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         int pairwise;
  50
  51         conf->driver = wpa_s->driver;
  52
  53         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  54
  55         if (ssid->frequency == 0) {
  56                 /* default channel 11 */
  57                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  58                 conf->channel = 11;
  59         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
  60                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  61                 conf->channel = (ssid->frequency - 2407) / 5;
  62         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
  63                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
  64                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
  65                 conf->channel = (ssid->frequency - 5000) / 5;
  66         } else {
  67                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  68                            ssid->frequency);
  69                 return -1;
  70         }
  71
  72         /* TODO: enable HT40 if driver supports it;
  73          * drop to 11b if driver does not support 11g */
  74
  75 #ifdef CONFIG_IEEE80211N
  76         /*
  77          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  78          * and a mask of allowed capabilities within conf->ht_capab.
  79          * Using default config settings for: conf->ht_op_mode_fixed,
  80          * conf->secondary_channel, conf->require_ht
  81          */
  82         if (wpa_s->hw.modes) {
  83                 struct hostapd_hw_modes *mode = NULL;
  84                 int i, no_ht = 0;
  85                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
  86                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
  87                                 mode = &wpa_s->hw.modes[i];
  88                                 break;
  89                         }
  90                 }
  91
  92 #ifdef CONFIG_HT_OVERRIDES
  93                 if (ssid->disable_ht) {
  94                         conf->ieee80211n = 0;
  95                         conf->ht_capab = 0;
  96                         no_ht = 1;
  97                 }
  98 #endif /* CONFIG_HT_OVERRIDES */
  99
 100                 if (!no_ht && mode && mode->ht_capab) {
 101                         conf->ieee80211n = 1;
 102 #ifdef CONFIG_P2P
 103                         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
 104                             (mode->ht_capab &
 105                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
 106                             ssid->ht40)
 107                                 conf->secondary_channel =
 108                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
 109                                                                conf->channel);
 110                         if (conf->secondary_channel)
 111                                 conf->ht_capab |=
 112                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 113 #endif /* CONFIG_P2P */
 114
 115                         /*
 116                          * white-list capabilities that won't cause issues
 117                          * to connecting stations, while leaving the current
 118                          * capabilities intact (currently disabled SMPS).
 119                          */
 120                         conf->ht_capab |= mode->ht_capab &
 121                                 (HT_CAP_INFO_GREEN_FIELD |
 122                                  HT_CAP_INFO_SHORT_GI20MHZ |
 123                                  HT_CAP_INFO_SHORT_GI40MHZ |
 124                                  HT_CAP_INFO_RX_STBC_MASK |
 125                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 126                 }
 127         }
 128 #endif /* CONFIG_IEEE80211N */
 129
 130 #ifdef CONFIG_P2P
 131         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 132                 /* Remove 802.11b rates from supported and basic rate sets */
 133                 int *list = os_malloc(4 * sizeof(int));
 134                 if (list) {
 135                         list[0] = 60;
 136                         list[1] = 120;
 137                         list[2] = 240;
 138                         list[3] = -1;
 139                 }
 140                 conf->basic_rates = list;
 141
 142                 list = os_malloc(9 * sizeof(int));
 143                 if (list) {
 144                         list[0] = 60;
 145                         list[1] = 90;
 146                         list[2] = 120;
 147                         list[3] = 180;
 148                         list[4] = 240;
 149                         list[5] = 360;
 150                         list[6] = 480;
 151                         list[7] = 540;
 152                         list[8] = -1;
 153                 }
 154                 conf->supported_rates = list;
