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 "common/wpa_ctrl.h"
20 #include "wps/wps_defs.h"
23 #include "ieee802_11.h"
26 #include "ap_config.h"
28 #include "p2p_hostapd.h"
29 #include "ap_drv_ops.h"
34 #include "ieee802_11_auth.h"
39 static u8
* hostapd_eid_rm_enabled_capab(struct hostapd_data
*hapd
, u8
*eid
,
44 for (i
= 0; i
< RRM_CAPABILITIES_IE_LEN
; i
++) {
45 if (hapd
->conf
->radio_measurements
[i
])
49 if (i
== RRM_CAPABILITIES_IE_LEN
|| len
< 2 + RRM_CAPABILITIES_IE_LEN
)
52 *eid
++ = WLAN_EID_RRM_ENABLED_CAPABILITIES
;
53 *eid
++ = RRM_CAPABILITIES_IE_LEN
;
54 os_memcpy(eid
, hapd
->conf
->radio_measurements
, RRM_CAPABILITIES_IE_LEN
);
56 return eid
+ RRM_CAPABILITIES_IE_LEN
;
60 static u8
* hostapd_eid_bss_load(struct hostapd_data
*hapd
, u8
*eid
, size_t len
)
65 #ifdef CONFIG_TESTING_OPTIONS
66 if (hapd
->conf
->bss_load_test_set
) {
67 *eid
++ = WLAN_EID_BSS_LOAD
;
69 os_memcpy(eid
, hapd
->conf
->bss_load_test
, 5);
73 #endif /* CONFIG_TESTING_OPTIONS */
74 if (hapd
->conf
->bss_load_update_period
) {
75 *eid
++ = WLAN_EID_BSS_LOAD
;
77 WPA_PUT_LE16(eid
, hapd
->num_sta
);
79 *eid
++ = hapd
->iface
->channel_utilization
;
80 WPA_PUT_LE16(eid
, 0); /* no available admission capabity */
87 static u8
ieee802_11_erp_info(struct hostapd_data
*hapd
)
91 if (hapd
->iface
->current_mode
== NULL
||
92 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211G
)
95 if (hapd
->iface
->olbc
)
96 erp
|= ERP_INFO_USE_PROTECTION
;
97 if (hapd
->iface
->num_sta_non_erp
> 0) {
98 erp
|= ERP_INFO_NON_ERP_PRESENT
|
99 ERP_INFO_USE_PROTECTION
;
101 if (hapd
->iface
->num_sta_no_short_preamble
> 0 ||
102 hapd
->iconf
->preamble
== LONG_PREAMBLE
)
103 erp
|= ERP_INFO_BARKER_PREAMBLE_MODE
;
109 static u8
* hostapd_eid_ds_params(struct hostapd_data
*hapd
, u8
*eid
)
111 *eid
++ = WLAN_EID_DS_PARAMS
;
113 *eid
++ = hapd
->iconf
->channel
;
118 static u8
* hostapd_eid_erp_info(struct hostapd_data
*hapd
, u8
*eid
)
120 if (hapd
->iface
->current_mode
== NULL
||
121 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211G
)
124 /* Set NonERP_present and use_protection bits if there
125 * are any associated NonERP stations. */
126 /* TODO: use_protection bit can be set to zero even if
127 * there are NonERP stations present. This optimization
128 * might be useful if NonERP stations are "quiet".
129 * See 802.11g/D6 E-1 for recommended practice.
130 * In addition, Non ERP present might be set, if AP detects Non ERP
131 * operation on other APs. */
133 /* Add ERP Information element */
134 *eid
++ = WLAN_EID_ERP_INFO
;
136 *eid
++ = ieee802_11_erp_info(hapd
);
142 static u8
* hostapd_eid_pwr_constraint(struct hostapd_data
*hapd
, u8
*eid
)
145 u8 local_pwr_constraint
= 0;
148 if (hapd
->iface
->current_mode
== NULL
||
149 hapd
->iface
->current_mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
152 /* Let host drivers add this IE if DFS support is offloaded */
153 if (hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_DFS_OFFLOAD
)
157 * There is no DFS support and power constraint was not directly
158 * requested by config option.
160 if (!hapd
->iconf
->ieee80211h
&&
161 hapd
->iconf
->local_pwr_constraint
== -1)
164 /* Check if DFS is required by regulatory. */
165 dfs
= hostapd_is_dfs_required(hapd
->iface
);
167 wpa_printf(MSG_WARNING
, "Failed to check if DFS is required; ret=%d",
172 if (dfs
== 0 && hapd
->iconf
->local_pwr_constraint
== -1)
176 * ieee80211h (DFS) is enabled so Power Constraint element shall
177 * be added when running on DFS channel whenever local_pwr_constraint
178 * is configured or not. In order to meet regulations when TPC is not
179 * implemented using a transmit power that is below the legal maximum
180 * (including any mitigation factor) should help. In this case,
181 * indicate 3 dB below maximum allowed transmit power.
183 if (hapd
->iconf
->local_pwr_constraint
== -1)
184 local_pwr_constraint
= 3;
187 * A STA that is not an AP shall use a transmit power less than or
188 * equal to the local maximum transmit power level for the channel.
189 * The local maximum transmit power can be calculated from the formula:
190 * local max TX pwr = max TX pwr - local pwr constraint
191 * Where max TX pwr is maximum transmit power level specified for
192 * channel in Country element and local pwr constraint is specified
193 * for channel in this Power Constraint element.
