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 program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  */
  15
  16 #include "utils/includes.h"
  17
  18 #include "utils/common.h"
  19 #include "utils/eloop.h"
  20 #include "utils/uuid.h"
  21 #include "common/ieee802_11_defs.h"
  22 #include "common/wpa_ctrl.h"
  23 #include "ap/hostapd.h"
  24 #include "ap/ap_config.h"
  25 #include "ap/ap_drv_ops.h"
  26 #ifdef NEED_AP_MLME
  27 #include "ap/ieee802_11.h"
  28 #endif /* NEED_AP_MLME */
  29 #include "ap/beacon.h"
  30 #include "ap/ieee802_1x.h"
  31 #include "ap/wps_hostapd.h"
  32 #include "ap/ctrl_iface_ap.h"
  33 #include "eap_common/eap_defs.h"
  34 #include "eap_server/eap_methods.h"
  35 #include "eap_common/eap_wsc_common.h"
  36 #include "wps/wps.h"
  37 #include "common/ieee802_11_defs.h"
  38 #include "config_ssid.h"
  39 #include "config.h"
  40 #include "wpa_supplicant_i.h"
  41 #include "driver_i.h"
  42 #include "p2p_supplicant.h"
  43 #include "ap.h"
  44 #include "ap/sta_info.h"
  45 #include "notify.h"
  46
  47
  48 #ifdef CONFIG_WPS
  49 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  50 #endif /* CONFIG_WPS */
  51
  52
  53 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
  54                                   struct wpa_ssid *ssid,
  55                                   struct hostapd_config *conf)
  56 {
  57         struct hostapd_bss_config *bss = &conf->bss[0];
  58         int pairwise;
  59 #ifdef CONFIG_IEEE80211N
  60         struct hostapd_hw_modes *modes;
  61         u16 num_modes, flags;
  62 #endif /* CONFIG_IEEE80211N */
  63
  64         conf->driver = wpa_s->driver;
  65
  66         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  67
  68         if (ssid->frequency == 0) {
  69                 /* default channel 11 */
  70                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  71                 conf->channel = 11;
  72         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
  73                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  74                 conf->channel = (ssid->frequency - 2407) / 5;
  75         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
  76                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
  77                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
  78                 conf->channel = (ssid->frequency - 5000) / 5;
  79         } else {
  80                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  81                            ssid->frequency);
  82                 return -1;
  83         }
  84
  85         /* TODO: enable HT40 if driver supports it;
  86          * drop to 11b if driver does not support 11g */
  87
  88 #ifdef CONFIG_IEEE80211N
  89         /*
  90          * Enable HT20 if the driver supports it, by setting conf->ieee80211n.
  91          * Using default config settings for: conf->ht_op_mode_fixed,
  92          * conf->ht_capab, conf->secondary_channel, conf->require_ht
  93          */
  94         modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
  95         if (modes) {
  96                 struct hostapd_hw_modes *mode = NULL;
  97                 int i;
  98                 for (i = 0; i < num_modes; i++) {
  99                         if (modes[i].mode == conf->hw_mode) {
 100                                 mode = &modes[i];
 101                                 break;
 102                         }
 103                 }
 104                 if (mode && mode->ht_capab)
 105                         conf->ieee80211n = 1;
 106                 ieee80211_sta_free_hw_features(modes, num_modes);
 107                 modes = NULL;
 108         }
 109 #endif /* CONFIG_IEEE80211N */
 110
 111 #ifdef CONFIG_P2P
 112         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 113                 /* Remove 802.11b rates from supported and basic rate sets */
 114                 int *list = os_malloc(4 * sizeof(int));
 115                 if (list) {
 116                         list[0] = 60;
 117                         list[1] = 120;
 118                         list[2] = 240;
