intf

type ARPEntry struct {
	// IP is the IP address of the neighbour.
	IP net.IP
	// Interface is the name of the interface on which the ARP entry was learnt.
	Interface *Interface
	// MAC is the MAC address of the neighbour.
	MAC net.HardwareAddr
}

type ARPEvent int64

type ARPUpdate struct {
	// Type indicates whether the event was an add or delete.
	Type ARPEvent
	// Neigh is the neighbour that the change corresponds to.
	Neigh ARPEntry
}

type IntState int64

type Interface struct {
	// Index is an integer index used to refer to the interface.
	Index int
	// Name is the name used to refer to the interface in the system.
	Name string
	// MAC is the MAC address of the interface.
	MAC net.HardwareAddr
	// OperState is the operational status of the interface.
	OperState IntState
	// AdminState is the administrative state of the interface.
	AdminState IntState
}

type NetworkAccessor interface {
	// Interfaces returns a set of interfaces that are present on the local system.
	Interfaces() ([]*Interface, error)
	// Interface retrieves the interface with the specified name.
	Interface(name string) (*Interface, error)
	// InterfaceAdddresses lists the IP addresses configured on a particular interface.
	InterfaceAddresses(name string) ([]*net.IPNet, error)
	// AddInterfaceIP adds address ip to the interface name.
	AddInterfaceIP(name string, ip *net.IPNet) error
	// ARPList lists the set of ARP neighbours on the system.
	ARPList() ([]*ARPEntry, error)
	// ARPSubscribe writes changes to the ARP table to the channel updates, and uses
	// done to indicate that the subscription is complete. The ARPSubscribe function
	// should not be blocking and rather return once it has started a separate goroutine
	// that writes updates to the updates channel, and can be cancelled by sending a
	// message to the done channel.
	ARPSubscribe(updates chan ARPUpdate, done chan struct{}) error
	// InterfaceState manipulates the state of the interface specified by name.
	InterfaceState(name string, state IntState) error
}