1package dns 2 3import ( 4 "bytes" 5 "crypto/rsa" 6 "encoding/hex" 7 "fmt" 8 "math/rand" 9 "net" 10 "reflect" 11 "regexp" 12 "strconv" 13 "strings" 14 "testing" 15 "testing/quick" 16) 17 18func TestDotInName(t *testing.T) { 19 buf := make([]byte, 20) 20 PackDomainName("aa\\.bb.nl.", buf, 0, nil, false) 21 // index 3 must be a real dot 22 if buf[3] != '.' { 23 t.Error("dot should be a real dot") 24 } 25 26 if buf[6] != 2 { 27 t.Error("this must have the value 2") 28 } 29 dom, _, _ := UnpackDomainName(buf, 0) 30 // printing it should yield the backspace again 31 if dom != "aa\\.bb.nl." { 32 t.Error("dot should have been escaped: ", dom) 33 } 34} 35 36func TestDotLastInLabel(t *testing.T) { 37 sample := "aa\\..au." 38 buf := make([]byte, 20) 39 _, err := PackDomainName(sample, buf, 0, nil, false) 40 if err != nil { 41 t.Fatalf("unexpected error packing domain: %v", err) 42 } 43 dom, _, _ := UnpackDomainName(buf, 0) 44 if dom != sample { 45 t.Fatalf("unpacked domain `%s' doesn't match packed domain", dom) 46 } 47} 48 49func TestTooLongDomainName(t *testing.T) { 50 l := "aaabbbcccdddeeefffggghhhiiijjjkkklllmmmnnnooopppqqqrrrsssttt." 51 dom := l + l + l + l + l + l + l 52 _, err := NewRR(dom + " IN A 127.0.0.1") 53 if err == nil { 54 t.Error("should be too long") 55 } 56 _, err = NewRR("..com. IN A 127.0.0.1") 57 if err == nil { 58 t.Error("should fail") 59 } 60} 61 62func TestDomainName(t *testing.T) { 63 tests := []string{"r\\.gieben.miek.nl.", "www\\.www.miek.nl.", 64 "www.*.miek.nl.", "www.*.miek.nl.", 65 } 66 dbuff := make([]byte, 40) 67 68 for _, ts := range tests { 69 if _, err := PackDomainName(ts, dbuff, 0, nil, false); err != nil { 70 t.Error("not a valid domain name") 71 continue 72 } 73 n, _, err := UnpackDomainName(dbuff, 0) 74 if err != nil { 75 t.Error("failed to unpack packed domain name") 76 continue 77 } 78 if ts != n { 79 t.Errorf("must be equal: in: %s, out: %s", ts, n) 80 } 81 } 82} 83 84func TestDomainNameAndTXTEscapes(t *testing.T) { 85 tests := []byte{'.', '(', ')', ';', ' ', '@', '"', '\\', 9, 13, 10, 0, 255} 86 for _, b := range tests { 87 rrbytes := []byte{ 88 1, b, 0, // owner 89 byte(TypeTXT >> 8), byte(TypeTXT), 90 byte(ClassINET >> 8), byte(ClassINET), 91 0, 0, 0, 1, // TTL 92 0, 2, 1, b, // Data 93 } 94 rr1, _, err := UnpackRR(rrbytes, 0) 95 if err != nil { 96 panic(err) 97 } 98 s := rr1.String() 99 rr2, err := NewRR(s) 100 if err != nil { 101 t.Errorf("error parsing unpacked RR's string: %v", err) 102 } 103 repacked := make([]byte, len(rrbytes)) 104 if _, err := PackRR(rr2, repacked, 0, nil, false); err != nil { 105 t.Errorf("error packing parsed RR: %v", err) 106 } 107 if !bytes.Equal(repacked, rrbytes) { 108 t.Error("packed bytes don't match original bytes") 109 } 110 } 111} 112 113func TestTXTEscapeParsing(t *testing.T) { 114 test := [][]string{ 115 {`";"`, `";"`}, 116 {`\;`, `";"`}, 117 {`"\t"`, `"t"`}, 118 {`"\r"`, `"r"`}, 119 {`"\ "`, `" "`}, 120 {`"\;"`, `";"`}, 121 {`"\;\""`, `";\""`}, 122 {`"\(a\)"`, `"(a)"`}, 123 {`"\(a)"`, `"(a)"`}, 124 {`"(a\)"`, `"(a)"`}, 125 {`"(a)"`, `"(a)"`}, 126 {`"\048"`, `"0"`}, 127 {`"\` + "\t" + `"`, `"\009"`}, 128 {`"\` + "\n" + `"`, `"\010"`}, 129 {`"\` + "\r" + `"`, `"\013"`}, 130 {`"\` + "\x11" + `"`, `"\017"`}, 131 {`"\'"`, `"'"`}, 132 } 133 for _, s := range test { 134 rr, err := NewRR(fmt.Sprintf("example.com. IN TXT %v", s[0])) 135 if err != nil { 136 t.Errorf("could not parse %v TXT: %s", s[0], err) 137 continue 138 } 139 140 txt := sprintTxt(rr.(*TXT).Txt) 141 if txt != s[1] { 142 t.Errorf("mismatch after parsing `%v` TXT record: `%v` != `%v`", s[0], txt, s[1]) 143 } 144 } 145} 146 147func GenerateDomain(r *rand.Rand, size int) []byte { 148 dnLen := size % 70 // artificially limit size so there's less to interpret if a failure occurs 149 var dn []byte 150 done := false 151 for i := 0; i < dnLen && !done; { 152 max := dnLen - i 153 if max > 63 { 154 max = 63 155 } 156 lLen := max 157 if lLen != 0 { 158 lLen = int(r.Int31()) % max 159 } 160 done = lLen == 0 161 if done { 162 continue 163 } 164 l := make([]byte, lLen+1) 165 l[0] = byte(lLen) 166 for j := 0; j < lLen; j++ { 167 l[j+1] = byte(rand.Int31()) 168 } 169 dn = append(dn, l...) 170 i += 1 + lLen 171 } 172 return append(dn, 0) 173} 174 175func TestDomainQuick(t *testing.T) { 176 r := rand.New(rand.NewSource(0)) 177 f := func(l int) bool { 178 db := GenerateDomain(r, l) 179 ds, _, err := UnpackDomainName(db, 0) 180 if err != nil { 181 panic(err) 182 } 183 buf := make([]byte, 255) 184 off, err := PackDomainName(ds, buf, 0, nil, false) 185 if err != nil { 186 t.Errorf("error packing domain: %v", err) 187 t.Errorf(" bytes: %v", db) 188 t.Errorf("string: %v", ds) 189 return false 190 } 191 if !bytes.Equal(db, buf[:off]) { 192 t.Errorf("repacked domain doesn't match original:") 193 t.Errorf("src bytes: %v", db) 194 t.Errorf(" string: %v", ds) 195 t.Errorf("out bytes: %v", buf[:off]) 196 return false 197 } 198 return true 199 } 200 if err := quick.Check(f, nil); err != nil { 201 t.Error(err) 202 } 203} 204 205func GenerateTXT(r *rand.Rand, size int) []byte { 206 rdLen := size % 300 // artificially limit size so there's less to interpret if a failure occurs 207 var rd []byte 208 for i := 0; i < rdLen; { 209 max := rdLen - 1 210 if max > 255 { 211 max = 255 212 } 213 sLen := max 214 if max != 0 { 215 sLen = int(r.Int31()) % max 216 } 217 s := make([]byte, sLen+1) 218 s[0] = byte(sLen) 219 for j := 0; j < sLen; j++ { 220 s[j+1] = byte(rand.Int31()) 221 } 222 rd = append(rd, s...) 223 i += 1 + sLen 224 } 225 return rd 226} 227 228// Ok, 2 things. 1) this test breaks with the new functionality of splitting up larger txt 229// chunks into 255 byte pieces. 2) I don't like the random nature of this thing, because I can't 230// place the quotes where they need to be. 231// So either add some code the places the quotes in just the right spots, make this non random 232// or do something else. 233// Disabled for now. (miek) 234func testTXTRRQuick(t *testing.T) { 235 s := rand.NewSource(0) 236 r := rand.New(s) 237 typeAndClass := []byte{ 238 byte(TypeTXT >> 8), byte(TypeTXT), 239 byte(ClassINET >> 8), byte(ClassINET), 240 0, 0, 0, 1, // TTL 241 } 242 f := func(l int) bool { 243 owner := GenerateDomain(r, l) 244 rdata := GenerateTXT(r, l) 245 rrbytes := make([]byte, 0, len(owner)+2+2+4+2+len(rdata)) 246 rrbytes = append(rrbytes, owner...) 247 rrbytes = append(rrbytes, typeAndClass...) 