1188 lines
25 KiB
Go
1188 lines
25 KiB
Go
package dns
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import (
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"encoding/base64"
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"net"
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"strconv"
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"strings"
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)
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// Parse the rdata of each rrtype.
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// All data from the channel c is either _STRING or _BLANK.
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// After the rdata there may come 1 _BLANK and then a _NEWLINE
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// or immediately a _NEWLINE. If this is not the case we flag
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// an *ParseError: garbage after rdata.
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func setRR(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
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var r RR
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e := new(ParseError)
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switch h.Rrtype {
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case TypeA:
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r, e = setA(h, c, f)
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goto Slurp
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case TypeAAAA:
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r, e = setAAAA(h, c, f)
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goto Slurp
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case TypeNS:
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r, e = setNS(h, c, o, f)
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goto Slurp
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case TypePTR:
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r, e = setPTR(h, c, o, f)
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goto Slurp
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case TypeMX:
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r, e = setMX(h, c, o, f)
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goto Slurp
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case TypeCNAME:
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r, e = setCNAME(h, c, o, f)
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goto Slurp
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case TypeDNAME:
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r, e = setDNAME(h, c, o, f)
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goto Slurp
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case TypeSOA:
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r, e = setSOA(h, c, o, f)
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goto Slurp
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case TypeSSHFP:
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r, e = setSSHFP(h, c, f)
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goto Slurp
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case TypeSRV:
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r, e = setSRV(h, c, o, f)
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goto Slurp
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case TypeNAPTR:
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r, e = setNAPTR(h, c, o, f)
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goto Slurp
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case TypeTALINK:
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r, e = setTALINK(h, c, o, f)
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goto Slurp
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case TypeLOC:
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//r, e = setLOC(h, c, f)
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// TODO
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goto Slurp
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// These types have a variable ending: either chunks of txt or chunks/base64 or hex.
|
|
// They need to search for the end of the RR themselves, hence they look for the ending
|
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// newline. Thus there is no need to slurp the remainder, because there is none.
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case TypeDNSKEY:
|
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return setDNSKEY(h, c, f)
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case TypeRRSIG:
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return setRRSIG(h, c, o, f)
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case TypeNSEC:
|
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return setNSEC(h, c, o, f)
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case TypeNSEC3:
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return setNSEC3(h, c, o, f)
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case TypeNSEC3PARAM:
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return setNSEC3PARAM(h, c, f)
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case TypeDS:
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return setDS(h, c, f)
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case TypeDLV:
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return setDLV(h, c, f)
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case TypeTA:
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return setTA(h, c, f)
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case TypeTLSA:
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return setTLSA(h, c, f)
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case TypeTXT:
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return setTXT(h, c, f)
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case TypeHIP:
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return setHIP(h, c, o, f)
|
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case TypeSPF:
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return setSPF(h, c, f)
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case TypeDHCID:
|
|
return setDHCID(h, c, f)
|
|
case TypeIPSECKEY:
|
|
return setIPSECKEY(h, c, o, f)
|
|
default:
|
