contrib/wpa/hostapd/main.c

   1 /*
   2  * hostapd / main()
   3  * Copyright (c) 2002-2019, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10 #ifndef CONFIG_NATIVE_WINDOWS
  11 #include <syslog.h>
  12 #include <grp.h>
  13 #endif /* CONFIG_NATIVE_WINDOWS */
  14
  15 #include "utils/common.h"
  16 #include "utils/eloop.h"
  17 #include "utils/uuid.h"
  18 #include "crypto/random.h"
  19 #include "crypto/tls.h"
  20 #include "common/version.h"
  21 #include "common/dpp.h"
  22 #include "drivers/driver.h"
  23 #include "eap_server/eap.h"
  24 #include "eap_server/tncs.h"
  25 #include "ap/hostapd.h"
  26 #include "ap/ap_config.h"
  27 #include "ap/ap_drv_ops.h"
  28 #include "ap/dpp_hostapd.h"
  29 #include "fst/fst.h"
  30 #include "config_file.h"
  31 #include "eap_register.h"
  32 #include "ctrl_iface.h"
  33
  34
  35 struct hapd_global {
  36         void **drv_priv;
  37         size_t drv_count;
  38 };
  39
  40 static struct hapd_global global;
  41
  42
  43 #ifndef CONFIG_NO_HOSTAPD_LOGGER
  44 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  45                               int level, const char *txt, size_t len)
  46 {
  47         struct hostapd_data *hapd = ctx;
  48         char *format, *module_str;
  49         int maxlen;
  50         int conf_syslog_level, conf_stdout_level;
  51         unsigned int conf_syslog, conf_stdout;
  52
  53         maxlen = len + 100;
  54         format = os_malloc(maxlen);
  55         if (!format)
  56                 return;
  57
  58         if (hapd && hapd->conf) {
  59                 conf_syslog_level = hapd->conf->logger_syslog_level;
  60                 conf_stdout_level = hapd->conf->logger_stdout_level;
  61                 conf_syslog = hapd->conf->logger_syslog;
  62                 conf_stdout = hapd->conf->logger_stdout;
  63         } else {
  64                 conf_syslog_level = conf_stdout_level = 0;
  65                 conf_syslog = conf_stdout = (unsigned int) -1;
  66         }
  67
  68         switch (module) {
  69         case HOSTAPD_MODULE_IEEE80211:
  70                 module_str = "IEEE 802.11";
  71                 break;
  72         case HOSTAPD_MODULE_IEEE8021X:
  73                 module_str = "IEEE 802.1X";
  74                 break;
  75         case HOSTAPD_MODULE_RADIUS:
  76                 module_str = "RADIUS";
  77                 break;
  78         case HOSTAPD_MODULE_WPA:
  79                 module_str = "WPA";
  80                 break;
  81         case HOSTAPD_MODULE_DRIVER:
  82                 module_str = "DRIVER";
  83                 break;
  84         case HOSTAPD_MODULE_IAPP:
  85                 module_str = "IAPP";
  86                 break;
  87         case HOSTAPD_MODULE_MLME:
  88                 module_str = "MLME";
  89                 break;
  90         default:
  91                 module_str = NULL;
  92                 break;
  93         }
  94
  95         if (hapd && hapd->conf && addr)
  96                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
  97                             hapd->conf->iface, MAC2STR(addr),
  98                             module_str ? " " : "", module_str ? module_str : "",
  99                             txt);
 100         else if (hapd && hapd->conf)
 101                 os_snprintf(format, maxlen, "%s:%s%s %s",
 102                             hapd->conf->iface, module_str ? " " : "",
 103                             module_str ? module_str : "", txt);
 104         else if (addr)
 105                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
 106                             MAC2STR(addr), module_str ? " " : "",
 107                             module_str ? module_str : "", txt);
 108         else
 109                 os_snprintf(format, maxlen, "%s%s%s",
 110                             module_str ? module_str : "",
 111                             module_str ? ": " : "", txt);
 112
 113 #ifdef CONFIG_DEBUG_SYSLOG
 114         if (wpa_debug_syslog)
 115                 conf_stdout = 0;
 116 #endif /* CONFIG_DEBUG_SYSLOG */
 117         if ((conf_stdout & module) && level >= conf_stdout_level) {
 118                 wpa_debug_print_timestamp();
 119                 wpa_printf(MSG_INFO, "%s", format);
 120         }
 121
 122 #ifndef CONFIG_NATIVE_WINDOWS
 123         if ((conf_syslog & module) && level >= conf_syslog_level) {
 124                 int priority;
 125                 switch (level) {
 126                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
 127                 case HOSTAPD_LEVEL_DEBUG:
 128                         priority = LOG_DEBUG;
 129                         break;
 130                 case HOSTAPD_LEVEL_INFO:
 131                         priority = LOG_INFO;
 132                         break;
 133                 case HOSTAPD_LEVEL_NOTICE:
 134                         priority = LOG_NOTICE;
 135                         break;
 136                 case HOSTAPD_LEVEL_WARNING:
