wpa_supplicant/ap.c

   1 /*
   2  * WPA Supplicant - Basic AP mode support routines
   3  * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2009, Atheros Communications
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include "utils/includes.h"
  11
  12 #include "utils/common.h"
  13 #include "utils/eloop.h"
  14 #include "utils/uuid.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/wpa_ctrl.h"
  17 #include "ap/hostapd.h"
  18 #include "ap/ap_config.h"
  19 #include "ap/ap_drv_ops.h"
  20 #ifdef NEED_AP_MLME
  21 #include "ap/ieee802_11.h"
  22 #endif /* NEED_AP_MLME */
  23 #include "ap/beacon.h"
  24 #include "ap/ieee802_1x.h"
  25 #include "ap/wps_hostapd.h"
  26 #include "ap/ctrl_iface_ap.h"
  27 #include "wps/wps.h"
  28 #include "common/ieee802_11_defs.h"
  29 #include "config_ssid.h"
  30 #include "config.h"
  31 #include "wpa_supplicant_i.h"
  32 #include "driver_i.h"
  33 #include "p2p_supplicant.h"
  34 #include "ap.h"
  35 #include "ap/sta_info.h"
  36 #include "notify.h"
  37
  38
  39 #ifdef CONFIG_WPS
  40 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  41 #endif /* CONFIG_WPS */
  42
  43
  44 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
  45                                   struct wpa_ssid *ssid,
  46                                   struct hostapd_config *conf)
  47 {
  48         struct hostapd_bss_config *bss = &conf->bss[0];
  49         int pairwise;
  50
  51         conf->driver = wpa_s->driver;
  52
  53         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  54
  55         if (ssid->frequency == 0) {
  56                 /* default channel 11 */
  57                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  58                 conf->channel = 11;
  59         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
  60                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  61                 conf->channel = (ssid->frequency - 2407) / 5;
  62         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
  63                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
  64                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
  65                 conf->channel = (ssid->frequency - 5000) / 5;
  66         } else {
  67                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  68                            ssid->frequency);
  69                 return -1;
  70         }
  71
  72         /* TODO: enable HT40 if driver supports it;
  73          * drop to 11b if driver does not support 11g */
  74
  75 #ifdef CONFIG_IEEE80211N
  76         /*
  77          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  78          * and a mask of allowed capabilities within conf->ht_capab.
  79          * Using default config settings for: conf->ht_op_mode_fixed,
  80          * conf->secondary_channel, conf->require_ht
  81          */
  82         if (wpa_s->hw.modes) {
  83                 struct hostapd_hw_modes *mode = NULL;
  84                 int i, no_ht = 0;
  85                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
  86                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
  87                                 mode = &wpa_s->hw.modes[i];
  88                                 break;
  89                         }
  90                 }
  91
  92 #ifdef CONFIG_HT_OVERRIDES
  93                 if (ssid->disable_ht) {
  94                         conf->ieee80211n = 0;
  95                         conf->ht_capab = 0;
  96                         no_ht = 1;
  97                 }
  98 #endif /* CONFIG_HT_OVERRIDES */
  99
 100                 if (!no_ht && mode && mode->ht_capab) {
 101                         conf->ieee80211n = 1;
 102
 103                         /*
 104                          * white-list capabilities that won't cause issues
 105                          * to connecting stations, while leaving the current
 106                          * capabilities intact (currently disabled SMPS).
