hostapd: add support for configuring rts threshold

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/network/services/hostapd/files/hostapd.sh

@@ -99,6 +99,7 @@ hostapd_common_add_device_config() {
 	config_add_string require_mode
 	config_add_boolean legacy_rates
 	config_add_int cell_density
+	config_add_int rts_threshold
 
 	config_add_string acs_chan_bias
 	config_add_array hostapd_options
@@ -115,7 +116,8 @@ hostapd_prepare_device_config() {
 	local base_cfg=
 
 	json_get_vars country country_ie beacon_int:100 dtim_period:2 doth require_mode legacy_rates \
-		acs_chan_bias local_pwr_constraint spectrum_mgmt_required airtime_mode cell_density
+		acs_chan_bias local_pwr_constraint spectrum_mgmt_required airtime_mode cell_density \
+		rts_threshold
 
 	hostapd_set_log_options base_cfg
 
@@ -209,6 +211,7 @@ hostapd_prepare_device_config() {
 	[ -n "$rlist" ] && append base_cfg "supported_rates=$rlist" "$N"
 	[ -n "$brlist" ] && append base_cfg "basic_rates=$brlist" "$N"
 	append base_cfg "beacon_int=$beacon_int" "$N"
+	[ -n "$rts_threshold" ] && append base_cfg "rts_threshold=$rts_threshold" "$N"
 	append base_cfg "dtim_period=$dtim_period" "$N"
 	[ "$airtime_mode" -gt 0 ] && append base_cfg "airtime_mode=$airtime_mode" "$N"