 137                         priority = LOG_WARNING;
 138                         break;
 139                 default:
 140                         priority = LOG_INFO;
 141                         break;
 142                 }
 143                 syslog(priority, "%s", format);
 144         }
 145 #endif /* CONFIG_NATIVE_WINDOWS */
 146
 147         os_free(format);
 148 }
 149 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
 150
 151
 152 /**
 153  * hostapd_driver_init - Preparate driver interface
 154  */
 155 static int hostapd_driver_init(struct hostapd_iface *iface)
 156 {
 157         struct wpa_init_params params;
 158         size_t i;
 159         struct hostapd_data *hapd = iface->bss[0];
 160         struct hostapd_bss_config *conf = hapd->conf;
 161         u8 *b = conf->bssid;
 162         struct wpa_driver_capa capa;
 163
 164         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
 165                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
 166                 return -1;
 167         }
 168
 169         /* Initialize the driver interface */
 170         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
 171                 b = NULL;
 172
 173         os_memset(&params, 0, sizeof(params));
 174         for (i = 0; wpa_drivers[i]; i++) {
 175                 if (wpa_drivers[i] != hapd->driver)
 176                         continue;
 177
 178                 if (global.drv_priv[i] == NULL &&
 179                     wpa_drivers[i]->global_init) {
 180                         global.drv_priv[i] =
 181                                 wpa_drivers[i]->global_init(iface->interfaces);
 182                         if (global.drv_priv[i] == NULL) {
 183                                 wpa_printf(MSG_ERROR, "Failed to initialize "
 184                                            "driver '%s'",
 185                                            wpa_drivers[i]->name);
 186                                 return -1;
 187                         }
 188                 }
 189
 190                 params.global_priv = global.drv_priv[i];
 191                 break;
 192         }
 193         params.bssid = b;
 194         params.ifname = hapd->conf->iface;
 195         params.driver_params = hapd->iconf->driver_params;
 196         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 197
 198         params.num_bridge = hapd->iface->num_bss;
 199         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
 200         if (params.bridge == NULL)
 201                 return -1;
 202         for (i = 0; i < hapd->iface->num_bss; i++) {
 203                 struct hostapd_data *bss = hapd->iface->bss[i];
 204                 if (bss->conf->bridge[0])
 205                         params.bridge[i] = bss->conf->bridge;
 206         }
 207
 208         params.own_addr = hapd->own_addr;
 209
 210         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
 211         os_free(params.bridge);
 212         if (hapd->drv_priv == NULL) {
 213                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
 214                            hapd->driver->name);
 215                 hapd->driver = NULL;
 216                 return -1;
 217         }
 218
 219         if (hapd->driver->get_capa &&
 220             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
 221                 struct wowlan_triggers *triggs;
 222
 223                 iface->drv_flags = capa.flags;
 224                 iface->smps_modes = capa.smps_modes;
 225                 iface->probe_resp_offloads = capa.probe_resp_offloads;
 226                 /*
 227                  * Use default extended capa values from per-radio information
 228                  */
 229                 iface->extended_capa = capa.extended_capa;
 230                 iface->extended_capa_mask = capa.extended_capa_mask;
 231                 iface->extended_capa_len = capa.extended_capa_len;
 232                 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
 233
 234                 /*
 235                  * Override extended capa with per-interface type (AP), if
 236                  * available from the driver.
 237                  */
 238                 hostapd_get_ext_capa(iface);
 239
 240                 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
 241                 if (triggs && hapd->driver->set_wowlan) {
 242                         if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
 243                                 wpa_printf(MSG_ERROR, "set_wowlan failed");
 244                 }
 245                 os_free(triggs);
 246         }
 247
 248         return 0;
 249 }
 250
 251
 252 /**
 253  * hostapd_interface_init - Read configuration file and init BSS data
 254  *
 255  * This function is used to parse configuration file for a full interface (one
 256  * or more BSSes sharing the same radio) and allocate memory for the BSS
 257  * interfaces. No actual driver operations are started.
