wpa_supplicant/ap.c

   1 /*
   2  * WPA Supplicant - Basic AP mode support routines
   3  * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2009, Atheros Communications
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  */
  15
  16 #include "utils/includes.h"
  17
  18 #include "utils/common.h"
  19 #include "utils/eloop.h"
  20 #include "utils/uuid.h"
  21 #include "common/ieee802_11_defs.h"
  22 #include "common/wpa_ctrl.h"
  23 #include "ap/hostapd.h"
  24 #include "ap/ap_config.h"
  25 #include "ap/ap_drv_ops.h"
  26 #ifdef NEED_AP_MLME
  27 #include "ap/ieee802_11.h"
  28 #endif /* NEED_AP_MLME */
  29 #include "ap/beacon.h"
  30 #include "ap/ieee802_1x.h"
  31 #include "ap/wps_hostapd.h"
  32 #include "ap/ctrl_iface_ap.h"
  33 #include "eap_common/eap_defs.h"
  34 #include "eap_server/eap_methods.h"
  35 #include "eap_common/eap_wsc_common.h"
  36 #include "wps/wps.h"
  37 #include "common/ieee802_11_defs.h"
  38 #include "config_ssid.h"
  39 #include "config.h"
  40 #include "wpa_supplicant_i.h"
  41 #include "driver_i.h"
  42 #include "p2p_supplicant.h"
  43 #include "ap.h"
  44 #include "ap/sta_info.h"
  45 #include "notify.h"
  46
  47
  48 #ifdef CONFIG_WPS
  49 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  50 #endif /* CONFIG_WPS */
  51
  52
  53 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
  54                                   struct wpa_ssid *ssid,
  55                                   struct hostapd_config *conf)
  56 {
  57         struct hostapd_bss_config *bss = &conf->bss[0];
  58         int pairwise;
  59
  60         conf->driver = wpa_s->driver;
  61
  62         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
  63
  64         if (ssid->frequency == 0) {
  65                 /* default channel 11 */
  66                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  67                 conf->channel = 11;
  68         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
  69                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
  70                 conf->channel = (ssid->frequency - 2407) / 5;
  71         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
  72                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
  73                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
  74                 conf->channel = (ssid->frequency - 5000) / 5;
  75         } else {
  76                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
  77                            ssid->frequency);
  78                 return -1;
  79         }
  80
  81         /* TODO: enable HT40 if driver supports it;
  82          * drop to 11b if driver does not support 11g */
  83
  84 #ifdef CONFIG_IEEE80211N
  85         /*
  86          * Enable HT20 if the driver supports it, by setting conf->ieee80211n.
  87          * Using default config settings for: conf->ht_op_mode_fixed,
  88          * conf->ht_capab, conf->secondary_channel, conf->require_ht
  89          */
  90         if (wpa_s->hw.modes) {
  91                 struct hostapd_hw_modes *mode = NULL;
  92                 int i;
  93                 for (i = 0; i < wpa_s->hw.num_modes; i++) {
  94                         if (wpa_s->hw.modes[i].mode == conf->hw_mode) {
  95                                 mode = &wpa_s->hw.modes[i];
  96                                 break;
  97                         }
  98                 }
  99                 if (mode && mode->ht_capab)
 100                         conf->ieee80211n = 1;
 101         }
 102 #endif /* CONFIG_IEEE80211N */
 103
 104 #ifdef CONFIG_P2P
 105         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 106                 /* Remove 802.11b rates from supported and basic rate sets */
 107                 int *list = os_malloc(4 * sizeof(int));
 108                 if (list) {
 109                         list[0] = 60;
 110                         list[1] = 120;
 111                         list[2] = 240;
 112                         list[3] = -1;
 113                 }
 114                 conf->basic_rates = list;
 115
 116                 list = os_malloc(9 * sizeof(int));
 117                 if (list) {
 118                         list[0] = 60;
 119                         list[1] = 90;
 120                         list[2] = 120;
 121                         list[3] = 180;
 122                         list[4] = 240;
 123                         list[5] = 360;
 124                         list[6] = 480;
