_config.h"
  27 #include "ap/ap_drv_ops.h"
  28 #include "ap/dpp_hostapd.h"
  29 #include "fst/fst.h"
  30 #include "config_file.h"
  31 #include "eap_register.h"
  32 #include "ctrl_iface.h"
  33
  34
  35 struct hapd_global {
  36         void **drv_priv;
  37         size_t drv_count;
  38 };
  39
  40 static struct hapd_global global;
  41
  42
  43 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  44 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  45                               int level, const char *txt, size_t len)
  46 {
  47         struct hostapd_data *hapd = ctx;
  48         char *format, *module_str;
  49         int maxlen;
  50         int conf_syslog_level, conf_stdout_level;
  51         unsigned int conf_syslog, conf_stdout;
  52
  53         maxlen = len + 100;
  54         format = os_malloc(maxlen);
  55         if (!format)
  56                 return;
  57
  58         if (hapd && hapd->conf) {
  59                 conf_syslog_level = hapd->conf->logger_syslog_level;
  60                 conf_stdout_level = hapd->conf->logger_stdout_level;
  61                 conf_syslog = hapd->conf->logger_syslog;
  62                 conf_stdout = hapd->conf->logger_stdout;
  63         } else {
  64                 conf_syslog_level = conf_stdout_level = 0;
  65                 conf_syslog = conf_stdout = (unsigned int) -1;
  66         }
  67
  68         switch (module) {
  69         case HOSTAPD_MODULE_IEEE80211:
  70                 module_str = "IEEE 802.11";
  71                 break;
  72         case HOSTAPD_MODULE_IEEE8021X:
  73                 module_str = "IEEE 802.1X";
  74                 break;
  75         case HOSTAPD_MODULE_RADIUS:
  76                 module_str = "RADIUS";
  77                 break;
  78         case HOSTAPD_MODULE_WPA:
  79                 module_str = "WPA";
  80                 break;
  81         case HOSTAPD_MODULE_DRIVER:
  82                 module_str = "DRIVER";
  83                 break;
  84         case HOSTAPD_MODULE_MLME:
  85                 module_str = "MLME";
  86                 break;
  87         default:
  88                 module_str = NULL;
  89                 break;
  90         }
  91
  92         if (hapd && hapd->conf && addr)
  93                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
  94                             hapd->conf->iface, MAC2STR(addr),
  95                             module_str ? " " : "", module_str ? module_str : "",
  96                             txt);
  97         else if (hapd && hapd->conf)
  98                 os_snprintf(format, maxlen, "%s:%s%s %s",
  99                             hapd->conf->iface, module_str ? " " : "",
 100                             module_str ? module_str : "", txt);
 101         else if (addr)
 102                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 103                             MAC2STR(addr), module_str ? " " : "",
 104                             module_str ? module_str : "", txt);
 105         else
 106                 os_snprintf(format, maxlen, "%s%s%s",
 107                             module_str ? module_str : "",
 108                             module_str ? ": " : "", txt);
 109
 110 #ifdef CONFIG_DEBUG_SYSLOG
 111         if (wpa_debug_syslog)
 112                 conf_stdout = 0;
 113 #endif /* CONFIG_DEBUG_SYSLOG */
 114         if ((conf_stdout & module) && level >= conf_stdout_level) {
 115                 wpa_debug_print_timestamp();
 116                 wpa_printf(MSG_INFO, "%s", format);
 117         }
 118
 119 #ifndef CONFIG_NATIVE_WINDOWS
 120         if ((conf_syslog & module) && level >= conf_syslog_level) {
 121                 int priority;
 122                 switch (level) {
 123                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 124                 case HOSTAPD_LEVEL_DEBUG:
 125                         priority = LOG_DEBUG;
 126                         break;
 127                 case HOSTAPD_LEVEL_INFO:
 128                         priority = LOG_INFO;
 129                         break;
 130                 case HOSTAPD_LEVEL_NOTICE:
 131                         priority = LOG_NOTICE;
 132                         break;
 133                 case HOSTAPD_LEVEL_WARNING:
 134                         priority = LOG_WARNING;
 135                         break;
 136                 default:
 137                         priority = LOG_INFO;
 138                         break;
 139                 }
 140                 syslog(priority, "%s", format);
 141         }