248 rrbytes = append(rrbytes, byte(len(rdata)>>8)) 249 rrbytes = append(rrbytes, byte(len(rdata))) 250 rrbytes = append(rrbytes, rdata...) 251 rr, _, err := UnpackRR(rrbytes, 0) 252 if err != nil { 253 panic(err) 254 } 255 buf := make([]byte, len(rrbytes)*3) 256 off, err := PackRR(rr, buf, 0, nil, false) 257 if err != nil { 258 t.Errorf("pack Error: %v\nRR: %v", err, rr) 259 return false 260 } 261 buf = buf[:off] 262 if !bytes.Equal(buf, rrbytes) { 263 t.Errorf("packed bytes don't match original bytes") 264 t.Errorf("src bytes: %v", rrbytes) 265 t.Errorf(" struct: %v", rr) 266 t.Errorf("out bytes: %v", buf) 267 return false 268 } 269 if len(rdata) == 0 { 270 // string'ing won't produce any data to parse 271 return true 272 } 273 rrString := rr.String() 274 rr2, err := NewRR(rrString) 275 if err != nil { 276 t.Errorf("error parsing own output: %v", err) 277 t.Errorf("struct: %v", rr) 278 t.Errorf("string: %v", rrString) 279 return false 280 } 281 if rr2.String() != rrString { 282 t.Errorf("parsed rr.String() doesn't match original string") 283 t.Errorf("original: %v", rrString) 284 t.Errorf(" parsed: %v", rr2.String()) 285 return false 286 } 287 288 buf = make([]byte, len(rrbytes)*3) 289 off, err = PackRR(rr2, buf, 0, nil, false) 290 if err != nil { 291 t.Errorf("error packing parsed rr: %v", err) 292 t.Errorf("unpacked Struct: %v", rr) 293 t.Errorf(" string: %v", rrString) 294 t.Errorf(" parsed Struct: %v", rr2) 295 return false 296 } 297 buf = buf[:off] 298 if !bytes.Equal(buf, rrbytes) { 299 t.Errorf("parsed packed bytes don't match original bytes") 300 t.Errorf(" source bytes: %v", rrbytes) 301 t.Errorf("unpacked struct: %v", rr) 302 t.Errorf(" string: %v", rrString) 303 t.Errorf(" parsed struct: %v", rr2) 304 t.Errorf(" repacked bytes: %v", buf) 305 return false 306 } 307 return true 308 } 309 c := &quick.Config{MaxCountScale: 10} 310 if err := quick.Check(f, c); err != nil { 311 t.Error(err) 312 } 313} 314 315func TestParseDirectiveMisc(t *testing.T) { 316 tests := map[string]string{ 317 "$ORIGIN miek.nl.\na IN NS b": "a.miek.nl.\t3600\tIN\tNS\tb.miek.nl.", 318 "$TTL 2H\nmiek.nl. IN NS b.": "miek.nl.\t7200\tIN\tNS\tb.", 319 "miek.nl. 1D IN NS b.": "miek.nl.\t86400\tIN\tNS\tb.", 320 `name. IN SOA a6.nstld.com. hostmaster.nic.name. ( 321 203362132 ; serial 322 5m ; refresh (5 minutes) 323 5m ; retry (5 minutes) 324 2w ; expire (2 weeks) 325 300 ; minimum (5 minutes) 326)`: "name.\t3600\tIN\tSOA\ta6.nstld.com. hostmaster.nic.name. 203362132 300 300 1209600 300", 327 ". 3600000 IN NS ONE.MY-ROOTS.NET.": ".\t3600000\tIN\tNS\tONE.MY-ROOTS.NET.", 328 "ONE.MY-ROOTS.NET. 3600000 IN A 192.168.1.1": "ONE.MY-ROOTS.NET.\t3600000\tIN\tA\t192.168.1.1", 329 } 330 for i, o := range tests { 331 rr, err := NewRR(i) 332 if err != nil { 333 t.Error("failed to parse RR: ", err) 334 continue 335 } 336 if rr.String() != o { 337 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 338 } 339 } 340} 341 342func TestNSEC(t *testing.T) { 343 nsectests := map[string]string{ 344 "nl. IN NSEC3PARAM 1 0 5 30923C44C6CBBB8F": "nl.\t3600\tIN\tNSEC3PARAM\t1 0 5 30923C44C6CBBB8F", 345 "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", 346 "localhost.dnssex.nl. IN NSEC www.dnssex.nl. A RRSIG NSEC": "localhost.dnssex.nl.\t3600\tIN\tNSEC\twww.dnssex.nl. A RRSIG NSEC", 347 "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", 348 "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", 349 "44ohaq2njb0idnvolt9ggthvsk1e1uv8.skydns.test. NSEC3 1 0 0 - 44OHAQ2NJB0IDNVOLT9GGTHVSK1E1UVA": "44ohaq2njb0idnvolt9ggthvsk1e1uv8.skydns.test.\t3600\tIN\tNSEC3\t1 0 0 - 44OHAQ2NJB0IDNVOLT9GGTHVSK1E1UVA", 350 } 351 for i, o := range nsectests { 352 rr, err := NewRR(i) 353 if err != nil { 354 t.Error("failed to parse RR: ", err) 355 continue 356 } 357 if rr.String() != o { 358 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 359 } 360 } 361} 362 363func TestParseLOC(t *testing.T) { 364 lt := map[string]string{ 365 "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", 366 "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", 367 } 368 for i, o := range lt { 369 rr, err := NewRR(i) 370 if err != nil { 371 t.Error("failed to parse RR: ", err) 372 continue 373 } 374 if rr.String() != o { 375 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 376 } 377 } 378} 379 380func TestParseDS(t *testing.T) { 381 dt := map[string]string{ 382 "example.net. 3600 IN DS 40692 12 3 22261A8B0E0D799183E35E24E2AD6BB58533CBA7E3B14D659E9CA09B 2071398F": "example.net.\t3600\tIN\tDS\t40692 12 3 22261A8B0E0D799183E35E24E2AD6BB58533CBA7E3B14D659E9CA09B2071398F", 383 } 384 for i, o := range dt { 385 rr, err := NewRR(i) 386 if err != nil { 387 t.Error("failed to parse RR: ", err) 388 continue 389 } 390 if rr.String() != o { 391 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 392 } 393 } 394} 395 396func TestQuotes(t *testing.T) { 397 tests := map[string]string{ 398 `t.example.com. IN TXT "a bc"`: "t.example.com.\t3600\tIN\tTXT\t\"a bc\"", 399 `t.example.com. IN TXT "a 400 bc"`: "t.example.com.\t3600\tIN\tTXT\t\"a\\010 bc\"", 401 `t.example.com. IN TXT ""`: "t.example.com.\t3600\tIN\tTXT\t\"\"", 402 `t.example.com. IN TXT "a"`: "t.example.com.\t3600\tIN\tTXT\t\"a\"", 403 `t.example.com. IN TXT "aa"`: "t.example.com.\t3600\tIN\tTXT\t\"aa\"", 404 `t.example.com. IN TXT "aaa" ;`: "t.example.com.\t3600\tIN\tTXT\t\"aaa\"", 405 `t.example.com. IN TXT "abc" "DEF"`: "t.example.com.\t3600\tIN\tTXT\t\"abc\" \"DEF\"", 406 `t.example.com. IN TXT "abc" ( "DEF" )`: "t.example.com.\t3600\tIN\tTXT\t\"abc\" \"DEF\"", 407 `t.example.com. IN TXT aaa ;`: "t.example.com.\t3600\tIN\tTXT\t\"aaa\"", 408 `t.example.com. IN TXT aaa aaa;`: "t.example.com.\t3600\tIN\tTXT\t\"aaa\" \"aaa\"", 409 `t.example.com. IN TXT aaa aaa`: "t.example.com.\t3600\tIN\tTXT\t\"aaa\" \"aaa\"", 410 `t.example.com. IN TXT aaa`: "t.example.com.\t3600\tIN\tTXT\t\"aaa\"", 411 "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.", 412 "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.", 413 "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.", 414 "cid.urn.arpa. NAPTR 100 10 \"\" \"\" \"/urn:cid:.+@([^\\.]+\\.)(.*)$/\\2/i\" .": "cid.urn.arpa.\t3600\tIN\tNAPTR\t100 10 \"\" \"\" \"/urn:cid:.+@([^\\.]+\\.)(.