dns: unexport connection type

Since the caches and forwarding now is handled internally, and Request
has been unexported, there is no need for exporting the connection type
anymore.

3 files changed, 16 insertions, 16 deletions

diff --git a/lib/dns/dns.go b/lib/dns/dns.go
index 450709a6..064bf9d3 100644
--- a/lib/dns/dns.go
+++ b/lib/dns/dns.go
@@ -62,20 +62,20 @@ var (
 	clientTimeout = 6 * time.Second //nolint: gochecknoglobals
 )
 
-type ConnType byte
+type connType byte
 
 // List of known connection type.
 const (
-	ConnTypeUDP ConnType = 1 << iota
-	ConnTypeTCP
-	ConnTypeDoH
+	connTypeUDP connType = 1 << iota
+	connTypeTCP
+	connTypeDoH
 )
 
-// ConnTypeNames contains a mapping between connection type and its name.
-var ConnTypeNames = map[ConnType]string{ //nolint: gochecknoglobals
-	ConnTypeUDP: "UDP",
-	ConnTypeTCP: "TCP",
-	ConnTypeDoH: "DoH",
+// connTypeNames contains a mapping between connection type and its name.
+var connTypeNames = map[connType]string{ //nolint: gochecknoglobals
+	connTypeUDP: "UDP",
+	connTypeTCP: "TCP",
+	connTypeDoH: "DoH",
 }
 
 // OpCode define a custom type for DNS header operation code.
diff --git a/lib/dns/request.go b/lib/dns/request.go
index a5e6d4c9..4cc210b7 100644
--- a/lib/dns/request.go
+++ b/lib/dns/request.go
@@ -20,7 +20,7 @@ import (
 type request struct {
 	// Kind define the connection type that this request is belong to,
 	// e.g. UDP, TCP, or DoH.
-	kind ConnType
+	kind connType
 
 	// Message define the DNS query.
 	message *Message
diff --git a/lib/dns/server.go b/lib/dns/server.go
index c60d5ef1..0b2bf06d 100644
--- a/lib/dns/server.go
+++ b/lib/dns/server.go
@@ -369,7 +369,7 @@ func (srv *Server) serveUDP() {
 			return
 		}
 
-		req.kind = ConnTypeUDP
+		req.kind = connTypeUDP
 		req.udpAddr = raddr
 		req.message.Packet = req.message.Packet[:n]
 
@@ -439,7 +439,7 @@ func (srv *Server) handleDoHPost(w http.ResponseWriter, r *http.Request) {
 func (srv *Server) handleDoHRequest(raw []byte, w http.ResponseWriter) {
 	req := newRequest()
 
-	req.kind = ConnTypeDoH
+	req.kind = connTypeDoH
 	req.responseWriter = w
 	req.chanResponded = make(chan bool, 1)
 
@@ -479,7 +479,7 @@ func (srv *Server) serveTCPClient(cl *TCPClient) {
 			break
 		}
 
-		req.kind = ConnTypeTCP
+		req.kind = connTypeTCP
 		req.message.UnpackHeaderQuestion()
 		req.sender = cl
 
@@ -549,7 +549,7 @@ func (srv *Server) processResponse(req *request, res *Message, isLocal bool) {
 	}
 
 	switch req.kind {
-	case ConnTypeUDP:
+	case connTypeUDP:
 		if req.sender != nil {
 			_, err := req.sender.Send(res.Packet, req.udpAddr)
 			if err != nil {
@@ -558,7 +558,7 @@ func (srv *Server) processResponse(req *request, res *Message, isLocal bool) {
 			}
 		}
 
-	case ConnTypeTCP:
+	case connTypeTCP:
 		if req.sender != nil {
 			_, err := req.sender.Send(res.Packet, nil)
 			if err != nil {
@@ -567,7 +567,7 @@ func (srv *Server) processResponse(req *request, res *Message, isLocal bool) {
 			}
 		}
 
-	case ConnTypeDoH:
+	case connTypeDoH:
 		if req.responseWriter != nil {
 			_, err := req.responseWriter.Write(res.Packet)
 			req.chanResponded <- true