diff options
Diffstat (limited to 'vendor/github.com/google/gopacket/layers/dns_test.go')
| -rw-r--r-- | vendor/github.com/google/gopacket/layers/dns_test.go | 833 |
1 files changed, 833 insertions, 0 deletions
diff --git a/vendor/github.com/google/gopacket/layers/dns_test.go b/vendor/github.com/google/gopacket/layers/dns_test.go new file mode 100644 index 0000000..264513b --- /dev/null +++ b/vendor/github.com/google/gopacket/layers/dns_test.go @@ -0,0 +1,833 @@ +// Copyright 2012, Google, Inc. All rights reserved. +// +// Use of this source code is governed by a BSD-style license +// that can be found in the LICENSE file in the root of the source +// tree. + +package layers + +import ( + "bytes" + "net" + "strings" + "testing" + + "github.com/google/gopacket" +) + +// testPacketDNSRegression is the packet: +// 11:08:05.708342 IP 109.194.160.4.57766 > 95.211.92.14.53: 63000% [1au] A? picslife.ru. (40) +// 0x0000: 0022 19b6 7e22 000f 35bb 0b40 0800 4500 ."..~"..5..@..E. +// 0x0010: 0044 89c4 0000 3811 2f3d 6dc2 a004 5fd3 .D....8./=m..._. +// 0x0020: 5c0e e1a6 0035 0030 a597 f618 0010 0001 \....5.0........ +// 0x0030: 0000 0000 0001 0870 6963 736c 6966 6502 .......picslife. +// 0x0040: 7275 0000 0100 0100 0029 1000 0000 8000 ru.......)...... +// 0x0050: 0000 .. +var testPacketDNSRegression = []byte{ + 0x00, 0x22, 0x19, 0xb6, 0x7e, 0x22, 0x00, 0x0f, 0x35, 0xbb, 0x0b, 0x40, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x44, 0x89, 0xc4, 0x00, 0x00, 0x38, 0x11, 0x2f, 0x3d, 0x6d, 0xc2, 0xa0, 0x04, 0x5f, 0xd3, + 0x5c, 0x0e, 0xe1, 0xa6, 0x00, 0x35, 0x00, 0x30, 0xa5, 0x97, 0xf6, 0x18, 0x00, 0x10, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x08, 0x70, 0x69, 0x63, 0x73, 0x6c, 0x69, 0x66, 0x65, 0x02, + 0x72, 0x75, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x29, 0x10, 0x00, 0x00, 0x00, 0x80, 0x00, + 0x00, 0x00, +} + +func TestPacketDNSRegression(t *testing.T) { + p := gopacket.NewPacket(testPacketDNSRegression, LinkTypeEthernet, testDecodeOptions) + if p.ErrorLayer() != nil { + t.Error("Failed to decode packet:", p.ErrorLayer().Error()) + } + checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv4, LayerTypeUDP, LayerTypeDNS}, t) +} +func BenchmarkDecodePacketDNSRegression(b *testing.B) { + for i := 0; i < b.N; i++ { + gopacket.NewPacket(testPacketDNSRegression, LinkTypeEthernet, gopacket.NoCopy) + } +} + +// response to `dig TXT google.com` over IPv4 link: +var testParseDNSTypeTXTValue = `v=spf1 include:_spf.google.com ~all` +var testParseDNSTypeTXT = []byte{ + 0x02, 0x00, 0x00, 0x00, // PF_INET + 0x45, 0x00, 0x00, 0x73, 0x00, 0x00, 0x40, 0x00, 0x39, 0x11, 0x64, 0x98, 0xd0, 0x43, 0xde, 0xde, + 0x0a, 0xba, 0x23, 0x06, 0x00, 0x35, 0x81, 0xb2, 0x00, 0x5f, 0xdc, 0xb5, 0x98, 0x71, 0x81, 0x80, + 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x03, + 0x63, 0x6f, 0x6d, 0x00, 0x00, 0x10, 0x00, 0x01, 0xc0, 0x0c, 0x00, 0x10, 0x00, 0x01, 0x00, 0x00, + 0x0e, 0x10, 0x00, 0x24, 0x23, 0x76, 0x3d, 0x73, 0x70, 0x66, 0x31, 0x20, 0x69, 0x6e, 0x63, 0x6c, + 0x75, 0x64, 0x65, 0x3a, 0x5f, 0x73, 0x70, 0x66, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, + 0x63, 0x6f, 0x6d, 0x20, 0x7e, 0x61, 0x6c, 0x6c, 0x00, 0x00, 0x29, 0x10, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, +} + +func TestParseDNSTypeTXT(t *testing.T) { + p := gopacket.NewPacket(testParseDNSTypeTXT, LinkTypeNull, testDecodeOptions) + if p.ErrorLayer() != nil { + t.Error("Failed to decode packet:", p.ErrorLayer().Error()) + } + checkLayers(p, []gopacket.LayerType{LayerTypeLoopback, LayerTypeIPv4, LayerTypeUDP, LayerTypeDNS}, t) + answers := p.Layer(LayerTypeDNS).