hostapd/main.c

   1 /*
   2  * hostapd / main()
   3  * Copyright (c) 2002-2017, 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 #ifdef CONFIG_DEBUG_SYSLOG
 112         if (wpa_debug_syslog)
 113                 conf_stdout = 0;
 114 #endif /* CONFIG_DEBUG_SYSLOG */
 115         if ((conf_stdout & module) && level >= conf_stdout_level) {
 116                 wpa_debug_print_timestamp();
 117                 wpa_printf(MSG_INFO, "%s", format);
 118         }
 119
 120 #ifndef CONFIG_NATIVE_WINDOWS
 121         if ((conf_syslog & module) && level >= conf_syslog_level) {
 122                 int priority;
 123                 switch (level) {
 124                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 125                 case HOSTAPD_LEVEL_DEBUG:
 126                         priority = LOG_DEBUG;
 127                         break;
 128                 case HOSTAPD_LEVEL_INFO:
 129                         priority = LOG_INFO;
 130                         break;
 131                 case HOSTAPD_LEVEL_NOTICE:
 132                         priority = LOG_NOTICE;
 133                         break;
 134                 case HOSTAPD_LEVEL_WARNING:
 135                         priority = LOG_WARNING;
 136                         break;
 137                 default:
 138                         priority = LOG_INFO;
 139                         break;
 140                 }
 141                 syslog(priority, "%s", format);
 142         }
 143 #endif /* CONFIG_NATIVE_WINDOWS */
 144
 145         os_free(format);
 146 }
 147 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 148
 149
 150 /**
 151  * hostapd_driver_init - Preparate driver interface
 152  */
 153 static int hostapd_driver_init(struct hostapd_iface *iface)
 154 {
 155         struct wpa_init_params params;
 156         size_t i;
 157         struct hostapd_data *hapd = iface->bss[0];
 158         struct hostapd_bss_config *conf = hapd->conf;
 159         u8 *b = conf->bssid;
 160         struct wpa_driver_capa capa;
 161
 162         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 163                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 164                 return -1;
 165         }
 166
 167         /* Initialize the driver interface */
 168         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 169                 b = NULL;
 170
 171         os_memset(&params, 0, sizeof(params));
 172         for (i = 0; wpa_drivers[i]; i++) {
 173                 if (wpa_drivers[i] != hapd->driver)
 174                         continue;
 175
 176                 if (global.drv_priv[i] == NULL &&
 177                     wpa_drivers[i]->global_init) {
 178                         global.drv_priv[i] =
 179                                 wpa_drivers[i]->global_init(iface->interfaces);
 180                         if (global.drv_priv[i] == NULL) {
 181                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 182                                            "driver '%s'",
 183                                            wpa_drivers[i]->name);
 184                                 return -1;
 185                         }
 186                 }
 187
 188                 params.global_priv = global.drv_priv[i];
 189                 break;
 190         }
 191         params.bssid = b;
 192         params.ifname = hapd->conf->iface;
 193         params.driver_params = hapd->iconf->driver_params;
 194         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 195
 196         params.num_bridge = hapd->iface->num_bss;
 197         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 198         if (params.bridge == NULL)
 199                 return -1;
 200         for (i = 0; i < hapd->iface->num_bss; i++) {
 201                 struct hostapd_data *bss = hapd->iface->bss[i];
 202                 if (bss->conf->bridge[0])
 203                         params.bridge[i] = bss->conf->bridge;
 204         }
 205
 206         params.own_addr = hapd->own_addr;
 207
 208         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 209         os_free(params.bridge);
 210         if (hapd->drv_priv == NULL) {
 211                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 212                            hapd->driver->name);
 213                 hapd->driver = NULL;
 214                 return -1;
 215         }
 216
 217         if (hapd->driver->get_capa &&
 218             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 219                 struct wowlan_triggers *triggs;
 220
 221                 iface->drv_flags = capa.flags;
 222                 iface->smps_modes = capa.smps_modes;
 223                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 224                 /*
 225                  * Use default extended capa values from per-radio information
 226                  */
 227                 iface->extended_capa = capa.extended_capa;
 228                 iface->extended_capa_mask = capa.extended_capa_mask;
 229                 iface->extended_capa_len = capa.extended_capa_len;
 230                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 231
 232                 /*
 233                  * Override extended capa with per-interface type (AP), if
 234                  * available from the driver.
