forked from miekg/dns
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathparse_test.go
1527 lines (1429 loc) · 52.7 KB
/
parse_test.go
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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
package dns
import (
"bytes"
"crypto/rsa"
"encoding/hex"
"fmt"
"math/rand"
"net"
"reflect"
"strconv"
"strings"
"testing"
"testing/quick"
"time"
)
func TestDotInName(t *testing.T) {
buf := make([]byte, 20)
PackDomainName("aa\\.bb.nl.", buf, 0, nil, false)
// index 3 must be a real dot
if buf[3] != '.' {
t.Error("dot should be a real dot")
}
if buf[6] != 2 {
t.Error("this must have the value 2")
}
dom, _, _ := UnpackDomainName(buf, 0)
// printing it should yield the backspace again
if dom != "aa\\.bb.nl." {
t.Error("dot should have been escaped: ", dom)
}
}
func TestDotLastInLabel(t *testing.T) {
sample := "aa\\..au."
buf := make([]byte, 20)
_, err := PackDomainName(sample, buf, 0, nil, false)
if err != nil {
t.Fatalf("unexpected error packing domain: %v", err)
}
dom, _, _ := UnpackDomainName(buf, 0)
if dom != sample {
t.Fatalf("unpacked domain `%s' doesn't match packed domain", dom)
}
}
func TestTooLongDomainName(t *testing.T) {
l := "aaabbbcccdddeeefffggghhhiiijjjkkklllmmmnnnooopppqqqrrrsssttt."
dom := l + l + l + l + l + l + l
_, err := NewRR(dom + " IN A 127.0.0.1")
if err == nil {
t.Error("should be too long")
} else {
t.Logf("error is %v", err)
}
_, err = NewRR("..com. IN A 127.0.0.1")
if err == nil {
t.Error("should fail")
} else {
t.Logf("error is %v", err)
}
}
func TestDomainName(t *testing.T) {
tests := []string{"r\\.gieben.miek.nl.", "www\\.www.miek.nl.",
"www.*.miek.nl.", "www.*.miek.nl.",
}
dbuff := make([]byte, 40)
for _, ts := range tests {
if _, err := PackDomainName(ts, dbuff, 0, nil, false); err != nil {
t.Error("not a valid domain name")
continue
}
n, _, err := UnpackDomainName(dbuff, 0)
if err != nil {
t.Error("failed to unpack packed domain name")
continue
}
if ts != n {
t.Errorf("must be equal: in: %s, out: %s", ts, n)
}
}
}
func TestDomainNameAndTXTEscapes(t *testing.T) {
tests := []byte{'.', '(', ')', ';', ' ', '@', '"', '\\', '\t', '\r', '\n', 0, 255}
for _, b := range tests {
rrbytes := []byte{
1, b, 0, // owner
byte(TypeTXT >> 8), byte(TypeTXT),
byte(ClassINET >> 8), byte(ClassINET),
0, 0, 0, 1, // TTL
0, 2, 1, b, // Data
}
rr1, _, err := UnpackRR(rrbytes, 0)
if err != nil {
panic(err)
}
s := rr1.String()
rr2, err := NewRR(s)
if err != nil {
t.Errorf("Error parsing unpacked RR's string: %v", err)
t.Errorf(" Bytes: %v", rrbytes)
t.Errorf("String: %v", s)
}
repacked := make([]byte, len(rrbytes))
if _, err := PackRR(rr2, repacked, 0, nil, false); err != nil {
t.Errorf("error packing parsed RR: %v", err)
t.Errorf(" original Bytes: %v", rrbytes)
t.Errorf("unpacked Struct: %v", rr1)
t.Errorf(" parsed Struct: %v", rr2)
}
if !bytes.Equal(repacked, rrbytes) {
t.Error("packed bytes don't match original bytes")
t.Errorf(" original bytes: %v", rrbytes)
t.Errorf(" packed bytes: %v", repacked)
t.Errorf("unpacked struct: %v", rr1)
t.Errorf(" parsed struct: %v", rr2)
}
}
}
func TestTXTEscapeParsing(t *testing.T) {
test := [][]string{
{`";"`, `";"`},
{`\;`, `";"`},
{`"\t"`, `"\t"`},
{`"\r"`, `"\r"`},
{`"\ "`, `" "`},
{`"\;"`, `";"`},
{`"\;\""`, `";\""`},
{`"\(a\)"`, `"(a)"`},
{`"\(a)"`, `"(a)"`},
{`"(a\)"`, `"(a)"`},
{`"(a)"`, `"(a)"`},
{`"\048"`, `"0"`},
{`"\` + "\n" + `"`, `"\n"`},
{`"\` + "\r" + `"`, `"\r"`},
{`"\` + "\x11" + `"`, `"\017"`},
{`"\'"`, `"'"`},
}
for _, s := range test {
rr, err := NewRR(fmt.Sprintf("example.com. IN TXT %v", s[0]))
if err != nil {
t.Errorf("Could not parse %v TXT: %s", s[0], err)
continue
}
txt := sprintTxt(rr.(*TXT).Txt)
if txt != s[1] {
t.Errorf("Mismatch after parsing `%v` TXT record: `%v` != `%v`", s[0], txt, s[1])
}
}
}
func GenerateDomain(r *rand.Rand, size int) []byte {
dnLen := size % 70 // artificially limit size so there's less to intrepret if a failure occurs
var dn []byte
done := false
for i := 0; i < dnLen && !done; {
max := dnLen - i
if max > 63 {
max = 63
}
lLen := max
if lLen != 0 {
lLen = int(r.Int31()) % max
}
done = lLen == 0
if done {
continue
}
l := make([]byte, lLen+1)
l[0] = byte(lLen)
for j := 0; j < lLen; j++ {
l[j+1] = byte(rand.Int31())
}
dn = append(dn, l...)
