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 "eapol_supp/eapol_supp_sm.h"
  18 #include "crypto/dh_group5.h"
  19 #include "ap/hostapd.h"
  20 #include "ap/ap_config.h"
  21 #include "ap/ap_drv_ops.h"
  22 #ifdef NEED_AP_MLME
  23 #include "ap/ieee802_11.h"
  24 #endif /* NEED_AP_MLME */
  25 #include "ap/beacon.h"
  26 #include "ap/ieee802_1x.h"
  27 #include "ap/wps_hostapd.h"
  28 #include "ap/ctrl_iface_ap.h"
  29 #include "ap/dfs.h"
  30 #include "wps/wps.h"
  31 #include "common/ieee802_11_defs.h"
  32 #include "config_ssid.h"
  33 #include "config.h"
  34 #include "wpa_supplicant_i.h"
  35 #include "driver_i.h"
  36 #include "p2p_supplicant.h"
  37 #include "ap.h"
  38 #include "ap/sta_info.h"
  39 #include "notify.h"
  40
  41
  42 #ifdef CONFIG_WPS
  43 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  44 #endif /* CONFIG_WPS */
  45
  46
  47 #ifdef CONFIG_IEEE80211N
  48 static void wpas_conf_ap_vht(struct wpa_supplicant *wpa_s,
  49                              struct hostapd_config *conf,
  50                              struct hostapd_hw_modes *mode)
  51 {
  52 #ifdef CONFIG_P2P
  53         u8 center_chan = 0;
  54         u8 channel = conf->channel;
  55
  56         if (!conf->secondary_channel)
  57                 goto no_vht;
  58
  59         center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
  60         if (!center_chan)
  61                 goto no_vht;
  62
  63         /* Use 80 MHz channel */
  64         conf->vht_oper_chwidth = 1;
  65         conf->vht_oper_centr_freq_seg0_idx = center_chan;
  66         return;
  67
  68 no_vht:
  69         conf->vht_oper_centr_freq_seg0_idx =
  70                 channel + conf->secondary_channel * 2;
  71 #else /* CONFIG_P2P */
  72         conf->vht_oper_centr_freq_seg0_idx =
  73                 conf->channel + conf->secondary_channel * 2;
  74 #endif /* CONFIG_P2P */
  75 }
  76 #endif /* CONFIG_IEEE80211N */
  77
  78
  79 int wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
  80                               struct wpa_ssid *ssid,
  81                               struct hostapd_config *conf)
  82 {
  83         conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
  84                                                &conf->channel);
  85
  86         if (conf->hw_mode == NUM_HOSTAPD_MODES) {
  87                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  88                            ssid->frequency);
  89                 return -1;
  90         }
  91
  92         /* TODO: enable HT40 if driver supports it;
  93          * drop to 11b if driver does not support 11g */
  94
  95 #ifdef CONFIG_IEEE80211N
  96         /*
  97          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
  98          * and a mask of allowed capabilities within conf->ht_capab.
  99          * Using default config settings for: conf->ht_op_mode_fixed,
 100          * conf->secondary_channel, conf->require_ht
 101          */
 102         if (wpa_s->hw.modes) {
 103                 struct hostapd_hw_modes *mode = NULL;
 104                 int i, no_ht = 0;
 105                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
 106                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
 107                                 mode = &wpa_s->hw.modes[i];
 108                                 break;
 109                         }
 110                 }
 111
 112 #ifdef CONFIG_HT_OVERRIDES
 113                 if (ssid->disable_ht) {
 114                         conf->ieee80211n = 0;
 115                         conf->ht_capab = 0;
 116                         no_ht = 1;
 117                 }
 118 #endif /* CONFIG_HT_OVERRIDES */
 119
 120                 if (!no_ht && mode && mode->ht_capab) {
 121                         conf->ieee80211n = 1;
 122 #ifdef CONFIG_P2P
 123                         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
 124                             (mode->ht_capab &
 125                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
 126                             ssid->ht40)
 127                                 conf->secondary_channel =
 128                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
 129                                                                conf->channel);
 130                         if (conf->secondary_channel)
 131                                 conf->ht_capab |=
 132                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 133 #endif /* CONFIG_P2P */
 134
 135                         /*
 136                          * white-list capabilities that won't cause issues
 137                          * to connecting stations, while leaving the current
 138                          * capabilities intact (currently disabled SMPS).
 139                          */
 140                         conf->ht_capab |= mode->ht_capab &
 141                                 (HT_CAP_INFO_GREEN_FIELD |
 142                                  HT_CAP_INFO_SHORT_GI20MHZ |
 143                                  HT_CAP_INFO_SHORT_GI40MHZ |
 144                                  HT_CAP_INFO_RX_STBC_MASK |
 145                                  HT_CAP_INFO_TX_STBC |
 146                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 147
 148                         if (mode->vht_capab && ssid->vht) {
 149                                 conf->ieee80211ac = 1;
 150                                 wpas_conf_ap_vht(wpa_s, conf, mode);
 151                         }
 152                 }
 153         }
 154
 155         if (conf->secondary_channel) {
 156                 struct wpa_supplicant *iface;
 157
 158                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
 159                 {
 160                         if (iface == wpa_s ||
 161                             iface->wpa_state < WPA_AUTHENTICATING ||
 162                             (int) iface->assoc_freq != ssid->frequency)
 163                                 continue;
 164
 165                         /*
 166                          * Do not allow 40 MHz co-ex PRI/SEC switch to force us
 167                          * to change our PRI channel since we have an existing,
 168                          * concurrent connection on that channel and doing
 169                          * multi-channel concurrency is likely to cause more
 170                          * harm than using different PRI/SEC selection in
 171                          * environment with multiple BSSes on these two channels
 172                          * with mixed 20 MHz or PRI channel selection.
