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         /* Select group cipher based on the enabled pairwise cipher suites */
 197         pairwise = 0;
 198         if (bss->wpa & 1)
 199                 pairwise |= bss->wpa_pairwise;
 200         if (bss->wpa & 2) {
 201                 if (bss->rsn_pairwise == 0)
 202                         bss->rsn_pairwise = bss->wpa_pairwise;
 203                 pairwise |= bss->rsn_pairwise;
 204         }
 205         if (pairwise & WPA_CIPHER_TKIP)
 206                 bss->wpa_group = WPA_CIPHER_TKIP;
 207         else
 208                 bss->wpa_group = WPA_CIPHER_CCMP;
 209
 210         if (bss->wpa && bss->ieee802_1x)
 211                 bss->ssid.security_policy = SECURITY_WPA;
 212         else if (bss->wpa)
 213                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 214         else if (bss->ieee802_1x) {
 215                 int cipher = WPA_CIPHER_NONE;
 216                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 217                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 218                 if (bss->default_wep_key_len)
 219                         cipher = bss->default_wep_key_len >= 13 ?
 220                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 221                 bss->wpa_group = cipher;
 222                 bss->wpa_pairwise = cipher;
 223                 bss->rsn_pairwise = cipher;
 224         } else if (bss->ssid.wep.keys_set) {
 225                 int cipher = WPA_CIPHER_WEP40;
 226                 if (bss->ssid.wep.len[0] >= 13)
 227                         cipher = WPA_CIPHER_WEP104;
 228                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 229                 bss->wpa_group = cipher;
 230                 bss->wpa_pairwise = cipher;
 231                 bss->rsn_pairwise = cipher;
 232         } else {
 233                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 234                 bss->wpa_group = WPA_CIPHER_NONE;
 235                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 236                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 237         }
 238
 239 #ifdef CONFIG_WPS
 240         /*
 241          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 242          * require user interaction to actually use it. Only the internal
 243          * Registrar is supported.
 244          */
 245         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 246             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 247                 goto no_wps;
 248 #ifdef CONFIG_WPS2
 249         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 250             (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 251                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 252                               * configuration */
 253 #endif /* CONFIG_WPS2 */
 254         bss->eap_server = 1;
 255
 256         if (!ssid->ignore_broadcast_ssid)
 257                 bss->wps_state = 2;
 258
 259         bss->ap_setup_locked = 2;
 260         if (wpa_s->conf->config_methods)
 261                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 262         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 263                   WPS_DEV_TYPE_LEN);
 264         if (wpa_s->conf->device_name) {
 265                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 266                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 267         }
 268         if (wpa_s->conf->manufacturer)
 269                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 270         if (wpa_s->conf->model_name)
 271                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 272         if (wpa_s->conf->model_number)
 273                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 274         if (wpa_s->conf->serial_number)
 275                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 276         if (is_nil_uuid(wpa_s->conf->uuid))
 277                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 278         else
 279                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 280         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 281         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 282 no_wps:
 283 #endif /* CONFIG_WPS */
 284
 285         if (wpa_s->max_stations &&
 286             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 287                 bss->max_num_sta = wpa_s->max_stations;
 288         else
 289                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 290
 291         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 292
 293         return 0;
 294 }
 295
 296
 297 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 298 {
 299 #ifdef CONFIG_P2P
 300         struct wpa_supplicant *wpa_s = ctx;
 301         const struct ieee80211_mgmt *mgmt;
 302         size_t hdr_len;
 303
 304         mgmt = (const struct ieee80211_mgmt *) buf;
 305         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 306         if (hdr_len > len)
 307                 return;
 308         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 309                            mgmt->u.action.category,
 310                            &mgmt->u.action.u.vs_public_action.action,
 311                            len - hdr_len, freq);
 312 #endif /* CONFIG_P2P */
 313 }
 314
 315
 316 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 317                             union wps_event_data *data)
 318 {
 319 #ifdef CONFIG_P2P
 320         struct wpa_supplicant *wpa_s = ctx;
 321
 322         if (event == WPS_EV_FAIL) {
 323                 struct wps_event_fail *fail = &data->fail;
 324
 325                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 326                     wpa_s == wpa_s->global->p2p_group_formation) {
 327                         /*
 328                          * src/ap/wps_hostapd.c has already sent this on the
 329                          * main interface, so only send on the parent interface
 330                          * here if needed.