 107                          */
 108                         conf->ht_capab |= mode->ht_capab &
 109                                 (HT_CAP_INFO_GREEN_FIELD |
 110                                  HT_CAP_INFO_SHORT_GI20MHZ |
 111                                  HT_CAP_INFO_SHORT_GI40MHZ |
 112                                  HT_CAP_INFO_RX_STBC_MASK |
 113                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 114                 }
 115         }
 116 #endif /* CONFIG_IEEE80211N */
 117
 118 #ifdef CONFIG_P2P
 119         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 120                 /* Remove 802.11b rates from supported and basic rate sets */
 121                 int *list = os_malloc(4 * sizeof(int));
 122                 if (list) {
 123                         list[0] = 60;
 124                         list[1] = 120;
 125                         list[2] = 240;
 126                         list[3] = -1;
 127                 }
 128                 conf->basic_rates = list;
 129
 130                 list = os_malloc(9 * sizeof(int));
 131                 if (list) {
 132                         list[0] = 60;
 133                         list[1] = 90;
 134                         list[2] = 120;
 135                         list[3] = 180;
 136                         list[4] = 240;
 137                         list[5] = 360;
 138                         list[6] = 480;
 139                         list[7] = 540;
 140                         list[8] = -1;
 141                 }
 142                 conf->supported_rates = list;
 143         }
 144
 145         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 146 #endif /* CONFIG_P2P */
 147
 148         if (ssid->ssid_len == 0) {
 149                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 150                 return -1;
 151         }
 152         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 153         bss->ssid.ssid[ssid->ssid_len] = '\0';
 154         bss->ssid.ssid_len = ssid->ssid_len;
 155         bss->ssid.ssid_set = 1;
 156
 157         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 158
 159         if (ssid->auth_alg)
 160                 bss->auth_algs = ssid->auth_alg;
 161
 162         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 163                 bss->wpa = ssid->proto;
 164         bss->wpa_key_mgmt = ssid->key_mgmt;
 165         bss->wpa_pairwise = ssid->pairwise_cipher;
 166         if (ssid->passphrase) {
 167                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 168         } else if (ssid->psk_set) {
 169                 os_free(bss->ssid.wpa_psk);
 170                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 171                 if (bss->ssid.wpa_psk == NULL)
 172                         return -1;
 173                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 174                 bss->ssid.wpa_psk->group = 1;
 175         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 176                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 177                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 178                 int i;
 179                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 180                         if (ssid->wep_key_len[i] == 0)
 181                                 continue;
 182                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 183                         if (wep->key[i] == NULL)
 184                                 return -1;
 185                         os_memcpy(wep->key[i], ssid->wep_key[i],
 186                                   ssid->wep_key_len[i]);
 187                         wep->len[i] = ssid->wep_key_len[i];
 188                 }
 189                 wep->idx = ssid->wep_tx_keyidx;
 190                 wep->keys_set = 1;
 191         }
 192
 193         if (ssid->ap_max_inactivity)
 194                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 195
 196         if (ssid->dtim_period)
 197                 bss->dtim_period = ssid->dtim_period;
 198
 199         /* Select group cipher based on the enabled pairwise cipher suites */
 200         pairwise = 0;
 201         if (bss->wpa & 1)
 202                 pairwise |= bss->wpa_pairwise;
 203         if (bss->wpa & 2) {
 204                 if (bss->rsn_pairwise == 0)
 205                         bss->rsn_pairwise = bss->wpa_pairwise;
 206                 pairwise |= bss->rsn_pairwise;
 207         }
 208         if (pairwise & WPA_CIPHER_TKIP)
 209                 bss->wpa_group = WPA_CIPHER_TKIP;
 210         else
 211                 bss->wpa_group = WPA_CIPHER_CCMP;
 212
 213         if (bss->wpa && bss->ieee802_1x)
 214                 bss->ssid.security_policy = SECURITY_WPA;
 215         else if (bss->wpa)
 216                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 217         else if (bss->ieee802_1x) {
 218                 int cipher = WPA_CIPHER_NONE;
 219                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 220                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 221                 if (bss->default_wep_key_len)
 222                         cipher = bss->default_wep_key_len >= 13 ?
 223                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 224                 bss->wpa_group = cipher;
 225                 bss->wpa_pairwise = cipher;
 226                 bss->rsn_pairwise = cipher;
 227         } else if (bss->ssid.wep.keys_set) {
 228                 int cipher = WPA_CIPHER_WEP40;
 229                 if (bss->ssid.wep.len[0] >= 13)
 230                         cipher = WPA_CIPHER_WEP104;
 231                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 232                 bss->wpa_group = cipher;
 233                 bss->wpa_pairwise = cipher;
 234                 bss->rsn_pairwise = cipher;
 235         } else {
 236                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 237                 bss->wpa_group = WPA_CIPHER_NONE;
 238                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 239                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 240         }
 241
 242 #ifdef CONFIG_WPS
 243         /*
 244          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 245          * require user interaction to actually use it. Only the internal
 246          * Registrar is supported.
