netutils

Documentation

Index

• Variables
• func FormatMacAddr(macAddr string) string
• func IP2Number(ipstr string) (uint32, error)
• func IsExitAddress(addr IPV4Addr) bool
• func IsHostLocal(addr IPV4Addr) bool
• func IsLinkLocal(addr IPV4Addr) bool
• func IsMulticast(addr IPV4Addr) bool
• func IsPrivate(addr IPV4Addr) bool
• func MacUnpackHex(mac string) string
• func Mask2Len(mask IPV4Addr) int8
• func Number2Bytes(num uint32) []byte
• func Number2IP(num uint32) string
• func SetPrivatePrefixes(pref []string)
• type IPV4Addr
  • func Masklen2Mask(maskLen int8) IPV4Addr
  • func NewIPV4Addr(ipstr string) (IPV4Addr, error)
  • func ParsePrefix(prefix string) (IPV4Addr, int8, error)
  • func (addr IPV4Addr) BroadcastAddr(maskLen int8) IPV4Addr
  • func (addr IPV4Addr) CliAddr(maskLen int8) IPV4Addr
  • func (addr IPV4Addr) NetAddr(maskLen int8) IPV4Addr
  • func (addr IPV4Addr) StepDown() IPV4Addr
  • func (addr IPV4Addr) StepUp() IPV4Addr
  • func (addr IPV4Addr) String() string
  • func (addr IPV4Addr) ToBytes() []byte
  • func (addr IPV4Addr) ToMac(prefix string) string
• type IPV4AddrRange
  • func GetPrivateIPRanges() []IPV4AddrRange
  • func NewIPV4AddrRange(ip1 IPV4Addr, ip2 IPV4Addr) IPV4AddrRange
  • func NewIPV4AddrRangeFromIPNet(n *net.IPNet) IPV4AddrRange
  • func (ar IPV4AddrRange) AddressCount() int
  • func (ar IPV4AddrRange) Contains(ip IPV4Addr) bool
  • func (ar IPV4AddrRange) ContainsRange(ar2 IPV4AddrRange) bool
  • func (ar IPV4AddrRange) EndIp() IPV4Addr
  • func (ar IPV4AddrRange) IsOverlap(ar2 IPV4AddrRange) bool
  • func (ar IPV4AddrRange) Merge(ar2 IPV4AddrRange) (*IPV4AddrRange, bool)
  • func (ar IPV4AddrRange) Random() IPV4Addr
  • func (ar IPV4AddrRange) StartIp() IPV4Addr
  • func (ar IPV4AddrRange) String() string
  • func (ar IPV4AddrRange) Substract(ar2 IPV4AddrRange) (lefts []IPV4AddrRange, sub *IPV4AddrRange)
  • func (ar IPV4AddrRange) ToIPNets() []*net.IPNet
  • func (ar IPV4AddrRange) ToMaskMatches() [][2]uint32
• type IPV4Prefix
  • func NewIPV4Prefix(prefix string) (IPV4Prefix, error)
  • func (prefix IPV4Prefix) Contains(ip IPV4Addr) bool
  • func (pref *IPV4Prefix) Equals(pref1 *IPV4Prefix) bool
  • func (pref *IPV4Prefix) String() string
  • func (prefix IPV4Prefix) ToIPRange() IPV4AddrRange

Variables

var (
	ErrInvalidNumber  = errors.Error("invalid number")
	ErrOutOfRange     = errors.Error("ip number out of range [0-255]")
	ErrInvalidIPAddr  = errors.Error("invalid ip address")
	ErrInvalidMask    = errors.Error("invalid mask")
	ErrOutOfRangeMask = errors.Error("out of range masklen [0-32]")
)

Functions

func FormatMacAddr

func FormatMacAddr(macAddr string) string

func IP2Number

func IP2Number(ipstr string) (uint32, error)

func IsExitAddress

func IsExitAddress(addr IPV4Addr) bool

func IsHostLocal

func IsHostLocal(addr IPV4Addr) bool

func IsLinkLocal

func IsLinkLocal(addr IPV4Addr) bool

func IsMulticast

func IsMulticast(addr IPV4Addr) bool

func IsPrivate

func IsPrivate(addr IPV4Addr) bool

func MacUnpackHex

func MacUnpackHex(mac string) string

func Mask2Len

func Mask2Len(mask IPV4Addr) int8

func Number2Bytes

func Number2Bytes(num uint32) []byte

func Number2IP

func Number2IP(num uint32) string

func SetPrivatePrefixes

func SetPrivatePrefixes(pref []string)

