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                            int ssi_signal)
 362 {
 363 #ifdef CONFIG_P2P
 364         struct wpa_supplicant *wpa_s = ctx;
 365         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 366                                      ssi_signal);
 367 #else /* CONFIG_P2P */
 368         return 0;
 369 #endif /* CONFIG_P2P */
 370 }
 371
 372
 373 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 374                                   const u8 *uuid_e)
 375 {
 376 #ifdef CONFIG_P2P
 377         struct wpa_supplicant *wpa_s = ctx;
 378         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 379 #endif /* CONFIG_P2P */
 380 }
 381
 382
 383 static void wpas_ap_configured_cb(void *ctx)
 384 {
 385         struct wpa_supplicant *wpa_s = ctx;
 386
 387         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 388
 389         if (wpa_s->ap_configured_cb)
 390                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 391                                         wpa_s->ap_configured_cb_data);
 392 }
 393
 394
 395 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 396                              struct wpa_ssid *ssid)
 397 {
 398         struct wpa_driver_associate_params params;
 399         struct hostapd_iface *hapd_iface;
 400         struct hostapd_config *conf;
 401         size_t i;
 402
 403         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 404                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 405                 return -1;
 406         }
 407
 408         wpa_supplicant_ap_deinit(wpa_s);
 409
 410         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 411                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 412
 413         os_memset(&params, 0, sizeof(params));
 414         params.ssid = ssid->ssid;
 415         params.ssid_len = ssid->ssid_len;
 416         switch (ssid->mode) {
 417         case WPAS_MODE_INFRA:
 418                 params.mode = IEEE80211_MODE_INFRA;
 419                 break;
 420         case WPAS_MODE_IBSS:
 421                 params.mode = IEEE80211_MODE_IBSS;
 422                 break;
 423         case WPAS_MODE_AP:
 424         case WPAS_MODE_P2P_GO:
 425         case WPAS_MODE_P2P_GROUP_FORMATION:
 426                 params.mode = IEEE80211_MODE_AP;
 427                 break;
 428         }
 429         params.freq = ssid->frequency;
 430
 431         params.wpa_proto = ssid->proto;
 432         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 433                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 434         else
 435                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 436         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 437
 438         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 439                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 440         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 441                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 442         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 443                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 444         else {
 445                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 446                            "cipher.");
 447                 return -1;
 448         }
 449         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 450         params.group_suite = params.pairwise_suite;
 451
 452 #ifdef CONFIG_P2P
 453         if (ssid->mode == WPAS_MODE_P2P_GO ||
 454             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 455                 params.p2p = 1;
 456 #endif /* CONFIG_P2P */
 457
 458         if (wpa_s->parent->set_ap_uapsd)
 459                 params.uapsd = wpa_s->parent->ap_uapsd;
 460         else
 461                 params.uapsd = -1;
 462
 463         if (wpa_drv_associate(wpa_s, &params) < 0) {
 464                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 465                 return -1;
 466         }
 467
 468         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 469         if (hapd_iface == NULL)
 470                 return -1;
 471         hapd_iface->owner = wpa_s;
 472         hapd_iface->drv_flags = wpa_s->drv_flags;
 473         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 474
 475         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 476         if (conf == NULL) {
 477                 wpa_supplicant_ap_deinit(wpa_s);
 478                 return -1;
 479         }
 480
 481         if (params.uapsd > 0) {
 482                 conf->bss->wmm_enabled = 1;
 483                 conf->bss->wmm_uapsd = 1;
 484         }
 485
 486         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 487                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 488                 wpa_supplicant_ap_deinit(wpa_s);
 489                 return -1;
 490         }
 491
 492 #ifdef CONFIG_P2P
 493         if (ssid->mode == WPAS_MODE_P2P_GO)
 494                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 495         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 496                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 497                         P2P_GROUP_FORMATION;
 498 #endif /* CONFIG_P2P */
 499
 500         hapd_iface->num_bss = conf->num_bss;
 501         hapd_iface->bss = os_zalloc(conf->num_bss *
 502                                     sizeof(struct hostapd_data *));
 503         if (hapd_iface->bss == NULL) {
 504                 wpa_supplicant_ap_deinit(wpa_s);
 505                 return -1;
 506         }
 507
 508         for (i = 0; i < conf->num_bss; i++) {
 509                 hapd_iface->bss[i] =
 510                         hostapd_alloc_bss_data(hapd_iface, conf,
 511                                                &conf->bss[i]);
 512                 if (hapd_iface->bss[i] == NULL) {
 513                         wpa_supplicant_ap_deinit(wpa_s);
 514                         return -1;
 515                 }
 516
