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 "ap/hostapd.h"
  18 #include "ap/ap_config.h"
  19 #include "ap/ap_drv_ops.h"
  20 #ifdef NEED_AP_MLME
  21 #include "ap/ieee802_11.h"
  22 #endif /* NEED_AP_MLME */
  23 #include "ap/beacon.h"
  24 #include "ap/ieee802_1x.h"
  25 #include "ap/wps_hostapd.h"
  26 #include "ap/ctrl_iface_ap.h"
  27 #include "wps/wps.h"
  28 #include "common/ieee802_11_defs.h"
  29 #include "config_ssid.h"
  30 #include "config.h"
  31 #include "wpa_supplicant_i.h"
  32 #include "driver_i.h"
  33 #include "p2p_supplicant.h"
  34 #include "ap.h"
  35 #include "ap/sta_info.h"
  36 #include "notify.h"
  37
  38
  39 #ifdef CONFIG_WPS
  40 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  41 #endif /* CONFIG_WPS */
  42
  43
  44 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
  45                                   struct wpa_ssid *ssid,
  46                                   struct hostapd_config *conf)
  47 {
  48         struct hostapd_bss_config *bss = &conf->bss[0];
  49
  50         conf->driver = wpa_s->driver;
  51
  52         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  53
  54         if (ssid->frequency == 0) {
  55                 /* default channel 11 */
  56                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  57                 conf->channel = 11;
  58         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
  59                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  60                 conf->channel = (ssid->frequency - 2407) / 5;
  61         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
  62                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
  63                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
  64                 conf->channel = (ssid->frequency - 5000) / 5;
  65         } else if (ssid->frequency >= 56160 + 2160 * 1 &&
  66                    ssid->frequency <= 56160 + 2160 * 4) {
  67                 conf->hw_mode = HOSTAPD_MODE_IEEE80211AD;
  68                 conf->channel = (ssid->frequency - 56160) / 2160;
  69         } else {
  70                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  71                            ssid->frequency);
  72                 return -1;
  73         }
  74
  75         /* TODO: enable HT40 if driver supports it;
  76          * drop to 11b if driver does not support 11g */
  77
  78 #ifdef CONFIG_IEEE80211N
  79         /*
  80          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  81          * and a mask of allowed capabilities within conf->ht_capab.
  82          * Using default config settings for: conf->ht_op_mode_fixed,
  83          * conf->secondary_channel, conf->require_ht
  84          */
  85         if (wpa_s->hw.modes) {
  86                 struct hostapd_hw_modes *mode = NULL;
  87                 int i, no_ht = 0;
  88                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
  89                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
  90                                 mode = &wpa_s->hw.modes[i];
  91                                 break;
  92                         }
  93                 }
  94
  95 #ifdef CONFIG_HT_OVERRIDES
  96                 if (ssid->disable_ht) {
  97                         conf->ieee80211n = 0;
  98                         conf->ht_capab = 0;
  99                         no_ht = 1;
 100                 }
 101 #endif /* CONFIG_HT_OVERRIDES */
 102
 103                 if (!no_ht && mode && mode->ht_capab) {
 104                         conf->ieee80211n = 1;
 105 #ifdef CONFIG_P2P
 106                         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
 107                             (mode->ht_capab &
 108                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
 109                             ssid->ht40)
 110                                 conf->secondary_channel =
 111                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
 112                                                                conf->channel);
 113                         if (conf->secondary_channel)
 114                                 conf->ht_capab |=
 115                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 116 #endif /* CONFIG_P2P */
 117
 118                         /*
 119                          * white-list capabilities that won't cause issues
 120                          * to connecting stations, while leaving the current
 121                          * capabilities intact (currently disabled SMPS).
