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 "ap/dpp_hostapd.h"
  28 #include "fst/fst.h"
  29 #include "config_file.h"
  30 #include "eap_register.h"
  31 #include "ctrl_iface.h"
  32
  33
  34 struct hapd_global {
  35         void **drv_priv;
  36         size_t drv_count;
  37 };
  38
  39 static struct hapd_global global;
  40
  41
  42 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  43 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  44                               int level, const char *txt, size_t len)
  45 {
  46         struct hostapd_data *hapd = ctx;
  47         char *format, *module_str;
  48         int maxlen;
  49         int conf_syslog_level, conf_stdout_level;
  50         unsigned int conf_syslog, conf_stdout;
  51
  52         maxlen = len + 100;
  53         format = os_malloc(maxlen);
  54         if (!format)
  55                 return;
  56
  57         if (hapd && hapd->conf) {
  58                 conf_syslog_level = hapd->conf->logger_syslog_level;
  59                 conf_stdout_level = hapd->conf->logger_stdout_level;
  60                 conf_syslog = hapd->conf->logger_syslog;
  61                 conf_stdout = hapd->conf->logger_stdout;
  62         } else {
  63                 conf_syslog_level = conf_stdout_level = 0;
  64                 conf_syslog = conf_stdout = (unsigned int) -1;
  65         }
  66
  67         switch (module) {
  68         case HOSTAPD_MODULE_IEEE80211:
  69                 module_str = "IEEE 802.11";
  70                 break;
  71         case HOSTAPD_MODULE_IEEE8021X:
  72                 module_str = "IEEE 802.1X";
  73                 break;
  74         case HOSTAPD_MODULE_RADIUS:
  75                 module_str = "RADIUS";
  76                 break;
  77         case HOSTAPD_MODULE_WPA:
  78                 module_str = "WPA";
  79                 break;
  80         case HOSTAPD_MODULE_DRIVER:
  81                 module_str = "DRIVER";
  82                 break;
  83         case HOSTAPD_MODULE_IAPP:
  84                 module_str = "IAPP";
  85                 break;
  86         case HOSTAPD_MODULE_MLME:
  87                 module_str = "MLME";
  88                 break;
  89         default:
  90                 module_str = NULL;
  91                 break;
  92         }
  93
  94         if (hapd && hapd->conf && addr)
  95                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
  96                             hapd->conf->iface, MAC2STR(addr),
  97                             module_str ? " " : "", module_str ? module_str : "",
  98                             txt);
  99         else if (hapd && hapd->conf)
 100                 os_snprintf(format, maxlen, "%s:%s%s %s",
 101                             hapd->conf->iface, module_str ? " " : "",
 102                             module_str ? module_str : "", txt);
 103         else if (addr)
 104                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 105                             MAC2STR(addr), module_str ? " " : "",
 106                             module_str ? module_str : "", txt);
 107         else
 108                 os_snprintf(format, maxlen, "%s%s%s",
 109                             module_str ? module_str : "",
 110                             module_str ? ": " : "", txt);
 111
 112 #ifdef CONFIG_DEBUG_SYSLOG
 113         if (wpa_debug_syslog)
 114                 conf_stdout = 0;
 115 #endif /* CONFIG_DEBUG_SYSLOG */
 116         if ((conf_stdout & module) && level >= conf_stdout_level) {
 117                 wpa_debug_print_timestamp();
 118                 wpa_printf(MSG_INFO, "%s", format);
 119         }
 120
 121 #ifndef CONFIG_NATIVE_WINDOWS
 122         if ((conf_syslog & module) && level >= conf_syslog_level) {
 123                 int priority;
 124                 switch (level) {
 125                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 126                 case HOSTAPD_LEVEL_DEBUG:
 127                         priority = LOG_DEBUG;
 128                         break;
 129                 case HOSTAPD_LEVEL_INFO:
 130                         priority = LOG_INFO;
 131                         break;
 132                 case HOSTAPD_LEVEL_NOTICE:
 133                         priority = LOG_NOTICE;
 134                         break;
 135                 case HOSTAPD_LEVEL_WARNING:
 136                         priority = LOG_WARNING;
 137                         break;
 138                 default:
 139                         priority = LOG_INFO;
 140                         break;
 141                 }
 142                 syslog(priority, "%s", format);