(*DNS).Answers + if len(answers) != 1 { + t.Error("Failed to parse 1 DNS answer") + } + if len(answers[0].TXTs) != 1 { + t.Error("Failed to parse 1 TXT record") + } + txt := string(answers[0].TXTs[0]) + if txt != testParseDNSTypeTXTValue { + t.Errorf("Incorrect TXT value, expected %q, got %q", testParseDNSTypeTXTValue, txt) + } +} + +func testQuestionEqual(t *testing.T, i int, exp, got DNSQuestion) { + if !bytes.Equal(exp.Name, got.Name) { + t.Errorf("expected Questions[%d].Name = %v, got %v", i, string(exp.Name), string(got.Name)) + } + if exp.Type != got.Type { + t.Errorf("expected Questions[%d].Type = %v, got %v", i, exp.Type, got.Type) + } + if exp.Class != got.Class { + t.Errorf("expected Questions[%d].Class = %v, got %v", i, exp.Class, got.Class) + } +} + +func testResourceEqual(t *testing.T, i int, name string, exp, got DNSResourceRecord) { + if !bytes.Equal(exp.Name, got.Name) { + t.Errorf("expected %s[%d].Name = %v, got %v", name, i, string(exp.Name), string(got.Name)) + } + + if exp.Type != got.Type { + t.Errorf("expected %s[%d].Type = %v, got %v", name, i, exp.Type, got.Type) + } + + if exp.Class != got.Class { + t.Errorf("expected %s[%d].Class = %v, got %v", name, i, exp.Class, got.Class) + } + + if exp.TTL != got.TTL { + t.Errorf("expected %s[%d].TTL = %v, got %v", name, i, exp.TTL, got.TTL) + } + if exp.DataLength != got.DataLength { + t.Errorf("expected %s[%d].DataLength = %v, got %v", name, i, exp.DataLength, got.DataLength) + } + + // we don't check .Data + + if !exp.IP.Equal(got.IP) { + t.Errorf("expected %s[%d].IP = %v, got %v", name, i, exp.IP, got.IP) + } + if !bytes.Equal(exp.NS, got.NS) { + t.Errorf("expected %s[%d].NS = %v, got %v", name, i, exp.NS, got.NS) + } + if !bytes.Equal(exp.CNAME, got.CNAME) { + t.Errorf("expected %s[%d].CNAME = %v, got %v", name, i, exp.CNAME, got.CNAME) + } + if !bytes.Equal(exp.PTR, got.PTR) { + t.Errorf("expected %s[%d].PTR = %v, got %v", name, i, exp.PTR, got.PTR) + } + if len(exp.TXTs) != len(got.TXTs) { + t.Errorf("expected %s[%d].TXTs = %v, got %v", name, i, exp.TXTs, got.TXTs) + } + for j := range exp.TXTs { + if !bytes.Equal(exp.TXTs[j], got.TXTs[j]) { + t.Errorf("expected %s[%d].TXTs[%d] = %v, got %v", name, i, j, exp.TXTs[j], got.TXTs[j]) + } + } + + // SOA + if !bytes.Equal(exp.SOA.MName, got.SOA.MName) { + t.Errorf("expected %s[%d].SOA.MName = %v, got %v", name, i, exp.SOA.MName, got.SOA.MName) + } + if !bytes.Equal(exp.SOA.RName, got.SOA.RName) { + t.Errorf("expected %s[%d].SOA.RName = %v, got %v", name, i, exp.SOA.RName, got.SOA.RName) + } + if exp.SOA.Serial != got.SOA.Serial { + t.Errorf("expected %s[%d].SOA.Serial = %v, got %v", name, i, exp.SOA.Serial, got.SOA.Serial) + } + if exp.SOA.Refresh != got.SOA.Refresh { + t.Errorf("expected %s[%d].SOA.Refresh = %v, got %v", name, i, exp.SOA.Refresh, got.SOA.Refresh) + } + if exp.SOA.Retry != got.SOA.Retry { + t.Errorf("expected %s[%d].SOA.Retry = %v, got %v", name, i, exp.SOA.Retry, got.SOA.Retry) + } + if exp.SOA.Expire != got.SOA.Expire { + t.Errorf("expected %s[%d].SOA.Expire = %v, got %v", name, i, exp.SOA.Expire, got.SOA.Expire) + } + if exp.SOA.Minimum != got.SOA.Minimum { + t.Errorf("expected %s[%d].SOA.Minimum = %v, got %v", name, i, exp.SOA.Minimum, got.SOA.Minimum) + } + + // SRV + if !bytes.Equal(exp.SRV.Name, got.SRV.Name) { + t.Errorf("expected %s[%d].SRV.Name = %v, got %v", name, i, exp.SRV.Name, got.SRV.Name) + } + if exp.SRV.Weight != got.SRV.Weight { + t.Errorf("expected %s[%d].SRV.Weight = %v, got %v", name, i, exp.SRV.Weight, got.SRV.Weight) + } + if exp.SRV.Port != got.SRV.Port { + t.Errorf("expected %s[%d].SRV.Port = %v, got %v", name, i, exp.SRV.Port, got.SRV.Port) + } + // MX + if !bytes.Equal(exp.MX.Name, got.MX.Name) { + t.Errorf("expected %s[%d].MX.Name = %v, got %v", name, i, exp.MX.Name, got.MX.Name) + } + if exp.MX.Preference != got.MX.Preference { + t.Errorf("expected %s[%d].MX.Preference = %v, got %v", name, i, exp.MX.Preference, got.MX.Preference) + } +} + +func testDNSEqual(t *testing.T, exp, got *DNS) { + if exp.ID != got.ID { + t.Errorf("expected ID = %v, got %v", exp.ID, got.ID) + } + if exp.AA != got.AA { + t.Errorf("expected AA = %v, got %v", exp.AA, got.AA) + } + if exp.OpCode != got.OpCode { + t.Errorf("expected OpCode = %v, got %v", exp.OpCode, got.OpCode) + } + if exp.AA != got.AA { + t.Errorf("expected AA = %v, got %v", exp.AA, got.AA) + } + if