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 "common/ieee802_11_defs.h"
  20 #include "common/wpa_ctrl.h"
  21 #include "ap/hostapd.h"
  22 #include "ap/ap_config.h"
  23 #ifdef NEED_AP_MLME
  24 #include "ap/ieee802_11.h"
  25 #endif /* NEED_AP_MLME */
  26 #include "ap/beacon.h"
  27 #include "ap/ieee802_1x.h"
  28 #include "ap/wps_hostapd.h"
  29 #include "ap/ctrl_iface_ap.h"
  30 #include "eap_common/eap_defs.h"
  31 #include "eap_server/eap_methods.h"
  32 #include "eap_common/eap_wsc_common.h"
  33 #include "wps/wps.h"
  34 #include "common/ieee802_11_defs.h"
  35 #include "config_ssid.h"
  36 #include "config.h"
  37 #include "wpa_supplicant_i.h"
  38 #include "driver_i.h"
  39 #include "p2p_supplicant.h"
  40 #include "ap.h"
  41 #include "ap/sta_info.h"
  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 HT if driver supports it;
  73          * drop to 11b if driver does not support 11g */
  74
  75 #ifdef CONFIG_P2P
  76         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
  77                 /* Remove 802.11b rates from supported and basic rate sets */
  78                 int *list = os_malloc(4 * sizeof(int));
  79                 if (list) {
  80                         list[0] = 60;
  81                         list[1] = 120;
  82                         list[2] = 240;
  83                         list[3] = -1;
  84                 }
  85                 conf->basic_rates = list;
  86
  87                 list = os_malloc(9 * sizeof(int));
  88                 if (list) {
  89                         list[0] = 60;
  90                         list[1] = 90;
  91                         list[2] = 120;
  92                         list[3] = 180;
  93                         list[4] = 240;
  94                         list[5] = 360;
  95                         list[6] = 480;
  96                         list[7] = 540;
  97                         list[8] = -1;
  98                 }
  99                 conf->supported_rates = list;
 100         }
 101 #endif /* CONFIG_P2P */
 102
 103         if (ssid->ssid_len == 0) {
 104                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 105                 return -1;
 106         }
 107         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 108         bss->ssid.ssid[ssid->ssid_len] = '\0';
 109         bss->ssid.ssid_len = ssid->ssid_len;
 110         bss->ssid.ssid_set = 1;
 111
 112         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 113                 bss->wpa = ssid->proto;
 114         bss->wpa_key_mgmt = ssid->key_mgmt;
 115         bss->wpa_pairwise = ssid->pairwise_cipher;
 116         if (ssid->passphrase) {
 117                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 118         } else if (ssid->psk_set) {
 119                 os_free(bss->ssid.wpa_psk);
 120                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 121                 if (bss->ssid.wpa_psk == NULL)
 122                         return -1;
 123                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 124                 bss->ssid.wpa_psk->group = 1;
 125         }
 126
 127         /* Select group cipher based on the enabled pairwise cipher suites */
 128         pairwise = 0;
 129         if (bss->wpa & 1)
 130                 pairwise |= bss->wpa_pairwise;
 131         if (bss->wpa & 2) {
 132                 if (bss->rsn_pairwise == 0)
 133                         bss->rsn_pairwise = bss->wpa_pairwise;
 134                 pairwise |= bss->rsn_pairwise;
 135         }
 136         if (pairwise & WPA_CIPHER_TKIP)
 137                 bss->wpa_group = WPA_CIPHER_TKIP;
 138         else
 139                 bss->wpa_group = WPA_CIPHER_CCMP;
 140
 141         if (bss->wpa && bss->ieee802_1x)
 142                 bss->ssid.security_policy = SECURITY_WPA;
 143         else if (bss->wpa)
 144                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 145         else if (bss->ieee802_1x) {
 146                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 147                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 148         } else if (bss->ssid.wep.keys_set)
 149                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 150         else
 151                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 152
 153 #ifdef CONFIG_WPS
 154         /*
 155          * Enable WPS by default, but require user interaction to actually use
 156          * it. Only the internal Registrar is supported.
