wpa_supplicant/ap.c

   1 /*
   2  * WPA Supplicant - Basic AP mode support routines
   3  * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2009, Atheros Communications
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include "utils/includes.h"
  11
  12 #include "utils/common.h"
  13 #include "utils/eloop.h"
  14 #include "utils/uuid.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/wpa_ctrl.h"
  17 #include "ap/hostapd.h"
  18 #include "ap/ap_config.h"
  19 #include "ap/ap_drv_ops.h"
  20 #ifdef NEED_AP_MLME
  21 #include "ap/ieee802_11.h"
  22 #endif /* NEED_AP_MLME */
  23 #include "ap/beacon.h"
  24 #include "ap/ieee802_1x.h"
  25 #include "ap/wps_hostapd.h"
  26 #include "ap/ctrl_iface_ap.h"
  27 #include "wps/wps.h"
  28 #include "common/ieee802_11_defs.h"
  29 #include "config_ssid.h"
  30 #include "config.h"
  31 #include "wpa_supplicant_i.h"
  32 #include "driver_i.h"
  33 #include "p2p_supplicant.h"
  34 #include "ap.h"
  35 #include "ap/sta_info.h"
  36 #include "notify.h"
  37
  38
  39 #ifdef CONFIG_WPS
  40 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  41 #endif /* CONFIG_WPS */
  42
  43
  44 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
  45                                   struct wpa_ssid *ssid,
  46                                   struct hostapd_config *conf)
  47 {
  48         struct hostapd_bss_config *bss = &conf->bss[0];
  49         int pairwise;
  50
  51         conf->driver = wpa_s->driver;
  52
  53         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  54
  55         if (ssid->frequency == 0) {
  56                 /* default channel 11 */
  57                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  58                 conf->channel = 11;
  59         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
  60                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  61                 conf->channel = (ssid->frequency - 2407) / 5;
  62         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
  63                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
  64                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
  65                 conf->channel = (ssid->frequency - 5000) / 5;
  66         } else {
  67                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  68                            ssid->frequency);
  69                 return -1;
  70         }
  71
  72         /* TODO: enable HT40 if driver supports it;
  73          * drop to 11b if driver does not support 11g */
  74
  75 #ifdef CONFIG_IEEE80211N
  76         /*
  77          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  78          * and a mask of allowed capabilities within conf->ht_capab.
  79          * Using default config settings for: conf->ht_op_mode_fixed,
  80          * conf->secondary_channel, conf->require_ht
  81          */
  82         if (wpa_s->hw.modes) {
  83                 struct hostapd_hw_modes *mode = NULL;
  84                 int i;
  85                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
  86                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
  87                                 mode = &wpa_s->hw.modes[i];
  88                                 break;
  89                         }
  90                 }
  91                 if (mode && mode->ht_capab) {
  92                         conf->ieee80211n = 1;
  93
  94                         /*
  95                          * white-list capabilities that won't cause issues
  96                          * to connecting stations, while leaving the current
  97                          * capabilities intact (currently disabled SMPS).
