wpa_supplicant/ap.c

   1 /*
   2  * WPA Supplicant - Basic AP mode support routines
   3  * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2009, Atheros Communications
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include "utils/includes.h"
  11
  12 #include "utils/common.h"
  13 #include "utils/eloop.h"
  14 #include "utils/uuid.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/wpa_ctrl.h"
  17 #include "eapol_supp/eapol_supp_sm.h"
  18 #include "ap/hostapd.h"
  19 #include "ap/ap_config.h"
  20 #include "ap/ap_drv_ops.h"
  21 #ifdef NEED_AP_MLME
  22 #include "ap/ieee802_11.h"
  23 #endif /* NEED_AP_MLME */
  24 #include "ap/beacon.h"
  25 #include "ap/ieee802_1x.h"
  26 #include "ap/wps_hostapd.h"
  27 #include "ap/ctrl_iface_ap.h"
  28 #include "wps/wps.h"
  29 #include "common/ieee802_11_defs.h"
  30 #include "config_ssid.h"
  31 #include "config.h"
  32 #include "wpa_supplicant_i.h"
  33 #include "driver_i.h"
  34 #include "p2p_supplicant.h"
  35 #include "ap.h"
  36 #include "ap/sta_info.h"
  37 #include "notify.h"
  38
  39
  40 #ifdef CONFIG_WPS
  41 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  42 #endif /* CONFIG_WPS */
  43
  44
  45 #ifdef CONFIG_IEEE80211N
  46 static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
  47                              struct hostapd_config *conf,
  48                              struct hostapd_hw_modes *mode)
  49 {
  50         u8 center_chan = 0;
  51         u8 channel = conf->channel;
  52
  53         if (!conf->secondary_channel)
  54                 goto no_vht;
  55
  56         center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
  57         if (!center_chan)
  58                 goto no_vht;
  59
  60         /* Use 80 MHz channel */
  61         conf->vht_oper_chwidth = 1;
  62         conf->vht_oper_centr_freq_seg0_idx = center_chan;
  63         return;
  64
  65 no_vht:
  66         conf->vht_oper_centr_freq_seg0_idx =
  67                 channel + conf->secondary_channel * 2;
  68 }
  69 #endif /* CONFIG_IEEE80211N */
  70
  71
  72 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
  73                                   struct wpa_ssid *ssid,
  74                                   struct hostapd_config *conf)
  75 {
  76         struct hostapd_bss_config *bss = conf->bss[0];
  77
  78         conf->driver = wpa_s->driver;
  79
  80         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  81
  82         conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
  83                                                &conf->channel);
  84         if (conf->hw_mode == NUM_HOSTAPD_MODES) {
  85                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  86                            ssid->frequency);
  87                 return -1;
  88         }
  89
  90         /* TODO: enable HT40 if driver supports it;
  91          * drop to 11b if driver does not support 11g */
  92
  93 #ifdef CONFIG_IEEE80211N
  94         /*
  95          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  96          * and a mask of allowed capabilities within conf->ht_capab.
  97          * Using default config settings for: conf->ht_op_mode_fixed,
  98          * conf->secondary_channel, conf->require_ht
  99          */
 100         if (wpa_s->hw.modes) {
 101                 struct hostapd_hw_modes *mode = NULL;
 102                 int i, no_ht = 0;
 103                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
 104                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
 105                                 mode = &wpa_s->hw.modes[i];
 106                                 break;
 107                         }
 108                 }
 109
 110 #ifdef CONFIG_HT_OVERRIDES
 111                 if (ssid->disable_ht) {
 112                         conf->ieee80211n = 0;
 113                         conf->ht_capab = 0;
 114                         no_ht = 1;
 115                 }
 116 #endif /* CONFIG_HT_OVERRIDES */
 117
 118                 if (!no_ht && mode && mode->ht_capab) {
 119                         conf->ieee80211n = 1;
 120 #ifdef CONFIG_P2P
 121                         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
 122                             (mode->ht_capab &
 123                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
 124                             ssid->ht40)
 125                                 conf->secondary_channel =
 126                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
 127                                                                conf->channel);
 128                         if (conf->secondary_channel)
 129                                 conf->ht_capab |=
 130                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 131 #endif /* CONFIG_P2P */
 132
 133                         /*
 134                          * white-list capabilities that won't cause issues
 135                          * to connecting stations, while leaving the current
 136                          * capabilities intact (currently disabled SMPS).