197 *pos
++ = WLAN_EID_PWR_CONSTRAINT
;
200 /* Local Power Constraint */
201 if (local_pwr_constraint
)
202 *pos
++ = local_pwr_constraint
;
204 *pos
++ = hapd
->iconf
->local_pwr_constraint
;
210 static u8
* hostapd_eid_country_add(u8
*pos
, u8
*end
, int chan_spacing
,
211 struct hostapd_channel_data
*start
,
212 struct hostapd_channel_data
*prev
)
217 /* first channel number */
218 *pos
++ = start
->chan
;
219 /* number of channels */
220 *pos
++ = (prev
->chan
- start
->chan
) / chan_spacing
+ 1;
221 /* maximum transmit power level */
222 *pos
++ = start
->max_tx_power
;
228 static u8
* hostapd_eid_country(struct hostapd_data
*hapd
, u8
*eid
,
232 u8
*end
= eid
+ max_len
;
234 struct hostapd_hw_modes
*mode
;
235 struct hostapd_channel_data
*start
, *prev
;
236 int chan_spacing
= 1;
238 if (!hapd
->iconf
->ieee80211d
|| max_len
< 6 ||
239 hapd
->iface
->current_mode
== NULL
)
242 *pos
++ = WLAN_EID_COUNTRY
;
243 pos
++; /* length will be set later */
244 os_memcpy(pos
, hapd
->iconf
->country
, 3); /* e.g., 'US ' */
247 mode
= hapd
->iface
->current_mode
;
248 if (mode
->mode
== HOSTAPD_MODE_IEEE80211A
)
252 for (i
= 0; i
< mode
->num_channels
; i
++) {
253 struct hostapd_channel_data
*chan
= &mode
->channels
[i
];
254 if (chan
->flag
& HOSTAPD_CHAN_DISABLED
)
257 prev
->chan
+ chan_spacing
== chan
->chan
&&
258 start
->max_tx_power
== chan
->max_tx_power
) {
260 continue; /* can use same entry */
264 pos
= hostapd_eid_country_add(pos
, end
, chan_spacing
,
269 /* Start new group */
274 pos
= hostapd_eid_country_add(pos
, end
, chan_spacing
,
278 if ((pos
- eid
) & 1) {
281 *pos
++ = 0; /* pad for 16-bit alignment */
284 eid
[1] = (pos
- eid
) - 2;
290 static u8
* hostapd_eid_wpa(struct hostapd_data
*hapd
, u8
*eid
, size_t len
)
295 ie
= wpa_auth_get_wpa_ie(hapd
->wpa_auth
, &ielen
);
296 if (ie
== NULL
|| ielen
> len
)
299 os_memcpy(eid
, ie
, ielen
);
304 static u8
* hostapd_eid_csa(struct hostapd_data
*hapd
, u8
*eid
)
306 #ifdef CONFIG_TESTING_OPTIONS
307 if (hapd
->iface
->cs_oper_class
&& hapd
->iconf
->ecsa_ie_only
)
309 #endif /* CONFIG_TESTING_OPTIONS */
311 if (!hapd
->cs_freq_params
.channel
)
314 *eid
++ = WLAN_EID_CHANNEL_SWITCH
;
316 *eid
++ = hapd
->cs_block_tx
;
317 *eid
++ = hapd
->cs_freq_params
.channel
;
318 *eid
++ = hapd
->cs_count
;
324 static u8
* hostapd_eid_ecsa(struct hostapd_data
*hapd
, u8
*eid
)
326 if (!hapd
->cs_freq_params
.channel
|| !hapd
->iface
->cs_oper_class
)
329 *eid
++ = WLAN_EID_EXT_CHANSWITCH_ANN
;
331 *eid
++ = hapd
->cs_block_tx
;
332 *eid
++ = hapd
->iface
->cs_oper_class
;
333 *eid
++ = hapd
->cs_freq_params
.channel
;
334 *eid
++ = hapd
->cs_count
;
340 static u8
* hostapd_eid_supported_op_classes(struct hostapd_data
*hapd
, u8
*eid
)
342 u8 op_class
, channel
;
344 if (!(hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_AP_CSA
) ||
348 if (ieee80211_freq_to_channel_ext(hapd
->iface
->freq
,
349 hapd
->iconf
->secondary_channel
,
350 hostapd_get_oper_chwidth(hapd
->iconf
),
351 &op_class
, &channel
) ==
355 *eid
++ = WLAN_EID_SUPPORTED_OPERATING_CLASSES
;
358 /* Current Operating Class */
361 /* TODO: Advertise all the supported operating classes */
368 static u8
* hostapd_gen_probe_resp(struct hostapd_data
*hapd
,
369 const struct ieee80211_mgmt
*req
,
370 int is_p2p
, size_t *resp_len
)
372 struct ieee80211_mgmt
*resp
;
373 u8
*pos
, *epos
, *csa_pos
;
376 #define MAX_PROBERESP_LEN 768
377 buflen
= MAX_PROBERESP_LEN
;
379 if (hapd
->wps_probe_resp_ie
)
380 buflen
+= wpabuf_len(hapd
->wps_probe_resp_ie
);
381 #endif /* CONFIG_WPS */
383 if (hapd
->p2p_probe_resp_ie
)
384 buflen
+= wpabuf_len(hapd
->p2p_probe_resp_ie
);
385 #endif /* CONFIG_P2P */
387 if (hapd
->iface
->fst_ies
)
388 buflen
+= wpabuf_len(hapd
->iface
->fst_ies
);
389 #endif /* CONFIG_FST */
390 if (hapd
->conf
->vendor_elements
)
391 buflen
+= wpabuf_len(hapd
->conf
->vendor_elements
);
392 if (hapd
->conf
->vendor_vht
) {
393 buflen
+= 5 + 2 + sizeof(struct ieee80211_vht_capabilities
) +
394 2 + sizeof(struct ieee80211_vht_operation
);
397 #ifdef CONFIG_IEEE80211AX
398 if (hapd
->iconf
->ieee80211ax
) {
399 buflen
+= 3 + sizeof(struct ieee80211_he_capabilities
) +
400 3 + sizeof(struct ieee80211_he_operation
) +
401 3 + sizeof(struct ieee80211_he_mu_edca_parameter_set
) +
402 3 + sizeof(struct ieee80211_spatial_reuse
);
404 #endif /* CONFIG_IEEE80211AX */
406 buflen
+= hostapd_mbo_ie_len(hapd
);
407 buflen
+= hostapd_eid_owe_trans_len(hapd
);
409 resp
= os_zalloc(buflen
);
413 epos
= ((u8
*) resp
) + MAX_PROBERESP_LEN
;
415 resp
->frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
416 WLAN_FC_STYPE_PROBE_RESP
);
418 os_memcpy(resp
->da
, req
->sa
, ETH_ALEN
);
419 os_memcpy(resp
->sa
, hapd
->own_addr
, ETH_ALEN
);
421 os_memcpy(resp
->bssid
, hapd
->own_addr
, ETH_ALEN
);
422 resp
->u
.probe_resp
.beacon_int
=
423 host_to_le16(hapd
->iconf
->beacon_int
);
