src/ap/beacon.c

   1 /*
   2  * hostapd / IEEE 802.11 Management: Beacon and Probe Request/Response
   3  * Copyright (c) 2002-2004, Instant802 Networks, Inc.
   4  * Copyright (c) 2005-2006, Devicescape Software, Inc.
   5  * Copyright (c) 2008-2009, Jouni Malinen <j@w1.fi>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * Alternatively, this software may be distributed under the terms of BSD
  12  * license.
  13  *
  14  * See README and COPYING for more details.
  15  */
  16
  17 #include "utils/includes.h"
  18
  19 #ifndef CONFIG_NATIVE_WINDOWS
  20
  21 #include "utils/common.h"
  22 #include "common/ieee802_11_defs.h"
  23 #include "common/ieee802_11_common.h"
  24 #include "drivers/driver.h"
  25 #include "wps/wps_defs.h"
  26 #include "p2p/p2p.h"
  27 #include "hostapd.h"
  28 #include "ieee802_11.h"
  29 #include "wpa_auth.h"
  30 #include "wmm.h"
  31 #include "ap_config.h"
  32 #include "sta_info.h"
  33 #include "p2p_hostapd.h"
  34 #include "ap_drv_ops.h"
  35 #include "beacon.h"
  36
  37
  38 #ifdef NEED_AP_MLME
  39
  40 static u8 ieee802_11_erp_info(struct hostapd_data *hapd)
  41 {
  42         u8 erp = 0;
  43
  44         if (hapd->iface->current_mode == NULL ||
  45             hapd->iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G)
  46                 return 0;
  47
  48         if (hapd->iface->olbc)
  49                 erp |= ERP_INFO_USE_PROTECTION;
  50         if (hapd->iface->num_sta_non_erp > 0) {
  51                 erp |= ERP_INFO_NON_ERP_PRESENT |
  52                         ERP_INFO_USE_PROTECTION;
  53         }
  54         if (hapd->iface->num_sta_no_short_preamble > 0 ||
  55             hapd->iconf->preamble == LONG_PREAMBLE)
  56                 erp |= ERP_INFO_BARKER_PREAMBLE_MODE;
  57
  58         return erp;
  59 }
  60
  61
  62 static u8 * hostapd_eid_ds_params(struct hostapd_data *hapd, u8 *eid)
  63 {
  64         *eid++ = WLAN_EID_DS_PARAMS;
  65         *eid++ = 1;
  66         *eid++ = hapd->iconf->channel;
  67         return eid;
  68 }
  69
  70
  71 static u8 * hostapd_eid_erp_info(struct hostapd_data *hapd, u8 *eid)
  72 {
  73         if (hapd->iface->current_mode == NULL ||
  74             hapd->iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G)
  75                 return eid;
  76
  77         /* Set NonERP_present and use_protection bits if there
  78          * are any associated NonERP stations. */
  79         /* TODO: use_protection bit can be set to zero even if
  80          * there are NonERP stations present. This optimization
  81          * might be useful if NonERP stations are "quiet".
  82          * See 802.11g/D6 E-1 for recommended practice.
  83          * In addition, Non ERP present might be set, if AP detects Non ERP
  84          * operation on other APs. */
  85
  86         /* Add ERP Information element */
  87         *eid++ = WLAN_EID_ERP_INFO;
  88         *eid++ = 1;
  89         *eid++ = ieee802_11_erp_info(hapd);
  90
  91         return eid;
  92 }
  93
  94
  95 static u8 * hostapd_eid_country_add(u8 *pos, u8 *end, int chan_spacing,
  96                                     struct hostapd_channel_data *start,
  97                                     struct hostapd_channel_data *prev)
  98 {
  99         if (end - pos < 3)
 100                 return pos;
 101
 102         /* first channel number */
 103         *pos++ = start->chan;
 104         /* number of channels */
 105         *pos++ = (prev->chan - start->chan) / chan_spacing + 1;
 106         /* maximum transmit power level */
 107         *pos++ = start->max_tx_power;
 108
 109         return pos;
 110 }
 111
 112
 113 static u8 * hostapd_eid_country(struct hostapd_data *hapd, u8 *eid,
 114                                 int max_len)
 115 {
 116         u8 *pos = eid;
 117         u8 *end = eid + max_len;
 118         int i;
 119         struct hostapd_hw_modes *mode;
 120         struct hostapd_channel_data *start, *prev;
 121         int chan_spacing = 1;
 122
 123         if (!hapd->iconf->ieee80211d || max_len < 6 ||
