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"
37 static u8
* hostapd_eid_rm_enabled_capab(struct hostapd_data
*hapd
, u8
*eid
,
42 for (i
= 0; i
< RRM_CAPABILITIES_IE_LEN
; i
++) {
43 if (hapd
->conf
->radio_measurements
[i
])
47 if (i
== RRM_CAPABILITIES_IE_LEN
|| len
< 2 + RRM_CAPABILITIES_IE_LEN
)
50 *eid
++ = WLAN_EID_RRM_ENABLED_CAPABILITIES
;
51 *eid
++ = RRM_CAPABILITIES_IE_LEN
;
52 os_memcpy(eid
, hapd
->conf
->radio_measurements
, RRM_CAPABILITIES_IE_LEN
);
54 return eid
+ RRM_CAPABILITIES_IE_LEN
;
58 static u8
* hostapd_eid_bss_load(struct hostapd_data
*hapd
, u8
*eid
, size_t len
)
63 #ifdef CONFIG_TESTING_OPTIONS
64 if (hapd
->conf
->bss_load_test_set
) {
65 *eid
++ = WLAN_EID_BSS_LOAD
;
67 os_memcpy(eid
, hapd
->conf
->bss_load_test
, 5);
71 #endif /* CONFIG_TESTING_OPTIONS */
72 if (hapd
->conf
->bss_load_update_period
) {
73 *eid
++ = WLAN_EID_BSS_LOAD
;
75 WPA_PUT_LE16(eid
, hapd
->num_sta
);
77 *eid
++ = hapd
->iface
->channel_utilization
;
78 WPA_PUT_LE16(eid
, 0); /* no available admission capabity */
85 static u8
ieee802_11_erp_info(struct hostapd_data
*hapd
)
89 if (hapd
->iface
->current_mode
== NULL
||
90 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211G
)
93 if (hapd
->iface
->olbc
)
94 erp
|= ERP_INFO_USE_PROTECTION
;
95 if (hapd
->iface
->num_sta_non_erp
> 0) {
96 erp
|= ERP_INFO_NON_ERP_PRESENT
|
97 ERP_INFO_USE_PROTECTION
;
99 if (hapd
->iface
->num_sta_no_short_preamble
> 0 ||
100 hapd
->iconf
->preamble
== LONG_PREAMBLE
)
101 erp
|= ERP_INFO_BARKER_PREAMBLE_MODE
;
107 static u8
* hostapd_eid_ds_params(struct hostapd_data
*hapd
, u8
*eid
)
109 *eid
++ = WLAN_EID_DS_PARAMS
;
111 *eid
++ = hapd
->iconf
->channel
;
116 static u8
* hostapd_eid_erp_info(struct hostapd_data
*hapd
, u8
*eid
)
118 if (hapd
->iface
->current_mode
== NULL
||
119 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211G
)
122 /* Set NonERP_present and use_protection bits if there
123 * are any associated NonERP stations. */
124 /* TODO: use_protection bit can be set to zero even if
125 * there are NonERP stations present. This optimization
126 * might be useful if NonERP stations are "quiet".
127 * See 802.11g/D6 E-1 for recommended practice.
128 * In addition, Non ERP present might be set, if AP detects Non ERP
129 * operation on other APs. */
131 /* Add ERP Information element */
132 *eid
++ = WLAN_EID_ERP_INFO
;
134 *eid
++ = ieee802_11_erp_info(hapd
);
140 static u8
* hostapd_eid_pwr_constraint(struct hostapd_data
*hapd
, u8
*eid
)
143 u8 local_pwr_constraint
= 0;
146 if (hapd
->iface
->current_mode
== NULL
||
147 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
150 /* Let host drivers add this IE if DFS support is offloaded */
151 if (hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
)
155 * There is no DFS support and power constraint was not directly
156 * requested by config option.
158 if (!hapd
->iconf
->ieee80211h
&&
159 hapd
->iconf
->local_pwr_constraint
== -1)
162 /* Check if DFS is required by regulatory. */
163 dfs
= hostapd_is_dfs_required(hapd
->iface
);
165 wpa_printf(MSG_WARNING
, "Failed to check if DFS is required; ret=%d",
170 if (dfs
== 0 && hapd
->iconf
->local_pwr_constraint
== -1)
174 * ieee80211h (DFS) is enabled so Power Constraint element shall
175 * be added when running on DFS channel whenever local_pwr_constraint
176 * is configured or not. In order to meet regulations when TPC is not
177 * implemented using a transmit power that is below the legal maximum
178 * (including any mitigation factor) should help. In this case,
179 * indicate 3 dB below maximum allowed transmit power.
181 if (hapd
->iconf
->local_pwr_constraint
== -1)
182 local_pwr_constraint
= 3;
185 * A STA that is not an AP shall use a transmit power less than or
186 * equal to the local maximum transmit power level for the channel.
187 * The local maximum transmit power can be calculated from the formula:
188 * local max TX pwr = max TX pwr - local pwr constraint
189 * Where max TX pwr is maximum transmit power level specified for
190 * channel in Country element and local pwr constraint is specified
191 * for channel in this Power Constraint element.
