src/ap/hostapd.c

   1 /*
   2  * hostapd / Initialization and configuration
   3  * Copyright (c) 2002-2013, 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
  11 #include "utils/common.h"
  12 #include "utils/eloop.h"
  13 #include "common/ieee802_11_defs.h"
  14 #include "common/wpa_ctrl.h"
  15 #include "radius/radius_client.h"
  16 #include "radius/radius_das.h"
  17 #include "drivers/driver.h"
  18 #include "hostapd.h"
  19 #include "authsrv.h"
  20 #include "sta_info.h"
  21 #include "accounting.h"
  22 #include "ap_list.h"
  23 #include "beacon.h"
  24 #include "iapp.h"
  25 #include "ieee802_1x.h"
  26 #include "ieee802_11_auth.h"
  27 #include "vlan_init.h"
  28 #include "wpa_auth.h"
  29 #include "wps_hostapd.h"
  30 #include "hw_features.h"
  31 #include "wpa_auth_glue.h"
  32 #include "ap_drv_ops.h"
  33 #include "ap_config.h"
  34 #include "p2p_hostapd.h"
  35 #include "gas_serv.h"
  36 #include "dfs.h"
  37
  38
  39 static int hostapd_flush_old_stations(struct hostapd_data *hapd, u16 reason);
  40 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd);
  41 static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd);
  42 static int setup_interface2(struct hostapd_iface *iface);
  43 static void channel_list_update_timeout(void *eloop_ctx, void *timeout_ctx);
  44
  45 extern int wpa_debug_level;
  46 extern struct wpa_driver_ops *wpa_drivers[];
  47
  48
  49 int hostapd_for_each_interface(struct hapd_interfaces *interfaces,
  50                                int (*cb)(struct hostapd_iface *iface,
  51                                          void *ctx), void *ctx)
  52 {
  53         size_t i;
  54         int ret;
  55
  56         for (i = 0; i < interfaces->count; i++) {
  57                 ret = cb(interfaces->iface[i], ctx);
  58                 if (ret)
  59                         return ret;
  60         }
  61
  62         return 0;
  63 }
  64
  65
  66 static void hostapd_reload_bss(struct hostapd_data *hapd)
  67 {
  68         struct hostapd_ssid *ssid;
  69
  70 #ifndef CONFIG_NO_RADIUS
  71         radius_client_reconfig(hapd->radius, hapd->conf->radius);
  72 #endif /* CONFIG_NO_RADIUS */
  73
  74         ssid = &hapd->conf->ssid;
  75         if (!ssid->wpa_psk_set && ssid->wpa_psk && !ssid->wpa_psk->next &&
  76             ssid->wpa_passphrase_set && ssid->wpa_passphrase) {
  77                 /*
  78                  * Force PSK to be derived again since SSID or passphrase may
  79                  * have changed.
  80                  */
  81                 os_free(ssid->wpa_psk);
  82                 ssid->wpa_psk = NULL;
  83         }
  84         if (hostapd_setup_wpa_psk(hapd->conf)) {
  85                 wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
  86                            "after reloading configuration");
  87         }
  88
  89         if (hapd->conf->ieee802_1x || hapd->conf->wpa)
  90                 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1);
  91         else
  92                 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
  93
  94         if (hapd->conf->wpa && hapd->wpa_auth == NULL) {
  95                 hostapd_setup_wpa(hapd);
  96                 if (hapd->wpa_auth)
  97                         wpa_init_keys(hapd->wpa_auth);
  98         } else if (hapd->conf->wpa) {
  99                 const u8 *wpa_ie;
 100                 size_t wpa_ie_len;
 101                 hostapd_reconfig_wpa(hapd);
 102                 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
 103                 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len))
 104                         wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
 105                                    "the kernel driver.");
 106         } else if (hapd->wpa_auth) {
 107                 wpa_deinit(hapd->wpa_auth);
 108                 hapd->wpa_auth = NULL;
 109                 hostapd_set_privacy(hapd, 0);
 110                 hostapd_setup_encryption(hapd->conf->iface, hapd);
 111                 hostapd_set_generic_elem(hapd, (u8 *) "", 0);
 112         }
 113
 114         ieee802_11_set_beacon(hapd);
 115         hostapd_update_wps(hapd);
 116
 117         if (hapd->conf->ssid.ssid_set &&
 118             hostapd_set_ssid(hapd, hapd->conf->ssid.ssid,
 119                              hapd->conf->ssid.ssid_len)) {
 120                 wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
 121                 /* try to continue */
 122         }
 123         wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
 124 }
 125
 126
 127 static void hostapd_clear_old(struct hostapd_iface *iface)
 128 {
 129         size_t j;
 130
 131         /*
 132          * Deauthenticate all stations since the new configuration may not
 133          * allow them to use the BSS anymore.
 134          */
 135         for (j = 0; j < iface->num_bss; j++) {
 136                 hostapd_flush_old_stations(iface->bss[j],
 137                                            WLAN_REASON_PREV_AUTH_NOT_VALID);
 138                 hostapd_broadcast_wep_clear(iface->bss[j]);
 139
 140 #ifndef CONFIG_NO_RADIUS
 141                 /* TODO: update dynamic data based on changed configuration
 142                  * items (e.g., open/close sockets, etc.) */
 143                 radius_client_flush(iface->bss[j]->radius, 0);
 144 #endif /* CONFIG_NO_RADIUS */
 145         }
 146 }
 147
 148
 149 int hostapd_reload_config(struct hostapd_iface *iface)
 150 {
 151         struct hostapd_data *hapd = iface->bss[0];
 152         struct hostapd_config *newconf, *oldconf;
 153         size_t j;
 154
 155         if (iface->config_fname == NULL) {
 156                 /* Only in-memory config in use - assume it has been updated */
 157                 hostapd_clear_old(iface);
 158                 for (j = 0; j < iface->num_bss; j++)
 159                         hostapd_reload_bss(iface->bss[j]);
 160                 return 0;
 161         }
 162
 163         if (iface->interfaces == NULL ||
 164             iface->interfaces->config_read_cb == NULL)
 165                 return -1;
 166         newconf = iface->interfaces->config_read_cb(iface->config_fname);
 167         if (newconf == NULL)
 168                 return -1;
 169
 170         hostapd_clear_old(iface);
 171
 172         oldconf = hapd->iconf;
 173         iface->conf = newconf;
 174
 175         for (j = 0; j < iface->num_bss; j++) {
 176                 hapd = iface->bss[j];
 177                 hapd->iconf = newconf;
 178                 hapd->conf = newconf->bss[j];
 179                 hostapd_reload_bss(hapd);
 180         }
 181
 182         hostapd_config_free(oldconf);
 183
 184
 185         return 0;
 186 }
 187
 188
 189 static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
 190                                               char *ifname)
 191 {
 192         int i;
 193
 194         for (i = 0; i < NUM_WEP_KEYS; i++) {
 195                 if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,
 196                                         0, NULL, 0, NULL, 0)) {
 197                         wpa_printf(MSG_DEBUG, "Failed to clear default "
 198                                    "encryption keys (ifname=%s keyidx=%d)",
 199                                    ifname, i);
 200                 }
 201         }
 202 #ifdef CONFIG_IEEE80211W
 203         if (hapd->conf->ieee80211w) {
 204                 for (i = NUM_WEP_KEYS; i < NUM_WEP_KEYS + 2; i++) {
 205                         if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_NONE,
 206                                                 NULL, i, 0, NULL,
 207                                                 0, NULL, 0)) {
 208                                 wpa_printf(MSG_DEBUG, "Failed to clear "
 209                                            "default mgmt encryption keys "
 210                                            "(ifname=%s keyidx=%d)", ifname, i);
 211                         }
 212                 }
 213         }
 214 #endif /* CONFIG_IEEE80211W */
 215 }
 216
 217
 218 static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
 219 {
 220         hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
 221         return 0;
 222 }
 223
 224
 225 static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
 226 {
 227         int errors = 0, idx;
 228         struct hostapd_ssid *ssid = &hapd->conf->ssid;
 229
 230         idx = ssid->wep.idx;
 231         if (ssid->wep.default_len &&
 232             hostapd_drv_set_key(hapd->conf->iface,
 233                                 hapd, WPA_ALG_WEP, broadcast_ether_addr, idx,
 234                                 1, NULL, 0, ssid->wep.key[idx],
 235                                 ssid->wep.len[idx])) {
 236                 wpa_printf(MSG_WARNING, "Could not set WEP encryption.");
 237                 errors++;
 238         }
 239
 240         return errors;
 241 }
 242
 243
 244 static void hostapd_free_hapd_data(struct hostapd_data *hapd)
 245 {
 246         iapp_deinit(hapd->iapp);
 247         hapd->iapp = NULL;
 248         accounting_deinit(hapd);
 249         hostapd_deinit_wpa(hapd);
 250         vlan_deinit(hapd);
 251         hostapd_acl_deinit(hapd);
 252 #ifndef CONFIG_NO_RADIUS
 253         radius_client_deinit(hapd->radius);
 254         hapd->radius = NULL;
 255         radius_das_deinit(hapd->radius_das);
 256         hapd->radius_das = NULL;
 257 #endif /* CONFIG_NO_RADIUS */
 258
 259         hostapd_deinit_wps(hapd);
 260
 261         authsrv_deinit(hapd);
 262
 263         if (hostapd_if_remove(hapd, WPA_IF_AP_BSS, hapd->conf->iface)) {
 264                 wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s",
 265                            hapd->conf->iface);
 266         }
 267
 268         os_free(hapd->probereq_cb);
 269         hapd->probereq_cb = NULL;
 270
 271 #ifdef CONFIG_P2P
 272         wpabuf_free(hapd->p2p_beacon_ie);
 273         hapd->p2p_beacon_ie = NULL;
 274         wpabuf_free(hapd->p2p_probe_resp_ie);
 275         hapd->p2p_probe_resp_ie = NULL;
 276 #endif /* CONFIG_P2P */
 277
 278         wpabuf_free(hapd->time_adv);
 279
 280 #ifdef CONFIG_INTERWORKING
 281         gas_serv_deinit(hapd);
 282 #endif /* CONFIG_INTERWORKING */
 283
 284 #ifdef CONFIG_SQLITE
 285         os_free(hapd->tmp_eap_user.identity);
 286         os_free(hapd->tmp_eap_user.password);
 287 #endif /* CONFIG_SQLITE */
 288 }
 289
 290
 291 /**
 292  * hostapd_cleanup - Per-BSS cleanup (deinitialization)
 293  * @hapd: Pointer to BSS data
 294  *
 295  * This function is used to free all per-BSS data structures and resources.
