dns

package

v1.19.2 Latest Latest Go to latest Published: Jul 13, 2016 License: MIT Imports: 11 Imported by: 0

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const (
	DefaultTTL       = uint32(3600)
	CleanupInterval  = time.Second * 120
	CleanupThreshold = 512
)

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const (
	APP_ID = app.ID(2)
)

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const (
	QueryTimeout = time.Second * 8
)

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type ARecord struct {
	IPs    []net.IP
	Expire time.Time
}

type CacheServer struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewCacheServer(space app.Space, config *Config) *CacheServer

func (this *CacheServer) Get(domain string) []net.IP

func (this *CacheServer) GetCached(domain string) []net.IP

@Private

func (this *CacheServer) Release()

type Config struct {
	Hosts       map[string]net.IP
	NameServers []v2net.Destination
}

type DomainRecord struct {
	A *ARecord
}

type LocalNameServer struct {
}

func (this *LocalNameServer) QueryA(domain string) <-chan *ARecord

type NameServer interface {
	QueryA(domain string) <-chan *ARecord
}

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

type Server interface {
	Get(domain string) []net.IP
}

A DnsCache is an internal cache of DNS resolutions.

type UDPNameServer struct {
	sync.Mutex
	// contains filtered or unexported fields
}

func NewUDPNameServer(address v2net.Destination, dispatcher dispatcher.PacketDispatcher) *UDPNameServer

func (this *UDPNameServer) AssignUnusedID(response chan<- *ARecord) uint16

@Private

func (this *UDPNameServer) BuildQueryA(domain string, id uint16) *alloc.Buffer

func (this *UDPNameServer) Cleanup()

@Private

func (this *UDPNameServer) DispatchQuery(payload *alloc.Buffer)

func (this *UDPNameServer) HandleResponse(dest v2net.Destination, payload *alloc.Buffer)

@Private

func (this *UDPNameServer) QueryA(domain string) <-chan *ARecord