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
  50         conf->driver = wpa_s->driver;
  51
  52         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  53
  54         if (ssid->frequency == 0) {
  55                 /* default channel 11 */
  56                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  57                 conf->channel = 11;
  58         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
  59                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  60                 conf->channel = (ssid->frequency - 2407) / 5;
  61         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
  62                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
  63                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
  64                 conf->channel = (ssid->frequency - 5000) / 5;
  65         } else if (ssid->frequency >= 56160 + 2160 * 1 &&
  66                    ssid->frequency <= 56160 + 2160 * 4) {
  67                 conf->hw_mode = HOSTAPD_MODE_IEEE80211AD;
  68                 conf->channel = (ssid->frequency - 56160) / 2160;
  69         } else {
  70                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  71                            ssid->frequency);
  72                 return -1;
  73         }
  74
  75         /* TODO: enable HT40 if driver supports it;
  76          * drop to 11b if driver does not support 11g */
  77
  78 #ifdef CONFIG_IEEE80211N
  79         /*
  80          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  81          * and a mask of allowed capabilities within conf->ht_capab.
  82          * Using default config settings for: conf->ht_op_mode_fixed,
  83          * conf->secondary_channel, conf->require_ht
  84          */
  85         if (wpa_s->hw.modes) {
  86                 struct hostapd_hw_modes *mode = NULL;
  87                 int i, no_ht = 0;
  88                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
  89                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
  90                                 mode = &wpa_s->hw.modes[i];
  91                                 break;
  92                         }
  93                 }
  94
  95 #ifdef CONFIG_HT_OVERRIDES
  96                 if (ssid->disable_ht) {
  97                         conf->ieee80211n = 0;
  98                         conf->ht_capab = 0;
  99                         no_ht = 1;
 100                 }
 101 #endif /* CONFIG_HT_OVERRIDES */
 102
 103                 if (!no_ht && mode && mode->ht_capab) {
 104                         conf->ieee80211n = 1;
 105 #ifdef CONFIG_P2P
 106                         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
 107                             (mode->ht_capab &
 108                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
 109                             ssid->ht40)
 110                                 conf->secondary_channel =
 111                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
 112                                                                conf->channel);
 113                         if (conf->secondary_channel)
 114                                 conf->ht_capab |=
 115                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 116 #endif /* CONFIG_P2P */
 117
 118                         /*
 119                          * white-list capabilities that won't cause issues
 120                          * to connecting stations, while leaving the current
 121                          * capabilities intact (currently disabled SMPS).
 122                          */
 123                         conf->ht_capab |= mode->ht_capab &
 124                                 (HT_CAP_INFO_GREEN_FIELD |
 125                                  HT_CAP_INFO_SHORT_GI20MHZ |
 126                                  HT_CAP_INFO_SHORT_GI40MHZ |
 127                                  HT_CAP_INFO_RX_STBC_MASK |
 128                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 129                 }
 130         }
 131 #endif /* CONFIG_IEEE80211N */
 132
 133 #ifdef CONFIG_P2P
 134         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 135                 /* Remove 802.11b rates from supported and basic rate sets */
 136                 int *list = os_malloc(4 * sizeof(int));
 137                 if (list) {
 138                         list[0] = 60;
 139                         list[1] = 120;
 140                         list[2] = 240;
 141                         list[3] = -1;
 142                 }
 143                 conf->basic_rates = list;
 144
 145                 list = os_malloc(9 * sizeof(int));
 146                 if (list) {
 147                         list[0] = 60;
 148                         list[1] = 90;
 149                         list[2] = 120;
 150                         list[3] = 180;
 151                         list[4] = 240;
 152                         list[5] = 360;
 153                         list[6] = 480;
 154                         list[7] = 540;
 155                         list[8] = -1;
 156                 }
 157                 conf->supported_rates = list;
 158         }
 159
 160         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 161 #endif /* CONFIG_P2P */
 162
 163         if (ssid->ssid_len == 0) {
 164                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 165                 return -1;
 166         }
 167         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 168         bss->ssid.ssid_len = ssid->ssid_len;
 169         bss->ssid.ssid_set = 1;
 170
 171         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 172
 173         if (ssid->auth_alg)
 174                 bss->auth_algs = ssid->auth_alg;
 175
 176         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 177                 bss->wpa = ssid->proto;
 178         bss->wpa_key_mgmt = ssid->key_mgmt;
 179         bss->wpa_pairwise = ssid->pairwise_cipher;
 180         if (ssid->psk_set) {
 181                 os_free(bss->ssid.wpa_psk);
 182                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 183                 if (bss->ssid.wpa_psk == NULL)
 184                         return -1;
 185                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 186                 bss->ssid.wpa_psk->group = 1;
 187         } else if (ssid->passphrase) {
 188                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 189         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 190                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 191                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 192                 int i;