 296  * This gets called in a loop for each BSS between calls to
 297  * hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
 298  * is deinitialized. Most of the modules that are initialized in
 299  * hostapd_setup_bss() are deinitialized here.
 300  */
 301 static void hostapd_cleanup(struct hostapd_data *hapd)
 302 {
 303         if (hapd->iface->interfaces &&
 304             hapd->iface->interfaces->ctrl_iface_deinit)
 305                 hapd->iface->interfaces->ctrl_iface_deinit(hapd);
 306         hostapd_free_hapd_data(hapd);
 307 }
 308
 309
 310 /**
 311  * hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
 312  * @iface: Pointer to interface data
 313  *
 314  * This function is called before per-BSS data structures are deinitialized
 315  * with hostapd_cleanup().
 316  */
 317 static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
 318 {
 319 }
 320
 321
 322 static void hostapd_cleanup_iface_partial(struct hostapd_iface *iface)
 323 {
 324         hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
 325         iface->hw_features = NULL;
 326         os_free(iface->current_rates);
 327         iface->current_rates = NULL;
 328         os_free(iface->basic_rates);
 329         iface->basic_rates = NULL;
 330         ap_list_deinit(iface);
 331 }
 332
 333
 334 /**
 335  * hostapd_cleanup_iface - Complete per-interface cleanup
 336  * @iface: Pointer to interface data
 337  *
 338  * This function is called after per-BSS data structures are deinitialized
 339  * with hostapd_cleanup().
 340  */
 341 static void hostapd_cleanup_iface(struct hostapd_iface *iface)
 342 {
 343         eloop_cancel_timeout(channel_list_update_timeout, iface, NULL);
 344
 345         hostapd_cleanup_iface_partial(iface);
 346         hostapd_config_free(iface->conf);
 347         iface->conf = NULL;
 348
 349         os_free(iface->config_fname);
 350         os_free(iface->bss);
 351         os_free(iface);
 352 }
 353
 354
 355 static void hostapd_clear_wep(struct hostapd_data *hapd)
 356 {
 357         if (hapd->drv_priv) {
 358                 hostapd_set_privacy(hapd, 0);
 359                 hostapd_broadcast_wep_clear(hapd);
 360         }
 361 }
 362
 363
 364 static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
 365 {
 366         int i;
 367
 368         hostapd_broadcast_wep_set(hapd);
 369
 370         if (hapd->conf->ssid.wep.default_len) {
 371                 hostapd_set_privacy(hapd, 1);
 372                 return 0;
 373         }
 374
 375         /*
 376          * When IEEE 802.1X is not enabled, the driver may need to know how to
 377          * set authentication algorithms for static WEP.
 378          */
 379         hostapd_drv_set_authmode(hapd, hapd->conf->auth_algs);
 380
 381         for (i = 0; i < 4; i++) {
 382                 if (hapd->conf->ssid.wep.key[i] &&
 383                     hostapd_drv_set_key(iface, hapd, WPA_ALG_WEP, NULL, i,
 384                                         i == hapd->conf->ssid.wep.idx, NULL, 0,
 385                                         hapd->conf->ssid.wep.key[i],
 386                                         hapd->conf->ssid.wep.len[i])) {
 387                         wpa_printf(MSG_WARNING, "Could not set WEP "
 388                                    "encryption.");
 389                         return -1;
 390                 }
 391                 if (hapd->conf->ssid.wep.key[i] &&
 392                     i == hapd->conf->ssid.wep.idx)
 393                         hostapd_set_privacy(hapd, 1);
 394         }
 395
 396         return 0;
 397 }
 398
 399
 400 static int hostapd_flush_old_stations(struct hostapd_data *hapd, u16 reason)
 401 {
 402         int ret = 0;
 403         u8 addr[ETH_ALEN];
 404
 405         if (hostapd_drv_none(hapd) || hapd->drv_priv == NULL)
 406                 return 0;
 407
 408         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "Flushing old station entries");
 409         if (hostapd_flush(hapd)) {
 410                 wpa_msg(hapd->msg_ctx, MSG_WARNING, "Could not connect to "
 411                         "kernel driver");
 412                 ret = -1;
 413         }
 414         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "Deauthenticate all stations");
 415         os_memset(addr, 0xff, ETH_ALEN);
 416         hostapd_drv_sta_deauth(hapd, addr, reason);
 417         hostapd_free_stas(hapd);
 418
 419         return ret;
 420 }
 421
 422
 423 /**
 424  * hostapd_validate_bssid_configuration - Validate BSSID configuration
 425  * @iface: Pointer to interface data
 426  * Returns: 0 on success, -1 on failure
 427  *
 428  * This function is used to validate that the configured BSSIDs are valid.
 429  */
 430 static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
 431 {
 432         u8 mask[ETH_ALEN] = { 0 };
 433         struct hostapd_data *hapd = iface->bss[0];
 434         unsigned int i = iface->conf->num_bss, bits = 0, j;
 435         int auto_addr = 0;
 436
 437         if (hostapd_drv_none(hapd))
 438                 return 0;
 439
 440         /* Generate BSSID mask that is large enough to cover the BSSIDs. */
 441
 442         /* Determine the bits necessary to cover the number of BSSIDs. */
 443         for (i--; i; i >>= 1)
 444                 bits++;
 445
 446         /* Determine the bits necessary to any configured BSSIDs,
 447            if they are higher than the number of BSSIDs. */
 448         for (j = 0; j < iface->conf->num_bss; j++) {
 449                 if (hostapd_mac_comp_empty(iface->conf->bss[j]->bssid) == 0) {
 450                         if (j)
 451                                 auto_addr++;
 452                         continue;
 453                 }
 454
 455                 for (i = 0; i < ETH_ALEN; i++) {
 456                         mask[i] |=
 457                                 iface->conf->bss[j]->bssid[i] ^
 458                                 hapd->own_addr[i];
 459                 }
 460         }
 461
 462         if (!auto_addr)
 463                 goto skip_mask_ext;
 464
 465         for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
 466                 ;
 467         j = 0;
 468         if (i < ETH_ALEN) {
 469                 j = (5 - i) * 8;
 470
 471                 while (mask[i] != 0) {
 472                         mask[i] >>= 1;
 473                         j++;
 474                 }
 475         }
 476
 477         if (bits < j)
 478                 bits = j;
 479
 480         if (bits > 40) {
 481                 wpa_printf(MSG_ERROR, "Too many bits in the BSSID mask (%u)",
 482                            bits);
 483                 return -1;
 484         }
 485
 486         os_memset(mask, 0xff, ETH_ALEN);
 487         j = bits / 8;
 488         for (i = 5; i > 5 - j; i--)
 489                 mask[i] = 0;
 490         j = bits % 8;
 491         while (j--)
 492                 mask[i] <<= 1;
 493
 494 skip_mask_ext:
 495         wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
 496                    (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
 497
 498         if (!auto_addr)
 499                 return 0;
 500
 501         for (i = 0; i < ETH_ALEN; i++) {
 502                 if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
 503                         wpa_printf(MSG_ERROR, "Invalid BSSID mask " MACSTR
 504                                    " for start address " MACSTR ".",
 505                                    MAC2STR(mask), MAC2STR(hapd->own_addr));
 506                         wpa_printf(MSG_ERROR, "Start address must be the "
 507                                    "first address in the block (i.e., addr "
 508                                    "AND mask == addr).");
 509                         return -1;
 510                 }
 511         }
 512
 513         return 0;
 514 }
 515
 516
 517 static int mac_in_conf(struct hostapd_config *conf, const void *a)
 518 {
 519         size_t i;
 520
 521         for (i = 0; i < conf->num_bss; i++) {
 522                 if (hostapd_mac_comp(conf->bss[i]->bssid, a) == 0) {
 523                         return 1;
 524                 }
 525         }
 526
 527         return 0;
 528 }
 529
 530
 531 #ifndef CONFIG_NO_RADIUS
 532
 533 static int hostapd_das_nas_mismatch(struct hostapd_data *hapd,
 534                                     struct radius_das_attrs *attr)
 535 {
 536         /* TODO */
 537         return 0;
 538 }
 539
 540
 541 static struct sta_info * hostapd_das_find_sta(struct hostapd_data *hapd,
 542                                               struct radius_das_attrs *attr)
 543 {
 544         struct sta_info *sta = NULL;
 545         char buf[128];
 546
 547         if (attr->sta_addr)
 548                 sta = ap_get_sta(hapd, attr->sta_addr);
 549
 550         if (sta == NULL && attr->acct_session_id &&
 551             attr->acct_session_id_len == 17) {
 552                 for (sta = hapd->sta_list; sta; sta = sta->next) {
 553                         os_snprintf(buf, sizeof(buf), "%08X-%08X",
 554                                     sta->acct_session_id_hi,
