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         switch (hapd->iconf->cts_protection_type) {
  49         case CTS_PROTECTION_FORCE_ENABLED:
  50                 erp |= ERP_INFO_NON_ERP_PRESENT | ERP_INFO_USE_PROTECTION;
  51                 break;
  52         case CTS_PROTECTION_FORCE_DISABLED:
  53                 erp = 0;
  54                 break;
  55         case CTS_PROTECTION_AUTOMATIC:
  56                 if (hapd->iface->olbc)
  57                         erp |= ERP_INFO_USE_PROTECTION;
  58                 /* continue */
  59         case CTS_PROTECTION_AUTOMATIC_NO_OLBC:
  60                 if (hapd->iface->num_sta_non_erp > 0) {
  61                         erp |= ERP_INFO_NON_ERP_PRESENT |
  62                                 ERP_INFO_USE_PROTECTION;
  63                 }
  64                 break;
  65         }
  66         if (hapd->iface->num_sta_no_short_preamble > 0 ||
  67             hapd->iconf->preamble == LONG_PREAMBLE)
  68                 erp |= ERP_INFO_BARKER_PREAMBLE_MODE;
  69
  70         return erp;
  71 }
  72
  73
  74 static u8 * hostapd_eid_ds_params(struct hostapd_data *hapd, u8 *eid)
  75 {
  76         *eid++ = WLAN_EID_DS_PARAMS;
  77         *eid++ = 1;
  78         *eid++ = hapd->iconf->channel;
  79         return eid;
  80 }
  81
  82
  83 static u8 * hostapd_eid_erp_info(struct hostapd_data *hapd, u8 *eid)
  84 {
  85         if (hapd->iface->current_mode == NULL ||
  86             hapd->iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G)
  87                 return eid;
  88
  89         /* Set NonERP_present and use_protection bits if there
  90          * are any associated NonERP stations. */
  91         /* TODO: use_protection bit can be set to zero even if
  92          * there are NonERP stations present. This optimization
  93          * might be useful if NonERP stations are "quiet".
  94          * See 802.11g/D6 E-1 for recommended practice.
  95          * In addition, Non ERP present might be set, if AP detects Non ERP
  96          * operation on other APs. */
  97
  98         /* Add ERP Information element */
  99         *eid++ = WLAN_EID_ERP_INFO;
 100         *eid++ = 1;
 101         *eid++ = ieee802_11_erp_info(hapd);
 102
 103         return eid;
 104 }
 105
 106
 107 static u8 * hostapd_eid_country_add(u8 *pos, u8 *end, int chan_spacing,
 108                                     struct hostapd_channel_data *start,
 109                                     struct hostapd_channel_data *prev)
 110 {
 111         if (end - pos < 3)
 112                 return pos;
 113
 114         /* first channel number */
 115         *pos++ = start->chan;
 116         /* number of channels */
 117         *pos++ = (prev->chan - start->chan) / chan_spacing + 1;
 118         /* maximum transmit power level */
 119         *pos++ = start->max_tx_power;
 120
 121         return pos;
 122 }
 123
 124
 125 static u8 * hostapd_eid_country(struct hostapd_data *hapd, u8 *eid,
 126                                 int max_len)
 127 {
 128         u8 *pos = eid;
 129         u8 *end = eid + max_len;
 130         int i;
 131         struct hostapd_hw_modes *mode;
 132         struct hostapd_channel_data *start, *prev;
 133         int chan_spacing = 1;
 134
 135         if (!hapd->iconf->ieee80211d || max_len < 6 ||
 136             hapd->iface->current_mode == NULL)
 137                 return eid;
 138
 139         *pos++ = WLAN_EID_COUNTRY;
 140         pos++; /* length will be set later */
 141         os_memcpy(pos, hapd->iconf->country, 3); /* e.g., 'US ' */
