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 #ifdef CONFIG_P2P
 509                 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION &&
 510                     wpa_s->global->p2p_group_formation == wpa_s)
 511                         wpas_p2p_group_formation_failed(wpa_s->parent);
 512 #endif /* CONFIG_P2P */
 513                 return -1;
 514         }
 515
 516         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 517         if (hapd_iface == NULL)
 518                 return -1;
 519         hapd_iface->owner = wpa_s;
 520         hapd_iface->drv_flags = wpa_s->drv_flags;
 521         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 522         hapd_iface->extended_capa = wpa_s->extended_capa;
 523         hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
 524         hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
 525
 526         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 527         if (conf == NULL) {
 528                 wpa_supplicant_ap_deinit(wpa_s);
 529                 return -1;
 530         }
 531
 532         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 533                   wpa_s->conf->wmm_ac_params,
 534                   sizeof(wpa_s->conf->wmm_ac_params));
 535
 536         if (params.uapsd > 0) {
 537                 conf->bss->wmm_enabled = 1;
 538                 conf->bss->wmm_uapsd = 1;
 539         }
 540
 541         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 542                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 543                 wpa_supplicant_ap_deinit(wpa_s);
 544                 return -1;
 545         }
 546
 547 #ifdef CONFIG_P2P
 548         if (ssid->mode == WPAS_MODE_P2P_GO)
 549                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 550         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 551                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 552                         P2P_GROUP_FORMATION;
 553 #endif /* CONFIG_P2P */
 554
 555         hapd_iface->num_bss = conf->num_bss;
 556         hapd_iface->bss = os_calloc(conf->num_bss,
 557                                     sizeof(struct hostapd_data *));
 558         if (hapd_iface->bss == NULL) {
 559                 wpa_supplicant_ap_deinit(wpa_s);
 560                 return -1;
 561         }
 562
 563         for (i = 0; i < conf->num_bss; i++) {
 564                 hapd_iface->bss[i] =
 565                         hostapd_alloc_bss_data(hapd_iface, conf,
 566                                                &conf->bss[i]);
 567                 if (hapd_iface->bss[i] == NULL) {
 568                         wpa_supplicant_ap_deinit(wpa_s);
 569                         return -1;
 570                 }
 571
 572                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 573                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 574                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 575                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 576                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 577                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 578                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 579                                              ap_probe_req_rx, wpa_s);
 580                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 581                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 582                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 583                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 584                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 585                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 586 #ifdef CONFIG_P2P
 587                 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
 588                 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
 589                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 590                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 591                                                                     ssid);
 592 #endif /* CONFIG_P2P */
 593                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 594                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 595         }
 596
 597         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 598         hapd_iface->bss[0]->driver = wpa_s->driver;
 599         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 600
 601         wpa_s->current_ssid = ssid;