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// RFC3957 RR (Unknown RR handling)
|
|
return setRFC3597(h, c, f)
|
|
}
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|
Slurp:
|
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if e != nil {
|
|
return nil, e
|
|
}
|
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if se := slurpRemainder(c, f); se != nil {
|
|
return nil, se
|
|
}
|
|
return r, e
|
|
}
|
|
|
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func setA(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_A)
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rr.Hdr = h
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|
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l := <-c
|
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rr.A = net.ParseIP(l.token)
|
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if rr.A == nil {
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return nil, &ParseError{f, "bad A A", l}
|
|
}
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return rr, nil
|
|
}
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|
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func setAAAA(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
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rr := new(RR_AAAA)
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rr.Hdr = h
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l := <-c
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rr.AAAA = net.ParseIP(l.token)
|
|
if rr.AAAA == nil {
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return nil, &ParseError{f, "bad AAAA AAAA", l}
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|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setNS(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_NS)
|
|
rr.Hdr = h
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|
|
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l := <-c
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rr.Ns = l.token
|
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_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad NS Ns", l}
|
|
}
|
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if rr.Ns[ld-1] != '.' {
|
|
rr.Ns = appendOrigin(rr.Ns, o)
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
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func setPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_PTR)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
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rr.Ptr = l.token
|
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_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad PTR Ptr", l}
|
|
}
|
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if rr.Ptr[ld-1] != '.' {
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|
rr.Ptr = appendOrigin(rr.Ptr, o)
|
|
}
|
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return rr, nil
|
|
}
|
|
|
|
func setMX(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
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rr := new(RR_MX)
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rr.Hdr = h
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|
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l := <-c
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if i, e := strconv.Atoi(l.token); e != nil {
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return nil, &ParseError{f, "bad MX Pref", l}
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} else {
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rr.Pref = uint16(i)
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}
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<-c // _BLANK
|
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l = <-c // _STRING
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rr.Mx = l.token
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_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
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return nil, &ParseError{f, "bad MX Mx", l}
|
|
}
|
|
if rr.Mx[ld-1] != '.' {
|
|
rr.Mx = appendOrigin(rr.Mx, o)
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|
}
|
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return rr, nil
|
|
}
|
|
|
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func setCNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
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rr := new(RR_CNAME)
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rr.Hdr = h
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|
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l := <-c
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rr.Target = l.token
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_, ld, ok := IsDomainName(l.token)
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if !ok {
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return nil, &ParseError{f, "bad CNAME Target", l}
|
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}
|
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if rr.Target[ld-1] != '.' {
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|
rr.Target = appendOrigin(rr.Target, o)
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
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func setDNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
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rr := new(RR_DNAME)
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rr.Hdr = h
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|
|
|
l := <-c
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rr.Target = l.token
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_, ld, ok := IsDomainName(l.token)
|
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if !ok {
|
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return nil, &ParseError{f, "bad CNAME Target", l}
|
|
}
|
|
if rr.Target[ld-1] != '.' {
|
|
rr.Target = appendOrigin(rr.Target, o)
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setSOA(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
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rr := new(RR_SOA)
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rr.Hdr = h
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l := <-c
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rr.Ns = l.token
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<-c // _BLANK