*)$/\\2/i\" .", 415 } 416 for i, o := range tests { 417 rr, err := NewRR(i) 418 if err != nil { 419 t.Error("failed to parse RR: ", err) 420 continue 421 } 422 if rr.String() != o { 423 t.Errorf("`%s' should be equal to\n`%s', but is\n`%s'", i, o, rr.String()) 424 } 425 } 426} 427 428func TestParseClass(t *testing.T) { 429 tests := map[string]string{ 430 "t.example.com. IN A 127.0.0.1": "t.example.com. 3600 IN A 127.0.0.1", 431 "t.example.com. CS A 127.0.0.1": "t.example.com. 3600 CS A 127.0.0.1", 432 "t.example.com. CH A 127.0.0.1": "t.example.com. 3600 CH A 127.0.0.1", 433 // ClassANY can not occur in zone files 434 // "t.example.com. ANY A 127.0.0.1": "t.example.com. 3600 ANY A 127.0.0.1", 435 "t.example.com. NONE A 127.0.0.1": "t.example.com. 3600 NONE A 127.0.0.1", 436 "t.example.com. CLASS255 A 127.0.0.1": "t.example.com. 3600 CLASS255 A 127.0.0.1", 437 } 438 for i, o := range tests { 439 rr, err := NewRR(i) 440 if err != nil { 441 t.Error("failed to parse RR: ", err) 442 continue 443 } 444 if rr.String() != o { 445 t.Errorf("`%s' should be equal to\n`%s', but is\n`%s'", i, o, rr.String()) 446 } 447 } 448} 449 450func TestBrace(t *testing.T) { 451 tests := map[string]string{ 452 "(miek.nl.) 3600 IN A 127.0.1.1": "miek.nl.\t3600\tIN\tA\t127.0.1.1", 453 "miek.nl. (3600) IN MX (10) elektron.atoom.net.": "miek.nl.\t3600\tIN\tMX\t10 elektron.atoom.net.", 454 `miek.nl. IN ( 455 3600 A 127.0.0.1)`: "miek.nl.\t3600\tIN\tA\t127.0.0.1", 456 "(miek.nl.) (A) (127.0.2.1)": "miek.nl.\t3600\tIN\tA\t127.0.2.1", 457 "miek.nl A 127.0.3.1": "miek.nl.\t3600\tIN\tA\t127.0.3.1", 458 "_ssh._tcp.local. 60 IN (PTR) stora._ssh._tcp.local.": "_ssh._tcp.local.\t60\tIN\tPTR\tstora._ssh._tcp.local.", 459 "miek.nl. NS ns.miek.nl": "miek.nl.\t3600\tIN\tNS\tns.miek.nl.", 460 `(miek.nl.) ( 461 (IN) 462 (AAAA) 463 (::1) )`: "miek.nl.\t3600\tIN\tAAAA\t::1", 464 `(miek.nl.) ( 465 (IN) 466 (AAAA) 467 (::1))`: "miek.nl.\t3600\tIN\tAAAA\t::1", 468 "miek.nl. IN AAAA ::2": "miek.nl.\t3600\tIN\tAAAA\t::2", 469 `((m)(i)ek.(n)l.) (SOA) (soa.) (soa.) ( 470 2009032802 ; serial 471 21600 ; refresh (6 hours) 472 7(2)00 ; retry (2 hours) 473 604()800 ; expire (1 week) 474 3600 ; minimum (1 hour) 475 )`: "miek.nl.\t3600\tIN\tSOA\tsoa. soa. 2009032802 21600 7200 604800 3600", 476 "miek\\.nl. IN A 127.0.0.10": "miek\\.nl.\t3600\tIN\tA\t127.0.0.10", 477 "miek.nl. IN A 127.0.0.11": "miek.nl.\t3600\tIN\tA\t127.0.0.11", 478 "miek.nl. A 127.0.0.12": "miek.nl.\t3600\tIN\tA\t127.0.0.12", 479 `miek.nl. 86400 IN SOA elektron.atoom.net. miekg.atoom.net. ( 480 2009032802 ; serial 481 21600 ; refresh (6 hours) 482 7200 ; retry (2 hours) 483 604800 ; expire (1 week) 484 3600 ; minimum (1 hour) 485 )`: "miek.nl.\t86400\tIN\tSOA\telektron.atoom.net. miekg.atoom.net. 2009032802 21600 7200 604800 3600", 486 } 487 for i, o := range tests { 488 rr, err := NewRR(i) 489 if err != nil { 490 t.Errorf("failed to parse RR: %v\n\t%s", err, i) 491 continue 492 } 493 if rr.String() != o { 494 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 495 } 496 } 497} 498 499func TestParseFailure(t *testing.T) { 500 tests := []string{"miek.nl. IN A 327.0.0.1", 501 "miek.nl. IN AAAA ::x", 502 "miek.nl. IN MX a0 miek.nl.", 503 "miek.nl aap IN MX mx.miek.nl.", 504 "miek.nl 200 IN mxx 10 mx.miek.nl.", 505 "miek.nl. inn MX 10 mx.miek.nl.", 506 // "miek.nl. IN CNAME ", // actually valid nowadays, zero size rdata 507 "miek.nl. IN CNAME ..", 508 "miek.nl. PA MX 10 miek.nl.", 509 "miek.nl. ) IN MX 10 miek.nl.", 510 } 511 512 for _, s := range tests { 513 _, err := NewRR(s) 514 if err == nil { 515 t.Errorf("should have triggered an error: \"%s\"", s) 516 } 517 } 518} 519 520func TestOmittedTTL(t *testing.T) { 521 zone := ` 522$ORIGIN example.com. 523example.com. 42 IN SOA ns1.example.com. hostmaster.example.com. 1 86400 60 86400 3600 ; TTL=42 SOA 524example.com. NS 2 ; TTL=42 absolute owner name 525@ MD 3 ; TTL=42 current-origin owner name 526 MF 4 ; TTL=42 leading-space implied owner name 527 43 TYPE65280 \# 1 05 ; TTL=43 implied owner name explicit TTL 528 MB 6 ; TTL=43 leading-tab implied owner name 529$TTL 1337 530example.com. 88 MG 7 ; TTL=88 explicit TTL 531example.com. MR 8 ; TTL=1337 after first $TTL 532$TTL 314 533 1 TXT 9 ; TTL=1 implied owner name explicit TTL 534example.com. DNAME 10 ; TTL=314 after second $TTL 535` 536 reCaseFromComment := regexp.MustCompile(`TTL=(\d+)\s+(.*)`) 537 records := ParseZone(strings.NewReader(zone), "", "") 538 var i int 539 for record := range records { 540 i++ 541 if record.Error != nil { 542 t.Error(record.Error) 543 continue 544 } 545 expected := reCaseFromComment.FindStringSubmatch(record.Comment) 546 expectedTTL, _ := strconv.ParseUint(expected[1], 10, 32) 547 ttl := record.RR.Header().Ttl 548 if ttl != uint32(expectedTTL) { 549 t.Errorf("%s: expected TTL %d, got %d", expected[2], expectedTTL, ttl) 550 } 551 } 552 if i != 10 { 553 t.Errorf("expected %d records, got %d", 5, i) 554 } 555} 556 557func TestRelativeNameErrors(t *testing.T) { 558 var badZones = []struct { 559 label string 560 zoneContents string 561 expectedErr string 562 }{ 563 { 564 "relative owner name without origin", 565 "example.com 3600 IN SOA ns.example.com. hostmaster.example.com. 1 86400 60 86400 3600", 566 "bad owner name", 567 }, 568 { 569 "relative owner name in RDATA", 570 "example.com. 3600 IN SOA ns hostmaster 1 86400 60 86400 3600", 571 "bad SOA Ns", 572 }, 573 { 574 "origin reference without origin", 575 "@ 3600 IN SOA ns.example.com. hostmaster.example.com. 1 86400 60 86400 3600", 576 "bad owner name", 577 }, 578 { 579 "relative owner name in $INCLUDE", 580 "$INCLUDE file.db example.com", 581 "bad origin name", 582 }, 583 { 584 "relative owner name in $ORIGIN", 585 "$ORIGIN example.com", 586 "bad origin name", 587 }, 588 } 589 for _, errorCase := range badZones { 590 entries := ParseZone(strings.NewReader(errorCase.zoneContents), "", "") 591 for entry := range entries { 592 if entry.Error == nil { 593 t.Errorf("%s: expected error, got nil", errorCase.label) 594 continue 595 } 596 err := entry.Error.err 597 if err != errorCase.expectedErr { 598 t.Errorf("%s: expected error `%s`, got `%s`", errorCase.label, errorCase.expectedErr, err) 599 } 600 } 601 } 602} 603 604func TestHIP(t *testing.T) { 605 h := `www.example.com. IN HIP ( 2 200100107B1A74DF365639CC39F1D578 606 AwEAAbdxyhNuSutc5EMzxTs9LBPCIkOFH8cIvM4p 6079+LrV4e19WzK00+CI6zBCQTdtWsuxKbWIy87UOoJTwkUs7lBu+Upr1gsNrut79ryra+bSRGQ 608b1slImA8YVJyuIDsj7kwzG7jnERNqnWxZ48AWkskmdHaVDP4BcelrTI3rMXdXF5D 609 rvs1.example.com. 610 rvs2.example.com. )` 611 rr, err := NewRR(h) 612 if err != nil { 613 t.Fatalf("failed to parse RR: %v", err) 614 } 615 msg := new(Msg) 616 msg.Answer = []RR{rr, rr} 617 bytes, err := msg.Pack() 618 if err != nil { 619 t.Fatalf("failed to pack msg: %v", err) 620 } 621 if err := msg.Unpack(bytes); err != nil { 622 t.Fatalf("failed to unpack msg: %v", err) 623 } 624 if len(msg.Answer) != 2 { 625 t.Fatalf("2 answers expected: %v", msg) 626 } 627 for i, rr := range msg.Answer { 628 rr := rr.