Commit c9d3245e authored by John Crispin's avatar John Crispin Committed by Johannes Berg
Browse files

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: default avatarShashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: default avatarJohn Crispin <john@phrozen.org>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 901bb989

include/net/mac80211.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */

};

net/mac80211/mlme.c

+16 −2
Original line number Diff line number Diff line
@@ -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,

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