 157          */
 158         bss->eap_server = 1;
 159         bss->wps_state = 2;
 160         bss->ap_setup_locked = 1;
 161         if (wpa_s->conf->config_methods)
 162                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 163         if (wpa_s->conf->device_type)
 164                 bss->device_type = os_strdup(wpa_s->conf->device_type);
 165         if (wpa_s->conf->device_name) {
 166                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 167                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 168         }
 169         if (wpa_s->conf->manufacturer)
 170                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 171         if (wpa_s->conf->model_name)
 172                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 173         if (wpa_s->conf->model_number)
 174                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 175         if (wpa_s->conf->serial_number)
 176                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 177         os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 178         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 179 #endif /* CONFIG_WPS */
 180
 181         bss->max_num_sta = wpa_s->conf->max_num_sta;
 182
 183         return 0;
 184 }
 185
 186
 187 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 188 {
 189 #ifdef CONFIG_P2P
 190         struct wpa_supplicant *wpa_s = ctx;
 191         const struct ieee80211_mgmt *mgmt;
 192         size_t hdr_len;
 193
 194         mgmt = (const struct ieee80211_mgmt *) buf;
 195         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 196         if (hdr_len > len)
 197                 return;
 198         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 199                            mgmt->u.action.category,
 200                            &mgmt->u.action.u.vs_public_action.action,
 201                            len - hdr_len, freq);
 202 #endif /* CONFIG_P2P */
 203 }
 204
 205
 206 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 207                             union wps_event_data *data)
 208 {
 209         struct wpa_supplicant *wpa_s = ctx;
 210
 211         if (event == WPS_EV_FAIL && wpa_s->parent && wpa_s->parent != wpa_s) {
 212                 struct wps_event_fail *fail = &data->fail;
 213
 214                 /*
 215                  * src/ap/wps_hostapd.c has already sent this on the main
 216                  * interface, so only send on the parent interface here if
 217                  * needed.
 218                  */
 219                 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 220                         "msg=%d config_error=%d",
 221                         fail->msg, fail->config_error);
 222         }
 223 }
 224
 225
 226 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 227 {
 228 #ifdef CONFIG_P2P
 229         struct wpa_supplicant *wpa_s = ctx;
 230         const struct ieee80211_mgmt *mgmt;
 231         size_t hdr_len;
 232
 233         mgmt = (const struct ieee80211_mgmt *) buf;
 234         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 235         if (hdr_len > len)
 236                 return -1;
 237         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 238                            mgmt->u.action.category,
 239                            &mgmt->u.action.u.vs_public_action.action,
 240                            len - hdr_len, freq);
 241 #endif /* CONFIG_P2P */
 242         return 0;
 243 }
 244
 245
 246 static int ap_probe_req_rx(void *ctx, const u8 *addr, const u8 *ie,
 247                            size_t ie_len)
 248 {
 249 #ifdef CONFIG_P2P
 250         struct wpa_supplicant *wpa_s = ctx;
 251         return wpas_p2p_probe_req_rx(wpa_s, addr, ie, ie_len);
 252 #else /* CONFIG_P2P */
 253         return 0;
 254 #endif /* CONFIG_P2P */
 255 }
 256
 257
 258 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 259                                   const u8 *uuid_e)
 260 {
 261 #ifdef CONFIG_P2P
 262         struct wpa_supplicant *wpa_s = ctx;
 263         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 264 #endif /* CONFIG_P2P */
 265 }
 266
 267
 268 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 269                              struct wpa_ssid *ssid)
 270 {
 271         struct wpa_driver_associate_params params;
 272         struct hostapd_iface *hapd_iface;
 273         struct hostapd_config *conf;
 274         size_t i;
 275
 276         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 277                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 278                 return -1;
 279         }
 280
 281         wpa_supplicant_ap_deinit(wpa_s);
 282
 283         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 284                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 285
 286         os_memset(&params, 0, sizeof(params));
 287         params.ssid = ssid->ssid;
 288         params.ssid_len = ssid->ssid_len;
 289         switch (ssid->mode) {
 290         case WPAS_MODE_INFRA:
 291                 params.mode = IEEE80211_MODE_INFRA;
