dns

Aug 27, 2018

Changes in this version

type Client

+ func (c *Client) SetServers(domain string, servers ...string)

type Config

+ AlwaysTCP bool

+ Records []string

+ Servers []string

type Server

+ func (s *Server) Start()

Aug 7, 2018

Changes in this version

type Client

+ func (c *Client) GetServers(domain string) []string

+ type Config struct

+ MaxTTL int

+ MinTTL int

+ Timeout int

Aug 2, 2018

Changes in this version

+ const ClassINET

+ const DefaultTTL

+ const LongTTL

+ const Query

+ const Response

+ func MarshalDomain(domain string) []byte

+ func UnmarshalHeader(b []byte, h *Header) error

+ type Cache struct

+ func NewCache() (c *Cache)

+ func (c *Cache) Get(k string) (v []byte)

+ func (c *Cache) Len() int

+ func (c *Cache) Put(k string, v []byte, ttl int)

+ type Client struct

+ func NewClient(dialer proxy.Dialer, upServers []string) (*Client, error)

+ func (c *Client) AddHandler(h HandleFunc)

+ func (c *Client) AddRecord(record string) error

+ func (c *Client) Exchange(reqBytes []byte, clientAddr string, preferTCP bool) ([]byte, error)

+ func (c *Client) GenResponse(domain string, ip string) (*Message, error)

+ func (c *Client) GetServer(domain string) string

+ func (c *Client) SetServer(domain string, servers ...string)

+ type HandleFunc func(Domain, ip string) error

+ type Header struct

+ ANCOUNT uint16

+ ARCOUNT uint16

+ Bits uint16

+ ID uint16

+ NSCOUNT uint16

+ QDCOUNT uint16

+ func (h *Header) Marshal() ([]byte, error)

+ func (h *Header) SetAncount(ancount int)

+ func (h *Header) SetMsgType(qr int)

+ func (h *Header) SetQdcount(qdcount int)

+ func (h *Header) SetTC(tc int)

+ type Message struct

+ Additional []*RR

+ Answers []*RR

+ Authority []*RR

+ Question *Question

+ func NewMessage(id uint16, msgType int) *Message

+ func UnmarshalMessage(b []byte) (*Message, error)

+ func (m *Message) AddAnswer(rr *RR) error

+ func (m *Message) Marshal() ([]byte, error)

+ func (m *Message) SetQuestion(q *Question) error

+ func (m *Message) UnmarshalDomain(b []byte) (string, int, error)

+ func (m *Message) UnmarshalDomainPoint(offset int) (string, error)

+ func (m *Message) UnmarshalQuestion(b []byte, q *Question) (n int, err error)

+ func (m *Message) UnmarshalRR(start int, rr *RR) (n int, err error)

type Question

+ func NewQuestion(qtype uint16, domain string) *Question

+ func (q *Question) Marshal() ([]byte, error)

type RR

+ NAME string

+ func NewRR() *RR

+ func (rr *RR) Marshal() ([]byte, error)

+ type Server struct

+ func NewServer(addr string, dialer proxy.Dialer, upServers []string) (*Server, error)

+ func (s *Server) ListenAndServe()

+ func (s *Server) ListenAndServeTCP()

+ func (s *Server) ListenAndServeUDP()

+ func (s *Server) ServeTCP(c net.Conn)

Jul 5, 2018

Changes in this version

+ const HeaderLen

+ const QTypeA

+ const QTypeAAAA

+ const UDPMaxLen

+ type AnswerHandler func(Domain, ip string) error

+ type DNS struct

+ AnswerHandlers []AnswerHandler

+ DNSServer string

+ DNSServerMap map[string]string

+ Tunnel bool

+ func NewDNS(addr, raddr string, dialer proxy.Dialer, tunnel bool) (*DNS, error)

+ func (s *DNS) AddAnswerHandler(h AnswerHandler)

+ func (s *DNS) Exchange(reqLen uint16, reqMsg []byte, addr string) (respLen uint16, respMsg []byte, err error)

+ func (s *DNS) GetServer(domain string) string

+ func (s *DNS) ListenAndServe()

+ func (s *DNS) ListenAndServeTCP()

+ func (s *DNS) ListenAndServeUDP()

+ func (s *DNS) ServeTCP(c net.Conn)

+ func (s *DNS) SetServer(domain, server string)

+ type Question struct

+ Offset int

+ QCLASS uint16

+ QNAME string

+ QTYPE uint16

+ type RR struct

+ CLASS uint16

+ IP string

+ RDATA []byte

+ RDLENGTH uint16

+ TTL uint32

+ TYPE uint16