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_len = ssid->ssid_len;
 154         bss->ssid.ssid_set = 1;
 155
 156         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 157
 158         if (ssid->auth_alg)
 159                 bss->auth_algs = ssid->auth_alg;
 160
 161         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 162                 bss->wpa = ssid->proto;
 163         bss->wpa_key_mgmt = ssid->key_mgmt;
 164         bss->wpa_pairwise = ssid->pairwise_cipher;
 165         if (ssid->passphrase) {
 166                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 167         } else if (ssid->psk_set) {
 168                 os_free(bss->ssid.wpa_psk);
 169                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 170                 if (bss->ssid.wpa_psk == NULL)
 171                         return -1;
 172                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 173                 bss->ssid.wpa_psk->group = 1;
 174         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 175                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 176                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 177                 int i;
 178                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 179                         if (ssid->wep_key_len[i] == 0)
 180                                 continue;
 181                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 182                         if (wep->key[i] == NULL)
 183                                 return -1;
 184                         os_memcpy(wep->key[i], ssid->wep_key[i],
 185                                   ssid->wep_key_len[i]);
 186                         wep->len[i] = ssid->wep_key_len[i];
 187                 }
 188                 wep->idx = ssid->wep_tx_keyidx;
 189                 wep->keys_set = 1;
 190         }
 191
 192         if (ssid->ap_max_inactivity)
 193                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 194
 195         if (ssid->dtim_period)
 196                 bss->dtim_period = ssid->dtim_period;
 197
 198         /* Select group cipher based on the enabled pairwise cipher suites */
 199         pairwise = 0;
 200         if (bss->wpa & 1)
 201                 pairwise |= bss->wpa_pairwise;
 202         if (bss->wpa & 2) {
 203                 if (bss->rsn_pairwise == 0)
 204                         bss->rsn_pairwise = bss->wpa_pairwise;
 205                 pairwise |= bss->rsn_pairwise;
 206         }
 207         if (pairwise & WPA_CIPHER_TKIP)
 208                 bss->wpa_group = WPA_CIPHER_TKIP;
 209         else
 210                 bss->wpa_group = WPA_CIPHER_CCMP;
 211
 212         if (bss->wpa && bss->ieee802_1x)
 213                 bss->ssid.security_policy = SECURITY_WPA;
 214         else if (bss->wpa)
 215                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 216         else if (bss->ieee802_1x) {
 217                 int cipher = WPA_CIPHER_NONE;
 218                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 219                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 220                 if (bss->default_wep_key_len)
 221                         cipher = bss->default_wep_key_len >= 13 ?
 222                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 223                 bss->wpa_group = cipher;
 224                 bss->wpa_pairwise = cipher;
 225                 bss->rsn_pairwise = cipher;
 226         } else if (bss->ssid.wep.keys_set) {
 227                 int cipher = WPA_CIPHER_WEP40;
 228                 if (bss->ssid.wep.len[0] >= 13)
 229                         cipher = WPA_CIPHER_WEP104;
 230                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 231                 bss->wpa_group = cipher;
 232                 bss->wpa_pairwise = cipher;
 233                 bss->rsn_pairwise = cipher;
 234         } else {
 235                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 236                 bss->wpa_group = WPA_CIPHER_NONE;
 237                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 238                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 239         }
 240
 241 #ifdef CONFIG_WPS
 242         /*
 243          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 244          * require user interaction to actually use it. Only the internal
 245          * Registrar is supported.