 125                         list[7] = 540;
 126                         list[8] = -1;
 127                 }
 128                 conf->supported_rates = list;
 129         }
 130
 131         bss->isolate = !wpa_s->conf->p2p_intra_bss;
 132 #endif /* CONFIG_P2P */
 133
 134         if (ssid->ssid_len == 0) {
 135                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 136                 return -1;
 137         }
 138         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 139         bss->ssid.ssid[ssid->ssid_len] = '\0';
 140         bss->ssid.ssid_len = ssid->ssid_len;
 141         bss->ssid.ssid_set = 1;
 142
 143         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 144                 bss->wpa = ssid->proto;
 145         bss->wpa_key_mgmt = ssid->key_mgmt;
 146         bss->wpa_pairwise = ssid->pairwise_cipher;
 147         if (ssid->passphrase) {
 148                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 149         } else if (ssid->psk_set) {
 150                 os_free(bss->ssid.wpa_psk);
 151                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 152                 if (bss->ssid.wpa_psk == NULL)
 153                         return -1;
 154                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 155                 bss->ssid.wpa_psk->group = 1;
 156         } else if (ssid->wep_key_len[0] || ssid->wep_key_len[1] ||
 157                    ssid->wep_key_len[2] || ssid->wep_key_len[3]) {
 158                 struct hostapd_wep_keys *wep = &bss->ssid.wep;
 159                 int i;
 160                 for (i = 0; i < NUM_WEP_KEYS; i++) {
 161                         if (ssid->wep_key_len[i] == 0)
 162                                 continue;
 163                         wep->key[i] = os_malloc(ssid->wep_key_len[i]);
 164                         if (wep->key[i] == NULL)
 165                                 return -1;
 166                         os_memcpy(wep->key[i], ssid->wep_key[i],
 167                                   ssid->wep_key_len[i]);
 168                         wep->len[i] = ssid->wep_key_len[i];
 169                 }
 170                 wep->idx = ssid->wep_tx_keyidx;
 171                 wep->keys_set = 1;
 172         }
 173
 174         /* Select group cipher based on the enabled pairwise cipher suites */
 175         pairwise = 0;
 176         if (bss->wpa & 1)
 177                 pairwise |= bss->wpa_pairwise;
 178         if (bss->wpa & 2) {
 179                 if (bss->rsn_pairwise == 0)
 180                         bss->rsn_pairwise = bss->wpa_pairwise;
 181                 pairwise |= bss->rsn_pairwise;
 182         }
 183         if (pairwise & WPA_CIPHER_TKIP)
 184                 bss->wpa_group = WPA_CIPHER_TKIP;
 185         else
 186                 bss->wpa_group = WPA_CIPHER_CCMP;
 187
 188         if (bss->wpa && bss->ieee802_1x)
 189                 bss->ssid.security_policy = SECURITY_WPA;
 190         else if (bss->wpa)
 191                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 192         else if (bss->ieee802_1x) {
 193                 int cipher = WPA_CIPHER_NONE;
 194                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 195                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 196                 if (bss->default_wep_key_len)
 197                         cipher = bss->default_wep_key_len >= 13 ?
 198                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
 199                 bss->wpa_group = cipher;
 200                 bss->wpa_pairwise = cipher;
 201                 bss->rsn_pairwise = cipher;
 202         } else if (bss->ssid.wep.keys_set) {
 203                 int cipher = WPA_CIPHER_WEP40;
 204                 if (bss->ssid.wep.len[0] >= 13)
 205                         cipher = WPA_CIPHER_WEP104;
 206                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 207                 bss->wpa_group = cipher;
 208                 bss->wpa_pairwise = cipher;
 209                 bss->rsn_pairwise = cipher;
 210         } else {
 211                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 212                 bss->wpa_group = WPA_CIPHER_NONE;
 213                 bss->wpa_pairwise = WPA_CIPHER_NONE;
 214                 bss->rsn_pairwise = WPA_CIPHER_NONE;
 215         }
 216
 217 #ifdef CONFIG_WPS
 218         /*
 219          * Enable WPS by default, but require user interaction to actually use
 220          * it. Only the internal Registrar is supported.
