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, const char *if_name,
 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
 265         if (if_name) {
 266                 os_strlcpy(iface->conf->bss[0]->iface, if_name,
 267                            sizeof(iface->conf->bss[0]->iface));
 268         }
 269
 270         iface->interfaces = interfaces;
 271
 272         for (k = 0; k < debug; k++) {
 273                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 274                         iface->bss[0]->conf->logger_stdout_level--;
 275         }
 276
 277         if (iface->conf->bss[0]->iface[0] == '\0' &&
 278             !hostapd_drv_none(iface->bss[0])) {
 279                 wpa_printf(MSG_ERROR,
 280                            "Interface name not specified in %s, nor by '-i' parameter",
 281                            config_fname);
 282                 hostapd_interface_deinit_free(iface);
 283                 return NULL;
 284         }
 285
 286         return iface;
 287 }
 288
 289
 290 /**
 291  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 292  */
 293 static void handle_term(int sig, void *signal_ctx)
 294 {
 295         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 296         eloop_terminate();
 297 }
 298
 299
 300 #ifndef CONFIG_NATIVE_WINDOWS
 301
 302 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 303 {
 304         if (hostapd_reload_config(iface) < 0) {
 305                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 306                            "file - continuing with old.");
 307         }
 308         return 0;
 309 }
 310
 311
 312 /**
 313  * handle_reload - SIGHUP handler to reload configuration
 314  */
 315 static void handle_reload(int sig, void *signal_ctx)
 316 {
 317         struct hapd_interfaces *interfaces = signal_ctx;
 318         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 319                    sig);
 320         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 321 }
 322
 323
 324 static void handle_dump_state(int sig, void *signal_ctx)
 325 {
 326         /* Not used anymore - ignore signal */
 327 }
 328 #endif /* CONFIG_NATIVE_WINDOWS */
 329
 330
 331 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 332                                const char *entropy_file)
 333 {
 334         int i;
 335
 336         os_memset(&global, 0, sizeof(global));
 337
 338         hostapd_logger_register_cb(hostapd_logger_cb);
 339
 340         if (eap_server_register_methods()) {
 341                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 342                 return -1;
 343         }
 344
 345         if (eloop_init()) {
 346                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 347                 return -1;
 348         }
 349         interfaces->eloop_initialized = 1;
 350
 351         random_init(entropy_file);
 352
 353 #ifndef CONFIG_NATIVE_WINDOWS
 354         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 355         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 356 #endif /* CONFIG_NATIVE_WINDOWS */
 357         eloop_register_signal_terminate(handle_term, interfaces);
 358
 359 #ifndef CONFIG_NATIVE_WINDOWS
 360         openlog("hostapd", 0, LOG_DAEMON);
 361 #endif /* CONFIG_NATIVE_WINDOWS */
 362
 363         for (i = 0; wpa_drivers[i]; i++)
 364                 global.drv_count++;
 365         if (global.drv_count == 0) {
 366                 wpa_printf(MSG_ERROR, "No drivers enabled");
 367                 return -1;
 368         }
 369         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 370         if (global.drv_priv == NULL)
 371                 return -1;
 372
 373         return 0;
 374 }
 375
 376
 377 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
 378 {
 379         int i;
 380
 381         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 382                 if (!global.drv_priv[i])
 383                         continue;
 384                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 385         }
 386         os_free(global.drv_priv);
 387         global.drv_priv = NULL;
 388
 389 #ifdef EAP_SERVER_TNC
 390         tncs_global_deinit();
 391 #endif /* EAP_SERVER_TNC */
 392
 393         random_deinit();
 394
 395         if (eloop_initialized)
 396                 eloop_destroy();
 397
 398 #ifndef CONFIG_NATIVE_WINDOWS
 399         closelog();
 400 #endif /* CONFIG_NATIVE_WINDOWS */
 401
 402         eap_server_unregister_methods();
 403
 404         os_daemonize_terminate(pid_file);
 405 }
 406
 407
 408 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 409                               const char *pid_file)
 410 {
 411 #ifdef EAP_SERVER_TNC
 412         int tnc = 0;