 555                                     sta->acct_session_id_lo);
 556                         if (os_memcmp(attr->acct_session_id, buf, 17) == 0)
 557                                 break;
 558                 }
 559         }
 560
 561         if (sta == NULL && attr->cui) {
 562                 for (sta = hapd->sta_list; sta; sta = sta->next) {
 563                         struct wpabuf *cui;
 564                         cui = ieee802_1x_get_radius_cui(sta->eapol_sm);
 565                         if (cui && wpabuf_len(cui) == attr->cui_len &&
 566                             os_memcmp(wpabuf_head(cui), attr->cui,
 567                                       attr->cui_len) == 0)
 568                                 break;
 569                 }
 570         }
 571
 572         if (sta == NULL && attr->user_name) {
 573                 for (sta = hapd->sta_list; sta; sta = sta->next) {
 574                         u8 *identity;
 575                         size_t identity_len;
 576                         identity = ieee802_1x_get_identity(sta->eapol_sm,
 577                                                            &identity_len);
 578                         if (identity &&
 579                             identity_len == attr->user_name_len &&
 580                             os_memcmp(identity, attr->user_name, identity_len)
 581                             == 0)
 582                                 break;
 583                 }
 584         }
 585
 586         return sta;
 587 }
 588
 589
 590 static enum radius_das_res
 591 hostapd_das_disconnect(void *ctx, struct radius_das_attrs *attr)
 592 {
 593         struct hostapd_data *hapd = ctx;
 594         struct sta_info *sta;
 595
 596         if (hostapd_das_nas_mismatch(hapd, attr))
 597                 return RADIUS_DAS_NAS_MISMATCH;
 598
 599         sta = hostapd_das_find_sta(hapd, attr);
 600         if (sta == NULL)
 601                 return RADIUS_DAS_SESSION_NOT_FOUND;
 602
 603         hostapd_drv_sta_deauth(hapd, sta->addr,
 604                                WLAN_REASON_PREV_AUTH_NOT_VALID);
 605         ap_sta_deauthenticate(hapd, sta, WLAN_REASON_PREV_AUTH_NOT_VALID);
 606
 607         return RADIUS_DAS_SUCCESS;
 608 }
 609
 610 #endif /* CONFIG_NO_RADIUS */
 611
 612
 613 /**
 614  * hostapd_setup_bss - Per-BSS setup (initialization)
 615  * @hapd: Pointer to BSS data
 616  * @first: Whether this BSS is the first BSS of an interface; -1 = not first,
 617  *      but interface may exist
 618  *
 619  * This function is used to initialize all per-BSS data structures and
 620  * resources. This gets called in a loop for each BSS when an interface is
 621  * initialized. Most of the modules that are initialized here will be
 622  * deinitialized in hostapd_cleanup().
 623  */
 624 static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
 625 {
 626         struct hostapd_bss_config *conf = hapd->conf;
 627         u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
 628         int ssid_len, set_ssid;
 629         char force_ifname[IFNAMSIZ];
 630         u8 if_addr[ETH_ALEN];
 631
 632         if (!first || first == -1) {
 633                 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
 634                         /* Allocate the next available BSSID. */
 635                         do {
 636                                 inc_byte_array(hapd->own_addr, ETH_ALEN);
 637                         } while (mac_in_conf(hapd->iconf, hapd->own_addr));
 638                 } else {
 639                         /* Allocate the configured BSSID. */
 640                         os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
 641
 642                         if (hostapd_mac_comp(hapd->own_addr,
 643                                              hapd->iface->bss[0]->own_addr) ==
 644                             0) {
 645                                 wpa_printf(MSG_ERROR, "BSS '%s' may not have "
 646                                            "BSSID set to the MAC address of "
 647                                            "the radio", hapd->conf->iface);
 648                                 return -1;
 649                         }
 650                 }
 651
 652                 if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS,
 653                                    hapd->conf->iface, hapd->own_addr, hapd,
 654                                    &hapd->drv_priv, force_ifname, if_addr,
 655                                    hapd->conf->bridge[0] ? hapd->conf->bridge :
 656                                    NULL, first == -1)) {
 657                         wpa_printf(MSG_ERROR, "Failed to add BSS (BSSID="
 658                                    MACSTR ")", MAC2STR(hapd->own_addr));
 659                         return -1;
 660                 }
 661         }
 662
 663         if (conf->wmm_enabled < 0)
 664                 conf->wmm_enabled = hapd->iconf->ieee80211n;
 665
 666         hostapd_flush_old_stations(hapd, WLAN_REASON_PREV_AUTH_NOT_VALID);
 667         hostapd_set_privacy(hapd, 0);
 668
 669         hostapd_broadcast_wep_clear(hapd);
 670         if (hostapd_setup_encryption(hapd->conf->iface, hapd))
 671                 return -1;
 672
 673         /*
 674          * Fetch the SSID from the system and use it or,
 675          * if one was specified in the config file, verify they
 676          * match.
 677          */
 678         ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
 679         if (ssid_len < 0) {
 680                 wpa_printf(MSG_ERROR, "Could not read SSID from system");
 681                 return -1;
 682         }
 683         if (conf->ssid.ssid_set) {
 684                 /*
 685                  * If SSID is specified in the config file and it differs
 686                  * from what is being used then force installation of the
 687                  * new SSID.
 688                  */
 689                 set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
 690                             os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
 691         } else {
 692                 /*
 693                  * No SSID in the config file; just use the one we got
 694                  * from the system.
 695                  */
 696                 set_ssid = 0;
 697                 conf->ssid.ssid_len = ssid_len;
 698                 os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
 699         }
 700
 701         if (!hostapd_drv_none(hapd)) {
 702                 wpa_printf(MSG_ERROR, "Using interface %s with hwaddr " MACSTR
 703                            " and ssid \"%s\"",
 704                            hapd->conf->iface, MAC2STR(hapd->own_addr),
 705                            wpa_ssid_txt(hapd->conf->ssid.ssid,
 706                                         hapd->conf->ssid.ssid_len));
 707         }
 708
 709         if (hostapd_setup_wpa_psk(conf)) {
 710                 wpa_printf(MSG_ERROR, "WPA-PSK setup failed.");
 711                 return -1;
 712         }
 713
 714         /* Set SSID for the kernel driver (to be used in beacon and probe
 715          * response frames) */
 716         if (set_ssid && hostapd_set_ssid(hapd, conf->ssid.ssid,
 717                                          conf->ssid.ssid_len)) {
 718                 wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
 719                 return -1;
 720         }
 721
 722         if (wpa_debug_level == MSG_MSGDUMP)
 723                 conf->radius->msg_dumps = 1;
 724 #ifndef CONFIG_NO_RADIUS
 725         hapd->radius = radius_client_init(hapd, conf->radius);
 726         if (hapd->radius == NULL) {
 727                 wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
 728                 return -1;
 729         }
 730
 731         if (hapd->conf->radius_das_port) {
 732                 struct radius_das_conf das_conf;
 733                 os_memset(&das_conf, 0, sizeof(das_conf));
 734                 das_conf.port = hapd->conf->radius_das_port;
 735                 das_conf.shared_secret = hapd->conf->radius_das_shared_secret;
 736                 das_conf.shared_secret_len =
 737                         hapd->conf->radius_das_shared_secret_len;
 738                 das_conf.client_addr = &hapd->conf->radius_das_client_addr;
 739                 das_conf.time_window = hapd->conf->radius_das_time_window;
 740                 das_conf.require_event_timestamp =
 741                         hapd->conf->radius_das_require_event_timestamp;
 742                 das_conf.ctx = hapd;
 743                 das_conf.disconnect = hostapd_das_disconnect;
 744                 hapd->radius_das = radius_das_init(&das_conf);
 745                 if (hapd->radius_das == NULL) {
 746                         wpa_printf(MSG_ERROR, "RADIUS DAS initialization "
 747                                    "failed.");
 748                         return -1;
 749                 }
 750         }
 751 #endif /* CONFIG_NO_RADIUS */
 752
 753         if (hostapd_acl_init(hapd)) {
 754                 wpa_printf(MSG_ERROR, "ACL initialization failed.");
 755                 return -1;