 142 #endif /* CONFIG_NATIVE_WINDOWS */
 143
 144         os_free(format);
 145 }
 146 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 147
 148
 149 /**
 150  * hostapd_driver_init - Preparate driver interface
 151  */
 152 static int hostapd_driver_init(struct hostapd_iface *iface)
 153 {
 154         struct wpa_init_params params;
 155         size_t i;
 156         struct hostapd_data *hapd = iface->bss[0];
 157         struct hostapd_bss_config *conf = hapd->conf;
 158         u8 *b = conf->bssid;
 159         struct wpa_driver_capa capa;
 160
 161         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 162                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 163                 return -1;
 164         }
 165
 166         /* Initialize the driver interface */
 167         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 168                 b = NULL;
 169
 170         os_memset(&params, 0, sizeof(params));
 171         for (i = 0; wpa_drivers[i]; i++) {
 172                 if (wpa_drivers[i] != hapd->driver)
 173                         continue;
 174
 175                 if (global.drv_priv[i] == NULL &&
 176                     wpa_drivers[i]->global_init) {
 177                         global.drv_priv[i] =
 178                                 wpa_drivers[i]->global_init(iface->interfaces);
 179                         if (global.drv_priv[i] == NULL) {
 180                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 181                                            "driver '%s'",
 182                                            wpa_drivers[i]->name);
 183                                 return -1;
 184                         }
 185                 }
 186
 187                 params.global_priv = global.drv_priv[i];
 188                 break;
 189         }
 190         params.bssid = b;
 191         params.ifname = hapd->conf->iface;
 192         params.driver_params = hapd->iconf->driver_params;
 193         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 194
 195         params.num_bridge = hapd->iface->num_bss;
 196         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 197         if (params.bridge == NULL)
 198                 return -1;
 199         for (i = 0; i < hapd->iface->num_bss; i++) {
 200                 struct hostapd_data *bss = hapd->iface->bss[i];
 201                 if (bss->conf->bridge[0])
 202                         params.bridge[i] = bss->conf->bridge;
 203         }
 204
 205         params.own_addr = hapd->own_addr;
 206
 207         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 208         os_free(params.bridge);
 209         if (hapd->drv_priv == NULL) {
 210                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 211                            hapd->driver->name);
 212                 hapd->driver = NULL;
 213                 return -1;
 214         }
 215
 216         if (hapd->driver->get_capa &&
 217             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 218                 struct wowlan_triggers *triggs;
 219
 220                 iface->drv_flags = capa.flags;
 221                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 222                 /*
 223                  * Use default extended capa values from per-radio information
 224                  */
 225                 iface->extended_capa = capa.extended_capa;
 226                 iface->extended_capa_mask = capa.extended_capa_mask;
 227                 iface->extended_capa_len = capa.extended_capa_len;
 228                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 229
 230                 /*
 231                  * Override extended capa with per-interface type (AP), if
 232                  * available from the driver.
 233                  */
 234                 hostapd_get_ext_capa(iface);
 235
 236                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 237                 if (triggs && hapd->driver->set_wowlan) {
 238                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 239                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 240                 }
 241                 os_free(triggs);
 242         }
 243
 244         return 0;
 245 }
 246
 247
 248 /**
 249  * hostapd_interface_init - Read configuration file and init BSS data
 250  *
 251  * This function is used to parse configuration file for a full interface (one
 252  * or more BSSes sharing the same radio) and allocate memory for the BSS
 253  * interfaces. No actual driver operations are started.