 122                          */
 123                         conf->ht_capab |= mode->ht_capab &
 124                                 (HT_CAP_INFO_GREEN_FIELD |
 125                                  HT_CAP_INFO_SHORT_GI20MHZ |
 126                                  HT_CAP_INFO_SHORT_GI40MHZ |
 127                                  HT_CAP_INFO_RX_STBC_MASK |
 128                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 129                 }
 130         }
 131 #endif /* CONFIG_IEEE80211N */
 132
 133 #ifdef CONFIG_P2P
 134         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 135                 /* Remove 802.11b rates from supported and basic rate sets */
 136                 int *list = os_malloc(4 * sizeof(int));
 137                 if (list) {
 138                         list[0] = 60;
 139                         list[1] = 120;
 140                         list[2] = 240;
 141                         list[3] = -1;
 142                 }
 143                 conf->basic_rates = list;
 144
 145                 list = os_malloc(9 * sizeof(int));
 146                 if (list) {
 147                         list[0] = 60;
 148                         list[1] = 90;
 149                         list[2] = 120;
 150                         list[3] = 180;
 151                         list[4] = 240;
 152                         list[5] = 360;
 153                         list[6] = 480;
 154                         list[7] = 540;
 155                         list[8] = -1;
 156                 }
 157                 conf->supported_rates = list;
 158         }
 159
 160         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 161 #endif /* CONFIG_P2P */
 162
 163         if (ssid->ssid_len == 0) {
 164                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 165                 return -1;
 166         }
 167         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 168         bss->ssid.ssid_len = ssid->ssid_len;
 169         bss->ssid.ssid_set = 1;
 170
 171         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 172
 173         if (ssid->auth_alg)
 174                 bss->auth_algs = ssid->auth_alg;
 175
 176         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 177                 bss->wpa = ssid->proto;
 178         bss->wpa_key_mgmt = ssid->key_mgmt;
 179         bss->wpa_pairwise = ssid->pairwise_cipher;
 180         if (ssid->psk_set) {
 181                 os_free(bss->ssid.wpa_psk);
 182                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 183                 if (bss->ssid.wpa_psk == NULL)
 184                         return -1;
 185                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 186                 bss->ssid.wpa_psk->group = 1;
 187         } else if (ssid->passphrase) {
 188                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 189         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 190                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 191                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 192                 int i;
 193                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 194                         if (ssid->wep_key_len[i] == 0)
 195                                 continue;
 196                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 197                         if (wep->key[i] == NULL)
 198                                 return -1;
 199                         os_memcpy(wep->key[i], ssid->wep_key[i],
 200                                   ssid->wep_key_len[i]);
 201                         wep->len[i] = ssid->wep_key_len[i];
 202                 }
 203                 wep->idx = ssid->wep_tx_keyidx;
 204                 wep->keys_set = 1;
 205         }
 206
 207         if (ssid->ap_max_inactivity)
 208                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 209
 210         if (ssid->dtim_period)
 211                 bss->dtim_period = ssid->dtim_period;
 212         else if (wpa_s->conf->dtim_period)
 213                 bss->dtim_period = wpa_s->conf->dtim_period;
 214
 215         if (ssid->beacon_int)
 216                 conf->beacon_int = ssid->beacon_int;
 217         else if (wpa_s->conf->beacon_int)
 218                 conf->beacon_int = wpa_s->conf->beacon_int;
 219
 220         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
 221                 bss->rsn_pairwise = bss->wpa_pairwise;
 222         bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
 223                                                     bss->rsn_pairwise);
 224
 225         if (bss->wpa && bss->ieee802_1x)
 226                 bss->ssid.security_policy = SECURITY_WPA;
 227         else if (bss->wpa)
 228                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 229         else if (bss->ieee802_1x) {
 230                 int cipher = WPA_CIPHER_NONE;
 231                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 232                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 233                 if (bss->default_wep_key_len)
 234                         cipher = bss->default_wep_key_len >= 13 ?
 235                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 236                 bss->wpa_group = cipher;
 237                 bss->wpa_pairwise = cipher;
 238                 bss->rsn_pairwise = cipher;
 239         } else if (bss->ssid.wep.keys_set) {
 240                 int cipher = WPA_CIPHER_WEP40;
 241                 if (bss->ssid.wep.len[0] >= 13)
 242                         cipher = WPA_CIPHER_WEP104;
 243                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 244                 bss->wpa_group = cipher;
 245                 bss->wpa_pairwise = cipher;
 246                 bss->rsn_pairwise = cipher;
 247         } else {
 248                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 249                 bss->wpa_group = WPA_CIPHER_NONE;
 250                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 251                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 252         }
 253
 254 #ifdef CONFIG_WPS
 255         /*
 256          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 257          * require user interaction to actually use it. Only the internal
 258          * Registrar is supported.