 142         pos += 3;
 143
 144         mode = hapd->iface->current_mode;
 145         if (mode->mode == HOSTAPD_MODE_IEEE80211A)
 146                 chan_spacing = 4;
 147
 148         start = prev = NULL;
 149         for (i = 0; i < mode->num_channels; i++) {
 150                 struct hostapd_channel_data *chan = &mode->channels[i];
 151                 if (chan->flag & HOSTAPD_CHAN_DISABLED)
 152                         continue;
 153                 if (start && prev &&
 154                     prev->chan + chan_spacing == chan->chan &&
 155                     start->max_tx_power == chan->max_tx_power) {
 156                         prev = chan;
 157                         continue; /* can use same entry */
 158                 }
 159
 160                 if (start) {
 161                         pos = hostapd_eid_country_add(pos, end, chan_spacing,
 162                                                       start, prev);
 163                         start = NULL;
 164                 }
 165
 166                 /* Start new group */
 167                 start = prev = chan;
 168         }
 169
 170         if (start) {
 171                 pos = hostapd_eid_country_add(pos, end, chan_spacing,
 172                                               start, prev);
 173         }
 174
 175         if ((pos - eid) & 1) {
 176                 if (end - pos < 1)
 177                         return eid;
 178                 *pos++ = 0; /* pad for 16-bit alignment */
 179         }
 180
 181         eid[1] = (pos - eid) - 2;
 182
 183         return pos;
 184 }
 185
 186
 187 static u8 * hostapd_eid_wpa(struct hostapd_data *hapd, u8 *eid, size_t len,
 188                             struct sta_info *sta)
 189 {
 190         const u8 *ie;
 191         size_t ielen;
 192
 193         ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &ielen);
 194         if (ie == NULL || ielen > len)
 195                 return eid;
 196
 197         os_memcpy(eid, ie, ielen);
 198         return eid + ielen;
 199 }
 200
 201
 202 static u8 * hostapd_eid_interworking(struct hostapd_data *hapd, u8 *eid)
 203 {
 204         u8 *pos = eid;
 205 #ifdef CONFIG_INTERWORKING
 206         u8 *len;
 207
 208         if (!hapd->conf->interworking)
 209                 return eid;
 210
 211         *pos++ = WLAN_EID_INTERWORKING;
 212         len = pos++;
 213
 214         *pos = hapd->conf->access_network_type;
 215         if (hapd->conf->internet)
 216                 *pos |= INTERWORKING_ANO_INTERNET;
 217         if (hapd->conf->asra)
 218                 *pos |= INTERWORKING_ANO_ASRA;
 219         if (hapd->conf->esr)
 220                 *pos |= INTERWORKING_ANO_ESR;
 221         if (hapd->conf->uesa)
 222                 *pos |= INTERWORKING_ANO_UESA;
 223         pos++;
 224
 225         if (hapd->conf->venue_info_set) {
 226                 *pos++ = hapd->conf->venue_group;
 227                 *pos++ = hapd->conf->venue_type;
 228         }
 229
 230         if (!is_zero_ether_addr(hapd->conf->hessid)) {
 231                 os_memcpy(pos, hapd->conf->hessid, ETH_ALEN);
 232                 pos += ETH_ALEN;
 233         }
 234
 235         *len = pos - len - 1;
 236 #endif /* CONFIG_INTERWORKING */
 237
 238         return pos;
 239 }
 240
 241
 242 void handle_probe_req(struct hostapd_data *hapd,
 243                       const struct ieee80211_mgmt *mgmt, size_t len)
 244 {
 245         struct ieee80211_mgmt *resp;
 246         struct ieee802_11_elems elems;
 247         char *ssid;
 248         u8 *pos, *epos;
 249         const u8 *ie;