 155         }
 156
 157         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 158 #endif /* CONFIG_P2P */
 159
 160         if (ssid->ssid_len == 0) {
 161                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 162                 return -1;
 163         }
 164         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 165         bss->ssid.ssid_len = ssid->ssid_len;
 166         bss->ssid.ssid_set = 1;
 167
 168         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 169
 170         if (ssid->auth_alg)
 171                 bss->auth_algs = ssid->auth_alg;
 172
 173         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 174                 bss->wpa = ssid->proto;
 175         bss->wpa_key_mgmt = ssid->key_mgmt;
 176         bss->wpa_pairwise = ssid->pairwise_cipher;
 177         if (ssid->passphrase) {
 178                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 179         } else if (ssid->psk_set) {
 180                 os_free(bss->ssid.wpa_psk);
 181                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 182                 if (bss->ssid.wpa_psk == NULL)
 183                         return -1;
 184                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 185                 bss->ssid.wpa_psk->group = 1;
 186         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 187                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 188                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 189                 int i;
 190                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 191                         if (ssid->wep_key_len[i] == 0)
 192                                 continue;
 193                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 194                         if (wep->key[i] == NULL)
 195                                 return -1;
 196                         os_memcpy(wep->key[i], ssid->wep_key[i],
 197                                   ssid->wep_key_len[i]);
 198                         wep->len[i] = ssid->wep_key_len[i];
 199                 }
 200                 wep->idx = ssid->wep_tx_keyidx;
 201                 wep->keys_set = 1;
 202         }
 203
 204         if (ssid->ap_max_inactivity)
 205                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 206
 207         if (ssid->dtim_period)
 208                 bss->dtim_period = ssid->dtim_period;
 209
 210         /* Select group cipher based on the enabled pairwise cipher suites */
 211         pairwise = 0;
 212         if (bss->wpa & 1)
 213                 pairwise |= bss->wpa_pairwise;
 214         if (bss->wpa & 2) {
 215                 if (bss->rsn_pairwise == 0)
 216                         bss->rsn_pairwise = bss->wpa_pairwise;
 217                 pairwise |= bss->rsn_pairwise;
 218         }
 219         if (pairwise & WPA_CIPHER_TKIP)
 220                 bss->wpa_group = WPA_CIPHER_TKIP;
 221         else if ((pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) ==
 222                  WPA_CIPHER_GCMP)
 223                 bss->wpa_group = WPA_CIPHER_GCMP;
 224         else
 225                 bss->wpa_group = WPA_CIPHER_CCMP;
 226
 227         if (bss->wpa && bss->ieee802_1x)
 228                 bss->ssid.security_policy = SECURITY_WPA;
 229         else if (bss->wpa)
 230                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 231         else if (bss->ieee802_1x) {
 232                 int cipher = WPA_CIPHER_NONE;
 233                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 234                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 235                 if (bss->default_wep_key_len)
 236                         cipher = bss->default_wep_key_len >= 13 ?
 237                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 238                 bss->wpa_group = cipher;
 239                 bss->wpa_pairwise = cipher;
 240                 bss->rsn_pairwise = cipher;
 241         } else if (bss->ssid.wep.keys_set) {
 242                 int cipher = WPA_CIPHER_WEP40;
 243                 if (bss->ssid.wep.len[0] >= 13)
 244                         cipher = WPA_CIPHER_WEP104;
 245                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 246                 bss->wpa_group = cipher;
 247                 bss->wpa_pairwise = cipher;
 248                 bss->rsn_pairwise = cipher;
 249         } else {
 250                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 251                 bss->wpa_group = WPA_CIPHER_NONE;
 252                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 253                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 254         }
 255
 256 #ifdef CONFIG_WPS
 257         /*
 258          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 259          * require user interaction to actually use it. Only the internal
 260          * Registrar is supported.