 119                         list[3] = -1;
 120                 }
 121                 conf->basic_rates = list;
 122
 123                 list = os_malloc(9 * sizeof(int));
 124                 if (list) {
 125                         list[0] = 60;
 126                         list[1] = 90;
 127                         list[2] = 120;
 128                         list[3] = 180;
 129                         list[4] = 240;
 130                         list[5] = 360;
 131                         list[6] = 480;
 132                         list[7] = 540;
 133                         list[8] = -1;
 134                 }
 135                 conf->supported_rates = list;
 136         }
 137
 138         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 139 #endif /* CONFIG_P2P */
 140
 141         if (ssid->ssid_len == 0) {
 142                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 143                 return -1;
 144         }
 145         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 146         bss->ssid.ssid[ssid->ssid_len] = '\0';
 147         bss->ssid.ssid_len = ssid->ssid_len;
 148         bss->ssid.ssid_set = 1;
 149
 150         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 151                 bss->wpa = ssid->proto;
 152         bss->wpa_key_mgmt = ssid->key_mgmt;
 153         bss->wpa_pairwise = ssid->pairwise_cipher;
 154         if (ssid->passphrase) {
 155                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 156         } else if (ssid->psk_set) {
 157                 os_free(bss->ssid.wpa_psk);
 158                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 159                 if (bss->ssid.wpa_psk == NULL)
 160                         return -1;
 161                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 162                 bss->ssid.wpa_psk->group = 1;
 163         }
 164
 165         /* Select group cipher based on the enabled pairwise cipher suites */
 166         pairwise = 0;
 167         if (bss->wpa & 1)
 168                 pairwise |= bss->wpa_pairwise;
 169         if (bss->wpa & 2) {
 170                 if (bss->rsn_pairwise == 0)
 171                         bss->rsn_pairwise = bss->wpa_pairwise;
 172                 pairwise |= bss->rsn_pairwise;
 173         }
 174         if (pairwise & WPA_CIPHER_TKIP)
 175                 bss->wpa_group = WPA_CIPHER_TKIP;
 176         else
 177                 bss->wpa_group = WPA_CIPHER_CCMP;
 178
 179         if (bss->wpa && bss->ieee802_1x)
 180                 bss->ssid.security_policy = SECURITY_WPA;
 181         else if (bss->wpa)
 182                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 183         else if (bss->ieee802_1x) {
 184                 int cipher = WPA_CIPHER_NONE;
 185                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 186                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 187                 if (bss->default_wep_key_len)
 188                         cipher = bss->default_wep_key_len >= 13 ?
 189                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 190                 bss->wpa_group = cipher;
 191                 bss->wpa_pairwise = cipher;
 192                 bss->rsn_pairwise = cipher;
 193         } else if (bss->ssid.wep.keys_set) {
 194                 int cipher = WPA_CIPHER_WEP40;
 195                 if (bss->ssid.wep.len[0] >= 13)
 196                         cipher = WPA_CIPHER_WEP104;
 197                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 198                 bss->wpa_group = cipher;
 199                 bss->wpa_pairwise = cipher;
 200                 bss->rsn_pairwise = cipher;
 201         } else {
 202                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 203                 bss->wpa_group = WPA_CIPHER_NONE;
 204                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 205                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 206         }
 207
 208 #ifdef CONFIG_WPS
 209         /*
 210          * Enable WPS by default, but require user interaction to actually use
 211          * it. Only the internal Registrar is supported.
