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         return 0;
 182 }
 183
 184
 185 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 186 {
 187 #ifdef CONFIG_P2P
 188         struct wpa_supplicant *wpa_s = ctx;
 189         const struct ieee80211_mgmt *mgmt;
 190         size_t hdr_len;
 191
 192         mgmt = (const struct ieee80211_mgmt *) buf;
 193         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 194         if (hdr_len > len)
 195                 return;
 196         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 197                            mgmt->u.action.category,
 198                            &mgmt->u.action.u.vs_public_action.action,
 199                            len - hdr_len, freq);
 200 #endif /* CONFIG_P2P */
 201 }
 202
 203
 204 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 205                             union wps_event_data *data)
 206 {
 207         struct wpa_supplicant *wpa_s = ctx;
 208
 209         if (event == WPS_EV_FAIL && wpa_s->parent && wpa_s->parent != wpa_s) {
 210                 struct wps_event_fail *fail = &data->fail;
 211
 212                 /*
 213                  * src/ap/wps_hostapd.c has already sent this on the main
 214                  * interface, so only send on the parent interface here if
 215                  * needed.
 216                  */
 217                 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 218                         "msg=%d config_error=%d",
 219                         fail->msg, fail->config_error);
 220         }
 221 }
 222
 223
 224 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 225 {
 226 #ifdef CONFIG_P2P
 227         struct wpa_supplicant *wpa_s = ctx;
 228         const struct ieee80211_mgmt *mgmt;
 229         size_t hdr_len;
 230
 231         mgmt = (const struct ieee80211_mgmt *) buf;
 232         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 233         if (hdr_len > len)
 234                 return -1;
 235         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 236                            mgmt->u.action.category,
 237                            &mgmt->u.action.u.vs_public_action.action,
 238                            len - hdr_len, freq);
 239 #endif /* CONFIG_P2P */
 240         return 0;
 241 }
 242
 243
 244 static int ap_probe_req_rx(void *ctx, const u8 *addr, const u8 *ie,
 245                            size_t ie_len)
 246 {
 247 #ifdef CONFIG_P2P
 248         struct wpa_supplicant *wpa_s = ctx;
 249         return wpas_p2p_probe_req_rx(wpa_s, addr, ie, ie_len);
 250 #else /* CONFIG_P2P */
 251         return 0;
 252 #endif /* CONFIG_P2P */
 253 }
 254
 255
 256 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 257                                   const u8 *uuid_e)
 258 {
 259 #ifdef CONFIG_P2P
 260         struct wpa_supplicant *wpa_s = ctx;
 261         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 262 #endif /* CONFIG_P2P */
 263 }
 264
 265
 266 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 267                              struct wpa_ssid *ssid)
 268 {
 269         struct wpa_driver_associate_params params;
 270         struct hostapd_iface *hapd_iface;
 271         struct hostapd_config *conf;
 272         size_t i;
 273
 274         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 275                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 276                 return -1;
 277         }
 278
 279         wpa_supplicant_ap_deinit(wpa_s);
 280
 281         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 282                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 283
 284         os_memset(&params, 0, sizeof(params));
 285         params.ssid = ssid->ssid;
 286         params.ssid_len = ssid->ssid_len;
 287         switch (ssid->mode) {
 288         case WPAS_MODE_INFRA:
 289                 params.mode = IEEE80211_MODE_INFRA;
 290                 break;
 291         case WPAS_MODE_IBSS:
 292                 params.mode = IEEE80211_MODE_IBSS;
 293                 break;
 294         case WPAS_MODE_AP:
 295         case WPAS_MODE_P2P_GO:
 296         case WPAS_MODE_P2P_GROUP_FORMATION:
 297                 params.mode = IEEE80211_MODE_AP;
 298                 break;
 299         }
 300         params.freq = ssid->frequency;
 301
 302         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 303                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 304         else
 305                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 306         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 307
 308         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 309                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 310         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 311                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 312         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 313                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 314         else {
 315                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 316                            "cipher.");
 317                 return -1;
 318         }
 319         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 320         params.group_suite = params.pairwise_suite;
 321
 322 #ifdef CONFIG_P2P
 323         if (ssid->mode == WPAS_MODE_P2P_GO ||
 324             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 325                 params.p2p = 1;
 326         wpa_drv_set_intra_bss(wpa_s, wpa_s->conf->p2p_intra_bss);
 327 #endif /* CONFIG_P2P */
 328
 329         if (wpa_s->parent->set_ap_uapsd)
 330                 params.uapsd = wpa_s->parent->ap_uapsd;
 331         else
 332                 params.uapsd = -1;
 333
 334         if (wpa_drv_associate(wpa_s, &params) < 0) {
 335                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 336                 return -1;
 337         }
 338
 339         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 340         if (hapd_iface == NULL)
 341                 return -1;
 342         hapd_iface->owner = wpa_s;
 343
 344         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 345         if (conf == NULL) {
 346                 wpa_supplicant_ap_deinit(wpa_s);
 347                 return -1;
 348         }
 349
 350         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 351                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 352                 wpa_supplicant_ap_deinit(wpa_s);
 353                 return -1;
 354         }
 355
 356 #ifdef CONFIG_P2P
 357         if (ssid->mode == WPAS_MODE_P2P_GO)
 358                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 359         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 360                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 361                         P2P_GROUP_FORMATION;
 362 #endif /* CONFIG_P2P */
 363
 364         hapd_iface->num_bss = conf->num_bss;