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_, ld, ok := IsDomainName(l.token)
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if !ok {
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return nil, &ParseError{f, "bad SOA Ns", l}
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}
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if rr.Ns[ld-1] != '.' {
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rr.Ns = appendOrigin(rr.Ns, o)
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}
|
|
|
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l = <-c
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rr.Mbox = l.token
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_, ld, ok = IsDomainName(l.token)
|
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if !ok {
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return nil, &ParseError{f, "bad SOA Mbox", l}
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}
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if rr.Mbox[ld-1] != '.' {
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rr.Mbox = appendOrigin(rr.Mbox, o)
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}
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<-c // _BLANK
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var v uint32
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for i := 0; i < 5; i++ {
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l = <-c
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if j, e := strconv.Atoi(l.token); e != nil {
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if i == 0 {
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// Serial should be a number
|
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return nil, &ParseError{f, "bad SOA zone parameter", l}
|
|
}
|
|
if v, ok = stringToTtl(l, f); !ok {
|
|
return nil, &ParseError{f, "bad SOA zone parameter", l}
|
|
|
|
}
|
|
} else {
|
|
v = uint32(j)
|
|
}
|
|
switch i {
|
|
case 0:
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|
rr.Serial = v
|
|
<-c // _BLANK
|
|
case 1:
|
|
rr.Refresh = v
|
|
<-c // _BLANK
|
|
case 2:
|
|
rr.Retry = v
|
|
<-c // _BLANK
|
|
case 3:
|
|
rr.Expire = v
|
|
<-c // _BLANK
|
|
case 4:
|
|
rr.Minttl = v
|
|
}
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setSRV(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_SRV)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad SRV Priority", l}
|
|
} else {
|
|
rr.Priority = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
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l = <-c // _STRING
|
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if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad SRV Weight", l}
|
|
} else {
|
|
rr.Weight = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
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l = <-c // _STRING
|
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if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad SRV Port", l}
|
|
} else {
|
|
rr.Port = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
rr.Target = l.token
|
|
_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad SRV Target", l}
|
|
}
|
|
if rr.Target[ld-1] != '.' {
|
|
rr.Target = appendOrigin(rr.Target, o)
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setNAPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_NAPTR)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NAPTR Order", l}
|
|
} else {
|
|
rr.Order = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NAPTR Preference", l}
|
|
} else {
|
|
rr.Preference = uint16(i)
|
|
}
|
|
// Flags
|
|
<-c // _BLANK
|
|
l = <-c // _QUOTE
|
|
if l.value != _QUOTE {
|
|
return nil, &ParseError{f, "bad NAPTR Flags", l}
|
|
}
|
|
l = <-c // Either String or Quote
|
|
if l.value == _STRING {
|
|
rr.Flags = l.token
|
|
l = <-c // _QUOTE
|
|
if l.value != _QUOTE {
|
|
return nil, &ParseError{f, "bad NAPTR Flags", l}
|
|
}
|
|
} else if l.value == _QUOTE {
|
|
rr.Flags = ""
|
|
} else {
|
|
return nil, &ParseError{f, "bad NAPTR Flags", l}
|
|
}
|
|
|
|
// Service
|
|
<-c // _BLANK
|
|
l = <-c // _QUOTE
|
|
if l.value != _QUOTE {
|
|
return nil, &ParseError{f, "bad NAPTR Service", l}
|
|
}
|
|
l = <-c // Either String or Quote
|
|
if l.value == _STRING {
|
|
rr.Service = l.token
|
|
l = <-c // _QUOTE
|
|
if l.value != _QUOTE {
|
|
return nil, &ParseError{f, "bad NAPTR Service", l}
|
|
}
|
|
} else if l.value == _QUOTE {
|
|
rr.Service = ""
|
|
} else {
|
|
return nil, &ParseError{f, "bad NAPTR Service", l}
|
|
}
|
|
|
|
// Regexp
|
|
<-c // _BLANK
|
|
l = <-c // _QUOTE
|
|
if l.value != _QUOTE {
|
|
return nil, &ParseError{f, "bad NAPTR Regexp", l}
|
|
}
|
|
l = <-c // Either String or Quote
|
|
if l.value == _STRING {
|
|
rr.Regexp = l.token
|
|
l = <-c // _QUOTE
|
|
if l.value != _QUOTE {
|
|
return nil, &ParseError{f, "bad NAPTR Regexp", l}
|
|
}
|
|
} else if l.value == _QUOTE {
|
|
rr.Regexp = ""
|
|
} else {
|
|
return nil, &ParseError{f, "bad NAPTR Regexp", l}
|
|
}
|
|
// After quote no space??
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
rr.Replacement = l.token
|
|
_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad NAPTR Replacement", l}
|
|
}
|
|
if rr.Replacement[ld-1] != '.' {
|
|
rr.Replacement = appendOrigin(rr.Replacement, o)
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setTALINK(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_TALINK)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
rr.PreviousName = l.token
|
|
_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad TALINK PreviousName", l}
|
|
}
|
|
if rr.PreviousName[ld-1] != '.' {
|
|
rr.PreviousName = appendOrigin(rr.PreviousName, o)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
rr.NextName = l.token
|
|
_, ld, ok = IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad TALINK NextName", l}
|
|
}
|
|
if rr.NextName[ld-1] != '.' {
|
|
rr.NextName = appendOrigin(rr.NextName, o)
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setHIP(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_HIP)
|
|
rr.Hdr = h
|
|
|
|
// HitLength is not represented
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad HIP PublicKeyAlgorithm", l}
|
|
} else {
|
|
rr.PublicKeyAlgorithm = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
rr.Hit = l.token // This can not contain spaces, see RFC 5205 Section 6.
