golang mysql throught a tunnel

ssh.go

package main

// based on gist
// https://gist.github.com/ir4y/11146415
// http://stackoverflow.com/questions/21417223/simple-ssh-port-forward-in-golang
// obro conexio ssh amb el server remot.
// tot el que envio al port local ho copio al port remote
// a traves de la conexio remota. Per tant he d'obrir un
// port a la maquina remota?

import (
	"code.google.com/p/go.crypto/ssh"
	"database/sql"
	"fmt"
	_ "github.com/hgfischer/mysql"
	"io"
	"log"
	"net"
)

func main() {

	config := &ssh.ClientConfig{
		User: "user",
		Auth: []ssh.AuthMethod{
			ssh.Password("password"),
		},
	}

	// remote connection
	conn, err := ssh.Dial("tcp", "ipadress:22", config)
	if err != nil {
		log.Fatalf("Unable to connect %s", err)
	}
	defer conn.Close()

	// local connection
	remote, err := conn.Dial("tcp", "localhost:3306")
	if err != nil {
		log.Fatalf("Unable to connect %s", err)
	}
	defer remote.Close()

	local, err := net.Listen("tcp", "localhost:3306")
	if err != nil {
		log.Fatalf("Unable to connect %s", err)
	}
	defer local.Close()

	go func() {
		for {

			l, err := local.Accept()
			if err != nil {
				log.Fatalf("listen Accept failed %s", err)
			}

			go func() {
				_, err := io.Copy(l, remote)
				if err != nil {
					log.Fatalf("io.Copy failed: %v", err)
				}
			}()

			go func() {
				_, err := io.Copy(remote, l)
				if err != nil {
					log.Fatalf("io.Copy failed: %v", err)
				}
			}()

		}
	}()

	dsn := "user:pass@tcp(127.0.0.1:3306)/bdd?charset=utf8"
	db, err := sql.Open("mysql", dsn)

	if err != nil {
		log.Fatalf("Error connecting to database %s", err)
	}

	var count uint64
	row := db.QueryRow("SELECT COUNT(*) FROM auth_user")
	err = row.Scan(&count)

	if err != nil {
		log.Fatalf("Error on query database %s", err)
	}

	fmt.Printf("total registros %d", count)

	//fmt.Printfln("Total %d", count)


}

Any idea how to do a remote port forwarding?