diff --git a/proxy/dokodemo/dokodemo.go b/proxy/dokodemo/dokodemo.go
index 9cb75f3b0..524eda03e 100644
--- a/proxy/dokodemo/dokodemo.go
+++ b/proxy/dokodemo/dokodemo.go
@@ -118,7 +118,7 @@ func (this *DokodemoDoor) ListenTCP(port v2net.Port) error {
 	return nil
 }
 
-func (this *DokodemoDoor) HandleTCPConnection(conn hub.Connection) {
+func (this *DokodemoDoor) HandleTCPConnection(conn *hub.Connection) {
 	defer conn.Close()
 
 	ray := this.packetDispatcher.DispatchToOutbound(v2net.TCPDestination(this.address, this.port))
diff --git a/proxy/http/http.go b/proxy/http/http.go
index 31bf787f7..177540619 100644
--- a/proxy/http/http.go
+++ b/proxy/http/http.go
@@ -95,7 +95,7 @@ func parseHost(rawHost string, defaultPort v2net.Port) (v2net.Destination, error
 	return v2net.TCPDestination(v2net.DomainAddress(host), port), nil
 }
 
-func (this *HttpProxyServer) handleConnection(conn hub.Connection) {
+func (this *HttpProxyServer) handleConnection(conn *hub.Connection) {
 	defer conn.Close()
 	reader := bufio.NewReader(conn)
 
diff --git a/proxy/shadowsocks/shadowsocks.go b/proxy/shadowsocks/shadowsocks.go
index fed046660..54b3ec383 100644
--- a/proxy/shadowsocks/shadowsocks.go
+++ b/proxy/shadowsocks/shadowsocks.go
@@ -157,7 +157,7 @@ func (this *Shadowsocks) handlerUDPPayload(payload *alloc.Buffer, source v2net.D
 	})
 }
 
-func (this *Shadowsocks) handleConnection(conn hub.Connection) {
+func (this *Shadowsocks) handleConnection(conn *hub.Connection) {
 	defer conn.Close()
 
 	buffer := alloc.NewSmallBuffer()
diff --git a/proxy/socks/server.go b/proxy/socks/server.go
index 86fc41a98..864efac1e 100644
--- a/proxy/socks/server.go
+++ b/proxy/socks/server.go
@@ -92,7 +92,7 @@ func (this *Server) Listen(port v2net.Port) error {
 	return nil
 }
 
-func (this *Server) handleConnection(connection hub.Connection) {
+func (this *Server) handleConnection(connection *hub.Connection) {
 	defer connection.Close()
 
 	timedReader := v2net.NewTimeOutReader(120, connection)
diff --git a/proxy/vmess/inbound/inbound.go b/proxy/vmess/inbound/inbound.go
index 4314cfc17..073b6d316 100644
--- a/proxy/vmess/inbound/inbound.go
+++ b/proxy/vmess/inbound/inbound.go
@@ -115,7 +115,7 @@ func (this *VMessInboundHandler) Listen(port v2net.Port) error {
 	return nil
 }
 
-func (this *VMessInboundHandler) HandleConnection(connection hub.Connection) {
+func (this *VMessInboundHandler) HandleConnection(connection *hub.Connection) {
 	defer connection.Close()
 
 	connReader := v2net.NewTimeOutReader(16, connection)
diff --git a/transport/hub/connection.go b/transport/hub/connection.go
index 2069b1f63..3426b0999 100644
--- a/transport/hub/connection.go
+++ b/transport/hub/connection.go
@@ -1,36 +1,18 @@
 package hub
 
 import (
-	"crypto/tls"
 	"net"
 	"time"
-
-	"github.com/v2ray/v2ray-core/common"
 )
 
-type ConnectionHandler func(Connection)
+type ConnectionHandler func(*Connection)
 
-type Connection interface {
-	common.Releasable
-
-	Read([]byte) (int, error)
-	Write([]byte) (int, error)
-	Close() error
-	LocalAddr() net.Addr
-	RemoteAddr() net.Addr
-	SetDeadline(t time.Time) error
-	SetReadDeadline(t time.Time) error
-	SetWriteDeadline(t time.Time) error
-	CloseRead() error
-	CloseWrite() error
-}
-
-type TCPConnection struct {
-	conn     *net.TCPConn
+type Connection struct {
+	conn     net.Conn
 	listener *TCPHub
 }
 