 261          */
 262         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 263             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 264                 goto no_wps;
 265 #ifdef CONFIG_WPS2
 266         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 267             (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 268                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 269                               * configuration */
 270 #endif /* CONFIG_WPS2 */
 271         bss->eap_server = 1;
 272
 273         if (!ssid->ignore_broadcast_ssid)
 274                 bss->wps_state = 2;
 275
 276         bss->ap_setup_locked = 2;
 277         if (wpa_s->conf->config_methods)
 278                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 279         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 280                   WPS_DEV_TYPE_LEN);
 281         if (wpa_s->conf->device_name) {
 282                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 283                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 284         }
 285         if (wpa_s->conf->manufacturer)
 286                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 287         if (wpa_s->conf->model_name)
 288                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 289         if (wpa_s->conf->model_number)
 290                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 291         if (wpa_s->conf->serial_number)
 292                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 293         if (is_nil_uuid(wpa_s->conf->uuid))
 294                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 295         else
 296                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 297         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 298         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 299 no_wps:
 300 #endif /* CONFIG_WPS */
 301
 302         if (wpa_s->max_stations &&
 303             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 304                 bss->max_num_sta = wpa_s->max_stations;
 305         else
 306                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 307
 308         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 309
 310         return 0;
 311 }
 312
 313
 314 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 315 {
 316 #ifdef CONFIG_P2P
 317         struct wpa_supplicant *wpa_s = ctx;
 318         const struct ieee80211_mgmt *mgmt;
 319         size_t hdr_len;
 320
 321         mgmt = (const struct ieee80211_mgmt *) buf;
 322         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 323         if (hdr_len > len)
 324                 return;
 325         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 326                            mgmt->u.action.category,
 327                            &mgmt->u.action.u.vs_public_action.action,
 328                            len - hdr_len, freq);
 329 #endif /* CONFIG_P2P */
 330 }
 331
 332
 333 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 334                             union wps_event_data *data)
 335 {
 336 #ifdef CONFIG_P2P
 337         struct wpa_supplicant *wpa_s = ctx;
 338
 339         if (event == WPS_EV_FAIL) {
 340                 struct wps_event_fail *fail = &data->fail;
 341
 342                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 343                     wpa_s == wpa_s->global->p2p_group_formation) {
 344                         /*
 345                          * src/ap/wps_hostapd.c has already sent this on the
 346                          * main interface, so only send on the parent interface
 347                          * here if needed.
 348                          */
 349                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 350                                 "msg=%d config_error=%d",
 351                                 fail->msg, fail->config_error);
 352                 }
 353                 wpas_p2p_wps_failed(wpa_s, fail);
 354         }
 355 #endif /* CONFIG_P2P */
 356 }
 357
 358
 359 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 360                                  int authorized, const u8 *p2p_dev_addr)
 361 {
 362         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 363 }
 364
 365
 366 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 367 {
 368 #ifdef CONFIG_P2P
 369         struct wpa_supplicant *wpa_s = ctx;
 370         const struct ieee80211_mgmt *mgmt;
 371         size_t hdr_len;
 372
 373         mgmt = (const struct ieee80211_mgmt *) buf;
 374         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 375         if (hdr_len > len)
 376                 return -1;
 377         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 378                            mgmt->u.action.category,
 379                            &mgmt->u.action.u.vs_public_action.action,
 380                            len - hdr_len, freq);
 381 #endif /* CONFIG_P2P */
 382         return 0;
 383 }
 384
 385
 386 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 387                            const u8 *bssid, const u8 *ie, size_t ie_len,
 388                            int ssi_signal)
 389 {
 390 #ifdef CONFIG_P2P
 391         struct wpa_supplicant *wpa_s = ctx;
 392         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 393                                      ssi_signal);
 394 #else /* CONFIG_P2P */
 395         return 0;
 396 #endif /* CONFIG_P2P */
 397 }
 398
 399
 400 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 401                                   const u8 *uuid_e)
 402 {
 403 #ifdef CONFIG_P2P
 404         struct wpa_supplicant *wpa_s = ctx;
 405         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 406 #endif /* CONFIG_P2P */
 407 }
 408
 409
 410 static void wpas_ap_configured_cb(void *ctx)
 411 {
 412         struct wpa_supplicant *wpa_s = ctx;
 413