 365         hapd_iface->bss = os_zalloc(conf->num_bss *
 366                                     sizeof(struct hostapd_data *));
 367         if (hapd_iface->bss == NULL) {
 368                 wpa_supplicant_ap_deinit(wpa_s);
 369                 return -1;
 370         }
 371
 372         for (i = 0; i < conf->num_bss; i++) {
 373                 hapd_iface->bss[i] =
 374                         hostapd_alloc_bss_data(hapd_iface, conf,
 375                                                &conf->bss[i]);
 376                 if (hapd_iface->bss[i] == NULL) {
 377                         wpa_supplicant_ap_deinit(wpa_s);
 378                         return -1;
 379                 }
 380
 381                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 382                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 383                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 384                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 385                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 386                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 387                                              ap_probe_req_rx, wpa_s);
 388                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 389                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 390                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 391                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 392 #ifdef CONFIG_P2P
 393                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 394                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
 395                         wpa_s, ssid->p2p_persistent_group,
 396                         ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
 397 #endif /* CONFIG_P2P */
 398         }
 399
 400         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 401         hapd_iface->bss[0]->driver = wpa_s->driver;
 402         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 403
 404         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 405                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 406                 wpa_supplicant_ap_deinit(wpa_s);
 407                 return -1;
 408         }
 409
 410         wpa_s->current_ssid = ssid;
 411         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 412         wpa_s->assoc_freq = ssid->frequency;
 413         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 414
 415         if (wpa_s->ap_configured_cb)
 416                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 417                                         wpa_s->ap_configured_cb_data);
 418
 419         return 0;
 420 }
 421
 422
 423 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 424 {
 425         if (wpa_s->ap_iface == NULL)
 426                 return;
 427
 428         wpa_s->current_ssid = NULL;
 429 #ifdef CONFIG_P2P
 430         if (wpa_s->ap_iface->bss)
 431                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 432         wpas_p2p_group_deinit(wpa_s);
 433 #endif /* CONFIG_P2P */
 434         hostapd_interface_deinit(wpa_s->ap_iface);
 435         hostapd_interface_free(wpa_s->ap_iface);
 436         wpa_s->ap_iface = NULL;
 437         wpa_drv_deinit_ap(wpa_s);
 438 }
 439
 440
 441 void ap_tx_status(void *ctx, const u8 *addr,
 442                   const u8 *buf, size_t len, int ack)
 443 {
 444 #ifdef NEED_AP_MLME
 445         struct wpa_supplicant *wpa_s = ctx;
 446         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 447 #endif /* NEED_AP_MLME */
 448 }
 449
 450
 451 void ap_rx_from_unknown_sta(void *ctx, const u8 *frame, size_t len)
 452 {
 453 #ifdef NEED_AP_MLME
 454         struct wpa_supplicant *wpa_s = ctx;
 455         const struct ieee80211_hdr *hdr =
 456                 (const struct ieee80211_hdr *) frame;
 457         u16 fc = le_to_host16(hdr->frame_control);
 458         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], hdr->addr2,
 459                                    (fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) ==
 460                                    (WLAN_FC_TODS | WLAN_FC_FROMDS));
 461 #endif /* NEED_AP_MLME */
 462 }
 463
 464
 465 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 466 {
 467 #ifdef NEED_AP_MLME
 468         struct wpa_supplicant *wpa_s = ctx;
 469         struct hostapd_frame_info fi;
 470         os_memset(&fi, 0, sizeof(fi));
 471         fi.datarate = rx_mgmt->datarate;
 472         fi.ssi_signal = rx_mgmt->ssi_signal;
 473         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 474                         rx_mgmt->frame_len, &fi);
 475 #endif /* NEED_AP_MLME */
 476 }
 477
 478
 479 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 480 {
 481 #ifdef NEED_AP_MLME
 482         struct wpa_supplicant *wpa_s = ctx;
 483         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 484 #endif /* NEED_AP_MLME */
 485 }
 486
 487
 488 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 489                                 const u8 *src_addr, const u8 *buf, size_t len)
 490 {
 491         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 492 }
 493
 494
 495 #ifdef CONFIG_WPS
 496
 497 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
 498 {
 499         if (!wpa_s->ap_iface)
 500                 return -1;
 501         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0]);
 502 }
 503
 504
 505 static int wpa_supplicant_ap_wps_sta_cancel(struct hostapd_data *hapd,
 506                                             struct sta_info *sta, void *ctx)
 507 {
 508         if (sta && (sta->flags & WLAN_STA_WPS)) {
 509                 ap_sta_deauthenticate(hapd, sta,
 510                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 511                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 512                            __func__, MAC2STR(sta->addr));
 513                 return 1;
 514         }
 515
 516         return 0;
 517 }
 518
 519
 520 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 521 {
 522         struct wps_registrar *reg;
 523         int reg_sel = 0, wps_sta = 0;
 524
 525         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 526                 return -1;
 527
 528         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 529         reg_sel = wps_registrar_wps_cancel(reg);
 530         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 531                                   wpa_supplicant_ap_wps_sta_cancel, NULL);
 532
 533         if (!reg_sel && !wps_sta) {
 534                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 535                            "time");
 536                 return -1;
 537         }
 538
 539         /*
 540          * There are 2 cases to return wps cancel as success:
 541          * 1. When wps cancel was initiated but no connection has been
 542          *    established with client yet.