exp.TC != got.TC { + t.Errorf("expected TC = %v, got %v", exp.TC, got.TC) + } + if exp.RD != got.RD { + t.Errorf("expected RD = %v, got %v", exp.RD, got.RD) + } + if exp.RA != got.RA { + t.Errorf("expected RA = %v, got %v", exp.RA, got.RA) + } + if exp.Z != got.Z { + t.Errorf("expected Z = %v, got %v", exp.Z, got.Z) + } + if exp.ResponseCode != got.ResponseCode { + t.Errorf("expected ResponseCode = %v, got %v", exp.ResponseCode, got.ResponseCode) + } + if exp.QDCount != got.QDCount { + t.Errorf("expected QDCount = %v, got %v", exp.QDCount, got.QDCount) + } + if exp.ANCount != got.ANCount { + t.Errorf("expected ANCount = %v, got %v", exp.ANCount, got.ANCount) + } + if exp.ANCount != got.ANCount { + t.Errorf("expected ANCount = %v, got %v", exp.ANCount, got.ANCount) + } + if exp.NSCount != got.NSCount { + t.Errorf("expected NSCount = %v, got %v", exp.NSCount, got.NSCount) + } + if exp.ARCount != got.ARCount { + t.Errorf("expected ARCount = %v, got %v", exp.ARCount, got.ARCount) + } + + if len(exp.Questions) != len(got.Questions) { + t.Errorf("expected %d Questions, got %d", len(exp.Questions), len(got.Questions)) + } + for i := range exp.Questions { + testQuestionEqual(t, i, exp.Questions[i], got.Questions[i]) + } + + if len(exp.Answers) != len(got.Answers) { + t.Errorf("expected %d Answers, got %d", len(exp.Answers), len(got.Answers)) + } + for i := range exp.Answers { + testResourceEqual(t, i, "Answers", exp.Answers[i], got.Answers[i]) + } + + if len(exp.Authorities) != len(got.Authorities) { + t.Errorf("expected %d Answers, got %d", len(exp.Authorities), len(got.Authorities)) + } + for i := range exp.Authorities { + testResourceEqual(t, i, "Authorities", exp.Authorities[i], got.Authorities[i]) + } + + if len(exp.Additionals) != len(got.Additionals) { + t.Errorf("expected %d Additionals, got %d", len(exp.Additionals), len(got.Additionals)) + } + for i := range exp.Additionals { + testResourceEqual(t, i, "Additionals", exp.Additionals[i], got.Additionals[i]) + } +} + +func TestDNSEncodeQuery(t *testing.T) { + dns := &DNS{ID: 1234, OpCode: DNSOpCodeQuery, RD: true} + dns.Questions = append(dns.Questions, + DNSQuestion{ + Name: []byte("example1.com"), + Type: DNSTypeA, + Class: DNSClassIN, + }) + + dns.Questions = append(dns.Questions, + DNSQuestion{ + Name: []byte("example2.com"), + Type: DNSTypeA, + Class: DNSClassIN, + }) + + buf := gopacket.NewSerializeBuffer() + opts := gopacket.SerializeOptions{FixLengths: true} + err := gopacket.SerializeLayers(buf, opts, dns) + if err != nil { + t.Fatal(err) + } + if int(dns.QDCount) != len(dns.Questions) { + t.Errorf("fix lengths did not adjust QDCount, expected %d got %d", len(dns.Questions), dns.QDCount) + } + + p2 := gopacket.NewPacket(buf.Bytes(), LayerTypeDNS, testDecodeOptions) + dns2 := p2.Layer(LayerTypeDNS).(*DNS) + testDNSEqual(t, dns, dns2) +} + +func TestDNSEncodeResponse(t *testing.T) { + dns := &DNS{ID: 1234, QR: true, OpCode: DNSOpCodeQuery, + AA: true, RD: true, RA: true} + dns.Questions = append(dns.Questions, + DNSQuestion{ + Name: []byte("example1.com"), + Type: DNSTypeA, + Class: DNSClassIN, + }) + dns.Questions = append(dns.Questions, + DNSQuestion{ + Name: []byte("www.example2.com"), + Type: DNSTypeAAAA, + Class: DNSClassIN, + }) + + dns.Answers = append(dns.Answers, + DNSResourceRecord{ + Name: []byte("example1.com"), + Type: DNSTypeA, + Class: DNSClassIN, + TTL: 1024, + IP: net.IP([]byte{1, 2, 3, 4}), + }) + + dns.Answers = append(dns.Answers, + DNSResourceRecord{ + Name: []byte("www.example2.com"), + Type: DNSTypeAAAA, + Class: DNSClassIN, + TTL: 1024, + IP: net.IP([]byte{5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4}), + }) + + dns.Answers = append(dns.Answers, + DNSResourceRecord{ + Name: []byte("www.example2.com"), + Type: DNSTypeCNAME, + Class: DNSClassIN, + TTL: 1024, + CNAME: []byte("example2.com"), + }) + + buf := gopacket.NewSerializeBuffer() + opts := gopacket.SerializeOptions{FixLengths: true} + err := gopacket.SerializeLayers(buf, opts, dns) + if err != nil { + t.Fatal(err) + } + if int(dns.ANCount) != len(dns.Answers) { + t.Errorf("fix lengths did not adjust ANCount, expected %d got %d", len(dns.Answers), dns.ANCount) + } + for i, a := range dns.Answers { + if a.DataLength == 0 { + t.Errorf("fix lengths did not adjust Answers[%d].DataLength", i) + } + } + + p2 := gopacket.NewPacket(buf.Bytes(), LayerTypeDNS, testDecodeOptions) + dns2 := p2.Layer(LayerTypeDNS).