 259          */
 260         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 261             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 262                 goto no_wps;
 263 #ifdef CONFIG_WPS2
 264         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 265             (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 266                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 267                               * configuration */
 268 #endif /* CONFIG_WPS2 */
 269         bss->eap_server = 1;
 270
 271         if (!ssid->ignore_broadcast_ssid)
 272                 bss->wps_state = 2;
 273
 274         bss->ap_setup_locked = 2;
 275         if (wpa_s->conf->config_methods)
 276                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 277         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 278                   WPS_DEV_TYPE_LEN);
 279         if (wpa_s->conf->device_name) {
 280                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 281                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 282         }
 283         if (wpa_s->conf->manufacturer)
 284                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 285         if (wpa_s->conf->model_name)
 286                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 287         if (wpa_s->conf->model_number)
 288                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 289         if (wpa_s->conf->serial_number)
 290                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 291         if (is_nil_uuid(wpa_s->conf->uuid))
 292                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 293         else
 294                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 295         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 296         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 297 no_wps:
 298 #endif /* CONFIG_WPS */
 299
 300         if (wpa_s->max_stations &&
 301             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 302                 bss->max_num_sta = wpa_s->max_stations;
 303         else
 304                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 305
 306         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 307
 308         return 0;
 309 }
 310
 311
 312 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 313 {
 314 #ifdef CONFIG_P2P
 315         struct wpa_supplicant *wpa_s = ctx;
 316         const struct ieee80211_mgmt *mgmt;
 317         size_t hdr_len;
 318
 319         mgmt = (const struct ieee80211_mgmt *) buf;
 320         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 321         if (hdr_len > len)
 322                 return;
 323         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 324                            mgmt->u.action.category,
 325                            &mgmt->u.action.u.vs_public_action.action,
 326                            len - hdr_len, freq);
 327 #endif /* CONFIG_P2P */
 328 }
 329
 330
 331 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 332                             union wps_event_data *data)
 333 {
 334 #ifdef CONFIG_P2P
 335         struct wpa_supplicant *wpa_s = ctx;
 336
 337         if (event == WPS_EV_FAIL) {
 338                 struct wps_event_fail *fail = &data->fail;
 339
 340                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 341                     wpa_s == wpa_s->global->p2p_group_formation) {
 342                         /*
 343                          * src/ap/wps_hostapd.c has already sent this on the
 344                          * main interface, so only send on the parent interface
 345                          * here if needed.
 346                          */
 347                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 348                                 "msg=%d config_error=%d",
 349                                 fail->msg, fail->config_error);
 350                 }
 351                 wpas_p2p_wps_failed(wpa_s, fail);
 352         }
 353 #endif /* CONFIG_P2P */
 354 }
 355
 356
 357 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 358                                  int authorized, const u8 *p2p_dev_addr)
 359 {
 360         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 361 }
 362
 363
 364 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 365 {
 366 #ifdef CONFIG_P2P
 367         struct wpa_supplicant *wpa_s = ctx;
 368         const struct ieee80211_mgmt *mgmt;
 369         size_t hdr_len;
 370
 371         mgmt = (const struct ieee80211_mgmt *) buf;
 372         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 373         if (hdr_len > len)
 374                 return -1;
 375         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 376                            mgmt->u.action.category,
 377                            &mgmt->u.action.u.vs_public_action.action,
 378                            len - hdr_len, freq);
 379 #endif /* CONFIG_P2P */
 380         return 0;
 381 }
 382
 383
 384 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 385                            const u8 *bssid, const u8 *ie, size_t ie_len,
 386                            int ssi_signal)
 387 {
 388 #ifdef CONFIG_P2P
 389         struct wpa_supplicant *wpa_s = ctx;
 390         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 391                                      ssi_signal);
 392 #else /* CONFIG_P2P */
 393         return 0;
 394 #endif /* CONFIG_P2P */
 395 }
 396
 397
 398 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 399                                   const u8 *uuid_e)
 400 {
 401 #ifdef CONFIG_P2P
 402         struct wpa_supplicant *wpa_s = ctx;
 403         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 404 #endif /* CONFIG_P2P */
 405 }
 406
 407