 246          */
 247         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 248             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 249                 goto no_wps;
 250 #ifdef CONFIG_WPS2
 251         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 252             (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 253                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 254                               * configuration */
 255 #endif /* CONFIG_WPS2 */
 256         bss->eap_server = 1;
 257
 258         if (!ssid->ignore_broadcast_ssid)
 259                 bss->wps_state = 2;
 260
 261         bss->ap_setup_locked = 2;
 262         if (wpa_s->conf->config_methods)
 263                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 264         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 265                   WPS_DEV_TYPE_LEN);
 266         if (wpa_s->conf->device_name) {
 267                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 268                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 269         }
 270         if (wpa_s->conf->manufacturer)
 271                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 272         if (wpa_s->conf->model_name)
 273                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 274         if (wpa_s->conf->model_number)
 275                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 276         if (wpa_s->conf->serial_number)
 277                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 278         if (is_nil_uuid(wpa_s->conf->uuid))
 279                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 280         else
 281                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 282         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 283         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 284 no_wps:
 285 #endif /* CONFIG_WPS */
 286
 287         if (wpa_s->max_stations &&
 288             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 289                 bss->max_num_sta = wpa_s->max_stations;
 290         else
 291                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 292
 293         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 294
 295         return 0;
 296 }
 297
 298
 299 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 300 {
 301 #ifdef CONFIG_P2P
 302         struct wpa_supplicant *wpa_s = ctx;
 303         const struct ieee80211_mgmt *mgmt;
 304         size_t hdr_len;
 305
 306         mgmt = (const struct ieee80211_mgmt *) buf;
 307         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 308         if (hdr_len > len)
 309                 return;
 310         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 311                            mgmt->u.action.category,
 312                            &mgmt->u.action.u.vs_public_action.action,
 313                            len - hdr_len, freq);
 314 #endif /* CONFIG_P2P */
 315 }
 316
 317
 318 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 319                             union wps_event_data *data)
 320 {
 321 #ifdef CONFIG_P2P
 322         struct wpa_supplicant *wpa_s = ctx;
 323
 324         if (event == WPS_EV_FAIL) {
 325                 struct wps_event_fail *fail = &data->fail;
 326
 327                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 328                     wpa_s == wpa_s->global->p2p_group_formation) {
 329                         /*
 330                          * src/ap/wps_hostapd.c has already sent this on the
 331                          * main interface, so only send on the parent interface
 332                          * here if needed.
 333                          */
 334                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 335                                 "msg=%d config_error=%d",
 336                                 fail->msg, fail->config_error);
 337                 }
 338                 wpas_p2p_wps_failed(wpa_s, fail);
 339         }
 340 #endif /* CONFIG_P2P */
 341 }
 342
 343
 344 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 345                                  int authorized, const u8 *p2p_dev_addr)
 346 {
 347         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 348 }
 349
 350
 351 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 352 {
 353 #ifdef CONFIG_P2P
 354         struct wpa_supplicant *wpa_s = ctx;
 355         const struct ieee80211_mgmt *mgmt;
 356         size_t hdr_len;
 357
 358         mgmt = (const struct ieee80211_mgmt *) buf;
 359         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 360         if (hdr_len > len)
 361                 return -1;
 362         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 363                            mgmt->u.action.category,
 364                            &mgmt->u.action.u.vs_public_action.action,
 365                            len - hdr_len, freq);
 366 #endif /* CONFIG_P2P */
 367         return 0;
 368 }
 369
 370
 371 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 372                            const u8 *bssid, const u8 *ie, size_t ie_len,
 373                            int ssi_signal)
 374 {
 375 #ifdef CONFIG_P2P
 376         struct wpa_supplicant *wpa_s = ctx;
 377         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 378                                      ssi_signal);
 379 #else /* CONFIG_P2P */
 380         return 0;
 381 #endif /* CONFIG_P2P */
 382 }
 383
 384
 385 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 386                                   const u8 *uuid_e)
 387 {
 388 #ifdef CONFIG_P2P
 389         struct wpa_supplicant *wpa_s = ctx;
 390         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 391 #endif /* CONFIG_P2P */
 392 }
 393
 394
 395 static void wpas_ap_configured_cb(void *ctx)
 396 {
