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         switch (conf->vht_oper_chwidth) {
  60         case VHT_CHANWIDTH_80MHZ:
  61         case VHT_CHANWIDTH_80P80MHZ:
  62                 center_chan = wpas_p2p_get_vht80_center(wpa_s, mode, channel);
  63                 break;
  64         case VHT_CHANWIDTH_160MHZ:
  65                 center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel);
  66                 break;
  67         default:
  68                 /*
  69                  * conf->vht_oper_chwidth might not be set for non-P2P GO cases,
  70                  * try oper_cwidth 160 MHz first then VHT 80 MHz, if 160 MHz is
  71                  * not supported.
  72                  */
  73                 conf->vht_oper_chwidth = VHT_CHANWIDTH_160MHZ;
  74                 center_chan = wpas_p2p_get_vht160_center(wpa_s, mode, channel);
  75                 if (!center_chan) {
  76                         conf->vht_oper_chwidth = VHT_CHANWIDTH_80MHZ;
  77                         center_chan = wpas_p2p_get_vht80_center(wpa_s, mode,
  78                                                                 channel);
  79                 }
  80                 break;
  81         }
  82         if (!center_chan)
  83                 goto no_vht;
  84
  85         conf->vht_oper_centr_freq_seg0_idx = center_chan;
  86         return;
  87
  88 no_vht:
  89         conf->vht_oper_centr_freq_seg0_idx =
  90                 channel + conf->secondary_channel * 2;
  91 #else /* CONFIG_P2P */
  92         conf->vht_oper_centr_freq_seg0_idx =
  93                 conf->channel + conf->secondary_channel * 2;
  94 #endif /* CONFIG_P2P */
  95         conf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT;
  96 }
  97 #endif /* CONFIG_IEEE80211N */
  98
  99
 100 int wpa_supplicant_conf_ap_ht(struct wpa_supplicant *wpa_s,
 101                               struct wpa_ssid *ssid,
 102                               struct hostapd_config *conf)
 103 {
 104         conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
 105                                                &conf->channel);
 106
 107         if (conf->hw_mode == NUM_HOSTAPD_MODES) {
 108                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
 109                            ssid->frequency);
 110                 return -1;
 111         }
 112
 113         /* TODO: enable HT40 if driver supports it;
 114          * drop to 11b if driver does not support 11g */
 115
 116 #ifdef CONFIG_IEEE80211N
 117         /*
 118          * Enable HT20 if the driver supports it, by setting conf->ieee80211n
 119          * and a mask of allowed capabilities within conf->ht_capab.
 120          * Using default config settings for: conf->ht_op_mode_fixed,
 121          * conf->secondary_channel, conf->require_ht
 122          */
 123         if (wpa_s->hw.modes) {
 124                 struct hostapd_hw_modes *mode = NULL;
 125                 int i, no_ht = 0;
 126                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
 127                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
 128                                 mode = &wpa_s->hw.modes[i];
 129                                 break;
 130                         }
 131                 }
 132
 133 #ifdef CONFIG_HT_OVERRIDES
 134                 if (ssid->disable_ht) {
 135                         conf->ieee80211n = 0;
 136                         conf->ht_capab = 0;
 137                         no_ht = 1;
 138                 }
 139 #endif /* CONFIG_HT_OVERRIDES */
 140
 141                 if (!no_ht && mode && mode->ht_capab) {
 142                         conf->ieee80211n = 1;
 143 #ifdef CONFIG_P2P
 144                         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A &&
 145                             (mode->ht_capab &
 146                              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
 147                             ssid->ht40)
 148                                 conf->secondary_channel =
 149                                         wpas_p2p_get_ht40_mode(wpa_s, mode,
 150                                                                conf->channel);
 151                         if (conf->secondary_channel)
 152                                 conf->ht_capab |=
 153                                         HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 154 #endif /* CONFIG_P2P */
 155
 156                         /*
 157                          * white-list capabilities that won't cause issues
 158                          * to connecting stations, while leaving the current
 159                          * capabilities intact (currently disabled SMPS).
 160                          */
 161                         conf->ht_capab |= mode->ht_capab &
 162                                 (HT_CAP_INFO_GREEN_FIELD |
 163                                  HT_CAP_INFO_SHORT_GI20MHZ |
 164                                  HT_CAP_INFO_SHORT_GI40MHZ |
 165                                  HT_CAP_INFO_RX_STBC_MASK |
 166                                  HT_CAP_INFO_TX_STBC |
 167                                  HT_CAP_INFO_MAX_AMSDU_SIZE);
 168
 169                         if (mode->vht_capab && ssid->vht) {
 170                                 conf->ieee80211ac = 1;
 171                                 wpas_conf_ap_vht(wpa_s, conf, mode);
 172                         }
 173                 }
 174         }
 175
 176         if (conf->secondary_channel) {
 177                 struct wpa_supplicant *iface;
 178
 179                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
 180                 {
 181                         if (iface == wpa_s ||
 182                             iface->wpa_state < WPA_AUTHENTICATING ||
 183                             (int) iface->assoc_freq != ssid->frequency)
 184                                 continue;
 185
 186                         /*
 187                          * Do not allow 40 MHz co-ex PRI/SEC switch to force us
 188                          * to change our PRI channel since we have an existing,
 189                          * concurrent connection on that channel and doing
 190                          * multi-channel concurrency is likely to cause more
 191                          * harm than using different PRI/SEC selection in
 192                          * environment with multiple BSSes on these two channels
 193                          * with mixed 20 MHz or PRI channel selection.