i += 1 + lLen
}
return append(dn, 0)
}
func TestDomainQuick(t *testing.T) {
r := rand.New(rand.NewSource(0))
f := func(l int) bool {
db := GenerateDomain(r, l)
ds, _, err := UnpackDomainName(db, 0)
if err != nil {
panic(err)
}
buf := make([]byte, 255)
off, err := PackDomainName(ds, buf, 0, nil, false)
if err != nil {
t.Errorf("error packing domain: %v", err)
t.Errorf(" bytes: %v", db)
t.Errorf("string: %v", ds)
return false
}
if !bytes.Equal(db, buf[:off]) {
t.Errorf("repacked domain doesn't match original:")
t.Errorf("src bytes: %v", db)
t.Errorf(" string: %v", ds)
t.Errorf("out bytes: %v", buf[:off])
return false
}
return true
}
if err := quick.Check(f, nil); err != nil {
t.Error(err)
}
}
func GenerateTXT(r *rand.Rand, size int) []byte {
rdLen := size % 300 // artificially limit size so there's less to intrepret if a failure occurs
var rd []byte
for i := 0; i < rdLen; {
max := rdLen - 1
if max > 255 {
max = 255
}
sLen := max
if max != 0 {
sLen = int(r.Int31()) % max
}
s := make([]byte, sLen+1)
s[0] = byte(sLen)
for j := 0; j < sLen; j++ {
s[j+1] = byte(rand.Int31())
}
rd = append(rd, s...)
i += 1 + sLen
}
return rd
}
// Ok, 2 things. 1) this test breaks with the new functionality of splitting up larger txt
// chunks into 255 byte pieces. 2) I don't like the random nature of this thing, because I can't
// place the quotes where they need to be.
// So either add some code the places the quotes in just the right spots, make this non random
// or do something else.
// Disabled for now. (miek)
func testTXTRRQuick(t *testing.T) {
s := rand.NewSource(0)
r := rand.New(s)
typeAndClass := []byte{
byte(TypeTXT >> 8), byte(TypeTXT),
byte(ClassINET >> 8), byte(ClassINET),
0, 0, 0, 1, // TTL
}
f := func(l int) bool {
owner := GenerateDomain(r, l)
rdata := GenerateTXT(r, l)
rrbytes := make([]byte, 0, len(owner)+2+2+4+2+len(rdata))
rrbytes = append(rrbytes, owner...)
rrbytes = append(rrbytes, typeAndClass...)
rrbytes = append(rrbytes, byte(len(rdata)>>8))
rrbytes = append(rrbytes, byte(len(rdata)))
rrbytes = append(rrbytes, rdata...)
rr, _, err := UnpackRR(rrbytes, 0)
if err != nil {
panic(err)
}
buf := make([]byte, len(rrbytes)*3)
off, err := PackRR(rr, buf, 0, nil, false)
if err != nil {
t.Errorf("pack Error: %v\nRR: %v", err, rr)
return false
}
buf = buf[:off]
if !bytes.Equal(buf, rrbytes) {
t.Errorf("packed bytes don't match original bytes")
t.Errorf("src bytes: %v", rrbytes)
t.Errorf(" struct: %v", rr)
t.Errorf("out bytes: %v", buf)
return false
}
if len(rdata) == 0 {
// string'ing won't produce any data to parse
return true
}
rrString := rr.String()
rr2, err := NewRR(rrString)
if err != nil {
t.Errorf("error parsing own output: %v", err)
t.Errorf("struct: %v", rr)
t.Errorf("string: %v", rrString)
return false
}
if rr2.String() != rrString {
t.Errorf("parsed rr.String() doesn't match original string")
t.Errorf("original: %v", rrString)
t.Errorf(" parsed: %v", rr2.String())
return false
}
buf = make([]byte, len(rrbytes)*3)
off, err = PackRR(rr2, buf, 0, nil, false)
if err != nil {
t.Errorf("error packing parsed rr: %v", err)
t.Errorf("unpacked Struct: %v", rr)
t.Errorf(" string: %v", rrString)
t.Errorf(" parsed Struct: %v", rr2)
return false
}
buf = buf[:off]
if !bytes.Equal(buf, rrbytes) {
t.Errorf("parsed packed bytes don't match original bytes")
t.Errorf(" source bytes: %v", rrbytes)
t.Errorf("unpacked struct: %v", rr)
t.Errorf(" string: %v", rrString)
t.Errorf(" parsed struct: %v", rr2)
t.Errorf(" repacked bytes: %v", buf)
return false
}
return true
}
c := &quick.Config{MaxCountScale: 10}
if err := quick.Check(f, c); err != nil {
t.Error(err)
}
}
func TestParseDirectiveMisc(t *testing.T) {
