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
ieee802_11_erp_info(struct hostapd_data * hapd)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
hostapd_eid_ds_params(struct hostapd_data * hapd,u8 * eid)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
hostapd_eid_erp_info(struct hostapd_data * hapd,u8 * eid)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
hostapd_eid_country_add(u8 * pos,u8 * end,int chan_spacing,struct hostapd_channel_data * start,struct hostapd_channel_data * prev)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
hostapd_eid_country(struct hostapd_data * hapd,u8 * eid,int max_len)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
hostapd_eid_wpa(struct hostapd_data * hapd,u8 * eid,size_t len)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
hostapd_gen_probe_resp(struct hostapd_data * hapd,struct sta_info * sta,const struct ieee80211_mgmt * req,int is_p2p,size_t * resp_len)189 static 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
handle_probe_req(struct hostapd_data * hapd,const struct ieee80211_mgmt * mgmt,size_t len)295 void handle_probe_req(struct hostapd_data *hapd,
296 const struct ieee80211_mgmt *mgmt, size_t len)
297 {
298 u8 *resp;
299 struct ieee802_11_elems elems;
300 const u8 *ie;
301 size_t ie_len;
302 struct sta_info *sta = NULL;
303 size_t i, resp_len;
304 int noack;
305
306 ie = mgmt->u.probe_req.variable;
307 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
308 return;
309 ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
310
311 for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++)
312 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
313 mgmt->sa, mgmt->da, mgmt->bssid,
314 ie, ie_len) > 0)
315 return;
316
317 if (!hapd->iconf->send_probe_response)
318 return;
319
320 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
321 wpa_printf(MSG_DEBUG, "Could not parse ProbeReq from " MACSTR,
322 MAC2STR(mgmt->sa));
323 return;
324 }
325
326 if ((!elems.ssid || !elems.supp_rates)) {
327 wpa_printf(MSG_DEBUG, "STA " MACSTR " sent probe request "
328 "without SSID or supported rates element",
329 MAC2STR(mgmt->sa));
330 return;
331 }
332
333 #ifdef CONFIG_P2P
334 if (hapd->p2p && elems.wps_ie) {
335 struct wpabuf *wps;
336 wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
337 if (wps && !p2p_group_match_dev_type(hapd->p2p_group, wps)) {
338 wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
339 "due to mismatch with Requested Device "
340 "Type");
341 wpabuf_free(wps);
342 return;
343 }
344 wpabuf_free(wps);
345 }
346
347 if (hapd->p2p && elems.p2p) {
348 struct wpabuf *p2p;
349 p2p = ieee802_11_vendor_ie_concat(ie, ie_len, P2P_IE_VENDOR_TYPE);
350 if (p2p && !p2p_group_match_dev_id(hapd->p2p_group, p2p)) {
351 wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
352 "due to mismatch with Device ID");
353 wpabuf_free(p2p);
354 return;
355 }
356 wpabuf_free(p2p);
357 }
358 #endif /* CONFIG_P2P */
359
360 if (hapd->conf->ignore_broadcast_ssid && elems.ssid_len == 0) {
361 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR " for "
362 "broadcast SSID ignored", MAC2STR(mgmt->sa));
363 return;
364 }
365
366 sta = ap_get_sta(hapd, mgmt->sa);
367
368 #ifdef CONFIG_P2P
369 if ((hapd->conf->p2p & P2P_GROUP_OWNER) &&
370 elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
371 os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
372 P2P_WILDCARD_SSID_LEN) == 0) {
373 /* Process P2P Wildcard SSID like Wildcard SSID */