 143         }
 144 #endif /* CONFIG_NATIVE_WINDOWS */
 145
 146         os_free(format);
 147 }
 148 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 149
 150
 151 /**
 152  * hostapd_driver_init - Preparate driver interface
 153  */
 154 static int hostapd_driver_init(struct hostapd_iface *iface)
 155 {
 156         struct wpa_init_params params;
 157         size_t i;
 158         struct hostapd_data *hapd = iface->bss[0];
 159         struct hostapd_bss_config *conf = hapd->conf;
 160         u8 *b = conf->bssid;
 161         struct wpa_driver_capa capa;
 162
 163         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 164                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 165                 return -1;
 166         }
 167
 168         /* Initialize the driver interface */
 169         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 170                 b = NULL;
 171
 172         os_memset(&params, 0, sizeof(params));
 173         for (i = 0; wpa_drivers[i]; i++) {
 174                 if (wpa_drivers[i] != hapd->driver)
 175                         continue;
 176
 177                 if (global.drv_priv[i] == NULL &&
 178                     wpa_drivers[i]->global_init) {
 179                         global.drv_priv[i] =
 180                                 wpa_drivers[i]->global_init(iface->interfaces);
 181                         if (global.drv_priv[i] == NULL) {
 182                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 183                                            "driver '%s'",
 184                                            wpa_drivers[i]->name);
 185                                 return -1;
 186                         }
 187                 }
 188
 189                 params.global_priv = global.drv_priv[i];
 190                 break;
 191         }
 192         params.bssid = b;
 193         params.ifname = hapd->conf->iface;
 194         params.driver_params = hapd->iconf->driver_params;
 195         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 196
 197         params.num_bridge = hapd->iface->num_bss;
 198         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 199         if (params.bridge == NULL)
 200                 return -1;
 201         for (i = 0; i < hapd->iface->num_bss; i++) {
 202                 struct hostapd_data *bss = hapd->iface->bss[i];
 203                 if (bss->conf->bridge[0])
 204                         params.bridge[i] = bss->conf->bridge;
 205         }
 206
 207         params.own_addr = hapd->own_addr;
 208
 209         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 210         os_free(params.bridge);
 211         if (hapd->drv_priv == NULL) {
 212                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 213                            hapd->driver->name);
 214                 hapd->driver = NULL;
 215                 return -1;
 216         }
 217
 218         if (hapd->driver->get_capa &&
 219             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 220                 struct wowlan_triggers *triggs;
 221
 222                 iface->drv_flags = capa.flags;
 223                 iface->smps_modes = capa.smps_modes;
 224                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 225                 /*
 226                  * Use default extended capa values from per-radio information
 227                  */
 228                 iface->extended_capa = capa.extended_capa;
 229                 iface->extended_capa_mask = capa.extended_capa_mask;
 230                 iface->extended_capa_len = capa.extended_capa_len;
 231                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 232
 233                 /*
 234                  * Override extended capa with per-interface type (AP), if
 235                  * available from the driver.
 236                  */
 237                 hostapd_get_ext_capa(iface);
 238
 239                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 240                 if (triggs && hapd->driver->set_wowlan) {
 241                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 242                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 243                 }
 244                 os_free(triggs);
 245         }
 246
 247         return 0;
 248 }
 249
 250
 251 /**
 252  * hostapd_interface_init - Read configuration file and init BSS data
 253  *
 254  * This function is used to parse configuration file for a full interface (one
 255  * or more BSSes sharing the same radio) and allocate memory for the BSS
 256  * interfaces. No actual driver operations are started.