 235                  */
 236                 hostapd_get_ext_capa(iface);
 237
 238                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 239                 if (triggs && hapd->driver->set_wowlan) {
 240                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 241                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 242                 }
 243                 os_free(triggs);
 244         }
 245
 246         return 0;
 247 }
 248
 249
 250 /**
 251  * hostapd_interface_init - Read configuration file and init BSS data
 252  *
 253  * This function is used to parse configuration file for a full interface (one
 254  * or more BSSes sharing the same radio) and allocate memory for the BSS
 255  * interfaces. No actiual driver operations are started.
 256  */
 257 static struct hostapd_iface *
 258 hostapd_interface_init(struct hapd_interfaces *interfaces, const char *if_name,
 259                        const char *config_fname, int debug)
 260 {
 261         struct hostapd_iface *iface;
 262         int k;
 263
 264         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 265         iface = hostapd_init(interfaces, config_fname);
 266         if (!iface)
 267                 return NULL;
 268
 269         if (if_name) {
 270                 os_strlcpy(iface->conf->bss[0]->iface, if_name,
 271                            sizeof(iface->conf->bss[0]->iface));
 272         }
 273
 274         iface->interfaces = interfaces;
 275
 276         for (k = 0; k < debug; k++) {
 277                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 278                         iface->bss[0]->conf->logger_stdout_level--;
 279         }
 280
 281         if (iface->conf->bss[0]->iface[0] == '\0' &&
 282             !hostapd_drv_none(iface->bss[0])) {
 283                 wpa_printf(MSG_ERROR,
 284                            "Interface name not specified in %s, nor by '-i' parameter",
 285                            config_fname);
 286                 hostapd_interface_deinit_free(iface);
 287                 return NULL;
 288         }
 289
 290         return iface;
 291 }
 292
 293
 294 /**
 295  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 296  */
 297 static void handle_term(int sig, void *signal_ctx)
 298 {
 299         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 300         eloop_terminate();
 301 }
 302
 303
 304 #ifndef CONFIG_NATIVE_WINDOWS
 305
 306 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 307 {
 308         if (hostapd_reload_config(iface) < 0) {
 309                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 310                            "file - continuing with old.");
 311         }
 312         return 0;
 313 }
 314
 315
 316 /**
 317  * handle_reload - SIGHUP handler to reload configuration
 318  */
 319 static void handle_reload(int sig, void *signal_ctx)
 320 {
 321         struct hapd_interfaces *interfaces = signal_ctx;
 322         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 323                    sig);
 324         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 325 }
 326
 327
 328 static void handle_dump_state(int sig, void *signal_ctx)
 329 {
 330         /* Not used anymore - ignore signal */
 331 }
 332 #endif /* CONFIG_NATIVE_WINDOWS */
 333
 334
 335 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 336                                const char *entropy_file)
 337 {
 338         int i;
 339
 340         os_memset(&global, 0, sizeof(global));
 341
 342         hostapd_logger_register_cb(hostapd_logger_cb);
 343
 344         if (eap_server_register_methods()) {
 345                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 346                 return -1;
 347         }
 348
 349         if (eloop_init()) {
 350                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 351                 return -1;
 352         }
 353         interfaces->eloop_initialized = 1;
 354
 355         random_init(entropy_file);
 356
 357 #ifndef CONFIG_NATIVE_WINDOWS
 358         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 359         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 360 #endif /* CONFIG_NATIVE_WINDOWS */
 361         eloop_register_signal_terminate(handle_term, interfaces);
 362
 363 #ifndef CONFIG_NATIVE_WINDOWS
 364         openlog("hostapd", 0, LOG_DAEMON);
 365 #endif /* CONFIG_NATIVE_WINDOWS */
 366
 367         for (i = 0; wpa_drivers[i]; i++)
 368                 global.drv_count++;
 369         if (global.drv_count == 0) {
 370                 wpa_printf(MSG_ERROR, "No drivers enabled");
 371                 return -1;
 372         }
 373         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 374         if (global.drv_priv == NULL)
 375                 return -1;
 376
 377         return 0;
 378 }
 379
 380
 381 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
 382 {
 383         int i;
 384
 385         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 386                 if (!global.drv_priv[i])
 387                         continue;