 124             hapd->iface->current_mode == NULL)
 125                 return eid;
 126
 127         *pos++ = WLAN_EID_COUNTRY;
 128         pos++; /* length will be set later */
 129         os_memcpy(pos, hapd->iconf->country, 3); /* e.g., 'US ' */
 130         pos += 3;
 131
 132         mode = hapd->iface->current_mode;
 133         if (mode->mode == HOSTAPD_MODE_IEEE80211A)
 134                 chan_spacing = 4;
 135
 136         start = prev = NULL;
 137         for (i = 0; i < mode->num_channels; i++) {
 138                 struct hostapd_channel_data *chan = &mode->channels[i];
 139                 if (chan->flag & HOSTAPD_CHAN_DISABLED)
 140                         continue;
 141                 if (start && prev &&
 142                     prev->chan + chan_spacing == chan->chan &&
 143                     start->max_tx_power == chan->max_tx_power) {
 144                         prev = chan;
 145                         continue; /* can use same entry */
 146                 }
 147
 148                 if (start) {
 149                         pos = hostapd_eid_country_add(pos, end, chan_spacing,
 150                                                       start, prev);
 151                         start = NULL;
 152                 }
 153
 154                 /* Start new group */
 155                 start = prev = chan;
 156         }
 157
 158         if (start) {
 159                 pos = hostapd_eid_country_add(pos, end, chan_spacing,
 160                                               start, prev);
 161         }
 162
 163         if ((pos - eid) & 1) {
 164                 if (end - pos < 1)
 165                         return eid;
 166                 *pos++ = 0; /* pad for 16-bit alignment */
 167         }
 168
 169         eid[1] = (pos - eid) - 2;
 170
 171         return pos;
 172 }
 173
 174
 175 static u8 * hostapd_eid_wpa(struct hostapd_data *hapd, u8 *eid, size_t len)
 176 {
 177         const u8 *ie;
 178         size_t ielen;
 179
 180         ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &ielen);
 181         if (ie == NULL || ielen > len)
 182                 return eid;
 183
 184         os_memcpy(eid, ie, ielen);
 185         return eid + ielen;
 186 }
 187
 188
 189 void handle_probe_req(struct hostapd_data *hapd,
 190                       const struct ieee80211_mgmt *mgmt, size_t len)
 191 {
 192         struct ieee80211_mgmt *resp;
 193         struct ieee802_11_elems elems;
 194         char *ssid;
 195         u8 *pos, *epos;
 196         const u8 *ie;
 197         size_t ssid_len, ie_len;
 198         struct sta_info *sta = NULL;
 199         size_t buflen;
 200         size_t i;
 201         int noack;
 202
 203         ie = mgmt->u.probe_req.variable;
 204         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 205                 return;
 206         ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 207
 208         for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++)
 209                 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
 210                                             mgmt->sa, mgmt->da, mgmt->bssid,
 211                                             ie, ie_len) > 0)
 212                         return;
 213
 214         if (!hapd->iconf->send_probe_response)
 215                 return;
 216
 217         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
 218                 wpa_printf(MSG_DEBUG, "Could not parse ProbeReq from " MACSTR,
 219                            MAC2STR(mgmt->sa));
 220                 return;
 221         }
 222
 223         ssid = NULL;
 224         ssid_len = 0;
 225
 226         if ((!elems.ssid || !elems.supp_rates)) {
 227                 wpa_printf(MSG_DEBUG, "STA " MACSTR " sent probe request "
 228                            "without SSID or supported rates element",
 229                            MAC2STR(mgmt->sa));
 230                 return;
 231         }
 232
 233 #ifdef CONFIG_P2P
 234         if (hapd->p2p && elems.wps_ie) {
 235                 struct wpabuf *wps;
