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mbssid: Add MBSSID Configuration element

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Add Multiple BSSID Configuration element data per IEEE Std
802.11ax-2021, 9.4.2.260 when enhanced multiple BSSID advertisement
(EMA) is enabled. This element informs the stations about the EMA
profile periodicity of the multiple BSSID set.

Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
This commit is contained in:
Aloka Dixit 2022-11-30 19:18:40 -08:00 committed by Jouni Malinen
parent fc2e4bac5a
commit 15690faada
2 changed files with 23 additions and 0 deletions
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22
src/ap/beacon.c
View file

@ -512,6 +512,23 @@ fail:
}
static u8 * hostapd_eid_mbssid_config(struct hostapd_data *hapd, u8 *eid,
u8 mbssid_elem_count)
{
struct hostapd_iface *iface = hapd->iface;
if (iface->conf->mbssid == ENHANCED_MBSSID_ENABLED) {
*eid++ = WLAN_EID_EXTENSION;
*eid++ = 3;
*eid++ = WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION;
*eid++ = iface->num_bss;
*eid++ = mbssid_elem_count;
}
return eid;
}
static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
const struct ieee80211_mgmt *req,
int is_p2p, size_t *resp_len,
@ -1635,6 +1652,9 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
}
#endif /* CONFIG_IEEE80211BE */
if (hapd->iconf->mbssid == ENHANCED_MBSSID_ENABLED &&
hapd == hostapd_mbssid_get_tx_bss(hapd))
tail_len += 5; /* Multiple BSSID Configuration element */
tail_len += hostapd_eid_rnr_len(hapd, WLAN_FC_STYPE_BEACON);
tail_len += hostapd_mbo_ie_len(hapd);
tail_len += hostapd_eid_owe_trans_len(hapd);
@ -1774,6 +1794,8 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
tailpos = hostapd_eid_rnr(hapd, tailpos, WLAN_FC_STYPE_BEACON);
tailpos = hostapd_eid_fils_indic(hapd, tailpos, 0);
tailpos = hostapd_get_rsnxe(hapd, tailpos, tailend - tailpos);
tailpos = hostapd_eid_mbssid_config(hapd, tailpos,
params->mbssid_elem_count);
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax && !hapd->conf->disable_11ax) {

1
src/common/ieee802_11_defs.h
View file

@ -481,6 +481,7 @@
#define WLAN_EID_EXT_SPATIAL_REUSE 39
#define WLAN_EID_EXT_COLOR_CHANGE_ANNOUNCEMENT 42
#define WLAN_EID_EXT_OCV_OCI 54
#define WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION 55
#define WLAN_EID_EXT_NON_INHERITANCE 56
#define WLAN_EID_EXT_SHORT_SSID_LIST 58
#define WLAN_EID_EXT_HE_6GHZ_BAND_CAP 59