(*HIP) 629 if l := len(rr.RendezvousServers); l != 2 { 630 t.Fatalf("2 servers expected, only %d in record %d:\n%v", l, i, msg) 631 } 632 for j, s := range []string{"rvs1.example.com.", "rvs2.example.com."} { 633 if rr.RendezvousServers[j] != s { 634 t.Fatalf("expected server %d of record %d to be %s:\n%v", j, i, s, msg) 635 } 636 } 637 } 638} 639 640// Test with no known RR on the line 641func TestLineNumberError2(t *testing.T) { 642 tests := map[string]string{ 643 "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", 644 "example.com 1000 IN TALINK a.example.com. b..example.com.": "dns: bad TALINK NextName: \"b..example.com.\" at line: 1:57", 645 "example.com 1000 IN TALINK ( a.example.com. b..example.com. )": "dns: bad TALINK NextName: \"b..example.com.\" at line: 1:60", 646 `example.com 1000 IN TALINK ( a.example.com. 647 bb..example.com. )`: "dns: bad TALINK NextName: \"bb..example.com.\" at line: 2:18", 648 // This is a bug, it should report an error on line 1, but the new is already processed. 649 `example.com 1000 IN TALINK ( a.example.com. b...example.com. 650 )`: "dns: bad TALINK NextName: \"b...example.com.\" at line: 2:1"} 651 652 for in, errStr := range tests { 653 _, err := NewRR(in) 654 if err == nil { 655 t.Error("err is nil") 656 } else { 657 if err.Error() != errStr { 658 t.Errorf("%s: error should be %s is %v", in, errStr, err) 659 } 660 } 661 } 662} 663 664// Test if the calculations are correct 665func TestRfc1982(t *testing.T) { 666 // If the current time and the timestamp are more than 68 years apart 667 // it means the date has wrapped. 0 is 1970 668 669 // fall in the current 68 year span 670 strtests := []string{"20120525134203", "19700101000000", "20380119031408"} 671 for _, v := range strtests { 672 if x, _ := StringToTime(v); v != TimeToString(x) { 673 t.Errorf("1982 arithmetic string failure %s (%s:%d)", v, TimeToString(x), x) 674 } 675 } 676 677 inttests := map[uint32]string{0: "19700101000000", 678 1 << 31: "20380119031408", 679 1<<32 - 1: "21060207062815", 680 } 681 for i, v := range inttests { 682 if TimeToString(i) != v { 683 t.Errorf("1982 arithmetic int failure %d:%s (%s)", i, v, TimeToString(i)) 684 } 685 } 686 687 // Future tests, these dates get parsed to a date within the current 136 year span 688 future := map[string]string{"22680119031408": "20631123173144", 689 "19010101121212": "20370206184028", 690 "19210101121212": "20570206184028", 691 "19500101121212": "20860206184028", 692 "19700101000000": "19700101000000", 693 "19690101000000": "21050207062816", 694 "29210101121212": "21040522212236", 695 } 696 for from, to := range future { 697 x, _ := StringToTime(from) 698 y := TimeToString(x) 699 if y != to { 700 t.Errorf("1982 arithmetic future failure %s:%s (%s)", from, to, y) 701 } 702 } 703} 704 705func TestEmpty(t *testing.T) { 706 for range ParseZone(strings.NewReader(""), "", "") { 707 t.Errorf("should be empty") 708 } 709} 710 711func TestLowercaseTokens(t *testing.T) { 712 var testrecords = []string{ 713 "example.org. 300 IN a 1.2.3.4", 714 "example.org. 300 in A 1.2.3.4", 715 "example.org. 300 in a 1.2.3.4", 716 "example.org. 300 a 1.2.3.4", 717 "example.org. 300 A 1.2.3.4", 718 "example.org. IN a 1.2.3.4", 719 "example.org. in A 1.2.3.4", 720 "example.org. in a 1.2.3.4", 721 "example.org. a 1.2.3.4", 722 "example.org. A 1.2.3.4", 723 "example.org. a 1.2.3.4", 724 "$ORIGIN example.org.\n a 1.2.3.4", 725 "$Origin example.org.\n a 1.2.3.4", 726 "$origin example.org.\n a 1.2.3.4", 727 "example.org. Class1 Type1 1.2.3.4", 728 } 729 for _, testrr := range testrecords { 730 _, err := NewRR(testrr) 731 if err != nil { 732 t.Errorf("failed to parse %#v, got %v", testrr, err) 733 } 734 } 735} 736 737func TestSRVPacking(t *testing.T) { 738 msg := Msg{} 739 740 things := []string{"1.2.3.4:8484", 741 "45.45.45.45:8484", 742 "84.84.84.84:8484", 743 } 744 745 for i, n := range things { 746 h, p, err := net.SplitHostPort(n) 747 if err != nil { 748 continue 749 } 750 port, _ := strconv.ParseUint(p, 10, 16) 751 752 rr := &SRV{ 753 Hdr: RR_Header{Name: "somename.", 754 Rrtype: TypeSRV, 755 Class: ClassINET, 756 Ttl: 5}, 757 Priority: uint16(i), 758 Weight: 5, 759 Port: uint16(port), 760 Target: h + ".", 761 } 762 763 msg.Answer = append(msg.Answer, rr) 764 } 765 766 _, err := msg.Pack() 767 if err != nil { 768 t.Fatalf("couldn't pack %v: %v", msg, err) 769 } 770} 771 772func TestParseBackslash(t *testing.T) { 773 if _, err := NewRR("nul\\000gap.test.globnix.net. 600 IN A 192.0.2.10"); err != nil { 774 t.Errorf("could not create RR with \\000 in it") 775 } 776 if _, err := NewRR(`nul\000gap.test.globnix.net. 600 IN TXT "Hello\123"`); err != nil { 777 t.Errorf("could not create RR with \\000 in it") 778 } 779 if _, err := NewRR(`m\ @\ iek.nl. IN 3600 A 127.0.0.1`); err != nil { 780 t.Errorf("could not create RR with \\ and \\@ in it") 781 } 782} 783 784func TestILNP(t *testing.T) { 785 tests := []string{ 786 "host1.example.com.\t3600\tIN\tNID\t10 0014:4fff:ff20:ee64", 787 "host1.example.com.\t3600\tIN\tNID\t20 0015:5fff:ff21:ee65", 788 "host2.example.com.\t3600\tIN\tNID\t10 0016:6fff:ff22:ee66", 789 "host1.example.com.\t3600\tIN\tL32\t10 10.1.2.0", 790 "host1.example.com.\t3600\tIN\tL32\t20 10.1.4.0", 791 "host2.example.com.\t3600\tIN\tL32\t10 10.1.8.0", 792 "host1.example.com.\t3600\tIN\tL64\t10 2001:0DB8:1140:1000", 793 "host1.example.com.\t3600\tIN\tL64\t20 2001:0DB8:2140:2000", 794 "host2.example.com.\t3600\tIN\tL64\t10 2001:0DB8:4140:4000", 795 "host1.example.com.\t3600\tIN\tLP\t10 l64-subnet1.example.com.", 796 "host1.example.com.\t3600\tIN\tLP\t10 l64-subnet2.example.com.", 797 "host1.example.com.\t3600\tIN\tLP\t20 l32-subnet1.example.com.", 798 } 799 for _, t1 := range tests { 800 r, err := NewRR(t1) 801 if err != nil { 802 t.Fatalf("an error occurred: %v", err) 803 } else { 804 if t1 != r.String() { 805 t.Fatalf("strings should be equal %s %s", t1, r.String()) 806 } 807 } 808 } 809} 810 811func TestGposEidNimloc(t *testing.T) { 812 dt := map[string]string{ 813 "444433332222111199990123000000ff. NSAP-PTR foo.bar.com.": "444433332222111199990123000000ff.