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hostapd: Add VHT PHY selector if VHT is required

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If VHT is required, add the VHT PHY selector to
the (extended) supported rates IE.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-11-24 17:27:16 +02:00 committed by Jouni Malinen
parent bff954e9a2
commit 202d97d477
2 changed files with 24 additions and 5 deletions
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28
src/ap/ieee802_11.c
View file

@ -49,6 +49,8 @@ u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid)
num = hapd->iface->num_rates;
if (hapd->iconf->ieee80211n && hapd->iconf->require_ht)
num++;
if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht)
num++;
if (num > 8) {
/* rest of the rates are encoded in Extended supported
* rates element */
@ -66,9 +68,15 @@ u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid)
pos++;
}
if (hapd->iconf->ieee80211n && hapd->iconf->require_ht &&
hapd->iface->num_rates < 8)
if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && count < 8) {
count++;
*pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY;
}
if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && count < 8) {
count++;
*pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY;
}
return pos;
}
@ -85,6 +93,8 @@ u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid)
num = hapd->iface->num_rates;
if (hapd->iconf->ieee80211n && hapd->iconf->require_ht)
num++;
if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht)
num++;
if (num <= 8)
return eid;
num -= 8;
@ -103,9 +113,17 @@ u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid)
pos++;
}
if (hapd->iconf->ieee80211n && hapd->iconf->require_ht &&
hapd->iface->num_rates >= 8)
*pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY;
if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) {
count++;
if (count > 8)
*pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY;
}
if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) {
count++;
if (count > 8)
*pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY;
}
return pos;
}

1
src/common/ieee802_11_defs.h
View file

@ -671,6 +671,7 @@ struct ieee80211_vht_operation {
#define HT_INFO_STBC_PARAM_PCO_ACTIVE ((u16) BIT(10))
#define HT_INFO_STBC_PARAM_PCO_PHASE ((u16) BIT(11))
#define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
#define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
/* VHT Defines */