 331                          */
 332                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 333                                 "msg=%d config_error=%d",
 334                                 fail->msg, fail->config_error);
 335                 }
 336                 wpas_p2p_wps_failed(wpa_s, fail);
 337         }
 338 #endif /* CONFIG_P2P */
 339 }
 340
 341
 342 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 343                                  int authorized, const u8 *p2p_dev_addr)
 344 {
 345         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 346 }
 347
 348
 349 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 350 {
 351 #ifdef CONFIG_P2P
 352         struct wpa_supplicant *wpa_s = ctx;
 353         const struct ieee80211_mgmt *mgmt;
 354         size_t hdr_len;
 355
 356         mgmt = (const struct ieee80211_mgmt *) buf;
 357         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 358         if (hdr_len > len)
 359                 return -1;
 360         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 361                            mgmt->u.action.category,
 362                            &mgmt->u.action.u.vs_public_action.action,
 363                            len - hdr_len, freq);
 364 #endif /* CONFIG_P2P */
 365         return 0;
 366 }
 367
 368
 369 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 370                            const u8 *bssid, const u8 *ie, size_t ie_len,
 371                            int ssi_signal)
 372 {
 373 #ifdef CONFIG_P2P
 374         struct wpa_supplicant *wpa_s = ctx;
 375         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 376                                      ssi_signal);
 377 #else /* CONFIG_P2P */
 378         return 0;
 379 #endif /* CONFIG_P2P */
 380 }
 381
 382
 383 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 384                                   const u8 *uuid_e)
 385 {
 386 #ifdef CONFIG_P2P
 387         struct wpa_supplicant *wpa_s = ctx;
 388         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 389 #endif /* CONFIG_P2P */
 390 }
 391
 392
 393 static void wpas_ap_configured_cb(void *ctx)
 394 {
 395         struct wpa_supplicant *wpa_s = ctx;
 396
 397         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 398
 399         if (wpa_s->ap_configured_cb)
 400                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 401                                         wpa_s->ap_configured_cb_data);
 402 }
 403
 404
 405 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 406                              struct wpa_ssid *ssid)
 407 {
 408         struct wpa_driver_associate_params params;
 409         struct hostapd_iface *hapd_iface;
 410         struct hostapd_config *conf;
 411         size_t i;
 412
 413         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 414                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 415                 return -1;
 416         }
 417
 418         wpa_supplicant_ap_deinit(wpa_s);
 419
 420         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 421                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 422
 423         os_memset(&params, 0, sizeof(params));
 424         params.ssid = ssid->ssid;
 425         params.ssid_len = ssid->ssid_len;
 426         switch (ssid->mode) {
 427         case WPAS_MODE_INFRA:
 428                 params.mode = IEEE80211_MODE_INFRA;
 429                 break;
 430         case WPAS_MODE_IBSS:
 431                 params.mode = IEEE80211_MODE_IBSS;
 432                 break;
 433         case WPAS_MODE_AP:
 434         case WPAS_MODE_P2P_GO:
 435         case WPAS_MODE_P2P_GROUP_FORMATION:
 436                 params.mode = IEEE80211_MODE_AP;
 437                 break;
 438         }
 439         params.freq = ssid->frequency;
 440
 441         params.wpa_proto = ssid->proto;
 442         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 443                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 444         else
 445                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 446         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 447
 448         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 449                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 450         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 451                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 452         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 453                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 454         else {
 455                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 456                            "cipher.");
 457                 return -1;
 458         }
 459         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 460         params.group_suite = params.pairwise_suite;
 461
 462 #ifdef CONFIG_P2P
 463         if (ssid->mode == WPAS_MODE_P2P_GO ||
 464             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 465                 params.p2p = 1;
 466 #endif /* CONFIG_P2P */
 467
 468         if (wpa_s->parent->set_ap_uapsd)
 469                 params.uapsd = wpa_s->parent->ap_uapsd;
 470         else
 471                 params.uapsd = -1;
 472
 473         if (wpa_drv_associate(wpa_s, &params) < 0) {
 474                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 475                 return -1;
 476         }
 477
 478         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 479         if (hapd_iface == NULL)
 480                 return -1;
 481         hapd_iface->owner = wpa_s;
 482         hapd_iface->drv_flags = wpa_s->drv_flags;
 483         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 484
 485         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 486         if (conf == NULL) {
 487                 wpa_supplicant_ap_deinit(wpa_s);
 488                 return -1;
 489         }
 490
 491         if (params.uapsd > 0) {
 492                 conf->bss->wmm_enabled = 1;
 493                 conf->bss->wmm_uapsd = 1;
 494         }
 495
 496         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 497                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 498                 wpa_supplicant_ap_deinit(wpa_s);
 499                 return -1;
 500         }
 501
 502 #ifdef CONFIG_P2P
 503         if (ssid->mode == WPAS_MODE_P2P_GO)
 504                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 505         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 506                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 507                         P2P_GROUP_FORMATION;
 508 #endif /* CONFIG_P2P */
 509
 510         hapd_iface->num_bss = conf->num_bss;
 511         hapd_iface->bss = os_zalloc(conf->num_bss *
 512                                     sizeof(struct hostapd_data *));