tests := map[string]string{
"$ORIGIN miek.nl.\na IN NS b": "a.miek.nl.\t3600\tIN\tNS\tb.miek.nl.",
"$TTL 2H\nmiek.nl. IN NS b.": "miek.nl.\t7200\tIN\tNS\tb.",
"miek.nl. 1D IN NS b.": "miek.nl.\t86400\tIN\tNS\tb.",
`name. IN SOA a6.nstld.com. hostmaster.nic.name. (
203362132 ; serial
5m ; refresh (5 minutes)
5m ; retry (5 minutes)
2w ; expire (2 weeks)
300 ; minimum (5 minutes)
)`: "name.\t3600\tIN\tSOA\ta6.nstld.com. hostmaster.nic.name. 203362132 300 300 1209600 300",
". 3600000 IN NS ONE.MY-ROOTS.NET.": ".\t3600000\tIN\tNS\tONE.MY-ROOTS.NET.",
"ONE.MY-ROOTS.NET. 3600000 IN A 192.168.1.1": "ONE.MY-ROOTS.NET.\t3600000\tIN\tA\t192.168.1.1",
}
for i, o := range tests {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestNSEC(t *testing.T) {
nsectests := map[string]string{
"nl. IN NSEC3PARAM 1 0 5 30923C44C6CBBB8F": "nl.\t3600\tIN\tNSEC3PARAM\t1 0 5 30923C44C6CBBB8F",
"p2209hipbpnm681knjnu0m1febshlv4e.nl. IN NSEC3 1 1 5 30923C44C6CBBB8F P90DG1KE8QEAN0B01613LHQDG0SOJ0TA NS SOA TXT RRSIG DNSKEY NSEC3PARAM": "p2209hipbpnm681knjnu0m1febshlv4e.nl.\t3600\tIN\tNSEC3\t1 1 5 30923C44C6CBBB8F P90DG1KE8QEAN0B01613LHQDG0SOJ0TA NS SOA TXT RRSIG DNSKEY NSEC3PARAM",
"localhost.dnssex.nl. IN NSEC www.dnssex.nl. A RRSIG NSEC": "localhost.dnssex.nl.\t3600\tIN\tNSEC\twww.dnssex.nl. A RRSIG NSEC",
"localhost.dnssex.nl. IN NSEC www.dnssex.nl. A RRSIG NSEC TYPE65534": "localhost.dnssex.nl.\t3600\tIN\tNSEC\twww.dnssex.nl. A RRSIG NSEC TYPE65534",
"localhost.dnssex.nl. IN NSEC www.dnssex.nl. A RRSIG NSec Type65534": "localhost.dnssex.nl.\t3600\tIN\tNSEC\twww.dnssex.nl. A RRSIG NSEC TYPE65534",
}
for i, o := range nsectests {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestParseLOC(t *testing.T) {
lt := map[string]string{
"SW1A2AA.find.me.uk. LOC 51 30 12.748 N 00 07 39.611 W 0.00m 0.00m 0.00m 0.00m": "SW1A2AA.find.me.uk.\t3600\tIN\tLOC\t51 30 12.748 N 00 07 39.611 W 0m 0.00m 0.00m 0.00m",
"SW1A2AA.find.me.uk. LOC 51 0 0.0 N 00 07 39.611 W 0.00m 0.00m 0.00m 0.00m": "SW1A2AA.find.me.uk.\t3600\tIN\tLOC\t51 00 0.000 N 00 07 39.611 W 0m 0.00m 0.00m 0.00m",
}
for i, o := range lt {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestParseDS(t *testing.T) {
dt := map[string]string{
"example.net. 3600 IN DS 40692 12 3 22261A8B0E0D799183E35E24E2AD6BB58533CBA7E3B14D659E9CA09B 2071398F": "example.net.\t3600\tIN\tDS\t40692 12 3 22261A8B0E0D799183E35E24E2AD6BB58533CBA7E3B14D659E9CA09B2071398F",
}
for i, o := range dt {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestQuotes(t *testing.T) {
tests := map[string]string{
`t.example.com. IN TXT "a bc"`: "t.example.com.\t3600\tIN\tTXT\t\"a bc\"",
`t.example.com. IN TXT "a
bc"`: "t.example.com.\t3600\tIN\tTXT\t\"a\\n bc\"",
`t.example.com. IN TXT ""`: "t.example.com.\t3600\tIN\tTXT\t\"\"",
`t.example.com. IN TXT "a"`: "t.example.com.\t3600\tIN\tTXT\t\"a\"",
`t.example.com. IN TXT "aa"`: "t.example.com.\t3600\tIN\tTXT\t\"aa\"",
`t.example.com. IN TXT "aaa" ;`: "t.example.com.\t3600\tIN\tTXT\t\"aaa\"",
`t.example.com. IN TXT "abc" "DEF"`: "t.example.com.\t3600\tIN\tTXT\t\"abc\" \"DEF\"",
`t.example.com. IN TXT "abc" ( "DEF" )`: "t.example.com.\t3600\tIN\tTXT\t\"abc\" \"DEF\"",
`t.example.com. IN TXT aaa ;`: "t.example.com.\t3600\tIN\tTXT\t\"aaa \"",
`t.example.com. IN TXT aaa aaa;`: "t.example.com.\t3600\tIN\tTXT\t\"aaa aaa\"",
`t.example.com. IN TXT aaa aaa`: "t.example.com.\t3600\tIN\tTXT\t\"aaa aaa\"",
`t.example.com. IN TXT aaa`: "t.example.com.\t3600\tIN\tTXT\t\"aaa\"",
"cid.urn.arpa. NAPTR 100 50 \"s\" \"z3950+I2L+I2C\" \"\" _z3950._tcp.gatech.edu.": "cid.urn.arpa.\t3600\tIN\tNAPTR\t100 50 \"s\" \"z3950+I2L+I2C\" \"\" _z3950._tcp.gatech.edu.",