 194                          */
 195                         conf->no_pri_sec_switch = 1;
 196                 }
 197         }
 198 #endif /* CONFIG_IEEE80211N */
 199
 200         return 0;
 201 }
 202
 203
 204 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
 205                                   struct wpa_ssid *ssid,
 206                                   struct hostapd_config *conf)
 207 {
 208         struct hostapd_bss_config *bss = conf->bss[0];
 209
 210         conf->driver = wpa_s->driver;
 211
 212         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
 213
 214         if (wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf))
 215                 return -1;
 216
 217 #ifdef CONFIG_ACS
 218         if (ssid->acs) {
 219                 /* Setting channel to 0 in order to enable ACS */
 220                 conf->channel = 0;
 221                 wpa_printf(MSG_DEBUG, "Use automatic channel selection");
 222         }
 223 #endif /* CONFIG_ACS */
 224
 225         if (ieee80211_is_dfs(ssid->frequency) && wpa_s->conf->country[0]) {
 226                 conf->ieee80211h = 1;
 227                 conf->ieee80211d = 1;
 228                 conf->country[0] = wpa_s->conf->country[0];
 229                 conf->country[1] = wpa_s->conf->country[1];
 230         }
 231
 232 #ifdef CONFIG_P2P
 233         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G &&
 234             (ssid->mode == WPAS_MODE_P2P_GO ||
 235              ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)) {
 236                 /* Remove 802.11b rates from supported and basic rate sets */
 237                 int *list = os_malloc(4 * sizeof(int));
 238                 if (list) {
 239                         list[0] = 60;
 240                         list[1] = 120;
 241                         list[2] = 240;
 242                         list[3] = -1;
 243                 }
 244                 conf->basic_rates = list;
 245
 246                 list = os_malloc(9 * sizeof(int));
 247                 if (list) {
 248                         list[0] = 60;
 249                         list[1] = 90;
 250                         list[2] = 120;
 251                         list[3] = 180;
 252                         list[4] = 240;
 253                         list[5] = 360;
 254                         list[6] = 480;
 255                         list[7] = 540;
 256                         list[8] = -1;
 257                 }
 258                 conf->supported_rates = list;
 259         }
 260
 261         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 262         bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
 263
 264         if (ssid->p2p_group) {
 265                 os_memcpy(bss->ip_addr_go, wpa_s->parent->conf->ip_addr_go, 4);
 266                 os_memcpy(bss->ip_addr_mask, wpa_s->parent->conf->ip_addr_mask,
 267                           4);
 268                 os_memcpy(bss->ip_addr_start,
 269                           wpa_s->parent->conf->ip_addr_start, 4);
 270                 os_memcpy(bss->ip_addr_end, wpa_s->parent->conf->ip_addr_end,
 271                           4);
 272         }
 273 #endif /* CONFIG_P2P */
 274
 275         if (ssid->ssid_len == 0) {
 276                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 277                 return -1;
 278         }
 279         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 280         bss->ssid.ssid_len = ssid->ssid_len;
 281         bss->ssid.ssid_set = 1;
 282
 283         bss->ignore_broadcast_ssid = ssid->ignore_broadcast_ssid;
 284
 285         if (ssid->auth_alg)
 286                 bss->auth_algs = ssid->auth_alg;
 287
 288         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 289                 bss->wpa = ssid->proto;
 290         bss->wpa_key_mgmt = ssid->key_mgmt;
 291         bss->wpa_pairwise = ssid->pairwise_cipher;
 292         if (ssid->psk_set) {
 293                 bin_clear_free(bss->ssid.wpa_psk, sizeof(*bss->ssid.wpa_psk));
 294                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 295                 if (bss->ssid.wpa_psk == NULL)
 296                         return -1;
 297                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 298                 bss->ssid.wpa_psk->group = 1;
 299         } else if (ssid->passphrase) {
 300                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 301         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 302                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 303                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 304                 int i;
 305                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 306                         if (ssid->wep_key_len[i] == 0)
 307                                 continue;
 308                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 309                         if (wep->key[i] == NULL)
 310                                 return -1;
 311                         os_memcpy(wep->key[i], ssid->wep_key[i],
 312                                   ssid->wep_key_len[i]);
 313                         wep->len[i] = ssid->wep_key_len[i];
 314                 }
 315                 wep->idx = ssid->wep_tx_keyidx;
 316                 wep->keys_set = 1;
 317         }
 318
 319         if (ssid->ap_max_inactivity)
 320                 bss->ap_max_inactivity = ssid->ap_max_inactivity;
 321
 322         if (ssid->dtim_period)
 323                 bss->dtim_period = ssid->dtim_period;
 324         else if (wpa_s->conf->dtim_period)
 325                 bss->dtim_period = wpa_s->conf->dtim_period;
 326
 327         if (ssid->beacon_int)
 328                 conf->beacon_int = ssid->beacon_int;
 329         else if (wpa_s->conf->beacon_int)
 330                 conf->beacon_int = wpa_s->conf->beacon_int;
 331
 332 #ifdef CONFIG_P2P
 333         if (ssid->mode == WPAS_MODE_P2P_GO ||
 334             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 335                 if (wpa_s->conf->p2p_go_ctwindow > conf->beacon_int) {
 336                         wpa_printf(MSG_INFO,
 337                                    "CTWindow (%d) is bigger than beacon interval (%d) - avoid configuring it",
 338                                    wpa_s->conf->p2p_go_ctwindow,
 339                                    conf->beacon_int);
 340                         conf->p2p_go_ctwindow = 0;
 341                 } else {
 342                         conf->p2p_go_ctwindow = wpa_s->conf->p2p_go_ctwindow;
 343                 }
 344         }
 345 #endif /* CONFIG_P2P */
 346
 347         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
 348                 bss->rsn_pairwise = bss->wpa_pairwise;
 349         bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
 350                                                     bss->rsn_pairwise);
 351
 352         if (bss->wpa && bss->ieee802_1x)
 353                 bss->ssid.security_policy = SECURITY_WPA;
 354         else if (bss->wpa)
 355                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 356         else if (bss->ieee802_1x) {
 357                 int cipher = WPA_CIPHER_NONE;
 358                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 359                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 360                 if (bss->default_wep_key_len)
 361                         cipher = bss->default_wep_key_len >= 13 ?
