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agent: Tell client DNS recursion is available

This commit is contained in:
Armon Dadgar 2014-02-25 16:30:10 -08:00
parent 598cd013b9
commit 60b7fccf02
1 changed files with 3 additions and 0 deletions
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3
command/agent/dns.go
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@ -175,6 +175,7 @@ func (d *DNSServer) handleQuery(resp dns.ResponseWriter, req *dns.Msg) {
m := new(dns.Msg)
m.SetReply(req)
m.Authoritative = true
m.RecursionAvailable = true
// Only add the SOA if requested
if req.Question[0].Qtype == dns.TypeSOA {
@ -208,6 +209,7 @@ func (d *DNSServer) handleTest(resp dns.ResponseWriter, req *dns.Msg) {
m := new(dns.Msg)
m.SetReply(req)
m.Authoritative = true
m.RecursionAvailable = true
header := dns.RR_Header{Name: q.Name, Rrtype: dns.TypeTXT, Class: dns.ClassINET, Ttl: 0}
txt := &dns.TXT{header, []string{"ok"}}
m.Answer = append(m.Answer, txt)
@ -546,6 +548,7 @@ func (d *DNSServer) handleRecurse(resp dns.ResponseWriter, req *dns.Msg) {
d.logger.Printf("[ERR] dns: recurse failed: %v", err)
m := &dns.Msg{}
m.SetReply(req)
m.RecursionAvailable = true
m.SetRcode(req, dns.RcodeServerFailure)
resp.WriteMsg(m)
return