 137                          */
 138                         conf->ht_capab |= mode->ht_capab &
 139                                 (HT_CAP_INFO_GREEN_FIELD |
 140                                  HT_CAP_INFO_SHORT_GI20MHZ |
 141                                  HT_CAP_INFO_SHORT_GI40MHZ |
 142                                  HT_CAP_INFO_RX_STBC_MASK |
 143                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 144
 145                         if (mode->vht_capab && ssid->vht) {
 146                                 conf->ieee80211ac = 1;
 147                                 wpas_conf_ap_vht(wpa_s, conf, mode);
 148                         }
 149                 }
 150         }
 151 #endif /* CONFIG_IEEE80211N */
 152
 153 #ifdef CONFIG_P2P
 154         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
 155             (ssid->mode == WPAS_MODE_P2P_GO ||
 156              ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
 157                 /* Remove 802.11b rates from supported and basic rate sets */
 158                 int *list = os_malloc(4 * sizeof(int));
 159                 if (list) {
 160                         list[0] = 60;
 161                         list[1] = 120;
 162                         list[2] = 240;
 163                         list[3] = -1;
 164                 }
 165                 conf->basic_rates = list;
 166
 167                 list = os_malloc(9 * sizeof(int));
 168                 if (list) {
 169                         list[0] = 60;
 170                         list[1] = 90;
 171                         list[2] = 120;
 172                         list[3] = 180;
 173                         list[4] = 240;
 174                         list[5] = 360;
 175                         list[6] = 480;
 176                         list[7] = 540;
 177                         list[8] = -1;
 178                 }
 179                 conf->supported_rates = list;
 180         }
 181
 182         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 183         bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
 184 #endif /* CONFIG_P2P */
 185
 186         if (ssid->ssid_len == 0) {
 187                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 188                 return -1;
 189         }
 190         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 191         bss->ssid.ssid_len = ssid->ssid_len;
 192         bss->ssid.ssid_set = 1;
 193
 194         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 195
 196         if (ssid->auth_alg)
 197                 bss->auth_algs = ssid->auth_alg;
 198
 199         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 200                 bss->wpa = ssid->proto;
 201         bss->wpa_key_mgmt = ssid->key_mgmt;
 202         bss->wpa_pairwise = ssid->pairwise_cipher;
 203         if (ssid->psk_set) {
 204                 os_free(bss->ssid.wpa_psk);
 205                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 206                 if (bss->ssid.wpa_psk == NULL)
 207                         return -1;
 208                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 209                 bss->ssid.wpa_psk->group = 1;
 210         } else if (ssid->passphrase) {
 211                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 212         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 213                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 214                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 215                 int i;
 216                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 217                         if (ssid->wep_key_len[i] == 0)
 218                                 continue;
 219                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 220                         if (wep->key[i] == NULL)
 221                                 return -1;
 222                         os_memcpy(wep->key[i], ssid->wep_key[i],
 223                                   ssid->wep_key_len[i]);
 224                         wep->len[i] = ssid->wep_key_len[i];
 225                 }
 226                 wep->idx = ssid->wep_tx_keyidx;
 227                 wep->keys_set = 1;
 228         }
 229
 230         if (ssid->ap_max_inactivity)
 231                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 232
 233         if (ssid->dtim_period)
 234                 bss->dtim_period = ssid->dtim_period;
 235         else if (wpa_s->conf->dtim_period)
 236                 bss->dtim_period = wpa_s->conf->dtim_period;
 237
 238         if (ssid->beacon_int)
 239                 conf->beacon_int = ssid->beacon_int;
 240         else if (wpa_s->conf->beacon_int)
 241                 conf->beacon_int = wpa_s->conf->beacon_int;
 242
 243         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
 244                 bss->rsn_pairwise = bss->wpa_pairwise;
 245         bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
 246                                                     bss->rsn_pairwise);
 247
 248         if (bss->wpa && bss->ieee802_1x)
 249                 bss->ssid.security_policy = SECURITY_WPA;
 250         else if (bss->wpa)
 251                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 252         else if (bss->ieee802_1x) {
 253                 int cipher = WPA_CIPHER_NONE;
 254                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 255                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 256                 if (bss->default_wep_key_len)
 257                         cipher = bss->default_wep_key_len >= 13 ?
