dissertation-2-code/config/config.go

package config

import "github.com/go-playground/validator/v10"

var v = validator.New()

type Configuration struct {
	Host  Host
	Peers []Peer `validate:"dive"`
}

type Host struct {
	PrivateKey    string `validate:"required"`
	InterfaceName string
}

type Peer struct {
	PublicKey string `validate:"required"`
	Method    string `validate:"oneof=TCP UDP"`

	LocalHost string `validate:"omitempty,ip"`
	LocalPort uint   `validate:"max=65535"`

	RemoteHost string `validate:"required_with=RemotePort,omitempty,fqdn|ip"`
	RemotePort uint   `validate:"required_with=RemoteHost,omitempty,max=65535"`

	KeepAlive uint
	Timeout   uint
	RetryWait uint
}

func (c Configuration) Validate() error {
	return v.Struct(c)
}