 408 static void wpas_ap_configured_cb(void *ctx)
 409 {
 410         struct wpa_supplicant *wpa_s = ctx;
 411
 412         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 413
 414         if (wpa_s->ap_configured_cb)
 415                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 416                                         wpa_s->ap_configured_cb_data);
 417 }
 418
 419
 420 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 421                              struct wpa_ssid *ssid)
 422 {
 423         struct wpa_driver_associate_params params;
 424         struct hostapd_iface *hapd_iface;
 425         struct hostapd_config *conf;
 426         size_t i;
 427
 428         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 429                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 430                 return -1;
 431         }
 432
 433         wpa_supplicant_ap_deinit(wpa_s);
 434
 435         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 436                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 437
 438         os_memset(&params, 0, sizeof(params));
 439         params.ssid = ssid->ssid;
 440         params.ssid_len = ssid->ssid_len;
 441         switch (ssid->mode) {
 442         case WPAS_MODE_INFRA:
 443                 params.mode = IEEE80211_MODE_INFRA;
 444                 break;
 445         case WPAS_MODE_IBSS:
 446                 params.mode = IEEE80211_MODE_IBSS;
 447                 break;
 448         case WPAS_MODE_AP:
 449         case WPAS_MODE_P2P_GO:
 450         case WPAS_MODE_P2P_GROUP_FORMATION:
 451                 params.mode = IEEE80211_MODE_AP;
 452                 break;
 453         }
 454         params.freq = ssid->frequency;
 455
 456         params.wpa_proto = ssid->proto;
 457         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 458                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 459         else
 460                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 461         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 462
 463         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
 464                                                           1);
 465         if (wpa_s->pairwise_cipher < 0) {
 466                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 467                            "cipher.");
 468                 return -1;
 469         }
 470         params.pairwise_suite =
 471                 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher);
 472         params.group_suite = params.pairwise_suite;
 473
 474 #ifdef CONFIG_P2P
 475         if (ssid->mode == WPAS_MODE_P2P_GO ||
 476             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 477                 params.p2p = 1;
 478 #endif /* CONFIG_P2P */
 479
 480         if (wpa_s->parent->set_ap_uapsd)
 481                 params.uapsd = wpa_s->parent->ap_uapsd;
 482         else
 483                 params.uapsd = -1;
 484
 485         if (wpa_drv_associate(wpa_s, &params) < 0) {
 486                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 487                 return -1;
 488         }
 489
 490         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 491         if (hapd_iface == NULL)
 492                 return -1;
 493         hapd_iface->owner = wpa_s;
 494         hapd_iface->drv_flags = wpa_s->drv_flags;
 495         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 496
 497         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 498         if (conf == NULL) {
 499                 wpa_supplicant_ap_deinit(wpa_s);
 500                 return -1;
 501         }
 502
 503         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 504                   wpa_s->conf->wmm_ac_params,
 505                   sizeof(wpa_s->conf->wmm_ac_params));
 506
 507         if (params.uapsd > 0) {
 508                 conf->bss->wmm_enabled = 1;
 509                 conf->bss->wmm_uapsd = 1;
 510         }
 511
 512         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 513                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 514                 wpa_supplicant_ap_deinit(wpa_s);
 515                 return -1;
 516         }
 517
 518 #ifdef CONFIG_P2P
 519         if (ssid->mode == WPAS_MODE_P2P_GO)
 520                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 521         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 522                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 523                         P2P_GROUP_FORMATION;
 524 #endif /* CONFIG_P2P */
 525
 526         hapd_iface->num_bss = conf->num_bss;
 527         hapd_iface->bss = os_calloc(conf->num_bss,
 528                                     sizeof(struct hostapd_data *));
 529         if (hapd_iface->bss == NULL) {
 530                 wpa_supplicant_ap_deinit(wpa_s);
 531                 return -1;
 532         }
 533
 534         for (i = 0; i < conf->num_bss; i++) {
 535                 hapd_iface->bss[i] =
 536                         hostapd_alloc_bss_data(hapd_iface, conf,
 537                                                &conf->bss[i]);
 538                 if (hapd_iface->bss[i] == NULL) {
 539                         wpa_supplicant_ap_deinit(wpa_s);
 540                         return -1;
 541                 }
 542
 543                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 544                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 545                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 546                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 547                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 548                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 549                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 550                                              ap_probe_req_rx, wpa_s);
