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Port tests from SkyDNS

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This adds *most* of the tests from SkyDNS, things lacking is
the stubzone checking, groups and the trim prefix. These
will be added in subsequent PRs and in separate test files.
This commit is contained in:
Miek Gieben
2016-03-24 17:31:01 +00:00
parent b45208e3e5
commit 4fe39f9e9e
4 changed files with 77 additions and 102 deletions
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3
middleware/etcd/etcd.go
View File

@@ -24,6 +24,9 @@ type Etcd struct {
PathPrefix string PathPrefix string
} }
// Records looks up records in etcd. If exact is true, it will lookup just
// this name. This is used when find matches when completing SRV lookups
// for instance.
func (g Etcd) Records(name string, exact bool) ([]msg.Service, error) { func (g Etcd) Records(name string, exact bool) ([]msg.Service, error) {
path, star := g.PathWithWildcard(name) path, star := g.PathWithWildcard(name)
r, err := g.Get(path, true) r, err := g.Get(path, true)

13
middleware/etcd/lookup.go
View File

@@ -197,15 +197,13 @@ func (e Etcd) SRV(zone string, state middleware.State) (records []dns.RR, extra
break break
} }
// Internal name, we should have some info on them, either v4 or v6 // Internal name, we should have some info on them, either v4 or v6
// Clients expect a complete answer, because we are a recursor in their // Clients expect a complete answer, because we are a recursor in their view.
// view.
state1 := copyState(state, srv.Target, dns.TypeA) state1 := copyState(state, srv.Target, dns.TypeA)
// TODO(both is true here!
addr, e1 := e.A(zone, state1, nil) addr, e1 := e.A(zone, state1, nil)
if e1 == nil { if e1 == nil {
extra = append(extra, addr...) extra = append(extra, addr...)
} }
// e.AAA(zone, state1, nil) as well... // e.AAA(zone, state1, nil) as well...?
case ip.To4() != nil: case ip.To4() != nil:
serv.Host = e.Domain(serv.Key) serv.Host = e.Domain(serv.Key)
srv := serv.NewSRV(state.QName(), weight) srv := serv.NewSRV(state.QName(), weight)
@@ -264,7 +262,6 @@ func (e Etcd) MX(zone string, state middleware.State) (records []dns.RR, extra [
break break
} }
// Internal name // Internal name
// both is true here as well
state1 := copyState(state, mx.Mx, dns.TypeA) state1 := copyState(state, mx.Mx, dns.TypeA)
addr, e1 := e.A(zone, state1, nil) addr, e1 := e.A(zone, state1, nil)
if e1 == nil { if e1 == nil {
@@ -319,11 +316,15 @@ func (e Etcd) TXT(zone string, state middleware.State) (records []dns.RR, err er
} }
// synthesis a SOA Record. // synthesis a SOA Record.
// TODO(miek): finish
func (e Etcd) SOA(zone string, state middleware.State) *dns.SOA { func (e Etcd) SOA(zone string, state middleware.State) *dns.SOA {
header := dns.RR_Header{Name: zone, Rrtype: dns.TypeSOA, Ttl: 300, Class: dns.ClassINET} header := dns.RR_Header{Name: zone, Rrtype: dns.TypeSOA, Ttl: 300, Class: dns.ClassINET}
return &dns.SOA{Hdr: header, Mbox: "hostmaster." + zone, Ns: "ns.dns." + zone} return &dns.SOA{Hdr: header, Mbox: "hostmaster." + zone, Ns: "ns.dns." + zone}
} }
// TODO(miek): NS records, DS and DNSKEY ones...? prolly so that the signing will
// work...
func isDuplicateCNAME(r *dns.CNAME, records []dns.RR) bool { func isDuplicateCNAME(r *dns.CNAME, records []dns.RR) bool {
for _, rec := range records { for _, rec := range records {
if v, ok := rec.(*dns.CNAME); ok { if v, ok := rec.(*dns.CNAME); ok {
@@ -336,7 +337,7 @@ func isDuplicateCNAME(r *dns.CNAME, records []dns.RR) bool {
} }
func copyState(state middleware.State, target string, typ uint16) middleware.State { func copyState(state middleware.State, target string, typ uint16) middleware.State {
state1 := state state1 := middleware.State{W: state.W, Req: state.Req.Copy()}
state1.Req.Question[0] = dns.Question{dns.Fqdn(target), dns.ClassINET, typ} state1.Req.Question[0] = dns.Question{dns.Fqdn(target), dns.ClassINET, typ}
return state1 return state1
} }