 254  */
 255 static struct hostapd_iface *
 256 hostapd_interface_init(struct hapd_interfaces *interfaces, const char *if_name,
 257                        const char *config_fname, int debug)
 258 {
 259         struct hostapd_iface *iface;
 260         int k;
 261
 262         wpa_printf(MSG_DEBUG, "Configuration file: %s", config_fname);
 263         iface = hostapd_init(interfaces, config_fname);
 264         if (!iface)
 265                 return NULL;
 266
 267         if (if_name) {
 268                 os_strlcpy(iface->conf->bss[0]->iface, if_name,
 269                            sizeof(iface->conf->bss[0]->iface));
 270         }
 271
 272         iface->interfaces = interfaces;
 273
 274         for (k = 0; k < debug; k++) {
 275                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 276                         iface->bss[0]->conf->logger_stdout_level--;
 277         }
 278
 279         if (iface->conf->bss[0]->iface[0] == '\0' &&
 280             !hostapd_drv_none(iface->bss[0])) {
 281                 wpa_printf(MSG_ERROR,
 282                            "Interface name not specified in %s, nor by '-i' parameter",
 283                            config_fname);
 284                 hostapd_interface_deinit_free(iface);
 285                 return NULL;
 286         }
 287
 288         return iface;
 289 }
 290
 291
 292 /**
 293  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 294  */
 295 static void handle_term(int sig, void *signal_ctx)
 296 {
 297         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 298         eloop_terminate();
 299 }
 300
 301
 302 #ifndef CONFIG_NATIVE_WINDOWS
 303
 304 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 305 {
 306         if (hostapd_reload_config(iface) < 0) {
 307                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 308                            "file - continuing with old.");
 309         }
 310         return 0;
 311 }
 312
 313
 314 /**
 315  * handle_reload - SIGHUP handler to reload configuration
 316  */
 317 static void handle_reload(int sig, void *signal_ctx)
 318 {
 319         struct hapd_interfaces *interfaces = signal_ctx;
 320         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 321                    sig);
 322         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 323 }
 324
 325
 326 static void handle_dump_state(int sig, void *signal_ctx)
 327 {
 328         /* Not used anymore - ignore signal */
 329 }
 330 #endif /* CONFIG_NATIVE_WINDOWS */
 331
 332
 333 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 334                                const char *entropy_file)
 335 {
 336         int i;
 337
 338         os_memset(&global, 0, sizeof(global));
 339
 340         hostapd_logger_register_cb(hostapd_logger_cb);
 341
 342         if (eap_server_register_methods()) {
 343                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 344                 return -1;
 345         }
 346
 347         if (eloop_init()) {
 348                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 349                 return -1;
 350         }
 351         interfaces->eloop_initialized = 1;
 352
 353         random_init(entropy_file);
 354
 355 #ifndef CONFIG_NATIVE_WINDOWS
 356         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 357         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 358 #endif /* CONFIG_NATIVE_WINDOWS */
 359         eloop_register_signal_terminate(handle_term, interfaces);
 360
 361 #ifndef CONFIG_NATIVE_WINDOWS
 362         openlog("hostapd", 0, LOG_DAEMON);
 363 #endif /* CONFIG_NATIVE_WINDOWS */
 364
 365         for (i = 0; wpa_drivers[i]; i++)
 366                 global.drv_count++;
 367         if (global.drv_count == 0) {
 368                 wpa_printf(MSG_ERROR, "No drivers enabled");
 369                 return -1;
 370         }
 371         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 372         if (global.drv_priv == NULL)
 373                 return -1;
 374
 375         return 0;
 376 }
 377
 378
 379 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
 380 {
 381         int i;
 382
 383         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 384                 if (!global.drv_priv[i])
 385                         continue;
 386                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 387         }
 388         os_free(global.drv_priv);
 389         global.drv_priv = NULL;
 390
 391 #ifdef EAP_SERVER_TNC
 392         tncs_global_deinit();
 393 #endif /* EAP_SERVER_TNC */
 394
 395         random_deinit();
 396
 397         if (eloop_initialized)
 398                 eloop_destroy();
 399
 400 #ifndef CONFIG_NATIVE_WINDOWS
 401         closelog();
 402 #endif /* CONFIG_NATIVE_WINDOWS */
 403
 404         eap_server_unregister_methods();
 405
 406         os_daemonize_terminate(pid_file);
 407 }
 408
 409
 410 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 411                               const char *pid_file)
 412 {
 413 #ifdef EAP_SERVER_TNC
