addressing

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 Go to latest Published: Aug 28, 2016 License: Apache-2.0 Imports: 8 Imported by: 0

Documentation

Overview

Copyright 2016 Authors of Cilium

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

Constants

View Source 
const (
	// Default prefix for all IPv6 addresses.
	DefaultIPv6Prefix = "f00d::"
	// Prefix length to allocate container IPv6 addresses from
	DefaultIPv6PrefixLen = 112
	// Default prefix for all IPv4 addresses. %d is substituted with the
	// last byte of first global IPv4 address configured on the system.
	DefaultIPv4Prefix = "10.%d.0.1"
	// Prefix length to allocate container IPv4 addresses from
	DefaultIPv4PrefixLen = 16
	// Default IPv4 prefix length of entire cluster
	DefaultIPv4ClusterPrefixLen = 8
	// Default IPv6 prefix to represent NATed IPv4 addresses
	DefaultNAT46Prefix = "aa46::/48"
)

Variables

View Source 
var (

	// ClusterIPv6Mask represents the CIDR Mask for an entire cluster
	ClusterIPv6Mask = net.CIDRMask(64, 128)
	// NodeIPv6Mask represents the CIDR Mask for the cilium node.
	NodeIPv6Mask = net.CIDRMask(96, 128)
	// StateIPv6Mask represents the CIDR Mask for the state position.
	StateIPv6Mask = net.CIDRMask(112, 128)

	// IPv6 prefix length for address assigned to container. The default is
	// L3 only and thus /128.
	ContainerIPv6Mask = net.CIDRMask(128, 128)
	// IPv4 prefix length for address assigned to container. The default is
	// L3 only and thus /32
	ContainerIPv4Mask = net.CIDRMask(32, 32)

	IPv6DefaultRoute = net.IPNet{IP: net.IPv6zero, Mask: net.CIDRMask(0, 128)}
	IPv4DefaultRoute = net.IPNet{IP: net.IPv4zero, Mask: net.CIDRMask(0, 32)}
)
View Source 
var (
	ErrIPv4Invalid         = errors.New("Invalid IPv4 address")
	ErrIPv4NotConfigured   = errors.New("No IPv4 address configured")
	ErrNodeIPEndpointIDSet = errors.New("Endpoint ID set in IPv6 node address")
	ErrNodeIDZero          = errors.New("Node ID is zero (invalid)")
)

Functions

This section is empty.

Types

type CiliumIP 

type CiliumIP interface {
	NodeID() uint32
	State() uint16
	EndpointID() uint16
	IPNet(ones int) *net.IPNet
	String() string
}

type CiliumIPv4 

type CiliumIPv4 []byte

func DeriveCiliumIPv4 

func DeriveCiliumIPv4(src net.IP) CiliumIPv4

func NewCiliumIPv4 

func NewCiliumIPv4(address string) (CiliumIPv4, error)

func (CiliumIPv4) EndpointID 

func (ip CiliumIPv4) EndpointID() uint16

func (CiliumIPv4) IP 

func (ip CiliumIPv4) IP() net.IP

func (CiliumIPv4) IPAMReq 

func (ip CiliumIPv4) IPAMReq() ipam.IPAMReq

func (CiliumIPv4) IPNet 

func (ip CiliumIPv4) IPNet(ones int) *net.IPNet

func (CiliumIPv4) MarshalJSON 

func (ip CiliumIPv4) MarshalJSON() ([]byte, error)

func (CiliumIPv4) NodeID 

func (ip CiliumIPv4) NodeID() uint32

func (CiliumIPv4) NodeIP 

func (ip CiliumIPv4) NodeIP() net.IP

NodeIP() return the node's IP based on an endpoint IP of the local node

func (CiliumIPv4) String 

func (ip CiliumIPv4) String() string

func (*CiliumIPv4) UnmarshalJSON 

func (ip *CiliumIPv4) UnmarshalJSON(b []byte) error

func (CiliumIPv4) ValidContainerIP 

func (ip CiliumIPv4) ValidContainerIP() bool

Returns true if the IPv4 address is a valid IP for a container To be valid must obey to the following rules: - Node ID, bits from 0 to 16, must be different than 0 - Endpoint ID, bits from 16 to 32, must be different than 0

func (CiliumIPv4) ValidNodeIP 

func (ip CiliumIPv4) ValidNodeIP() bool

Returns true if the IPv4 address is a valid IP of a node

type CiliumIPv6 

type CiliumIPv6 []byte

func DeriveCiliumIPv6 

func DeriveCiliumIPv6(src net.IP) CiliumIPv6

func NewCiliumIPv6 

func NewCiliumIPv6(address string) (CiliumIPv6, error)

- Be an IPv6 address - Node ID, bits from 112 to 120, must be different than 0 - Endpoint ID, bits from 120 to 128, must be equal to 0

func (CiliumIPv6) EndpointID 

func (ip CiliumIPv6) EndpointID() uint16

Returns the container ID portion of the address or 0

func (CiliumIPv6) HostIP 

func (ip CiliumIPv6) HostIP() net.IP

Returns the host address from the node ID

func (CiliumIPv6) IP 

func (ip CiliumIPv6) IP() net.IP

func (CiliumIPv6) IPAMReq 

func (ip CiliumIPv6) IPAMReq() ipam.IPAMReq

func (CiliumIPv6) IPNet 

func (ip CiliumIPv6) IPNet(ones int) *net.IPNet

func (CiliumIPv6) MarshalJSON 

func (ip CiliumIPv6) MarshalJSON() ([]byte, error)

func (CiliumIPv6) NodeID 

func (ip CiliumIPv6) NodeID() uint32

Returns the node ID portion of the address or 0

func (CiliumIPv6) NodeIP 

func (ip CiliumIPv6) NodeIP() net.IP

NodeIP() return the node's IP based on an endpoint IP of the local node

func (CiliumIPv6) State 

func (ip CiliumIPv6) State() uint16

func (CiliumIPv6) String 

func (ip CiliumIPv6) String() string

func (*CiliumIPv6) UnmarshalJSON 

func (ip *CiliumIPv6) UnmarshalJSON(b []byte) error

func (CiliumIPv6) ValidContainerIP 

func (ip CiliumIPv6) ValidContainerIP() bool

Returns true if IP is a valid IP for a container To be valid must obey to the following rules: - Node ID, bits from 64 to 96, must be different than 0 - State, bits from 96 to 112, must be 0 - Endpoint ID, bits from 112 to 128, must be different than 0

func (*CiliumIPv6) ValidNodeIP 

func (ip *CiliumIPv6) ValidNodeIP() bool

Returns true if IP is a valid IP of a node - Node ID, bits from 64 to 96, must be different than 0 - State, bits from 96 to 112, must be 0 - Endpoint ID, bits from 112 to 128, must be 0

type NodeAddress 

type NodeAddress struct {
	IPv6Address CiliumIPv6
	IPv6Route   net.IPNet

	IPv4Address CiliumIPv4
	IPv4Route   net.IPNet
}

func NewNodeAddress 

func NewNodeAddress(v6Address string, ipv4Range string, device string) (*NodeAddress, error)

Allocate new node address

func (*NodeAddress) IPv4AllocRange 

func (a *NodeAddress) IPv4AllocRange() *net.IPNet

func (*NodeAddress) IPv4ClusterRange 

func (a *NodeAddress) IPv4ClusterRange() *net.IPNet

func (*NodeAddress) IPv6AllocRange 

func (a *NodeAddress) IPv6AllocRange() *net.IPNet

func (*NodeAddress) String 

func (a *NodeAddress) String() string

Source Files

View all Source files

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