 250         size_t ssid_len, ie_len;
 251         struct sta_info *sta = NULL;
 252         size_t buflen;
 253         size_t i;
 254
 255         ie = mgmt->u.probe_req.variable;
 256         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 257                 return;
 258         ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 259
 260         for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++)
 261                 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
 262                                             mgmt->sa, mgmt->da, mgmt->bssid,
 263                                             ie, ie_len) > 0)
 264                         return;
 265
 266         if (!hapd->iconf->send_probe_response)
 267                 return;
 268
 269         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
 270                 wpa_printf(MSG_DEBUG, "Could not parse ProbeReq from " MACSTR,
 271                            MAC2STR(mgmt->sa));
 272                 return;
 273         }
 274
 275         ssid = NULL;
 276         ssid_len = 0;
 277
 278         if ((!elems.ssid || !elems.supp_rates)) {
 279                 wpa_printf(MSG_DEBUG, "STA " MACSTR " sent probe request "
 280                            "without SSID or supported rates element",
 281                            MAC2STR(mgmt->sa));
 282                 return;
 283         }
 284
 285 #ifdef CONFIG_P2P
 286         if (hapd->p2p && elems.wps_ie) {
 287                 struct wpabuf *wps;
 288                 wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
 289                 if (wps && !p2p_group_match_dev_type(hapd->p2p_group, wps)) {
 290                         wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
 291                                    "due to mismatch with Requested Device "
 292                                    "Type");
 293                         wpabuf_free(wps);
 294                         return;
 295                 }
 296                 wpabuf_free(wps);
 297         }
 298 #endif /* CONFIG_P2P */
 299
 300         if (hapd->conf->ignore_broadcast_ssid && elems.ssid_len == 0) {
 301                 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR " for "
 302                            "broadcast SSID ignored", MAC2STR(mgmt->sa));
 303                 return;
 304         }
 305
 306         sta = ap_get_sta(hapd, mgmt->sa);
 307
 308 #ifdef CONFIG_P2P
 309         if ((hapd->conf->p2p & P2P_GROUP_OWNER) &&
 310             elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
 311             os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
 312                       P2P_WILDCARD_SSID_LEN) == 0) {
 313                 /* Process P2P Wildcard SSID like Wildcard SSID */
 314                 elems.ssid_len = 0;
 315         }
 316 #endif /* CONFIG_P2P */
 317
 318         if (elems.ssid_len == 0 ||
 319             (elems.ssid_len == hapd->conf->ssid.ssid_len &&
 320              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) ==
 321              0)) {
 322                 ssid = hapd->conf->ssid.ssid;
 323                 ssid_len = hapd->conf->ssid.ssid_len;
 324                 if (sta)
 325                         sta->ssid_probe = &hapd->conf->ssid;
 326         }
 327
 328         if (!ssid) {
 329                 if (!(mgmt->da[0] & 0x01)) {
 330                         char ssid_txt[33];
 331                         ieee802_11_print_ssid(ssid_txt, elems.ssid,
 332                                               elems.ssid_len);
 333                         wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
