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;
  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                 if (mode && mode->ht_capab) {
  92                         conf->ieee80211n = 1;
  93
  94                         /*
  95                          * white-list capabilities that won't cause issues
  96                          * to connecting stations, while leaving the current
  97                          * capabilities intact (currently disabled SMPS).
  98                          */
  99                         conf->ht_capab |= mode->ht_capab &
 100                                 (HT_CAP_INFO_GREEN_FIELD |
 101                                  HT_CAP_INFO_SHORT_GI20MHZ |
 102                                  HT_CAP_INFO_SHORT_GI40MHZ |
 103                                  HT_CAP_INFO_RX_STBC_MASK |
 104                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 105                 }
 106         }
 107 #endif /* CONFIG_IEEE80211N */
 108
 109 #ifdef CONFIG_P2P
 110         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 111                 /* Remove 802.11b rates from supported and basic rate sets */
 112                 int *list = os_malloc(4 * sizeof(int));
 113                 if (list) {
 114                         list[0] = 60;
 115                         list[1] = 120;
 116                         list[2] = 240;
 117                         list[3] = -1;
 118                 }
 119                 conf->basic_rates = list;
 120
 121                 list = os_malloc(9 * sizeof(int));
 122                 if (list) {
 123                         list[0] = 60;
 124                         list[1] = 90;
 125                         list[2] = 120;
 126                         list[3] = 180;
 127                         list[4] = 240;
 128                         list[5] = 360;
 129                         list[6] = 480;
 130                         list[7] = 540;
 131                         list[8] = -1;
 132                 }
 133                 conf->supported_rates = list;
 134         }
 135
 136         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 137 #endif /* CONFIG_P2P */
 138
 139         if (ssid->ssid_len == 0) {
 140                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 141                 return -1;
 142         }
 143         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 144         bss->ssid.ssid[ssid->ssid_len] = '\0';
 145         bss->ssid.ssid_len = ssid->ssid_len;
 146         bss->ssid.ssid_set = 1;
 147
 148         if (ssid->auth_alg)
 149                 bss->auth_algs = ssid->auth_alg;
 150
 151         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 152                 bss->wpa = ssid->proto;
 153         bss->wpa_key_mgmt = ssid->key_mgmt;
 154         bss->wpa_pairwise = ssid->pairwise_cipher;
 155         if (ssid->passphrase) {
 156                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 157         } else if (ssid->psk_set) {
 158                 os_free(bss->ssid.wpa_psk);
 159                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 160                 if (bss->ssid.wpa_psk == NULL)
 161                         return -1;
 162                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 163                 bss->ssid.wpa_psk->group = 1;
 164         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 165                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 166                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 167                 int i;
 168                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 169                         if (ssid->wep_key_len[i] == 0)
 170                                 continue;
 171                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 172                         if (wep->key[i] == NULL)
 173                                 return -1;
 174                         os_memcpy(wep->key[i], ssid->wep_key[i],
 175                                   ssid->wep_key_len[i]);
 176                         wep->len[i] = ssid->wep_key_len[i];
 177                 }
 178                 wep->idx = ssid->wep_tx_keyidx;
 179                 wep->keys_set = 1;
 180         }
 181
 182         /* Select group cipher based on the enabled pairwise cipher suites */
 183         pairwise = 0;
 184         if (bss->wpa & 1)
 185                 pairwise |= bss->wpa_pairwise;
 186         if (bss->wpa & 2) {
 187                 if (bss->rsn_pairwise == 0)
 188                         bss->rsn_pairwise = bss->wpa_pairwise;
 189                 pairwise |= bss->rsn_pairwise;
 190         }
 191         if (pairwise & WPA_CIPHER_TKIP)
 192                 bss->wpa_group = WPA_CIPHER_TKIP;
 193         else
 194                 bss->wpa_group = WPA_CIPHER_CCMP;
 195
 196         if (bss->wpa && bss->ieee802_1x)
 197                 bss->ssid.security_policy = SECURITY_WPA;
 198         else if (bss->wpa)
 199                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 200         else if (bss->ieee802_1x) {
 201                 int cipher = WPA_CIPHER_NONE;
 202                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 203                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 204                 if (bss->default_wep_key_len)
 205                         cipher = bss->default_wep_key_len >= 13 ?