 517                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 518                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 519                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 520                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 521                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 522                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 523                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 524                                              ap_probe_req_rx, wpa_s);
 525                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 526                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 527                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 528                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 529                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 530                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 531 #ifdef CONFIG_P2P
 532                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 533                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
 534                         wpa_s, ssid->p2p_persistent_group,
 535                         ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
 536 #endif /* CONFIG_P2P */
 537                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 538                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 539         }
 540
 541         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 542         hapd_iface->bss[0]->driver = wpa_s->driver;
 543         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 544
 545         wpa_s->current_ssid = ssid;
 546         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 547         wpa_s->assoc_freq = ssid->frequency;
 548
 549         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 550                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 551                 wpa_supplicant_ap_deinit(wpa_s);
 552                 return -1;
 553         }
 554
 555         return 0;
 556 }
 557
 558
 559 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 560 {
 561 #ifdef CONFIG_WPS
 562         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 563 #endif /* CONFIG_WPS */
 564
 565         if (wpa_s->ap_iface == NULL)
 566                 return;
 567
 568         wpa_s->current_ssid = NULL;
 569         wpa_s->assoc_freq = 0;
 570         wpa_s->reassociated_connection = 0;
 571 #ifdef CONFIG_P2P
 572         if (wpa_s->ap_iface->bss)
 573                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 574         wpas_p2p_group_deinit(wpa_s);
 575 #endif /* CONFIG_P2P */
 576         hostapd_interface_deinit(wpa_s->ap_iface);
 577         hostapd_interface_free(wpa_s->ap_iface);
 578         wpa_s->ap_iface = NULL;
 579         wpa_drv_deinit_ap(wpa_s);
 580 }
 581
 582
 583 void ap_tx_status(void *ctx, const u8 *addr,
 584                   const u8 *buf, size_t len, int ack)
 585 {
 586 #ifdef NEED_AP_MLME
 587         struct wpa_supplicant *wpa_s = ctx;
 588         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 589 #endif /* NEED_AP_MLME */
 590 }
 591
 592
 593 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 594                         const u8 *data, size_t len, int ack)
 595 {
 596 #ifdef NEED_AP_MLME
 597         struct wpa_supplicant *wpa_s = ctx;
 598         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 599 #endif /* NEED_AP_MLME */
 600 }
 601
 602
 603 void ap_client_poll_ok(void *ctx, const u8 *addr)
 604 {
 605 #ifdef NEED_AP_MLME
 606         struct wpa_supplicant *wpa_s = ctx;
 607         if (wpa_s->ap_iface)
 608                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 609 #endif /* NEED_AP_MLME */
 610 }
 611
 612
 613 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 614 {
 615 #ifdef NEED_AP_MLME
 616         struct wpa_supplicant *wpa_s = ctx;
 617         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 618 #endif /* NEED_AP_MLME */
 619 }
 620
 621
 622 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 623 {
 624 #ifdef NEED_AP_MLME
 625         struct wpa_supplicant *wpa_s = ctx;
 626         struct hostapd_frame_info fi;
 627         os_memset(&fi, 0, sizeof(fi));
 628         fi.datarate = rx_mgmt->datarate;
 629         fi.ssi_signal = rx_mgmt->ssi_signal;
 630         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 631                         rx_mgmt->frame_len, &fi);
 632 #endif /* NEED_AP_MLME */
 633 }
 634
 635
 636 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 637 {
 638 #ifdef NEED_AP_MLME
 639         struct wpa_supplicant *wpa_s = ctx;
 640         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 641 #endif /* NEED_AP_MLME */
 642 }
 643
 644
 645 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 646                                 const u8 *src_addr, const u8 *buf, size_t len)
 647 {
 648         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 649 }
 650
 651
 652 #ifdef CONFIG_WPS
 653
 654 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 655                               const u8 *p2p_dev_addr)
 656 {
 657         if (!wpa_s->ap_iface)
 658                 return -1;
 659         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 660                                          p2p_dev_addr);
 661 }
 662
 663
 664 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 665 {
 666         struct wps_registrar *reg;
 667         int reg_sel = 0, wps_sta = 0;
 668
 669         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 670                 return -1;
 671
 672         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 673         reg_sel = wps_registrar_wps_cancel(reg);
 674         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 675                                   ap_sta_wps_cancel, NULL);
 676
 677         if (!reg_sel && !wps_sta) {
 678                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 679                            "time");
 680                 return -1;
 681         }
 682
 683         /*
 684          * There are 2 cases to return wps cancel as success:
 685          * 1. When wps cancel was initiated but no connection has been
 686          *    established with client yet.