 362                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 363                 bss->wpa_group = cipher;
 364                 bss->wpa_pairwise = cipher;
 365                 bss->rsn_pairwise = cipher;
 366         } else if (bss->ssid.wep.keys_set) {
 367                 int cipher = WPA_CIPHER_WEP40;
 368                 if (bss->ssid.wep.len[0] >= 13)
 369                         cipher = WPA_CIPHER_WEP104;
 370                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 371                 bss->wpa_group = cipher;
 372                 bss->wpa_pairwise = cipher;
 373                 bss->rsn_pairwise = cipher;
 374         } else {
 375                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 376                 bss->wpa_group = WPA_CIPHER_NONE;
 377                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 378                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 379         }
 380
 381         if (bss->wpa_group_rekey < 86400 && (bss->wpa & 2) &&
 382             (bss->wpa_group == WPA_CIPHER_CCMP ||
 383              bss->wpa_group == WPA_CIPHER_GCMP ||
 384              bss->wpa_group == WPA_CIPHER_CCMP_256 ||
 385              bss->wpa_group == WPA_CIPHER_GCMP_256)) {
 386                 /*
 387                  * Strong ciphers do not need frequent rekeying, so increase
 388                  * the default GTK rekeying period to 24 hours.
 389                  */
 390                 bss->wpa_group_rekey = 86400;
 391         }
 392
 393 #ifdef CONFIG_IEEE80211W
 394         if (ssid->ieee80211w != MGMT_FRAME_PROTECTION_DEFAULT)
 395                 bss->ieee80211w = ssid->ieee80211w;
 396 #endif /* CONFIG_IEEE80211W */
 397
 398 #ifdef CONFIG_WPS
 399         /*
 400          * Enable WPS by default for open and WPA/WPA2-Personal network, but
 401          * require user interaction to actually use it. Only the internal
 402          * Registrar is supported.
 403          */
 404         if (bss->ssid.security_policy != SECURITY_WPA_PSK &&
 405             bss->ssid.security_policy != SECURITY_PLAINTEXT)
 406                 goto no_wps;
 407         if (bss->ssid.security_policy == SECURITY_WPA_PSK &&
 408             (!(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP)) ||
 409              !(bss->wpa & 2)))
 410                 goto no_wps; /* WPS2 does not allow WPA/TKIP-only
 411                               * configuration */
 412         bss->eap_server = 1;
 413
 414         if (!ssid->ignore_broadcast_ssid)
 415                 bss->wps_state = 2;
 416
 417         bss->ap_setup_locked = 2;
 418         if (wpa_s->conf->config_methods)
 419                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 420         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 421                   WPS_DEV_TYPE_LEN);
 422         if (wpa_s->conf->device_name) {
 423                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 424                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 425         }
 426         if (wpa_s->conf->manufacturer)
 427                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 428         if (wpa_s->conf->model_name)
 429                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 430         if (wpa_s->conf->model_number)
 431                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 432         if (wpa_s->conf->serial_number)
 433                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 434         if (is_nil_uuid(wpa_s->conf->uuid))
 435                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 436         else
 437                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 438         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 439         bss->pbc_in_m1 = wpa_s->conf->pbc_in_m1;
 440 no_wps:
 441 #endif /* CONFIG_WPS */
 442
 443         if (wpa_s->max_stations &&
 444             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 445                 bss->max_num_sta = wpa_s->max_stations;
 446         else
 447                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 448
 449         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 450
 451         if (wpa_s->conf->ap_vendor_elements) {
 452                 bss->vendor_elements =
 453                         wpabuf_dup(wpa_s->conf->ap_vendor_elements);
 454         }
 455
 456         return 0;
 457 }
 458
 459
 460 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 461 {
 462 #ifdef CONFIG_P2P
 463         struct wpa_supplicant *wpa_s = ctx;
 464         const struct ieee80211_mgmt *mgmt;
 465
 466         mgmt = (const struct ieee80211_mgmt *) buf;
 467         if (len < IEEE80211_HDRLEN + 1)
 468                 return;
 469         if (mgmt->u.action.category != WLAN_ACTION_PUBLIC)
 470                 return;
 471         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 472                            mgmt->u.action.category,
 473                            buf + IEEE80211_HDRLEN + 1,
 474                            len - IEEE80211_HDRLEN - 1, freq);
 475 #endif /* CONFIG_P2P */
 476 }
 477
 478
 479 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 480                             union wps_event_data *data)
 481 {
 482 #ifdef CONFIG_P2P
 483         struct wpa_supplicant *wpa_s = ctx;
 484
 485         if (event == WPS_EV_FAIL) {
 486                 struct wps_event_fail *fail = &data->fail;
 487
 488                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 489                     wpa_s == wpa_s->global->p2p_group_formation) {
 490                         /*
 491                          * src/ap/wps_hostapd.c has already sent this on the
 492                          * main interface, so only send on the parent interface
 493                          * here if needed.
