support txt/srv record

easytier/src/connector/mod.rs

@@ -21,6 +21,7 @@ pub mod direct;
 pub mod manual;
 pub mod udp_hole_punch;
 
+pub mod dns_connector;
 pub mod http_connector;
 
 async fn set_bind_addr_for_peer_connector(
@@ -140,6 +141,10 @@ pub async fn create_connector_by_url(
             }
             return Ok(Box::new(connector));
         }
+        "txt" | "srv" => {
+            let connector = dns_connector::DNSTunnelConnector::new(url, global_ctx.clone());
+            return Ok(Box::new(connector));
+        }
         _ => {
             return Err(Error::InvalidUrl(url.into()));
         }