 257  */
 258 static struct hostapd_iface *
 259 hostapd_interface_init(struct hapd_interfaces *interfaces, const char *if_name,
 260                        const char *config_fname, int debug)
 261 {
 262         struct hostapd_iface *iface;
 263         int k;
 264
 265         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 266         iface = hostapd_init(interfaces, config_fname);
 267         if (!iface)
 268                 return NULL;
 269
 270         if (if_name) {
 271                 os_strlcpy(iface->conf->bss[0]->iface, if_name,
 272                            sizeof(iface->conf->bss[0]->iface));
 273         }
 274
 275         iface->interfaces = interfaces;
 276
 277         for (k = 0; k < debug; k++) {
 278                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 279                         iface->bss[0]->conf->logger_stdout_level--;
 280         }
 281
 282         if (iface->conf->bss[0]->iface[0] == '\0' &&
 283             !hostapd_drv_none(iface->bss[0])) {
 284                 wpa_printf(MSG_ERROR,
 285                            "Interface name not specified in %s, nor by '-i' parameter",
 286                            config_fname);
 287                 hostapd_interface_deinit_free(iface);
 288                 return NULL;
 289         }
 290
 291         return iface;
 292 }
 293
 294
 295 /**
 296  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 297  */
 298 static void handle_term(int sig, void *signal_ctx)
 299 {
 300         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 301         eloop_terminate();
 302 }
 303
 304
 305 #ifndef CONFIG_NATIVE_WINDOWS
 306
 307 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 308 {
 309         if (hostapd_reload_config(iface) < 0) {
 310                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 311                            "file - continuing with old.");
 312         }
 313         return 0;
 314 }
 315
 316
 317 /**
 318  * handle_reload - SIGHUP handler to reload configuration
 319  */
 320 static void handle_reload(int sig, void *signal_ctx)
 321 {
 322         struct hapd_interfaces *interfaces = signal_ctx;
 323         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 324                    sig);
 325         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 326 }
 327
 328
 329 static void handle_dump_state(int sig, void *signal_ctx)
 330 {
 331         /* Not used anymore - ignore signal */
 332 }
 333 #endif /* CONFIG_NATIVE_WINDOWS */
 334
 335
 336 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 337                                const char *entropy_file)
 338 {
 339         int i;
 340
 341         os_memset(&global, 0, sizeof(global));
 342
 343         hostapd_logger_register_cb(hostapd_logger_cb);
 344
 345         if (eap_server_register_methods()) {
 346                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 347                 return -1;
 348         }
 349
 350         if (eloop_init()) {
 351                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 352                 return -1;
 353         }
 354         interfaces->eloop_initialized = 1;
 355
 356         random_init(entropy_file);
 357
 358 #ifndef CONFIG_NATIVE_WINDOWS
 359         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 360         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 361 #endif /* CONFIG_NATIVE_WINDOWS */
 362         eloop_register_signal_terminate(handle_term, interfaces);
 363
 364 #ifndef CONFIG_NATIVE_WINDOWS
 365         openlog("hostapd", 0, LOG_DAEMON);
 366 #endif /* CONFIG_NATIVE_WINDOWS */
 367
 368         for (i = 0; wpa_drivers[i]; i++)
 369                 global.drv_count++;
 370         if (global.drv_count == 0) {
 371                 wpa_printf(MSG_ERROR, "No drivers enabled");
 372                 return -1;
 373         }
 374         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 375         if (global.drv_priv == NULL)
 376                 return -1;
 377
 378         return 0;
 379 }
 380
 381
 382 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
 383 {
 384         int i;
 385
 386         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 387                 if (!global.drv_priv[i])
 388                         continue;
 389                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 390         }
 391         os_free(global.drv_priv);
 392         global.drv_priv = NULL;
 393
 394 #ifdef EAP_SERVER_TNC
 395         tncs_global_deinit();
 396 #endif /* EAP_SERVER_TNC */
 397
 398         random_deinit();
 399
 400         if (eloop_initialized)
 401                 eloop_destroy();
 402
 403 #ifndef CONFIG_NATIVE_WINDOWS
 404         closelog();
 405 #endif /* CONFIG_NATIVE_WINDOWS */
 406
 407         eap_server_unregister_methods();
 408
 409         os_daemonize_terminate(pid_file);
 410 }
 411
 412
 413 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 414                               const char *pid_file)