 397         struct wpa_supplicant *wpa_s = ctx;
 398
 399         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 400
 401         if (wpa_s->ap_configured_cb)
 402                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 403                                         wpa_s->ap_configured_cb_data);
 404 }
 405
 406
 407 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 408                              struct wpa_ssid *ssid)
 409 {
 410         struct wpa_driver_associate_params params;
 411         struct hostapd_iface *hapd_iface;
 412         struct hostapd_config *conf;
 413         size_t i;
 414
 415         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 416                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 417                 return -1;
 418         }
 419
 420         wpa_supplicant_ap_deinit(wpa_s);
 421
 422         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 423                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 424
 425         os_memset(&params, 0, sizeof(params));
 426         params.ssid = ssid->ssid;
 427         params.ssid_len = ssid->ssid_len;
 428         switch (ssid->mode) {
 429         case WPAS_MODE_INFRA:
 430                 params.mode = IEEE80211_MODE_INFRA;
 431                 break;
 432         case WPAS_MODE_IBSS:
 433                 params.mode = IEEE80211_MODE_IBSS;
 434                 break;
 435         case WPAS_MODE_AP:
 436         case WPAS_MODE_P2P_GO:
 437         case WPAS_MODE_P2P_GROUP_FORMATION:
 438                 params.mode = IEEE80211_MODE_AP;
 439                 break;
 440         }
 441         params.freq = ssid->frequency;
 442
 443         params.wpa_proto = ssid->proto;
 444         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 445                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 446         else
 447                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 448         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 449
 450         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 451                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 452         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 453                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 454         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 455                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 456         else {
 457                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 458                            "cipher.");
 459                 return -1;
 460         }
 461         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 462         params.group_suite = params.pairwise_suite;
 463
 464 #ifdef CONFIG_P2P
 465         if (ssid->mode == WPAS_MODE_P2P_GO ||
 466             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 467                 params.p2p = 1;
 468 #endif /* CONFIG_P2P */
 469
 470         if (wpa_s->parent->set_ap_uapsd)
 471                 params.uapsd = wpa_s->parent->ap_uapsd;
 472         else
 473                 params.uapsd = -1;
 474
 475         if (wpa_drv_associate(wpa_s, &params) < 0) {
 476                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 477                 return -1;
 478         }
 479
 480         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 481         if (hapd_iface == NULL)
 482                 return -1;
 483         hapd_iface->owner = wpa_s;
 484         hapd_iface->drv_flags = wpa_s->drv_flags;
 485         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 486
 487         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 488         if (conf == NULL) {
 489                 wpa_supplicant_ap_deinit(wpa_s);
 490                 return -1;
 491         }
 492
 493         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 494                   wpa_s->conf->wmm_ac_params,
 495                   sizeof(wpa_s->conf->wmm_ac_params));
 496
 497         if (params.uapsd > 0) {
 498                 conf->bss->wmm_enabled = 1;
 499                 conf->bss->wmm_uapsd = 1;
 500         }
 501
 502         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 503                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 504                 wpa_supplicant_ap_deinit(wpa_s);
 505                 return -1;
 506         }
 507
 508 #ifdef CONFIG_P2P
 509         if (ssid->mode == WPAS_MODE_P2P_GO)
 510                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 511         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 512                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 513                         P2P_GROUP_FORMATION;
 514 #endif /* CONFIG_P2P */
 515
 516         hapd_iface->num_bss = conf->num_bss;
 517         hapd_iface->bss = os_calloc(conf->num_bss,
 518                                     sizeof(struct hostapd_data *));
 519         if (hapd_iface->bss == NULL) {
 520                 wpa_supplicant_ap_deinit(wpa_s);
 521                 return -1;
 522         }
 523
 524         for (i = 0; i < conf->num_bss; i++) {
 525                 hapd_iface->bss[i] =
 526                         hostapd_alloc_bss_data(hapd_iface, conf,
 527                                                &conf->bss[i]);
 528                 if (hapd_iface->bss[i] == NULL) {
 529                         wpa_supplicant_ap_deinit(wpa_s);
 530                         return -1;
 531                 }
 532
 533                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 534                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 535                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 536                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 537                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 538                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 539                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 540                                              ap_probe_req_rx, wpa_s);