425 /* hardware or low-level driver will setup seq_ctrl and timestamp */
426 resp
->u
.probe_resp
.capab_info
=
427 host_to_le16(hostapd_own_capab_info(hapd
));
429 pos
= resp
->u
.probe_resp
.variable
;
430 *pos
++ = WLAN_EID_SSID
;
431 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
432 os_memcpy(pos
, hapd
->conf
->ssid
.ssid
, hapd
->conf
->ssid
.ssid_len
);
433 pos
+= hapd
->conf
->ssid
.ssid_len
;
435 /* Supported rates */
436 pos
= hostapd_eid_supp_rates(hapd
, pos
);
439 pos
= hostapd_eid_ds_params(hapd
, pos
);
441 pos
= hostapd_eid_country(hapd
, pos
, epos
- pos
);
443 /* Power Constraint element */
444 pos
= hostapd_eid_pwr_constraint(hapd
, pos
);
447 csa_pos
= hostapd_eid_csa(hapd
, pos
);
449 hapd
->cs_c_off_proberesp
= csa_pos
- (u8
*) resp
- 1;
452 /* ERP Information element */
453 pos
= hostapd_eid_erp_info(hapd
, pos
);
455 /* Extended supported rates */
456 pos
= hostapd_eid_ext_supp_rates(hapd
, pos
);
459 if (hapd
->conf
->wpa
!= WPA_PROTO_WPA
)
460 pos
= hostapd_eid_wpa(hapd
, pos
, epos
- pos
);
462 pos
= hostapd_eid_bss_load(hapd
, pos
, epos
- pos
);
464 pos
= hostapd_eid_rm_enabled_capab(hapd
, pos
, epos
- pos
);
467 csa_pos
= hostapd_eid_ecsa(hapd
, pos
);
469 hapd
->cs_c_off_ecsa_proberesp
= csa_pos
- (u8
*) resp
- 1;
472 pos
= hostapd_eid_supported_op_classes(hapd
, pos
);
474 #ifdef CONFIG_IEEE80211N
475 /* Secondary Channel Offset element */
476 /* TODO: The standard doesn't specify a position for this element. */
477 pos
= hostapd_eid_secondary_channel(hapd
, pos
);
479 pos
= hostapd_eid_ht_capabilities(hapd
, pos
);
480 pos
= hostapd_eid_ht_operation(hapd
, pos
);
481 #endif /* CONFIG_IEEE80211N */
483 pos
= hostapd_eid_ext_capab(hapd
, pos
);
485 pos
= hostapd_eid_time_adv(hapd
, pos
);
486 pos
= hostapd_eid_time_zone(hapd
, pos
);
488 pos
= hostapd_eid_interworking(hapd
, pos
);
489 pos
= hostapd_eid_adv_proto(hapd
, pos
);
490 pos
= hostapd_eid_roaming_consortium(hapd
, pos
);
493 if (hapd
->iface
->fst_ies
) {
494 os_memcpy(pos
, wpabuf_head(hapd
->iface
->fst_ies
),
495 wpabuf_len(hapd
->iface
->fst_ies
));
496 pos
+= wpabuf_len(hapd
->iface
->fst_ies
);
498 #endif /* CONFIG_FST */
500 #ifdef CONFIG_IEEE80211AC
501 if (hapd
->iconf
->ieee80211ac
&& !hapd
->conf
->disable_11ac
) {
502 pos
= hostapd_eid_vht_capabilities(hapd
, pos
, 0);
503 pos
= hostapd_eid_vht_operation(hapd
, pos
);
504 pos
= hostapd_eid_txpower_envelope(hapd
, pos
);
505 pos
= hostapd_eid_wb_chsw_wrapper(hapd
, pos
);
507 #endif /* CONFIG_IEEE80211AC */
509 pos
= hostapd_eid_fils_indic(hapd
, pos
, 0);
511 #ifdef CONFIG_IEEE80211AX
512 if (hapd
->iconf
->ieee80211ax
) {
513 pos
= hostapd_eid_he_capab(hapd
, pos
);
514 pos
= hostapd_eid_he_operation(hapd
, pos
);
515 pos
= hostapd_eid_he_mu_edca_parameter_set(hapd
, pos
);
516 pos
= hostapd_eid_spatial_reuse(hapd
, pos
);
518 #endif /* CONFIG_IEEE80211AX */
520 #ifdef CONFIG_IEEE80211AC
521 if (hapd
->conf
->vendor_vht
)
522 pos
= hostapd_eid_vendor_vht(hapd
, pos
);
523 #endif /* CONFIG_IEEE80211AC */
526 if (hapd
->conf
->wpa
== WPA_PROTO_WPA
)
527 pos
= hostapd_eid_wpa(hapd
, pos
, epos
- pos
);
529 /* Wi-Fi Alliance WMM */
530 pos
= hostapd_eid_wmm(hapd
, pos
);
533 if (hapd
->conf
->wps_state
&& hapd
->wps_probe_resp_ie
) {
534 os_memcpy(pos
, wpabuf_head(hapd
->wps_probe_resp_ie
),
535 wpabuf_len(hapd
->wps_probe_resp_ie
));
536 pos
+= wpabuf_len(hapd
->wps_probe_resp_ie
);
538 #endif /* CONFIG_WPS */
541 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && is_p2p
&&
542 hapd
->p2p_probe_resp_ie
) {
543 os_memcpy(pos
, wpabuf_head(hapd
->p2p_probe_resp_ie
),
544 wpabuf_len(hapd
->p2p_probe_resp_ie
));
545 pos
+= wpabuf_len(hapd
->p2p_probe_resp_ie
);
547 #endif /* CONFIG_P2P */
548 #ifdef CONFIG_P2P_MANAGER
549 if ((hapd
->conf
->p2p
& (P2P_MANAGE
| P2P_ENABLED
| P2P_GROUP_OWNER
)) ==
551 pos
= hostapd_eid_p2p_manage(hapd
, pos
);
552 #endif /* CONFIG_P2P_MANAGER */
555 pos
= hostapd_eid_hs20_indication(hapd
, pos
);
556 pos
= hostapd_eid_osen(hapd
, pos
);
557 #endif /* CONFIG_HS20 */
559 pos
= hostapd_eid_mbo(hapd
, pos
, (u8
*) resp
+ buflen
- pos
);
560 pos
= hostapd_eid_owe_trans(hapd
, pos
, (u8
*) resp
+ buflen
- pos
);
562 if (hapd
->conf
->vendor_elements
) {
563 os_memcpy(pos
, wpabuf_head(hapd
->conf
->vendor_elements
),
564 wpabuf_len(hapd
->conf
->vendor_elements
));
565 pos
+= wpabuf_len(hapd
->conf
->vendor_elements
);
568 *resp_len
= pos
- (u8
*) resp
;
573 enum ssid_match_result
{
579 static enum ssid_match_result
ssid_match(struct hostapd_data
*hapd
,
580 const u8
*ssid
, size_t ssid_len
,
582 size_t ssid_list_len
)
589 if (ssid_len
== hapd
->conf
->ssid
.ssid_len
&&
590 os_memcmp(ssid
, hapd
->conf
->ssid
.ssid
, ssid_len
) == 0)
591 return EXACT_SSID_MATCH
;
593 if (ssid_list
== NULL
)
594 return wildcard
? WILDCARD_SSID_MATCH
: NO_SSID_MATCH
;
597 end
= ssid_list
+ ssid_list_len
;
598 while (end
- pos
>= 2) {
599 if (2 + pos
