1644 lines
45 KiB
Go
1644 lines
45 KiB
Go
package dns
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import (
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"encoding/base64"
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"fmt"
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"net"
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"strconv"
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"strings"
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"time"
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)
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type (
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Type uint16 // Type is a DNS type.
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Class uint16 // Class is a DNS class.
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Name string // Name is a DNS domain name.
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)
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// Packet formats
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// Wire constants and supported types.
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const (
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// valid RR_Header.Rrtype and Question.qtype
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TypeNone uint16 = 0
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TypeA uint16 = 1
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TypeNS uint16 = 2
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TypeMD uint16 = 3
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TypeMF uint16 = 4
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TypeCNAME uint16 = 5
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TypeSOA uint16 = 6
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TypeMB uint16 = 7
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TypeMG uint16 = 8
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TypeMR uint16 = 9
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TypeNULL uint16 = 10
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TypeWKS uint16 = 11
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TypePTR uint16 = 12
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TypeHINFO uint16 = 13
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TypeMINFO uint16 = 14
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TypeMX uint16 = 15
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TypeTXT uint16 = 16
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TypeRP uint16 = 17
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TypeAFSDB uint16 = 18
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TypeX25 uint16 = 19
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TypeISDN uint16 = 20
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TypeRT uint16 = 21
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TypeNSAP uint16 = 22
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TypeNSAPPTR uint16 = 23
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TypeSIG uint16 = 24
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TypeKEY uint16 = 25
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TypePX uint16 = 26
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TypeGPOS uint16 = 27
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TypeAAAA uint16 = 28
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TypeLOC uint16 = 29
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TypeNXT uint16 = 30
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TypeEID uint16 = 31
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TypeNIMLOC uint16 = 32
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TypeSRV uint16 = 33
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TypeATMA uint16 = 34
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TypeNAPTR uint16 = 35
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TypeKX uint16 = 36
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TypeCERT uint16 = 37
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TypeDNAME uint16 = 39
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TypeOPT uint16 = 41 // EDNS
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TypeDS uint16 = 43
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TypeSSHFP uint16 = 44
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TypeIPSECKEY uint16 = 45
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TypeRRSIG uint16 = 46
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TypeNSEC uint16 = 47
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TypeDNSKEY uint16 = 48
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TypeDHCID uint16 = 49
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TypeNSEC3 uint16 = 50
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TypeNSEC3PARAM uint16 = 51
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TypeTLSA uint16 = 52
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TypeHIP uint16 = 55
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TypeNINFO uint16 = 56
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TypeRKEY uint16 = 57
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TypeTALINK uint16 = 58
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TypeCDS uint16 = 59
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TypeOPENPGPKEY uint16 = 61
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TypeSPF uint16 = 99
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TypeUINFO uint16 = 100
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TypeUID uint16 = 101
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TypeGID uint16 = 102
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TypeUNSPEC uint16 = 103
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TypeNID uint16 = 104
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TypeL32 uint16 = 105
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TypeL64 uint16 = 106
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TypeLP uint16 = 107
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TypeEUI48 uint16 = 108
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TypeEUI64 uint16 = 109
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TypeTKEY uint16 = 249
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TypeTSIG uint16 = 250
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// valid Question.Qtype only
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TypeIXFR uint16 = 251
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TypeAXFR uint16 = 252
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TypeMAILB uint16 = 253
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TypeMAILA uint16 = 254
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TypeANY uint16 = 255
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TypeURI uint16 = 256
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TypeCAA uint16 = 257
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TypeTA uint16 = 32768
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TypeDLV uint16 = 32769
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TypeReserved uint16 = 65535
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// valid Question.Qclass
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ClassINET = 1
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ClassCSNET = 2
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ClassCHAOS = 3
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ClassHESIOD = 4
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ClassNONE = 254
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ClassANY = 255
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// Msg.rcode
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RcodeSuccess = 0
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RcodeFormatError = 1
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RcodeServerFailure = 2
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RcodeNameError = 3
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RcodeNotImplemented = 4
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RcodeRefused = 5
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RcodeYXDomain = 6
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RcodeYXRrset = 7
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RcodeNXRrset = 8
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RcodeNotAuth = 9
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RcodeNotZone = 10
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RcodeBadSig = 16 // TSIG
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RcodeBadVers = 16 // EDNS0
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RcodeBadKey = 17
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RcodeBadTime = 18
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RcodeBadMode = 19 // TKEY
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RcodeBadName = 20
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RcodeBadAlg = 21
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RcodeBadTrunc = 22 // TSIG
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// Opcode
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OpcodeQuery = 0
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OpcodeIQuery = 1
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OpcodeStatus = 2
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// There is no 3
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OpcodeNotify = 4
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OpcodeUpdate = 5
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)
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// The wire format for the DNS packet header.
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type Header struct {
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Id uint16
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Bits uint16
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Qdcount, Ancount, Nscount, Arcount uint16
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}
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const (
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// Header.Bits
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_QR = 1 << 15 // query/response (response=1)
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_AA = 1 << 10 // authoritative
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_TC = 1 << 9 // truncated
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_RD = 1 << 8 // recursion desired
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_RA = 1 << 7 // recursion available
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_Z = 1 << 6 // Z
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_AD = 1 << 5 // authticated data
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_CD = 1 << 4 // checking disabled
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_LOC_EQUATOR = 1 << 31 // RFC 1876, Section 2.
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)
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// DNS queries.
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type Question struct {
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Name string `dns:"cdomain-name"` // "cdomain-name" specifies encoding (and may be compressed)
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Qtype uint16
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Qclass uint16
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}
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func (q *Question) String() (s string) {
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// prefix with ; (as in dig)
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s = ";" + sprintName(q.Name) + "\t"
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s += Class(q.Qclass).String() + "\t"
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s += " " + Type(q.Qtype).String()
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return s
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}
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func (q *Question) len() int {
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l := len(q.Name) + 1
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return l + 4
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}
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type ANY struct {
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Hdr RR_Header
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// Does not have any rdata
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}
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func (rr *ANY) Header() *RR_Header { return &rr.Hdr }
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func (rr *ANY) copy() RR { return &ANY{*rr.Hdr.copyHeader()} }
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func (rr *ANY) String() string { return rr.Hdr.String() }
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func (rr *ANY) len() int { return rr.Hdr.len() }
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type CNAME struct {
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Hdr RR_Header
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Target string `dns:"cdomain-name"`
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}
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func (rr *CNAME) Header() *RR_Header { return &rr.Hdr }
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func (rr *CNAME) copy() RR { return &CNAME{*rr.Hdr.copyHeader(), sprintName(rr.Target)} }
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func (rr *CNAME) String() string { return rr.Hdr.String() + rr.Target }
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func (rr *CNAME) len() int { return rr.Hdr.len() + len(rr.Target) + 1 }
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type HINFO struct {
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Hdr RR_Header
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Cpu string
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Os string
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}
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func (rr *HINFO) Header() *RR_Header { return &rr.Hdr }
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func (rr *HINFO) copy() RR { return &HINFO{*rr.Hdr.copyHeader(), rr.Cpu, rr.Os} }
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func (rr *HINFO) String() string { return rr.Hdr.String() + rr.Cpu + " " + rr.Os }
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func (rr *HINFO) len() int { return rr.Hdr.len() + len(rr.Cpu) + len(rr.Os) }
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type MB struct {
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Hdr RR_Header
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Mb string `dns:"cdomain-name"`
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}
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func (rr *MB) Header() *RR_Header { return &rr.Hdr }
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func (rr *MB) copy() RR { return &MB{*rr.Hdr.copyHeader(), sprintName(rr.Mb)} }
