1 files changed, 0 insertions, 46 deletions
diff --git a/middleware/pkg/edns/edns.go b/middleware/pkg/edns/edns.go
deleted file mode 100644
index 6cbe2cdae..000000000
--- a/middleware/pkg/edns/edns.go
+++ /dev/null
@@ -1,46 +0,0 @@
-// Package edns provides function useful for adding/inspecting OPT records to/in messages.
-package edns
-
-import (
-	"errors"
-
-	"github.com/miekg/dns"
-)
-
-// Version checks the EDNS version in the request. If error
-// is nil everything is OK and we can invoke the middleware. If non-nil, the
-// returned Msg is valid to be returned to the client (and should). For some
-// reason this response should not contain a question RR in the question section.
-func Version(req *dns.Msg) (*dns.Msg, error) {
-	opt := req.IsEdns0()
-	if opt == nil {
-		return nil, nil
-	}
-	if opt.Version() == 0 {
-		return nil, nil
-	}
-	m := new(dns.Msg)
-	m.SetReply(req)
-	// zero out question section, wtf.
-	m.Question = nil
-
-	o := new(dns.OPT)
-	o.Hdr.Name = "."
-	o.Hdr.Rrtype = dns.TypeOPT
-	o.SetVersion(0)
-	o.SetExtendedRcode(dns.RcodeBadVers)
-	m.Extra = []dns.RR{o}
-
-	return m, errors.New("EDNS0 BADVERS")
-}
-
-// Size returns a normalized size based on proto.
-func Size(proto string, size int) int {
-	if proto == "tcp" {
-		return dns.MaxMsgSize
-	}
-	if size < dns.MinMsgSize {
-		return dns.MinMsgSize
-	}
-	return size
-}