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) 2008-2012, Jouni Malinen <j@w1.fi>
7 * This software may be distributed under the terms of the BSD license.
8 * See README for more details.
11 #include "utils/includes.h"
13 #ifndef CONFIG_NATIVE_WINDOWS
15 #include "utils/common.h"
16 #include "common/ieee802_11_defs.h"
17 #include "common/ieee802_11_common.h"
18 #include "common/hw_features_common.h"
19 #include "wps/wps_defs.h"
22 #include "ieee802_11.h"
25 #include "ap_config.h"
27 #include "p2p_hostapd.h"
28 #include "ap_drv_ops.h"
36 static u8
* hostapd_eid_rm_enabled_capab(struct hostapd_data
*hapd
, u8
*eid
,
41 for (i
= 0; i
< RRM_CAPABILITIES_IE_LEN
; i
++) {
42 if (hapd
->conf
->radio_measurements
[i
])
46 if (i
== RRM_CAPABILITIES_IE_LEN
|| len
< 2 + RRM_CAPABILITIES_IE_LEN
)
49 *eid
++ = WLAN_EID_RRM_ENABLED_CAPABILITIES
;
50 *eid
++ = RRM_CAPABILITIES_IE_LEN
;
51 os_memcpy(eid
, hapd
->conf
->radio_measurements
, RRM_CAPABILITIES_IE_LEN
);
53 return eid
+ RRM_CAPABILITIES_IE_LEN
;
57 static u8
* hostapd_eid_bss_load(struct hostapd_data
*hapd
, u8
*eid
, size_t len
)
62 #ifdef CONFIG_TESTING_OPTIONS
63 if (hapd
->conf
->bss_load_test_set
) {
64 *eid
++ = WLAN_EID_BSS_LOAD
;
66 os_memcpy(eid
, hapd
->conf
->bss_load_test
, 5);
70 #endif /* CONFIG_TESTING_OPTIONS */
71 if (hapd
->conf
->bss_load_update_period
) {
72 *eid
++ = WLAN_EID_BSS_LOAD
;
74 WPA_PUT_LE16(eid
, hapd
->num_sta
);
76 *eid
++ = hapd
->iface
->channel_utilization
;
77 WPA_PUT_LE16(eid
, 0); /* no available admission capabity */
84 static u8
ieee802_11_erp_info(struct hostapd_data
*hapd
)
88 if (hapd
->iface
->current_mode
== NULL
||
89 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211G
)
92 if (hapd
->iface
->olbc
)
93 erp
|= ERP_INFO_USE_PROTECTION
;
94 if (hapd
->iface
->num_sta_non_erp
> 0) {
95 erp
|= ERP_INFO_NON_ERP_PRESENT
|
96 ERP_INFO_USE_PROTECTION
;
98 if (hapd
->iface
->num_sta_no_short_preamble
> 0 ||
99 hapd
->iconf
->preamble
== LONG_PREAMBLE
)
100 erp
|= ERP_INFO_BARKER_PREAMBLE_MODE
;
106 static u8
* hostapd_eid_ds_params(struct hostapd_data
*hapd
, u8
*eid
)
108 *eid
++ = WLAN_EID_DS_PARAMS
;
110 *eid
++ = hapd
->iconf
->channel
;
115 static u8
* hostapd_eid_erp_info(struct hostapd_data
*hapd
, u8
*eid
)
117 if (hapd
->iface
->current_mode
== NULL
||
118 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211G
)
121 /* Set NonERP_present and use_protection bits if there
122 * are any associated NonERP stations. */
123 /* TODO: use_protection bit can be set to zero even if
124 * there are NonERP stations present. This optimization
125 * might be useful if NonERP stations are "quiet".
126 * See 802.11g/D6 E-1 for recommended practice.
127 * In addition, Non ERP present might be set, if AP detects Non ERP
128 * operation on other APs. */
130 /* Add ERP Information element */
131 *eid
++ = WLAN_EID_ERP_INFO
;
133 *eid
++ = ieee802_11_erp_info(hapd
);
139 static u8
* hostapd_eid_pwr_constraint(struct hostapd_data
*hapd
, u8
*eid
)
142 u8 local_pwr_constraint
= 0;
145 if (hapd
->iface
->current_mode
== NULL
||
146 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
149 /* Let host drivers add this IE if DFS support is offloaded */
150 if (hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
)
154 * There is no DFS support and power constraint was not directly
155 * requested by config option.
157 if (!hapd
->iconf
->ieee80211h
&&
158 hapd
->iconf
->local_pwr_constraint
== -1)
161 /* Check if DFS is required by regulatory. */
162 dfs
= hostapd_is_dfs_required(hapd
->iface
);
164 wpa_printf(MSG_WARNING
, "Failed to check if DFS is required; ret=%d",
169 if (dfs
== 0 && hapd
->iconf
->local_pwr_constraint
== -1)
173 * ieee80211h (DFS) is enabled so Power Constraint element shall
174 * be added when running on DFS channel whenever local_pwr_constraint
175 * is configured or not. In order to meet regulations when TPC is not
176 * implemented using a transmit power that is below the legal maximum
177 * (including any mitigation factor) should help. In this case,
178 * indicate 3 dB below maximum allowed transmit power.
180 if (hapd
->iconf
->local_pwr_constraint
== -1)
181 local_pwr_constraint
= 3;
184 * A STA that is not an AP shall use a transmit power less than or
185 * equal to the local maximum transmit power level for the channel.
186 * The local maximum transmit power can be calculated from the formula:
187 * local max TX pwr = max TX pwr - local pwr constraint
188 * Where max TX pwr is maximum transmit power level specified for
189 * channel in Country element and local pwr constraint is specified
190 * for channel in this Power Constraint element.