 388                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 389         }
 390         os_free(global.drv_priv);
 391         global.drv_priv = NULL;
 392
 393 #ifdef EAP_SERVER_TNC
 394         tncs_global_deinit();
 395 #endif /* EAP_SERVER_TNC */
 396
 397         random_deinit();
 398
 399         if (eloop_initialized)
 400                 eloop_destroy();
 401
 402 #ifndef CONFIG_NATIVE_WINDOWS
 403         closelog();
 404 #endif /* CONFIG_NATIVE_WINDOWS */
 405
 406         eap_server_unregister_methods();
 407
 408         os_daemonize_terminate(pid_file);
 409 }
 410
 411
 412 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 413                               const char *pid_file)
 414 {
 415 #ifdef EAP_SERVER_TNC
 416         int tnc = 0;
 417         size_t i, k;
 418
 419         for (i = 0; !tnc && i < ifaces->count; i++) {
 420                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 421                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 422                                 tnc++;
 423                                 break;
 424                         }
 425                 }
 426         }
 427
 428         if (tnc && tncs_global_init() < 0) {
 429                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 430                 return -1;
 431         }
 432 #endif /* EAP_SERVER_TNC */
 433
 434         if (daemonize) {
 435                 if (os_daemonize(pid_file)) {
 436                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 437                         return -1;
 438                 }
 439                 if (eloop_sock_requeue()) {
 440                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 441                                    strerror(errno));
 442                         return -1;
 443                 }
 444         }
 445
 446         eloop_run();
 447
 448         return 0;
 449 }
 450
 451
 452 static void show_version(void)
 453 {
 454         fprintf(stderr,
 455                 "hostapd v" VERSION_STR "\n"
 456                 "User space daemon for IEEE 802.11 AP management,\n"
 457                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 458                 "Copyright (c) 2002-2017, Jouni Malinen <j@w1.fi> "
 459                 "and contributors\n");
 460 }
 461
 462
 463 static void usage(void)
 464 {
 465         show_version();
 466         fprintf(stderr,
 467                 "\n"
 468                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 469                 "\\\n"
 470                 "         [-g <global ctrl_iface>] [-G <group>]\\\n"
 471                 "         [-i <comma-separated list of interface names>]\\\n"
 472                 "         <configuration file(s)>\n"
 473                 "\n"
 474                 "options:\n"
 475                 "   -h   show this usage\n"
 476                 "   -d   show more debug messages (-dd for even more)\n"
 477                 "   -B   run daemon in the background\n"
 478                 "   -e   entropy file\n"
 479                 "   -g   global control interface path\n"
 480                 "   -G   group for control interfaces\n"
 481                 "   -P   PID file\n"
 482                 "   -K   include key data in debug messages\n"
 483 #ifdef CONFIG_DEBUG_FILE
 484                 "   -f   log output to debug file instead of stdout\n"
 485 #endif /* CONFIG_DEBUG_FILE */
 486 #ifdef CONFIG_DEBUG_LINUX_TRACING
 487                 "   -T   record to Linux tracing in addition to logging\n"
 488                 "        (records all messages regardless of debug verbosity)\n"
 489 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 490                 "   -i   list of interface names to use\n"
 491 #ifdef CONFIG_DEBUG_SYSLOG
 492                 "   -s   log output to syslog instead of stdout\n"
 493 #endif /* CONFIG_DEBUG_SYSLOG */
 494                 "   -S   start all the interfaces synchronously\n"
 495                 "   -t   include timestamps in some debug messages\n"
 496                 "   -v   show hostapd version\n");
 497
 498         exit(1);
 499 }
 500
 501
 502 static const char * hostapd_msg_ifname_cb(void *ctx)
 503 {
 504         struct hostapd_data *hapd = ctx;
 505         if (hapd && hapd->conf)
 506                 return hapd->conf->iface;
 507         return NULL;
 508 }
 509
 510
 511 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 512                                          const char *path)
 513 {
 514 #ifndef CONFIG_CTRL_IFACE_UDP
 515         char *pos;
 516 #endif /* !CONFIG_CTRL_IFACE_UDP */
 517
 518         os_free(interfaces->global_iface_path);
 519         interfaces->global_iface_path = os_strdup(path);
 520         if (interfaces->global_iface_path == NULL)
 521                 return -1;
 522
 523 #ifndef CONFIG_CTRL_IFACE_UDP
 524         pos = os_strrchr(interfaces->global_iface_path, '/');
 525         if (pos == NULL) {
 526                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 527                            "file");