\t3600\tIN\tNSAP-PTR\tfoo.bar.com.", 814 "lillee. IN GPOS -32.6882 116.8652 10.0": "lillee.\t3600\tIN\tGPOS\t-32.6882 116.8652 10.0", 815 "hinault. IN GPOS -22.6882 116.8652 250.0": "hinault.\t3600\tIN\tGPOS\t-22.6882 116.8652 250.0", 816 "VENERA. IN NIMLOC 75234159EAC457800920": "VENERA.\t3600\tIN\tNIMLOC\t75234159EAC457800920", 817 "VAXA. IN EID 3141592653589793": "VAXA.\t3600\tIN\tEID\t3141592653589793", 818 } 819 for i, o := range dt { 820 rr, err := NewRR(i) 821 if err != nil { 822 t.Error("failed to parse RR: ", err) 823 continue 824 } 825 if rr.String() != o { 826 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 827 } 828 } 829} 830 831func TestPX(t *testing.T) { 832 dt := map[string]string{ 833 "*.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.", 834 "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.", 835 } 836 for i, o := range dt { 837 rr, err := NewRR(i) 838 if err != nil { 839 t.Error("failed to parse RR: ", err) 840 continue 841 } 842 if rr.String() != o { 843 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 844 } 845 } 846} 847 848func TestComment(t *testing.T) { 849 // Comments we must see 850 comments := map[string]bool{ 851 "; this is comment 1": true, 852 "; this is comment 2": true, 853 "; this is comment 4": true, 854 "; this is comment 6": true, 855 "; this is comment 7": true, 856 "; this is comment 8": true, 857 } 858 zone := ` 859foo. IN A 10.0.0.1 ; this is comment 1 860foo. IN A ( 861 10.0.0.2 ; this is comment 2 862) 863; this is comment 3 864foo. IN A 10.0.0.3 865foo. IN A ( 10.0.0.4 ); this is comment 4 866 867foo. IN A 10.0.0.5 868; this is comment 5 869 870foo. IN A 10.0.0.6 871 872foo. IN DNSKEY 256 3 5 AwEAAb+8l ; this is comment 6 873foo. IN NSEC miek.nl. TXT RRSIG NSEC; this is comment 7 874foo. IN TXT "THIS IS TEXT MAN"; this is comment 8 875` 876 for x := range ParseZone(strings.NewReader(zone), ".", "") { 877 if x.Error == nil { 878 if x.Comment != "" { 879 if _, ok := comments[x.Comment]; !ok { 880 t.Errorf("wrong comment %q", x.Comment) 881 } 882 } 883 } 884 } 885} 886 887func TestParseZoneComments(t *testing.T) { 888 for i, test := range []struct { 889 zone string 890 comments []string 891 }{ 892 { 893 `name. IN SOA a6.nstld.com. hostmaster.nic.name. ( 894 203362132 ; serial 895 5m ; refresh (5 minutes) 896 5m ; retry (5 minutes) 897 2w ; expire (2 weeks) 898 300 ; minimum (5 minutes) 899 ) ; y 900. 3600000 IN NS ONE.MY-ROOTS.NET. ; x`, 901 []string{"; serial ; refresh (5 minutes) ; retry (5 minutes) ; expire (2 weeks) ; minimum (5 minutes) ; y", "; x"}, 902 }, 903 { 904 `name. IN SOA a6.nstld.com. hostmaster.nic.name. ( 905 203362132 ; serial 906 5m ; refresh (5 minutes) 907 5m ; retry (5 minutes) 908 2w ; expire (2 weeks) 909 300 ; minimum (5 minutes) 910 ) ; y 911. 3600000 IN NS ONE.MY-ROOTS.NET.`, 912 []string{"; serial ; refresh (5 minutes) ; retry (5 minutes) ; expire (2 weeks) ; minimum (5 minutes) ; y", ""}, 913 }, 914 { 915 `name. IN SOA a6.nstld.com. hostmaster.nic.name. ( 916 203362132 ; serial 917 5m ; refresh (5 minutes) 918 5m ; retry (5 minutes) 919 2w ; expire (2 weeks) 920 300 ; minimum (5 minutes) 921 ) 922. 3600000 IN NS ONE.MY-ROOTS.NET.`, 923 []string{"; serial ; refresh (5 minutes) ; retry (5 minutes) ; expire (2 weeks) ; minimum (5 minutes)", ""}, 924 }, 925 { 926 `name. IN SOA a6.nstld.com. hostmaster.nic.name. ( 927 203362132 ; serial 928 5m ; refresh (5 minutes) 929 5m ; retry (5 minutes) 930 2w ; expire (2 weeks) 931 300 ; minimum (5 minutes) 932 ) 933. 3600000 IN NS ONE.MY-ROOTS.NET. ; x`, 934 []string{"; serial ; refresh (5 minutes) ; retry (5 minutes) ; expire (2 weeks) ; minimum (5 minutes)", "; x"}, 935 }, 936 { 937 `name. IN SOA a6.nstld.com. hostmaster.nic.name. ( 938 203362132 ; serial 939 5m ; refresh (5 minutes) 940 5m ; retry (5 minutes) 941 2w ; expire (2 weeks) 942 300 ; minimum (5 minutes) 943 )`, 944 []string{"; serial ; refresh (5 minutes) ; retry (5 minutes) ; expire (2 weeks) ; minimum (5 minutes)"}, 945 }, 946 { 947 `. 3600000 IN NS ONE.MY-ROOTS.NET. ; x`, 948 []string{"; x"}, 949 }, 950 { 951 `. 3600000 IN NS ONE.MY-ROOTS.NET.`, 952 []string{""}, 953 }, 954 { 955 `. 3600000 IN NS ONE.MY-ROOTS.NET. ;;x`, 956 []string{";;x"}, 957 }, 958 } { 959 r := strings.NewReader(test.zone) 960 961 var j int 962 for r := range ParseZone(r, "", "") { 963 if r.Error != nil { 964 t.Fatal(r.Error) 965 } 966 967 if j >= len(test.comments) { 968 t.Fatalf("too many records for zone %d at %d record, expected %d", i, j+1, len(test.comments)) 969 } 970 971 if r.Comment != test.comments[j] { 972 t.Errorf("invalid comment for record %d:%d %v / %v", i, j, r.RR, r.Error) 973 t.Logf("expected %q", test.comments[j]) 974 t.Logf("got %q", r.Comment) 975 } 976 977 j++ 978 } 979 980 if j != len(test.comments) { 981 t.Errorf("too few records for zone %d, got %d, expected %d", i, j, len(test.comments)) 982 } 983 } 984} 985 986func TestEUIxx(t *testing.T) { 987 tests := map[string]string{ 988 "host.example. IN EUI48 00-00-5e-90-01-2a": "host.example.\t3600\tIN\tEUI48\t00-00-5e-90-01-2a", 989 "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", 990 } 991 for i, o := range tests { 992 r, err := NewRR(i) 993 if err != nil { 994 t.Errorf("failed to parse %s: %v", i, err) 995 } 996 if r.String() != o { 997 t.Errorf("want %s, got %s", o, r.String()) 998 } 999 } 1000} 1001 1002func TestUserRR(t *testing.T) { 1003 tests := map[string]string{ 1004 "host.example. IN UID 1234": "host.example.\t3600\tIN\tUID\t1234", 1005 "host.example. IN GID 1234556": "host.example.\t3600\tIN\tGID\t1234556", 1006 "host.example. IN UINFO \"Miek Gieben\"": "host.example.\t3600\tIN\tUINFO\t\"Miek Gieben\"", 1007 } 1008 for i, o := range tests { 1009 r, err := NewRR(i) 1010 if err != nil { 1011 t.Errorf("failed to parse %s: %v", i, err) 1012 } 1013 if r.String() != o { 1014 t.Errorf("want %s, got %s", o, r.String()) 1015 } 1016 } 1017} 1018 1019func TestTXT(t *testing.T) { 1020 // Test single entry TXT record 1021 rr, err := NewRR(`_raop._tcp.local. 60 IN TXT "single value"`) 1022 if err != nil { 1023 t.Error("failed to parse single value TXT record", err) 1024 } else if rr, ok := rr.(*TXT); !ok { 1025 t.Error("wrong type, record should be of type TXT") 1026 } else { 1027 if len(rr.Txt) != 1 { 1028 t.Error("bad size of TXT value:", len(rr.Txt)) 1029 } else if rr.Txt[0] != "single value" { 1030 t.Error("bad single value") 1031 } 1032 if rr.String() != `_raop._tcp.local. 