 541                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 542                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 543                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 544                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 545                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 546                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 547 #ifdef CONFIG_P2P
 548                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 549                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 550                                                                     ssid);
 551 #endif /* CONFIG_P2P */
 552                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 553                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 554         }
 555
 556         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 557         hapd_iface->bss[0]->driver = wpa_s->driver;
 558         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 559
 560         wpa_s->current_ssid = ssid;
 561         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 562         wpa_s->assoc_freq = ssid->frequency;
 563
 564         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 565                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 566                 wpa_supplicant_ap_deinit(wpa_s);
 567                 return -1;
 568         }
 569
 570         return 0;
 571 }
 572
 573
 574 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 575 {
 576 #ifdef CONFIG_WPS
 577         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 578 #endif /* CONFIG_WPS */
 579
 580         if (wpa_s->ap_iface == NULL)
 581                 return;
 582
 583         wpa_s->current_ssid = NULL;
 584         wpa_s->assoc_freq = 0;
 585         wpa_s->reassociated_connection = 0;
 586 #ifdef CONFIG_P2P
 587         if (wpa_s->ap_iface->bss)
 588                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 589         wpas_p2p_group_deinit(wpa_s);
 590 #endif /* CONFIG_P2P */
 591         hostapd_interface_deinit(wpa_s->ap_iface);
 592         hostapd_interface_free(wpa_s->ap_iface);
 593         wpa_s->ap_iface = NULL;
 594         wpa_drv_deinit_ap(wpa_s);
 595 }
 596
 597
 598 void ap_tx_status(void *ctx, const u8 *addr,
 599                   const u8 *buf, size_t len, int ack)
 600 {
 601 #ifdef NEED_AP_MLME
 602         struct wpa_supplicant *wpa_s = ctx;
 603         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 604 #endif /* NEED_AP_MLME */
 605 }
 606
 607
 608 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 609                         const u8 *data, size_t len, int ack)
 610 {
 611 #ifdef NEED_AP_MLME
 612         struct wpa_supplicant *wpa_s = ctx;
 613         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 614 #endif /* NEED_AP_MLME */
 615 }
 616
 617
 618 void ap_client_poll_ok(void *ctx, const u8 *addr)
 619 {
 620 #ifdef NEED_AP_MLME
 621         struct wpa_supplicant *wpa_s = ctx;
 622         if (wpa_s->ap_iface)
 623                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 624 #endif /* NEED_AP_MLME */
 625 }
 626
 627
 628 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 629 {
 630 #ifdef NEED_AP_MLME
 631         struct wpa_supplicant *wpa_s = ctx;
 632         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 633 #endif /* NEED_AP_MLME */
 634 }
 635
 636
 637 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 638 {
 639 #ifdef NEED_AP_MLME
 640         struct wpa_supplicant *wpa_s = ctx;
 641         struct hostapd_frame_info fi;
 642         os_memset(&fi, 0, sizeof(fi));
 643         fi.datarate = rx_mgmt->datarate;
 644         fi.ssi_signal = rx_mgmt->ssi_signal;
 645         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 646                         rx_mgmt->frame_len, &fi);
 647 #endif /* NEED_AP_MLME */
 648 }
 649
 650
 651 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 652 {
 653 #ifdef NEED_AP_MLME
 654         struct wpa_supplicant *wpa_s = ctx;
 655         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 656 #endif /* NEED_AP_MLME */
 657 }
 658
 659
 660 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 661                                 const u8 *src_addr, const u8 *buf, size_t len)
 662 {
 663         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 664 }
 665
 666
 667 #ifdef CONFIG_WPS
 668
 669 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 670                               const u8 *p2p_dev_addr)
 671 {
 672         if (!wpa_s->ap_iface)
 673                 return -1;
 674         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 675                                          p2p_dev_addr);
 676 }
 677
 678
 679 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 680 {
 681         struct wps_registrar *reg;
 682         int reg_sel = 0, wps_sta = 0;
 683
 684         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 685                 return -1;
 686
 687         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 688         reg_sel = wps_registrar_wps_cancel(reg);
 689         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 690                                   ap_sta_wps_cancel, NULL);
 691
 692         if (!reg_sel && !wps_sta) {
 693                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 694                            "time");
 695                 return -1;
 696         }
 697
 698         /*
 699          * There are 2 cases to return wps cancel as success:
 700          * 1. When wps cancel was initiated but no connection has been
 701          *    established with client yet.
