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											2017-05-26 17:37:06 +08:00
										 |  |  | package file
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							|  |  |  | 
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							|  |  |  | import (
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							| 
									
										
										
										
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										 |  |  | 	"context"
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							| 
									
										
										
										
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										 |  |  | 	"strings"
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							|  |  |  | 	"testing"
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							|  |  |  | 
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										 |  |  | 	"github.com/coredns/coredns/plugin/pkg/dnstest"
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							| 
									
										
										
										
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										 |  |  | 	"github.com/coredns/coredns/plugin/test"
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										 |  |  | 
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							|  |  |  | 	"github.com/miekg/dns"
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							|  |  |  | )
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							|  |  |  | 
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							|  |  |  | // RFC 6672, Section 2.2. Assuming QTYPE != DNAME.
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							|  |  |  | var dnameSubstitutionTestCases = []struct {
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							|  |  |  | 	qname    string
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							|  |  |  | 	owner    string
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							|  |  |  | 	target   string
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							|  |  |  | 	expected string
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							|  |  |  | }{
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							|  |  |  | 	{"com.", "example.com.", "example.net.", ""},
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							|  |  |  | 	{"example.com.", "example.com.", "example.net.", ""},
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							|  |  |  | 	{"a.example.com.", "example.com.", "example.net.", "a.example.net."},
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							|  |  |  | 	{"a.b.example.com.", "example.com.", "example.net.", "a.b.example.net."},
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							|  |  |  | 	{"ab.example.com.", "b.example.com.", "example.net.", ""},
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							|  |  |  | 	{"foo.example.com.", "example.com.", "example.net.", "foo.example.net."},
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							|  |  |  | 	{"a.x.example.com.", "x.example.com.", "example.net.", "a.example.net."},
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							|  |  |  | 	{"a.example.com.", "example.com.", "y.example.net.", "a.y.example.net."},
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							|  |  |  | 	{"cyc.example.com.", "example.com.", "example.com.", "cyc.example.com."},
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							|  |  |  | 	{"cyc.example.com.", "example.com.", "c.example.com.", "cyc.c.example.com."},
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							|  |  |  | 	{"shortloop.x.x.", "x.", ".", "shortloop.x."},
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							|  |  |  | 	{"shortloop.x.", "x.", ".", "shortloop."},
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							|  |  |  | }
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							|  |  |  | 
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							|  |  |  | func TestDNAMESubstitution(t *testing.T) {
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							|  |  |  | 	for i, tc := range dnameSubstitutionTestCases {
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							|  |  |  | 		result := substituteDNAME(tc.qname, tc.owner, tc.target)
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							|  |  |  | 		if result != tc.expected {
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							|  |  |  | 			if result == "" {
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							|  |  |  | 				result = "<no match>"
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							|  |  |  | 			}
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							|  |  |  | 
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							|  |  |  | 			t.Errorf("Case %d: Expected %s -> %s, got %v", i, tc.qname, tc.expected, result)
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							|  |  |  | 			return
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							|  |  |  | 		}
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							|  |  |  | 	}
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							|  |  |  | }
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							|  |  |  | 
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							|  |  |  | var dnameTestCases = []test.Case{
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							|  |  |  | 	{
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							|  |  |  | 		Qname: "dname.miek.nl.", Qtype: dns.TypeDNAME,
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							|  |  |  | 		Answer: []dns.RR{
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							|  |  |  | 			test.DNAME("dname.miek.nl.	1800	IN	DNAME	test.miek.nl."),
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							|  |  |  | 		},
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							|  |  |  | 		Ns: miekAuth,
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							|  |  |  | 	},
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							|  |  |  | 	{
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							|  |  |  | 		Qname: "dname.miek.nl.", Qtype: dns.TypeA,
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							|  |  |  | 		Answer: []dns.RR{
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							|  |  |  | 			test.A("dname.miek.nl.	1800	IN	A	127.0.0.1"),
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							|  |  |  | 		},
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							|  |  |  | 		Ns: miekAuth,
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							|  |  |  | 	},
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							|  |  |  | 	{
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							|  |  |  | 		Qname: "dname.miek.nl.", Qtype: dns.TypeMX,
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							|  |  |  | 		Answer: []dns.RR{},
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							|  |  |  | 		Ns: []dns.RR{
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							|  |  |  | 			test.SOA("miek.nl.	1800	IN	SOA	linode.atoom.net. miek.miek.nl. 1282630057 14400 3600 604800 14400"),
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							|  |  |  | 		},
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							|  |  |  | 	},
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							|  |  |  | 	{
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							|  |  |  | 		Qname: "a.dname.miek.nl.", Qtype: dns.TypeA,
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							|  |  |  | 		Answer: []dns.RR{
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							|  |  |  | 			test.CNAME("a.dname.miek.nl.	1800	IN	CNAME	a.test.miek.nl."),
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							|  |  |  | 			test.A("a.test.miek.nl.	1800	IN	A	139.162.196.78"),
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							|  |  |  | 			test.DNAME("dname.miek.nl.	1800	IN	DNAME	test.miek.nl."),
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							|  |  |  | 		},
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							|  |  |  | 		Ns: miekAuth,
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							|  |  |  | 	},
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							|  |  |  | 	{
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							|  |  |  | 		Qname: "www.dname.miek.nl.", Qtype: dns.TypeA,
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							|  |  |  | 		Answer: []dns.RR{
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							|  |  |  | 			test.A("a.test.miek.nl.	1800	IN	A	139.162.196.78"),
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							|  |  |  | 			test.DNAME("dname.miek.nl.	1800	IN	DNAME	test.miek.nl."),
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							|  |  |  | 			test.CNAME("www.dname.miek.nl.	1800	IN	CNAME	www.test.miek.nl."),
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							|  |  |  | 			test.CNAME("www.test.miek.nl.	1800	IN	CNAME	a.test.miek.nl."),
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							|  |  |  | 		},
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							|  |  |  | 		Ns: miekAuth,
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							|  |  |  | 	},
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							|  |  |  | }
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							|  |  |  | 
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							|  |  |  | func TestLookupDNAME(t *testing.T) {
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										 |  |  | 	zone, err := Parse(strings.NewReader(dbMiekNLDNAME), testzone, "stdin", 0)
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										 |  |  | 	if err != nil {
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							|  |  |  | 		t.Fatalf("Expect no error when reading zone, got %q", err)
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							|  |  |  | 	}