 193                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 194                         if (ssid->wep_key_len[i] == 0)
 195                                 continue;
 196                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 197                         if (wep->key[i] == NULL)
 198                                 return -1;
 199                         os_memcpy(wep->key[i], ssid->wep_key[i],
 200                                   ssid->wep_key_len[i]);
 201                         wep->len[i] = ssid->wep_key_len[i];
 202                 }
 203                 wep->idx = ssid->wep_tx_keyidx;
 204                 wep->keys_set = 1;
 205         }
 206
 207         if (ssid->ap_max_inactivity)
 208                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 209
 210         if (ssid->dtim_period)
 211                 bss->dtim_period = ssid->dtim_period;
 212
 213         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
 214                 bss->rsn_pairwise = bss->wpa_pairwise;
 215         bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
 216                                                     bss->rsn_pairwise);
 217
 218         if (bss->wpa && bss->ieee802_1x)
 219                 bss->ssid.security_policy = SECURITY_WPA;
 220         else if (bss->wpa)
 221                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 222         else if (bss->ieee802_1x) {
 223                 int cipher = WPA_CIPHER_NONE;
 224                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 225                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 226                 if (bss->default_wep_key_len)
 227                         cipher = bss->default_wep_key_len >= 13 ?
 228                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 229                 bss->wpa_group = cipher;
 230                 bss->wpa_pairwise = cipher;
 231                 bss->rsn_pairwise = cipher;
 232         } else if (bss->ssid.wep.keys_set) {
 233                 int cipher = WPA_CIPHER_WEP40;
 234                 if (bss->ssid.wep.len[0] >= 13)
 235                         cipher = WPA_CIPHER_WEP104;
 236                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 237                 bss->wpa_group = cipher;
 238                 bss->wpa_pairwise = cipher;
 239                 bss->rsn_pairwise = cipher;
 240         } else {
 241                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 242                 bss->wpa_group = WPA_CIPHER_NONE;
 243                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 244                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 245         }
 246
 247 #ifdef CONFIG_WPS
 248         /*
 249          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 250          * require user interaction to actually use it. Only the internal
 251          * Registrar is supported.
 252          */
 253         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 254             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 255                 goto no_wps;
 256 #ifdef CONFIG_WPS2
 257         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 258             (!(bss->rsn_pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 259                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 260                               * configuration */
 261 #endif /* CONFIG_WPS2 */
 262         bss->eap_server = 1;
 263
 264         if (!ssid->ignore_broadcast_ssid)
 265                 bss->wps_state = 2;
 266
 267         bss->ap_setup_locked = 2;
 268         if (wpa_s->conf->config_methods)
 269                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 270         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 271                   WPS_DEV_TYPE_LEN);
 272         if (wpa_s->conf->device_name) {
 273                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 274                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 275         }
 276         if (wpa_s->conf->manufacturer)
 277                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 278         if (wpa_s->conf->model_name)
 279                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 280         if (wpa_s->conf->model_number)
 281                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 282         if (wpa_s->conf->serial_number)
 283                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 284         if (is_nil_uuid(wpa_s->conf->uuid))
 285                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 286         else
 287                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 288         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 289         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 290 no_wps:
 291 #endif /* CONFIG_WPS */
 292
 293         if (wpa_s->max_stations &&
 294             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 295                 bss->max_num_sta = wpa_s->max_stations;
 296         else
 297                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 298
 299         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 300
 301         return 0;
 302 }
 303
 304
 305 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 306 {
 307 #ifdef CONFIG_P2P
 308         struct wpa_supplicant *wpa_s = ctx;
 309         const struct ieee80211_mgmt *mgmt;
 310         size_t hdr_len;
 311
 312         mgmt = (const struct ieee80211_mgmt *) buf;
 313         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 314         if (hdr_len > len)
 315                 return;
 316         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 317                            mgmt->u.action.category,
 318                            &mgmt->u.action.u.vs_public_action.action,
 319                            len - hdr_len, freq);
 320 #endif /* CONFIG_P2P */
 321 }
 322
 323
 324 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 325                             union wps_event_data *data)
 326 {
 327 #ifdef CONFIG_P2P
 328         struct wpa_supplicant *wpa_s = ctx;
 329
 330         if (event == WPS_EV_FAIL) {
 331                 struct wps_event_fail *fail = &data->fail;
 332
 333                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 334                     wpa_s == wpa_s->global->p2p_group_formation) {
 335                         /*
 336                          * src/ap/wps_hostapd.c has already sent this on the
 337                          * main interface, so only send on the parent interface
 338                          * here if needed.