 415 {
 416 #ifdef EAP_SERVER_TNC
 417         int tnc = 0;
 418         size_t i, k;
 419
 420         for (i = 0; !tnc && i < ifaces->count; i++) {
 421                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 422                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 423                                 tnc++;
 424                                 break;
 425                         }
 426                 }
 427         }
 428
 429         if (tnc && tncs_global_init() < 0) {
 430                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 431                 return -1;
 432         }
 433 #endif /* EAP_SERVER_TNC */
 434
 435         if (daemonize) {
 436                 if (os_daemonize(pid_file)) {
 437                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 438                         return -1;
 439                 }
 440                 if (eloop_sock_requeue()) {
 441                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 442                                    strerror(errno));
 443                         return -1;
 444                 }
 445         }
 446
 447         eloop_run();
 448
 449         return 0;
 450 }
 451
 452
 453 static void show_version(void)
 454 {
 455         fprintf(stderr,
 456                 "hostapd v" VERSION_STR "\n"
 457                 "User space daemon for IEEE 802.11 AP management,\n"
 458                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 459                 "Copyright (c) 2002-2017, Jouni Malinen <j@w1.fi> "
 460                 "and contributors\n");
 461 }
 462
 463
 464 static void usage(void)
 465 {
 466         show_version();
 467         fprintf(stderr,
 468                 "\n"
 469                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 470                 "\\\n"
 471                 "         [-g <global ctrl_iface>] [-G <group>]\\\n"
 472                 "         [-i <comma-separated list of interface names>]\\\n"
 473                 "         <configuration file(s)>\n"
 474                 "\n"
 475                 "options:\n"
 476                 "   -h   show this usage\n"
 477                 "   -d   show more debug messages (-dd for even more)\n"
 478                 "   -B   run daemon in the background\n"
 479                 "   -e   entropy file\n"
 480                 "   -g   global control interface path\n"
 481                 "   -G   group for control interfaces\n"
 482                 "   -P   PID file\n"
 483                 "   -K   include key data in debug messages\n"
 484 #ifdef CONFIG_DEBUG_FILE
 485                 "   -f   log output to debug file instead of stdout\n"
 486 #endif /* CONFIG_DEBUG_FILE */
 487 #ifdef CONFIG_DEBUG_LINUX_TRACING
 488                 "   -T   record to Linux tracing in addition to logging\n"
 489                 "        (records all messages regardless of debug verbosity)\n"
 490 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 491                 "   -i   list of interface names to use\n"
 492 #ifdef CONFIG_DEBUG_SYSLOG
 493                 "   -s   log output to syslog instead of stdout\n"
 494 #endif /* CONFIG_DEBUG_SYSLOG */
 495                 "   -S   start all the interfaces synchronously\n"
 496                 "   -t   include timestamps in some debug messages\n"
 497                 "   -v   show hostapd version\n");
 498
 499         exit(1);
 500 }
 501
 502
 503 static const char * hostapd_msg_ifname_cb(void *ctx)
 504 {
 505         struct hostapd_data *hapd = ctx;
 506         if (hapd && hapd->conf)
 507                 return hapd->conf->iface;
 508         return NULL;
 509 }
 510
 511
 512 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 513                                          const char *path)
 514 {
 515 #ifndef CONFIG_CTRL_IFACE_UDP
 516         char *pos;
 517 #endif /* !CONFIG_CTRL_IFACE_UDP */
 518
 519         os_free(interfaces->global_iface_path);
 520         interfaces->global_iface_path = os_strdup(path);
 521         if (interfaces->global_iface_path == NULL)
 522                 return -1;
 523
 524 #ifndef CONFIG_CTRL_IFACE_UDP
 525         pos = os_strrchr(interfaces->global_iface_path, '/');
 526         if (pos == NULL) {
 527                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 528                            "file");
 529                 os_free(interfaces->global_iface_path);
 530                 interfaces->global_iface_path = NULL;
 531                 return -1;
 532         }
 533
 534         *pos = '\0';
 535         interfaces->global_iface_name = pos + 1;
 536 #endif /* !CONFIG_CTRL_IFACE_UDP */
 537
 538         return 0;
 539 }
 540
 541
 542 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 543                                         const char *group)
 544 {
 545 #ifndef CONFIG_NATIVE_WINDOWS
 546         struct group *grp;
 547         grp = getgrnam(group);
 548         if (grp == NULL) {