 258  */
 259 static struct hostapd_iface *
 260 hostapd_interface_init(struct hapd_interfaces *interfaces, const char *if_name,
 261                        const char *config_fname, int debug)
 262 {
 263         struct hostapd_iface *iface;
 264         int k;
 265
 266         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
 267         iface = hostapd_init(interfaces, config_fname);
 268         if (!iface)
 269                 return NULL;
 270
 271         if (if_name) {
 272                 os_strlcpy(iface->conf->bss[0]->iface, if_name,
 273                            sizeof(iface->conf->bss[0]->iface));
 274         }
 275
 276         iface->interfaces = interfaces;
 277
 278         for (k = 0; k < debug; k++) {
 279                 if (iface->bss[0]->conf->logger_stdout_level > 0)
 280                         iface->bss[0]->conf->logger_stdout_level--;
 281         }
 282
 283         if (iface->conf->bss[0]->iface[0] == '\0' &&
 284             !hostapd_drv_none(iface->bss[0])) {
 285                 wpa_printf(MSG_ERROR,
 286                            "Interface name not specified in %s, nor by '-i' parameter",
 287                            config_fname);
 288                 hostapd_interface_deinit_free(iface);
 289                 return NULL;
 290         }
 291
 292         return iface;
 293 }
 294
 295
 296 /**
 297  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
 298  */
 299 static void handle_term(int sig, void *signal_ctx)
 300 {
 301         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
 302         eloop_terminate();
 303 }
 304
 305
 306 #ifndef CONFIG_NATIVE_WINDOWS
 307
 308 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
 309 {
 310         if (hostapd_reload_config(iface) < 0) {
 311                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
 312                            "file - continuing with old.");
 313         }
 314         return 0;
 315 }
 316
 317
 318 /**
 319  * handle_reload - SIGHUP handler to reload configuration
 320  */
 321 static void handle_reload(int sig, void *signal_ctx)
 322 {
 323         struct hapd_interfaces *interfaces = signal_ctx;
 324         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
 325                    sig);
 326         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
 327 }
 328
 329
 330 static void handle_dump_state(int sig, void *signal_ctx)
 331 {
 332         /* Not used anymore - ignore signal */
 333 }
 334 #endif /* CONFIG_NATIVE_WINDOWS */
 335
 336
 337 static int hostapd_global_init(struct hapd_interfaces *interfaces,
 338                                const char *entropy_file)
 339 {
 340         int i;
 341
 342         os_memset(&global, 0, sizeof(global));
 343
 344         hostapd_logger_register_cb(hostapd_logger_cb);
 345
 346         if (eap_server_register_methods()) {
 347                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 348                 return -1;
 349         }
 350
 351         if (eloop_init()) {
 352                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 353                 return -1;
 354         }
 355         interfaces->eloop_initialized = 1;
 356
 357         random_init(entropy_file);
 358
 359 #ifndef CONFIG_NATIVE_WINDOWS
 360         eloop_register_signal(SIGHUP, handle_reload, interfaces);
 361         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
 362 #endif /* CONFIG_NATIVE_WINDOWS */
 363         eloop_register_signal_terminate(handle_term, interfaces);
 364
 365 #ifndef CONFIG_NATIVE_WINDOWS
 366         openlog("hostapd", 0, LOG_DAEMON);
 367 #endif /* CONFIG_NATIVE_WINDOWS */
 368
 369         for (i = 0; wpa_drivers[i]; i++)
 370                 global.drv_count++;
 371         if (global.drv_count == 0) {
 372                 wpa_printf(MSG_ERROR, "No drivers enabled");
 373                 return -1;
 374         }
 375         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
 376         if (global.drv_priv == NULL)
 377                 return -1;
 378
 379         return 0;
 380 }
 381
 382
 383 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
 384 {
 385         int i;
 386
 387         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
 388                 if (!global.drv_priv[i])
 389                         continue;
 390                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
 391         }
 392         os_free(global.drv_priv);
 393         global.drv_priv = NULL;
 394
 395 #ifdef EAP_SERVER_TNC
 396         tncs_global_deinit();
 397 #endif /* EAP_SERVER_TNC */
 398
 399         random_deinit();
 400
 401         if (eloop_initialized)
 402                 eloop_destroy();
 403
 404 #ifndef CONFIG_NATIVE_WINDOWS
 405         closelog();
 406 #endif /* CONFIG_NATIVE_WINDOWS */
 407
 408         eap_server_unregister_methods();
 409
 410         os_daemonize_terminate(pid_file);
 411 }
 412
 413
 414 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
 415                               const char *pid_file)