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func (rr *MB) String() string { return rr.Hdr.String() + rr.Mb }
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func (rr *MB) len() int { return rr.Hdr.len() + len(rr.Mb) + 1 }
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type MG struct {
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Hdr RR_Header
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Mg string `dns:"cdomain-name"`
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}
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func (rr *MG) Header() *RR_Header { return &rr.Hdr }
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func (rr *MG) copy() RR { return &MG{*rr.Hdr.copyHeader(), rr.Mg} }
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func (rr *MG) len() int { l := len(rr.Mg) + 1; return rr.Hdr.len() + l }
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func (rr *MG) String() string { return rr.Hdr.String() + sprintName(rr.Mg) }
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type MINFO struct {
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Hdr RR_Header
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Rmail string `dns:"cdomain-name"`
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Email string `dns:"cdomain-name"`
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}
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func (rr *MINFO) Header() *RR_Header { return &rr.Hdr }
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func (rr *MINFO) copy() RR { return &MINFO{*rr.Hdr.copyHeader(), rr.Rmail, rr.Email} }
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func (rr *MINFO) String() string {
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return rr.Hdr.String() + sprintName(rr.Rmail) + " " + sprintName(rr.Email)
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}
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func (rr *MINFO) len() int {
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l := len(rr.Rmail) + 1
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n := len(rr.Email) + 1
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return rr.Hdr.len() + l + n
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}
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type MR struct {
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Hdr RR_Header
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Mr string `dns:"cdomain-name"`
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}
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func (rr *MR) Header() *RR_Header { return &rr.Hdr }
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func (rr *MR) copy() RR { return &MR{*rr.Hdr.copyHeader(), rr.Mr} }
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func (rr *MR) len() int { l := len(rr.Mr) + 1; return rr.Hdr.len() + l }
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func (rr *MR) String() string {
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return rr.Hdr.String() + sprintName(rr.Mr)
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}
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type MF struct {
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Hdr RR_Header
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Mf string `dns:"cdomain-name"`
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}
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func (rr *MF) Header() *RR_Header { return &rr.Hdr }
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func (rr *MF) copy() RR { return &MF{*rr.Hdr.copyHeader(), rr.Mf} }
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func (rr *MF) len() int { return rr.Hdr.len() + len(rr.Mf) + 1 }
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func (rr *MF) String() string {
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return rr.Hdr.String() + " " + sprintName(rr.Mf)
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}
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type MD struct {
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Hdr RR_Header
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Md string `dns:"cdomain-name"`
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}
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func (rr *MD) Header() *RR_Header { return &rr.Hdr }
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func (rr *MD) copy() RR { return &MD{*rr.Hdr.copyHeader(), rr.Md} }
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func (rr *MD) len() int { return rr.Hdr.len() + len(rr.Md) + 1 }
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func (rr *MD) String() string {
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return rr.Hdr.String() + " " + sprintName(rr.Md)
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}
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type MX struct {
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Hdr RR_Header
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Preference uint16
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Mx string `dns:"cdomain-name"`
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}
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func (rr *MX) Header() *RR_Header { return &rr.Hdr }
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func (rr *MX) copy() RR { return &MX{*rr.Hdr.copyHeader(), rr.Preference, rr.Mx} }
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func (rr *MX) len() int { l := len(rr.Mx) + 1; return rr.Hdr.len() + l + 2 }
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func (rr *MX) String() string {
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return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Mx)
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}
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type AFSDB struct {
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Hdr RR_Header
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Subtype uint16
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Hostname string `dns:"cdomain-name"`
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}
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func (rr *AFSDB) Header() *RR_Header { return &rr.Hdr }
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func (rr *AFSDB) copy() RR { return &AFSDB{*rr.Hdr.copyHeader(), rr.Subtype, rr.Hostname} }
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func (rr *AFSDB) len() int { l := len(rr.Hostname) + 1; return rr.Hdr.len() + l + 2 }
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func (rr *AFSDB) String() string {
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return rr.Hdr.String() + strconv.Itoa(int(rr.Subtype)) + " " + sprintName(rr.Hostname)
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}
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type X25 struct {
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Hdr RR_Header
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PSDNAddress string
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}
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func (rr *X25) Header() *RR_Header { return &rr.Hdr }
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func (rr *X25) copy() RR { return &X25{*rr.Hdr.copyHeader(), rr.PSDNAddress} }
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func (rr *X25) len() int { return rr.Hdr.len() + len(rr.PSDNAddress) + 1 }
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func (rr *X25) String() string {
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return rr.Hdr.String() + rr.PSDNAddress
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}
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type RT struct {
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Hdr RR_Header
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Preference uint16
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Host string `dns:"cdomain-name"`
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}
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func (rr *RT) Header() *RR_Header { return &rr.Hdr }
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func (rr *RT) copy() RR { return &RT{*rr.Hdr.copyHeader(), rr.Preference, rr.Host} }
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func (rr *RT) len() int { l := len(rr.Host) + 1; return rr.Hdr.len() + l + 2 }
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func (rr *RT) String() string {
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return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Host)
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}
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type NS struct {
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Hdr RR_Header
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Ns string `dns:"cdomain-name"`
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}
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func (rr *NS) Header() *RR_Header { return &rr.Hdr }
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func (rr *NS) len() int { l := len(rr.Ns) + 1; return rr.Hdr.len() + l }
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func (rr *NS) copy() RR { return &NS{*rr.Hdr.copyHeader(), rr.Ns} }
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func (rr *NS) String() string {
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return rr.Hdr.String() + sprintName(rr.Ns)
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}
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type PTR struct {
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Hdr RR_Header
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Ptr string `dns:"cdomain-name"`
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}
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func (rr *PTR) Header() *RR_Header { return &rr.Hdr }
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func (rr *PTR) copy() RR { return &PTR{*rr.Hdr.copyHeader(), rr.Ptr} }
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func (rr *PTR) len() int { l := len(rr.Ptr) + 1; return rr.Hdr.len() + l }
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func (rr *PTR) String() string {
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return rr.Hdr.String() + sprintName(rr.Ptr)
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}
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type RP struct {
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Hdr RR_Header
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Mbox string `dns:"domain-name"`
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Txt string `dns:"domain-name"`
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}
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func (rr *RP) Header() *RR_Header { return &rr.Hdr }
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func (rr *RP) copy() RR { return &RP{*rr.Hdr.copyHeader(), rr.Mbox, rr.Txt} }
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func (rr *RP) len() int { return rr.Hdr.len() + len(rr.Mbox) + 1 + len(rr.Txt) + 1 }
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func (rr *RP) String() string {
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return rr.Hdr.String() + rr.Mbox + " " + sprintTxt([]string{rr.Txt})
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}
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type SOA struct {
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Hdr RR_Header
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Ns string `dns:"cdomain-name"`
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Mbox string `dns:"cdomain-name"`
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Serial uint32
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Refresh uint32
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Retry uint32
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Expire uint32
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Minttl uint32
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}
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func (rr *SOA) Header() *RR_Header { return &rr.Hdr }
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func (rr *SOA) copy() RR {
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return &SOA{*rr.Hdr.copyHeader(), rr.Ns, rr.Mbox, rr.Serial, rr.Refresh, rr.Retry, rr.Expire, rr.Minttl}
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}
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func (rr *SOA) String() string {
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return rr.Hdr.String() + sprintName(rr.Ns) + " " + sprintName(rr.Mbox) +
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" " + strconv.FormatInt(int64(rr.Serial), 10) +
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" " + strconv.FormatInt(int64(rr.Refresh), 10) +
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" " + strconv.FormatInt(int64(rr.Retry), 10) +
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" " + strconv.FormatInt(int64(rr.Expire), 10) +
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" " + strconv.FormatInt(int64(rr.Minttl), 10)
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}
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func (rr *SOA) len() int {
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l := len(rr.Ns) + 1
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n := len(rr.Mbox) + 1
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return rr.Hdr.len() + l + n + 20
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}
|
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|
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type TXT struct {
|
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Hdr RR_Header
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Txt []string `dns:"txt"`
|
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}
|
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|
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func (rr *TXT) Header() *RR_Header { return &rr.Hdr }
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func (rr *TXT) copy() RR {
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cp := make([]string, len(rr.Txt), cap(rr.Txt))
|
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copy(cp, rr.Txt)
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return &TXT{*rr.Hdr.copyHeader(), cp}
|
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}
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|
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func (rr *TXT) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) }
|
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|
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func sprintName(s string) string {
|
|
src := []byte(s)
|
|
dst := make([]byte, 0, len(src))
|
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for i := 0; i < len(src); {
|
|
if i+1 < len(src) && src[i] == '\\' && src[i+1] == '.' {
|
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dst = append(dst, src[i:i+2]...)