374 elems.ssid_len = 0;
375 }
376 #endif /* CONFIG_P2P */
377
378 if (elems.ssid_len == 0 ||
379 (elems.ssid_len == hapd->conf->ssid.ssid_len &&
380 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) ==
381 0)) {
382 if (sta)
383 sta->ssid_probe = &hapd->conf->ssid;
384 } else {
385 if (!(mgmt->da[0] & 0x01)) {
386 char ssid_txt[33];
387 ieee802_11_print_ssid(ssid_txt, elems.ssid,
388 elems.ssid_len);
389 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
390 " for foreign SSID '%s' (DA " MACSTR ")",
391 MAC2STR(mgmt->sa), ssid_txt,
392 MAC2STR(mgmt->da));
393 }
394 return;
395 }
396
397 #ifdef CONFIG_INTERWORKING
398 if (elems.interworking && elems.interworking_len >= 1) {
399 u8 ant = elems.interworking[0] & 0x0f;
400 if (ant != INTERWORKING_ANT_WILDCARD &&
401 ant != hapd->conf->access_network_type) {
402 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
403 " for mismatching ANT %u ignored",
404 MAC2STR(mgmt->sa), ant);
405 return;
406 }
407 }
408
409 if (elems.interworking &&
410 (elems.interworking_len == 7 || elems.interworking_len == 9)) {
411 const u8 *hessid;
412 if (elems.interworking_len == 7)
413 hessid = elems.interworking + 1;
414 else
415 hessid = elems.interworking + 1 + 2;
416 if (!is_broadcast_ether_addr(hessid) &&
417 os_memcmp(hessid, hapd->conf->hessid, ETH_ALEN) != 0) {
418 wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
419 " for mismatching HESSID " MACSTR
420 " ignored",
421 MAC2STR(mgmt->sa), MAC2STR(hessid));
422 return;
423 }
424 }
425 #endif /* CONFIG_INTERWORKING */
426
427 /* TODO: verify that supp_rates contains at least one matching rate
428 * with AP configuration */
429
430 resp = hostapd_gen_probe_resp(hapd, sta, mgmt, elems.p2p != NULL,
431 &resp_len);
432 if (resp == NULL)
433 return;
434
435 /*
436 * If this is a broadcast probe request, apply no ack policy to avoid
437 * excessive retries.
438 */
439 noack = !!(elems.ssid_len == 0 && is_broadcast_ether_addr(mgmt->da));
440
441 if (hostapd_drv_send_mlme(hapd, resp, resp_len, noack) < 0)
442 perror("handle_probe_req: send");
443
444 os_free(resp);
445
446 wpa_printf(MSG_EXCESSIVE, "STA " MACSTR " sent probe request for %s "
447 "SSID", MAC2STR(mgmt->sa),
448 elems.ssid_len == 0 ? "broadcast" : "our");
449 }
450
451
hostapd_probe_resp_offloads(struct hostapd_data * hapd,size_t * resp_len)452 static u8 * hostapd_probe_resp_offloads(struct hostapd_data *hapd,
453 size_t *resp_len)
454 {
455 /* check probe response offloading caps and print warnings */
456 if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD))
457 return NULL;
458
459 #ifdef CONFIG_WPS
460 if (hapd->conf->wps_state && hapd->wps_probe_resp_ie &&
461 (!(hapd->iface->probe_resp_offloads &
462 (WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS |
463 WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2))))
464 wpa_printf(MSG_WARNING, "Device is trying to offload WPS "
465 "Probe Response while not supporting this");
466 #endif /* CONFIG_WPS */
467
468 #ifdef CONFIG_P2P
469 if ((hapd->conf->p2p & P2P_ENABLED) && hapd->p2p_probe_resp_ie &&
470 !(hapd->iface->probe_resp_offloads &
471 WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P))
472 wpa_printf(MSG_WARNING, "Device is trying to offload P2P "
473 "Probe Response while not supporting this");
474 #endif /* CONFIG_P2P */
475
476 if (hapd->conf->interworking &&
477 !(hapd->iface->probe_resp_offloads &
478 WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING))
479 wpa_printf(MSG_WARNING, "Device is trying to offload "