 549                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 550                 return -1;
 551         }
 552         interfaces->ctrl_iface_group = grp->gr_gid;
 553 #endif /* CONFIG_NATIVE_WINDOWS */
 554         return 0;
 555 }
 556
 557
 558 static int hostapd_get_interface_names(char ***if_names,
 559                                        size_t *if_names_size,
 560                                        char *arg)
 561 {
 562         char *if_name, *tmp, **nnames;
 563         size_t i;
 564
 565         if (!arg)
 566                 return -1;
 567         if_name = strtok_r(arg, ",", &tmp);
 568
 569         while (if_name) {
 570                 nnames = os_realloc_array(*if_names, 1 + *if_names_size,
 571                                           sizeof(char *));
 572                 if (!nnames)
 573                         goto fail;
 574                 *if_names = nnames;
 575
 576                 (*if_names)[*if_names_size] = os_strdup(if_name);
 577                 if (!(*if_names)[*if_names_size])
 578                         goto fail;
 579                 (*if_names_size)++;
 580                 if_name = strtok_r(NULL, ",", &tmp);
 581         }
 582
 583         return 0;
 584
 585 fail:
 586         for (i = 0; i < *if_names_size; i++)
 587                 os_free((*if_names)[i]);
 588         os_free(*if_names);
 589         *if_names = NULL;
 590         *if_names_size = 0;
 591         return -1;
 592 }
 593
 594
 595 #ifdef CONFIG_WPS
 596 static int gen_uuid(const char *txt_addr)
 597 {
 598         u8 addr[ETH_ALEN];
 599         u8 uuid[UUID_LEN];
 600         char buf[100];
 601
 602         if (hwaddr_aton(txt_addr, addr) < 0)
 603                 return -1;
 604
 605         uuid_gen_mac_addr(addr, uuid);
 606         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 607                 return -1;
 608
 609         printf("%s\n", buf);
 610
 611         return 0;
 612 }
 613 #endif /* CONFIG_WPS */
 614
 615
 616 #ifndef HOSTAPD_CLEANUP_INTERVAL
 617 #define HOSTAPD_CLEANUP_INTERVAL 10
 618 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 619
 620 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 621 {
 622         hostapd_periodic_iface(iface);
 623         return 0;
 624 }
 625
 626
 627 /* Periodic cleanup tasks */
 628 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 629 {
 630         struct hapd_interfaces *interfaces = eloop_ctx;
 631
 632         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 633                                hostapd_periodic, interfaces, NULL);
 634         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 635 }
 636
 637
 638 int main(int argc, char *argv[])
 639 {
 640         struct hapd_interfaces interfaces;
 641         int ret = 1;
 642         size_t i, j;
 643         int c, debug = 0, daemonize = 0;
 644         char *pid_file = NULL;
 645         const char *log_file = NULL;
 646         const char *entropy_file = NULL;
 647         char **bss_config = NULL, **tmp_bss;
 648         size_t num_bss_configs = 0;
 649 #ifdef CONFIG_DEBUG_LINUX_TRACING
 650         int enable_trace_dbg = 0;
 651 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 652         int start_ifaces_in_sync = 0;
 653         char **if_names = NULL;
 654         size_t if_names_size = 0;
 655
 656         if (os_program_init())
 657                 return -1;
 658
 659         os_memset(&interfaces, 0, sizeof(interfaces));
 660         interfaces.reload_config = hostapd_reload_config;
 661         interfaces.config_read_cb = hostapd_config_read;
 662         interfaces.for_each_interface = hostapd_for_each_interface;
 663         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 664         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 665         interfaces.driver_init = hostapd_driver_init;
 666         interfaces.global_iface_path = NULL;
 667         interfaces.global_iface_name = NULL;
 668         interfaces.global_ctrl_sock = -1;
 669         dl_list_init(&interfaces.global_ctrl_dst);
 670 #ifdef CONFIG_ETH_P_OUI
 671         dl_list_init(&interfaces.eth_p_oui);
 672 #endif /* CONFIG_ETH_P_OUI */
 673 #ifdef CONFIG_DPP
 674         hostapd_dpp_init_global(&interfaces);
 675 #endif /* CONFIG_DPP */
 676
 677         for (;;) {
 678                 c = getopt(argc, argv, "b:Bde:f:hi:KP:sSTtu:vg:G:");
 679                 if (c < 0)
 680                         break;
 681                 switch (c) {
 682                 case 'h':
 683                         usage();
 684                         break;
 685                 case 'd':
 686                         debug++;
 687                         if (wpa_debug_level > 0)
 688                                 wpa_debug_level--;
 689                         break;
 690                 case 'B':
 691                         daemonize++;
 692                         break;
 693                 case 'e':
 694                         entropy_file = optarg;