195 *pos
++ = WLAN_EID_PWR_CONSTRAINT
;
198 /* Local Power Constraint */
199 if (local_pwr_constraint
)
200 *pos
++ = local_pwr_constraint
;
202 *pos
++ = hapd
->iconf
->local_pwr_constraint
;
208 static u8
* hostapd_eid_country_add(u8
*pos
, u8
*end
, int chan_spacing
,
209 struct hostapd_channel_data
*start
,
210 struct hostapd_channel_data
*prev
)
215 /* first channel number */
216 *pos
++ = start
->chan
;
217 /* number of channels */
218 *pos
++ = (prev
->chan
- start
->chan
) / chan_spacing
+ 1;
219 /* maximum transmit power level */
220 *pos
++ = start
->max_tx_power
;
226 static u8
* hostapd_eid_country(struct hostapd_data
*hapd
, u8
*eid
,
230 u8
*end
= eid
+ max_len
;
232 struct hostapd_hw_modes
*mode
;
233 struct hostapd_channel_data
*start
, *prev
;
234 int chan_spacing
= 1;
236 if (!hapd
->iconf
->ieee80211d
|| max_len
< 6 ||
237 hapd
->iface
->current_mode
== NULL
)
240 *pos
++ = WLAN_EID_COUNTRY
;
241 pos
++; /* length will be set later */
242 os_memcpy(pos
, hapd
->iconf
->country
, 3); /* e.g., 'US ' */
245 mode
= hapd
->iface
->current_mode
;
246 if (mode
->mode
== HOSTAPD_MODE_IEEE80211A
)
250 for (i
= 0; i
< mode
->num_channels
; i
++) {
251 struct hostapd_channel_data
*chan
= &mode
->channels
[i
];
252 if (chan
->flag
& HOSTAPD_CHAN_DISABLED
)
255 prev
->chan
+ chan_spacing
== chan
->chan
&&
256 start
->max_tx_power
== chan
->max_tx_power
) {
258 continue; /* can use same entry */
262 pos
= hostapd_eid_country_add(pos
, end
, chan_spacing
,
267 /* Start new group */
272 pos
= hostapd_eid_country_add(pos
, end
, chan_spacing
,
276 if ((pos
- eid
) & 1) {
279 *pos
++ = 0; /* pad for 16-bit alignment */
282 eid
[1] = (pos
- eid
) - 2;
288 static u8
* hostapd_eid_wpa(struct hostapd_data
*hapd
, u8
*eid
, size_t len
)
293 ie
= wpa_auth_get_wpa_ie(hapd
->wpa_auth
, &ielen
);
294 if (ie
== NULL
|| ielen
> len
)
297 os_memcpy(eid
, ie
, ielen
);
302 static u8
* hostapd_eid_csa(struct hostapd_data
*hapd
, u8
*eid
)
304 #ifdef CONFIG_TESTING_OPTIONS
305 if (hapd
->iface
->cs_oper_class
&& hapd
->iconf
->ecsa_ie_only
)
307 #endif /* CONFIG_TESTING_OPTIONS */
309 if (!hapd
->cs_freq_params
.channel
)
312 *eid
++ = WLAN_EID_CHANNEL_SWITCH
;
314 *eid
++ = hapd
->cs_block_tx
;
315 *eid
++ = hapd
->cs_freq_params
.channel
;
316 *eid
++ = hapd
->cs_count
;
322 static u8
* hostapd_eid_ecsa(struct hostapd_data
*hapd
, u8
*eid
)
324 if (!hapd
->cs_freq_params
.channel
|| !hapd
->iface
->cs_oper_class
)
327 *eid
++ = WLAN_EID_EXT_CHANSWITCH_ANN
;
329 *eid
++ = hapd
->cs_block_tx
;
330 *eid
++ = hapd
->iface
->cs_oper_class
;
331 *eid
++ = hapd
->cs_freq_params
.channel
;
332 *eid
++ = hapd
->cs_count
;
338 static u8
* hostapd_eid_supported_op_classes(struct hostapd_data
*hapd
, u8
*eid
)
340 u8 op_class
, channel
;
342 if (!(hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_AP_CSA
) ||
346 if (ieee80211_freq_to_channel_ext(hapd
->iface
->freq
,
347 hapd
->iconf
->secondary_channel
,
348 hapd
->iconf
->vht_oper_chwidth
,
349 &op_class
, &channel
) ==
353 *eid
++ = WLAN_EID_SUPPORTED_OPERATING_CLASSES
;
356 /* Current Operating Class */
359 /* TODO: Advertise all the supported operating classes */
367 static int hostapd_eid_owe_trans_enabled(struct hostapd_data
*hapd
)
369 return hapd
->conf
->owe_transition_ssid_len
> 0 &&
370 !is_zero_ether_addr(hapd
->conf
->owe_transition_bssid
);
372 #endif /* CONFIG_OWE */
375 static size_t hostapd_eid_owe_trans_len(struct hostapd_data
*hapd
)
378 if (!hostapd_eid_owe_trans_enabled(hapd
))
380 return 6 + ETH_ALEN
+ 1 + hapd
->conf
->owe_transition_ssid_len
;
381 #else /* CONFIG_OWE */
383 #endif /* CONFIG_OWE */
387 static u8
* hostapd_eid_owe_trans(struct hostapd_data
*hapd
, u8
*eid
,
394 if (hapd
->conf
->owe_transition_ifname
[0] &&
395 !hostapd_eid_owe_trans_enabled(hapd
))
396 hostapd_owe_trans_get_info(hapd
);
398 if (!hostapd_eid_owe_trans_enabled(hapd
))
401 elen
= hostapd_eid_owe_trans_len(hapd
);
403 wpa_printf(MSG_DEBUG
,
404 "OWE: Not enough room in the buffer for OWE IE");
408 *pos
++ = WLAN_EID_VENDOR_SPECIFIC
;
410 WPA_PUT_BE24(pos
, OUI_WFA
);
412 *pos
++ = OWE_OUI_TYPE
;
413 os_memcpy(pos
, hapd
->conf
->owe_transition_bssid
, ETH_ALEN
);
415 *pos
++ = hapd
->conf
->owe_transition_ssid_len
;
416 os_memcpy(pos
, hapd
->conf
->owe_transition_ssid
,
417 hapd
->conf
->owe_transition_ssid_len
);
418 pos
+= hapd
->conf
->owe_transition_ssid_len
;
421 #else /* CONFIG_OWE */
423 #endif /* CONFIG_OWE */
427 static u8
* hostapd_gen_probe_resp(struct hostapd_data
*hapd
,
428 const struct ieee80211_mgmt
*req
,
429 int is_p2p
, size_t *resp_len
)
431 struct ieee80211_mgmt
*resp
;
432 u8
*pos
, *epos
, *csa_pos
;
435 #define MAX_PROBERESP_LEN 768
436 buflen
= MAX_PROBERESP_LEN
;
438 if (hapd
->wps_probe_resp_ie
)
439 buflen
+= wpabuf_len(hapd
->wps_probe_resp_ie
);
440 #endif /* CONFIG_WPS */
442 if (hapd
->p2p_probe_resp_ie
)
443 buflen
+= wpabuf_len(hapd
->p2p_probe_resp_ie
);
444 #endif /* CONFIG_P2P */
446 if (hapd
->iface
->fst_ies
)
447 buflen
+= wpabuf_len(hapd
->iface