 221          */
 222         bss->eap_server = 1;
 223         bss->wps_state = 2;
 224         bss->ap_setup_locked = 2;
 225         if (wpa_s->conf->config_methods)
 226                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 227         os_memcpy(bss->device_type, wpa_s->conf->device_type,
 228                   WPS_DEV_TYPE_LEN);
 229         if (wpa_s->conf->device_name) {
 230                 bss->device_name = os_strdup(wpa_s->conf->device_name);
 231                 bss->friendly_name = os_strdup(wpa_s->conf->device_name);
 232         }
 233         if (wpa_s->conf->manufacturer)
 234                 bss->manufacturer = os_strdup(wpa_s->conf->manufacturer);
 235         if (wpa_s->conf->model_name)
 236                 bss->model_name = os_strdup(wpa_s->conf->model_name);
 237         if (wpa_s->conf->model_number)
 238                 bss->model_number = os_strdup(wpa_s->conf->model_number);
 239         if (wpa_s->conf->serial_number)
 240                 bss->serial_number = os_strdup(wpa_s->conf->serial_number);
 241         if (is_nil_uuid(wpa_s->conf->uuid))
 242                 os_memcpy(bss->uuid, wpa_s->wps->uuid, WPS_UUID_LEN);
 243         else
 244                 os_memcpy(bss->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 245         os_memcpy(bss->os_version, wpa_s->conf->os_version, 4);
 246 #endif /* CONFIG_WPS */
 247
 248         if (wpa_s->max_stations &&
 249             wpa_s->max_stations < wpa_s->conf->max_num_sta)
 250                 bss->max_num_sta = wpa_s->max_stations;
 251         else
 252                 bss->max_num_sta = wpa_s->conf->max_num_sta;
 253
 254         bss->disassoc_low_ack = wpa_s->conf->disassoc_low_ack;
 255
 256         return 0;
 257 }
 258
 259
 260 static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 261 {
 262 #ifdef CONFIG_P2P
 263         struct wpa_supplicant *wpa_s = ctx;
 264         const struct ieee80211_mgmt *mgmt;
 265         size_t hdr_len;
 266
 267         mgmt = (const struct ieee80211_mgmt *) buf;
 268         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 269         if (hdr_len > len)
 270                 return;
 271         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 272                            mgmt->u.action.category,
 273                            &mgmt->u.action.u.vs_public_action.action,
 274                            len - hdr_len, freq);
 275 #endif /* CONFIG_P2P */
 276 }
 277
 278
 279 static void ap_wps_event_cb(void *ctx, enum wps_event event,
 280                             union wps_event_data *data)
 281 {
 282 #ifdef CONFIG_P2P
 283         struct wpa_supplicant *wpa_s = ctx;
 284
 285         if (event == WPS_EV_FAIL) {
 286                 struct wps_event_fail *fail = &data->fail;
 287
 288                 if (wpa_s->parent && wpa_s->parent != wpa_s &&
 289                     wpa_s == wpa_s->global->p2p_group_formation) {
 290                         /*
 291                          * src/ap/wps_hostapd.c has already sent this on the
 292                          * main interface, so only send on the parent interface
 293                          * here if needed.