|
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i += 2
|
|
} else {
|
|
b, n := nextByte(src, i)
|
|
if n == 0 {
|
|
i++ // dangling back slash
|
|
} else if b == '.' {
|
|
dst = append(dst, b)
|
|
} else {
|
|
dst = appendDomainNameByte(dst, b)
|
|
}
|
|
i += n
|
|
}
|
|
}
|
|
return string(dst)
|
|
}
|
|
|
|
func sprintTxt(txt []string) string {
|
|
var out []byte
|
|
for i, s := range txt {
|
|
if i > 0 {
|
|
out = append(out, ` "`...)
|
|
} else {
|
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out = append(out, '"')
|
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}
|
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bs := []byte(s)
|
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for j := 0; j < len(bs); {
|
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b, n := nextByte(bs, j)
|
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if n == 0 {
|
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break
|
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}
|
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out = appendTXTStringByte(out, b)
|
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j += n
|
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}
|
|
out = append(out, '"')
|
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}
|
|
return string(out)
|
|
}
|
|
|
|
func appendDomainNameByte(s []byte, b byte) []byte {
|
|
if b == '.' || b == '(' || b == ')' || b == ';' || b == ' ' || b == '\'' || b == '@' {
|
|
return append(s, '\\', b)
|
|
}
|
|
return appendTXTStringByte(s, b)
|
|
}
|
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|
|
func appendTXTStringByte(s []byte, b byte) []byte {
|
|
if b == '"' {
|
|
return append(s, `\"`...)
|
|
} else if b == '\\' {
|
|
return append(s, `\\`...)
|
|
} else if b == '\t' {
|
|
return append(s, `\t`...)
|
|
} else if b == '\r' {
|
|
return append(s, `\r`...)
|
|
} else if b == '\n' {
|
|
return append(s, `\n`...)
|
|
} else if b < ' ' || b > '~' {
|
|
return append(s, fmt.Sprintf("\\%03d", b)...)
|
|
}
|
|
return append(s, b)
|
|
}
|
|
|
|
func nextByte(b []byte, offset int) (byte, int) {
|
|
if offset >= len(b) {
|
|
return 0, 0
|
|
}
|
|
if b[offset] != '\\' {
|
|
// not an escape sequence
|
|
return b[offset], 1
|
|
}
|
|
switch len(b) - offset {
|
|
case 1: // dangling escape
|
|
return 0, 0
|
|
case 2, 3: // too short to be \ddd
|
|
default: // maybe \ddd
|
|
if isDigit(b[offset+1]) && isDigit(b[offset+2]) && isDigit(b[offset+3]) {
|
|
return dddToByte(b[offset+1:]), 4
|
|
}
|
|
}
|
|
// not \ddd, maybe a control char
|
|
switch b[offset+1] {
|
|
case 't':
|
|
return '\t', 2
|
|
case 'r':
|
|
return '\r', 2
|
|
case 'n':
|
|
return '\n', 2
|
|
default:
|
|
return b[offset+1], 2
|
|
}
|
|
}
|
|
|
|
func (rr *TXT) len() int {
|
|
l := rr.Hdr.len()
|
|
for _, t := range rr.Txt {
|
|
l += len(t) + 1
|
|
}
|
|
return l
|
|
}
|
|
|
|
type SPF struct {
|
|
Hdr RR_Header
|
|
Txt []string `dns:"txt"`
|
|
}
|
|
|
|
func (rr *SPF) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *SPF) copy() RR {
|
|
cp := make([]string, len(rr.Txt), cap(rr.Txt))
|
|
copy(cp, rr.Txt)
|
|
return &SPF{*rr.Hdr.copyHeader(), cp}
|
|
}
|
|
|
|
func (rr *SPF) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) }
|
|
|
|
func (rr *SPF) len() int {
|
|
l := rr.Hdr.len()
|
|
for _, t := range rr.Txt {
|
|
l += len(t) + 1
|
|
}
|
|
return l
|
|
}
|
|
|
|
type SRV struct {
|
|
Hdr RR_Header
|
|
Priority uint16
|
|
Weight uint16
|
|
Port uint16
|
|
Target string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *SRV) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *SRV) len() int { l := len(rr.Target) + 1; return rr.Hdr.len() + l + 6 }
|
|
func (rr *SRV) copy() RR {
|
|
return &SRV{*rr.Hdr.copyHeader(), rr.Priority, rr.Weight, rr.Port, rr.Target}
|
|
}
|
|
|
|
func (rr *SRV) String() string {
|
|
return rr.Hdr.String() +
|
|
strconv.Itoa(int(rr.Priority)) + " " +
|
|
strconv.Itoa(int(rr.Weight)) + " " +
|
|
strconv.Itoa(int(rr.Port)) + " " + sprintName(rr.Target)
|
|
}
|
|
|
|
type NAPTR struct {
|
|
Hdr RR_Header
|
|
Order uint16
|
|
Preference uint16
|
|
Flags string
|
|
Service string
|
|
Regexp string
|
|
Replacement string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *NAPTR) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NAPTR) copy() RR {
|
|
return &NAPTR{*rr.Hdr.copyHeader(), rr.Order, rr.Preference, rr.Flags, rr.Service, rr.Regexp, rr.Replacement}
|
|
}
|
|
|
|
func (rr *NAPTR) String() string {
|
|
return rr.Hdr.String() +
|
|
strconv.Itoa(int(rr.Order)) + " " +
|
|
strconv.Itoa(int(rr.Preference)) + " " +
|
|
"\"" + rr.Flags + "\" " +
|
|
"\"" + rr.Service + "\" " +
|
|
"\"" + rr.Regexp + "\" " +
|
|
rr.Replacement
|
|
}
|
|
|
|
func (rr *NAPTR) len() int {
|
|
return rr.Hdr.len() + 4 + len(rr.Flags) + 1 + len(rr.Service) + 1 +
|
|
len(rr.Regexp) + 1 + len(rr.Replacement) + 1
|
|
}
|
|
|
|
// See RFC 4398.
|
|
type CERT struct {
|
|
Hdr RR_Header
|
|
Type uint16
|
|
KeyTag uint16
|
|
Algorithm uint8
|
|
Certificate string `dns:"base64"`
|
|
}
|
|
|
|
func (rr *CERT) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *CERT) copy() RR {
|
|
return &CERT{*rr.Hdr.copyHeader(), rr.Type, rr.KeyTag, rr.Algorithm, rr.Certificate}
|
|
}
|
|
|
|
func (rr *CERT) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Type)) +
|
|
" " + strconv.Itoa(int(rr.KeyTag)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + rr.Certificate
|
|
}
|
|
|
|
func (rr *CERT) len() int {
|
|
return rr.Hdr.len() + 5 +
|
|
base64.StdEncoding.DecodedLen(len(rr.Certificate))
|
|
}
|
|
|
|
// See RFC 2672.