 247          */
 248         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 249             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 250                 goto no_wps;
 251 #ifdef CONFIG_WPS2
 252         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 253             (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 254                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 255                               * configuration */
 256 #endif /* CONFIG_WPS2 */
 257         bss->eap_server = 1;
 258
 259         if (!ssid->ignore_broadcast_ssid)
 260                 bss->wps_state = 2;
 261
 262         bss->ap_setup_locked = 2;
 263         if (wpa_s->conf->config_methods)
 264                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 265         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 266                   WPS_DEV_TYPE_LEN);
 267         if (wpa_s->conf->device_name) {
 268                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 269                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 270         }
 271         if (wpa_s->conf->manufacturer)
 272                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 273         if (wpa_s->conf->model_name)
 274                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 275         if (wpa_s->conf->model_number)
 276                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 277         if (wpa_s->conf->serial_number)
 278                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 279         if (is_nil_uuid(wpa_s->conf->uuid))
 280                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 281         else
 282                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 283         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 284         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 285 no_wps:
 286 #endif /* CONFIG_WPS */
 287
 288         if (wpa_s->max_stations &&
 289             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 290                 bss->max_num_sta = wpa_s->max_stations;
 291         else
 292                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 293
 294         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 295
 296         return 0;
 297 }
 298
 299
 300 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 301 {
 302 #ifdef CONFIG_P2P
 303         struct wpa_supplicant *wpa_s = ctx;
 304         const struct ieee80211_mgmt *mgmt;
 305         size_t hdr_len;
 306
 307         mgmt = (const struct ieee80211_mgmt *) buf;
 308         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 309         if (hdr_len > len)
 310                 return;
 311         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 312                            mgmt->u.action.category,
 313                            &mgmt->u.action.u.vs_public_action.action,
 314                            len - hdr_len, freq);
 315 #endif /* CONFIG_P2P */
 316 }
 317
 318
 319 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 320                             union wps_event_data *data)
 321 {
 322 #ifdef CONFIG_P2P
 323         struct wpa_supplicant *wpa_s = ctx;
 324
 325         if (event == WPS_EV_FAIL) {
 326                 struct wps_event_fail *fail = &data->fail;
 327
 328                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 329                     wpa_s == wpa_s->global->p2p_group_formation) {
 330                         /*
 331                          * src/ap/wps_hostapd.c has already sent this on the
 332                          * main interface, so only send on the parent interface
 333                          * here if needed.
 334                          */
 335                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 336                                 "msg=%d config_error=%d",
 337                                 fail->msg, fail->config_error);
 338                 }
 339                 wpas_p2p_wps_failed(wpa_s, fail);
 340         }
 341 #endif /* CONFIG_P2P */
 342 }
 343
 344
 345 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 346                                  int authorized, const u8 *p2p_dev_addr)
 347 {
 348         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 349 }
 350
 351
 352 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 353 {
 354 #ifdef CONFIG_P2P
 355         struct wpa_supplicant *wpa_s = ctx;
 356         const struct ieee80211_mgmt *mgmt;
 357         size_t hdr_len;
 358
 359         mgmt = (const struct ieee80211_mgmt *) buf;
 360         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 361         if (hdr_len > len)
 362                 return -1;
 363         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 364                            mgmt->u.action.category,
 365                            &mgmt->u.action.u.vs_public_action.action,
 366                            len - hdr_len, freq);
 367 #endif /* CONFIG_P2P */
 368         return 0;
 369 }
 370
 371
 372 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 373                            const u8 *bssid, const u8 *ie, size_t ie_len,
 374                            int ssi_signal)
 375 {
 376 #ifdef CONFIG_P2P
 377         struct wpa_supplicant *wpa_s = ctx;
 378         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 379                                      ssi_signal);
 380 #else /* CONFIG_P2P */
 381         return 0;
 382 #endif /* CONFIG_P2P */
 383 }
 384
 385
 386 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 387                                   const u8 *uuid_e)
 388 {
 389 #ifdef CONFIG_P2P
 390         struct wpa_supplicant *wpa_s = ctx;
 391         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 392 #endif /* CONFIG_P2P */
 393 }
 394
 395