 413         size_t i, k;
 414
 415         for (i = 0; !tnc && i < ifaces->count; i++) {
 416                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 417                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 418                                 tnc++;
 419                                 break;
 420                         }
 421                 }
 422         }
 423
 424         if (tnc && tncs_global_init() < 0) {
 425                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 426                 return -1;
 427         }
 428 #endif /* EAP_SERVER_TNC */
 429
 430         if (daemonize) {
 431                 if (os_daemonize(pid_file)) {
 432                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 433                         return -1;
 434                 }
 435                 if (eloop_sock_requeue()) {
 436                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 437                                    strerror(errno));
 438                         return -1;
 439                 }
 440         }
 441
 442         eloop_run();
 443
 444         return 0;
 445 }
 446
 447
 448 static void show_version(void)
 449 {
 450         fprintf(stderr,
 451                 "hostapd v" VERSION_STR "\n"
 452                 "User space daemon for IEEE 802.11 AP management,\n"
 453                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 454                 "Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> "
 455                 "and contributors\n");
 456 }
 457
 458
 459 static void usage(void)
 460 {
 461         show_version();
 462         fprintf(stderr,
 463                 "\n"
 464                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 465                 "\\\n"
 466                 "         [-g <global ctrl_iface>] [-G <group>]\\\n"
 467                 "         [-i <comma-separated list of interface names>]\\\n"
 468                 "         <configuration file(s)>\n"
 469                 "\n"
 470                 "options:\n"
 471                 "   -h   show this usage\n"
 472                 "   -d   show more debug messages (-dd for even more)\n"
 473                 "   -B   run daemon in the background\n"
 474                 "   -e   entropy file\n"
 475                 "   -g   global control interface path\n"
 476                 "   -G   group for control interfaces\n"
 477                 "   -P   PID file\n"
 478                 "   -K   include key data in debug messages\n"
 479 #ifdef CONFIG_DEBUG_FILE
 480                 "   -f   log output to debug file instead of stdout\n"
 481 #endif /* CONFIG_DEBUG_FILE */
 482 #ifdef CONFIG_DEBUG_LINUX_TRACING
 483                 "   -T   record to Linux tracing in addition to logging\n"
 484                 "        (records all messages regardless of debug verbosity)\n"
 485 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 486                 "   -i   list of interface names to use\n"
 487                 "   -S   start all the interfaces synchronously\n"
 488                 "   -t   include timestamps in some debug messages\n"
 489                 "   -v   show hostapd version\n");
 490
 491         exit(1);
 492 }
 493
 494
 495 static const char * hostapd_msg_ifname_cb(void *ctx)
 496 {
 497         struct hostapd_data *hapd = ctx;
 498         if (hapd && hapd->conf)
 499                 return hapd->conf->iface;
 500         return NULL;
 501 }
 502
 503
 504 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 505                                          const char *path)
 506 {
 507 #ifndef CONFIG_CTRL_IFACE_UDP
 508         char *pos;
 509 #endif /* !CONFIG_CTRL_IFACE_UDP */
 510
 511         os_free(interfaces->global_iface_path);
 512         interfaces->global_iface_path = os_strdup(path);
 513         if (interfaces->global_iface_path == NULL)
 514                 return -1;
 515
 516 #ifndef CONFIG_CTRL_IFACE_UDP
 517         pos = os_strrchr(interfaces->global_iface_path, '/');
 518         if (pos == NULL) {
 519                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 520                            "file");
 521                 os_free(interfaces->global_iface_path);
 522                 interfaces->global_iface_path = NULL;
 523                 return -1;
 524         }
 525
 526         *pos = '\0';
 527         interfaces->global_iface_name = pos + 1;
 528 #endif /* !CONFIG_CTRL_IFACE_UDP */
 529
 530         return 0;
 531 }
 532
 533
 534 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 535                                         const char *group)
 536 {
 537 #ifndef CONFIG_NATIVE_WINDOWS
 538         struct group *grp;
 539         grp = getgrnam(group);
 540         if (grp == NULL) {
