d65cd709cd
* plugin/file: respond correctly to IXFR message
Respond with a sing SOA record to an IXFR request if the SOA serials
match.
The added test fails on the current code with:
~~~
=== RUN TestIxfrResponse
--- FAIL: TestIxfrResponse (0.00s)
secondary_test.go:122: Expected answer section with single RR
FAIL
exit status 1
~~~
And obviously passes with the new code. This should cut down on the
weird number of zone transfers that I was seeing. At some point IXFR
support might be cool.
Fixes: #3176
Signed-off-by: Miek Gieben <miek@miek.nl>
* reuse code
Signed-off-by: Miek Gieben <miek@miek.nl>
* Sligtht tweaks
Signed-off-by: Miek Gieben <miek@miek.nl>
131 lines
2.9 KiB
Go
131 lines
2.9 KiB
Go
package test
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import (
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"testing"
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"time"
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"github.com/coredns/coredns/plugin/test"
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"github.com/miekg/dns"
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)
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func TestEmptySecondaryZone(t *testing.T) {
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// Corefile that fails to transfer example.org.
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corefile := `example.org:0 {
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secondary {
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transfer from 127.0.0.1:1717
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}
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}
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`
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i, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer i.Stop()
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m := new(dns.Msg)
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m.SetQuestion("www.example.org.", dns.TypeA)
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resp, err := dns.Exchange(m, udp)
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if err != nil {
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t.Fatal("Expected to receive reply, but didn't")
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}
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if resp.Rcode != dns.RcodeServerFailure {
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t.Fatalf("Expected reply to be a SERVFAIL, got %d", resp.Rcode)
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}
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}
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func TestSecondaryZoneTransfer(t *testing.T) {
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name, rm, err := test.TempFile(".", exampleOrg)
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if err != nil {
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t.Fatalf("Failed to create zone: %s", err)
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}
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defer rm()
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corefile := `example.org:0 {
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file ` + name + ` {
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transfer to *
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}
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}
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`
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i, _, tcp, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer i.Stop()
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corefile = `example.org:0 {
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secondary {
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transfer from ` + tcp + `
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}
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}
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`
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i1, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer i1.Stop()
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m := new(dns.Msg)
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m.SetQuestion("example.org.", dns.TypeSOA)
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var r *dns.Msg
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// This is now async; we need to wait for it to be transferred.
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for i := 0; i < 10; i++ {
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r, _ = dns.Exchange(m, udp)
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if len(r.Answer) != 0 {
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break
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}
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time.Sleep(100 * time.Microsecond)
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}
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if len(r.Answer) == 0 {
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t.Fatalf("Expected answer section")
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}
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}
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func TestIxfrResponse(t *testing.T) {
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// ixfr query with current soa should return single packet with that soa (no transfer needed).
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name, rm, err := test.TempFile(".", exampleOrg)
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if err != nil {
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t.Fatalf("Failed to create zone: %s", err)
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}
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defer rm()
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corefile := `example.org:0 {
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file ` + name + ` {
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transfer to *
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}
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}
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`
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i, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer i.Stop()
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m := new(dns.Msg)
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m.SetQuestion("example.org.", dns.TypeIXFR)
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m.Ns = []dns.RR{test.SOA("example.org. IN SOA sns.dns.icann.org. noc.dns.icann.org. 2015082541 7200 3600 1209600 3600")} // copied from exampleOrg
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var r *dns.Msg
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// This is now async; we need to wait for it to be transferred.
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for i := 0; i < 10; i++ {
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r, _ = dns.Exchange(m, udp)
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if len(r.Answer) != 0 {
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break
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}
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time.Sleep(100 * time.Microsecond)
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}
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if len(r.Answer) != 1 {
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t.Fatalf("Expected answer section with single RR")
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}
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soa, ok := r.Answer[0].(*dns.SOA)
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if !ok {
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t.Fatalf("Expected answer section with SOA RR")
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}
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if soa.Serial != 2015082541 {
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t.Fatalf("Serial should be %d, got %d", 2015082541, soa.Serial)
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}
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}
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