 294                          */
 295                         wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
 296                                 "msg=%d config_error=%d",
 297                                 fail->msg, fail->config_error);
 298                 }
 299                 wpas_p2p_wps_failed(wpa_s, fail);
 300         }
 301 #endif /* CONFIG_P2P */
 302 }
 303
 304
 305 static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
 306                                  int authorized)
 307 {
 308         wpas_notify_sta_authorized(ctx, mac_addr, authorized);
 309 }
 310
 311
 312 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 313 {
 314 #ifdef CONFIG_P2P
 315         struct wpa_supplicant *wpa_s = ctx;
 316         const struct ieee80211_mgmt *mgmt;
 317         size_t hdr_len;
 318
 319         mgmt = (const struct ieee80211_mgmt *) buf;
 320         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 321         if (hdr_len > len)
 322                 return -1;
 323         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
 324                            mgmt->u.action.category,
 325                            &mgmt->u.action.u.vs_public_action.action,
 326                            len - hdr_len, freq);
 327 #endif /* CONFIG_P2P */
 328         return 0;
 329 }
 330
 331
 332 static int ap_probe_req_rx(void *ctx, const u8 *sa, const u8 *da,
 333                            const u8 *bssid, const u8 *ie, size_t ie_len)
 334 {
 335 #ifdef CONFIG_P2P
 336         struct wpa_supplicant *wpa_s = ctx;
 337         return wpas_p2p_probe_req_rx(wpa_s, sa, da, bssid, ie, ie_len);
 338 #else /* CONFIG_P2P */
 339         return 0;
 340 #endif /* CONFIG_P2P */
 341 }
 342
 343
 344 static void ap_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 345                                   const u8 *uuid_e)
 346 {
 347 #ifdef CONFIG_P2P
 348         struct wpa_supplicant *wpa_s = ctx;
 349         wpas_p2p_wps_success(wpa_s, mac_addr, 1);
 350 #endif /* CONFIG_P2P */
 351 }
 352
 353
 354 static void wpas_ap_configured_cb(void *ctx)
 355 {
 356         struct wpa_supplicant *wpa_s = ctx;
 357
 358         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 359
 360         if (wpa_s->ap_configured_cb)
 361                 wpa_s->ap_configured_cb(wpa_s->ap_configured_cb_ctx,
 362                                         wpa_s->ap_configured_cb_data);
 363 }
 364
 365
 366 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 367                              struct wpa_ssid *ssid)
 368 {
 369         struct wpa_driver_associate_params params;
 370         struct hostapd_iface *hapd_iface;
 371         struct hostapd_config *conf;
 372         size_t i;
 373
 374         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 375                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 376                 return -1;
 377         }
 378
 379         wpa_supplicant_ap_deinit(wpa_s);
 380
 381         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 382                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 383
 384         os_memset(&params, 0, sizeof(params));
 385         params.ssid = ssid->ssid;
 386         params.ssid_len = ssid->ssid_len;
 387         switch (ssid->mode) {
 388         case WPAS_MODE_INFRA:
 389                 params.mode = IEEE80211_MODE_INFRA;
 390                 break;
 391         case WPAS_MODE_IBSS:
 392                 params.mode = IEEE80211_MODE_IBSS;
 393                 break;
 394         case WPAS_MODE_AP:
 395         case WPAS_MODE_P2P_GO:
 396         case WPAS_MODE_P2P_GROUP_FORMATION:
 397                 params.mode = IEEE80211_MODE_AP;
 398                 break;
 399         }
 400         params.freq = ssid->frequency;
 401
 402         params.wpa_proto = ssid->proto;
 403         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK)
 404                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 405         else
 406                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 407         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
 408
 409         if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
 410                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 411         else if (ssid->pairwise_cipher & WPA_CIPHER_TKIP)
 412                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 413         else if (ssid->pairwise_cipher & WPA_CIPHER_NONE)
 414                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 415         else {
 416                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 417                            "cipher.");
 418                 return -1;
 419         }