 528                 os_free(interfaces->global_iface_path);
 529                 interfaces->global_iface_path = NULL;
 530                 return -1;
 531         }
 532
 533         *pos = '\0';
 534         interfaces->global_iface_name = pos + 1;
 535 #endif /* !CONFIG_CTRL_IFACE_UDP */
 536
 537         return 0;
 538 }
 539
 540
 541 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 542                                         const char *group)
 543 {
 544 #ifndef CONFIG_NATIVE_WINDOWS
 545         struct group *grp;
 546         grp = getgrnam(group);
 547         if (grp == NULL) {
 548                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 549                 return -1;
 550         }
 551         interfaces->ctrl_iface_group = grp->gr_gid;
 552 #endif /* CONFIG_NATIVE_WINDOWS */
 553         return 0;
 554 }
 555
 556
 557 static int hostapd_get_interface_names(char ***if_names,
 558                                        size_t *if_names_size,
 559                                        char *arg)
 560 {
 561         char *if_name, *tmp, **nnames;
 562         size_t i;
 563
 564         if (!arg)
 565                 return -1;
 566         if_name = strtok_r(arg, ",", &tmp);
 567
 568         while (if_name) {
 569                 nnames = os_realloc_array(*if_names, 1 + *if_names_size,
 570                                           sizeof(char *));
 571                 if (!nnames)
 572                         goto fail;
 573                 *if_names = nnames;
 574
 575                 (*if_names)[*if_names_size] = os_strdup(if_name);
 576                 if (!(*if_names)[*if_names_size])
 577                         goto fail;
 578                 (*if_names_size)++;
 579                 if_name = strtok_r(NULL, ",", &tmp);
 580         }
 581
 582         return 0;
 583
 584 fail:
 585         for (i = 0; i < *if_names_size; i++)
 586                 os_free((*if_names)[i]);
 587         os_free(*if_names);
 588         *if_names = NULL;
 589         *if_names_size = 0;
 590         return -1;
 591 }
 592
 593
 594 #ifdef CONFIG_WPS
 595 static int gen_uuid(const char *txt_addr)
 596 {
 597         u8 addr[ETH_ALEN];
 598         u8 uuid[UUID_LEN];
 599         char buf[100];
 600
 601         if (hwaddr_aton(txt_addr, addr) < 0)
 602                 return -1;
 603
 604         uuid_gen_mac_addr(addr, uuid);
 605         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 606                 return -1;
 607
 608         printf("%s\n", buf);
 609
 610         return 0;
 611 }
 612 #endif /* CONFIG_WPS */
 613
 614
 615 #ifndef HOSTAPD_CLEANUP_INTERVAL
 616 #define HOSTAPD_CLEANUP_INTERVAL 10
 617 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 618
 619 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 620 {
 621         hostapd_periodic_iface(iface);
 622         return 0;
 623 }
 624
 625
 626 /* Periodic cleanup tasks */
 627 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 628 {
 629         struct hapd_interfaces *interfaces = eloop_ctx;
 630
 631         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 632                                hostapd_periodic, interfaces, NULL);
 633         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 634 }
 635
 636
 637 int main(int argc, char *argv[])
 638 {
 639         struct hapd_interfaces interfaces;
 640         int ret = 1;
 641         size_t i, j;
 642         int c, debug = 0, daemonize = 0;
 643         char *pid_file = NULL;
 644         const char *log_file = NULL;
 645         const char *entropy_file = NULL;
 646         char **bss_config = NULL, **tmp_bss;
 647         size_t num_bss_configs = 0;
 648 #ifdef CONFIG_DEBUG_LINUX_TRACING
 649         int enable_trace_dbg = 0;
 650 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 651         int start_ifaces_in_sync = 0;
 652         char **if_names = NULL;
 653         size_t if_names_size = 0;
 654
 655         if (os_program_init())
 656                 return -1;
 657
 658         os_memset(&interfaces, 0, sizeof(interfaces));
 659         interfaces.reload_config = hostapd_reload_config;
 660         interfaces.config_read_cb = hostapd_config_read;
 661         interfaces.for_each_interface = hostapd_for_each_interface;
 662         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 663         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 664         interfaces.driver_init = hostapd_driver_init;
 665         interfaces.global_iface_path = NULL;
 666         interfaces.global_iface_name = NULL;
 667         interfaces.global_ctrl_sock = -1;
 668         dl_list_init(&interfaces.global_ctrl_dst);
 669
 670         for (;;) {
 671                 c = getopt(argc, argv, "b:Bde:f:hi:KP:sSTtu:vg:G:");
 672                 if (c < 0)
 673                         break;
 674                 switch (c) {
 675                 case 'h':
 676                         usage();
 677                         break;
 678                 case 'd':
 679                         debug++;
