kubernetes/pkg/proxy/util/nodeport_addresses.go

type NodePortAddresses …

var ipv4LoopbackStart …

// NewNodePortAddresses takes an IP family and the `--nodeport-addresses` value (which is
// assumed to contain only valid CIDRs, potentially of both IP families) and returns a
// NodePortAddresses object for the given family. If there are no CIDRs of the given
// family then the CIDR "0.0.0.0/0" or "::/0" will be added (even if there are CIDRs of
// the other family).
func NewNodePortAddresses(family v1.IPFamily, cidrStrings []string) *NodePortAddresses { … }

func (npa *NodePortAddresses) String() string { … }

// MatchAll returns true if npa matches all node IPs (of npa's given family)
func (npa *NodePortAddresses) MatchAll() bool { … }

// GetNodeIPs return all matched node IP addresses for npa's CIDRs. If no matching
// IPs are found, it returns an empty list.
// NetworkInterfacer is injected for test purpose.
func (npa *NodePortAddresses) GetNodeIPs(nw NetworkInterfacer) ([]net.IP, error) { … }

// ContainsIPv4Loopback returns true if npa's CIDRs contain an IPv4 loopback address.
func (npa *NodePortAddresses) ContainsIPv4Loopback() bool { … }