 334                                    " for foreign SSID '%s' (DA " MACSTR ")",
 335                                    MAC2STR(mgmt->sa), ssid_txt,
 336                                    MAC2STR(mgmt->da));
 337                 }
 338                 return;
 339         }
 340
 341         /* TODO: verify that supp_rates contains at least one matching rate
 342          * with AP configuration */
 343 #define MAX_PROBERESP_LEN 768
 344         buflen = MAX_PROBERESP_LEN;
 345 #ifdef CONFIG_WPS
 346         if (hapd->wps_probe_resp_ie)
 347                 buflen += wpabuf_len(hapd->wps_probe_resp_ie);
 348 #endif /* CONFIG_WPS */
 349 #ifdef CONFIG_P2P
 350         if (hapd->p2p_probe_resp_ie)
 351                 buflen += wpabuf_len(hapd->p2p_probe_resp_ie);
 352 #endif /* CONFIG_P2P */
 353         resp = os_zalloc(buflen);
 354         if (resp == NULL)
 355                 return;
 356         epos = ((u8 *) resp) + MAX_PROBERESP_LEN;
 357
 358         resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 359                                            WLAN_FC_STYPE_PROBE_RESP);
 360         os_memcpy(resp->da, mgmt->sa, ETH_ALEN);
 361         os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
 362
 363         os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
 364         resp->u.probe_resp.beacon_int =
 365                 host_to_le16(hapd->iconf->beacon_int);
 366
 367         /* hardware or low-level driver will setup seq_ctrl and timestamp */
 368         resp->u.probe_resp.capab_info =
 369                 host_to_le16(hostapd_own_capab_info(hapd, sta, 1));
 370
 371         pos = resp->u.probe_resp.variable;
 372         *pos++ = WLAN_EID_SSID;
 373         *pos++ = ssid_len;
 374         os_memcpy(pos, ssid, ssid_len);
 375         pos += ssid_len;
 376
 377         /* Supported rates */
 378         pos = hostapd_eid_supp_rates(hapd, pos);
 379
 380         /* DS Params */
 381         pos = hostapd_eid_ds_params(hapd, pos);
 382
 383         pos = hostapd_eid_country(hapd, pos, epos - pos);
 384
 385         /* ERP Information element */
 386         pos = hostapd_eid_erp_info(hapd, pos);
 387
 388         /* Extended supported rates */
 389         pos = hostapd_eid_ext_supp_rates(hapd, pos);
 390
 391         /* RSN, MDIE, WPA */
 392         pos = hostapd_eid_wpa(hapd, pos, epos - pos, sta);
 393
 394 #ifdef CONFIG_IEEE80211N
 395         pos = hostapd_eid_ht_capabilities(hapd, pos);
 396         pos = hostapd_eid_ht_operation(hapd, pos);
 397 #endif /* CONFIG_IEEE80211N */
 398
 399         pos = hostapd_eid_ext_capab(hapd, pos);
 400
 401         pos = hostapd_eid_interworking(hapd, pos);
 402
 403         /* Wi-Fi Alliance WMM */
 404         pos = hostapd_eid_wmm(hapd, pos);
 405
 406 #ifdef CONFIG_WPS
 407         if (hapd->conf->wps_state && hapd->wps_probe_resp_ie) {
 408                 os_memcpy(pos, wpabuf_head(hapd->wps_probe_resp_ie),
 409                           wpabuf_len(hapd->wps_probe_resp_ie));
 410                 pos += wpabuf_len(hapd->wps_probe_resp_ie);
 411         }
 412 #endif /* CONFIG_WPS */
 413
 414 #ifdef CONFIG_P2P
 415         if ((hapd->conf->p2p & P2P_ENABLED) && elems.p2p &&
 416             hapd->p2p_probe_resp_ie) {
 417                 os_memcpy(pos, wpabuf_head(hapd->p2p_probe_resp_ie),
 418                           wpabuf_len(hapd->p2p_probe_resp_ie));
 419                 pos += wpabuf_len(hapd->p2p_probe_resp_ie);
 420         }
 421 #endif /* CONFIG_P2P */
 422 #ifdef CONFIG_P2P_MANAGER
