transports

type Channel interface {
	io.ReadWriteCloser

	Parent() MuxingConn
}

type MuxingConn interface {
	Open(uint32) Channel
	Close() error

	LocalAddr() string
	RemoteAddr() string

	RemoteID() friends.ID
}

type Transport interface {
	Dial(raddr string, who crypto.PublicKey) (MuxingConn, error)
	Accept() (MuxingConn, error)
	Close() error
	LocalAddr() string
}