"cid.urn.arpa. NAPTR 100 50 \"s\" \"rcds+I2C\" \"\" _rcds._udp.gatech.edu.": "cid.urn.arpa.\t3600\tIN\tNAPTR\t100 50 \"s\" \"rcds+I2C\" \"\" _rcds._udp.gatech.edu.",
"cid.urn.arpa. NAPTR 100 50 \"s\" \"http+I2L+I2C+I2R\" \"\" _http._tcp.gatech.edu.": "cid.urn.arpa.\t3600\tIN\tNAPTR\t100 50 \"s\" \"http+I2L+I2C+I2R\" \"\" _http._tcp.gatech.edu.",
"cid.urn.arpa. NAPTR 100 10 \"\" \"\" \"/urn:cid:.+@([^\\.]+\\.)(.*)$/\\2/i\" .": "cid.urn.arpa.\t3600\tIN\tNAPTR\t100 10 \"\" \"\" \"/urn:cid:.+@([^\\.]+\\.)(.*)$/\\2/i\" .",
}
for i, o := range tests {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is\n`%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestParseClass(t *testing.T) {
tests := map[string]string{
"t.example.com. IN A 127.0.0.1": "t.example.com. 3600 IN A 127.0.0.1",
"t.example.com. CS A 127.0.0.1": "t.example.com. 3600 CS A 127.0.0.1",
"t.example.com. CH A 127.0.0.1": "t.example.com. 3600 CH A 127.0.0.1",
// ClassANY can not occur in zone files
// "t.example.com. ANY A 127.0.0.1": "t.example.com. 3600 ANY A 127.0.0.1",
"t.example.com. NONE A 127.0.0.1": "t.example.com. 3600 NONE A 127.0.0.1",
}
for i, o := range tests {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is\n`%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestBrace(t *testing.T) {
tests := map[string]string{
"(miek.nl.) 3600 IN A 127.0.1.1": "miek.nl.\t3600\tIN\tA\t127.0.1.1",
"miek.nl. (3600) IN MX (10) elektron.atoom.net.": "miek.nl.\t3600\tIN\tMX\t10 elektron.atoom.net.",
`miek.nl. IN (
3600 A 127.0.0.1)`: "miek.nl.\t3600\tIN\tA\t127.0.0.1",
"(miek.nl.) (A) (127.0.2.1)": "miek.nl.\t3600\tIN\tA\t127.0.2.1",
"miek.nl A 127.0.3.1": "miek.nl.\t3600\tIN\tA\t127.0.3.1",
"_ssh._tcp.local. 60 IN (PTR) stora._ssh._tcp.local.": "_ssh._tcp.local.\t60\tIN\tPTR\tstora._ssh._tcp.local.",
"miek.nl. NS ns.miek.nl": "miek.nl.\t3600\tIN\tNS\tns.miek.nl.",
`(miek.nl.) (
(IN)
(AAAA)
(::1) )`: "miek.nl.\t3600\tIN\tAAAA\t::1",
`(miek.nl.) (
(IN)
(AAAA)
(::1))`: "miek.nl.\t3600\tIN\tAAAA\t::1",
"miek.nl. IN AAAA ::2": "miek.nl.\t3600\tIN\tAAAA\t::2",
`((m)(i)ek.(n)l.) (SOA) (soa.) (soa.) (
2009032802 ; serial
21600 ; refresh (6 hours)
7(2)00 ; retry (2 hours)
604()800 ; expire (1 week)
3600 ; minimum (1 hour)
)`: "miek.nl.\t3600\tIN\tSOA\tsoa. soa. 2009032802 21600 7200 604800 3600",
"miek\\.nl. IN A 127.0.0.10": "miek\\.nl.\t3600\tIN\tA\t127.0.0.10",
"miek.nl. IN A 127.0.0.11": "miek.nl.\t3600\tIN\tA\t127.0.0.11",
"miek.nl. A 127.0.0.12": "miek.nl.\t3600\tIN\tA\t127.0.0.12",
`miek.nl. 86400 IN SOA elektron.atoom.net. miekg.atoom.net. (
2009032802 ; serial
21600 ; refresh (6 hours)
7200 ; retry (2 hours)
604800 ; expire (1 week)
3600 ; minimum (1 hour)
)`: "miek.nl.\t86400\tIN\tSOA\telektron.atoom.net. miekg.atoom.net. 2009032802 21600 7200 604800 3600",
}
for i, o := range tests {
rr, err := NewRR(i)
if err != nil {
t.Errorf("failed to parse RR: %v\n\t%s", err, i)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestParseFailure(t *testing.T) {
tests := []string{"miek.nl. IN A 327.0.0.1",
"miek.nl. IN AAAA ::x",
"miek.nl. IN MX a0 miek.nl.",
"miek.nl aap IN MX mx.miek.nl.",
"miek.nl 200 IN mxx 10 mx.miek.nl.",
"miek.nl. inn MX 10 mx.miek.nl.",
// "miek.nl. IN CNAME ", // actually valid nowadays, zero size rdata
"miek.nl. IN CNAME ..",
"miek.nl. PA MX 10 miek.nl.",
"miek.nl. ) IN MX 10 miek.nl.",
}
for _, s := range tests {
_, err := NewRR(s)
if err == nil {
t.Errorf("should have triggered an error: \"%s\"", s)
}
}
}
func TestZoneParsing(t *testing.T) {
// parse_test.db
db := `
a.example.com. IN A 127.0.0.1
8db7._openpgpkey.example.com. IN OPENPGPKEY mQCNAzIG
$ORIGIN a.example.com.