 756         }
 757         if (hostapd_init_wps(hapd, conf))
 758                 return -1;
 759
 760         if (authsrv_init(hapd) < 0)
 761                 return -1;
 762
 763         if (ieee802_1x_init(hapd)) {
 764                 wpa_printf(MSG_ERROR, "IEEE 802.1X initialization failed.");
 765                 return -1;
 766         }
 767
 768         if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
 769                 return -1;
 770
 771         if (accounting_init(hapd)) {
 772                 wpa_printf(MSG_ERROR, "Accounting initialization failed.");
 773                 return -1;
 774         }
 775
 776         if (hapd->conf->ieee802_11f &&
 777             (hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
 778                 wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
 779                            "failed.");
 780                 return -1;
 781         }
 782
 783 #ifdef CONFIG_INTERWORKING
 784         if (gas_serv_init(hapd)) {
 785                 wpa_printf(MSG_ERROR, "GAS server initialization failed");
 786                 return -1;
 787         }
 788
 789         if (conf->qos_map_set_len &&
 790             hostapd_drv_set_qos_map(hapd, conf->qos_map_set,
 791                                     conf->qos_map_set_len)) {
 792                 wpa_printf(MSG_ERROR, "Failed to initialize QoS Map");
 793                 return -1;
 794         }
 795 #endif /* CONFIG_INTERWORKING */
 796
 797         if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
 798                 wpa_printf(MSG_ERROR, "VLAN initialization failed.");
 799                 return -1;
 800         }
 801
 802         if (!hapd->conf->start_disabled)
 803                 ieee802_11_set_beacon(hapd);
 804
 805         if (hapd->wpa_auth && wpa_init_keys(hapd->wpa_auth) < 0)
 806                 return -1;
 807
 808         if (hapd->driver && hapd->driver->set_operstate)
 809                 hapd->driver->set_operstate(hapd->drv_priv, 1);
 810
 811         return 0;
 812 }
 813
 814
 815 static void hostapd_tx_queue_params(struct hostapd_iface *iface)
 816 {
 817         struct hostapd_data *hapd = iface->bss[0];
 818         int i;
 819         struct hostapd_tx_queue_params *p;
 820
 821         for (i = 0; i < NUM_TX_QUEUES; i++) {
 822                 p = &iface->conf->tx_queue[i];
 823
 824                 if (hostapd_set_tx_queue_params(hapd, i, p->aifs, p->cwmin,
 825                                                 p->cwmax, p->burst)) {
 826                         wpa_printf(MSG_DEBUG, "Failed to set TX queue "
 827                                    "parameters for queue %d.", i);
 828                         /* Continue anyway */
 829                 }
 830         }
 831 }
 832
 833
 834 static int hostapd_set_acl_list(struct hostapd_data *hapd,
 835                                 struct mac_acl_entry *mac_acl,
 836                                 int n_entries, u8 accept_acl)
 837 {
 838         struct hostapd_acl_params *acl_params;
 839         int i, err;
 840
 841         acl_params = os_zalloc(sizeof(*acl_params) +
 842                                (n_entries * sizeof(acl_params->mac_acl[0])));
 843         if (!acl_params)
 844                 return -ENOMEM;
 845
 846         for (i = 0; i < n_entries; i++)
 847                 os_memcpy(acl_params->mac_acl[i].addr, mac_acl[i].addr,
 848                           ETH_ALEN);
 849
 850         acl_params->acl_policy = accept_acl;
 851         acl_params->num_mac_acl = n_entries;
 852
 853         err = hostapd_drv_set_acl(hapd, acl_params);
 854
 855         os_free(acl_params);
 856
 857         return err;
 858 }
 859
 860
 861 static void hostapd_set_acl(struct hostapd_data *hapd)
 862 {
 863         struct hostapd_config *conf = hapd->iconf;
 864         int err;
 865         u8 accept_acl;
 866
 867         if (hapd->iface->drv_max_acl_mac_addrs == 0)
 868                 return;
 869         if (!(conf->bss[0]->num_accept_mac || conf->bss[0]->num_deny_mac))
 870                 return;
 871
 872         if (conf->bss[0]->macaddr_acl == DENY_UNLESS_ACCEPTED) {
 873                 if (conf->bss[0]->num_accept_mac) {
 874                         accept_acl = 1;
 875                         err = hostapd_set_acl_list(hapd,
 876                                                    conf->bss[0]->accept_mac,
 877                                                    conf->bss[0]->num_accept_mac,
 878                                                    accept_acl);
 879                         if (err) {
 880                                 wpa_printf(MSG_DEBUG, "Failed to set accept acl");
 881                                 return;
 882                         }
 883                 } else {
 884                         wpa_printf(MSG_DEBUG, "Mismatch between ACL Policy & Accept/deny lists file");
 885                 }
 886         } else if (conf->bss[0]->macaddr_acl == ACCEPT_UNLESS_DENIED) {
 887                 if (conf->bss[0]->num_deny_mac) {
 888                         accept_acl = 0;
 889                         err = hostapd_set_acl_list(hapd, conf->bss[0]->deny_mac,
 890                                                    conf->bss[0]->num_deny_mac,
 891                                                    accept_acl);
 892                         if (err) {
 893                                 wpa_printf(MSG_DEBUG, "Failed to set deny acl");
 894                                 return;
 895                         }
 896                 } else {
 897                         wpa_printf(MSG_DEBUG, "Mismatch between ACL Policy & Accept/deny lists file");
 898                 }
 899         }
 900 }
 901
 902
 903 static int start_ctrl_iface_bss(struct hostapd_data *hapd)
 904 {
 905         if (!hapd->iface->interfaces ||
 906             !hapd->iface->interfaces->ctrl_iface_init)
 907                 return 0;
 908
 909         if (hapd->iface->interfaces->ctrl_iface_init(hapd)) {
 910                 wpa_printf(MSG_ERROR,
 911                            "Failed to setup control interface for %s",
 912                            hapd->conf->iface);
 913                 return -1;
 914         }
 915
 916         return 0;
 917 }
 918
 919
 920 static int start_ctrl_iface(struct hostapd_iface *iface)
 921 {
 922         size_t i;
 923
 924         if (!iface->interfaces || !iface->interfaces->ctrl_iface_init)
 925                 return 0;
 926
 927         for (i = 0; i < iface->num_bss; i++) {
 928                 struct hostapd_data *hapd = iface->bss[i];
 929                 if (iface->interfaces->ctrl_iface_init(hapd)) {
 930                         wpa_printf(MSG_ERROR,
 931                                    "Failed to setup control interface for %s",
 932                                    hapd->conf->iface);
 933                         return -1;
 934                 }
 935         }
 936
 937         return 0;
 938 }
 939
 940
 941 static void channel_list_update_timeout(void *eloop_ctx, void *timeout_ctx)
 942 {
 943         struct hostapd_iface *iface = eloop_ctx;
 944
 945         if (!iface->wait_channel_update) {
 946                 wpa_printf(MSG_INFO, "Channel list update timeout, but interface was not waiting for it");
 947                 return;
 948         }
 949
 950         /*
 951          * It is possible that the existing channel list is acceptable, so try
 952          * to proceed.
 953          */
 954         wpa_printf(MSG_DEBUG, "Channel list update timeout - try to continue anyway");
 955         setup_interface2(iface);
 956 }
 957
 958
 959 void hostapd_channel_list_updated(struct hostapd_iface *iface)
 960 {
 961         if (!iface->wait_channel_update)
 962                 return;
 963
 964         wpa_printf(MSG_DEBUG, "Channel list updated - continue setup");
 965         eloop_cancel_timeout(channel_list_update_timeout, iface, NULL);
 966         setup_interface2(iface);
 967 }
 968
 969
 970 static int setup_interface(struct hostapd_iface *iface)
 971 {
 972         struct hostapd_data *hapd = iface->bss[0];
 973         size_t i;
 974
 975         if (!iface->phy[0]) {
 976                 const char *phy = hostapd_drv_get_radio_name(hapd);
 977                 if (phy) {
 978                         wpa_printf(MSG_DEBUG, "phy: %s", phy);
 979                         os_strlcpy(iface->phy, phy, sizeof(iface->phy));
 980                 }
 981         }
 982
 983         /*
 984          * Make sure that all BSSes get configured with a pointer to the same
 985          * driver interface.
 986          */
 987         for (i = 1; i < iface->num_bss; i++) {
 988                 iface->bss[i]->driver = hapd->driver;
 989                 iface->bss[i]->drv_priv = hapd->drv_priv;
 990         }
 991
 992         if (hostapd_validate_bssid_configuration(iface))
 993                 return -1;
 994
 995         /*
 996          * Initialize control interfaces early to allow external monitoring of
 997          * channel setup operations that may take considerable amount of time
 998          * especially for DFS cases.