 423         if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
 424             P2P_MANAGE)
 425                 pos = hostapd_eid_p2p_manage(hapd, pos);
 426 #endif /* CONFIG_P2P_MANAGER */
 427
 428         if (hostapd_drv_send_mlme(hapd, resp, pos - (u8 *) resp) < 0)
 429                 perror("handle_probe_req: send");
 430
 431         os_free(resp);
 432
 433         wpa_printf(MSG_EXCESSIVE, "STA " MACSTR " sent probe request for %s "
 434                    "SSID", MAC2STR(mgmt->sa),
 435                    elems.ssid_len == 0 ? "broadcast" : "our");
 436 }
 437
 438
 439 static int hostapd_set_ap_isolate(struct hostapd_data *hapd, int value)
 440 {
 441         if (hapd->driver == NULL || hapd->driver->set_intra_bss == NULL)
 442                 return 0;
 443         return hapd->driver->set_intra_bss(hapd->drv_priv, !value);
 444 }
 445
 446
 447 static int hostapd_set_bss_params(struct hostapd_data *hapd,
 448                                   int use_protection)
 449 {
 450         int ret = 0;
 451         int preamble;
 452 #ifdef CONFIG_IEEE80211N
 453         u8 buf[60], *ht_capab, *ht_oper, *pos;
 454
 455         pos = buf;
 456         ht_capab = pos;
 457         pos = hostapd_eid_ht_capabilities(hapd, pos);
 458         ht_oper = pos;
 459         pos = hostapd_eid_ht_operation(hapd, pos);
 460         if (pos > ht_oper && ht_oper > ht_capab &&
 461             hostapd_set_ht_params(hapd, ht_capab + 2, ht_capab[1],
 462                                   ht_oper + 2, ht_oper[1])) {
 463                 wpa_printf(MSG_ERROR, "Could not set HT capabilities "
 464                            "for kernel driver");
 465                 ret = -1;
 466         }
 467
 468 #endif /* CONFIG_IEEE80211N */
 469
 470         if (hostapd_set_cts_protect(hapd, use_protection)) {
 471                 wpa_printf(MSG_ERROR, "Failed to set CTS protect in kernel "
 472                            "driver");
 473                 ret = -1;
 474         }
 475
 476         if (hapd->iface->current_mode &&
 477             hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G &&
 478             hostapd_set_short_slot_time(hapd,
 479                                         hapd->iface->num_sta_no_short_slot_time
 480                                         > 0 ? 0 : 1)) {
 481                 wpa_printf(MSG_ERROR, "Failed to set Short Slot Time option "
 482                            "in kernel driver");
 483                 ret = -1;
 484         }
 485
 486         if (hapd->iface->num_sta_no_short_preamble == 0 &&
 487             hapd->iconf->preamble == SHORT_PREAMBLE)
 488                 preamble = SHORT_PREAMBLE;
 489         else
 490                 preamble = LONG_PREAMBLE;
 491         if (hostapd_set_preamble(hapd, preamble)) {
 492                 wpa_printf(MSG_ERROR, "Could not set preamble for kernel "
 493                            "driver");
 494                 ret = -1;
 495         }
 496
 497         if (hostapd_set_ap_isolate(hapd, hapd->conf->isolate) &&
 498             hapd->conf->isolate) {
 499                 wpa_printf(MSG_ERROR, "Could not enable AP isolation in "
 500                            "kernel driver");
 501                 ret = -1;
 502         }
 503
 504         return ret;
 505 }
 506
 507 #endif /* NEED_AP_MLME */
 508
 509
 510 void ieee802_11_set_beacon(struct hostapd_data *hapd)
 511 {
 512         struct ieee80211_mgmt *head = NULL;
 513         u8 *tail = NULL;
 514         size_t head_len = 0, tail_len = 0;
 515         struct wpa_driver_ap_params params;