194 *pos
++ = WLAN_EID_PWR_CONSTRAINT
;
197 /* Local Power Constraint */
198 if (local_pwr_constraint
)
199 *pos
++ = local_pwr_constraint
;
201 *pos
++ = hapd
->iconf
->local_pwr_constraint
;
207 static u8
* hostapd_eid_country_add(u8
*pos
, u8
*end
, int chan_spacing
,
208 struct hostapd_channel_data
*start
,
209 struct hostapd_channel_data
*prev
)
214 /* first channel number */
215 *pos
++ = start
->chan
;
216 /* number of channels */
217 *pos
++ = (prev
->chan
- start
->chan
) / chan_spacing
+ 1;
218 /* maximum transmit power level */
219 *pos
++ = start
->max_tx_power
;
225 static u8
* hostapd_eid_country(struct hostapd_data
*hapd
, u8
*eid
,
229 u8
*end
= eid
+ max_len
;
231 struct hostapd_hw_modes
*mode
;
232 struct hostapd_channel_data
*start
, *prev
;
233 int chan_spacing
= 1;
235 if (!hapd
->iconf
->ieee80211d
|| max_len
< 6 ||
236 hapd
->iface
->current_mode
== NULL
)
239 *pos
++ = WLAN_EID_COUNTRY
;
240 pos
++; /* length will be set later */
241 os_memcpy(pos
, hapd
->iconf
->country
, 3); /* e.g., 'US ' */
244 mode
= hapd
->iface
->current_mode
;
245 if (mode
->mode
== HOSTAPD_MODE_IEEE80211A
)
249 for (i
= 0; i
< mode
->num_channels
; i
++) {
250 struct hostapd_channel_data
*chan
= &mode
->channels
[i
];
251 if (chan
->flag
& HOSTAPD_CHAN_DISABLED
)
254 prev
->chan
+ chan_spacing
== chan
->chan
&&
255 start
->max_tx_power
== chan
->max_tx_power
) {
257 continue; /* can use same entry */
261 pos
= hostapd_eid_country_add(pos
, end
, chan_spacing
,
266 /* Start new group */
271 pos
= hostapd_eid_country_add(pos
, end
, chan_spacing
,
275 if ((pos
- eid
) & 1) {
278 *pos
++ = 0; /* pad for 16-bit alignment */
281 eid
[1] = (pos
- eid
) - 2;
287 static u8
* hostapd_eid_wpa(struct hostapd_data
*hapd
, u8
*eid
, size_t len
)
292 ie
= wpa_auth_get_wpa_ie(hapd
->wpa_auth
, &ielen
);
293 if (ie
== NULL
|| ielen
> len
)
296 os_memcpy(eid
, ie
, ielen
);
301 static u8
* hostapd_eid_csa(struct hostapd_data
*hapd
, u8
*eid
)
303 #ifdef CONFIG_TESTING_OPTIONS
304 if (hapd
->iface
->cs_oper_class
&& hapd
->iconf
->ecsa_ie_only
)
306 #endif /* CONFIG_TESTING_OPTIONS */
308 if (!hapd
->cs_freq_params
.channel
)
311 *eid
++ = WLAN_EID_CHANNEL_SWITCH
;
313 *eid
++ = hapd
->cs_block_tx
;
314 *eid
++ = hapd
->cs_freq_params
.channel
;
315 *eid
++ = hapd
->cs_count
;
321 static u8
* hostapd_eid_ecsa(struct hostapd_data
*hapd
, u8
*eid
)
323 if (!hapd
->cs_freq_params
.channel
|| !hapd
->iface
->cs_oper_class
)
326 *eid
++ = WLAN_EID_EXT_CHANSWITCH_ANN
;
328 *eid
++ = hapd
->cs_block_tx
;
329 *eid
++ = hapd
->iface
->cs_oper_class
;
330 *eid
++ = hapd
->cs_freq_params
.channel
;
331 *eid
++ = hapd
->cs_count
;
337 static u8
* hostapd_eid_supported_op_classes(struct hostapd_data
*hapd
, u8
*eid
)
339 u8 op_class
, channel
;
341 if (!(hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_AP_CSA
) ||
345 if (ieee80211_freq_to_channel_ext(hapd
->iface
->freq
,
346 hapd
->iconf
->secondary_channel
,
347 hapd
->iconf
->vht_oper_chwidth
,
348 &op_class
, &channel
) ==
352 *eid
++ = WLAN_EID_SUPPORTED_OPERATING_CLASSES
;
355 /* Current Operating Class */
358 /* TODO: Advertise all the supported operating classes */
365 static u8
* hostapd_gen_probe_resp(struct hostapd_data
*hapd
,
366 const struct ieee80211_mgmt
*req
,
367 int is_p2p
, size_t *resp_len
)
369 struct ieee80211_mgmt
*resp
;
370 u8
*pos
, *epos
, *csa_pos
;
373 #define MAX_PROBERESP_LEN 768
374 buflen
= MAX_PROBERESP_LEN
;
376 if (hapd
->wps_probe_resp_ie
)
377 buflen
+= wpabuf_len(hapd
->wps_probe_resp_ie
);
378 #endif /* CONFIG_WPS */
380 if (hapd
->p2p_probe_resp_ie
)
381 buflen
+= wpabuf_len(hapd
->p2p_probe_resp_ie
);
382 #endif /* CONFIG_P2P */
384 if (hapd
->iface
->fst_ies
)
385 buflen
+= wpabuf_len(hapd
->iface
->fst_ies
);
386 #endif /* CONFIG_FST */
387 if (hapd
->conf
->vendor_elements
)
388 buflen
+= wpabuf_len(hapd
->conf
->vendor_elements
);
389 if (hapd
->conf
->vendor_vht
) {
390 buflen
+= 5 + 2 + sizeof(struct ieee80211_vht_capabilities
) +
391 2 + sizeof(struct ieee80211_vht_operation
);
394 buflen
+= hostapd_mbo_ie_len(hapd
);
396 resp
= os_zalloc(buflen
);
400 epos
= ((u8
*) resp
) + MAX_PROBERESP_LEN
;
402 resp
->frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
