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
 502         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 503         if (conf == NULL) {
 504                 wpa_supplicant_ap_deinit(wpa_s);
 505                 return -1;
 506         }
 507
 508         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 509                   wpa_s->conf->wmm_ac_params,
 510                   sizeof(wpa_s->conf->wmm_ac_params));
 511
 512         if (params.uapsd > 0) {
 513                 conf->bss->wmm_enabled = 1;
 514                 conf->bss->wmm_uapsd = 1;
 515         }
 516
 517         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 518                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 519                 wpa_supplicant_ap_deinit(wpa_s);
 520                 return -1;
 521         }
 522
 523 #ifdef CONFIG_P2P
 524         if (ssid->mode == WPAS_MODE_P2P_GO)
 525                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 526         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 527                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 528                         P2P_GROUP_FORMATION;
 529 #endif /* CONFIG_P2P */
 530
 531         hapd_iface->num_bss = conf->num_bss;
 532         hapd_iface->bss = os_calloc(conf->num_bss,
 533                                     sizeof(struct hostapd_data *));
 534         if (hapd_iface->bss == NULL) {
 535                 wpa_supplicant_ap_deinit(wpa_s);
 536                 return -1;
 537         }
 538
 539         for (i = 0; i < conf->num_bss; i++) {
 540                 hapd_iface->bss[i] =
 541                         hostapd_alloc_bss_data(hapd_iface, conf,
 542                                                &conf->bss[i]);
 543                 if (hapd_iface->bss[i] == NULL) {
 544                         wpa_supplicant_ap_deinit(wpa_s);
 545                         return -1;
 546                 }
 547
 548                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 549                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 550                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 551                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 552                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 553                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 554                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 555                                              ap_probe_req_rx, wpa_s);
 556                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 557                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 558                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 559                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 560                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 561                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 562 #ifdef CONFIG_P2P
 563                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 564                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 565                                                                     ssid);
 566 #endif /* CONFIG_P2P */
 567                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 568                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 569         }
 570
 571         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 572         hapd_iface->bss[0]->driver = wpa_s->driver;
 573         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 574
 575         wpa_s->current_ssid = ssid;
 576         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 577         wpa_s->assoc_freq = ssid->frequency;
 578
 579         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 580                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 581                 wpa_supplicant_ap_deinit(wpa_s);
 582                 return -1;
 583         }
 584
 585         return 0;
 586 }
 587
 588
 589 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 590 {
 591 #ifdef CONFIG_WPS
 592         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 593 #endif /* CONFIG_WPS */
 594
 595         if (wpa_s->ap_iface == NULL)
 596                 return;
 597
 598         wpa_s->current_ssid = NULL;
 599         wpa_s->assoc_freq = 0;
 600 #ifdef CONFIG_P2P
 601         if (wpa_s->ap_iface->bss)
 602                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 603         wpas_p2p_group_deinit(wpa_s);
 604 #endif /* CONFIG_P2P */
 605         hostapd_interface_deinit(wpa_s->ap_iface);
 606         hostapd_interface_free(wpa_s->ap_iface);
 607         wpa_s->ap_iface = NULL;
 608         wpa_drv_deinit_ap(wpa_s);
 609 }
 610
 611
 612 void ap_tx_status(void *ctx, const u8 *addr,
 613                   const u8 *buf, size_t len, int ack)
 614 {
 615 #ifdef NEED_AP_MLME
 616         struct wpa_supplicant *wpa_s = ctx;
 617         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 618 #endif /* NEED_AP_MLME */
 619 }
 620
 621
 622 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 623                         const u8 *data, size_t len, int ack)
 624 {
 625 #ifdef NEED_AP_MLME
 626         struct wpa_supplicant *wpa_s = ctx;
 627         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 628 #endif /* NEED_AP_MLME */
 629 }
 630
 631
 632 void ap_client_poll_ok(void *ctx, const u8 *addr)
 633 {
 634 #ifdef NEED_AP_MLME
 635         struct wpa_supplicant *wpa_s = ctx;
 636         if (wpa_s->ap_iface)
 637                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 638 #endif /* NEED_AP_MLME */
 639 }
 640
 641
 642 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 643 {
 644 #ifdef NEED_AP_MLME
 645         struct wpa_supplicant *wpa_s = ctx;
 646         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 647 #endif /* NEED_AP_MLME */
 648 }
 649
 650
 651 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 652 {
 653 #ifdef NEED_AP_MLME
 654         struct wpa_supplicant *wpa_s = ctx;
 655         struct hostapd_frame_info fi;
 656         os_memset(&fi, 0, sizeof(fi));
 657         fi.datarate = rx_mgmt->datarate;
 658         fi.ssi_signal = rx_mgmt->ssi_signal;
 659         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 660                         rx_mgmt->frame_len, &fi);
 661 #endif /* NEED_AP_MLME */
 662 }
 663
 664
 665 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 666 {
 667 #ifdef NEED_AP_MLME
 668         struct wpa_supplicant *wpa_s = ctx;
 669         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 670 #endif /* NEED_AP_MLME */
 671 }
 672
 673
 674 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 675                                 const u8 *src_addr, const u8 *buf, size_t len)
 676 {
 677         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 678 }
 679
 680
 681 #ifdef CONFIG_WPS
 682
 683 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 684                               const u8 *p2p_dev_addr)
 685 {
 686         if (!wpa_s->ap_iface)
 687                 return -1;
 688         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 689                                          p2p_dev_addr);
 690 }
 691
 692
 693 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 694 {
 695         struct wps_registrar *reg;
 696         int reg_sel = 0, wps_sta = 0;
 697
 698         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 699                 return -1;
 700
 701         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 702         reg_sel = wps_registrar_wps_cancel(reg);
 703         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 704                                   ap_sta_wps_cancel, NULL);
 705
 706         if (!reg_sel && !wps_sta) {
 707                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 708                            "time");
 709                 return -1;
 710         }
 711
 712         /*
 713          * There are 2 cases to return wps cancel as success:
 714          * 1. When wps cancel was initiated but no connection has been
 715          *    established with client yet.