 516         struct wpabuf *beacon, *proberesp, *assocresp;
 517 #ifdef NEED_AP_MLME
 518         u16 capab_info;
 519         u8 *pos, *tailpos;
 520 #endif /* NEED_AP_MLME */
 521
 522         hapd->beacon_set_done = 1;
 523
 524 #ifdef NEED_AP_MLME
 525
 526 #define BEACON_HEAD_BUF_SIZE 256
 527 #define BEACON_TAIL_BUF_SIZE 512
 528         head = os_zalloc(BEACON_HEAD_BUF_SIZE);
 529         tail_len = BEACON_TAIL_BUF_SIZE;
 530 #ifdef CONFIG_WPS
 531         if (hapd->conf->wps_state && hapd->wps_beacon_ie)
 532                 tail_len += wpabuf_len(hapd->wps_beacon_ie);
 533 #endif /* CONFIG_WPS */
 534 #ifdef CONFIG_P2P
 535         if (hapd->p2p_beacon_ie)
 536                 tail_len += wpabuf_len(hapd->p2p_beacon_ie);
 537 #endif /* CONFIG_P2P */
 538         tailpos = tail = os_malloc(tail_len);
 539         if (head == NULL || tail == NULL) {
 540                 wpa_printf(MSG_ERROR, "Failed to set beacon data");
 541                 os_free(head);
 542                 os_free(tail);
 543                 return;
 544         }
 545
 546         head->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 547                                            WLAN_FC_STYPE_BEACON);
 548         head->duration = host_to_le16(0);
 549         os_memset(head->da, 0xff, ETH_ALEN);
 550
 551         os_memcpy(head->sa, hapd->own_addr, ETH_ALEN);
 552         os_memcpy(head->bssid, hapd->own_addr, ETH_ALEN);
 553         head->u.beacon.beacon_int =
 554                 host_to_le16(hapd->iconf->beacon_int);
 555
 556         /* hardware or low-level driver will setup seq_ctrl and timestamp */
 557         capab_info = hostapd_own_capab_info(hapd, NULL, 0);
 558         head->u.beacon.capab_info = host_to_le16(capab_info);
 559         pos = &head->u.beacon.variable[0];
 560
 561         /* SSID */
 562         *pos++ = WLAN_EID_SSID;
 563         if (hapd->conf->ignore_broadcast_ssid == 2) {
 564                 /* clear the data, but keep the correct length of the SSID */
 565                 *pos++ = hapd->conf->ssid.ssid_len;
 566                 os_memset(pos, 0, hapd->conf->ssid.ssid_len);
 567                 pos += hapd->conf->ssid.ssid_len;
 568         } else if (hapd->conf->ignore_broadcast_ssid) {
 569                 *pos++ = 0; /* empty SSID */
 570         } else {
 571                 *pos++ = hapd->conf->ssid.ssid_len;
 572                 os_memcpy(pos, hapd->conf->ssid.ssid,
 573                           hapd->conf->ssid.ssid_len);
 574                 pos += hapd->conf->ssid.ssid_len;
 575         }
 576
 577         /* Supported rates */
 578         pos = hostapd_eid_supp_rates(hapd, pos);
 579
 580         /* DS Params */
 581         pos = hostapd_eid_ds_params(hapd, pos);
 582
 583         head_len = pos - (u8 *) head;
 584
 585         tailpos = hostapd_eid_country(hapd, tailpos,
 586                                       tail + BEACON_TAIL_BUF_SIZE - tailpos);
 587
 588         /* ERP Information element */
 589         tailpos = hostapd_eid_erp_info(hapd, tailpos);
 590
 591         /* Extended supported rates */
 592         tailpos = hostapd_eid_ext_supp_rates(hapd, tailpos);
 593
 594         /* RSN, MDIE, WPA */
 595         tailpos = hostapd_eid_wpa(hapd, tailpos, tail + BEACON_TAIL_BUF_SIZE -
 596                                   tailpos, NULL);
 597
 598 #ifdef CONFIG_IEEE80211N
 599         tailpos = hostapd_eid_ht_capabilities(hapd, tailpos);
 600         tailpos = hostapd_eid_ht_operation(hapd, tailpos);
 601 #endif /* CONFIG_IEEE80211N */
 602
 603         tailpos = hostapd_eid_ext_capab(hapd, tailpos);
 604