 420         params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
 421         params.group_suite = params.pairwise_suite;
 422
 423 #ifdef CONFIG_P2P
 424         if (ssid->mode == WPAS_MODE_P2P_GO ||
 425             ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 426                 params.p2p = 1;
 427 #endif /* CONFIG_P2P */
 428
 429         if (wpa_s->parent->set_ap_uapsd)
 430                 params.uapsd = wpa_s->parent->ap_uapsd;
 431         else
 432                 params.uapsd = -1;
 433
 434         if (wpa_drv_associate(wpa_s, &params) < 0) {
 435                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 436                 return -1;
 437         }
 438
 439         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 440         if (hapd_iface == NULL)
 441                 return -1;
 442         hapd_iface->owner = wpa_s;
 443         hapd_iface->drv_flags = wpa_s->drv_flags;
 444
 445         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 446         if (conf == NULL) {
 447                 wpa_supplicant_ap_deinit(wpa_s);
 448                 return -1;
 449         }
 450
 451         if (params.uapsd > 0) {
 452                 conf->bss->wmm_enabled = 1;
 453                 conf->bss->wmm_uapsd = 1;
 454         }
 455
 456         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 457                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 458                 wpa_supplicant_ap_deinit(wpa_s);
 459                 return -1;
 460         }
 461
 462 #ifdef CONFIG_P2P
 463         if (ssid->mode == WPAS_MODE_P2P_GO)
 464                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 465         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 466                 conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 467                         P2P_GROUP_FORMATION;
 468 #endif /* CONFIG_P2P */
 469
 470         hapd_iface->num_bss = conf->num_bss;
 471         hapd_iface->bss = os_zalloc(conf->num_bss *
 472                                     sizeof(struct hostapd_data *));
 473         if (hapd_iface->bss == NULL) {
 474                 wpa_supplicant_ap_deinit(wpa_s);
 475                 return -1;
 476         }
 477
 478         for (i = 0; i < conf->num_bss; i++) {
 479                 hapd_iface->bss[i] =
 480                         hostapd_alloc_bss_data(hapd_iface, conf,
 481                                                &conf->bss[i]);
 482                 if (hapd_iface->bss[i] == NULL) {
 483                         wpa_supplicant_ap_deinit(wpa_s);
 484                         return -1;
 485                 }
 486
 487                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 488                 hapd_iface->bss[i]->public_action_cb = ap_public_action_rx;
 489                 hapd_iface->bss[i]->public_action_cb_ctx = wpa_s;
 490                 hapd_iface->bss[i]->vendor_action_cb = ap_vendor_action_rx;
 491                 hapd_iface->bss[i]->vendor_action_cb_ctx = wpa_s;
 492                 hostapd_register_probereq_cb(hapd_iface->bss[i],
 493                                              ap_probe_req_rx, wpa_s);
 494                 hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 495                 hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
 496                 hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
 497                 hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 498                 hapd_iface->bss[i]->sta_authorized_cb = ap_sta_authorized_cb;
 499                 hapd_iface->bss[i]->sta_authorized_cb_ctx = wpa_s;
 500 #ifdef CONFIG_P2P
 501                 hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 502                 hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(
 503                         wpa_s, ssid->p2p_persistent_group,
 504                         ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION);
 505 #endif /* CONFIG_P2P */
 506                 hapd_iface->bss[i]->setup_complete_cb = wpas_ap_configured_cb;
 507                 hapd_iface->bss[i]->setup_complete_cb_ctx = wpa_s;
 508         }
 509
 510         os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
 511         hapd_iface->bss[0]->driver = wpa_s->driver;
 512         hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
 513
 514         wpa_s->current_ssid = ssid;
 515         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 516         wpa_s->assoc_freq = ssid->frequency;
 517
 518         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 519                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 520                 wpa_supplicant_ap_deinit(wpa_s);