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							|  |  |  | 
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							|  |  |  | 	fm := File{Next: test.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{testzone: zone}, Names: []string{testzone}}}
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							|  |  |  | 	ctx := context.TODO()
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							|  |  |  | 
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							|  |  |  | 	for _, tc := range dnameTestCases {
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							|  |  |  | 		m := tc.Msg()
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							|  |  |  | 
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										 |  |  | 		rec := dnstest.NewRecorder(&test.ResponseWriter{})
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										 |  |  | 		_, err := fm.ServeDNS(ctx, rec, m)
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							|  |  |  | 		if err != nil {
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							|  |  |  | 			t.Errorf("Expected no error, got %v\n", err)
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							|  |  |  | 			return
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							|  |  |  | 		}
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							|  |  |  | 
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							|  |  |  | 		resp := rec.Msg
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										 |  |  | 		test.SortAndCheck(t, resp, tc)
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										 |  |  | 	}
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							|  |  |  | }
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							|  |  |  | 
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										 |  |  | var dnameDnssecTestCases = []test.Case{
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							|  |  |  | 	{
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							|  |  |  | 		// We have no auth section, because the test zone does not have nameservers.
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							|  |  |  | 		Qname: "ns.example.org.", Qtype: dns.TypeA,
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							|  |  |  | 		Answer: []dns.RR{
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							|  |  |  | 			test.A("ns.example.org.	1800	IN	A	127.0.0.1"),
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							|  |  |  | 		},
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							|  |  |  | 	},
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							|  |  |  | 	{
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										 |  |  | 		Qname: "dname.example.org.", Qtype: dns.TypeDNAME, Do: true,
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										 |  |  | 		Answer: []dns.RR{
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							|  |  |  | 			test.DNAME("dname.example.org.	1800	IN	DNAME	test.example.org."),
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							|  |  |  | 			test.RRSIG("dname.example.org.	1800	IN	RRSIG	DNAME 5 3 1800 20170702091734 20170602091734 54282 example.org. HvXtiBM="),
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							|  |  |  | 		},
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							|  |  |  | 	},
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							|  |  |  | 	{
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										 |  |  | 		Qname: "a.dname.example.org.", Qtype: dns.TypeA, Do: true,
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										 |  |  | 		Answer: []dns.RR{
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							|  |  |  | 			test.CNAME("a.dname.example.org.	1800	IN	CNAME	a.test.example.org."),
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							|  |  |  | 			test.DNAME("dname.example.org.	1800	IN	DNAME	test.example.org."),
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							|  |  |  | 			test.RRSIG("dname.example.org.	1800	IN	RRSIG	DNAME 5 3 1800 20170702091734 20170602091734 54282 example.org. HvXtiBM="),
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							|  |  |  | 		},
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							|  |  |  | 	},
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							|  |  |  | }
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							|  |  |  | 
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							|  |  |  | func TestLookupDNAMEDNSSEC(t *testing.T) {
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										 |  |  | 	zone, err := Parse(strings.NewReader(dbExampleDNAMESigned), testzone, "stdin", 0)
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										 |  |  | 	if err != nil {
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							|  |  |  | 		t.Fatalf("Expect no error when reading zone, got %q", err)
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							|  |  |  | 	}
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							|  |  |  | 
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							|  |  |  | 	fm := File{Next: test.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{"example.org.": zone}, Names: []string{"example.org."}}}
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							|  |  |  | 	ctx := context.TODO()
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							|  |  |  | 
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							|  |  |  | 	for _, tc := range dnameDnssecTestCases {
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							|  |  |  | 		m := tc.Msg()
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							|  |  |  | 
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										 |  |  | 		rec := dnstest.NewRecorder(&test.ResponseWriter{})
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										 |  |  | 		_, err := fm.ServeDNS(ctx, rec, m)
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							|  |  |  | 		if err != nil {
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							|  |  |  | 			t.Errorf("Expected no error, got %v\n", err)
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							|  |  |  | 			return
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							|  |  |  | 		}
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							|  |  |  | 
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							|  |  |  | 		resp := rec.Msg
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										 |  |  | 		test.SortAndCheck(t, resp, tc)
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										 |  |  | 	}
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							|  |  |  | }
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							|  |  |  | 
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										 |  |  | const dbMiekNLDNAME = `
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							|  |  |  | $TTL    30M
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							|  |  |  | $ORIGIN miek.nl.
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							|  |  |  | @       IN      SOA     linode.atoom.net. miek.miek.nl. (
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							|  |  |  |                              1282630057 ; Serial
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							|  |  |  |                              4H         ; Refresh
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							|  |  |  |                              1H         ; Retry
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							|  |  |  |                              7D         ; Expire
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							|  |  |  |                              4H )       ; Negative Cache TTL
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							|  |  |  |                 IN      NS      linode.atoom.net.
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							|  |  |  |                 IN      NS      ns-ext.nlnetlabs.nl.
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							|  |  |  |                 IN      NS      omval.tednet.nl.
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							|  |  |  |                 IN      NS      ext.ns.whyscream.net.
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							|  |  |  | 
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							|  |  |  | test            IN      MX      1  aspmx.l.google.com.
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							|  |  |  |                 IN      MX      5  alt1.aspmx.l.google.com.
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							|  |  |  |                 IN      MX      5  alt2.aspmx.l.google.com.
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							|  |  |  |                 IN      MX      10 aspmx2.googlemail.com.
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							|  |  |  |                 IN      MX      10 aspmx3.googlemail.com.
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							|  |  |  | a.test          IN      A       139.162.196.78
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							|  |  |  |                 IN      AAAA    2a01:7e00::f03c:91ff:fef1:6735
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							|  |  |  | www.test        IN      CNAME   a.test
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							|  |  |  | 
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							|  |  |  | dname           IN      DNAME   test
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							|  |  |  | dname           IN      A       127.0.0.1
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							|  |  |  | a.dname         IN      A       127.0.0.1
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							|  |  |  | `
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							| 
									
