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EDNS: return error on wrong version. (#95)

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Split up the previous changes a bit. This PR only returns the expected
error when the received packet has the wrong EDNS version.

EDNS0 handling in the middleware needs a nicer abstraction, like
ReflectEdns() or something.
This commit is contained in:
Miek Gieben
2016-04-09 11:13:04 +01:00
parent 16c035731c
commit db3d689a8a
5 changed files with 99 additions and 23 deletions
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20
middleware/recorder.go
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@@ -1,7 +1,6 @@
package middleware
import (
"strconv"
"time"
"github.com/miekg/dns"
@@ -54,27 +53,16 @@ func (r *ResponseRecorder) Write(buf []byte) (int, error) {
}
// Size returns the size.
func (r *ResponseRecorder) Size() int {
return r.size
}
func (r *ResponseRecorder) Size() int { return r.size }
// Rcode returns the rcode.
func (r *ResponseRecorder) Rcode() string {
if rcode, ok := dns.RcodeToString[r.rcode]; ok {
return rcode
}
return "RCODE" + strconv.Itoa(r.rcode)
}
func (r *ResponseRecorder) Rcode() string { return RcodeToString(r.rcode) }
// Start returns the start time of the ResponseRecorder.
func (r *ResponseRecorder) Start() time.Time {
return r.start
}
func (r *ResponseRecorder) Start() time.Time { return r.start }
// Msg returns the written message from the ResponseRecorder.
func (r *ResponseRecorder) Msg() *dns.Msg {
return r.msg
}
func (r *ResponseRecorder) Msg() *dns.Msg { return r.msg }
// Hijack implements dns.Hijacker. It simply wraps the underlying
// ResponseWriter's Hijack method if there is one, or returns an error.