-func (this *TCPConnection) Read(b []byte) (int, error) {
+func (this *Connection) Read(b []byte) (int, error) {
 	if this == nil || this.conn == nil {
 		return 0, ErrorClosedConnection
 	}
@@ -38,14 +20,14 @@ func (this *TCPConnection) Read(b []byte) (int, error) {
 	return this.conn.Read(b)
 }
 
-func (this *TCPConnection) Write(b []byte) (int, error) {
+func (this *Connection) Write(b []byte) (int, error) {
 	if this == nil || this.conn == nil {
 		return 0, ErrorClosedConnection
 	}
 	return this.conn.Write(b)
 }
 
-func (this *TCPConnection) Close() error {
+func (this *Connection) Close() error {
 	if this == nil || this.conn == nil {
 		return ErrorClosedConnection
 	}
@@ -53,7 +35,7 @@ func (this *TCPConnection) Close() error {
 	return err
 }
 
-func (this *TCPConnection) Release() {
+func (this *Connection) Release() {
 	if this == nil || this.listener == nil {
 		return
 	}
@@ -63,101 +45,22 @@ func (this *TCPConnection) Release() {
 	this.listener = nil
 }
 
-func (this *TCPConnection) LocalAddr() net.Addr {
+func (this *Connection) LocalAddr() net.Addr {
 	return this.conn.LocalAddr()
 }
 
-func (this *TCPConnection) RemoteAddr() net.Addr {
+func (this *Connection) RemoteAddr() net.Addr {
 	return this.conn.RemoteAddr()
 }
 
-func (this *TCPConnection) SetDeadline(t time.Time) error {
+func (this *Connection) SetDeadline(t time.Time) error {
 	return this.conn.SetDeadline(t)
 }
 
-func (this *TCPConnection) SetReadDeadline(t time.Time) error {
+func (this *Connection) SetReadDeadline(t time.Time) error {
 	return this.conn.SetReadDeadline(t)
 }
 
-func (this *TCPConnection) SetWriteDeadline(t time.Time) error {
+func (this *Connection) SetWriteDeadline(t time.Time) error {
 	return this.conn.SetWriteDeadline(t)
 }
-
-func (this *TCPConnection) CloseRead() error {
-	if this == nil || this.conn == nil {
-		return nil
-	}
-	return this.conn.CloseRead()
-}
-
-func (this *TCPConnection) CloseWrite() error {
-	if this == nil || this.conn == nil {
-		return nil
-	}
-	return this.conn.CloseWrite()
-}
-
-type TLSConnection struct {
-	conn     *tls.Conn
-	listener *TCPHub
-}
-
-func (this *TLSConnection) Read(b []byte) (int, error) {
-	if this == nil || this.conn == nil {
-		return 0, ErrorClosedConnection
-	}
-	return this.conn.Read(b)
-}
-
-func (this *TLSConnection) Write(b []byte) (int, error) {
-	if this == nil || this.conn == nil {
-		return this.conn.Write(b)
-	}
-	return this.conn.Write(b)
-}
-
-func (this *TLSConnection) Close() error {
-	if this == nil || this.conn == nil {
-		return ErrorClosedConnection
-	}
-	err := this.conn.Close()
-	return err
-}
-
-func (this *TLSConnection) Release() {
-	if this == nil || this.listener == nil {
-		return
-	}
-
-	this.Close()
-	this.conn = nil
-	this.listener = nil
-}
-
-func (this *TLSConnection) LocalAddr() net.Addr {
-	return this.conn.LocalAddr()
-}
-
-func (this *TLSConnection) RemoteAddr() net.Addr {
-	return this.conn.RemoteAddr()
-}
-
-func (this *TLSConnection) SetDeadline(t time.Time) error {
-	return this.conn.SetDeadline(t)
-}
-
-func (this *TLSConnection) SetReadDeadline(t time.Time) error {
-	return this.conn.SetReadDeadline(t)
-}
-
-func (this *TLSConnection) SetWriteDeadline(t time.Time) error {
-	return this.conn.SetWriteDeadline(t)
-}
-
-func (this *TLSConnection) CloseRead() error {
-	return nil
-}
-
-func (this *TLSConnection) CloseWrite() error {
-	return nil
-}
diff --git a/transport/hub/tcp.go b/transport/hub/tcp.go
index 54cda0e9e..eef64183f 100644
--- a/transport/hub/tcp.go
+++ b/transport/hub/tcp.go
@@ -51,7 +51,7 @@ func (this *TCPHub) start() {
 			}
 			continue
 		}
-		go this.connCallback(&TCPConnection{
+		go this.connCallback(&Connection{
 			conn:     conn,
 			listener: this,
 		})