 687          * 2. Client is in the middle of exchanging WPS messages.
 688          */
 689
 690         return 0;
 691 }
 692
 693
 694 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 695                               const char *pin, char *buf, size_t buflen)
 696 {
 697         int ret, ret_len = 0;
 698
 699         if (!wpa_s->ap_iface)
 700                 return -1;
 701
 702         if (pin == NULL) {
 703                 unsigned int rpin = wps_generate_pin();
 704                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 705                 pin = buf;
 706         } else
 707                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 708
 709         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 710                                   0);
 711         if (ret)
 712                 return -1;
 713         return ret_len;
 714 }
 715
 716
 717 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 718 {
 719         struct wpa_supplicant *wpa_s = eloop_data;
 720         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 721         wpas_wps_ap_pin_disable(wpa_s);
 722 }
 723
 724
 725 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 726 {
 727         struct hostapd_data *hapd;
 728
 729         if (wpa_s->ap_iface == NULL)
 730                 return;
 731         hapd = wpa_s->ap_iface->bss[0];
 732         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 733         hapd->ap_pin_failures = 0;
 734         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 735         if (timeout > 0)
 736                 eloop_register_timeout(timeout, 0,
 737                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 738 }
 739
 740
 741 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 742 {
 743         struct hostapd_data *hapd;
 744
 745         if (wpa_s->ap_iface == NULL)
 746                 return;
 747         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 748         hapd = wpa_s->ap_iface->bss[0];
 749         os_free(hapd->conf->ap_pin);
 750         hapd->conf->ap_pin = NULL;
 751         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 752 }
 753
 754
 755 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 756 {
 757         struct hostapd_data *hapd;
 758         unsigned int pin;
 759         char pin_txt[9];
 760
 761         if (wpa_s->ap_iface == NULL)
 762                 return NULL;
 763         hapd = wpa_s->ap_iface->bss[0];
 764         pin = wps_generate_pin();
 765         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 766         os_free(hapd->conf->ap_pin);
 767         hapd->conf->ap_pin = os_strdup(pin_txt);
 768         if (hapd->conf->ap_pin == NULL)
 769                 return NULL;
 770         wpas_wps_ap_pin_enable(wpa_s, timeout);
 771
 772         return hapd->conf->ap_pin;
 773 }
 774
 775
 776 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 777 {
 778         struct hostapd_data *hapd;
 779         if (wpa_s->ap_iface == NULL)
 780                 return NULL;
 781         hapd = wpa_s->ap_iface->bss[0];
 782         return hapd->conf->ap_pin;
 783 }
 784
 785
 786 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 787                         int timeout)
 788 {
 789         struct hostapd_data *hapd;
 790         char pin_txt[9];
 791         int ret;
 792
 793         if (wpa_s->ap_iface == NULL)
 794                 return -1;
 795         hapd = wpa_s->ap_iface->bss[0];
 796         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 797         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 798                 return -1;
 799         os_free(hapd->conf->ap_pin);
 800         hapd->conf->ap_pin = os_strdup(pin_txt);
 801         if (hapd->conf->ap_pin == NULL)
 802                 return -1;
 803         wpas_wps_ap_pin_enable(wpa_s, timeout);
 804
 805         return 0;
 806 }
 807
 808
 809 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 810 {
 811         struct hostapd_data *hapd;
 812
 813         if (wpa_s->ap_iface == NULL)
 814                 return;
 815         hapd = wpa_s->ap_iface->bss[0];
 816
 817         /*
 818          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 819          * PIN if this happens multiple times to slow down brute force attacks.