161
middleware/etcd/lookup_test.go
View File

@@ -1,4 +1,4 @@
// +build net // +build etcd
package etcd package etcd
@@ -13,30 +13,28 @@ import (
// Note the key is encoded as DNS name, while in "reality" it is a etcd path. // Note the key is encoded as DNS name, while in "reality" it is a etcd path.
var services = []*msg.Service{ var services = []*msg.Service{
{Host: "server1", Port: 8080, Key: "a.server1.dev.region1.skydns.test."}, {Host: "dev.server1", Port: 8080, Key: "a.server1.dev.region1.skydns.test."},
{Host: "10.0.0.1", Port: 8080, Key: "a.server1.prod.region1.skydns.test."}, {Host: "10.0.0.1", Port: 8080, Key: "a.server1.prod.region1.skydns.test."},
{Host: "10.0.0.2", Port: 8080, Key: "b.server1.prod.region1.skydns.test."}, {Host: "10.0.0.2", Port: 8080, Key: "b.server1.prod.region1.skydns.test."},
{Host: "::1", Port: 8080, Key: "b.server6.prod.region1.skydns.test."}, {Host: "::1", Port: 8080, Key: "b.server6.prod.region1.skydns.test."},
// CNAME dedup
{Host: "www.miek.nl", Key: "a.miek.nl.skydns.test."},
{Host: "www.miek.nl", Key: "b.miek.nl.skydns.test."},
// Unresolvable internal name // Unresolvable internal name
{Host: "unresolvable.skydns.test", Key: "cname.prod.region1.skydns.test."}, {Host: "unresolvable.skydns.test", Key: "cname.prod.region1.skydns.test."},
// priority // priority
{Host: "server1", Priority: 333, Port: 8080, Key: "priority.skydns.test."}, {Host: "priority.server1", Priority: 333, Port: 8080, Key: "priority.skydns.test."},
// Subdomain // Subdomain
{Host: "server1", Port: 0, Key: "a.sub.region1.skydns.test."}, {Host: "sub.server1", Port: 0, Key: "a.sub.region1.skydns.test."},
{Host: "server2", Port: 80, Key: "b.sub.region1.skydns.test."}, {Host: "sub.server2", Port: 80, Key: "b.sub.region1.skydns.test."},
{Host: "10.0.0.1", Port: 8080, Key: "c.sub.region1.skydns.test."}, {Host: "10.0.0.1", Port: 8080, Key: "c.sub.region1.skydns.test."},
// Cname loop
{Host: "a.cname.skydns.test", Key: "b.cname.skydns.test."},
{Host: "b.cname.skydns.test", Key: "a.cname.skydns.test."},
} }
var dnsTestCases = []dnsTestCase{ var dnsTestCases = []dnsTestCase{
// SRV Test // SRV Test
{ {
Qname: "a.server1.dev.region1.skydns.test.", Qtype: dns.TypeSRV, Qname: "a.server1.dev.region1.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{newSRV("a.server1.dev.region1.skydns.test. 300 SRV 10 100 8080 server1.")}, Answer: []dns.RR{newSRV("a.server1.dev.region1.skydns.test. 300 SRV 10 100 8080 dev.server1.")},
}, },
// NXDOMAIN Test // NXDOMAIN Test
{ {
@@ -73,109 +71,80 @@ var dnsTestCases = []dnsTestCase{
// Priority Test // Priority Test
{ {
Qname: "priority.skydns.test.", Qtype: dns.TypeSRV, Qname: "priority.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{newSRV("priority.skydns.test. 300 SRV 333 100 8080 server1.")}, Answer: []dns.RR{newSRV("priority.skydns.test. 300 SRV 333 100 8080 priority.server1.")},
}, },
// Subdomain Test // Subdomain Test
{ {
Qname: "sub.region1.skydns.test.", Qtype: dns.TypeSRV, Qname: "sub.region1.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{ Answer: []dns.RR{
newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 0 server1."), newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 0 sub.server1."),
newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 80 server2."), newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 80 sub.server2."),
newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 8080 c.sub.region1.skydns.test."), newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 8080 c.sub.region1.skydns.test."),
}, },
Extra: []dns.RR{newA("c.sub.region1.skydns.test. 300 IN A 10.0.0.1")}, Extra: []dns.RR{newA("c.sub.region1.skydns.test. 300 IN A 10.0.0.1")},
}, },
// Multi SRV with the same target, should be dedupped.
{
Qname: "*.miek.nl.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{
newSRV("*.miek.nl.skydns.test. 300 IN SRV 10 100 0 www.miek.nl."),
},
// TODO(miek): bit stupid to rely on my home DNS setup for this...
Extra: []dns.RR{
// 303 ttl: don't care for the ttl on these RRs.
newA("a.miek.nl. 303 IN A 139.162.196.78"),
newAAAA("a.miek.nl. 303 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
newCNAME("www.miek.nl. 303 IN CNAME a.miek.nl."),
},
},
// CNAME (unresolvable internal name) // CNAME (unresolvable internal name)
{ {
Qname: "cname.prod.region1.skydns.test.", Qtype: dns.TypeA, Qname: "cname.prod.region1.skydns.test.", Qtype: dns.TypeA,
Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")}, Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")},
}, },
/* // Wildcard Test
// CNAME (resolvable external name) {
{ Qname: "*.region1.skydns.test.", Qtype: dns.TypeSRV,
Qname: "external1.cname.skydns.test.", Qtype: dns.TypeA, Answer: []dns.RR{
Answer: []dns.RR{ newSRV("*.region1.skydns.test. 300 IN SRV 10 14 0 sub.server1."),
newA("a.miek.nl. 60 IN A 139.162.196.78"), newSRV("*.region1.skydns.test. 300 IN SRV 10 14 0 unresolvable.skydns.test."),
newCNAME("external1.cname.skydns.test. 60 IN CNAME www.miek.nl."), newSRV("*.region1.skydns.test. 300 IN SRV 10 14 80 sub.server2."),
newCNAME("www.miek.nl. 60 IN CNAME a.miek.nl."), newSRV("*.region1.skydns.test. 300 IN SRV 10 14 8080 a.server1.prod.region1.skydns.test."),
}, newSRV("*.region1.skydns.test. 300 IN SRV 10 14 8080 b.server1.prod.region1.skydns.test."),
newSRV("*.region1.skydns.test. 300 IN SRV 10 14 8080 b.server6.prod.region1.skydns.test."),
newSRV("*.region1.skydns.test. 300 IN SRV 10 14 8080 dev.server1."),
}, },
// CNAME (unresolvable external name) Extra: []dns.RR{
{ newA("a.server1.prod.region1.skydns.test. 300 IN A 10.0.0.1"),
Qname: "external2.cname.skydns.test.", Qtype: dns.TypeA, newA("b.server1.prod.region1.skydns.test. 300 IN A 10.0.0.2"),
Answer: []dns.RR{}, newAAAA("b.server6.prod.region1.skydns.test. 300 IN AAAA ::1"),
Ns: []dns.RR{newSOA("skydns.test. 60 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")},
}, },
// CNAME loop detection },
{ // Wildcard Test
Qname: "3.cname.skydns.test.", Qtype: dns.TypeA, {
Answer: []dns.RR{}, Qname: "prod.*.skydns.test.", Qtype: dns.TypeSRV,
Ns: []dns.RR{newSOA("skydns.test. 60 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")}, Answer: []dns.RR{
newSRV("prod.*.skydns.test. 300 IN SRV 10 25 0 unresolvable.skydns.test."),
newSRV("prod.*.skydns.test. 300 IN SRV 10 25 8080 a.server1.prod.region1.skydns.test."),
newSRV("prod.*.skydns.test. 300 IN SRV 10 25 8080 b.server1.prod.region1.skydns.test."),