 513         if (hapd_iface->bss == NULL) {
 514                 wpa_supplicant_ap_deinit(wpa_s);
 515                 return -1;
 516         }
 517
 518         for (i = 0; i < conf->num_bss; i++) {
 519                 hapd_iface->bss[i] =
 520                         hostapd_alloc_bss_data(hapd_iface, conf,
 521                                                &conf->bss[i]);
 522                 if (hapd_iface->bss[i] == NULL) {
 523                         wpa_supplicant_ap_deinit(wpa_s);
 524                         return -1;
 525                 }
 526
 527                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 528                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 529                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 530                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 531                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 532                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 533                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 534                                              ap_probe_req_rx, wpa_s);
 535                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 536                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 537                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 538                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 539                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 540                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 541 #ifdef CONFIG_P2P
 542                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 543                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 544                                                                     ssid);
 545 #endif /* CONFIG_P2P */
 546                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 547                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 548         }
 549
 550         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 551         hapd_iface->bss[0]->driver = wpa_s->driver;
 552         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 553
 554         wpa_s->current_ssid = ssid;
 555         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 556         wpa_s->assoc_freq = ssid->frequency;
 557
 558         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 559                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 560                 wpa_supplicant_ap_deinit(wpa_s);
 561                 return -1;
 562         }
 563
 564         return 0;
 565 }
 566
 567
 568 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 569 {
 570 #ifdef CONFIG_WPS
 571         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 572 #endif /* CONFIG_WPS */
 573
 574         if (wpa_s->ap_iface == NULL)
 575                 return;
 576
 577         wpa_s->current_ssid = NULL;
 578         wpa_s->assoc_freq = 0;
 579         wpa_s->reassociated_connection = 0;
 580 #ifdef CONFIG_P2P
 581         if (wpa_s->ap_iface->bss)
 582                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 583         wpas_p2p_group_deinit(wpa_s);
 584 #endif /* CONFIG_P2P */
 585         hostapd_interface_deinit(wpa_s->ap_iface);
 586         hostapd_interface_free(wpa_s->ap_iface);
 587         wpa_s->ap_iface = NULL;
 588         wpa_drv_deinit_ap(wpa_s);
 589 }
 590
 591
 592 void ap_tx_status(void *ctx, const u8 *addr,
 593                   const u8 *buf, size_t len, int ack)
 594 {
 595 #ifdef NEED_AP_MLME
 596         struct wpa_supplicant *wpa_s = ctx;
 597         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 598 #endif /* NEED_AP_MLME */
 599 }
 600
 601
 602 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 603                         const u8 *data, size_t len, int ack)
 604 {
 605 #ifdef NEED_AP_MLME
 606         struct wpa_supplicant *wpa_s = ctx;
 607         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 608 #endif /* NEED_AP_MLME */
 609 }
 610
 611
 612 void ap_client_poll_ok(void *ctx, const u8 *addr)
 613 {
 614 #ifdef NEED_AP_MLME
 615         struct wpa_supplicant *wpa_s = ctx;
 616         if (wpa_s->ap_iface)
 617                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 618 #endif /* NEED_AP_MLME */
 619 }
 620
 621
 622 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 623 {
 624 #ifdef NEED_AP_MLME
 625         struct wpa_supplicant *wpa_s = ctx;
 626         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 627 #endif /* NEED_AP_MLME */
 628 }
 629
 630
 631 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 632 {
 633 #ifdef NEED_AP_MLME
 634         struct wpa_supplicant *wpa_s = ctx;
 635         struct hostapd_frame_info fi;
 636         os_memset(&fi, 0, sizeof(fi));
 637         fi.datarate = rx_mgmt->datarate;
 638         fi.ssi_signal = rx_mgmt->ssi_signal;
 639         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 640                         rx_mgmt->frame_len, &fi);
 641 #endif /* NEED_AP_MLME */
 642 }
 643
 644
 645 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 646 {
 647 #ifdef NEED_AP_MLME
 648         struct wpa_supplicant *wpa_s = ctx;
 649         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 650 #endif /* NEED_AP_MLME */
 651 }
 652
 653
 654 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 655                                 const u8 *src_addr, const u8 *buf, size_t len)
 656 {
 657         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 658 }
 659
 660
 661 #ifdef CONFIG_WPS
 662
 663 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 664                               const u8 *p2p_dev_addr)
 665 {
 666         if (!wpa_s->ap_iface)
 667                 return -1;
 668         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 669                                          p2p_dev_addr);
 670 }
 671
 672
 673 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 674 {
 675         struct wps_registrar *reg;
 676         int reg_sel = 0, wps_sta = 0;
 677
 678         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 679                 return -1;
 680
 681         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 682         reg_sel = wps_registrar_wps_cancel(reg);
 683         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 684                                   ap_sta_wps_cancel, NULL);
 685
 686         if (!reg_sel && !wps_sta) {
 687                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 688                            "time");
 689                 return -1;
 690         }
 691
 692         /*
 693          * There are 2 cases to return wps cancel as success:
 694          * 1. When wps cancel was initiated but no connection has been
 695          *    established with client yet.