 541                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 542                 return -1;
 543         }
 544         interfaces->ctrl_iface_group = grp->gr_gid;
 545 #endif /* CONFIG_NATIVE_WINDOWS */
 546         return 0;
 547 }
 548
 549
 550 static int hostapd_get_interface_names(char ***if_names,
 551                                        size_t *if_names_size,
 552                                        char *arg)
 553 {
 554         char *if_name, *tmp, **nnames;
 555         size_t i;
 556
 557         if (!arg)
 558                 return -1;
 559         if_name = strtok_r(arg, ",", &tmp);
 560
 561         while (if_name) {
 562                 nnames = os_realloc_array(*if_names, 1 + *if_names_size,
 563                                           sizeof(char *));
 564                 if (!nnames)
 565                         goto fail;
 566                 *if_names = nnames;
 567
 568                 (*if_names)[*if_names_size] = os_strdup(if_name);
 569                 if (!(*if_names)[*if_names_size])
 570                         goto fail;
 571                 (*if_names_size)++;
 572                 if_name = strtok_r(NULL, ",", &tmp);
 573         }
 574
 575         return 0;
 576
 577 fail:
 578         for (i = 0; i < *if_names_size; i++)
 579                 os_free((*if_names)[i]);
 580         os_free(*if_names);
 581         *if_names = NULL;
 582         *if_names_size = 0;
 583         return -1;
 584 }
 585
 586
 587 #ifdef CONFIG_WPS
 588 static int gen_uuid(const char *txt_addr)
 589 {
 590         u8 addr[ETH_ALEN];
 591         u8 uuid[UUID_LEN];
 592         char buf[100];
 593
 594         if (hwaddr_aton(txt_addr, addr) < 0)
 595                 return -1;
 596
 597         uuid_gen_mac_addr(addr, uuid);
 598         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 599                 return -1;
 600
 601         printf("%s\n", buf);
 602
 603         return 0;
 604 }
 605 #endif /* CONFIG_WPS */
 606
 607
 608 #ifndef HOSTAPD_CLEANUP_INTERVAL
 609 #define HOSTAPD_CLEANUP_INTERVAL 10
 610 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 611
 612 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 613 {
 614         hostapd_periodic_iface(iface);
 615         return 0;
 616 }
 617
 618
 619 /* Periodic cleanup tasks */
 620 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 621 {
 622         struct hapd_interfaces *interfaces = eloop_ctx;
 623
 624         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 625                                hostapd_periodic, interfaces, NULL);
 626         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 627 }
 628
 629
 630 int main(int argc, char *argv[])
 631 {
 632         struct hapd_interfaces interfaces;
 633         int ret = 1;
 634         size_t i, j;
 635         int c, debug = 0, daemonize = 0;
 636         char *pid_file = NULL;
 637         const char *log_file = NULL;
 638         const char *entropy_file = NULL;
 639         char **bss_config = NULL, **tmp_bss;
 640         size_t num_bss_configs = 0;
 641 #ifdef CONFIG_DEBUG_LINUX_TRACING
 642         int enable_trace_dbg = 0;
 643 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 644         int start_ifaces_in_sync = 0;
 645         char **if_names = NULL;
 646         size_t if_names_size = 0;
 647
 648         if (os_program_init())
 649                 return -1;
 650
 651         os_memset(&interfaces, 0, sizeof(interfaces));
 652         interfaces.reload_config = hostapd_reload_config;
 653         interfaces.config_read_cb = hostapd_config_read;
 654         interfaces.for_each_interface = hostapd_for_each_interface;
 655         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 656         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 657         interfaces.driver_init = hostapd_driver_init;
 658         interfaces.global_iface_path = NULL;
 659         interfaces.global_iface_name = NULL;
 660         interfaces.global_ctrl_sock = -1;
 661         dl_list_init(&interfaces.global_ctrl_dst);
 662
 663         for (;;) {
 664                 c = getopt(argc, argv, "b:Bde:f:hi:KP:STtu:vg:G:");
 665                 if (c < 0)
 666                         break;
 667                 switch (c) {
 668                 case 'h':
 669                         usage();
 670                         break;
 671                 case 'd':
 672                         debug++;
 673                         if (wpa_debug_level > 0)
 674                                 wpa_debug_level--;
 675                         break;
 676                 case 'B':
 677                         daemonize++;
 678                         break;
 679                 case 'e':