 820          */
 821         hapd->ap_pin_failures++;
 822         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 823                    hapd->ap_pin_failures);
 824         if (hapd->ap_pin_failures < 3)
 825                 return;
 826
 827         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 828         hapd->ap_pin_failures = 0;
 829         os_free(hapd->conf->ap_pin);
 830         hapd->conf->ap_pin = NULL;
 831 }
 832
 833 #endif /* CONFIG_WPS */
 834
 835
 836 #ifdef CONFIG_CTRL_IFACE
 837
 838 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 839                             char *buf, size_t buflen)
 840 {
 841         if (wpa_s->ap_iface == NULL)
 842                 return -1;
 843         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 844                                             buf, buflen);
 845 }
 846
 847
 848 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 849                       char *buf, size_t buflen)
 850 {
 851         if (wpa_s->ap_iface == NULL)
 852                 return -1;
 853         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 854                                       buf, buflen);
 855 }
 856
 857
 858 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 859                            char *buf, size_t buflen)
 860 {
 861         if (wpa_s->ap_iface == NULL)
 862                 return -1;
 863         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 864                                            buf, buflen);
 865 }
 866
 867
 868 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
 869                                    const char *txtaddr)
 870 {
 871         if (wpa_s->ap_iface == NULL)
 872                 return -1;
 873         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
 874                                                txtaddr);
 875 }
 876
 877
 878 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
 879                                      const char *txtaddr)
 880 {
 881         if (wpa_s->ap_iface == NULL)
 882                 return -1;
 883         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
 884                                                  txtaddr);
 885 }
 886
 887
 888 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 889                                  size_t buflen, int verbose)
 890 {
 891         char *pos = buf, *end = buf + buflen;
 892         int ret;
 893         struct hostapd_bss_config *conf;
 894
 895         if (wpa_s->ap_iface == NULL)
 896                 return -1;
 897
 898         conf = wpa_s->ap_iface->bss[0]->conf;
 899         if (conf->wpa == 0)
 900                 return 0;
 901
 902         ret = os_snprintf(pos, end - pos,
 903                           "pairwise_cipher=%s\n"
 904                           "group_cipher=%s\n"
 905                           "key_mgmt=%s\n",
 906                           wpa_cipher_txt(conf->rsn_pairwise),
 907                           wpa_cipher_txt(conf->wpa_group),
 908                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 909                                            conf->wpa));
 910         if (ret < 0 || ret >= end - pos)
 911                 return pos - buf;
 912         pos += ret;
 913         return pos - buf;
 914 }
 915
 916 #endif /* CONFIG_CTRL_IFACE */
 917
 918
 919 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 920 {
 921         struct hostapd_iface *iface = wpa_s->ap_iface;
 922         struct wpa_ssid *ssid = wpa_s->current_ssid;
 923         struct hostapd_data *hapd;
 924
 925         if (ssid == NULL || wpa_s->ap_iface == NULL ||
 926             ssid->mode == WPAS_MODE_INFRA ||
 927             ssid->mode == WPAS_MODE_IBSS)
 928                 return -1;
 929
 930 #ifdef CONFIG_P2P
 931         if (ssid->mode == WPAS_MODE_P2P_GO)
 932                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 933         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 934                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 935                         P2P_GROUP_FORMATION;
 936 #endif /* CONFIG_P2P */
 937
 938         hapd = iface->bss[0];
 939         if (hapd->drv_priv == NULL)
 940                 return -1;
 941         ieee802_11_set_beacons(iface);
 942         hostapd_set_ap_wps_ie(hapd);
 943
 944         return 0;
 945 }
 946
 947
 948 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 949                                       const u8 *addr)
 950 {
 951         struct hostapd_data *hapd;
 952         struct hostapd_bss_config *conf;
 953
 954         if (!wpa_s->ap_iface)
 955                 return -1;
 956
 957         if (addr)
 958                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 959                            MAC2STR(addr));
 960         else
 961                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 962
 963         hapd = wpa_s->ap_iface->bss[0];
 964         conf = hapd->conf;
 965
 966         os_free(conf->accept_mac);
 967         conf->accept_mac = NULL;
 968         conf->num_accept_mac = 0;
 969         os_free(conf->deny_mac);
 970         conf->deny_mac = NULL;
 971         conf->num_deny_mac = 0;
 972
 973         if (addr == NULL) {
 974                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 975                 return 0;
 976         }
 977
 978         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 979         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 980         if (conf->accept_mac == NULL)
 981                 return -1;
 982         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 983         conf->num_accept_mac = 1;
 984
 985         return 0;
 986 }