test IN A 127.0.0.1
IN SSHFP 1 2 (
BC6533CDC95A79078A39A56EA7635984ED655318ADA9
B6159E30723665DA95BB )
$ORIGIN b.example.com.
test IN CNAME test.a.example.com.
`
start := time.Now().UnixNano()
to := ParseZone(strings.NewReader(db), "", "parse_test.db")
var i int
for x := range to {
i++
if x.Error != nil {
t.Error(x.Error)
continue
}
t.Log(x.RR)
}
delta := time.Now().UnixNano() - start
t.Logf("%d RRs parsed in %.2f s (%.2f RR/s)", i, float32(delta)/1e9, float32(i)/(float32(delta)/1e9))
}
func ExampleZone() {
zone := `$ORIGIN .
$TTL 3600 ; 1 hour
name IN SOA a6.nstld.com. hostmaster.nic.name. (
203362132 ; serial
300 ; refresh (5 minutes)
300 ; retry (5 minutes)
1209600 ; expire (2 weeks)
300 ; minimum (5 minutes)
)
$TTL 10800 ; 3 hours
name. 10800 IN NS name.
IN NS g6.nstld.com.
7200 NS h6.nstld.com.
3600 IN NS j6.nstld.com.
IN 3600 NS k6.nstld.com.
NS l6.nstld.com.
NS a6.nstld.com.
NS c6.nstld.com.
NS d6.nstld.com.
NS f6.nstld.com.
NS m6.nstld.com.
(
NS m7.nstld.com.
)
$ORIGIN name.
0-0onlus NS ns7.ehiweb.it.
NS ns8.ehiweb.it.
0-g MX 10 mx01.nic
MX 10 mx02.nic
MX 10 mx03.nic
MX 10 mx04.nic
$ORIGIN 0-g.name
moutamassey NS ns01.yahoodomains.jp.
NS ns02.yahoodomains.jp.
`
to := ParseZone(strings.NewReader(zone), "", "testzone")
for x := range to {
fmt.Println(x.RR)
}
// Output:
// name. 3600 IN SOA a6.nstld.com. hostmaster.nic.name. 203362132 300 300 1209600 300
// name. 10800 IN NS name.
// name. 10800 IN NS g6.nstld.com.
// name. 7200 IN NS h6.nstld.com.
// name. 3600 IN NS j6.nstld.com.
// name. 3600 IN NS k6.nstld.com.
// name. 10800 IN NS l6.nstld.com.
// name. 10800 IN NS a6.nstld.com.
// name. 10800 IN NS c6.nstld.com.
// name. 10800 IN NS d6.nstld.com.
// name. 10800 IN NS f6.nstld.com.
// name. 10800 IN NS m6.nstld.com.
// name. 10800 IN NS m7.nstld.com.
// 0-0onlus.name. 10800 IN NS ns7.ehiweb.it.
// 0-0onlus.name. 10800 IN NS ns8.ehiweb.it.
// 0-g.name. 10800 IN MX 10 mx01.nic.name.
// 0-g.name. 10800 IN MX 10 mx02.nic.name.
// 0-g.name. 10800 IN MX 10 mx03.nic.name.
// 0-g.name. 10800 IN MX 10 mx04.nic.name.
// moutamassey.0-g.name.name. 10800 IN NS ns01.yahoodomains.jp.
// moutamassey.0-g.name.name. 10800 IN NS ns02.yahoodomains.jp.