->fst_ies
);
448 #endif /* CONFIG_FST */
449 if (hapd
->conf
->vendor_elements
)
450 buflen
+= wpabuf_len(hapd
->conf
->vendor_elements
);
451 if (hapd
->conf
->vendor_vht
) {
452 buflen
+= 5 + 2 + sizeof(struct ieee80211_vht_capabilities
) +
453 2 + sizeof(struct ieee80211_vht_operation
);
456 #ifdef CONFIG_IEEE80211AX
457 if (hapd
->iconf
->ieee80211ax
) {
458 buflen
+= 3 + sizeof(struct ieee80211_he_capabilities
) +
459 3 + sizeof(struct ieee80211_he_operation
);
461 #endif /* CONFIG_IEEE80211AX */
463 buflen
+= hostapd_mbo_ie_len(hapd
);
464 buflen
+= hostapd_eid_owe_trans_len(hapd
);
466 resp
= os_zalloc(buflen
);
470 epos
= ((u8
*) resp
) + MAX_PROBERESP_LEN
;
472 resp
->frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
473 WLAN_FC_STYPE_PROBE_RESP
);
475 os_memcpy(resp
->da
, req
->sa
, ETH_ALEN
);
476 os_memcpy(resp
->sa
, hapd
->own_addr
, ETH_ALEN
);
478 os_memcpy(resp
->bssid
, hapd
->own_addr
, ETH_ALEN
);
479 resp
->u
.probe_resp
.beacon_int
=
480 host_to_le16(hapd
->iconf
->beacon_int
);
482 /* hardware or low-level driver will setup seq_ctrl and timestamp */
483 resp
->u
.probe_resp
.capab_info
=
484 host_to_le16(hostapd_own_capab_info(hapd
));
486 pos
= resp
->u
.probe_resp
.variable
;
487 *pos
++ = WLAN_EID_SSID
;
488 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
489 os_memcpy(pos
, hapd
->conf
->ssid
.ssid
, hapd
->conf
->ssid
.ssid_len
);
490 pos
+= hapd
->conf
->ssid
.ssid_len
;
492 /* Supported rates */
493 pos
= hostapd_eid_supp_rates(hapd
, pos
);
496 pos
= hostapd_eid_ds_params(hapd
, pos
);
498 pos
= hostapd_eid_country(hapd
, pos
, epos
- pos
);
500 /* Power Constraint element */
501 pos
= hostapd_eid_pwr_constraint(hapd
, pos
);
504 csa_pos
= hostapd_eid_csa(hapd
, pos
);
506 hapd
->cs_c_off_proberesp
= csa_pos
- (u8
*) resp
- 1;
509 /* ERP Information element */
510 pos
= hostapd_eid_erp_info(hapd
, pos
);
512 /* Extended supported rates */
513 pos
= hostapd_eid_ext_supp_rates(hapd
, pos
);
516 pos
= hostapd_eid_wpa(hapd
, pos
, epos
- pos
);
518 pos
= hostapd_eid_bss_load(hapd
, pos
, epos
- pos
);
520 pos
= hostapd_eid_rm_enabled_capab(hapd
, pos
, epos
- pos
);
523 csa_pos
= hostapd_eid_ecsa(hapd
, pos
);
525 hapd
->cs_c_off_ecsa_proberesp
= csa_pos
- (u8
*) resp
- 1;
528 pos
= hostapd_eid_supported_op_classes(hapd
, pos
);
530 #ifdef CONFIG_IEEE80211N
531 /* Secondary Channel Offset element */
532 /* TODO: The standard doesn't specify a position for this element. */
533 pos
= hostapd_eid_secondary_channel(hapd
, pos
);
535 pos
= hostapd_eid_ht_capabilities(hapd
, pos
);
536 pos
= hostapd_eid_ht_operation(hapd
, pos
);
537 #endif /* CONFIG_IEEE80211N */
539 pos
= hostapd_eid_ext_capab(hapd
, pos
);
541 pos
= hostapd_eid_time_adv(hapd
, pos
);
542 pos
= hostapd_eid_time_zone(hapd
, pos
);
544 pos
= hostapd_eid_interworking(hapd
, pos
);
545 pos
= hostapd_eid_adv_proto(hapd
, pos
);
546 pos
= hostapd_eid_roaming_consortium(hapd
, pos
);
549 if (hapd
->iface
->fst_ies
) {
550 os_memcpy(pos
, wpabuf_head(hapd
->iface
->fst_ies
),
551 wpabuf_len(hapd
->iface
->fst_ies
));
552 pos
+= wpabuf_len(hapd
->iface
->fst_ies
);
554 #endif /* CONFIG_FST */
556 #ifdef CONFIG_IEEE80211AC
557 if (hapd
->iconf
->ieee80211ac
&& !hapd
->conf
->disable_11ac
) {
558 pos
= hostapd_eid_vht_capabilities(hapd
, pos
, 0);
559 pos
= hostapd_eid_vht_operation(hapd
, pos
);
560 pos
= hostapd_eid_txpower_envelope(hapd
, pos
);
561 pos
= hostapd_eid_wb_chsw_wrapper(hapd
, pos
);
563 #endif /* CONFIG_IEEE80211AC */
565 pos
= hostapd_eid_fils_indic(hapd
, pos
, 0);
567 #ifdef CONFIG_IEEE80211AX
568 if (hapd
->iconf
->ieee80211ax
) {
569 pos
= hostapd_eid_he_capab(hapd
, pos
);
570 pos
= hostapd_eid_he_operation(hapd
, pos
);
572 #endif /* CONFIG_IEEE80211AX */
574 #ifdef CONFIG_IEEE80211AC
575 if (hapd
->conf
->vendor_vht
)
576 pos
= hostapd_eid_vendor_vht(hapd
, pos
);
577 #endif /* CONFIG_IEEE80211AC */
579 /* Wi-Fi Alliance WMM */
580 pos
= hostapd_eid_wmm(hapd
, pos
);
583 if (hapd
->conf
->wps_state
&& hapd
->wps_probe_resp_ie
) {
584 os_memcpy(pos
, wpabuf_head(hapd
->wps_probe_resp_ie
),
585 wpabuf_len(hapd
->wps_probe_resp_ie
));
586 pos
+= wpabuf_len(hapd
->wps_probe_resp_ie
);
588 #endif /* CONFIG_WPS */
591 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && is_p2p
&&
592 hapd
->p2p_probe_resp_ie
) {
593 os_memcpy(pos
, wpabuf_head(hapd
->p2p_probe_resp_ie
),
594 wpabuf_len(hapd
->p2p_probe_resp_ie
));
595 pos
+= wpabuf_len(hapd
->p2p_probe_resp_ie
);
597 #endif /* CONFIG_P2P */
598 #ifdef CONFIG_P2P_MANAGER
599 if ((hapd
->conf
->p2p
& (P2P_MANAGE
| P2P_ENABLED
| P2P_GROUP_OWNER
)) ==
601 pos
= hostapd_eid_p2p_manage(hapd
, pos
);
602 #endif /* CONFIG_P2P_MANAGER */
605 pos
= hostapd_eid_hs20_indication(hapd
, pos
);
606 pos
= hostapd_eid_osen(hapd
, pos
);
607 #endif /* CONFIG_HS20 */
609 pos
= hostapd_eid_mbo(hapd
, pos
, (u8
*) resp
+ buflen
- pos
);
610 pos
= hostapd_eid_owe_trans(hapd
, pos
, (u8
*) resp
+ buflen
- pos
);
612 if (hapd
->conf
->vendor_elements
) {
613 os_memcpy(pos
, wpabuf_head(hapd
