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hostapd: Initial IEEE 802.11ac (VHT) definitions
[thirdparty/hostap.git] / src / ap / beacon.c
CommitLineData
6fc6879b
JM		 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.
a49148fd 5 * Copyright (c) 2008-2009, Jouni Malinen <j@w1.fi>
6fc6879b
JM		 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
6226e38d 17#include "utils/includes.h"
6fc6879b
JM		 18
19#ifndef CONFIG_NATIVE_WINDOWS
20
6226e38d 21#include "utils/common.h"
81f4f619
JM		 22#include "common/ieee802_11_defs.h"
23#include "common/ieee802_11_common.h"
6226e38d 24#include "drivers/driver.h"
e44f8bf2
JM		 25#include "wps/wps_defs.h"
26#include "p2p/p2p.h"
6fc6879b
JM		 27#include "hostapd.h"
28#include "ieee802_11.h"
6226e38d 29#include "wpa_auth.h"
1057d78e 30#include "wmm.h"
6226e38d 31#include "ap_config.h"
6fc6879b 32#include "sta_info.h"
dce044cc 33#include "p2p_hostapd.h"
cee7d66b 34#include "ap_drv_ops.h"
6226e38d 35#include "beacon.h"
6fc6879b
JM		 36
37
062390ef
JM		 38#ifdef NEED_AP_MLME
39
6fc6879b
JM		 40static 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
735f6522
JM		 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;
6fc6879b 53 }
a0fad210
JM		 54 if (hapd->iface->num_sta_no_short_preamble > 0 ||
55 hapd->iconf->preamble == LONG_PREAMBLE)
6fc6879b
JM		 56 erp |= ERP_INFO_BARKER_PREAMBLE_MODE;
57
58 return erp;
59}
60
61
62static 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
71static 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
df73d284
JM		 95static 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
6fc6879b
JM		 113static u8 * hostapd_eid_country(struct hostapd_data *hapd, u8 *eid,
114 int max_len)
115{
116 u8 *pos = eid;
df73d284
JM		 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)
6fc6879b
JM		 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
df73d284
JM		 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;
6fc6879b 166 *pos++ = 0; /* pad for 16-bit alignment */
df73d284 167 }
6fc6879b
JM		 168
169 eid[1] = (pos - eid) - 2;
170
171 return pos;
172}
173
174
6c0575c3 175static u8 * hostapd_eid_wpa(struct hostapd_data *hapd, u8 *eid, size_t len)
6fc6879b
JM		 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
eacc6b24
AN		 189static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
190 struct sta_info *sta,
191 const struct ieee80211_mgmt *req,
192 int is_p2p, size_t *resp_len)
193{
194 struct ieee80211_mgmt *resp;
195 u8 *pos, *epos;
196 size_t buflen;
197
198#define MAX_PROBERESP_LEN 768
199 buflen = MAX_PROBERESP_LEN;
200#ifdef CONFIG_WPS
201 if (hapd->wps_probe_resp_ie)
202 buflen += wpabuf_len(hapd->wps_probe_resp_ie);
203#endif /* CONFIG_WPS */
204#ifdef CONFIG_P2P
205 if (hapd->p2p_probe_resp_ie)
206 buflen += wpabuf_len(hapd->p2p_probe_resp_ie);
207#endif /* CONFIG_P2P */
208 resp = os_zalloc(buflen);
209 if (resp == NULL)
210 return NULL;
211
212 epos = ((u8 *) resp) + MAX_PROBERESP_LEN;
213
214 resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
215 WLAN_FC_STYPE_PROBE_RESP);
216 if (req)
217 os_memcpy(resp->da, req->sa, ETH_ALEN);
218 os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
219
220 os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
221 resp->u.probe_resp.beacon_int =
222 host_to_le16(hapd->iconf->beacon_int);
223
224 /* hardware or low-level driver will setup seq_ctrl and timestamp */
225 resp->u.probe_resp.capab_info =