  98                          */
  99                         conf->ht_capab |= mode->ht_capab &
 100                                 (HT_CAP_INFO_GREEN_FIELD |
 101                                  HT_CAP_INFO_SHORT_GI20MHZ |
 102                                  HT_CAP_INFO_SHORT_GI40MHZ |
 103                                  HT_CAP_INFO_RX_STBC_MASK |
 104                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 105                 }
 106         }
 107 #endif /* CONFIG_IEEE80211N */
 108
 109 #ifdef CONFIG_P2P
 110         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 111                 /* Remove 802.11b rates from supported and basic rate sets */
 112                 int *list = os_malloc(4 * sizeof(int));
 113                 if (list) {
 114                         list[0] = 60;
 115                         list[1] = 120;
 116                         list[2] = 240;
 117                         list[3] = -1;
 118                 }
 119                 conf->basic_rates = list;
 120
 121                 list = os_malloc(9 * sizeof(int));
 122                 if (list) {
 123                         list[0] = 60;
 124                         list[1] = 90;
 125                         list[2] = 120;
 126                         list[3] = 180;
 127                         list[4] = 240;
 128                         list[5] = 360;
 129                         list[6] = 480;
 130                         list[7] = 540;
 131                         list[8] = -1;
 132                 }
 133                 conf->supported_rates = list;
 134         }
 135
 136         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 137 #endif /* CONFIG_P2P */
 138
 139         if (ssid->ssid_len == 0) {
 140                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 141                 return -1;
 142         }
 143         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 144         bss->ssid.ssid[ssid->ssid_len] = '\0';
 145         bss->ssid.ssid_len = ssid->ssid_len;
 146         bss->ssid.ssid_set = 1;
 147
 148         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 149
 150         if (ssid->auth_alg)
 151                 bss->auth_algs = ssid->auth_alg;
 152
 153         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 154                 bss->wpa = ssid->proto;
 155         bss->wpa_key_mgmt = ssid->key_mgmt;
 156         bss->wpa_pairwise = ssid->pairwise_cipher;
 157         if (ssid->passphrase) {
 158                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 159         } else if (ssid->psk_set) {
 160                 os_free(bss->ssid.wpa_psk);
 161                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 162                 if (bss->ssid.wpa_psk == NULL)
 163                         return -1;
 164                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 165                 bss->ssid.wpa_psk->group = 1;
 166         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 167                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 168                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 169                 int i;
 170                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 171                         if (ssid->wep_key_len[i] == 0)
 172                                 continue;
 173                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 174                         if (wep->key[i] == NULL)
 175                                 return -1;
 176                         os_memcpy(wep->key[i], ssid->wep_key[i],
 177                                   ssid->wep_key_len[i]);
 178                         wep->len[i] = ssid->wep_key_len[i];
 179                 }
 180                 wep->idx = ssid->wep_tx_keyidx;
 181                 wep->keys_set = 1;
 182         }
 183
 184         if (ssid->ap_max_inactivity)
 185                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 186
 187         /* Select group cipher based on the enabled pairwise cipher suites */
 188         pairwise = 0;
 189         if (bss->wpa & 1)
 190                 pairwise |= bss->wpa_pairwise;
 191         if (bss->wpa & 2) {
 192                 if (bss->rsn_pairwise == 0)
 193                         bss->rsn_pairwise = bss->wpa_pairwise;
 194                 pairwise |= bss->rsn_pairwise;
 195         }
 196         if (pairwise & WPA_CIPHER_TKIP)
 197                 bss->wpa_group = WPA_CIPHER_TKIP;
 198         else
 199                 bss->wpa_group = WPA_CIPHER_CCMP;
 200
 201         if (bss->wpa && bss->ieee802_1x)
 202                 bss->ssid.security_policy = SECURITY_WPA;
 203         else if (bss->wpa)
 204                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 205         else if (bss->ieee802_1x) {
 206                 int cipher = WPA_CIPHER_NONE;
 207                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 208                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 209                 if (bss->default_wep_key_len)
 210                         cipher = bss->default_wep_key_len >= 13 ?
 211                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 212                 bss->wpa_group = cipher;
 213                 bss->wpa_pairwise = cipher;
 214                 bss->rsn_pairwise = cipher;
 215         } else if (bss->ssid.wep.keys_set) {
 216                 int cipher = WPA_CIPHER_WEP40;
 217                 if (bss->ssid.wep.len[0] >= 13)
 218                         cipher = WPA_CIPHER_WEP104;
 219                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 220                 bss->wpa_group = cipher;
 221                 bss->wpa_pairwise = cipher;
 222                 bss->rsn_pairwise = cipher;
 223         } else {
 224                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 225                 bss->wpa_group = WPA_CIPHER_NONE;
 226                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 227                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 228         }
 229
 230 #ifdef CONFIG_WPS
 231         /*
 232          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 233          * require user interaction to actually use it. Only the internal
 234          * Registrar is supported.
