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mac80211/cfg80211: HT capabilities for NEW_STA 

Allow userspace (e.g., hostapd) to set HT capabilities for associated
STAs. This is based on a patch from Zhu Yi <yi.zhu@intel.com> (only
the NL80211_ATTR_HT_CAPABILITY for NEW_STA part is included here).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen 2008-08-25 11:58:58 +03:00 committed by John W. Linville
parent 7262d59366
commit 36aedc903e
4 changed files with 28 additions and 0 deletions
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12
include/linux/nl80211.h
View File

@ -207,6 +207,9 @@ enum nl80211_commands {
* @NL80211_ATTR_BSS_SHORT_SLOT_TIME: whether short slot time enabled
* (u8, 0 or 1)
*
* @NL80211_ATTR_HT_CAPABILITY: HT Capability information element (from
* association request when used with NL80211_CMD_NEW_STATION)
*
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@ -254,16 +257,25 @@ enum nl80211_attrs {
NL80211_ATTR_BSS_SHORT_PREAMBLE,
NL80211_ATTR_BSS_SHORT_SLOT_TIME,
NL80211_ATTR_HT_CAPABILITY,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
};
/*
* Allow user space programs to use #ifdef on new attributes by defining them
* here
*/
#define NL80211_ATTR_HT_CAPABILITY NL80211_ATTR_HT_CAPABILITY
#define NL80211_MAX_SUPP_RATES 32
#define NL80211_TKIP_DATA_OFFSET_ENCR_KEY 0
#define NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY 16
#define NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY 24
#define NL80211_HT_CAPABILITY_LEN 26
/**
* enum nl80211_iftype - (virtual) interface types

1
include/net/cfg80211.h
View File

@ -152,6 +152,7 @@ struct station_parameters {
u16 aid;
u8 supported_rates_len;
u8 plink_action;
struct ieee80211_ht_cap *ht_capa;
};
/**

5
net/mac80211/cfg.c
View File

@ -674,6 +674,11 @@ static void sta_apply_parameters(struct ieee80211_local *local,
sta->supp_rates[local->oper_channel->band] = rates;
}
if (params->ht_capa) {
ieee80211_ht_cap_ie_to_ht_info(params->ht_capa,
&sta->ht_info);
}
if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
switch (params->plink_action) {
case PLINK_ACTION_OPEN:

10
net/wireless/nl80211.c
View File

@ -91,6 +91,9 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
[NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
[NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
[NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
.len = NL80211_HT_CAPABILITY_LEN },
};
/* message building helper */
@ -1129,6 +1132,10 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
params.listen_interval =
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
params.ht_capa =
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
&params.station_flags))
return -EINVAL;
@ -1192,6 +1199,9 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
params.listen_interval =
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
params.ht_capa =
nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
&params.station_flags))