6bb08ffee4
* Easier way to dnstap? * Remove unnecessary function parameter from Tapper * golint * golint 2 * Proxy dnstap tests * README.md & doc * net.IP * Proxy test was incorrect * Small changes * Update README.md * Was not reporting dnstap errors + test * Wasn't working at all, now it's ok * Thanks Travis
56 lines
1 KiB
Go
56 lines
1 KiB
Go
package proxy
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/coredns/coredns/plugin/dnstap"
|
|
"github.com/coredns/coredns/plugin/dnstap/msg"
|
|
"github.com/coredns/coredns/request"
|
|
|
|
tap "github.com/dnstap/golang-dnstap"
|
|
"github.com/miekg/dns"
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
func toDnstap(ctx context.Context, host string, ex Exchanger, state request.Request, reply *dns.Msg, start time.Time) error {
|
|
tapper := dnstap.TapperFromContext(ctx)
|
|
if tapper == nil {
|
|
return nil
|
|
}
|
|
|
|
// Query
|
|
b := msg.New().Time(start).HostPort(host)
|
|
|
|
t := ex.Transport()
|
|
if t == "" {
|
|
t = state.Proto()
|
|
}
|
|
if t == "tcp" {
|
|
b.SocketProto = tap.SocketProtocol_TCP
|
|
} else {
|
|
b.SocketProto = tap.SocketProtocol_UDP
|
|
}
|
|
|
|
if tapper.Pack() {
|
|
b.Msg(state.Req)
|
|
}
|
|
m, err := b.ToOutsideQuery(tap.Message_FORWARDER_QUERY)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
tapper.TapMessage(m)
|
|
|
|
// Response
|
|
if reply != nil {
|
|
if tapper.Pack() {
|
|
b.Msg(reply)
|
|
}
|
|
m, err := b.Time(time.Now()).ToOutsideResponse(tap.Message_FORWARDER_RESPONSE)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
tapper.TapMessage(m)
|
|
}
|
|
|
|
return nil
|
|
}
|