dns

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v1.7.0 Latest Latest Go to latest Published: Aug 31, 2026 License: Apache-2.0 Imports: 18 Imported by: 0

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Repository

github.com/gravitl/netclient

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Documentation ¶

Index ¶

Variables
func ClearEgressDomainPatterns()
func Configure() error
func Init() error
func LookupHostViaPublicDNS(name string) ([]net.IP, error)
func MatchesEgressDomain(name string) bool
func NormalizeEgressLookupDomain(domain string) (string, error)
func ResolveEgressQuery(r *dns.Msg) (*dns.Msg, error)
func SyncDNS(network string, dnsEntries []models.DNSEntry) error
func SyncEgressDomainPatterns(domains []models.EgressDomain)
type DNSResolver
- func GetDNSResolverInstance() *DNSResolver
type DNSServer
- func GetDNSServerInstance() *DNSServer
- func (dnsServer *DNSServer) Start()
- func (dnsServer *DNSServer) Stop()

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ErrNXDomain      = errors.New("non existent domain")
	ErrNoQTypeRecord = errors.New("domain exists but no record matching the question type")
)

Functions ¶

func ClearEgressDomainPatterns ¶ added in v1.6.0

func ClearEgressDomainPatterns()

ClearEgressDomainPatterns removes egress-domain public DNS overrides.

func Configure ¶ added in v1.5.0

func Configure() error

func Init ¶ added in v1.5.0

func Init() error

func LookupHostViaPublicDNS ¶ added in v1.6.0

func LookupHostViaPublicDNS(name string) ([]net.IP, error)

LookupHostViaPublicDNS resolves a hostname using configured egress DNS nameservers. It falls back to public resolvers (8.8.8.8, then 1.1.1.1) when no nameserver matches. It stops at the first resolver that returns addresses.

func MatchesEgressDomain ¶ added in v1.6.0

func MatchesEgressDomain(name string) bool

MatchesEgressDomain reports whether name should be resolved via public DNS instead of local Netmaker records.

func NormalizeEgressLookupDomain ¶ added in v1.6.0

func NormalizeEgressLookupDomain(domain string) (string, error)

NormalizeEgressLookupDomain strips a leading "*." used in egress domain policy names.

func ResolveEgressQuery ¶ added in v1.6.0

func ResolveEgressQuery(r *dns.Msg) (*dns.Msg, error)

ResolveEgressQuery forwards a DNS query to egress nameservers when the name is an egress domain.

func SyncDNS ¶

func SyncDNS(network string, dnsEntries []models.DNSEntry) error

Sync up the DNS entries with NM server

func SyncEgressDomainPatterns ¶ added in v1.6.0

func SyncEgressDomainPatterns(domains []models.EgressDomain)

SyncEgressDomainPatterns updates the list of domain patterns answered via public DNS.

Types ¶

type DNSResolver ¶

type DNSResolver struct {
	DnsEntriesCacheStore map[string]dns.RR
	DnsEntriesCacheMap   map[string][]dnsRecord
}

var DnsResolver *DNSResolver

func GetDNSResolverInstance ¶

func GetDNSResolverInstance() *DNSResolver

GetInstance

func (*DNSResolver) Lookup ¶

func (d *DNSResolver) Lookup(m *dns.Msg) (dns.RR, error)

Lookup DNS entry in local directory

func (*DNSResolver) RegisterA ¶

func (d *DNSResolver) RegisterA(record dnsRecord) error

Register A record

func (*DNSResolver) RegisterAAAA ¶

func (d *DNSResolver) RegisterAAAA(record dnsRecord) error

Register AAAA record

type DNSServer ¶

type DNSServer struct {
	DnsServer []*dns.Server
	AddrList  []string
	AddrStr   string
}

func GetDNSServerInstance ¶

func GetDNSServerInstance() *DNSServer

GetInstance

func (*DNSServer) Start ¶

func (dnsServer *DNSServer) Start()

Start the DNS listener

func (*DNSServer) Stop ¶

func (dnsServer *DNSServer) Stop()

Stop the DNS listener

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
cache
config
querycache

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