| package dns |
| |
| import ( |
| "encoding/base64" |
| "net" |
| "strconv" |
| "strings" |
| ) |
| |
| type parserFunc struct { |
| // Func defines the function that parses the tokens and returns the RR |
| // or an error. The last string contains any comments in the line as |
| // they returned by the lexer as well. |
| Func func(h RR_Header, c chan lex, origin string, file string) (RR, *ParseError, string) |
| // Signals if the RR ending is of variable length, like TXT or records |
| // that have Hexadecimal or Base64 as their last element in the Rdata. Records |
| // that have a fixed ending or for instance A, AAAA, SOA and etc. |
| Variable bool |
| } |
| |
| // Parse the rdata of each rrtype. |
| // All data from the channel c is either zString or zBlank. |
| // After the rdata there may come a zBlank and then a zNewline |
| // or immediately a zNewline. If this is not the case we flag |
| // an *ParseError: garbage after rdata. |
| func setRR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| parserfunc, ok := typeToparserFunc[h.Rrtype] |
| if ok { |
| r, e, cm := parserfunc.Func(h, c, o, f) |
| if parserfunc.Variable { |
| return r, e, cm |
| } |
| if e != nil { |
| return nil, e, "" |
| } |
| e, cm = slurpRemainder(c, f) |
| if e != nil { |
| return nil, e, "" |
| } |
| return r, nil, cm |
| } |
| // RFC3957 RR (Unknown RR handling) |
| return setRFC3597(h, c, o, f) |
| } |
| |
| // A remainder of the rdata with embedded spaces, return the parsed string (sans the spaces) |
| // or an error |
| func endingToString(c chan lex, errstr, f string) (string, *ParseError, string) { |
| s := "" |
| l := <-c // zString |
| for l.value != zNewline && l.value != zEOF { |
| if l.err { |
| return s, &ParseError{f, errstr, l}, "" |
| } |
| switch l.value { |
| case zString: |
| s += l.token |
| case zBlank: // Ok |
| default: |
| return "", &ParseError{f, errstr, l}, "" |
| } |
| l = <-c |
| } |
| return s, nil, l.comment |
| } |
| |
| // A remainder of the rdata with embedded spaces, split on unquoted whitespace |
| // and return the parsed string slice or an error |
| func endingToTxtSlice(c chan lex, errstr, f string) ([]string, *ParseError, string) { |
| // Get the remaining data until we see a zNewline |
| l := <-c |
| if l.err { |
| return nil, &ParseError{f, errstr, l}, "" |
| } |
| |
| // Build the slice |
| s := make([]string, 0) |
| quote := false |
| empty := false |
| for l.value != zNewline && l.value != zEOF { |
| if l.err { |
| return nil, &ParseError{f, errstr, l}, "" |
| } |
| switch l.value { |
| case zString: |
| empty = false |
| if len(l.token) > 255 { |
| // split up tokens that are larger than 255 into 255-chunks |
| sx := []string{} |
| p, i := 0, 255 |
| for { |
| if i <= len(l.token) { |
| sx = append(sx, l.token[p:i]) |
| } else { |
| sx = append(sx, l.token[p:]) |
| break |
| |
| } |
| p, i = p+255, i+255 |
| } |
| s = append(s, sx...) |
| break |
| } |
| |
| s = append(s, l.token) |
| case zBlank: |
| if quote { |
| // zBlank can only be seen in between txt parts. |
| return nil, &ParseError{f, errstr, l}, "" |
| } |
| case zQuote: |
| if empty && quote { |
| s = append(s, "") |
| } |
| quote = !quote |
| empty = true |
| default: |
| return nil, &ParseError{f, errstr, l}, "" |
| } |
| l = <-c |
| } |
| if quote { |
| return nil, &ParseError{f, errstr, l}, "" |
| } |
| return s, nil, l.comment |
| } |
| |
| func setA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(A) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| rr.A = net.ParseIP(l.token) |
| if rr.A == nil || l.err { |
| return nil, &ParseError{f, "bad A A", l}, "" |
| } |
| return rr, nil, "" |
| } |
| |
| func setAAAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(AAAA) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| rr.AAAA = net.ParseIP(l.token) |
| if rr.AAAA == nil || l.err { |
| return nil, &ParseError{f, "bad AAAA AAAA", l}, "" |
| } |
| return rr, nil, "" |
| } |
| |
| func setNS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NS) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Ns = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad NS Ns", l}, "" |
| } |
| rr.Ns = name |
| return rr, nil, "" |
| } |
| |
| func setPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(PTR) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Ptr = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad PTR Ptr", l}, "" |
| } |
| rr.Ptr = name |
| return rr, nil, "" |
| } |
| |
| func setNSAPPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NSAPPTR) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Ptr = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad NSAP-PTR Ptr", l}, "" |
| } |
| rr.Ptr = name |
| return rr, nil, "" |
| } |
| |
| func setRP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(RP) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Mbox = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| mbox, mboxOk := toAbsoluteName(l.token, o) |
| if l.err || !mboxOk { |
| return nil, &ParseError{f, "bad RP Mbox", l}, "" |
| } |
| rr.Mbox = mbox |
| |
| <-c // zBlank |
| l = <-c |
| rr.Txt = l.token |
| |
| txt, txtOk := toAbsoluteName(l.token, o) |
| if l.err || !txtOk { |
| return nil, &ParseError{f, "bad RP Txt", l}, "" |
| } |
| rr.Txt = txt |
| |
| return rr, nil, "" |
| } |
| |
| func setMR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(MR) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Mr = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad MR Mr", l}, "" |
| } |
| rr.Mr = name |
| return rr, nil, "" |
| } |
| |
| func setMB(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(MB) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Mb = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad MB Mb", l}, "" |