|
|
type DNAME struct {
|
|
Hdr RR_Header
|
|
Target string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *DNAME) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *DNAME) copy() RR { return &DNAME{*rr.Hdr.copyHeader(), rr.Target} }
|
|
func (rr *DNAME) len() int { l := len(rr.Target) + 1; return rr.Hdr.len() + l }
|
|
|
|
func (rr *DNAME) String() string {
|
|
return rr.Hdr.String() + sprintName(rr.Target)
|
|
}
|
|
|
|
type A struct {
|
|
Hdr RR_Header
|
|
A net.IP `dns:"a"`
|
|
}
|
|
|
|
func (rr *A) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *A) copy() RR { return &A{*rr.Hdr.copyHeader(), copyIP(rr.A)} }
|
|
func (rr *A) len() int { return rr.Hdr.len() + net.IPv4len }
|
|
|
|
func (rr *A) String() string {
|
|
if rr.A == nil {
|
|
return rr.Hdr.String()
|
|
}
|
|
return rr.Hdr.String() + rr.A.String()
|
|
}
|
|
|
|
type AAAA struct {
|
|
Hdr RR_Header
|
|
AAAA net.IP `dns:"aaaa"`
|
|
}
|
|
|
|
func (rr *AAAA) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *AAAA) copy() RR { return &AAAA{*rr.Hdr.copyHeader(), copyIP(rr.AAAA)} }
|
|
func (rr *AAAA) len() int { return rr.Hdr.len() + net.IPv6len }
|
|
|
|
func (rr *AAAA) String() string {
|
|
if rr.AAAA == nil {
|
|
return rr.Hdr.String()
|
|
}
|
|
return rr.Hdr.String() + rr.AAAA.String()
|
|
}
|
|
|
|
type PX struct {
|
|
Hdr RR_Header
|
|
Preference uint16
|
|
Map822 string `dns:"domain-name"`
|
|
Mapx400 string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *PX) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *PX) copy() RR { return &PX{*rr.Hdr.copyHeader(), rr.Preference, rr.Map822, rr.Mapx400} }
|
|
func (rr *PX) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Map822) + " " + sprintName(rr.Mapx400)
|
|
}
|
|
func (rr *PX) len() int { return rr.Hdr.len() + 2 + len(rr.Map822) + 1 + len(rr.Mapx400) + 1 }
|
|
|
|
type GPOS struct {
|
|
Hdr RR_Header
|
|
Longitude string
|
|
Latitude string
|
|
Altitude string
|
|
}
|
|
|
|
func (rr *GPOS) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *GPOS) copy() RR { return &GPOS{*rr.Hdr.copyHeader(), rr.Longitude, rr.Latitude, rr.Altitude} }
|
|
func (rr *GPOS) len() int {
|
|
return rr.Hdr.len() + len(rr.Longitude) + len(rr.Latitude) + len(rr.Altitude) + 3
|
|
}
|
|
func (rr *GPOS) String() string {
|
|
return rr.Hdr.String() + rr.Longitude + " " + rr.Latitude + " " + rr.Altitude
|
|
}
|
|
|
|
type LOC struct {
|
|
Hdr RR_Header
|
|
Version uint8
|
|
Size uint8
|
|
HorizPre uint8
|
|
VertPre uint8
|
|
Latitude uint32
|
|
Longitude uint32
|
|
Altitude uint32
|
|
}
|
|
|
|
func (rr *LOC) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *LOC) len() int { return rr.Hdr.len() + 4 + 12 }
|
|
func (rr *LOC) copy() RR {
|
|
return &LOC{*rr.Hdr.copyHeader(), rr.Version, rr.Size, rr.HorizPre, rr.VertPre, rr.Latitude, rr.Longitude, rr.Altitude}
|
|
}
|
|
|
|
func (rr *LOC) String() string {
|
|
s := rr.Hdr.String()
|
|
// Copied from ldns
|
|
// Latitude
|
|
lat := rr.Latitude
|
|
north := "N"
|
|
if lat > _LOC_EQUATOR {
|
|
lat = lat - _LOC_EQUATOR
|
|
} else {
|
|
north = "S"
|
|
lat = _LOC_EQUATOR - lat
|
|
}
|
|
h := lat / (1000 * 60 * 60)
|
|
lat = lat % (1000 * 60 * 60)
|
|
m := lat / (1000 * 60)
|
|
lat = lat % (1000 * 60)
|
|
s += fmt.Sprintf("%02d %02d %0.3f %s ", h, m, (float32(lat) / 1000), north)
|
|
// Longitude
|
|
lon := rr.Longitude
|
|
east := "E"
|
|
if lon > _LOC_EQUATOR {
|
|
lon = lon - _LOC_EQUATOR
|
|
} else {
|
|
east = "W"
|
|
lon = _LOC_EQUATOR - lon
|
|
}
|
|
h = lon / (1000 * 60 * 60)
|
|
lon = lon % (1000 * 60 * 60)
|
|
m = lon / (1000 * 60)
|
|
lon = lon % (1000 * 60)
|
|
s += fmt.Sprintf("%02d %02d %0.3f %s ", h, m, (float32(lon) / 1000), east)
|
|
|
|
s1 := rr.Altitude / 100.00
|
|
s1 -= 100000
|
|
if rr.Altitude%100 == 0 {
|
|
s += fmt.Sprintf("%.2fm ", float32(s1))
|
|
} else {
|
|
s += fmt.Sprintf("%.0fm ", float32(s1))
|
|
}
|
|
s += cmToString((rr.Size&0xf0)>>4, rr.Size&0x0f) + "m "
|
|
s += cmToString((rr.HorizPre&0xf0)>>4, rr.HorizPre&0x0f) + "m "
|
|
s += cmToString((rr.VertPre&0xf0)>>4, rr.VertPre&0x0f) + "m"
|
|
return s
|
|
}
|
|
|
|
type RRSIG struct {
|
|
Hdr RR_Header
|
|
TypeCovered uint16
|
|
Algorithm uint8
|
|
Labels uint8
|
|
OrigTtl uint32
|
|
Expiration uint32
|
|
Inception uint32
|
|
KeyTag uint16
|
|
SignerName string `dns:"domain-name"`
|
|
Signature string `dns:"base64"`
|
|
}
|
|
|
|
func (rr *RRSIG) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *RRSIG) copy() RR {
|
|
return &RRSIG{*rr.Hdr.copyHeader(), rr.TypeCovered, rr.Algorithm, rr.Labels, rr.OrigTtl, rr.Expiration, rr.Inception, rr.KeyTag, rr.SignerName, rr.Signature}
|
|
}
|
|
|
|
func (rr *RRSIG) String() string {
|
|
s := rr.Hdr.String()
|
|
s += Type(rr.TypeCovered).String()
|
|
s += " " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + strconv.Itoa(int(rr.Labels)) +
|
|
" " + strconv.FormatInt(int64(rr.OrigTtl), 10) +
|
|
" " + TimeToString(rr.Expiration) +
|
|
" " + TimeToString(rr.Inception) +
|
|
" " + strconv.Itoa(int(rr.KeyTag)) +
|
|
" " + sprintName(rr.SignerName) +
|
|
" " + rr.Signature
|
|
return s
|
|
}
|
|
|
|
func (rr *RRSIG) len() int {
|
|
return rr.Hdr.len() + len(rr.SignerName) + 1 +
|
|
base64.StdEncoding.DecodedLen(len(rr.Signature)) + 18
|
|
}
|
|
|
|
type NSEC struct {
|
|
Hdr RR_Header
|
|
NextDomain string `dns:"domain-name"`
|
|
TypeBitMap []uint16 `dns:"nsec"`
|
|
}
|
|
|
|
func (rr *NSEC) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NSEC) copy() RR {
|
|
cp := make([]uint16, len(rr.TypeBitMap), cap(rr.TypeBitMap))
|
|
copy(cp, rr.TypeBitMap)
|
|
return &NSEC{*rr.Hdr.copyHeader(), rr.NextDomain, cp}
|
|
}
|
|
|
|
func (rr *NSEC) String() string {
|
|
s := rr.Hdr.String() + sprintName(rr.NextDomain)
|
|
for i := 0; i < len(rr.TypeBitMap); i++ {
|
|
s += " " + Type(rr.TypeBitMap[i]).String()
|
|
}
|
|
return s
|
|
}
|
|
|
|
func (rr *NSEC) len() int {
|
|
l := rr.Hdr.len() + len(rr.NextDomain) + 1
|
|
lastwindow := uint32(2 ^ 32 + 1)
|
|
for _, t := range rr.TypeBitMap {
|
|
window := t / 256
|
|
if uint32(window) != lastwindow {
|
|
l += 1 + 32
|
|
}
|
|
lastwindow = uint32(window)
|
|
}
|
|
return l
|
|
}
|
|
|
|
type DS struct {
|
|
Hdr RR_Header
|
|
KeyTag uint16
|
|
Algorithm uint8
|
|
DigestType uint8
|
|
Digest string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *DS) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *DS) len() int { return rr.Hdr.len() + 4 + len(rr.Digest)/2 }
|
|
func (rr *DS) copy() RR {
|
|
return &DS{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
|
|
}
|
|
|
|