226 host_to_le16(hostapd_own_capab_info(hapd, sta, 1));
227
228 pos = resp->u.probe_resp.variable;
229 *pos++ = WLAN_EID_SSID;
230 *pos++ = hapd->conf->ssid.ssid_len;
231 os_memcpy(pos, hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len);
232 pos += hapd->conf->ssid.ssid_len;
233
234 /* Supported rates */
235 pos = hostapd_eid_supp_rates(hapd, pos);
236
237 /* DS Params */
238 pos = hostapd_eid_ds_params(hapd, pos);
239
240 pos = hostapd_eid_country(hapd, pos, epos - pos);
241
242 /* ERP Information element */
243 pos = hostapd_eid_erp_info(hapd, pos);
244
245 /* Extended supported rates */
246 pos = hostapd_eid_ext_supp_rates(hapd, pos);
247
248 /* RSN, MDIE, WPA */
249 pos = hostapd_eid_wpa(hapd, pos, epos - pos);
250
251#ifdef CONFIG_IEEE80211N
252 pos = hostapd_eid_ht_capabilities(hapd, pos);
253 pos = hostapd_eid_ht_operation(hapd, pos);
254#endif /* CONFIG_IEEE80211N */
255
256 pos = hostapd_eid_ext_capab(hapd, pos);
257
258 pos = hostapd_eid_time_adv(hapd, pos);
259 pos = hostapd_eid_time_zone(hapd, pos);
260
261 pos = hostapd_eid_interworking(hapd, pos);
262 pos = hostapd_eid_adv_proto(hapd, pos);
263 pos = hostapd_eid_roaming_consortium(hapd, pos);
264
265 /* Wi-Fi Alliance WMM */
266 pos = hostapd_eid_wmm(hapd, pos);
267
268#ifdef CONFIG_WPS
269 if (hapd->conf->wps_state && hapd->wps_probe_resp_ie) {
270 os_memcpy(pos, wpabuf_head(hapd->wps_probe_resp_ie),
271 wpabuf_len(hapd->wps_probe_resp_ie));
272 pos += wpabuf_len(hapd->wps_probe_resp_ie);
273 }
274#endif /* CONFIG_WPS */
275
276#ifdef CONFIG_P2P
277 if ((hapd->conf->p2p & P2P_ENABLED) && is_p2p &&
278 hapd->p2p_probe_resp_ie) {
279 os_memcpy(pos, wpabuf_head(hapd->p2p_probe_resp_ie),
280 wpabuf_len(hapd->p2p_probe_resp_ie));
281 pos += wpabuf_len(hapd->p2p_probe_resp_ie);
282 }
283#endif /* CONFIG_P2P */
284#ifdef CONFIG_P2P_MANAGER
285 if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
286 P2P_MANAGE)
287 pos = hostapd_eid_p2p_manage(hapd, pos);
288#endif /* CONFIG_P2P_MANAGER */
289
290 *resp_len = pos - (u8 *) resp;
291 return (u8 *) resp;
292}
293
294
b57e086c 295void handle_probe_req(struct hostapd_data *hapd,
baf513d6
JB		 296 const struct ieee80211_mgmt *mgmt, size_t len,
297 int ssi_signal)
6fc6879b 298{
eacc6b24 299 u8 *resp;
6fc6879b 300 struct ieee802_11_elems elems;
b57e086c 301 const u8 *ie;
eacc6b24 302 size_t ie_len;
6fc6879b 303 struct sta_info *sta = NULL;
eacc6b24 304 size_t i, resp_len;
9a898ee8 305 int noack;
6fc6879b
JM		 306
307 ie = mgmt->u.probe_req.variable;
cbcf92b4
JM		 308 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
309 return;
6fc6879b
JM		 310 ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
311
94709ea3 312 for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++)
cd7d80f3 313 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
04a85e44 314 mgmt->sa, mgmt->da, mgmt->bssid,
baf513d6 315 ie, ie_len, ssi_signal) > 0)
cd7d80f3 316 return;
ad08c363 317
6fc6879b
JM		 318 if (!hapd->iconf->send_probe_response)
319 return;
320
3d536eb4 321 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
6fc6879b
JM		 322 wpa_printf(MSG_DEBUG, "Could not parse ProbeReq from " MACSTR,
323 MAC2STR(mgmt->sa));
324 return;
325 }
326
6fc6879b
JM		 327 if ((!elems.ssid || !elems.supp_rates)) {
328 wpa_printf(MSG_DEBUG, "STA " MACSTR " sent probe request "
329 "without SSID or supported rates element",
330 MAC2STR(mgmt->sa));
331 return;
332 }
333
e44f8bf2