 680                         entropy_file = optarg;
 681                         break;
 682                 case 'f':
 683                         log_file = optarg;
 684                         break;
 685                 case 'K':
 686                         wpa_debug_show_keys++;
 687                         break;
 688                 case 'P':
 689                         os_free(pid_file);
 690                         pid_file = os_rel2abs_path(optarg);
 691                         break;
 692                 case 't':
 693                         wpa_debug_timestamp++;
 694                         break;
 695 #ifdef CONFIG_DEBUG_LINUX_TRACING
 696                 case 'T':
 697                         enable_trace_dbg = 1;
 698                         break;
 699 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 700                 case 'v':
 701                         show_version();
 702                         exit(1);
 703                         break;
 704                 case 'g':
 705                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 706                                 return -1;
 707                         break;
 708                 case 'G':
 709                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 710                                 return -1;
 711                         break;
 712                 case 'b':
 713                         tmp_bss = os_realloc_array(bss_config,
 714                                                    num_bss_configs + 1,
 715                                                    sizeof(char *));
 716                         if (tmp_bss == NULL)
 717                                 goto out;
 718                         bss_config = tmp_bss;
 719                         bss_config[num_bss_configs++] = optarg;
 720                         break;
 721                 case 'S':
 722                         start_ifaces_in_sync = 1;
 723                         break;
 724 #ifdef CONFIG_WPS
 725                 case 'u':
 726                         return gen_uuid(optarg);
 727 #endif /* CONFIG_WPS */
 728                 case 'i':
 729                         if (hostapd_get_interface_names(&if_names,
 730                                                         &if_names_size, optarg))
 731                                 goto out;
 732                         break;
 733                 default:
 734                         usage();
 735                         break;
 736                 }
 737         }
 738
 739         if (optind == argc && interfaces.global_iface_path == NULL &&
 740             num_bss_configs == 0)
 741                 usage();
 742
 743         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 744
 745         if (log_file)
 746                 wpa_debug_open_file(log_file);
 747         else
 748                 wpa_debug_setup_stdout();
 749 #ifdef CONFIG_DEBUG_LINUX_TRACING
 750         if (enable_trace_dbg) {
 751                 int tret = wpa_debug_open_linux_tracing();
 752                 if (tret) {
 753                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 754                         return -1;
 755                 }
 756         }
 757 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 758
 759         interfaces.count = argc - optind;
 760         if (interfaces.count || num_bss_configs) {
 761                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 762                                              sizeof(struct hostapd_iface *));
 763                 if (interfaces.iface == NULL) {
 764                         wpa_printf(MSG_ERROR, "malloc failed");
 765                         return -1;
 766                 }
 767         }
 768
 769         if (hostapd_global_init(&interfaces, entropy_file)) {
 770                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 771                 return -1;
 772         }
 773
 774         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 775                                hostapd_periodic, &interfaces, NULL);
 776
 777         if (fst_global_init()) {
 778                 wpa_printf(MSG_ERROR,
 779                            "Failed to initialize global FST context");
 780                 goto out;
 781         }
 782
 783 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 784         if (!fst_global_add_ctrl(fst_ctrl_cli))
 785                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 786 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 787
 788         /* Allocate and parse configuration for full interface files */
 789         for (i = 0; i < interfaces.count; i++) {
 790                 char *if_name = NULL;
 791
 792                 if (i < if_names_size)