 696          * 2. Client is in the middle of exchanging WPS messages.
 697          */
 698
 699         return 0;
 700 }
 701
 702
 703 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 704                               const char *pin, char *buf, size_t buflen)
 705 {
 706         int ret, ret_len = 0;
 707
 708         if (!wpa_s->ap_iface)
 709                 return -1;
 710
 711         if (pin == NULL) {
 712                 unsigned int rpin = wps_generate_pin();
 713                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 714                 pin = buf;
 715         } else
 716                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 717
 718         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 719                                   0);
 720         if (ret)
 721                 return -1;
 722         return ret_len;
 723 }
 724
 725
 726 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 727 {
 728         struct wpa_supplicant *wpa_s = eloop_data;
 729         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 730         wpas_wps_ap_pin_disable(wpa_s);
 731 }
 732
 733
 734 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 735 {
 736         struct hostapd_data *hapd;
 737
 738         if (wpa_s->ap_iface == NULL)
 739                 return;
 740         hapd = wpa_s->ap_iface->bss[0];
 741         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 742         hapd->ap_pin_failures = 0;
 743         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 744         if (timeout > 0)
 745                 eloop_register_timeout(timeout, 0,
 746                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 747 }
 748
 749
 750 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 751 {
 752         struct hostapd_data *hapd;
 753
 754         if (wpa_s->ap_iface == NULL)
 755                 return;
 756         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 757         hapd = wpa_s->ap_iface->bss[0];
 758         os_free(hapd->conf->ap_pin);
 759         hapd->conf->ap_pin = NULL;
 760         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 761 }
 762
 763
 764 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 765 {
 766         struct hostapd_data *hapd;
 767         unsigned int pin;
 768         char pin_txt[9];
 769
 770         if (wpa_s->ap_iface == NULL)
 771                 return NULL;
 772         hapd = wpa_s->ap_iface->bss[0];
 773         pin = wps_generate_pin();
 774         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 775         os_free(hapd->conf->ap_pin);
 776         hapd->conf->ap_pin = os_strdup(pin_txt);
 777         if (hapd->conf->ap_pin == NULL)
 778                 return NULL;
 779         wpas_wps_ap_pin_enable(wpa_s, timeout);
 780
 781         return hapd->conf->ap_pin;
 782 }
 783
 784
 785 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 786 {
 787         struct hostapd_data *hapd;
 788         if (wpa_s->ap_iface == NULL)
 789                 return NULL;
 790         hapd = wpa_s->ap_iface->bss[0];
 791         return hapd->conf->ap_pin;
 792 }
 793
 794
 795 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 796                         int timeout)
 797 {
 798         struct hostapd_data *hapd;
 799         char pin_txt[9];
 800         int ret;
 801
 802         if (wpa_s->ap_iface == NULL)
 803                 return -1;
 804         hapd = wpa_s->ap_iface->bss[0];
 805         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 806         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 807                 return -1;
 808         os_free(hapd->conf->ap_pin);
 809         hapd->conf->ap_pin = os_strdup(pin_txt);
 810         if (hapd->conf->ap_pin == NULL)
 811                 return -1;
 812         wpas_wps_ap_pin_enable(wpa_s, timeout);
 813
 814         return 0;
 815 }
 816
 817
 818 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 819 {
 820         struct hostapd_data *hapd;
 821
 822         if (wpa_s->ap_iface == NULL)
 823                 return;
 824         hapd = wpa_s->ap_iface->bss[0];
 825
 826         /*
 827          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 828          * PIN if this happens multiple times to slow down brute force attacks.