 414         int tnc = 0;
 415         size_t i, k;
 416
 417         for (i = 0; !tnc && i < ifaces->count; i++) {
 418                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 419                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 420                                 tnc++;
 421                                 break;
 422                         }
 423                 }
 424         }
 425
 426         if (tnc && tncs_global_init() < 0) {
 427                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 428                 return -1;
 429         }
 430 #endif /* EAP_SERVER_TNC */
 431
 432         if (daemonize) {
 433                 if (os_daemonize(pid_file)) {
 434                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 435                         return -1;
 436                 }
 437                 if (eloop_sock_requeue()) {
 438                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 439                                    strerror(errno));
 440                         return -1;
 441                 }
 442         }
 443
 444         eloop_run();
 445
 446         return 0;
 447 }
 448
 449
 450 static void show_version(void)
 451 {
 452         fprintf(stderr,
 453                 "hostapd v%s\n"
 454                 "User space daemon for IEEE 802.11 AP management,\n"
 455                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 456                 "Copyright (c) 2002-2019, Jouni Malinen <j@w1.fi> "
 457                 "and contributors\n",
 458                 VERSION_STR);
 459 }
 460
 461
 462 static void usage(void)
 463 {
 464         show_version();
 465         fprintf(stderr,
 466                 "\n"
 467                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 468                 "\\\n"
 469                 "         [-g <global ctrl_iface>] [-G <group>]\\\n"
 470                 "         [-i <comma-separated list of interface names>]\\\n"
 471                 "         <configuration file(s)>\n"
 472                 "\n"
 473                 "options:\n"
 474                 "   -h   show this usage\n"
 475                 "   -d   show more debug messages (-dd for even more)\n"
 476                 "   -B   run daemon in the background\n"
 477                 "   -e   entropy file\n"
 478                 "   -g   global control interface path\n"
 479                 "   -G   group for control interfaces\n"
 480                 "   -P   PID file\n"
 481                 "   -K   include key data in debug messages\n"
 482 #ifdef CONFIG_DEBUG_FILE
 483                 "   -f   log output to debug file instead of stdout\n"
 484 #endif /* CONFIG_DEBUG_FILE */
 485 #ifdef CONFIG_DEBUG_LINUX_TRACING
 486                 "   -T   record to Linux tracing in addition to logging\n"
 487                 "        (records all messages regardless of debug verbosity)\n"
 488 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 489                 "   -i   list of interface names to use\n"
 490 #ifdef CONFIG_DEBUG_SYSLOG
 491                 "   -s   log output to syslog instead of stdout\n"
 492 #endif /* CONFIG_DEBUG_SYSLOG */
 493                 "   -S   start all the interfaces synchronously\n"
 494                 "   -t   include timestamps in some debug messages\n"
 495                 "   -v   show hostapd version\n");
 496
 497         exit(1);
 498 }
 499
 500
 501 static const char * hostapd_msg_ifname_cb(void *ctx)
 502 {
 503         struct hostapd_data *hapd = ctx;
 504         if (hapd && hapd->conf)
 505                 return hapd->conf->iface;
 506         return NULL;
 507 }
 508
 509
 510 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 511                                          const char *path)
 512 {
 513 #ifndef CONFIG_CTRL_IFACE_UDP
 514         char *pos;
 515 #endif /* !CONFIG_CTRL_IFACE_UDP */
 516
 517         os_free(interfaces->global_iface_path);
 518         interfaces->global_iface_path = os_strdup(path);
 519         if (interfaces->global_iface_path == NULL)
 520                 return -1;
 521
 522 #ifndef CONFIG_CTRL_IFACE_UDP
 523         pos = os_strrchr(interfaces->global_iface_path, '/');
 524         if (pos == NULL) {
 525                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 526                            "file");
 527                 os_free(interfaces->global_iface_path);
 528                 interfaces->global_iface_path = NULL;
 529                 return -1;
 530         }
 531
 532         *pos = '\0';
 533         interfaces->global_iface_name = pos + 1;
 534 #endif /* !CONFIG_CTRL_IFACE_UDP */
 535
 536         return 0;
 537 }
 538
 539
 540 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 541                                         const char *group)
 542 {
 543 #ifndef CONFIG_NATIVE_WINDOWS
 544         struct group *grp;
 545         grp = getgrnam(group);
 546         if (grp == NULL) {
 547                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 548                 return -1;
