dhcplb

type Config struct {
	Version              int
	Addr                 *net.UDPAddr
	Algorithm            DHCPBalancingAlgorithm
	ServerUpdateInterval time.Duration
	PacketBufSize        int
	Handler              Handler
	HostSourcer          DHCPServerSourcer
	RCRatio              uint32
	Overrides            map[string]Override
	Extras               interface{}
	CacheSize            int
	CacheRate            int
	Rate                 int
	ReplyAddr            *net.UDPAddr
}

type ConfigProvider interface {
	NewHostSourcer(
		sourcerType, args string, version int) (DHCPServerSourcer, error)
	ParseExtras(extras json.RawMessage) (interface{}, error)
	NewDHCPBalancingAlgorithm(version int) (DHCPBalancingAlgorithm, error)
	NewHandler(extras interface{}, version int) (Handler, error)
}

type DHCPBalancingAlgorithm interface {
	SelectServerFromList(list []*DHCPServer, message *DHCPMessage) (*DHCPServer, error)
	SelectRatioBasedDhcpServer(message *DHCPMessage) (*DHCPServer, error)
	UpdateStableServerList(list []*DHCPServer) error
	UpdateRCServerList(list []*DHCPServer) error
	SetRCRatio(ratio uint32)
	// An unique name for the algorithm, this string can be used in the
	// configuration file, in the section where the algorithm is selecetd.
	Name() string
}

type DHCPMessage struct {
	XID      []byte
	Peer     *net.UDPAddr
	ClientID []byte
	Mac      net.HardwareAddr
	Serial   string
}

type DHCPServer struct {
	Hostname string
	Address  net.IP
	Port     int
	IsRC     bool
}

type DHCPServerSourcer interface {
	GetStableServers() ([]*DHCPServer, error)
	GetRCServers() ([]*DHCPServer, error)
	GetServersFromTier(tier string) ([]*DHCPServer, error)
}

type FileSourcer struct {
	// contains filtered or unexported fields
}

type Handler interface {
	ServeDHCPv4(packet *dhcpv4.DHCPv4) (*dhcpv4.DHCPv4, error)
	ServeDHCPv6(packet dhcpv6.DHCPv6) (dhcpv6.DHCPv6, error)
}

type LogMessage struct {
	Version      int
	Packet       []byte
	Peer         *net.UDPAddr
	Server       string
	ServerIsRC   bool
	Latency      time.Duration
	Success      bool
	ErrorName    string
	ErrorDetails error
}

type Override struct {
	// note that Host override takes precedence over Tier
	Host       string `json:"host"`
	Tier       string `json:"tier"`
	Expiration string `json:"expiration"`
}

type Overrides struct {
	V4 map[string]Override `json:"v4"`
	V6 map[string]Override `json:"v6"`
}

type PersonalizedLogger interface {
	Log(msg LogMessage) error
}

type Server struct {
	// contains filtered or unexported fields
}

type Throttle struct {
	// contains filtered or unexported fields
}