 258                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 259                 bss->wpa_group = cipher;
 260                 bss->wpa_pairwise = cipher;
 261                 bss->rsn_pairwise = cipher;
 262         } else if (bss->ssid.wep.keys_set) {
 263                 int cipher = WPA_CIPHER_WEP40;
 264                 if (bss->ssid.wep.len[0] >= 13)
 265                         cipher = WPA_CIPHER_WEP104;
 266                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 267                 bss->wpa_group = cipher;
 268                 bss->wpa_pairwise = cipher;
 269                 bss->rsn_pairwise = cipher;
 270         } else {
 271                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 272                 bss->wpa_group = WPA_CIPHER_NONE;
 273                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 274                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 275         }
 276
 277         if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
 278             (bss->wpa_group == WPA_CIPHER_CCMP ||
 279              bss->wpa_group == WPA_CIPHER_GCMP ||
 280              bss->wpa_group == WPA_CIPHER_CCMP_256 ||
 281              bss->wpa_group == WPA_CIPHER_GCMP_256)) {
 282                 /*
 283                  * Strong ciphers do not need frequent rekeying, so increase
 284                  * the default GTK rekeying period to 24 hours.
 285                  */
 286                 bss->wpa_group_rekey = 86400;
 287         }
 288
 289 #ifdef CONFIG_WPS
 290         /*
 291          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 292          * require user interaction to actually use it. Only the internal
 293          * Registrar is supported.
 294          */
 295         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 296             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 297                 goto no_wps;
 298 #ifdef CONFIG_WPS2
 299         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 300             (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 301                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 302                               * configuration */
 303 #endif /* CONFIG_WPS2 */
 304         bss->eap_server = 1;
 305
 306         if (!ssid->ignore_broadcast_ssid)
 307                 bss->wps_state = 2;
 308
 309         bss->ap_setup_locked = 2;
 310         if (wpa_s->conf->config_methods)
 311                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 312         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 313                   WPS_DEV_TYPE_LEN);
 314         if (wpa_s->conf->device_name) {
 315                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 316                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 317         }
 318         if (wpa_s->conf->manufacturer)
 319                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 320         if (wpa_s->conf->model_name)
 321                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 322         if (wpa_s->conf->model_number)
 323                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 324         if (wpa_s->conf->serial_number)
 325                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 326         if (is_nil_uuid(wpa_s->conf->uuid))
 327                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 328         else
 329                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 330         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 331         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 332 no_wps:
 333 #endif /* CONFIG_WPS */
 334
 335         if (wpa_s->max_stations &&
 336             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 337                 bss->max_num_sta = wpa_s->max_stations;
 338         else
 339                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 340
 341         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 342
 343         if (wpa_s->conf->ap_vendor_elements) {
 344                 bss->vendor_elements =
 345                         wpabuf_dup(wpa_s->conf->ap_vendor_elements);
 346         }
 347
 348         return 0;
 349 }
 350
 351
 352 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 353 {
 354 #ifdef CONFIG_P2P
 355         struct wpa_supplicant *wpa_s = ctx;
 356         const struct ieee80211_mgmt *mgmt;
 357         size_t hdr_len;
 358
 359         mgmt = (const struct ieee80211_mgmt *) buf;
 360         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 361         if (hdr_len > len)
 362                 return;
 363         if (mgmt->u.action.category != WLAN_ACTION_PUBLIC)
 364                 return;
 365         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 366                            mgmt->u.action.category,
 367                            &mgmt->u.action.u.vs_public_action.action,
 368                            len - hdr_len, freq);
 369 #endif /* CONFIG_P2P */
 370 }
 371
 372
 373 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 374                             union wps_event_data *data)
 375 {
 376 #ifdef CONFIG_P2P
 377         struct wpa_supplicant *wpa_s = ctx;
 378
 379         if (event == WPS_EV_FAIL) {
 380                 struct wps_event_fail *fail = &data->fail;
 381
 382                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 383                     wpa_s == wpa_s->global->p2p_group_formation) {
 384                         /*
 385                          * src/ap/wps_hostapd.c has already sent this on the
 386                          * main interface, so only send on the parent interface
 387                          * here if needed.