60 IN TXT "single value"` { 1033 t.Error("bad representation of TXT record:", rr.String()) 1034 } 1035 if rr.len() != 28+1+12 { 1036 t.Error("bad size of serialized record:", rr.len()) 1037 } 1038 } 1039 1040 // Test multi entries TXT record 1041 rr, err = NewRR(`_raop._tcp.local. 60 IN TXT "a=1" "b=2" "c=3" "d=4"`) 1042 if err != nil { 1043 t.Error("failed to parse multi-values TXT record", err) 1044 } else if rr, ok := rr.(*TXT); !ok { 1045 t.Error("wrong type, record should be of type TXT") 1046 } else { 1047 if len(rr.Txt) != 4 { 1048 t.Error("bad size of TXT multi-value:", len(rr.Txt)) 1049 } else if rr.Txt[0] != "a=1" || rr.Txt[1] != "b=2" || rr.Txt[2] != "c=3" || rr.Txt[3] != "d=4" { 1050 t.Error("bad values in TXT records") 1051 } 1052 if rr.String() != `_raop._tcp.local. 60 IN TXT "a=1" "b=2" "c=3" "d=4"` { 1053 t.Error("bad representation of TXT multi value record:", rr.String()) 1054 } 1055 if rr.len() != 28+1+3+1+3+1+3+1+3 { 1056 t.Error("bad size of serialized multi value record:", rr.len()) 1057 } 1058 } 1059 1060 // Test empty-string in TXT record 1061 rr, err = NewRR(`_raop._tcp.local. 60 IN TXT ""`) 1062 if err != nil { 1063 t.Error("failed to parse empty-string TXT record", err) 1064 } else if rr, ok := rr.(*TXT); !ok { 1065 t.Error("wrong type, record should be of type TXT") 1066 } else { 1067 if len(rr.Txt) != 1 { 1068 t.Error("bad size of TXT empty-string value:", len(rr.Txt)) 1069 } else if rr.Txt[0] != "" { 1070 t.Error("bad value for empty-string TXT record") 1071 } 1072 if rr.String() != `_raop._tcp.local. 60 IN TXT ""` { 1073 t.Error("bad representation of empty-string TXT record:", rr.String()) 1074 } 1075 if rr.len() != 28+1 { 1076 t.Error("bad size of serialized record:", rr.len()) 1077 } 1078 } 1079 1080 // Test TXT record with chunk larger than 255 bytes, they should be split up, by the parser 1081 s := "" 1082 for i := 0; i < 255; i++ { 1083 s += "a" 1084 } 1085 s += "b" 1086 rr, err = NewRR(`test.local. 60 IN TXT "` + s + `"`) 1087 if err != nil { 1088 t.Error("failed to parse empty-string TXT record", err) 1089 } 1090 if rr.(*TXT).Txt[1] != "b" { 1091 t.Errorf("Txt should have two chunk, last one my be 'b', but is %s", rr.(*TXT).Txt[1]) 1092 } 1093} 1094 1095func TestTypeXXXX(t *testing.T) { 1096 _, err := NewRR("example.com IN TYPE1234 \\# 4 aabbccdd") 1097 if err != nil { 1098 t.Errorf("failed to parse TYPE1234 RR: %v", err) 1099 } 1100 _, err = NewRR("example.com IN TYPE655341 \\# 8 aabbccddaabbccdd") 1101 if err == nil { 1102 t.Errorf("this should not work, for TYPE655341") 1103 } 1104 _, err = NewRR("example.com IN TYPE1 \\# 4 0a000001") 1105 if err == nil { 1106 t.Errorf("this should not work") 1107 } 1108} 1109 1110func TestPTR(t *testing.T) { 1111 _, err := NewRR("144.2.0.192.in-addr.arpa. 900 IN PTR ilouse03146p0\\(.example.com.") 1112 if err != nil { 1113 t.Error("failed to parse ", err) 1114 } 1115} 1116 1117func TestDigit(t *testing.T) { 1118 tests := map[string]byte{ 1119 "miek\\000.nl. 100 IN TXT \"A\"": 0, 1120 "miek\\001.nl. 100 IN TXT \"A\"": 1, 1121 "miek\\254.nl. 100 IN TXT \"A\"": 254, 1122 "miek\\255.nl. 100 IN TXT \"A\"": 255, 1123 "miek\\256.nl. 100 IN TXT \"A\"": 0, 1124 "miek\\257.nl. 100 IN TXT \"A\"": 1, 1125 "miek\\004.nl. 100 IN TXT \"A\"": 4, 1126 } 1127 for s, i := range tests { 1128 r, err := NewRR(s) 1129 buf := make([]byte, 40) 1130 if err != nil { 1131 t.Fatalf("failed to parse %v", err) 1132 } 1133 PackRR(r, buf, 0, nil, false) 1134 if buf[5] != i { 1135 t.Fatalf("5 pos must be %d, is %d", i, buf[5]) 1136 } 1137 r1, _, _ := UnpackRR(buf, 0) 1138 if r1.Header().Ttl != 100 { 1139 t.Fatalf("TTL should %d, is %d", 100, r1.Header().Ttl) 1140 } 1141 } 1142} 1143 1144func TestParseRRSIGTimestamp(t *testing.T) { 1145 tests := map[string]bool{ 1146 `miek.nl. IN RRSIG SOA 8 2 43200 20140210031301 20140111031301 12051 miek.nl. MVZUyrYwq0iZhMFDDnVXD2BvuNiUJjSYlJAgzyAE6CF875BMvvZa+Sb0 RlSCL7WODQSQHhCx/fegHhVVF+Iz8N8kOLrmXD1+jO3Bm6Prl5UhcsPx WTBsg/kmxbp8sR1kvH4oZJtVfakG3iDerrxNaf0sQwhZzyfJQAqpC7pcBoc=`: true, 1147 `miek.nl. IN RRSIG SOA 8 2 43200 315565800 4102477800 12051 miek.nl. MVZUyrYwq0iZhMFDDnVXD2BvuNiUJjSYlJAgzyAE6CF875BMvvZa+Sb0 RlSCL7WODQSQHhCx/fegHhVVF+Iz8N8kOLrmXD1+jO3Bm6Prl5UhcsPx WTBsg/kmxbp8sR1kvH4oZJtVfakG3iDerrxNaf0sQwhZzyfJQAqpC7pcBoc=`: true, 1148 } 1149 for r := range tests { 1150 _, err := NewRR(r) 1151 if err != nil { 1152 t.Error(err) 1153 } 1154 } 1155} 1156 1157func TestTxtEqual(t *testing.T) { 1158 rr1 := new(TXT) 1159 rr1.Hdr = RR_Header{Name: ".", Rrtype: TypeTXT, Class: ClassINET, Ttl: 0} 1160 rr1.Txt = []string{"a\"a", "\"", "b"} 1161 rr2, _ := NewRR(rr1.String()) 1162 if rr1.String() != rr2.String() { 1163 // This is not an error, but keep this test. 1164 t.Errorf("these two TXT records should match:\n%s\n%s", rr1.String(), rr2.String()) 1165 } 1166} 1167 1168func TestTxtLong(t *testing.T) { 1169 rr1 := new(TXT) 1170 rr1.Hdr = RR_Header{Name: ".", Rrtype: TypeTXT, Class: ClassINET, Ttl: 0} 1171 // Make a long txt record, this breaks when sending the packet, 1172 // but not earlier. 1173 rr1.Txt = []string{"start-"} 1174 for i := 0; i < 200; i++ { 1175 rr1.Txt[0] += "start-" 1176 } 1177 str := rr1.String() 1178 if len(str) < len(rr1.Txt[0]) { 1179 t.Error("string conversion should work") 1180 } 1181} 1182 1183// Basically, don't crash. 1184func TestMalformedPackets(t *testing.T) { 1185 var packets = []string{ 1186 "0021641c0000000100000000000078787878787878787878787303636f6d0000100001", 1187 } 1188 1189 // com = 63 6f 6d 1190 for _, packet := range packets { 1191 data, _ := hex.DecodeString(packet) 1192 var msg Msg 1193 msg.Unpack(data) 1194 } 1195} 1196 1197type algorithm struct { 1198 name uint8 1199 bits int 1200} 1201 1202func TestNewPrivateKey(t *testing.T) { 1203 if testing.Short() { 1204 t.Skip("skipping test in short mode.") 1205 } 1206 algorithms := []algorithm{ 1207 {ECDSAP256SHA256, 256}, 1208 {ECDSAP384SHA384, 384}, 1209 {RSASHA1, 1024}, 1210 {RSASHA256, 2048}, 1211 {DSA, 1024}, 1212 {ED25519, 256}, 1213 } 1214 1215 for _, algo := range algorithms { 1216 key := new(DNSKEY) 1217 key.Hdr.Rrtype = TypeDNSKEY 1218 key.Hdr.Name = "miek.nl." 1219 key.Hdr.Class = ClassINET 1220 key.Hdr.Ttl = 14400 1221 key.Flags = 256 1222 key.Protocol = 3 1223 key.Algorithm = algo.name 1224 privkey, err := key.Generate(algo.bits) 1225 if err != nil { 1226 t.Fatal(err) 1227 } 1228 1229 newPrivKey, err := key.NewPrivateKey(key.PrivateKeyString(privkey)) 1230 if err != nil { 1231 t.Error(key.String()) 1232 t.Error(key.PrivateKeyString(privkey)) 1233 t.Fatal(err) 1234 } 1235 1236 switch newPrivKey := newPrivKey.