 292                 break;
 293         case WPAS_MODE_IBSS:
 294                 params.mode = IEEE80211_MODE_IBSS;
 295                 break;
 296         case WPAS_MODE_AP:
 297         case WPAS_MODE_P2P_GO:
 298         case WPAS_MODE_P2P_GROUP_FORMATION:
 299                 params.mode = IEEE80211_MODE_AP;
 300                 break;
 301         }
 302         params.freq = ssid->frequency;
 303
 304         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 305                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 306         else
 307                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 308         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 309
 310         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 311                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 312         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 313                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 314         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 315                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 316         else {
 317                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 318                            "cipher.");
 319                 return -1;
 320         }
 321         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 322         params.group_suite = params.pairwise_suite;
 323
 324 #ifdef CONFIG_P2P
 325         if (ssid->mode == WPAS_MODE_P2P_GO ||
 326             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 327                 params.p2p = 1;
 328         wpa_drv_set_intra_bss(wpa_s, wpa_s->conf->p2p_intra_bss);
 329 #endif /* CONFIG_P2P */
 330
 331         if (wpa_s->parent->set_ap_uapsd)
 332                 params.uapsd = wpa_s->parent->ap_uapsd;
 333         else
 334                 params.uapsd = -1;
 335
 336         if (wpa_drv_associate(wpa_s, &params) < 0) {
 337                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 338                 return -1;
 339         }
 340
 341         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 342         if (hapd_iface == NULL)
 343                 return -1;
 344         hapd_iface->owner = wpa_s;
 345
 346         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 347         if (conf == NULL) {
 348                 wpa_supplicant_ap_deinit(wpa_s);
 349                 return -1;
 350         }
 351
 352         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 353                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 354                 wpa_supplicant_ap_deinit(wpa_s);
 355                 return -1;
 356         }
 357
 358 #ifdef CONFIG_P2P
 359         if (ssid->mode == WPAS_MODE_P2P_GO)
 360                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 361         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 362                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 363                         P2P_GROUP_FORMATION;
 364 #endif /* CONFIG_P2P */
 365
 366         hapd_iface->num_bss = conf->num_bss;
 367         hapd_iface->bss = os_zalloc(conf->num_bss *
 368                                     sizeof(struct hostapd_data *));
 369         if (hapd_iface->bss == NULL) {
 370                 wpa_supplicant_ap_deinit(wpa_s);
 371                 return -1;
 372         }
 373
 374         for (i = 0; i < conf->num_bss; i++) {
 375                 hapd_iface->bss[i] =
 376                         hostapd_alloc_bss_data(hapd_iface, conf,
 377                                                &conf->bss[i]);
 378                 if (hapd_iface->bss[i] == NULL) {
 379                         wpa_supplicant_ap_deinit(wpa_s);
 380                         return -1;
 381                 }
 382
 383                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 384                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 385                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 386                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 387                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 388                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 389                                              ap_probe_req_rx, wpa_s);
 390                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 391                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 392                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 393                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 394 #ifdef CONFIG_P2P
 395                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 396                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
 397                         wpa_s, ssid->p2p_persistent_group,
 398                         ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
 399 #endif /* CONFIG_P2P */
 400         }
 401
 402         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 403         hapd_iface->bss[0]->driver = wpa_s->driver;