403 WLAN_FC_STYPE_PROBE_RESP
);
405 os_memcpy(resp
->da
, req
->sa
, ETH_ALEN
);
406 os_memcpy(resp
->sa
, hapd
->own_addr
, ETH_ALEN
);
408 os_memcpy(resp
->bssid
, hapd
->own_addr
, ETH_ALEN
);
409 resp
->u
.probe_resp
.beacon_int
=
410 host_to_le16(hapd
->iconf
->beacon_int
);
412 /* hardware or low-level driver will setup seq_ctrl and timestamp */
413 resp
->u
.probe_resp
.capab_info
=
414 host_to_le16(hostapd_own_capab_info(hapd
));
416 pos
= resp
->u
.probe_resp
.variable
;
417 *pos
++ = WLAN_EID_SSID
;
418 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
419 os_memcpy(pos
, hapd
->conf
->ssid
.ssid
, hapd
->conf
->ssid
.ssid_len
);
420 pos
+= hapd
->conf
->ssid
.ssid_len
;
422 /* Supported rates */
423 pos
= hostapd_eid_supp_rates(hapd
, pos
);
426 pos
= hostapd_eid_ds_params(hapd
, pos
);
428 pos
= hostapd_eid_country(hapd
, pos
, epos
- pos
);
430 /* Power Constraint element */
431 pos
= hostapd_eid_pwr_constraint(hapd
, pos
);
434 csa_pos
= hostapd_eid_csa(hapd
, pos
);
436 hapd
->cs_c_off_proberesp
= csa_pos
- (u8
*) resp
- 1;
439 /* ERP Information element */
440 pos
= hostapd_eid_erp_info(hapd
, pos
);
442 /* Extended supported rates */
443 pos
= hostapd_eid_ext_supp_rates(hapd
, pos
);
446 pos
= hostapd_eid_wpa(hapd
, pos
, epos
- pos
);
448 pos
= hostapd_eid_bss_load(hapd
, pos
, epos
- pos
);
450 pos
= hostapd_eid_rm_enabled_capab(hapd
, pos
, epos
- pos
);
453 csa_pos
= hostapd_eid_ecsa(hapd
, pos
);
455 hapd
->cs_c_off_ecsa_proberesp
= csa_pos
- (u8
*) resp
- 1;
458 pos
= hostapd_eid_supported_op_classes(hapd
, pos
);
460 #ifdef CONFIG_IEEE80211N
461 /* Secondary Channel Offset element */
462 /* TODO: The standard doesn't specify a position for this element. */
463 pos
= hostapd_eid_secondary_channel(hapd
, pos
);
465 pos
= hostapd_eid_ht_capabilities(hapd
, pos
);
466 pos
= hostapd_eid_ht_operation(hapd
, pos
);
467 #endif /* CONFIG_IEEE80211N */
469 pos
= hostapd_eid_ext_capab(hapd
, pos
);
471 pos
= hostapd_eid_time_adv(hapd
, pos
);
472 pos
= hostapd_eid_time_zone(hapd
, pos
);
474 pos
= hostapd_eid_interworking(hapd
, pos
);
475 pos
= hostapd_eid_adv_proto(hapd
, pos
);
476 pos
= hostapd_eid_roaming_consortium(hapd
, pos
);
479 if (hapd
->iface
->fst_ies
) {
480 os_memcpy(pos
, wpabuf_head(hapd
->iface
->fst_ies
),
481 wpabuf_len(hapd
->iface
->fst_ies
));
482 pos
+= wpabuf_len(hapd
->iface
->fst_ies
);
484 #endif /* CONFIG_FST */
486 #ifdef CONFIG_IEEE80211AC
487 if (hapd
->iconf
->ieee80211ac
&& !hapd
->conf
->disable_11ac
) {
488 pos
= hostapd_eid_vht_capabilities(hapd
, pos
);
489 pos
= hostapd_eid_vht_operation(hapd
, pos
);
490 pos
= hostapd_eid_txpower_envelope(hapd
, pos
);
491 pos
= hostapd_eid_wb_chsw_wrapper(hapd
, pos
);
493 if (hapd
->conf
->vendor_vht
)
494 pos
= hostapd_eid_vendor_vht(hapd
, pos
);
495 #endif /* CONFIG_IEEE80211AC */
497 /* Wi-Fi Alliance WMM */
498 pos
= hostapd_eid_wmm(hapd
, pos
);
501 if (hapd
->conf
->wps_state
&& hapd
->wps_probe_resp_ie
) {
502 os_memcpy(pos
, wpabuf_head(hapd
->wps_probe_resp_ie
),
503 wpabuf_len(hapd
->wps_probe_resp_ie
));
504 pos
+= wpabuf_len(hapd
->wps_probe_resp_ie
);
506 #endif /* CONFIG_WPS */
509 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && is_p2p
&&
510 hapd
->p2p_probe_resp_ie
) {
511 os_memcpy(pos
, wpabuf_head(hapd
->p2p_probe_resp_ie
),
512 wpabuf_len(hapd
->p2p_probe_resp_ie
));
513 pos
+= wpabuf_len(hapd
->p2p_probe_resp_ie
);
515 #endif /* CONFIG_P2P */
516 #ifdef CONFIG_P2P_MANAGER
517 if ((hapd
->conf
->p2p
& (P2P_MANAGE
| P2P_ENABLED
| P2P_GROUP_OWNER
)) ==
519 pos
= hostapd_eid_p2p_manage(hapd
, pos
);
520 #endif /* CONFIG_P2P_MANAGER */
523 pos
= hostapd_eid_hs20_indication(hapd
, pos
);
524 pos
= hostapd_eid_osen(hapd
, pos
);
525 #endif /* CONFIG_HS20 */
527 pos
= hostapd_eid_mbo(hapd
, pos
, (u8
*) resp
+ buflen
- pos
);
529 if (hapd
->conf
->vendor_elements
) {
530 os_memcpy(pos
, wpabuf_head(hapd
->conf
->vendor_elements
),
531 wpabuf_len(hapd
->conf
->vendor_elements
));
532 pos
+= wpabuf_len(hapd
->conf
->vendor_elements
);
535 *resp_len
= pos
- (u8
*) resp
;
540 enum ssid_match_result
{
546 static enum ssid_match_result
ssid_match(struct hostapd_data
*hapd
,
547 const u8
*ssid
, size_t ssid_len
,