| } |
| rr.Mb = name |
| return rr, nil, "" |
| } |
| |
| func setMG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(MG) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Mg = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad MG Mg", l}, "" |
| } |
| rr.Mg = name |
| return rr, nil, "" |
| } |
| |
| func setHINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(HINFO) |
| rr.Hdr = h |
| |
| chunks, e, c1 := endingToTxtSlice(c, "bad HINFO Fields", f) |
| if e != nil { |
| return nil, e, c1 |
| } |
| |
| if ln := len(chunks); ln == 0 { |
| return rr, nil, "" |
| } else if ln == 1 { |
| // Can we split it? |
| if out := strings.Fields(chunks[0]); len(out) > 1 { |
| chunks = out |
| } else { |
| chunks = append(chunks, "") |
| } |
| } |
| |
| rr.Cpu = chunks[0] |
| rr.Os = strings.Join(chunks[1:], " ") |
| |
| return rr, nil, "" |
| } |
| |
| func setMINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(MINFO) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Rmail = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| rmail, rmailOk := toAbsoluteName(l.token, o) |
| if l.err || !rmailOk { |
| return nil, &ParseError{f, "bad MINFO Rmail", l}, "" |
| } |
| rr.Rmail = rmail |
| |
| <-c // zBlank |
| l = <-c |
| rr.Email = l.token |
| |
| email, emailOk := toAbsoluteName(l.token, o) |
| if l.err || !emailOk { |
| return nil, &ParseError{f, "bad MINFO Email", l}, "" |
| } |
| rr.Email = email |
| |
| return rr, nil, "" |
| } |
| |
| func setMF(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(MF) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Mf = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad MF Mf", l}, "" |
| } |
| rr.Mf = name |
| return rr, nil, "" |
| } |
| |
| func setMD(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(MD) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Md = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad MD Md", l}, "" |
| } |
| rr.Md = name |
| return rr, nil, "" |
| } |
| |
| func setMX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(MX) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad MX Pref", l}, "" |
| } |
| rr.Preference = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Mx = l.token |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad MX Mx", l}, "" |
| } |
| rr.Mx = name |
| |
| return rr, nil, "" |
| } |
| |
| func setRT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(RT) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil { |
| return nil, &ParseError{f, "bad RT Preference", l}, "" |
| } |
| rr.Preference = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Host = l.token |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad RT Host", l}, "" |
| } |
| rr.Host = name |
| |
| return rr, nil, "" |
| } |
| |
| func setAFSDB(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(AFSDB) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad AFSDB Subtype", l}, "" |
| } |
| rr.Subtype = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Hostname = l.token |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad AFSDB Hostname", l}, "" |
| } |
| rr.Hostname = name |
| return rr, nil, "" |
| } |
| |
| func setX25(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(X25) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| if l.err { |
| return nil, &ParseError{f, "bad X25 PSDNAddress", l}, "" |
| } |
| rr.PSDNAddress = l.token |
| return rr, nil, "" |
| } |
| |
| func setKX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(KX) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad KX Pref", l}, "" |
| } |
| rr.Preference = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Exchanger = l.token |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad KX Exchanger", l}, "" |
| } |
| rr.Exchanger = name |
| return rr, nil, "" |
| } |
| |
| func setCNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(CNAME) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Target = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad CNAME Target", l}, "" |
| } |
| rr.Target = name |
| return rr, nil, "" |
| } |
| |
| func setDNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(DNAME) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Target = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad DNAME Target", l}, "" |
| } |
| rr.Target = name |
| return rr, nil, "" |
| } |
| |
| func setSOA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(SOA) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.Ns = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| ns, nsOk := toAbsoluteName(l.token, o) |
| if l.err || !nsOk { |
| return nil, &ParseError{f, "bad SOA Ns", l}, "" |
| } |
| rr.Ns = ns |
| |
| <-c // zBlank |
| l = <-c |
| rr.Mbox = l.token |
| |
| mbox, mboxOk := toAbsoluteName(l.token, o) |
| if l.err || !mboxOk { |
| return nil, &ParseError{f, "bad SOA Mbox", l}, "" |
| } |
| rr.Mbox = mbox |
| |
| <-c // zBlank |
| |
| var ( |
| v uint32 |
| ok bool |
| ) |
| for i := 0; i < 5; i++ { |
| l = <-c |
| if l.err { |
| return nil, &ParseError{f, "bad SOA zone parameter", l}, "" |
| } |
| if j, e := strconv.ParseUint(l.token, 10, 32); e != nil { |
| if i == 0 { |
| // Serial must be a number |
| return nil, &ParseError{f, "bad SOA zone parameter", l}, "" |
| } |
| // We allow other fields to be unitful duration strings |
| if v, ok = stringToTTL(l.token); !ok { |
| return nil, &ParseError{f, "bad SOA zone parameter", l}, "" |
| |
| } |
| } else { |
| v = uint32(j) |
| } |
| switch i { |
| case 0: |
| rr.Serial = v |
| <-c // zBlank |
| case 1: |
| rr.Refresh = v |
| <-c // zBlank |
| case 2: |
| rr.Retry = v |
| <-c // zBlank |
| case 3: |
| rr.Expire = v |
| <-c // zBlank |
| case 4: |