 414         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 415
 416         if (wpa_s->ap_configured_cb)
 417                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 418                                         wpa_s->ap_configured_cb_data);
 419 }
 420
 421
 422 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 423                              struct wpa_ssid *ssid)
 424 {
 425         struct wpa_driver_associate_params params;
 426         struct hostapd_iface *hapd_iface;
 427         struct hostapd_config *conf;
 428         size_t i;
 429
 430         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 431                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 432                 return -1;
 433         }
 434
 435         wpa_supplicant_ap_deinit(wpa_s);
 436
 437         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 438                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 439
 440         os_memset(&params, 0, sizeof(params));
 441         params.ssid = ssid->ssid;
 442         params.ssid_len = ssid->ssid_len;
 443         switch (ssid->mode) {
 444         case WPAS_MODE_INFRA:
 445                 params.mode = IEEE80211_MODE_INFRA;
 446                 break;
 447         case WPAS_MODE_IBSS:
 448                 params.mode = IEEE80211_MODE_IBSS;
 449                 break;
 450         case WPAS_MODE_AP:
 451         case WPAS_MODE_P2P_GO:
 452         case WPAS_MODE_P2P_GROUP_FORMATION:
 453                 params.mode = IEEE80211_MODE_AP;
 454                 break;
 455         }
 456         params.freq = ssid->frequency;
 457
 458         params.wpa_proto = ssid->proto;
 459         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 460                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 461         else
 462                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 463         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 464
 465         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 466                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 467         else if (ssid->pairwise_cipher & WPA_CIPHER_GCMP)
 468                 wpa_s->pairwise_cipher = WPA_CIPHER_GCMP;
 469         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 470                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 471         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 472                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 473         else {
 474                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 475                            "cipher.");
 476                 return -1;
 477         }
 478         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 479         params.group_suite = params.pairwise_suite;
 480
 481 #ifdef CONFIG_P2P
 482         if (ssid->mode == WPAS_MODE_P2P_GO ||
 483             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 484                 params.p2p = 1;
 485 #endif /* CONFIG_P2P */
 486
 487         if (wpa_s->parent->set_ap_uapsd)
 488                 params.uapsd = wpa_s->parent->ap_uapsd;
 489         else
 490                 params.uapsd = -1;
 491
 492         if (wpa_drv_associate(wpa_s, &params) < 0) {
 493                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 494                 return -1;
 495         }
 496
 497         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 498         if (hapd_iface == NULL)
 499                 return -1;
 500         hapd_iface->owner = wpa_s;
 501         hapd_iface->drv_flags = wpa_s->drv_flags;
 502         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 503
 504         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 505         if (conf == NULL) {
 506                 wpa_supplicant_ap_deinit(wpa_s);
 507                 return -1;
 508         }
 509
 510         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 511                   wpa_s->conf->wmm_ac_params,
 512                   sizeof(wpa_s->conf->wmm_ac_params));
 513
 514         if (params.uapsd > 0) {
 515                 conf->bss->wmm_enabled = 1;
 516                 conf->bss->wmm_uapsd = 1;
 517         }
 518
 519         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 520                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 521                 wpa_supplicant_ap_deinit(wpa_s);
 522                 return -1;
 523         }
 524
 525 #ifdef CONFIG_P2P
 526         if (ssid->mode == WPAS_MODE_P2P_GO)
 527                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 528         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 529                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 530                         P2P_GROUP_FORMATION;
 531 #endif /* CONFIG_P2P */
 532
 533         hapd_iface->num_bss = conf->num_bss;
 534         hapd_iface->bss = os_calloc(conf->num_bss,
 535                                     sizeof(struct hostapd_data *));
 536         if (hapd_iface->bss == NULL) {
 537                 wpa_supplicant_ap_deinit(wpa_s);
 538                 return -1;
 539         }
 540
 541         for (i = 0; i < conf->num_bss; i++) {
 542                 hapd_iface->bss[i] =
 543                         hostapd_alloc_bss_data(hapd_iface, conf,
 544                                                &conf->bss[i]);
 545                 if (hapd_iface->bss[i] == NULL) {
 546                         wpa_supplicant_ap_deinit(wpa_s);
 547                         return -1;
 548                 }
 549
 550                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 551                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 552                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 553                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 554                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 555                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 556                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 557                                              ap_probe_req_rx, wpa_s);