 494                          */
 495                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 496                                 "msg=%d config_error=%d",
 497                                 fail->msg, fail->config_error);
 498                 }
 499                 wpas_p2p_wps_failed(wpa_s, fail);
 500         }
 501 #endif /* CONFIG_P2P */
 502 }
 503
 504
 505 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 506                                  int authorized, const u8 *p2p_dev_addr)
 507 {
 508         wpas_notify_sta_authorized(ctx, mac_addr, authorized, p2p_dev_addr);
 509 }
 510
 511
 512 #ifdef CONFIG_P2P
 513 static void ap_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr,
 514                           const u8 *psk, size_t psk_len)
 515 {
 516
 517         struct wpa_supplicant *wpa_s = ctx;
 518         if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL)
 519                 return;
 520         wpas_p2p_new_psk_cb(wpa_s, mac_addr, p2p_dev_addr, psk, psk_len);
 521 }
 522 #endif /* CONFIG_P2P */
 523
 524
 525 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 526 {
 527 #ifdef CONFIG_P2P
 528         struct wpa_supplicant *wpa_s = ctx;
 529         const struct ieee80211_mgmt *mgmt;
 530
 531         mgmt = (const struct ieee80211_mgmt *) buf;
 532         if (len < IEEE80211_HDRLEN + 1)
 533                 return -1;
 534         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 535                            mgmt->u.action.category,
 536                            buf + IEEE80211_HDRLEN + 1,
 537                            len - IEEE80211_HDRLEN - 1, freq);
 538 #endif /* CONFIG_P2P */
 539         return 0;
 540 }
 541
 542
 543 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 544                            const u8 *bssid, const u8 *ie, size_t ie_len,
 545                            int ssi_signal)
 546 {
 547         struct wpa_supplicant *wpa_s = ctx;
 548         unsigned int freq = 0;
 549
 550         if (wpa_s->ap_iface)
 551                 freq = wpa_s->ap_iface->freq;
 552
 553         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len,
 554                                      freq, ssi_signal);
 555 }
 556
 557
 558 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 559                                   const u8 *uuid_e)
 560 {
 561         struct wpa_supplicant *wpa_s = ctx;
 562         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 563 }
 564
 565
 566 static void wpas_ap_configured_cb(void *ctx)
 567 {
 568         struct wpa_supplicant *wpa_s = ctx;
 569
 570 #ifdef CONFIG_ACS
 571         if (wpa_s->current_ssid && wpa_s->current_ssid->acs)
 572                 wpa_s->assoc_freq = wpa_s->ap_iface->freq;
 573 #endif /* CONFIG_ACS */
 574
 575         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 576
 577         if (wpa_s->ap_configured_cb)
 578                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 579                                         wpa_s->ap_configured_cb_data);
 580 }
 581
 582
 583 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 584                              struct wpa_ssid *ssid)
 585 {
 586         struct wpa_driver_associate_params params;
 587         struct hostapd_iface *hapd_iface;
 588         struct hostapd_config *conf;
 589         size_t i;
 590
 591         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 592                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 593                 return -1;
 594         }
 595
 596         wpa_supplicant_ap_deinit(wpa_s);
 597
 598         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 599                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 600
 601         os_memset(&params, 0, sizeof(params));
 602         params.ssid = ssid->ssid;
 603         params.ssid_len = ssid->ssid_len;
 604         switch (ssid->mode) {
 605         case WPAS_MODE_AP:
 606         case WPAS_MODE_P2P_GO:
 607         case WPAS_MODE_P2P_GROUP_FORMATION:
 608                 params.mode = IEEE80211_MODE_AP;
 609                 break;
 610         default:
 611                 return -1;
 612         }
 613         if (ssid->frequency == 0)
 614                 ssid->frequency = 2462; /* default channel 11 */
 615         params.freq.freq = ssid->frequency;
 616
 617         params.wpa_proto = ssid->proto;
 618         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 619                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 620         else
 621                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 622         params.key_mgmt_suite = wpa_s->key_mgmt;
 623
 624         wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher,
 625                                                           1);
 626         if (wpa_s->pairwise_cipher < 0) {
 627                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 628                            "cipher.");
 629                 return -1;
 630         }
 631         params.pairwise_suite = wpa_s->pairwise_cipher;
 632         params.group_suite = params.pairwise_suite;
 633
 634 #ifdef CONFIG_P2P
 635         if (ssid->mode == WPAS_MODE_P2P_GO ||
 636             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 637                 params.p2p = 1;
 638 #endif /* CONFIG_P2P */
 639
 640         if (wpa_s->parent->set_ap_uapsd)
 641                 params.uapsd = wpa_s->parent->ap_uapsd;
 642         else if (params.p2p && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
 643                 params.uapsd = 1; /* mandatory for P2P GO */
 644         else
 645                 params.uapsd = -1;
 646
 647         if (ieee80211_is_dfs(params.freq.freq))
 648                 params.freq.freq = 0; /* set channel after CAC */
 649
 650         if (wpa_drv_associate(wpa_s, &params) < 0) {
 651                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 652                 return -1;
 653         }
 654
 655         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 656         if (hapd_iface == NULL)
 657                 return -1;
 658         hapd_iface->owner = wpa_s;
 659         hapd_iface->drv_flags = wpa_s->drv_flags;
 660         hapd_iface->smps_modes = wpa_s->drv_smps_modes;
 661         hapd_iface->probe_resp_offloads = wpa_s->probe_resp_offloads;
 662         hapd_iface->extended_capa = wpa_s->extended_capa;
 663         hapd_iface->extended_capa_mask = wpa_s->extended_capa_mask;
 664         hapd_iface->extended_capa_len = wpa_s->extended_capa_len;
 665
 666         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 667         if (conf == NULL) {
 668                 wpa_supplicant_ap_deinit(wpa_s);
 669                 return -1;
 670         }
 671
 672         /* Use the maximum oper channel width if it's given. */
 673         if (ssid->max_oper_chwidth)
 674                 conf->vht_oper_chwidth = ssid->max_oper_chwidth;
 675
 676         ieee80211_freq_to_chan(ssid->vht_center_freq2,
 677                                &conf->vht_oper_centr_freq_seg1_idx);
 678
 679         os_memcpy(wpa_s->ap_iface->conf->wmm_ac_params,
 680                   wpa_s->conf->wmm_ac_params,
 681                   sizeof(wpa_s->conf->wmm_ac_params));
 682
 683         if (params.uapsd > 0) {
 684                 conf->bss[0]->wmm_enabled = 1;
 685                 conf->bss[0]->wmm_uapsd = 1;
 686         }
 687
 688         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 689                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 690                 wpa_supplicant_ap_deinit(wpa_s);
 691                 return -1;
 692         }
 693
 694 #ifdef CONFIG_P2P
 695         if (ssid->mode == WPAS_MODE_P2P_GO)
 696                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 697         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 698                 conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 699                         P2P_GROUP_FORMATION;