->conf
->vendor_elements
),
614 wpabuf_len(hapd
->conf
->vendor_elements
));
615 pos
+= wpabuf_len(hapd
->conf
->vendor_elements
);
618 *resp_len
= pos
- (u8
*) resp
;
623 enum ssid_match_result
{
629 static enum ssid_match_result
ssid_match(struct hostapd_data
*hapd
,
630 const u8
*ssid
, size_t ssid_len
,
632 size_t ssid_list_len
)
639 if (ssid_len
== hapd
->conf
->ssid
.ssid_len
&&
640 os_memcmp(ssid
, hapd
->conf
->ssid
.ssid
, ssid_len
) == 0)
641 return EXACT_SSID_MATCH
;
643 if (ssid_list
== NULL
)
644 return wildcard
? WILDCARD_SSID_MATCH
: NO_SSID_MATCH
;
647 end
= ssid_list
+ ssid_list_len
;
648 while (end
- pos
>= 1) {
649 if (2 + pos
[1] > end
- pos
)
653 if (pos
[1] == hapd
->conf
->ssid
.ssid_len
&&
654 os_memcmp(pos
+ 2, hapd
->conf
->ssid
.ssid
, pos
[1]) == 0)
655 return EXACT_SSID_MATCH
;
659 return wildcard
? WILDCARD_SSID_MATCH
: NO_SSID_MATCH
;
663 void sta_track_expire(struct hostapd_iface
*iface
, int force
)
665 struct os_reltime now
;
666 struct hostapd_sta_info
*info
;
668 if (!iface
->num_sta_seen
)
671 os_get_reltime(&now
);
672 while ((info
= dl_list_first(&iface
->sta_seen
, struct hostapd_sta_info
,
675 !os_reltime_expired(&now
, &info
->last_seen
,
676 iface
->conf
->track_sta_max_age
))
680 wpa_printf(MSG_MSGDUMP
, "%s: Expire STA tracking entry for "
681 MACSTR
, iface
->bss
[0]->conf
->iface
,
682 MAC2STR(info
->addr
));
683 dl_list_del(&info
->list
);
684 iface
->num_sta_seen
--;
690 static struct hostapd_sta_info
* sta_track_get(struct hostapd_iface
*iface
,
693 struct hostapd_sta_info
*info
;
695 dl_list_for_each(info
, &iface
->sta_seen
, struct hostapd_sta_info
, list
)
696 if (os_memcmp(addr
, info
->addr
, ETH_ALEN
) == 0)
703 void sta_track_add(struct hostapd_iface
*iface
, const u8
*addr
, int ssi_signal
)
705 struct hostapd_sta_info
*info
;
707 info
= sta_track_get(iface
, addr
);
709 /* Move the most recent entry to the end of the list */
710 dl_list_del(&info
->list
);
711 dl_list_add_tail(&iface
->sta_seen
, &info
->list
);
712 os_get_reltime(&info
->last_seen
);
713 info
->ssi_signal
= ssi_signal
;
717 /* Add a new entry */
718 info
= os_zalloc(sizeof(*info
));
721 os_memcpy(info
->addr
, addr
, ETH_ALEN
);
722 os_get_reltime(&info
->last_seen
);
723 info
->ssi_signal
= ssi_signal
;
725 if (iface
->num_sta_seen
>= iface
->conf
->track_sta_max_num
) {
726 /* Expire oldest entry to make room for a new one */
727 sta_track_expire(iface
, 1);
730 wpa_printf(MSG_MSGDUMP
, "%s: Add STA tracking entry for "
731 MACSTR
, iface
->bss
[0]->conf
->iface
, MAC2STR(addr
));
732 dl_list_add_tail(&iface
->sta_seen
, &info
->list
);
733 iface
->num_sta_seen
++;
737 struct hostapd_data
*
738 sta_track_seen_on(struct hostapd_iface
*iface
, const u8
*addr
,
741 struct hapd_interfaces
*interfaces
= iface
->interfaces
;
744 for (i
= 0; i
< interfaces
->count
; i
++) {
745 struct hostapd_data
*hapd
= NULL
;
747 iface
= interfaces
->iface
[i
];
748 for (j
= 0; j
< iface
->num_bss
; j
++) {
749 hapd
= iface
->bss
[j
];
750 if (os_strcmp(ifname
, hapd
->conf
->iface
) == 0)
755 if (hapd
&& sta_track_get(iface
, addr
))
763 #ifdef CONFIG_TAXONOMY
764 void sta_track_claim_taxonomy_info(struct hostapd_iface
*iface
, const u8
*addr
,
765 struct wpabuf
**probe_ie_taxonomy
)
767 struct hostapd_sta_info
*info
;
769 info
= sta_track_get(iface
, addr
);
773 wpabuf_free(*probe_ie_taxonomy
);
774 *probe_ie_taxonomy
= info
->probe_ie_taxonomy
;
775 info
->probe_ie_taxonomy
= NULL
;
777 #endif /* CONFIG_TAXONOMY */
780 void handle_probe_req(struct hostapd_data
*hapd
,
781 const struct ieee80211_mgmt
*mgmt
, size_t len
,
785 struct ieee802_11_elems elems
;
790 enum ssid_match_result res
;
795 if (len
< IEEE80211_HDRLEN
)
797 ie
= ((const u8
*) mgmt
) + IEEE80211_HDRLEN
;
798 if (hapd
->iconf
->track_sta_max_num
)
799 sta_track_add(hapd
->iface
, mgmt
->sa
, ssi_signal
);
800 ie_len
= len
- IEEE80211_HDRLEN
;
802 for (i
= 0; hapd
->probereq_cb
&& i
< hapd
->num_probereq_cb
; i
++)
803 if (hapd
->probereq_cb
[i
].cb(hapd
->probereq_cb
[i
].ctx
,
804 mgmt
->sa
, mgmt
->da
, mgmt
->bssid
,
805 ie
, ie_len
, ssi_signal
) > 0)
808 if (!hapd
->iconf
->send_probe_response
)
811 if (ieee802_11_parse_elems(ie
, ie_len
, &elems
, 0) == ParseFailed
) {
812 wpa_printf(MSG_DEBUG
, "Could not parse ProbeReq from " MACSTR
,
817 if ((!elems
.ssid
|| !elems
.supp_rates
)) {
818 wpa_printf(MSG_DEBUG
, "STA " MACSTR
" sent probe request "
819 "without SSID or supported rates element",
825 * No need to reply if the Probe Request frame was sent on an adjacent
826 * channel. IEEE Std 802.11-2012 describes this as a requirement for an
827 * AP with dot11RadioMeasurementActivated set to true, but strictly
828 * speaking does not allow such ignoring of Probe Request frames if
829 * dot11RadioMeasurementActivated is false. Anyway, this can help reduce
830 * number of unnecessary Probe Response frames for cases where the STA
831 * is less likely to see them (Probe Request frame sent on a
832 * neighboring, but partially overlapping, channel).