 388                          */
 389                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 390                                 "msg=%d config_error=%d",
 391                                 fail->msg, fail->config_error);
 392                 }
 393                 wpas_p2p_wps_failed(wpa_s, fail);
 394         }
 395 #endif /* CONFIG_P2P */
 396 }
 397
 398
 399 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 400                                  int authorized, const u8 *p2p_dev_addr)
 401 {
 402         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 403 }
 404
 405
 406 #ifdef CONFIG_P2P
 407 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
 408                           const u8 *psk, size_t psk_len)
 409 {
 410
 411         struct wpa_supplicant *wpa_s = ctx;
 412         if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
 413                 return;
 414         wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
 415 }
 416 #endif /* CONFIG_P2P */
 417
 418
 419 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 420 {
 421 #ifdef CONFIG_P2P
 422         struct wpa_supplicant *wpa_s = ctx;
 423         const struct ieee80211_mgmt *mgmt;
 424         size_t hdr_len;
 425
 426         mgmt = (const struct ieee80211_mgmt *) buf;
 427         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 428         if (hdr_len > len)
 429                 return -1;
 430         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 431                            mgmt->u.action.category,
 432                            &mgmt->u.action.u.vs_public_action.action,
 433                            len - hdr_len, freq);
 434 #endif /* CONFIG_P2P */
 435         return 0;
 436 }
 437
 438
 439 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 440                            const u8 *bssid, const u8 *ie, size_t ie_len,
 441                            int ssi_signal)
 442 {
 443 #ifdef CONFIG_P2P
 444         struct wpa_supplicant *wpa_s = ctx;
 445         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 446                                      ssi_signal);
 447 #else /* CONFIG_P2P */
 448         return 0;
 449 #endif /* CONFIG_P2P */
 450 }
 451
 452
 453 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 454                                   const u8 *uuid_e)
 455 {
 456 #ifdef CONFIG_P2P
 457         struct wpa_supplicant *wpa_s = ctx;
 458         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 459 #endif /* CONFIG_P2P */
 460 }
 461
 462
 463 static void wpas_ap_configured_cb(void *ctx)
 464 {
 465         struct wpa_supplicant *wpa_s = ctx;
 466
 467         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 468
 469         if (wpa_s->ap_configured_cb)
 470                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 471                                         wpa_s->ap_configured_cb_data);
 472 }
 473
 474
 475 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 476                              struct wpa_ssid *ssid)
 477 {
 478         struct wpa_driver_associate_params params;
 479         struct hostapd_iface *hapd_iface;
 480         struct hostapd_config *conf;
 481         size_t i;
 482
 483         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 484                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 485                 return -1;
 486         }
 487
 488         wpa_supplicant_ap_deinit(wpa_s);
 489
 490         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 491                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 492
 493         os_memset(&params, 0, sizeof(params));
 494         params.ssid = ssid->ssid;
 495         params.ssid_len = ssid->ssid_len;
 496         switch (ssid->mode) {
 497         case WPAS_MODE_INFRA:
 498                 params.mode = IEEE80211_MODE_INFRA;
 499                 break;
 500         case WPAS_MODE_IBSS:
 501                 params.mode = IEEE80211_MODE_IBSS;
 502                 break;
 503         case WPAS_MODE_AP:
 504         case WPAS_MODE_P2P_GO:
 505         case WPAS_MODE_P2P_GROUP_FORMATION:
 506                 params.mode = IEEE80211_MODE_AP;
 507                 break;
 508         }
 509         if (ssid->frequency == 0)
 510                 ssid->frequency = 2462; /* default channel 11 */
 511         params.freq = ssid->frequency;
 512
 513         params.wpa_proto = ssid->proto;
 514         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 515                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 516         else
 517                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 518         params.key_mgmt_suite = wpa_s->key_mgmt;
 519
 520         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
 521                                                           1);
 522         if (wpa_s->pairwise_cipher < 0) {
 523                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 524                            "cipher.");
 525                 return -1;
 526         }
 527         params.pairwise_suite = wpa_s->pairwise_cipher;
 528         params.group_suite = params.pairwise_suite;
 529
 530 #ifdef CONFIG_P2P
 531         if (ssid->mode == WPAS_MODE_P2P_GO ||
 532             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 533                 params.p2p = 1;
 534 #endif /* CONFIG_P2P */
 535
 536         if (wpa_s->parent->set_ap_uapsd)