[1] > end
- pos
)
603 if (pos
[1] == hapd
->conf
->ssid
.ssid_len
&&
604 os_memcmp(pos
+ 2, hapd
->conf
->ssid
.ssid
, pos
[1]) == 0)
605 return EXACT_SSID_MATCH
;
609 return wildcard
? WILDCARD_SSID_MATCH
: NO_SSID_MATCH
;
613 void sta_track_expire(struct hostapd_iface
*iface
, int force
)
615 struct os_reltime now
;
616 struct hostapd_sta_info
*info
;
618 if (!iface
->num_sta_seen
)
621 os_get_reltime(&now
);
622 while ((info
= dl_list_first(&iface
->sta_seen
, struct hostapd_sta_info
,
625 !os_reltime_expired(&now
, &info
->last_seen
,
626 iface
->conf
->track_sta_max_age
))
630 wpa_printf(MSG_MSGDUMP
, "%s: Expire STA tracking entry for "
631 MACSTR
, iface
->bss
[0]->conf
->iface
,
632 MAC2STR(info
->addr
));
633 dl_list_del(&info
->list
);
634 iface
->num_sta_seen
--;
640 static struct hostapd_sta_info
* sta_track_get(struct hostapd_iface
*iface
,
643 struct hostapd_sta_info
*info
;
645 dl_list_for_each(info
, &iface
->sta_seen
, struct hostapd_sta_info
, list
)
646 if (os_memcmp(addr
, info
->addr
, ETH_ALEN
) == 0)
653 void sta_track_add(struct hostapd_iface
*iface
, const u8
*addr
, int ssi_signal
)
655 struct hostapd_sta_info
*info
;
657 info
= sta_track_get(iface
, addr
);
659 /* Move the most recent entry to the end of the list */
660 dl_list_del(&info
->list
);
661 dl_list_add_tail(&iface
->sta_seen
, &info
->list
);
662 os_get_reltime(&info
->last_seen
);
663 info
->ssi_signal
= ssi_signal
;
667 /* Add a new entry */
668 info
= os_zalloc(sizeof(*info
));
671 os_memcpy(info
->addr
, addr
, ETH_ALEN
);
672 os_get_reltime(&info
->last_seen
);
673 info
->ssi_signal
= ssi_signal
;
675 if (iface
->num_sta_seen
>= iface
->conf
->track_sta_max_num
) {
676 /* Expire oldest entry to make room for a new one */
677 sta_track_expire(iface
, 1);
680 wpa_printf(MSG_MSGDUMP
, "%s: Add STA tracking entry for "
681 MACSTR
, iface
->bss
[0]->conf
->iface
, MAC2STR(addr
));
682 dl_list_add_tail(&iface
->sta_seen
, &info
->list
);
683 iface
->num_sta_seen
++;
687 struct hostapd_data
*
688 sta_track_seen_on(struct hostapd_iface
*iface
, const u8
*addr
,
691 struct hapd_interfaces
*interfaces
= iface
->interfaces
;
694 for (i
= 0; i
< interfaces
->count
; i
++) {
695 struct hostapd_data
*hapd
= NULL
;
697 iface
= interfaces
->iface
[i
];
698 for (j
= 0; j
< iface
->num_bss
; j
++) {
699 hapd
= iface
->bss
[j
];
700 if (os_strcmp(ifname
, hapd
->conf
->iface
) == 0)
705 if (hapd
&& sta_track_get(iface
, addr
))
713 #ifdef CONFIG_TAXONOMY
714 void sta_track_claim_taxonomy_info(struct hostapd_iface
*iface
, const u8
*addr
,
715 struct wpabuf
**probe_ie_taxonomy
)
717 struct hostapd_sta_info
*info
;
719 info
= sta_track_get(iface
, addr
);
723 wpabuf_free(*probe_ie_taxonomy
);
724 *probe_ie_taxonomy
= info
->probe_ie_taxonomy
;
725 info
->probe_ie_taxonomy
= NULL
;
727 #endif /* CONFIG_TAXONOMY */
730 void handle_probe_req(struct hostapd_data
*hapd
,
731 const struct ieee80211_mgmt
*mgmt
, size_t len
,
735 struct ieee802_11_elems elems
;
740 enum ssid_match_result res
;
744 u32 session_timeout
, acct_interim_interval
;
745 struct vlan_description vlan_id
;
746 struct hostapd_sta_wpa_psk_short
*psk
= NULL
;
747 char *identity
= NULL
;
748 char *radius_cui
= NULL
;
750 if (len
< IEEE80211_HDRLEN
)
752 ie
= ((const u8
*) mgmt
) + IEEE80211_HDRLEN
;
753 if (hapd
->iconf
->track_sta_max_num
)
754 sta_track_add(hapd
->iface
, mgmt
->sa
, ssi_signal
);
755 ie_len
= len
- IEEE80211_HDRLEN
;
757 ret
= ieee802_11_allowed_address(hapd
, mgmt
->sa
, (const u8
*) mgmt
, len
,
759 &acct_interim_interval
, &vlan_id
,
760 &psk
, &identity
, &radius_cui
, 1);
761 if (ret
== HOSTAPD_ACL_REJECT
) {
762 wpa_msg(hapd
->msg_ctx
, MSG_DEBUG
,
763 "Ignore Probe Request frame from " MACSTR
764 " due to ACL reject ", MAC2STR(mgmt
->sa
));
768 for (i
= 0; hapd
->probereq_cb
&& i
< hapd
->num_probereq_cb
; i
++)
769 if (hapd
->probereq_cb
[i
].cb(hapd
->probereq_cb
[i
].ctx
,
770 mgmt
->sa
, mgmt
->da
, mgmt
->bssid
,
771 ie
, ie_len
, ssi_signal
) > 0)
774 if (!hapd
->conf
->send_probe_response
)
777 if (ieee802_11_parse_elems(ie
, ie_len
, &elems
, 0) == ParseFailed
) {
778 wpa_printf(MSG_DEBUG
, "Could not parse ProbeReq from " MACSTR
,
783 if ((!elems
.ssid
|| !elems
.supp_rates
)) {
784 wpa_printf(MSG_DEBUG
, "STA " MACSTR
" sent probe request "
785 "without SSID or supported rates element",
791 * No need to reply if the Probe Request frame was sent on an adjacent
792 * channel. IEEE Std 802.11-2012 describes this as a requirement for an
793 * AP with dot11RadioMeasurementActivated set to true, but strictly
794 * speaking does not allow such ignoring of Probe Request frames if
795 * dot11RadioMeasurementActivated is false. Anyway, this can help reduce
796 * number of unnecessary Probe Response frames for cases where the STA
797 * is less likely to see them (Probe Request frame sent on a
798 * neighboring, but partially overlapping, channel).