 716          * 2. Client is in the middle of exchanging WPS messages.
 717          */
 718
 719         return 0;
 720 }
 721
 722
 723 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 724                               const char *pin, char *buf, size_t buflen,
 725                               int timeout)
 726 {
 727         int ret, ret_len = 0;
 728
 729         if (!wpa_s->ap_iface)
 730                 return -1;
 731
 732         if (pin == NULL) {
 733                 unsigned int rpin = wps_generate_pin();
 734                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 735                 pin = buf;
 736         } else
 737                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 738
 739         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 740                                   timeout);
 741         if (ret)
 742                 return -1;
 743         return ret_len;
 744 }
 745
 746
 747 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 748 {
 749         struct wpa_supplicant *wpa_s = eloop_data;
 750         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 751         wpas_wps_ap_pin_disable(wpa_s);
 752 }
 753
 754
 755 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 756 {
 757         struct hostapd_data *hapd;
 758
 759         if (wpa_s->ap_iface == NULL)
 760                 return;
 761         hapd = wpa_s->ap_iface->bss[0];
 762         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 763         hapd->ap_pin_failures = 0;
 764         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 765         if (timeout > 0)
 766                 eloop_register_timeout(timeout, 0,
 767                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 768 }
 769
 770
 771 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 772 {
 773         struct hostapd_data *hapd;
 774
 775         if (wpa_s->ap_iface == NULL)
 776                 return;
 777         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 778         hapd = wpa_s->ap_iface->bss[0];
 779         os_free(hapd->conf->ap_pin);
 780         hapd->conf->ap_pin = NULL;
 781         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 782 }
 783
 784
 785 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 786 {
 787         struct hostapd_data *hapd;
 788         unsigned int pin;
 789         char pin_txt[9];
 790
 791         if (wpa_s->ap_iface == NULL)
 792                 return NULL;
 793         hapd = wpa_s->ap_iface->bss[0];
 794         pin = wps_generate_pin();
 795         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 796         os_free(hapd->conf->ap_pin);
 797         hapd->conf->ap_pin = os_strdup(pin_txt);
 798         if (hapd->conf->ap_pin == NULL)
 799                 return NULL;
 800         wpas_wps_ap_pin_enable(wpa_s, timeout);
 801
 802         return hapd->conf->ap_pin;
 803 }
 804
 805
 806 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 807 {
 808         struct hostapd_data *hapd;
 809         if (wpa_s->ap_iface == NULL)
 810                 return NULL;
 811         hapd = wpa_s->ap_iface->bss[0];
 812         return hapd->conf->ap_pin;
 813 }
 814
 815
 816 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 817                         int timeout)
 818 {
 819         struct hostapd_data *hapd;
 820         char pin_txt[9];
 821         int ret;
 822
 823         if (wpa_s->ap_iface == NULL)
 824                 return -1;
 825         hapd = wpa_s->ap_iface->bss[0];
 826         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 827         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 828                 return -1;
 829         os_free(hapd->conf->ap_pin);
 830         hapd->conf->ap_pin = os_strdup(pin_txt);
 831         if (hapd->conf->ap_pin == NULL)
 832                 return -1;
 833         wpas_wps_ap_pin_enable(wpa_s, timeout);
 834
 835         return 0;
 836 }
 837
 838
 839 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 840 {
 841         struct hostapd_data *hapd;
 842
 843         if (wpa_s->ap_iface == NULL)
 844                 return;
 845         hapd = wpa_s->ap_iface->bss[0];
 846
 847         /*
 848          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 849          * PIN if this happens multiple times to slow down brute force attacks.