 235          */
 236         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 237             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 238                 goto no_wps;
 239 #ifdef CONFIG_WPS2
 240         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 241             (!(pairwise & WPA_CIPHER_CCMP) || !(bss->wpa & 2)))
 242                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 243                               * configuration */
 244 #endif /* CONFIG_WPS2 */
 245         bss->eap_server = 1;
 246
 247         if (!ssid->ignore_broadcast_ssid)
 248                 bss->wps_state = 2;
 249
 250         bss->ap_setup_locked = 2;
 251         if (wpa_s->conf->config_methods)
 252                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 253         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 254                   WPS_DEV_TYPE_LEN);
 255         if (wpa_s->conf->device_name) {
 256                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 257                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 258         }
 259         if (wpa_s->conf->manufacturer)
 260                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 261         if (wpa_s->conf->model_name)
 262                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 263         if (wpa_s->conf->model_number)
 264                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 265         if (wpa_s->conf->serial_number)
 266                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 267         if (is_nil_uuid(wpa_s->conf->uuid))
 268                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 269         else
 270                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 271         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 272 no_wps:
 273 #endif /* CONFIG_WPS */
 274
 275         if (wpa_s->max_stations &&
 276             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 277                 bss->max_num_sta = wpa_s->max_stations;
 278         else
 279                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 280
 281         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 282
 283         return 0;
 284 }
 285
 286
 287 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 288 {
 289 #ifdef CONFIG_P2P
 290         struct wpa_supplicant *wpa_s = ctx;
 291         const struct ieee80211_mgmt *mgmt;
 292         size_t hdr_len;
 293
 294         mgmt = (const struct ieee80211_mgmt *) buf;
 295         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 296         if (hdr_len > len)
 297                 return;
 298         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 299                            mgmt->u.action.category,
 300                            &mgmt->u.action.u.vs_public_action.action,
 301                            len - hdr_len, freq);
 302 #endif /* CONFIG_P2P */
 303 }
 304
 305
 306 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 307                             union wps_event_data *data)
 308 {
 309 #ifdef CONFIG_P2P
 310         struct wpa_supplicant *wpa_s = ctx;
 311
 312         if (event == WPS_EV_FAIL) {
 313                 struct wps_event_fail *fail = &data->fail;
 314
 315                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 316                     wpa_s == wpa_s->global->p2p_group_formation) {
 317                         /*
 318                          * src/ap/wps_hostapd.c has already sent this on the
 319                          * main interface, so only send on the parent interface
 320                          * here if needed.
 321                          */
 322                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 323                                 "msg=%d config_error=%d",
 324                                 fail->msg, fail->config_error);
 325                 }
 326                 wpas_p2p_wps_failed(wpa_s, fail);
 327         }
 328 #endif /* CONFIG_P2P */
 329 }
 330
 331
 332 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 333                                  int authorized, const u8 *p2p_dev_addr)
 334 {
 335         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 336 }
 337
 338
 339 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 340 {
 341 #ifdef CONFIG_P2P
 342         struct wpa_supplicant *wpa_s = ctx;
 343         const struct ieee80211_mgmt *mgmt;
 344         size_t hdr_len;
 345
 346         mgmt = (const struct ieee80211_mgmt *) buf;
 347         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 348         if (hdr_len > len)
 349                 return -1;
 350         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 351                            mgmt->u.action.category,
 352                            &mgmt->u.action.u.vs_public_action.action,
 353                            len - hdr_len, freq);
 354 #endif /* CONFIG_P2P */
 355         return 0;
 356 }
 357
 358
 359 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 360                            const u8 *bssid, const u8 *ie, size_t ie_len)
 361 {
 362 #ifdef CONFIG_P2P
 363         struct wpa_supplicant *wpa_s = ctx;
 364         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len);
 365 #else /* CONFIG_P2P */
 366         return 0;
 367 #endif /* CONFIG_P2P */
 368 }
 369
 370
 371 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 372                                   const u8 *uuid_e)
 373 {
 374 #ifdef CONFIG_P2P
 375         struct wpa_supplicant *wpa_s = ctx;
 376         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 377 #endif /* CONFIG_P2P */
 378 }
 379
 380
 381 static void wpas_ap_configured_cb(void *ctx)
 382 {
 383         struct wpa_supplicant *wpa_s = ctx;
 384
 385         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 386
 387         if (wpa_s->ap_configured_cb)
 388                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 389                                         wpa_s->ap_configured_cb_data);
