FHSS: prevent unicast on broadcast channel in tx handle

Author: Jarkko Paso

source/Service_Libs/fhss/fhss_ws.c

@@ -365,9 +365,13 @@ static int fhss_ws_tx_handle_callback(const fhss_api_t *api, bool is_broadcast_a
     if (!fhss_structure) {
         return -1;
     }
-    if (is_broadcast_addr || (fhss_structure->ws->is_on_bc_channel == true)) {
+    if (is_broadcast_addr) {
         return 0;
     }
+    // Do not allow unicast destination on broadcast channel
+    if (!is_broadcast_addr && (fhss_structure->ws->is_on_bc_channel == true)) {
+        return -1;
+    }
     // Check TX/RX slot
     if (!fhss_ws_check_tx_allowed(fhss_structure)) {
         return -1;