 549         }
 550         interfaces->ctrl_iface_group = grp->gr_gid;
 551 #endif /* CONFIG_NATIVE_WINDOWS */
 552         return 0;
 553 }
 554
 555
 556 static int hostapd_get_interface_names(char ***if_names,
 557                                        size_t *if_names_size,
 558                                        char *arg)
 559 {
 560         char *if_name, *tmp, **nnames;
 561         size_t i;
 562
 563         if (!arg)
 564                 return -1;
 565         if_name = strtok_r(arg, ",", &tmp);
 566
 567         while (if_name) {
 568                 nnames = os_realloc_array(*if_names, 1 + *if_names_size,
 569                                           sizeof(char *));
 570                 if (!nnames)
 571                         goto fail;
 572                 *if_names = nnames;
 573
 574                 (*if_names)[*if_names_size] = os_strdup(if_name);
 575                 if (!(*if_names)[*if_names_size])
 576                         goto fail;
 577                 (*if_names_size)++;
 578                 if_name = strtok_r(NULL, ",", &tmp);
 579         }
 580
 581         return 0;
 582
 583 fail:
 584         for (i = 0; i < *if_names_size; i++)
 585                 os_free((*if_names)[i]);
 586         os_free(*if_names);
 587         *if_names = NULL;
 588         *if_names_size = 0;
 589         return -1;
 590 }
 591
 592
 593 #ifdef CONFIG_WPS
 594 static int gen_uuid(const char *txt_addr)
 595 {
 596         u8 addr[ETH_ALEN];
 597         u8 uuid[UUID_LEN];
 598         char buf[100];
 599
 600         if (hwaddr_aton(txt_addr, addr) < 0)
 601                 return -1;
 602
 603         uuid_gen_mac_addr(addr, uuid);
 604         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 605                 return -1;
 606
 607         printf("%s\n", buf);
 608
 609         return 0;
 610 }
 611 #endif /* CONFIG_WPS */
 612
 613
 614 #ifndef HOSTAPD_CLEANUP_INTERVAL
 615 #define HOSTAPD_CLEANUP_INTERVAL 10
 616 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 617
 618 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 619 {
 620         hostapd_periodic_iface(iface);
 621         return 0;
 622 }
 623
 624
 625 /* Periodic cleanup tasks */
 626 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 627 {
 628         struct hapd_interfaces *interfaces = eloop_ctx;
 629
 630         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 631                                hostapd_periodic, interfaces, NULL);
 632         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 633 }
 634
 635
 636 int main(int argc, char *argv[])
 637 {
 638         struct hapd_interfaces interfaces;
 639         int ret = 1;
 640         size_t i, j;
 641         int c, debug = 0, daemonize = 0;
 642         char *pid_file = NULL;
 643         const char *log_file = NULL;
 644         const char *entropy_file = NULL;
 645         char **bss_config = NULL, **tmp_bss;
 646         size_t num_bss_configs = 0;
 647 #ifdef CONFIG_DEBUG_LINUX_TRACING
 648         int enable_trace_dbg = 0;
 649 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 650         int start_ifaces_in_sync = 0;
 651         char **if_names = NULL;
 652         size_t if_names_size = 0;
 653 #ifdef CONFIG_DPP
 654         struct dpp_global_config dpp_conf;
 655 #endif /* CONFIG_DPP */
 656
 657         if (os_program_init())
 658                 return -1;
 659
 660         os_memset(&interfaces, 0, sizeof(interfaces));
 661         interfaces.reload_config = hostapd_reload_config;
 662         interfaces.config_read_cb = hostapd_config_read;
 663         interfaces.for_each_interface = hostapd_for_each_interface;
 664         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 665         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 666         interfaces.driver_init = hostapd_driver_init;
 667         interfaces.global_iface_path = NULL;
 668         interfaces.global_iface_name = NULL;
 669         interfaces.global_ctrl_sock = -1;
 670         dl_list_init(&interfaces.global_ctrl_dst);
 671 #ifdef CONFIG_ETH_P_OUI
 672         dl_list_init(&interfaces.eth_p_oui);
 673 #endif /* CONFIG_ETH_P_OUI */
 674 #ifdef CONFIG_DPP
 675         os_memset(&dpp_conf, 0, sizeof(dpp_conf));
 676         /* TODO: dpp_conf.msg_ctx? */
 677         interfaces.dpp = dpp_global_init(&dpp_conf);
 678         if (!interfaces.dpp)
 679                 return -1;
 680 #endif /* CONFIG_DPP */
 681
 682         for (;;) {
 683                 c = getopt(argc, argv, "b:Bde:f:hi:KP:sSTtu:vg:G:");
 684                 if (c < 0)
 685                         break;
 686                 switch (c) {
 687                 case 'h':
 688                         usage();
 689                         break;
 690                 case 'd':
 691                         debug++;
 692                         if (wpa_debug_level > 0)
 693                                 wpa_debug_level--;
 694                         break;
 695                 case 'B':
 696                         daemonize++;