 212          */
 213         bss->eap_server = 1;
 214         bss->wps_state = 2;
 215         bss->ap_setup_locked = 2;
 216         if (wpa_s->conf->config_methods)
 217                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 218         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 219                   WPS_DEV_TYPE_LEN);
 220         if (wpa_s->conf->device_name) {
 221                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 222                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 223         }
 224         if (wpa_s->conf->manufacturer)
 225                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 226         if (wpa_s->conf->model_name)
 227                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 228         if (wpa_s->conf->model_number)
 229                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 230         if (wpa_s->conf->serial_number)
 231                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 232         if (is_nil_uuid(wpa_s->conf->uuid))
 233                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 234         else
 235                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 236         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 237 #endif /* CONFIG_WPS */
 238
 239         if (wpa_s->max_stations &&
 240             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 241                 bss->max_num_sta = wpa_s->max_stations;
 242         else
 243                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 244
 245         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 246
 247         return 0;
 248 }
 249
 250
 251 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 252 {
 253 #ifdef CONFIG_P2P
 254         struct wpa_supplicant *wpa_s = ctx;
 255         const struct ieee80211_mgmt *mgmt;
 256         size_t hdr_len;
 257
 258         mgmt = (const struct ieee80211_mgmt *) buf;
 259         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 260         if (hdr_len > len)
 261                 return;
 262         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 263                            mgmt->u.action.category,
 264                            &mgmt->u.action.u.vs_public_action.action,
 265                            len - hdr_len, freq);
 266 #endif /* CONFIG_P2P */
 267 }
 268
 269
 270 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 271                             union wps_event_data *data)
 272 {
 273 #ifdef CONFIG_P2P
 274         struct wpa_supplicant *wpa_s = ctx;
 275
 276         if (event == WPS_EV_FAIL) {
 277                 struct wps_event_fail *fail = &data->fail;
 278
 279                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 280                     wpa_s == wpa_s->global->p2p_group_formation) {
 281                         /*
 282                          * src/ap/wps_hostapd.c has already sent this on the
 283                          * main interface, so only send on the parent interface
 284                          * here if needed.
 285                          */
 286                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 287                                 "msg=%d config_error=%d",
 288                                 fail->msg, fail->config_error);
 289                 }
 290                 wpas_p2p_wps_failed(wpa_s, fail);
 291         }
 292 #endif /* CONFIG_P2P */
 293 }
 294
 295
 296 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 297                                  int authorized)
 298 {
 299         wpas_notify_sta_authorized(ctx, mac_addr, authorized);
 300 }
 301
 302
 303 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 304 {
 305 #ifdef CONFIG_P2P
 306         struct wpa_supplicant *wpa_s = ctx;
 307         const struct ieee80211_mgmt *mgmt;
 308         size_t hdr_len;
 309
 310         mgmt = (const struct ieee80211_mgmt *) buf;
 311         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 312         if (hdr_len > len)
 313                 return -1;
 314         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 315                            mgmt->u.action.category,
 316                            &mgmt->u.action.u.vs_public_action.action,
 317                            len - hdr_len, freq);
 318 #endif /* CONFIG_P2P */
 319         return 0;
 320 }
 321
 322
 323 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 324                            const u8 *bssid, const u8 *ie, size_t ie_len)
 325 {
 326 #ifdef CONFIG_P2P
 327         struct wpa_supplicant *wpa_s = ctx;
 328         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len);
 329 #else /* CONFIG_P2P */
 330         return 0;
 331 #endif /* CONFIG_P2P */
 332 }
 333
 334
 335 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 336                                   const u8 *uuid_e)
 337 {
 338 #ifdef CONFIG_P2P
 339         struct wpa_supplicant *wpa_s = ctx;
 340         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 341 #endif /* CONFIG_P2P */
 342 }
 343
 344
 345 static void wpas_ap_configured_cb(void *ctx)
 346 {
 347         struct wpa_supplicant *wpa_s = ctx;
 348
 349         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 350
 351         if (wpa_s->ap_configured_cb)
 352                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 353                                         wpa_s->ap_configured_cb_data);
 354 }
 355
 356
 357 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 358                              struct wpa_ssid *ssid)
 359 {
 360         struct wpa_driver_associate_params params;
 361         struct hostapd_iface *hapd_iface;