JM		 334#ifdef CONFIG_P2P
335 if (hapd->p2p && elems.wps_ie) {
336 struct wpabuf *wps;
337 wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
338 if (wps && !p2p_group_match_dev_type(hapd->p2p_group, wps)) {
339 wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
340 "due to mismatch with Requested Device "
341 "Type");
342 wpabuf_free(wps);
343 return;
344 }
345 wpabuf_free(wps);
346 }
8017b538
JM		 347
348 if (hapd->p2p && elems.p2p) {
349 struct wpabuf *p2p;
350 p2p = ieee802_11_vendor_ie_concat(ie, ie_len, P2P_IE_VENDOR_TYPE);
351 if (p2p && !p2p_group_match_dev_id(hapd->p2p_group, p2p)) {
352 wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
353 "due to mismatch with Device ID");
354 wpabuf_free(p2p);
355 return;
356 }
357 wpabuf_free(p2p);
358 }
e44f8bf2
JM		 359#endif /* CONFIG_P2P */
360
6fc6879b
JM		 361 if (hapd->conf->ignore_broadcast_ssid && elems.ssid_len == 0) {
362 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR " for "
363 "broadcast SSID ignored", MAC2STR(mgmt->sa));
364 return;
365 }
366
367 sta = ap_get_sta(hapd, mgmt->sa);
368
e44f8bf2
JM		 369#ifdef CONFIG_P2P
370 if ((hapd->conf->p2p & P2P_GROUP_OWNER) &&
371 elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
372 os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
373 P2P_WILDCARD_SSID_LEN) == 0) {
374 /* Process P2P Wildcard SSID like Wildcard SSID */
375 elems.ssid_len = 0;
376 }
377#endif /* CONFIG_P2P */
378
6fc6879b
JM		 379 if (elems.ssid_len == 0 ||
380 (elems.ssid_len == hapd->conf->ssid.ssid_len &&
381 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) ==
382 0)) {
6fc6879b
JM		 383 if (sta)
384 sta->ssid_probe = &hapd->conf->ssid;
eacc6b24 385 } else {
6fc6879b
JM		 386 if (!(mgmt->da[0] & 0x01)) {
387 char ssid_txt[33];
388 ieee802_11_print_ssid(ssid_txt, elems.ssid,
389 elems.ssid_len);
390 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
2d8bf732
JM		 391 " for foreign SSID '%s' (DA " MACSTR ")",
392 MAC2STR(mgmt->sa), ssid_txt,
393 MAC2STR(mgmt->da));
6fc6879b
JM		 394 }
395 return;
396 }
397
122ba579
JM		 398#ifdef CONFIG_INTERWORKING
399 if (elems.interworking && elems.interworking_len >= 1) {
400 u8 ant = elems.interworking[0] & 0x0f;
401 if (ant != INTERWORKING_ANT_WILDCARD &&
402 ant != hapd->conf->access_network_type) {
403 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
404 " for mismatching ANT %u ignored",
405 MAC2STR(mgmt->sa), ant);
406 return;
407 }
408 }
409
410 if (elems.interworking &&
411 (elems.interworking_len == 7 || elems.interworking_len == 9)) {
412 const u8 *hessid;
413 if (elems.interworking_len == 7)
414 hessid = elems.interworking + 1;
415 else
416 hessid = elems.interworking + 1 + 2;
417 if (!is_broadcast_ether_addr(hessid) &&
418 os_memcmp(hessid, hapd->conf->hessid, ETH_ALEN) != 0) {
419 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
420 " for mismatching HESSID " MACSTR
421 " ignored",
422 MAC2STR(mgmt->sa), MAC2STR(hessid));
423 return;
424 }
425 }
426#endif /* CONFIG_INTERWORKING */
427
6fc6879b
JM		 428 /* TODO: verify that supp_rates contains at least one matching rate
429 * with AP configuration */
eacc6b24
AN		 430
431 resp = hostapd_gen_probe_resp(hapd, sta, mgmt, elems.p2p != NULL,
432 &resp_len);
6fc6879b
JM		 433 if (resp == NULL)
434 return;
e44f8bf2 435
9a898ee8
HS		 436 /*
437 * If this is a broadcast probe request, apply no ack policy to avoid
438 * excessive retries.