func (rr *DS) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + strconv.Itoa(int(rr.DigestType)) +
|
|
" " + strings.ToUpper(rr.Digest)
|
|
}
|
|
|
|
type CDS struct {
|
|
Hdr RR_Header
|
|
KeyTag uint16
|
|
Algorithm uint8
|
|
DigestType uint8
|
|
Digest string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *CDS) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *CDS) len() int { return rr.Hdr.len() + 4 + len(rr.Digest)/2 }
|
|
func (rr *CDS) copy() RR {
|
|
return &CDS{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
|
|
}
|
|
|
|
func (rr *CDS) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + strconv.Itoa(int(rr.DigestType)) +
|
|
" " + strings.ToUpper(rr.Digest)
|
|
}
|
|
|
|
type DLV struct {
|
|
Hdr RR_Header
|
|
KeyTag uint16
|
|
Algorithm uint8
|
|
DigestType uint8
|
|
Digest string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *DLV) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *DLV) len() int { return rr.Hdr.len() + 4 + len(rr.Digest)/2 }
|
|
func (rr *DLV) copy() RR {
|
|
return &DLV{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
|
|
}
|
|
|
|
func (rr *DLV) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + strconv.Itoa(int(rr.DigestType)) +
|
|
" " + strings.ToUpper(rr.Digest)
|
|
}
|
|
|
|
type KX struct {
|
|
Hdr RR_Header
|
|
Preference uint16
|
|
Exchanger string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *KX) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *KX) len() int { return rr.Hdr.len() + 2 + len(rr.Exchanger) + 1 }
|
|
func (rr *KX) copy() RR { return &KX{*rr.Hdr.copyHeader(), rr.Preference, rr.Exchanger} }
|
|
|
|
func (rr *KX) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) +
|
|
" " + sprintName(rr.Exchanger)
|
|
}
|
|
|
|
type TA struct {
|
|
Hdr RR_Header
|
|
KeyTag uint16
|
|
Algorithm uint8
|
|
DigestType uint8
|
|
Digest string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *TA) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *TA) len() int { return rr.Hdr.len() + 4 + len(rr.Digest)/2 }
|
|
func (rr *TA) copy() RR {
|
|
return &TA{*rr.Hdr.copyHeader(), rr.KeyTag, rr.Algorithm, rr.DigestType, rr.Digest}
|
|
}
|
|
|
|
func (rr *TA) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + strconv.Itoa(int(rr.DigestType)) +
|
|
" " + strings.ToUpper(rr.Digest)
|
|
}
|
|
|
|
type TALINK struct {
|
|
Hdr RR_Header
|
|
PreviousName string `dns:"domain-name"`
|
|
NextName string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *TALINK) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *TALINK) copy() RR { return &TALINK{*rr.Hdr.copyHeader(), rr.PreviousName, rr.NextName} }
|
|
func (rr *TALINK) len() int { return rr.Hdr.len() + len(rr.PreviousName) + len(rr.NextName) + 2 }
|
|
|
|
func (rr *TALINK) String() string {
|
|
return rr.Hdr.String() +
|
|
" " + sprintName(rr.PreviousName) + " " + sprintName(rr.NextName)
|
|
}
|
|
|
|
type SSHFP struct {
|
|
Hdr RR_Header
|
|
Algorithm uint8
|
|
Type uint8
|
|
FingerPrint string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *SSHFP) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *SSHFP) len() int { return rr.Hdr.len() + 2 + len(rr.FingerPrint)/2 }
|
|
func (rr *SSHFP) copy() RR {
|
|
return &SSHFP{*rr.Hdr.copyHeader(), rr.Algorithm, rr.Type, rr.FingerPrint}
|
|
}
|
|
|
|
func (rr *SSHFP) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + strconv.Itoa(int(rr.Type)) +
|
|
" " + strings.ToUpper(rr.FingerPrint)
|
|
}
|
|
|
|
type IPSECKEY struct {
|
|
Hdr RR_Header
|
|
Precedence uint8
|
|
GatewayType uint8
|
|
Algorithm uint8
|
|
Gateway string `dns:"ipseckey"`
|
|
PublicKey string `dns:"base64"`
|
|
}
|
|
|
|
func (rr *IPSECKEY) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *IPSECKEY) copy() RR {
|
|
return &IPSECKEY{*rr.Hdr.copyHeader(), rr.Precedence, rr.GatewayType, rr.Algorithm, rr.Gateway, rr.PublicKey}
|
|
}
|
|
|
|
func (rr *IPSECKEY) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Precedence)) +
|
|
" " + strconv.Itoa(int(rr.GatewayType)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + rr.Gateway +
|
|
" " + rr.PublicKey
|
|
}
|
|
|
|
func (rr *IPSECKEY) len() int {
|
|
return rr.Hdr.len() + 3 + len(rr.Gateway) + 1 +
|
|
base64.StdEncoding.DecodedLen(len(rr.PublicKey))
|
|
}
|
|
|
|
type DNSKEY struct {
|
|
Hdr RR_Header
|
|
Flags uint16
|
|
Protocol uint8
|
|
Algorithm uint8
|
|
PublicKey string `dns:"base64"`
|
|
}
|
|
|
|
func (rr *DNSKEY) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *DNSKEY) len() int {
|
|
return rr.Hdr.len() + 4 + base64.StdEncoding.DecodedLen(len(rr.PublicKey))
|
|
}
|
|
func (rr *DNSKEY) copy() RR {
|
|
return &DNSKEY{*rr.Hdr.copyHeader(), rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey}
|
|
}
|
|
|
|
func (rr *DNSKEY) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) +
|
|
" " + strconv.Itoa(int(rr.Protocol)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + rr.PublicKey
|
|
}
|
|
|
|
type RKEY struct {
|
|
Hdr RR_Header
|
|
Flags uint16
|
|
Protocol uint8
|
|
Algorithm uint8
|
|
PublicKey string `dns:"base64"`
|
|
}
|
|
|
|
func (rr *RKEY) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *RKEY) len() int { return rr.Hdr.len() + 4 + base64.StdEncoding.DecodedLen(len(rr.PublicKey)) }
|
|
func (rr *RKEY) copy() RR {
|
|
return &RKEY{*rr.Hdr.copyHeader(), rr.Flags, rr.Protocol, rr.Algorithm, rr.PublicKey}
|
|
}
|
|
|
|
func (rr *RKEY) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) +
|
|
" " + strconv.Itoa(int(rr.Protocol)) +
|
|
" " + strconv.Itoa(int(rr.Algorithm)) +
|
|
" " + rr.PublicKey
|
|
}
|
|
|
|
type NSAP struct {
|
|
Hdr RR_Header
|
|
Length uint8
|
|
Nsap string
|
|
}
|
|
|
|
func (rr *NSAP) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NSAP) copy() RR { return &NSAP{*rr.Hdr.copyHeader(), rr.Length, rr.Nsap} }
|
|
func (rr *NSAP) String() string { return rr.Hdr.String() + strconv.Itoa(int(rr.Length)) + " " + rr.Nsap }
|
|
func (rr *NSAP) len() int { return rr.Hdr.len() + 1 + len(rr.Nsap) + 1 }
|
|
|
|
type NSAPPTR struct {
|
|
Hdr RR_Header
|
|
Ptr string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *NSAPPTR) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NSAPPTR) copy() RR { return &NSAPPTR{*rr.Hdr.copyHeader(), rr.Ptr} }
|
|
func (rr *NSAPPTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) }
|
|
func (rr *NSAPPTR) len() int { return rr.Hdr.len() + len(rr.Ptr) }
|
|
|
|
type NSEC3 struct {
|
|
Hdr RR_Header
|
|
Hash uint8
|
|
Flags uint8
|
|
Iterations uint16
|
|
SaltLength uint8
|
|
Salt string `dns:"size-hex"`
|
|
HashLength uint8
|
|
NextDomain string `dns:"size-base32"`
|
|
TypeBitMap []uint16 `dns:"nsec"`