 999          */
1000         if (start_ctrl_iface(iface))
1001                 return -1;
1002
1003         if (hapd->iconf->country[0] && hapd->iconf->country[1]) {
1004                 char country[4], previous_country[4];
1005
1006                 hostapd_set_state(iface, HAPD_IFACE_COUNTRY_UPDATE);
1007                 if (hostapd_get_country(hapd, previous_country) < 0)
1008                         previous_country[0] = '\0';
1009
1010                 os_memcpy(country, hapd->iconf->country, 3);
1011                 country[3] = '\0';
1012                 if (hostapd_set_country(hapd, country) < 0) {
1013                         wpa_printf(MSG_ERROR, "Failed to set country code");
1014                         return -1;
1015                 }
1016
1017                 wpa_printf(MSG_DEBUG, "Previous country code %s, new country code %s",
1018                            previous_country, country);
1019
1020                 if (os_strncmp(previous_country, country, 2) != 0) {
1021                         wpa_printf(MSG_DEBUG, "Continue interface setup after channel list update");
1022                         iface->wait_channel_update = 1;
1023                         eloop_register_timeout(1, 0,
1024                                                channel_list_update_timeout,
1025                                                iface, NULL);
1026                         return 0;
1027                 }
1028         }
1029
1030         return setup_interface2(iface);
1031 }
1032
1033
1034 static int setup_interface2(struct hostapd_iface *iface)
1035 {
1036         iface->wait_channel_update = 0;
1037
1038         if (hostapd_get_hw_features(iface)) {
1039                 /* Not all drivers support this yet, so continue without hw
1040                  * feature data. */
1041         } else {
1042                 int ret = hostapd_select_hw_mode(iface);
1043                 if (ret < 0) {
1044                         wpa_printf(MSG_ERROR, "Could not select hw_mode and "
1045                                    "channel. (%d)", ret);
1046                         return -1;
1047                 }
1048                 if (ret == 1) {
1049                         wpa_printf(MSG_DEBUG, "Interface initialization will be completed in a callback (ACS)");
1050                         return 0;
1051                 }
1052                 ret = hostapd_check_ht_capab(iface);
1053                 if (ret < 0)
1054                         return -1;
1055                 if (ret == 1) {
1056                         wpa_printf(MSG_DEBUG, "Interface initialization will "
1057                                    "be completed in a callback");
1058                         return 0;
1059                 }
1060
1061                 if (iface->conf->ieee80211h)
1062                         wpa_printf(MSG_DEBUG, "DFS support is enabled");
1063         }
1064         return hostapd_setup_interface_complete(iface, 0);
1065 }
1066
1067
1068 /**
1069  * hostapd_setup_interface_complete - Complete interface setup
1070  *
1071  * This function is called when previous steps in the interface setup has been
1072  * completed. This can also start operations, e.g., DFS, that will require
1073  * additional processing before interface is ready to be enabled. Such
1074  * operations will call this function from eloop callbacks when finished.
1075  */
1076 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err)
1077 {
1078         struct hostapd_data *hapd = iface->bss[0];
1079         size_t j;
1080         u8 *prev_addr;
1081
1082         if (err) {
1083                 wpa_printf(MSG_ERROR, "Interface initialization failed");
1084                 hostapd_set_state(iface, HAPD_IFACE_DISABLED);
1085                 if (iface->interfaces && iface->interfaces->terminate_on_error)
1086                         eloop_terminate();
1087                 return -1;
1088         }
1089
1090         wpa_printf(MSG_DEBUG, "Completing interface initialization");
1091         if (iface->conf->channel) {
1092 #ifdef NEED_AP_MLME
1093                 int res;
1094 #endif /* NEED_AP_MLME */
1095
1096                 iface->freq = hostapd_hw_get_freq(hapd, iface->conf->channel);
1097                 wpa_printf(MSG_DEBUG, "Mode: %s  Channel: %d  "
1098                            "Frequency: %d MHz",
1099                            hostapd_hw_mode_txt(iface->conf->hw_mode),
1100                            iface->conf->channel, iface->freq);
1101
1102 #ifdef NEED_AP_MLME
1103                 /* Check DFS */
1104                 res = hostapd_handle_dfs(iface);
1105                 if (res <= 0)
1106                         return res;
1107 #endif /* NEED_AP_MLME */
1108
1109                 if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, iface->freq,
1110                                      hapd->iconf->channel,
1111                                      hapd->iconf->ieee80211n,
1112                                      hapd->iconf->ieee80211ac,
1113                                      hapd->iconf->secondary_channel,
1114                                      hapd->iconf->vht_oper_chwidth,
1115                                      hapd->iconf->vht_oper_centr_freq_seg0_idx,
1116                                      hapd->iconf->vht_oper_centr_freq_seg1_idx)) {
1117                         wpa_printf(MSG_ERROR, "Could not set channel for "
1118                                    "kernel driver");
1119                         return -1;
1120                 }
1121         }
1122
1123         if (iface->current_mode) {
1124                 if (hostapd_prepare_rates(iface, iface->current_mode)) {
1125                         wpa_printf(MSG_ERROR, "Failed to prepare rates "
1126                                    "table.");
1127                         hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
1128                                        HOSTAPD_LEVEL_WARNING,
1129                                        "Failed to prepare rates table.");
1130                         return -1;
1131                 }
1132         }
1133
1134         if (hapd->iconf->rts_threshold > -1 &&
1135             hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
1136                 wpa_printf(MSG_ERROR, "Could not set RTS threshold for "
1137                            "kernel driver");
1138                 return -1;
1139         }
1140
1141         if (hapd->iconf->fragm_threshold > -1 &&
1142             hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
1143                 wpa_printf(MSG_ERROR, "Could not set fragmentation threshold "
1144                            "for kernel driver");
1145                 return -1;
1146         }
1147
1148         prev_addr = hapd->own_addr;
1149
1150         for (j = 0; j < iface->num_bss; j++) {
1151                 hapd = iface->bss[j];
1152                 if (j)
1153                         os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
1154                 if (hostapd_setup_bss(hapd, j == 0))
1155                         return -1;
1156                 if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
1157                         prev_addr = hapd->own_addr;
1158         }
1159         hapd = iface->bss[0];
1160
1161         hostapd_tx_queue_params(iface);
1162
1163         ap_list_init(iface);
1164
1165         hostapd_set_acl(hapd);
1166
1167         if (hostapd_driver_commit(hapd) < 0) {
1168                 wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
1169                            "configuration", __func__);
1170                 return -1;
1171         }
1172
1173         /*
1174          * WPS UPnP module can be initialized only when the "upnp_iface" is up.
1175          * If "interface" and "upnp_iface" are the same (e.g., non-bridge
1176          * mode), the interface is up only after driver_commit, so initialize
1177          * WPS after driver_commit.
1178          */
1179         for (j = 0; j < iface->num_bss; j++) {
1180                 if (hostapd_init_wps_complete(iface->bss[j]))
1181                         return -1;
1182         }
1183
1184         hostapd_set_state(iface, HAPD_IFACE_ENABLED);
1185         wpa_msg(iface->bss[0]->msg_ctx, MSG_INFO, AP_EVENT_ENABLED);
1186         if (hapd->setup_complete_cb)
1187                 hapd->setup_complete_cb(hapd->setup_complete_cb_ctx);
1188
1189         wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
1190                    iface->bss[0]->conf->iface);
1191         if (iface->interfaces && iface->interfaces->terminate_on_error > 0)
1192                 iface->interfaces->terminate_on_error--;
1193
1194         return 0;
1195 }
1196
1197
1198 /**
1199  * hostapd_setup_interface - Setup of an interface
1200  * @iface: Pointer to interface data.
1201  * Returns: 0 on success, -1 on failure
1202  *
1203  * Initializes the driver interface, validates the configuration,
1204  * and sets driver parameters based on the configuration.
1205  * Flushes old stations, sets the channel, encryption,
1206  * beacons, and WDS links based on the configuration.
1207  *
1208  * If interface setup requires more time, e.g., to perform HT co-ex scans, ACS,
1209  * or DFS operations, this function returns 0 before such operations have been
1210  * completed. The pending operations are registered into eloop and will be
1211  * completed from eloop callbacks. Those callbacks end up calling
1212  * hostapd_setup_interface_complete() once setup has been completed.
1213  */
1214 int hostapd_setup_interface(struct hostapd_iface *iface)
1215 {
1216         int ret;
1217
1218         ret = setup_interface(iface);
1219         if (ret) {
1220                 wpa_printf(MSG_ERROR, "%s: Unable to setup interface.",
1221                            iface->bss[0]->conf->iface);
1222                 return -1;
1223         }
1224
1225         return 0;
1226 }
1227
1228
1229 /**
1230  * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
1231  * @hapd_iface: Pointer to interface data
1232  * @conf: Pointer to per-interface configuration
1233  * @bss: Pointer to per-BSS configuration for this BSS
1234  * Returns: Pointer to allocated BSS data
1235  *
1236  * This function is used to allocate per-BSS data structure. This data will be
1237  * freed after hostapd_cleanup() is called for it during interface
1238  * deinitialization.