 236                 wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
 237                 if (wps && !p2p_group_match_dev_type(hapd->p2p_group, wps)) {
 238                         wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
 239                                    "due to mismatch with Requested Device "
 240                                    "Type");
 241                         wpabuf_free(wps);
 242                         return;
 243                 }
 244                 wpabuf_free(wps);
 245         }
 246 #endif /* CONFIG_P2P */
 247
 248         if (hapd->conf->ignore_broadcast_ssid && elems.ssid_len == 0) {
 249                 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR " for "
 250                            "broadcast SSID ignored", MAC2STR(mgmt->sa));
 251                 return;
 252         }
 253
 254         sta = ap_get_sta(hapd, mgmt->sa);
 255
 256 #ifdef CONFIG_P2P
 257         if ((hapd->conf->p2p & P2P_GROUP_OWNER) &&
 258             elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
 259             os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
 260                       P2P_WILDCARD_SSID_LEN) == 0) {
 261                 /* Process P2P Wildcard SSID like Wildcard SSID */
 262                 elems.ssid_len = 0;
 263         }
 264 #endif /* CONFIG_P2P */
 265
 266         if (elems.ssid_len == 0 ||
 267             (elems.ssid_len == hapd->conf->ssid.ssid_len &&
 268              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) ==
 269              0)) {
 270                 ssid = hapd->conf->ssid.ssid;
 271                 ssid_len = hapd->conf->ssid.ssid_len;
 272                 if (sta)
 273                         sta->ssid_probe = &hapd->conf->ssid;
 274         }
 275
 276         if (!ssid) {
 277                 if (!(mgmt->da[0] & 0x01)) {
 278                         char ssid_txt[33];
 279                         ieee802_11_print_ssid(ssid_txt, elems.ssid,
 280                                               elems.ssid_len);
 281                         wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
 282                                    " for foreign SSID '%s' (DA " MACSTR ")",
 283                                    MAC2STR(mgmt->sa), ssid_txt,
 284                                    MAC2STR(mgmt->da));
 285                 }
 286                 return;
 287         }
 288
 289 #ifdef CONFIG_INTERWORKING
 290         if (elems.interworking && elems.interworking_len >= 1) {
 291                 u8 ant = elems.interworking[0] & 0x0f;
 292                 if (ant != INTERWORKING_ANT_WILDCARD &&
 293                     ant != hapd->conf->access_network_type) {
 294                         wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
 295                                    " for mismatching ANT %u ignored",
 296                                    MAC2STR(mgmt->sa), ant);
 297                         return;
 298                 }
 299         }
 300
 301         if (elems.interworking &&
 302             (elems.interworking_len == 7 || elems.interworking_len == 9)) {
 303                 const u8 *hessid;
 304                 if (elems.interworking_len == 7)
 305                         hessid = elems.interworking + 1;
 306                 else
 307                         hessid = elems.interworking + 1 + 2;
 308                 if (!is_broadcast_ether_addr(hessid) &&
 309                     os_memcmp(hessid, hapd->conf->hessid, ETH_ALEN) != 0) {
 310                         wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
 311                                    " for mismatching HESSID " MACSTR
 312                                    " ignored",
 313                                    MAC2STR(mgmt->sa), MAC2STR(hessid));
 314                         return;
 315                 }
 316         }
 317 #endif /* CONFIG_INTERWORKING */
 318
 319         /* TODO: verify that supp_rates contains at least one matching rate
 320          * with AP configuration */
 321 #define MAX_PROBERESP_LEN 768
