wpa_supplicant/ap.c

   1 /*
   2  * WPA Supplicant - Basic AP mode support routines
   3  * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2009, Atheros Communications
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include "utils/includes.h"
  11
  12 #include "utils/common.h"
  13 #include "utils/eloop.h"
  14 #include "utils/uuid.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/wpa_ctrl.h"
  17 #include "eapol_supp/eapol_supp_sm.h"
  18 #include "ap/hostapd.h"
  19 #include "ap/ap_config.h"
  20 #include "ap/ap_drv_ops.h"
  21 #ifdef NEED_AP_MLME
  22 #include "ap/ieee802_11.h"
  23 #endif /* NEED_AP_MLME */
  24 #include "ap/beacon.h"
  25 #include "ap/ieee802_1x.h"
  26 #include "ap/wps_hostapd.h"
  27 #include "ap/ctrl_iface_ap.h"
  28 #include "wps/wps.h"
  29 #include "common/ieee802_11_defs.h"
  30 #include "config_ssid.h"
  31 #include "config.h"
  32 #include "wpa_supplicant_i.h"
  33 #include "driver_i.h"
  34 #include "p2p_supplicant.h"
  35 #include "ap.h"
  36 #include "ap/sta_info.h"
  37 #include "notify.h"
  38
  39
  40 #ifdef CONFIG_WPS
  41 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  42 #endif /* CONFIG_WPS */
  43
  44
  45 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
  46                                   struct wpa_ssid *ssid,
  47                                   struct hostapd_config *conf)
  48 {
  49         struct hostapd_bss_config *bss = &conf->bss[0];
  50
  51         conf->driver = wpa_s->driver;
  52
  53         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  54
  55         conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
  56                                                &conf->channel);
  57         if (conf->hw_mode == NUM_HOSTAPD_MODES) {
  58                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  59                            ssid->frequency);
  60                 return -1;
  61         }
  62
  63         /* TODO: enable HT40 if driver supports it;
  64          * drop to 11b if driver does not support 11g */
  65
  66 #ifdef CONFIG_IEEE80211N
  67         /*
  68          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  69          * and a mask of allowed capabilities within conf->ht_capab.
  70          * Using default config settings for: conf->ht_op_mode_fixed,
  71          * conf->secondary_channel, conf->require_ht
  72          */
  73         if (wpa_s->hw.modes) {
  74                 struct hostapd_hw_modes *mode = NULL;
  75                 int i, no_ht = 0;
  76                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
  77                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
  78                                 mode = &wpa_s->hw.modes[i];
  79                                 break;
  80                         }
  81                 }
  82
  83 #ifdef CONFIG_HT_OVERRIDES
  84                 if (ssid->disable_ht) {
  85                         conf->ieee80211n = 0;
  86                         conf->ht_capab = 0;
  87                         no_ht = 1;
  88                 }
  89 #endif /* CONFIG_HT_OVERRIDES */
  90
  91                 if (!no_ht && mode && mode->ht_capab) {
  92                         conf->ieee80211n = 1;
  93 #ifdef CONFIG_P2P
  94                         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
  95                             (mode->ht_capab &
  96                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
  97                             ssid->ht40)
  98                                 conf->secondary_channel =
  99                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
 100                                                                conf->channel);
 101                         if (conf->secondary_channel)
 102                                 conf->ht_capab |=
 103                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 104 #endif /* CONFIG_P2P */
 105
 106                         /*
 107                          * white-list capabilities that won't cause issues
 108                          * to connecting stations, while leaving the current
 109                          * capabilities intact (currently disabled SMPS).