 695                         break;
 696                 case 'f':
 697                         log_file = optarg;
 698                         break;
 699                 case 'K':
 700                         wpa_debug_show_keys++;
 701                         break;
 702                 case 'P':
 703                         os_free(pid_file);
 704                         pid_file = os_rel2abs_path(optarg);
 705                         break;
 706                 case 't':
 707                         wpa_debug_timestamp++;
 708                         break;
 709 #ifdef CONFIG_DEBUG_LINUX_TRACING
 710                 case 'T':
 711                         enable_trace_dbg = 1;
 712                         break;
 713 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 714                 case 'v':
 715                         show_version();
 716                         exit(1);
 717                         break;
 718                 case 'g':
 719                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 720                                 return -1;
 721                         break;
 722                 case 'G':
 723                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 724                                 return -1;
 725                         break;
 726                 case 'b':
 727                         tmp_bss = os_realloc_array(bss_config,
 728                                                    num_bss_configs + 1,
 729                                                    sizeof(char *));
 730                         if (tmp_bss == NULL)
 731                                 goto out;
 732                         bss_config = tmp_bss;
 733                         bss_config[num_bss_configs++] = optarg;
 734                         break;
 735 #ifdef CONFIG_DEBUG_SYSLOG
 736                 case 's':
 737                         wpa_debug_syslog = 1;
 738                         break;
 739 #endif /* CONFIG_DEBUG_SYSLOG */
 740                 case 'S':
 741                         start_ifaces_in_sync = 1;
 742                         break;
 743 #ifdef CONFIG_WPS
 744                 case 'u':
 745                         return gen_uuid(optarg);
 746 #endif /* CONFIG_WPS */
 747                 case 'i':
 748                         if (hostapd_get_interface_names(&if_names,
 749                                                         &if_names_size, optarg))
 750                                 goto out;
 751                         break;
 752                 default:
 753                         usage();
 754                         break;
 755                 }
 756         }
 757
 758         if (optind == argc && interfaces.global_iface_path == NULL &&
 759             num_bss_configs == 0)
 760                 usage();
 761
 762         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 763
 764         if (log_file)
 765                 wpa_debug_open_file(log_file);
 766         else
 767                 wpa_debug_setup_stdout();
 768 #ifdef CONFIG_DEBUG_SYSLOG
 769         if (wpa_debug_syslog)
 770                 wpa_debug_open_syslog();
 771 #endif /* CONFIG_DEBUG_SYSLOG */
 772 #ifdef CONFIG_DEBUG_LINUX_TRACING
 773         if (enable_trace_dbg) {
 774                 int tret = wpa_debug_open_linux_tracing();
 775                 if (tret) {
 776                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 777                         return -1;
 778                 }
 779         }
 780 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 781
 782         interfaces.count = argc - optind;
 783         if (interfaces.count || num_bss_configs) {
 784                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 785                                              sizeof(struct hostapd_iface *));
 786                 if (interfaces.iface == NULL) {
 787                         wpa_printf(MSG_ERROR, "malloc failed");
 788                         return -1;
 789                 }
 790         }
 791
 792         if (hostapd_global_init(&interfaces, entropy_file)) {
 793                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 794                 return -1;
 795         }
 796
 797         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 798                                hostapd_periodic, &interfaces, NULL);
 799
 800         if (fst_global_init()) {
 801                 wpa_printf(MSG_ERROR,
 802                            "Failed to initialize global FST context");
 803                 goto out;
 804         }
 805
 806 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 807         if (!fst_global_add_ctrl(fst_ctrl_cli))
 808                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 809 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 810
 811         /* Allocate and parse configuration for full interface files */
 812         for (i = 0; i < interfaces.count; i++) {