										
										
										
											2017-06-02 17:18:58 +01:00
										 |  |  | 
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							|  |  |  | const dbExampleDNAMESigned = `
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							|  |  |  | ; File written on Fri Jun  2 10:17:34 2017
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							|  |  |  | ; dnssec_signzone version 9.10.3-P4-Debian
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							|  |  |  | example.org.		1800	IN SOA	a.example.org. b.example.org. (
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							|  |  |  | 					1282630057 ; serial
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							|  |  |  | 					14400      ; refresh (4 hours)
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							|  |  |  | 					3600       ; retry (1 hour)
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							|  |  |  | 					604800     ; expire (1 week)
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							|  |  |  | 					14400      ; minimum (4 hours)
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							|  |  |  | 					)
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							|  |  |  | 			1800	RRSIG	SOA 5 2 1800 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					mr5eQtFs1GubgwaCcqrpiF6Cgi822OkESPeV
 | 
					
						
							|  |  |  | 					X0OJYq3JzthJjHw8TfYAJWQ2yGqhlePHir9h
 | 
					
						
							|  |  |  | 					FT/uFZdYyytHq+qgIUbJ9IVCrq0gZISZdHML
 | 
					
						
							|  |  |  | 					Ry1DNffMR9CpD77KocOAUABfopcvH/3UGOHn
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							|  |  |  | 					TFxkAr447zPaaoC68JYGxYLfZk8= )
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							|  |  |  | 			1800	NS	ns.example.org.
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							|  |  |  | 			1800	RRSIG	NS 5 2 1800 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					McM4UdMxkscVQkJnnEbdqwyjpPgq5a/EuOLA
 | 
					
