Update dependencies
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TwinProduction
156
vendor/github.com/miekg/dns/edns.go
generated
vendored
156
vendor/github.com/miekg/dns/edns.go
generated
vendored
@ -22,11 +22,47 @@ const (
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EDNS0COOKIE = 0xa // EDNS0 Cookie
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EDNS0TCPKEEPALIVE = 0xb // EDNS0 tcp keep alive (See RFC 7828)
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EDNS0PADDING = 0xc // EDNS0 padding (See RFC 7830)
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EDNS0EDE = 0xf // EDNS0 extended DNS errors (See RFC 8914)
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EDNS0LOCALSTART = 0xFDE9 // Beginning of range reserved for local/experimental use (See RFC 6891)
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EDNS0LOCALEND = 0xFFFE // End of range reserved for local/experimental use (See RFC 6891)
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_DO = 1 << 15 // DNSSEC OK
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)
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// makeDataOpt is used to unpack the EDNS0 option(s) from a message.
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func makeDataOpt(code uint16) EDNS0 {
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// All the EDNS0.* constants above need to be in this switch.
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switch code {
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case EDNS0LLQ:
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return new(EDNS0_LLQ)
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case EDNS0UL:
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return new(EDNS0_UL)
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case EDNS0NSID:
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return new(EDNS0_NSID)
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case EDNS0DAU:
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return new(EDNS0_DAU)
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case EDNS0DHU:
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return new(EDNS0_DHU)
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case EDNS0N3U:
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return new(EDNS0_N3U)
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case EDNS0SUBNET:
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return new(EDNS0_SUBNET)
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case EDNS0EXPIRE:
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return new(EDNS0_EXPIRE)
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case EDNS0COOKIE:
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return new(EDNS0_COOKIE)
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case EDNS0TCPKEEPALIVE:
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return new(EDNS0_TCP_KEEPALIVE)
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case EDNS0PADDING:
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return new(EDNS0_PADDING)
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case EDNS0EDE:
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return new(EDNS0_EDE)
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default:
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e := new(EDNS0_LOCAL)
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e.Code = code
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return e
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}
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}
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// OPT is the EDNS0 RR appended to messages to convey extra (meta) information.
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// See RFC 6891.
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type OPT struct {
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@ -73,6 +109,8 @@ func (rr *OPT) String() string {
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s += "\n; LOCAL OPT: " + o.String()
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case *EDNS0_PADDING:
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s += "\n; PADDING: " + o.String()
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case *EDNS0_EDE:
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s += "\n; EDE: " + o.String()
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}
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}
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return s
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@ -88,11 +126,11 @@ func (rr *OPT) len(off int, compression map[string]struct{}) int {
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return l
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}
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func (rr *OPT) parse(c *zlexer, origin string) *ParseError {
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panic("dns: internal error: parse should never be called on OPT")
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func (*OPT) parse(c *zlexer, origin string) *ParseError {
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return &ParseError{err: "OPT records do not have a presentation format"}
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}
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func (r1 *OPT) isDuplicate(r2 RR) bool { return false }
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func (rr *OPT) isDuplicate(r2 RR) bool { return false }
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// return the old value -> delete SetVersion?
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@ -148,6 +186,16 @@ func (rr *OPT) SetDo(do ...bool) {
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}
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}
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// Z returns the Z part of the OPT RR as a uint16 with only the 15 least significant bits used.
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func (rr *OPT) Z() uint16 {
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return uint16(rr.Hdr.Ttl & 0x7FFF)
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}
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// SetZ sets the Z part of the OPT RR, note only the 15 least significant bits of z are used.
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func (rr *OPT) SetZ(z uint16) {
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rr.Hdr.Ttl = rr.Hdr.Ttl&^0x7FFF | uint32(z&0x7FFF)
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}
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// EDNS0 defines an EDNS0 Option. An OPT RR can have multiple options appended to it.
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type EDNS0 interface {
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// Option returns the option code for the option.
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@ -452,7 +500,7 @@ func (e *EDNS0_LLQ) copy() EDNS0 {
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return &EDNS0_LLQ{e.Code, e.Version, e.Opcode, e.Error, e.Id, e.LeaseLife}
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}
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// EDNS0_DUA implements the EDNS0 "DNSSEC Algorithm Understood" option. See RFC 6975.
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// EDNS0_DAU implements the EDNS0 "DNSSEC Algorithm Understood" option. See RFC 6975.
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type EDNS0_DAU struct {
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Code uint16 // Always EDNS0DAU
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AlgCode []uint8
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@ -525,7 +573,7 @@ func (e *EDNS0_N3U) String() string {
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}
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func (e *EDNS0_N3U) copy() EDNS0 { return &EDNS0_N3U{e.Code, e.AlgCode} }
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// EDNS0_EXPIRE implementes the EDNS0 option as described in RFC 7314.
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// EDNS0_EXPIRE implements the EDNS0 option as described in RFC 7314.
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type EDNS0_EXPIRE struct {
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Code uint16 // Always EDNS0EXPIRE
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Expire uint32
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@ -673,3 +721,101 @@ func (e *EDNS0_PADDING) copy() EDNS0 {
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copy(b, e.Padding)
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return &EDNS0_PADDING{b}
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}
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// Extended DNS Error Codes (RFC 8914).