 206                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 207                 bss->wpa_group = cipher;
 208                 bss->wpa_pairwise = cipher;
 209                 bss->rsn_pairwise = cipher;
 210         } else if (bss->ssid.wep.keys_set) {
 211                 int cipher = WPA_CIPHER_WEP40;
 212                 if (bss->ssid.wep.len[0] >= 13)
 213                         cipher = WPA_CIPHER_WEP104;
 214                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 215                 bss->wpa_group = cipher;
 216                 bss->wpa_pairwise = cipher;
 217                 bss->rsn_pairwise = cipher;
 218         } else {
 219                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 220                 bss->wpa_group = WPA_CIPHER_NONE;
 221                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 222                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 223         }
 224
 225 #ifdef CONFIG_WPS
 226         /*
 227          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 228          * require user interaction to actually use it. Only the internal
 229          * Registrar is supported.
 230          */
 231         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 232             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 233                 goto no_wps;
 234 #ifdef CONFIG_WPS2
 235         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 236             (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 237                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 238                               * configuration */
 239 #endif /* CONFIG_WPS2 */
 240         bss->eap_server = 1;
 241         bss->wps_state = 2;
 242         bss->ap_setup_locked = 2;
 243         if (wpa_s->conf->config_methods)
 244                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 245         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 246                   WPS_DEV_TYPE_LEN);
 247         if (wpa_s->conf->device_name) {
 248                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 249                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 250         }
 251         if (wpa_s->conf->manufacturer)
 252                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 253         if (wpa_s->conf->model_name)
 254                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 255         if (wpa_s->conf->model_number)
 256                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 257         if (wpa_s->conf->serial_number)
 258                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 259         if (is_nil_uuid(wpa_s->conf->uuid))
 260                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 261         else
 262                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 263         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 264 no_wps:
 265 #endif /* CONFIG_WPS */
 266
 267         if (wpa_s->max_stations &&
 268             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 269                 bss->max_num_sta = wpa_s->max_stations;
 270         else
 271                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 272
 273         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 274
 275         return 0;
 276 }
 277
 278
 279 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 280 {
 281 #ifdef CONFIG_P2P
 282         struct wpa_supplicant *wpa_s = ctx;
 283         const struct ieee80211_mgmt *mgmt;
 284         size_t hdr_len;
 285
 286         mgmt = (const struct ieee80211_mgmt *) buf;
 287         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 288         if (hdr_len > len)
 289                 return;
 290         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 291                            mgmt->u.action.category,
 292                            &mgmt->u.action.u.vs_public_action.action,
 293                            len - hdr_len, freq);
 294 #endif /* CONFIG_P2P */
 295 }
 296
 297
 298 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 299                             union wps_event_data *data)
 300 {
 301 #ifdef CONFIG_P2P
 302         struct wpa_supplicant *wpa_s = ctx;
 303
 304         if (event == WPS_EV_FAIL) {
 305                 struct wps_event_fail *fail = &data->fail;
 306
 307                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 308                     wpa_s == wpa_s->global->p2p_group_formation) {
 309                         /*
 310                          * src/ap/wps_hostapd.c has already sent this on the
 311                          * main interface, so only send on the parent interface
 312                          * here if needed.