 396 static void wpas_ap_configured_cb(void *ctx)
 397 {
 398         struct wpa_supplicant *wpa_s = ctx;
 399
 400         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 401
 402         if (wpa_s->ap_configured_cb)
 403                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 404                                         wpa_s->ap_configured_cb_data);
 405 }
 406
 407
 408 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 409                              struct wpa_ssid *ssid)
 410 {
 411         struct wpa_driver_associate_params params;
 412         struct hostapd_iface *hapd_iface;
 413         struct hostapd_config *conf;
 414         size_t i;
 415
 416         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 417                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 418                 return -1;
 419         }
 420
 421         wpa_supplicant_ap_deinit(wpa_s);
 422
 423         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 424                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 425
 426         os_memset(&params, 0, sizeof(params));
 427         params.ssid = ssid->ssid;
 428         params.ssid_len = ssid->ssid_len;
 429         switch (ssid->mode) {
 430         case WPAS_MODE_INFRA:
 431                 params.mode = IEEE80211_MODE_INFRA;
 432                 break;
 433         case WPAS_MODE_IBSS:
 434                 params.mode = IEEE80211_MODE_IBSS;
 435                 break;
 436         case WPAS_MODE_AP:
 437         case WPAS_MODE_P2P_GO:
 438         case WPAS_MODE_P2P_GROUP_FORMATION:
 439                 params.mode = IEEE80211_MODE_AP;
 440                 break;
 441         }
 442         params.freq = ssid->frequency;
 443
 444         params.wpa_proto = ssid->proto;
 445         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 446                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 447         else
 448                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 449         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 450
 451         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 452                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 453         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 454                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 455         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 456                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 457         else {
 458                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 459                            "cipher.");
 460                 return -1;
 461         }
 462         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 463         params.group_suite = params.pairwise_suite;
 464
 465 #ifdef CONFIG_P2P
 466         if (ssid->mode == WPAS_MODE_P2P_GO ||
 467             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 468                 params.p2p = 1;
 469 #endif /* CONFIG_P2P */
 470
 471         if (wpa_s->parent->set_ap_uapsd)
 472                 params.uapsd = wpa_s->parent->ap_uapsd;
 473         else
 474                 params.uapsd = -1;
 475
 476         if (wpa_drv_associate(wpa_s, &params) < 0) {
 477                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 478                 return -1;
 479         }
 480
 481         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 482         if (hapd_iface == NULL)
 483                 return -1;
 484         hapd_iface->owner = wpa_s;
 485         hapd_iface->drv_flags = wpa_s->drv_flags;
 486         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 487
 488         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 489         if (conf == NULL) {
 490                 wpa_supplicant_ap_deinit(wpa_s);
 491                 return -1;
 492         }
 493
 494         if (params.uapsd > 0) {
 495                 conf->bss->wmm_enabled = 1;
 496                 conf->bss->wmm_uapsd = 1;
 497         }
 498
 499         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 500                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 501                 wpa_supplicant_ap_deinit(wpa_s);
 502                 return -1;
 503         }
 504
 505 #ifdef CONFIG_P2P
 506         if (ssid->mode == WPAS_MODE_P2P_GO)
 507                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 508         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 509                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 510                         P2P_GROUP_FORMATION;
 511 #endif /* CONFIG_P2P */
 512
 513         hapd_iface->num_bss = conf->num_bss;
 514         hapd_iface->bss = os_zalloc(conf->num_bss *
 515                                     sizeof(struct hostapd_data *));
 516         if (hapd_iface->bss == NULL) {
 517                 wpa_supplicant_ap_deinit(wpa_s);
 518                 return -1;
 519         }
 520
 521         for (i = 0; i < conf->num_bss; i++) {
 522                 hapd_iface->bss[i] =
 523                         hostapd_alloc_bss_data(hapd_iface, conf,
 524                                                &conf->bss[i]);
 525                 if (hapd_iface->bss[i] == NULL) {
 526                         wpa_supplicant_ap_deinit(wpa_s);
 527                         return -1;
 528                 }
 529
 530                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 531                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 532                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 533                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 534                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 535                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 536                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 537                                              ap_probe_req_rx, wpa_s);