 700 #endif /* CONFIG_P2P */
 701
 702         hapd_iface->num_bss = conf->num_bss;
 703         hapd_iface->bss = os_calloc(conf->num_bss,
 704                                     sizeof(struct hostapd_data *));
 705         if (hapd_iface->bss == NULL) {
 706                 wpa_supplicant_ap_deinit(wpa_s);
 707                 return -1;
 708         }
 709
 710         for (i = 0; i < conf->num_bss; i++) {
 711                 hapd_iface->bss[i] =
 712                         hostapd_alloc_bss_data(hapd_iface, conf,
 713                                                conf->bss[i]);
 714                 if (hapd_iface->bss[i] == NULL) {
 715                         wpa_supplicant_ap_deinit(wpa_s);
 716                         return -1;
 717                 }
 718
 719                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 720                 hapd_iface->bss[i]->msg_ctx_parent = wpa_s->parent;
 721                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 722                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 723                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 724                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 725                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 726                                              ap_probe_req_rx, wpa_s);
 727                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 728                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 729                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 730                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 731                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 732                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 733 #ifdef CONFIG_P2P
 734                 hapd_iface->bss[i]->new_psk_cb = ap_new_psk_cb;
 735                 hapd_iface->bss[i]->new_psk_cb_ctx = wpa_s;
 736                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 737                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(wpa_s,
 738                                                                     ssid);
 739 #endif /* CONFIG_P2P */
 740                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 741                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 742 #ifdef CONFIG_TESTING_OPTIONS
 743                 hapd_iface->bss[i]->ext_eapol_frame_io =
 744                         wpa_s->ext_eapol_frame_io;
 745 #endif /* CONFIG_TESTING_OPTIONS */
 746         }
 747
 748         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 749         hapd_iface->bss[0]->driver = wpa_s->driver;
 750         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 751
 752         wpa_s->current_ssid = ssid;
 753         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 754         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 755         wpa_s->assoc_freq = ssid->frequency;
 756
 757         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 758                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 759                 wpa_supplicant_ap_deinit(wpa_s);
 760                 return -1;
 761         }
 762
 763         return 0;
 764 }
 765
 766
 767 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 768 {
 769 #ifdef CONFIG_WPS
 770         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 771 #endif /* CONFIG_WPS */
 772
 773         if (wpa_s->ap_iface == NULL)
 774                 return;
 775
 776         wpa_s->current_ssid = NULL;
 777         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 778         wpa_s->assoc_freq = 0;
 779         wpas_p2p_ap_deinit(wpa_s);
 780         wpa_s->ap_iface->driver_ap_teardown =
 781                 !!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
 782
 783         hostapd_interface_deinit(wpa_s->ap_iface);
 784         hostapd_interface_free(wpa_s->ap_iface);
 785         wpa_s->ap_iface = NULL;
 786         wpa_drv_deinit_ap(wpa_s);
 787         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
 788                 " reason=%d locally_generated=1",
 789                 MAC2STR(wpa_s->own_addr), WLAN_REASON_DEAUTH_LEAVING);
 790 }
 791
 792
 793 void ap_tx_status(void *ctx, const u8 *addr,
 794                   const u8 *buf, size_t len, int ack)
 795 {
 796 #ifdef NEED_AP_MLME
 797         struct wpa_supplicant *wpa_s = ctx;
 798         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 799 #endif /* NEED_AP_MLME */
 800 }
 801
 802
 803 void ap_eapol_tx_status(void *ctx, const u8 *dst,
 804                         const u8 *data, size_t len, int ack)
 805 {
 806 #ifdef NEED_AP_MLME
 807         struct wpa_supplicant *wpa_s = ctx;
 808         if (!wpa_s->ap_iface)
 809                 return;
 810         hostapd_tx_status(wpa_s->ap_iface->bss[0], dst, data, len, ack);
 811 #endif /* NEED_AP_MLME */
 812 }
 813
 814
 815 void ap_client_poll_ok(void *ctx, const u8 *addr)
 816 {
 817 #ifdef NEED_AP_MLME
 818         struct wpa_supplicant *wpa_s = ctx;
 819         if (wpa_s->ap_iface)
 820                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 821 #endif /* NEED_AP_MLME */
 822 }
 823
 824
 825 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 826 {
 827 #ifdef NEED_AP_MLME
 828         struct wpa_supplicant *wpa_s = ctx;
 829         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 830 #endif /* NEED_AP_MLME */
 831 }
 832
 833
 834 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 835 {
 836 #ifdef NEED_AP_MLME
 837         struct wpa_supplicant *wpa_s = ctx;
 838         struct hostapd_frame_info fi;
 839         os_memset(&fi, 0, sizeof(fi));
 840         fi.datarate = rx_mgmt->datarate;
 841         fi.ssi_signal = rx_mgmt->ssi_signal;
 842         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 843                         rx_mgmt->frame_len, &fi);
 844 #endif /* NEED_AP_MLME */
 845 }
 846
 847
 848 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 849 {
 850 #ifdef NEED_AP_MLME
 851         struct wpa_supplicant *wpa_s = ctx;
 852         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 853 #endif /* NEED_AP_MLME */
 854 }
 855
 856
 857 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 858                                 const u8 *src_addr, const u8 *buf, size_t len)
 859 {
 860         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 861 }
 862
 863
 864 #ifdef CONFIG_WPS
 865
 866 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 867                               const u8 *p2p_dev_addr)
 868 {
 869         if (!wpa_s->ap_iface)
 870                 return -1;
 871         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 872                                          p2p_dev_addr);
 873 }
 874
 875
 876 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 877 {
 878         struct wps_registrar *reg;
 879         int reg_sel = 0, wps_sta = 0;
 880
 881         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 882                 return -1;
 883
 884         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 885         reg_sel = wps_registrar_wps_cancel(reg);
 886         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 887                                   ap_sta_wps_cancel, NULL);
 888
 889         if (!reg_sel && !wps_sta) {
 890                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 891                            "time");
 892                 return -1;
 893         }
 894
 895         /*
 896          * There are 2 cases to return wps cancel as success:
 897          * 1. When wps cancel was initiated but no connection has been
 898          *    established with client yet.