439 */
440 noack = !!(elems.ssid_len == 0 && is_broadcast_ether_addr(mgmt->da));
441
eacc6b24 442 if (hostapd_drv_send_mlme(hapd, resp, resp_len, noack) < 0)
6fc6879b
JM		 443 perror("handle_probe_req: send");
444
445 os_free(resp);
446
2d8bf732 447 wpa_printf(MSG_EXCESSIVE, "STA " MACSTR " sent probe request for %s "
6fc6879b
JM		 448 "SSID", MAC2STR(mgmt->sa),
449 elems.ssid_len == 0 ? "broadcast" : "our");
450}
451
5b99e21a
AN		 452
453static u8 * hostapd_probe_resp_offloads(struct hostapd_data *hapd,
454 size_t *resp_len)
455{
456 /* check probe response offloading caps and print warnings */
457 if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD))
458 return NULL;
459
460#ifdef CONFIG_WPS
461 if (hapd->conf->wps_state && hapd->wps_probe_resp_ie &&
462 (!(hapd->iface->probe_resp_offloads &
463 (WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS |
464 WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2))))
465 wpa_printf(MSG_WARNING, "Device is trying to offload WPS "
466 "Probe Response while not supporting this");
467#endif /* CONFIG_WPS */
468
469#ifdef CONFIG_P2P
470 if ((hapd->conf->p2p & P2P_ENABLED) && hapd->p2p_probe_resp_ie &&
471 !(hapd->iface->probe_resp_offloads &
472 WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P))
473 wpa_printf(MSG_WARNING, "Device is trying to offload P2P "
474 "Probe Response while not supporting this");
475#endif /* CONFIG_P2P */
476
477 if (hapd->conf->interworking &&
478 !(hapd->iface->probe_resp_offloads &
479 WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING))
480 wpa_printf(MSG_WARNING, "Device is trying to offload "
481 "Interworking Probe Response while not supporting "
482 "this");
483
484 /* Generate a Probe Response template for the non-P2P case */
485 return hostapd_gen_probe_resp(hapd, NULL, NULL, 0, resp_len);
486}
487
062390ef
JM		 488#endif /* NEED_AP_MLME */
489
490
6fc6879b
JM		 491void ieee802_11_set_beacon(struct hostapd_data *hapd)
492{
062390ef
JM		 493 struct ieee80211_mgmt *head = NULL;
494 u8 *tail = NULL;
495 size_t head_len = 0, tail_len = 0;
5b99e21a
AN		 496 u8 *resp = NULL;
497 size_t resp_len = 0;
19c3b566 498 struct wpa_driver_ap_params params;
fb91db56 499 struct wpabuf *beacon, *proberesp, *assocresp;
062390ef
JM		 500#ifdef NEED_AP_MLME
501 u16 capab_info;
502 u8 *pos, *tailpos;
503#endif /* NEED_AP_MLME */
6fc6879b 504
bc45d427 505 hapd->beacon_set_done = 1;
e44f8bf2 506
062390ef
JM		 507#ifdef NEED_AP_MLME
508
6fc6879b
JM		 509#define BEACON_HEAD_BUF_SIZE 256
510#define BEACON_TAIL_BUF_SIZE 512
511 head = os_zalloc(BEACON_HEAD_BUF_SIZE);
1c08f8c0
JM		 512 tail_len = BEACON_TAIL_BUF_SIZE;
513#ifdef CONFIG_WPS
514 if (hapd->conf->wps_state && hapd->wps_beacon_ie)
515 tail_len += wpabuf_len(hapd->wps_beacon_ie);
516#endif /* CONFIG_WPS */
e44f8bf2
JM		 517#ifdef CONFIG_P2P
518 if (hapd->p2p_beacon_ie)
519 tail_len += wpabuf_len(hapd->p2p_beacon_ie);
520#endif /* CONFIG_P2P */
1c08f8c0 521 tailpos = tail = os_malloc(tail_len);
6fc6879b
JM		 522 if (head == NULL || tail == NULL) {
523 wpa_printf(MSG_ERROR, "Failed to set beacon data");
524 os_free(head);
525 os_free(tail);
526 return;
527 }
528
529 head->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
530 WLAN_FC_STYPE_BEACON);
531 head->duration = host_to_le16(0);
532 os_memset(head->da, 0xff, ETH_ALEN);
533
534 os_memcpy(head->sa, hapd->own_addr, ETH_ALEN);
535 os_memcpy(head->bssid, hapd->own_addr, ETH_ALEN);
536 head->u.beacon.beacon_int =
537 host_to_le16(hapd->iconf->beacon_int);
538
539 /* hardware or low-level driver will setup seq_ctrl and timestamp */
540 capab_info = hostapd_own_capab_info(hapd, NULL, 0);