 110                          */
 111                         conf->ht_capab |= mode->ht_capab &
 112                                 (HT_CAP_INFO_GREEN_FIELD |
 113                                  HT_CAP_INFO_SHORT_GI20MHZ |
 114                                  HT_CAP_INFO_SHORT_GI40MHZ |
 115                                  HT_CAP_INFO_RX_STBC_MASK |
 116                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 117                 }
 118         }
 119 #endif /* CONFIG_IEEE80211N */
 120
 121 #ifdef CONFIG_P2P
 122         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
 123             (ssid->mode == WPAS_MODE_P2P_GO ||
 124              ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
 125                 /* Remove 802.11b rates from supported and basic rate sets */
 126                 int *list = os_malloc(4 * sizeof(int));
 127                 if (list) {
 128                         list[0] = 60;
 129                         list[1] = 120;
 130                         list[2] = 240;
 131                         list[3] = -1;
 132                 }
 133                 conf->basic_rates = list;
 134
 135                 list = os_malloc(9 * sizeof(int));
 136                 if (list) {
 137                         list[0] = 60;
 138                         list[1] = 90;
 139                         list[2] = 120;
 140                         list[3] = 180;
 141                         list[4] = 240;
 142                         list[5] = 360;
 143                         list[6] = 480;
 144                         list[7] = 540;
 145                         list[8] = -1;
 146                 }
 147                 conf->supported_rates = list;
 148         }
 149
 150         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 151         bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
 152 #endif /* CONFIG_P2P */
 153
 154         if (ssid->ssid_len == 0) {
 155                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 156                 return -1;
 157         }
 158         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 159         bss->ssid.ssid_len = ssid->ssid_len;
 160         bss->ssid.ssid_set = 1;
 161
 162         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 163
 164         if (ssid->auth_alg)
 165                 bss->auth_algs = ssid->auth_alg;
 166
 167         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 168                 bss->wpa = ssid->proto;
 169         bss->wpa_key_mgmt = ssid->key_mgmt;
 170         bss->wpa_pairwise = ssid->pairwise_cipher;
 171         if (ssid->psk_set) {
 172                 os_free(bss->ssid.wpa_psk);
 173                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 174                 if (bss->ssid.wpa_psk == NULL)
 175                         return -1;
 176                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 177                 bss->ssid.wpa_psk->group = 1;
 178         } else if (ssid->passphrase) {
 179                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 180         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 181                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 182                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 183                 int i;
 184                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 185                         if (ssid->wep_key_len[i] == 0)
 186                                 continue;
 187                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 188                         if (wep->key[i] == NULL)
 189                                 return -1;
 190                         os_memcpy(wep->key[i], ssid->wep_key[i],
 191                                   ssid->wep_key_len[i]);
 192                         wep->len[i] = ssid->wep_key_len[i];
 193                 }
 194                 wep->idx = ssid->wep_tx_keyidx;
 195                 wep->keys_set = 1;
 196         }
 197
 198         if (ssid->ap_max_inactivity)
 199                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 200
 201         if (ssid->dtim_period)
 202                 bss->dtim_period = ssid->dtim_period;
 203         else if (wpa_s->conf->dtim_period)
 204                 bss->dtim_period = wpa_s->conf->dtim_period;
 205
 206         if (ssid->beacon_int)
 207                 conf->beacon_int = ssid->beacon_int;
 208         else if (wpa_s->conf->beacon_int)
 209                 conf->beacon_int = wpa_s->conf->beacon_int;
 210
 211         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
 212                 bss->rsn_pairwise = bss->wpa_pairwise;
 213         bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
 214                                                     bss->rsn_pairwise);
 215
 216         if (bss->wpa && bss->ieee802_1x)
 217                 bss->ssid.security_policy = SECURITY_WPA;
 218         else if (bss->wpa)
 219                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 220         else if (bss->ieee802_1x) {
 221                 int cipher = WPA_CIPHER_NONE;
 222                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 223                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 224                 if (bss->default_wep_key_len)
 225                         cipher = bss->default_wep_key_len >= 13 ?