 362         struct hostapd_config *conf;
 363         size_t i;
 364
 365         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 366                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 367                 return -1;
 368         }
 369
 370         wpa_supplicant_ap_deinit(wpa_s);
 371
 372         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 373                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 374
 375         os_memset(&params, 0, sizeof(params));
 376         params.ssid = ssid->ssid;
 377         params.ssid_len = ssid->ssid_len;
 378         switch (ssid->mode) {
 379         case WPAS_MODE_INFRA:
 380                 params.mode = IEEE80211_MODE_INFRA;
 381                 break;
 382         case WPAS_MODE_IBSS:
 383                 params.mode = IEEE80211_MODE_IBSS;
 384                 break;
 385         case WPAS_MODE_AP:
 386         case WPAS_MODE_P2P_GO:
 387         case WPAS_MODE_P2P_GROUP_FORMATION:
 388                 params.mode = IEEE80211_MODE_AP;
 389                 break;
 390         }
 391         params.freq = ssid->frequency;
 392
 393         params.wpa_proto = ssid->proto;
 394         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 395                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 396         else
 397                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 398         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 399
 400         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 401                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 402         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 403                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 404         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 405                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 406         else {
 407                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 408                            "cipher.");
 409                 return -1;
 410         }
 411         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 412         params.group_suite = params.pairwise_suite;
 413
 414 #ifdef CONFIG_P2P
 415         if (ssid->mode == WPAS_MODE_P2P_GO ||
 416             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 417                 params.p2p = 1;
 418         wpa_drv_set_intra_bss(wpa_s, wpa_s->conf->p2p_intra_bss);
 419 #endif /* CONFIG_P2P */
 420
 421         if (wpa_s->parent->set_ap_uapsd)
 422                 params.uapsd = wpa_s->parent->ap_uapsd;
 423         else
 424                 params.uapsd = -1;
 425
 426         if (wpa_drv_associate(wpa_s, &params) < 0) {
 427                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 428                 return -1;
 429         }
 430
 431         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 432         if (hapd_iface == NULL)
 433                 return -1;
 434         hapd_iface->owner = wpa_s;
 435
 436         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 437         if (conf == NULL) {
 438                 wpa_supplicant_ap_deinit(wpa_s);
 439                 return -1;
 440         }
 441
 442         if (params.uapsd > 0) {
 443                 conf->bss->wmm_enabled = 1;
 444                 conf->bss->wmm_uapsd = 1;
 445         }
 446
 447         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 448                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 449                 wpa_supplicant_ap_deinit(wpa_s);
 450                 return -1;
 451         }
 452
 453 #ifdef CONFIG_P2P
 454         if (ssid->mode == WPAS_MODE_P2P_GO)
 455                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 456         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 457                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 458                         P2P_GROUP_FORMATION;
 459 #endif /* CONFIG_P2P */
 460
 461         hapd_iface->num_bss = conf->num_bss;
 462         hapd_iface->bss = os_zalloc(conf->num_bss *
 463                                     sizeof(struct hostapd_data *));
 464         if (hapd_iface->bss == NULL) {
 465                 wpa_supplicant_ap_deinit(wpa_s);
 466                 return -1;
 467         }
 468
 469         for (i = 0; i < conf->num_bss; i++) {
 470                 hapd_iface->bss[i] =
 471                         hostapd_alloc_bss_data(hapd_iface, conf,
 472                                                &conf->bss[i]);
 473                 if (hapd_iface->bss[i] == NULL) {
 474                         wpa_supplicant_ap_deinit(wpa_s);
 475                         return -1;
 476                 }
 477
 478                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 479                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 480                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 481                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 482                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 483                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 484                                              ap_probe_req_rx, wpa_s);
 485                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 486                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 487                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 488                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 489                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 490                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 491 #ifdef CONFIG_P2P