| rr.Minttl = v |
| } |
| } |
| return rr, nil, "" |
| } |
| |
| func setSRV(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(SRV) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SRV Priority", l}, "" |
| } |
| rr.Priority = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| i, e = strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SRV Weight", l}, "" |
| } |
| rr.Weight = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| i, e = strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SRV Port", l}, "" |
| } |
| rr.Port = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Target = l.token |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad SRV Target", l}, "" |
| } |
| rr.Target = name |
| return rr, nil, "" |
| } |
| |
| func setNAPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NAPTR) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NAPTR Order", l}, "" |
| } |
| rr.Order = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| i, e = strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NAPTR Preference", l}, "" |
| } |
| rr.Preference = uint16(i) |
| |
| // Flags |
| <-c // zBlank |
| l = <-c // _QUOTE |
| if l.value != zQuote { |
| return nil, &ParseError{f, "bad NAPTR Flags", l}, "" |
| } |
| l = <-c // Either String or Quote |
| if l.value == zString { |
| rr.Flags = l.token |
| l = <-c // _QUOTE |
| if l.value != zQuote { |
| return nil, &ParseError{f, "bad NAPTR Flags", l}, "" |
| } |
| } else if l.value == zQuote { |
| rr.Flags = "" |
| } else { |
| return nil, &ParseError{f, "bad NAPTR Flags", l}, "" |
| } |
| |
| // Service |
| <-c // zBlank |
| l = <-c // _QUOTE |
| if l.value != zQuote { |
| return nil, &ParseError{f, "bad NAPTR Service", l}, "" |
| } |
| l = <-c // Either String or Quote |
| if l.value == zString { |
| rr.Service = l.token |
| l = <-c // _QUOTE |
| if l.value != zQuote { |
| return nil, &ParseError{f, "bad NAPTR Service", l}, "" |
| } |
| } else if l.value == zQuote { |
| rr.Service = "" |
| } else { |
| return nil, &ParseError{f, "bad NAPTR Service", l}, "" |
| } |
| |
| // Regexp |
| <-c // zBlank |
| l = <-c // _QUOTE |
| if l.value != zQuote { |
| return nil, &ParseError{f, "bad NAPTR Regexp", l}, "" |
| } |
| l = <-c // Either String or Quote |
| if l.value == zString { |
| rr.Regexp = l.token |
| l = <-c // _QUOTE |
| if l.value != zQuote { |
| return nil, &ParseError{f, "bad NAPTR Regexp", l}, "" |
| } |
| } else if l.value == zQuote { |
| rr.Regexp = "" |
| } else { |
| return nil, &ParseError{f, "bad NAPTR Regexp", l}, "" |
| } |
| |
| // After quote no space?? |
| <-c // zBlank |
| l = <-c // zString |
| rr.Replacement = l.token |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad NAPTR Replacement", l}, "" |
| } |
| rr.Replacement = name |
| return rr, nil, "" |
| } |
| |
| func setTALINK(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(TALINK) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.PreviousName = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| previousName, previousNameOk := toAbsoluteName(l.token, o) |
| if l.err || !previousNameOk { |
| return nil, &ParseError{f, "bad TALINK PreviousName", l}, "" |
| } |
| rr.PreviousName = previousName |
| |
| <-c // zBlank |
| l = <-c |
| rr.NextName = l.token |
| |
| nextName, nextNameOk := toAbsoluteName(l.token, o) |
| if l.err || !nextNameOk { |
| return nil, &ParseError{f, "bad TALINK NextName", l}, "" |
| } |
| rr.NextName = nextName |
| |
| return rr, nil, "" |
| } |
| |
| func setLOC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(LOC) |
| rr.Hdr = h |
| // Non zero defaults for LOC record, see RFC 1876, Section 3. |
| rr.HorizPre = 165 // 10000 |
| rr.VertPre = 162 // 10 |
| rr.Size = 18 // 1 |
| ok := false |
| |
| // North |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| i, e := strconv.ParseUint(l.token, 10, 32) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad LOC Latitude", l}, "" |
| } |
| rr.Latitude = 1000 * 60 * 60 * uint32(i) |
| |
| <-c // zBlank |
| // Either number, 'N' or 'S' |
| l = <-c |
| if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok { |
| goto East |
| } |
| i, e = strconv.ParseUint(l.token, 10, 32) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad LOC Latitude minutes", l}, "" |
| } |
| rr.Latitude += 1000 * 60 * uint32(i) |
| |
| <-c // zBlank |
| l = <-c |
| if i, e := strconv.ParseFloat(l.token, 32); e != nil || l.err { |
| return nil, &ParseError{f, "bad LOC Latitude seconds", l}, "" |
| } else { |
| rr.Latitude += uint32(1000 * i) |
| } |
| <-c // zBlank |
| // Either number, 'N' or 'S' |
| l = <-c |
| if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok { |
| goto East |
| } |
| // If still alive, flag an error |
| return nil, &ParseError{f, "bad LOC Latitude North/South", l}, "" |
| |
| East: |
| // East |
| <-c // zBlank |
| l = <-c |
| if i, e := strconv.ParseUint(l.token, 10, 32); e != nil || l.err { |
| return nil, &ParseError{f, "bad LOC Longitude", l}, "" |
| } else { |
| rr.Longitude = 1000 * 60 * 60 * uint32(i) |
| } |
| <-c // zBlank |
| // Either number, 'E' or 'W' |
| l = <-c |
| if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok { |
| goto Altitude |
| } |
| if i, e := strconv.ParseUint(l.token, 10, 32); e != nil || l.err { |
| return nil, &ParseError{f, "bad LOC Longitude minutes", l}, "" |
| } else { |
| rr.Longitude += 1000 * 60 * uint32(i) |
| } |
| <-c // zBlank |
| l = <-c |
| if i, e := strconv.ParseFloat(l.token, 32); e != nil || l.err { |
| return nil, &ParseError{f, "bad LOC Longitude seconds", l}, "" |
| } else { |
| rr.Longitude += uint32(1000 * i) |
| } |
| <-c // zBlank |
| // Either number, 'E' or 'W' |
| l = <-c |
| if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok { |
| goto Altitude |
| } |
| // If still alive, flag an error |
| return nil, &ParseError{f, "bad LOC Longitude East/West", l}, "" |
| |
| Altitude: |
| <-c // zBlank |
| l = <-c |
| if l.length == 0 || l.err { |
| return nil, &ParseError{f, "bad LOC Altitude", l}, "" |
| } |
| if l.token[len(l.token)-1] == 'M' || l.token[len(l.token)-1] == 'm' { |
| l.token = l.token[0 : len(l.token)-1] |
| } |
| if i, e := strconv.ParseFloat(l.token, 32); e != nil { |
| return nil, &ParseError{f, "bad LOC Altitude", l}, "" |
| } else { |
| rr.Altitude = uint32(i*100.0 + 10000000.0 + 0.5) |
| } |
| |
| // And now optionally the other values |
| l = <-c |
| count := 0 |
| for l.value != zNewline && l.value != zEOF { |
| switch l.value { |
| case zString: |
| switch count { |
| case 0: // Size |
| e, m, ok := stringToCm(l.token) |
| if !ok { |
| return nil, &ParseError{f, "bad LOC Size", l}, "" |
| } |
| rr.Size = (e & 0x0f) | (m << 4 & 0xf0) |
| case 1: // HorizPre |
| e, m, ok := stringToCm(l.token) |
| if !ok { |
| return nil, &ParseError{f, "bad LOC HorizPre", l}, "" |
| } |
| rr.HorizPre = (e & 0x0f) | (m << 4 & 0xf0) |
| case 2: // VertPre |
| e, m, ok := stringToCm(l.token) |
| if !ok { |
| return nil, &ParseError{f, "bad LOC VertPre", l}, "" |
| } |
| rr.VertPre = (e & 0x0f) | (m << 4 & 0xf0) |
| } |
| count++ |
| case zBlank: |
| // Ok |
| default: |
| return nil, &ParseError{f, "bad LOC Size, HorizPre or VertPre", l}, "" |
| } |
| l = <-c |
| } |
| return rr, nil, "" |
| } |
| |
| func setHIP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(HIP) |
| rr.Hdr = h |
| |
| // HitLength is not represented |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad HIP PublicKeyAlgorithm", l}, "" |
| } |
| rr.PublicKeyAlgorithm = uint8(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| if l.length == 0 || l.err { |
| return nil, &ParseError{f, "bad HIP Hit", l}, "" |
| } |
| rr.Hit = l.token // This can not contain spaces, see RFC 5205 Section 6. |
| rr.HitLength = uint8(len(rr.Hit)) / 2 |
| |
| <-c // zBlank |
| l = <-c // zString |
| if l.length == 0 || l.err { |
| return nil, &ParseError{f, "bad HIP PublicKey", l}, "" |
| } |
| rr.PublicKey = l.token // This cannot contain spaces |
| rr.PublicKeyLength = uint16(base64.StdEncoding.DecodedLen(len(rr.PublicKey))) |
| |
| // RendezvousServers (if any) |
| l = <-c |
| var xs []string |
| for l.value != zNewline && l.value != zEOF { |
| switch l.value { |
| case zString: |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad HIP RendezvousServers", l}, "" |
| } |
| xs = append(xs, name) |
| case zBlank: |
| // Ok |
| default: |
| return nil, &ParseError{f, "bad HIP RendezvousServers", l}, "" |
| } |
| l = <-c |
| } |
| rr.RendezvousServers = xs |
| return rr, nil, l.comment |
| } |
| |
| func setCERT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(CERT) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| if v, ok := StringToCertType[l.token]; ok { |
| rr.Type = v |
| } else if i, e := strconv.ParseUint(l.token, 10, 16); e != nil { |
| return nil, &ParseError{f, "bad CERT Type", l}, "" |
| } else { |
| rr.Type = uint16(i) |
| } |
| <-c // zBlank |
| l = <-c // zString |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad CERT KeyTag", l}, "" |
| } |
| rr.KeyTag = uint16(i) |
| <-c // zBlank |
| l = <-c // zString |
| if v, ok := StringToAlgorithm[l.token]; ok { |
| rr.Algorithm = v |
| } else if i, e := strconv.ParseUint(l.token, 10, 8); e != nil { |
| return nil, &ParseError{f, "bad CERT Algorithm", l}, "" |
| } else { |
| rr.Algorithm = uint8(i) |
| } |
| s, e1, c1 := endingToString(c, "bad CERT Certificate", f) |
| if e1 != nil { |
| return nil, e1, c1 |
| } |
| rr.Certificate = s |
| return rr, nil, c1 |
| } |
| |
| func setOPENPGPKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(OPENPGPKEY) |
| rr.Hdr = h |
| |
| s, e, c1 := endingToString(c, "bad OPENPGPKEY PublicKey", f) |
| if e != nil { |
| return nil, e, c1 |
| } |
| rr.PublicKey = s |
| return rr, nil, c1 |
| } |
| |
| func setCSYNC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(CSYNC) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| j, e := strconv.ParseUint(l.token, 10, 32) |
| if e != nil { |
| // Serial must be a number |
| return nil, &ParseError{f, "bad CSYNC serial", l}, "" |
| } |
| rr.Serial = uint32(j) |
| |
| <-c // zBlank |
| |
| l = <-c |
| j, e = strconv.ParseUint(l.token, 10, 16) |
| if e != nil { |
| // Serial must be a number |
| return nil, &ParseError{f, "bad CSYNC flags", l}, "" |
| } |
| rr.Flags = uint16(j) |
| |
| rr.TypeBitMap = make([]uint16, 0) |
| var ( |
| k uint16 |
| ok bool |
| ) |
| l = <-c |
| for l.value != zNewline && l.value != zEOF { |
| switch l.value { |
| case zBlank: |
| // Ok |
| case zString: |
| if k, ok = StringToType[l.tokenUpper]; !ok { |
| if k, ok = typeToInt(l.tokenUpper); !ok { |
| return nil, &ParseError{f, "bad CSYNC TypeBitMap", l}, "" |
| } |
| } |
| rr.TypeBitMap = append(rr.TypeBitMap, k) |
| default: |
| return nil, &ParseError{f, "bad CSYNC TypeBitMap", l}, "" |
| } |
| l = <-c |
| } |
| return rr, nil, l.comment |
| } |
| |
| func setSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| r, e, s := setRRSIG(h, c, o, f) |
| if r != nil { |
| return &SIG{*r.(*RRSIG)}, e, s |
| } |
| return nil, e, s |
| } |
| |
| func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(RRSIG) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| if t, ok := StringToType[l.tokenUpper]; !ok { |
| if strings.HasPrefix(l.tokenUpper, "TYPE") { |
| t, ok = typeToInt(l.tokenUpper) |
| if !ok { |
| return nil, &ParseError{f, "bad RRSIG Typecovered", l}, "" |
| } |
| rr.TypeCovered = t |
| } else { |
| return nil, &ParseError{f, "bad RRSIG Typecovered", l}, "" |
| } |