 339                          */
 340                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 341                                 "msg=%d config_error=%d",
 342                                 fail->msg, fail->config_error);
 343                 }
 344                 wpas_p2p_wps_failed(wpa_s, fail);
 345         }
 346 #endif /* CONFIG_P2P */
 347 }
 348
 349
 350 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 351                                  int authorized, const u8 *p2p_dev_addr)
 352 {
 353         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 354 }
 355
 356
 357 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 358 {
 359 #ifdef CONFIG_P2P
 360         struct wpa_supplicant *wpa_s = ctx;
 361         const struct ieee80211_mgmt *mgmt;
 362         size_t hdr_len;
 363
 364         mgmt = (const struct ieee80211_mgmt *) buf;
 365         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 366         if (hdr_len > len)
 367                 return -1;
 368         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 369                            mgmt->u.action.category,
 370                            &mgmt->u.action.u.vs_public_action.action,
 371                            len - hdr_len, freq);
 372 #endif /* CONFIG_P2P */
 373         return 0;
 374 }
 375
 376
 377 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 378                            const u8 *bssid, const u8 *ie, size_t ie_len,
 379                            int ssi_signal)
 380 {
 381 #ifdef CONFIG_P2P
 382         struct wpa_supplicant *wpa_s = ctx;
 383         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 384                                      ssi_signal);
 385 #else /* CONFIG_P2P */
 386         return 0;
 387 #endif /* CONFIG_P2P */
 388 }
 389
 390
 391 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 392                                   const u8 *uuid_e)
 393 {
 394 #ifdef CONFIG_P2P
 395         struct wpa_supplicant *wpa_s = ctx;
 396         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 397 #endif /* CONFIG_P2P */
 398 }
 399
 400
 401 static void wpas_ap_configured_cb(void *ctx)
 402 {
 403         struct wpa_supplicant *wpa_s = ctx;
 404
 405         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 406
 407         if (wpa_s->ap_configured_cb)
 408                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 409                                         wpa_s->ap_configured_cb_data);
 410 }
 411
 412
 413 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 414                              struct wpa_ssid *ssid)
 415 {
 416         struct wpa_driver_associate_params params;
 417         struct hostapd_iface *hapd_iface;
 418         struct hostapd_config *conf;
 419         size_t i;
 420
 421         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 422                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 423                 return -1;
 424         }
 425
 426         wpa_supplicant_ap_deinit(wpa_s);
 427
 428         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 429                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 430
 431         os_memset(&params, 0, sizeof(params));
 432         params.ssid = ssid->ssid;
 433         params.ssid_len = ssid->ssid_len;
 434         switch (ssid->mode) {
 435         case WPAS_MODE_INFRA:
 436                 params.mode = IEEE80211_MODE_INFRA;
 437                 break;
 438         case WPAS_MODE_IBSS:
 439                 params.mode = IEEE80211_MODE_IBSS;
 440                 break;
 441         case WPAS_MODE_AP:
 442         case WPAS_MODE_P2P_GO:
 443         case WPAS_MODE_P2P_GROUP_FORMATION:
 444                 params.mode = IEEE80211_MODE_AP;
 445                 break;
 446         }
 447         params.freq = ssid->frequency;
 448
 449         params.wpa_proto = ssid->proto;
 450         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 451                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 452         else
 453                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 454         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 455
 456         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
 457                                                           1);
 458         if (wpa_s->pairwise_cipher < 0) {
 459                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 460                            "cipher.");
 461                 return -1;
 462         }
 463         params.pairwise_suite =
