refactor cliprdr, not tested on windows yet

libs/hbb_common/src/config.rs

@@ -139,6 +139,8 @@ pub struct PeerConfig {
     pub disable_audio: bool,
     #[serde(default)]
     pub disable_clipboard: bool,
+    #[serde(default)]
+    pub enable_file_transfer: bool,
 
     // the other scalar value must before this
     #[serde(default)]

libs/hbb_common/src/udp.rs

@@ -84,7 +84,7 @@ impl FramedSocket {
         let _ = match self {
             Self::Direct(f) => match addr {
                 TargetAddr::Ip(addr) => f.send((send_data, addr)).await?,
-                _ => unreachable!(),
+                _ => {}
             },
             Self::ProxySocks(f) => f.send((send_data, addr)).await?,
         };
@@ -103,7 +103,7 @@ impl FramedSocket {
         let _ = match self {
             Self::Direct(f) => match addr {
                 TargetAddr::Ip(addr) => f.send((Bytes::from(msg), addr)).await?,
-                _ => unreachable!(),
+                _ => {}
             },
             Self::ProxySocks(f) => f.send((Bytes::from(msg), addr)).await?,
         };