utils

Documentation

Index

• Constants
• func ArpReqWithCtx(ctx context.Context, rCh chan<- int, AdvIP net.IP, ifName string) (int, error)
• func ArpResolver(dIP uint32)
• func ConvertToSolicitedNodeMulticast(ip net.IP) net.IP
• func FileCreate(fname string) int
• func FileExists(fname string) bool
• func GenerateRandomMAC() (net.HardwareAddr, error)
• func GetIfaceIP6Addr(ifName string) (addr net.IP, err error)
• func GetIfaceIPAddr(ifName string) (addr net.IP, err error)
• func HTTPSProber(urls string, cert tls.Certificate, certPool *x509.CertPool, resp string) bool
• func IPHostCIDRString(ip net.IP) string
• func IsIPHostAddr(ipString string) bool
• func IsIPHostNetAddr(ip net.IP) bool
• func MkTunFsIfNotExist() error
• func NetAdvertiseVI64Req(targetIP net.IP, ifName string) (int, error)
• func NetAdvertiseVIP4Req(AdvIP net.IP, ifName string) (int, error)
• func NetAdvertiseVIPReqWithCtx(ctx context.Context, rCh chan<- int, AdvIP net.IP, ifName string) (int, error)
• func Ntohll(i uint64) uint64
• func ReadPIDFile(pf string) int
• func SendArpReq(AdvIP net.IP, ifName string) (int, error)
• func WriteFile(fname, what string) error
• type Marker
  • func NewMarker(begin uint64, length uint64) *Marker
  • func (M *Marker) GetMarker() (uint64, error)
  • func (M *Marker) ReleaseMarker(id uint64) error

Constants

const (
	ICMPv6NeighborAdvertisement = 136 // ICMPv6 Type for Neighbor Advertisement
)

Functions

func ArpReqWithCtx

func ArpReqWithCtx(ctx context.Context, rCh chan<- int, AdvIP net.IP, ifName string) (int, error)

ArpReqWithCtx - sends a arp req given the DIP, SIP and interface name

func ArpResolver

func ArpResolver(dIP uint32)

ArpResolver - Try to resolve ARP for given address

func ConvertToSolicitedNodeMulticast

func ConvertToSolicitedNodeMulticast(ip net.IP) net.IP

ConvertToSolicitedNodeMulticast converts an IPv6 address to its solicited-node multicast address

func FileCreate

func FileCreate(fname string) int

FileCreate - Create a file

func FileExists

func FileExists(fname string) bool

FileExists - Check if file exists

func GenerateRandomMAC

func GenerateRandomMAC() (net.HardwareAddr, error)

func GetIfaceIP6Addr

func GetIfaceIP6Addr(ifName string) (addr net.IP, err error)

GetIfaceIP6Addr - Get interface IP address

func GetIfaceIPAddr

func GetIfaceIPAddr(ifName string) (addr net.IP, err error)

GetIfaceIPAddr - Get interface IP address

func HTTPSProber

func HTTPSProber(urls string, cert tls.Certificate, certPool *x509.CertPool, resp string) bool

HTTPSProber - Do a https probe for given url returns true/false depending on whether probing was successful

func IPHostCIDRString

func IPHostCIDRString(ip net.IP) string

sIPHostNetAddr - Check if provided address is a local subnet

func IsIPHostAddr

func IsIPHostAddr(ipString string) bool

IsIPHostAddr - Check if provided address is a local address

func IsIPHostNetAddr

func IsIPHostNetAddr(ip net.IP) bool

IsIPHostNetAddr - Check if provided address is a local subnet

func MkTunFsIfNotExist

func MkTunFsIfNotExist() error

func NetAdvertiseVI64Req

func NetAdvertiseVI64Req(targetIP net.IP, ifName string) (int, error)

func NetAdvertiseVIP4Req

func NetAdvertiseVIP4Req(AdvIP net.IP, ifName string) (int, error)

NetAdvertiseVIP4Req - sends a gratuitous arp reply given the DIP, SIP and interface name

func NetAdvertiseVIPReqWithCtx

func NetAdvertiseVIPReqWithCtx(ctx context.Context, rCh chan<- int, AdvIP net.IP, ifName string) (int, error)

NetAdvertiseVIPReqWithCtx - sends a gratuitous arp reply given the DIP interface name

func Ntohll

func Ntohll(i uint64) uint64

Ntohll - Network to host byte-order long long

func ReadPIDFile

func ReadPIDFile(pf string) int

ReadPIDFile - Read a PID file

func SendArpReq

func SendArpReq(AdvIP net.IP, ifName string) (int, error)

SendArpReq - sends a arp request given the DIP, SIP and interface name

func WriteFile

func WriteFile(fname, what string) error

WriteFile - Write a string to a file

Types

type Marker

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

Marker - context container

func NewMarker

func NewMarker(begin uint64, length uint64) *Marker

NewMarker - Allocate a set of markers

func (*Marker) GetMarker

func (M *Marker) GetMarker() (uint64, error)

GetMarker - Get next available marker

func (*Marker) ReleaseMarker

func (M *Marker) ReleaseMarker(id uint64) error

ReleaseMarker - Return a marker to the available list