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package dnssec
import (
"testing"
"time"
"github.com/coredns/coredns/plugin/pkg/cache"
"github.com/coredns/coredns/plugin/test"
"github.com/coredns/coredns/request"
"github.com/miekg/dns"
)
func TestZoneSigning(t *testing.T) {
d, rm1, rm2 := newDnssec(t, []string{"miek.nl."})
defer rm1()
defer rm2()
m := testMsg()
state := request.Request{Req: m, Zone: "miek.nl."}
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Answer, 1) {
t.Errorf("Answer section should have 1 RRSIG")
}
if !section(m.Ns, 1) {
t.Errorf("Authority section should have 1 RRSIG")
}
}
func TestZoneSigningDouble(t *testing.T) {
d, rm1, rm2 := newDnssec(t, []string{"miek.nl."})
defer rm1()
defer rm2()
fPriv1, rmPriv1, _ := test.TempFile(".", privKey1)
fPub1, rmPub1, _ := test.TempFile(".", pubKey1)
defer rmPriv1()
defer rmPub1()
key1, err := ParseKeyFile(fPub1, fPriv1)
if err != nil {
t.Fatalf("Failed to parse key: %v\n", err)
}
d.keys = append(d.keys, key1)
m := testMsg()
state := request.Request{Req: m, Zone: "miek.nl."}
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Answer, 2) {
t.Errorf("Answer section should have 1 RRSIG")
}
if !section(m.Ns, 2) {
t.Errorf("Authority section should have 1 RRSIG")
}
}
// TestSigningDifferentZone tests if a key for miek.nl and be used for example.org.
func TestSigningDifferentZone(t *testing.T) {
fPriv, rmPriv, _ := test.TempFile(".", privKey)
fPub, rmPub, _ := test.TempFile(".", pubKey)
defer rmPriv()
defer rmPub()
key, err := ParseKeyFile(fPub, fPriv)
if err != nil {
t.Fatalf("Failed to parse key: %v\n", err)
}
m := testMsgEx()
state := request.Request{Req: m, Zone: "example.org."}
c := cache.New(defaultCap)
d := New([]string{"example.org."}, []*DNSKEY{key}, false, nil, c)
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Answer, 1) {
t.Errorf("Answer section should have 1 RRSIG")
t.Logf("%+v\n", m)
}
if !section(m.Ns, 1) {
t.Errorf("Authority section should have 1 RRSIG")
t.Logf("%+v\n", m)
}
}
func TestSigningCname(t *testing.T) {
d, rm1, rm2 := newDnssec(t, []string{"miek.nl."})
defer rm1()
defer rm2()
m := testMsgCname()
state := request.Request{Req: m, Zone: "miek.nl."}
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Answer, 1) {
t.Errorf("Answer section should have 1 RRSIG")
}
}
func TestSigningDname(t *testing.T) {
d, rm1, rm2 := newDnssec(t, []string{"miek.nl."})
defer rm1()
defer rm2()
m := testMsgDname()
state := request.Request{Req: m, Zone: "miek.nl."}
// We sign *everything* we see, also the synthesized CNAME.
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Answer, 3) {
t.Errorf("Answer section should have 3 RRSIGs")
}
}
func TestSigningEmpty(t *testing.T) {
d, rm1, rm2 := newDnssec(t, []string{"miek.nl."})
defer rm1()
defer rm2()
m := testEmptyMsg()
m.SetQuestion("a.miek.nl.", dns.TypeA)
state := request.Request{Req: m, Zone: "miek.nl."}
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Ns, 2) {
t.Errorf("Authority section should have 2 RRSIGs")
}
}
func TestDelegationSigned(t *testing.T) {
d, rm1, rm2 := newDnssec(t, []string{"miek.nl."})
defer rm1()
defer rm2()
m := testMsgDelegationSigned()
m.SetQuestion("sub.miek.nl.", dns.TypeNS)
state := request.Request{Req: m, Zone: "miek.nl."}
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Ns, 1) {
t.Errorf("Authority section should have 1 RRSIGs")
}
if !section(m.Extra, 0) {
t.Error("Extra section should not have RRSIGs")
}
}
func TestDelegationUnSigned(t *testing.T) {
d, rm1, rm2 := newDnssec(t, []string{"miek.nl."})
defer rm1()
defer rm2()
m := testMsgDelegationUnSigned()