 313                          */
 314                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 315                                 "msg=%d config_error=%d",
 316                                 fail->msg, fail->config_error);
 317                 }
 318                 wpas_p2p_wps_failed(wpa_s, fail);
 319         }
 320 #endif /* CONFIG_P2P */
 321 }
 322
 323
 324 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 325                                  int authorized, const u8 *p2p_dev_addr)
 326 {
 327         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 328 }
 329
 330
 331 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 332 {
 333 #ifdef CONFIG_P2P
 334         struct wpa_supplicant *wpa_s = ctx;
 335         const struct ieee80211_mgmt *mgmt;
 336         size_t hdr_len;
 337
 338         mgmt = (const struct ieee80211_mgmt *) buf;
 339         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 340         if (hdr_len > len)
 341                 return -1;
 342         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 343                            mgmt->u.action.category,
 344                            &mgmt->u.action.u.vs_public_action.action,
 345                            len - hdr_len, freq);
 346 #endif /* CONFIG_P2P */
 347         return 0;
 348 }
 349
 350
 351 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 352                            const u8 *bssid, const u8 *ie, size_t ie_len)
 353 {
 354 #ifdef CONFIG_P2P
 355         struct wpa_supplicant *wpa_s = ctx;
 356         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len);
 357 #else /* CONFIG_P2P */
 358         return 0;
 359 #endif /* CONFIG_P2P */
 360 }
 361
 362
 363 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 364                                   const u8 *uuid_e)
 365 {
 366 #ifdef CONFIG_P2P
 367         struct wpa_supplicant *wpa_s = ctx;
 368         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 369 #endif /* CONFIG_P2P */
 370 }
 371
 372
 373 static void wpas_ap_configured_cb(void *ctx)
 374 {
 375         struct wpa_supplicant *wpa_s = ctx;
 376
 377         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 378
 379         if (wpa_s->ap_configured_cb)
 380                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 381                                         wpa_s->ap_configured_cb_data);
 382 }
 383
 384
 385 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 386                              struct wpa_ssid *ssid)
 387 {
 388         struct wpa_driver_associate_params params;
 389         struct hostapd_iface *hapd_iface;
 390         struct hostapd_config *conf;
 391         size_t i;
 392
 393         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 394                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 395                 return -1;
 396         }
 397
 398         wpa_supplicant_ap_deinit(wpa_s);
 399
 400         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 401                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 402
 403         os_memset(&params, 0, sizeof(params));
 404         params.ssid = ssid->ssid;
 405         params.ssid_len = ssid->ssid_len;
 406         switch (ssid->mode) {
 407         case WPAS_MODE_INFRA:
 408                 params.mode = IEEE80211_MODE_INFRA;
 409                 break;
 410         case WPAS_MODE_IBSS:
 411                 params.mode = IEEE80211_MODE_IBSS;
 412                 break;
 413         case WPAS_MODE_AP:
 414         case WPAS_MODE_P2P_GO:
 415         case WPAS_MODE_P2P_GROUP_FORMATION:
 416                 params.mode = IEEE80211_MODE_AP;
 417                 break;
 418         }
 419         params.freq = ssid->frequency;
 420
 421         params.wpa_proto = ssid->proto;
 422         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 423                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 424         else
 425                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 426         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 427
 428         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 429                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 430         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 431                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 432         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 433                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 434         else {
 435                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 436                            "cipher.");
 437                 return -1;
 438         }
 439         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 440         params.group_suite = params.pairwise_suite;
 441
 442 #ifdef CONFIG_P2P
 443         if (ssid->mode == WPAS_MODE_P2P_GO ||
 444             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 445                 params.p2p = 1;
 446 #endif /* CONFIG_P2P */
 447
 448         if (wpa_s->parent->set_ap_uapsd)
 449                 params.uapsd = wpa_s->parent->ap_uapsd;
 450         else
 451                 params.uapsd = -1;
 452
 453         if (wpa_drv_associate(wpa_s, &params) < 0) {
 454                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 455                 return -1;
 456         }
 457
 458         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 459         if (hapd_iface == NULL)
 460                 return -1;
 461         hapd_iface->owner = wpa_s;
 462         hapd_iface->drv_flags = wpa_s->drv_flags;
 463         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 464
 465         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 466         if (conf == NULL) {
 467                 wpa_supplicant_ap_deinit(wpa_s);
 468                 return -1;
 469         }
 470
 471         if (params.uapsd > 0) {
 472                 conf->bss->wmm_enabled = 1;
 473                 conf->bss->wmm_uapsd = 1;
 474         }
 475
 476         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 477                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 478                 wpa_supplicant_ap_deinit(wpa_s);
 479                 return -1;
 480         }
 481
 482 #ifdef CONFIG_P2P
 483         if (ssid->mode == WPAS_MODE_P2P_GO)
 484                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 485         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 486                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 487                         P2P_GROUP_FORMATION;
 488 #endif /* CONFIG_P2P */
 489
 490         hapd_iface->num_bss = conf->num_bss;
 491         hapd_iface->bss = os_zalloc(conf->num_bss *
 492                                     sizeof(struct hostapd_data *));
 493         if (hapd_iface->bss == NULL) {
 494                 wpa_supplicant_ap_deinit(wpa_s);
 495                 return -1;
 496         }
 497
 498         for (i = 0; i < conf->num_bss; i++) {
 499                 hapd_iface->bss[i] =
 500                         hostapd_alloc_bss_data(hapd_iface, conf,
 501                                                &conf->bss[i]);