834 if (elems
.ds_params
&&
835 hapd
->iface
->current_mode
&&
836 (hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211G
||
837 hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211B
) &&
838 hapd
->iconf
->channel
!= elems
.ds_params
[0]) {
839 wpa_printf(MSG_DEBUG
,
840 "Ignore Probe Request due to DS Params mismatch: chan=%u != ds.chan=%u",
841 hapd
->iconf
->channel
, elems
.ds_params
[0]);
846 if (hapd
->p2p
&& hapd
->p2p_group
&& elems
.wps_ie
) {
848 wps
= ieee802_11_vendor_ie_concat(ie
, ie_len
, WPS_DEV_OUI_WFA
);
849 if (wps
&& !p2p_group_match_dev_type(hapd
->p2p_group
, wps
)) {
850 wpa_printf(MSG_MSGDUMP
, "P2P: Ignore Probe Request "
851 "due to mismatch with Requested Device "
859 if (hapd
->p2p
&& hapd
->p2p_group
&& elems
.p2p
) {
861 p2p
= ieee802_11_vendor_ie_concat(ie
, ie_len
, P2P_IE_VENDOR_TYPE
);
862 if (p2p
&& !p2p_group_match_dev_id(hapd
->p2p_group
, p2p
)) {
863 wpa_printf(MSG_MSGDUMP
, "P2P: Ignore Probe Request "
864 "due to mismatch with Device ID");
870 #endif /* CONFIG_P2P */
872 if (hapd
->conf
->ignore_broadcast_ssid
&& elems
.ssid_len
== 0 &&
873 elems
.ssid_list_len
== 0) {
874 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
" for "
875 "broadcast SSID ignored", MAC2STR(mgmt
->sa
));
880 if ((hapd
->conf
->p2p
& P2P_GROUP_OWNER
) &&
881 elems
.ssid_len
== P2P_WILDCARD_SSID_LEN
&&
882 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
,
883 P2P_WILDCARD_SSID_LEN
) == 0) {
884 /* Process P2P Wildcard SSID like Wildcard SSID */
887 #endif /* CONFIG_P2P */
889 #ifdef CONFIG_TAXONOMY
891 struct sta_info
*sta
;
892 struct hostapd_sta_info
*info
;
894 if ((sta
= ap_get_sta(hapd
, mgmt
->sa
)) != NULL
) {
895 taxonomy_sta_info_probe_req(hapd
, sta
, ie
, ie_len
);
896 } else if ((info
= sta_track_get(hapd
->iface
,
897 mgmt
->sa
)) != NULL
) {
898 taxonomy_hostapd_sta_info_probe_req(hapd
, info
,
902 #endif /* CONFIG_TAXONOMY */
904 res
= ssid_match(hapd
, elems
.ssid
, elems
.ssid_len
,
905 elems
.ssid_list
, elems
.ssid_list_len
);
906 if (res
== NO_SSID_MATCH
) {
907 if (!(mgmt
->da
[0] & 0x01)) {
908 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
909 " for foreign SSID '%s' (DA " MACSTR
")%s",
911 wpa_ssid_txt(elems
.ssid
, elems
.ssid_len
),
913 elems
.ssid_list
? " (SSID list)" : "");
918 #ifdef CONFIG_INTERWORKING
919 if (hapd
->conf
->interworking
&&
920 elems
.interworking
&& elems
.interworking_len
>= 1) {
921 u8 ant
= elems
.interworking
[0] & 0x0f;
922 if (ant
!= INTERWORKING_ANT_WILDCARD
&&
923 ant
!= hapd
->conf
->access_network_type
) {
924 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
925 " for mismatching ANT %u ignored",
926 MAC2STR(mgmt
->sa
), ant
);
931 if (hapd
->conf
->interworking
&& elems
.interworking
&&
932 (elems
.interworking_len
== 7 || elems
.interworking_len
== 9)) {
934 if (elems
.interworking_len
== 7)
935 hessid
= elems
.interworking
+ 1;
937 hessid
= elems
.interworking
+ 1 + 2;
938 if (!is_broadcast_ether_addr(hessid
) &&
939 os_memcmp(hessid
, hapd
->conf
->hessid
, ETH_ALEN
) != 0) {
940 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
941 " for mismatching HESSID " MACSTR
943 MAC2STR(mgmt
->sa
), MAC2STR(hessid
));
947 #endif /* CONFIG_INTERWORKING */
950 if ((hapd
->conf
->p2p
& P2P_GROUP_OWNER
) &&
951 supp_rates_11b_only(&elems
)) {
952 /* Indicates support for 11b rates only */
953 wpa_printf(MSG_EXCESSIVE
, "P2P: Ignore Probe Request from "
954 MACSTR
" with only 802.11b rates",
958 #endif /* CONFIG_P2P */
960 /* TODO: verify that supp_rates contains at least one matching rate
961 * with AP configuration */
963 if (hapd
->conf
->no_probe_resp_if_seen_on
&&
964 is_multicast_ether_addr(mgmt
->da
) &&
965 is_multicast_ether_addr(mgmt
->bssid
) &&
966 sta_track_seen_on(hapd
->iface
, mgmt
->sa
,
967 hapd
->conf
->no_probe_resp_if_seen_on
)) {
968 wpa_printf(MSG_MSGDUMP
, "%s: Ignore Probe Request from " MACSTR
969 " since STA has been seen on %s",
970 hapd
->conf
->iface
, MAC2STR(mgmt
->sa
),
971 hapd
->conf
->no_probe_resp_if_seen_on
);
975 if (hapd
->conf
->no_probe_resp_if_max_sta
&&
976 is_multicast_ether_addr(mgmt
->da
) &&
977 is_multicast_ether_addr(mgmt
->bssid
) &&
978 hapd
->num_sta
>= hapd
->conf
->max_num_sta
&&
979 !ap_get_sta(hapd
, mgmt
->sa
)) {
980 wpa_printf(MSG_MSGDUMP
, "%s: Ignore Probe Request from " MACSTR
981 " since no room for additional STA",
982 hapd
->conf
->iface
, MAC2STR(mgmt
->sa
));
986 #ifdef CONFIG_TESTING_OPTIONS
987 if (hapd
->iconf
->ignore_probe_probability
> 0.0 &&
988 drand48() < hapd
->iconf
->ignore_probe_probability
) {
990 "TESTING: ignoring probe request from " MACSTR
,
994 #endif /* CONFIG_TESTING_OPTIONS */
996 resp
= hostapd_gen_probe_resp(hapd
, mgmt
, elems
.p2p
!= NULL
,
1002 * If this is a broadcast probe request, apply no ack policy to avoid
1003 * excessive retries.