 602         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 603         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 604         wpa_s->assoc_freq = ssid->frequency;
 605
 606         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 607                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 608                 wpa_supplicant_ap_deinit(wpa_s);
 609                 return -1;
 610         }
 611
 612         return 0;
 613 }
 614
 615
 616 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 617 {
 618 #ifdef CONFIG_WPS
 619         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 620 #endif /* CONFIG_WPS */
 621
 622         if (wpa_s->ap_iface == NULL)
 623                 return;
 624
 625         wpa_s->current_ssid = NULL;
 626         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 627         wpa_s->assoc_freq = 0;
 628 #ifdef CONFIG_P2P
 629         if (wpa_s->ap_iface->bss)
 630                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 631         wpas_p2p_group_deinit(wpa_s);
 632 #endif /* CONFIG_P2P */
 633         hostapd_interface_deinit(wpa_s->ap_iface);
 634         hostapd_interface_free(wpa_s->ap_iface);
 635         wpa_s->ap_iface = NULL;
 636         wpa_drv_deinit_ap(wpa_s);
 637 }
 638
 639
 640 void ap_tx_status(void *ctx, const u8 *addr,
 641                   const u8 *buf, size_t len, int ack)
 642 {
 643 #ifdef NEED_AP_MLME
 644         struct wpa_supplicant *wpa_s = ctx;
 645         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 646 #endif /* NEED_AP_MLME */
 647 }
 648
 649
 650 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 651                         const u8 *data, size_t len, int ack)
 652 {
 653 #ifdef NEED_AP_MLME
 654         struct wpa_supplicant *wpa_s = ctx;
 655         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 656 #endif /* NEED_AP_MLME */
 657 }
 658
 659
 660 void ap_client_poll_ok(void *ctx, const u8 *addr)
 661 {
 662 #ifdef NEED_AP_MLME
 663         struct wpa_supplicant *wpa_s = ctx;
 664         if (wpa_s->ap_iface)
 665                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 666 #endif /* NEED_AP_MLME */
 667 }
 668
 669
 670 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 671 {
 672 #ifdef NEED_AP_MLME
 673         struct wpa_supplicant *wpa_s = ctx;
 674         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 675 #endif /* NEED_AP_MLME */
 676 }
 677
 678
 679 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 680 {
 681 #ifdef NEED_AP_MLME
 682         struct wpa_supplicant *wpa_s = ctx;
 683         struct hostapd_frame_info fi;
 684         os_memset(&fi, 0, sizeof(fi));
 685         fi.datarate = rx_mgmt->datarate;
 686         fi.ssi_signal = rx_mgmt->ssi_signal;
 687         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 688                         rx_mgmt->frame_len, &fi);
 689 #endif /* NEED_AP_MLME */
 690 }
 691
 692
 693 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 694 {
 695 #ifdef NEED_AP_MLME
 696         struct wpa_supplicant *wpa_s = ctx;
 697         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 698 #endif /* NEED_AP_MLME */
 699 }
 700
 701
 702 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 703                                 const u8 *src_addr, const u8 *buf, size_t len)
 704 {
 705         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 706 }
 707
 708
 709 #ifdef CONFIG_WPS
 710
 711 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 712                               const u8 *p2p_dev_addr)
 713 {
 714         if (!wpa_s->ap_iface)
 715                 return -1;
 716         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 717                                          p2p_dev_addr);
 718 }
 719
 720
 721 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 722 {
 723         struct wps_registrar *reg;
 724         int reg_sel = 0, wps_sta = 0;
 725
 726         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 727                 return -1;
 728
 729         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 730         reg_sel = wps_registrar_wps_cancel(reg);
 731         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 732                                   ap_sta_wps_cancel, NULL);
 733
 734         if (!reg_sel && !wps_sta) {
 735                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 736                            "time");
 737                 return -1;
 738         }
 739
 740         /*
 741          * There are 2 cases to return wps cancel as success:
 742          * 1. When wps cancel was initiated but no connection has been
 743          *    established with client yet.
 744          * 2. Client is in the middle of exchanging WPS messages.