(*DNS) + testDNSEqual(t, dns, dns2) +} + +// testDNSMalformedPacket is the packet: +// 10:30:00.389666 IP 10.77.43.131.60718 > 10.1.0.17.53: 18245 updateD [b2&3=0x5420] [18516a] [12064q] [21584n] [12081au][|domain] +// 0x0000: 0000 0101 0000 4e96 1476 afa1 0800 4500 ......N..v....E. +// 0x0010: 0039 d431 0000 f311 b3a0 0a4d 2b83 0a01 .9.1.......M+... +// 0x0020: 0011 ed2e 0035 0025 0832 4745 5420 2f20 .....5.%.2GET./. +// 0x0030: 4854 5450 2f31 2e31 0d0a 486f 7374 3a20 HTTP/1.1..Host:. +// 0x0040: 7777 770d 0a0d 0a www.... +var testDNSMalformedPacket = []byte{ + 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x4e, 0x96, 0x14, 0x76, 0xaf, 0xa1, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x39, 0xd4, 0x31, 0x00, 0x00, 0xf3, 0x11, 0xb3, 0xa0, 0x0a, 0x4d, 0x2b, 0x83, 0x0a, 0x01, + 0x00, 0x11, 0xed, 0x2e, 0x00, 0x35, 0x00, 0x25, 0x08, 0x32, 0x47, 0x45, 0x54, 0x20, 0x2f, 0x20, + 0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, 0x2e, 0x31, 0x0d, 0x0a, 0x48, 0x6f, 0x73, 0x74, 0x3a, 0x20, + 0x77, 0x77, 0x77, 0x0d, 0x0a, 0x0d, 0x0a, +} + +func TestDNSMalformedPacket(t *testing.T) { + p := gopacket.NewPacket(testDNSMalformedPacket, LinkTypeEthernet, testDecodeOptions) + if errLayer := p.ErrorLayer(); errLayer == nil { + t.Error("No error layer on invalid DNS name") + } else if err := errLayer.Error(); !strings.Contains(err.Error(), "invalid index") { + t.Errorf("unexpected error message: %v", err) + } +} + +// testDNSMalformedPacket2 is the packet: +// 15:14:42.056054 IP 10.77.0.245.53 > 10.1.0.45.38769: 12625 zoneInit YXRRSet- [49833q],[|domain] +// 0x0000: 0055 22af c637 0022 55ac deac 0800 4500 .U"..7."U.....E. +// 0x0010: 0079 3767 4000 3911 f49d 0a4d 00f5 0a01 .y7g@.9....M.... +// 0x0020: 002d 0035 9771 0065 6377 3151 f057 c2a9 .-.5.q.ecw1Q.W.. +// 0x0030: fc6e e86a beb0 f7d4 8599 373e b5f8 9db2 .n.j......7>.... +// 0x0040: a399 21a1 9762 def1 def4 f5ab 5675 023e ..!..b......Vu.> +// 0x0050: c9ca 304f 178a c2ad f2fc 677a 0e4c b892 ..0O......gz.L.. +// 0x0060: ab71 09bb 1ea4 f7c4 fe47 7a39 868b 29a0 .q.......Gz9..). +// 0x0070: 62c4 d184 5b4e 8817 4cc0 d1d0 d430 11d3 b...[N..L....0.. +// 0x0080: d147 543f afc7 1a .GT?... +var testDNSMalformedPacket2 = []byte{ + 0x00, 0x55, 0x22, 0xaf, 0xc6, 0x37, 0x00, 0x22, 0x55, 0xac, 0xde, 0xac, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x79, 0x37, 0x67, 0x40, 0x00, 0x39, 0x11, 0xf4, 0x9d, 0x0a, 0x4d, 0x00, 0xf5, 0x0a, 0x01, + 0x00, 0x2d, 0x00, 0x35, 0x97, 0x71, 0x00, 0x65, 0x63, 0x77, 0x31, 0x51, 0xf0, 0x57, 0xc2, 0xa9, + 0xfc, 0x6e, 0xe8, 0x6a, 0xbe, 0xb0, 0xf7, 0xd4, 0x85, 0x99, 0x37, 0x3e, 0xb5, 0xf8, 0x9d, 0xb2, + 0xa3, 0x99, 0x21, 0xa1, 0x97, 0x62, 0xde, 0xf1, 0xde, 0xf4, 0xf5, 0xab, 0x56, 0x75, 0x02, 0x3e, + 0xc9, 0xca, 0x30, 0x4f, 0x17, 0x8a, 0xc2, 0xad, 0xf2, 0xfc, 0x67, 0x7a, 0x0e, 0x4c, 0xb8, 0x92, + 0xab, 0x71, 0x09, 0xbb, 0x1e, 0xa4, 0xf7, 0xc4, 0xfe, 0x47, 0x7a, 0x39, 0x86, 0x8b, 0x29, 0xa0, + 0x62, 0xc4, 0xd1, 0x84, 0x5b, 0x4e, 0x88, 0x17, 0x4c, 0xc0, 0xd1, 0xd0, 0xd4, 0x30, 0x11, 0xd3, + 0xd1, 0x47, 0x54, 0x3f, 0xaf, 0xc7, 0x1a, +} + +func TestDNSMalformedPacket2(t *testing.T) { + p := gopacket.NewPacket(testDNSMalformedPacket2, LinkTypeEthernet, testDecodeOptions) + if errLayer := p.ErrorLayer(); errLayer == nil { + t.Error("No error layer on invalid DNS name") + } else if err := errLayer.Error(); !strings.Contains(err.Error(), "offset pointer too high") { + t.Errorf("unexpected error message: %v", err) + } +} + +// testMalformedRootQuery is the packet: +// 08:31:18.143065 IP 10.77.0.26.53 > 10.1.0.233.65071: 59508- 0/13/3 (508) +// 0x0000: 0055 22af c637 0022 55ac deac 0800 4500 .U"..7."U.....E. +// 0x0010: 0218 76b2 4000 7211 7ad2 0a4d 001a 0a01 ..v.