 702          * 2. Client is in the middle of exchanging WPS messages.
 703          */
 704
 705         return 0;
 706 }
 707
 708
 709 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 710                               const char *pin, char *buf, size_t buflen)
 711 {
 712         int ret, ret_len = 0;
 713
 714         if (!wpa_s->ap_iface)
 715                 return -1;
 716
 717         if (pin == NULL) {
 718                 unsigned int rpin = wps_generate_pin();
 719                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 720                 pin = buf;
 721         } else
 722                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 723
 724         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 725                                   0);
 726         if (ret)
 727                 return -1;
 728         return ret_len;
 729 }
 730
 731
 732 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 733 {
 734         struct wpa_supplicant *wpa_s = eloop_data;
 735         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 736         wpas_wps_ap_pin_disable(wpa_s);
 737 }
 738
 739
 740 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 741 {
 742         struct hostapd_data *hapd;
 743
 744         if (wpa_s->ap_iface == NULL)
 745                 return;
 746         hapd = wpa_s->ap_iface->bss[0];
 747         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 748         hapd->ap_pin_failures = 0;
 749         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 750         if (timeout > 0)
 751                 eloop_register_timeout(timeout, 0,
 752                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 753 }
 754
 755
 756 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 757 {
 758         struct hostapd_data *hapd;
 759
 760         if (wpa_s->ap_iface == NULL)
 761                 return;
 762         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 763         hapd = wpa_s->ap_iface->bss[0];
 764         os_free(hapd->conf->ap_pin);
 765         hapd->conf->ap_pin = NULL;
 766         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 767 }
 768
 769
 770 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 771 {
 772         struct hostapd_data *hapd;
 773         unsigned int pin;
 774         char pin_txt[9];
 775
 776         if (wpa_s->ap_iface == NULL)
 777                 return NULL;
 778         hapd = wpa_s->ap_iface->bss[0];
 779         pin = wps_generate_pin();
 780         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 781         os_free(hapd->conf->ap_pin);
 782         hapd->conf->ap_pin = os_strdup(pin_txt);
 783         if (hapd->conf->ap_pin == NULL)
 784                 return NULL;
 785         wpas_wps_ap_pin_enable(wpa_s, timeout);
 786
 787         return hapd->conf->ap_pin;
 788 }
 789
 790
 791 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 792 {
 793         struct hostapd_data *hapd;
 794         if (wpa_s->ap_iface == NULL)
 795                 return NULL;
 796         hapd = wpa_s->ap_iface->bss[0];
 797         return hapd->conf->ap_pin;
 798 }
 799
 800
 801 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 802                         int timeout)
 803 {
 804         struct hostapd_data *hapd;
 805         char pin_txt[9];
 806         int ret;
 807
 808         if (wpa_s->ap_iface == NULL)
 809                 return -1;
 810         hapd = wpa_s->ap_iface->bss[0];
 811         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 812         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 813                 return -1;
 814         os_free(hapd->conf->ap_pin);
 815         hapd->conf->ap_pin = os_strdup(pin_txt);
 816         if (hapd->conf->ap_pin == NULL)
 817                 return -1;
 818         wpas_wps_ap_pin_enable(wpa_s, timeout);
 819
 820         return 0;
 821 }
 822
 823
 824 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 825 {
 826         struct hostapd_data *hapd;
 827
 828         if (wpa_s->ap_iface == NULL)
 829                 return;
 830         hapd = wpa_s->ap_iface->bss[0];
 831
 832         /*
 833          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 834          * PIN if this happens multiple times to slow down brute force attacks.