 416 {
 417 #ifdef EAP_SERVER_TNC
 418         int tnc = 0;
 419         size_t i, k;
 420
 421         for (i = 0; !tnc && i < ifaces->count; i++) {
 422                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
 423                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
 424                                 tnc++;
 425                                 break;
 426                         }
 427                 }
 428         }
 429
 430         if (tnc && tncs_global_init() < 0) {
 431                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
 432                 return -1;
 433         }
 434 #endif /* EAP_SERVER_TNC */
 435
 436         if (daemonize) {
 437                 if (os_daemonize(pid_file)) {
 438                         wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 439                         return -1;
 440                 }
 441                 if (eloop_sock_requeue()) {
 442                         wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
 443                                    strerror(errno));
 444                         return -1;
 445                 }
 446         }
 447
 448         eloop_run();
 449
 450         return 0;
 451 }
 452
 453
 454 static void show_version(void)
 455 {
 456         fprintf(stderr,
 457                 "hostapd v" VERSION_STR "\n"
 458                 "User space daemon for IEEE 802.11 AP management,\n"
 459                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
 460                 "Copyright (c) 2002-2019, Jouni Malinen <j@w1.fi> "
 461                 "and contributors\n");
 462 }
 463
 464
 465 static void usage(void)
 466 {
 467         show_version();
 468         fprintf(stderr,
 469                 "\n"
 470                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
 471                 "\\\n"
 472                 "         [-g <global ctrl_iface>] [-G <group>]\\\n"
 473                 "         [-i <comma-separated list of interface names>]\\\n"
 474                 "         <configuration file(s)>\n"
 475                 "\n"
 476                 "options:\n"
 477                 "   -h   show this usage\n"
 478                 "   -d   show more debug messages (-dd for even more)\n"
 479                 "   -B   run daemon in the background\n"
 480                 "   -e   entropy file\n"
 481                 "   -g   global control interface path\n"
 482                 "   -G   group for control interfaces\n"
 483                 "   -P   PID file\n"
 484                 "   -K   include key data in debug messages\n"
 485 #ifdef CONFIG_DEBUG_FILE
 486                 "   -f   log output to debug file instead of stdout\n"
 487 #endif /* CONFIG_DEBUG_FILE */
 488 #ifdef CONFIG_DEBUG_LINUX_TRACING
 489                 "   -T   record to Linux tracing in addition to logging\n"
 490                 "        (records all messages regardless of debug verbosity)\n"
 491 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 492                 "   -i   list of interface names to use\n"
 493 #ifdef CONFIG_DEBUG_SYSLOG
 494                 "   -s   log output to syslog instead of stdout\n"
 495 #endif /* CONFIG_DEBUG_SYSLOG */
 496                 "   -S   start all the interfaces synchronously\n"
 497                 "   -t   include timestamps in some debug messages\n"
 498                 "   -v   show hostapd version\n");
 499
 500         exit(1);
 501 }
 502
 503
 504 static const char * hostapd_msg_ifname_cb(void *ctx)
 505 {
 506         struct hostapd_data *hapd = ctx;
 507         if (hapd && hapd->conf)
 508                 return hapd->conf->iface;
 509         return NULL;
 510 }
 511
 512
 513 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
 514                                          const char *path)
 515 {
 516 #ifndef CONFIG_CTRL_IFACE_UDP
 517         char *pos;
 518 #endif /* !CONFIG_CTRL_IFACE_UDP */
 519
 520         os_free(interfaces->global_iface_path);
 521         interfaces->global_iface_path = os_strdup(path);
 522         if (interfaces->global_iface_path == NULL)
 523                 return -1;
 524
 525 #ifndef CONFIG_CTRL_IFACE_UDP
 526         pos = os_strrchr(interfaces->global_iface_path, '/');
 527         if (pos == NULL) {
 528                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
 529                            "file");
 530                 os_free(interfaces->global_iface_path);
 531                 interfaces->global_iface_path = NULL;
 532                 return -1;
 533         }
 534
 535         *pos = '\0';
 536         interfaces->global_iface_name = pos + 1;
 537 #endif /* !CONFIG_CTRL_IFACE_UDP */
 538
 539         return 0;
 540 }
 541
 542
 543 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
 544                                         const char *group)
 545 {
 546 #ifndef CONFIG_NATIVE_WINDOWS
 547         struct group *grp;
 548         grp = getgrnam(group);
 549         if (grp == NULL) {