1005 noack
= !!(res
== WILDCARD_SSID_MATCH
&&
1006 is_broadcast_ether_addr(mgmt
->da
));
1009 if (hapd
->csa_in_progress
) {
1010 if (hapd
->cs_c_off_proberesp
)
1011 csa_offs
[csa_offs_len
++] =
1012 hapd
->cs_c_off_proberesp
;
1014 if (hapd
->cs_c_off_ecsa_proberesp
)
1015 csa_offs
[csa_offs_len
++] =
1016 hapd
->cs_c_off_ecsa_proberesp
;
1019 ret
= hostapd_drv_send_mlme_csa(hapd
, resp
, resp_len
, noack
,
1020 csa_offs_len
? csa_offs
: NULL
,
1024 wpa_printf(MSG_INFO
, "handle_probe_req: send failed");
1028 wpa_printf(MSG_EXCESSIVE
, "STA " MACSTR
" sent probe request for %s "
1029 "SSID", MAC2STR(mgmt
->sa
),
1030 elems
.ssid_len
== 0 ? "broadcast" : "our");
1034 static u8
* hostapd_probe_resp_offloads(struct hostapd_data
*hapd
,
1037 /* check probe response offloading caps and print warnings */
1038 if (!(hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD
))
1042 if (hapd
->conf
->wps_state
&& hapd
->wps_probe_resp_ie
&&
1043 (!(hapd
->iface
->probe_resp_offloads
&
1044 (WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS
|
1045 WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2
))))
1046 wpa_printf(MSG_WARNING
, "Device is trying to offload WPS "
1047 "Probe Response while not supporting this");
1048 #endif /* CONFIG_WPS */
1051 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && hapd
->p2p_probe_resp_ie
&&
1052 !(hapd
->iface
->probe_resp_offloads
&
1053 WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P
))
1054 wpa_printf(MSG_WARNING
, "Device is trying to offload P2P "
1055 "Probe Response while not supporting this");
1056 #endif /* CONFIG_P2P */
1058 if (hapd
->conf
->interworking
&&
1059 !(hapd
->iface
->probe_resp_offloads
&
1060 WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING
))
1061 wpa_printf(MSG_WARNING
, "Device is trying to offload "
1062 "Interworking Probe Response while not supporting "
1065 /* Generate a Probe Response template for the non-P2P case */
1066 return hostapd_gen_probe_resp(hapd
, NULL
, 0, resp_len
);
1069 #endif /* NEED_AP_MLME */
1072 void sta_track_del(struct hostapd_sta_info
*info
)
1074 #ifdef CONFIG_TAXONOMY
1075 wpabuf_free(info
->probe_ie_taxonomy
);
1076 info
->probe_ie_taxonomy
= NULL
;
1077 #endif /* CONFIG_TAXONOMY */
1082 int ieee802_11_build_ap_params(struct hostapd_data
*hapd
,
1083 struct wpa_driver_ap_params
*params
)
1085 struct ieee80211_mgmt
*head
= NULL
;
1087 size_t head_len
= 0, tail_len
= 0;
1089 size_t resp_len
= 0;
1092 u8
*pos
, *tailpos
, *csa_pos
;
1094 #define BEACON_HEAD_BUF_SIZE 256
1095 #define BEACON_TAIL_BUF_SIZE 512
1096 head
= os_zalloc(BEACON_HEAD_BUF_SIZE
);
1097 tail_len
= BEACON_TAIL_BUF_SIZE
;
1099 if (hapd
->conf
->wps_state
&& hapd
->wps_beacon_ie
)
1100 tail_len
+= wpabuf_len(hapd
->wps_beacon_ie
);
1101 #endif /* CONFIG_WPS */
1103 if (hapd
->p2p_beacon_ie
)
1104 tail_len
+= wpabuf_len(hapd
->p2p_beacon_ie
);
1105 #endif /* CONFIG_P2P */
1107 if (hapd
->iface
->fst_ies
)
1108 tail_len
+= wpabuf_len(hapd
->iface
->fst_ies
);
1109 #endif /* CONFIG_FST */
1110 if (hapd
->conf
->vendor_elements
)
1111 tail_len
+= wpabuf_len(hapd
->conf
->vendor_elements
);
1113 #ifdef CONFIG_IEEE80211AC
1114 if (hapd
->conf
->vendor_vht
) {
1115 tail_len
+= 5 + 2 + sizeof(struct ieee80211_vht_capabilities
) +
1116 2 + sizeof(struct ieee80211_vht_operation
);
1118 #endif /* CONFIG_IEEE80211AC */
1120 #ifdef CONFIG_IEEE80211AX
1121 if (hapd
->iconf
->ieee80211ax
) {
1122 tail_len
+= 3 + sizeof(struct ieee80211_he_capabilities
) +
1123 3 + sizeof(struct ieee80211_he_operation
);
1125 #endif /* CONFIG_IEEE80211AX */
1127 tail_len
+= hostapd_mbo_ie_len(hapd
);
1128 tail_len
+= hostapd_eid_owe_trans_len(hapd
);
1130 tailpos
= tail
= os_malloc(tail_len
);
1131 if (head
== NULL
|| tail
== NULL
) {
1132 wpa_printf(MSG_ERROR
, "Failed to set beacon data");
1138 head
->frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
1139 WLAN_FC_STYPE_BEACON
);
1140 head
->duration
= host_to_le16(0);
1141 os_memset(head
->da
, 0xff, ETH_ALEN
);
1143 os_memcpy(head
->sa
, hapd
->own_addr
, ETH_ALEN
);
1144 os_memcpy(head
->bssid
, hapd
->own_addr
, ETH_ALEN
);
1145 head
->u
.beacon
.beacon_int
=
1146 host_to_le16(hapd
->iconf
->beacon_int
);
1148 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1149 capab_info
= hostapd_own_capab_info(hapd
);
1150 head
->u
.beacon
.capab_info
= host_to_le16(capab_info
);
1151 pos
= &head
->u
.beacon
.variable
[0];
1154 *pos
++ = WLAN_EID_SSID
;
1155 if (hapd
->conf
->ignore_broadcast_ssid
== 2) {
1156 /* clear the data, but keep the correct length of the SSID */
1157 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
1158 os_memset(pos
, 0, hapd
->conf
->ssid
.ssid_len
);
1159 pos
+= hapd
->conf
->ssid
.ssid_len
;
1160 } else if (hapd
->conf
->ignore_broadcast_ssid
) {
1161 *pos
++ = 0; /* empty SSID */
1163 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
1164 os_memcpy(pos
, hapd
->conf
->ssid
.ssid
,
1165 hapd
->conf
->ssid
.ssid_len
);
1166 pos
+= hapd
->conf
->ssid
.ssid_len
;
1169 /* Supported rates */
1170 pos
= hostapd_eid_supp_rates(hapd
, pos
);
1173 pos
= hostapd_eid_ds_params(hapd
, pos
);
1175 head_len
= pos
- (u8
*) head
;
1177 tailpos
= hostapd_eid_country(hapd
, tailpos
,
1178 tail
+ BEACON_TAIL_BUF_SIZE
- tailpos
);
1180 /* Power Constraint element */
1181 tailpos
= hostapd_eid_pwr_constraint(hapd
, tailpos
);
1184 csa_pos
= hostapd_eid_csa(hapd
, tailpos
);
1185 if (csa_pos
!= tailpos
)
1186 hapd
->cs_c_off_beacon
= csa_pos
- tail
- 1;
1189 /* ERP Information element */
1190 tailpos
= hostapd_eid_erp_info(hapd
, tailpos
);
1192 /* Extended supported rates */
1193 tailpos
= hostapd_eid_ext_supp_rates(hapd
, tailpos
);
1195 /* RSN, MDIE, WPA */
1196 tailpos
= hostapd_eid_wpa(hapd
, tailpos
, tail
+ BEACON_TAIL_BUF_SIZE
-
1199 tailpos
= hostapd_eid_rm_enabled_capab(hapd
, tailpos
,
1200 tail
+ BEACON_TAIL_BUF_SIZE
-
1203 tailpos
= hostapd_eid_bss_load(hapd
, tailpos
,
1204 tail
+ BEACON_TAIL_BUF_SIZE
- tailpos
);
1207 csa_pos
= hostapd_eid_ecsa(hapd
, tailpos
);
1208 if (csa_pos
!= tailpos
)
1209 hapd
->cs_c_off_ecsa_beacon
= csa_pos
- tail
- 1;
1212 tailpos
= hostapd_eid_supported_op_classes(hapd
, tailpos
);
1214 #ifdef CONFIG_IEEE80211N
1215 /* Secondary Channel Offset element */
1216 /* TODO: The standard doesn't specify a position for this element. */
1217 tailpos
= hostapd_eid_secondary_channel(hapd
, tailpos
);
1219 tailpos
= hostapd_eid_ht_capabilities(hapd
, tailpos
);
1220 tailpos
= hostapd_eid_ht_operation(hapd
, tailpos
);
1221 #endif /* CONFIG_IEEE80211N */
1223 tailpos
= hostapd_eid_ext_capab(hapd
, tailpos
);
1226 * TODO: Time Advertisement element should only be included in some
1227 * DTIM Beacon frames.