 551                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 552                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 553                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 554                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 555                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 556                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 557 #ifdef CONFIG_P2P
 558                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 559                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 560                                                                     ssid);
 561 #endif /* CONFIG_P2P */
 562                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 563                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 564         }
 565
 566         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 567         hapd_iface->bss[0]->driver = wpa_s->driver;
 568         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 569
 570         wpa_s->current_ssid = ssid;
 571         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 572         wpa_s->assoc_freq = ssid->frequency;
 573
 574         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 575                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 576                 wpa_supplicant_ap_deinit(wpa_s);
 577                 return -1;
 578         }
 579
 580         return 0;
 581 }
 582
 583
 584 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 585 {
 586 #ifdef CONFIG_WPS
 587         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 588 #endif /* CONFIG_WPS */
 589
 590         if (wpa_s->ap_iface == NULL)
 591                 return;
 592
 593         wpa_s->current_ssid = NULL;
 594         wpa_s->assoc_freq = 0;
 595 #ifdef CONFIG_P2P
 596         if (wpa_s->ap_iface->bss)
 597                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 598         wpas_p2p_group_deinit(wpa_s);
 599 #endif /* CONFIG_P2P */
 600         hostapd_interface_deinit(wpa_s->ap_iface);
 601         hostapd_interface_free(wpa_s->ap_iface);
 602         wpa_s->ap_iface = NULL;
 603         wpa_drv_deinit_ap(wpa_s);
 604 }
 605
 606
 607 void ap_tx_status(void *ctx, const u8 *addr,
 608                   const u8 *buf, size_t len, int ack)
 609 {
 610 #ifdef NEED_AP_MLME
 611         struct wpa_supplicant *wpa_s = ctx;
 612         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 613 #endif /* NEED_AP_MLME */
 614 }
 615
 616
 617 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 618                         const u8 *data, size_t len, int ack)
 619 {
 620 #ifdef NEED_AP_MLME
 621         struct wpa_supplicant *wpa_s = ctx;
 622         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 623 #endif /* NEED_AP_MLME */
 624 }
 625
 626
 627 void ap_client_poll_ok(void *ctx, const u8 *addr)
 628 {
 629 #ifdef NEED_AP_MLME
 630         struct wpa_supplicant *wpa_s = ctx;
 631         if (wpa_s->ap_iface)
 632                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 633 #endif /* NEED_AP_MLME */
 634 }
 635
 636
 637 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 638 {
 639 #ifdef NEED_AP_MLME
 640         struct wpa_supplicant *wpa_s = ctx;
 641         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 642 #endif /* NEED_AP_MLME */
 643 }
 644
 645
 646 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 647 {
 648 #ifdef NEED_AP_MLME
 649         struct wpa_supplicant *wpa_s = ctx;
 650         struct hostapd_frame_info fi;
 651         os_memset(&fi, 0, sizeof(fi));
 652         fi.datarate = rx_mgmt->datarate;
 653         fi.ssi_signal = rx_mgmt->ssi_signal;
 654         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 655                         rx_mgmt->frame_len, &fi);
 656 #endif /* NEED_AP_MLME */
 657 }
 658
 659
 660 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 661 {
 662 #ifdef NEED_AP_MLME
 663         struct wpa_supplicant *wpa_s = ctx;
 664         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 665 #endif /* NEED_AP_MLME */
 666 }
 667
 668
 669 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 670                                 const u8 *src_addr, const u8 *buf, size_t len)
 671 {
 672         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 673 }
 674
 675
 676 #ifdef CONFIG_WPS
 677
 678 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 679                               const u8 *p2p_dev_addr)
 680 {
 681         if (!wpa_s->ap_iface)
 682                 return -1;
 683         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 684                                          p2p_dev_addr);
 685 }
 686
 687
 688 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 689 {
 690         struct wps_registrar *reg;
 691         int reg_sel = 0, wps_sta = 0;
 692
 693         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 694                 return -1;
 695
 696         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 697         reg_sel = wps_registrar_wps_cancel(reg);
 698         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 699                                   ap_sta_wps_cancel, NULL);
 700
 701         if (!reg_sel && !wps_sta) {
 702                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 703                            "time");
 704                 return -1;
 705         }
 706
 707         /*
 708          * There are 2 cases to return wps cancel as success:
 709          * 1. When wps cancel was initiated but no connection has been
 710          *    established with client yet.
 711          * 2. Client is in the middle of exchanging WPS messages.