 322         buflen = MAX_PROBERESP_LEN;
 323 #ifdef CONFIG_WPS
 324         if (hapd->wps_probe_resp_ie)
 325                 buflen += wpabuf_len(hapd->wps_probe_resp_ie);
 326 #endif /* CONFIG_WPS */
 327 #ifdef CONFIG_P2P
 328         if (hapd->p2p_probe_resp_ie)
 329                 buflen += wpabuf_len(hapd->p2p_probe_resp_ie);
 330 #endif /* CONFIG_P2P */
 331         resp = os_zalloc(buflen);
 332         if (resp == NULL)
 333                 return;
 334         epos = ((u8 *) resp) + MAX_PROBERESP_LEN;
 335
 336         resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 337                                            WLAN_FC_STYPE_PROBE_RESP);
 338         os_memcpy(resp->da, mgmt->sa, ETH_ALEN);
 339         os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
 340
 341         os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
 342         resp->u.probe_resp.beacon_int =
 343                 host_to_le16(hapd->iconf->beacon_int);
 344
 345         /* hardware or low-level driver will setup seq_ctrl and timestamp */
 346         resp->u.probe_resp.capab_info =
 347                 host_to_le16(hostapd_own_capab_info(hapd, sta, 1));
 348
 349         pos = resp->u.probe_resp.variable;
 350         *pos++ = WLAN_EID_SSID;
 351         *pos++ = ssid_len;
 352         os_memcpy(pos, ssid, ssid_len);
 353         pos += ssid_len;
 354
 355         /* Supported rates */
 356         pos = hostapd_eid_supp_rates(hapd, pos);
 357
 358         /* DS Params */
 359         pos = hostapd_eid_ds_params(hapd, pos);
 360
 361         pos = hostapd_eid_country(hapd, pos, epos - pos);
 362
 363         /* ERP Information element */
 364         pos = hostapd_eid_erp_info(hapd, pos);
 365
 366         /* Extended supported rates */
 367         pos = hostapd_eid_ext_supp_rates(hapd, pos);
 368
 369         /* RSN, MDIE, WPA */
 370         pos = hostapd_eid_wpa(hapd, pos, epos - pos);
 371
 372 #ifdef CONFIG_IEEE80211N
 373         pos = hostapd_eid_ht_capabilities(hapd, pos);
 374         pos = hostapd_eid_ht_operation(hapd, pos);
 375 #endif /* CONFIG_IEEE80211N */
 376
 377         pos = hostapd_eid_ext_capab(hapd, pos);
 378
 379         pos = hostapd_eid_time_adv(hapd, pos);
 380         pos = hostapd_eid_time_zone(hapd, pos);
 381
 382         pos = hostapd_eid_interworking(hapd, pos);
 383         pos = hostapd_eid_adv_proto(hapd, pos);
 384         pos = hostapd_eid_roaming_consortium(hapd, pos);
 385
 386         /* Wi-Fi Alliance WMM */
 387         pos = hostapd_eid_wmm(hapd, pos);
 388
 389 #ifdef CONFIG_WPS
 390         if (hapd->conf->wps_state && hapd->wps_probe_resp_ie) {
 391                 os_memcpy(pos, wpabuf_head(hapd->wps_probe_resp_ie),
 392                           wpabuf_len(hapd->wps_probe_resp_ie));
 393                 pos += wpabuf_len(hapd->wps_probe_resp_ie);
 394         }
 395 #endif /* CONFIG_WPS */
 396
 397 #ifdef CONFIG_P2P
 398         if ((hapd->conf->p2p & P2P_ENABLED) && elems.p2p &&
 399             hapd->p2p_probe_resp_ie) {
 400                 os_memcpy(pos, wpabuf_head(hapd->p2p_probe_resp_ie),
 401                           wpabuf_len(hapd->p2p_probe_resp_ie));
 402                 pos += wpabuf_len(hapd->p2p_probe_resp_ie);
 403         }
 404 #endif /* CONFIG_P2P */
 405 #ifdef CONFIG_P2P_MANAGER
 406         if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
 407             P2P_MANAGE)
 408                 pos = hostapd_eid_p2p_manage(hapd, pos);
 409 #endif /* CONFIG_P2P_MANAGER */
 410
 411         /*
 412          * If this is a broadcast probe request, apply no ack policy to avoid
 413          * excessive retries.
 414          */
 415         noack = !!(elems.ssid_len == 0 && is_broadcast_ether_addr(mgmt->da));
 416
 417         if (hostapd_drv_send_mlme(hapd, resp, pos - (u8 *) resp, noack) < 0)
 418                 perror("handle_probe_req: send");
 419
 420         os_free(resp);
 421
 422         wpa_printf(MSG_EXCESSIVE, "STA " MACSTR " sent probe request for %s "
 423                    "SSID", MAC2STR(mgmt->sa),