 558                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 559                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 560                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 561                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 562                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 563                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 564 #ifdef CONFIG_P2P
 565                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 566                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 567                                                                     ssid);
 568 #endif /* CONFIG_P2P */
 569                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 570                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 571         }
 572
 573         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 574         hapd_iface->bss[0]->driver = wpa_s->driver;
 575         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 576
 577         wpa_s->current_ssid = ssid;
 578         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 579         wpa_s->assoc_freq = ssid->frequency;
 580
 581         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 582                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 583                 wpa_supplicant_ap_deinit(wpa_s);
 584                 return -1;
 585         }
 586
 587         return 0;
 588 }
 589
 590
 591 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 592 {
 593 #ifdef CONFIG_WPS
 594         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 595 #endif /* CONFIG_WPS */
 596
 597         if (wpa_s->ap_iface == NULL)
 598                 return;
 599
 600         wpa_s->current_ssid = NULL;
 601         wpa_s->assoc_freq = 0;
 602         wpa_s->reassociated_connection = 0;
 603 #ifdef CONFIG_P2P
 604         if (wpa_s->ap_iface->bss)
 605                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 606         wpas_p2p_group_deinit(wpa_s);
 607 #endif /* CONFIG_P2P */
 608         hostapd_interface_deinit(wpa_s->ap_iface);
 609         hostapd_interface_free(wpa_s->ap_iface);
 610         wpa_s->ap_iface = NULL;
 611         wpa_drv_deinit_ap(wpa_s);
 612 }
 613
 614
 615 void ap_tx_status(void *ctx, const u8 *addr,
 616                   const u8 *buf, size_t len, int ack)
 617 {
 618 #ifdef NEED_AP_MLME
 619         struct wpa_supplicant *wpa_s = ctx;
 620         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 621 #endif /* NEED_AP_MLME */
 622 }
 623
 624
 625 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 626                         const u8 *data, size_t len, int ack)
 627 {
 628 #ifdef NEED_AP_MLME
 629         struct wpa_supplicant *wpa_s = ctx;
 630         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 631 #endif /* NEED_AP_MLME */
 632 }
 633
 634
 635 void ap_client_poll_ok(void *ctx, const u8 *addr)
 636 {
 637 #ifdef NEED_AP_MLME
 638         struct wpa_supplicant *wpa_s = ctx;
 639         if (wpa_s->ap_iface)
 640                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 641 #endif /* NEED_AP_MLME */
 642 }
 643
 644
 645 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 646 {
 647 #ifdef NEED_AP_MLME
 648         struct wpa_supplicant *wpa_s = ctx;
 649         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 650 #endif /* NEED_AP_MLME */
 651 }
 652
 653
 654 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 655 {
 656 #ifdef NEED_AP_MLME
 657         struct wpa_supplicant *wpa_s = ctx;
 658         struct hostapd_frame_info fi;
 659         os_memset(&fi, 0, sizeof(fi));
 660         fi.datarate = rx_mgmt->datarate;
 661         fi.ssi_signal = rx_mgmt->ssi_signal;
 662         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 663                         rx_mgmt->frame_len, &fi);
 664 #endif /* NEED_AP_MLME */
 665 }
 666
 667
 668 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 669 {
 670 #ifdef NEED_AP_MLME
 671         struct wpa_supplicant *wpa_s = ctx;
 672         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 673 #endif /* NEED_AP_MLME */
 674 }
 675
 676
 677 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 678                                 const u8 *src_addr, const u8 *buf, size_t len)
 679 {
 680         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 681 }
 682
 683
 684 #ifdef CONFIG_WPS
 685
 686 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 687                               const u8 *p2p_dev_addr)
 688 {
 689         if (!wpa_s->ap_iface)
 690                 return -1;
 691         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 692                                          p2p_dev_addr);
 693 }
 694
 695
 696 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 697 {
 698         struct wps_registrar *reg;
 699         int reg_sel = 0, wps_sta = 0;
 700
 701         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 702                 return -1;
 703
 704         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 705         reg_sel = wps_registrar_wps_cancel(reg);
 706         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 707                                   ap_sta_wps_cancel, NULL);
 708
 709         if (!reg_sel && !wps_sta) {
 710                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 711                            "time");
 712                 return -1;
 713         }
 714
 715         /*
 716          * There are 2 cases to return wps cancel as success:
 717          * 1. When wps cancel was initiated but no connection has been
 718          *    established with client yet.
 719          * 2. Client is in the middle of exchanging WPS messages.