|
|
rr.HitLength = uint8(len(rr.Hit)) / 2
|
|
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
rr.PublicKey = l.token // This cannot contain spaces
|
|
rr.PublicKeyLength = uint16(base64.StdEncoding.DecodedLen(len(rr.PublicKey)))
|
|
|
|
// RendezvousServers (if any)
|
|
l = <-c
|
|
xs := make([]string, 0)
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad HIP RendezvousServers", l}
|
|
}
|
|
if l.token[ld-1] != '.' {
|
|
l.token = appendOrigin(l.token, o)
|
|
}
|
|
xs = append(xs, l.token)
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad HIP RendezvousServers", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.RendezvousServers = xs
|
|
return rr, nil
|
|
}
|
|
|
|
func setCERT(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_CERT)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad CERT Type", l}
|
|
} else {
|
|
rr.Type = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NAPTR KeyTag", l}
|
|
} else {
|
|
rr.KeyTag = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NAPTR Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
// Get the remaining data until we see a NEWLINE
|
|
l = <-c
|
|
s := ""
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad NAPTR Certificate", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.Certificate = s
|
|
|
|
return rr, nil
|
|
}
|
|
|
|
func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_RRSIG)
|
|
rr.Hdr = h
|
|
l := <-c
|
|
if t, ok := Str_rr[strings.ToUpper(l.token)]; !ok {
|
|
return nil, &ParseError{f, "bad RRSIG Typecovered", l}
|
|
} else {
|
|
rr.TypeCovered = t
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, err := strconv.Atoi(l.token); err != nil {
|
|
return nil, &ParseError{f, "bad RRSIG Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, err := strconv.Atoi(l.token); err != nil {
|
|
return nil, &ParseError{f, "bad RRSIG Labels", l}
|
|
} else {
|
|
rr.Labels = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, err := strconv.Atoi(l.token); err != nil {
|
|
return nil, &ParseError{f, "bad RRSIG OrigTtl", l}
|
|
} else {
|
|
rr.OrigTtl = uint32(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, err := dateToTime(l.token); err != nil {
|
|
return nil, &ParseError{f, "bad RRSIG Expiration", l}
|
|
} else {
|
|
rr.Expiration = i
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, err := dateToTime(l.token); err != nil {
|
|
return nil, &ParseError{f, "bad RRSIG Inception", l}
|
|
} else {
|
|
rr.Inception = i
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, err := strconv.Atoi(l.token); err != nil {
|
|
return nil, &ParseError{f, "bad RRSIG KeyTag", l}
|
|
} else {
|
|
rr.KeyTag = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
rr.SignerName = l.token
|
|
_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad RRSIG SignerName", l}
|
|
}
|
|
if rr.SignerName[ld-1] != '.' {
|
|
rr.SignerName = appendOrigin(rr.SignerName, o)
|
|
}
|
|
// Get the remaining data until we see a NEWLINE
|
|
l = <-c
|
|
s := ""
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad RRSIG Signature", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.Signature = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setNSEC(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_NSEC)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
rr.NextDomain = l.token
|
|
_, ld, ok := IsDomainName(l.token)
|
|
if !ok {
|
|
return nil, &ParseError{f, "bad NSEC NextDomain", l}
|
|
}
|
|
if rr.NextDomain[ld-1] != '.' {
|
|
rr.NextDomain = appendOrigin(rr.NextDomain, o)
|
|
}
|
|
|
|
rr.TypeBitMap = make([]uint16, 0)
|
|
l = <-c
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _BLANK:
|
|
// Ok
|
|
case _STRING:
|
|
if k, ok := Str_rr[strings.ToUpper(l.token)]; !ok {
|
|
return nil, &ParseError{f, "bad NSEC TypeBitMap", l}
|
|
} else {
|
|
rr.TypeBitMap = append(rr.TypeBitMap, k)
|
|
}
|
|
default:
|
|
return nil, &ParseError{f, "bad NSEC TypeBitMap", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setNSEC3(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_NSEC3)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NSEC3 Hash", l}
|
|
} else {
|
|
rr.Hash = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NSEC3 Flags", l}
|
|
} else {
|
|
rr.Flags = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NSEC3 Iterations", l}
|
|
} else {
|
|
rr.Iterations = uint16(i)
|
|
}
|
|
<-c
|
|
l = <-c
|
|
if len(l.token) == 0 {
|
|
return nil, &ParseError{f, "bad NSEC3 Salt", l}
|
|
}
|
|
rr.SaltLength = uint8(len(l.token)) / 2
|
|
rr.Salt = l.token
|
|
|
|
<-c
|
|
l = <-c
|
|
rr.HashLength = 20 // Fix for NSEC3 (sha1 160 bits)
|
|
rr.NextDomain = l.token
|
|
|
|
rr.TypeBitMap = make([]uint16, 0)
|
|
l = <-c
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _BLANK:
|
|
// Ok
|
|
case _STRING:
|
|
if k, ok := Str_rr[strings.ToUpper(l.token)]; !ok {
|
|
return nil, &ParseError{f, "bad NSEC3 TypeBitMap", l}
|
|
} else {
|
|
rr.TypeBitMap = append(rr.TypeBitMap, k)
|
|
}
|
|
default:
|
|
return nil, &ParseError{f, "bad NSEC3 TypeBitMap", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
return rr, nil
|
|
}
|
|
|
|
func setNSEC3PARAM(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_NSEC3PARAM)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NSEC3PARAM Hash", l}
|
|
} else {
|
|
rr.Hash = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NSEC3PARAM Flags", l}
|
|