 745          */
 746
 747         return 0;
 748 }
 749
 750
 751 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 752                               const char *pin, char *buf, size_t buflen,
 753                               int timeout)
 754 {
 755         int ret, ret_len = 0;
 756
 757         if (!wpa_s->ap_iface)
 758                 return -1;
 759
 760         if (pin == NULL) {
 761                 unsigned int rpin = wps_generate_pin();
 762                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 763                 pin = buf;
 764         } else
 765                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 766
 767         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 768                                   timeout);
 769         if (ret)
 770                 return -1;
 771         return ret_len;
 772 }
 773
 774
 775 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 776 {
 777         struct wpa_supplicant *wpa_s = eloop_data;
 778         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 779         wpas_wps_ap_pin_disable(wpa_s);
 780 }
 781
 782
 783 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 784 {
 785         struct hostapd_data *hapd;
 786
 787         if (wpa_s->ap_iface == NULL)
 788                 return;
 789         hapd = wpa_s->ap_iface->bss[0];
 790         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 791         hapd->ap_pin_failures = 0;
 792         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 793         if (timeout > 0)
 794                 eloop_register_timeout(timeout, 0,
 795                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 796 }
 797
 798
 799 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 800 {
 801         struct hostapd_data *hapd;
 802
 803         if (wpa_s->ap_iface == NULL)
 804                 return;
 805         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 806         hapd = wpa_s->ap_iface->bss[0];
 807         os_free(hapd->conf->ap_pin);
 808         hapd->conf->ap_pin = NULL;
 809         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 810 }
 811
 812
 813 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 814 {
 815         struct hostapd_data *hapd;
 816         unsigned int pin;
 817         char pin_txt[9];
 818
 819         if (wpa_s->ap_iface == NULL)
 820                 return NULL;
 821         hapd = wpa_s->ap_iface->bss[0];
 822         pin = wps_generate_pin();
 823         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 824         os_free(hapd->conf->ap_pin);
 825         hapd->conf->ap_pin = os_strdup(pin_txt);
 826         if (hapd->conf->ap_pin == NULL)
 827                 return NULL;
 828         wpas_wps_ap_pin_enable(wpa_s, timeout);
 829
 830         return hapd->conf->ap_pin;
 831 }
 832
 833
 834 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 835 {
 836         struct hostapd_data *hapd;
 837         if (wpa_s->ap_iface == NULL)
 838                 return NULL;
 839         hapd = wpa_s->ap_iface->bss[0];
 840         return hapd->conf->ap_pin;
 841 }
 842
 843
 844 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 845                         int timeout)
 846 {
 847         struct hostapd_data *hapd;
 848         char pin_txt[9];
 849         int ret;
 850
 851         if (wpa_s->ap_iface == NULL)
 852                 return -1;
 853         hapd = wpa_s->ap_iface->bss[0];
 854         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 855         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 856                 return -1;
 857         os_free(hapd->conf->ap_pin);
 858         hapd->conf->ap_pin = os_strdup(pin_txt);
 859         if (hapd->conf->ap_pin == NULL)
 860                 return -1;
 861         wpas_wps_ap_pin_enable(wpa_s, timeout);
 862
 863         return 0;
 864 }
 865
 866
 867 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 868 {
 869         struct hostapd_data *hapd;
 870
 871         if (wpa_s->ap_iface == NULL)
 872                 return;
 873         hapd = wpa_s->ap_iface->bss[0];
 874
 875         /*
 876          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 877          * PIN if this happens multiple times to slow down brute force attacks.
 878          */
 879         hapd->ap_pin_failures++;
 880         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 881                    hapd->ap_pin_failures);
 882         if (hapd->ap_pin_failures < 3)
 883                 return;
 884
 885         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 886         hapd->ap_pin_failures = 0;
 887         os_free(hapd->conf->ap_pin);
 888         hapd->conf->ap_pin = NULL;
 889 }
 890
 891
 892 #ifdef CONFIG_WPS_NFC
 893
 894 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
 895                                              int ndef)
 896 {
 897         struct hostapd_data *hapd;
 898
 899         if (wpa_s->ap_iface == NULL)
 900                 return NULL;
 901         hapd = wpa_s->ap_iface->bss[0];
 902         return hostapd_wps_nfc_config_token(hapd, ndef);
 903 }
 904
 905
 906 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 907                                              int ndef)
 908 {
 909         struct hostapd_data *hapd;
 910
 911         if (wpa_s->ap_iface == NULL)
 912                 return NULL;
 913         hapd = wpa_s->ap_iface->bss[0];
 914         return hostapd_wps_nfc_hs_cr(hapd, ndef);
 915 }
 916
 917 #endif /* CONFIG_WPS_NFC */
 918
 919 #endif /* CONFIG_WPS */