549 size_t ssid_list_len
)
556 if (ssid_len
== hapd
->conf
->ssid
.ssid_len
&&
557 os_memcmp(ssid
, hapd
->conf
->ssid
.ssid
, ssid_len
) == 0)
558 return EXACT_SSID_MATCH
;
560 if (ssid_list
== NULL
)
561 return wildcard
? WILDCARD_SSID_MATCH
: NO_SSID_MATCH
;
564 end
= ssid_list
+ ssid_list_len
;
565 while (end
- pos
>= 1) {
566 if (2 + pos
[1] > end
- pos
)
570 if (pos
[1] == hapd
->conf
->ssid
.ssid_len
&&
571 os_memcmp(pos
+ 2, hapd
->conf
->ssid
.ssid
, pos
[1]) == 0)
572 return EXACT_SSID_MATCH
;
576 return wildcard
? WILDCARD_SSID_MATCH
: NO_SSID_MATCH
;
580 void sta_track_expire(struct hostapd_iface
*iface
, int force
)
582 struct os_reltime now
;
583 struct hostapd_sta_info
*info
;
585 if (!iface
->num_sta_seen
)
588 os_get_reltime(&now
);
589 while ((info
= dl_list_first(&iface
->sta_seen
, struct hostapd_sta_info
,
592 !os_reltime_expired(&now
, &info
->last_seen
,
593 iface
->conf
->track_sta_max_age
))
597 wpa_printf(MSG_MSGDUMP
, "%s: Expire STA tracking entry for "
598 MACSTR
, iface
->bss
[0]->conf
->iface
,
599 MAC2STR(info
->addr
));
600 dl_list_del(&info
->list
);
601 iface
->num_sta_seen
--;
607 static struct hostapd_sta_info
* sta_track_get(struct hostapd_iface
*iface
,
610 struct hostapd_sta_info
*info
;
612 dl_list_for_each(info
, &iface
->sta_seen
, struct hostapd_sta_info
, list
)
613 if (os_memcmp(addr
, info
->addr
, ETH_ALEN
) == 0)
620 void sta_track_add(struct hostapd_iface
*iface
, const u8
*addr
)
622 struct hostapd_sta_info
*info
;
624 info
= sta_track_get(iface
, addr
);
626 /* Move the most recent entry to the end of the list */
627 dl_list_del(&info
->list
);
628 dl_list_add_tail(&iface
->sta_seen
, &info
->list
);
629 os_get_reltime(&info
->last_seen
);
633 /* Add a new entry */
634 info
= os_zalloc(sizeof(*info
));
635 os_memcpy(info
->addr
, addr
, ETH_ALEN
);
636 os_get_reltime(&info
->last_seen
);
638 if (iface
->num_sta_seen
>= iface
->conf
->track_sta_max_num
) {
639 /* Expire oldest entry to make room for a new one */
640 sta_track_expire(iface
, 1);
643 wpa_printf(MSG_MSGDUMP
, "%s: Add STA tracking entry for "
644 MACSTR
, iface
->bss
[0]->conf
->iface
, MAC2STR(addr
));
645 dl_list_add_tail(&iface
->sta_seen
, &info
->list
);
646 iface
->num_sta_seen
++;
650 struct hostapd_data
*
651 sta_track_seen_on(struct hostapd_iface
*iface
, const u8
*addr
,
654 struct hapd_interfaces
*interfaces
= iface
->interfaces
;
657 for (i
= 0; i
< interfaces
->count
; i
++) {
658 struct hostapd_data
*hapd
= NULL
;
660 iface
= interfaces
->iface
[i
];
661 for (j
= 0; j
< iface
->num_bss
; j
++) {
662 hapd
= iface
->bss
[j
];
663 if (os_strcmp(ifname
, hapd
->conf
->iface
) == 0)
668 if (hapd
&& sta_track_get(iface
, addr
))
676 void handle_probe_req(struct hostapd_data
*hapd
,
677 const struct ieee80211_mgmt
*mgmt
, size_t len
,
681 struct ieee802_11_elems elems
;
686 enum ssid_match_result res
;
691 if (len
< IEEE80211_HDRLEN
)
693 ie
= ((const u8
*) mgmt
) + IEEE80211_HDRLEN
;
694 if (hapd
->iconf
->track_sta_max_num
)
695 sta_track_add(hapd
->iface
, mgmt
->sa
);
696 ie_len
= len
- IEEE80211_HDRLEN
;
698 for (i
= 0; hapd
->probereq_cb
&& i
< hapd
->num_probereq_cb
; i
++)
699 if (hapd
->probereq_cb
[i
].cb(hapd
->probereq_cb
[i
].ctx
,
700 mgmt
->sa
, mgmt
->da
, mgmt
->bssid
,
701 ie
, ie_len
, ssi_signal
) > 0)
704 if (!hapd
->iconf
->send_probe_response
)
707 if (ieee802_11_parse_elems(ie
, ie_len
, &elems
, 0) == ParseFailed
) {
708 wpa_printf(MSG_DEBUG
, "Could not parse ProbeReq from " MACSTR
,
713 if ((!elems
.ssid
|| !elems
.supp_rates
)) {
714 wpa_printf(MSG_DEBUG
, "STA " MACSTR
" sent probe request "
715 "without SSID or supported rates element",
721 * No need to reply if the Probe Request frame was sent on an adjacent
722 * channel. IEEE Std 802.11-2012 describes this as a requirement for an
723 * AP with dot11RadioMeasurementActivated set to true, but strictly
724 * speaking does not allow such ignoring of Probe Request frames if
725 * dot11RadioMeasurementActivated is false. Anyway, this can help reduce
726 * number of unnecessary Probe Response frames for cases where the STA
727 * is less likely to see them (Probe Request frame sent on a
728 * neighboring, but partially overlapping, channel).