1229 tailpos
= hostapd_eid_time_adv(hapd
, tailpos
);
1231 tailpos
= hostapd_eid_interworking(hapd
, tailpos
);
1232 tailpos
= hostapd_eid_adv_proto(hapd
, tailpos
);
1233 tailpos
= hostapd_eid_roaming_consortium(hapd
, tailpos
);
1236 if (hapd
->iface
->fst_ies
) {
1237 os_memcpy(tailpos
, wpabuf_head(hapd
->iface
->fst_ies
),
1238 wpabuf_len(hapd
->iface
->fst_ies
));
1239 tailpos
+= wpabuf_len(hapd
->iface
->fst_ies
);
1241 #endif /* CONFIG_FST */
1243 #ifdef CONFIG_IEEE80211AC
1244 if (hapd
->iconf
->ieee80211ac
&& !hapd
->conf
->disable_11ac
) {
1245 tailpos
= hostapd_eid_vht_capabilities(hapd
, tailpos
, 0);
1246 tailpos
= hostapd_eid_vht_operation(hapd
, tailpos
);
1247 tailpos
= hostapd_eid_txpower_envelope(hapd
, tailpos
);
1248 tailpos
= hostapd_eid_wb_chsw_wrapper(hapd
, tailpos
);
1250 #endif /* CONFIG_IEEE80211AC */
1252 tailpos
= hostapd_eid_fils_indic(hapd
, tailpos
, 0);
1254 #ifdef CONFIG_IEEE80211AX
1255 if (hapd
->iconf
->ieee80211ax
) {
1256 tailpos
= hostapd_eid_he_capab(hapd
, tailpos
);
1257 tailpos
= hostapd_eid_he_operation(hapd
, tailpos
);
1259 #endif /* CONFIG_IEEE80211AX */
1261 #ifdef CONFIG_IEEE80211AC
1262 if (hapd
->conf
->vendor_vht
)
1263 tailpos
= hostapd_eid_vendor_vht(hapd
, tailpos
);
1264 #endif /* CONFIG_IEEE80211AC */
1266 /* Wi-Fi Alliance WMM */
1267 tailpos
= hostapd_eid_wmm(hapd
, tailpos
);
1270 if (hapd
->conf
->wps_state
&& hapd
->wps_beacon_ie
) {
1271 os_memcpy(tailpos
, wpabuf_head(hapd
->wps_beacon_ie
),
1272 wpabuf_len(hapd
->wps_beacon_ie
));
1273 tailpos
+= wpabuf_len(hapd
->wps_beacon_ie
);
1275 #endif /* CONFIG_WPS */
1278 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && hapd
->p2p_beacon_ie
) {
1279 os_memcpy(tailpos
, wpabuf_head(hapd
->p2p_beacon_ie
),
1280 wpabuf_len(hapd
->p2p_beacon_ie
));
1281 tailpos
+= wpabuf_len(hapd
->p2p_beacon_ie
);
1283 #endif /* CONFIG_P2P */
1284 #ifdef CONFIG_P2P_MANAGER
1285 if ((hapd
->conf
->p2p
& (P2P_MANAGE
| P2P_ENABLED
| P2P_GROUP_OWNER
)) ==
1287 tailpos
= hostapd_eid_p2p_manage(hapd
, tailpos
);
1288 #endif /* CONFIG_P2P_MANAGER */
1291 tailpos
= hostapd_eid_hs20_indication(hapd
, tailpos
);
1292 tailpos
= hostapd_eid_osen(hapd
, tailpos
);
1293 #endif /* CONFIG_HS20 */
1295 tailpos
= hostapd_eid_mbo(hapd
, tailpos
, tail
+ tail_len
- tailpos
);
1296 tailpos
= hostapd_eid_owe_trans(hapd
, tailpos
,
1297 tail
+ tail_len
- tailpos
);
1299 if (hapd
->conf
->vendor_elements
) {
1300 os_memcpy(tailpos
, wpabuf_head(hapd
->conf
->vendor_elements
),
1301 wpabuf_len(hapd
->conf
->vendor_elements
));
1302 tailpos
+= wpabuf_len(hapd
->conf
->vendor_elements
);
1305 tail_len
= tailpos
> tail
? tailpos
- tail
: 0;
1307 resp
= hostapd_probe_resp_offloads(hapd
, &resp_len
);
1308 #endif /* NEED_AP_MLME */
1310 os_memset(params
, 0, sizeof(*params
));
1311 params
->head
= (u8
*) head
;
1312 params
->head_len
= head_len
;
1313 params
->tail
= tail
;
1314 params
->tail_len
= tail_len
;
1315 params
->proberesp
= resp
;
1316 params
->proberesp_len
= resp_len
;
1317 params
->dtim_period
= hapd
->conf
->dtim_period
;
1318 params
->beacon_int
= hapd
->iconf
->beacon_int
;
1319 params
->basic_rates
= hapd
->iface
->basic_rates
;
1320 params
->beacon_rate
= hapd
->iconf
->beacon_rate
;
1321 params
->rate_type
= hapd
->iconf
->rate_type
;
1322 params
->ssid
= hapd
->conf
->ssid
.ssid
;
1323 params
->ssid_len
= hapd
->conf
->ssid
.ssid_len
;
1324 if ((hapd
->conf
->wpa
& (WPA_PROTO_WPA
| WPA_PROTO_RSN
)) ==
1325 (WPA_PROTO_WPA
| WPA_PROTO_RSN
))
1326 params
->pairwise_ciphers
= hapd
->conf
->wpa_pairwise
|
1327 hapd
->conf
->rsn_pairwise
;
1328 else if (hapd
->conf
->wpa
& WPA_PROTO_RSN
)
1329 params
->pairwise_ciphers
= hapd
->conf
->rsn_pairwise
;
1330 else if (hapd
->conf
->wpa
& WPA_PROTO_WPA
)
1331 params
->pairwise_ciphers
= hapd
->conf
->wpa_pairwise
;
1332 params
->group_cipher
= hapd
->conf
->wpa_group
;
1333 params
->key_mgmt_suites
= hapd
->conf
->wpa_key_mgmt
;
1334 params
->auth_algs
= hapd
->conf
->auth_algs
;
1335 params
->wpa_version