(type) { 1237 case *rsa.PrivateKey: 1238 newPrivKey.Precompute() 1239 } 1240 1241 if !reflect.DeepEqual(privkey, newPrivKey) { 1242 t.Errorf("[%v] Private keys differ:\n%#v\n%#v", AlgorithmToString[algo.name], privkey, newPrivKey) 1243 } 1244 } 1245} 1246 1247// special input test 1248func TestNewRRSpecial(t *testing.T) { 1249 var ( 1250 rr RR 1251 err error 1252 expect string 1253 ) 1254 1255 rr, err = NewRR("; comment") 1256 expect = "" 1257 if err != nil { 1258 t.Errorf("unexpected err: %v", err) 1259 } 1260 if rr != nil { 1261 t.Errorf("unexpected result: [%s] != [%s]", rr, expect) 1262 } 1263 1264 rr, err = NewRR("") 1265 expect = "" 1266 if err != nil { 1267 t.Errorf("unexpected err: %v", err) 1268 } 1269 if rr != nil { 1270 t.Errorf("unexpected result: [%s] != [%s]", rr, expect) 1271 } 1272 1273 rr, err = NewRR("$ORIGIN foo.") 1274 expect = "" 1275 if err != nil { 1276 t.Errorf("unexpected err: %v", err) 1277 } 1278 if rr != nil { 1279 t.Errorf("unexpected result: [%s] != [%s]", rr, expect) 1280 } 1281 1282 rr, err = NewRR(" ") 1283 expect = "" 1284 if err != nil { 1285 t.Errorf("unexpected err: %v", err) 1286 } 1287 if rr != nil { 1288 t.Errorf("unexpected result: [%s] != [%s]", rr, expect) 1289 } 1290 1291 rr, err = NewRR("\n") 1292 expect = "" 1293 if err != nil { 1294 t.Errorf("unexpected err: %v", err) 1295 } 1296 if rr != nil { 1297 t.Errorf("unexpected result: [%s] != [%s]", rr, expect) 1298 } 1299 1300 rr, err = NewRR("foo. A 1.1.1.1\nbar. A 2.2.2.2") 1301 expect = "foo.\t3600\tIN\tA\t1.1.1.1" 1302 if err != nil { 1303 t.Errorf("unexpected err: %v", err) 1304 } 1305 if rr == nil || rr.String() != expect { 1306 t.Errorf("unexpected result: [%s] != [%s]", rr, expect) 1307 } 1308} 1309 1310func TestPrintfVerbsRdata(t *testing.T) { 1311 x, _ := NewRR("www.miek.nl. IN MX 20 mx.miek.nl.") 1312 if Field(x, 1) != "20" { 1313 t.Errorf("should be 20") 1314 } 1315 if Field(x, 2) != "mx.miek.nl." { 1316 t.Errorf("should be mx.miek.nl.") 1317 } 1318 1319 x, _ = NewRR("www.miek.nl. IN A 127.0.0.1") 1320 if Field(x, 1) != "127.0.0.1" { 1321 t.Errorf("should be 127.0.0.1") 1322 } 1323 1324 x, _ = NewRR("www.miek.nl. IN AAAA ::1") 1325 if Field(x, 1) != "::1" { 1326 t.Errorf("should be ::1") 1327 } 1328 1329 x, _ = NewRR("www.miek.nl. IN NSEC a.miek.nl. A NS SOA MX AAAA") 1330 if Field(x, 1) != "a.miek.nl." { 1331 t.Errorf("should be a.miek.nl.") 1332 } 1333 if Field(x, 2) != "A NS SOA MX AAAA" { 1334 t.Errorf("should be A NS SOA MX AAAA") 1335 } 1336 1337 x, _ = NewRR("www.miek.nl. IN TXT \"first\" \"second\"") 1338 if Field(x, 1) != "first second" { 1339 t.Errorf("should be first second") 1340 } 1341 if Field(x, 0) != "" { 1342 t.Errorf("should be empty") 1343 } 1344} 1345 1346func TestParseTokenOverflow(t *testing.T) { 1347 _, err := NewRR("_443._tcp.example.org. IN TLSA 0 0 0 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") 1348 if err == nil { 1349 t.Fatalf("token overflow should return an error") 1350 } 1351} 1352 1353func TestParseTLSA(t *testing.T) { 1354 lt := []string{ 1355 "_443._tcp.example.org.\t3600\tIN\tTLSA\t1 1 1 c22be239f483c08957bc106219cc2d3ac1a308dfbbdd0a365f17b9351234cf00", 1356 "_443._tcp.example.org.\t3600\tIN\tTLSA\t2 1 2 4e85f45179e9cd6e0e68e2eb5be2e85ec9b92d91c609caf3ef0315213e3f92ece92c38397a607214de95c7fadc0ad0f1c604a469a0387959745032c0d51492f3", 1357 "_443._tcp.example.org.\t3600\tIN\tTLSA\t3 0 2 69ec8d2277360b215d0cd956b0e2747108dff34b27d461a41c800629e38ee6c2d1230cc9e8e36711330adc6766e6ff7c5fbb37f106f248337c1a20ad682888d2", 1358 } 1359 for _, o := range lt { 1360 rr, err := NewRR(o) 1361 if err != nil { 1362 t.Error("failed to parse RR: ", err) 1363 continue 1364 } 1365 if rr.String() != o { 1366 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", o, o, rr.String()) 1367 } 1368 } 1369} 1370 1371func TestParseSMIMEA(t *testing.T) { 1372 lt := map[string]string{ 1373 "2e85e1db3e62be6ea._smimecert.example.com.\t3600\tIN\tSMIMEA\t1 1 2 bd80f334566928fc18f58df7e4928c1886f48f71ca3fd41cd9b1854aca7c2180aaacad2819612ed68e7bd3701cc39be7f2529b017c0bc6a53e8fb3f0c7d48070": "2e85e1db3e62be6ea._smimecert.example.com.\t3600\tIN\tSMIMEA\t1 1 2 bd80f334566928fc18f58df7e4928c1886f48f71ca3fd41cd9b1854aca7c2180aaacad2819612ed68e7bd3701cc39be7f2529b017c0bc6a53e8fb3f0c7d48070", 1374 "2e85e1db3e62be6ea._smimecert.example.com.\t3600\tIN\tSMIMEA\t0 0 1 cdcf0fc66b182928c5217ddd42c826983f5a4b94160ee6c1c9be62d38199f710": "2e85e1db3e62be6ea._smimecert.example.com.\t3600\tIN\tSMIMEA\t0 0 1 cdcf0fc66b182928c5217ddd42c826983f5a4b94160ee6c1c9be62d38199f710", 1375 "2e85e1db3e62be6ea._smimecert.example.com.\t3600\tIN\tSMIMEA\t3 0 2 499a1eda2af8828b552cdb9d80c3744a25872fddd73f3898d8e4afa3549595d2dd4340126e759566fe8c26b251fa0c887ba4869f011a65f7e79967c2eb729f5b": "2e85e1db3e62be6ea._smimecert.example.com.\t3600\tIN\tSMIMEA\t3 0 2 499a1eda2af8828b552cdb9d80c3744a25872fddd73f3898d8e4afa3549595d2dd4340126e759566fe8c26b251fa0c887ba4869f011a65f7e79967c2eb729f5b", 1376 "2e85e1db3e62be6eb._smimecert.example.com.\t3600\tIN\tSMIMEA\t3 0 2 499a1eda2af8828b552cdb9d80c3744a25872fddd73f3898d8e4afa3549595d2dd4340126e759566fe8 c26b251fa0c887ba4869f01 1a65f7e79967c2eb729f5b": "2e85e1db3e62be6eb._smimecert.example.com.\t3600\tIN\tSMIMEA\t3 0 2 499a1eda2af8828b552cdb9d80c3744a25872fddd73f3898d8e4afa3549595d2dd4340126e759566fe8c26b251fa0c887ba4869f011a65f7e79967c2eb729f5b", 1377 } 1378 for i, o := range lt { 1379 rr, err := NewRR(i) 1380 if err != nil { 1381 t.Error("failed to parse RR: ", err) 1382 continue 1383 } 1384 if rr.String() != o { 1385 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", o, o, rr.String()) 1386 } 1387 } 1388} 1389 1390func TestParseSSHFP(t *testing.T) { 1391 lt := []string{ 1392 "test.example.org.\t300\tSSHFP\t1 2 (\n" + 1393 "\t\t\t\t\tBC6533CDC95A79078A39A56EA7635984ED655318ADA9\n" + 1394 "\t\t\t\t\tB6159E30723665DA95BB )", 1395 "test.example.org.\t300\tSSHFP\t1 2 ( BC6533CDC 95A79078A39A56EA7635984ED655318AD A9B6159E3072366 5DA95BB )", 1396 } 1397 result := "test.example.org.