 173                          */
 174                         conf->no_pri_sec_switch = 1;
 175                 }
 176         }
 177 #endif /* CONFIG_IEEE80211N */
 178
 179         return 0;
 180 }
 181
 182
 183 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
 184                                   struct wpa_ssid *ssid,
 185                                   struct hostapd_config *conf)
 186 {
 187         struct hostapd_bss_config *bss = conf->bss[0];
 188
 189         conf->driver = wpa_s->driver;
 190
 191         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
 192
 193         if (wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf))
 194                 return -1;
 195
 196         if (ieee80211_is_dfs(ssid->frequency) && wpa_s->conf->country[0]) {
 197                 conf->ieee80211h = 1;
 198                 conf->ieee80211d = 1;
 199                 conf->country[0] = wpa_s->conf->country[0];
 200                 conf->country[1] = wpa_s->conf->country[1];
 201         }
 202
 203 #ifdef CONFIG_P2P
 204         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
 205             (ssid->mode == WPAS_MODE_P2P_GO ||
 206              ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
 207                 /* Remove 802.11b rates from supported and basic rate sets */
 208                 int *list = os_malloc(4 * sizeof(int));
 209                 if (list) {
 210                         list[0] = 60;
 211                         list[1] = 120;
 212                         list[2] = 240;
 213                         list[3] = -1;
 214                 }
 215                 conf->basic_rates = list;
 216
 217                 list = os_malloc(9 * sizeof(int));
 218                 if (list) {
 219                         list[0] = 60;
 220                         list[1] = 90;
 221                         list[2] = 120;
 222                         list[3] = 180;
 223                         list[4] = 240;
 224                         list[5] = 360;
 225                         list[6] = 480;
 226                         list[7] = 540;
 227                         list[8] = -1;
 228                 }
 229                 conf->supported_rates = list;
 230         }
 231
 232         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 233         bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
 234
 235         if (ssid->p2p_group) {
 236                 os_memcpy(bss->ip_addr_go, wpa_s->parent->conf->ip_addr_go, 4);
 237                 os_memcpy(bss->ip_addr_mask, wpa_s->parent->conf->ip_addr_mask,
 238                           4);
 239                 os_memcpy(bss->ip_addr_start,
 240                           wpa_s->parent->conf->ip_addr_start, 4);
 241                 os_memcpy(bss->ip_addr_end, wpa_s->parent->conf->ip_addr_end,
 242                           4);
 243         }
 244 #endif /* CONFIG_P2P */
 245
 246         if (ssid->ssid_len == 0) {
 247                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 248                 return -1;
 249         }
 250         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 251         bss->ssid.ssid_len = ssid->ssid_len;
 252         bss->ssid.ssid_set = 1;
 253
 254         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 255
 256         if (ssid->auth_alg)
 257                 bss->auth_algs = ssid->auth_alg;
 258
 259         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 260                 bss->wpa = ssid->proto;
 261         bss->wpa_key_mgmt = ssid->key_mgmt;
 262         bss->wpa_pairwise = ssid->pairwise_cipher;
 263         if (ssid->psk_set) {
 264                 bin_clear_free(bss->ssid.wpa_psk, sizeof(*bss->ssid.wpa_psk));
 265                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 266                 if (bss->ssid.wpa_psk == NULL)
 267                         return -1;
 268                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 269                 bss->ssid.wpa_psk->group = 1;
 270         } else if (ssid->passphrase) {
 271                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 272         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 273                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 274                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 275                 int i;
 276                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 277                         if (ssid->wep_key_len[i] == 0)
 278                                 continue;
 279                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 280                         if (wep->key[i] == NULL)
 281                                 return -1;
 282                         os_memcpy(wep->key[i], ssid->wep_key[i],
 283                                   ssid->wep_key_len[i]);
 284                         wep->len[i] = ssid->wep_key_len[i];
 285                 }
 286                 wep->idx = ssid->wep_tx_keyidx;
 287                 wep->keys_set = 1;
 288         }
 289
 290         if (ssid->ap_max_inactivity)
 291                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 292
 293         if (ssid->dtim_period)
 294                 bss->dtim_period = ssid->dtim_period;
 295         else if (wpa_s->conf->dtim_period)
 296                 bss->dtim_period = wpa_s->conf->dtim_period;
 297
 298         if (ssid->beacon_int)
 299                 conf->beacon_int = ssid->beacon_int;
 300         else if (wpa_s->conf->beacon_int)
 301                 conf->beacon_int = wpa_s->conf->beacon_int;
 302
 303 #ifdef CONFIG_P2P
 304         if (ssid->mode == WPAS_MODE_P2P_GO ||
 305             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 306                 if (wpa_s->conf->p2p_go_ctwindow > conf->beacon_int) {
 307                         wpa_printf(MSG_INFO,
 308                                    "CTWindow (%d) is bigger than beacon interval (%d) - avoid configuring it",
 309                                    wpa_s->conf->p2p_go_ctwindow,
 310                                    conf->beacon_int);
 311                         conf->p2p_go_ctwindow = 0;
 312                 } else {
 313                         conf->p2p_go_ctwindow = wpa_s->conf->p2p_go_ctwindow;
 314                 }
 315         }
 316 #endif /* CONFIG_P2P */
 317
 318         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
 319                 bss->rsn_pairwise = bss->wpa_pairwise;
 320         bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
 321                                                     bss->rsn_pairwise);
 322
 323         if (bss->wpa && bss->ieee802_1x)
 324                 bss->ssid.security_policy = SECURITY_WPA;
 325         else if (bss->wpa)
 326                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 327         else if (bss->ieee802_1x) {
 328                 int cipher = WPA_CIPHER_NONE;
 329                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 330                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 331                 if (bss->default_wep_key_len)
 332                         cipher = bss->default_wep_key_len >= 13 ?