541 head->u.beacon.capab_info = host_to_le16(capab_info);
542 pos = &head->u.beacon.variable[0];
543
544 /* SSID */
545 *pos++ = WLAN_EID_SSID;
546 if (hapd->conf->ignore_broadcast_ssid == 2) {
547 /* clear the data, but keep the correct length of the SSID */
548 *pos++ = hapd->conf->ssid.ssid_len;
549 os_memset(pos, 0, hapd->conf->ssid.ssid_len);
550 pos += hapd->conf->ssid.ssid_len;
551 } else if (hapd->conf->ignore_broadcast_ssid) {
552 *pos++ = 0; /* empty SSID */
553 } else {
554 *pos++ = hapd->conf->ssid.ssid_len;
555 os_memcpy(pos, hapd->conf->ssid.ssid,
556 hapd->conf->ssid.ssid_len);
557 pos += hapd->conf->ssid.ssid_len;
558 }
559
560 /* Supported rates */
561 pos = hostapd_eid_supp_rates(hapd, pos);
562
563 /* DS Params */
564 pos = hostapd_eid_ds_params(hapd, pos);
565
566 head_len = pos - (u8 *) head;
567
568 tailpos = hostapd_eid_country(hapd, tailpos,
569 tail + BEACON_TAIL_BUF_SIZE - tailpos);
570
6fc6879b
JM		 571 /* ERP Information element */
572 tailpos = hostapd_eid_erp_info(hapd, tailpos);
573
574 /* Extended supported rates */
575 tailpos = hostapd_eid_ext_supp_rates(hapd, tailpos);
576
1bc774a1 577 /* RSN, MDIE, WPA */
6fc6879b 578 tailpos = hostapd_eid_wpa(hapd, tailpos, tail + BEACON_TAIL_BUF_SIZE -
6c0575c3 579 tailpos);
6fc6879b 580
de9289c8 581#ifdef CONFIG_IEEE80211N
677449b9
JM		 582 tailpos = hostapd_eid_ht_capabilities(hapd, tailpos);
583 tailpos = hostapd_eid_ht_operation(hapd, tailpos);
de9289c8
JM		 584#endif /* CONFIG_IEEE80211N */
585
1161ff1e
JM		 586 tailpos = hostapd_eid_ext_capab(hapd, tailpos);
587
39b97072
JM		 588 /*
589 * TODO: Time Advertisement element should only be included in some
590 * DTIM Beacon frames.
591 */
592 tailpos = hostapd_eid_time_adv(hapd, tailpos);
593
b83e3e93 594 tailpos = hostapd_eid_interworking(hapd, tailpos);
c7c178e1 595 tailpos = hostapd_eid_adv_proto(hapd, tailpos);
4b2a77ab 596 tailpos = hostapd_eid_roaming_consortium(hapd, tailpos);
b83e3e93 597
1bc774a1
JM		 598 /* Wi-Fi Alliance WMM */
599 tailpos = hostapd_eid_wmm(hapd, tailpos);
600
ad08c363
JM		 601#ifdef CONFIG_WPS
602 if (hapd->conf->wps_state && hapd->wps_beacon_ie) {
14f79386
JM		 603 os_memcpy(tailpos, wpabuf_head(hapd->wps_beacon_ie),
604 wpabuf_len(hapd->wps_beacon_ie));
605 tailpos += wpabuf_len(hapd->wps_beacon_ie);
ad08c363
JM		 606 }
607#endif /* CONFIG_WPS */
608
e44f8bf2
JM		 609#ifdef CONFIG_P2P
610 if ((hapd->conf->p2p & P2P_ENABLED) && hapd->p2p_beacon_ie) {
611 os_memcpy(tailpos, wpabuf_head(hapd->p2p_beacon_ie),
612 wpabuf_len(hapd->p2p_beacon_ie));
613 tailpos += wpabuf_len(hapd->p2p_beacon_ie);
614 }
615#endif /* CONFIG_P2P */
962473c1
JM		 616#ifdef CONFIG_P2P_MANAGER
617 if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
618 P2P_MANAGE)
619 tailpos = hostapd_eid_p2p_manage(hapd, tailpos);
620#endif /* CONFIG_P2P_MANAGER */
e44f8bf2 621
6fc6879b
JM		 622 tail_len = tailpos > tail ? tailpos - tail : 0;
623
5b99e21a 624 resp = hostapd_probe_resp_offloads(hapd, &resp_len);
062390ef
JM		 625#endif /* NEED_AP_MLME */
626
19c3b566
JM		 627 os_memset(&params, 0, sizeof(params));
628 params.head = (u8 *) head;
629 params.head_len = head_len;
630 params.tail = tail;
631 params.tail_len = tail_len;
5b99e21a
AN		 632 params.proberesp = resp;
633 params.proberesp_len = resp_len;
19c3b566
JM		 634 params.dtim_period = hapd->conf->dtim_period;
635 params.beacon_int = hapd->iconf->beacon_int;
e5693c47 636 params.basic_rates = hapd->iconf->basic_rates;
ccb941e6
JM		 637 params.ssid = (u8 *) hapd->conf->ssid.ssid;
638 params.ssid_len = hapd->conf->ssid.ssid_len;
b11d1d64
JM		 639 params.pairwise_ciphers = hapd->conf->rsn_pairwise ?