 920
 921
 922 #ifdef CONFIG_CTRL_IFACE
 923
 924 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 925                             char *buf, size_t buflen)
 926 {
 927         if (wpa_s->ap_iface == NULL)
 928                 return -1;
 929         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 930                                             buf, buflen);
 931 }
 932
 933
 934 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 935                       char *buf, size_t buflen)
 936 {
 937         if (wpa_s->ap_iface == NULL)
 938                 return -1;
 939         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 940                                       buf, buflen);
 941 }
 942
 943
 944 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 945                            char *buf, size_t buflen)
 946 {
 947         if (wpa_s->ap_iface == NULL)
 948                 return -1;
 949         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 950                                            buf, buflen);
 951 }
 952
 953
 954 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 955                                    const char *txtaddr)
 956 {
 957         if (wpa_s->ap_iface == NULL)
 958                 return -1;
 959         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 960                                                txtaddr);
 961 }
 962
 963
 964 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 965                                      const char *txtaddr)
 966 {
 967         if (wpa_s->ap_iface == NULL)
 968                 return -1;
 969         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 970                                                  txtaddr);
 971 }
 972
 973
 974 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 975                                  size_t buflen, int verbose)
 976 {
 977         char *pos = buf, *end = buf + buflen;
 978         int ret;
 979         struct hostapd_bss_config *conf;
 980
 981         if (wpa_s->ap_iface == NULL)
 982                 return -1;
 983
 984         conf = wpa_s->ap_iface->bss[0]->conf;
 985         if (conf->wpa == 0)
 986                 return 0;
 987
 988         ret = os_snprintf(pos, end - pos,
 989                           "pairwise_cipher=%s\n"
 990                           "group_cipher=%s\n"
 991                           "key_mgmt=%s\n",
 992                           wpa_cipher_txt(conf->rsn_pairwise),
 993                           wpa_cipher_txt(conf->wpa_group),
 994                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 995                                            conf->wpa));
 996         if (ret < 0 || ret >= end - pos)
 997                 return pos - buf;
 998         pos += ret;
 999         return pos - buf;
1000 }
1001
1002 #endif /* CONFIG_CTRL_IFACE */
1003
1004
1005 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1006 {
1007         struct hostapd_iface *iface = wpa_s->ap_iface;
1008         struct wpa_ssid *ssid = wpa_s->current_ssid;
1009         struct hostapd_data *hapd;
1010
1011         if (ssid == NULL || wpa_s->ap_iface == NULL ||
1012             ssid->mode == WPAS_MODE_INFRA ||
1013             ssid->mode == WPAS_MODE_IBSS)
1014                 return -1;
1015
1016 #ifdef CONFIG_P2P
1017         if (ssid->mode == WPAS_MODE_P2P_GO)
1018                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1019         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1020                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1021                         P2P_GROUP_FORMATION;
1022 #endif /* CONFIG_P2P */
1023
1024         hapd = iface->bss[0];
1025         if (hapd->drv_priv == NULL)
1026                 return -1;
1027         ieee802_11_set_beacons(iface);
1028         hostapd_set_ap_wps_ie(hapd);
1029
1030         return 0;
1031 }
1032
1033
1034 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1035                        int offset)
1036 {
1037         if (!wpa_s->ap_iface)
1038                 return;
1039
1040         wpa_s->assoc_freq = freq;
1041         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
1042 }
1043
1044
1045 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1046                                       const u8 *addr)
1047 {
1048         struct hostapd_data *hapd;
1049         struct hostapd_bss_config *conf;
1050
1051         if (!wpa_s->ap_iface)
1052                 return -1;
1053
1054         if (addr)
1055                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1056                            MAC2STR(addr));
1057         else
1058                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1059
1060         hapd = wpa_s->ap_iface->bss[0];
1061         conf = hapd->conf;
1062
1063         os_free(conf->accept_mac);
1064         conf->accept_mac = NULL;
1065         conf->num_accept_mac = 0;
1066         os_free(conf->deny_mac);
1067         conf->deny_mac = NULL;
1068         conf->num_deny_mac = 0;
1069
1070         if (addr == NULL) {
1071                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1072                 return 0;
1073         }
1074
1075         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1076         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1077         if (conf->accept_mac == NULL)
1078                 return -1;
1079         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1080         conf->num_accept_mac = 1;
1081
1082         return 0;
1083 }