 605         tailpos = hostapd_eid_interworking(hapd, tailpos);
 606
 607         /* Wi-Fi Alliance WMM */
 608         tailpos = hostapd_eid_wmm(hapd, tailpos);
 609
 610 #ifdef CONFIG_WPS
 611         if (hapd->conf->wps_state && hapd->wps_beacon_ie) {
 612                 os_memcpy(tailpos, wpabuf_head(hapd->wps_beacon_ie),
 613                           wpabuf_len(hapd->wps_beacon_ie));
 614                 tailpos += wpabuf_len(hapd->wps_beacon_ie);
 615         }
 616 #endif /* CONFIG_WPS */
 617
 618 #ifdef CONFIG_P2P
 619         if ((hapd->conf->p2p & P2P_ENABLED) && hapd->p2p_beacon_ie) {
 620                 os_memcpy(tailpos, wpabuf_head(hapd->p2p_beacon_ie),
 621                           wpabuf_len(hapd->p2p_beacon_ie));
 622                 tailpos += wpabuf_len(hapd->p2p_beacon_ie);
 623         }
 624 #endif /* CONFIG_P2P */
 625 #ifdef CONFIG_P2P_MANAGER
 626         if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
 627             P2P_MANAGE)
 628                 tailpos = hostapd_eid_p2p_manage(hapd, tailpos);
 629 #endif /* CONFIG_P2P_MANAGER */
 630
 631         tail_len = tailpos > tail ? tailpos - tail : 0;
 632
 633 #endif /* NEED_AP_MLME */
 634
 635         os_memset(&params, 0, sizeof(params));
 636         params.head = (u8 *) head;
 637         params.head_len = head_len;
 638         params.tail = tail;
 639         params.tail_len = tail_len;
 640         params.dtim_period = hapd->conf->dtim_period;
 641         params.beacon_int = hapd->iconf->beacon_int;
 642         params.ssid = (u8 *) hapd->conf->ssid.ssid;
 643         params.ssid_len = hapd->conf->ssid.ssid_len;
 644         params.pairwise_ciphers = hapd->conf->rsn_pairwise ?
 645                 hapd->conf->rsn_pairwise : hapd->conf->wpa_pairwise;
 646         params.group_cipher = hapd->conf->wpa_group;
 647         params.key_mgmt_suites = hapd->conf->wpa_key_mgmt;
 648         params.auth_algs = hapd->conf->auth_algs;
 649         params.wpa_version = hapd->conf->wpa;
 650         params.privacy = hapd->conf->ssid.wep.keys_set || hapd->conf->wpa ||
 651                 (hapd->conf->ieee802_1x &&
 652                  (hapd->conf->default_wep_key_len ||
 653                   hapd->conf->individual_wep_key_len));
 654         switch (hapd->conf->ignore_broadcast_ssid) {
 655         case 0:
 656                 params.hide_ssid = NO_SSID_HIDING;
 657                 break;
 658         case 1:
 659                 params.hide_ssid = HIDDEN_SSID_ZERO_LEN;
 660                 break;
 661         case 2:
 662                 params.hide_ssid = HIDDEN_SSID_ZERO_CONTENTS;
 663                 break;
 664         }
 665         hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp);
 666         params.beacon_ies = beacon;
 667         params.proberesp_ies = proberesp;
 668         params.assocresp_ies = assocresp;
 669         if (hostapd_drv_set_ap(hapd, &params))
 670                 wpa_printf(MSG_ERROR, "Failed to set beacon parameters");
 671         hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
 672
 673         os_free(tail);
 674         os_free(head);
 675
 676 #ifdef NEED_AP_MLME
 677         hostapd_set_bss_params(hapd, !!(ieee802_11_erp_info(hapd) &
 678                                         ERP_INFO_USE_PROTECTION));
 679 #endif /* NEED_AP_MLME */
 680 }
 681
 682
 683 void ieee802_11_set_beacons(struct hostapd_iface *iface)
 684 {
 685         size_t i;
 686         for (i = 0; i < iface->num_bss; i++)
 687                 ieee802_11_set_beacon(iface->bss[i]);
 688 }
 689
 690 #endif /* CONFIG_NATIVE_WINDOWS */