 226                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 227                 bss->wpa_group = cipher;
 228                 bss->wpa_pairwise = cipher;
 229                 bss->rsn_pairwise = cipher;
 230         } else if (bss->ssid.wep.keys_set) {
 231                 int cipher = WPA_CIPHER_WEP40;
 232                 if (bss->ssid.wep.len[0] >= 13)
 233                         cipher = WPA_CIPHER_WEP104;
 234                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 235                 bss->wpa_group = cipher;
 236                 bss->wpa_pairwise = cipher;
 237                 bss->rsn_pairwise = cipher;
 238         } else {
 239                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 240                 bss->wpa_group = WPA_CIPHER_NONE;
 241                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 242                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 243         }
 244
 245         if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
 246             (bss->wpa_group == WPA_CIPHER_CCMP ||
 247              bss->wpa_group == WPA_CIPHER_GCMP)) {
 248                 /*
 249                  * Strong ciphers do not need frequent rekeying, so increase
 250                  * the default GTK rekeying period to 24 hours.
 251                  */
 252                 bss->wpa_group_rekey = 86400;
 253         }
 254
 255 #ifdef CONFIG_WPS
 256         /*
 257          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 258          * require user interaction to actually use it. Only the internal
 259          * Registrar is supported.
 260          */
 261         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 262             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 263                 goto no_wps;
 264 #ifdef CONFIG_WPS2
 265         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 266             (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 267                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 268                               * configuration */
 269 #endif /* CONFIG_WPS2 */
 270         bss->eap_server = 1;
 271
 272         if (!ssid->ignore_broadcast_ssid)
 273                 bss->wps_state = 2;
 274
 275         bss->ap_setup_locked = 2;
 276         if (wpa_s->conf->config_methods)
 277                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 278         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 279                   WPS_DEV_TYPE_LEN);
 280         if (wpa_s->conf->device_name) {
 281                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 282                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 283         }
 284         if (wpa_s->conf->manufacturer)
 285                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 286         if (wpa_s->conf->model_name)
 287                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 288         if (wpa_s->conf->model_number)
 289                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 290         if (wpa_s->conf->serial_number)
 291                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 292         if (is_nil_uuid(wpa_s->conf->uuid))
 293                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 294         else
 295                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 296         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 297         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 298 no_wps:
 299 #endif /* CONFIG_WPS */
 300
 301         if (wpa_s->max_stations &&
 302             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 303                 bss->max_num_sta = wpa_s->max_stations;
 304         else
 305                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 306
 307         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 308
 309         if (wpa_s->conf->ap_vendor_elements) {
 310                 bss->vendor_elements =
 311                         wpabuf_dup(wpa_s->conf->ap_vendor_elements);
 312         }
 313
 314         return 0;
 315 }
 316
 317
 318 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 319 {
 320 #ifdef CONFIG_P2P
 321         struct wpa_supplicant *wpa_s = ctx;
 322         const struct ieee80211_mgmt *mgmt;
 323         size_t hdr_len;
 324
 325         mgmt = (const struct ieee80211_mgmt *) buf;
 326         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 327         if (hdr_len > len)
 328                 return;
 329         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 330                            mgmt->u.action.category,
 331                            &mgmt->u.action.u.vs_public_action.action,
 332                            len - hdr_len, freq);
 333 #endif /* CONFIG_P2P */
 334 }
 335
 336
 337 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 338                             union wps_event_data *data)
 339 {
 340 #ifdef CONFIG_P2P
 341         struct wpa_supplicant *wpa_s = ctx;
 342
 343         if (event == WPS_EV_FAIL) {
 344                 struct wps_event_fail *fail = &data->fail;
 345
 346                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 347                     wpa_s == wpa_s->global->p2p_group_formation) {
 348                         /*
 349                          * src/ap/wps_hostapd.c has already sent this on the
 350                          * main interface, so only send on the parent interface
 351                          * here if needed.