 835          */
 836         hapd->ap_pin_failures++;
 837         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 838                    hapd->ap_pin_failures);
 839         if (hapd->ap_pin_failures < 3)
 840                 return;
 841
 842         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 843         hapd->ap_pin_failures = 0;
 844         os_free(hapd->conf->ap_pin);
 845         hapd->conf->ap_pin = NULL;
 846 }
 847
 848 #endif /* CONFIG_WPS */
 849
 850
 851 #ifdef CONFIG_CTRL_IFACE
 852
 853 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 854                             char *buf, size_t buflen)
 855 {
 856         if (wpa_s->ap_iface == NULL)
 857                 return -1;
 858         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 859                                             buf, buflen);
 860 }
 861
 862
 863 int ap_ctrl_iface_sta(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(wpa_s->ap_iface->bss[0], txtaddr,
 869                                       buf, buflen);
 870 }
 871
 872
 873 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 874                            char *buf, size_t buflen)
 875 {
 876         if (wpa_s->ap_iface == NULL)
 877                 return -1;
 878         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 879                                            buf, buflen);
 880 }
 881
 882
 883 int ap_ctrl_iface_sta_disassociate(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_disassociate(wpa_s->ap_iface->bss[0],
 889                                                txtaddr);
 890 }
 891
 892
 893 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 894                                      const char *txtaddr)
 895 {
 896         if (wpa_s->ap_iface == NULL)
 897                 return -1;
 898         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 899                                                  txtaddr);
 900 }
 901
 902
 903 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 904                                  size_t buflen, int verbose)
 905 {
 906         char *pos = buf, *end = buf + buflen;
 907         int ret;
 908         struct hostapd_bss_config *conf;
 909
 910         if (wpa_s->ap_iface == NULL)
 911                 return -1;
 912
 913         conf = wpa_s->ap_iface->bss[0]->conf;
 914         if (conf->wpa == 0)
 915                 return 0;
 916
 917         ret = os_snprintf(pos, end - pos,
 918                           "pairwise_cipher=%s\n"
 919                           "group_cipher=%s\n"
 920                           "key_mgmt=%s\n",
 921                           wpa_cipher_txt(conf->rsn_pairwise),
 922                           wpa_cipher_txt(conf->wpa_group),
 923                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 924                                            conf->wpa));
 925         if (ret < 0 || ret >= end - pos)
 926                 return pos - buf;
 927         pos += ret;
 928         return pos - buf;
 929 }
 930
 931 #endif /* CONFIG_CTRL_IFACE */
 932
 933
 934 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 935 {
 936         struct hostapd_iface *iface = wpa_s->ap_iface;
 937         struct wpa_ssid *ssid = wpa_s->current_ssid;
 938         struct hostapd_data *hapd;
 939
 940         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 941             ssid->mode == WPAS_MODE_INFRA ||
 942             ssid->mode == WPAS_MODE_IBSS)
 943                 return -1;
 944
 945 #ifdef CONFIG_P2P
 946         if (ssid->mode == WPAS_MODE_P2P_GO)
 947                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 948         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 949                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 950                         P2P_GROUP_FORMATION;
 951 #endif /* CONFIG_P2P */
 952
 953         hapd = iface->bss[0];
 954         if (hapd->drv_priv == NULL)
 955                 return -1;
 956         ieee802_11_set_beacons(iface);
 957         hostapd_set_ap_wps_ie(hapd);
 958
 959         return 0;
 960 }
 961
 962
 963 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
 964                        int offset)
 965 {
 966         if (!wpa_s->ap_iface)
 967                 return;
 968
 969         wpa_s->assoc_freq = freq;
 970         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
 971 }
 972
 973
 974 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 975                                       const u8 *addr)
 976 {
 977         struct hostapd_data *hapd;
 978         struct hostapd_bss_config *conf;
 979
 980         if (!wpa_s->ap_iface)
 981                 return -1;
 982
 983         if (addr)
 984                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 985                            MAC2STR(addr));
 986         else
 987                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 988
 989         hapd = wpa_s->ap_iface->bss[0];
 990         conf = hapd->conf;
 991
 992         os_free(conf->accept_mac);
 993         conf->accept_mac = NULL;
 994         conf->num_accept_mac = 0;
 995         os_free(conf->deny_mac);
 996         conf->deny_mac = NULL;
 997         conf->num_deny_mac = 0;
 998
 999         if (addr == NULL) {
1000                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1001                 return 0;
1002         }
1003
1004         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1005         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1006         if (conf->accept_mac == NULL)
1007                 return -1;
1008         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1009         conf->num_accept_mac = 1;
1010
1011         return 0;
1012 }