 390 }
 391
 392
 393 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 394                              struct wpa_ssid *ssid)
 395 {
 396         struct wpa_driver_associate_params params;
 397         struct hostapd_iface *hapd_iface;
 398         struct hostapd_config *conf;
 399         size_t i;
 400
 401         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 402                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 403                 return -1;
 404         }
 405
 406         wpa_supplicant_ap_deinit(wpa_s);
 407
 408         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 409                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 410
 411         os_memset(&params, 0, sizeof(params));
 412         params.ssid = ssid->ssid;
 413         params.ssid_len = ssid->ssid_len;
 414         switch (ssid->mode) {
 415         case WPAS_MODE_INFRA:
 416                 params.mode = IEEE80211_MODE_INFRA;
 417                 break;
 418         case WPAS_MODE_IBSS:
 419                 params.mode = IEEE80211_MODE_IBSS;
 420                 break;
 421         case WPAS_MODE_AP:
 422         case WPAS_MODE_P2P_GO:
 423         case WPAS_MODE_P2P_GROUP_FORMATION:
 424                 params.mode = IEEE80211_MODE_AP;
 425                 break;
 426         }
 427         params.freq = ssid->frequency;
 428
 429         params.wpa_proto = ssid->proto;
 430         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 431                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 432         else
 433                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 434         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 435
 436         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 437                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 438         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 439                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 440         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 441                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 442         else {
 443                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 444                            "cipher.");
 445                 return -1;
 446         }
 447         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 448         params.group_suite = params.pairwise_suite;
 449
 450 #ifdef CONFIG_P2P
 451         if (ssid->mode == WPAS_MODE_P2P_GO ||
 452             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 453                 params.p2p = 1;
 454 #endif /* CONFIG_P2P */
 455
 456         if (wpa_s->parent->set_ap_uapsd)
 457                 params.uapsd = wpa_s->parent->ap_uapsd;
 458         else
 459                 params.uapsd = -1;
 460
 461         if (wpa_drv_associate(wpa_s, &params) < 0) {
 462                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 463                 return -1;
 464         }
 465
 466         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 467         if (hapd_iface == NULL)
 468                 return -1;
 469         hapd_iface->owner = wpa_s;
 470         hapd_iface->drv_flags = wpa_s->drv_flags;
 471         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 472
 473         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 474         if (conf == NULL) {
 475                 wpa_supplicant_ap_deinit(wpa_s);
 476                 return -1;
 477         }
 478
 479         if (params.uapsd > 0) {
 480                 conf->bss->wmm_enabled = 1;
 481                 conf->bss->wmm_uapsd = 1;
 482         }
 483
 484         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 485                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 486                 wpa_supplicant_ap_deinit(wpa_s);
 487                 return -1;
 488         }
 489
 490 #ifdef CONFIG_P2P
 491         if (ssid->mode == WPAS_MODE_P2P_GO)
 492                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 493         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 494                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 495                         P2P_GROUP_FORMATION;
 496 #endif /* CONFIG_P2P */
 497
 498         hapd_iface->num_bss = conf->num_bss;
 499         hapd_iface->bss = os_zalloc(conf->num_bss *
 500                                     sizeof(struct hostapd_data *));
 501         if (hapd_iface->bss == NULL) {
 502                 wpa_supplicant_ap_deinit(wpa_s);
 503                 return -1;
 504         }
 505
 506         for (i = 0; i < conf->num_bss; i++) {
 507                 hapd_iface->bss[i] =
 508                         hostapd_alloc_bss_data(hapd_iface, conf,
 509                                                &conf->bss[i]);
 510                 if (hapd_iface->bss[i] == NULL) {
 511                         wpa_supplicant_ap_deinit(wpa_s);
 512                         return -1;
 513                 }
 514
 515                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 516                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 517                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 518                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 519                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 520                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 521                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 522                                              ap_probe_req_rx, wpa_s);
 523                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 524                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 525                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 526                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 527                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 528                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 529 #ifdef CONFIG_P2P