1239  */
1240 struct hostapd_data *
1241 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
1242                        struct hostapd_config *conf,
1243                        struct hostapd_bss_config *bss)
1244 {
1245         struct hostapd_data *hapd;
1246
1247         hapd = os_zalloc(sizeof(*hapd));
1248         if (hapd == NULL)
1249                 return NULL;
1250
1251         hapd->new_assoc_sta_cb = hostapd_new_assoc_sta;
1252         hapd->iconf = conf;
1253         hapd->conf = bss;
1254         hapd->iface = hapd_iface;
1255         hapd->driver = hapd->iconf->driver;
1256         hapd->ctrl_sock = -1;
1257
1258         return hapd;
1259 }
1260
1261
1262 void hostapd_interface_deinit(struct hostapd_iface *iface)
1263 {
1264         int j;
1265
1266         if (iface == NULL)
1267                 return;
1268
1269         eloop_cancel_timeout(channel_list_update_timeout, iface, NULL);
1270         iface->wait_channel_update = 0;
1271
1272         hostapd_cleanup_iface_pre(iface);
1273         for (j = iface->num_bss - 1; j >= 0; j--) {
1274                 struct hostapd_data *hapd = iface->bss[j];
1275                 hostapd_free_stas(hapd);
1276                 hostapd_flush_old_stations(hapd, WLAN_REASON_DEAUTH_LEAVING);
1277                 hostapd_clear_wep(hapd);
1278                 hostapd_cleanup(hapd);
1279         }
1280 }
1281
1282
1283 void hostapd_interface_free(struct hostapd_iface *iface)
1284 {
1285         size_t j;
1286         for (j = 0; j < iface->num_bss; j++)
1287                 os_free(iface->bss[j]);
1288         hostapd_cleanup_iface(iface);
1289 }
1290
1291
1292 /**
1293  * hostapd_init - Allocate and initialize per-interface data
1294  * @config_file: Path to the configuration file
1295  * Returns: Pointer to the allocated interface data or %NULL on failure
1296  *
1297  * This function is used to allocate main data structures for per-interface
1298  * data. The allocated data buffer will be freed by calling
1299  * hostapd_cleanup_iface().
1300  */
1301 struct hostapd_iface * hostapd_init(struct hapd_interfaces *interfaces,
1302                                     const char *config_file)
1303 {
1304         struct hostapd_iface *hapd_iface = NULL;
1305         struct hostapd_config *conf = NULL;
1306         struct hostapd_data *hapd;
1307         size_t i;
1308
1309         hapd_iface = os_zalloc(sizeof(*hapd_iface));
1310         if (hapd_iface == NULL)
1311                 goto fail;
1312
1313         hapd_iface->config_fname = os_strdup(config_file);
1314         if (hapd_iface->config_fname == NULL)
1315                 goto fail;
1316
1317         conf = interfaces->config_read_cb(hapd_iface->config_fname);
1318         if (conf == NULL)
1319                 goto fail;
1320         hapd_iface->conf = conf;
1321
1322         hapd_iface->num_bss = conf->num_bss;
1323         hapd_iface->bss = os_calloc(conf->num_bss,
1324                                     sizeof(struct hostapd_data *));
1325         if (hapd_iface->bss == NULL)
1326                 goto fail;
1327
1328         for (i = 0; i < conf->num_bss; i++) {
1329                 hapd = hapd_iface->bss[i] =
1330                         hostapd_alloc_bss_data(hapd_iface, conf,
1331                                                conf->bss[i]);
1332                 if (hapd == NULL)
1333                         goto fail;
1334                 hapd->msg_ctx = hapd;
1335         }
1336
1337         return hapd_iface;
1338
1339 fail:
1340         wpa_printf(MSG_ERROR, "Failed to set up interface with %s",
1341                    config_file);
1342         if (conf)
1343                 hostapd_config_free(conf);
1344         if (hapd_iface) {
1345                 os_free(hapd_iface->config_fname);
1346                 os_free(hapd_iface->bss);
1347                 os_free(hapd_iface);
1348         }
1349         return NULL;
1350 }
1351
1352
1353 static int ifname_in_use(struct hapd_interfaces *interfaces, const char *ifname)
1354 {
1355         size_t i, j;
1356
1357         for (i = 0; i < interfaces->count; i++) {
1358                 struct hostapd_iface *iface = interfaces->iface[i];
1359                 for (j = 0; j < iface->num_bss; j++) {
1360                         struct hostapd_data *hapd = iface->bss[j];
1361                         if (os_strcmp(ifname, hapd->conf->iface) == 0)
1362                                 return 1;
1363                 }
1364         }
1365
1366         return 0;
1367 }
1368
1369
1370 /**
1371  * hostapd_interface_init_bss - Read configuration file and init BSS data
1372  *
1373  * This function is used to parse configuration file for a BSS. This BSS is
1374  * added to an existing interface sharing the same radio (if any) or a new
1375  * interface is created if this is the first interface on a radio. This
1376  * allocate memory for the BSS. No actual driver operations are started.
1377  *
1378  * This is similar to hostapd_interface_init(), but for a case where the
1379  * configuration is used to add a single BSS instead of all BSSes for a radio.
1380  */
1381 struct hostapd_iface *
1382 hostapd_interface_init_bss(struct hapd_interfaces *interfaces, const char *phy,
1383                            const char *config_fname, int debug)
1384 {
1385         struct hostapd_iface *new_iface = NULL, *iface = NULL;
1386         struct hostapd_data *hapd;
1387         int k;
1388         size_t i, bss_idx;
1389
1390         if (!phy || !*phy)
1391                 return NULL;
1392
1393         for (i = 0; i < interfaces->count; i++) {
1394                 if (os_strcmp(interfaces->iface[i]->phy, phy) == 0) {
1395                         iface = interfaces->iface[i];
1396                         break;
1397                 }
1398         }
1399
1400         wpa_printf(MSG_INFO, "Configuration file: %s (phy %s)%s",
1401                    config_fname, phy, iface ? "" : " --> new PHY");
1402         if (iface) {
1403                 struct hostapd_config *conf;
1404                 struct hostapd_bss_config **tmp_conf;
1405                 struct hostapd_data **tmp_bss;
1406                 struct hostapd_bss_config *bss;
1407                 const char *ifname;
1408
1409                 /* Add new BSS to existing iface */
1410                 conf = interfaces->config_read_cb(config_fname);
1411                 if (conf == NULL)
1412                         return NULL;
1413                 if (conf->num_bss > 1) {
1414                         wpa_printf(MSG_ERROR, "Multiple BSSes specified in BSS-config");
1415                         hostapd_config_free(conf);
1416                         return NULL;
1417                 }
1418
1419                 ifname = conf->bss[0]->iface;
1420                 if (ifname[0] != '\0' && ifname_in_use(interfaces, ifname)) {
1421                         wpa_printf(MSG_ERROR,
1422                                    "Interface name %s already in use", ifname);
1423                         hostapd_config_free(conf);
1424                         return NULL;
1425                 }
1426
1427                 tmp_conf = os_realloc_array(
1428                         iface->conf->bss, iface->conf->num_bss + 1,
1429                         sizeof(struct hostapd_bss_config *));
1430                 tmp_bss = os_realloc_array(iface->bss, iface->num_bss + 1,
1431                                            sizeof(struct hostapd_data *));
1432                 if (tmp_bss)
1433                         iface->bss = tmp_bss;
1434                 if (tmp_conf) {
1435                         iface->conf->bss = tmp_conf;
1436                         iface->conf->last_bss = tmp_conf[0];
1437                 }
1438                 if (tmp_bss == NULL || tmp_conf == NULL) {
1439                         hostapd_config_free(conf);
1440                         return NULL;
1441                 }
1442                 bss = iface->conf->bss[iface->conf->num_bss] = conf->bss[0];
1443                 iface->conf->num_bss++;
1444
1445                 hapd = hostapd_alloc_bss_data(iface, iface->conf, bss);
1446                 if (hapd == NULL) {
1447                         iface->conf->num_bss--;
1448                         hostapd_config_free(conf);
1449                         return NULL;
1450                 }
1451                 iface->conf->last_bss = bss;
1452                 iface->bss[iface->num_bss] = hapd;
1453                 hapd->msg_ctx = hapd;
1454
1455                 bss_idx = iface->num_bss++;
1456                 conf->num_bss--;
1457                 conf->bss[0] = NULL;
1458                 hostapd_config_free(conf);
1459         } else {
1460                 /* Add a new iface with the first BSS */
1461                 new_iface = iface = hostapd_init(interfaces, config_fname);
1462                 if (!iface)
1463                         return NULL;
1464                 os_strlcpy(iface->phy, phy, sizeof(iface->phy));
1465                 iface->interfaces = interfaces;
1466                 bss_idx = 0;
1467         }
1468
1469         for (k = 0; k < debug; k++) {
1470                 if (iface->bss[bss_idx]->conf->logger_stdout_level > 0)
1471                         iface->bss[bss_idx]->conf->logger_stdout_level--;
1472         }
1473
1474         if (iface->conf->bss[bss_idx]->iface[0] == '\0' &&
1475             !hostapd_drv_none(iface->bss[bss_idx])) {
1476                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
1477                            config_fname);
1478                 if (new_iface)
1479                         hostapd_interface_deinit_free(new_iface);
1480                 return NULL;
1481         }
1482