 813                 char *if_name = NULL;
 814
 815                 if (i < if_names_size)
 816                         if_name = if_names[i];
 817
 818                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 819                                                              if_name,
 820                                                              argv[optind + i],
 821                                                              debug);
 822                 if (!interfaces.iface[i]) {
 823                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 824                         goto out;
 825                 }
 826                 if (start_ifaces_in_sync)
 827                         interfaces.iface[i]->need_to_start_in_sync = 1;
 828         }
 829
 830         /* Allocate and parse configuration for per-BSS files */
 831         for (i = 0; i < num_bss_configs; i++) {
 832                 struct hostapd_iface *iface;
 833                 char *fname;
 834
 835                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 836                 fname = os_strchr(bss_config[i], ':');
 837                 if (fname == NULL) {
 838                         wpa_printf(MSG_ERROR,
 839                                    "Invalid BSS config identifier '%s'",
 840                                    bss_config[i]);
 841                         goto out;
 842                 }
 843                 *fname++ = '\0';
 844                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 845                                                    fname, debug);
 846                 if (iface == NULL)
 847                         goto out;
 848                 for (j = 0; j < interfaces.count; j++) {
 849                         if (interfaces.iface[j] == iface)
 850                                 break;
 851                 }
 852                 if (j == interfaces.count) {
 853                         struct hostapd_iface **tmp;
 854                         tmp = os_realloc_array(interfaces.iface,
 855                                                interfaces.count + 1,
 856                                                sizeof(struct hostapd_iface *));
 857                         if (tmp == NULL) {
 858                                 hostapd_interface_deinit_free(iface);
 859                                 goto out;
 860                         }
 861                         interfaces.iface = tmp;
 862                         interfaces.iface[interfaces.count++] = iface;
 863                 }
 864         }
 865
 866         /*
 867          * Enable configured interfaces. Depending on channel configuration,
 868          * this may complete full initialization before returning or use a
 869          * callback mechanism to complete setup in case of operations like HT
 870          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 871          * In such case, the interface will be enabled from eloop context within
 872          * hostapd_global_run().
 873          */
 874         interfaces.terminate_on_error = interfaces.count;
 875         for (i = 0; i < interfaces.count; i++) {
 876                 if (hostapd_driver_init(interfaces.iface[i]) ||
 877                     hostapd_setup_interface(interfaces.iface[i]))
 878                         goto out;
 879         }
 880
 881         hostapd_global_ctrl_iface_init(&interfaces);
 882
 883         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 884                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 885                 goto out;
 886         }
 887
 888         ret = 0;
 889
 890  out:
 891         hostapd_global_ctrl_iface_deinit(&interfaces);
 892         /* Deinitialize all interfaces */
 893         for (i = 0; i < interfaces.count; i++) {
 894                 if (!interfaces.iface[i])
 895                         continue;
 896                 interfaces.iface[i]->driver_ap_teardown =
 897                         !!(interfaces.iface[i]->drv_flags &
 898                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 899                 hostapd_interface_deinit_free(interfaces.iface[i]);
 900         }
 901         os_free(interfaces.iface);
 902
 903 #ifdef CONFIG_DPP
 904         hostapd_dpp_deinit_global(&interfaces);
 905 #endif /* CONFIG_DPP */
 906
 907         if (interfaces.eloop_initialized)
 908                 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 909         hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
 910         os_free(pid_file);
 911
 912         wpa_debug_close_syslog();
 913         if (log_file)
 914                 wpa_debug_close_file();
 915         wpa_debug_close_linux_tracing();
 916
 917         os_free(bss_config);
 918
 919         for (i = 0; i < if_names_size; i++)
 920                 os_free(if_names[i]);
 921         os_free(if_names);
 922
 923         fst_global_deinit();
 924
 925         os_program_deinit();
 926
 927         return ret;
 928 }