 464                 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher);
 465         params.group_suite = params.pairwise_suite;
 466
 467 #ifdef CONFIG_P2P
 468         if (ssid->mode == WPAS_MODE_P2P_GO ||
 469             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 470                 params.p2p = 1;
 471 #endif /* CONFIG_P2P */
 472
 473         if (wpa_s->parent->set_ap_uapsd)
 474                 params.uapsd = wpa_s->parent->ap_uapsd;
 475         else
 476                 params.uapsd = -1;
 477
 478         if (wpa_drv_associate(wpa_s, &params) < 0) {
 479                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 480                 return -1;
 481         }
 482
 483         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 484         if (hapd_iface == NULL)
 485                 return -1;
 486         hapd_iface->owner = wpa_s;
 487         hapd_iface->drv_flags = wpa_s->drv_flags;
 488         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 489
 490         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 491         if (conf == NULL) {
 492                 wpa_supplicant_ap_deinit(wpa_s);
 493                 return -1;
 494         }
 495
 496         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 497                   wpa_s->conf->wmm_ac_params,
 498                   sizeof(wpa_s->conf->wmm_ac_params));
 499
 500         if (params.uapsd > 0) {
 501                 conf->bss->wmm_enabled = 1;
 502                 conf->bss->wmm_uapsd = 1;
 503         }
 504
 505         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 506                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 507                 wpa_supplicant_ap_deinit(wpa_s);
 508                 return -1;
 509         }
 510
 511 #ifdef CONFIG_P2P
 512         if (ssid->mode == WPAS_MODE_P2P_GO)
 513                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 514         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 515                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 516                         P2P_GROUP_FORMATION;
 517 #endif /* CONFIG_P2P */
 518
 519         hapd_iface->num_bss = conf->num_bss;
 520         hapd_iface->bss = os_calloc(conf->num_bss,
 521                                     sizeof(struct hostapd_data *));
 522         if (hapd_iface->bss == NULL) {
 523                 wpa_supplicant_ap_deinit(wpa_s);
 524                 return -1;
 525         }
 526
 527         for (i = 0; i < conf->num_bss; i++) {
 528                 hapd_iface->bss[i] =
 529                         hostapd_alloc_bss_data(hapd_iface, conf,
 530                                                &conf->bss[i]);
 531                 if (hapd_iface->bss[i] == NULL) {
 532                         wpa_supplicant_ap_deinit(wpa_s);
 533                         return -1;
 534                 }
 535
 536                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 537                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 538                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 539                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 540                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 541                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 542                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 543                                              ap_probe_req_rx, wpa_s);
 544                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 545                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 546                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 547                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 548                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 549                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 550 #ifdef CONFIG_P2P
 551                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 552                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 553                                                                     ssid);
 554 #endif /* CONFIG_P2P */
 555                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 556                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 557         }
 558
 559         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 560         hapd_iface->bss[0]->driver = wpa_s->driver;
 561         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 562
 563         wpa_s->current_ssid = ssid;