|
|
}
|
|
|
|
func (rr *NSEC3) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NSEC3) copy() RR {
|
|
cp := make([]uint16, len(rr.TypeBitMap), cap(rr.TypeBitMap))
|
|
copy(cp, rr.TypeBitMap)
|
|
return &NSEC3{*rr.Hdr.copyHeader(), rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt, rr.HashLength, rr.NextDomain, cp}
|
|
}
|
|
|
|
func (rr *NSEC3) String() string {
|
|
s := rr.Hdr.String()
|
|
s += strconv.Itoa(int(rr.Hash)) +
|
|
" " + strconv.Itoa(int(rr.Flags)) +
|
|
" " + strconv.Itoa(int(rr.Iterations)) +
|
|
" " + saltToString(rr.Salt) +
|
|
" " + rr.NextDomain
|
|
for i := 0; i < len(rr.TypeBitMap); i++ {
|
|
s += " " + Type(rr.TypeBitMap[i]).String()
|
|
}
|
|
return s
|
|
}
|
|
|
|
func (rr *NSEC3) len() int {
|
|
l := rr.Hdr.len() + 6 + len(rr.Salt)/2 + 1 + len(rr.NextDomain) + 1
|
|
lastwindow := uint32(2 ^ 32 + 1)
|
|
for _, t := range rr.TypeBitMap {
|
|
window := t / 256
|
|
if uint32(window) != lastwindow {
|
|
l += 1 + 32
|
|
}
|
|
lastwindow = uint32(window)
|
|
}
|
|
return l
|
|
}
|
|
|
|
type NSEC3PARAM struct {
|
|
Hdr RR_Header
|
|
Hash uint8
|
|
Flags uint8
|
|
Iterations uint16
|
|
SaltLength uint8
|
|
Salt string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *NSEC3PARAM) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NSEC3PARAM) len() int { return rr.Hdr.len() + 2 + 4 + 1 + len(rr.Salt)/2 }
|
|
func (rr *NSEC3PARAM) copy() RR {
|
|
return &NSEC3PARAM{*rr.Hdr.copyHeader(), rr.Hash, rr.Flags, rr.Iterations, rr.SaltLength, rr.Salt}
|
|
}
|
|
|
|
func (rr *NSEC3PARAM) String() string {
|
|
s := rr.Hdr.String()
|
|
s += strconv.Itoa(int(rr.Hash)) +
|
|
" " + strconv.Itoa(int(rr.Flags)) +
|
|
" " + strconv.Itoa(int(rr.Iterations)) +
|
|
" " + saltToString(rr.Salt)
|
|
return s
|
|
}
|
|
|
|
type TKEY struct {
|
|
Hdr RR_Header
|
|
Algorithm string `dns:"domain-name"`
|
|
Inception uint32
|
|
Expiration uint32
|
|
Mode uint16
|
|
Error uint16
|
|
KeySize uint16
|
|
Key string
|
|
OtherLen uint16
|
|
OtherData string
|
|
}
|
|
|
|
func (rr *TKEY) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *TKEY) copy() RR {
|
|
return &TKEY{*rr.Hdr.copyHeader(), rr.Algorithm, rr.Inception, rr.Expiration, rr.Mode, rr.Error, rr.KeySize, rr.Key, rr.OtherLen, rr.OtherData}
|
|
}
|
|
|
|
func (rr *TKEY) String() string {
|
|
// It has no presentation format
|
|
return ""
|
|
}
|
|
|
|
func (rr *TKEY) len() int {
|
|
return rr.Hdr.len() + len(rr.Algorithm) + 1 + 4 + 4 + 6 +
|
|
len(rr.Key) + 2 + len(rr.OtherData)
|
|
}
|
|
|
|
// RFC3597 represents an unknown/generic RR.
|
|
type RFC3597 struct {
|
|
Hdr RR_Header
|
|
Rdata string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *RFC3597) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *RFC3597) copy() RR { return &RFC3597{*rr.Hdr.copyHeader(), rr.Rdata} }
|
|
func (rr *RFC3597) len() int { return rr.Hdr.len() + len(rr.Rdata)/2 + 2 }
|
|
|
|
func (rr *RFC3597) String() string {
|
|
s := rr.Hdr.String()
|
|
s += "\\# " + strconv.Itoa(len(rr.Rdata)/2) + " " + rr.Rdata
|
|
return s
|
|
}
|
|
|
|
type URI struct {
|
|
Hdr RR_Header
|
|
Priority uint16
|
|
Weight uint16
|
|
Target []string `dns:"txt"`
|
|
}
|
|
|
|
func (rr *URI) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *URI) copy() RR {
|
|
cp := make([]string, len(rr.Target), cap(rr.Target))
|
|
copy(cp, rr.Target)
|
|
return &URI{*rr.Hdr.copyHeader(), rr.Weight, rr.Priority, cp}
|
|
}
|
|
|
|
func (rr *URI) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Priority)) +
|
|
" " + strconv.Itoa(int(rr.Weight)) + sprintTxt(rr.Target)
|
|
}
|
|
|
|
func (rr *URI) len() int {
|
|
l := rr.Hdr.len() + 4
|
|
for _, t := range rr.Target {
|
|
l += len(t) + 1
|
|
}
|
|
return l
|
|
}
|
|
|
|
type DHCID struct {
|
|
Hdr RR_Header
|
|
Digest string `dns:"base64"`
|
|
}
|
|
|
|
func (rr *DHCID) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *DHCID) copy() RR { return &DHCID{*rr.Hdr.copyHeader(), rr.Digest} }
|
|
func (rr *DHCID) String() string { return rr.Hdr.String() + rr.Digest }
|
|
func (rr *DHCID) len() int { return rr.Hdr.len() + base64.StdEncoding.DecodedLen(len(rr.Digest)) }
|
|
|
|
type TLSA struct {
|
|
Hdr RR_Header
|
|
Usage uint8
|
|
Selector uint8
|
|
MatchingType uint8
|
|
Certificate string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *TLSA) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *TLSA) len() int { return rr.Hdr.len() + 3 + len(rr.Certificate)/2 }
|
|
|
|
func (rr *TLSA) copy() RR {
|
|
return &TLSA{*rr.Hdr.copyHeader(), rr.Usage, rr.Selector, rr.MatchingType, rr.Certificate}
|
|
}
|
|
|
|
func (rr *TLSA) String() string {
|
|
return rr.Hdr.String() +
|
|
" " + strconv.Itoa(int(rr.Usage)) +
|
|
" " + strconv.Itoa(int(rr.Selector)) +
|
|
" " + strconv.Itoa(int(rr.MatchingType)) +
|
|
" " + rr.Certificate
|
|
}
|
|
|
|
type HIP struct {
|
|
Hdr RR_Header
|
|
HitLength uint8
|
|
PublicKeyAlgorithm uint8
|
|
PublicKeyLength uint16
|
|
Hit string `dns:"hex"`
|
|
PublicKey string `dns:"base64"`
|
|
RendezvousServers []string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *HIP) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *HIP) copy() RR {
|
|
cp := make([]string, len(rr.RendezvousServers), cap(rr.RendezvousServers))
|
|
copy(cp, rr.RendezvousServers)
|
|
return &HIP{*rr.Hdr.copyHeader(), rr.HitLength, rr.PublicKeyAlgorithm, rr.PublicKeyLength, rr.Hit, rr.PublicKey, cp}
|
|
}
|
|
|
|
func (rr *HIP) String() string {
|
|
s := rr.Hdr.String() +
|
|
" " + strconv.Itoa(int(rr.PublicKeyAlgorithm)) +
|
|
" " + rr.Hit +
|
|
" " + rr.PublicKey
|
|
for _, d := range rr.RendezvousServers {
|
|
s += " " + sprintName(d)
|
|
}
|
|
return s
|
|
}
|
|
|
|
func (rr *HIP) len() int {
|
|
l := rr.Hdr.len() + 4 +
|
|
len(rr.Hit)/2 +
|
|
base64.StdEncoding.DecodedLen(len(rr.PublicKey))
|
|
for _, d := range rr.RendezvousServers {
|
|
l += len(d) + 1
|
|
}
|
|
return l
|
|
}
|
|
|
|
type NINFO struct {
|
|
Hdr RR_Header
|
|
ZSData []string `dns:"txt"`
|
|
}
|
|
|
|
func (rr *NINFO) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NINFO) copy() RR {
|
|
cp := make([]string, len(rr.ZSData), cap(rr.ZSData))
|
|
copy(cp, rr.ZSData)
|
|
return &NINFO{*rr.Hdr.copyHeader(), cp}
|
|
}
|
|
|
|
func (rr *NINFO) String() string { return rr.Hdr.String() + sprintTxt(rr.ZSData) }
|
|
|
|
func (rr *NINFO) len() int {
|
|
l := rr.Hdr.len()
|
|
for _, t := range rr.ZSData {
|
|
l += len(t) + 1
|
|
}
|
|
return l
|
|
}
|
|
|
|
type WKS struct {
|
|
Hdr RR_Header
|
|
Address net.IP `dns:"a"`
|
|
Protocol uint8
|
|
BitMap []uint16 `dns:"wks"`
|
|
}
|
|
|
|