 537                 params.uapsd = wpa_s->parent->ap_uapsd;
 538         else
 539                 params.uapsd = -1;
 540
 541         if (wpa_drv_associate(wpa_s, &params) < 0) {
 542                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 543                 return -1;
 544         }
 545
 546         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 547         if (hapd_iface == NULL)
 548                 return -1;
 549         hapd_iface->owner = wpa_s;
 550         hapd_iface->drv_flags = wpa_s->drv_flags;
 551         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 552         hapd_iface->extended_capa = wpa_s->extended_capa;
 553         hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
 554         hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
 555
 556         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 557         if (conf == NULL) {
 558                 wpa_supplicant_ap_deinit(wpa_s);
 559                 return -1;
 560         }
 561
 562         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 563                   wpa_s->conf->wmm_ac_params,
 564                   sizeof(wpa_s->conf->wmm_ac_params));
 565
 566         if (params.uapsd > 0) {
 567                 conf->bss[0]->wmm_enabled = 1;
 568                 conf->bss[0]->wmm_uapsd = 1;
 569         }
 570
 571         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 572                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 573                 wpa_supplicant_ap_deinit(wpa_s);
 574                 return -1;
 575         }
 576
 577 #ifdef CONFIG_P2P
 578         if (ssid->mode == WPAS_MODE_P2P_GO)
 579                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 580         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 581                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 582                         P2P_GROUP_FORMATION;
 583 #endif /* CONFIG_P2P */
 584
 585         hapd_iface->num_bss = conf->num_bss;
 586         hapd_iface->bss = os_calloc(conf->num_bss,
 587                                     sizeof(struct hostapd_data *));
 588         if (hapd_iface->bss == NULL) {
 589                 wpa_supplicant_ap_deinit(wpa_s);
 590                 return -1;
 591         }
 592
 593         for (i = 0; i < conf->num_bss; i++) {
 594                 hapd_iface->bss[i] =
 595                         hostapd_alloc_bss_data(hapd_iface, conf,
 596                                                conf->bss[i]);
 597                 if (hapd_iface->bss[i] == NULL) {
 598                         wpa_supplicant_ap_deinit(wpa_s);
 599                         return -1;
 600                 }
 601
 602                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 603                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 604                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 605                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 606                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 607                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 608                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 609                                              ap_probe_req_rx, wpa_s);
 610                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 611                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 612                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 613                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 614                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 615                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 616 #ifdef CONFIG_P2P
 617                 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
 618                 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
 619                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 620                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 621                                                                     ssid);
 622 #endif /* CONFIG_P2P */
 623                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 624                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 625         }
 626
 627         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 628         hapd_iface->bss[0]->driver = wpa_s->driver;
 629         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 630
 631         wpa_s->current_ssid = ssid;
 632         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 633         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 634         wpa_s->assoc_freq = ssid->frequency;
 635
 636         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 637                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 638                 wpa_supplicant_ap_deinit(wpa_s);
 639                 return -1;
 640         }
 641
 642         return 0;
 643 }
 644
 645
 646 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 647 {
 648 #ifdef CONFIG_WPS
 649         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 650 #endif /* CONFIG_WPS */
 651
 652         if (wpa_s->ap_iface == NULL)
 653                 return;
 654
 655         wpa_s->current_ssid = NULL;
 656         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 657         wpa_s->assoc_freq = 0;
