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correct EDNS responses (#96)

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Tests updated as well and all the middleware. And Prometheus renamed to
metrics (directive is still prometheus).
This commit is contained in:
Miek Gieben
2016-04-09 16:17:53 +01:00
parent db3d689a8a
commit ad221f4b2a
19 changed files with 192 additions and 143 deletions
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15
server/server.go
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@@ -17,7 +17,7 @@ import (
"github.com/miekg/coredns/middleware"
"github.com/miekg/coredns/middleware/chaos"
"github.com/miekg/coredns/middleware/prometheus"
"github.com/miekg/coredns/middleware/metrics"
"github.com/miekg/dns"
"golang.org/x/net/context"
@@ -282,7 +282,7 @@ func (s *Server) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
if m, err := middleware.Edns0Version(r); err != nil { // Wrong EDNS version, return at once.
qtype := dns.Type(r.Question[0].Qtype).String()
rc := middleware.RcodeToString(dns.RcodeBadVers)
metrics.Report(dropped, qtype, rc, m.Len(), time.Now())
metrics.Report(metrics.Dropped, qtype, rc, m.Len(), time.Now())
w.WriteMsg(m)
return
}
@@ -336,17 +336,16 @@ func (s *Server) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
log.Printf("[INFO] %s - No such zone at %s (Remote: %s)", q, s.Addr, remoteHost)
}
// DefaultErrorFunc responds to an HTTP request with a simple description
// of the specified HTTP status code.
// DefaultErrorFunc responds to an DNS request with an error.
func DefaultErrorFunc(w dns.ResponseWriter, r *dns.Msg, rcode int) {
qtype := dns.Type(r.Question[0].Qtype).String()
state := middleware.State{W: w, Req: r}
rc := middleware.RcodeToString(rcode)
answer := new(dns.Msg)
answer.SetRcode(r, rcode)
// Default zone to dropped (without closing dot, so no zone) here to not blow up this metric.
metrics.Report(dropped, qtype, rc, answer.Len(), time.Now())
state.SizeAndDo(answer)
metrics.Report(metrics.Dropped, state.Type(), rc, answer.Len(), time.Now())
w.WriteMsg(answer)
}
@@ -459,5 +458,3 @@ func RcodeNoClientWrite(rcode int) bool {
}
return false
}
const dropped = "dropped"