Types

type IPV4Addr

type IPV4Addr uint32

func Masklen2Mask

func Masklen2Mask(maskLen int8) IPV4Addr

func NewIPV4Addr

func NewIPV4Addr(ipstr string) (IPV4Addr, error)

func ParsePrefix

func ParsePrefix(prefix string) (IPV4Addr, int8, error)

func (IPV4Addr) BroadcastAddr

func (addr IPV4Addr) BroadcastAddr(maskLen int8) IPV4Addr

func (IPV4Addr) CliAddr

func (addr IPV4Addr) CliAddr(maskLen int8) IPV4Addr

func (IPV4Addr) NetAddr

func (addr IPV4Addr) NetAddr(maskLen int8) IPV4Addr

func (IPV4Addr) StepDown

func (addr IPV4Addr) StepDown() IPV4Addr

func (IPV4Addr) StepUp

func (addr IPV4Addr) StepUp() IPV4Addr

func (IPV4Addr) String

func (addr IPV4Addr) String() string

func (IPV4Addr) ToBytes

func (addr IPV4Addr) ToBytes() []byte

func (IPV4Addr) ToMac

func (addr IPV4Addr) ToMac(prefix string) string

type IPV4AddrRange

type IPV4AddrRange struct {
	// contains filtered or unexported fields
}

func GetPrivateIPRanges

func GetPrivateIPRanges() []IPV4AddrRange

func NewIPV4AddrRange

func NewIPV4AddrRange(ip1 IPV4Addr, ip2 IPV4Addr) IPV4AddrRange

func NewIPV4AddrRangeFromIPNet

func NewIPV4AddrRangeFromIPNet(n *net.IPNet) IPV4AddrRange

n.IP and n.Mask must be ipv4 type. n.Mask must be canonical

func (IPV4AddrRange) AddressCount

func (ar IPV4AddrRange) AddressCount() int

func (IPV4AddrRange) Contains

func (ar IPV4AddrRange) Contains(ip IPV4Addr) bool

func (IPV4AddrRange) ContainsRange

func (ar IPV4AddrRange) ContainsRange(ar2 IPV4AddrRange) bool

func (IPV4AddrRange) EndIp

func (ar IPV4AddrRange) EndIp() IPV4Addr

func (IPV4AddrRange) IsOverlap

func (ar IPV4AddrRange) IsOverlap(ar2 IPV4AddrRange) bool

func (IPV4AddrRange) Merge

func (ar IPV4AddrRange) Merge(ar2 IPV4AddrRange) (*IPV4AddrRange, bool)

func (IPV4AddrRange) Random

func (ar IPV4AddrRange) Random() IPV4Addr

func (IPV4AddrRange) StartIp

func (ar IPV4AddrRange) StartIp() IPV4Addr

func (IPV4AddrRange) String

func (ar IPV4AddrRange) String() string

func (IPV4AddrRange) Substract

func (ar IPV4AddrRange) Substract(ar2 IPV4AddrRange) (lefts []IPV4AddrRange, sub *IPV4AddrRange)

func (IPV4AddrRange) ToIPNets

func (ar IPV4AddrRange) ToIPNets() []*net.IPNet

func (IPV4AddrRange) ToMaskMatches

func (ar IPV4AddrRange) ToMaskMatches() [][2]uint32

type IPV4Prefix

type IPV4Prefix struct {
	Address IPV4Addr
	MaskLen int8
	// contains filtered or unexported fields
}

func NewIPV4Prefix

func NewIPV4Prefix(prefix string) (IPV4Prefix, error)

func (IPV4Prefix) Contains

func (prefix IPV4Prefix) Contains(ip IPV4Addr) bool

func (*IPV4Prefix) Equals

func (pref *IPV4Prefix) Equals(pref1 *IPV4Prefix) bool

func (*IPV4Prefix) String

func (pref *IPV4Prefix) String() string

func (IPV4Prefix) ToIPRange

func (prefix IPV4Prefix) ToIPRange() IPV4AddrRange