1483         return iface;
1484 }
1485
1486
1487 void hostapd_interface_deinit_free(struct hostapd_iface *iface)
1488 {
1489         const struct wpa_driver_ops *driver;
1490         void *drv_priv;
1491         if (iface == NULL)
1492                 return;
1493         driver = iface->bss[0]->driver;
1494         drv_priv = iface->bss[0]->drv_priv;
1495         hostapd_interface_deinit(iface);
1496         if (driver && driver->hapd_deinit && drv_priv)
1497                 driver->hapd_deinit(drv_priv);
1498         hostapd_interface_free(iface);
1499 }
1500
1501
1502 int hostapd_enable_iface(struct hostapd_iface *hapd_iface)
1503 {
1504         if (hapd_iface->bss[0]->drv_priv != NULL) {
1505                 wpa_printf(MSG_ERROR, "Interface %s already enabled",
1506                            hapd_iface->conf->bss[0]->iface);
1507                 return -1;
1508         }
1509
1510         wpa_printf(MSG_DEBUG, "Enable interface %s",
1511                    hapd_iface->conf->bss[0]->iface);
1512
1513         if (hapd_iface->interfaces == NULL ||
1514             hapd_iface->interfaces->driver_init == NULL ||
1515             hapd_iface->interfaces->driver_init(hapd_iface))
1516                 return -1;
1517
1518         if (hostapd_setup_interface(hapd_iface)) {
1519                 const struct wpa_driver_ops *driver;
1520                 void *drv_priv;
1521
1522                 driver = hapd_iface->bss[0]->driver;
1523                 drv_priv = hapd_iface->bss[0]->drv_priv;
1524                 if (driver && driver->hapd_deinit && drv_priv) {
1525                         driver->hapd_deinit(drv_priv);
1526                         hapd_iface->bss[0]->drv_priv = NULL;
1527                 }
1528                 return -1;
1529         }
1530
1531         return 0;
1532 }
1533
1534
1535 int hostapd_reload_iface(struct hostapd_iface *hapd_iface)
1536 {
1537         size_t j;
1538
1539         wpa_printf(MSG_DEBUG, "Reload interface %s",
1540                    hapd_iface->conf->bss[0]->iface);
1541         for (j = 0; j < hapd_iface->num_bss; j++)
1542                 hostapd_set_security_params(hapd_iface->conf->bss[j]);
1543         if (hostapd_config_check(hapd_iface->conf) < 0) {
1544                 wpa_printf(MSG_ERROR, "Updated configuration is invalid");
1545                 return -1;
1546         }
1547         hostapd_clear_old(hapd_iface);
1548         for (j = 0; j < hapd_iface->num_bss; j++)
1549                 hostapd_reload_bss(hapd_iface->bss[j]);
1550
1551         return 0;
1552 }
1553
1554
1555 int hostapd_disable_iface(struct hostapd_iface *hapd_iface)
1556 {
1557         size_t j;
1558         const struct wpa_driver_ops *driver;
1559         void *drv_priv;
1560
1561         if (hapd_iface == NULL)
1562                 return -1;
1563         wpa_msg(hapd_iface->bss[0]->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
1564         driver = hapd_iface->bss[0]->driver;
1565         drv_priv = hapd_iface->bss[0]->drv_priv;
1566
1567         /* whatever hostapd_interface_deinit does */
1568         for (j = 0; j < hapd_iface->num_bss; j++) {
1569                 struct hostapd_data *hapd = hapd_iface->bss[j];
1570                 hostapd_free_stas(hapd);
1571                 hostapd_flush_old_stations(hapd, WLAN_REASON_DEAUTH_LEAVING);
1572                 hostapd_clear_wep(hapd);
1573                 hostapd_free_hapd_data(hapd);
1574         }
1575
1576         if (driver && driver->hapd_deinit && drv_priv) {
1577                 driver->hapd_deinit(drv_priv);
1578                 hapd_iface->bss[0]->drv_priv = NULL;
1579         }
1580
1581         /* From hostapd_cleanup_iface: These were initialized in
1582          * hostapd_setup_interface and hostapd_setup_interface_complete
1583          */
1584         hostapd_cleanup_iface_partial(hapd_iface);
1585
1586         wpa_printf(MSG_DEBUG, "Interface %s disabled",
1587                    hapd_iface->bss[0]->conf->iface);
1588         hostapd_set_state(hapd_iface, HAPD_IFACE_DISABLED);
1589         return 0;
1590 }
1591
1592
1593 static struct hostapd_iface *
1594 hostapd_iface_alloc(struct hapd_interfaces *interfaces)
1595 {
1596         struct hostapd_iface **iface, *hapd_iface;
1597
1598         iface = os_realloc_array(interfaces->iface, interfaces->count + 1,
1599                                  sizeof(struct hostapd_iface *));
1600         if (iface == NULL)
1601                 return NULL;
1602         interfaces->iface = iface;
1603         hapd_iface = interfaces->iface[interfaces->count] =
1604                 os_zalloc(sizeof(*hapd_iface));
1605         if (hapd_iface == NULL) {
1606                 wpa_printf(MSG_ERROR, "%s: Failed to allocate memory for "
1607                            "the interface", __func__);
1608                 return NULL;
1609         }
1610         interfaces->count++;
1611         hapd_iface->interfaces = interfaces;
1612
1613         return hapd_iface;
1614 }
1615
1616
1617 static struct hostapd_config *
1618 hostapd_config_alloc(struct hapd_interfaces *interfaces, const char *ifname,
1619                      const char *ctrl_iface)
1620 {
1621         struct hostapd_bss_config *bss;
1622         struct hostapd_config *conf;
1623
1624         /* Allocates memory for bss and conf */
1625         conf = hostapd_config_defaults();
1626         if (conf == NULL) {
1627                  wpa_printf(MSG_ERROR, "%s: Failed to allocate memory for "
1628                                 "configuration", __func__);
1629                 return NULL;
1630         }
1631
1632         conf->driver = wpa_drivers[0];
1633         if (conf->driver == NULL) {
1634                 wpa_printf(MSG_ERROR, "No driver wrappers registered!");
1635                 hostapd_config_free(conf);
1636                 return NULL;
1637         }
1638
1639         bss = conf->last_bss = conf->bss[0];
1640
1641         os_strlcpy(bss->iface, ifname, sizeof(bss->iface));
1642         bss->ctrl_interface = os_strdup(ctrl_iface);
1643         if (bss->ctrl_interface == NULL) {
1644                 hostapd_config_free(conf);
1645                 return NULL;
1646         }
1647
1648         /* Reading configuration file skipped, will be done in SET!
1649          * From reading the configuration till the end has to be done in
1650          * SET
1651          */
1652         return conf;
1653 }
1654
1655
1656 static struct hostapd_iface * hostapd_data_alloc(
1657         struct hapd_interfaces *interfaces, struct hostapd_config *conf)
1658 {
1659         size_t i;
1660         struct hostapd_iface *hapd_iface =
1661                 interfaces->iface[interfaces->count - 1];
1662         struct hostapd_data *hapd;
1663
1664         hapd_iface->conf = conf;
1665         hapd_iface->num_bss = conf->num_bss;
1666
1667         hapd_iface->bss = os_zalloc(conf->num_bss *
1668                                     sizeof(struct hostapd_data *));
1669         if (hapd_iface->bss == NULL)
1670                 return NULL;
1671
1672         for (i = 0; i < conf->num_bss; i++) {
1673                 hapd = hapd_iface->bss[i] =
1674                         hostapd_alloc_bss_data(hapd_iface, conf, conf->bss[i]);
1675                 if (hapd == NULL)
1676                         return NULL;
1677                 hapd->msg_ctx = hapd;
1678         }
1679
1680         hapd_iface->interfaces = interfaces;
1681
1682         return hapd_iface;
1683 }
1684
1685
1686 int hostapd_add_iface(struct hapd_interfaces *interfaces, char *buf)
1687 {
1688         struct hostapd_config *conf = NULL;
1689         struct hostapd_iface *hapd_iface = NULL, *new_iface = NULL;
1690         struct hostapd_data *hapd;
1691         char *ptr;
1692         size_t i, j;
1693         const char *conf_file = NULL, *phy_name = NULL;
1694
1695         if (os_strncmp(buf, "bss_config=", 11) == 0) {
1696                 char *pos;
1697                 phy_name = buf + 11;
1698                 pos = os_strchr(phy_name, ':');
1699                 if (!pos)
1700                         return -1;
1701                 *pos++ = '\0';
1702                 conf_file = pos;
1703                 if (!os_strlen(conf_file))
1704                         return -1;
1705
1706                 hapd_iface = hostapd_interface_init_bss(interfaces, phy_name,
1707                                                         conf_file, 0);
1708                 if (!hapd_iface)
1709                         return -1;
1710                 for (j = 0; j < interfaces->count; j++) {
1711                         if (interfaces->iface[j] == hapd_iface)
1712                                 break;
1713                 }
1714                 if (j == interfaces->count) {
1715                         struct hostapd_iface **tmp;
1716                         tmp = os_realloc_array(interfaces->iface,
1717                                                interfaces->count + 1,
1718                                                sizeof(struct hostapd_iface *));
1719                         if (!tmp) {
1720                                 hostapd_interface_deinit_free(hapd_iface);
1721                                 return -1;
1722                         }
1723                         interfaces->iface = tmp;
1724                         interfaces->iface[interfaces->count++] = hapd_iface;
1725                         new_iface = hapd_iface;
1726                 }
1727
1728                 if (new_iface) {
1729                         if (interfaces->driver_init(hapd_iface) ||
1730                             hostapd_setup_interface(hapd_iface)) {
1731                                 interfaces->count--;
1732                                 goto fail;