 521                 return -1;
 522         }
 523
 524         return 0;
 525 }
 526
 527
 528 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 529 {
 530 #ifdef CONFIG_WPS
 531         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 532 #endif /* CONFIG_WPS */
 533
 534         if (wpa_s->ap_iface == NULL)
 535                 return;
 536
 537         wpa_s->current_ssid = NULL;
 538         wpa_s->assoc_freq = 0;
 539         wpa_s->reassociated_connection = 0;
 540 #ifdef CONFIG_P2P
 541         if (wpa_s->ap_iface->bss)
 542                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
 543         wpas_p2p_group_deinit(wpa_s);
 544 #endif /* CONFIG_P2P */
 545         hostapd_interface_deinit(wpa_s->ap_iface);
 546         hostapd_interface_free(wpa_s->ap_iface);
 547         wpa_s->ap_iface = NULL;
 548         wpa_drv_deinit_ap(wpa_s);
 549 }
 550
 551
 552 void ap_tx_status(void *ctx, const u8 *addr,
 553                   const u8 *buf, size_t len, int ack)
 554 {
 555 #ifdef NEED_AP_MLME
 556         struct wpa_supplicant *wpa_s = ctx;
 557         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 558 #endif /* NEED_AP_MLME */
 559 }
 560
 561
 562 void ap_client_poll_ok(void *ctx, const u8 *addr)
 563 {
 564 #ifdef NEED_AP_MLME
 565         struct wpa_supplicant *wpa_s = ctx;
 566         if (wpa_s->ap_iface)
 567                 hostapd_client_poll_ok(wpa_s->ap_iface->bss[0], addr);
 568 #endif /* NEED_AP_MLME */
 569 }
 570
 571
 572 void ap_rx_from_unknown_sta(void *ctx, const u8 *addr, int wds)
 573 {
 574 #ifdef NEED_AP_MLME
 575         struct wpa_supplicant *wpa_s = ctx;
 576         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], addr, wds);
 577 #endif /* NEED_AP_MLME */
 578 }
 579
 580
 581 void ap_mgmt_rx(void *ctx, struct rx_mgmt *rx_mgmt)
 582 {
 583 #ifdef NEED_AP_MLME
 584         struct wpa_supplicant *wpa_s = ctx;
 585         struct hostapd_frame_info fi;
 586         os_memset(&fi, 0, sizeof(fi));
 587         fi.datarate = rx_mgmt->datarate;
 588         fi.ssi_signal = rx_mgmt->ssi_signal;
 589         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], rx_mgmt->frame,
 590                         rx_mgmt->frame_len, &fi);
 591 #endif /* NEED_AP_MLME */
 592 }
 593
 594
 595 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 596 {
 597 #ifdef NEED_AP_MLME
 598         struct wpa_supplicant *wpa_s = ctx;
 599         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 600 #endif /* NEED_AP_MLME */
 601 }
 602
 603
 604 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 605                                 const u8 *src_addr, const u8 *buf, size_t len)
 606 {
 607         ieee802_1x_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 608 }
 609
 610
 611 #ifdef CONFIG_WPS
 612
 613 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
 614                               const u8 *p2p_dev_addr)
 615 {
 616         if (!wpa_s->ap_iface)
 617                 return -1;
 618         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0],
 619                                          p2p_dev_addr);
 620 }
 621
 622
 623 static int wpa_supplicant_ap_wps_sta_cancel(struct hostapd_data *hapd,
 624                                             struct sta_info *sta, void *ctx)
 625 {
 626         if (sta && (sta->flags & WLAN_STA_WPS)) {
 627                 ap_sta_deauthenticate(hapd, sta,
 628                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 629                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 630                            __func__, MAC2STR(sta->addr));
 631                 return 1;
 632         }
 633
 634         return 0;
 635 }
 636
 637
 638 int wpa_supplicant_ap_wps_cancel(struct wpa_supplicant *wpa_s)
 639 {
 640         struct wps_registrar *reg;
 641         int reg_sel = 0, wps_sta = 0;
 642
 643         if (!wpa_s->ap_iface || !wpa_s->ap_iface->bss[0]->wps)
 644                 return -1;
 645
 646         reg = wpa_s->ap_iface->bss[0]->wps->registrar;
 647         reg_sel = wps_registrar_wps_cancel(reg);
 648         wps_sta = ap_for_each_sta(wpa_s->ap_iface->bss[0],
 649                                   wpa_supplicant_ap_wps_sta_cancel, NULL);
 650
 651         if (!reg_sel && !wps_sta) {
 652                 wpa_printf(MSG_DEBUG, "No WPS operation in progress at this "
 653                            "time");
 654                 return -1;
 655         }
 656
 657         /*
 658          * There are 2 cases to return wps cancel as success:
 659          * 1. When wps cancel was initiated but no connection has been
 660          *    established with client yet.
 661          * 2. Client is in the middle of exchanging WPS messages.
