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         if (wpa_s->conf->ap_vendor_elements) {
 309                 bss->vendor_elements =
 310                         wpabuf_dup(wpa_s->conf->ap_vendor_elements);
 311         }
 312
 313         return 0;
 314 }
 315
 316
 317 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 318 {
 319 #ifdef CONFIG_P2P
 320         struct wpa_supplicant *wpa_s = ctx;
 321         const struct ieee80211_mgmt *mgmt;
 322         size_t hdr_len;
 323
 324         mgmt = (const struct ieee80211_mgmt *) buf;
 325         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 326         if (hdr_len > len)
 327                 return;
 328         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 329                            mgmt->u.action.category,
 330                            &mgmt->u.action.u.vs_public_action.action,
 331                            len - hdr_len, freq);
 332 #endif /* CONFIG_P2P */
 333 }
 334
 335
 336 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 337                             union wps_event_data *data)
 338 {
 339 #ifdef CONFIG_P2P
 340         struct wpa_supplicant *wpa_s = ctx;
 341
 342         if (event == WPS_EV_FAIL) {
 343                 struct wps_event_fail *fail = &data->fail;
 344
 345                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 346                     wpa_s == wpa_s->global->p2p_group_formation) {
 347                         /*
 348                          * src/ap/wps_hostapd.c has already sent this on the
 349                          * main interface, so only send on the parent interface
 350                          * here if needed.
 351                          */
 352                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 353                                 "msg=%d config_error=%d",
 354                                 fail->msg, fail->config_error);
 355                 }
 356                 wpas_p2p_wps_failed(wpa_s, fail);
 357         }
 358 #endif /* CONFIG_P2P */
 359 }
 360
 361
 362 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 363                                  int authorized, const u8 *p2p_dev_addr)
 364 {
 365         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 366 }
 367
 368
 369 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 370 {
 371 #ifdef CONFIG_P2P
 372         struct wpa_supplicant *wpa_s = ctx;
 373         const struct ieee80211_mgmt *mgmt;
 374         size_t hdr_len;
 375
 376         mgmt = (const struct ieee80211_mgmt *) buf;
 377         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 378         if (hdr_len > len)
 379                 return -1;
 380         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 381                            mgmt->u.action.category,
 382                            &mgmt->u.action.u.vs_public_action.action,
 383                            len - hdr_len, freq);
 384 #endif /* CONFIG_P2P */
 385         return 0;
 386 }
 387
 388
 389 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 390                            const u8 *bssid, const u8 *ie, size_t ie_len,
 391                            int ssi_signal)
 392 {
 393 #ifdef CONFIG_P2P
 394         struct wpa_supplicant *wpa_s = ctx;
 395         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 396                                      ssi_signal);
 397 #else /* CONFIG_P2P */
 398         return 0;
 399 #endif /* CONFIG_P2P */
 400 }
 401
 402
 403 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 404                                   const u8 *uuid_e)
 405 {
 406 #ifdef CONFIG_P2P
 407         struct wpa_supplicant *wpa_s = ctx;
 408         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 409 #endif /* CONFIG_P2P */
 410 }
 411
 412
 413 static void wpas_ap_configured_cb(void *ctx)
 414 {
 415         struct wpa_supplicant *wpa_s = ctx;
 416
 417         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 418
 419         if (wpa_s->ap_configured_cb)
 420                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 421                                         wpa_s->ap_configured_cb_data);
 422 }
 423
 424
 425 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 426                              struct wpa_ssid *ssid)
 427 {
 428         struct wpa_driver_associate_params params;
 429         struct hostapd_iface *hapd_iface;
 430         struct hostapd_config *conf;
 431         size_t i;
 432
 433         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 434                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 435                 return -1;
 436         }
 437
 438         wpa_supplicant_ap_deinit(wpa_s);
 439
 440         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 441                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 442
 443         os_memset(&params, 0, sizeof(params));
 444         params.ssid = ssid->ssid;
 445         params.ssid_len = ssid->ssid_len;
 446         switch (ssid->mode) {
 447         case WPAS_MODE_INFRA:
 448                 params.mode = IEEE80211_MODE_INFRA;
 449                 break;
 450         case WPAS_MODE_IBSS:
 451                 params.mode = IEEE80211_MODE_IBSS;
 452                 break;
 453         case WPAS_MODE_AP:
 454         case WPAS_MODE_P2P_GO:
 455         case WPAS_MODE_P2P_GROUP_FORMATION:
 456                 params.mode = IEEE80211_MODE_AP;
 457                 break;
 458         }
 459         params.freq = ssid->frequency;
 460
 461         params.wpa_proto = ssid->proto;
 462         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 463                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 464         else
 465                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 466         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 467
 468         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
 469                                                           1);
 470         if (wpa_s->pairwise_cipher < 0) {
 471                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 472                            "cipher.");
 473                 return -1;
 474         }
 475         params.pairwise_suite =
 476                 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher);
 477         params.group_suite = params.pairwise_suite;
 478
 479 #ifdef CONFIG_P2P
 480         if (ssid->mode == WPAS_MODE_P2P_GO ||
 481             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 482                 params.p2p = 1;
 483 #endif /* CONFIG_P2P */
 484
 485         if (wpa_s->parent->set_ap_uapsd)
 486                 params.uapsd = wpa_s->parent->ap_uapsd;
 487         else
 488                 params.uapsd = -1;
 489
 490         if (wpa_drv_associate(wpa_s, &params) < 0) {
 491                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 492                 return -1;
 493         }
 494
 495         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 496         if (hapd_iface == NULL)
 497                 return -1;
 498         hapd_iface->owner = wpa_s;
 499         hapd_iface->drv_flags = wpa_s->drv_flags;
 500         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 501         hapd_iface->extended_capa = wpa_s->extended_capa;
 502         hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
 503         hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
 504
 505         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 506         if (conf == NULL) {
 507                 wpa_supplicant_ap_deinit(wpa_s);
 508                 return -1;
 509         }
 510
 511         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 512                   wpa_s->conf->wmm_ac_params,
 513                   sizeof(wpa_s->conf->wmm_ac_params));
 514
 515         if (params.uapsd > 0) {
 516                 conf->bss->wmm_enabled = 1;
 517                 conf->bss->wmm_uapsd = 1;
 518         }
 519
 520         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 521                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 522                 wpa_supplicant_ap_deinit(wpa_s);
 523                 return -1;
 524         }
 525
 526 #ifdef CONFIG_P2P
 527         if (ssid->mode == WPAS_MODE_P2P_GO)
 528                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 529         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 530                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 531                         P2P_GROUP_FORMATION;
 532 #endif /* CONFIG_P2P */
 533
 534         hapd_iface->num_bss = conf->num_bss;
 535         hapd_iface->bss = os_calloc(conf->num_bss,
 536                                     sizeof(struct hostapd_data *));
 537         if (hapd_iface->bss == NULL) {
 538                 wpa_supplicant_ap_deinit(wpa_s);
 539                 return -1;
 540         }
 541
 542         for (i = 0; i < conf->num_bss; i++) {
 543                 hapd_iface->bss[i] =
 544                         hostapd_alloc_bss_data(hapd_iface, conf,
 545                                                &conf->bss[i]);
 546                 if (hapd_iface->bss[i] == NULL) {
 547                         wpa_supplicant_ap_deinit(wpa_s);
 548                         return -1;
 549                 }
 550
 551                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 552                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 553                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 554                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 555                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 556                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 557                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 558                                              ap_probe_req_rx, wpa_s);
 559                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 560                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 561                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 562                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 563                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 564                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 565 #ifdef CONFIG_P2P
 566                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 567                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 568                                                                     ssid);