 850          */
 851         hapd->ap_pin_failures++;
 852         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 853                    hapd->ap_pin_failures);
 854         if (hapd->ap_pin_failures < 3)
 855                 return;
 856
 857         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 858         hapd->ap_pin_failures = 0;
 859         os_free(hapd->conf->ap_pin);
 860         hapd->conf->ap_pin = NULL;
 861 }
 862
 863
 864 #ifdef CONFIG_WPS_NFC
 865
 866 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
 867                                              int ndef)
 868 {
 869         struct hostapd_data *hapd;
 870
 871         if (wpa_s->ap_iface == NULL)
 872                 return NULL;
 873         hapd = wpa_s->ap_iface->bss[0];
 874         return hostapd_wps_nfc_config_token(hapd, ndef);
 875 }
 876
 877
 878 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 879                                              int ndef)
 880 {
 881         struct hostapd_data *hapd;
 882
 883         if (wpa_s->ap_iface == NULL)
 884                 return NULL;
 885         hapd = wpa_s->ap_iface->bss[0];
 886         return hostapd_wps_nfc_hs_cr(hapd, ndef);
 887 }
 888
 889 #endif /* CONFIG_WPS_NFC */
 890
 891 #endif /* CONFIG_WPS */
 892
 893
 894 #ifdef CONFIG_CTRL_IFACE
 895
 896 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 897                             char *buf, size_t buflen)
 898 {
 899         if (wpa_s->ap_iface == NULL)
 900                 return -1;
 901         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 902                                             buf, buflen);
 903 }
 904
 905
 906 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 907                       char *buf, size_t buflen)
 908 {
 909         if (wpa_s->ap_iface == NULL)
 910                 return -1;
 911         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 912                                       buf, buflen);
 913 }
 914
 915
 916 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 917                            char *buf, size_t buflen)
 918 {
 919         if (wpa_s->ap_iface == NULL)
 920                 return -1;
 921         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 922                                            buf, buflen);
 923 }
 924
 925
 926 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 927                                    const char *txtaddr)
 928 {
 929         if (wpa_s->ap_iface == NULL)
 930                 return -1;
 931         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 932                                                txtaddr);
 933 }
 934
 935
 936 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 937                                      const char *txtaddr)
 938 {
 939         if (wpa_s->ap_iface == NULL)
 940                 return -1;
 941         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 942                                                  txtaddr);
 943 }
 944
 945
 946 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 947                                  size_t buflen, int verbose)
 948 {
 949         char *pos = buf, *end = buf + buflen;
 950         int ret;
 951         struct hostapd_bss_config *conf;
 952
 953         if (wpa_s->ap_iface == NULL)
 954                 return -1;
 955
 956         conf = wpa_s->ap_iface->bss[0]->conf;
 957         if (conf->wpa == 0)
 958                 return 0;
 959
 960         ret = os_snprintf(pos, end - pos,
 961                           "pairwise_cipher=%s\n"
 962                           "group_cipher=%s\n"
 963                           "key_mgmt=%s\n",
 964                           wpa_cipher_txt(conf->rsn_pairwise),
 965                           wpa_cipher_txt(conf->wpa_group),
 966                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 967                                            conf->wpa));
 968         if (ret < 0 || ret >= end - pos)
 969                 return pos - buf;
 970         pos += ret;
 971         return pos - buf;
 972 }
 973
 974 #endif /* CONFIG_CTRL_IFACE */
 975
 976
 977 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 978 {
 979         struct hostapd_iface *iface = wpa_s->ap_iface;
 980         struct wpa_ssid *ssid = wpa_s->current_ssid;
 981         struct hostapd_data *hapd;
 982
 983         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 984             ssid->mode == WPAS_MODE_INFRA ||
 985             ssid->mode == WPAS_MODE_IBSS)
 986                 return -1;
 987
 988 #ifdef CONFIG_P2P
 989         if (ssid->mode == WPAS_MODE_P2P_GO)
 990                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 991         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 992                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 993                         P2P_GROUP_FORMATION;
 994 #endif /* CONFIG_P2P */
 995
 996         hapd = iface->bss[0];
 997         if (hapd->drv_priv == NULL)
 998                 return -1;
 999         ieee802_11_set_beacons(iface);
1000         hostapd_set_ap_wps_ie(hapd);
1001
1002         return 0;
1003 }
1004
1005
1006 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1007                        int offset)
1008 {
1009         if (!wpa_s->ap_iface)
1010                 return;
1011
1012         wpa_s->assoc_freq = freq;
1013         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
1014 }
1015
1016
1017 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1018                                       const u8 *addr)
1019 {
1020         struct hostapd_data *hapd;
1021         struct hostapd_bss_config *conf;
1022
1023         if (!wpa_s->ap_iface)
1024                 return -1;
1025
1026         if (addr)
1027                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1028                            MAC2STR(addr));
1029         else
1030                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1031
1032         hapd = wpa_s->ap_iface->bss[0];
1033         conf = hapd->conf;
1034
1035         os_free(conf->accept_mac);
1036         conf->accept_mac = NULL;
1037         conf->num_accept_mac = 0;
1038         os_free(conf->deny_mac);
1039         conf->deny_mac = NULL;
1040         conf->num_deny_mac = 0;
1041
1042         if (addr == NULL) {
1043                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1044                 return 0;
1045         }
1046
1047         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1048         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1049         if (conf->accept_mac == NULL)
1050                 return -1;
1051         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1052         conf->num_accept_mac = 1;
1053
1054         return 0;
1055 }