800 if (elems
.ds_params
&&
801 hapd
->iface
->current_mode
&&
802 (hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211G
||
803 hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211B
) &&
804 hapd
->iconf
->channel
!= elems
.ds_params
[0]) {
805 wpa_printf(MSG_DEBUG
,
806 "Ignore Probe Request due to DS Params mismatch: chan=%u != ds.chan=%u",
807 hapd
->iconf
->channel
, elems
.ds_params
[0]);
812 if (hapd
->p2p
&& hapd
->p2p_group
&& elems
.wps_ie
) {
814 wps
= ieee802_11_vendor_ie_concat(ie
, ie_len
, WPS_DEV_OUI_WFA
);
815 if (wps
&& !p2p_group_match_dev_type(hapd
->p2p_group
, wps
)) {
816 wpa_printf(MSG_MSGDUMP
, "P2P: Ignore Probe Request "
817 "due to mismatch with Requested Device "
825 if (hapd
->p2p
&& hapd
->p2p_group
&& elems
.p2p
) {
827 p2p
= ieee802_11_vendor_ie_concat(ie
, ie_len
, P2P_IE_VENDOR_TYPE
);
828 if (p2p
&& !p2p_group_match_dev_id(hapd
->p2p_group
, p2p
)) {
829 wpa_printf(MSG_MSGDUMP
, "P2P: Ignore Probe Request "
830 "due to mismatch with Device ID");
836 #endif /* CONFIG_P2P */
838 if (hapd
->conf
->ignore_broadcast_ssid
&& elems
.ssid_len
== 0 &&
839 elems
.ssid_list_len
== 0) {
840 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
" for "
841 "broadcast SSID ignored", MAC2STR(mgmt
->sa
));
846 if ((hapd
->conf
->p2p
& P2P_GROUP_OWNER
) &&
847 elems
.ssid_len
== P2P_WILDCARD_SSID_LEN
&&
848 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
,
849 P2P_WILDCARD_SSID_LEN
) == 0) {
850 /* Process P2P Wildcard SSID like Wildcard SSID */
853 #endif /* CONFIG_P2P */
855 #ifdef CONFIG_TAXONOMY
857 struct sta_info
*sta
;
858 struct hostapd_sta_info
*info
;
860 if ((sta
= ap_get_sta(hapd
, mgmt
->sa
)) != NULL
) {
861 taxonomy_sta_info_probe_req(hapd
, sta
, ie
, ie_len
);
862 } else if ((info
= sta_track_get(hapd
->iface
,
863 mgmt
->sa
)) != NULL
) {
864 taxonomy_hostapd_sta_info_probe_req(hapd
, info
,
868 #endif /* CONFIG_TAXONOMY */
870 res
= ssid_match(hapd
, elems
.ssid
, elems
.ssid_len
,
871 elems
.ssid_list
, elems
.ssid_list_len
);
872 if (res
== NO_SSID_MATCH
) {
873 if (!(mgmt
->da
[0] & 0x01)) {
874 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
875 " for foreign SSID '%s' (DA " MACSTR
")%s",
877 wpa_ssid_txt(elems
.ssid
, elems
.ssid_len
),
879 elems
.ssid_list
? " (SSID list)" : "");
884 #ifdef CONFIG_INTERWORKING
885 if (hapd
->conf
->interworking
&&
886 elems
.interworking
&& elems
.interworking_len
>= 1) {
887 u8 ant
= elems
.interworking
[0] & 0x0f;
888 if (ant
!= INTERWORKING_ANT_WILDCARD
&&
889 ant
!= hapd
->conf
->access_network_type
) {
890 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
891 " for mismatching ANT %u ignored",
892 MAC2STR(mgmt
->sa
), ant
);
897 if (hapd
->conf
->interworking
&& elems
.interworking
&&
898 (elems
.interworking_len
== 7 || elems
.interworking_len
== 9)) {
900 if (elems
.interworking_len
== 7)
901 hessid
= elems
.interworking
+ 1;
903 hessid
= elems
.interworking
+ 1 + 2;
904 if (!is_broadcast_ether_addr(hessid
) &&
905 os_memcmp(hessid
, hapd
->conf
->hessid
, ETH_ALEN
) != 0) {
906 wpa_printf(MSG_MSGDUMP
, "Probe Request from " MACSTR
907 " for mismatching HESSID " MACSTR
909 MAC2STR(mgmt
->sa
), MAC2STR(hessid
));
913 #endif /* CONFIG_INTERWORKING */
916 if ((hapd
->conf
->p2p
& P2P_GROUP_OWNER
) &&
917 supp_rates_11b_only(&elems
)) {
918 /* Indicates support for 11b rates only */
919 wpa_printf(MSG_EXCESSIVE
, "P2P: Ignore Probe Request from "
920 MACSTR
" with only 802.11b rates",
924 #endif /* CONFIG_P2P */
926 /* TODO: verify that supp_rates contains at least one matching rate
927 * with AP configuration */
929 if (hapd
->conf
->no_probe_resp_if_seen_on
&&
930 is_multicast_ether_addr(mgmt
->da
) &&
931 is_multicast_ether_addr(mgmt
->bssid
) &&
932 sta_track_seen_on(hapd
->iface
, mgmt
->sa
,
933 hapd
->conf
->no_probe_resp_if_seen_on
)) {
934 wpa_printf(MSG_MSGDUMP
, "%s: Ignore Probe Request from " MACSTR
935 " since STA has been seen on %s",
936 hapd
->conf
->iface
, MAC2STR(mgmt
->sa
),
937 hapd
->conf
->no_probe_resp_if_seen_on
);
941 if (hapd
->conf
->no_probe_resp_if_max_sta
&&
942 is_multicast_ether_addr(mgmt
->da
) &&
943 is_multicast_ether_addr(mgmt
->bssid
) &&
944 hapd
->num_sta
>= hapd
->conf
->max_num_sta
&&
945 !ap_get_sta(hapd
, mgmt
->sa
)) {
946 wpa_printf(MSG_MSGDUMP
, "%s: Ignore Probe Request from " MACSTR
947 " since no room for additional STA",
948 hapd
->conf
->iface
, MAC2STR(mgmt
->sa
));
952 #ifdef CONFIG_TESTING_OPTIONS
953 if (hapd
->iconf
->ignore_probe_probability
> 0.0 &&
954 drand48() < hapd
->iconf
->ignore_probe_probability
) {
956 "TESTING: ignoring probe request from " MACSTR
,
960 #endif /* CONFIG_TESTING_OPTIONS */
962 wpa_msg_ctrl(hapd
->msg_ctx
, MSG_INFO
, RX_PROBE_REQUEST
"sa=" MACSTR
963 " signal=%d", MAC2STR(mgmt
->sa
), ssi_signal
);
965 resp
= hostapd_gen_probe_resp(hapd
, mgmt
, elems
.p2p
!= NULL
,
971 * If this is a broadcast probe request, apply no ack policy to avoid
974 noack
= !!(res
== WILDCARD_SSID_MATCH
&&
975 is_broadcast_ether_addr(mgmt
->da
));
978 if (hapd
->csa_in_progress
) {
979 if (hapd
->cs_c_off_proberesp
)
980 csa_offs
[csa_offs_len
++] =
981 hapd
->cs_c_off_proberesp
;
983 if (hapd
->cs_c_off_ecsa_proberesp
)
984 csa_offs
[csa_offs_len
++] =
985 hapd
->cs_c_off_ecsa_proberesp
;
988 ret
= hostapd_drv_send_mlme_csa(hapd
, resp
, resp_len
, noack
,
989 csa_offs_len
? csa_offs
: NULL
,
993 wpa_printf(MSG_INFO
, "handle_probe_req: send failed");
997 wpa_printf(MSG_EXCESSIVE
, "STA " MACSTR
" sent probe request for %s "
998 "SSID", MAC2STR(mgmt
->sa
),
999 elems
.ssid_len
== 0 ? "broadcast" : "our");
1003 static u8
* hostapd_probe_resp_offloads(struct hostapd_data
*hapd
,
1006 /* check probe response offloading caps and print warnings */
1007 if (!(hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD
))
1011 if (hapd
->conf
->wps_state
&& hapd
->wps_probe_resp_ie
&&