}
func ExampleHIP() {
h := `www.example.com IN HIP ( 2 200100107B1A74DF365639CC39F1D578
AwEAAbdxyhNuSutc5EMzxTs9LBPCIkOFH8cIvM4p
9+LrV4e19WzK00+CI6zBCQTdtWsuxKbWIy87UOoJTwkUs7lBu+Upr1gsNrut79ryra+bSRGQ
b1slImA8YVJyuIDsj7kwzG7jnERNqnWxZ48AWkskmdHaVDP4BcelrTI3rMXdXF5D
rvs.example.com. )`
if hip, err := NewRR(h); err == nil {
fmt.Println(hip.String())
}
// Output:
// www.example.com. 3600 IN HIP 2 200100107B1A74DF365639CC39F1D578 AwEAAbdxyhNuSutc5EMzxTs9LBPCIkOFH8cIvM4p9+LrV4e19WzK00+CI6zBCQTdtWsuxKbWIy87UOoJTwkUs7lBu+Upr1gsNrut79ryra+bSRGQb1slImA8YVJyuIDsj7kwzG7jnERNqnWxZ48AWkskmdHaVDP4BcelrTI3rMXdXF5D rvs.example.com.
}
func TestHIP(t *testing.T) {
h := `www.example.com. IN HIP ( 2 200100107B1A74DF365639CC39F1D578
AwEAAbdxyhNuSutc5EMzxTs9LBPCIkOFH8cIvM4p
9+LrV4e19WzK00+CI6zBCQTdtWsuxKbWIy87UOoJTwkUs7lBu+Upr1gsNrut79ryra+bSRGQ
b1slImA8YVJyuIDsj7kwzG7jnERNqnWxZ48AWkskmdHaVDP4BcelrTI3rMXdXF5D
rvs1.example.com.
rvs2.example.com. )`
rr, err := NewRR(h)
if err != nil {
t.Fatalf("failed to parse RR: %v", err)
}
t.Logf("RR: %s", rr)
msg := new(Msg)
msg.Answer = []RR{rr, rr}
bytes, err := msg.Pack()
if err != nil {
t.Fatalf("failed to pack msg: %v", err)
}
if err := msg.Unpack(bytes); err != nil {
t.Fatalf("failed to unpack msg: %v", err)
}
if len(msg.Answer) != 2 {
t.Fatalf("2 answers expected: %v", msg)
}
for i, rr := range msg.Answer {
rr := rr.(*HIP)
t.Logf("RR: %s", rr)
if l := len(rr.RendezvousServers); l != 2 {
t.Fatalf("2 servers expected, only %d in record %d:\n%v", l, i, msg)
}
for j, s := range []string{"rvs1.example.com.", "rvs2.example.com."} {
if rr.RendezvousServers[j] != s {
t.Fatalf("expected server %d of record %d to be %s:\n%v", j, i, s, msg)
}
}
}
}
func ExampleSOA() {
s := "example.com. 1000 SOA master.example.com. admin.example.com. 1 4294967294 4294967293 4294967295 100"
if soa, err := NewRR(s); err == nil {
fmt.Println(soa.String())
}
// Output:
// example.com. 1000 IN SOA master.example.com. admin.example.com. 1 4294967294 4294967293 4294967295 100
}
func TestLineNumberError(t *testing.T) {
s := "example.com. 1000 SOA master.example.com. admin.example.com. monkey 4294967294 4294967293 4294967295 100"
if _, err := NewRR(s); err != nil {
if err.Error() != "dns: bad SOA zone parameter: \"monkey\" at line: 1:68" {
t.Error("not expecting this error: ", err)
}
}
}
// Test with no known RR on the line
func TestLineNumberError2(t *testing.T) {
tests := map[string]string{
"example.com. 1000 SO master.example.com. admin.example.com. 1 4294967294 4294967293 4294967295 100": "dns: expecting RR type or class, not this...: \"SO\" at line: 1:21",
"example.com 1000 IN TALINK a.example.com. b..example.com.": "dns: bad TALINK NextName: \"b..example.com.\" at line: 1:57",
"example.com 1000 IN TALINK ( a.example.com. b..example.com. )": "dns: bad TALINK NextName: \"b..example.com.\" at line: 1:60",
`example.com 1000 IN TALINK ( a.example.com.
bb..example.com. )`: "dns: bad TALINK NextName: \"bb..example.com.\" at line: 2:18",
// This is a bug, it should report an error on line 1, but the new is already processed.
`example.com 1000 IN TALINK ( a.example.com. b...example.com.