730 if (elems
.ds_params
&&
731 hapd
->iface
->current_mode
&&
732 (hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211G
||
733 hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211B
) &&
734 hapd
->iconf
->channel
!= elems
.ds_params
[0]) {
735 wpa_printf(MSG_DEBUG
,
736 "Ignore Probe Request due to DS Params mismatch: chan=%u != ds.chan=%u",
737 hapd
->iconf
->channel
, elems
.ds_params
[0]);
742 if (hapd
->p2p
&& hapd
->p2p_group
&& elems
.wps_ie
) {
744 wps
= ieee802_11_vendor_ie_concat(ie
, ie_len
, WPS_DEV_OUI_WFA
);
745 if (wps
&& !p2p_group_match_dev_type(hapd
->p2p_group
, wps
)) {
746 wpa_printf(MSG_MSGDUMP
, "P2P: Ignore Probe Request "
747 "due to mismatch with Requested Device "
755 if (hapd
->p2p
&& hapd
->p2p_group
&& elems
.p2p
) {
757 p2p
= ieee802_11_vendor_ie_concat(ie
, ie_len
, P2P_IE_VENDOR_TYPE
);
758 if (p2p
&& !p2p_group_match_dev_id(hapd
->p2p_group
, p2p
)) {
759 wpa_printf(MSG_MSGDUMP
, "P2P: Ignore Probe Request "
760 "due to mismatch with Device ID");
766 #endif /* CONFIG_P2P */
768 if (hapd
->conf
->ignore_broadcast_ssid
&& elems
.ssid_len
== 0 &&
769 elems
.ssid_list_len
== 0) {
770 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
" for "
771 "broadcast SSID ignored", MAC2STR(mgmt
->sa
));
776 if ((hapd
->conf
->p2p
& P2P_GROUP_OWNER
) &&
777 elems
.ssid_len
== P2P_WILDCARD_SSID_LEN
&&
778 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
,
779 P2P_WILDCARD_SSID_LEN
) == 0) {
780 /* Process P2P Wildcard SSID like Wildcard SSID */
783 #endif /* CONFIG_P2P */
785 res
= ssid_match(hapd
, elems
.ssid
, elems
.ssid_len
,
786 elems
.ssid_list
, elems
.ssid_list_len
);
787 if (res
== NO_SSID_MATCH
) {
788 if (!(mgmt
->da
[0] & 0x01)) {
789 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
790 " for foreign SSID '%s' (DA " MACSTR
")%s",
792 wpa_ssid_txt(elems
.ssid
, elems
.ssid_len
),
794 elems
.ssid_list
? " (SSID list)" : "");
799 #ifdef CONFIG_INTERWORKING
800 if (hapd
->conf
->interworking
&&
801 elems
.interworking
&& elems
.interworking_len
>= 1) {
802 u8 ant
= elems
.interworking
[0] & 0x0f;
803 if (ant
!= INTERWORKING_ANT_WILDCARD
&&
804 ant
!= hapd
->conf
->access_network_type
) {
805 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
806 " for mismatching ANT %u ignored",
807 MAC2STR(mgmt
->sa
), ant
);
812 if (hapd
->conf
->interworking
&& elems
.interworking
&&
813 (elems
.interworking_len
== 7 || elems
.interworking_len
== 9)) {
815 if (elems
.interworking_len
== 7)
816 hessid
= elems
.interworking
+ 1;
818 hessid
= elems
.interworking
+ 1 + 2;
819 if (!is_broadcast_ether_addr(hessid
) &&
820 os_memcmp(hessid
, hapd
->conf
->hessid
, ETH_ALEN
) != 0) {
821 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
822 " for mismatching HESSID " MACSTR
824 MAC2STR(mgmt
->sa
), MAC2STR(hessid
));
828 #endif /* CONFIG_INTERWORKING */
831 if ((hapd
->conf
->p2p
& P2P_GROUP_OWNER
) &&
832 supp_rates_11b_only(&elems
)) {
833 /* Indicates support for 11b rates only */
834 wpa_printf(MSG_EXCESSIVE
, "P2P: Ignore Probe Request from "
835 MACSTR
" with only 802.11b rates",
839 #endif /* CONFIG_P2P */
841 /* TODO: verify that supp_rates contains at least one matching rate
842 * with AP configuration */
844 if (hapd
->conf
->no_probe_resp_if_seen_on
&&
845 is_multicast_ether_addr(mgmt
->da
) &&
846 is_multicast_ether_addr(mgmt
->bssid
) &&
847 sta_track_seen_on(hapd
->iface
, mgmt
->sa
,
848 hapd
->conf
->no_probe_resp_if_seen_on
)) {
849 wpa_printf(MSG_MSGDUMP
, "%s: Ignore Probe Request from " MACSTR
850 " since STA has been seen on %s",
851 hapd
->conf
->iface
, MAC2STR(mgmt
->sa
),
852 hapd
->conf
->no_probe_resp_if_seen_on
);
856 if (hapd
->conf
->no_probe_resp_if_max_sta
&&
857 is_multicast_ether_addr(mgmt
->da
) &&
858 is_multicast_ether_addr(mgmt
->bssid
) &&
859 hapd
->num_sta
>= hapd
->conf
->max_num_sta
&&
860 !ap_get_sta(hapd
, mgmt
->sa
)) {
861 wpa_printf(MSG_MSGDUMP
, "%s: Ignore Probe Request from " MACSTR
862 " since no room for additional STA",
863 hapd
->conf
->iface
, MAC2STR(mgmt
->sa
));
867 #ifdef CONFIG_TESTING_OPTIONS
868 if (hapd
->iconf
->ignore_probe_probability
> 0.0 &&
869 drand48() < hapd
->iconf
->ignore_probe_probability
) {
871 "TESTING: ignoring probe request from " MACSTR
,
875 #endif /* CONFIG_TESTING_OPTIONS */
877 resp
= hostapd_gen_probe_resp(hapd
, mgmt
, elems
.p2p
!= NULL
,
883 * If this is a broadcast probe request, apply no ack policy to avoid
886 noack
= !!(res
== WILDCARD_SSID_MATCH
&&
887 is_broadcast_ether_addr(mgmt
->da
));
890 if (hapd
->csa_in_progress
) {
891 if (hapd
->cs_c_off_proberesp
)
892 csa_offs
[csa_offs_len
++] =
893 hapd
->cs_c_off_proberesp
;
895 if (hapd
->cs_c_off_ecsa_proberesp
)
896 csa_offs
[csa_offs_len
++] =
897 hapd
->cs_c_off_ecsa_proberesp
;
900 ret
= hostapd_drv_send_mlme_csa(hapd
, resp
, resp_len
, noack
,
901 csa_offs_len
? csa_offs
: NULL
,
905 wpa_printf(MSG_INFO
, "handle_probe_req: send failed");
909 wpa_printf(MSG_EXCESSIVE
, "STA " MACSTR
" sent probe request for %s "
910 "SSID", MAC2STR(mgmt
->sa
),
911 elems
.ssid_len
== 0 ? "broadcast" : "our");
915 static u8
* hostapd_probe_resp_offloads(struct hostapd_data
*hapd
,
918 /* check probe response offloading caps and print warnings */
919 if (!(hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD
))
923 if (hapd
->conf
->wps_state
&& hapd
->wps_probe_resp_ie
&&
924 (!(hapd
->iface
->probe_resp_offloads
&
925 (WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS
|
926 WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2
))))
927 wpa_printf(MSG_WARNING
, "Device is trying to offload WPS "
928 "Probe Response while not supporting this");
929 #endif /* CONFIG_WPS */
932 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && hapd
->p2p_probe_resp_ie
&&
933 !(hapd
->iface
->probe_resp_offloads
&
934 WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P
))
935 wpa_printf(MSG_WARNING
, "Device is trying to offload P2P "
936 "Probe Response while not supporting this");
937 #endif /* CONFIG_P2P */
939 if (hapd
->conf
->interworking
&&
940 !(hapd
->iface
->probe_resp_offloads
&
941 WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING
))
942 wpa_printf(MSG_WARNING
, "Device is trying to offload "
943 "Interworking Probe Response while not supporting "
946 /* Generate a Probe Response template for the non-P2P case */
947 return hostapd_gen_probe_resp(hapd
, NULL
, 0, resp_len
);
950 #endif /* NEED_AP_MLME */
953 int ieee802_11_build_ap_params(struct hostapd_data
*hapd
,
954 struct wpa_driver_ap_params
*params
)
956 struct ieee80211_mgmt
*head
= NULL
;
958 size_t head_len
= 0, tail_len
= 0;
963 u8
*pos
, *tailpos
, *csa_pos
;
965 #define BEACON_HEAD_BUF_SIZE 256
966 #define BEACON_TAIL_BUF_SIZE 512
967 head
= os_zalloc(BEACON_HEAD_BUF_SIZE
);
968 tail_len
= BEACON_TAIL_BUF_SIZE
;
970 if (hapd
->conf
->wps_state
&& hapd
->wps_beacon_ie
)
971 tail_len
+= wpabuf_len(hapd
->wps_beacon_ie
);
972 #endif /* CONFIG_WPS */
974 if (hapd
->p2p_beacon_ie
)
975 tail_len
+= wpabuf_len(hapd
->p2p_beacon_ie
);
976 #endif /* CONFIG_P2P */
978 if (hapd
->iface
->fst_ies
)
979 tail_len
+= wpabuf_len(hapd
->iface
->fst_ies
);
980 #endif /* CONFIG_FST */
981 if (hapd
->conf
->vendor_elements
)
982 tail_len
+= wpabuf_len(hapd
->conf
->vendor_elements
);
984 #ifdef CONFIG_IEEE80211AC
985 if (hapd
->conf
->vendor_vht
) {
986 tail_len
+= 5 + 2 + sizeof(struct ieee80211_vht_capabilities
) +
987 2 + sizeof(struct ieee80211_vht_operation
);
989 #endif /* CONFIG_IEEE80211AC */
991 tail_len
+= hostapd_mbo_ie_len(hapd
);
993 tailpos
= tail
= os_malloc(tail_len
);
994 if (head
== NULL
|| tail
== NULL
) {
995 wpa_printf(MSG_ERROR
, "Failed to set beacon data");
1001 head
->frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
1002 WLAN_FC_STYPE_BEACON
);
1003 head
->duration
= host_to_le16(0);
1004 os_memset(head
->da
, 0xff, ETH_ALEN
);
1006 os_memcpy(head
->sa
, hapd
->own_addr
, ETH_ALEN
);
1007 os_memcpy(head
->bssid
, hapd
->own_addr
, ETH_ALEN
);
1008 head
->u
.beacon
.beacon_int
=
1009 host_to_le16(hapd
->iconf
->beacon_int
);
1011 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1012 capab_info
= hostapd_own_capab_info(hapd
);
1013 head
->u
.beacon
.capab_info
= host_to_le16(capab_info
);
1014 pos
= &head
->u
.beacon
.variable
[0];
1017 *pos
++ = WLAN_EID_SSID
;
1018 if (hapd
->conf
->ignore_broadcast_ssid
== 2) {
1019 /* clear the data, but keep the correct length of the SSID */
1020 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
1021 os_memset(pos
, 0, hapd
->conf
->ssid
.ssid_len
);
1022 pos
+= hapd
->conf
->ssid
.ssid_len
;
1023 } else if (hapd
->conf
->ignore_broadcast_ssid
) {
1024 *pos
++ = 0; /* empty SSID */
1026 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
1027 os_memcpy(pos
, hapd
->conf
->ssid
.ssid
,
1028 hapd
->conf
->ssid
.ssid_len
);
1029 pos
+= hapd
->conf
->ssid
.ssid_len
;
1032 /* Supported rates */
1033 pos
= hostapd_eid_supp_rates(hapd
, pos
);
1036 pos
= hostapd_eid_ds_params(hapd
, pos
);
1038 head_len
= pos
- (u8
*) head
;
1040 tailpos
= hostapd_eid_country(hapd
, tailpos
,
1041 tail
+ BEACON_TAIL_BUF_SIZE
- tailpos
);
1043 /* Power Constraint element */
1044 tailpos
= hostapd_eid_pwr_constraint(hapd
, tailpos
);
1047 csa_pos
= hostapd_eid_csa(hapd
, tailpos
);
1048 if (csa_pos
!= tailpos
)
1049 hapd
->cs_c_off_beacon
= csa_pos
- tail
- 1;
1052 /* ERP Information element */
1053 tailpos
= hostapd_eid_erp_info(hapd
, tailpos
);
1055 /* Extended supported rates */
1056 tailpos
= hostapd_eid_ext_supp_rates(hapd
, tailpos
);
1058 /* RSN, MDIE, WPA */
1059 tailpos
= hostapd_eid_wpa(hapd
, tailpos
, tail
+ BEACON_TAIL_BUF_SIZE
-
1062 tailpos
= hostapd_eid_rm_enabled_capab(hapd
, tailpos
,
1063 tail
+ BEACON_TAIL_BUF_SIZE
-
1066 tailpos
= hostapd_eid_bss_load(hapd
, tailpos
,
1067 tail
+ BEACON_TAIL_BUF_SIZE
- tailpos
);
1070 csa_pos
= hostapd_eid_ecsa(hapd
, tailpos
);
1071 if (csa_pos
!= tailpos
)
1072 hapd
->cs_c_off_ecsa_beacon
= csa_pos
- tail
- 1;
1075 tailpos
= hostapd_eid_supported_op_classes(hapd
, tailpos
);
1077 #ifdef CONFIG_IEEE80211N
1078 /* Secondary Channel Offset element */
1079 /* TODO: The standard doesn't specify a position for this element. */
1080 tailpos
= hostapd_eid_secondary_channel(hapd
, tailpos
);
1082 tailpos
= hostapd_eid_ht_capabilities(hapd
, tailpos
);
1083 tailpos
= hostapd_eid_ht_operation(hapd
, tailpos
);
1084 #endif /* CONFIG_IEEE80211N */
1086 tailpos
= hostapd_eid_ext_capab(hapd
, tailpos
);
1089 * TODO: Time Advertisement element should only be included in some
1090 * DTIM Beacon frames.