 333                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 334                 bss->wpa_group = cipher;
 335                 bss->wpa_pairwise = cipher;
 336                 bss->rsn_pairwise = cipher;
 337         } else if (bss->ssid.wep.keys_set) {
 338                 int cipher = WPA_CIPHER_WEP40;
 339                 if (bss->ssid.wep.len[0] >= 13)
 340                         cipher = WPA_CIPHER_WEP104;
 341                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 342                 bss->wpa_group = cipher;
 343                 bss->wpa_pairwise = cipher;
 344                 bss->rsn_pairwise = cipher;
 345         } else {
 346                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 347                 bss->wpa_group = WPA_CIPHER_NONE;
 348                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 349                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 350         }
 351
 352         if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
 353             (bss->wpa_group == WPA_CIPHER_CCMP ||
 354              bss->wpa_group == WPA_CIPHER_GCMP ||
 355              bss->wpa_group == WPA_CIPHER_CCMP_256 ||
 356              bss->wpa_group == WPA_CIPHER_GCMP_256)) {
 357                 /*
 358                  * Strong ciphers do not need frequent rekeying, so increase
 359                  * the default GTK rekeying period to 24 hours.
 360                  */
 361                 bss->wpa_group_rekey = 86400;
 362         }
 363
 364 #ifdef CONFIG_IEEE80211W
 365         if (ssid->ieee80211w != MGMT_FRAME_PROTECTION_DEFAULT)
 366                 bss->ieee80211w = ssid->ieee80211w;
 367 #endif /* CONFIG_IEEE80211W */
 368
 369 #ifdef CONFIG_WPS
 370         /*
 371          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 372          * require user interaction to actually use it. Only the internal
 373          * Registrar is supported.
 374          */
 375         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 376             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 377                 goto no_wps;
 378         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 379             (!(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) ||
 380              !(bss->wpa & 2)))
 381                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 382                               * configuration */
 383         bss->eap_server = 1;
 384
 385         if (!ssid->ignore_broadcast_ssid)
 386                 bss->wps_state = 2;
 387
 388         bss->ap_setup_locked = 2;
 389         if (wpa_s->conf->config_methods)
 390                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 391         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 392                   WPS_DEV_TYPE_LEN);
 393         if (wpa_s->conf->device_name) {
 394                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 395                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 396         }
 397         if (wpa_s->conf->manufacturer)
 398                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 399         if (wpa_s->conf->model_name)
 400                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 401         if (wpa_s->conf->model_number)
 402                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 403         if (wpa_s->conf->serial_number)
 404                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 405         if (is_nil_uuid(wpa_s->conf->uuid))
 406                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 407         else
 408                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 409         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 410         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 411 no_wps:
 412 #endif /* CONFIG_WPS */
 413
 414         if (wpa_s->max_stations &&
 415             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 416                 bss->max_num_sta = wpa_s->max_stations;
 417         else
 418                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 419
 420         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 421
 422         if (wpa_s->conf->ap_vendor_elements) {
 423                 bss->vendor_elements =
 424                         wpabuf_dup(wpa_s->conf->ap_vendor_elements);
 425         }
 426
 427         return 0;
 428 }
 429
 430
 431 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 432 {
 433 #ifdef CONFIG_P2P
 434         struct wpa_supplicant *wpa_s = ctx;
 435         const struct ieee80211_mgmt *mgmt;
 436
 437         mgmt = (const struct ieee80211_mgmt *) buf;
 438         if (len < IEEE80211_HDRLEN + 1)
 439                 return;
 440         if (mgmt->u.action.category != WLAN_ACTION_PUBLIC)
 441                 return;
 442         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 443                            mgmt->u.action.category,
 444                            buf + IEEE80211_HDRLEN + 1,
 445                            len - IEEE80211_HDRLEN - 1, freq);
 446 #endif /* CONFIG_P2P */
 447 }
 448
 449
 450 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 451                             union wps_event_data *data)
 452 {
 453 #ifdef CONFIG_P2P
 454         struct wpa_supplicant *wpa_s = ctx;
 455
 456         if (event == WPS_EV_FAIL) {
 457                 struct wps_event_fail *fail = &data->fail;
 458
 459                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 460                     wpa_s == wpa_s->global->p2p_group_formation) {
 461                         /*
 462                          * src/ap/wps_hostapd.c has already sent this on the
 463                          * main interface, so only send on the parent interface
 464                          * here if needed.