| } else { |
| rr.TypeCovered = t |
| } |
| |
| <-c // zBlank |
| l = <-c |
| i, err := strconv.ParseUint(l.token, 10, 8) |
| if err != nil || l.err { |
| return nil, &ParseError{f, "bad RRSIG Algorithm", l}, "" |
| } |
| rr.Algorithm = uint8(i) |
| |
| <-c // zBlank |
| l = <-c |
| i, err = strconv.ParseUint(l.token, 10, 8) |
| if err != nil || l.err { |
| return nil, &ParseError{f, "bad RRSIG Labels", l}, "" |
| } |
| rr.Labels = uint8(i) |
| |
| <-c // zBlank |
| l = <-c |
| i, err = strconv.ParseUint(l.token, 10, 32) |
| if err != nil || l.err { |
| return nil, &ParseError{f, "bad RRSIG OrigTtl", l}, "" |
| } |
| rr.OrigTtl = uint32(i) |
| |
| <-c // zBlank |
| l = <-c |
| if i, err := StringToTime(l.token); err != nil { |
| // Try to see if all numeric and use it as epoch |
| if i, err := strconv.ParseInt(l.token, 10, 64); err == nil { |
| // TODO(miek): error out on > MAX_UINT32, same below |
| rr.Expiration = uint32(i) |
| } else { |
| return nil, &ParseError{f, "bad RRSIG Expiration", l}, "" |
| } |
| } else { |
| rr.Expiration = i |
| } |
| |
| <-c // zBlank |
| l = <-c |
| if i, err := StringToTime(l.token); err != nil { |
| if i, err := strconv.ParseInt(l.token, 10, 64); err == nil { |
| rr.Inception = uint32(i) |
| } else { |
| return nil, &ParseError{f, "bad RRSIG Inception", l}, "" |
| } |
| } else { |
| rr.Inception = i |
| } |
| |
| <-c // zBlank |
| l = <-c |
| i, err = strconv.ParseUint(l.token, 10, 16) |
| if err != nil || l.err { |
| return nil, &ParseError{f, "bad RRSIG KeyTag", l}, "" |
| } |
| rr.KeyTag = uint16(i) |
| |
| <-c // zBlank |
| l = <-c |
| rr.SignerName = l.token |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad RRSIG SignerName", l}, "" |
| } |
| rr.SignerName = name |
| |
| s, e, c1 := endingToString(c, "bad RRSIG Signature", f) |
| if e != nil { |
| return nil, e, c1 |
| } |
| rr.Signature = s |
| |
| return rr, nil, c1 |
| } |
| |
| func setNSEC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NSEC) |
| rr.Hdr = h |
| |
| l := <-c |
| rr.NextDomain = l.token |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad NSEC NextDomain", l}, "" |
| } |
| rr.NextDomain = name |
| |
| rr.TypeBitMap = make([]uint16, 0) |
| var ( |
| k uint16 |
| ok bool |
| ) |
| l = <-c |
| for l.value != zNewline && l.value != zEOF { |
| switch l.value { |
| case zBlank: |
| // Ok |
| case zString: |
| if k, ok = StringToType[l.tokenUpper]; !ok { |
| if k, ok = typeToInt(l.tokenUpper); !ok { |
| return nil, &ParseError{f, "bad NSEC TypeBitMap", l}, "" |
| } |
| } |
| rr.TypeBitMap = append(rr.TypeBitMap, k) |
| default: |
| return nil, &ParseError{f, "bad NSEC TypeBitMap", l}, "" |
| } |
| l = <-c |
| } |
| return rr, nil, l.comment |
| } |
| |
| func setNSEC3(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NSEC3) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NSEC3 Hash", l}, "" |
| } |
| rr.Hash = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NSEC3 Flags", l}, "" |
| } |
| rr.Flags = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NSEC3 Iterations", l}, "" |
| } |
| rr.Iterations = uint16(i) |
| <-c |
| l = <-c |
| if len(l.token) == 0 || l.err { |
| return nil, &ParseError{f, "bad NSEC3 Salt", l}, "" |
| } |
| if l.token != "-" { |
| rr.SaltLength = uint8(len(l.token)) / 2 |
| rr.Salt = l.token |
| } |
| |
| <-c |
| l = <-c |
| if len(l.token) == 0 || l.err { |
| return nil, &ParseError{f, "bad NSEC3 NextDomain", l}, "" |
| } |
| rr.HashLength = 20 // Fix for NSEC3 (sha1 160 bits) |
| rr.NextDomain = l.token |
| |
| rr.TypeBitMap = make([]uint16, 0) |
| var ( |
| k uint16 |
| ok bool |
| ) |
| l = <-c |
| for l.value != zNewline && l.value != zEOF { |
| switch l.value { |
| case zBlank: |
| // Ok |
| case zString: |
| if k, ok = StringToType[l.tokenUpper]; !ok { |
| if k, ok = typeToInt(l.tokenUpper); !ok { |
| return nil, &ParseError{f, "bad NSEC3 TypeBitMap", l}, "" |
| } |
| } |
| rr.TypeBitMap = append(rr.TypeBitMap, k) |
| default: |
| return nil, &ParseError{f, "bad NSEC3 TypeBitMap", l}, "" |
| } |
| l = <-c |
| } |
| return rr, nil, l.comment |
| } |
| |
| func setNSEC3PARAM(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NSEC3PARAM) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NSEC3PARAM Hash", l}, "" |
| } |
| rr.Hash = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NSEC3PARAM Flags", l}, "" |
| } |
| rr.Flags = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NSEC3PARAM Iterations", l}, "" |
| } |
| rr.Iterations = uint16(i) |
| <-c |
| l = <-c |
| if l.token != "-" { |
| rr.SaltLength = uint8(len(l.token)) |
| rr.Salt = l.token |
| } |
| return rr, nil, "" |
| } |
| |
| func setEUI48(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(EUI48) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| if l.length != 17 || l.err { |
| return nil, &ParseError{f, "bad EUI48 Address", l}, "" |
| } |
| addr := make([]byte, 12) |
| dash := 0 |
| for i := 0; i < 10; i += 2 { |
| addr[i] = l.token[i+dash] |
| addr[i+1] = l.token[i+1+dash] |
| dash++ |
| if l.token[i+1+dash] != '-' { |
| return nil, &ParseError{f, "bad EUI48 Address", l}, "" |
| } |
| } |
| addr[10] = l.token[15] |
| addr[11] = l.token[16] |
| |
| i, e := strconv.ParseUint(string(addr), 16, 48) |
| if e != nil { |
| return nil, &ParseError{f, "bad EUI48 Address", l}, "" |
| } |
| rr.Address = i |
| return rr, nil, "" |
| } |
| |
| func setEUI64(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(EUI64) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| if l.length != 23 || l.err { |
| return nil, &ParseError{f, "bad EUI64 Address", l}, "" |
| } |
| addr := make([]byte, 16) |
| dash := 0 |
| for i := 0; i < 14; i += 2 { |
| addr[i] = l.token[i+dash] |
| addr[i+1] = l.token[i+1+dash] |