 424                    elems.ssid_len == 0 ? "broadcast" : "our");
 425 }
 426
 427 #endif /* NEED_AP_MLME */
 428
 429
 430 void ieee802_11_set_beacon(struct hostapd_data *hapd)
 431 {
 432         struct ieee80211_mgmt *head = NULL;
 433         u8 *tail = NULL;
 434         size_t head_len = 0, tail_len = 0;
 435         struct wpa_driver_ap_params params;
 436         struct wpabuf *beacon, *proberesp, *assocresp;
 437 #ifdef NEED_AP_MLME
 438         u16 capab_info;
 439         u8 *pos, *tailpos;
 440 #endif /* NEED_AP_MLME */
 441
 442         hapd->beacon_set_done = 1;
 443
 444 #ifdef NEED_AP_MLME
 445
 446 #define BEACON_HEAD_BUF_SIZE 256
 447 #define BEACON_TAIL_BUF_SIZE 512
 448         head = os_zalloc(BEACON_HEAD_BUF_SIZE);
 449         tail_len = BEACON_TAIL_BUF_SIZE;
 450 #ifdef CONFIG_WPS
 451         if (hapd->conf->wps_state && hapd->wps_beacon_ie)
 452                 tail_len += wpabuf_len(hapd->wps_beacon_ie);
 453 #endif /* CONFIG_WPS */
 454 #ifdef CONFIG_P2P
 455         if (hapd->p2p_beacon_ie)
 456                 tail_len += wpabuf_len(hapd->p2p_beacon_ie);
 457 #endif /* CONFIG_P2P */
 458         tailpos = tail = os_malloc(tail_len);
 459         if (head == NULL || tail == NULL) {
 460                 wpa_printf(MSG_ERROR, "Failed to set beacon data");
 461                 os_free(head);
 462                 os_free(tail);
 463                 return;
 464         }
 465
 466         head->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 467                                            WLAN_FC_STYPE_BEACON);
 468         head->duration = host_to_le16(0);
 469         os_memset(head->da, 0xff, ETH_ALEN);
 470
 471         os_memcpy(head->sa, hapd->own_addr, ETH_ALEN);
 472         os_memcpy(head->bssid, hapd->own_addr, ETH_ALEN);
 473         head->u.beacon.beacon_int =
 474                 host_to_le16(hapd->iconf->beacon_int);
 475
 476         /* hardware or low-level driver will setup seq_ctrl and timestamp */
 477         capab_info = hostapd_own_capab_info(hapd, NULL, 0);
 478         head->u.beacon.capab_info = host_to_le16(capab_info);
 479         pos = &head->u.beacon.variable[0];
 480
 481         /* SSID */
 482         *pos++ = WLAN_EID_SSID;
 483         if (hapd->conf->ignore_broadcast_ssid == 2) {
 484                 /* clear the data, but keep the correct length of the SSID */
 485                 *pos++ = hapd->conf->ssid.ssid_len;
 486                 os_memset(pos, 0, hapd->conf->ssid.ssid_len);
 487                 pos += hapd->conf->ssid.ssid_len;
 488         } else if (hapd->conf->ignore_broadcast_ssid) {
 489                 *pos++ = 0; /* empty SSID */
 490         } else {
 491                 *pos++ = hapd->conf->ssid.ssid_len;
 492                 os_memcpy(pos, hapd->conf->ssid.ssid,
 493                           hapd->conf->ssid.ssid_len);
 494                 pos += hapd->conf->ssid.ssid_len;
 495         }
 496
 497         /* Supported rates */
 498         pos = hostapd_eid_supp_rates(hapd, pos);
 499
 500         /* DS Params */
 501         pos = hostapd_eid_ds_params(hapd, pos);
 502
 503         head_len = pos - (u8 *) head;
 504
 505         tailpos = hostapd_eid_country(hapd, tailpos,
 506                                       tail + BEACON_TAIL_BUF_SIZE - tailpos);
 507
 508         /* ERP Information element */
 509         tailpos = hostapd_eid_erp_info(hapd, tailpos);
 510
 511         /* Extended supported rates */
 512         tailpos = hostapd_eid_ext_supp_rates(hapd, tailpos);
 513
 514         /* RSN, MDIE, WPA */
 515         tailpos = hostapd_eid_wpa(hapd, tailpos, tail + BEACON_TAIL_BUF_SIZE -
 516                                   tailpos);
 517
 518 #ifdef CONFIG_IEEE80211N
 519         tailpos = hostapd_eid_ht_capabilities(hapd, tailpos);
 520         tailpos = hostapd_eid_ht_operation(hapd, tailpos);
 521 #endif /* CONFIG_IEEE80211N */
 522
 523         tailpos = hostapd_eid_ext_capab(hapd, tailpos);
 524
 525         /*
 526          * TODO: Time Advertisement element should only be included in some
 527          * DTIM Beacon frames.