 352                          */
 353                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 354                                 "msg=%d config_error=%d",
 355                                 fail->msg, fail->config_error);
 356                 }
 357                 wpas_p2p_wps_failed(wpa_s, fail);
 358         }
 359 #endif /* CONFIG_P2P */
 360 }
 361
 362
 363 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 364                                  int authorized, const u8 *p2p_dev_addr)
 365 {
 366         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 367 }
 368
 369
 370 #ifdef CONFIG_P2P
 371 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
 372                           const u8 *psk, size_t psk_len)
 373 {
 374
 375         struct wpa_supplicant *wpa_s = ctx;
 376         if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
 377                 return;
 378         wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
 379 }
 380 #endif /* CONFIG_P2P */
 381
 382
 383 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 384 {
 385 #ifdef CONFIG_P2P
 386         struct wpa_supplicant *wpa_s = ctx;
 387         const struct ieee80211_mgmt *mgmt;
 388         size_t hdr_len;
 389
 390         mgmt = (const struct ieee80211_mgmt *) buf;
 391         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 392         if (hdr_len > len)
 393                 return -1;
 394         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 395                            mgmt->u.action.category,
 396                            &mgmt->u.action.u.vs_public_action.action,
 397                            len - hdr_len, freq);
 398 #endif /* CONFIG_P2P */
 399         return 0;
 400 }
 401
 402
 403 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 404                            const u8 *bssid, const u8 *ie, size_t ie_len,
 405                            int ssi_signal)
 406 {
 407 #ifdef CONFIG_P2P
 408         struct wpa_supplicant *wpa_s = ctx;
 409         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 410                                      ssi_signal);
 411 #else /* CONFIG_P2P */
 412         return 0;
 413 #endif /* CONFIG_P2P */
 414 }
 415
 416
 417 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 418                                   const u8 *uuid_e)
 419 {
 420 #ifdef CONFIG_P2P
 421         struct wpa_supplicant *wpa_s = ctx;
 422         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 423 #endif /* CONFIG_P2P */
 424 }
 425
 426
 427 static void wpas_ap_configured_cb(void *ctx)
 428 {
 429         struct wpa_supplicant *wpa_s = ctx;
 430
 431         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 432
 433         if (wpa_s->ap_configured_cb)
 434                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 435                                         wpa_s->ap_configured_cb_data);
 436 }
 437
 438
 439 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 440                              struct wpa_ssid *ssid)
 441 {
 442         struct wpa_driver_associate_params params;
 443         struct hostapd_iface *hapd_iface;
 444         struct hostapd_config *conf;
 445         size_t i;
 446
 447         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 448                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 449                 return -1;
 450         }
 451
 452         wpa_supplicant_ap_deinit(wpa_s);
 453
 454         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 455                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 456
 457         os_memset(&params, 0, sizeof(params));
 458         params.ssid = ssid->ssid;
 459         params.ssid_len = ssid->ssid_len;
 460         switch (ssid->mode) {
 461         case WPAS_MODE_INFRA:
 462                 params.mode = IEEE80211_MODE_INFRA;
 463                 break;
 464         case WPAS_MODE_IBSS:
 465                 params.mode = IEEE80211_MODE_IBSS;
 466                 break;
 467         case WPAS_MODE_AP:
 468         case WPAS_MODE_P2P_GO:
 469         case WPAS_MODE_P2P_GROUP_FORMATION:
 470                 params.mode = IEEE80211_MODE_AP;
 471                 break;
 472         }
 473         if (ssid->frequency == 0)
 474                 ssid->frequency = 2462; /* default channel 11 */
 475         params.freq = ssid->frequency;
 476
 477         params.wpa_proto = ssid->proto;
 478         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 479                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 480         else
 481                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 482         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 483
 484         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
 485                                                           1);
 486         if (wpa_s->pairwise_cipher < 0) {