 564         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 565         wpa_s->assoc_freq = ssid->frequency;
 566
 567         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 568                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 569                 wpa_supplicant_ap_deinit(wpa_s);
 570                 return -1;
 571         }
 572
 573         return 0;
 574 }
 575
 576
 577 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 578 {
 579 #ifdef CONFIG_WPS
 580         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 581 #endif /* CONFIG_WPS */
 582
 583         if (wpa_s->ap_iface == NULL)
 584                 return;
 585
 586         wpa_s->current_ssid = NULL;
 587         wpa_s->assoc_freq = 0;
 588 #ifdef CONFIG_P2P
 589         if (wpa_s->ap_iface->bss)
 590                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 591         wpas_p2p_group_deinit(wpa_s);
 592 #endif /* CONFIG_P2P */
 593         hostapd_interface_deinit(wpa_s->ap_iface);
 594         hostapd_interface_free(wpa_s->ap_iface);
 595         wpa_s->ap_iface = NULL;
 596         wpa_drv_deinit_ap(wpa_s);
 597 }
 598
 599
 600 void ap_tx_status(void *ctx, const u8 *addr,
 601                   const u8 *buf, size_t len, int ack)
 602 {
 603 #ifdef NEED_AP_MLME
 604         struct wpa_supplicant *wpa_s = ctx;
 605         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 606 #endif /* NEED_AP_MLME */
 607 }
 608
 609
 610 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 611                         const u8 *data, size_t len, int ack)
 612 {
 613 #ifdef NEED_AP_MLME
 614         struct wpa_supplicant *wpa_s = ctx;
 615         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 616 #endif /* NEED_AP_MLME */
 617 }
 618
 619
 620 void ap_client_poll_ok(void *ctx, const u8 *addr)
 621 {
 622 #ifdef NEED_AP_MLME
 623         struct wpa_supplicant *wpa_s = ctx;
 624         if (wpa_s->ap_iface)
 625                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 626 #endif /* NEED_AP_MLME */
 627 }
 628
 629
 630 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 631 {
 632 #ifdef NEED_AP_MLME
 633         struct wpa_supplicant *wpa_s = ctx;
 634         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 635 #endif /* NEED_AP_MLME */
 636 }
 637
 638
 639 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 640 {
 641 #ifdef NEED_AP_MLME
 642         struct wpa_supplicant *wpa_s = ctx;
 643         struct hostapd_frame_info fi;
 644         os_memset(&fi, 0, sizeof(fi));
 645         fi.datarate = rx_mgmt->datarate;
 646         fi.ssi_signal = rx_mgmt->ssi_signal;
 647         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 648                         rx_mgmt->frame_len, &fi);
 649 #endif /* NEED_AP_MLME */
 650 }
 651
 652
 653 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 654 {
 655 #ifdef NEED_AP_MLME
 656         struct wpa_supplicant *wpa_s = ctx;
 657         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 658 #endif /* NEED_AP_MLME */
 659 }
 660
 661
 662 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 663                                 const u8 *src_addr, const u8 *buf, size_t len)
 664 {
 665         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 666 }
 667
 668
 669 #ifdef CONFIG_WPS
 670
 671 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 672                               const u8 *p2p_dev_addr)
 673 {
 674         if (!wpa_s->ap_iface)
 675                 return -1;
 676         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 677                                          p2p_dev_addr);
 678 }
 679
 680
 681 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 682 {
 683         struct wps_registrar *reg;
 684         int reg_sel = 0, wps_sta = 0;
 685
 686         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 687                 return -1;
 688
 689         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 690         reg_sel = wps_registrar_wps_cancel(reg);
 691         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 692                                   ap_sta_wps_cancel, NULL);
 693
 694         if (!reg_sel && !wps_sta) {
 695                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 696                            "time");
 697                 return -1;
 698         }
 699
 700         /*
 701          * There are 2 cases to return wps cancel as success:
 702          * 1. When wps cancel was initiated but no connection has been
 703          *    established with client yet.
 704          * 2. Client is in the middle of exchanging WPS messages.