 465                          */
 466                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 467                                 "msg=%d config_error=%d",
 468                                 fail->msg, fail->config_error);
 469                 }
 470                 wpas_p2p_wps_failed(wpa_s, fail);
 471         }
 472 #endif /* CONFIG_P2P */
 473 }
 474
 475
 476 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 477                                  int authorized, const u8 *p2p_dev_addr)
 478 {
 479         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 480 }
 481
 482
 483 #ifdef CONFIG_P2P
 484 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
 485                           const u8 *psk, size_t psk_len)
 486 {
 487
 488         struct wpa_supplicant *wpa_s = ctx;
 489         if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
 490                 return;
 491         wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
 492 }
 493 #endif /* CONFIG_P2P */
 494
 495
 496 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 497 {
 498 #ifdef CONFIG_P2P
 499         struct wpa_supplicant *wpa_s = ctx;
 500         const struct ieee80211_mgmt *mgmt;
 501
 502         mgmt = (const struct ieee80211_mgmt *) buf;
 503         if (len < IEEE80211_HDRLEN + 1)
 504                 return -1;
 505         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 506                            mgmt->u.action.category,
 507                            buf + IEEE80211_HDRLEN + 1,
 508                            len - IEEE80211_HDRLEN - 1, freq);
 509 #endif /* CONFIG_P2P */
 510         return 0;
 511 }
 512
 513
 514 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 515                            const u8 *bssid, const u8 *ie, size_t ie_len,
 516                            int ssi_signal)
 517 {
 518         struct wpa_supplicant *wpa_s = ctx;
 519         unsigned int freq = 0;
 520
 521         if (wpa_s->ap_iface)
 522                 freq = wpa_s->ap_iface->freq;
 523
 524         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 525                                      freq, ssi_signal);
 526 }
 527
 528
 529 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 530                                   const u8 *uuid_e)
 531 {
 532         struct wpa_supplicant *wpa_s = ctx;
 533         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 534 }
 535
 536
 537 static void wpas_ap_configured_cb(void *ctx)
 538 {
 539         struct wpa_supplicant *wpa_s = ctx;
 540
 541         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 542
 543         if (wpa_s->ap_configured_cb)
 544                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 545                                         wpa_s->ap_configured_cb_data);
 546 }
 547
 548
 549 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 550                              struct wpa_ssid *ssid)
 551 {
 552         struct wpa_driver_associate_params params;
 553         struct hostapd_iface *hapd_iface;
 554         struct hostapd_config *conf;
 555         size_t i;
 556
 557         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 558                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 559                 return -1;
 560         }
 561
 562         wpa_supplicant_ap_deinit(wpa_s);
 563
 564         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 565                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 566
 567         os_memset(&params, 0, sizeof(params));
 568         params.ssid = ssid->ssid;
 569         params.ssid_len = ssid->ssid_len;
 570         switch (ssid->mode) {
 571         case WPAS_MODE_AP:
 572         case WPAS_MODE_P2P_GO:
 573         case WPAS_MODE_P2P_GROUP_FORMATION:
 574                 params.mode = IEEE80211_MODE_AP;
 575                 break;
 576         default:
 577                 return -1;
 578         }
 579         if (ssid->frequency == 0)
 580                 ssid->frequency = 2462; /* default channel 11 */
 581         params.freq.freq = ssid->frequency;
 582
 583         params.wpa_proto = ssid->proto;
 584         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 585                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 586         else
 587                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 588         params.key_mgmt_suite = wpa_s->key_mgmt;
 589
 590         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
 591                                                           1);
 592         if (wpa_s->pairwise_cipher < 0) {
 593                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 594                            "cipher.");
 595                 return -1;
 596         }
 597         params.pairwise_suite = wpa_s->pairwise_cipher;
 598         params.group_suite = params.pairwise_suite;
 599
 600 #ifdef CONFIG_P2P
 601         if (ssid->mode == WPAS_MODE_P2P_GO ||
 602             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 603                 params.p2p = 1;
 604 #endif /* CONFIG_P2P */
 605
 606         if (wpa_s->parent->set_ap_uapsd)
 607                 params.uapsd = wpa_s->parent->ap_uapsd;
 608         else if (params.p2p && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
 609                 params.uapsd = 1; /* mandatory for P2P GO */
 610         else
 611                 params.uapsd = -1;
 612
 613         if (ieee80211_is_dfs(params.freq.freq))
 614                 params.freq.freq = 0; /* set channel after CAC */
 615
 616         if (wpa_drv_associate(wpa_s, &params) < 0) {
 617                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 618                 return -1;
 619         }
 620
 621         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 622         if (hapd_iface == NULL)
 623                 return -1;
 624         hapd_iface->owner = wpa_s;
 625         hapd_iface->drv_flags = wpa_s->drv_flags;
 626         hapd_iface->smps_modes = wpa_s->drv_smps_modes;
 627         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 628         hapd_iface->extended_capa = wpa_s->extended_capa;
 629         hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
 630         hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
 631
 632         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 633         if (conf == NULL) {
 634                 wpa_supplicant_ap_deinit(wpa_s);
 635                 return -1;
 636         }
 637
 638         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 639                   wpa_s->conf->wmm_ac_params,
 640                   sizeof(wpa_s->conf->wmm_ac_params));
 641
 642         if (params.uapsd > 0) {
 643                 conf->bss[0]->wmm_enabled = 1;
 644                 conf->bss[0]->wmm_uapsd = 1;
 645         }
 646
 647         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 648                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 649                 wpa_supplicant_ap_deinit(wpa_s);
 650                 return -1;
 651         }
 652
 653 #ifdef CONFIG_P2P
 654         if (ssid->mode == WPAS_MODE_P2P_GO)
 655                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 656         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 657                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 658                         P2P_GROUP_FORMATION;
 659 #endif /* CONFIG_P2P */
 660
 661         hapd_iface->num_bss = conf->num_bss;
 662         hapd_iface->bss = os_calloc(conf->num_bss,
 663                                     sizeof(struct hostapd_data *));