 829          */
 830         hapd->ap_pin_failures++;
 831         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 832                    hapd->ap_pin_failures);
 833         if (hapd->ap_pin_failures < 3)
 834                 return;
 835
 836         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 837         hapd->ap_pin_failures = 0;
 838         os_free(hapd->conf->ap_pin);
 839         hapd->conf->ap_pin = NULL;
 840 }
 841
 842 #endif /* CONFIG_WPS */
 843
 844
 845 #ifdef CONFIG_CTRL_IFACE
 846
 847 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 848                             char *buf, size_t buflen)
 849 {
 850         if (wpa_s->ap_iface == NULL)
 851                 return -1;
 852         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 853                                             buf, buflen);
 854 }
 855
 856
 857 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 858                       char *buf, size_t buflen)
 859 {
 860         if (wpa_s->ap_iface == NULL)
 861                 return -1;
 862         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 863                                       buf, buflen);
 864 }
 865
 866
 867 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 868                            char *buf, size_t buflen)
 869 {
 870         if (wpa_s->ap_iface == NULL)
 871                 return -1;
 872         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 873                                            buf, buflen);
 874 }
 875
 876
 877 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 878                                    const char *txtaddr)
 879 {
 880         if (wpa_s->ap_iface == NULL)
 881                 return -1;
 882         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 883                                                txtaddr);
 884 }
 885
 886
 887 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 888                                      const char *txtaddr)
 889 {
 890         if (wpa_s->ap_iface == NULL)
 891                 return -1;
 892         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 893                                                  txtaddr);
 894 }
 895
 896
 897 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 898                                  size_t buflen, int verbose)
 899 {
 900         char *pos = buf, *end = buf + buflen;
 901         int ret;
 902         struct hostapd_bss_config *conf;
 903
 904         if (wpa_s->ap_iface == NULL)
 905                 return -1;
 906
 907         conf = wpa_s->ap_iface->bss[0]->conf;
 908         if (conf->wpa == 0)
 909                 return 0;
 910
 911         ret = os_snprintf(pos, end - pos,
 912                           "pairwise_cipher=%s\n"
 913                           "group_cipher=%s\n"
 914                           "key_mgmt=%s\n",
 915                           wpa_cipher_txt(conf->rsn_pairwise),
 916                           wpa_cipher_txt(conf->wpa_group),
 917                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 918                                            conf->wpa));
 919         if (ret < 0 || ret >= end - pos)
 920                 return pos - buf;
 921         pos += ret;
 922         return pos - buf;
 923 }
 924
 925 #endif /* CONFIG_CTRL_IFACE */
 926
 927
 928 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 929 {
 930         struct hostapd_iface *iface = wpa_s->ap_iface;
 931         struct wpa_ssid *ssid = wpa_s->current_ssid;
 932         struct hostapd_data *hapd;
 933
 934         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 935             ssid->mode == WPAS_MODE_INFRA ||
 936             ssid->mode == WPAS_MODE_IBSS)
 937                 return -1;
 938
 939 #ifdef CONFIG_P2P
 940         if (ssid->mode == WPAS_MODE_P2P_GO)
 941                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 942         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 943                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 944                         P2P_GROUP_FORMATION;
 945 #endif /* CONFIG_P2P */
 946
 947         hapd = iface->bss[0];
 948         if (hapd->drv_priv == NULL)
 949                 return -1;
 950         ieee802_11_set_beacons(iface);
 951         hostapd_set_ap_wps_ie(hapd);
 952
 953         return 0;
 954 }
 955
 956
 957 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 958                                       const u8 *addr)
 959 {
 960         struct hostapd_data *hapd;
 961         struct hostapd_bss_config *conf;
 962
 963         if (!wpa_s->ap_iface)
 964                 return -1;
 965
 966         if (addr)
 967                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 968                            MAC2STR(addr));
 969         else
 970                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 971
 972         hapd = wpa_s->ap_iface->bss[0];
 973         conf = hapd->conf;
 974
 975         os_free(conf->accept_mac);
 976         conf->accept_mac = NULL;
 977         conf->num_accept_mac = 0;
 978         os_free(conf->deny_mac);
 979         conf->deny_mac = NULL;
 980         conf->num_deny_mac = 0;
 981
 982         if (addr == NULL) {
 983                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 984                 return 0;
 985         }
 986
 987         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 988         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 989         if (conf->accept_mac == NULL)
 990                 return -1;
 991         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 992         conf->num_accept_mac = 1;
 993
 994         return 0;
 995 }