 528          */
 529         tailpos = hostapd_eid_time_adv(hapd, tailpos);
 530
 531         tailpos = hostapd_eid_interworking(hapd, tailpos);
 532         tailpos = hostapd_eid_adv_proto(hapd, tailpos);
 533         tailpos = hostapd_eid_roaming_consortium(hapd, tailpos);
 534
 535         /* Wi-Fi Alliance WMM */
 536         tailpos = hostapd_eid_wmm(hapd, tailpos);
 537
 538 #ifdef CONFIG_WPS
 539         if (hapd->conf->wps_state && hapd->wps_beacon_ie) {
 540                 os_memcpy(tailpos, wpabuf_head(hapd->wps_beacon_ie),
 541                           wpabuf_len(hapd->wps_beacon_ie));
 542                 tailpos += wpabuf_len(hapd->wps_beacon_ie);
 543         }
 544 #endif /* CONFIG_WPS */
 545
 546 #ifdef CONFIG_P2P
 547         if ((hapd->conf->p2p & P2P_ENABLED) && hapd->p2p_beacon_ie) {
 548                 os_memcpy(tailpos, wpabuf_head(hapd->p2p_beacon_ie),
 549                           wpabuf_len(hapd->p2p_beacon_ie));
 550                 tailpos += wpabuf_len(hapd->p2p_beacon_ie);
 551         }
 552 #endif /* CONFIG_P2P */
 553 #ifdef CONFIG_P2P_MANAGER
 554         if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
 555             P2P_MANAGE)
 556                 tailpos = hostapd_eid_p2p_manage(hapd, tailpos);
 557 #endif /* CONFIG_P2P_MANAGER */
 558
 559         tail_len = tailpos > tail ? tailpos - tail : 0;
 560
 561 #endif /* NEED_AP_MLME */
 562
 563         os_memset(&params, 0, sizeof(params));
 564         params.head = (u8 *) head;
 565         params.head_len = head_len;
 566         params.tail = tail;
 567         params.tail_len = tail_len;
 568         params.dtim_period = hapd->conf->dtim_period;
 569         params.beacon_int = hapd->iconf->beacon_int;
 570         params.basic_rates = hapd->iconf->basic_rates;
 571         params.ssid = (u8 *) hapd->conf->ssid.ssid;
 572         params.ssid_len = hapd->conf->ssid.ssid_len;
 573         params.pairwise_ciphers = hapd->conf->rsn_pairwise ?
 574                 hapd->conf->rsn_pairwise : hapd->conf->wpa_pairwise;
 575         params.group_cipher = hapd->conf->wpa_group;
 576         params.key_mgmt_suites = hapd->conf->wpa_key_mgmt;
 577         params.auth_algs = hapd->conf->auth_algs;
 578         params.wpa_version = hapd->conf->wpa;
 579         params.privacy = hapd->conf->ssid.wep.keys_set || hapd->conf->wpa ||
 580                 (hapd->conf->ieee802_1x &&
 581                  (hapd->conf->default_wep_key_len ||
 582                   hapd->conf->individual_wep_key_len));
 583         switch (hapd->conf->ignore_broadcast_ssid) {
 584         case 0:
 585                 params.hide_ssid = NO_SSID_HIDING;
 586                 break;
 587         case 1:
 588                 params.hide_ssid = HIDDEN_SSID_ZERO_LEN;
 589                 break;
 590         case 2:
 591                 params.hide_ssid = HIDDEN_SSID_ZERO_CONTENTS;
 592                 break;
 593         }
 594         hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp);
 595         params.beacon_ies = beacon;
 596         params.proberesp_ies = proberesp;
 597         params.assocresp_ies = assocresp;
 598         params.isolate = hapd->conf->isolate;
 599 #ifdef NEED_AP_MLME
 600         params.cts_protect = !!(ieee802_11_erp_info(hapd) &
 601                                 ERP_INFO_USE_PROTECTION);
 602         params.preamble = hapd->iface->num_sta_no_short_preamble == 0 &&
 603                 hapd->iconf->preamble == SHORT_PREAMBLE;
 604         if (hapd->iface->current_mode &&
 605             hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G)
 606                 params.short_slot_time =
 607                         hapd->iface->num_sta_no_short_slot_time > 0 ? 0 : 1;
 608         else
 609                 params.short_slot_time = -1;
 610         if (!hapd->iconf->ieee80211n || hapd->conf->disable_11n)
 611                 params.ht_opmode = -1;
 612         else
 613                 params.ht_opmode = hapd->iface->ht_op_mode;
 614 #endif /* NEED_AP_MLME */
 615         params.interworking = hapd->conf->interworking;
 616         if (hapd->conf->interworking &&
 617             !is_zero_ether_addr(hapd->conf->hessid))
 618                 params.hessid = hapd->conf->hessid;
 619         params.access_network_type = hapd->conf->access_network_type;
 620         if (hostapd_drv_set_ap(hapd, &params))
 621                 wpa_printf(MSG_ERROR, "Failed to set beacon parameters");
 622         hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
 623
 624         os_free(tail);
 625         os_free(head);
 626 }
 627
 628
 629 void ieee802_11_set_beacons(struct hostapd_iface *iface)
 630 {
 631         size_t i;
 632         for (i = 0; i < iface->num_bss; i++)
 633                 ieee802_11_set_beacon(iface->bss[i]);
 634 }
 635
 636 #endif /* CONFIG_NATIVE_WINDOWS */