 487                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 488                            "cipher.");
 489                 return -1;
 490         }
 491         params.pairwise_suite =
 492                 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher);
 493         params.group_suite = params.pairwise_suite;
 494
 495 #ifdef CONFIG_P2P
 496         if (ssid->mode == WPAS_MODE_P2P_GO ||
 497             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 498                 params.p2p = 1;
 499 #endif /* CONFIG_P2P */
 500
 501         if (wpa_s->parent->set_ap_uapsd)
 502                 params.uapsd = wpa_s->parent->ap_uapsd;
 503         else
 504                 params.uapsd = -1;
 505
 506         if (wpa_drv_associate(wpa_s, &params) < 0) {
 507                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 508                 return -1;
 509         }
 510
 511         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 512         if (hapd_iface == NULL)
 513                 return -1;
 514         hapd_iface->owner = wpa_s;
 515         hapd_iface->drv_flags = wpa_s->drv_flags;
 516         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 517         hapd_iface->extended_capa = wpa_s->extended_capa;
 518         hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
 519         hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
 520
 521         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 522         if (conf == NULL) {
 523                 wpa_supplicant_ap_deinit(wpa_s);
 524                 return -1;
 525         }
 526
 527         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 528                   wpa_s->conf->wmm_ac_params,
 529                   sizeof(wpa_s->conf->wmm_ac_params));
 530
 531         if (params.uapsd > 0) {
 532                 conf->bss->wmm_enabled = 1;
 533                 conf->bss->wmm_uapsd = 1;
 534         }
 535
 536         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 537                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 538                 wpa_supplicant_ap_deinit(wpa_s);
 539                 return -1;
 540         }
 541
 542 #ifdef CONFIG_P2P
 543         if (ssid->mode == WPAS_MODE_P2P_GO)
 544                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 545         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 546                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 547                         P2P_GROUP_FORMATION;
 548 #endif /* CONFIG_P2P */
 549
 550         hapd_iface->num_bss = conf->num_bss;
 551         hapd_iface->bss = os_calloc(conf->num_bss,
 552                                     sizeof(struct hostapd_data *));
 553         if (hapd_iface->bss == NULL) {
 554                 wpa_supplicant_ap_deinit(wpa_s);
 555                 return -1;
 556         }
 557
 558         for (i = 0; i < conf->num_bss; i++) {
 559                 hapd_iface->bss[i] =
 560                         hostapd_alloc_bss_data(hapd_iface, conf,
 561                                                &conf->bss[i]);
 562                 if (hapd_iface->bss[i] == NULL) {
 563                         wpa_supplicant_ap_deinit(wpa_s);
 564                         return -1;
 565                 }
 566
 567                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 568                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 569                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 570                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 571                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 572                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 573                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 574                                              ap_probe_req_rx, wpa_s);
 575                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 576                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 577                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 578                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 579                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 580                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 581 #ifdef CONFIG_P2P
 582                 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
 583                 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
 584                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 585                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 586                                                                     ssid);
 587 #endif /* CONFIG_P2P */
 588                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 589                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 590         }
 591
 592         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 593         hapd_iface->bss[0]->driver = wpa_s->driver;