1012 (!(hapd
->iface
->probe_resp_offloads
&
1013 (WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS
|
1014 WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2
))))
1015 wpa_printf(MSG_WARNING
, "Device is trying to offload WPS "
1016 "Probe Response while not supporting this");
1017 #endif /* CONFIG_WPS */
1020 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && hapd
->p2p_probe_resp_ie
&&
1021 !(hapd
->iface
->probe_resp_offloads
&
1022 WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P
))
1023 wpa_printf(MSG_WARNING
, "Device is trying to offload P2P "
1024 "Probe Response while not supporting this");
1025 #endif /* CONFIG_P2P */
1027 if (hapd
->conf
->interworking
&&
1028 !(hapd
->iface
->probe_resp_offloads
&
1029 WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING
))
1030 wpa_printf(MSG_WARNING
, "Device is trying to offload "
1031 "Interworking Probe Response while not supporting "
1034 /* Generate a Probe Response template for the non-P2P case */
1035 return hostapd_gen_probe_resp(hapd
, NULL
, 0, resp_len
);
1038 #endif /* NEED_AP_MLME */
1041 void sta_track_del(struct hostapd_sta_info
*info
)
1043 #ifdef CONFIG_TAXONOMY
1044 wpabuf_free(info
->probe_ie_taxonomy
);
1045 info
->probe_ie_taxonomy
= NULL
;
1046 #endif /* CONFIG_TAXONOMY */
1051 int ieee802_11_build_ap_params(struct hostapd_data
*hapd
,
1052 struct wpa_driver_ap_params
*params
)
1054 struct ieee80211_mgmt
*head
= NULL
;
1056 size_t head_len
= 0, tail_len
= 0;
1058 size_t resp_len
= 0;
1061 u8
*pos
, *tailpos
, *csa_pos
;
1063 #define BEACON_HEAD_BUF_SIZE 256
1064 #define BEACON_TAIL_BUF_SIZE 512
1065 head
= os_zalloc(BEACON_HEAD_BUF_SIZE
);
1066 tail_len
= BEACON_TAIL_BUF_SIZE
;
1068 if (hapd
->conf
->wps_state
&& hapd
->wps_beacon_ie
)
1069 tail_len
+= wpabuf_len(hapd
->wps_beacon_ie
);
1070 #endif /* CONFIG_WPS */
1072 if (hapd
->p2p_beacon_ie
)
1073 tail_len
+= wpabuf_len(hapd
->p2p_beacon_ie
);
1074 #endif /* CONFIG_P2P */
1076 if (hapd
->iface
->fst_ies
)
1077 tail_len
+= wpabuf_len(hapd
->iface
->fst_ies
);
1078 #endif /* CONFIG_FST */
1079 if (hapd
->conf
->vendor_elements
)
1080 tail_len
+= wpabuf_len(hapd
->conf
->vendor_elements
);
1082 #ifdef CONFIG_IEEE80211AC
1083 if (hapd
->conf
->vendor_vht
) {
1084 tail_len
+= 5 + 2 + sizeof(struct ieee80211_vht_capabilities
) +
1085 2 + sizeof(struct ieee80211_vht_operation
);
1087 #endif /* CONFIG_IEEE80211AC */
1089 #ifdef CONFIG_IEEE80211AX
1090 if (hapd
->iconf
->ieee80211ax
) {
1091 tail_len
+= 3 + sizeof(struct ieee80211_he_capabilities
) +
1092 3 + sizeof(struct ieee80211_he_operation
) +
1093 3 + sizeof(struct ieee80211_he_mu_edca_parameter_set
) +
1094 3 + sizeof(struct ieee80211_spatial_reuse
);
1096 #endif /* CONFIG_IEEE80211AX */
1098 tail_len
+= hostapd_mbo_ie_len(hapd
);
1099 tail_len
+= hostapd_eid_owe_trans_len(hapd
);
1101 tailpos
= tail
= os_malloc(tail_len
);
1102 if (head
== NULL
|| tail
== NULL
) {
1103 wpa_printf(MSG_ERROR
, "Failed to set beacon data");
1109 head
->frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
1110 WLAN_FC_STYPE_BEACON
);
1111 head
->duration
= host_to_le16(0);
1112 os_memset(head
->da
, 0xff, ETH_ALEN
);
1114 os_memcpy(head
->sa
, hapd
->own_addr
, ETH_ALEN
);
1115 os_memcpy(head
->bssid
, hapd
->own_addr
, ETH_ALEN
);
1116 head
->u
.beacon
.beacon_int
=
1117 host_to_le16(hapd
->iconf
->beacon_int
);
1119 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1120 capab_info
= hostapd_own_capab_info(hapd
);
1121 head
->u
.beacon
.capab_info
= host_to_le16(capab_info
);
1122 pos
= &head
->u
.beacon
.variable
[0];
1125 *pos
++ = WLAN_EID_SSID
;
1126 if (hapd
->conf
->ignore_broadcast_ssid
== 2) {
1127 /* clear the data, but keep the correct length of the SSID */
1128 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
1129 os_memset(pos
, 0, hapd
->conf
->ssid
.ssid_len
);
1130 pos
+= hapd
->conf
->ssid
.ssid_len
;
1131 } else if (hapd
->conf
->ignore_broadcast_ssid
) {
1132 *pos
++ = 0; /* empty SSID */
1134 *pos
++ = hapd
->conf
->ssid
.ssid_len
;
1135 os_memcpy(pos
, hapd
->conf
->ssid
.ssid
,
1136 hapd
->conf
->ssid
.ssid_len
);
1137 pos
+= hapd
->conf
->ssid
.ssid_len
;
1140 /* Supported rates */
1141 pos
= hostapd_eid_supp_rates(hapd
, pos
);
1144 pos
= hostapd_eid_ds_params(hapd
, pos
);
1146 head_len
= pos
- (u8
*) head
;
1148 tailpos
= hostapd_eid_country(hapd
, tailpos
,
1149 tail
+ BEACON_TAIL_BUF_SIZE
- tailpos
);
1151 /* Power Constraint element */
1152 tailpos
= hostapd_eid_pwr_constraint(hapd
, tailpos
);
1155 csa_pos
= hostapd_eid_csa(hapd
, tailpos
);
1156 if (csa_pos
!= tailpos
)
1157 hapd
->cs_c_off_beacon
= csa_pos
- tail
- 1;
1160 /* ERP Information element */
1161 tailpos
= hostapd_eid_erp_info(hapd
, tailpos
);
1163 /* Extended supported rates */
1164 tailpos
= hostapd_eid_ext_supp_rates(hapd
, tailpos
);
1167 if (hapd
->conf
->wpa
!= WPA_PROTO_WPA
)
1168 tailpos
= hostapd_eid_wpa(hapd
, tailpos
,
1169 tail
+ BEACON_TAIL_BUF_SIZE
-
1172 tailpos
= hostapd_eid_rm_enabled_capab(hapd
, tailpos
,
1173 tail
+ BEACON_TAIL_BUF_SIZE
-
1176 tailpos
= hostapd_eid_bss_load(hapd
, tailpos
,
1177 tail
+ BEACON_TAIL_BUF_SIZE
- tailpos
);
1180 csa_pos
= hostapd_eid_ecsa(hapd
, tailpos
);
1181 if (csa_pos
!= tailpos
)
1182 hapd
->cs_c_off_ecsa_beacon
= csa_pos
- tail
- 1;
1185 tailpos
= hostapd_eid_supported_op_classes(hapd
, tailpos
);
1187 #ifdef CONFIG_IEEE80211N
1188 /* Secondary Channel Offset element */
1189 /* TODO: The standard doesn't specify a position for this element. */
1190 tailpos
= hostapd_eid_secondary_channel(hapd
, tailpos
);
1192 tailpos
= hostapd_eid_ht_capabilities(hapd
, tailpos
);
1193 tailpos
= hostapd_eid_ht_operation(hapd
, tailpos
);
1194 #endif /* CONFIG_IEEE80211N */
1196 tailpos
= hostapd_eid_ext_capab(hapd
, tailpos
);
1199 * TODO: Time Advertisement element should only be included in some
1200 * DTIM Beacon frames.