)`: "dns: bad TALINK NextName: \"b...example.com.\" at line: 2:1"}
for in, errStr := range tests {
_, err := NewRR(in)
if err == nil {
t.Error("err is nil")
} else {
if err.Error() != errStr {
t.Errorf("%s: error should be %s is %v", in, errStr, err)
}
}
}
}
// Test if the calculations are correct
func TestRfc1982(t *testing.T) {
// If the current time and the timestamp are more than 68 years apart
// it means the date has wrapped. 0 is 1970
// fall in the current 68 year span
strtests := []string{"20120525134203", "19700101000000", "20380119031408"}
for _, v := range strtests {
if x, _ := StringToTime(v); v != TimeToString(x) {
t.Errorf("1982 arithmetic string failure %s (%s:%d)", v, TimeToString(x), x)
}
}
inttests := map[uint32]string{0: "19700101000000",
1 << 31: "20380119031408",
1<<32 - 1: "21060207062815",
}
for i, v := range inttests {
if TimeToString(i) != v {
t.Errorf("1982 arithmetic int failure %d:%s (%s)", i, v, TimeToString(i))
}
}
// Future tests, these dates get parsed to a date within the current 136 year span
future := map[string]string{"22680119031408": "20631123173144",
"19010101121212": "20370206184028",
"19210101121212": "20570206184028",
"19500101121212": "20860206184028",
"19700101000000": "19700101000000",
"19690101000000": "21050207062816",
"29210101121212": "21040522212236",
}
for from, to := range future {
x, _ := StringToTime(from)
y := TimeToString(x)
if y != to {
t.Errorf("1982 arithmetic future failure %s:%s (%s)", from, to, y)
}
}
}
func TestEmpty(t *testing.T) {
for _ = range ParseZone(strings.NewReader(""), "", "") {
t.Errorf("should be empty")
}
}
func TestLowercaseTokens(t *testing.T) {
var testrecords = []string{
"example.org. 300 IN a 1.2.3.4",
"example.org. 300 in A 1.2.3.4",
"example.org. 300 in a 1.2.3.4",
"example.org. 300 a 1.2.3.4",
"example.org. 300 A 1.2.3.4",
"example.org. IN a 1.2.3.4",
"example.org. in A 1.2.3.4",
"example.org. in a 1.2.3.4",
"example.org. a 1.2.3.4",
"example.org. A 1.2.3.4",
"example.org. a 1.2.3.4",
"$ORIGIN example.org.\n a 1.2.3.4",
"$Origin example.org.\n a 1.2.3.4",
"$origin example.org.\n a 1.2.3.4",
"example.org. Class1 Type1 1.2.3.4",
}
for _, testrr := range testrecords {
_, err := NewRR(testrr)
if err != nil {
t.Errorf("failed to parse %#v, got %v", testrr, err)
}
}
}
func ExampleGenerate() {
// From the manual: http://www.bind9.net/manual/bind/9.3.2/Bv9ARM.ch06.html#id2566761
zone := "$GENERATE 1-2 0 NS SERVER$.EXAMPLE.\n$GENERATE 1-8 $ CNAME $.0"
to := ParseZone(strings.NewReader(zone), "0.0.192.IN-ADDR.ARPA.", "")
for x := range to {
if x.Error == nil {
fmt.Println(x.RR.String())
}
}
// Output:
// 0.0.0.192.IN-ADDR.ARPA. 3600 IN NS SERVER1.EXAMPLE.
// 0.0.0.192.IN-ADDR.ARPA. 3600 IN NS SERVER2.EXAMPLE.
// 1.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 1.0.0.0.192.IN-ADDR.ARPA.
// 2.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 2.0.0.0.192.IN-ADDR.ARPA.
// 3.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 3.0.0.0.192.IN-ADDR.ARPA.
// 4.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 4.0.0.0.192.IN-ADDR.ARPA.
// 5.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 5.0.0.0.192.IN-ADDR.ARPA.
// 6.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 6.0.0.0.192.IN-ADDR.ARPA.
// 7.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 7.0.0.0.192.IN-ADDR.ARPA.
// 8.0.0.192.IN-ADDR.ARPA. 3600 IN CNAME 8.0.0.0.192.IN-ADDR.ARPA.
}
func TestSRVPacking(t *testing.T) {
msg := Msg{}
things := []string{"1.2.3.4:8484",
"45.45.45.45:8484",
"84.84.84.84:8484",
}
for i, n := range things {
h, p, err := net.SplitHostPort(n)
if err != nil {
continue
}
port := 8484
tmp, err := strconv.Atoi(p)
if err == nil {
port = tmp
}
rr := &SRV{
Hdr: RR_Header{Name: "somename.",
Rrtype: TypeSRV,
Class: ClassINET,
Ttl: 5},
Priority: uint16(i),
Weight: 5,
Port: uint16(port),
Target: h + ".",
}
msg.Answer = append(msg.Answer, rr)
}
_, err := msg.Pack()
if err != nil {
t.Fatalf("couldn't pack %v: %v", msg, err)
}
}
func TestParseBackslash(t *testing.T) {
if r, err := NewRR("nul\\000gap.test.globnix.net. 600 IN A 192.0.2.10"); err != nil {
t.Errorf("could not create RR with \\000 in it")
} else {
t.Logf("parsed %s", r.String())
}