 899          * 2. Client is in the middle of exchanging WPS messages.
 900          */
 901
 902         return 0;
 903 }
 904
 905
 906 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 907                               const char *pin, char *buf, size_t buflen,
 908                               int timeout)
 909 {
 910         int ret, ret_len = 0;
 911
 912         if (!wpa_s->ap_iface)
 913                 return -1;
 914
 915         if (pin == NULL) {
 916                 unsigned int rpin = wps_generate_pin();
 917                 ret_len = os_snprintf(buf, buflen, "%08d", rpin);
 918                 if (os_snprintf_error(buflen, ret_len))
 919                         return -1;
 920                 pin = buf;
 921         } else if (buf) {
 922                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 923                 if (os_snprintf_error(buflen, ret_len))
 924                         return -1;
 925         }
 926
 927         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 928                                   timeout);
 929         if (ret)
 930                 return -1;
 931         return ret_len;
 932 }
 933
 934
 935 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 936 {
 937         struct wpa_supplicant *wpa_s = eloop_data;
 938         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 939         wpas_wps_ap_pin_disable(wpa_s);
 940 }
 941
 942
 943 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 944 {
 945         struct hostapd_data *hapd;
 946
 947         if (wpa_s->ap_iface == NULL)
 948                 return;
 949         hapd = wpa_s->ap_iface->bss[0];
 950         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 951         hapd->ap_pin_failures = 0;
 952         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 953         if (timeout > 0)
 954                 eloop_register_timeout(timeout, 0,
 955                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 956 }
 957
 958
 959 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 960 {
 961         struct hostapd_data *hapd;
 962
 963         if (wpa_s->ap_iface == NULL)
 964                 return;
 965         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 966         hapd = wpa_s->ap_iface->bss[0];
 967         os_free(hapd->conf->ap_pin);
 968         hapd->conf->ap_pin = NULL;
 969         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 970 }
 971
 972
 973 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 974 {
 975         struct hostapd_data *hapd;
 976         unsigned int pin;
 977         char pin_txt[9];
 978
 979         if (wpa_s->ap_iface == NULL)
 980                 return NULL;
 981         hapd = wpa_s->ap_iface->bss[0];
 982         pin = wps_generate_pin();
 983         os_snprintf(pin_txt, sizeof(pin_txt), "%08u", pin);
 984         os_free(hapd->conf->ap_pin);
 985         hapd->conf->ap_pin = os_strdup(pin_txt);
 986         if (hapd->conf->ap_pin == NULL)
 987                 return NULL;
 988         wpas_wps_ap_pin_enable(wpa_s, timeout);
 989
 990         return hapd->conf->ap_pin;
 991 }
 992
 993
 994 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 995 {
 996         struct hostapd_data *hapd;
 997         if (wpa_s->ap_iface == NULL)
 998                 return NULL;
 999         hapd = wpa_s->ap_iface->bss[0];
1000         return hapd->conf->ap_pin;
1001 }
1002
1003
1004 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
1005                         int timeout)
1006 {
1007         struct hostapd_data *hapd;
1008         char pin_txt[9];
1009         int ret;
1010
1011         if (wpa_s->ap_iface == NULL)
1012                 return -1;
1013         hapd = wpa_s->ap_iface->bss[0];
1014         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
1015         if (os_snprintf_error(sizeof(pin_txt), ret))
1016                 return -1;
1017         os_free(hapd->conf->ap_pin);
1018         hapd->conf->ap_pin = os_strdup(pin_txt);
1019         if (hapd->conf->ap_pin == NULL)
1020                 return -1;
1021         wpas_wps_ap_pin_enable(wpa_s, timeout);
1022
1023         return 0;
1024 }
1025
1026
1027 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
1028 {
1029         struct hostapd_data *hapd;
1030
1031         if (wpa_s->ap_iface == NULL)
1032                 return;
1033         hapd = wpa_s->ap_iface->bss[0];
1034
1035         /*
1036          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
1037          * PIN if this happens multiple times to slow down brute force attacks.
1038          */
1039         hapd->ap_pin_failures++;
1040         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
1041                    hapd->ap_pin_failures);
1042         if (hapd->ap_pin_failures < 3)
1043                 return;
1044
1045         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
1046         hapd->ap_pin_failures = 0;
1047         os_free(hapd->conf->ap_pin);
1048         hapd->conf->ap_pin = NULL;
1049 }
1050
1051
1052 #ifdef CONFIG_WPS_NFC
1053
1054 struct wpabuf * wpas_ap_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
1055                                              int ndef)
1056 {
1057         struct hostapd_data *hapd;
1058
1059         if (wpa_s->ap_iface == NULL)
1060                 return NULL;
1061         hapd = wpa_s->ap_iface->bss[0];
1062         return hostapd_wps_nfc_config_token(hapd, ndef);
1063 }
1064
1065
1066 struct wpabuf * wpas_ap_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
1067                                              int ndef)
1068 {
1069         struct hostapd_data *hapd;
1070
1071         if (wpa_s->ap_iface == NULL)
1072                 return NULL;
1073         hapd = wpa_s->ap_iface->bss[0];
1074         return hostapd_wps_nfc_hs_cr(hapd, ndef);
1075 }
1076
1077
1078 int wpas_ap_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
1079                                     const struct wpabuf *req,
1080                                     const struct wpabuf *sel)
1081 {
1082         struct hostapd_data *hapd;
1083
1084         if (wpa_s->ap_iface == NULL)
1085                 return -1;
1086         hapd = wpa_s->ap_iface->bss[0];