@.r.z..M.... +// 0x0020: 00e9 0035 fe2f 0204 b8f5 e874 8100 0001 ...5./.....t.... +// 0x0030: 0000 000d 0003 0c61 786b 7663 6863 7063 .......axkvchcpc +// 0x0040: 7073 6c0a 7878 7878 7878 7878 7878 036e psl.xxxxxxxxxx.n +// 0x0050: 6574 0000 0100 0100 0002 0001 0000 0e10 et.............. +// 0x0060: 0014 016d 0c72 6f6f 742d 7365 7276 6572 ...m.root-server +// 0x0070: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x0080: 0014 0161 0c72 6f6f 742d 7365 7276 6572 ...a.root-server +// 0x0090: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x00a0: 0014 0169 0c72 6f6f 742d 7365 7276 6572 ...i.root-server +// 0x00b0: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x00c0: 0014 0162 0c72 6f6f 742d 7365 7276 6572 ...b.root-server +// 0x00d0: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x00e0: 0014 016c 0c72 6f6f 742d 7365 7276 6572 ...l.root-server +// 0x00f0: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x0100: 0014 0166 0c72 6f6f 742d 7365 7276 6572 ...f.root-server +// 0x0110: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x0120: 0014 0167 0c72 6f6f 742d 7365 7276 6572 ...g.root-server +// 0x0130: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x0140: 0014 0164 0c72 6f6f 742d 7365 7276 6572 ...d.root-server +// 0x0150: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x0160: 0014 0168 0c72 6f6f 742d 7365 7276 6572 ...h.root-server +// 0x0170: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x0180: 0014 0165 0c72 6f6f 742d 7365 7276 6572 ...e.root-server +// 0x0190: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x01a0: 0014 016a 0c72 6f6f 742d 7365 7276 6572 ...j.root-server +// 0x01b0: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x01c0: 0014 016b 0c72 6f6f 742d 7365 7276 6572 ...k.root-server +// 0x01d0: 7303 6e65 7400 c02d 0002 0001 0000 0e10 s.net..-........ +// 0x01e0: 0014 0163 0c72 6f6f 742d 7365 7276 6572 ...c.root-server +// 0x01f0: 7303 6e65 7400 c038 0001 0001 0000 0e10 s.net..8........ +// 0x0200: 0004 ca0c 1b21 c058 0001 0001 0000 0e10 .....!.X........ +// 0x0210: 0004 c629 0004 c078 0001 0001 0000 0e10 ...)...x........ +// 0x0220: 0004 c024 9411 ...$.. +var testMalformedRootQuery = []byte{ + 0x00, 0x55, 0x22, 0xaf, 0xc6, 0x37, 0x00, 0x22, 0x55, 0xac, 0xde, 0xac, 0x08, 0x00, 0x45, 0x00, + 0x02, 0x18, 0x76, 0xb2, 0x40, 0x00, 0x72, 0x11, 0x7a, 0xd2, 0x0a, 0x4d, 0x00, 0x1a, 0x0a, 0x01, + 0x00, 0xe9, 0x00, 0x35, 0xfe, 0x2f, 0x02, 0x04, 0xb8, 0xf5, 0xe8, 0x74, 0x81, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x0d, 0x00, 0x03, 0x0c, 0x61, 0x78, 0x6b, 0x76, 0x63, 0x68, 0x63, 0x70, 0x63, + 0x70, 0x73, 0x6c, 0x0a, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x03, 0x6e, + 0x65, 0x74, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x6d, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x61, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x69, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x62, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x6c, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x66, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x67, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x64, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x68, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x65, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x6a, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x6b, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x2d, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x14, 0x01, 0x63, 0x0c, 0x72, 0x6f, 0x6f, 0x74, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, + 0x73, 0x03, 0x6e, 0x65, 0x74, 0x00, 0xc0, 0x38, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x04, 0xca, 0x0c, 0x1b, 0x21, 0xc0, 0x58, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x04, 0xc6, 0x29, 0x00, 0x04, 0xc0, 0x78, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x0e, 