func (rr *WKS) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *WKS) len() int { return rr.Hdr.len() + net.IPv4len + 1 }
|
|
|
|
func (rr *WKS) copy() RR {
|
|
cp := make([]uint16, len(rr.BitMap), cap(rr.BitMap))
|
|
copy(cp, rr.BitMap)
|
|
return &WKS{*rr.Hdr.copyHeader(), copyIP(rr.Address), rr.Protocol, cp}
|
|
}
|
|
|
|
func (rr *WKS) String() (s string) {
|
|
s = rr.Hdr.String()
|
|
if rr.Address != nil {
|
|
s += rr.Address.String()
|
|
}
|
|
for i := 0; i < len(rr.BitMap); i++ {
|
|
// should lookup the port
|
|
s += " " + strconv.Itoa(int(rr.BitMap[i]))
|
|
}
|
|
return s
|
|
}
|
|
|
|
type NID struct {
|
|
Hdr RR_Header
|
|
Preference uint16
|
|
NodeID uint64
|
|
}
|
|
|
|
func (rr *NID) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NID) copy() RR { return &NID{*rr.Hdr.copyHeader(), rr.Preference, rr.NodeID} }
|
|
func (rr *NID) len() int { return rr.Hdr.len() + 2 + 8 }
|
|
|
|
func (rr *NID) String() string {
|
|
s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
|
|
node := fmt.Sprintf("%0.16x", rr.NodeID)
|
|
s += " " + node[0:4] + ":" + node[4:8] + ":" + node[8:12] + ":" + node[12:16]
|
|
return s
|
|
}
|
|
|
|
type L32 struct {
|
|
Hdr RR_Header
|
|
Preference uint16
|
|
Locator32 net.IP `dns:"a"`
|
|
}
|
|
|
|
func (rr *L32) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *L32) copy() RR { return &L32{*rr.Hdr.copyHeader(), rr.Preference, copyIP(rr.Locator32)} }
|
|
func (rr *L32) len() int { return rr.Hdr.len() + net.IPv4len }
|
|
|
|
func (rr *L32) String() string {
|
|
if rr.Locator32 == nil {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
|
|
}
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) +
|
|
" " + rr.Locator32.String()
|
|
}
|
|
|
|
type L64 struct {
|
|
Hdr RR_Header
|
|
Preference uint16
|
|
Locator64 uint64
|
|
}
|
|
|
|
func (rr *L64) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *L64) copy() RR { return &L64{*rr.Hdr.copyHeader(), rr.Preference, rr.Locator64} }
|
|
func (rr *L64) len() int { return rr.Hdr.len() + 2 + 8 }
|
|
|
|
func (rr *L64) String() string {
|
|
s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference))
|
|
node := fmt.Sprintf("%0.16X", rr.Locator64)
|
|
s += " " + node[0:4] + ":" + node[4:8] + ":" + node[8:12] + ":" + node[12:16]
|
|
return s
|
|
}
|
|
|
|
type LP struct {
|
|
Hdr RR_Header
|
|
Preference uint16
|
|
Fqdn string `dns:"domain-name"`
|
|
}
|
|
|
|
func (rr *LP) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *LP) copy() RR { return &LP{*rr.Hdr.copyHeader(), rr.Preference, rr.Fqdn} }
|
|
func (rr *LP) len() int { return rr.Hdr.len() + 2 + len(rr.Fqdn) + 1 }
|
|
|
|
func (rr *LP) String() string {
|
|
return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Fqdn)
|
|
}
|
|
|
|
type EUI48 struct {
|
|
Hdr RR_Header
|
|
Address uint64 `dns:"uint48"`
|
|
}
|
|
|
|
func (rr *EUI48) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *EUI48) copy() RR { return &EUI48{*rr.Hdr.copyHeader(), rr.Address} }
|
|
func (rr *EUI48) String() string { return rr.Hdr.String() + euiToString(rr.Address, 48) }
|
|
func (rr *EUI48) len() int { return rr.Hdr.len() + 6 }
|
|
|
|
type EUI64 struct {
|
|
Hdr RR_Header
|
|
Address uint64
|
|
}
|
|
|
|
func (rr *EUI64) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *EUI64) copy() RR { return &EUI64{*rr.Hdr.copyHeader(), rr.Address} }
|
|
func (rr *EUI64) String() string { return rr.Hdr.String() + euiToString(rr.Address, 64) }
|
|
func (rr *EUI64) len() int { return rr.Hdr.len() + 8 }
|
|
|
|
// Support in incomplete - just handle it as unknown record
|
|
/*
|
|
type CAA struct {
|
|
Hdr RR_Header
|
|
Flag uint8
|
|
Tag string
|
|
Value string `dns:"octet"`
|
|
}
|
|
|
|
func (rr *CAA) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *CAA) copy() RR { return &CAA{*rr.Hdr.copyHeader(), rr.Flag, rr.Tag, rr.Value} }
|
|
func (rr *CAA) len() int { return rr.Hdr.len() + 1 + len(rr.Tag) + 1 + len(rr.Value) }
|
|
|
|
func (rr *CAA) String() string {
|
|
s := rr.Hdr.String() + strconv.FormatInt(int64(rr.Flag), 10) + " " + rr.Tag
|
|
s += strconv.QuoteToASCII(rr.Value)
|
|
return s
|
|
}
|
|
*/
|
|
|
|
type UID struct {
|
|
Hdr RR_Header
|
|
Uid uint32
|
|
}
|
|
|
|
func (rr *UID) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *UID) copy() RR { return &UID{*rr.Hdr.copyHeader(), rr.Uid} }
|
|
func (rr *UID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Uid), 10) }
|
|
func (rr *UID) len() int { return rr.Hdr.len() + 4 }
|
|
|
|
type GID struct {
|
|
Hdr RR_Header
|
|
Gid uint32
|
|
}
|
|
|
|
func (rr *GID) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *GID) copy() RR { return &GID{*rr.Hdr.copyHeader(), rr.Gid} }
|
|
func (rr *GID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Gid), 10) }
|
|
func (rr *GID) len() int { return rr.Hdr.len() + 4 }
|
|
|
|
type UINFO struct {
|
|
Hdr RR_Header
|
|
Uinfo string
|
|
}
|
|
|
|
func (rr *UINFO) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *UINFO) copy() RR { return &UINFO{*rr.Hdr.copyHeader(), rr.Uinfo} }
|
|
func (rr *UINFO) String() string { return rr.Hdr.String() + sprintTxt([]string{rr.Uinfo}) }
|
|
func (rr *UINFO) len() int { return rr.Hdr.len() + len(rr.Uinfo) + 1 }
|
|
|
|
type EID struct {
|
|
Hdr RR_Header
|
|
Endpoint string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *EID) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *EID) copy() RR { return &EID{*rr.Hdr.copyHeader(), rr.Endpoint} }
|
|
func (rr *EID) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Endpoint) }
|
|
func (rr *EID) len() int { return rr.Hdr.len() + len(rr.Endpoint)/2 }
|
|
|
|
type NIMLOC struct {
|
|
Hdr RR_Header
|
|
Locator string `dns:"hex"`
|
|
}
|
|
|
|
func (rr *NIMLOC) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *NIMLOC) copy() RR { return &NIMLOC{*rr.Hdr.copyHeader(), rr.Locator} }
|
|
func (rr *NIMLOC) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Locator) }
|
|
func (rr *NIMLOC) len() int { return rr.Hdr.len() + len(rr.Locator)/2 }
|
|
|
|
type OPENPGPKEY struct {
|
|
Hdr RR_Header
|
|
PublicKey string `dns:"base64"`
|
|
}
|
|
|
|
func (rr *OPENPGPKEY) Header() *RR_Header { return &rr.Hdr }
|
|
func (rr *OPENPGPKEY) copy() RR { return &OPENPGPKEY{*rr.Hdr.copyHeader(), rr.PublicKey} }
|
|
func (rr *OPENPGPKEY) String() string { return rr.Hdr.String() + rr.PublicKey }
|
|
func (rr *OPENPGPKEY) len() int {
|
|
return rr.Hdr.len() + base64.StdEncoding.DecodedLen(len(rr.PublicKey))
|
|
}
|
|
|
|
// TimeToString translates the RRSIG's incep. and expir. times to the
|
|
// string representation used when printing the record.