 793                         if_name = if_names[i];
 794
 795                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 796                                                              if_name,
 797                                                              argv[optind + i],
 798                                                              debug);
 799                 if (!interfaces.iface[i]) {
 800                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 801                         goto out;
 802                 }
 803                 if (start_ifaces_in_sync)
 804                         interfaces.iface[i]->need_to_start_in_sync = 1;
 805         }
 806
 807         /* Allocate and parse configuration for per-BSS files */
 808         for (i = 0; i < num_bss_configs; i++) {
 809                 struct hostapd_iface *iface;
 810                 char *fname;
 811
 812                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 813                 fname = os_strchr(bss_config[i], ':');
 814                 if (fname == NULL) {
 815                         wpa_printf(MSG_ERROR,
 816                                    "Invalid BSS config identifier '%s'",
 817                                    bss_config[i]);
 818                         goto out;
 819                 }
 820                 *fname++ = '\0';
 821                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 822                                                    fname, debug);
 823                 if (iface == NULL)
 824                         goto out;
 825                 for (j = 0; j < interfaces.count; j++) {
 826                         if (interfaces.iface[j] == iface)
 827                                 break;
 828                 }
 829                 if (j == interfaces.count) {
 830                         struct hostapd_iface **tmp;
 831                         tmp = os_realloc_array(interfaces.iface,
 832                                                interfaces.count + 1,
 833                                                sizeof(struct hostapd_iface *));
 834                         if (tmp == NULL) {
 835                                 hostapd_interface_deinit_free(iface);
 836                                 goto out;
 837                         }
 838                         interfaces.iface = tmp;
 839                         interfaces.iface[interfaces.count++] = iface;
 840                 }
 841         }
 842
 843         /*
 844          * Enable configured interfaces. Depending on channel configuration,
 845          * this may complete full initialization before returning or use a
 846          * callback mechanism to complete setup in case of operations like HT
 847          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 848          * In such case, the interface will be enabled from eloop context within
 849          * hostapd_global_run().
 850          */
 851         interfaces.terminate_on_error = interfaces.count;
 852         for (i = 0; i < interfaces.count; i++) {
 853                 if (hostapd_driver_init(interfaces.iface[i]) ||
 854                     hostapd_setup_interface(interfaces.iface[i]))
 855                         goto out;
 856         }
 857
 858         hostapd_global_ctrl_iface_init(&interfaces);
 859
 860         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 861                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 862                 goto out;
 863         }
 864
 865         ret = 0;
 866
 867  out:
 868         hostapd_global_ctrl_iface_deinit(&interfaces);
 869         /* Deinitialize all interfaces */
 870         for (i = 0; i < interfaces.count; i++) {
 871                 if (!interfaces.iface[i])
 872                         continue;
 873                 interfaces.iface[i]->driver_ap_teardown =
 874                         !!(interfaces.iface[i]->drv_flags &
 875                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 876                 hostapd_interface_deinit_free(interfaces.iface[i]);
 877         }
 878         os_free(interfaces.iface);
 879
 880         if (interfaces.eloop_initialized)
 881                 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 882         hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
 883         os_free(pid_file);
 884
 885         if (log_file)
 886                 wpa_debug_close_file();
 887         wpa_debug_close_linux_tracing();
 888
 889         os_free(bss_config);
 890
 891         for (i = 0; i < if_names_size; i++)
 892                 os_free(if_names[i]);
 893         os_free(if_names);
 894
 895         fst_global_deinit();
 896
 897         os_program_deinit();
 898
 899         return ret;
 900 }