						
							|  |  |  | 					r2MvG43/cwOaWULiZoNzLi5Rjzhf+GTeVTan
 | 
					
						
							|  |  |  | 					jw6EsL3gEuYI1nznwlLQ04/G0XAHjbq5VvJc
 | 
					
						
							|  |  |  | 					rlscBD+dzf774yfaTjRNoeo2xTem6S7nyYPW
 | 
					
						
							|  |  |  | 					Y+1f6xkrsQPLYJfZ6VZ9QqyupBw= )
 | 
					
						
							|  |  |  | 			14400	NSEC	dname.example.org. NS SOA RRSIG NSEC DNSKEY
 | 
					
						
							|  |  |  | 			14400	RRSIG	NSEC 5 2 14400 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					VT+IbjDFajM0doMKFipdX3+UXfCn3iHIxg5x
 | 
					
						
							|  |  |  | 					LElp4Q/YddTbX+6tZf53+EO+G8Kye3JDLwEl
 | 
					
						
							|  |  |  | 					o8VceijNeF3igZ+LiZuXCei5Qg/TJ7IAUnAO
 | 
					
						
							|  |  |  | 					xd85IWwEYwyKkKd6Z2kXbAN2pdcHE8EmboQd
 | 
					
						
							|  |  |  | 					wfTr9oyWhpZk1Z+pN8vdejPrG0M= )
 | 
					
						
							|  |  |  | 			1800	DNSKEY	256 3 5 (
 | 
					
						
							|  |  |  | 					AwEAAczLlmTk5bMXUzpBo/Jta6MWSZYy3Nfw
 | 
					
						
							|  |  |  | 					gz8t/pkfSh4IlFF6vyXZhEqCeQsCBdD7ltkD
 | 
					
						
							|  |  |  | 					h5qd4A+nFrYOMwsi5XIjoHMlJN15xwFS9EgS
 | 
					
						
							|  |  |  | 					ZrZmuxePIEiYB5KccEf9JQMgM1t07Iu1FnrY
 | 
					
						
							|  |  |  | 					02OuAqGWcO4tuyTLaK3QP4MLQOfAgKqf
 | 
					
						
							|  |  |  | 					) ; ZSK; alg = RSASHA1; key id = 54282
 | 
					
						
							|  |  |  | 			1800	RRSIG	DNSKEY 5 2 1800 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					MBgSRtZ6idJblLIHxZWpWL/1oqIwImb1mkl7
 | 
					
						
							|  |  |  | 					hDFxqV6Hw19yLX06P7gcJEWiisdZBkVEfcOK
 | 
					
						
							|  |  |  | 					LeMJly05vgKfrMzLgIu2Ry4bL8AMKc8NMXBG
 | 
					
						
							|  |  |  | 					b1VDCEBW69P2omogj2KnORHDCZQr/BX9+wBU
 | 
					
						
							|  |  |  | 					5rIMTTKlMSI5sT6ecJHHEymtiac= )
 | 
					
						
							|  |  |  | dname.example.org.	1800	IN A	127.0.0.1
 | 
					
						
							|  |  |  | 			1800	RRSIG	A 5 3 1800 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					LPCK2nLyDdGwvmzGLkUO2atEUjoc+aEspkC3
 | 
					
						
							|  |  |  | 					keZCdXZaLnAwBH7dNAjvvXzzy0WrgWeiyDb4
 | 
					
						
							|  |  |  | 					+rJ2N0oaKEZicM4QQDHKhugJblKbU5G4qTey
 | 
					
						
							|  |  |  | 					LSEaV3vvQnzGd0S6dCqnwfPj9czagFN7Zlf5
 | 
					
						
							|  |  |  | 					DmLtdxx0aiDPCUpqT0+H/vuGPfk= )
 | 
					
						
							|  |  |  | 			1800	DNAME	test.example.org.
 | 
					
						
							|  |  |  | 			1800	RRSIG	DNAME 5 3 1800 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					HvX79T1flWJ8H9/1XZjX6gz8rP/o2jbfPXJ9
 | 
					