 680                         if (wpa_debug_level > 0)
 681                                 wpa_debug_level--;
 682                         break;
 683                 case 'B':
 684                         daemonize++;
 685                         break;
 686                 case 'e':
 687                         entropy_file = optarg;
 688                         break;
 689                 case 'f':
 690                         log_file = optarg;
 691                         break;
 692                 case 'K':
 693                         wpa_debug_show_keys++;
 694                         break;
 695                 case 'P':
 696                         os_free(pid_file);
 697                         pid_file = os_rel2abs_path(optarg);
 698                         break;
 699                 case 't':
 700                         wpa_debug_timestamp++;
 701                         break;
 702 #ifdef CONFIG_DEBUG_LINUX_TRACING
 703                 case 'T':
 704                         enable_trace_dbg = 1;
 705                         break;
 706 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 707                 case 'v':
 708                         show_version();
 709                         exit(1);
 710                         break;
 711                 case 'g':
 712                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 713                                 return -1;
 714                         break;
 715                 case 'G':
 716                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 717                                 return -1;
 718                         break;
 719                 case 'b':
 720                         tmp_bss = os_realloc_array(bss_config,
 721                                                    num_bss_configs + 1,
 722                                                    sizeof(char *));
 723                         if (tmp_bss == NULL)
 724                                 goto out;
 725                         bss_config = tmp_bss;
 726                         bss_config[num_bss_configs++] = optarg;
 727                         break;
 728 #ifdef CONFIG_DEBUG_SYSLOG
 729                 case 's':
 730                         wpa_debug_syslog = 1;
 731                         break;
 732 #endif /* CONFIG_DEBUG_SYSLOG */
 733                 case 'S':
 734                         start_ifaces_in_sync = 1;
 735                         break;
 736 #ifdef CONFIG_WPS
 737                 case 'u':
 738                         return gen_uuid(optarg);
 739 #endif /* CONFIG_WPS */
 740                 case 'i':
 741                         if (hostapd_get_interface_names(&if_names,
 742                                                         &if_names_size, optarg))
 743                                 goto out;
 744                         break;
 745                 default:
 746                         usage();
 747                         break;
 748                 }
 749         }
 750
 751         if (optind == argc && interfaces.global_iface_path == NULL &&
 752             num_bss_configs == 0)
 753                 usage();
 754
 755         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 756
 757         if (log_file)
 758                 wpa_debug_open_file(log_file);
 759         else
 760                 wpa_debug_setup_stdout();
 761 #ifdef CONFIG_DEBUG_SYSLOG
 762         if (wpa_debug_syslog)
 763                 wpa_debug_open_syslog();
 764 #endif /* CONFIG_DEBUG_SYSLOG */
 765 #ifdef CONFIG_DEBUG_LINUX_TRACING
 766         if (enable_trace_dbg) {
 767                 int tret = wpa_debug_open_linux_tracing();
 768                 if (tret) {
 769                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 770                         return -1;
 771                 }
 772         }
 773 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 774
 775         interfaces.count = argc - optind;
 776         if (interfaces.count || num_bss_configs) {
 777                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 778                                              sizeof(struct hostapd_iface *));
 779                 if (interfaces.iface == NULL) {
 780                         wpa_printf(MSG_ERROR, "malloc failed");
 781                         return -1;
 782                 }
 783         }
 784
 785         if (hostapd_global_init(&interfaces, entropy_file)) {
 786                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 787                 return -1;
 788         }
 789
 790         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 791                                hostapd_periodic, &interfaces, NULL);
 792
 793         if (fst_global_init()) {
 794                 wpa_printf(MSG_ERROR,
 795                            "Failed to initialize global FST context");
 796                 goto out;
 797         }
 798
 799 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 800         if (!fst_global_add_ctrl(fst_ctrl_cli))
 801                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 802 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 803