0x10, + 0x00, 0x04, 0xc0, 0x24, 0x94, 0x11, +} + +func TestMalformedRootQuery(t *testing.T) { + p := gopacket.NewPacket(testMalformedRootQuery, LinkTypeEthernet, testDecodeOptions) + if errLayer := p.ErrorLayer(); errLayer == nil { + t.Error("No error layer on invalid DNS name") + } else if err := errLayer.Error(); !strings.Contains(err.Error(), "no dns data found") { + t.Errorf("unexpected error message: %v", err) + } +} + +// testAnotherMalformedDNS is the packet: +// 10:52:13.690904 IP 10.77.0.29.53 > 10.1.0.6.42280: 13491 op6+% [b2&3=0x3313] [11720a] [23583q] [29742n] [52087au] Type22277 (Class 43688)? M- M-<.VM-^KM-wQM-s"M-^E^]M-+^Wx^P^@M-^\^\M-oM-FM-U^F^E7M-tM-^VM-^[M-F^H>G^FM-uM-^KM-_6GM-[M-jM-bM-^H]hM-^J.[|domain] +// 0x0000: 0055 22af c637 0022 55ac deac 0800 4500 .U"..7."U.....E. +// 0x0010: 05c1 2eea 4000 3611 fbd1 0a4d 001d 0a01 ....@.6....M.... +// 0x0020: 0006 0035 a528 05ad 00a2 34b3 3313 5c1f ...5.(....4.3.\. +// 0x0030: 2dc8 742e cb77 2da0 bc2e 568b f751 f322 -.t..w-...V..Q." +// 0x0040: 851d ab17 7810 009c 1cef c6d5 0605 37f4 ....x.........7. +// 0x0050: 969b c65e 483e 4706 f58b df36 47db eae2 ...^H>G....6G... +// 0x0060: 885d 688a c5a5 5705 aaa8 95eb 93a4 d85a .]h...W........Z +// 0x0070: c9af 261f 7816 a354 2d23 d84a 579c 4876 ..&.x..T-#.JW.Hv +// 0x0080: a391 43db 5c41 191a 92b8 dcdd 6839 eef5 ..C.\A......h9.. +// 0x0090: 728e 13e0 0679 6f47 88a0 25b9 44d8 f8e7 r....yoG..%.D... +// 0x00a0: 8afe 0bfa f811 8da5 f8a3 1f8e d23b fe12 .............;.. +// 0x00b0: d943 9327 92ad 4410 183e 688d b06d 5391 .C.'..D..>h..mS. +// 0x00c0: 695b e49f 8f1e c075 d043 afe0 1174 9db0 i[.....u.C...t.. +// 0x00d0: 06b0 f01e b85b 3c84 945e 06d0 b20f 9eaa .....[<..^...... +// 0x00e0: 123d 0ab0 2a55 309c 0ee9 3e5e db2f f377 .=..*U0...>^./.w +// 0x00f0: d7f1 9bae 373d 3316 0796 b80e dd18 5173 ....7=3.......Qs +// 0x0100: b28d 84fd 1812 d87b 42c8 5f11 4db6 b269 .......{B._.M..i +// 0x0110: 1c42 4aea d5a4 644b 6c00 f0c0 fcee 71a7 .BJ...dKl.....q. +// 0x0120: e7f0 719c a207 dc5c a6fa f005 a338 7ff0 ..q....\.....8.. +// 0x0130: 5beb 3b4d 8952 2a46 d47b a5a2 e1fb 9e76 [.;M.R*F.{.....v +// 0x0140: c815 6258 50f4 6997 bad5 b479 2d06 ebbb ..bXP.i....y-... +// 0x0150: 2cac 2ecc e4f0 1f94 ce9f 186c 61da 9681 ,..........la... +// 0x0160: 345c 4d88 efc7 037b fbe3 4402 ea06 2e5d 4\M....{..D....] +// 0x0170: 2e6e 4860 e180 3ef7 c006 0ad1 ebb9 c4ff .nH`..>......... +// 0x0180: dee2 f21c 02c2 751a ded8 ae2e 13a9 3fa2 ......u.......?. +// 0x0190: 392a 8b54 11b2 2b4e 2bf1 4780 db9f 8c10 9*.T..+N+.G..... +// 0x01a0: ac6f 61b0 7b19 423f 07e5 4628 b870 f75d .oa.{.B?..F(.p.] +// 0x01b0: 09a3 63b2 77af 5985 a0ae 51d8 243f a7c8 ..c.w.Y...Q.$?.. +// 0x01c0: ab08 7fc6 0217 c09f c412 0c45 e6aa 96bf ...........E.... +// 0x01d0: 184c 4307 1f1f c4f4 7734 da31 2088 662b .LC.....w4.1..f+ +// 0x01e0: 44c5 096f 1d1d 2dc5 ffd6 867d 9fc5 7b45 D..o..-....}..{E +// 0x01f0: f949 7dd9 38de 0d51 ac2a 32fc f50b 1bbe .I}.8..Q.*2..... +// 0x0200: 1c4b 5441 fbf3 0821 6c28 4530 5676 1d27 .KTA...!l(E0Vv.' +// 0x0210: 5087 466c 3d5b 45a6 af7f 917a 6d43 66c2 P.Fl=[E....zmCf. +// 0x0220: 036a 8bef ca60 9b13 8d29 9fda 82fa 01b1 .j...`...)...... +// 0x0230: df8f 1f83 c71d 630f 349e 508c 9f7a e3da ......c.4.P..z.. +// 0x0240: a114 3622 9df8 9926 4dac 4150 d505 7b3a ..6"...&M.AP..{: +// 0x0250: 6fed fc75 6b4f 2d60 8a89 767d 9af0 896e o..ukO-`..v}...n +// 0x0260: 907d 1ada def3 345c 0d81 283c a24f fcbb .}....4\..(<.O.. +// 0x0270: bbdd b7b3 e3bb 9f1b d966 51b7 8217 7fa0 .........fQ..... +// 0x0280: e828 d3ca a6f1 532f 164e e405 bb3b 0de3 .(....S/.N...;.. +// 0x0290: 985d 6e89 d825 ebc6 d8ba 5190 a114 c6a3 .]n..%....Q..... +// 0x02a0: 18b4 8aa7 181a 01ac cdc0 8048 ea72 a5e3 ...........H.r.. +// 0x02b0: e37a dc57 65cd b787 39e6 c39e 317b 45d8 .z.We...9...1{E. +// 0x02c0: 475c 05ba e8f8 8224 5a85 27b8 1584 8d78 G\.....$Z.'....x +// 0x02d0: 62b6 6495 ac10 338f 1122 f2ff 043e 9e2a b.d...3.."...>.* +// 0x02e0: 1058 a910 5792 6fcd 9a96 6183 6708 8f70 .X..W.o...a.g..p +// 0x02f0: edc6 a67c 64ff 50fa 520b de94 c82c c4d6 ...