} else {
|
|
rr.Flags = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad NSEC3PARAM Iterations", l}
|
|
} else {
|
|
rr.Iterations = uint16(i)
|
|
}
|
|
<-c
|
|
l = <-c
|
|
rr.SaltLength = uint8(len(l.token))
|
|
rr.Salt = l.token
|
|
return rr, nil
|
|
}
|
|
|
|
func setSSHFP(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_SSHFP)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad SSHFP Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad SSHFP Type", l}
|
|
} else {
|
|
rr.Type = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
rr.FingerPrint = l.token
|
|
return rr, nil
|
|
}
|
|
|
|
func setDNSKEY(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_DNSKEY)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad DNSKEY Flags", l}
|
|
} else {
|
|
rr.Flags = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad DNSKEY Protocol", l}
|
|
} else {
|
|
rr.Protocol = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c // _STRING
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad DNSKEY Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
l = <-c
|
|
var s string
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad DNSKEY PublicKey", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.PublicKey = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setDS(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_DS)
|
|
rr.Hdr = h
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad DS KeyTag", l}
|
|
} else {
|
|
rr.KeyTag = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
if i, ok := Str_alg[strings.ToUpper(l.token)]; !ok {
|
|
return nil, &ParseError{f, "bad DS Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = i
|
|
}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad DS DigestType", l}
|
|
} else {
|
|
rr.DigestType = uint8(i)
|
|
}
|
|
// There can be spaces here...
|
|
l = <-c
|
|
s := ""
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad DS Digest", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.Digest = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setDLV(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_DLV)
|
|
rr.Hdr = h
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad DLV KeyTag", l}
|
|
} else {
|
|
rr.KeyTag = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
if i, ok := Str_alg[strings.ToUpper(l.token)]; !ok {
|
|
return nil, &ParseError{f, "bad DLV Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = i
|
|
}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad DLV DigestType", l}
|
|
} else {
|
|
rr.DigestType = uint8(i)
|
|
}
|
|
// There can be spaces here...
|
|
l = <-c
|
|
s := ""
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad DLV Digest", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.Digest = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setTA(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_TA)
|
|
rr.Hdr = h
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad TA KeyTag", l}
|
|
} else {
|
|
rr.KeyTag = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
if i, ok := Str_alg[strings.ToUpper(l.token)]; !ok {
|
|
return nil, &ParseError{f, "bad TA Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = i
|
|
}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad TA DigestType", l}
|
|
} else {
|
|
rr.DigestType = uint8(i)
|
|
}
|
|
// There can be spaces here...
|
|
l = <-c
|
|
s := ""
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad TA Digest", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.Digest = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setTLSA(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_TLSA)
|
|
rr.Hdr = h
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad TLSA Usage", l}
|
|
} else {
|
|
rr.Usage = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad TLSA Selector", l}
|
|
} else {
|
|
rr.Selector = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad TLSA MatchingType", l}
|
|
} else {
|
|
rr.MatchingType = uint8(i)
|
|
}
|
|
// There can be spaces here...
|
|
l = <-c
|
|
s := ""
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad TLSA Certificate", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.Certificate = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setRFC3597(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_RFC3597)
|
|
rr.Hdr = h
|
|
l := <-c
|
|
if l.token != "\\#" {
|
|
return nil, &ParseError{f, "unkown RR type", l}
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
rdlength, e := strconv.Atoi(l.token)
|
|
if e != nil {
|
|
return nil, &ParseError{f, "bad RFC3597 Rdata", l}
|
|
}
|
|
// There can be spaces here...
|
|
l = <-c
|
|
s := ""
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad RFC3597 Rdata", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
if rdlength*2 != len(s) {
|
|
return nil, &ParseError{f, "bad RFC3597 Rdata", l}
|
|
}
|
|
rr.Rdata = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setSPF(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_SPF)
|
|
rr.Hdr = h
|
|
|
|
// Get the remaining data until we see a NEWLINE
|
|
quote := false
|
|
l := <-c
|
|
var s []string
|
|
switch l.value == _QUOTE {
|
|
case true: // A number of quoted string
|
|
s = make([]string, 0)
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s = append(s, l.token)
|
|
case _BLANK:
|
|
if quote {
|
|
// _BLANK can only be seen in between txt parts.