 538                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 539                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 540                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 541                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 542                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 543                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 544 #ifdef CONFIG_P2P
 545                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 546                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 547                                                                     ssid);
 548 #endif /* CONFIG_P2P */
 549                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 550                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 551         }
 552
 553         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 554         hapd_iface->bss[0]->driver = wpa_s->driver;
 555         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 556
 557         wpa_s->current_ssid = ssid;
 558         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 559         wpa_s->assoc_freq = ssid->frequency;
 560
 561         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 562                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 563                 wpa_supplicant_ap_deinit(wpa_s);
 564                 return -1;
 565         }
 566
 567         return 0;
 568 }
 569
 570
 571 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 572 {
 573 #ifdef CONFIG_WPS
 574         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 575 #endif /* CONFIG_WPS */
 576
 577         if (wpa_s->ap_iface == NULL)
 578                 return;
 579
 580         wpa_s->current_ssid = NULL;
 581         wpa_s->assoc_freq = 0;
 582         wpa_s->reassociated_connection = 0;
 583 #ifdef CONFIG_P2P
 584         if (wpa_s->ap_iface->bss)
 585                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 586         wpas_p2p_group_deinit(wpa_s);
 587 #endif /* CONFIG_P2P */
 588         hostapd_interface_deinit(wpa_s->ap_iface);
 589         hostapd_interface_free(wpa_s->ap_iface);
 590         wpa_s->ap_iface = NULL;
 591         wpa_drv_deinit_ap(wpa_s);
 592 }
 593
 594
 595 void ap_tx_status(void *ctx, const u8 *addr,
 596                   const u8 *buf, size_t len, int ack)
 597 {
 598 #ifdef NEED_AP_MLME
 599         struct wpa_supplicant *wpa_s = ctx;
 600         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 601 #endif /* NEED_AP_MLME */
 602 }
 603
 604
 605 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 606                         const u8 *data, size_t len, int ack)
 607 {
 608 #ifdef NEED_AP_MLME
 609         struct wpa_supplicant *wpa_s = ctx;
 610         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 611 #endif /* NEED_AP_MLME */
 612 }
 613
 614
 615 void ap_client_poll_ok(void *ctx, const u8 *addr)
 616 {
 617 #ifdef NEED_AP_MLME
 618         struct wpa_supplicant *wpa_s = ctx;
 619         if (wpa_s->ap_iface)
 620                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 621 #endif /* NEED_AP_MLME */
 622 }
 623
 624
 625 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 626 {
 627 #ifdef NEED_AP_MLME
 628         struct wpa_supplicant *wpa_s = ctx;
 629         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 630 #endif /* NEED_AP_MLME */
 631 }
 632
 633
 634 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 635 {
 636 #ifdef NEED_AP_MLME
 637         struct wpa_supplicant *wpa_s = ctx;
 638         struct hostapd_frame_info fi;
 639         os_memset(&fi, 0, sizeof(fi));
 640         fi.datarate = rx_mgmt->datarate;
 641         fi.ssi_signal = rx_mgmt->ssi_signal;
 642         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 643                         rx_mgmt->frame_len, &fi);
 644 #endif /* NEED_AP_MLME */
 645 }
 646
 647
 648 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 649 {
 650 #ifdef NEED_AP_MLME
 651         struct wpa_supplicant *wpa_s = ctx;
 652         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 653 #endif /* NEED_AP_MLME */
 654 }
 655
 656
 657 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 658                                 const u8 *src_addr, const u8 *buf, size_t len)
 659 {
 660         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 661 }
 662
 663
 664 #ifdef CONFIG_WPS
 665
 666 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 667                               const u8 *p2p_dev_addr)
 668 {
 669         if (!wpa_s->ap_iface)
 670                 return -1;
 671         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 672                                          p2p_dev_addr);
 673 }
 674
 675
 676 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 677 {
 678         struct wps_registrar *reg;
 679         int reg_sel = 0, wps_sta = 0;
 680
 681         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 682                 return -1;
 683
 684         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 685         reg_sel = wps_registrar_wps_cancel(reg);
 686         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 687                                   ap_sta_wps_cancel, NULL);
 688
 689         if (!reg_sel && !wps_sta) {
 690                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 691                            "time");
 692                 return -1;
 693         }
 694
 695         /*
 696          * There are 2 cases to return wps cancel as success:
 697          * 1. When wps cancel was initiated but no connection has been
 698          *    established with client yet.