 530                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 531                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
 532                         wpa_s, ssid->p2p_persistent_group,
 533                         ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
 534 #endif /* CONFIG_P2P */
 535                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 536                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 537         }
 538
 539         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 540         hapd_iface->bss[0]->driver = wpa_s->driver;
 541         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 542
 543         wpa_s->current_ssid = ssid;
 544         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 545         wpa_s->assoc_freq = ssid->frequency;
 546
 547         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 548                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 549                 wpa_supplicant_ap_deinit(wpa_s);
 550                 return -1;
 551         }
 552
 553         return 0;
 554 }
 555
 556
 557 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 558 {
 559 #ifdef CONFIG_WPS
 560         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 561 #endif /* CONFIG_WPS */
 562
 563         if (wpa_s->ap_iface == NULL)
 564                 return;
 565
 566         wpa_s->current_ssid = NULL;
 567         wpa_s->assoc_freq = 0;
 568         wpa_s->reassociated_connection = 0;
 569 #ifdef CONFIG_P2P
 570         if (wpa_s->ap_iface->bss)
 571                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 572         wpas_p2p_group_deinit(wpa_s);
 573 #endif /* CONFIG_P2P */
 574         hostapd_interface_deinit(wpa_s->ap_iface);
 575         hostapd_interface_free(wpa_s->ap_iface);
 576         wpa_s->ap_iface = NULL;
 577         wpa_drv_deinit_ap(wpa_s);
 578 }
 579
 580
 581 void ap_tx_status(void *ctx, const u8 *addr,
 582                   const u8 *buf, size_t len, int ack)
 583 {
 584 #ifdef NEED_AP_MLME
 585         struct wpa_supplicant *wpa_s = ctx;
 586         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 587 #endif /* NEED_AP_MLME */
 588 }
 589
 590
 591 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 592                         const u8 *data, size_t len, int ack)
 593 {
 594 #ifdef NEED_AP_MLME
 595         struct wpa_supplicant *wpa_s = ctx;
 596         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 597 #endif /* NEED_AP_MLME */
 598 }
 599
 600
 601 void ap_client_poll_ok(void *ctx, const u8 *addr)
 602 {
 603 #ifdef NEED_AP_MLME
 604         struct wpa_supplicant *wpa_s = ctx;
 605         if (wpa_s->ap_iface)
 606                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 607 #endif /* NEED_AP_MLME */
 608 }
 609
 610
 611 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 612 {
 613 #ifdef NEED_AP_MLME
 614         struct wpa_supplicant *wpa_s = ctx;
 615         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 616 #endif /* NEED_AP_MLME */
 617 }
 618
 619
 620 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 621 {
 622 #ifdef NEED_AP_MLME
 623         struct wpa_supplicant *wpa_s = ctx;
 624         struct hostapd_frame_info fi;
 625         os_memset(&fi, 0, sizeof(fi));
 626         fi.datarate = rx_mgmt->datarate;
 627         fi.ssi_signal = rx_mgmt->ssi_signal;
 628         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 629                         rx_mgmt->frame_len, &fi);
 630 #endif /* NEED_AP_MLME */
 631 }
 632
 633
 634 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 635 {
 636 #ifdef NEED_AP_MLME
 637         struct wpa_supplicant *wpa_s = ctx;
 638         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 639 #endif /* NEED_AP_MLME */
 640 }
 641
 642
 643 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 644                                 const u8 *src_addr, const u8 *buf, size_t len)
 645 {
 646         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 647 }
 648
 649
 650 #ifdef CONFIG_WPS
 651
 652 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 653                               const u8 *p2p_dev_addr)
 654 {
 655         if (!wpa_s->ap_iface)
 656                 return -1;
 657         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 658                                          p2p_dev_addr);
 659 }
 660
 661
 662 static int wpa_supplicant_ap_wps_sta_cancel(struct hostapd_data *hapd,
 663                                             struct sta_info *sta, void *ctx)
 664 {
 665         if (sta && (sta->flags & WLAN_STA_WPS)) {
 666                 ap_sta_deauthenticate(hapd, sta,
 667                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 668                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 669                            __func__, MAC2STR(sta->addr));
 670                 return 1;
 671         }
 672
 673         return 0;
 674 }
 675
 676
 677 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 678 {
 679         struct wps_registrar *reg;
 680         int reg_sel = 0, wps_sta = 0;
 681
 682         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 683                 return -1;
 684
 685         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 686         reg_sel = wps_registrar_wps_cancel(reg);
 687         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 688                                   wpa_supplicant_ap_wps_sta_cancel, NULL);
 689
 690         if (!reg_sel && !wps_sta) {
 691                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 692                            "time");
 693                 return -1;
 694         }
 695
 696         /*
 697          * There are 2 cases to return wps cancel as success:
 698          * 1. When wps cancel was initiated but no connection has been
 699          *    established with client yet.