1202 tailpos
= hostapd_eid_time_adv(hapd
, tailpos
);
1204 tailpos
= hostapd_eid_interworking(hapd
, tailpos
);
1205 tailpos
= hostapd_eid_adv_proto(hapd
, tailpos
);
1206 tailpos
= hostapd_eid_roaming_consortium(hapd
, tailpos
);
1209 if (hapd
->iface
->fst_ies
) {
1210 os_memcpy(tailpos
, wpabuf_head(hapd
->iface
->fst_ies
),
1211 wpabuf_len(hapd
->iface
->fst_ies
));
1212 tailpos
+= wpabuf_len(hapd
->iface
->fst_ies
);
1214 #endif /* CONFIG_FST */
1216 #ifdef CONFIG_IEEE80211AC
1217 if (hapd
->iconf
->ieee80211ac
&& !hapd
->conf
->disable_11ac
) {
1218 tailpos
= hostapd_eid_vht_capabilities(hapd
, tailpos
, 0);
1219 tailpos
= hostapd_eid_vht_operation(hapd
, tailpos
);
1220 tailpos
= hostapd_eid_txpower_envelope(hapd
, tailpos
);
1221 tailpos
= hostapd_eid_wb_chsw_wrapper(hapd
, tailpos
);
1223 #endif /* CONFIG_IEEE80211AC */
1225 tailpos
= hostapd_eid_fils_indic(hapd
, tailpos
, 0);
1227 #ifdef CONFIG_IEEE80211AX
1228 if (hapd
->iconf
->ieee80211ax
) {
1229 tailpos
= hostapd_eid_he_capab(hapd
, tailpos
);
1230 tailpos
= hostapd_eid_he_operation(hapd
, tailpos
);
1231 tailpos
= hostapd_eid_he_mu_edca_parameter_set(hapd
, tailpos
);
1232 tailpos
= hostapd_eid_spatial_reuse(hapd
, tailpos
);
1234 #endif /* CONFIG_IEEE80211AX */
1236 #ifdef CONFIG_IEEE80211AC
1237 if (hapd
->conf
->vendor_vht
)
1238 tailpos
= hostapd_eid_vendor_vht(hapd
, tailpos
);
1239 #endif /* CONFIG_IEEE80211AC */
1242 if (hapd
->conf
->wpa
== WPA_PROTO_WPA
)
1243 tailpos
= hostapd_eid_wpa(hapd
, tailpos
,
1244 tail
+ BEACON_TAIL_BUF_SIZE
-
1247 /* Wi-Fi Alliance WMM */
1248 tailpos
= hostapd_eid_wmm(hapd
, tailpos
);
1251 if (hapd
->conf
->wps_state
&& hapd
->wps_beacon_ie
) {
1252 os_memcpy(tailpos
, wpabuf_head(hapd
->wps_beacon_ie
),
1253 wpabuf_len(hapd
->wps_beacon_ie
));
1254 tailpos
+= wpabuf_len(hapd
->wps_beacon_ie
);
1256 #endif /* CONFIG_WPS */
1259 if ((hapd
->conf
->p2p
& P2P_ENABLED
) && hapd
->p2p_beacon_ie
) {
1260 os_memcpy(tailpos
, wpabuf_head(hapd
->p2p_beacon_ie
),
1261 wpabuf_len(hapd
->p2p_beacon_ie
));
1262 tailpos
+= wpabuf_len(hapd
->p2p_beacon_ie
);
1264 #endif /* CONFIG_P2P */
1265 #ifdef CONFIG_P2P_MANAGER
1266 if ((hapd
->conf
->p2p
& (P2P_MANAGE
| P2P_ENABLED
| P2P_GROUP_OWNER
)) ==
1268 tailpos
= hostapd_eid_p2p_manage(hapd
, tailpos
);
1269 #endif /* CONFIG_P2P_MANAGER */
1272 tailpos
= hostapd_eid_hs20_indication(hapd
, tailpos
);
1273 tailpos
= hostapd_eid_osen(hapd
, tailpos
);
1274 #endif /* CONFIG_HS20 */
1276 tailpos
= hostapd_eid_mbo(hapd
, tailpos
, tail
+ tail_len
- tailpos
);
1277 tailpos
= hostapd_eid_owe_trans(hapd
, tailpos
,
1278 tail
+ tail_len
- tailpos
);
1280 if (hapd
->conf
->vendor_elements
) {
1281 os_memcpy(tailpos
, wpabuf_head(hapd
->conf
->vendor_elements
),
1282 wpabuf_len(hapd
->conf
->vendor_elements
));
1283 tailpos
+= wpabuf_len(hapd
->conf
->vendor_elements
);
1286 tail_len
= tailpos
> tail
? tailpos
- tail
: 0;
1288 resp
= hostapd_probe_resp_offloads(hapd
, &resp_len
);
1289 #endif /* NEED_AP_MLME */
1291 os_memset(params
, 0, sizeof(*params
));
1292 params
->head
= (u8
*) head
;
1293 params
->head_len
= head_len
;
1294 params
->tail
= tail
;
1295 params
->tail_len
= tail_len
;
1296 params
->proberesp
= resp
;
1297 params
->proberesp_len
= resp_len
;
1298 params
->dtim_period
= hapd
->conf
->dtim_period
;
1299 params
->beacon_int
= hapd
->iconf
->beacon_int
;
1300 params
->basic_rates
= hapd
->iface
->basic_rates
;
1301 params
->beacon_rate
= hapd
->iconf
->beacon_rate
;
1302 params
->rate_type
= hapd
->iconf
->rate_type
;
1303 params
->ssid
= hapd
->conf
->ssid
.ssid
;
1304 params
->ssid_len
= hapd
->conf
->ssid
.ssid_len
;
1305 if ((hapd
->conf
->wpa
& (WPA_PROTO_WPA
| WPA_PROTO_RSN
)) ==
1306 (WPA_PROTO_WPA
| WPA_PROTO_RSN
))
1307 params
->pairwise_ciphers
= hapd
->conf
->wpa_pairwise
|
1308 hapd
->conf
->rsn_pairwise
;
1309 else if (hapd
->conf
->wpa
& WPA_PROTO_RSN
)
1310 params
->pairwise_ciphers
= hapd
->conf
->rsn_pairwise
;
1311 else if (hapd
->conf
->wpa
& WPA_PROTO_WPA
)
1312 params
->pairwise_ciphers
= hapd
->conf
->wpa_pairwise
;
1313 params
->group_cipher
= hapd
->conf
->wpa_group
;
1314 params
->key_mgmt_suites
= hapd
->conf
->wpa_key_mgmt
;
1315 params
->auth_algs
= hapd
->conf
->auth_algs
;
1316 params
->wpa_version
= hapd
->conf
->wpa
;
1317 params
->privacy
= hapd
->conf
->ssid
.wep
.keys_set
|| hapd
->conf
->wpa
||
1318 (hapd