						
							|  |  |  | 					vC7ids/ZJilSReabLru4DCqcw1IV2DM/CZdE
 | 
					
						
							|  |  |  | 					tBnED/T2PJXvMut9tnYMrz+ZFPxoV6XyA3Z7
 | 
					
						
							|  |  |  | 					bok3B0OuxizzAN2EXdol04VdbMHoWUzjQCzi
 | 
					
						
							|  |  |  | 					0Ri12zLGRPzDepZ7FolgD+JtiBM= )
 | 
					
						
							|  |  |  | 			14400	NSEC	a.dname.example.org. A DNAME RRSIG NSEC
 | 
					
						
							|  |  |  | 			14400	RRSIG	NSEC 5 3 14400 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					U3ZPYMUBJl3wF2SazQv/kBf6ec0CH+7n0Hr9
 | 
					
						
							|  |  |  | 					w6lBKkiXz7P9WQzJDVnTHEZOrbDI6UetFGyC
 | 
					
						
							|  |  |  | 					6qcaADCASZ9Wxc+riyK1Hl4ox+Y/CHJ97WHy
 | 
					
						
							|  |  |  | 					oS2X//vEf6qmbHQXin0WQtFdU/VCRYF40X5v
 | 
					
						
							|  |  |  | 					8VfqOmrr8iKiEqXND8XNVf58mTw= )
 | 
					
						
							|  |  |  | a.dname.example.org.	1800	IN A	127.0.0.1
 | 
					
						
							|  |  |  | 			1800	RRSIG	A 5 4 1800 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					y7RHBWZwli8SJQ4BgTmdXmYS3KGHZ7AitJCx
 | 
					
						
							|  |  |  | 					zXFksMQtNoOfVEQBwnFqjAb8ezcV5u92h1gN
 | 
					
						
							|  |  |  | 					i1EcuxCFiElML1XFT8dK2GnlPAga9w3oIwd5
 | 
					
						
							|  |  |  | 					wzW/YHcnR0P9lF56Sl7RoIt6+jJqOdRfixS6
 | 
					
						
							|  |  |  | 					TDoLoXsNbOxQ+qV3B8pU2Tam204= )
 | 
					
						
							|  |  |  | 			14400	NSEC	ns.example.org. A RRSIG NSEC
 | 
					
						
							|  |  |  | 			14400	RRSIG	NSEC 5 4 14400 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					Tmu27q3+xfONSZZtZLhejBUVtEw+83ZU1AFb
 | 
					
						
							|  |  |  | 					Rsxctjry/x5r2JSxw/sgSAExxX/7tx/okZ8J
 | 
					
						
							|  |  |  | 					oJqtChpsr91Kiw3eEBgINi2lCYIpMJlW4cWz
 | 
					
						
							|  |  |  | 					8bYlHfR81VsKYgy/cRgrq1RRvBoJnw+nwSty
 | 
					
						
							|  |  |  | 					mKPIvUtt67LAvLxJheSCEMZLCKI= )
 | 
					
						
							|  |  |  | ns.example.org.		1800	IN A	127.0.0.1
 | 
					
						
							|  |  |  | 			1800	RRSIG	A 5 3 1800 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					mhi1SGaaAt+ndQEg5uKWKCH0HMzaqh/9dUK3
 | 
					
						
							|  |  |  | 					p2wWMBrLbTZrcWyz10zRnvehicXDCasbBrer
 | 
					
						
							|  |  |  | 					ZpDQnz5AgxYYBURvdPfUzx1XbNuRJRE4l5PN
 | 
					
						
							|  |  |  | 					CEUTlTWcqCXnlSoPKEJE5HRf7v0xg2BrBUfM
 | 
					
						
							|  |  |  | 					4mZnW2bFLwjrRQ5mm/mAmHmTROk= )
 | 
					
						
							|  |  |  | 			14400	NSEC	example.org. A RRSIG NSEC
 | 
					
						
							|  |  |  | 			14400	RRSIG	NSEC 5 3 14400 (
 | 
					
						
							|  |  |  | 					20170702091734 20170602091734 54282 example.org.
 | 
					
						
							|  |  |  | 					loHcdjX+NIWLAkUDfPSy2371wrfUvrBQTfMO
 | 
					
						
							|  |  |  | 					17eO2Y9E/6PE935NF5bjQtZBRRghyxzrFJhm
 | 
					
						
							|  |  |  | 					vY1Ad5ZTb+NLHvdSWbJQJog+eCc7QWp64WzR
 | 
					
						
							|  |  |  | 					RXpMdvaE6ZDwalWldLjC3h8QDywDoFdndoRY
 | 
					
						
							|  |  |  | 					eHOsmTvvtWWqtO6Fa5A8gmHT5HA= )
 | 
					
						
							|  |  |  | `
 |