hostapd: use wpa_supplicant for unencrypted mesh connections

It's more reliable than using iw

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

package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh

@@ -1033,7 +1033,7 @@ mac80211_setup_vif() {
 		mesh)
 			wireless_vif_parse_encryption
 			[ -z "$htmode" ] && htmode="NOHT";
-			if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
+			if wpa_supplicant -vmesh || [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
 				mac80211_setup_supplicant $vif_enable || failed=1
 			else
 				mac80211_setup_mesh $vif_enable

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

@@ -1322,7 +1322,7 @@ wpa_supplicant_add_network() {
 	}
 
 	[ "$_w_mode" = "mesh" ] && {
-		json_get_vars mesh_id mesh_fwding mesh_rssi_threshold
+		json_get_vars mesh_id mesh_fwding mesh_rssi_threshold encryption
 		[ -n "$mesh_id" ] && ssid="${mesh_id}"
 
 		append network_data "mode=5" "$N$T"
@@ -1330,7 +1330,7 @@ wpa_supplicant_add_network() {
 		[ -n "$mesh_rssi_threshold" ] && append network_data "mesh_rssi_threshold=${mesh_rssi_threshold}" "$N$T"
 		[ -n "$freq" ] && wpa_supplicant_set_fixed_freq "$freq" "$htmode"
 		[ "$noscan" = "1" ] && append network_data "noscan=1" "$N$T"
-		append wpa_key_mgmt "SAE"
+		[ "$encryption" = "none" -o -z "$encryption" ] || append wpa_key_mgmt "SAE"
 		scan_ssid=""
 	}
 

package/network/services/hostapd/src/src/utils/build_features.h

@@ -58,6 +58,10 @@ static inline int has_feature(const char *feat)
 #ifdef CONFIG_OCV
 	if (!strcmp(feat, "ocv"))
 		return 1;
+#endif
+#ifdef CONFIG_MESH
+	if (!strcmp(feat, "mesh"))
+		return 1;
 #endif
 	return 0;
 }