m.SetQuestion("sub.miek.nl.", dns.TypeNS)
state := request.Request{Req: m, Zone: "miek.nl."}
m = d.Sign(state, time.Now().UTC(), server)
if !section(m.Ns, 1) {
t.Errorf("Authority section should have 1 RRSIG")
}
if !section(m.Extra, 0) {
t.Error("Extra section should not have RRSIG")
}
var nsec *dns.NSEC
var rrsig *dns.RRSIG
for _, r := range m.Ns {
if r.Header().Rrtype == dns.TypeNSEC {
nsec = r.(*dns.NSEC)
}
if r.Header().Rrtype == dns.TypeRRSIG {
rrsig = r.(*dns.RRSIG)
}
}
if nsec == nil {
t.Error("Authority section should hold a NSEC record")
}
if rrsig.TypeCovered != dns.TypeNSEC {
t.Errorf("RRSIG should cover type %s, got %s",
dns.TypeToString[dns.TypeNSEC], dns.TypeToString[rrsig.TypeCovered])
}
if !correctNsecForDS(nsec) {
t.Error("NSEC as invalid TypeBitMap for a DS")
}
}
func section(rss []dns.RR, nrSigs int) bool {
i := 0
for _, r := range rss {
if r.Header().Rrtype == dns.TypeRRSIG {
i++
}
}
return nrSigs == i
}
func testMsg() *dns.Msg {
// don't care about the message header
return &dns.Msg{
Answer: []dns.RR{test.MX("miek.nl. 1703 IN MX 1 aspmx.l.google.com.")},
Ns: []dns.RR{test.NS("miek.nl. 1703 IN NS omval.tednet.nl.")},
}
}
func testMsgEx() *dns.Msg {
return &dns.Msg{
Answer: []dns.RR{test.MX("example.org. 1703 IN MX 1 aspmx.l.google.com.")},
Ns: []dns.RR{test.NS("example.org. 1703 IN NS omval.tednet.nl.")},
}
}
func testMsgCname() *dns.Msg {
return &dns.Msg{
Answer: []dns.RR{test.CNAME("www.miek.nl. 1800 IN CNAME a.miek.nl.")},
}
}
func testMsgDname() *dns.Msg {
return &dns.Msg{
Answer: []dns.RR{
test.CNAME("a.dname.miek.nl. 1800 IN CNAME a.test.miek.nl."),
test.A("a.test.miek.nl. 1800 IN A 139.162.196.78"),
test.DNAME("dname.miek.nl. 1800 IN DNAME test.miek.nl."),
},
}
}
func testMsgDelegationSigned() *dns.Msg {
return &dns.Msg{
Ns: []dns.RR{
test.NS("sub.miek.nl. 1800 IN NS ns1.sub.miek.nl."),
test.DS("sub." + dsKey),
},
Extra: []dns.RR{
test.A("ns1.sub.miek.nl. 1800 IN A 192.0.2.1"),
},
}
}
func testMsgDelegationUnSigned() *dns.Msg {
return &dns.Msg{
Ns: []dns.RR{
test.NS("sub.miek.nl. 1800 IN NS ns1.sub.miek.nl."),
},
Extra: []dns.RR{
test.A("ns1.sub.miek.nl. 1800 IN A 192.0.2.1"),
},
}
}
func testEmptyMsg() *dns.Msg {
// don't care about the message header
return &dns.Msg{
Ns: []dns.RR{test.SOA("miek.nl. 1800 IN SOA ns.miek.nl. dnsmaster.miek.nl. 2017100301 200 100 604800 3600")},
}
}
func newDnssec(t *testing.T, zones []string) (Dnssec, func(), func()) {
k, rm1, rm2 := newKey(t)
c := cache.New(defaultCap)
d := New(zones, []*DNSKEY{k}, false, nil, c)
return d, rm1, rm2
}
func newKey(t *testing.T) (*DNSKEY, func(), func()) {
fPriv, rmPriv, _ := test.TempFile(".", privKey)
fPub, rmPub, _ := test.TempFile(".", pubKey)
key, err := ParseKeyFile(fPub, fPriv)
if err != nil {
t.Fatalf("Failed to parse key: %v\n", err)
}
return key, rmPriv, rmPub
}
const (
pubKey = `miek.nl. IN DNSKEY 257 3 13 0J8u0XJ9GNGFEBXuAmLu04taHG4BXPP3gwhetiOUMnGA+x09nqzgF5IY OyjWB7N3rXqQbnOSILhH1hnuyh7mmA==`
privKey = `Private-key-format: v1.3
Algorithm: 13 (ECDSAP256SHA256)
PrivateKey: /4BZk8AFvyW5hL3cOLSVxIp1RTqHSAEloWUxj86p3gs=
Created: 20160423195532
Publish: 20160423195532
Activate: 20160423195532
`
dsKey = `miek.nl. IN DS 18512 13 2 D4E806322598BC97A003EF1ACDFF352EEFF7B42DBB0D41B8224714C36AEF08D9`
pubKey1 = `example.org. IN DNSKEY 257 3 13 tVRWNSGpHZbCi7Pr7OmbADVUO3MxJ0Lb8Lk3o/HBHqCxf5K/J50lFqRa 98lkdAIiFOVRy8LyMvjwmxZKwB5MNw==`
privKey1 = `Private-key-format: v1.3
Algorithm: 13 (ECDSAP256SHA256)
PrivateKey: i8j4OfDGT8CQt24SDwLz2hg9yx4qKOEOh1LvbAuSp1c=
Created: 20160423211746
Publish: 20160423211746
Activate: 20160423211746
`
)
|