 543          * 2. Client is in the middle of exchanging WPS messages.
 544          */
 545
 546         return 0;
 547 }
 548
 549
 550 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 551                               const char *pin, char *buf, size_t buflen)
 552 {
 553         int ret, ret_len = 0;
 554
 555         if (!wpa_s->ap_iface)
 556                 return -1;
 557
 558         if (pin == NULL) {
 559                 unsigned int rpin = wps_generate_pin();
 560                 ret_len = os_snprintf(buf, buflen, "%d", rpin);
 561                 pin = buf;
 562         } else
 563                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 564
 565         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 566                                   0);
 567         if (ret)
 568                 return -1;
 569         return ret_len;
 570 }
 571
 572 #endif /* CONFIG_WPS */
 573
 574
 575 #ifdef CONFIG_CTRL_IFACE
 576
 577 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 578                             char *buf, size_t buflen)
 579 {
 580         if (wpa_s->ap_iface == NULL)
 581                 return -1;
 582         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 583                                             buf, buflen);
 584 }
 585
 586
 587 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 588                       char *buf, size_t buflen)
 589 {
 590         if (wpa_s->ap_iface == NULL)
 591                 return -1;
 592         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 593                                       buf, buflen);
 594 }
 595
 596
 597 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 598                            char *buf, size_t buflen)
 599 {
 600         if (wpa_s->ap_iface == NULL)
 601                 return -1;
 602         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 603                                            buf, buflen);
 604 }
 605
 606
 607 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 608                                  size_t buflen, int verbose)
 609 {
 610         char *pos = buf, *end = buf + buflen;
 611         int ret;
 612         struct hostapd_bss_config *conf;
 613
 614         if (wpa_s->ap_iface == NULL)
 615                 return -1;
 616
 617         conf = wpa_s->ap_iface->bss[0]->conf;
 618         if (conf->wpa == 0)
 619                 return 0;
 620
 621         ret = os_snprintf(pos, end - pos,
 622                           "pairwise_cipher=%s\n"
 623                           "group_cipher=%s\n"
 624                           "key_mgmt=%s\n",
 625                           wpa_cipher_txt(conf->rsn_pairwise),
 626                           wpa_cipher_txt(conf->wpa_group),
 627                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 628                                            conf->wpa));
 629         if (ret < 0 || ret >= end - pos)
 630                 return pos - buf;
 631         pos += ret;
 632         return pos - buf;
 633 }
 634
 635 #endif /* CONFIG_CTRL_IFACE */
 636
 637
 638 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 639 {
 640         struct hostapd_iface *iface = wpa_s->ap_iface;
 641         struct wpa_ssid *ssid = wpa_s->current_ssid;
 642         struct hostapd_data *hapd;
 643
 644         if (ssid == NULL || wpa_s->ap_iface == NULL)
 645                 return -1;
 646
 647 #ifdef CONFIG_P2P
 648         if (ssid->mode == WPAS_MODE_P2P_GO)
 649                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 650         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 651                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 652                         P2P_GROUP_FORMATION;
 653 #endif /* CONFIG_P2P */
 654
 655         ieee802_11_set_beacons(iface);
 656         hapd = iface->bss[0];
 657         hapd->drv.set_ap_wps_ie(hapd);
 658
 659         return 0;
 660 }
 661
 662
 663 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 664                                       const u8 *addr)
 665 {
 666         struct hostapd_data *hapd;
 667         struct hostapd_bss_config *conf;
 668
 669         if (!wpa_s->ap_iface)
 670                 return -1;
 671
 672         if (addr)
 673                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 674                            MAC2STR(addr));
 675         else
 676                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 677
 678         hapd = wpa_s->ap_iface->bss[0];
 679         conf = hapd->conf;
 680
 681         os_free(conf->accept_mac);
 682         conf->accept_mac = NULL;
 683         conf->num_accept_mac = 0;
 684         os_free(conf->deny_mac);
 685         conf->deny_mac = NULL;
 686         conf->num_deny_mac = 0;
 687
 688         if (addr == NULL) {
 689                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 690                 return 0;
 691         }
 692
 693         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 694         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 695         if (conf->accept_mac == NULL)
 696                 return -1;
 697         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 698         conf->num_accept_mac = 1;
 699
 700         return 0;
 701 }