 712          */
 713
 714         return 0;
 715 }
 716
 717
 718 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 719                               const char *pin, char *buf, size_t buflen,
 720                               int timeout)
 721 {
 722         int ret, ret_len = 0;
 723
 724         if (!wpa_s->ap_iface)
 725                 return -1;
 726
 727         if (pin == NULL) {
 728                 unsigned int rpin = wps_generate_pin();
 729                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 730                 pin = buf;
 731         } else
 732                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 733
 734         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 735                                   timeout);
 736         if (ret)
 737                 return -1;
 738         return ret_len;
 739 }
 740
 741
 742 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 743 {
 744         struct wpa_supplicant *wpa_s = eloop_data;
 745         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 746         wpas_wps_ap_pin_disable(wpa_s);
 747 }
 748
 749
 750 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 751 {
 752         struct hostapd_data *hapd;
 753
 754         if (wpa_s->ap_iface == NULL)
 755                 return;
 756         hapd = wpa_s->ap_iface->bss[0];
 757         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 758         hapd->ap_pin_failures = 0;
 759         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 760         if (timeout > 0)
 761                 eloop_register_timeout(timeout, 0,
 762                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 763 }
 764
 765
 766 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 767 {
 768         struct hostapd_data *hapd;
 769
 770         if (wpa_s->ap_iface == NULL)
 771                 return;
 772         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 773         hapd = wpa_s->ap_iface->bss[0];
 774         os_free(hapd->conf->ap_pin);
 775         hapd->conf->ap_pin = NULL;
 776         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 777 }
 778
 779
 780 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 781 {
 782         struct hostapd_data *hapd;
 783         unsigned int pin;
 784         char pin_txt[9];
 785
 786         if (wpa_s->ap_iface == NULL)
 787                 return NULL;
 788         hapd = wpa_s->ap_iface->bss[0];
 789         pin = wps_generate_pin();
 790         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 791         os_free(hapd->conf->ap_pin);
 792         hapd->conf->ap_pin = os_strdup(pin_txt);
 793         if (hapd->conf->ap_pin == NULL)
 794                 return NULL;
 795         wpas_wps_ap_pin_enable(wpa_s, timeout);
 796
 797         return hapd->conf->ap_pin;
 798 }
 799
 800
 801 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 802 {
 803         struct hostapd_data *hapd;
 804         if (wpa_s->ap_iface == NULL)
 805                 return NULL;
 806         hapd = wpa_s->ap_iface->bss[0];
 807         return hapd->conf->ap_pin;
 808 }
 809
 810
 811 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 812                         int timeout)
 813 {
 814         struct hostapd_data *hapd;
 815         char pin_txt[9];
 816         int ret;
 817
 818         if (wpa_s->ap_iface == NULL)
 819                 return -1;
 820         hapd = wpa_s->ap_iface->bss[0];
 821         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 822         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 823                 return -1;
 824         os_free(hapd->conf->ap_pin);
 825         hapd->conf->ap_pin = os_strdup(pin_txt);
 826         if (hapd->conf->ap_pin == NULL)
 827                 return -1;
 828         wpas_wps_ap_pin_enable(wpa_s, timeout);
 829
 830         return 0;
 831 }
 832
 833
 834 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 835 {
 836         struct hostapd_data *hapd;
 837
 838         if (wpa_s->ap_iface == NULL)
 839                 return;
 840         hapd = wpa_s->ap_iface->bss[0];
 841
 842         /*
 843          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 844          * PIN if this happens multiple times to slow down brute force attacks.