1733                         }
1734                 } else {
1735                         /* Assign new BSS with bss[0]'s driver info */
1736                         hapd = hapd_iface->bss[hapd_iface->num_bss - 1];
1737                         hapd->driver = hapd_iface->bss[0]->driver;
1738                         hapd->drv_priv = hapd_iface->bss[0]->drv_priv;
1739                         os_memcpy(hapd->own_addr, hapd_iface->bss[0]->own_addr,
1740                                   ETH_ALEN);
1741
1742                         if (start_ctrl_iface_bss(hapd) < 0 ||
1743                             hostapd_setup_bss(hapd, -1)) {
1744                                 hapd_iface->conf->num_bss--;
1745                                 hapd_iface->num_bss--;
1746                                 os_free(hapd);
1747                                 return -1;
1748                         }
1749                 }
1750                 return 0;
1751         }
1752
1753         ptr = os_strchr(buf, ' ');
1754         if (ptr == NULL)
1755                 return -1;
1756         *ptr++ = '\0';
1757
1758         if (os_strncmp(ptr, "config=", 7) == 0)
1759                 conf_file = ptr + 7;
1760
1761         for (i = 0; i < interfaces->count; i++) {
1762                 if (!os_strcmp(interfaces->iface[i]->conf->bss[0]->iface,
1763                                buf)) {
1764                         wpa_printf(MSG_INFO, "Cannot add interface - it "
1765                                    "already exists");
1766                         return -1;
1767                 }
1768         }
1769
1770         hapd_iface = hostapd_iface_alloc(interfaces);
1771         if (hapd_iface == NULL) {
1772                 wpa_printf(MSG_ERROR, "%s: Failed to allocate memory "
1773                            "for interface", __func__);
1774                 goto fail;
1775         }
1776
1777         if (conf_file && interfaces->config_read_cb) {
1778                 conf = interfaces->config_read_cb(conf_file);
1779                 if (conf && conf->bss)
1780                         os_strlcpy(conf->bss[0]->iface, buf,
1781                                    sizeof(conf->bss[0]->iface));
1782         } else
1783                 conf = hostapd_config_alloc(interfaces, buf, ptr);
1784         if (conf == NULL || conf->bss == NULL) {
1785                 wpa_printf(MSG_ERROR, "%s: Failed to allocate memory "
1786                            "for configuration", __func__);
1787                 goto fail;
1788         }
1789
1790         hapd_iface = hostapd_data_alloc(interfaces, conf);
1791         if (hapd_iface == NULL) {
1792                 wpa_printf(MSG_ERROR, "%s: Failed to allocate memory "
1793                            "for hostapd", __func__);
1794                 goto fail;
1795         }
1796
1797         if (start_ctrl_iface(hapd_iface) < 0)
1798                 goto fail;
1799
1800         wpa_printf(MSG_INFO, "Add interface '%s'", conf->bss[0]->iface);
1801
1802         return 0;
1803
1804 fail:
1805         if (conf)
1806                 hostapd_config_free(conf);
1807         if (hapd_iface) {
1808                 if (hapd_iface->bss) {
1809                         for (i = 0; i < hapd_iface->num_bss; i++)
1810                                 os_free(hapd_iface->bss[i]);
1811                         os_free(hapd_iface->bss);
1812                 }
1813                 os_free(hapd_iface);
1814         }
1815         return -1;
1816 }
1817
1818
1819 static int hostapd_remove_bss(struct hostapd_iface *iface, unsigned int idx)
1820 {
1821         struct hostapd_data *hapd;
1822         size_t i;
1823
1824         if (idx > iface->num_bss || idx > iface->conf->num_bss)
1825                 return -1;
1826         hapd = iface->bss[idx];
1827         wpa_printf(MSG_INFO, "Remove BSS '%s'", hapd->conf->iface);
1828
1829         hostapd_free_stas(hapd);
1830         hostapd_flush_old_stations(hapd, WLAN_REASON_DEAUTH_LEAVING);
1831         hostapd_clear_wep(hapd);
1832         hostapd_cleanup(hapd);
1833         hostapd_config_free_bss(hapd->conf);
1834         os_free(hapd);
1835
1836         iface->num_bss--;
1837         for (i = idx; i < iface->num_bss; i++)
1838                 iface->bss[i] = iface->bss[i + 1];
1839
1840         iface->conf->num_bss--;
1841         for (i = idx; i < iface->num_bss; i++)
1842                 iface->conf->bss[i] = iface->conf->bss[i + 1];
1843
1844         return 0;
1845 }
1846
1847
1848 int hostapd_remove_iface(struct hapd_interfaces *interfaces, char *buf)
1849 {
1850         struct hostapd_iface *hapd_iface;
1851         size_t i, j, k = 0;
1852
1853         for (i = 0; i < interfaces->count; i++) {
1854                 hapd_iface = interfaces->iface[i];
1855                 if (hapd_iface == NULL)
1856                         return -1;
1857                 if (!os_strcmp(hapd_iface->conf->bss[0]->iface, buf)) {
1858                         wpa_printf(MSG_INFO, "Remove interface '%s'", buf);
1859                         hostapd_interface_deinit_free(hapd_iface);
1860                         k = i;
1861                         while (k < (interfaces->count - 1)) {
1862                                 interfaces->iface[k] =
1863                                         interfaces->iface[k + 1];
1864                                 k++;
1865                         }
1866                         interfaces->count--;
1867                         return 0;
1868                 }
1869
1870                 for (j = 0; j < hapd_iface->conf->num_bss; j++) {
1871                         if (!os_strcmp(hapd_iface->conf->bss[j]->iface, buf))
1872                                 return hostapd_remove_bss(hapd_iface, j);
1873                 }
1874         }
1875         return -1;
1876 }
1877
1878
1879 /**
1880  * hostapd_new_assoc_sta - Notify that a new station associated with the AP
1881  * @hapd: Pointer to BSS data
1882  * @sta: Pointer to the associated STA data
1883  * @reassoc: 1 to indicate this was a re-association; 0 = first association
1884  *
1885  * This function will be called whenever a station associates with the AP. It
1886  * can be called from ieee802_11.c for drivers that export MLME to hostapd and
1887  * from drv_callbacks.c based on driver events for drivers that take care of
1888  * management frames (IEEE 802.11 authentication and association) internally.
1889  */
1890 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
1891                            int reassoc)
1892 {
1893         if (hapd->tkip_countermeasures) {
1894                 hostapd_drv_sta_deauth(hapd, sta->addr,
1895                                        WLAN_REASON_MICHAEL_MIC_FAILURE);
1896                 return;
1897         }
1898
1899         hostapd_prune_associations(hapd, sta->addr);
1900
1901         /* IEEE 802.11F (IAPP) */
1902         if (hapd->conf->ieee802_11f)
1903                 iapp_new_station(hapd->iapp, sta);
1904
1905 #ifdef CONFIG_P2P
1906         if (sta->p2p_ie == NULL && !sta->no_p2p_set) {
1907                 sta->no_p2p_set = 1;
1908                 hapd->num_sta_no_p2p++;
1909                 if (hapd->num_sta_no_p2p == 1)
1910                         hostapd_p2p_non_p2p_sta_connected(hapd);
1911         }
1912 #endif /* CONFIG_P2P */
1913
1914         /* Start accounting here, if IEEE 802.1X and WPA are not used.
1915          * IEEE 802.1X/WPA code will start accounting after the station has
1916          * been authorized. */
1917         if (!hapd->conf->ieee802_1x && !hapd->conf->wpa) {
1918                 os_get_time(&sta->connected_time);
1919                 accounting_sta_start(hapd, sta);
1920         }
1921
1922         /* Start IEEE 802.1X authentication process for new stations */
1923         ieee802_1x_new_station(hapd, sta);
1924         if (reassoc) {
1925                 if (sta->auth_alg != WLAN_AUTH_FT &&
1926                     !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)))
1927                         wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH);
1928         } else
1929                 wpa_auth_sta_associated(hapd->wpa_auth, sta->wpa_sm);
1930
1931         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
1932                    "for " MACSTR " (%d seconds - ap_max_inactivity)",
1933                    __func__, MAC2STR(sta->addr),
1934                    hapd->conf->ap_max_inactivity);
1935         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1936         eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
1937                                ap_handle_timer, hapd, sta);
1938 }
1939
1940
1941 const char * hostapd_state_text(enum hostapd_iface_state s)
1942 {
1943         switch (s) {
1944         case HAPD_IFACE_UNINITIALIZED:
1945                 return "UNINITIALIZED";
1946         case HAPD_IFACE_DISABLED:
1947                 return "DISABLED";
1948         case HAPD_IFACE_COUNTRY_UPDATE:
1949                 return "COUNTRY_UPDATE";
1950         case HAPD_IFACE_ACS:
1951                 return "ACS";
1952         case HAPD_IFACE_HT_SCAN:
1953                 return "HT_SCAN";
1954         case HAPD_IFACE_DFS:
1955                 return "DFS";
1956         case HAPD_IFACE_ENABLED:
1957                 return "ENABLED";
1958         }
1959
1960         return "UNKNOWN";
1961 }
1962
1963
1964 void hostapd_set_state(struct hostapd_iface *iface, enum hostapd_iface_state s)
1965 {
1966         wpa_printf(MSG_INFO, "%s: interface state %s->%s",
1967                    iface->conf->bss[0]->iface, hostapd_state_text(iface->state),
1968                    hostapd_state_text(s));
1969         iface->state = s;
1970 }