1092 tailpos
= hostapd_eid_time_adv(hapd
, tailpos
);
1094 tailpos
= hostapd_eid_interworking(hapd
, tailpos
);
1095 tailpos
= hostapd_eid_adv_proto(hapd
, tailpos
);
1096 tailpos
= hostapd_eid_roaming_consortium(hapd
, tailpos
);
1099 if (hapd
->iface
->fst_ies
) {
1100 os_memcpy(tailpos
, wpabuf_head(hapd
->iface
->fst_ies
),
1101 wpabuf_len(hapd
->iface
->fst_ies
));
1102 tailpos
+= wpabuf_len(hapd
->iface
->fst_ies
);
1104 #endif /* CONFIG_FST */
1106 #ifdef CONFIG_IEEE80211AC
1107 if (hapd
->iconf
->ieee80211ac
&& !hapd
->conf
->disable_11ac
) {
1108 tailpos
= hostapd_eid_vht_capabilities(hapd
, tailpos
);
1109 tailpos
= hostapd_eid_vht_operation(hapd
, tailpos
);
1110 tailpos
= hostapd_eid_txpower_envelope(hapd
, tailpos
);
1111 tailpos
= hostapd_eid_wb_chsw_wrapper(hapd
, tailpos
);
1113 if (hapd
->conf
->vendor_vht
)
1114 tailpos
= hostapd_eid_vendor_vht(hapd
, tailpos
);
1115 #endif /* CONFIG_IEEE80211AC */
1117 /* Wi-Fi Alliance WMM */
1118 tailpos
= hostapd_eid_wmm(hapd
, tailpos
);
1121 if (hapd
->conf
->wps_state
&& hapd
->wps_beacon_ie
) {
1122 os_memcpy(tailpos
, wpabuf_head(hapd
->wps_beacon_ie
),
1123 wpabuf_len(hapd
->wps_beacon_ie
));
1124 tailpos
+= wpabuf_len(hapd
->wps_beacon_ie
);
1126 #endif /* CONFIG_WPS */
1129 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && hapd
->p2p_beacon_ie
) {
1130 os_memcpy(tailpos
, wpabuf_head(hapd
->p2p_beacon_ie
),
1131 wpabuf_len(hapd
->p2p_beacon_ie
));
1132 tailpos
+= wpabuf_len(hapd
->p2p_beacon_ie
);
1134 #endif /* CONFIG_P2P */
1135 #ifdef CONFIG_P2P_MANAGER
1136 if ((hapd
->conf
->p2p
& (P2P_MANAGE
| P2P_ENABLED
| P2P_GROUP_OWNER
)) ==
1138 tailpos
= hostapd_eid_p2p_manage(hapd
, tailpos
);
1139 #endif /* CONFIG_P2P_MANAGER */
1142 tailpos
= hostapd_eid_hs20_indication(hapd
, tailpos
);
1143 tailpos
= hostapd_eid_osen(hapd
, tailpos
);
1144 #endif /* CONFIG_HS20 */
1146 tailpos
= hostapd_eid_mbo(hapd
, tailpos
, tail
+ tail_len
- tailpos
);
1148 if (hapd
->conf
->vendor_elements
) {
1149 os_memcpy(tailpos
, wpabuf_head(hapd
->conf
->vendor_elements
),
1150 wpabuf_len(hapd
->conf
->vendor_elements
));
1151 tailpos
+= wpabuf_len(hapd
->conf
->vendor_elements
);
1154 tail_len
= tailpos
> tail
? tailpos
- tail
: 0;
1156 resp
= hostapd_probe_resp_offloads(hapd
, &resp_len
);
1157 #endif /* NEED_AP_MLME */
1159 os_memset(params
, 0, sizeof(*params
));
1160 params
->head
= (u8
*) head
;
1161 params
->head_len
= head_len
;
1162 params
->tail
= tail
;
1163 params
->tail_len
= tail_len
;
1164 params
->proberesp
= resp
;
1165 params
->proberesp_len
= resp_len
;
1166 params
->dtim_period
= hapd
->conf
->dtim_period
;
1167 params
->beacon_int
= hapd
->iconf
->beacon_int
;
1168 params
->basic_rates
= hapd
->iface
->basic_rates
;
1169 params
->ssid
= hapd
->conf
->ssid
.ssid
;
1170 params
->ssid_len
= hapd
->conf
->ssid
.ssid_len
;
1171 if ((hapd
->conf
->wpa
& (WPA_PROTO_WPA
| WPA_PROTO_RSN
)) ==
1172 (WPA_PROTO_WPA
| WPA_PROTO_RSN
))
1173 params
->pairwise_ciphers
= hapd
->conf
->wpa_pairwise
|
1174 hapd
->conf
->rsn_pairwise
;
1175 else if (hapd
->conf
->wpa
& WPA_PROTO_RSN
)
1176 params
->pairwise_ciphers
= hapd
->conf
->rsn_pairwise
;
1177 else if (hapd
->conf
->wpa
& WPA_PROTO_WPA
)
1178 params
->pairwise_ciphers
= hapd
->conf
->wpa_pairwise
;
1179 params
->group_cipher
= hapd
->conf
->wpa_group
;
1180 params
->key_mgmt_suites
= hapd
->conf
->wpa_key_mgmt
;
1181 params
->auth_algs
= hapd
->conf
->auth_algs
;
1182 params
->wpa_version
= hapd
->conf
->wpa
;
1183 params
->privacy
= hapd
->conf
->ssid
.wep
.keys_set
|| hapd
->conf
->wpa
||
1184 (hapd
->conf
->ieee802_1x
&&
1185 (hapd
->conf
->default_wep_key_len
||
1186 hapd
->conf
->individual_wep_key_len
));
1187 switch (hapd