 705          */
 706
 707         return 0;
 708 }
 709
 710
 711 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 712                               const char *pin, char *buf, size_t buflen,
 713                               int timeout)
 714 {
 715         int ret, ret_len = 0;
 716
 717         if (!wpa_s->ap_iface)
 718                 return -1;
 719
 720         if (pin == NULL) {
 721                 unsigned int rpin = wps_generate_pin();
 722                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 723                 pin = buf;
 724         } else
 725                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 726
 727         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 728                                   timeout);
 729         if (ret)
 730                 return -1;
 731         return ret_len;
 732 }
 733
 734
 735 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 736 {
 737         struct wpa_supplicant *wpa_s = eloop_data;
 738         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 739         wpas_wps_ap_pin_disable(wpa_s);
 740 }
 741
 742
 743 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 744 {
 745         struct hostapd_data *hapd;
 746
 747         if (wpa_s->ap_iface == NULL)
 748                 return;
 749         hapd = wpa_s->ap_iface->bss[0];
 750         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 751         hapd->ap_pin_failures = 0;
 752         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 753         if (timeout > 0)
 754                 eloop_register_timeout(timeout, 0,
 755                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 756 }
 757
 758
 759 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 760 {
 761         struct hostapd_data *hapd;
 762
 763         if (wpa_s->ap_iface == NULL)
 764                 return;
 765         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 766         hapd = wpa_s->ap_iface->bss[0];
 767         os_free(hapd->conf->ap_pin);
 768         hapd->conf->ap_pin = NULL;
 769         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 770 }
 771
 772
 773 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 774 {
 775         struct hostapd_data *hapd;
 776         unsigned int pin;
 777         char pin_txt[9];
 778
 779         if (wpa_s->ap_iface == NULL)
 780                 return NULL;
 781         hapd = wpa_s->ap_iface->bss[0];
 782         pin = wps_generate_pin();
 783         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 784         os_free(hapd->conf->ap_pin);
 785         hapd->conf->ap_pin = os_strdup(pin_txt);
 786         if (hapd->conf->ap_pin == NULL)
 787                 return NULL;
 788         wpas_wps_ap_pin_enable(wpa_s, timeout);
 789
 790         return hapd->conf->ap_pin;
 791 }
 792
 793
 794 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 795 {
 796         struct hostapd_data *hapd;
 797         if (wpa_s->ap_iface == NULL)
 798                 return NULL;
 799         hapd = wpa_s->ap_iface->bss[0];
 800         return hapd->conf->ap_pin;
 801 }
 802
 803
 804 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 805                         int timeout)
 806 {
 807         struct hostapd_data *hapd;
 808         char pin_txt[9];
 809         int ret;
 810
 811         if (wpa_s->ap_iface == NULL)
 812                 return -1;
 813         hapd = wpa_s->ap_iface->bss[0];
 814         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 815         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 816                 return -1;
 817         os_free(hapd->conf->ap_pin);
 818         hapd->conf->ap_pin = os_strdup(pin_txt);
 819         if (hapd->conf->ap_pin == NULL)
 820                 return -1;
 821         wpas_wps_ap_pin_enable(wpa_s, timeout);
 822
 823         return 0;
 824 }
 825
 826
 827 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 828 {
 829         struct hostapd_data *hapd;
 830
 831         if (wpa_s->ap_iface == NULL)
 832                 return;
 833         hapd = wpa_s->ap_iface->bss[0];
 834
 835         /*
 836          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 837          * PIN if this happens multiple times to slow down brute force attacks.
 838          */
 839         hapd->ap_pin_failures++;
 840         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 841                    hapd->ap_pin_failures);
 842         if (hapd->ap_pin_failures < 3)
 843                 return;
 844
 845         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 846         hapd->ap_pin_failures = 0;
 847         os_free(hapd->conf->ap_pin);
 848         hapd->conf->ap_pin = NULL;
 849 }
 850
 851
 852 #ifdef CONFIG_WPS_NFC
 853
 854 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
 855                                              int ndef)
 856 {
 857         struct hostapd_data *hapd;
 858
 859         if (wpa_s->ap_iface == NULL)
 860                 return NULL;
 861         hapd = wpa_s->ap_iface->bss[0];
 862         return hostapd_wps_nfc_config_token(hapd, ndef);
 863 }
 864
 865
 866 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
 867                                              int ndef)
 868 {
 869         struct hostapd_data *hapd;
 870
 871         if (wpa_s->ap_iface == NULL)
 872                 return NULL;
 873         hapd = wpa_s->ap_iface->bss[0];
 874         return hostapd_wps_nfc_hs_cr(hapd, ndef);
 875 }
 876
 877 #endif /* CONFIG_WPS_NFC */
 878
 879 #endif /* CONFIG_WPS */
