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Remove PSMP option from ht_capab

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This was used to fill in the "PSMP support" subfield that was defined
during P802.11n development. However, this subfield was marked reserved
in the published IEEE Std 802.11n-2009 and it is not supported by
current drivers that use hostapd for SME either. As such, there is not
much point in maintaining this field as ht_capab parameter within
hostapd either.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2014-04-07 22:02:14 +03:00 committed by Jouni Malinen
parent 4a16a0bd55
commit 1dde5b5cdd
4 changed files with 1 additions and 10 deletions
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2
hostapd/config_file.c
View file

@ -1069,8 +1069,6 @@ static int hostapd_config_ht_capab(struct hostapd_config *conf,
conf->ht_capab |= HT_CAP_INFO_MAX_AMSDU_SIZE;
if (os_strstr(capab, "[DSSS_CCK-40]"))
conf->ht_capab |= HT_CAP_INFO_DSSS_CCK40MHZ;
if (os_strstr(capab, "[PSMP]"))
conf->ht_capab |= HT_CAP_INFO_PSMP_SUPP;
if (os_strstr(capab, "[40-INTOLERANT]"))
conf->ht_capab |= HT_CAP_INFO_40MHZ_INTOLERANT;
if (os_strstr(capab, "[LSIG-TXOP-PROT]"))

1
hostapd/hostapd.conf
View file

@ -480,7 +480,6 @@ wmm_ac_vo_acm=0
# Maximum A-MSDU length: [MAX-AMSDU-7935] for 7935 octets (3839 octets if not
# set)
# DSSS/CCK Mode in 40 MHz: [DSSS_CCK-40] = allowed (not allowed if not set)
# PSMP support: [PSMP] (disabled if not set)
# 40 MHz intolerant [40-INTOLERANT] (not advertised if not set)
# L-SIG TXOP protection support: [LSIG-TXOP-PROT] (disabled if not set)
#ht_capab=[HT40-][SHORT-GI-20][SHORT-GI-40]

6
src/ap/hw_features.c
View file

@ -679,12 +679,6 @@ static int ieee80211n_supported_ht_capab(struct hostapd_iface *iface)
return 0;
}
if ((conf & HT_CAP_INFO_PSMP_SUPP) && !(hw & HT_CAP_INFO_PSMP_SUPP)) {
wpa_printf(MSG_ERROR, "Driver does not support configured "
"HT capability [PSMP]");
return 0;
}
if ((conf & HT_CAP_INFO_LSIG_TXOP_PROTECT_SUPPORT) &&
!(hw & HT_CAP_INFO_LSIG_TXOP_PROTECT_SUPPORT)) {
wpa_printf(MSG_ERROR, "Driver does not support configured "

2
src/common/ieee802_11_defs.h
View file

@ -658,7 +658,7 @@ struct ieee80211_vht_operation {
#define HT_CAP_INFO_DELAYED_BA ((u16) BIT(10))
#define HT_CAP_INFO_MAX_AMSDU_SIZE ((u16) BIT(11))
#define HT_CAP_INFO_DSSS_CCK40MHZ ((u16) BIT(12))
#define HT_CAP_INFO_PSMP_SUPP ((u16) BIT(13))
/* B13 - Reserved (was PSMP support during P802.11n development) */
#define HT_CAP_INFO_40MHZ_INTOLERANT ((u16) BIT(14))
#define HT_CAP_INFO_LSIG_TXOP_PROTECT_SUPPORT ((u16) BIT(15))