 700          * 2. Client is in the middle of exchanging WPS messages.
 701          */
 702
 703         return 0;
 704 }
 705
 706
 707 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 708                               const char *pin, char *buf, size_t buflen)
 709 {
 710         int ret, ret_len = 0;
 711
 712         if (!wpa_s->ap_iface)
 713                 return -1;
 714
 715         if (pin == NULL) {
 716                 unsigned int rpin = wps_generate_pin();
 717                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 718                 pin = buf;
 719         } else
 720                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 721
 722         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 723                                   0);
 724         if (ret)
 725                 return -1;
 726         return ret_len;
 727 }
 728
 729
 730 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 731 {
 732         struct wpa_supplicant *wpa_s = eloop_data;
 733         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 734         wpas_wps_ap_pin_disable(wpa_s);
 735 }
 736
 737
 738 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 739 {
 740         struct hostapd_data *hapd;
 741
 742         if (wpa_s->ap_iface == NULL)
 743                 return;
 744         hapd = wpa_s->ap_iface->bss[0];
 745         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 746         hapd->ap_pin_failures = 0;
 747         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 748         if (timeout > 0)
 749                 eloop_register_timeout(timeout, 0,
 750                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 751 }
 752
 753
 754 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 755 {
 756         struct hostapd_data *hapd;
 757
 758         if (wpa_s->ap_iface == NULL)
 759                 return;
 760         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 761         hapd = wpa_s->ap_iface->bss[0];
 762         os_free(hapd->conf->ap_pin);
 763         hapd->conf->ap_pin = NULL;
 764         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 765 }
 766
 767
 768 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 769 {
 770         struct hostapd_data *hapd;
 771         unsigned int pin;
 772         char pin_txt[9];
 773
 774         if (wpa_s->ap_iface == NULL)
 775                 return NULL;
 776         hapd = wpa_s->ap_iface->bss[0];
 777         pin = wps_generate_pin();
 778         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 779         os_free(hapd->conf->ap_pin);
 780         hapd->conf->ap_pin = os_strdup(pin_txt);
 781         if (hapd->conf->ap_pin == NULL)
 782                 return NULL;
 783         wpas_wps_ap_pin_enable(wpa_s, timeout);
 784
 785         return hapd->conf->ap_pin;
 786 }
 787
 788
 789 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 790 {
 791         struct hostapd_data *hapd;
 792         if (wpa_s->ap_iface == NULL)
 793                 return NULL;
 794         hapd = wpa_s->ap_iface->bss[0];
 795         return hapd->conf->ap_pin;
 796 }
 797
 798
 799 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 800                         int timeout)
 801 {
 802         struct hostapd_data *hapd;
 803         char pin_txt[9];
 804         int ret;
 805
 806         if (wpa_s->ap_iface == NULL)
 807                 return -1;
 808         hapd = wpa_s->ap_iface->bss[0];
 809         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 810         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 811                 return -1;
 812         os_free(hapd->conf->ap_pin);
 813         hapd->conf->ap_pin = os_strdup(pin_txt);
 814         if (hapd->conf->ap_pin == NULL)
 815                 return -1;
 816         wpas_wps_ap_pin_enable(wpa_s, timeout);
 817
 818         return 0;
 819 }
 820
 821
 822 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 823 {
 824         struct hostapd_data *hapd;
 825
 826         if (wpa_s->ap_iface == NULL)
 827                 return;
 828         hapd = wpa_s->ap_iface->bss[0];
 829
 830         /*
 831          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 832          * PIN if this happens multiple times to slow down brute force attacks.
