ip

Documentation

Index

• Constants
• func DiffFromCIDRs(allowCIDR *net.IPNet, exceptCIDRs []*net.IPNet) ([]*net.IPNet, error)
• func GetLocalBroadcastIP(ipNet *net.IPNet) net.IP
• func IPNetToNetIPNet(ipNet *v1beta2.IPNet) *net.IPNet
• func IPProtocolNumberToString(protocolNum uint8, defaultValue string) string
• func MustIPv6(s string) net.IP
• func MustParseCIDR(cidr string) *net.IPNet
• type DualStackIPs
  • func (ips DualStackIPs) Equal(x DualStackIPs) bool

Constants

const (
	V4BitLen = 8 * net.IPv4len
	V6BitLen = 8 * net.IPv6len
)

const (
	ICMPProtocol   = 1
	TCPProtocol    = 6
	UDPProtocol    = 17
	ICMPv6Protocol = 58
	SCTPProtocol   = 132
)

Functions

func DiffFromCIDRs

func DiffFromCIDRs(allowCIDR *net.IPNet, exceptCIDRs []*net.IPNet) ([]*net.IPNet, error)

This function takes in one allow CIDR and multiple except CIDRs and gives diff CIDRs in allowCIDR eliminating except CIDRs. It currently supports only IPv4. except CIDR input can be changed.

func GetLocalBroadcastIP

func GetLocalBroadcastIP(ipNet *net.IPNet) net.IP

GetLocalBroadcastIP returns the last IP address in a subnet. This IP is always working as the broadcast address in the subnet on Windows, and an active route entry that uses it as the destination is added by default when a new IP is configured on the interface.

func IPNetToNetIPNet

func IPNetToNetIPNet(ipNet *v1beta2.IPNet) *net.IPNet

IPNetToNetIPNet converts Antrea IPNet to *net.IPNet. Note that K8s allows non-standard CIDRs to be specified (e.g. 10.0.1.1/16, fe80::7015:efff:fe9a:146b/64). However, OVS will report OFPBMC_BAD_WILDCARDS error if using them in the OpenFlow messages. The function will normalize the CIDR if it's non-standard.

func IPProtocolNumberToString

func IPProtocolNumberToString(protocolNum uint8, defaultValue string) string

IPProtocolNumberToString returns the string name of the IP protocol with number protocolNum. If the number does not match a "known" protocol, we return the defaultValue string.

func MustIPv6

func MustIPv6(s string) net.IP

func MustParseCIDR

func MustParseCIDR(cidr string) *net.IPNet

MustParseCIDR turns the given string into IPNet or panics, for tests or other cases where the string must be valid.

Types

type DualStackIPs

type DualStackIPs struct {
	IPv4 net.IP
	IPv6 net.IP
}

func (DualStackIPs) Equal

func (ips DualStackIPs) Equal(x DualStackIPs) bool