|
|
// It takes serial arithmetic (RFC 1982) into account.
|
|
func TimeToString(t uint32) string {
|
|
mod := ((int64(t) - time.Now().Unix()) / year68) - 1
|
|
if mod < 0 {
|
|
mod = 0
|
|
}
|
|
ti := time.Unix(int64(t)-(mod*year68), 0).UTC()
|
|
return ti.Format("20060102150405")
|
|
}
|
|
|
|
// StringToTime translates the RRSIG's incep. and expir. times from
|
|
// string values like "20110403154150" to an 32 bit integer.
|
|
// It takes serial arithmetic (RFC 1982) into account.
|
|
func StringToTime(s string) (uint32, error) {
|
|
t, e := time.Parse("20060102150405", s)
|
|
if e != nil {
|
|
return 0, e
|
|
}
|
|
mod := (t.Unix() / year68) - 1
|
|
if mod < 0 {
|
|
mod = 0
|
|
}
|
|
return uint32(t.Unix() - (mod * year68)), nil
|
|
}
|
|
|
|
// saltToString converts a NSECX salt to uppercase and
|
|
// returns "-" when it is empty
|
|
func saltToString(s string) string {
|
|
if len(s) == 0 {
|
|
return "-"
|
|
}
|
|
return strings.ToUpper(s)
|
|
}
|
|
|
|
func cmToString(mantissa, exponent uint8) string {
|
|
switch exponent {
|
|
case 0, 1:
|
|
if exponent == 1 {
|
|
mantissa *= 10
|
|
}
|
|
return fmt.Sprintf("%.02f", float32(mantissa))
|
|
default:
|
|
s := fmt.Sprintf("%d", mantissa)
|
|
for i := uint8(0); i < exponent-2; i++ {
|
|
s += "0"
|
|
}
|
|
return s
|
|
}
|
|
panic("dns: not reached")
|
|
}
|
|
|
|
func euiToString(eui uint64, bits int) (hex string) {
|
|
switch bits {
|
|
case 64:
|
|
hex = fmt.Sprintf("%16.16x", eui)
|
|
hex = hex[0:2] + "-" + hex[2:4] + "-" + hex[4:6] + "-" + hex[6:8] +
|
|
"-" + hex[8:10] + "-" + hex[10:12] + "-" + hex[12:14] + "-" + hex[14:16]
|
|
case 48:
|
|
hex = fmt.Sprintf("%12.12x", eui)
|
|
hex = hex[0:2] + "-" + hex[2:4] + "-" + hex[4:6] + "-" + hex[6:8] +
|
|
"-" + hex[8:10] + "-" + hex[10:12]
|
|
}
|
|
return
|
|
}
|
|
|
|
// copyIP returns a copy of ip.
|
|
func copyIP(ip net.IP) net.IP {
|
|
p := make(net.IP, len(ip))
|
|
copy(p, ip)
|
|
return p
|
|
}
|
|
|
|
// Map of constructors for each RR wire type.
|
|
var rr_mk = map[uint16]func() RR{
|
|
TypeA: func() RR { return new(A) },
|
|
TypeAAAA: func() RR { return new(AAAA) },
|
|
TypeAFSDB: func() RR { return new(AFSDB) },
|
|
// TypeCAA: func() RR { return new(CAA) },
|
|
TypeCDS: func() RR { return new(CDS) },
|
|
TypeCERT: func() RR { return new(CERT) },
|
|
TypeCNAME: func() RR { return new(CNAME) },
|
|
TypeDHCID: func() RR { return new(DHCID) },
|
|
TypeDLV: func() RR { return new(DLV) },
|
|
TypeDNAME: func() RR { return new(DNAME) },
|
|
TypeDNSKEY: func() RR { return new(DNSKEY) },
|
|
TypeDS: func() RR { return new(DS) },
|
|
TypeEUI48: func() RR { return new(EUI48) },
|
|
TypeEUI64: func() RR { return new(EUI64) },
|
|
TypeGID: func() RR { return new(GID) },
|
|
TypeGPOS: func() RR { return new(GPOS) },
|
|
TypeEID: func() RR { return new(EID) },
|
|
TypeHINFO: func() RR { return new(HINFO) },
|
|
TypeHIP: func() RR { return new(HIP) },
|
|
TypeKX: func() RR { return new(KX) },
|
|
TypeL32: func() RR { return new(L32) },
|
|
TypeL64: func() RR { return new(L64) },
|
|
TypeLOC: func() RR { return new(LOC) },
|
|
TypeLP: func() RR { return new(LP) },
|
|
TypeMB: func() RR { return new(MB) },
|
|
TypeMD: func() RR { return new(MD) },
|
|
TypeMF: func() RR { return new(MF) },
|
|
TypeMG: func() RR { return new(MG) },
|
|
TypeMINFO: func() RR { return new(MINFO) },
|
|
TypeMR: func() RR { return new(MR) },
|
|
TypeMX: func() RR { return new(MX) },
|
|
TypeNAPTR: func() RR { return new(NAPTR) },
|
|
TypeNID: func() RR { return new(NID) },
|
|
TypeNINFO: func() RR { return new(NINFO) },
|
|
TypeNIMLOC: func() RR { return new(NIMLOC) },
|
|
TypeNS: func() RR { return new(NS) },
|
|
TypeNSAP: func() RR { return new(NSAP) },
|
|
TypeNSAPPTR: func() RR { return new(NSAPPTR) },
|
|
TypeNSEC3: func() RR { return new(NSEC3) },
|
|
TypeNSEC3PARAM: func() RR { return new(NSEC3PARAM) },
|
|
TypeNSEC: func() RR { return new(NSEC) },
|
|
TypeOPENPGPKEY: func() RR { return new(OPENPGPKEY) },
|
|
TypeOPT: func() RR { return new(OPT) },
|
|
TypePTR: func() RR { return new(PTR) },
|
|
TypeRKEY: func() RR { return new(RKEY) },
|
|
TypeRP: func() RR { return new(RP) },
|
|
TypePX: func() RR { return new(PX) },
|
|
TypeRRSIG: func() RR { return new(RRSIG) },
|
|
TypeRT: func() RR { return new(RT) },
|
|
TypeSOA: func() RR { return new(SOA) },
|
|
TypeSPF: func() RR { return new(SPF) },
|
|
TypeSRV: func() RR { return new(SRV) },
|
|
TypeSSHFP: func() RR { return new(SSHFP) },
|
|
TypeTA: func() RR { return new(TA) },
|
|
TypeTALINK: func() RR { return new(TALINK) },
|
|
TypeTKEY: func() RR { return new(TKEY) },
|
|
TypeTLSA: func() RR { return new(TLSA) },
|
|
TypeTSIG: func() RR { return new(TSIG) },
|
|
TypeTXT: func() RR { return new(TXT) },
|
|
TypeUID: func() RR { return new(UID) },
|
|
TypeUINFO: func() RR { return new(UINFO) },
|
|
TypeURI: func() RR { return new(URI) },
|
|
TypeWKS: func() RR { return new(WKS) },
|
|
TypeX25: func() RR { return new(X25) },
|
|
}
|