 697                         break;
 698                 case 'e':
 699                         entropy_file = optarg;
 700                         break;
 701                 case 'f':
 702                         log_file = optarg;
 703                         break;
 704                 case 'K':
 705                         wpa_debug_show_keys++;
 706                         break;
 707                 case 'P':
 708                         os_free(pid_file);
 709                         pid_file = os_rel2abs_path(optarg);
 710                         break;
 711                 case 't':
 712                         wpa_debug_timestamp++;
 713                         break;
 714 #ifdef CONFIG_DEBUG_LINUX_TRACING
 715                 case 'T':
 716                         enable_trace_dbg = 1;
 717                         break;
 718 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 719                 case 'v':
 720                         show_version();
 721                         exit(1);
 722                         break;
 723                 case 'g':
 724                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 725                                 return -1;
 726                         break;
 727                 case 'G':
 728                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 729                                 return -1;
 730                         break;
 731                 case 'b':
 732                         tmp_bss = os_realloc_array(bss_config,
 733                                                    num_bss_configs + 1,
 734                                                    sizeof(char *));
 735                         if (tmp_bss == NULL)
 736                                 goto out;
 737                         bss_config = tmp_bss;
 738                         bss_config[num_bss_configs++] = optarg;
 739                         break;
 740 #ifdef CONFIG_DEBUG_SYSLOG
 741                 case 's':
 742                         wpa_debug_syslog = 1;
 743                         break;
 744 #endif /* CONFIG_DEBUG_SYSLOG */
 745                 case 'S':
 746                         start_ifaces_in_sync = 1;
 747                         break;
 748 #ifdef CONFIG_WPS
 749                 case 'u':
 750                         return gen_uuid(optarg);
 751 #endif /* CONFIG_WPS */
 752                 case 'i':
 753                         if (hostapd_get_interface_names(&if_names,
 754                                                         &if_names_size, optarg))
 755                                 goto out;
 756                         break;
 757                 default:
 758                         usage();
 759                         break;
 760                 }
 761         }
 762
 763         if (optind == argc && interfaces.global_iface_path == NULL &&
 764             num_bss_configs == 0)
 765                 usage();
 766
 767         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 768
 769         if (log_file)
 770                 wpa_debug_open_file(log_file);
 771         if (!log_file && !wpa_debug_syslog)
 772                 wpa_debug_setup_stdout();
 773 #ifdef CONFIG_DEBUG_SYSLOG
 774         if (wpa_debug_syslog)
 775                 wpa_debug_open_syslog();
 776 #endif /* CONFIG_DEBUG_SYSLOG */
 777 #ifdef CONFIG_DEBUG_LINUX_TRACING
 778         if (enable_trace_dbg) {
 779                 int tret = wpa_debug_open_linux_tracing();
 780                 if (tret) {
 781                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 782                         return -1;
 783                 }
 784         }
 785 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 786
 787         interfaces.count = argc - optind;
 788         if (interfaces.count || num_bss_configs) {
 789                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 790                                              sizeof(struct hostapd_iface *));
 791                 if (interfaces.iface == NULL) {
 792                         wpa_printf(MSG_ERROR, "malloc failed");
 793                         return -1;
 794                 }
 795         }
 796
 797         if (hostapd_global_init(&interfaces, entropy_file)) {
 798                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 799                 return -1;
 800         }
 801
 802         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 803                                hostapd_periodic, &interfaces, NULL);
 804
 805         if (fst_global_init()) {
 806                 wpa_printf(MSG_ERROR,
 807                            "Failed to initialize global FST context");
 808                 goto out;
 809         }
 810
 811 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 812         if (!fst_global_add_ctrl(fst_ctrl_cli))
 813                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 814 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 815
 816         /* Allocate and parse configuration for full interface files */