 664         if (hapd_iface->bss == NULL) {
 665                 wpa_supplicant_ap_deinit(wpa_s);
 666                 return -1;
 667         }
 668
 669         for (i = 0; i < conf->num_bss; i++) {
 670                 hapd_iface->bss[i] =
 671                         hostapd_alloc_bss_data(hapd_iface, conf,
 672                                                conf->bss[i]);
 673                 if (hapd_iface->bss[i] == NULL) {
 674                         wpa_supplicant_ap_deinit(wpa_s);
 675                         return -1;
 676                 }
 677
 678                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 679                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 680                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 681                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 682                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 683                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 684                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 685                                              ap_probe_req_rx, wpa_s);
 686                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 687                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 688                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 689                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 690                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 691                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 692 #ifdef CONFIG_P2P
 693                 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
 694                 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
 695                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 696                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 697                                                                     ssid);
 698 #endif /* CONFIG_P2P */
 699                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 700                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 701 #ifdef CONFIG_TESTING_OPTIONS
 702                 hapd_iface->bss[i]->ext_eapol_frame_io =
 703                         wpa_s->ext_eapol_frame_io;
 704 #endif /* CONFIG_TESTING_OPTIONS */
 705         }
 706
 707         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 708         hapd_iface->bss[0]->driver = wpa_s->driver;
 709         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 710
 711         wpa_s->current_ssid = ssid;
 712         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 713         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 714         wpa_s->assoc_freq = ssid->frequency;
 715
 716         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 717                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 718                 wpa_supplicant_ap_deinit(wpa_s);
 719                 return -1;
 720         }
 721
 722         return 0;
 723 }
 724
 725
 726 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 727 {
 728 #ifdef CONFIG_WPS
 729         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 730 #endif /* CONFIG_WPS */
 731
 732         if (wpa_s->ap_iface == NULL)
 733                 return;
 734
 735         wpa_s->current_ssid = NULL;
 736         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 737         wpa_s->assoc_freq = 0;
 738         wpas_p2p_ap_deinit(wpa_s);
 739         wpa_s->ap_iface->driver_ap_teardown =
 740                 !!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 741
 742         hostapd_interface_deinit(wpa_s->ap_iface);
 743         hostapd_interface_free(wpa_s->ap_iface);
 744         wpa_s->ap_iface = NULL;
 745         wpa_drv_deinit_ap(wpa_s);
 746         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
 747                 " reason=%d locally_generated=1",
 748                 MAC2STR(wpa_s->own_addr), WLAN_REASON_DEAUTH_LEAVING);
 749 }
 750
 751
 752 void ap_tx_status(void *ctx, const u8 *addr,
 753                   const u8 *buf, size_t len, int ack)
 754 {
 755 #ifdef NEED_AP_MLME
 756         struct wpa_supplicant *wpa_s = ctx;
 757         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 758 #endif /* NEED_AP_MLME */
 759 }
 760
 761
 762 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 763                         const u8 *data, size_t len, int ack)
 764 {
 765 #ifdef NEED_AP_MLME
 766         struct wpa_supplicant *wpa_s = ctx;
 767         if (!wpa_s->ap_iface)
 768                 return;
 769         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 770 #endif /* NEED_AP_MLME */
 771 }
 772
 773
 774 void ap_client_poll_ok(void *ctx, const u8 *addr)
 775 {
 776 #ifdef NEED_AP_MLME
 777         struct wpa_supplicant *wpa_s = ctx;
 778         if (wpa_s->ap_iface)
 779                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 780 #endif /* NEED_AP_MLME */
 781 }
 782
 783
 784 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 785 {
 786 #ifdef NEED_AP_MLME
 787         struct wpa_supplicant *wpa_s = ctx;
 788         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 789 #endif /* NEED_AP_MLME */
 790 }
 791
 792
 793 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 794 {
 795 #ifdef NEED_AP_MLME
 796         struct wpa_supplicant *wpa_s = ctx;
 797         struct hostapd_frame_info fi;
 798         os_memset(&fi, 0, sizeof(fi));
 799         fi.datarate = rx_mgmt->datarate;
 800         fi.ssi_signal = rx_mgmt->ssi_signal;
 801         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 802                         rx_mgmt->frame_len, &fi);
 803 #endif /* NEED_AP_MLME */
 804 }
 805
 806
 807 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 808 {
 809 #ifdef NEED_AP_MLME
 810         struct wpa_supplicant *wpa_s = ctx;
 811         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 812 #endif /* NEED_AP_MLME */
 813 }
 814
 815
 816 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 817                                 const u8 *src_addr, const u8 *buf, size_t len)
 818 {
 819         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 820 }
 821
 822
 823 #ifdef CONFIG_WPS
 824
 825 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 826                               const u8 *p2p_dev_addr)
 827 {
 828         if (!wpa_s->ap_iface)
 829                 return -1;
 830         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 831                                          p2p_dev_addr);
 832 }
 833
 834
 835 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 836 {
 837         struct wps_registrar *reg;
 838         int reg_sel = 0, wps_sta = 0;
 839
 840         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 841                 return -1;
 842
 843         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 844         reg_sel = wps_registrar_wps_cancel(reg);
 845         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 846                                   ap_sta_wps_cancel, NULL);
 847
 848         if (!reg_sel && !wps_sta) {
 849                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 850                            "time");
 851                 return -1;
 852         }
 853
 854         /*
 855          * There are 2 cases to return wps cancel as success:
 856          * 1. When wps cancel was initiated but no connection has been
 857          *    established with client yet.
 858          * 2. Client is in the middle of exchanging WPS messages.