 880
 881
 882 #ifdef CONFIG_CTRL_IFACE
 883
 884 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 885                             char *buf, size_t buflen)
 886 {
 887         if (wpa_s->ap_iface == NULL)
 888                 return -1;
 889         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 890                                             buf, buflen);
 891 }
 892
 893
 894 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 895                       char *buf, size_t buflen)
 896 {
 897         if (wpa_s->ap_iface == NULL)
 898                 return -1;
 899         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 900                                       buf, buflen);
 901 }
 902
 903
 904 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 905                            char *buf, size_t buflen)
 906 {
 907         if (wpa_s->ap_iface == NULL)
 908                 return -1;
 909         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 910                                            buf, buflen);
 911 }
 912
 913
 914 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 915                                    const char *txtaddr)
 916 {
 917         if (wpa_s->ap_iface == NULL)
 918                 return -1;
 919         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 920                                                txtaddr);
 921 }
 922
 923
 924 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 925                                      const char *txtaddr)
 926 {
 927         if (wpa_s->ap_iface == NULL)
 928                 return -1;
 929         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 930                                                  txtaddr);
 931 }
 932
 933
 934 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 935                                  size_t buflen, int verbose)
 936 {
 937         char *pos = buf, *end = buf + buflen;
 938         int ret;
 939         struct hostapd_bss_config *conf;
 940
 941         if (wpa_s->ap_iface == NULL)
 942                 return -1;
 943
 944         conf = wpa_s->ap_iface->bss[0]->conf;
 945         if (conf->wpa == 0)
 946                 return 0;
 947
 948         ret = os_snprintf(pos, end - pos,
 949                           "pairwise_cipher=%s\n"
 950                           "group_cipher=%s\n"
 951                           "key_mgmt=%s\n",
 952                           wpa_cipher_txt(conf->rsn_pairwise),
 953                           wpa_cipher_txt(conf->wpa_group),
 954                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 955                                            conf->wpa));
 956         if (ret < 0 || ret >= end - pos)
 957                 return pos - buf;
 958         pos += ret;
 959         return pos - buf;
 960 }
 961
 962 #endif /* CONFIG_CTRL_IFACE */
 963
 964
 965 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 966 {
 967         struct hostapd_iface *iface = wpa_s->ap_iface;
 968         struct wpa_ssid *ssid = wpa_s->current_ssid;
 969         struct hostapd_data *hapd;
 970
 971         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 972             ssid->mode == WPAS_MODE_INFRA ||
 973             ssid->mode == WPAS_MODE_IBSS)
 974                 return -1;
 975
 976 #ifdef CONFIG_P2P
 977         if (ssid->mode == WPAS_MODE_P2P_GO)
 978                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 979         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 980                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 981                         P2P_GROUP_FORMATION;
 982 #endif /* CONFIG_P2P */
 983
 984         hapd = iface->bss[0];
 985         if (hapd->drv_priv == NULL)
 986                 return -1;
 987         ieee802_11_set_beacons(iface);
 988         hostapd_set_ap_wps_ie(hapd);
 989
 990         return 0;
 991 }
 992
 993
 994 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
 995                        int offset)
 996 {
 997         if (!wpa_s->ap_iface)
 998                 return;
 999
1000         wpa_s->assoc_freq = freq;
1001         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht, offset);
1002 }
1003
1004
1005 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1006                                       const u8 *addr)
1007 {
1008         struct hostapd_data *hapd;
1009         struct hostapd_bss_config *conf;
1010
1011         if (!wpa_s->ap_iface)
1012                 return -1;
1013
1014         if (addr)
1015                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1016                            MAC2STR(addr));
1017         else
1018                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1019
1020         hapd = wpa_s->ap_iface->bss[0];
1021         conf = hapd->conf;
1022
1023         os_free(conf->accept_mac);
1024         conf->accept_mac = NULL;
1025         conf->num_accept_mac = 0;
1026         os_free(conf->deny_mac);
1027         conf->deny_mac = NULL;
1028         conf->num_deny_mac = 0;
1029
1030         if (addr == NULL) {
1031                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1032                 return 0;
1033         }
1034
1035         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1036         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1037         if (conf->accept_mac == NULL)
1038                 return -1;
1039         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1040         conf->num_accept_mac = 1;
1041
1042         return 0;
1043 }