 817         for (i = 0; i < interfaces.count; i++) {
 818                 char *if_name = NULL;
 819
 820                 if (i < if_names_size)
 821                         if_name = if_names[i];
 822
 823                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 824                                                              if_name,
 825                                                              argv[optind + i],
 826                                                              debug);
 827                 if (!interfaces.iface[i]) {
 828                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 829                         goto out;
 830                 }
 831                 if (start_ifaces_in_sync)
 832                         interfaces.iface[i]->need_to_start_in_sync = 1;
 833         }
 834
 835         /* Allocate and parse configuration for per-BSS files */
 836         for (i = 0; i < num_bss_configs; i++) {
 837                 struct hostapd_iface *iface;
 838                 char *fname;
 839
 840                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 841                 fname = os_strchr(bss_config[i], ':');
 842                 if (fname == NULL) {
 843                         wpa_printf(MSG_ERROR,
 844                                    "Invalid BSS config identifier '%s'",
 845                                    bss_config[i]);
 846                         goto out;
 847                 }
 848                 *fname++ = '\0';
 849                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 850                                                    fname, debug);
 851                 if (iface == NULL)
 852                         goto out;
 853                 for (j = 0; j < interfaces.count; j++) {
 854                         if (interfaces.iface[j] == iface)
 855                                 break;
 856                 }
 857                 if (j == interfaces.count) {
 858                         struct hostapd_iface **tmp;
 859                         tmp = os_realloc_array(interfaces.iface,
 860                                                interfaces.count + 1,
 861                                                sizeof(struct hostapd_iface *));
 862                         if (tmp == NULL) {
 863                                 hostapd_interface_deinit_free(iface);
 864                                 goto out;
 865                         }
 866                         interfaces.iface = tmp;
 867                         interfaces.iface[interfaces.count++] = iface;
 868                 }
 869         }
 870
 871         /*
 872          * Enable configured interfaces. Depending on channel configuration,
 873          * this may complete full initialization before returning or use a
 874          * callback mechanism to complete setup in case of operations like HT
 875          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 876          * In such case, the interface will be enabled from eloop context within
 877          * hostapd_global_run().
 878          */
 879         interfaces.terminate_on_error = interfaces.count;
 880         for (i = 0; i < interfaces.count; i++) {
 881                 if (hostapd_driver_init(interfaces.iface[i]) ||
 882                     hostapd_setup_interface(interfaces.iface[i]))
 883                         goto out;
 884         }
 885
 886         hostapd_global_ctrl_iface_init(&interfaces);
 887
 888         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 889                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 890                 goto out;
 891         }
 892
 893         ret = 0;
 894
 895  out:
 896         hostapd_global_ctrl_iface_deinit(&interfaces);
 897         /* Deinitialize all interfaces */
 898         for (i = 0; i < interfaces.count; i++) {
 899                 if (!interfaces.iface[i])
 900                         continue;
 901                 interfaces.iface[i]->driver_ap_teardown =
 902                         !!(interfaces.iface[i]->drv_flags &
 903                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 904                 hostapd_interface_deinit_free(interfaces.iface[i]);
 905         }
 906         os_free(interfaces.iface);
 907
 908 #ifdef CONFIG_DPP
 909         dpp_global_deinit(interfaces.dpp);
 910 #endif /* CONFIG_DPP */
 911
 912         if (interfaces.eloop_initialized)
 913                 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 914         hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
 915         os_free(pid_file);
 916
 917         wpa_debug_close_syslog();
 918         if (log_file)
 919                 wpa_debug_close_file();
 920         wpa_debug_close_linux_tracing();
 921
 922         os_free(bss_config);
 923
 924         for (i = 0; i < if_names_size; i++)
 925                 os_free(if_names[i]);
 926         os_free(if_names);
 927
 928         fst_global_deinit();
 929
 930         os_program_deinit();
 931
 932         return ret;
 933 }