 859          */
 860
 861         return 0;
 862 }
 863
 864
 865 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 866                               const char *pin, char *buf, size_t buflen,
 867                               int timeout)
 868 {
 869         int ret, ret_len = 0;
 870
 871         if (!wpa_s->ap_iface)
 872                 return -1;
 873
 874         if (pin == NULL) {
 875                 unsigned int rpin = wps_generate_pin();
 876                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 877                 if (os_snprintf_error(buflen, ret_len))
 878                         return -1;
 879                 pin = buf;
 880         } else if (buf) {
 881                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 882                 if (os_snprintf_error(buflen, ret_len))
 883                         return -1;
 884         }
 885
 886         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 887                                   timeout);
 888         if (ret)
 889                 return -1;
 890         return ret_len;
 891 }
 892
 893
 894 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 895 {
 896         struct wpa_supplicant *wpa_s = eloop_data;
 897         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 898         wpas_wps_ap_pin_disable(wpa_s);
 899 }
 900
 901
 902 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 903 {
 904         struct hostapd_data *hapd;
 905
 906         if (wpa_s->ap_iface == NULL)
 907                 return;
 908         hapd = wpa_s->ap_iface->bss[0];
 909         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 910         hapd->ap_pin_failures = 0;
 911         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 912         if (timeout > 0)
 913                 eloop_register_timeout(timeout, 0,
 914                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 915 }
 916
 917
 918 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 919 {
 920         struct hostapd_data *hapd;
 921
 922         if (wpa_s->ap_iface == NULL)
 923                 return;
 924         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 925         hapd = wpa_s->ap_iface->bss[0];
 926         os_free(hapd->conf->ap_pin);
 927         hapd->conf->ap_pin = NULL;
 928         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 929 }
 930
 931
 932 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 933 {
 934         struct hostapd_data *hapd;
 935         unsigned int pin;
 936         char pin_txt[9];
 937
 938         if (wpa_s->ap_iface == NULL)
 939                 return NULL;
 940         hapd = wpa_s->ap_iface->bss[0];
 941         pin = wps_generate_pin();
 942         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 943         os_free(hapd->conf->ap_pin);
 944         hapd->conf->ap_pin = os_strdup(pin_txt);
 945         if (hapd->conf->ap_pin == NULL)
 946                 return NULL;
 947         wpas_wps_ap_pin_enable(wpa_s, timeout);
 948
 949         return hapd->conf->ap_pin;
 950 }
 951
 952
 953 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 954 {
 955         struct hostapd_data *hapd;
 956         if (wpa_s->ap_iface == NULL)
 957                 return NULL;
 958         hapd = wpa_s->ap_iface->bss[0];
 959         return hapd->conf->ap_pin;
 960 }
 961
 962
 963 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 964                         int timeout)
 965 {
 966         struct hostapd_data *hapd;
 967         char pin_txt[9];
 968         int ret;
 969
 970         if (wpa_s->ap_iface == NULL)
 971                 return -1;
 972         hapd = wpa_s->ap_iface->bss[0];
 973         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 974         if (os_snprintf_error(sizeof(pin_txt), ret))
 975                 return -1;
 976         os_free(hapd->conf->ap_pin);
 977         hapd->conf->ap_pin = os_strdup(pin_txt);
 978         if (hapd->conf->ap_pin == NULL)
 979                 return -1;
 980         wpas_wps_ap_pin_enable(wpa_s, timeout);
 981
 982         return 0;
 983 }
 984
 985
 986 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 987 {
 988         struct hostapd_data *hapd;
 989
 990         if (wpa_s->ap_iface == NULL)
 991                 return;
 992         hapd = wpa_s->ap_iface->bss[0];
 993
 994         /*
 995          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 996          * PIN if this happens multiple times to slow down brute force attacks.
 997          */
 998         hapd->ap_pin_failures++;
 999         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
1000                    hapd->ap_pin_failures);
1001         if (hapd->ap_pin_failures < 3)
1002                 return;
1003
1004         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
1005         hapd->ap_pin_failures = 0;
1006         os_free(hapd->conf->ap_pin);
1007         hapd->conf->ap_pin = NULL;
1008 }
1009
1010
1011 #ifdef CONFIG_WPS_NFC
1012
1013 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
1014                                              int ndef)
1015 {
1016         struct hostapd_data *hapd;
1017
1018         if (wpa_s->ap_iface == NULL)
1019                 return NULL;
1020         hapd = wpa_s->ap_iface->bss[0];
1021         return hostapd_wps_nfc_config_token(hapd, ndef);
1022 }
1023
1024
1025 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
1026                                              int ndef)
1027 {
1028         struct hostapd_data *hapd;
1029
1030         if (wpa_s->ap_iface == NULL)
1031                 return NULL;
1032         hapd = wpa_s->ap_iface->bss[0];
1033         return hostapd_wps_nfc_hs_cr(hapd, ndef);
1034 }
1035
1036
1037 int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
1038                                     const struct wpabuf *req,
1039                                     const struct wpabuf *sel)
1040 {
1041         struct hostapd_data *hapd;
1042
1043         if (wpa_s->ap_iface == NULL)
1044                 return -1;
1045         hapd = wpa_s->ap_iface->bss[0];
1046         return hostapd_wps_nfc_report_handover(hapd, req, sel);