->conf
->ignore_broadcast_ssid
) {
1189 params
->hide_ssid
= NO_SSID_HIDING
;
1192 params
->hide_ssid
= HIDDEN_SSID_ZERO_LEN
;
1195 params
->hide_ssid
= HIDDEN_SSID_ZERO_CONTENTS
;
1198 params
->isolate
= hapd
->conf
->isolate
;
1199 params
->smps_mode
= hapd
->iconf
->ht_capab
& HT_CAP_INFO_SMPS_MASK
;
1201 params
->cts_protect
= !!(ieee802_11_erp_info(hapd
) &
1202 ERP_INFO_USE_PROTECTION
);
1203 params
->preamble
= hapd
->iface
->num_sta_no_short_preamble
== 0 &&
1204 hapd
->iconf
->preamble
== SHORT_PREAMBLE
;
1205 if (hapd
->iface
->current_mode
&&
1206 hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211G
)
1207 params
->short_slot_time
=
1208 hapd
->iface
->num_sta_no_short_slot_time
> 0 ? 0 : 1;
1210 params
->short_slot_time
= -1;
1211 if (!hapd
->iconf
->ieee80211n
|| hapd
->conf
->disable_11n
)
1212 params
->ht_opmode
= -1;
1214 params
->ht_opmode
= hapd
->iface
->ht_op_mode
;
1215 #endif /* NEED_AP_MLME */
1216 params
->interworking
= hapd
->conf
->interworking
;
1217 if (hapd
->conf
->interworking
&&
1218 !is_zero_ether_addr(hapd
->conf
->hessid
))
1219 params
->hessid
= hapd
->conf
->hessid
;
1220 params
->access_network_type
= hapd
->conf
->access_network_type
;
1221 params
->ap_max_inactivity
= hapd
->conf
->ap_max_inactivity
;
1223 params
->p2p_go_ctwindow
= hapd
->iconf
->p2p_go_ctwindow
;
1224 #endif /* CONFIG_P2P */
1226 params
->disable_dgaf
= hapd
->conf
->disable_dgaf
;
1227 if (hapd
->conf
->osen
) {
1228 params
->privacy
= 1;
1231 #endif /* CONFIG_HS20 */
1232 params
->pbss
= hapd
->conf
->pbss
;
1237 void ieee802_11_free_ap_params(struct wpa_driver_ap_params
*params
)
1239 os_free(params
->tail
);
1240 params
->tail
= NULL
;
1241 os_free(params
->head
);
1242 params
->head
= NULL
;
1243 os_free(params
->proberesp
);
1244 params
->proberesp
= NULL
;
1248 int ieee802_11_set_beacon(struct hostapd_data
*hapd
)
1250 struct wpa_driver_ap_params params
;
1251 struct hostapd_freq_params freq
;
1252 struct hostapd_iface
*iface
= hapd
->iface
;
1253 struct hostapd_config
*iconf
= iface
->conf
;
1254 struct wpabuf
*beacon
, *proberesp
, *assocresp
;
1257 if (hapd
->csa_in_progress
) {
1258 wpa_printf(MSG_ERROR
, "Cannot set beacons during CSA period");
1262 hapd
->beacon_set_done
= 1;
1264 if (ieee802_11_build_ap_params(hapd
, ¶ms
) < 0)
1267 if (hostapd_build_ap_extra_ies(hapd
, &beacon
, &proberesp
, &assocresp
) <
1271 params
.beacon_ies
= beacon
;
1272 params
.proberesp_ies
= proberesp
;
1273 params
.assocresp_ies
= assocresp
;
1274 params
.reenable
= hapd
->reenable_beacon
;
1275 hapd
->reenable_beacon
= 0;
1277 if (iface
->current_mode
&&
1278 hostapd_set_freq_params(&freq
, iconf
->hw_mode
, iface
->freq
,
1279 iconf
->channel
, iconf
->ieee80211n
,
1281 iconf
->secondary_channel
,
1282 iconf
->vht_oper_chwidth
,
1283 iconf
->vht_oper_centr_freq_seg0_idx
,
1284 iconf
->vht_oper_centr_freq_seg1_idx
,
1285 iface
->current_mode
->vht_capab
) == 0)
1286 params
.freq
= &freq
;
1288 res
= hostapd_drv_set_ap(hapd
, ¶ms
);
1289 hostapd_free_ap_extra_ies(hapd
, beacon
, proberesp
, assocresp
);
1291 wpa_printf(MSG_ERROR
, "Failed to set beacon parameters");
1295 ieee802_11_free_ap_params(¶ms
);
1300 int ieee802_11_set_beacons(struct hostapd_iface
*iface
)
1305 for (i
= 0; i
< iface
->num_bss
; i
++) {
1306 if (iface
->bss
[i
]->started
&&
1307 ieee802_11_set_beacon(iface
->bss
[i
]) < 0)
1315 /* only update beacons if started */
1316 int ieee802_11_update_beacons(struct hostapd_iface
*iface
)
1321 for (i
= 0; i
< iface
->num_bss
; i
++) {
1322 if (iface
->bss
[i
]->beacon_set_done
&& iface
->bss
[i
]->started
&&
1323 ieee802_11_set_beacon(iface
->bss
[i
]) < 0)
1330 #endif /* CONFIG_NATIVE_WINDOWS */