 845          */
 846         hapd->ap_pin_failures++;
 847         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 848                    hapd->ap_pin_failures);
 849         if (hapd->ap_pin_failures < 3)
 850                 return;
 851
 852         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 853         hapd->ap_pin_failures = 0;
 854         os_free(hapd->conf->ap_pin);
 855         hapd->conf->ap_pin = NULL;
 856 }
 857
 858
 859 #ifdef CONFIG_WPS_NFC
 860
 861 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
 862                                              int ndef)
 863 {
 864         struct hostapd_data *hapd;
 865
 866         if (wpa_s->ap_iface == NULL)
 867                 return NULL;
 868         hapd = wpa_s->ap_iface->bss[0];
 869         return hostapd_wps_nfc_config_token(hapd, ndef);
 870 }
 871
 872
 873 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 874                                              int ndef)
 875 {
 876         struct hostapd_data *hapd;
 877
 878         if (wpa_s->ap_iface == NULL)
 879                 return NULL;
 880         hapd = wpa_s->ap_iface->bss[0];
 881         return hostapd_wps_nfc_hs_cr(hapd, ndef);
 882 }
 883
 884 #endif /* CONFIG_WPS_NFC */
 885
 886 #endif /* CONFIG_WPS */
 887
 888
 889 #ifdef CONFIG_CTRL_IFACE
 890
 891 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 892                             char *buf, size_t buflen)
 893 {
 894         if (wpa_s->ap_iface == NULL)
 895                 return -1;
 896         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 897                                             buf, buflen);
 898 }
 899
 900
 901 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 902                       char *buf, size_t buflen)
 903 {
 904         if (wpa_s->ap_iface == NULL)
 905                 return -1;
 906         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 907                                       buf, buflen);
 908 }
 909
 910
 911 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 912                            char *buf, size_t buflen)
 913 {
 914         if (wpa_s->ap_iface == NULL)
 915                 return -1;
 916         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 917                                            buf, buflen);
 918 }
 919
 920
 921 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 922                                    const char *txtaddr)
 923 {
 924         if (wpa_s->ap_iface == NULL)
 925                 return -1;
 926         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 927                                                txtaddr);
 928 }
 929
 930
 931 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 932                                      const char *txtaddr)
 933 {
 934         if (wpa_s->ap_iface == NULL)
 935                 return -1;
 936         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 937                                                  txtaddr);
 938 }
 939
 940
 941 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 942                                  size_t buflen, int verbose)
 943 {
 944         char *pos = buf, *end = buf + buflen;
 945         int ret;
 946         struct hostapd_bss_config *conf;
 947
 948         if (wpa_s->ap_iface == NULL)
 949                 return -1;
 950
 951         conf = wpa_s->ap_iface->bss[0]->conf;
 952         if (conf->wpa == 0)
 953                 return 0;
 954
 955         ret = os_snprintf(pos, end - pos,
 956                           "pairwise_cipher=%s\n"
 957                           "group_cipher=%s\n"
 958                           "key_mgmt=%s\n",
 959                           wpa_cipher_txt(conf->rsn_pairwise),
 960                           wpa_cipher_txt(conf->wpa_group),
 961                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 962                                            conf->wpa));
 963         if (ret < 0 || ret >= end - pos)
 964                 return pos - buf;
 965         pos += ret;
 966         return pos - buf;
 967 }
 968
 969 #endif /* CONFIG_CTRL_IFACE */
 970
 971
 972 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 973 {
 974         struct hostapd_iface *iface = wpa_s->ap_iface;
 975         struct wpa_ssid *ssid = wpa_s->current_ssid;
 976         struct hostapd_data *hapd;
 977
 978         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 979             ssid->mode == WPAS_MODE_INFRA ||
 980             ssid->mode == WPAS_MODE_IBSS)
 981                 return -1;
 982
 983 #ifdef CONFIG_P2P
 984         if (ssid->mode == WPAS_MODE_P2P_GO)
 985                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 986         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 987                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 988                         P2P_GROUP_FORMATION;
 989 #endif /* CONFIG_P2P */
 990
 991         hapd = iface->bss[0];
 992         if (hapd->drv_priv == NULL)
 993                 return -1;
 994         ieee802_11_set_beacons(iface);
 995         hostapd_set_ap_wps_ie(hapd);
 996
 997         return 0;
 998 }
 999
1000
1001 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1002                        int offset)
1003 {
1004         if (!wpa_s->ap_iface)
1005                 return;
1006
1007         wpa_s->assoc_freq = freq;
1008         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
1009 }
1010
1011
1012 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1013                                       const u8 *addr)
1014 {
1015         struct hostapd_data *hapd;
1016         struct hostapd_bss_config *conf;
1017
1018         if (!wpa_s->ap_iface)
1019                 return -1;
1020
1021         if (addr)
1022                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1023                            MAC2STR(addr));
1024         else
1025                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1026
1027         hapd = wpa_s->ap_iface->bss[0];
1028         conf = hapd->conf;
1029
1030         os_free(conf->accept_mac);
1031         conf->accept_mac = NULL;
1032         conf->num_accept_mac = 0;
1033         os_free(conf->deny_mac);
1034         conf->deny_mac = NULL;
1035         conf->num_deny_mac = 0;
1036
1037         if (addr == NULL) {
1038                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1039                 return 0;
1040         }
1041
1042         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1043         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1044         if (conf->accept_mac == NULL)
1045                 return -1;
1046         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1047         conf->num_accept_mac = 1;
1048
1049         return 0;
1050 }