1047 }
1048
1049 #endif /* CONFIG_WPS_NFC */
1050
1051 #endif /* CONFIG_WPS */
1052
1053
1054 #ifdef CONFIG_CTRL_IFACE
1055
1056 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
1057                             char *buf, size_t buflen)
1058 {
1059         struct hostapd_data *hapd;
1060
1061         if (wpa_s->ap_iface)
1062                 hapd = wpa_s->ap_iface->bss[0];
1063         else if (wpa_s->ifmsh)
1064                 hapd = wpa_s->ifmsh->bss[0];
1065         else
1066                 return -1;
1067         return hostapd_ctrl_iface_sta_first(hapd, buf, buflen);
1068 }
1069
1070
1071 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
1072                       char *buf, size_t buflen)
1073 {
1074         struct hostapd_data *hapd;
1075
1076         if (wpa_s->ap_iface)
1077                 hapd = wpa_s->ap_iface->bss[0];
1078         else if (wpa_s->ifmsh)
1079                 hapd = wpa_s->ifmsh->bss[0];
1080         else
1081                 return -1;
1082         return hostapd_ctrl_iface_sta(hapd, txtaddr, buf, buflen);
1083 }
1084
1085
1086 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
1087                            char *buf, size_t buflen)
1088 {
1089         struct hostapd_data *hapd;
1090
1091         if (wpa_s->ap_iface)
1092                 hapd = wpa_s->ap_iface->bss[0];
1093         else if (wpa_s->ifmsh)
1094                 hapd = wpa_s->ifmsh->bss[0];
1095         else
1096                 return -1;
1097         return hostapd_ctrl_iface_sta_next(hapd, txtaddr, buf, buflen);
1098 }
1099
1100
1101 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
1102                                    const char *txtaddr)
1103 {
1104         if (wpa_s->ap_iface == NULL)
1105                 return -1;
1106         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
1107                                                txtaddr);
1108 }
1109
1110
1111 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
1112                                      const char *txtaddr)
1113 {
1114         if (wpa_s->ap_iface == NULL)
1115                 return -1;
1116         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
1117                                                  txtaddr);
1118 }
1119
1120
1121 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
1122                                  size_t buflen, int verbose)
1123 {
1124         char *pos = buf, *end = buf + buflen;
1125         int ret;
1126         struct hostapd_bss_config *conf;
1127
1128         if (wpa_s->ap_iface == NULL)
1129                 return -1;
1130
1131         conf = wpa_s->ap_iface->bss[0]->conf;
1132         if (conf->wpa == 0)
1133                 return 0;
1134
1135         ret = os_snprintf(pos, end - pos,
1136                           "pairwise_cipher=%s\n"
1137                           "group_cipher=%s\n"
1138                           "key_mgmt=%s\n",
1139                           wpa_cipher_txt(conf->rsn_pairwise),
1140                           wpa_cipher_txt(conf->wpa_group),
1141                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
1142                                            conf->wpa));
1143         if (os_snprintf_error(end - pos, ret))
1144                 return pos - buf;
1145         pos += ret;
1146         return pos - buf;
1147 }
1148
1149 #endif /* CONFIG_CTRL_IFACE */
1150
1151
1152 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1153 {
1154         struct hostapd_iface *iface = wpa_s->ap_iface;
1155         struct wpa_ssid *ssid = wpa_s->current_ssid;
1156         struct hostapd_data *hapd;
1157
1158         if (ssid == NULL || wpa_s->ap_iface == NULL ||
1159             ssid->mode == WPAS_MODE_INFRA ||
1160             ssid->mode == WPAS_MODE_IBSS)
1161                 return -1;
1162
1163 #ifdef CONFIG_P2P
1164         if (ssid->mode == WPAS_MODE_P2P_GO)
1165                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1166         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1167                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1168                         P2P_GROUP_FORMATION;
1169 #endif /* CONFIG_P2P */
1170
1171         hapd = iface->bss[0];
1172         if (hapd->drv_priv == NULL)
1173                 return -1;
1174         ieee802_11_set_beacons(iface);
1175         hostapd_set_ap_wps_ie(hapd);
1176
1177         return 0;
1178 }
1179
1180
1181 int ap_switch_channel(struct wpa_supplicant *wpa_s,
1182                       struct csa_settings *settings)
1183 {
1184 #ifdef NEED_AP_MLME
1185         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1186                 return -1;
1187
1188         return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings);
1189 #else /* NEED_AP_MLME */
1190         return -1;
1191 #endif /* NEED_AP_MLME */
1192 }
1193
1194
1195 #ifdef CONFIG_CTRL_IFACE
1196 int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos)
1197 {
1198         struct csa_settings settings;
1199         int ret = hostapd_parse_csa_settings(pos, &settings);
1200
1201         if (ret)
1202                 return ret;
1203
1204         return ap_switch_channel(wpa_s, &settings);
1205 }
1206 #endif /* CONFIG_CTRL_IFACE */
1207
1208
1209 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1210                        int offset, int width, int cf1, int cf2)
1211 {
1212         if (!wpa_s->ap_iface)
1213                 return;
1214
1215         wpa_s->assoc_freq = freq;
1216         if (wpa_s->current_ssid)
1217                 wpa_s->current_ssid->frequency = freq;
1218         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht,
1219                                 offset, width, cf1, cf2);
1220 }
1221
1222
1223 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1224                                       const u8 *addr)
1225 {
1226         struct hostapd_data *hapd;
1227         struct hostapd_bss_config *conf;
1228
1229         if (!wpa_s->ap_iface)
1230                 return -1;
1231
1232         if (addr)
1233                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1234                            MAC2STR(addr));