 550                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
 551                 return -1;
 552         }
 553         interfaces->ctrl_iface_group = grp->gr_gid;
 554 #endif /* CONFIG_NATIVE_WINDOWS */
 555         return 0;
 556 }
 557
 558
 559 static int hostapd_get_interface_names(char ***if_names,
 560                                        size_t *if_names_size,
 561                                        char *arg)
 562 {
 563         char *if_name, *tmp, **nnames;
 564         size_t i;
 565
 566         if (!arg)
 567                 return -1;
 568         if_name = strtok_r(arg, ",", &tmp);
 569
 570         while (if_name) {
 571                 nnames = os_realloc_array(*if_names, 1 + *if_names_size,
 572                                           sizeof(char *));
 573                 if (!nnames)
 574                         goto fail;
 575                 *if_names = nnames;
 576
 577                 (*if_names)[*if_names_size] = os_strdup(if_name);
 578                 if (!(*if_names)[*if_names_size])
 579                         goto fail;
 580                 (*if_names_size)++;
 581                 if_name = strtok_r(NULL, ",", &tmp);
 582         }
 583
 584         return 0;
 585
 586 fail:
 587         for (i = 0; i < *if_names_size; i++)
 588                 os_free((*if_names)[i]);
 589         os_free(*if_names);
 590         *if_names = NULL;
 591         *if_names_size = 0;
 592         return -1;
 593 }
 594
 595
 596 #ifdef CONFIG_WPS
 597 static int gen_uuid(const char *txt_addr)
 598 {
 599         u8 addr[ETH_ALEN];
 600         u8 uuid[UUID_LEN];
 601         char buf[100];
 602
 603         if (hwaddr_aton(txt_addr, addr) < 0)
 604                 return -1;
 605
 606         uuid_gen_mac_addr(addr, uuid);
 607         if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
 608                 return -1;
 609
 610         printf("%s\n", buf);
 611
 612         return 0;
 613 }
 614 #endif /* CONFIG_WPS */
 615
 616
 617 #ifndef HOSTAPD_CLEANUP_INTERVAL
 618 #define HOSTAPD_CLEANUP_INTERVAL 10
 619 #endif /* HOSTAPD_CLEANUP_INTERVAL */
 620
 621 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
 622 {
 623         hostapd_periodic_iface(iface);
 624         return 0;
 625 }
 626
 627
 628 /* Periodic cleanup tasks */
 629 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
 630 {
 631         struct hapd_interfaces *interfaces = eloop_ctx;
 632
 633         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 634                                hostapd_periodic, interfaces, NULL);
 635         hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
 636 }
 637
 638
 639 int main(int argc, char *argv[])
 640 {
 641         struct hapd_interfaces interfaces;
 642         int ret = 1;
 643         size_t i, j;
 644         int c, debug = 0, daemonize = 0;
 645         char *pid_file = NULL;
 646         const char *log_file = NULL;
 647         const char *entropy_file = NULL;
 648         char **bss_config = NULL, **tmp_bss;
 649         size_t num_bss_configs = 0;
 650 #ifdef CONFIG_DEBUG_LINUX_TRACING
 651         int enable_trace_dbg = 0;
 652 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 653         int start_ifaces_in_sync = 0;
 654         char **if_names = NULL;
 655         size_t if_names_size = 0;
 656
 657         if (os_program_init())
 658                 return -1;
 659
 660         os_memset(&interfaces, 0, sizeof(interfaces));
 661         interfaces.reload_config = hostapd_reload_config;
 662         interfaces.config_read_cb = hostapd_config_read;
 663         interfaces.for_each_interface = hostapd_for_each_interface;
 664         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
 665         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
 666         interfaces.driver_init = hostapd_driver_init;
 667         interfaces.global_iface_path = NULL;
 668         interfaces.global_iface_name = NULL;
 669         interfaces.global_ctrl_sock = -1;
 670         dl_list_init(&interfaces.global_ctrl_dst);
 671 #ifdef CONFIG_ETH_P_OUI
 672         dl_list_init(&interfaces.eth_p_oui);
 673 #endif /* CONFIG_ETH_P_OUI */
 674 #ifdef CONFIG_DPP
 675         interfaces.dpp = dpp_global_init();
 676         if (!interfaces.dpp)
 677                 return -1;
 678 #endif /* CONFIG_DPP */
 679
 680         for (;;) {
 681                 c = getopt(argc, argv, "b:Bde:f:hi:KP:sSTtu:vg:G:");
 682                 if (c < 0)
 683                         break;
 684                 switch (c) {
 685                 case 'h':
 686                         usage();
 687                         break;
 688                 case 'd':
 689                         debug++;
 690                         if (wpa_debug_level > 0)
 691                                 wpa_debug_level--;
 692                         break;
 693                 case 'B':
 694                         daemonize++;
 695                         break;
 696                 case 'e':