 594         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 595
 596         wpa_s->current_ssid = ssid;
 597         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 598         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 599         wpa_s->assoc_freq = ssid->frequency;
 600
 601         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 602                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 603                 wpa_supplicant_ap_deinit(wpa_s);
 604                 return -1;
 605         }
 606
 607         return 0;
 608 }
 609
 610
 611 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 612 {
 613 #ifdef CONFIG_WPS
 614         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 615 #endif /* CONFIG_WPS */
 616
 617         if (wpa_s->ap_iface == NULL)
 618                 return;
 619
 620         wpa_s->current_ssid = NULL;
 621         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 622         wpa_s->assoc_freq = 0;
 623 #ifdef CONFIG_P2P
 624         if (wpa_s->ap_iface->bss)
 625                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 626         wpas_p2p_group_deinit(wpa_s);
 627 #endif /* CONFIG_P2P */
 628         hostapd_interface_deinit(wpa_s->ap_iface);
 629         hostapd_interface_free(wpa_s->ap_iface);
 630         wpa_s->ap_iface = NULL;
 631         wpa_drv_deinit_ap(wpa_s);
 632 }
 633
 634
 635 void ap_tx_status(void *ctx, const u8 *addr,
 636                   const u8 *buf, size_t len, int ack)
 637 {
 638 #ifdef NEED_AP_MLME
 639         struct wpa_supplicant *wpa_s = ctx;
 640         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 641 #endif /* NEED_AP_MLME */
 642 }
 643
 644
 645 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 646                         const u8 *data, size_t len, int ack)
 647 {
 648 #ifdef NEED_AP_MLME
 649         struct wpa_supplicant *wpa_s = ctx;
 650         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 651 #endif /* NEED_AP_MLME */
 652 }
 653
 654
 655 void ap_client_poll_ok(void *ctx, const u8 *addr)
 656 {
 657 #ifdef NEED_AP_MLME
 658         struct wpa_supplicant *wpa_s = ctx;
 659         if (wpa_s->ap_iface)
 660                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 661 #endif /* NEED_AP_MLME */
 662 }
 663
 664
 665 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 666 {
 667 #ifdef NEED_AP_MLME
 668         struct wpa_supplicant *wpa_s = ctx;
 669         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 670 #endif /* NEED_AP_MLME */
 671 }
 672
 673
 674 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 675 {
 676 #ifdef NEED_AP_MLME
 677         struct wpa_supplicant *wpa_s = ctx;
 678         struct hostapd_frame_info fi;
 679         os_memset(&fi, 0, sizeof(fi));
 680         fi.datarate = rx_mgmt->datarate;
 681         fi.ssi_signal = rx_mgmt->ssi_signal;
 682         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 683                         rx_mgmt->frame_len, &fi);
 684 #endif /* NEED_AP_MLME */
 685 }
 686
 687
 688 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 689 {
 690 #ifdef NEED_AP_MLME
 691         struct wpa_supplicant *wpa_s = ctx;
 692         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 693 #endif /* NEED_AP_MLME */
 694 }
 695
 696
 697 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 698                                 const u8 *src_addr, const u8 *buf, size_t len)
 699 {
 700         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 701 }
 702
 703
 704 #ifdef CONFIG_WPS
 705
 706 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 707                               const u8 *p2p_dev_addr)
 708 {
 709         if (!wpa_s->ap_iface)
 710                 return -1;
 711         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 712                                          p2p_dev_addr);
 713 }
 714
 715
 716 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 717 {
 718         struct wps_registrar *reg;
 719         int reg_sel = 0, wps_sta = 0;
 720
 721         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 722                 return -1;
 723
 724         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 725         reg_sel = wps_registrar_wps_cancel(reg);
 726         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 727                                   ap_sta_wps_cancel, NULL);
 728
 729         if (!reg_sel && !wps_sta) {
 730                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 731                            "time");
 732                 return -1;
 733         }
 734
 735         /*
 736          * There are 2 cases to return wps cancel as success:
 737          * 1. When wps cancel was initiated but no connection has been
 738          *    established with client yet.
 739          * 2. Client is in the middle of exchanging WPS messages.