 658 #ifdef CONFIG_P2P
 659         if (wpa_s->ap_iface->bss)
 660                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 661         wpas_p2p_group_deinit(wpa_s);
 662 #endif /* CONFIG_P2P */
 663         hostapd_interface_deinit(wpa_s->ap_iface);
 664         hostapd_interface_free(wpa_s->ap_iface);
 665         wpa_s->ap_iface = NULL;
 666         wpa_drv_deinit_ap(wpa_s);
 667 }
 668
 669
 670 void ap_tx_status(void *ctx, const u8 *addr,
 671                   const u8 *buf, size_t len, int ack)
 672 {
 673 #ifdef NEED_AP_MLME
 674         struct wpa_supplicant *wpa_s = ctx;
 675         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 676 #endif /* NEED_AP_MLME */
 677 }
 678
 679
 680 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 681                         const u8 *data, size_t len, int ack)
 682 {
 683 #ifdef NEED_AP_MLME
 684         struct wpa_supplicant *wpa_s = ctx;
 685         if (!wpa_s->ap_iface)
 686                 return;
 687         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 688 #endif /* NEED_AP_MLME */
 689 }
 690
 691
 692 void ap_client_poll_ok(void *ctx, const u8 *addr)
 693 {
 694 #ifdef NEED_AP_MLME
 695         struct wpa_supplicant *wpa_s = ctx;
 696         if (wpa_s->ap_iface)
 697                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 698 #endif /* NEED_AP_MLME */
 699 }
 700
 701
 702 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 703 {
 704 #ifdef NEED_AP_MLME
 705         struct wpa_supplicant *wpa_s = ctx;
 706         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 707 #endif /* NEED_AP_MLME */
 708 }
 709
 710
 711 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 712 {
 713 #ifdef NEED_AP_MLME
 714         struct wpa_supplicant *wpa_s = ctx;
 715         struct hostapd_frame_info fi;
 716         os_memset(&fi, 0, sizeof(fi));
 717         fi.datarate = rx_mgmt->datarate;
 718         fi.ssi_signal = rx_mgmt->ssi_signal;
 719         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 720                         rx_mgmt->frame_len, &fi);
 721 #endif /* NEED_AP_MLME */
 722 }
 723
 724
 725 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 726 {
 727 #ifdef NEED_AP_MLME
 728         struct wpa_supplicant *wpa_s = ctx;
 729         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 730 #endif /* NEED_AP_MLME */
 731 }
 732
 733
 734 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 735                                 const u8 *src_addr, const u8 *buf, size_t len)
 736 {
 737         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 738 }
 739
 740
 741 #ifdef CONFIG_WPS
 742
 743 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 744                               const u8 *p2p_dev_addr)
 745 {
 746         if (!wpa_s->ap_iface)
 747                 return -1;
 748         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 749                                          p2p_dev_addr);
 750 }
 751
 752
 753 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 754 {
 755         struct wps_registrar *reg;
 756         int reg_sel = 0, wps_sta = 0;
 757
 758         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 759                 return -1;
 760
 761         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 762         reg_sel = wps_registrar_wps_cancel(reg);
 763         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 764                                   ap_sta_wps_cancel, NULL);
 765
 766         if (!reg_sel && !wps_sta) {
 767                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 768                            "time");
 769                 return -1;
 770         }
 771
 772         /*
 773          * There are 2 cases to return wps cancel as success:
 774          * 1. When wps cancel was initiated but no connection has been
 775          *    established with client yet.
 776          * 2. Client is in the middle of exchanging WPS messages.
 777          */
 778
 779         return 0;
 780 }
 781
 782
 783 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 784                               const char *pin, char *buf, size_t buflen,
 785                               int timeout)
 786 {
 787         int ret, ret_len = 0;
 788
 789         if (!wpa_s->ap_iface)
 790                 return -1;
 791
 792         if (pin == NULL) {
 793                 unsigned int rpin = wps_generate_pin();
 794                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 795                 pin = buf;
 796         } else
 797                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 798
 799         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 800                                   timeout);
 801         if (ret)
 802                 return -1;
 803         return ret_len;
 804 }
 805
 806
 807 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 808 {
 809         struct wpa_supplicant *wpa_s = eloop_data;
 810         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 811         wpas_wps_ap_pin_disable(wpa_s);
 812 }
 813
 814
 815 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 816 {
 817         struct hostapd_data *hapd;
 818
 819         if (wpa_s->ap_iface == NULL)
 820                 return;
 821         hapd = wpa_s->ap_iface->bss[0];
 822         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 823         hapd->ap_pin_failures = 0;