1087         return hostapd_wps_nfc_report_handover(hapd, req, sel);
1088 }
1089
1090 #endif /* CONFIG_WPS_NFC */
1091
1092 #endif /* CONFIG_WPS */
1093
1094
1095 #ifdef CONFIG_CTRL_IFACE
1096
1097 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
1098                             char *buf, size_t buflen)
1099 {
1100         struct hostapd_data *hapd;
1101
1102         if (wpa_s->ap_iface)
1103                 hapd = wpa_s->ap_iface->bss[0];
1104         else if (wpa_s->ifmsh)
1105                 hapd = wpa_s->ifmsh->bss[0];
1106         else
1107                 return -1;
1108         return hostapd_ctrl_iface_sta_first(hapd, buf, buflen);
1109 }
1110
1111
1112 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
1113                       char *buf, size_t buflen)
1114 {
1115         struct hostapd_data *hapd;
1116
1117         if (wpa_s->ap_iface)
1118                 hapd = wpa_s->ap_iface->bss[0];
1119         else if (wpa_s->ifmsh)
1120                 hapd = wpa_s->ifmsh->bss[0];
1121         else
1122                 return -1;
1123         return hostapd_ctrl_iface_sta(hapd, txtaddr, buf, buflen);
1124 }
1125
1126
1127 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
1128                            char *buf, size_t buflen)
1129 {
1130         struct hostapd_data *hapd;
1131
1132         if (wpa_s->ap_iface)
1133                 hapd = wpa_s->ap_iface->bss[0];
1134         else if (wpa_s->ifmsh)
1135                 hapd = wpa_s->ifmsh->bss[0];
1136         else
1137                 return -1;
1138         return hostapd_ctrl_iface_sta_next(hapd, txtaddr, buf, buflen);
1139 }
1140
1141
1142 int ap_ctrl_iface_sta_disassociate(struct wpa_supplicant *wpa_s,
1143                                    const char *txtaddr)
1144 {
1145         if (wpa_s->ap_iface == NULL)
1146                 return -1;
1147         return hostapd_ctrl_iface_disassociate(wpa_s->ap_iface->bss[0],
1148                                                txtaddr);
1149 }
1150
1151
1152 int ap_ctrl_iface_sta_deauthenticate(struct wpa_supplicant *wpa_s,
1153                                      const char *txtaddr)
1154 {
1155         if (wpa_s->ap_iface == NULL)
1156                 return -1;
1157         return hostapd_ctrl_iface_deauthenticate(wpa_s->ap_iface->bss[0],
1158                                                  txtaddr);
1159 }
1160
1161
1162 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
1163                                  size_t buflen, int verbose)
1164 {
1165         char *pos = buf, *end = buf + buflen;
1166         int ret;
1167         struct hostapd_bss_config *conf;
1168
1169         if (wpa_s->ap_iface == NULL)
1170                 return -1;
1171
1172         conf = wpa_s->ap_iface->bss[0]->conf;
1173         if (conf->wpa == 0)
1174                 return 0;
1175
1176         ret = os_snprintf(pos, end - pos,
1177                           "pairwise_cipher=%s\n"
1178                           "group_cipher=%s\n"
1179                           "key_mgmt=%s\n",
1180                           wpa_cipher_txt(conf->rsn_pairwise),
1181                           wpa_cipher_txt(conf->wpa_group),
1182                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
1183                                            conf->wpa));
1184         if (os_snprintf_error(end - pos, ret))
1185                 return pos - buf;
1186         pos += ret;
1187         return pos - buf;
1188 }
1189
1190 #endif /* CONFIG_CTRL_IFACE */
1191
1192
1193 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
1194 {
1195         struct hostapd_iface *iface = wpa_s->ap_iface;
1196         struct wpa_ssid *ssid = wpa_s->current_ssid;
1197         struct hostapd_data *hapd;
1198
1199         if (ssid == NULL || wpa_s->ap_iface == NULL ||
1200             ssid->mode == WPAS_MODE_INFRA ||
1201             ssid->mode == WPAS_MODE_IBSS)
1202                 return -1;
1203
1204 #ifdef CONFIG_P2P
1205         if (ssid->mode == WPAS_MODE_P2P_GO)
1206                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER;
1207         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1208                 iface->conf->bss[0]->p2p = P2P_ENABLED | P2P_GROUP_OWNER |
1209                         P2P_GROUP_FORMATION;
1210 #endif /* CONFIG_P2P */
1211
1212         hapd = iface->bss[0];
1213         if (hapd->drv_priv == NULL)
1214                 return -1;
1215         ieee802_11_set_beacons(iface);
1216         hostapd_set_ap_wps_ie(hapd);
1217
1218         return 0;
1219 }
1220
1221
1222 int ap_switch_channel(struct wpa_supplicant *wpa_s,
1223                       struct csa_settings *settings)
1224 {
1225 #ifdef NEED_AP_MLME
1226         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1227                 return -1;
1228
1229         return hostapd_switch_channel(wpa_s->ap_iface->bss[0], settings);
1230 #else /* NEED_AP_MLME */
1231         return -1;
1232 #endif /* NEED_AP_MLME */
1233 }
1234
1235
1236 #ifdef CONFIG_CTRL_IFACE
1237 int ap_ctrl_iface_chanswitch(struct wpa_supplicant *wpa_s, const char *pos)
1238 {
1239         struct csa_settings settings;
1240         int ret = hostapd_parse_csa_settings(pos, &settings);
1241
1242         if (ret)
1243                 return ret;
1244
1245         return ap_switch_channel(wpa_s, &settings);
1246 }
1247 #endif /* CONFIG_CTRL_IFACE */
1248
1249
1250 void wpas_ap_ch_switch(struct wpa_supplicant *wpa_s, int freq, int ht,
1251                        int offset, int width, int cf1, int cf2)
1252 {
1253         if (!wpa_s->ap_iface)
1254                 return;
1255
1256         wpa_s->assoc_freq = freq;
1257         if (wpa_s->current_ssid)
1258                 wpa_s->current_ssid->frequency = freq;
1259         hostapd_event_ch_switch(wpa_s->ap_iface->bss[0], freq, ht,
1260                                 offset, width, cf1, cf2);
1261 }
1262
1263
1264 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
1265                                       const u8 *addr)
1266 {
1267         struct hostapd_data *hapd;
1268         struct hostapd_bss_config *conf;
1269
1270         if (!wpa_s->ap_iface)
1271                 return -1;
1272
1273         if (addr)
