remove unnecessary conn

listener/tap/conn.go

@@ -0,0 +1,60 @@
+package tap
+
+import (
+	"errors"
+	"net"
+	"time"
+
+	mdata "github.com/go-gost/gost/v3/pkg/metadata"
+	"github.com/songgao/water"
+)
+
+type conn struct {
+	ifce  *water.Interface
+	laddr net.Addr
+	raddr net.Addr
+}
+
+func (c *conn) Read(b []byte) (n int, err error) {
+	return c.ifce.Read(b)
+}
+
+func (c *conn) Write(b []byte) (n int, err error) {
+	return c.ifce.Write(b)
+}
+
+func (c *conn) LocalAddr() net.Addr {
+	return c.laddr
+}
+
+func (c *conn) RemoteAddr() net.Addr {
+	return c.raddr
+}
+
+func (c *conn) SetDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "tap", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *conn) SetReadDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "tap", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *conn) SetWriteDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "tap", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *conn) Close() (err error) {
+	return c.ifce.Close()
+}
+
+type metadataConn struct {
+	net.Conn
+	md mdata.Metadata
+}
+
+func withMetadata(md mdata.Metadata, c net.Conn) net.Conn {
+	return &metadataConn{
+		Conn: c,
+		md:   md,
+	}
+}