 720          */
 721
 722         return 0;
 723 }
 724
 725
 726 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 727                               const char *pin, char *buf, size_t buflen)
 728 {
 729         int ret, ret_len = 0;
 730
 731         if (!wpa_s->ap_iface)
 732                 return -1;
 733
 734         if (pin == NULL) {
 735                 unsigned int rpin = wps_generate_pin();
 736                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 737                 pin = buf;
 738         } else
 739                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 740
 741         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 742                                   0);
 743         if (ret)
 744                 return -1;
 745         return ret_len;
 746 }
 747
 748
 749 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 750 {
 751         struct wpa_supplicant *wpa_s = eloop_data;
 752         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 753         wpas_wps_ap_pin_disable(wpa_s);
 754 }
 755
 756
 757 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 758 {
 759         struct hostapd_data *hapd;
 760
 761         if (wpa_s->ap_iface == NULL)
 762                 return;
 763         hapd = wpa_s->ap_iface->bss[0];
 764         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 765         hapd->ap_pin_failures = 0;
 766         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 767         if (timeout > 0)
 768                 eloop_register_timeout(timeout, 0,
 769                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 770 }
 771
 772
 773 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 774 {
 775         struct hostapd_data *hapd;
 776
 777         if (wpa_s->ap_iface == NULL)
 778                 return;
 779         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 780         hapd = wpa_s->ap_iface->bss[0];
 781         os_free(hapd->conf->ap_pin);
 782         hapd->conf->ap_pin = NULL;
 783         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 784 }
 785
 786
 787 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 788 {
 789         struct hostapd_data *hapd;
 790         unsigned int pin;
 791         char pin_txt[9];
 792
 793         if (wpa_s->ap_iface == NULL)
 794                 return NULL;
 795         hapd = wpa_s->ap_iface->bss[0];
 796         pin = wps_generate_pin();
 797         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 798         os_free(hapd->conf->ap_pin);
 799         hapd->conf->ap_pin = os_strdup(pin_txt);
 800         if (hapd->conf->ap_pin == NULL)
 801                 return NULL;
 802         wpas_wps_ap_pin_enable(wpa_s, timeout);
 803
 804         return hapd->conf->ap_pin;
 805 }
 806
 807
 808 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 809 {
 810         struct hostapd_data *hapd;
 811         if (wpa_s->ap_iface == NULL)
 812                 return NULL;
 813         hapd = wpa_s->ap_iface->bss[0];
 814         return hapd->conf->ap_pin;
 815 }
 816
 817
 818 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 819                         int timeout)
 820 {
 821         struct hostapd_data *hapd;
 822         char pin_txt[9];
 823         int ret;
 824
 825         if (wpa_s->ap_iface == NULL)
 826                 return -1;
 827         hapd = wpa_s->ap_iface->bss[0];
 828         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 829         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 830                 return -1;
 831         os_free(hapd->conf->ap_pin);
 832         hapd->conf->ap_pin = os_strdup(pin_txt);
 833         if (hapd->conf->ap_pin == NULL)
 834                 return -1;
 835         wpas_wps_ap_pin_enable(wpa_s, timeout);
 836
 837         return 0;
 838 }
 839
 840
 841 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 842 {
 843         struct hostapd_data *hapd;
 844
 845         if (wpa_s->ap_iface == NULL)
 846                 return;
 847         hapd = wpa_s->ap_iface->bss[0];
 848
 849         /*
 850          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 851          * PIN if this happens multiple times to slow down brute force attacks.