1274                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
1275                            MAC2STR(addr));
1276         else
1277                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
1278
1279         hapd = wpa_s->ap_iface->bss[0];
1280         conf = hapd->conf;
1281
1282         os_free(conf->accept_mac);
1283         conf->accept_mac = NULL;
1284         conf->num_accept_mac = 0;
1285         os_free(conf->deny_mac);
1286         conf->deny_mac = NULL;
1287         conf->num_deny_mac = 0;
1288
1289         if (addr == NULL) {
1290                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
1291                 return 0;
1292         }
1293
1294         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
1295         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
1296         if (conf->accept_mac == NULL)
1297                 return -1;
1298         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
1299         conf->num_accept_mac = 1;
1300
1301         return 0;
1302 }
1303
1304
1305 #ifdef CONFIG_WPS_NFC
1306 int wpas_ap_wps_add_nfc_pw(struct wpa_supplicant *wpa_s, u16 pw_id,
1307                            const struct wpabuf *pw, const u8 *pubkey_hash)
1308 {
1309         struct hostapd_data *hapd;
1310         struct wps_context *wps;
1311
1312         if (!wpa_s->ap_iface)
1313                 return -1;
1314         hapd = wpa_s->ap_iface->bss[0];
1315         wps = hapd->wps;
1316
1317         if (wpa_s->parent->conf->wps_nfc_dh_pubkey == NULL ||
1318             wpa_s->parent->conf->wps_nfc_dh_privkey == NULL) {
1319                 wpa_printf(MSG_DEBUG, "P2P: No NFC DH key known");
1320                 return -1;
1321         }
1322
1323         dh5_free(wps->dh_ctx);
1324         wpabuf_free(wps->dh_pubkey);
1325         wpabuf_free(wps->dh_privkey);
1326         wps->dh_privkey = wpabuf_dup(
1327                 wpa_s->parent->conf->wps_nfc_dh_privkey);
1328         wps->dh_pubkey = wpabuf_dup(
1329                 wpa_s->parent->conf->wps_nfc_dh_pubkey);
1330         if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
1331                 wps->dh_ctx = NULL;
1332                 wpabuf_free(wps->dh_pubkey);
1333                 wps->dh_pubkey = NULL;
1334                 wpabuf_free(wps->dh_privkey);
1335                 wps->dh_privkey = NULL;
1336                 return -1;
1337         }
1338         wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
1339         if (wps->dh_ctx == NULL)
1340                 return -1;
1341
1342         return wps_registrar_add_nfc_pw_token(hapd->wps->registrar, pubkey_hash,
1343                                               pw_id,
1344                                               pw ? wpabuf_head(pw) : NULL,
1345                                               pw ? wpabuf_len(pw) : 0, 1);
1346 }
1347 #endif /* CONFIG_WPS_NFC */
1348
1349
1350 #ifdef CONFIG_CTRL_IFACE
1351 int wpas_ap_stop_ap(struct wpa_supplicant *wpa_s)
1352 {
1353         struct hostapd_data *hapd;
1354
1355         if (!wpa_s->ap_iface)
1356                 return -1;
1357         hapd = wpa_s->ap_iface->bss[0];
1358         return hostapd_ctrl_iface_stop_ap(hapd);
1359 }
1360 #endif /* CONFIG_CTRL_IFACE */
1361
1362
1363 #ifdef NEED_AP_MLME
1364 void wpas_event_dfs_radar_detected(struct wpa_supplicant *wpa_s,
1365                                    struct dfs_event *radar)
1366 {
1367         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1368                 return;
1369         wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1370         hostapd_dfs_radar_detected(wpa_s->ap_iface, radar->freq,
1371                                    radar->ht_enabled, radar->chan_offset,
1372                                    radar->chan_width,
1373                                    radar->cf1, radar->cf2);
1374 }
1375
1376
1377 void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
1378                                 struct dfs_event *radar)
1379 {
1380         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1381                 return;
1382         wpa_printf(MSG_DEBUG, "DFS CAC started on %d MHz", radar->freq);
1383         hostapd_dfs_start_cac(wpa_s->ap_iface, radar->freq,
1384                               radar->ht_enabled, radar->chan_offset,
1385                               radar->chan_width, radar->cf1, radar->cf2);
1386 }
1387
1388
1389 void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
1390                                  struct dfs_event *radar)
1391 {
1392         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1393                 return;
1394         wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1395         hostapd_dfs_complete_cac(wpa_s->ap_iface, 1, radar->freq,
1396                                  radar->ht_enabled, radar->chan_offset,
1397                                  radar->chan_width, radar->cf1, radar->cf2);
1398 }
1399
1400
1401 void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
1402                                 struct dfs_event *radar)
1403 {
1404         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1405                 return;
1406         wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1407         hostapd_dfs_complete_cac(wpa_s->ap_iface, 0, radar->freq,
1408                                  radar->ht_enabled, radar->chan_offset,
1409                                  radar->chan_width, radar->cf1, radar->cf2);
1410 }
1411
1412
1413 void wpas_event_dfs_cac_nop_finished(struct wpa_supplicant *wpa_s,
1414                                      struct dfs_event *radar)
1415 {
1416         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0])
1417                 return;
1418         wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1419         hostapd_dfs_nop_finished(wpa_s->ap_iface, radar->freq,
1420                                  radar->ht_enabled, radar->chan_offset,
1421                                  radar->chan_width, radar->cf1, radar->cf2);
1422 }
1423 #endif /* NEED_AP_MLME */
1424
1425
1426 void ap_periodic(struct wpa_supplicant *wpa_s)
1427 {
1428         if (wpa_s->ap_iface)
1429                 hostapd_periodic_iface(wpa_s->ap_iface);
1430 }