= hapd
->conf
->wpa
;
1336 params
->privacy
= hapd
->conf
->ssid
.wep
.keys_set
|| hapd
->conf
->wpa
||
1337 (hapd
->conf
->ieee802_1x
&&
1338 (hapd
->conf
->default_wep_key_len
||
1339 hapd
->conf
->individual_wep_key_len
));
1340 switch (hapd
->conf
->ignore_broadcast_ssid
) {
1342 params
->hide_ssid
= NO_SSID_HIDING
;
1345 params
->hide_ssid
= HIDDEN_SSID_ZERO_LEN
;
1348 params
->hide_ssid
= HIDDEN_SSID_ZERO_CONTENTS
;
1351 params
->isolate
= hapd
->conf
->isolate
;
1352 params
->smps_mode
= hapd
->iconf
->ht_capab
& HT_CAP_INFO_SMPS_MASK
;
1354 params
->cts_protect
= !!(ieee802_11_erp_info(hapd
) &
1355 ERP_INFO_USE_PROTECTION
);
1356 params
->preamble
= hapd
->iface
->num_sta_no_short_preamble
== 0 &&
1357 hapd
->iconf
->preamble
== SHORT_PREAMBLE
;
1358 if (hapd
->iface
->current_mode
&&
1359 hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211G
)
1360 params
->short_slot_time
=
1361 hapd
->iface
->num_sta_no_short_slot_time
> 0 ? 0 : 1;
1363 params
->short_slot_time
= -1;
1364 if (!hapd
->iconf
->ieee80211n
|| hapd
->conf
->disable_11n
)
1365 params
->ht_opmode
= -1;
1367 params
->ht_opmode
= hapd
->iface
->ht_op_mode
;
1368 #endif /* NEED_AP_MLME */
1369 params
->interworking
= hapd
->conf
->interworking
;
1370 if (hapd
->conf
->interworking
&&
1371 !is_zero_ether_addr(hapd
->conf
->hessid
))
1372 params
->hessid
= hapd
->conf
->hessid
;
1373 params
->access_network_type
= hapd
->conf
->access_network_type
;
1374 params
->ap_max_inactivity
= hapd
->conf
->ap_max_inactivity
;
1376 params
->p2p_go_ctwindow
= hapd
->iconf
->p2p_go_ctwindow
;
1377 #endif /* CONFIG_P2P */
1379 params
->disable_dgaf
= hapd
->conf
->disable_dgaf
;
1380 if (hapd
->conf
->osen
) {
1381 params
->privacy
= 1;
1384 #endif /* CONFIG_HS20 */
1385 params
->multicast_to_unicast
= hapd
->conf
->multicast_to_unicast
;
1386 params
->pbss
= hapd
->conf
->pbss
;
1391 void ieee802_11_free_ap_params(struct wpa_driver_ap_params
*params
)
1393 os_free(params
->tail
);
1394 params
->tail
= NULL
;
1395 os_free(params
->head
);
1396 params
->head
= NULL
;
1397 os_free(params
->proberesp
);
1398 params
->proberesp
= NULL
;
1402 int ieee802_11_set_beacon(struct hostapd_data
*hapd
)
1404 struct wpa_driver_ap_params params
;
1405 struct hostapd_freq_params freq
;
1406 struct hostapd_iface
*iface
= hapd
->iface
;
1407 struct hostapd_config
*iconf
= iface
->conf
;
1408 struct wpabuf
*beacon
, *proberesp
, *assocresp
;
1411 if (hapd
->csa_in_progress
) {
1412 wpa_printf(MSG_ERROR
, "Cannot set beacons during CSA period");
1416 hapd
->beacon_set_done
= 1;
1418 if (ieee802_11_build_ap_params(hapd
, ¶ms
) < 0)
1421 if (hostapd_build_ap_extra_ies(hapd
, &beacon
, &proberesp
, &assocresp
) <
1425 params
.beacon_ies
= beacon
;
1426 params
.proberesp_ies
= proberesp
;
1427 params
.assocresp_ies
= assocresp
;
1428 params
.reenable
= hapd
->reenable_beacon
;
1429 hapd
->reenable_beacon
= 0;
1431 if (iface
->current_mode
&&
1432 hostapd_set_freq_params(&freq
, iconf
->hw_mode
, iface
->freq
,
1433 iconf
->channel
, iconf
->ieee80211n
,
1435 iconf
->secondary_channel
,
1436 iconf
->vht_oper_chwidth
,
1437 iconf
->vht_oper_centr_freq_seg0_idx
,
1438 iconf
->vht_oper_centr_freq_seg1_idx
,
1439 iface
->current_mode
->vht_capab
) == 0)
1440 params
.freq
= &freq
;
1442 res
= hostapd_drv_set_ap(hapd
, ¶ms
);
1443 hostapd_free_ap_extra_ies(hapd
, beacon
, proberesp
, assocresp
);
1445 wpa_printf(MSG_ERROR
, "Failed to set beacon parameters");
1449 ieee802_11_free_ap_params(¶ms
);
1454 int ieee802_11_set_beacons(struct hostapd_iface
*iface
)
1459 for (i
= 0; i
< iface
->num_bss
; i
++) {
1460 if (iface
->bss
[i
]->started
&&
1461 ieee802_11_set_beacon(iface
->bss
[i
]) < 0)
1469 /* only update beacons if started */
1470 int ieee802_11_update_beacons(struct hostapd_iface
*iface
)
1475 for (i
= 0; i
< iface
->num_bss
; i
++) {
1476 if (iface
->bss
[i
]->beacon_set_done
&& iface
->bss
[i
]->started
&&
1477 ieee802_11_set_beacon(iface
->bss
[i
]) < 0)
1484 #endif /* CONFIG_NATIVE_WINDOWS */