480 "Interworking Probe Response while not supporting "
481 "this");
482
483 /* Generate a Probe Response template for the non-P2P case */
484 return hostapd_gen_probe_resp(hapd, NULL, NULL, 0, resp_len);
485 }
486
487 #endif /* NEED_AP_MLME */
488
489
ieee802_11_set_beacon(struct hostapd_data * hapd)490 void ieee802_11_set_beacon(struct hostapd_data *hapd)
491 {
492 struct ieee80211_mgmt *head = NULL;
493 u8 *tail = NULL;
494 size_t head_len = 0, tail_len = 0;
495 u8 *resp = NULL;
496 size_t resp_len = 0;
497 struct wpa_driver_ap_params params;
498 struct wpabuf *beacon, *proberesp, *assocresp;
499 #ifdef NEED_AP_MLME
500 u16 capab_info;
501 u8 *pos, *tailpos;
502 #endif /* NEED_AP_MLME */
503
504 hapd->beacon_set_done = 1;
505
506 #ifdef NEED_AP_MLME
507
508 #define BEACON_HEAD_BUF_SIZE 256
509 #define BEACON_TAIL_BUF_SIZE 512
510 head = os_zalloc(BEACON_HEAD_BUF_SIZE);
511 tail_len = BEACON_TAIL_BUF_SIZE;
512 #ifdef CONFIG_WPS
513 if (hapd->conf->wps_state && hapd->wps_beacon_ie)
514 tail_len += wpabuf_len(hapd->wps_beacon_ie);
515 #endif /* CONFIG_WPS */
516 #ifdef CONFIG_P2P
517 if (hapd->p2p_beacon_ie)
518 tail_len += wpabuf_len(hapd->p2p_beacon_ie);
519 #endif /* CONFIG_P2P */
520 tailpos = tail = os_malloc(tail_len);
521 if (head == NULL || tail == NULL) {
522 wpa_printf(MSG_ERROR, "Failed to set beacon data");
523 os_free(head);
524 os_free(tail);
525 return;
526 }
527
528 head->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
529 WLAN_FC_STYPE_BEACON);
530 head->duration = host_to_le16(0);
531 os_memset(head->da, 0xff, ETH_ALEN);
532
533 os_memcpy(head->sa, hapd->own_addr, ETH_ALEN);
534 os_memcpy(head->bssid, hapd->own_addr, ETH_ALEN);
535 head->u.beacon.beacon_int =
536 host_to_le16(hapd->iconf->beacon_int);
537
538 /* hardware or low-level driver will setup seq_ctrl and timestamp */
539 capab_info = hostapd_own_capab_info(hapd, NULL, 0);
540 head->u.beacon.capab_info = host_to_le16(capab_info);
541 pos = &head->u.beacon.variable[0];
542
543 /* SSID */
544 *pos++ = WLAN_EID_SSID;
545 if (hapd->conf->ignore_broadcast_ssid == 2) {
546 /* clear the data, but keep the correct length of the SSID */
547 *pos++ = hapd->conf->ssid.ssid_len;
548 os_memset(pos, 0, hapd->conf->ssid.ssid_len);
549 pos += hapd->conf->ssid.ssid_len;
550 } else if (hapd->conf->ignore_broadcast_ssid) {
551 *pos++ = 0; /* empty SSID */
552 } else {
553 *pos++ = hapd->conf->ssid.ssid_len;
554 os_memcpy(pos, hapd->conf->ssid.ssid,
555 hapd->conf->ssid.ssid_len);
556 pos += hapd->conf->ssid.ssid_len;
557 }
558
559 /* Supported rates */
560 pos = hostapd_eid_supp_rates(hapd, pos);
561
562 /* DS Params */
563 pos = hostapd_eid_ds_params(hapd, pos);
564
565 head_len = pos - (u8 *) head;
566
567 tailpos = hostapd_eid_country(hapd, tailpos,
568 tail + BEACON_TAIL_BUF_SIZE - tailpos);
569
570 /* ERP Information element */
571 tailpos = hostapd_eid_erp_info(hapd, tailpos);
572
573 /* Extended supported rates */
574 tailpos = hostapd_eid_ext_supp_rates(hapd, tailpos);
575
576 /* RSN, MDIE, WPA */
577 tailpos = hostapd_eid_wpa(hapd, tailpos, tail + BEACON_TAIL_BUF_SIZE -
578 tailpos);
579
580 #ifdef CONFIG_IEEE80211N
581 tailpos = hostapd_eid_ht_capabilities(hapd, tailpos);
582 tailpos = hostapd_eid_ht_operation(hapd, tailpos);
583 #endif /* CONFIG_IEEE80211N */
584
585 tailpos = hostapd_eid_ext_capab(hapd, tailpos);
586
587 /*
588 * TODO: Time Advertisement element should only be included in some
589 * DTIM Beacon frames.