 569 #endif /* CONFIG_P2P */
 570                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 571                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 572         }
 573
 574         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 575         hapd_iface->bss[0]->driver = wpa_s->driver;
 576         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 577
 578         wpa_s->current_ssid = ssid;
 579         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 580         wpa_s->assoc_freq = ssid->frequency;
 581
 582         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 583                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 584                 wpa_supplicant_ap_deinit(wpa_s);
 585                 return -1;
 586         }
 587
 588         return 0;
 589 }
 590
 591
 592 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 593 {
 594 #ifdef CONFIG_WPS
 595         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 596 #endif /* CONFIG_WPS */
 597
 598         if (wpa_s->ap_iface == NULL)
 599                 return;
 600
 601         wpa_s->current_ssid = NULL;
 602         wpa_s->assoc_freq = 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                               int timeout)
 729 {
 730         int ret, ret_len = 0;
 731
 732         if (!wpa_s->ap_iface)
 733                 return -1;
 734
 735         if (pin == NULL) {
 736                 unsigned int rpin = wps_generate_pin();
 737                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 738                 pin = buf;
 739         } else
 740                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 741
 742         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 743                                   timeout);
 744         if (ret)
 745                 return -1;
 746         return ret_len;
 747 }
 748
 749
 750 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 751 {
 752         struct wpa_supplicant *wpa_s = eloop_data;
 753         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 754         wpas_wps_ap_pin_disable(wpa_s);
 755 }
 756
 757
 758 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 759 {
 760         struct hostapd_data *hapd;
 761
 762         if (wpa_s->ap_iface == NULL)
 763                 return;
 764         hapd = wpa_s->ap_iface->bss[0];
 765         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 766         hapd->ap_pin_failures = 0;
 767         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 768         if (timeout > 0)
 769                 eloop_register_timeout(timeout, 0,
 770                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 771 }
 772
 773
 774 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 775 {
 776         struct hostapd_data *hapd;
 777
 778         if (wpa_s->ap_iface == NULL)
 779                 return;
 780         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 781         hapd = wpa_s->ap_iface->bss[0];
 782         os_free(hapd->conf->ap_pin);
 783         hapd->conf->ap_pin = NULL;
 784         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 785 }
 786
 787
 788 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 789 {
 790         struct hostapd_data *hapd;
 791         unsigned int pin;
 792         char pin_txt[9];
 793
 794         if (wpa_s->ap_iface == NULL)
 795                 return NULL;
 796         hapd = wpa_s->ap_iface->bss[0];
 797         pin = wps_generate_pin();
 798         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 799         os_free(hapd->conf->ap_pin);
 800         hapd->conf->ap_pin = os_strdup(pin_txt);
 801         if (hapd->conf->ap_pin == NULL)
 802                 return NULL;
 803         wpas_wps_ap_pin_enable(wpa_s, timeout);
 804
 805         return hapd->conf->ap_pin;
 806 }
 807
 808
 809 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 810 {
 811         struct hostapd_data *hapd;
 812         if (wpa_s->ap_iface == NULL)
 813                 return NULL;
 814         hapd = wpa_s->ap_iface->bss[0];
 815         return hapd->conf->ap_pin;
 816 }
 817
 818
 819 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 820                         int timeout)
 821 {
 822         struct hostapd_data *hapd;
 823         char pin_txt[9];
 824         int ret;
 825
 826         if (wpa_s->ap_iface == NULL)
 827                 return -1;
 828         hapd = wpa_s->ap_iface->bss[0];
 829         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 830         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 831                 return -1;
 832         os_free(hapd->conf->ap_pin);
 833         hapd->conf->ap_pin = os_strdup(pin_txt);
 834         if (hapd->conf->ap_pin == NULL)
 835                 return -1;
 836         wpas_wps_ap_pin_enable(wpa_s, timeout);
 837
 838         return 0;
 839 }
 840
 841
 842 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 843 {
 844         struct hostapd_data *hapd;
 845
 846         if (wpa_s->ap_iface == NULL)
 847                 return;
 848         hapd = wpa_s->ap_iface->bss[0];
 849
 850         /*
 851          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 852          * PIN if this happens multiple times to slow down brute force attacks.