 502                 if (hapd_iface->bss[i] == NULL) {
 503                         wpa_supplicant_ap_deinit(wpa_s);
 504                         return -1;
 505                 }
 506
 507                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 508                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 509                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 510                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 511                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 512                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 513                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 514                                              ap_probe_req_rx, wpa_s);
 515                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 516                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 517                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 518                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 519                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 520                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 521 #ifdef CONFIG_P2P
 522                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 523                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
 524                         wpa_s, ssid->p2p_persistent_group,
 525                         ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
 526 #endif /* CONFIG_P2P */
 527                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 528                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 529         }
 530
 531         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 532         hapd_iface->bss[0]->driver = wpa_s->driver;
 533         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 534
 535         wpa_s->current_ssid = ssid;
 536         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 537         wpa_s->assoc_freq = ssid->frequency;
 538
 539         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 540                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 541                 wpa_supplicant_ap_deinit(wpa_s);
 542                 return -1;
 543         }
 544
 545         return 0;
 546 }
 547
 548
 549 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 550 {
 551 #ifdef CONFIG_WPS
 552         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 553 #endif /* CONFIG_WPS */
 554
 555         if (wpa_s->ap_iface == NULL)
 556                 return;
 557
 558         wpa_s->current_ssid = NULL;
 559         wpa_s->assoc_freq = 0;
 560         wpa_s->reassociated_connection = 0;
 561 #ifdef CONFIG_P2P
 562         if (wpa_s->ap_iface->bss)
 563                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 564         wpas_p2p_group_deinit(wpa_s);
 565 #endif /* CONFIG_P2P */
 566         hostapd_interface_deinit(wpa_s->ap_iface);
 567         hostapd_interface_free(wpa_s->ap_iface);
 568         wpa_s->ap_iface = NULL;
 569         wpa_drv_deinit_ap(wpa_s);
 570 }
 571
 572
 573 void ap_tx_status(void *ctx, const u8 *addr,
 574                   const u8 *buf, size_t len, int ack)
 575 {
 576 #ifdef NEED_AP_MLME
 577         struct wpa_supplicant *wpa_s = ctx;
 578         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 579 #endif /* NEED_AP_MLME */
 580 }
 581
 582
 583 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 584                         const u8 *data, size_t len, int ack)
 585 {
 586 #ifdef NEED_AP_MLME
 587         struct wpa_supplicant *wpa_s = ctx;
 588         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 589 #endif /* NEED_AP_MLME */
 590 }
 591
 592
 593 void ap_client_poll_ok(void *ctx, const u8 *addr)
 594 {
 595 #ifdef NEED_AP_MLME
 596         struct wpa_supplicant *wpa_s = ctx;
 597         if (wpa_s->ap_iface)
 598                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 599 #endif /* NEED_AP_MLME */
 600 }
 601
 602
 603 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 604 {
 605 #ifdef NEED_AP_MLME
 606         struct wpa_supplicant *wpa_s = ctx;
 607         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 608 #endif /* NEED_AP_MLME */
 609 }
 610
 611
 612 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 613 {
 614 #ifdef NEED_AP_MLME
 615         struct wpa_supplicant *wpa_s = ctx;
 616         struct hostapd_frame_info fi;
 617         os_memset(&fi, 0, sizeof(fi));
 618         fi.datarate = rx_mgmt->datarate;
 619         fi.ssi_signal = rx_mgmt->ssi_signal;
 620         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 621                         rx_mgmt->frame_len, &fi);
 622 #endif /* NEED_AP_MLME */
 623 }
 624
 625
 626 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 627 {
 628 #ifdef NEED_AP_MLME
 629         struct wpa_supplicant *wpa_s = ctx;
 630         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 631 #endif /* NEED_AP_MLME */
 632 }
 633
 634
 635 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 636                                 const u8 *src_addr, const u8 *buf, size_t len)
 637 {
 638         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 639 }
 640
 641
 642 #ifdef CONFIG_WPS
 643
 644 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 645                               const u8 *p2p_dev_addr)
 646 {
 647         if (!wpa_s->ap_iface)
 648                 return -1;
 649         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 650                                          p2p_dev_addr);
 651 }
 652
 653
 654 static int wpa_supplicant_ap_wps_sta_cancel(struct hostapd_data *hapd,
 655                                             struct sta_info *sta, void *ctx)
 656 {
 657         if (sta && (sta->flags & WLAN_STA_WPS)) {
 658                 ap_sta_deauthenticate(hapd, sta,
 659                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 660                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 661                            __func__, MAC2STR(sta->addr));
 662                 return 1;
 663         }
 664
 665         return 0;
 666 }
 667
 668
 669 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 670 {
 671         struct wps_registrar *reg;
 672         int reg_sel = 0, wps_sta = 0;
 673
 674         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 675                 return -1;
 676
 677         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 678         reg_sel = wps_registrar_wps_cancel(reg);
 679         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 680                                   wpa_supplicant_ap_wps_sta_cancel, NULL);
 681
 682         if (!reg_sel && !wps_sta) {
 683                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 684                            "time");
 685                 return -1;
 686         }
 687
 688         /*
 689          * There are 2 cases to return wps cancel as success:
 690          * 1. When wps cancel was initiated but no connection has been
 691          *    established with client yet.