| dash++ |
| if l.token[i+1+dash] != '-' { |
| return nil, &ParseError{f, "bad EUI64 Address", l}, "" |
| } |
| } |
| addr[14] = l.token[21] |
| addr[15] = l.token[22] |
| |
| i, e := strconv.ParseUint(string(addr), 16, 64) |
| if e != nil { |
| return nil, &ParseError{f, "bad EUI68 Address", l}, "" |
| } |
| rr.Address = uint64(i) |
| return rr, nil, "" |
| } |
| |
| func setSSHFP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(SSHFP) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SSHFP Algorithm", l}, "" |
| } |
| rr.Algorithm = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SSHFP Type", l}, "" |
| } |
| rr.Type = uint8(i) |
| <-c // zBlank |
| s, e1, c1 := endingToString(c, "bad SSHFP Fingerprint", f) |
| if e1 != nil { |
| return nil, e1, c1 |
| } |
| rr.FingerPrint = s |
| return rr, nil, "" |
| } |
| |
| func setDNSKEYs(h RR_Header, c chan lex, o, f, typ string) (RR, *ParseError, string) { |
| rr := new(DNSKEY) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad " + typ + " Flags", l}, "" |
| } |
| rr.Flags = uint16(i) |
| <-c // zBlank |
| l = <-c // zString |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad " + typ + " Protocol", l}, "" |
| } |
| rr.Protocol = uint8(i) |
| <-c // zBlank |
| l = <-c // zString |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad " + typ + " Algorithm", l}, "" |
| } |
| rr.Algorithm = uint8(i) |
| s, e1, c1 := endingToString(c, "bad "+typ+" PublicKey", f) |
| if e1 != nil { |
| return nil, e1, c1 |
| } |
| rr.PublicKey = s |
| return rr, nil, c1 |
| } |
| |
| func setKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| r, e, s := setDNSKEYs(h, c, o, f, "KEY") |
| if r != nil { |
| return &KEY{*r.(*DNSKEY)}, e, s |
| } |
| return nil, e, s |
| } |
| |
| func setDNSKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| r, e, s := setDNSKEYs(h, c, o, f, "DNSKEY") |
| return r, e, s |
| } |
| |
| func setCDNSKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| r, e, s := setDNSKEYs(h, c, o, f, "CDNSKEY") |
| if r != nil { |
| return &CDNSKEY{*r.(*DNSKEY)}, e, s |
| } |
| return nil, e, s |
| } |
| |
| func setRKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(RKEY) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad RKEY Flags", l}, "" |
| } |
| rr.Flags = uint16(i) |
| <-c // zBlank |
| l = <-c // zString |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad RKEY Protocol", l}, "" |
| } |
| rr.Protocol = uint8(i) |
| <-c // zBlank |
| l = <-c // zString |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad RKEY Algorithm", l}, "" |
| } |
| rr.Algorithm = uint8(i) |
| s, e1, c1 := endingToString(c, "bad RKEY PublicKey", f) |
| if e1 != nil { |
| return nil, e1, c1 |
| } |
| rr.PublicKey = s |
| return rr, nil, c1 |
| } |
| |
| func setEID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(EID) |
| rr.Hdr = h |
| s, e, c1 := endingToString(c, "bad EID Endpoint", f) |
| if e != nil { |
| return nil, e, c1 |
| } |
| rr.Endpoint = s |
| return rr, nil, c1 |
| } |
| |
| func setNIMLOC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NIMLOC) |
| rr.Hdr = h |
| s, e, c1 := endingToString(c, "bad NIMLOC Locator", f) |
| if e != nil { |
| return nil, e, c1 |
| } |
| rr.Locator = s |
| return rr, nil, c1 |
| } |
| |
| func setGPOS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(GPOS) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| _, e := strconv.ParseFloat(l.token, 64) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad GPOS Longitude", l}, "" |
| } |
| rr.Longitude = l.token |
| <-c // zBlank |
| l = <-c |
| _, e = strconv.ParseFloat(l.token, 64) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad GPOS Latitude", l}, "" |
| } |
| rr.Latitude = l.token |
| <-c // zBlank |
| l = <-c |
| _, e = strconv.ParseFloat(l.token, 64) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad GPOS Altitude", l}, "" |
| } |
| rr.Altitude = l.token |
| return rr, nil, "" |
| } |
| |
| func setDSs(h RR_Header, c chan lex, o, f, typ string) (RR, *ParseError, string) { |
| rr := new(DS) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad " + typ + " KeyTag", l}, "" |
| } |
| rr.KeyTag = uint16(i) |
| <-c // zBlank |
| l = <-c |
| if i, e = strconv.ParseUint(l.token, 10, 8); e != nil { |
| i, ok := StringToAlgorithm[l.tokenUpper] |
| if !ok || l.err { |
| return nil, &ParseError{f, "bad " + typ + " Algorithm", l}, "" |
| } |
| rr.Algorithm = i |
| } else { |
| rr.Algorithm = uint8(i) |
| } |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad " + typ + " DigestType", l}, "" |
| } |
| rr.DigestType = uint8(i) |
| s, e1, c1 := endingToString(c, "bad "+typ+" Digest", f) |
| if e1 != nil { |
| return nil, e1, c1 |
| } |
| rr.Digest = s |
| return rr, nil, c1 |
| } |
| |
| func setDS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| r, e, s := setDSs(h, c, o, f, "DS") |
| return r, e, s |
| } |
| |
| func setDLV(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| r, e, s := setDSs(h, c, o, f, "DLV") |
| if r != nil { |
| return &DLV{*r.(*DS)}, e, s |
| } |
| return nil, e, s |
| } |
| |
| func setCDS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| r, e, s := setDSs(h, c, o, f, "CDS") |
| if r != nil { |
| return &CDS{*r.(*DS)}, e, s |
| } |
| return nil, e, s |
| } |
| |
| func setTA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(TA) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad TA KeyTag", l}, "" |
| } |
| rr.KeyTag = uint16(i) |
| <-c // zBlank |
| l = <-c |
| if i, e := strconv.ParseUint(l.token, 10, 8); e != nil { |
| i, ok := StringToAlgorithm[l.tokenUpper] |
| if !ok || l.err { |
| return nil, &ParseError{f, "bad TA Algorithm", l}, "" |
| } |
| rr.Algorithm = i |
| } else { |
| rr.Algorithm = uint8(i) |