 740          */
 741
 742         return 0;
 743 }
 744
 745
 746 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 747                               const char *pin, char *buf, size_t buflen,
 748                               int timeout)
 749 {
 750         int ret, ret_len = 0;
 751
 752         if (!wpa_s->ap_iface)
 753                 return -1;
 754
 755         if (pin == NULL) {
 756                 unsigned int rpin = wps_generate_pin();
 757                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 758                 pin = buf;
 759         } else
 760                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 761
 762         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 763                                   timeout);
 764         if (ret)
 765                 return -1;
 766         return ret_len;
 767 }
 768
 769
 770 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 771 {
 772         struct wpa_supplicant *wpa_s = eloop_data;
 773         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 774         wpas_wps_ap_pin_disable(wpa_s);
 775 }
 776
 777
 778 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 779 {
 780         struct hostapd_data *hapd;
 781
 782         if (wpa_s->ap_iface == NULL)
 783                 return;
 784         hapd = wpa_s->ap_iface->bss[0];
 785         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 786         hapd->ap_pin_failures = 0;
 787         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 788         if (timeout > 0)
 789                 eloop_register_timeout(timeout, 0,
 790                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 791 }
 792
 793
 794 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 795 {
 796         struct hostapd_data *hapd;
 797
 798         if (wpa_s->ap_iface == NULL)
 799                 return;
 800         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 801         hapd = wpa_s->ap_iface->bss[0];
 802         os_free(hapd->conf->ap_pin);
 803         hapd->conf->ap_pin = NULL;
 804         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 805 }
 806
 807
 808 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 809 {
 810         struct hostapd_data *hapd;
 811         unsigned int pin;
 812         char pin_txt[9];
 813
 814         if (wpa_s->ap_iface == NULL)
 815                 return NULL;
 816         hapd = wpa_s->ap_iface->bss[0];
 817         pin = wps_generate_pin();
 818         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 819         os_free(hapd->conf->ap_pin);
 820         hapd->conf->ap_pin = os_strdup(pin_txt);
 821         if (hapd->conf->ap_pin == NULL)
 822                 return NULL;
 823         wpas_wps_ap_pin_enable(wpa_s, timeout);
 824
 825         return hapd->conf->ap_pin;
 826 }
 827
 828
 829 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 830 {
 831         struct hostapd_data *hapd;
 832         if (wpa_s->ap_iface == NULL)
 833                 return NULL;
 834         hapd = wpa_s->ap_iface->bss[0];
 835         return hapd->conf->ap_pin;
 836 }
 837
 838
 839 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 840                         int timeout)
 841 {
 842         struct hostapd_data *hapd;
 843         char pin_txt[9];
 844         int ret;
 845
 846         if (wpa_s->ap_iface == NULL)
 847                 return -1;
 848         hapd = wpa_s->ap_iface->bss[0];
 849         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 850         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 851                 return -1;
 852         os_free(hapd->conf->ap_pin);
 853         hapd->conf->ap_pin = os_strdup(pin_txt);
 854         if (hapd->conf->ap_pin == NULL)
 855                 return -1;
 856         wpas_wps_ap_pin_enable(wpa_s, timeout);
 857
 858         return 0;
 859 }
 860
 861
 862 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 863 {
 864         struct hostapd_data *hapd;
 865
 866         if (wpa_s->ap_iface == NULL)
 867                 return;
 868         hapd = wpa_s->ap_iface->bss[0];
 869
 870         /*
 871          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 872          * PIN if this happens multiple times to slow down brute force attacks.
 873          */
 874         hapd->ap_pin_failures++;
 875         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 876                    hapd->ap_pin_failures);
 877         if (hapd->ap_pin_failures < 3)
 878                 return;
 879
 880         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 881         hapd->ap_pin_failures = 0;
 882         os_free(hapd->conf->ap_pin);
 883         hapd->conf->ap_pin = NULL;
 884 }
 885
 886
 887 #ifdef CONFIG_WPS_NFC
 888
 889 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
 890                                              int ndef)
 891 {
 892         struct hostapd_data *hapd;
 893
 894         if (wpa_s->ap_iface == NULL)
 895                 return NULL;
 896         hapd = wpa_s->ap_iface->bss[0];
 897         return hostapd_wps_nfc_config_token(hapd, ndef);
 898 }
 899
 900
 901 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 902                                              int ndef)
 903 {
 904         struct hostapd_data *hapd;
 905
 906         if (wpa_s->ap_iface == NULL)
 907                 return NULL;
 908         hapd = wpa_s->ap_iface->bss[0];
 909         return hostapd_wps_nfc_hs_cr(hapd, ndef);
 910 }
 911
 912 #endif /* CONFIG_WPS_NFC */
 913
 914 #endif /* CONFIG_WPS */