590 */
591 tailpos = hostapd_eid_time_adv(hapd, tailpos);
592
593 tailpos = hostapd_eid_interworking(hapd, tailpos);
594 tailpos = hostapd_eid_adv_proto(hapd, tailpos);
595 tailpos = hostapd_eid_roaming_consortium(hapd, tailpos);
596
597 /* Wi-Fi Alliance WMM */
598 tailpos = hostapd_eid_wmm(hapd, tailpos);
599
600 #ifdef CONFIG_WPS
601 if (hapd->conf->wps_state && hapd->wps_beacon_ie) {
602 os_memcpy(tailpos, wpabuf_head(hapd->wps_beacon_ie),
603 wpabuf_len(hapd->wps_beacon_ie));
604 tailpos += wpabuf_len(hapd->wps_beacon_ie);
605 }
606 #endif /* CONFIG_WPS */
607
608 #ifdef CONFIG_P2P
609 if ((hapd->conf->p2p & P2P_ENABLED) && hapd->p2p_beacon_ie) {
610 os_memcpy(tailpos, wpabuf_head(hapd->p2p_beacon_ie),
611 wpabuf_len(hapd->p2p_beacon_ie));
612 tailpos += wpabuf_len(hapd->p2p_beacon_ie);
613 }
614 #endif /* CONFIG_P2P */
615 #ifdef CONFIG_P2P_MANAGER
616 if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
617 P2P_MANAGE)
618 tailpos = hostapd_eid_p2p_manage(hapd, tailpos);
619 #endif /* CONFIG_P2P_MANAGER */
620
621 tail_len = tailpos > tail ? tailpos - tail : 0;
622
623 resp = hostapd_probe_resp_offloads(hapd, &resp_len);
624 #endif /* NEED_AP_MLME */
625
626 os_memset(¶ms, 0, sizeof(params));
627 params.head = (u8 *) head;
628 params.head_len = head_len;
629 params.tail = tail;
630 params.tail_len = tail_len;
631 params.proberesp = resp;
632 params.proberesp_len = resp_len;
633 params.dtim_period = hapd->conf->dtim_period;
634 params.beacon_int = hapd->iconf->beacon_int;
635 params.basic_rates = hapd->iconf->basic_rates;
636 params.ssid = (u8 *) hapd->conf->ssid.ssid;
637 params.ssid_len = hapd->conf->ssid.ssid_len;
638 params.pairwise_ciphers = hapd->conf->rsn_pairwise ?
639 hapd->conf->rsn_pairwise : hapd->conf->wpa_pairwise;
640 params.group_cipher = hapd->conf->wpa_group;
641 params.key_mgmt_suites = hapd->conf->wpa_key_mgmt;
642 params.auth_algs = hapd->conf->auth_algs;
643 params.wpa_version = hapd->conf->wpa;
644 params.privacy = hapd->conf->ssid.wep.keys_set || hapd->conf->wpa ||
645 (hapd->conf->ieee802_1x &&
646 (hapd->conf->default_wep_key_len ||
647 hapd->conf->individual_wep_key_len));
648 switch (hapd->conf->ignore_broadcast_ssid) {
649 case 0:
650 params.hide_ssid = NO_SSID_HIDING;
651 break;
652 case 1:
653 params.hide_ssid = HIDDEN_SSID_ZERO_LEN;
654 break;
655 case 2:
656 params.hide_ssid = HIDDEN_SSID_ZERO_CONTENTS;
657 break;
658 }
659 hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp);
660 params.beacon_ies = beacon;
661 params.proberesp_ies = proberesp;
662 params.assocresp_ies = assocresp;
663 params.isolate = hapd->conf->isolate;
664 #ifdef NEED_AP_MLME
665 params.cts_protect = !!(ieee802_11_erp_info(hapd) &
666 ERP_INFO_USE_PROTECTION);
667 params.preamble = hapd->iface->num_sta_no_short_preamble == 0 &&
668 hapd->iconf->preamble == SHORT_PREAMBLE;
669 if (hapd->iface->current_mode &&
670 hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G)
671 params.short_slot_time =
672 hapd->iface->num_sta_no_short_slot_time > 0 ? 0 : 1;
673 else
674 params.short_slot_time = -1;
675 if (!hapd->iconf->ieee80211n || hapd->conf->disable_11n)
676 params.ht_opmode = -1;
677 else
678 params.ht_opmode = hapd->iface->ht_op_mode;
679 #endif /* NEED_AP_MLME */
680 params.interworking = hapd->conf->interworking;
681 if (hapd->conf->interworking &&
682 !is_zero_ether_addr(hapd->conf->hessid))
683 params.hessid = hapd->conf->hessid;
684 params.access_network_type = hapd->conf->access_network_type;
685 if (hostapd_drv_set_ap(hapd, ¶ms))
686 wpa_printf(MSG_ERROR, "Failed to set beacon parameters");
687 hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
688
689 os_free(tail);
690 os_free(head);
691 os_free(resp);
692 }
693
694
ieee802_11_set_beacons(struct hostapd_iface * iface)695 void ieee802_11_set_beacons(struct hostapd_iface *iface)
696 {
697 size_t i;
698 for (i = 0; i < iface->num_bss; i++)
699 ieee802_11_set_beacon(iface->bss[i]);
700 }
701
702 #endif /* CONFIG_NATIVE_WINDOWS */
703