merge functions file

functions.go

@@ -5,6 +5,7 @@ import (
 
 	"v2ray.com/core/common"
 	"v2ray.com/core/common/buf"
+	"v2ray.com/core/common/net"
 )
 
 // CreateObject creates a new object based on the given V2Ray instance and config. The V2Ray instance may be nil.
@@ -33,3 +34,15 @@ func StartInstance(configFormat string, configBytes []byte) (*Instance, error) {
 	}
 	return instance, nil
 }
+
+// Dial provides an easy way for upstream caller to create net.Conn through V2Ray.
+// It dispatches the request to the given destination by the given V2Ray instance.
+// Since it is under a proxy context, the LocalAddr() and RemoteAddr() in returned net.Conn
+// will not show real addresses being used for communication.
+func Dial(ctx context.Context, v *Instance, dest net.Destination) (net.Conn, error) {
+	r, err := v.Dispatcher().Dispatch(ctx, dest)
+	if err != nil {
+		return nil, err
+	}
+	return net.NewConnection(net.ConnectionInputMulti(r.Writer), net.ConnectionOutputMulti(r.Reader)), nil
+}