 692          * 2. Client is in the middle of exchanging WPS messages.
 693          */
 694
 695         return 0;
 696 }
 697
 698
 699 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 700                               const char *pin, char *buf, size_t buflen)
 701 {
 702         int ret, ret_len = 0;
 703
 704         if (!wpa_s->ap_iface)
 705                 return -1;
 706
 707         if (pin == NULL) {
 708                 unsigned int rpin = wps_generate_pin();
 709                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 710                 pin = buf;
 711         } else
 712                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 713
 714         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 715                                   0);
 716         if (ret)
 717                 return -1;
 718         return ret_len;
 719 }
 720
 721
 722 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 723 {
 724         struct wpa_supplicant *wpa_s = eloop_data;
 725         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 726         wpas_wps_ap_pin_disable(wpa_s);
 727 }
 728
 729
 730 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 731 {
 732         struct hostapd_data *hapd;
 733
 734         if (wpa_s->ap_iface == NULL)
 735                 return;
 736         hapd = wpa_s->ap_iface->bss[0];
 737         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 738         hapd->ap_pin_failures = 0;
 739         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 740         if (timeout > 0)
 741                 eloop_register_timeout(timeout, 0,
 742                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 743 }
 744
 745
 746 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 747 {
 748         struct hostapd_data *hapd;
 749
 750         if (wpa_s->ap_iface == NULL)
 751                 return;
 752         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 753         hapd = wpa_s->ap_iface->bss[0];
 754         os_free(hapd->conf->ap_pin);
 755         hapd->conf->ap_pin = NULL;
 756         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 757 }
 758
 759
 760 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 761 {
 762         struct hostapd_data *hapd;
 763         unsigned int pin;
 764         char pin_txt[9];
 765
 766         if (wpa_s->ap_iface == NULL)
 767                 return NULL;
 768         hapd = wpa_s->ap_iface->bss[0];
 769         pin = wps_generate_pin();
 770         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 771         os_free(hapd->conf->ap_pin);
 772         hapd->conf->ap_pin = os_strdup(pin_txt);
 773         if (hapd->conf->ap_pin == NULL)
 774                 return NULL;
 775         wpas_wps_ap_pin_enable(wpa_s, timeout);
 776
 777         return hapd->conf->ap_pin;
 778 }
 779
 780
 781 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 782 {
 783         struct hostapd_data *hapd;
 784         if (wpa_s->ap_iface == NULL)
 785                 return NULL;
 786         hapd = wpa_s->ap_iface->bss[0];
 787         return hapd->conf->ap_pin;
 788 }
 789
 790
 791 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 792                         int timeout)
 793 {
 794         struct hostapd_data *hapd;
 795         char pin_txt[9];
 796         int ret;
 797
 798         if (wpa_s->ap_iface == NULL)
 799                 return -1;
 800         hapd = wpa_s->ap_iface->bss[0];
 801         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 802         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 803                 return -1;
 804         os_free(hapd->conf->ap_pin);
 805         hapd->conf->ap_pin = os_strdup(pin_txt);
 806         if (hapd->conf->ap_pin == NULL)
 807                 return -1;
 808         wpas_wps_ap_pin_enable(wpa_s, timeout);
 809
 810         return 0;
 811 }
 812
 813
 814 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 815 {
 816         struct hostapd_data *hapd;
 817
 818         if (wpa_s->ap_iface == NULL)
 819                 return;
 820         hapd = wpa_s->ap_iface->bss[0];
 821
 822         /*
 823          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 824          * PIN if this happens multiple times to slow down brute force attacks.
