1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
package test
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
"github.com/miekg/dns"
)
func TestAuto(t *testing.T) {
t.Parallel()
tmpdir, err := ioutil.TempDir(os.TempDir(), "coredns")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
corefile := `org:0 {
auto {
directory ` + tmpdir + ` db\.(.*) {1}
reload 1s
}
}`
i, udp, _, err := CoreDNSServerAndPorts(corefile)
if err != nil {
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
}
defer i.Stop()
m := new(dns.Msg)
m.SetQuestion("www.example.org.", dns.TypeA)
resp, err := dns.Exchange(m, udp)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
if resp.Rcode != dns.RcodeServerFailure {
t.Fatalf("Expected reply to be a SERVFAIL, got %d", resp.Rcode)
}
// Write db.example.org to get example.org.
if err = ioutil.WriteFile(filepath.Join(tmpdir, "db.example.org"), []byte(zoneContent), 0644); err != nil {
t.Fatal(err)
}
time.Sleep(1500 * time.Millisecond) // wait for it to be picked up
resp, err = dns.Exchange(m, udp)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
if len(resp.Answer) != 1 {
t.Fatalf("Expected 1 RR in the answer section, got %d", len(resp.Answer))
}
// Remove db.example.org again.
os.Remove(filepath.Join(tmpdir, "db.example.org"))
time.Sleep(1100 * time.Millisecond) // wait for it to be picked up
resp, err = dns.Exchange(m, udp)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
if resp.Rcode != dns.RcodeServerFailure {
t.Fatalf("Expected reply to be a SERVFAIL, got %d", resp.Rcode)
}
}
func TestAutoNonExistentZone(t *testing.T) {
t.Parallel()
tmpdir, err := ioutil.TempDir(os.TempDir(), "coredns")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
corefile := `.:0 {
auto {
directory ` + tmpdir + ` (.*) {1}
reload 1s
}
errors stdout
}`
i, err := CoreDNSServer(corefile)
if err != nil {
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
}
udp, _ := CoreDNSServerPorts(i, 0)
if udp == "" {
t.Fatal("Could not get UDP listening port")
}
defer i.Stop()
m := new(dns.Msg)
m.SetQuestion("example.org.", dns.TypeA)
resp, err := dns.Exchange(m, udp)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
if resp.Rcode != dns.RcodeServerFailure {
t.Fatalf("Expected reply to be a SERVFAIL, got %d", resp.Rcode)
}
}
func TestAutoAXFR(t *testing.T) {
t.Parallel()
tmpdir, err := ioutil.TempDir(os.TempDir(), "coredns")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
corefile := `org:0 {
auto {
directory ` + tmpdir + ` db\.(.*) {1}
reload 1s
transfer to *
}
}`
i, err := CoreDNSServer(corefile)
if err != nil {
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
}
_, tcp := CoreDNSServerPorts(i, 0)
if tcp == "" {
t.Fatal("Could not get TCP listening port")
}
defer i.Stop()
// Write db.example.org to get example.org.
if err = ioutil.WriteFile(filepath.Join(tmpdir, "db.example.org"), []byte(zoneContent), 0644); err != nil {
t.Fatal(err)
}
time.Sleep(1100 * time.Millisecond) // wait for it to be picked up
tr := new(dns.Transfer)
m := new(dns.Msg)
m.SetAxfr("example.org.")
c, err := tr.In(m, tcp)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
l := 0
for e := range c {
l += len(e.RR)
}
if l != 5 {
t.Fatalf("Expected response with %d RRs, got %d", 5, l)
}
}
const zoneContent = `; testzone
@ IN SOA sns.dns.icann.org. noc.dns.icann.org. 2016082534 7200 3600 1209600 3600
IN NS a.iana-servers.net.
IN NS b.iana-servers.net.
www IN A 127.0.0.1
`
|