\t300\tIN\tSSHFP\t1 2 BC6533CDC95A79078A39A56EA7635984ED655318ADA9B6159E30723665DA95BB" 1398 for _, o := range lt { 1399 rr, err := NewRR(o) 1400 if err != nil { 1401 t.Error("failed to parse RR: ", err) 1402 continue 1403 } 1404 if rr.String() != result { 1405 t.Errorf("`%s' should be equal to\n\n`%s', but is \n`%s'", o, result, rr.String()) 1406 } 1407 } 1408} 1409 1410func TestParseHINFO(t *testing.T) { 1411 dt := map[string]string{ 1412 "example.net. HINFO A B": "example.net. 3600 IN HINFO \"A\" \"B\"", 1413 "example.net. HINFO \"A\" \"B\"": "example.net. 3600 IN HINFO \"A\" \"B\"", 1414 "example.net. HINFO A B C D E F": "example.net. 3600 IN HINFO \"A\" \"B C D E F\"", 1415 "example.net. HINFO AB": "example.net. 3600 IN HINFO \"AB\" \"\"", 1416 // "example.net. HINFO PC-Intel-700mhz \"Redhat Linux 7.1\"": "example.net. 3600 IN HINFO \"PC-Intel-700mhz\" \"Redhat Linux 7.1\"", 1417 // This one is recommended in Pro Bind book http://www.zytrax.com/books/dns/ch8/hinfo.html 1418 // but effectively, even Bind would replace it to correctly formed text when you AXFR 1419 // TODO: remove this set of comments or figure support for quoted/unquoted combinations in endingToTxtSlice function 1420 } 1421 for i, o := range dt { 1422 rr, err := NewRR(i) 1423 if err != nil { 1424 t.Error("failed to parse RR: ", err) 1425 continue 1426 } 1427 if rr.String() != o { 1428 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 1429 } 1430 } 1431} 1432 1433func TestParseCAA(t *testing.T) { 1434 lt := map[string]string{ 1435 "example.net. CAA 0 issue \"symantec.com\"": "example.net.\t3600\tIN\tCAA\t0 issue \"symantec.com\"", 1436 "example.net. CAA 0 issuewild \"symantec.com; stuff\"": "example.net.\t3600\tIN\tCAA\t0 issuewild \"symantec.com; stuff\"", 1437 "example.net. CAA 128 tbs \"critical\"": "example.net.\t3600\tIN\tCAA\t128 tbs \"critical\"", 1438 "example.net. CAA 2 auth \"0>09\\006\\010+\\006\\001\\004\\001\\214y\\002\\003\\001\\006\\009`\\134H\\001e\\003\\004\\002\\001\\004 y\\209\\012\\221r\\220\\156Q\\218\\150\\150{\\166\\245:\\231\\182%\\157:\\133\\179}\\1923r\\238\\151\\255\\128q\\145\\002\\001\\000\"": "example.net.\t3600\tIN\tCAA\t2 auth \"0>09\\006\\010+\\006\\001\\004\\001\\214y\\002\\003\\001\\006\\009`\\134H\\001e\\003\\004\\002\\001\\004 y\\209\\012\\221r\\220\\156Q\\218\\150\\150{\\166\\245:\\231\\182%\\157:\\133\\179}\\1923r\\238\\151\\255\\128q\\145\\002\\001\\000\"", 1439 "example.net. TYPE257 0 issue \"symantec.com\"": "example.net.\t3600\tIN\tCAA\t0 issue \"symantec.com\"", 1440 } 1441 for i, o := range lt { 1442 rr, err := NewRR(i) 1443 if err != nil { 1444 t.Error("failed to parse RR: ", err) 1445 continue 1446 } 1447 if rr.String() != o { 1448 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 1449 } 1450 } 1451} 1452 1453func TestPackCAA(t *testing.T) { 1454 m := new(Msg) 1455 record := new(CAA) 1456 record.Hdr = RR_Header{Name: "example.com.", Rrtype: TypeCAA, Class: ClassINET, Ttl: 0} 1457 record.Tag = "issue" 1458 record.Value = "symantec.com" 1459 record.Flag = 1 1460 1461 m.Answer = append(m.Answer, record) 1462 bytes, err := m.Pack() 1463 if err != nil { 1464 t.Fatalf("failed to pack msg: %v", err) 1465 } 1466 if err := m.Unpack(bytes); err != nil { 1467 t.Fatalf("failed to unpack msg: %v", err) 1468 } 1469 if len(m.Answer) != 1 { 1470 t.Fatalf("incorrect number of answers unpacked") 1471 } 1472 rr := m.Answer[0].(*CAA) 1473 if rr.Tag != "issue" { 1474 t.Fatalf("invalid tag for unpacked answer") 1475 } else if rr.Value != "symantec.com" { 1476 t.Fatalf("invalid value for unpacked answer") 1477 } else if rr.Flag != 1 { 1478 t.Fatalf("invalid flag for unpacked answer") 1479 } 1480} 1481 1482func TestParseURI(t *testing.T) { 1483 lt := map[string]string{ 1484 "_http._tcp. IN URI 10 1 \"http://www.example.com/path\"": "_http._tcp.\t3600\tIN\tURI\t10 1 \"http://www.example.com/path\"", 1485 "_http._tcp. IN URI 10 1 \"\"": "_http._tcp.\t3600\tIN\tURI\t10 1 \"\"", 1486 } 1487 for i, o := range lt { 1488 rr, err := NewRR(i) 1489 if err != nil { 1490 t.Error("failed to parse RR: ", err) 1491 continue 1492 } 1493 if rr.String() != o { 1494 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", i, o, rr.String()) 1495 } 1496 } 1497} 1498 1499func TestParseAVC(t *testing.T) { 1500 avcs := map[string]string{ 1501 `example.org. IN AVC "app-name:WOLFGANG|app-class:OAM|business=yes"`: `example.org. 3600 IN AVC "app-name:WOLFGANG|app-class:OAM|business=yes"`, 1502 } 1503 for avc, o := range avcs { 1504 rr, err := NewRR(avc) 1505 if err != nil { 1506 t.Error("failed to parse RR: ", err) 1507 continue 1508 } 1509 if rr.String() != o { 1510 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", avc, o, rr.String()) 1511 } 1512 } 1513} 1514 1515func TestParseCSYNC(t *testing.T) { 1516 syncs := map[string]string{ 1517 `example.com. 3600 IN CSYNC 66 3 A NS AAAA`: `example.com. 3600 IN CSYNC 66 3 A NS AAAA`, 1518 } 1519 for s, o := range syncs { 1520 rr, err := NewRR(s) 1521 if err != nil { 1522 t.Error("failed to parse RR: ", err) 1523 continue 1524 } 1525 if rr.String() != o { 1526 t.Errorf("`%s' should be equal to\n`%s', but is `%s'", s, o, rr.String()) 1527 } 1528 } 1529} 1530 1531func TestParseBadNAPTR(t *testing.T) { 1532 // Should look like: mplus.ims.vodafone.com. 3600 IN NAPTR 10 100 "S" "SIP+D2U" "" _sip._udp.mplus.ims.vodafone.com. 1533 naptr := `mplus.ims.vodafone.com. 3600 IN NAPTR 10 100 S SIP+D2U _sip._udp.mplus.ims.vodafone.com.` 1534 _, err := NewRR(naptr) // parse fails, we should not have leaked a goroutine. 1535 if err == nil { 1536 t.Fatalf("parsing NAPTR should have failed: %s", naptr) 1537 } 1538 if err := goroutineLeaked(); err != nil { 1539 t.Errorf("leaked goroutines: %s", err) 1540 } 1541} 1542 1543func TestUnbalancedParens(t *testing.T) { 1544 sig := `example.com. 3600 IN RRSIG MX 15 2 3600 ( 1545 1440021600 1438207200 3613 example.com. ( 1546 oL9krJun7xfBOIWcGHi7mag5/hdZrKWw15jPGrHpjQeRAvTdszaPD+QLs3f 1547 x8A4M3e23mRZ9VrbpMngwcrqNAg== )` 1548 _, err := NewRR(sig) 1549 if err == nil { 1550 t.Fatalf("failed to detect extra opening brace") 1551 } 1552} 1553 1554func TestBad(t *testing.T) { 1555 tests := []string{ 1556 `" TYPE257 9 1E12\x00\x105"`, 1557 `" TYPE256 9 5"`, 1558 `" TYPE257 0\"00000000000000400000000000000000000\x00\x10000000000000000000000000000000000 9 l\x16\x01\x005266"`, 1559 } 1560 for i := range tests { 1561 s, err := strconv.Unquote(tests[i]) 1562 if err != nil { 1563 t.Fatalf("failed to unquote: %q: %s", tests[i], err) 1564 } 1565 if _, err = NewRR(s); err == nil { 1566 t.Errorf("correctly parsed %q", s) 1567 } 1568 } 1569} 1570