 404         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 405
 406         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 407                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 408                 wpa_supplicant_ap_deinit(wpa_s);
 409                 return -1;
 410         }
 411
 412         wpa_s->current_ssid = ssid;
 413         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 414         wpa_s->assoc_freq = ssid->frequency;
 415         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 416
 417         if (wpa_s->ap_configured_cb)
 418                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 419                                         wpa_s->ap_configured_cb_data);
 420
 421         return 0;
 422 }
 423
 424
 425 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 426 {
 427         if (wpa_s->ap_iface == NULL)
 428                 return;
 429
 430         wpa_s->current_ssid = NULL;
 431 #ifdef CONFIG_P2P
 432         if (wpa_s->ap_iface->bss)
 433                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 434         wpas_p2p_group_deinit(wpa_s);
 435 #endif /* CONFIG_P2P */
 436         hostapd_interface_deinit(wpa_s->ap_iface);
 437         hostapd_interface_free(wpa_s->ap_iface);
 438         wpa_s->ap_iface = NULL;
 439         wpa_drv_deinit_ap(wpa_s);
 440 }
 441
 442
 443 void ap_tx_status(void *ctx, const u8 *addr,
 444                   const u8 *buf, size_t len, int ack)
 445 {
 446 #ifdef NEED_AP_MLME
 447         struct wpa_supplicant *wpa_s = ctx;
 448         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 449 #endif /* NEED_AP_MLME */
 450 }
 451
 452
 453 void ap_rx_from_unknown_sta(void *ctx, const u8 *frame, size_t len)
 454 {
 455 #ifdef NEED_AP_MLME
 456         struct wpa_supplicant *wpa_s = ctx;
 457         const struct ieee80211_hdr *hdr =
 458                 (const struct ieee80211_hdr *) frame;
 459         u16 fc = le_to_host16(hdr->frame_control);
 460         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], hdr->addr2,
 461                                    (fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) ==
 462                                    (WLAN_FC_TODS | WLAN_FC_FROMDS));
 463 #endif /* NEED_AP_MLME */
 464 }
 465
 466
 467 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 468 {
 469 #ifdef NEED_AP_MLME
 470         struct wpa_supplicant *wpa_s = ctx;
 471         struct hostapd_frame_info fi;
 472         os_memset(&fi, 0, sizeof(fi));
 473         fi.datarate = rx_mgmt->datarate;
 474         fi.ssi_signal = rx_mgmt->ssi_signal;
 475         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 476                         rx_mgmt->frame_len, &fi);
 477 #endif /* NEED_AP_MLME */
 478 }
 479
 480
 481 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 482 {
 483 #ifdef NEED_AP_MLME
 484         struct wpa_supplicant *wpa_s = ctx;
 485         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 486 #endif /* NEED_AP_MLME */
 487 }
 488
 489
 490 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 491                                 const u8 *src_addr, const u8 *buf, size_t len)
 492 {
 493         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 494 }
 495
 496
 497 #ifdef CONFIG_WPS
 498
 499 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
 500 {
 501         if (!wpa_s->ap_iface)
 502                 return -1;
 503         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0]);
 504 }
 505
 506
 507 static int wpa_supplicant_ap_wps_sta_cancel(struct hostapd_data *hapd,
 508                                             struct sta_info *sta, void *ctx)
 509 {
 510         if (sta && (sta->flags & WLAN_STA_WPS)) {
 511                 ap_sta_deauthenticate(hapd, sta,
 512                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 513                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 514                            __func__, MAC2STR(sta->addr));
 515                 return 1;
 516         }
 517
 518         return 0;
 519 }
 520
 521
 522 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 523 {
 524         struct wps_registrar *reg;
 525         int reg_sel = 0, wps_sta = 0;
 526
 527         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 528                 return -1;
 529
 530         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 531         reg_sel = wps_registrar_wps_cancel(reg);
 532         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 533                                   wpa_supplicant_ap_wps_sta_cancel, NULL);
 534
 535         if (!reg_sel && !wps_sta) {
 536                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 537                            "time");
 538                 return -1;
 539         }
 540
 541         /*
 542          * There are 2 cases to return wps cancel as success:
 543          * 1. When wps cancel was initiated but no connection has been
 544          *    established with client yet.
 545          * 2. Client is in the middle of exchanging WPS messages.