 699          * 2. Client is in the middle of exchanging WPS messages.
 700          */
 701
 702         return 0;
 703 }
 704
 705
 706 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 707                               const char *pin, char *buf, size_t buflen)
 708 {
 709         int ret, ret_len = 0;
 710
 711         if (!wpa_s->ap_iface)
 712                 return -1;
 713
 714         if (pin == NULL) {
 715                 unsigned int rpin = wps_generate_pin();
 716                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 717                 pin = buf;
 718         } else
 719                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 720
 721         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 722                                   0);
 723         if (ret)
 724                 return -1;
 725         return ret_len;
 726 }
 727
 728
 729 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 730 {
 731         struct wpa_supplicant *wpa_s = eloop_data;
 732         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 733         wpas_wps_ap_pin_disable(wpa_s);
 734 }
 735
 736
 737 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 738 {
 739         struct hostapd_data *hapd;
 740
 741         if (wpa_s->ap_iface == NULL)
 742                 return;
 743         hapd = wpa_s->ap_iface->bss[0];
 744         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 745         hapd->ap_pin_failures = 0;
 746         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 747         if (timeout > 0)
 748                 eloop_register_timeout(timeout, 0,
 749                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 750 }
 751
 752
 753 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 754 {
 755         struct hostapd_data *hapd;
 756
 757         if (wpa_s->ap_iface == NULL)
 758                 return;
 759         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 760         hapd = wpa_s->ap_iface->bss[0];
 761         os_free(hapd->conf->ap_pin);
 762         hapd->conf->ap_pin = NULL;
 763         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 764 }
 765
 766
 767 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 768 {
 769         struct hostapd_data *hapd;
 770         unsigned int pin;
 771         char pin_txt[9];
 772
 773         if (wpa_s->ap_iface == NULL)
 774                 return NULL;
 775         hapd = wpa_s->ap_iface->bss[0];
 776         pin = wps_generate_pin();
 777         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 778         os_free(hapd->conf->ap_pin);
 779         hapd->conf->ap_pin = os_strdup(pin_txt);
 780         if (hapd->conf->ap_pin == NULL)
 781                 return NULL;
 782         wpas_wps_ap_pin_enable(wpa_s, timeout);
 783
 784         return hapd->conf->ap_pin;
 785 }
 786
 787
 788 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 789 {
 790         struct hostapd_data *hapd;
 791         if (wpa_s->ap_iface == NULL)
 792                 return NULL;
 793         hapd = wpa_s->ap_iface->bss[0];
 794         return hapd->conf->ap_pin;
 795 }
 796
 797
 798 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 799                         int timeout)
 800 {
 801         struct hostapd_data *hapd;
 802         char pin_txt[9];
 803         int ret;
 804
 805         if (wpa_s->ap_iface == NULL)
 806                 return -1;
 807         hapd = wpa_s->ap_iface->bss[0];
 808         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 809         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 810                 return -1;
 811         os_free(hapd->conf->ap_pin);
 812         hapd->conf->ap_pin = os_strdup(pin_txt);
 813         if (hapd->conf->ap_pin == NULL)
 814                 return -1;
 815         wpas_wps_ap_pin_enable(wpa_s, timeout);
 816
 817         return 0;
 818 }
 819
 820
 821 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 822 {
 823         struct hostapd_data *hapd;
 824
 825         if (wpa_s->ap_iface == NULL)
 826                 return;
 827         hapd = wpa_s->ap_iface->bss[0];
 828
 829         /*
 830          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 831          * PIN if this happens multiple times to slow down brute force attacks.