if r, err := NewRR(`nul\000gap.test.globnix.net. 600 IN TXT "Hello\123"`); err != nil {
t.Errorf("could not create RR with \\000 in it")
} else {
t.Logf("parsed %s", r.String())
}
if r, err := NewRR(`m\ @\ iek.nl. IN 3600 A 127.0.0.1`); err != nil {
t.Errorf("could not create RR with \\ and \\@ in it")
} else {
t.Logf("parsed %s", r.String())
}
}
func TestILNP(t *testing.T) {
tests := []string{
"host1.example.com.\t3600\tIN\tNID\t10 0014:4fff:ff20:ee64",
"host1.example.com.\t3600\tIN\tNID\t20 0015:5fff:ff21:ee65",
"host2.example.com.\t3600\tIN\tNID\t10 0016:6fff:ff22:ee66",
"host1.example.com.\t3600\tIN\tL32\t10 10.1.2.0",
"host1.example.com.\t3600\tIN\tL32\t20 10.1.4.0",
"host2.example.com.\t3600\tIN\tL32\t10 10.1.8.0",
"host1.example.com.\t3600\tIN\tL64\t10 2001:0DB8:1140:1000",
"host1.example.com.\t3600\tIN\tL64\t20 2001:0DB8:2140:2000",
"host2.example.com.\t3600\tIN\tL64\t10 2001:0DB8:4140:4000",
"host1.example.com.\t3600\tIN\tLP\t10 l64-subnet1.example.com.",
"host1.example.com.\t3600\tIN\tLP\t10 l64-subnet2.example.com.",
"host1.example.com.\t3600\tIN\tLP\t20 l32-subnet1.example.com.",
}
for _, t1 := range tests {
r, err := NewRR(t1)
if err != nil {
t.Fatalf("an error occurred: %v", err)
} else {
if t1 != r.String() {
t.Fatalf("strings should be equal %s %s", t1, r.String())
}
}
}
}
func TestNsapGposEidNimloc(t *testing.T) {
dt := map[string]string{
"foo.bar.com. IN NSAP 21 47000580ffff000000321099991111222233334444": "foo.bar.com.\t3600\tIN\tNSAP\t0x47000580ffff000000321099991111222233334444",
"foo.bar.com. IN NSAP 0x47000580ffff000000321099991111222233334444": "foo.bar.com.\t3600\tIN\tNSAP\t0x47000580ffff000000321099991111222233334444",
"host.school.de IN NSAP 17 39276f3100111100002222333344449876": "host.school.de.\t3600\tIN\tNSAP\t0x39276f3100111100002222333344449876",
"444433332222111199990123000000ff. NSAP-PTR foo.bar.com.": "444433332222111199990123000000ff.\t3600\tIN\tNSAP-PTR\tfoo.bar.com.",
"lillee. IN GPOS -32.6882 116.8652 10.0": "lillee.\t3600\tIN\tGPOS\t-32.6882 116.8652 10.0",
"hinault. IN GPOS -22.6882 116.8652 250.0": "hinault.\t3600\tIN\tGPOS\t-22.6882 116.8652 250.0",
"VENERA. IN NIMLOC 75234159EAC457800920": "VENERA.\t3600\tIN\tNIMLOC\t75234159EAC457800920",
"VAXA. IN EID 3141592653589793": "VAXA.\t3600\tIN\tEID\t3141592653589793",
}
for i, o := range dt {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestPX(t *testing.T) {
dt := map[string]string{
"*.net2.it. IN PX 10 net2.it. PRMD-net2.ADMD-p400.C-it.": "*.net2.it.\t3600\tIN\tPX\t10 net2.it. PRMD-net2.ADMD-p400.C-it.",
"ab.net2.it. IN PX 10 ab.net2.it. O-ab.PRMD-net2.ADMDb.C-it.": "ab.net2.it.\t3600\tIN\tPX\t10 ab.net2.it. O-ab.PRMD-net2.ADMDb.C-it.",
}
for i, o := range dt {
rr, err := NewRR(i)
if err != nil {
t.Error("failed to parse RR: ", err)
continue
}
if rr.String() != o {
t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String())
} else {
t.Logf("RR is OK: `%s'", rr.String())
}
}
}
func TestComment(t *testing.T) {
// Comments we must see
comments := map[string]bool{"; this is comment 1": true,
"; this is comment 4": true, "; this is comment 6": true,
"; this is comment 7": true, "; this is comment 8": true}
zone := `
foo. IN A 10.0.0.1 ; this is comment 1
foo. IN A (
10.0.0.2 ; this is comment2
)
; this is comment3
foo. IN A 10.0.0.3
foo. IN A ( 10.0.0.4 ); this is comment 4
foo. IN A 10.0.0.5
; this is comment5
foo. IN A 10.0.0.6
foo. IN DNSKEY 256 3 5 AwEAAb+8l ; this is comment 6
foo. IN NSEC miek.nl. TXT RRSIG NSEC; this is comment 7
foo. IN TXT "THIS IS TEXT MAN"; this is comment 8
`
for x := range ParseZone(strings.NewReader(zone), ".", "") {
if x.Error == nil {
if x.Comment != "" {
if _, ok := comments[x.Comment]; !ok {
t.Errorf("wrong comment %s", x.Comment)
}
}
}
}
}
func TestEUIxx(t *testing.T) {
tests := map[string]string{
"host.example. IN EUI48 00-00-5e-90-01-2a": "host.example.\t3600\tIN\tEUI48\t00-00-5e-90-01-2a",
"host.example. IN EUI64 00-00-5e-ef-00-00-00-2a": "host.example.\t3600\tIN\tEUI64\t00-00-5e-ef-00-00-00-2a",
}
for i, o := range tests {
r, err := NewRR(i)
if err != nil {
t.Errorf("failed to parse %s: %v", i, err)
}
if r.String() != o {
t.Errorf("want %s, got %s", o, r.String())
}
}
}