ip

Documentation

Index

• Variables
• func DirectRouting(ip net.IP) (bool, error)
• func EnsureV4AddressOnLink(ipn IP4Net, link netlink.Link) error
• func GetDefaultGatewayIface() (*net.Interface, error)
• func GetIfaceIP4Addr(iface *net.Interface) (net.IP, error)
• func GetIfaceIP4AddrMatch(iface *net.Interface, matchAddr net.IP) error
• func GetInterfaceByIP(ip net.IP) (*net.Interface, error)
• func NativelyLittle() bool
• func OpenTun(name string) (*os.File, string, error)
• type IP4
  • func FromBytes(ip []byte) IP4
  • func FromIP(ip net.IP) IP4
  • func MustParseIP4(s string) IP4
  • func ParseIP4(s string) (IP4, error)
  • func (ip IP4) MarshalJSON() ([]byte, error)
  • func (ip IP4) NetworkOrder() uint32
  • func (ip IP4) Octets() (a, b, c, d byte)
  • func (ip IP4) String() string
  • func (ip IP4) StringSep(sep string) string
  • func (ip IP4) ToIP() net.IP
  • func (ip *IP4) UnmarshalJSON(j []byte) error
• type IP4Net
  • func FromIPNet(n *net.IPNet) IP4Net
  • func (n IP4Net) Contains(ip IP4) bool
  • func (n IP4Net) Empty() bool
  • func (n IP4Net) Equal(other IP4Net) bool
  • func (n IP4Net) MarshalJSON() ([]byte, error)
  • func (n IP4Net) Mask() uint32
  • func (n IP4Net) Network() IP4Net
  • func (n IP4Net) Next() IP4Net
  • func (n IP4Net) Overlaps(other IP4Net) bool
  • func (n IP4Net) String() string
  • func (n IP4Net) StringSep(octetSep, prefixSep string) string
  • func (n IP4Net) ToIPNet() *net.IPNet
  • func (n *IP4Net) UnmarshalJSON(j []byte) error

Variables

var NativeEndian binary.ByteOrder

NativeEndian is the ByteOrder of the current system.

Functions

func DirectRouting

func DirectRouting(ip net.IP) (bool, error)

func EnsureV4AddressOnLink

func EnsureV4AddressOnLink(ipn IP4Net, link netlink.Link) error

EnsureV4AddressOnLink ensures that there is only one v4 Addr on `link` and it equals `ipn`. If there exist multiple addresses on link, it returns an error message to tell callers to remove additional address.

func GetDefaultGatewayIface

func GetDefaultGatewayIface() (*net.Interface, error)

func GetIfaceIP4Addr

func GetIfaceIP4Addr(iface *net.Interface) (net.IP, error)

func GetIfaceIP4AddrMatch

func GetIfaceIP4AddrMatch(iface *net.Interface, matchAddr net.IP) error

func GetInterfaceByIP

func GetInterfaceByIP(ip net.IP) (*net.Interface, error)

func NativelyLittle

func NativelyLittle() bool

func OpenTun

func OpenTun(name string) (*os.File, string, error)

Types

type IP4

type IP4 uint32

func FromBytes

func FromBytes(ip []byte) IP4

func FromIP

func FromIP(ip net.IP) IP4

func MustParseIP4

func MustParseIP4(s string) IP4

func ParseIP4

func ParseIP4(s string) (IP4, error)

func (IP4) MarshalJSON

func (ip IP4) MarshalJSON() ([]byte, error)

MarshalJSON: json.Marshaler impl

func (IP4) NetworkOrder

func (ip IP4) NetworkOrder() uint32

func (IP4) Octets

func (ip IP4) Octets() (a, b, c, d byte)

func (IP4) String

func (ip IP4) String() string

func (IP4) StringSep

func (ip IP4) StringSep(sep string) string

func (IP4) ToIP

func (ip IP4) ToIP() net.IP

func (*IP4) UnmarshalJSON

func (ip *IP4) UnmarshalJSON(j []byte) error

UnmarshalJSON: json.Unmarshaler impl

type IP4Net

type IP4Net struct {
	IP        IP4
	PrefixLen uint
}

similar to net.IPNet but has uint based representation

func FromIPNet

func FromIPNet(n *net.IPNet) IP4Net

func (IP4Net) Contains

func (n IP4Net) Contains(ip IP4) bool

func (IP4Net) Empty

func (n IP4Net) Empty() bool

func (IP4Net) Equal

func (n IP4Net) Equal(other IP4Net) bool

func (IP4Net) MarshalJSON

func (n IP4Net) MarshalJSON() ([]byte, error)

MarshalJSON: json.Marshaler impl

func (IP4Net) Mask

func (n IP4Net) Mask() uint32

func (IP4Net) Network

func (n IP4Net) Network() IP4Net

func (IP4Net) Next

func (n IP4Net) Next() IP4Net

func (IP4Net) Overlaps

func (n IP4Net) Overlaps(other IP4Net) bool

func (IP4Net) String

func (n IP4Net) String() string

func (IP4Net) StringSep

func (n IP4Net) StringSep(octetSep, prefixSep string) string

func (IP4Net) ToIPNet

func (n IP4Net) ToIPNet() *net.IPNet

func (*IP4Net) UnmarshalJSON

func (n *IP4Net) UnmarshalJSON(j []byte) error

UnmarshalJSON: json.Unmarshaler impl