| } |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad TA DigestType", l}, "" |
| } |
| rr.DigestType = uint8(i) |
| s, e, c1 := endingToString(c, "bad TA Digest", f) |
| if e != nil { |
| return nil, e.(*ParseError), c1 |
| } |
| rr.Digest = s |
| return rr, nil, c1 |
| } |
| |
| func setTLSA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(TLSA) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad TLSA Usage", l}, "" |
| } |
| rr.Usage = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad TLSA Selector", l}, "" |
| } |
| rr.Selector = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad TLSA MatchingType", l}, "" |
| } |
| rr.MatchingType = uint8(i) |
| // So this needs be e2 (i.e. different than e), because...??t |
| s, e2, c1 := endingToString(c, "bad TLSA Certificate", f) |
| if e2 != nil { |
| return nil, e2, c1 |
| } |
| rr.Certificate = s |
| return rr, nil, c1 |
| } |
| |
| func setSMIMEA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(SMIMEA) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SMIMEA Usage", l}, "" |
| } |
| rr.Usage = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SMIMEA Selector", l}, "" |
| } |
| rr.Selector = uint8(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 8) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad SMIMEA MatchingType", l}, "" |
| } |
| rr.MatchingType = uint8(i) |
| // So this needs be e2 (i.e. different than e), because...??t |
| s, e2, c1 := endingToString(c, "bad SMIMEA Certificate", f) |
| if e2 != nil { |
| return nil, e2, c1 |
| } |
| rr.Certificate = s |
| return rr, nil, c1 |
| } |
| |
| func setRFC3597(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(RFC3597) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.token != "\\#" { |
| return nil, &ParseError{f, "bad RFC3597 Rdata", l}, "" |
| } |
| |
| <-c // zBlank |
| l = <-c |
| rdlength, e := strconv.Atoi(l.token) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad RFC3597 Rdata ", l}, "" |
| } |
| |
| s, e1, c1 := endingToString(c, "bad RFC3597 Rdata", f) |
| if e1 != nil { |
| return nil, e1, c1 |
| } |
| if rdlength*2 != len(s) { |
| return nil, &ParseError{f, "bad RFC3597 Rdata", l}, "" |
| } |
| rr.Rdata = s |
| return rr, nil, c1 |
| } |
| |
| func setSPF(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(SPF) |
| rr.Hdr = h |
| |
| s, e, c1 := endingToTxtSlice(c, "bad SPF Txt", f) |
| if e != nil { |
| return nil, e, "" |
| } |
| rr.Txt = s |
| return rr, nil, c1 |
| } |
| |
| func setAVC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(AVC) |
| rr.Hdr = h |
| |
| s, e, c1 := endingToTxtSlice(c, "bad AVC Txt", f) |
| if e != nil { |
| return nil, e, "" |
| } |
| rr.Txt = s |
| return rr, nil, c1 |
| } |
| |
| func setTXT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(TXT) |
| rr.Hdr = h |
| |
| // no zBlank reading here, because all this rdata is TXT |
| s, e, c1 := endingToTxtSlice(c, "bad TXT Txt", f) |
| if e != nil { |
| return nil, e, "" |
| } |
| rr.Txt = s |
| return rr, nil, c1 |
| } |
| |
| // identical to setTXT |
| func setNINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NINFO) |
| rr.Hdr = h |
| |
| s, e, c1 := endingToTxtSlice(c, "bad NINFO ZSData", f) |
| if e != nil { |
| return nil, e, "" |
| } |
| rr.ZSData = s |
| return rr, nil, c1 |
| } |
| |
| func setURI(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(URI) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad URI Priority", l}, "" |
| } |
| rr.Priority = uint16(i) |
| <-c // zBlank |
| l = <-c |
| i, e = strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad URI Weight", l}, "" |
| } |
| rr.Weight = uint16(i) |
| |
| <-c // zBlank |
| s, err, c1 := endingToTxtSlice(c, "bad URI Target", f) |
| if err != nil { |
| return nil, err, "" |
| } |
| if len(s) != 1 { |
| return nil, &ParseError{f, "bad URI Target", l}, "" |
| } |
| rr.Target = s[0] |
| return rr, nil, c1 |
| } |
| |
| func setDHCID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| // awesome record to parse! |
| rr := new(DHCID) |
| rr.Hdr = h |
| |
| s, e, c1 := endingToString(c, "bad DHCID Digest", f) |
| if e != nil { |
| return nil, e, c1 |
| } |
| rr.Digest = s |
| return rr, nil, c1 |
| } |
| |
| func setNID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(NID) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad NID Preference", l}, "" |
| } |
| rr.Preference = uint16(i) |
| <-c // zBlank |
| l = <-c // zString |
| u, err := stringToNodeID(l) |
| if err != nil || l.err { |
| return nil, err, "" |
| } |
| rr.NodeID = u |
| return rr, nil, "" |
| } |
| |
| func setL32(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(L32) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad L32 Preference", l}, "" |
| } |
| rr.Preference = uint16(i) |
| <-c // zBlank |
| l = <-c // zString |
| rr.Locator32 = net.ParseIP(l.token) |
| if rr.Locator32 == nil || l.err { |
| return nil, &ParseError{f, "bad L32 Locator", l}, "" |
| } |
| return rr, nil, "" |
| } |
| |
| func setLP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(LP) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad LP Preference", l}, "" |
| } |
| rr.Preference = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Fqdn = l.token |
| name, nameOk := toAbsoluteName(l.token, o) |
| if l.err || !nameOk { |
| return nil, &ParseError{f, "bad LP Fqdn", l}, "" |
| } |
| rr.Fqdn = name |
| |
| return rr, nil, "" |
| } |
| |
| func setL64(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(L64) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad L64 Preference", l}, "" |
| } |
| rr.Preference = uint16(i) |
| <-c // zBlank |
| l = <-c // zString |
| u, err := stringToNodeID(l) |
| if err != nil || l.err { |
| return nil, err, "" |
| } |