 804         /* Allocate and parse configuration for full interface files */
 805         for (i = 0; i < interfaces.count; i++) {
 806                 char *if_name = NULL;
 807
 808                 if (i < if_names_size)
 809                         if_name = if_names[i];
 810
 811                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 812                                                              if_name,
 813                                                              argv[optind + i],
 814                                                              debug);
 815                 if (!interfaces.iface[i]) {
 816                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 817                         goto out;
 818                 }
 819                 if (start_ifaces_in_sync)
 820                         interfaces.iface[i]->need_to_start_in_sync = 1;
 821         }
 822
 823         /* Allocate and parse configuration for per-BSS files */
 824         for (i = 0; i < num_bss_configs; i++) {
 825                 struct hostapd_iface *iface;
 826                 char *fname;
 827
 828                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 829                 fname = os_strchr(bss_config[i], ':');
 830                 if (fname == NULL) {
 831                         wpa_printf(MSG_ERROR,
 832                                    "Invalid BSS config identifier '%s'",
 833                                    bss_config[i]);
 834                         goto out;
 835                 }
 836                 *fname++ = '\0';
 837                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 838                                                    fname, debug);
 839                 if (iface == NULL)
 840                         goto out;
 841                 for (j = 0; j < interfaces.count; j++) {
 842                         if (interfaces.iface[j] == iface)
 843                                 break;
 844                 }
 845                 if (j == interfaces.count) {
 846                         struct hostapd_iface **tmp;
 847                         tmp = os_realloc_array(interfaces.iface,
 848                                                interfaces.count + 1,
 849                                                sizeof(struct hostapd_iface *));
 850                         if (tmp == NULL) {
 851                                 hostapd_interface_deinit_free(iface);
 852                                 goto out;
 853                         }
 854                         interfaces.iface = tmp;
 855                         interfaces.iface[interfaces.count++] = iface;
 856                 }
 857         }
 858
 859         /*
 860          * Enable configured interfaces. Depending on channel configuration,
 861          * this may complete full initialization before returning or use a
 862          * callback mechanism to complete setup in case of operations like HT
 863          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 864          * In such case, the interface will be enabled from eloop context within
 865          * hostapd_global_run().
 866          */
 867         interfaces.terminate_on_error = interfaces.count;
 868         for (i = 0; i < interfaces.count; i++) {
 869                 if (hostapd_driver_init(interfaces.iface[i]) ||
 870                     hostapd_setup_interface(interfaces.iface[i]))
 871                         goto out;
 872         }
 873
 874         hostapd_global_ctrl_iface_init(&interfaces);
 875
 876         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 877                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 878                 goto out;
 879         }
 880
 881         ret = 0;
 882
 883  out:
 884         hostapd_global_ctrl_iface_deinit(&interfaces);
 885         /* Deinitialize all interfaces */
 886         for (i = 0; i < interfaces.count; i++) {
 887                 if (!interfaces.iface[i])
 888                         continue;
 889                 interfaces.iface[i]->driver_ap_teardown =
 890                         !!(interfaces.iface[i]->drv_flags &
 891                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 892                 hostapd_interface_deinit_free(interfaces.iface[i]);
 893         }
 894         os_free(interfaces.iface);
 895
 896         if (interfaces.eloop_initialized)
 897                 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 898         hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
 899         os_free(pid_file);
 900
 901         wpa_debug_close_syslog();
 902         if (log_file)
 903                 wpa_debug_close_file();
 904         wpa_debug_close_linux_tracing();
 905
 906         os_free(bss_config);
 907
 908         for (i = 0; i < if_names_size; i++)
 909                 os_free(if_names[i]);
 910         os_free(if_names);
 911
 912         fst_global_deinit();
 913
 914         os_program_deinit();
 915
 916         return ret;
 917 }