TrueCloudLab/coredns
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Pr 586 tweaks (#594)

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* add proxy tcp

* add truncated for tcp to udp response

* move truncation to scrubbing

* add test that executes upstream over tcp

* middleware/proxy: some tweaks

rename force-tcp to force_tcp to be inline with the rest and use
a dnsOptions struct to put the options in to allow it to be extended.
Add some parse tests as well.

* Fix test and rename dnsOptions Options
This commit is contained in:
Miek Gieben 2017-03-14 21:32:21 +00:00 • committed by GitHub
parent 5b32a07ae6
commit 5ac6020f45
6 changed files with 94 additions and 7 deletions
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44
test/proxy_test.go
View file

@ -56,6 +56,50 @@ func TestLookupProxy(t *testing.T) {
}
}
func TestLookupDnsWithForcedTcp(t *testing.T) {
t.Parallel()
name, rm, err := test.TempFile(".", exampleOrg)
if err != nil {
t.Fatalf("failed to create zone: %s", err)
}
defer rm()
corefile := `example.org:0 {
file ` + name + `
}
`
i, err := CoreDNSServer(corefile)
if err != nil {
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
}
_, tcp := CoreDNSServerPorts(i, 0)
if tcp == "" {
t.Fatalf("Could not get TCP listening port")
}
defer i.Stop()
log.SetOutput(ioutil.Discard)
p := proxy.NewLookupWithOption([]string{tcp}, proxy.Options{ForceTCP: true})
state := request.Request{W: &test.ResponseWriter{}, Req: new(dns.Msg)}
resp, err := p.Lookup(state, "example.org.", dns.TypeA)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
// expect answer section with A record in it
if len(resp.Answer) == 0 {
t.Fatalf("Expected to at least one RR in the answer section, got none: %s", resp)
}
if resp.Answer[0].Header().Rrtype != dns.TypeA {
t.Errorf("Expected RR to A, got: %d", resp.Answer[0].Header().Rrtype)
}
if resp.Answer[0].(*dns.A).A.String() != "127.0.0.1" {
t.Errorf("Expected 127.0.0.1, got: %s", resp.Answer[0].(*dns.A).A.String())
}
}
func BenchmarkLookupProxy(b *testing.B) {
t := new(testing.T)
name, rm, err := test.TempFile(".", exampleOrg)