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1aa1a92198
This adds an online dnssec middleware. The middleware will sign responses on the fly. Negative responses are signed with NSEC black lies.
54 lines
1.1 KiB
Go
54 lines
1.1 KiB
Go
package dnssec
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import "github.com/miekg/dns"
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// newRRSIG return a new RRSIG, with all fields filled out, except the signed data.
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func (k *DNSKEY) NewRRSIG(signerName string, ttl, incep, expir uint32) *dns.RRSIG {
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sig := new(dns.RRSIG)
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sig.Hdr.Rrtype = dns.TypeRRSIG
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sig.Algorithm = k.K.Algorithm
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sig.KeyTag = k.keytag
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sig.SignerName = signerName
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sig.Hdr.Ttl = ttl
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sig.OrigTtl = origTtl
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sig.Inception = incep
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sig.Expiration = expir
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return sig
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}
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type rrset struct {
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qname string
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qtype uint16
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}
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// rrSets returns rrs as a map of RRsets. It skips RRSIG and OPT records as those don't need to be signed.
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func rrSets(rrs []dns.RR) map[rrset][]dns.RR {
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m := make(map[rrset][]dns.RR)
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for _, r := range rrs {
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if r.Header().Rrtype == dns.TypeRRSIG || r.Header().Rrtype == dns.TypeOPT {
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continue
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}
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if s, ok := m[rrset{r.Header().Name, r.Header().Rrtype}]; ok {
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s = append(s, r)
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m[rrset{r.Header().Name, r.Header().Rrtype}] = s
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continue
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}
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s := make([]dns.RR, 1, 3)
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s[0] = r
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m[rrset{r.Header().Name, r.Header().Rrtype}] = s
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}
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if len(m) > 0 {
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return m
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}
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return nil
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}
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const origTtl = 3600
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