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const (
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ExtendedErrorCodeOther uint16 = iota
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ExtendedErrorCodeUnsupportedDNSKEYAlgorithm
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ExtendedErrorCodeUnsupportedDSDigestType
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ExtendedErrorCodeStaleAnswer
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ExtendedErrorCodeForgedAnswer
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ExtendedErrorCodeDNSSECIndeterminate
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ExtendedErrorCodeDNSBogus
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ExtendedErrorCodeSignatureExpired
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ExtendedErrorCodeSignatureNotYetValid
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ExtendedErrorCodeDNSKEYMissing
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ExtendedErrorCodeRRSIGsMissing
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ExtendedErrorCodeNoZoneKeyBitSet
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ExtendedErrorCodeNSECMissing
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ExtendedErrorCodeCachedError
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ExtendedErrorCodeNotReady
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ExtendedErrorCodeBlocked
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ExtendedErrorCodeCensored
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ExtendedErrorCodeFiltered
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ExtendedErrorCodeProhibited
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ExtendedErrorCodeStaleNXDOMAINAnswer
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ExtendedErrorCodeNotAuthoritative
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ExtendedErrorCodeNotSupported
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ExtendedErrorCodeNoReachableAuthority
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ExtendedErrorCodeNetworkError
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ExtendedErrorCodeInvalidData
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)
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// ExtendedErrorCodeToString maps extended error info codes to a human readable
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// description.
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var ExtendedErrorCodeToString = map[uint16]string{
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ExtendedErrorCodeOther: "Other",
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ExtendedErrorCodeUnsupportedDNSKEYAlgorithm: "Unsupported DNSKEY Algorithm",
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ExtendedErrorCodeUnsupportedDSDigestType: "Unsupported DS Digest Type",
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ExtendedErrorCodeStaleAnswer: "Stale Answer",
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ExtendedErrorCodeForgedAnswer: "Forged Answer",
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ExtendedErrorCodeDNSSECIndeterminate: "DNSSEC Indeterminate",
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ExtendedErrorCodeDNSBogus: "DNSSEC Bogus",
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ExtendedErrorCodeSignatureExpired: "Signature Expired",
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ExtendedErrorCodeSignatureNotYetValid: "Signature Not Yet Valid",
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ExtendedErrorCodeDNSKEYMissing: "DNSKEY Missing",
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ExtendedErrorCodeRRSIGsMissing: "RRSIGs Missing",
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ExtendedErrorCodeNoZoneKeyBitSet: "No Zone Key Bit Set",
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ExtendedErrorCodeNSECMissing: "NSEC Missing",
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ExtendedErrorCodeCachedError: "Cached Error",
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ExtendedErrorCodeNotReady: "Not Ready",
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ExtendedErrorCodeBlocked: "Blocked",
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ExtendedErrorCodeCensored: "Censored",
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ExtendedErrorCodeFiltered: "Filtered",
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ExtendedErrorCodeProhibited: "Prohibited",
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ExtendedErrorCodeStaleNXDOMAINAnswer: "Stale NXDOMAIN Answer",
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ExtendedErrorCodeNotAuthoritative: "Not Authoritative",
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ExtendedErrorCodeNotSupported: "Not Supported",
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ExtendedErrorCodeNoReachableAuthority: "No Reachable Authority",
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ExtendedErrorCodeNetworkError: "Network Error",
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ExtendedErrorCodeInvalidData: "Invalid Data",
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}
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// StringToExtendedErrorCode is a map from human readable descriptions to
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// extended error info codes.
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var StringToExtendedErrorCode = reverseInt16(ExtendedErrorCodeToString)
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// EDNS0_EDE option is used to return additional information about the cause of
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// DNS errors.
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type EDNS0_EDE struct {
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InfoCode uint16
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ExtraText string
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}
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// Option implements the EDNS0 interface.
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func (e *EDNS0_EDE) Option() uint16 { return EDNS0EDE }
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func (e *EDNS0_EDE) copy() EDNS0 { return &EDNS0_EDE{e.InfoCode, e.ExtraText} }
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func (e *EDNS0_EDE) String() string {
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info := strconv.FormatUint(uint64(e.InfoCode), 10)
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if s, ok := ExtendedErrorCodeToString[e.InfoCode]; ok {
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info += fmt.Sprintf(" (%s)", s)
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}
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return fmt.Sprintf("%s: (%s)", info, e.ExtraText)
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}
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func (e *EDNS0_EDE) pack() ([]byte, error) {
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b := make([]byte, 2+len(e.ExtraText))
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binary.BigEndian.PutUint16(b[0:], e.InfoCode)
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copy(b[2:], []byte(e.ExtraText))
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return b, nil
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}
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func (e *EDNS0_EDE) unpack(b []byte) error {
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if len(b) < 2 {
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return ErrBuf
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}
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e.InfoCode = binary.BigEndian.Uint16(b[0:])
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e.ExtraText = string(b[2:])
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return nil
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}
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