 697                         entropy_file = optarg;
 698                         break;
 699                 case 'f':
 700                         log_file = optarg;
 701                         break;
 702                 case 'K':
 703                         wpa_debug_show_keys++;
 704                         break;
 705                 case 'P':
 706                         os_free(pid_file);
 707                         pid_file = os_rel2abs_path(optarg);
 708                         break;
 709                 case 't':
 710                         wpa_debug_timestamp++;
 711                         break;
 712 #ifdef CONFIG_DEBUG_LINUX_TRACING
 713                 case 'T':
 714                         enable_trace_dbg = 1;
 715                         break;
 716 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 717                 case 'v':
 718                         show_version();
 719                         exit(1);
 720                         break;
 721                 case 'g':
 722                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
 723                                 return -1;
 724                         break;
 725                 case 'G':
 726                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
 727                                 return -1;
 728                         break;
 729                 case 'b':
 730                         tmp_bss = os_realloc_array(bss_config,
 731                                                    num_bss_configs + 1,
 732                                                    sizeof(char *));
 733                         if (tmp_bss == NULL)
 734                                 goto out;
 735                         bss_config = tmp_bss;
 736                         bss_config[num_bss_configs++] = optarg;
 737                         break;
 738 #ifdef CONFIG_DEBUG_SYSLOG
 739                 case 's':
 740                         wpa_debug_syslog = 1;
 741                         break;
 742 #endif /* CONFIG_DEBUG_SYSLOG */
 743                 case 'S':
 744                         start_ifaces_in_sync = 1;
 745                         break;
 746 #ifdef CONFIG_WPS
 747                 case 'u':
 748                         return gen_uuid(optarg);
 749 #endif /* CONFIG_WPS */
 750                 case 'i':
 751                         if (hostapd_get_interface_names(&if_names,
 752                                                         &if_names_size, optarg))
 753                                 goto out;
 754                         break;
 755                 default:
 756                         usage();
 757                         break;
 758                 }
 759         }
 760
 761         if (optind == argc && interfaces.global_iface_path == NULL &&
 762             num_bss_configs == 0)
 763                 usage();
 764
 765         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
 766
 767         if (log_file)
 768                 wpa_debug_open_file(log_file);
 769         else
 770                 wpa_debug_setup_stdout();
 771 #ifdef CONFIG_DEBUG_SYSLOG
 772         if (wpa_debug_syslog)
 773                 wpa_debug_open_syslog();
 774 #endif /* CONFIG_DEBUG_SYSLOG */
 775 #ifdef CONFIG_DEBUG_LINUX_TRACING
 776         if (enable_trace_dbg) {
 777                 int tret = wpa_debug_open_linux_tracing();
 778                 if (tret) {
 779                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
 780                         return -1;
 781                 }
 782         }
 783 #endif /* CONFIG_DEBUG_LINUX_TRACING */
 784
 785         interfaces.count = argc - optind;
 786         if (interfaces.count || num_bss_configs) {
 787                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
 788                                              sizeof(struct hostapd_iface *));
 789                 if (interfaces.iface == NULL) {
 790                         wpa_printf(MSG_ERROR, "malloc failed");
 791                         return -1;
 792                 }
 793         }
 794
 795         if (hostapd_global_init(&interfaces, entropy_file)) {
 796                 wpa_printf(MSG_ERROR, "Failed to initialize global context");
 797                 return -1;
 798         }
 799
 800         eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
 801                                hostapd_periodic, &interfaces, NULL);
 802
 803         if (fst_global_init()) {
 804                 wpa_printf(MSG_ERROR,
 805                            "Failed to initialize global FST context");
 806                 goto out;
 807         }
 808
 809 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
 810         if (!fst_global_add_ctrl(fst_ctrl_cli))
 811                 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
 812 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
 813
 814         /* Allocate and parse configuration for full interface files */
 815         for (i = 0; i < interfaces.count; i++) {
