common

Documentation

Index

• Constants
• func IsDomainNotExist(err error) bool
• func NsLookup(domain string, qtype uint16, net, dnsServerAddr string) (*dns.Msg, error)
• func ReadCache(domain string, qtype uint16, ttl int64) []dns.RR
• func SetupDnsServer(dnsHandler dns.Handler, port int, net string) error
• func WriteCache(domain string, qtype uint16, answer []dns.RR, timestamp int64)
• type DomainNotExistError
  • func (e DomainNotExistError) Error() string
• type NsEntry

Constants

const (
	// Localhost ip of localhost
	Localhost = "127.0.0.1"
	// YyyyMmDdHhMmSs timestamp format
	YyyyMmDdHhMmSs = "2006-01-02 15:04:05"
	// StandardSshPort standard ssh port
	StandardSshPort = 22
	// StandardDnsPort standard dns port
	StandardDnsPort = 53

	// EnvVarLocalDomains environment variable for local domain config
	EnvVarLocalDomains = "KT_LOCAL_DOMAIN"
	// EnvVarDnsProtocol environment variable for shadow pod dns protocol
	EnvVarDnsProtocol = "KT_DNS_PROTOCOL"
	// EnvVarLogLevel environment variable for shadow pod log level
	EnvVarLogLevel = "KT_LOG_LEVEL"
)

Functions

func IsDomainNotExist

func IsDomainNotExist(err error) bool

IsDomainNotExist check the error type

func NsLookup

func NsLookup(domain string, qtype uint16, net, dnsServerAddr string) (*dns.Msg, error)

NsLookup query domain record, dnsServerAddr use '<ip>:<port>' format

func ReadCache

func ReadCache(domain string, qtype uint16, ttl int64) []dns.RR

ReadCache fetch from cache

func SetupDnsServer

func SetupDnsServer(dnsHandler dns.Handler, port int, net string) error

SetupDnsServer start dns server on specified port

func WriteCache

func WriteCache(domain string, qtype uint16, answer []dns.RR, timestamp int64)

WriteCache record to cache

Types

type DomainNotExistError

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

DomainNotExistError ...

func (DomainNotExistError) Error

func (e DomainNotExistError) Error() string

type NsEntry

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