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mac80211: dynamically enable the TWT requester support on STA interfaces 

Turn TWT for STA interfaces when they associate and/or receive a
beacon where the twt_responder bit has changed.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
John Crispin 2019-05-28 13:49:47 +02:00 committed by Johannes Berg
parent 901bb98918
commit c9d3245e03
2 changed files with 18 additions and 2 deletions
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2
include/net/mac80211.h
View File

@ -317,6 +317,7 @@ struct ieee80211_vif_chanctx_switch {
* @BSS_CHANGED_MCAST_RATE: Multicast Rate setting changed for this interface
* @BSS_CHANGED_FTM_RESPONDER: fime timing reasurement request responder
* functionality changed for this BSS (AP mode).
* @BSS_CHANGED_TWT: TWT status changed
*
*/
enum ieee80211_bss_change {
@ -347,6 +348,7 @@ enum ieee80211_bss_change {
BSS_CHANGED_KEEP_ALIVE = 1<<24,
BSS_CHANGED_MCAST_RATE = 1<<25,
BSS_CHANGED_FTM_RESPONDER = 1<<26,
BSS_CHANGED_TWT = 1<<27,
/* when adding here, make sure to change ieee80211_reconfig */
};

18
net/mac80211/mlme.c
View File

@ -3148,6 +3148,19 @@ static bool ieee80211_twt_req_supported(const struct sta_info *sta,
IEEE80211_HE_MAC_CAP0_TWT_RES;
}
static int ieee80211_recalc_twt_req(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta,
struct ieee802_11_elems *elems)
{
bool twt = ieee80211_twt_req_supported(sta, elems);
if (sdata->vif.bss_conf.twt_requester != twt) {
sdata->vif.bss_conf.twt_requester = twt;
return BSS_CHANGED_TWT;
}
return 0;
}
static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss,
struct ieee80211_mgmt *mgmt, size_t len)
@ -3330,8 +3343,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
sta);
bss_conf->he_support = sta->sta.he_cap.has_he;
bss_conf->twt_requester =
ieee80211_twt_req_supported(sta, &elems);
changed |= ieee80211_recalc_twt_req(sdata, sta, &elems);
} else {
bss_conf->he_support = false;
bss_conf->twt_requester = false;
@ -3991,6 +4003,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, bssid);
changed |= ieee80211_recalc_twt_req(sdata, sta, &elems);
if (ieee80211_config_bw(sdata, sta,
elems.ht_cap_elem, elems.ht_operation,
elems.vht_operation, elems.he_operation,