|
|
return nil, &ParseError{f, "bad SPF Txt", l}
|
|
}
|
|
case _QUOTE:
|
|
quote = !quote
|
|
default:
|
|
return nil, &ParseError{f, "bad SPF Txt", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
if quote {
|
|
return nil, &ParseError{f, "bad SPF Txt", l}
|
|
}
|
|
case false: // Unquoted text record
|
|
s = make([]string, 1)
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
s[0] += l.token
|
|
l = <-c
|
|
}
|
|
}
|
|
rr.Txt = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setTXT(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_TXT)
|
|
rr.Hdr = h
|
|
|
|
// Get the remaining data until we see a NEWLINE
|
|
quote := false
|
|
l := <-c
|
|
var s []string
|
|
switch l.value == _QUOTE {
|
|
case true: // A number of quoted string
|
|
s = make([]string, 0)
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s = append(s, l.token)
|
|
case _BLANK:
|
|
if quote {
|
|
// _BLANK can only be seen in between txt parts.
|
|
return nil, &ParseError{f, "bad TXT Txt", l}
|
|
}
|
|
case _QUOTE:
|
|
quote = !quote
|
|
default:
|
|
return nil, &ParseError{f, "bad TXT Txt", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
if quote {
|
|
return nil, &ParseError{f, "bad TXT Txt", l}
|
|
}
|
|
case false: // Unquoted text record
|
|
s = make([]string, 1)
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
s[0] += l.token
|
|
l = <-c
|
|
}
|
|
}
|
|
rr.Txt = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setURI(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
rr := new(RR_URI)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad URI Priority", l}
|
|
} else {
|
|
rr.Priority = uint16(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad URI Weight", l}
|
|
} else {
|
|
rr.Weight = uint16(i)
|
|
}
|
|
// _BLANK?
|
|
|
|
// Get the remaining data until we see a NEWLINE
|
|
quote := false
|
|
l = <-c
|
|
var s string
|
|
switch l.value == _QUOTE {
|
|
case true:
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
if quote {
|
|
// _BLANK can only be seen in between txt parts.
|
|
return nil, &ParseError{f, "bad URI Target", l}
|
|
}
|
|
case _QUOTE:
|
|
quote = !quote
|
|
default:
|
|
return nil, &ParseError{f, "bad URI Target", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
if quote {
|
|
return nil, &ParseError{f, "bad URI Target", l}
|
|
}
|
|
case false: // Unquoted
|
|
return nil, &ParseError{f, "bad URI Target", l}
|
|
}
|
|
rr.Target = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setIPSECKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError) {
|
|
rr := new(RR_IPSECKEY)
|
|
rr.Hdr = h
|
|
|
|
l := <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad IPSECKEY Precedence", l}
|
|
} else {
|
|
rr.Precedence = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad IPSECKEY GatewayType", l}
|
|
} else {
|
|
rr.GatewayType = uint8(i)
|
|
}
|
|
<-c // _BLANK
|
|
l = <-c
|
|
if i, e := strconv.Atoi(l.token); e != nil {
|
|
return nil, &ParseError{f, "bad IPSECKEY Algorithm", l}
|
|
} else {
|
|
rr.Algorithm = uint8(i)
|
|
}
|
|
<-c
|
|
l = <-c
|
|
rr.Gateway = l.token
|
|
l = <-c
|
|
var s string
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad IPSECKEY PublicKey", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.PublicKey = s
|
|
return rr, nil
|
|
}
|
|
|
|
func setDHCID(h RR_Header, c chan lex, f string) (RR, *ParseError) {
|
|
// awesome record to parse!
|
|
rr := new(RR_DHCID)
|
|
rr.Hdr = h
|
|
|
|
l := <-c // _STRING
|
|
var s string
|
|
for l.value != _NEWLINE && l.value != _EOF {
|
|
switch l.value {
|
|
case _STRING:
|
|
s += l.token
|
|
case _BLANK:
|
|
// Ok
|
|
default:
|
|
return nil, &ParseError{f, "bad DHCID Digest", l}
|
|
}
|
|
l = <-c
|
|
}
|
|
rr.Digest = s
|
|
return rr, nil
|
|
}
|