| rr.Locator64 = u |
| return rr, nil, "" |
| } |
| |
| func setUID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(UID) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 32) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad UID Uid", l}, "" |
| } |
| rr.Uid = uint32(i) |
| return rr, nil, "" |
| } |
| |
| func setGID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(GID) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 32) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad GID Gid", l}, "" |
| } |
| rr.Gid = uint32(i) |
| return rr, nil, "" |
| } |
| |
| func setUINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(UINFO) |
| rr.Hdr = h |
| |
| s, e, c1 := endingToTxtSlice(c, "bad UINFO Uinfo", f) |
| if e != nil { |
| return nil, e, c1 |
| } |
| if ln := len(s); ln == 0 { |
| return rr, nil, c1 |
| } |
| rr.Uinfo = s[0] // silently discard anything after the first character-string |
| return rr, nil, c1 |
| } |
| |
| func setPX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(PX) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, "" |
| } |
| |
| i, e := strconv.ParseUint(l.token, 10, 16) |
| if e != nil || l.err { |
| return nil, &ParseError{f, "bad PX Preference", l}, "" |
| } |
| rr.Preference = uint16(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Map822 = l.token |
| map822, map822Ok := toAbsoluteName(l.token, o) |
| if l.err || !map822Ok { |
| return nil, &ParseError{f, "bad PX Map822", l}, "" |
| } |
| rr.Map822 = map822 |
| |
| <-c // zBlank |
| l = <-c // zString |
| rr.Mapx400 = l.token |
| mapx400, mapx400Ok := toAbsoluteName(l.token, o) |
| if l.err || !mapx400Ok { |
| return nil, &ParseError{f, "bad PX Mapx400", l}, "" |
| } |
| rr.Mapx400 = mapx400 |
| |
| return rr, nil, "" |
| } |
| |
| func setCAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(CAA) |
| rr.Hdr = h |
| |
| l := <-c |
| if l.length == 0 { // dynamic update rr. |
| return rr, nil, l.comment |
| } |
| |
| i, err := strconv.ParseUint(l.token, 10, 8) |
| if err != nil || l.err { |
| return nil, &ParseError{f, "bad CAA Flag", l}, "" |
| } |
| rr.Flag = uint8(i) |
| |
| <-c // zBlank |
| l = <-c // zString |
| if l.value != zString { |
| return nil, &ParseError{f, "bad CAA Tag", l}, "" |
| } |
| rr.Tag = l.token |
| |
| <-c // zBlank |
| s, e, c1 := endingToTxtSlice(c, "bad CAA Value", f) |
| if e != nil { |
| return nil, e, "" |
| } |
| if len(s) != 1 { |
| return nil, &ParseError{f, "bad CAA Value", l}, "" |
| } |
| rr.Value = s[0] |
| return rr, nil, c1 |
| } |
| |
| func setTKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { |
| rr := new(TKEY) |
| rr.Hdr = h |
| |
| l := <-c |
| |
| // Algorithm |
| if l.value != zString { |
| return nil, &ParseError{f, "bad TKEY algorithm", l}, "" |
| } |
| rr.Algorithm = l.token |
| <-c // zBlank |
| |
| // Get the key length and key values |
| l = <-c |
| i, err := strconv.ParseUint(l.token, 10, 8) |
| if err != nil || l.err { |
| return nil, &ParseError{f, "bad TKEY key length", l}, "" |
| } |
| rr.KeySize = uint16(i) |
| <-c // zBlank |
| l = <-c |
| if l.value != zString { |
| return nil, &ParseError{f, "bad TKEY key", l}, "" |
| } |
| rr.Key = l.token |
| <-c // zBlank |
| |
| // Get the otherdata length and string data |
| l = <-c |
| i, err = strconv.ParseUint(l.token, 10, 8) |
| if err != nil || l.err { |
| return nil, &ParseError{f, "bad TKEY otherdata length", l}, "" |
| } |
| rr.OtherLen = uint16(i) |
| <-c // zBlank |
| l = <-c |
| if l.value != zString { |
| return nil, &ParseError{f, "bad TKEY otherday", l}, "" |
| } |
| rr.OtherData = l.token |
| |
| return rr, nil, "" |
| } |
| |
| var typeToparserFunc = map[uint16]parserFunc{ |
| TypeAAAA: {setAAAA, false}, |
| TypeAFSDB: {setAFSDB, false}, |
| TypeA: {setA, false}, |
| TypeCAA: {setCAA, true}, |
| TypeCDS: {setCDS, true}, |
| TypeCDNSKEY: {setCDNSKEY, true}, |
| TypeCERT: {setCERT, true}, |
| TypeCNAME: {setCNAME, false}, |
| TypeCSYNC: {setCSYNC, true}, |
| TypeDHCID: {setDHCID, true}, |
| TypeDLV: {setDLV, true}, |
| TypeDNAME: {setDNAME, false}, |
| TypeKEY: {setKEY, true}, |
| TypeDNSKEY: {setDNSKEY, true}, |
| TypeDS: {setDS, true}, |
| TypeEID: {setEID, true}, |
| TypeEUI48: {setEUI48, false}, |
| TypeEUI64: {setEUI64, false}, |
| TypeGID: {setGID, false}, |
| TypeGPOS: {setGPOS, false}, |
| TypeHINFO: {setHINFO, true}, |
| TypeHIP: {setHIP, true}, |
| TypeKX: {setKX, false}, |
| TypeL32: {setL32, false}, |
| TypeL64: {setL64, false}, |
| TypeLOC: {setLOC, true}, |
| TypeLP: {setLP, false}, |
| TypeMB: {setMB, false}, |
| TypeMD: {setMD, false}, |
| TypeMF: {setMF, false}, |
| TypeMG: {setMG, false}, |
| TypeMINFO: {setMINFO, false}, |
| TypeMR: {setMR, false}, |
| TypeMX: {setMX, false}, |
| TypeNAPTR: {setNAPTR, false}, |
| TypeNID: {setNID, false}, |
| TypeNIMLOC: {setNIMLOC, true}, |
| TypeNINFO: {setNINFO, true}, |
| TypeNSAPPTR: {setNSAPPTR, false}, |
| TypeNSEC3PARAM: {setNSEC3PARAM, false}, |
| TypeNSEC3: {setNSEC3, true}, |
| TypeNSEC: {setNSEC, true}, |
| TypeNS: {setNS, false}, |
| TypeOPENPGPKEY: {setOPENPGPKEY, true}, |
| TypePTR: {setPTR, false}, |
| TypePX: {setPX, false}, |
| TypeSIG: {setSIG, true}, |
| TypeRKEY: {setRKEY, true}, |
| TypeRP: {setRP, false}, |
| TypeRRSIG: {setRRSIG, true}, |
| TypeRT: {setRT, false}, |
| TypeSMIMEA: {setSMIMEA, true}, |
| TypeSOA: {setSOA, false}, |
| TypeSPF: {setSPF, true}, |
| TypeAVC: {setAVC, true}, |
| TypeSRV: {setSRV, false}, |
| TypeSSHFP: {setSSHFP, true}, |
| TypeTALINK: {setTALINK, false}, |
| TypeTA: {setTA, true}, |
| TypeTLSA: {setTLSA, true}, |
| TypeTXT: {setTXT, true}, |
| TypeUID: {setUID, false}, |
| TypeUINFO: {setUINFO, true}, |
| TypeURI: {setURI, true}, |
| TypeX25: {setX25, false}, |
| TypeTKEY: {setTKEY, true}, |
| } |