 824         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 825         if (timeout > 0)
 826                 eloop_register_timeout(timeout, 0,
 827                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 828 }
 829
 830
 831 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 832 {
 833         struct hostapd_data *hapd;
 834
 835         if (wpa_s->ap_iface == NULL)
 836                 return;
 837         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 838         hapd = wpa_s->ap_iface->bss[0];
 839         os_free(hapd->conf->ap_pin);
 840         hapd->conf->ap_pin = NULL;
 841         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 842 }
 843
 844
 845 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 846 {
 847         struct hostapd_data *hapd;
 848         unsigned int pin;
 849         char pin_txt[9];
 850
 851         if (wpa_s->ap_iface == NULL)
 852                 return NULL;
 853         hapd = wpa_s->ap_iface->bss[0];
 854         pin = wps_generate_pin();
 855         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 856         os_free(hapd->conf->ap_pin);
 857         hapd->conf->ap_pin = os_strdup(pin_txt);
 858         if (hapd->conf->ap_pin == NULL)
 859                 return NULL;
 860         wpas_wps_ap_pin_enable(wpa_s, timeout);
 861
 862         return hapd->conf->ap_pin;
 863 }
 864
 865
 866 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 867 {
 868         struct hostapd_data *hapd;
 869         if (wpa_s->ap_iface == NULL)
 870                 return NULL;
 871         hapd = wpa_s->ap_iface->bss[0];
 872         return hapd->conf->ap_pin;
 873 }
 874
 875
 876 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 877                         int timeout)
 878 {
 879         struct hostapd_data *hapd;
 880         char pin_txt[9];
 881         int ret;
 882
 883         if (wpa_s->ap_iface == NULL)
 884                 return -1;
 885         hapd = wpa_s->ap_iface->bss[0];
 886         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 887         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 888                 return -1;
 889         os_free(hapd->conf->ap_pin);
 890         hapd->conf->ap_pin = os_strdup(pin_txt);
 891         if (hapd->conf->ap_pin == NULL)
 892                 return -1;
 893         wpas_wps_ap_pin_enable(wpa_s, timeout);
 894
 895         return 0;
 896 }
 897
 898
 899 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 900 {
 901         struct hostapd_data *hapd;
 902
 903         if (wpa_s->ap_iface == NULL)
 904                 return;
 905         hapd = wpa_s->ap_iface->bss[0];
 906
 907         /*
 908          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 909          * PIN if this happens multiple times to slow down brute force attacks.
 910          */
 911         hapd->ap_pin_failures++;
 912         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 913                    hapd->ap_pin_failures);
 914         if (hapd->ap_pin_failures < 3)
 915                 return;
 916
 917         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 918         hapd->ap_pin_failures = 0;
 919         os_free(hapd->conf->ap_pin);
 920         hapd->conf->ap_pin = NULL;
 921 }
 922
 923
 924 #ifdef CONFIG_WPS_NFC
 925
 926 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
 927                                              int ndef)
 928 {
 929         struct hostapd_data *hapd;
 930
 931         if (wpa_s->ap_iface == NULL)
 932                 return NULL;
 933         hapd = wpa_s->ap_iface->bss[0];
 934         return hostapd_wps_nfc_config_token(hapd, ndef);
 935 }
 936
 937
 938 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 939                                              int ndef)
 940 {
 941         struct hostapd_data *hapd;
 942
 943         if (wpa_s->ap_iface == NULL)
 944                 return NULL;
 945         hapd = wpa_s->ap_iface->bss[0];
 946         return hostapd_wps_nfc_hs_cr(hapd, ndef);
 947 }
 948
 949
 950 int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
 951                                     const struct wpabuf *req,
 952                                     const struct wpabuf *sel)
 953 {
 954         struct hostapd_data *hapd;
 955
 956         if (wpa_s->ap_iface == NULL)
 957                 return -1;
 958         hapd = wpa_s->ap_iface->bss[0];
 959         return hostapd_wps_nfc_report_handover(hapd, req, sel);
 960 }
 961
 962 #endif /* CONFIG_WPS_NFC */
 963
 964 #endif /* CONFIG_WPS */
 965
 966
 967 #ifdef CONFIG_CTRL_IFACE
 968
 969 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 970                             char *buf, size_t buflen)
 971 {
 972         if (wpa_s->ap_iface == NULL)
 973                 return -1;
 974         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 975                                             buf, buflen);
 976 }
 977
 978
 979 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 980                       char *buf, size_t buflen)
 981 {
 982         if (wpa_s->ap_iface == NULL)
 983                 return -1;
 984         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 985                                       buf, buflen);
 986 }
 987
 988
 989 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 990                            char *buf, size_t buflen)
 991 {
 992         if (wpa_s->ap_iface == NULL)
 993                 return -1;