 852          */
 853         hapd->ap_pin_failures++;
 854         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 855                    hapd->ap_pin_failures);
 856         if (hapd->ap_pin_failures < 3)
 857                 return;
 858
 859         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 860         hapd->ap_pin_failures = 0;
 861         os_free(hapd->conf->ap_pin);
 862         hapd->conf->ap_pin = NULL;
 863 }
 864
 865 #endif /* CONFIG_WPS */
 866
 867
 868 #ifdef CONFIG_CTRL_IFACE
 869
 870 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 871                             char *buf, size_t buflen)
 872 {
 873         if (wpa_s->ap_iface == NULL)
 874                 return -1;
 875         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 876                                             buf, buflen);
 877 }
 878
 879
 880 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 881                       char *buf, size_t buflen)
 882 {
 883         if (wpa_s->ap_iface == NULL)
 884                 return -1;
 885         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 886                                       buf, buflen);
 887 }
 888
 889
 890 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 891                            char *buf, size_t buflen)
 892 {
 893         if (wpa_s->ap_iface == NULL)
 894                 return -1;
 895         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 896                                            buf, buflen);
 897 }
 898
 899
 900 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 901                                    const char *txtaddr)
 902 {
 903         if (wpa_s->ap_iface == NULL)
 904                 return -1;
 905         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 906                                                txtaddr);
 907 }
 908
 909
 910 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 911                                      const char *txtaddr)
 912 {
 913         if (wpa_s->ap_iface == NULL)
 914                 return -1;
 915         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 916                                                  txtaddr);
 917 }
 918
 919
 920 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 921                                  size_t buflen, int verbose)
 922 {
 923         char *pos = buf, *end = buf + buflen;
 924         int ret;
 925         struct hostapd_bss_config *conf;
 926
 927         if (wpa_s->ap_iface == NULL)
 928                 return -1;
 929
 930         conf = wpa_s->ap_iface->bss[0]->conf;
 931         if (conf->wpa == 0)
 932                 return 0;
 933
 934         ret = os_snprintf(pos, end - pos,
 935                           "pairwise_cipher=%s\n"
 936                           "group_cipher=%s\n"
 937                           "key_mgmt=%s\n",
 938                           wpa_cipher_txt(conf->rsn_pairwise),
 939                           wpa_cipher_txt(conf->wpa_group),
 940                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 941                                            conf->wpa));
 942         if (ret < 0 || ret >= end - pos)
 943                 return pos - buf;
 944         pos += ret;
 945         return pos - buf;
 946 }
 947
 948 #endif /* CONFIG_CTRL_IFACE */
 949
 950
 951 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 952 {
 953         struct hostapd_iface *iface = wpa_s->ap_iface;
 954         struct wpa_ssid *ssid = wpa_s->current_ssid;
 955         struct hostapd_data *hapd;
 956
 957         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 958             ssid->mode == WPAS_MODE_INFRA ||
 959             ssid->mode == WPAS_MODE_IBSS)
 960                 return -1;
 961
 962 #ifdef CONFIG_P2P
 963         if (ssid->mode == WPAS_MODE_P2P_GO)
 964                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 965         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 966                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 967                         P2P_GROUP_FORMATION;
 968 #endif /* CONFIG_P2P */
 969
 970         hapd = iface->bss[0];
 971         if (hapd->drv_priv == NULL)
 972                 return -1;
 973         ieee802_11_set_beacons(iface);
 974         hostapd_set_ap_wps_ie(hapd);
 975
 976         return 0;
 977 }
 978
 979
 980 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
 981                        int offset)
 982 {
 983         if (!wpa_s->ap_iface)
 984                 return;
 985
 986         wpa_s->assoc_freq = freq;
 987         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
 988 }
 989
 990
 991 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 992                                       const u8 *addr)
 993 {
 994         struct hostapd_data *hapd;
 995         struct hostapd_bss_config *conf;
 996
 997         if (!wpa_s->ap_iface)
 998                 return -1;
 999
1000         if (addr)
1001                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1002                            MAC2STR(addr));
1003         else
1004                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1005
1006         hapd = wpa_s->ap_iface->bss[0];
1007         conf = hapd->conf;
1008
1009         os_free(conf->accept_mac);
1010         conf->accept_mac = NULL;
1011         conf->num_accept_mac = 0;
1012         os_free(conf->deny_mac);
1013         conf->deny_mac = NULL;
1014         conf->num_deny_mac = 0;
1015
1016         if (addr == NULL) {
1017                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1018                 return 0;
1019         }
1020
1021         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1022         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1023         if (conf->accept_mac == NULL)
1024                 return -1;
1025         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1026         conf->num_accept_mac = 1;
1027
1028         return 0;
1029 }