|d.P.R....,.. +// 0x0300: 7d8f 0fd5 2f0d 9833 7c6c be10 a4e5 dc99 }.../..3|l...... +// 0x0310: a467 ef5f b35b c11c e23c 131a 48b2 9cef .g._.[...<..H... +// 0x0320: 5a2f fece dd9e 2aea 0db9 faf3 a6ef b29d Z/....*......... +// 0x0330: e85d a410 dd6a 6806 3fc6 1694 179f cb4b .]...jh.?......K +// 0x0340: 08c4 86b2 0713 cddb b257 d56b fe82 7d82 .........W.k..}. +// 0x0350: 0d1f 6dc9 67b2 d2a1 6791 4f38 edf9 491f ..m.g...g.O8..I. +// 0x0360: 2c02 35f5 8165 ecc3 bc6a b631 3c7e 1ad4 ,.5..e...j.1<~.. +// 0x0370: 8e27 f962 f942 11b5 1b45 9bac b474 3c6e .'.b.B...E...t<n +// 0x0380: 6832 3075 be6d ac0d a8a0 7d47 a6ef 4e43 h20u.m....}G..NC +// 0x0390: 6b9a 3097 8a8b 82a3 9515 362c f7d6 a37f k.0.......6,.... +// 0x03a0: 7313 1199 a5f3 03dc bcc9 fb10 c23d eeb9 s............=.. +// 0x03b0: 78ff c8f3 0d38 9f74 ceec b7ae 63e3 3424 x....8.t....c.4$ +// 0x03c0: b783 f106 011f 666b bf2d abc8 ea10 57a1 ......fk.-....W. +// 0x03d0: 7cf2 4a3f 57ca 1386 bfba 27e5 4662 81c8 |.J?W.....'.Fb.. +// 0x03e0: 041e 1820 b3d5 c399 cd4d 222f 29f0 b994 .........M"/)... +// 0x03f0: 865a e6e2 1686 3261 b0cd caaf 07ec d0bc .Z....2a........ +// 0x0400: afb8 3cf0 51c1 6c7a 6383 6b3a ff47 9551 ..<.Q.lzc.k:.G.Q +// 0x0410: 1099 525f 355e 4684 bd34 ec12 88c9 dcc2 ..R_5^F..4...... +// 0x0420: d11c 826d f1df 37e6 f08f 6ce8 817d bdc3 ...m..7...l..}.. +// 0x0430: 20b9 a274 c645 c67d f299 fef9 287f 09ee ...t.E.}....(... +// 0x0440: ac67 6872 a126 b1d3 922c 4c2a 0ec9 b6d4 .ghr.&...,L*.... +// 0x0450: fb59 6163 d1c4 1708 8d94 bc3d be5e ae29 .Yac.......=.^.) +// 0x0460: 51ff a765 9df6 ae35 ed6b 0555 933f 3ed6 Q..e...5.k.U.?>. +// 0x0470: 259b d93e f86f 6088 0c4e 357b 5c67 7d93 %..>.o`..N5{\g}. +// 0x0480: a695 1a42 e1e1 ef91 14d7 b7b7 0ca4 2dda ...B..........-. +// 0x0490: 6ac1 771e 25c1 a578 4ca8 6fd8 de04 1c09 j.w.%..xL.o..... +// 0x04a0: df49 f179 6a58 2b45 7231 307f bc67 e5e7 .I.yjX+Er10..g.. +// 0x04b0: c5cd fec0 b021 508e 4fc5 f821 f734 90bc .....!P.O..!.4.. +// 0x04c0: c87f 14f1 2e5c d17b 1818 5b4a 6b68 0212 .....\.{..[Jkh.. +// 0x04d0: 1791 4a30 8518 99a9 b516 67e7 ed56 d1d1 ..J0......g..V.. +// 0x04e0: 239d dfda 11c5 0afe e58a b6e0 fb66 ab5c #............f.\ +// 0x04f0: f590 dcd6 457d 01d1 83f5 a9f0 cdb2 9c14 ....E}.......... +// 0x0500: ff66 f10c d428 a07b 34e3 d600 91f2 aca7 .f...(.{4....... +// 0x0510: 4e1f f3ac a96e 2aa3 ec9b 448c 748d f858 N....n*...D.t..X +// 0x0520: 131c d496 af9b f5f0 d2f5 57ac 0b64 55a1 ..........W..dU. +// 0x0530: 860e 5ad0 3e62 26b5 9e17 f51f 88c1 02e3 ..Z.>b&......... +// 0x0540: 4a38 de70 3216 6f88 5d1e f429 ee19 4121 J8.p2.o.]..)..A! +// 0x0550: f571 84ac 3789 141f 1798 90b1 8373 2499 .q..7........s$. +// 0x0560: c131 b13f f3a3 9a07 aef1 bfe8 8cd7 8c2e .1.?............ +// 0x0570: ba35 dfc5 eb07 013c 7621 6481 bdfb 6233 .5.....<v!d...b3 +// 0x0580: 22e2 0f05 7e15 0417 67e4 2632 5207 28a6 "...~...g.&2R.(. +// 0x0590: 8e88 9423 de54 5412 b53e fd8d d47a de58 ...#.TT..>...z.X +// 0x05a0: a1b2 6e08 d06d dc21 1eda 14a0 a2f7 1701 ..n..m.!........ +// 0x05b0: a5e0 dfd7 871f 595d db43 70f5 bab3 b732 ......Y].Cp....2 +// 0x05c0: 6275 da15 b203 dac7 321f 8d61 11bd 30 bu......2..a..0 +var testAnotherMalformedDNS = []byte{ + 0x00, 0x55, 0x22, 0xaf, 0xc6, 0x37, 0x00, 0x22, 0x55, 0xac, 0xde, 0xac, 0x08, 0x00, 0x45, 0x00, + 0x05, 0xc1, 0x2e, 0xea, 0x40, 0x00, 0x36, 0x11, 0xfb, 0xd1, 0x0a, 0x4d, 0x00, 0x1d, 0x0a, 0x01, + 0x00, 0x06, 0x00, 0x35, 0xa5, 0x28, 0x05, 0xad, 0x00, 0xa2, 0x34, 0xb3, 0x33, 0x13, 0x5c, 0x1f, + 0x2d, 0xc8, 0x74, 0x2e, 0xcb, 0x77, 0x2d, 0xa0, 0xbc, 0x2e, 0x56, 0x8b, 0xf7, 0x51, 0xf3, 0x22, + 0x85, 0x1d, 0xab, 0x17, 0x78, 0x10, 0x00, 0x9c, 0x1c, 0xef, 0xc6, 0xd5, 0x06, 0x05, 0x37, 0xf4, + 0x96, 0x9b, 0xc6, 0x5e, 0x48, 0x3e, 0x47, 0x06, 0xf5, 0x8b, 0xdf, 0x36, 0x47, 0xdb, 0xea, 0xe2, + 0x88, 0x5d, 0x68, 0x8a, 0xc5, 0xa5, 0x57, 0x05, 0xaa, 0xa8, 0x95, 0xeb, 0x93, 0xa4, 0xd8, 0x5a, + 0xc9, 0xaf, 0x26, 0x1f, 0x78, 0x16, 0xa3, 0x54, 0x2d, 0x23, 0xd8, 0x4a, 0x57, 0x9c, 0x48, 