proto

type DTD struct {
	XMLName              xml.Name       `xml:"config-auth"`
	Client               string         `xml:"client,attr"`                 // usually "vpn"
	Type                 string         `xml:"type,attr"`                   // request type: init, logout, auth-reply
	AggregateAuthVersion string         `xml:"aggregate-auth-version,attr"` // usually 2
	Version              string         `xml:"version"`                     // client version
	GroupAccess          string         `xml:"group-access"`                // requested address
	GroupSelect          string         `xml:"group-select"`                // selected group name
	ClientCertRequest    *struct{}      `xml:"client-cert-request"`
	SessionToken         string         `xml:"session-token"`
	Error                authError      `xml:"error"`
	Auth                 auth           `xml:"auth"`
	DeviceId             deviceId       `xml:"device-id"`
	Opaque               opaque         `xml:"opaque"`
	Capabilities         capabilities   `xml:"capabilities"`
	MacAddressList       macAddressList `xml:"mac-address-list"`
	Config               config         `xml:"config"`
}

type Payload struct {
	Type byte // The available payload types
	Data []byte
}