 492                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 493                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
 494                         wpa_s, ssid->p2p_persistent_group,
 495                         ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
 496 #endif /* CONFIG_P2P */
 497                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 498                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 499         }
 500
 501         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 502         hapd_iface->bss[0]->driver = wpa_s->driver;
 503         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 504
 505         wpa_s->current_ssid = ssid;
 506         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 507         wpa_s->assoc_freq = ssid->frequency;
 508
 509         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 510                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 511                 wpa_supplicant_ap_deinit(wpa_s);
 512                 return -1;
 513         }
 514
 515         return 0;
 516 }
 517
 518
 519 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 520 {
 521 #ifdef CONFIG_WPS
 522         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 523 #endif /* CONFIG_WPS */
 524
 525         if (wpa_s->ap_iface == NULL)
 526                 return;
 527
 528         wpa_s->current_ssid = NULL;
 529         wpa_s->assoc_freq = 0;
 530         wpa_s->reassociated_connection = 0;
 531 #ifdef CONFIG_P2P
 532         if (wpa_s->ap_iface->bss)
 533                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 534         wpas_p2p_group_deinit(wpa_s);
 535 #endif /* CONFIG_P2P */
 536         hostapd_interface_deinit(wpa_s->ap_iface);
 537         hostapd_interface_free(wpa_s->ap_iface);
 538         wpa_s->ap_iface = NULL;
 539         wpa_drv_deinit_ap(wpa_s);
 540 }
 541
 542
 543 void ap_tx_status(void *ctx, const u8 *addr,
 544                   const u8 *buf, size_t len, int ack)
 545 {
 546 #ifdef NEED_AP_MLME
 547         struct wpa_supplicant *wpa_s = ctx;
 548         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 549 #endif /* NEED_AP_MLME */
 550 }
 551
 552
 553 void ap_rx_from_unknown_sta(void *ctx, const u8 *frame, size_t len)
 554 {
 555 #ifdef NEED_AP_MLME
 556         struct wpa_supplicant *wpa_s = ctx;
 557         const struct ieee80211_hdr *hdr =
 558                 (const struct ieee80211_hdr *) frame;
 559         u16 fc = le_to_host16(hdr->frame_control);
 560         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], hdr->addr2,
 561                                    (fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) ==
 562                                    (WLAN_FC_TODS | WLAN_FC_FROMDS));
 563 #endif /* NEED_AP_MLME */
 564 }
 565
 566
 567 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 568 {
 569 #ifdef NEED_AP_MLME
 570         struct wpa_supplicant *wpa_s = ctx;
 571         struct hostapd_frame_info fi;
 572         os_memset(&fi, 0, sizeof(fi));
 573         fi.datarate = rx_mgmt->datarate;
 574         fi.ssi_signal = rx_mgmt->ssi_signal;
 575         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 576                         rx_mgmt->frame_len, &fi);
 577 #endif /* NEED_AP_MLME */
 578 }
 579
 580
 581 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 582 {
 583 #ifdef NEED_AP_MLME
 584         struct wpa_supplicant *wpa_s = ctx;
 585         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 586 #endif /* NEED_AP_MLME */
 587 }
 588
 589
 590 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 591                                 const u8 *src_addr, const u8 *buf, size_t len)
 592 {
 593         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 594 }
 595
 596
 597 #ifdef CONFIG_WPS
 598
 599 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 600                               const u8 *p2p_dev_addr)
 601 {
 602         if (!wpa_s->ap_iface)
 603                 return -1;
 604         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 605                                          p2p_dev_addr);
 606 }
 607
 608
 609 static int wpa_supplicant_ap_wps_sta_cancel(struct hostapd_data *hapd,
 610                                             struct sta_info *sta, void *ctx)
 611 {
 612         if (sta && (sta->flags & WLAN_STA_WPS)) {
 613                 ap_sta_deauthenticate(hapd, sta,
 614                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 615                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 616                            __func__, MAC2STR(sta->addr));
 617                 return 1;
 618         }
 619
 620         return 0;
 621 }
 622
 623
 624 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 625 {
 626         struct wps_registrar *reg;
 627         int reg_sel = 0, wps_sta = 0;
 628
 629         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 630                 return -1;
 631
 632         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 633         reg_sel = wps_registrar_wps_cancel(reg);
 634         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 635                                   wpa_supplicant_ap_wps_sta_cancel, NULL);
 636
 637         if (!reg_sel && !wps_sta) {
 638                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 639                            "time");
 640                 return -1;
 641         }
 642
 643         /*
 644          * There are 2 cases to return wps cancel as success:
 645          * 1. When wps cancel was initiated but no connection has been
 646          *    established with client yet.