->conf
->ieee802_1x
&&
1319 (hapd
->conf
->default_wep_key_len
||
1320 hapd
->conf
->individual_wep_key_len
));
1321 switch (hapd
->conf
->ignore_broadcast_ssid
) {
1323 params
->hide_ssid
= NO_SSID_HIDING
;
1326 params
->hide_ssid
= HIDDEN_SSID_ZERO_LEN
;
1329 params
->hide_ssid
= HIDDEN_SSID_ZERO_CONTENTS
;
1332 params
->isolate
= hapd
->conf
->isolate
;
1333 params
->smps_mode
= hapd
->iconf
->ht_capab
& HT_CAP_INFO_SMPS_MASK
;
1335 params
->cts_protect
= !!(ieee802_11_erp_info(hapd
) &
1336 ERP_INFO_USE_PROTECTION
);
1337 params
->preamble
= hapd
->iface
->num_sta_no_short_preamble
== 0 &&
1338 hapd
->iconf
->preamble
== SHORT_PREAMBLE
;
1339 if (hapd
->iface
->current_mode
&&
1340 hapd
->iface
->current_mode
->mode
== HOSTAPD_MODE_IEEE80211G
)
1341 params
->short_slot_time
=
1342 hapd
->iface
->num_sta_no_short_slot_time
> 0 ? 0 : 1;
1344 params
->short_slot_time
= -1;
1345 if (!hapd
->iconf
->ieee80211n
|| hapd
->conf
->disable_11n
)
1346 params
->ht_opmode
= -1;
1348 params
->ht_opmode
= hapd
->iface
->ht_op_mode
;
1349 #endif /* NEED_AP_MLME */
1350 params
->interworking
= hapd
->conf
->interworking
;
1351 if (hapd
->conf
->interworking
&&
1352 !is_zero_ether_addr(hapd
->conf
->hessid
))
1353 params
->hessid
= hapd
->conf
->hessid
;
1354 params
->access_network_type
= hapd
->conf
->access_network_type
;
1355 params
->ap_max_inactivity
= hapd
->conf
->ap_max_inactivity
;
1357 params
->p2p_go_ctwindow
= hapd
->iconf
->p2p_go_ctwindow
;
1358 #endif /* CONFIG_P2P */
1360 params
->disable_dgaf
= hapd
->conf
->disable_dgaf
;
1361 if (hapd
->conf
->osen
) {
1362 params
->privacy
= 1;
1365 #endif /* CONFIG_HS20 */
1366 params
->multicast_to_unicast
= hapd
->conf
->multicast_to_unicast
;
1367 params
->pbss
= hapd
->conf
->pbss
;
1369 if (hapd
->conf
->ftm_responder
) {
1370 if (hapd
->iface
->drv_flags
& WPA_DRIVER_FLAGS_FTM_RESPONDER
) {
1371 params
->ftm_responder
= 1;
1372 params
->lci
= hapd
->iface
->conf
->lci
;
1373 params
->civic
= hapd
->iface
->conf
->civic
;
1375 wpa_printf(MSG_WARNING
,
1376 "Not configuring FTM responder as the driver doesn't advertise support for it");
1384 void ieee802_11_free_ap_params(struct wpa_driver_ap_params
*params
)
1386 os_free(params
->tail
);
1387 params
->tail
= NULL
;
1388 os_free(params
->head
);
1389 params
->head
= NULL
;
1390 os_free(params
->proberesp
);
1391 params
->proberesp
= NULL
;
1395 int ieee802_11_set_beacon(struct hostapd_data
*hapd
)
1397 struct wpa_driver_ap_params params
;
1398 struct hostapd_freq_params freq
;
1399 struct hostapd_iface
*iface
= hapd
->iface
;
1400 struct hostapd_config
*iconf
= iface
->conf
;
1401 struct wpabuf
*beacon
, *proberesp
, *assocresp
;
1404 if (hapd
->csa_in_progress
) {
1405 wpa_printf(MSG_ERROR
, "Cannot set beacons during CSA period");
1409 hapd
->beacon_set_done
= 1;
1411 if (ieee802_11_build_ap_params(hapd
, ¶ms
) < 0)
1414 if (hostapd_build_ap_extra_ies(hapd
, &beacon
, &proberesp
, &assocresp
) <
1418 params
.beacon_ies
= beacon
;
1419 params
.proberesp_ies
= proberesp
;
1420 params
.assocresp_ies
= assocresp
;
1421 params
.reenable
= hapd
->reenable_beacon
;
1422 hapd
->reenable_beacon
= 0;
1424 if (iface
->current_mode
&&
1425 hostapd_set_freq_params(&freq
, iconf
->hw_mode
, iface
->freq
,
1426 iconf
->channel
, iconf
->ieee80211n
,
1427 iconf
->ieee80211ac
, iconf
->ieee80211ax
,
1428 iconf
->secondary_channel
,
1429 hostapd_get_oper_chwidth(iconf
),
1430 hostapd_get_oper_centr_freq_seg0_idx(iconf
),
1431 hostapd_get_oper_centr_freq_seg1_idx(iconf
),
1432 iface
->current_mode
->vht_capab
,
1433 &iface
->current_mode
->he_capab
) == 0)
1434 params
.freq
= &freq
;
1436 res
= hostapd_drv_set_ap(hapd
, ¶ms
);
1437 hostapd_free_ap_extra_ies(hapd
, beacon
, proberesp
, assocresp
);
1439 wpa_printf(MSG_ERROR
, "Failed to set beacon parameters");
1443 ieee802_11_free_ap_params(¶ms
);
1448 int ieee802_11_set_beacons(struct hostapd_iface
*iface
)
1453 for (i
= 0; i
< iface
->num_bss
; i
++) {
1454 if (iface
->bss
[i
]->started
&&
1455 ieee802_11_set_beacon(iface
->bss
[i
]) < 0)
1463 /* only update beacons if started */
1464 int ieee802_11_update_beacons(struct hostapd_iface
*iface
)
1469 for (i
= 0; i
< iface
->num_bss
; i
++) {
1470 if (iface
->bss
[i
]->beacon_set_done
&& iface
->bss
[i
]->started
&&
1471 ieee802_11_set_beacon(iface
->bss
[i
]) < 0)
1478 #endif /* CONFIG_NATIVE_WINDOWS */