 546          */
 547
 548         return 0;
 549 }
 550
 551
 552 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 553                               const char *pin, char *buf, size_t buflen)
 554 {
 555         int ret, ret_len = 0;
 556
 557         if (!wpa_s->ap_iface)
 558                 return -1;
 559
 560         if (pin == NULL) {
 561                 unsigned int rpin = wps_generate_pin();
 562                 ret_len = os_snprintf(buf, buflen, "%d", rpin);
 563                 pin = buf;
 564         } else
 565                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 566
 567         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 568                                   0);
 569         if (ret)
 570                 return -1;
 571         return ret_len;
 572 }
 573
 574 #endif /* CONFIG_WPS */
 575
 576
 577 #ifdef CONFIG_CTRL_IFACE
 578
 579 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 580                             char *buf, size_t buflen)
 581 {
 582         if (wpa_s->ap_iface == NULL)
 583                 return -1;
 584         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 585                                             buf, buflen);
 586 }
 587
 588
 589 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 590                       char *buf, size_t buflen)
 591 {
 592         if (wpa_s->ap_iface == NULL)
 593                 return -1;
 594         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 595                                       buf, buflen);
 596 }
 597
 598
 599 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 600                            char *buf, size_t buflen)
 601 {
 602         if (wpa_s->ap_iface == NULL)
 603                 return -1;
 604         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 605                                            buf, buflen);
 606 }
 607
 608
 609 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 610                                  size_t buflen, int verbose)
 611 {
 612         char *pos = buf, *end = buf + buflen;
 613         int ret;
 614         struct hostapd_bss_config *conf;
 615
 616         if (wpa_s->ap_iface == NULL)
 617                 return -1;
 618
 619         conf = wpa_s->ap_iface->bss[0]->conf;
 620         if (conf->wpa == 0)
 621                 return 0;
 622
 623         ret = os_snprintf(pos, end - pos,
 624                           "pairwise_cipher=%s\n"
 625                           "group_cipher=%s\n"
 626                           "key_mgmt=%s\n",
 627                           wpa_cipher_txt(conf->rsn_pairwise),
 628                           wpa_cipher_txt(conf->wpa_group),
 629                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 630                                            conf->wpa));
 631         if (ret < 0 || ret >= end - pos)
 632                 return pos - buf;
 633         pos += ret;
 634         return pos - buf;
 635 }
 636
 637 #endif /* CONFIG_CTRL_IFACE */
 638
 639
 640 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 641 {
 642         struct hostapd_iface *iface = wpa_s->ap_iface;
 643         struct wpa_ssid *ssid = wpa_s->current_ssid;
 644         struct hostapd_data *hapd;
 645
 646         if (ssid == NULL || wpa_s->ap_iface == NULL)
 647                 return -1;
 648
 649 #ifdef CONFIG_P2P
 650         if (ssid->mode == WPAS_MODE_P2P_GO)
 651                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 652         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 653                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 654                         P2P_GROUP_FORMATION;
 655 #endif /* CONFIG_P2P */
 656
 657         ieee802_11_set_beacons(iface);
 658         hapd = iface->bss[0];
 659         hapd->drv.set_ap_wps_ie(hapd);
 660
 661         return 0;
 662 }
 663
 664
 665 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 666                                       const u8 *addr)
 667 {
 668         struct hostapd_data *hapd;
 669         struct hostapd_bss_config *conf;
 670
 671         if (!wpa_s->ap_iface)
 672                 return -1;
 673
 674         if (addr)
 675                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 676                            MAC2STR(addr));
 677         else
 678                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 679
 680         hapd = wpa_s->ap_iface->bss[0];
 681         conf = hapd->conf;
 682
 683         os_free(conf->accept_mac);
 684         conf->accept_mac = NULL;
 685         conf->num_accept_mac = 0;
 686         os_free(conf->deny_mac);
 687         conf->deny_mac = NULL;
 688         conf->num_deny_mac = 0;
 689
 690         if (addr == NULL) {
 691                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 692                 return 0;
 693         }
 694
 695         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 696         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 697         if (conf->accept_mac == NULL)
 698                 return -1;
 699         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 700         conf->num_accept_mac = 1;
 701
 702         return 0;
 703 }