 647          * 2. Client is in the middle of exchanging WPS messages.
 648          */
 649
 650         return 0;
 651 }
 652
 653
 654 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 655                               const char *pin, char *buf, size_t buflen)
 656 {
 657         int ret, ret_len = 0;
 658
 659         if (!wpa_s->ap_iface)
 660                 return -1;
 661
 662         if (pin == NULL) {
 663                 unsigned int rpin = wps_generate_pin();
 664                 ret_len = os_snprintf(buf, buflen, "%d", rpin);
 665                 pin = buf;
 666         } else
 667                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 668
 669         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 670                                   0);
 671         if (ret)
 672                 return -1;
 673         return ret_len;
 674 }
 675
 676
 677 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 678 {
 679         struct wpa_supplicant *wpa_s = eloop_data;
 680         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 681         wpas_wps_ap_pin_disable(wpa_s);
 682 }
 683
 684
 685 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 686 {
 687         struct hostapd_data *hapd;
 688
 689         if (wpa_s->ap_iface == NULL)
 690                 return;
 691         hapd = wpa_s->ap_iface->bss[0];
 692         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 693         hapd->ap_pin_failures = 0;
 694         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 695         if (timeout > 0)
 696                 eloop_register_timeout(timeout, 0,
 697                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 698 }
 699
 700
 701 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 702 {
 703         struct hostapd_data *hapd;
 704
 705         if (wpa_s->ap_iface == NULL)
 706                 return;
 707         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 708         hapd = wpa_s->ap_iface->bss[0];
 709         os_free(hapd->conf->ap_pin);
 710         hapd->conf->ap_pin = NULL;
 711         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 712 }
 713
 714
 715 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 716 {
 717         struct hostapd_data *hapd;
 718         unsigned int pin;
 719         char pin_txt[9];
 720
 721         if (wpa_s->ap_iface == NULL)
 722                 return NULL;
 723         hapd = wpa_s->ap_iface->bss[0];
 724         pin = wps_generate_pin();
 725         os_snprintf(pin_txt, sizeof(pin_txt), "%u", pin);
 726         os_free(hapd->conf->ap_pin);
 727         hapd->conf->ap_pin = os_strdup(pin_txt);
 728         if (hapd->conf->ap_pin == NULL)
 729                 return NULL;
 730         wpas_wps_ap_pin_enable(wpa_s, timeout);
 731
 732         return hapd->conf->ap_pin;
 733 }
 734
 735
 736 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 737 {
 738         struct hostapd_data *hapd;
 739         if (wpa_s->ap_iface == NULL)
 740                 return NULL;
 741         hapd = wpa_s->ap_iface->bss[0];
 742         return hapd->conf->ap_pin;
 743 }
 744
 745
 746 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 747                         int timeout)
 748 {
 749         struct hostapd_data *hapd;
 750         char pin_txt[9];
 751         int ret;
 752
 753         if (wpa_s->ap_iface == NULL)
 754                 return -1;
 755         hapd = wpa_s->ap_iface->bss[0];
 756         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 757         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 758                 return -1;
 759         os_free(hapd->conf->ap_pin);
 760         hapd->conf->ap_pin = os_strdup(pin_txt);
 761         if (hapd->conf->ap_pin == NULL)
 762                 return -1;
 763         wpas_wps_ap_pin_enable(wpa_s, timeout);
 764
 765         return 0;
 766 }
 767
 768
 769 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 770 {
 771         struct hostapd_data *hapd;
 772
 773         if (wpa_s->ap_iface == NULL)
 774                 return;
 775         hapd = wpa_s->ap_iface->bss[0];
 776
 777         /*
 778          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 779          * PIN if this happens multiple times to slow down brute force attacks.