 662          */
 663
 664         return 0;
 665 }
 666
 667
 668 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 669                               const char *pin, char *buf, size_t buflen)
 670 {
 671         int ret, ret_len = 0;
 672
 673         if (!wpa_s->ap_iface)
 674                 return -1;
 675
 676         if (pin == NULL) {
 677                 unsigned int rpin = wps_generate_pin();
 678                 ret_len = os_snprintf(buf, buflen, "%d", rpin);
 679                 pin = buf;
 680         } else
 681                 ret_len = os_snprintf(buf, buflen, "%s", pin);
 682
 683         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], bssid, "any", pin,
 684                                   0);
 685         if (ret)
 686                 return -1;
 687         return ret_len;
 688 }
 689
 690
 691 static void wpas_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
 692 {
 693         struct wpa_supplicant *wpa_s = eloop_data;
 694         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
 695         wpas_wps_ap_pin_disable(wpa_s);
 696 }
 697
 698
 699 static void wpas_wps_ap_pin_enable(struct wpa_supplicant *wpa_s, int timeout)
 700 {
 701         struct hostapd_data *hapd;
 702
 703         if (wpa_s->ap_iface == NULL)
 704                 return;
 705         hapd = wpa_s->ap_iface->bss[0];
 706         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
 707         hapd->ap_pin_failures = 0;
 708         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 709         if (timeout > 0)
 710                 eloop_register_timeout(timeout, 0,
 711                                        wpas_wps_ap_pin_timeout, wpa_s, NULL);
 712 }
 713
 714
 715 void wpas_wps_ap_pin_disable(struct wpa_supplicant *wpa_s)
 716 {
 717         struct hostapd_data *hapd;
 718
 719         if (wpa_s->ap_iface == NULL)
 720                 return;
 721         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
 722         hapd = wpa_s->ap_iface->bss[0];
 723         os_free(hapd->conf->ap_pin);
 724         hapd->conf->ap_pin = NULL;
 725         eloop_cancel_timeout(wpas_wps_ap_pin_timeout, wpa_s, NULL);
 726 }
 727
 728
 729 const char * wpas_wps_ap_pin_random(struct wpa_supplicant *wpa_s, int timeout)
 730 {
 731         struct hostapd_data *hapd;
 732         unsigned int pin;
 733         char pin_txt[9];
 734
 735         if (wpa_s->ap_iface == NULL)
 736                 return NULL;
 737         hapd = wpa_s->ap_iface->bss[0];
 738         pin = wps_generate_pin();
 739         os_snprintf(pin_txt, sizeof(pin_txt), "%u", pin);
 740         os_free(hapd->conf->ap_pin);
 741         hapd->conf->ap_pin = os_strdup(pin_txt);
 742         if (hapd->conf->ap_pin == NULL)
 743                 return NULL;
 744         wpas_wps_ap_pin_enable(wpa_s, timeout);
 745
 746         return hapd->conf->ap_pin;
 747 }
 748
 749
 750 const char * wpas_wps_ap_pin_get(struct wpa_supplicant *wpa_s)
 751 {
 752         struct hostapd_data *hapd;
 753         if (wpa_s->ap_iface == NULL)
 754                 return NULL;
 755         hapd = wpa_s->ap_iface->bss[0];
 756         return hapd->conf->ap_pin;
 757 }
 758
 759
 760 int wpas_wps_ap_pin_set(struct wpa_supplicant *wpa_s, const char *pin,
 761                         int timeout)
 762 {
 763         struct hostapd_data *hapd;
 764         char pin_txt[9];
 765         int ret;
 766
 767         if (wpa_s->ap_iface == NULL)
 768                 return -1;
 769         hapd = wpa_s->ap_iface->bss[0];
 770         ret = os_snprintf(pin_txt, sizeof(pin_txt), "%s", pin);
 771         if (ret < 0 || ret >= (int) sizeof(pin_txt))
 772                 return -1;
 773         os_free(hapd->conf->ap_pin);
 774         hapd->conf->ap_pin = os_strdup(pin_txt);
 775         if (hapd->conf->ap_pin == NULL)
 776                 return -1;
 777         wpas_wps_ap_pin_enable(wpa_s, timeout);
 778
 779         return 0;
 780 }
 781
 782
 783 void wpa_supplicant_ap_pwd_auth_fail(struct wpa_supplicant *wpa_s)
 784 {
 785         struct hostapd_data *hapd;
 786
 787         if (wpa_s->ap_iface == NULL)
 788                 return;
 789         hapd = wpa_s->ap_iface->bss[0];
 790
 791         /*
 792          * Registrar failed to prove its knowledge of the AP PIN. Disable AP
 793          * PIN if this happens multiple times to slow down brute force attacks.