 825          */
 826         hapd->ap_pin_failures++;
 827         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 828                    hapd->ap_pin_failures);
 829         if (hapd->ap_pin_failures < 3)
 830                 return;
 831
 832         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 833         hapd->ap_pin_failures = 0;
 834         os_free(hapd->conf->ap_pin);
 835         hapd->conf->ap_pin = NULL;
 836 }
 837
 838 #endif /* CONFIG_WPS */
 839
 840
 841 #ifdef CONFIG_CTRL_IFACE
 842
 843 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 844                             char *buf, size_t buflen)
 845 {
 846         if (wpa_s->ap_iface == NULL)
 847                 return -1;
 848         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 849                                             buf, buflen);
 850 }
 851
 852
 853 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 854                       char *buf, size_t buflen)
 855 {
 856         if (wpa_s->ap_iface == NULL)
 857                 return -1;
 858         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 859                                       buf, buflen);
 860 }
 861
 862
 863 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 864                            char *buf, size_t buflen)
 865 {
 866         if (wpa_s->ap_iface == NULL)
 867                 return -1;
 868         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 869                                            buf, buflen);
 870 }
 871
 872
 873 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 874                                    const char *txtaddr)
 875 {
 876         if (wpa_s->ap_iface == NULL)
 877                 return -1;
 878         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 879                                                txtaddr);
 880 }
 881
 882
 883 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 884                                      const char *txtaddr)
 885 {
 886         if (wpa_s->ap_iface == NULL)
 887                 return -1;
 888         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 889                                                  txtaddr);
 890 }
 891
 892
 893 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 894                                  size_t buflen, int verbose)
 895 {
 896         char *pos = buf, *end = buf + buflen;
 897         int ret;
 898         struct hostapd_bss_config *conf;
 899
 900         if (wpa_s->ap_iface == NULL)
 901                 return -1;
 902
 903         conf = wpa_s->ap_iface->bss[0]->conf;
 904         if (conf->wpa == 0)
 905                 return 0;
 906
 907         ret = os_snprintf(pos, end - pos,
 908                           "pairwise_cipher=%s\n"
 909                           "group_cipher=%s\n"
 910                           "key_mgmt=%s\n",
 911                           wpa_cipher_txt(conf->rsn_pairwise),
 912                           wpa_cipher_txt(conf->wpa_group),
 913                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 914                                            conf->wpa));
 915         if (ret < 0 || ret >= end - pos)
 916                 return pos - buf;
 917         pos += ret;
 918         return pos - buf;
 919 }
 920
 921 #endif /* CONFIG_CTRL_IFACE */
 922
 923
 924 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 925 {
 926         struct hostapd_iface *iface = wpa_s->ap_iface;
 927         struct wpa_ssid *ssid = wpa_s->current_ssid;
 928         struct hostapd_data *hapd;
 929
 930         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 931             ssid->mode == WPAS_MODE_INFRA ||
 932             ssid->mode == WPAS_MODE_IBSS)
 933                 return -1;
 934
 935 #ifdef CONFIG_P2P
 936         if (ssid->mode == WPAS_MODE_P2P_GO)
 937                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 938         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 939                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 940                         P2P_GROUP_FORMATION;
 941 #endif /* CONFIG_P2P */
 942
 943         hapd = iface->bss[0];
 944         if (hapd->drv_priv == NULL)
 945                 return -1;
 946         ieee802_11_set_beacons(iface);
 947         hostapd_set_ap_wps_ie(hapd);
 948
 949         return 0;
 950 }
 951
 952
 953 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 954                                       const u8 *addr)
 955 {
 956         struct hostapd_data *hapd;
 957         struct hostapd_bss_config *conf;
 958
 959         if (!wpa_s->ap_iface)
 960                 return -1;
 961
 962         if (addr)
 963                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 964                            MAC2STR(addr));
 965         else
 966                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 967
 968         hapd = wpa_s->ap_iface->bss[0];
 969         conf = hapd->conf;
 970
 971         os_free(conf->accept_mac);
 972         conf->accept_mac = NULL;
 973         conf->num_accept_mac = 0;
 974         os_free(conf->deny_mac);
 975         conf->deny_mac = NULL;
 976         conf->num_deny_mac = 0;
 977
 978         if (addr == NULL) {
 979                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 980                 return 0;
 981         }
 982
 983         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 984         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 985         if (conf->accept_mac == NULL)
 986                 return -1;
 987         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 988         conf->num_accept_mac = 1;
 989
 990         return 0;
 991 }