 994         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 995                                            buf, buflen);
 996 }
 997
 998
 999 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
1000                                    const char *txtaddr)
1001 {
1002         if (wpa_s->ap_iface == NULL)
1003                 return -1;
1004         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
1005                                                txtaddr);
1006 }
1007
1008
1009 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
1010                                      const char *txtaddr)
1011 {
1012         if (wpa_s->ap_iface == NULL)
1013                 return -1;
1014         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
1015                                                  txtaddr);
1016 }
1017
1018
1019 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
1020                                  size_t buflen, int verbose)
1021 {
1022         char *pos = buf, *end = buf + buflen;
1023         int ret;
1024         struct hostapd_bss_config *conf;
1025
1026         if (wpa_s->ap_iface == NULL)
1027                 return -1;
1028
1029         conf = wpa_s->ap_iface->bss[0]->conf;
1030         if (conf->wpa == 0)
1031                 return 0;
1032
1033         ret = os_snprintf(pos, end - pos,
1034                           "pairwise_cipher=%s\n"
1035                           "group_cipher=%s\n"
1036                           "key_mgmt=%s\n",
1037                           wpa_cipher_txt(conf->rsn_pairwise),
1038                           wpa_cipher_txt(conf->wpa_group),
1039                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
1040                                            conf->wpa));
1041         if (ret < 0 || ret >= end - pos)
1042                 return pos - buf;
1043         pos += ret;
1044         return pos - buf;
1045 }
1046
1047 #endif /* CONFIG_CTRL_IFACE */
1048
1049
1050 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1051 {
1052         struct hostapd_iface *iface = wpa_s->ap_iface;
1053         struct wpa_ssid *ssid = wpa_s->current_ssid;
1054         struct hostapd_data *hapd;
1055
1056         if (ssid == NULL || wpa_s->ap_iface == NULL ||
1057             ssid->mode == WPAS_MODE_INFRA ||
1058             ssid->mode == WPAS_MODE_IBSS)
1059                 return -1;
1060
1061 #ifdef CONFIG_P2P
1062         if (ssid->mode == WPAS_MODE_P2P_GO)
1063                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1064         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1065                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1066                         P2P_GROUP_FORMATION;
1067 #endif /* CONFIG_P2P */
1068
1069         hapd = iface->bss[0];
1070         if (hapd->drv_priv == NULL)
1071                 return -1;
1072         ieee802_11_set_beacons(iface);
1073         hostapd_set_ap_wps_ie(hapd);
1074
1075         return 0;
1076 }
1077
1078
1079 int ap_switch_channel(struct wpa_supplicant *wpa_s,
1080                       struct csa_settings *settings)
1081 {
1082 #ifdef NEED_AP_MLME
1083         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1084                 return -1;
1085
1086         return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings);
1087 #else /* NEED_AP_MLME */
1088         return -1;
1089 #endif /* NEED_AP_MLME */
1090 }
1091
1092
1093 int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos)
1094 {
1095         struct csa_settings settings;
1096         int ret = hostapd_parse_csa_settings(pos, &settings);
1097
1098         if (ret)
1099                 return ret;
1100
1101         return ap_switch_channel(wpa_s, &settings);
1102 }
1103
1104
1105 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1106                        int offset, int width, int cf1, int cf2)
1107 {
1108         if (!wpa_s->ap_iface)
1109                 return;
1110
1111         wpa_s->assoc_freq = freq;
1112         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset, width, cf1, cf1);
1113 }
1114
1115
1116 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1117                                       const u8 *addr)
1118 {
1119         struct hostapd_data *hapd;
1120         struct hostapd_bss_config *conf;
1121
1122         if (!wpa_s->ap_iface)
1123                 return -1;
1124
1125         if (addr)
1126                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1127                            MAC2STR(addr));
1128         else
1129                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1130
1131         hapd = wpa_s->ap_iface->bss[0];
1132         conf = hapd->conf;
1133
1134         os_free(conf->accept_mac);
1135         conf->accept_mac = NULL;
1136         conf->num_accept_mac = 0;
1137         os_free(conf->deny_mac);
1138         conf->deny_mac = NULL;
1139         conf->num_deny_mac = 0;
1140
1141         if (addr == NULL) {
1142                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1143                 return 0;
1144         }
1145
1146         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1147         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1148         if (conf->accept_mac == NULL)
1149                 return -1;
1150         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1151         conf->num_accept_mac = 1;
1152
1153         return 0;
1154 }