newSRV("prod.*.skydns.test. 300 IN SRV 10 25 8080 b.server6.prod.region1.skydns.test."),
}, },
// Wildcard Test Extra: []dns.RR{
{ newA("a.server1.prod.region1.skydns.test. 300 IN A 10.0.0.1"),
Qname: "*.region1.skydns.test.", Qtype: dns.TypeSRV, newA("b.server1.prod.region1.skydns.test. 300 IN A 10.0.0.2"),
Answer: []dns.RR{ newAAAA("b.server6.prod.region1.skydns.test. 300 IN AAAA ::1"),
newSRV("*.region1.skydns.test. 300 SRV 10 33 0 104.server1.dev.region1.skydns.test."),
newSRV("*.region1.skydns.test. 300 SRV 10 33 80 server2"),
newSRV("*.region1.skydns.test. 300 SRV 10 33 8080 server1.")},
Extra: []dns.RR{newA("104.server1.dev.region1.skydns.test. 300 A 10.0.0.1")},
}, },
// Wildcard Test },
{ // Wildcard Test
Qname: "prod.*.skydns.test.", Qtype: dns.TypeSRV, {
Answer: []dns.RR{ Qname: "prod.any.skydns.test.", Qtype: dns.TypeSRV,
newSRV("prod.*.skydns.test. 300 IN SRV 10 50 0 105.server3.prod.region2.skydns.test."), Answer: []dns.RR{
newSRV("prod.*.skydns.test. 300 IN SRV 10 50 80 server2.")}, newSRV("prod.any.skydns.test. 300 IN SRV 10 25 0 unresolvable.skydns.test."),
Extra: []dns.RR{newAAAA("105.server3.prod.region2.skydns.test. 300 IN AAAA 2001::8:8:8:8")}, newSRV("prod.any.skydns.test. 300 IN SRV 10 25 8080 a.server1.prod.region1.skydns.test."),
newSRV("prod.any.skydns.test. 300 IN SRV 10 25 8080 b.server1.prod.region1.skydns.test."),
newSRV("prod.any.skydns.test. 300 IN SRV 10 25 8080 b.server6.prod.region1.skydns.test."),
}, },
// Wildcard Test Extra: []dns.RR{
{ newA("a.server1.prod.region1.skydns.test. 300 IN A 10.0.0.1"),
Qname: "prod.any.skydns.test.", Qtype: dns.TypeSRV, newA("b.server1.prod.region1.skydns.test. 300 IN A 10.0.0.2"),
Answer: []dns.RR{ newAAAA("b.server6.prod.region1.skydns.test. 300 IN AAAA ::1"),
newSRV("prod.any.skydns.test. 300 IN SRV 10 50 0 105.server3.prod.region2.skydns.test."),
newSRV("prod.any.skydns.test. 300 IN SRV 10 50 80 server2.")},
Extra: []dns.RR{newAAAA("105.server3.prod.region2.skydns.test. 300 IN AAAA 2001::8:8:8:8")},
}, },
// NODATA Test },
{ // CNAME loop detection
Qname: "104.server1.dev.region1.skydns.test.", Qtype: dns.TypeTXT, {
Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")}, Qname: "a.cname.skydns.test.", Qtype: dns.TypeA,
}, Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")},
// NODATA Test 2 },
{ // NODATA Test
Qname: "100.server1.dev.region1.skydns.test.", Qtype: dns.TypeA, {
Rcode: dns.RcodeSuccess, Qname: "a.server1.dev.region1.skydns.test.", Qtype: dns.TypeTXT,
Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")}, Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")},
}, },
{
// One has group, the other has not... Include the non-group always.
Qname: "dom2.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{
newA("dom2.skydns.test. IN A 127.0.0.1"),
newA("dom2.skydns.test. IN A 127.0.0.2"),
},
},
{
// The groups differ.
Qname: "dom1.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{
newA("dom1.skydns.test. IN A 127.0.0.1"),
},
},
*/
} }

2
middleware/etcd/setup_test.go
View File

@@ -1,3 +1,5 @@
// +build etcd
package etcd package etcd
// etcd needs to be running on http://127.0.0.1:2379 // etcd needs to be running on http://127.0.0.1:2379