 853          */
 854         hapd->ap_pin_failures++;
 855         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 856                    hapd->ap_pin_failures);
 857         if (hapd->ap_pin_failures < 3)
 858                 return;
 859
 860         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 861         hapd->ap_pin_failures = 0;
 862         os_free(hapd->conf->ap_pin);
 863         hapd->conf->ap_pin = NULL;
 864 }
 865
 866
 867 #ifdef CONFIG_WPS_NFC
 868
 869 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
 870                                              int ndef)
 871 {
 872         struct hostapd_data *hapd;
 873
 874         if (wpa_s->ap_iface == NULL)
 875                 return NULL;
 876         hapd = wpa_s->ap_iface->bss[0];
 877         return hostapd_wps_nfc_config_token(hapd, ndef);
 878 }
 879
 880
 881 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 882                                              int ndef)
 883 {
 884         struct hostapd_data *hapd;
 885
 886         if (wpa_s->ap_iface == NULL)
 887                 return NULL;
 888         hapd = wpa_s->ap_iface->bss[0];
 889         return hostapd_wps_nfc_hs_cr(hapd, ndef);
 890 }
 891
 892 #endif /* CONFIG_WPS_NFC */
 893
 894 #endif /* CONFIG_WPS */
 895
 896
 897 #ifdef CONFIG_CTRL_IFACE
 898
 899 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 900                             char *buf, size_t buflen)
 901 {
 902         if (wpa_s->ap_iface == NULL)
 903                 return -1;
 904         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 905                                             buf, buflen);
 906 }
 907
 908
 909 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 910                       char *buf, size_t buflen)
 911 {
 912         if (wpa_s->ap_iface == NULL)
 913                 return -1;
 914         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 915                                       buf, buflen);
 916 }
 917
 918
 919 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 920                            char *buf, size_t buflen)
 921 {
 922         if (wpa_s->ap_iface == NULL)
 923                 return -1;
 924         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 925                                            buf, buflen);
 926 }
 927
 928
 929 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 930                                    const char *txtaddr)
 931 {
 932         if (wpa_s->ap_iface == NULL)
 933                 return -1;
 934         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 935                                                txtaddr);
 936 }
 937
 938
 939 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 940                                      const char *txtaddr)
 941 {
 942         if (wpa_s->ap_iface == NULL)
 943                 return -1;
 944         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 945                                                  txtaddr);
 946 }
 947
 948
 949 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 950                                  size_t buflen, int verbose)
 951 {
 952         char *pos = buf, *end = buf + buflen;
 953         int ret;
 954         struct hostapd_bss_config *conf;
 955
 956         if (wpa_s->ap_iface == NULL)
 957                 return -1;
 958
 959         conf = wpa_s->ap_iface->bss[0]->conf;
 960         if (conf->wpa == 0)
 961                 return 0;
 962
 963         ret = os_snprintf(pos, end - pos,
 964                           "pairwise_cipher=%s\n"
 965                           "group_cipher=%s\n"
 966                           "key_mgmt=%s\n",
 967                           wpa_cipher_txt(conf->rsn_pairwise),
 968                           wpa_cipher_txt(conf->wpa_group),
 969                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 970                                            conf->wpa));
 971         if (ret < 0 || ret >= end - pos)
 972                 return pos - buf;
 973         pos += ret;
 974         return pos - buf;
 975 }
 976
 977 #endif /* CONFIG_CTRL_IFACE */
 978
 979
 980 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 981 {
 982         struct hostapd_iface *iface = wpa_s->ap_iface;
 983         struct wpa_ssid *ssid = wpa_s->current_ssid;
 984         struct hostapd_data *hapd;
 985
 986         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 987             ssid->mode == WPAS_MODE_INFRA ||
 988             ssid->mode == WPAS_MODE_IBSS)
 989                 return -1;
 990
 991 #ifdef CONFIG_P2P
 992         if (ssid->mode == WPAS_MODE_P2P_GO)
 993                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 994         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 995                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 996                         P2P_GROUP_FORMATION;
 997 #endif /* CONFIG_P2P */
 998
 999         hapd = iface->bss[0];
1000         if (hapd->drv_priv == NULL)
1001                 return -1;
1002         ieee802_11_set_beacons(iface);
1003         hostapd_set_ap_wps_ie(hapd);
1004
1005         return 0;
1006 }
1007
1008
1009 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1010                        int offset)
1011 {
1012         if (!wpa_s->ap_iface)
1013                 return;
1014
1015         wpa_s->assoc_freq = freq;
1016         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
1017 }
1018
1019
1020 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1021                                       const u8 *addr)
1022 {
1023         struct hostapd_data *hapd;
1024         struct hostapd_bss_config *conf;
1025
1026         if (!wpa_s->ap_iface)
1027                 return -1;
1028
1029         if (addr)
1030                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1031                            MAC2STR(addr));
1032         else
1033                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1034
1035         hapd = wpa_s->ap_iface->bss[0];
1036         conf = hapd->conf;
1037
1038         os_free(conf->accept_mac);
1039         conf->accept_mac = NULL;
1040         conf->num_accept_mac = 0;
1041         os_free(conf->deny_mac);
1042         conf->deny_mac = NULL;
1043         conf->num_deny_mac = 0;
1044
1045         if (addr == NULL) {
1046                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1047                 return 0;
1048         }
1049
1050         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1051         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1052         if (conf->accept_mac == NULL)
1053                 return -1;
1054         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1055         conf->num_accept_mac = 1;
1056
1057         return 0;
1058 }