TrueCloudLab/coredns
16
0
Fork 2
Code Issues Pull requests 1 Projects Releases Packages Wiki Activity Actions

middleware/{file, auto}: resolve external CNAMEs

Browse source 
Do the same thing as in etcd and give the option of externally resolving
CNAME. This is needed when CoreDNS is a proxy as well is serving zones.
This commit is contained in:
Miek Gieben 2016-11-09 21:26:49 +00:00
parent a8287bb04d
commit 0919216d3c
10 changed files with 125 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

19
middleware/file/lookup.go
View file

@ -2,6 +2,7 @@ package file
import (
"github.com/miekg/coredns/middleware/file/tree"
"github.com/miekg/coredns/request"
"github.com/miekg/dns"
)
@ -118,7 +119,7 @@ func (z *Zone) Lookup(qname string, qtype uint16, do bool) ([]dns.RR, []dns.RR,
// Found entire name.
if found && shot {
// DNAME...
// DNAME...?
if rrs := elem.Types(dns.TypeCNAME); len(rrs) > 0 && qtype != dns.TypeCNAME {
return z.searchCNAME(elem, rrs, qtype, do)
}
@ -260,8 +261,16 @@ func (z *Zone) searchCNAME(elem *tree.Elem, rrs []dns.RR, qtype uint16, do bool)
}
}
elem, _ = z.Tree.Search(rrs[0].(*dns.CNAME).Target)
targetName := rrs[0].(*dns.CNAME).Target
elem, _ = z.Tree.Search(targetName)
println(targetName)
if elem == nil {
if !dns.IsSubDomain(z.origin, targetName) {
println(targetName, "is not a child of", z.origin)
}
st := request.Request{}
z.Proxy.Lookup(st, targetName, qtype)
return rrs, nil, nil, Success
}
@ -279,8 +288,12 @@ Redo:
rrs = append(rrs, sigs...)
}
}
elem, _ = z.Tree.Search(cname[0].(*dns.CNAME).Target)
targetName := cname[0].(*dns.CNAME).Target
elem, _ = z.Tree.Search(targetName)
if elem == nil {
if !dns.IsSubDomain(z.origin, targetName) {
println(targetName, "is not a child of", z.origin)
}
return rrs, nil, nil, Success
}