1235         else
1236                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1237
1238         hapd = wpa_s->ap_iface->bss[0];
1239         conf = hapd->conf;
1240
1241         os_free(conf->accept_mac);
1242         conf->accept_mac = NULL;
1243         conf->num_accept_mac = 0;
1244         os_free(conf->deny_mac);
1245         conf->deny_mac = NULL;
1246         conf->num_deny_mac = 0;
1247
1248         if (addr == NULL) {
1249                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1250                 return 0;
1251         }
1252
1253         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1254         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1255         if (conf->accept_mac == NULL)
1256                 return -1;
1257         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1258         conf->num_accept_mac = 1;
1259
1260         return 0;
1261 }
1262
1263
1264 #ifdef CONFIG_WPS_NFC
1265 int wpas_ap_wps_add_nfc_pw(struct wpa_supplicant *wpa_s, u16 pw_id,
1266                            const struct wpabuf *pw, const u8 *pubkey_hash)
1267 {
1268         struct hostapd_data *hapd;
1269         struct wps_context *wps;
1270
1271         if (!wpa_s->ap_iface)
1272                 return -1;
1273         hapd = wpa_s->ap_iface->bss[0];
1274         wps = hapd->wps;
1275
1276         if (wpa_s->parent->conf->wps_nfc_dh_pubkey == NULL ||
1277             wpa_s->parent->conf->wps_nfc_dh_privkey == NULL) {
1278                 wpa_printf(MSG_DEBUG, "P2P: No NFC DH key known");
1279                 return -1;
1280         }
1281
1282         dh5_free(wps->dh_ctx);
1283         wpabuf_free(wps->dh_pubkey);
1284         wpabuf_free(wps->dh_privkey);
1285         wps->dh_privkey = wpabuf_dup(
1286                 wpa_s->parent->conf->wps_nfc_dh_privkey);
1287         wps->dh_pubkey = wpabuf_dup(
1288                 wpa_s->parent->conf->wps_nfc_dh_pubkey);
1289         if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
1290                 wps->dh_ctx = NULL;
1291                 wpabuf_free(wps->dh_pubkey);
1292                 wps->dh_pubkey = NULL;
1293                 wpabuf_free(wps->dh_privkey);
1294                 wps->dh_privkey = NULL;
1295                 return -1;
1296         }
1297         wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
1298         if (wps->dh_ctx == NULL)
1299                 return -1;
1300
1301         return wps_registrar_add_nfc_pw_token(hapd->wps->registrar, pubkey_hash,
1302                                               pw_id,
1303                                               pw ? wpabuf_head(pw) : NULL,
1304                                               pw ? wpabuf_len(pw) : 0, 1);
1305 }
1306 #endif /* CONFIG_WPS_NFC */
1307
1308
1309 #ifdef CONFIG_CTRL_IFACE
1310 int wpas_ap_stop_ap(struct wpa_supplicant *wpa_s)
1311 {
1312         struct hostapd_data *hapd;
1313
1314         if (!wpa_s->ap_iface)
1315                 return -1;
1316         hapd = wpa_s->ap_iface->bss[0];
1317         return hostapd_ctrl_iface_stop_ap(hapd);
1318 }
1319 #endif /* CONFIG_CTRL_IFACE */
1320
1321
1322 #ifdef NEED_AP_MLME
1323 void wpas_event_dfs_radar_detected(struct wpa_supplicant *wpa_s,
1324                                    struct dfs_event *radar)
1325 {
1326         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1327                 return;
1328         wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1329         hostapd_dfs_radar_detected(wpa_s->ap_iface, radar->freq,
1330                                    radar->ht_enabled, radar->chan_offset,
1331                                    radar->chan_width,
1332                                    radar->cf1, radar->cf2);
1333 }
1334
1335
1336 void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
1337                                 struct dfs_event *radar)
1338 {
1339         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1340                 return;
1341         wpa_printf(MSG_DEBUG, "DFS CAC started on %d MHz", radar->freq);
1342         hostapd_dfs_start_cac(wpa_s->ap_iface, radar->freq,
1343                               radar->ht_enabled, radar->chan_offset,
1344                               radar->chan_width, radar->cf1, radar->cf2);
1345 }
1346
1347
1348 void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
1349                                  struct dfs_event *radar)
1350 {
1351         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1352                 return;
1353         wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1354         hostapd_dfs_complete_cac(wpa_s->ap_iface, 1, radar->freq,
1355                                  radar->ht_enabled, radar->chan_offset,
1356                                  radar->chan_width, radar->cf1, radar->cf2);
1357 }
1358
1359
1360 void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
1361                                 struct dfs_event *radar)
1362 {
1363         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1364                 return;
1365         wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1366         hostapd_dfs_complete_cac(wpa_s->ap_iface, 0, radar->freq,
1367                                  radar->ht_enabled, radar->chan_offset,
1368                                  radar->chan_width, radar->cf1, radar->cf2);
1369 }
1370
1371
1372 void wpas_event_dfs_cac_nop_finished(struct wpa_supplicant *wpa_s,
1373                                      struct dfs_event *radar)
1374 {
1375         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1376                 return;
1377         wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1378         hostapd_dfs_nop_finished(wpa_s->ap_iface, radar->freq,
1379                                  radar->ht_enabled, radar->chan_offset,
1380                                  radar->chan_width, radar->cf1, radar->cf2);
1381 }
1382 #endif /* NEED_AP_MLME */
1383
1384
1385 void ap_periodic(struct wpa_supplicant *wpa_s)
1386 {
1387         if (wpa_s->ap_iface)
1388                 hostapd_periodic_iface(wpa_s->ap_iface);
1389 }