640 hapd->conf->rsn_pairwise : hapd->conf->wpa_pairwise;
641 params.group_cipher = hapd->conf->wpa_group;
642 params.key_mgmt_suites = hapd->conf->wpa_key_mgmt;
643 params.auth_algs = hapd->conf->auth_algs;
644 params.wpa_version = hapd->conf->wpa;
645 params.privacy = hapd->conf->ssid.wep.keys_set || hapd->conf->wpa ||
646 (hapd->conf->ieee802_1x &&
647 (hapd->conf->default_wep_key_len ||
648 hapd->conf->individual_wep_key_len));
97a7a0b5
JM		 649 switch (hapd->conf->ignore_broadcast_ssid) {
650 case 0:
651 params.hide_ssid = NO_SSID_HIDING;
652 break;
653 case 1:
654 params.hide_ssid = HIDDEN_SSID_ZERO_LEN;
655 break;
656 case 2:
657 params.hide_ssid = HIDDEN_SSID_ZERO_CONTENTS;
658 break;
659 }
fb91db56
JM		 660 hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp);
661 params.beacon_ies = beacon;
662 params.proberesp_ies = proberesp;
663 params.assocresp_ies = assocresp;
fd13a541 664 params.isolate = hapd->conf->isolate;
31357268
JM		 665#ifdef NEED_AP_MLME
666 params.cts_protect = !!(ieee802_11_erp_info(hapd) &
667 ERP_INFO_USE_PROTECTION);
668 params.preamble = hapd->iface->num_sta_no_short_preamble == 0 &&
669 hapd->iconf->preamble == SHORT_PREAMBLE;
670 if (hapd->iface->current_mode &&
671 hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G)
672 params.short_slot_time =
673 hapd->iface->num_sta_no_short_slot_time > 0 ? 0 : 1;
674 else
675 params.short_slot_time = -1;
676 if (!hapd->iconf->ieee80211n || hapd->conf->disable_11n)
677 params.ht_opmode = -1;
678 else
679 params.ht_opmode = hapd->iface->ht_op_mode;
680#endif /* NEED_AP_MLME */
8a33a63f
JM		 681 params.interworking = hapd->conf->interworking;
682 if (hapd->conf->interworking &&
683 !is_zero_ether_addr(hapd->conf->hessid))
684 params.hessid = hapd->conf->hessid;
16991cff 685 params.access_network_type = hapd->conf->access_network_type;
a0133ee1 686 params.ap_max_inactivity = hapd->conf->ap_max_inactivity;
19c3b566
JM		 687 if (hostapd_drv_set_ap(hapd, &params))
688 wpa_printf(MSG_ERROR, "Failed to set beacon parameters");
fb91db56 689 hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
6fc6879b
JM		 690
691 os_free(tail);
692 os_free(head);
5b99e21a 693 os_free(resp);
6fc6879b
JM		 694}
695
696
697void ieee802_11_set_beacons(struct hostapd_iface *iface)
698{
699 size_t i;
700 for (i = 0; i < iface->num_bss; i++)
701 ieee802_11_set_beacon(iface->bss[i]);
702}
703
370b0761
LC		 704
705/* only update beacons if started */
706void ieee802_11_update_beacons(struct hostapd_iface *iface)
707{
708 size_t i;
709 for (i = 0; i < iface->num_bss; i++)
710 if (iface->bss[i]->beacon_set_done)
711 ieee802_11_set_beacon(iface->bss[i]);
712}
713
6fc6879b 714#endif /* CONFIG_NATIVE_WINDOWS */
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