 832          */
 833         hapd->ap_pin_failures++;
 834         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 835                    hapd->ap_pin_failures);
 836         if (hapd->ap_pin_failures < 3)
 837                 return;
 838
 839         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 840         hapd->ap_pin_failures = 0;
 841         os_free(hapd->conf->ap_pin);
 842         hapd->conf->ap_pin = NULL;
 843 }
 844
 845 #endif /* CONFIG_WPS */
 846
 847
 848 #ifdef CONFIG_CTRL_IFACE
 849
 850 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 851                             char *buf, size_t buflen)
 852 {
 853         if (wpa_s->ap_iface == NULL)
 854                 return -1;
 855         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 856                                             buf, buflen);
 857 }
 858
 859
 860 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 861                       char *buf, size_t buflen)
 862 {
 863         if (wpa_s->ap_iface == NULL)
 864                 return -1;
 865         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 866                                       buf, buflen);
 867 }
 868
 869
 870 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 871                            char *buf, size_t buflen)
 872 {
 873         if (wpa_s->ap_iface == NULL)
 874                 return -1;
 875         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 876                                            buf, buflen);
 877 }
 878
 879
 880 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 881                                    const char *txtaddr)
 882 {
 883         if (wpa_s->ap_iface == NULL)
 884                 return -1;
 885         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 886                                                txtaddr);
 887 }
 888
 889
 890 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 891                                      const char *txtaddr)
 892 {
 893         if (wpa_s->ap_iface == NULL)
 894                 return -1;
 895         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 896                                                  txtaddr);
 897 }
 898
 899
 900 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 901                                  size_t buflen, int verbose)
 902 {
 903         char *pos = buf, *end = buf + buflen;
 904         int ret;
 905         struct hostapd_bss_config *conf;
 906
 907         if (wpa_s->ap_iface == NULL)
 908                 return -1;
 909
 910         conf = wpa_s->ap_iface->bss[0]->conf;
 911         if (conf->wpa == 0)
 912                 return 0;
 913
 914         ret = os_snprintf(pos, end - pos,
 915                           "pairwise_cipher=%s\n"
 916                           "group_cipher=%s\n"
 917                           "key_mgmt=%s\n",
 918                           wpa_cipher_txt(conf->rsn_pairwise),
 919                           wpa_cipher_txt(conf->wpa_group),
 920                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 921                                            conf->wpa));
 922         if (ret < 0 || ret >= end - pos)
 923                 return pos - buf;
 924         pos += ret;
 925         return pos - buf;
 926 }
 927
 928 #endif /* CONFIG_CTRL_IFACE */
 929
 930
 931 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 932 {
 933         struct hostapd_iface *iface = wpa_s->ap_iface;
 934         struct wpa_ssid *ssid = wpa_s->current_ssid;
 935         struct hostapd_data *hapd;
 936
 937         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 938             ssid->mode == WPAS_MODE_INFRA ||
 939             ssid->mode == WPAS_MODE_IBSS)
 940                 return -1;
 941
 942 #ifdef CONFIG_P2P
 943         if (ssid->mode == WPAS_MODE_P2P_GO)
 944                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 945         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 946                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 947                         P2P_GROUP_FORMATION;
 948 #endif /* CONFIG_P2P */
 949
 950         hapd = iface->bss[0];
 951         if (hapd->drv_priv == NULL)
 952                 return -1;
 953         ieee802_11_set_beacons(iface);
 954         hostapd_set_ap_wps_ie(hapd);
 955
 956         return 0;
 957 }
 958
 959
 960 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
 961                        int offset)
 962 {
 963         if (!wpa_s->ap_iface)
 964                 return;
 965
 966         wpa_s->assoc_freq = freq;
 967         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
 968 }
 969
 970
 971 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 972                                       const u8 *addr)
 973 {
 974         struct hostapd_data *hapd;
 975         struct hostapd_bss_config *conf;
 976
 977         if (!wpa_s->ap_iface)
 978                 return -1;
 979
 980         if (addr)
 981                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 982                            MAC2STR(addr));
 983         else
 984                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 985
 986         hapd = wpa_s->ap_iface->bss[0];
 987         conf = hapd->conf;
 988
 989         os_free(conf->accept_mac);
 990         conf->accept_mac = NULL;
 991         conf->num_accept_mac = 0;
 992         os_free(conf->deny_mac);
 993         conf->deny_mac = NULL;
 994         conf->num_deny_mac = 0;
 995
 996         if (addr == NULL) {
 997                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 998                 return 0;
 999         }
1000
1001         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1002         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1003         if (conf->accept_mac == NULL)
1004                 return -1;
1005         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1006         conf->num_accept_mac = 1;
1007
1008         return 0;
1009 }