nat

package
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Published: Nov 28, 2016 License: Apache-2.0, Apache-2.0 Imports: 5 Imported by: 0

Documentation

Overview

Package nat is a convenience package for manipulation of strings describing network ports.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ParsePort

func ParsePort(rawPort string) (int, error)

ParsePort parses the port number string and returns an int

func ParsePortRange

func ParsePortRange(ports string) (uint64, uint64, error)

ParsePortRange parses and validates the specified string as a port-range (8000-9000)

func ParsePortRangeToInt

func ParsePortRangeToInt(rawPort string) (int, int, error)

ParsePortRangeToInt parses the port range string and returns start/end ints

func ParsePortSpecs

func ParsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding, error)

ParsePortSpecs receives port specs in the format of ip:public:private/proto and parses these in to the internal types

func PartParser

func PartParser(template, data string) (map[string]string, error)

PartParser parses and validates the specified string (data) using the specified template e.g. ip:public:private -> 192.168.0.1:80:8000

func Sort

func Sort(ports []Port, predicate func(i, j Port) bool)

Sort sorts a list of ports using the provided predicate This function should compare `i` and `j`, returning true if `i` is considered to be less than `j`

func SortPortMap

func SortPortMap(ports []Port, bindings PortMap)

SortPortMap sorts the list of ports and their respected mapping. The ports will explicit HostPort will be placed first.

func SplitProtoPort

func SplitProtoPort(rawPort string) (string, string)

SplitProtoPort splits a port in the format of proto/port

Types

type Port

type Port string

Port is a string containing port number and protocol in the format "80/tcp"

func NewPort

func NewPort(proto, port string) (Port, error)

NewPort creates a new instance of a Port given a protocol and port number or port range

func (Port) Int

func (p Port) Int() int

Int returns the port number of a Port as an int

func (Port) Port

func (p Port) Port() string

Port returns the port number of a Port

func (Port) Proto

func (p Port) Proto() string

Proto returns the protocol of a Port

func (Port) Range

func (p Port) Range() (int, int, error)

Range returns the start/end port numbers of a Port range as ints

type PortBinding

type PortBinding struct {
	// HostIP is the host IP Address
	HostIP string `json:"HostIp"`
	// HostPort is the host port number
	HostPort string
}

PortBinding represents a binding between a Host IP address and a Host Port

type PortMap

type PortMap map[Port][]PortBinding

PortMap is a collection of PortBinding indexed by Port

type PortSet

type PortSet map[Port]struct{}

PortSet is a collection of structs indexed by Port

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