Mirrors/coredns
1
0
Fork 0
mirror of https://github.com/coredns/coredns.git synced 2025-10-31 02:03:20 -04:00
Code Issues Packages Projects Releases Wiki Activity

Think about wildcards

Browse Source
This commit is contained in:
Miek Gieben
2016-03-29 21:25:06 +01:00
parent ec69798ca2
commit 9ba31ceb87
4 changed files with 230 additions and 150 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
middleware/file/lookup.go
View File

@@ -35,8 +35,9 @@ func (z *Zone) Lookup(qname string, qtype uint16, do bool) ([]dns.RR, []dns.RR,
elem := z.Tree.Get(rr)
if elem == nil {
// wildcard lookup
return z.nameError(elem, rr, do)
if elem == nil {
return z.nameError(elem, rr, do)
}
}
rrs := elem.Types(dns.TypeCNAME)
@@ -71,10 +72,7 @@ func (z *Zone) nameError(elem *tree.Elem, rr dns.RR, do bool) ([]dns.RR, []dns.R
if do {
ret = append(ret, z.SIG...)
// Now we need two NSEC, one to deny the wildcard and one to deny the name.
elem := z.Tree.Prev(rr)
ret = append(ret, z.lookupNSEC(elem, do))
elem = z.Tree.Prev(wildcard(rr))
ret = append(ret, z.lookupNSEC(elem, do))
// Needs closest encloser!!
}
return nil, ret, nil, NameError
}
@@ -142,12 +140,3 @@ func signatureForSubType(rrs []dns.RR, subtype uint16) []dns.RR {
}
return sigs
}
// wildcard returns rr with the first label exchanged for a wildcard '*'.
func wildcard(rr dns.RR) dns.RR {
// root label, TODO(miek)
s := rr.Header().Name
i, _ := dns.NextLabel(s, 0)
rr.Header().Name = "*" + s[i:]
return rr
}