 833          */
 834         hapd->ap_pin_failures++;
 835         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 836                    hapd->ap_pin_failures);
 837         if (hapd->ap_pin_failures < 3)
 838                 return;
 839
 840         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 841         hapd->ap_pin_failures = 0;
 842         os_free(hapd->conf->ap_pin);
 843         hapd->conf->ap_pin = NULL;
 844 }
 845
 846 #endif /* CONFIG_WPS */
 847
 848
 849 #ifdef CONFIG_CTRL_IFACE
 850
 851 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 852                             char *buf, size_t buflen)
 853 {
 854         if (wpa_s->ap_iface == NULL)
 855                 return -1;
 856         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 857                                             buf, buflen);
 858 }
 859
 860
 861 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 862                       char *buf, size_t buflen)
 863 {
 864         if (wpa_s->ap_iface == NULL)
 865                 return -1;
 866         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 867                                       buf, buflen);
 868 }
 869
 870
 871 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 872                            char *buf, size_t buflen)
 873 {
 874         if (wpa_s->ap_iface == NULL)
 875                 return -1;
 876         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 877                                            buf, buflen);
 878 }
 879
 880
 881 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 882                                    const char *txtaddr)
 883 {
 884         if (wpa_s->ap_iface == NULL)
 885                 return -1;
 886         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 887                                                txtaddr);
 888 }
 889
 890
 891 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 892                                      const char *txtaddr)
 893 {
 894         if (wpa_s->ap_iface == NULL)
 895                 return -1;
 896         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 897                                                  txtaddr);
 898 }
 899
 900
 901 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 902                                  size_t buflen, int verbose)
 903 {
 904         char *pos = buf, *end = buf + buflen;
 905         int ret;
 906         struct hostapd_bss_config *conf;
 907
 908         if (wpa_s->ap_iface == NULL)
 909                 return -1;
 910
 911         conf = wpa_s->ap_iface->bss[0]->conf;
 912         if (conf->wpa == 0)
 913                 return 0;
 914
 915         ret = os_snprintf(pos, end - pos,
 916                           "pairwise_cipher=%s\n"
 917                           "group_cipher=%s\n"
 918                           "key_mgmt=%s\n",
 919                           wpa_cipher_txt(conf->rsn_pairwise),
 920                           wpa_cipher_txt(conf->wpa_group),
 921                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 922                                            conf->wpa));
 923         if (ret < 0 || ret >= end - pos)
 924                 return pos - buf;
 925         pos += ret;
 926         return pos - buf;
 927 }
 928
 929 #endif /* CONFIG_CTRL_IFACE */
 930
 931
 932 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 933 {
 934         struct hostapd_iface *iface = wpa_s->ap_iface;
 935         struct wpa_ssid *ssid = wpa_s->current_ssid;
 936         struct hostapd_data *hapd;
 937
 938         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 939             ssid->mode == WPAS_MODE_INFRA ||
 940             ssid->mode == WPAS_MODE_IBSS)
 941                 return -1;
 942
 943 #ifdef CONFIG_P2P
 944         if (ssid->mode == WPAS_MODE_P2P_GO)
 945                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 946         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 947                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 948                         P2P_GROUP_FORMATION;
 949 #endif /* CONFIG_P2P */
 950
 951         hapd = iface->bss[0];
 952         if (hapd->drv_priv == NULL)
 953                 return -1;
 954         ieee802_11_set_beacons(iface);
 955         hostapd_set_ap_wps_ie(hapd);
 956
 957         return 0;
 958 }
 959
 960
 961 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 962                                       const u8 *addr)
 963 {
 964         struct hostapd_data *hapd;
 965         struct hostapd_bss_config *conf;
 966
 967         if (!wpa_s->ap_iface)
 968                 return -1;
 969
 970         if (addr)
 971                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 972                            MAC2STR(addr));
 973         else
 974                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 975
 976         hapd = wpa_s->ap_iface->bss[0];
 977         conf = hapd->conf;
 978
 979         os_free(conf->accept_mac);
 980         conf->accept_mac = NULL;
 981         conf->num_accept_mac = 0;
 982         os_free(conf->deny_mac);
 983         conf->deny_mac = NULL;
 984         conf->num_deny_mac = 0;
 985
 986         if (addr == NULL) {
 987                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 988                 return 0;
 989         }
 990
 991         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 992         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 993         if (conf->accept_mac == NULL)
 994                 return -1;
 995         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 996         conf->num_accept_mac = 1;
 997
 998         return 0;
 999 }