 780          */
 781         hapd->ap_pin_failures++;
 782         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 783                    hapd->ap_pin_failures);
 784         if (hapd->ap_pin_failures < 3)
 785                 return;
 786
 787         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 788         hapd->ap_pin_failures = 0;
 789         os_free(hapd->conf->ap_pin);
 790         hapd->conf->ap_pin = NULL;
 791 }
 792
 793 #endif /* CONFIG_WPS */
 794
 795
 796 #ifdef CONFIG_CTRL_IFACE
 797
 798 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 799                             char *buf, size_t buflen)
 800 {
 801         if (wpa_s->ap_iface == NULL)
 802                 return -1;
 803         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 804                                             buf, buflen);
 805 }
 806
 807
 808 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 809                       char *buf, size_t buflen)
 810 {
 811         if (wpa_s->ap_iface == NULL)
 812                 return -1;
 813         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 814                                       buf, buflen);
 815 }
 816
 817
 818 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 819                            char *buf, size_t buflen)
 820 {
 821         if (wpa_s->ap_iface == NULL)
 822                 return -1;
 823         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 824                                            buf, buflen);
 825 }
 826
 827
 828 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 829                                  size_t buflen, int verbose)
 830 {
 831         char *pos = buf, *end = buf + buflen;
 832         int ret;
 833         struct hostapd_bss_config *conf;
 834
 835         if (wpa_s->ap_iface == NULL)
 836                 return -1;
 837
 838         conf = wpa_s->ap_iface->bss[0]->conf;
 839         if (conf->wpa == 0)
 840                 return 0;
 841
 842         ret = os_snprintf(pos, end - pos,
 843                           "pairwise_cipher=%s\n"
 844                           "group_cipher=%s\n"
 845                           "key_mgmt=%s\n",
 846                           wpa_cipher_txt(conf->rsn_pairwise),
 847                           wpa_cipher_txt(conf->wpa_group),
 848                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 849                                            conf->wpa));
 850         if (ret < 0 || ret >= end - pos)
 851                 return pos - buf;
 852         pos += ret;
 853         return pos - buf;
 854 }
 855
 856 #endif /* CONFIG_CTRL_IFACE */
 857
 858
 859 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 860 {
 861         struct hostapd_iface *iface = wpa_s->ap_iface;
 862         struct wpa_ssid *ssid = wpa_s->current_ssid;
 863         struct hostapd_data *hapd;
 864
 865         if (ssid == NULL || wpa_s->ap_iface == NULL)
 866                 return -1;
 867
 868 #ifdef CONFIG_P2P
 869         if (ssid->mode == WPAS_MODE_P2P_GO)
 870                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 871         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 872                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 873                         P2P_GROUP_FORMATION;
 874 #endif /* CONFIG_P2P */
 875
 876         ieee802_11_set_beacons(iface);
 877         hapd = iface->bss[0];
 878         hostapd_set_ap_wps_ie(hapd);
 879
 880         return 0;
 881 }
 882
 883
 884 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 885                                       const u8 *addr)
 886 {
 887         struct hostapd_data *hapd;
 888         struct hostapd_bss_config *conf;
 889
 890         if (!wpa_s->ap_iface)
 891                 return -1;
 892
 893         if (addr)
 894                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 895                            MAC2STR(addr));
 896         else
 897                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 898
 899         hapd = wpa_s->ap_iface->bss[0];
 900         conf = hapd->conf;
 901
 902         os_free(conf->accept_mac);
 903         conf->accept_mac = NULL;
 904         conf->num_accept_mac = 0;
 905         os_free(conf->deny_mac);
 906         conf->deny_mac = NULL;
 907         conf->num_deny_mac = 0;
 908
 909         if (addr == NULL) {
 910                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 911                 return 0;
 912         }
 913
 914         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 915         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 916         if (conf->accept_mac == NULL)
 917                 return -1;
 918         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 919         conf->num_accept_mac = 1;
 920
 921         return 0;
 922 }