egressmap

Documentation

Overview

+groupName=maps

Index

• Constants
• Variables
• func InitEgressMaps(maxPolicyEntries int) error
• func OpenEgressMaps() error
• type EgressPolicyIterateCallback
• type EgressPolicyKey4
  • func NewEgressPolicyKey4(sourceIP, destIP net.IP, destinationMask net.IPMask) EgressPolicyKey4
  • func (k *EgressPolicyKey4) GetDestCIDR() *net.IPNet
  • func (k *EgressPolicyKey4) GetSourceIP() net.IP
  • func (k *EgressPolicyKey4) Match(sourceIP net.IP, destCIDR *net.IPNet) bool
• type EgressPolicyVal4
  • func NewEgressPolicyVal4(egressIP, gatewayIP net.IP) EgressPolicyVal4
  • func (v *EgressPolicyVal4) GetEgressIP() net.IP
  • func (v *EgressPolicyVal4) GetGatewayIP() net.IP
  • func (v *EgressPolicyVal4) Match(egressIP, gatewayIP net.IP) bool
  • func (v *EgressPolicyVal4) String() string

Constants

const (
	PolicyMapName = "cilium_egress_gw_policy_v4"

	MaxPolicyEntries = 1 << 14
)

const (
	// PolicyStaticPrefixBits represents the size in bits of the static
	// prefix part of an egress policy key (i.e. the source IP).
	PolicyStaticPrefixBits = uint32(unsafe.Sizeof(types.IPv4{}) * 8)
)

Variables

var (
	EgressPolicyMap *egressPolicyMap
)

Functions

func InitEgressMaps

func InitEgressMaps(maxPolicyEntries int) error

InitEgressMaps initializes the egress policy map.

func OpenEgressMaps

func OpenEgressMaps() error

OpenEgressMaps initializes the egress policy map.

Types

type EgressPolicyIterateCallback

type EgressPolicyIterateCallback func(*EgressPolicyKey4, *EgressPolicyVal4)

EgressPolicyIterateCallback represents the signature of the callback function expected by the IterateWithCallback method, which in turn is used to iterate all the keys/values of an egress policy map.

type EgressPolicyKey4

type EgressPolicyKey4 struct {
	// PrefixLen is full 32 bits of SourceIP + DestCIDR's mask bits
	PrefixLen uint32 `align:"lpm_key"`

	SourceIP types.IPv4 `align:"saddr"`
	DestCIDR types.IPv4 `align:"daddr"`
}

EgressPolicyKey4 is the key of an egress policy map.

func NewEgressPolicyKey4

func NewEgressPolicyKey4(sourceIP, destIP net.IP, destinationMask net.IPMask) EgressPolicyKey4

NewEgressPolicyKey4 returns a new EgressPolicyKey4 object representing the (source IP, destination CIDR) tuple.

func (*EgressPolicyKey4) GetDestCIDR

func (k *EgressPolicyKey4) GetDestCIDR() *net.IPNet

GetDestCIDR returns the egress policy key's destination CIDR.

func (*EgressPolicyKey4) GetSourceIP

func (k *EgressPolicyKey4) GetSourceIP() net.IP

GetSourceIP returns the egress policy key's source IP.

func (*EgressPolicyKey4) Match

func (k *EgressPolicyKey4) Match(sourceIP net.IP, destCIDR *net.IPNet) bool

Match returns true if the sourceIP and destCIDR parameters match the egress policy key.

type EgressPolicyVal4

type EgressPolicyVal4 struct {
	EgressIP  types.IPv4 `align:"egress_ip"`
	GatewayIP types.IPv4 `align:"gateway_ip"`
}

EgressPolicyVal4 is the value of an egress policy map.

func NewEgressPolicyVal4

func NewEgressPolicyVal4(egressIP, gatewayIP net.IP) EgressPolicyVal4

NewEgressPolicyVal4 returns a new EgressPolicyVal4 object representing for the given egress IP and gateway IPs

func (*EgressPolicyVal4) GetEgressIP

func (v *EgressPolicyVal4) GetEgressIP() net.IP

GetEgressIP returns the egress policy value's egress IP.

func (*EgressPolicyVal4) GetGatewayIP

func (v *EgressPolicyVal4) GetGatewayIP() net.IP

GetGatewayIP returns the egress policy value's gateway IP.

func (*EgressPolicyVal4) Match

func (v *EgressPolicyVal4) Match(egressIP, gatewayIP net.IP) bool

Match returns true if the egressIP and gatewayIP parameters match the egress policy value.

func (*EgressPolicyVal4) String

func (v *EgressPolicyVal4) String() string

String returns the string representation of an egress policy value.