 816                 char *if_name = NULL;
 817
 818                 if (i < if_names_size)
 819                         if_name = if_names[i];
 820
 821                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
 822                                                              if_name,
 823                                                              argv[optind + i],
 824                                                              debug);
 825                 if (!interfaces.iface[i]) {
 826                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
 827                         goto out;
 828                 }
 829                 if (start_ifaces_in_sync)
 830                         interfaces.iface[i]->need_to_start_in_sync = 1;
 831         }
 832
 833         /* Allocate and parse configuration for per-BSS files */
 834         for (i = 0; i < num_bss_configs; i++) {
 835                 struct hostapd_iface *iface;
 836                 char *fname;
 837
 838                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
 839                 fname = os_strchr(bss_config[i], ':');
 840                 if (fname == NULL) {
 841                         wpa_printf(MSG_ERROR,
 842                                    "Invalid BSS config identifier '%s'",
 843                                    bss_config[i]);
 844                         goto out;
 845                 }
 846                 *fname++ = '\0';
 847                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
 848                                                    fname, debug);
 849                 if (iface == NULL)
 850                         goto out;
 851                 for (j = 0; j < interfaces.count; j++) {
 852                         if (interfaces.iface[j] == iface)
 853                                 break;
 854                 }
 855                 if (j == interfaces.count) {
 856                         struct hostapd_iface **tmp;
 857                         tmp = os_realloc_array(interfaces.iface,
 858                                                interfaces.count + 1,
 859                                                sizeof(struct hostapd_iface *));
 860                         if (tmp == NULL) {
 861                                 hostapd_interface_deinit_free(iface);
 862                                 goto out;
 863                         }
 864                         interfaces.iface = tmp;
 865                         interfaces.iface[interfaces.count++] = iface;
 866                 }
 867         }
 868
 869         /*
 870          * Enable configured interfaces. Depending on channel configuration,
 871          * this may complete full initialization before returning or use a
 872          * callback mechanism to complete setup in case of operations like HT
 873          * co-ex scans, ACS, or DFS are needed to determine channel parameters.
 874          * In such case, the interface will be enabled from eloop context within
 875          * hostapd_global_run().
 876          */
 877         interfaces.terminate_on_error = interfaces.count;
 878         for (i = 0; i < interfaces.count; i++) {
 879                 if (hostapd_driver_init(interfaces.iface[i]) ||
 880                     hostapd_setup_interface(interfaces.iface[i]))
 881                         goto out;
 882         }
 883
 884         hostapd_global_ctrl_iface_init(&interfaces);
 885
 886         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
 887                 wpa_printf(MSG_ERROR, "Failed to start eloop");
 888                 goto out;
 889         }
 890
 891         ret = 0;
 892
 893  out:
 894         hostapd_global_ctrl_iface_deinit(&interfaces);
 895         /* Deinitialize all interfaces */
 896         for (i = 0; i < interfaces.count; i++) {
 897                 if (!interfaces.iface[i])
 898                         continue;
 899                 interfaces.iface[i]->driver_ap_teardown =
 900                         !!(interfaces.iface[i]->drv_flags &
 901                            WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 902                 hostapd_interface_deinit_free(interfaces.iface[i]);
 903         }
 904         os_free(interfaces.iface);
 905
 906 #ifdef CONFIG_DPP
 907         dpp_global_deinit(interfaces.dpp);
 908 #endif /* CONFIG_DPP */
 909
 910         if (interfaces.eloop_initialized)
 911                 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
 912         hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
 913         os_free(pid_file);
 914
 915         wpa_debug_close_syslog();
 916         if (log_file)
 917                 wpa_debug_close_file();
 918         wpa_debug_close_linux_tracing();
 919
 920         os_free(bss_config);
 921
 922         for (i = 0; i < if_names_size; i++)
 923                 os_free(if_names[i]);
 924         os_free(if_names);
 925
 926         fst_global_deinit();
 927
 928         os_program_deinit();
 929
 930         return ret;
 931 }