 915
 916
 917 #ifdef CONFIG_CTRL_IFACE
 918
 919 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 920                             char *buf, size_t buflen)
 921 {
 922         if (wpa_s->ap_iface == NULL)
 923                 return -1;
 924         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 925                                             buf, buflen);
 926 }
 927
 928
 929 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 930                       char *buf, size_t buflen)
 931 {
 932         if (wpa_s->ap_iface == NULL)
 933                 return -1;
 934         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 935                                       buf, buflen);
 936 }
 937
 938
 939 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 940                            char *buf, size_t buflen)
 941 {
 942         if (wpa_s->ap_iface == NULL)
 943                 return -1;
 944         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 945                                            buf, buflen);
 946 }
 947
 948
 949 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 950                                    const char *txtaddr)
 951 {
 952         if (wpa_s->ap_iface == NULL)
 953                 return -1;
 954         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 955                                                txtaddr);
 956 }
 957
 958
 959 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 960                                      const char *txtaddr)
 961 {
 962         if (wpa_s->ap_iface == NULL)
 963                 return -1;
 964         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 965                                                  txtaddr);
 966 }
 967
 968
 969 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 970                                  size_t buflen, int verbose)
 971 {
 972         char *pos = buf, *end = buf + buflen;
 973         int ret;
 974         struct hostapd_bss_config *conf;
 975
 976         if (wpa_s->ap_iface == NULL)
 977                 return -1;
 978
 979         conf = wpa_s->ap_iface->bss[0]->conf;
 980         if (conf->wpa == 0)
 981                 return 0;
 982
 983         ret = os_snprintf(pos, end - pos,
 984                           "pairwise_cipher=%s\n"
 985                           "group_cipher=%s\n"
 986                           "key_mgmt=%s\n",
 987                           wpa_cipher_txt(conf->rsn_pairwise),
 988                           wpa_cipher_txt(conf->wpa_group),
 989                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 990                                            conf->wpa));
 991         if (ret < 0 || ret >= end - pos)
 992                 return pos - buf;
 993         pos += ret;
 994         return pos - buf;
 995 }
 996
 997 #endif /* CONFIG_CTRL_IFACE */
 998
 999
1000 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1001 {
1002         struct hostapd_iface *iface = wpa_s->ap_iface;
1003         struct wpa_ssid *ssid = wpa_s->current_ssid;
1004         struct hostapd_data *hapd;
1005
1006         if (ssid == NULL || wpa_s->ap_iface == NULL ||
1007             ssid->mode == WPAS_MODE_INFRA ||
1008             ssid->mode == WPAS_MODE_IBSS)
1009                 return -1;
1010
1011 #ifdef CONFIG_P2P
1012         if (ssid->mode == WPAS_MODE_P2P_GO)
1013                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1014         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1015                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1016                         P2P_GROUP_FORMATION;
1017 #endif /* CONFIG_P2P */
1018
1019         hapd = iface->bss[0];
1020         if (hapd->drv_priv == NULL)
1021                 return -1;
1022         ieee802_11_set_beacons(iface);
1023         hostapd_set_ap_wps_ie(hapd);
1024
1025         return 0;
1026 }
1027
1028
1029 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1030                        int offset)
1031 {
1032         if (!wpa_s->ap_iface)
1033                 return;
1034
1035         wpa_s->assoc_freq = freq;
1036         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
1037 }
1038
1039
1040 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1041                                       const u8 *addr)
1042 {
1043         struct hostapd_data *hapd;
1044         struct hostapd_bss_config *conf;
1045
1046         if (!wpa_s->ap_iface)
1047                 return -1;
1048
1049         if (addr)
1050                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1051                            MAC2STR(addr));
1052         else
1053                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1054
1055         hapd = wpa_s->ap_iface->bss[0];
1056         conf = hapd->conf;
1057
1058         os_free(conf->accept_mac);
1059         conf->accept_mac = NULL;
1060         conf->num_accept_mac = 0;
1061         os_free(conf->deny_mac);
1062         conf->deny_mac = NULL;
1063         conf->num_deny_mac = 0;
1064
1065         if (addr == NULL) {
1066                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1067                 return 0;
1068         }
1069
1070         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1071         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1072         if (conf->accept_mac == NULL)
1073                 return -1;
1074         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1075         conf->num_accept_mac = 1;
1076
1077         return 0;
1078 }