 794          */
 795         hapd->ap_pin_failures++;
 796         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 797                    hapd->ap_pin_failures);
 798         if (hapd->ap_pin_failures < 3)
 799                 return;
 800
 801         wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN");
 802         hapd->ap_pin_failures = 0;
 803         os_free(hapd->conf->ap_pin);
 804         hapd->conf->ap_pin = NULL;
 805 }
 806
 807 #endif /* CONFIG_WPS */
 808
 809
 810 #ifdef CONFIG_CTRL_IFACE
 811
 812 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 813                             char *buf, size_t buflen)
 814 {
 815         if (wpa_s->ap_iface == NULL)
 816                 return -1;
 817         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 818                                             buf, buflen);
 819 }
 820
 821
 822 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 823                       char *buf, size_t buflen)
 824 {
 825         if (wpa_s->ap_iface == NULL)
 826                 return -1;
 827         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 828                                       buf, buflen);
 829 }
 830
 831
 832 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 833                            char *buf, size_t buflen)
 834 {
 835         if (wpa_s->ap_iface == NULL)
 836                 return -1;
 837         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 838                                            buf, buflen);
 839 }
 840
 841
 842 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 843                                  size_t buflen, int verbose)
 844 {
 845         char *pos = buf, *end = buf + buflen;
 846         int ret;
 847         struct hostapd_bss_config *conf;
 848
 849         if (wpa_s->ap_iface == NULL)
 850                 return -1;
 851
 852         conf = wpa_s->ap_iface->bss[0]->conf;
 853         if (conf->wpa == 0)
 854                 return 0;
 855
 856         ret = os_snprintf(pos, end - pos,
 857                           "pairwise_cipher=%s\n"
 858                           "group_cipher=%s\n"
 859                           "key_mgmt=%s\n",
 860                           wpa_cipher_txt(conf->rsn_pairwise),
 861                           wpa_cipher_txt(conf->wpa_group),
 862                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 863                                            conf->wpa));
 864         if (ret < 0 || ret >= end - pos)
 865                 return pos - buf;
 866         pos += ret;
 867         return pos - buf;
 868 }
 869
 870 #endif /* CONFIG_CTRL_IFACE */
 871
 872
 873 int wpa_supplicant_ap_update_beacon(struct wpa_supplicant *wpa_s)
 874 {
 875         struct hostapd_iface *iface = wpa_s->ap_iface;
 876         struct wpa_ssid *ssid = wpa_s->current_ssid;
 877         struct hostapd_data *hapd;
 878
 879         if (ssid == NULL || wpa_s->ap_iface == NULL)
 880                 return -1;
 881
 882 #ifdef CONFIG_P2P
 883         if (ssid->mode == WPAS_MODE_P2P_GO)
 884                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER;
 885         else if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
 886                 iface->conf->bss[0].p2p = P2P_ENABLED | P2P_GROUP_OWNER |
 887                         P2P_GROUP_FORMATION;
 888 #endif /* CONFIG_P2P */
 889
 890         ieee802_11_set_beacons(iface);
 891         hapd = iface->bss[0];
 892         hostapd_set_ap_wps_ie(hapd);
 893
 894         return 0;
 895 }
 896
 897
 898 int wpa_supplicant_ap_mac_addr_filter(struct wpa_supplicant *wpa_s,
 899                                       const u8 *addr)
 900 {
 901         struct hostapd_data *hapd;
 902         struct hostapd_bss_config *conf;
 903
 904         if (!wpa_s->ap_iface)
 905                 return -1;
 906
 907         if (addr)
 908                 wpa_printf(MSG_DEBUG, "AP: Set MAC address filter: " MACSTR,
 909                            MAC2STR(addr));
 910         else
 911                 wpa_printf(MSG_DEBUG, "AP: Clear MAC address filter");
 912
 913         hapd = wpa_s->ap_iface->bss[0];
 914         conf = hapd->conf;
 915
 916         os_free(conf->accept_mac);
 917         conf->accept_mac = NULL;
 918         conf->num_accept_mac = 0;
 919         os_free(conf->deny_mac);
 920         conf->deny_mac = NULL;
 921         conf->num_deny_mac = 0;
 922
 923         if (addr == NULL) {
 924                 conf->macaddr_acl = ACCEPT_UNLESS_DENIED;
 925                 return 0;
 926         }
 927
 928         conf->macaddr_acl = DENY_UNLESS_ACCEPTED;
 929         conf->accept_mac = os_zalloc(sizeof(struct mac_acl_entry));
 930         if (conf->accept_mac == NULL)
 931                 return -1;
 932         os_memcpy(conf->accept_mac[0].addr, addr, ETH_ALEN);
 933         conf->num_accept_mac = 1;
 934
 935         return 0;
 936 }