0x76, + 0xa3, 0x91, 0x43, 0xdb, 0x5c, 0x41, 0x19, 0x1a, 0x92, 0xb8, 0xdc, 0xdd, 0x68, 0x39, 0xee, 0xf5, + 0x72, 0x8e, 0x13, 0xe0, 0x06, 0x79, 0x6f, 0x47, 0x88, 0xa0, 0x25, 0xb9, 0x44, 0xd8, 0xf8, 0xe7, + 0x8a, 0xfe, 0x0b, 0xfa, 0xf8, 0x11, 0x8d, 0xa5, 0xf8, 0xa3, 0x1f, 0x8e, 0xd2, 0x3b, 0xfe, 0x12, + 0xd9, 0x43, 0x93, 0x27, 0x92, 0xad, 0x44, 0x10, 0x18, 0x3e, 0x68, 0x8d, 0xb0, 0x6d, 0x53, 0x91, + 0x69, 0x5b, 0xe4, 0x9f, 0x8f, 0x1e, 0xc0, 0x75, 0xd0, 0x43, 0xaf, 0xe0, 0x11, 0x74, 0x9d, 0xb0, + 0x06, 0xb0, 0xf0, 0x1e, 0xb8, 0x5b, 0x3c, 0x84, 0x94, 0x5e, 0x06, 0xd0, 0xb2, 0x0f, 0x9e, 0xaa, + 0x12, 0x3d, 0x0a, 0xb0, 0x2a, 0x55, 0x30, 0x9c, 0x0e, 0xe9, 0x3e, 0x5e, 0xdb, 0x2f, 0xf3, 0x77, + 0xd7, 0xf1, 0x9b, 0xae, 0x37, 0x3d, 0x33, 0x16, 0x07, 0x96, 0xb8, 0x0e, 0xdd, 0x18, 0x51, 0x73, + 0xb2, 0x8d, 0x84, 0xfd, 0x18, 0x12, 0xd8, 0x7b, 0x42, 0xc8, 0x5f, 0x11, 0x4d, 0xb6, 0xb2, 0x69, + 0x1c, 0x42, 0x4a, 0xea, 0xd5, 0xa4, 0x64, 0x4b, 0x6c, 0x00, 0xf0, 0xc0, 0xfc, 0xee, 0x71, 0xa7, + 0xe7, 0xf0, 0x71, 0x9c, 0xa2, 0x07, 0xdc, 0x5c, 0xa6, 0xfa, 0xf0, 0x05, 0xa3, 0x38, 0x7f, 0xf0, + 0x5b, 0xeb, 0x3b, 0x4d, 0x89, 0x52, 0x2a, 0x46, 0xd4, 0x7b, 0xa5, 0xa2, 0xe1, 0xfb, 0x9e, 0x76, + 0xc8, 0x15, 0x62, 0x58, 0x50, 0xf4, 0x69, 0x97, 0xba, 0xd5, 0xb4, 0x79, 0x2d, 0x06, 0xeb, 0xbb, + 0x2c, 0xac, 0x2e, 0xcc, 0xe4, 0xf0, 0x1f, 0x94, 0xce, 0x9f, 0x18, 0x6c, 0x61, 0xda, 0x96, 0x81, + 0x34, 0x5c, 0x4d, 0x88, 0xef, 0xc7, 0x03, 0x7b, 0xfb, 0xe3, 0x44, 0x02, 0xea, 0x06, 0x2e, 0x5d, + 0x2e, 0x6e, 0x48, 0x60, 0xe1, 0x80, 0x3e, 0xf7, 0xc0, 0x06, 0x0a, 0xd1, 0xeb, 0xb9, 0xc4, 0xff, + 0xde, 0xe2, 0xf2, 0x1c, 0x02, 0xc2, 0x75, 0x1a, 0xde, 0xd8, 0xae, 0x2e, 0x13, 0xa9, 0x3f, 0xa2, + 0x39, 0x2a, 0x8b, 0x54, 0x11, 0xb2, 0x2b, 0x4e, 0x2b, 0xf1, 0x47, 0x80, 0xdb, 0x9f, 0x8c, 0x10, + 0xac, 0x6f, 0x61, 0xb0, 0x7b, 0x19, 0x42, 0x3f, 0x07, 0xe5, 0x46, 0x28, 0xb8, 0x70, 0xf7, 0x5d, + 0x09, 0xa3, 0x63, 0xb2, 0x77, 0xaf, 0x59, 0x85, 0xa0, 0xae, 0x51, 0xd8, 0x24, 0x3f, 0xa7, 0xc8, + 0xab, 0x08, 0x7f, 0xc6, 0x02, 0x17, 0xc0, 0x9f, 0xc4, 0x12, 0x0c, 0x45, 0xe6, 0xaa, 0x96, 0xbf, + 0x18, 0x4c, 0x43, 0x07, 0x1f, 0x1f, 0xc4, 0xf4, 0x77, 0x34, 0xda, 0x31, 0x20, 0x88, 0x66, 0x2b, + 0x44, 0xc5, 0x09, 0x6f, 0x1d, 0x1d, 0x2d, 0xc5, 0xff, 0xd6, 0x86, 0x7d, 0x9f, 0xc5, 0x7b, 0x45, + 0xf9, 0x49, 0x7d, 0xd9, 0x38, 0xde, 0x0d, 0x51, 0xac, 0x2a, 0x32, 0xfc, 0xf5, 0x0b, 0x1b, 0xbe, + 0x1c, 0x4b, 0x54, 0x41, 0xfb, 0xf3, 0x08, 0x21, 0x6c, 0x28, 0x45, 0x30, 0x56, 0x76, 0x1d, 0x27, + 0x50, 0x87, 0x46, 0x6c, 0x3d, 0x5b, 0x45, 0xa6, 0xaf, 0x7f, 0x91, 0x7a, 0x6d, 0x43, 0x66, 0xc2, + 0x03, 0x6a, 0x8b, 0xef, 0xca, 0x60, 0x9b, 0x13, 0x8d, 0x29, 0x9f, 0xda, 0x82, 0xfa, 0x01, 0xb1, + 0xdf, 0x8f, 0x1f, 0x83, 0xc7, 0x1d, 0x63, 0x0f, 0x34, 0x9e, 0x50, 0x8c, 0x9f, 0x7a, 0xe3, 0xda, + 0xa1, 0x14, 0x36, 0x22, 0x9d, 0xf8, 0x99, 0x26, 0x4d, 0xac, 0x41, 0x50, 0xd5, 0x05, 0x7b, 0x3a, + 0x6f, 0xed, 0xfc, 0x75, 0x6b, 0x4f, 0x2d, 0x60, 0x8a, 0x89, 0x76, 0x7d, 0x9a, 0xf0, 0x89, 0x6e, + 0x90, 0x7d, 0x1a, 0xda, 0xde, 0xf3, 0x34, 0x5c, 0x0d, 0x81, 0x28, 0x3c, 0xa2, 0x4f, 0xfc, 0xbb, + 0xbb, 0xdd, 0xb7, 0xb3, 0xe3, 0xbb, 0x9f, 0x1b, 0xd9, 0x66, 0x51, 0xb7, 0x82, 0x17, 0x7f, 0xa0, + 0xe8, 0x28, 0xd3, 0xca, 0xa6, 0xf1, 0x53, 0x2f, 0x16, 0x4e, 0xe4, 0x05, 0xbb, 0x3b, 0x0d, 0xe3, + 0x98, 0x5d, 0x6e, 0x89, 0xd8, 0x25, 0xeb, 0xc6, 0xd8, 0xba, 0x51, 0x90, 0xa1, 0x14, 0xc6, 0xa3, + 0x18, 0xb4, 0x8a, 0xa7, 0x18, 0x1a, 0x01, 0xac, 0xcd, 0xc0, 0x80, 0x48, 0xea, 0x72, 0xa5, 0xe3, + 0xe3, 0x7a, 0xdc, 0x57, 0x65, 0xcd, 0xb7, 0x87, 0x39, 0xe6, 0xc3, 0x9e, 0x31, 0x7b, 0x45, 0xd8, + 0x47, 0x5c, 0x05, 0xba, 0xe8, 0xf8, 0x82, 0x24, 0x5a, 0x85, 0x27, 0xb8, 0x15, 0x84, 0x8d, 0x78, + 0x62, 0xb6, 0x64, 0x95, 0xac, 0x10, 0x33, 0x8f, 0x11, 0x22, 0xf2, 0xff, 0x04, 0x3e, 0x9e, 0x2a, + 0x10, 0x58, 0xa9, 0x10, 0x57, 0x92, 0x6f, 0xcd, 0x9a, 0x96, 0x61, 0x83, 0x67, 0x08, 0x8f, 0x70, + 0xed, 0xc6, 0xa6, 0x7c, 0x64, 0xff, 0x50, 0xfa, 0x52, 0x0b, 0xde, 0x94, 0xc8, 0x2c, 0xc4, 0xd6, + 0x7d, 0x8f, 0x0f, 0xd5, 0x2f, 0x0d, 0x98, 0x33, 0x7c, 0x6c, 0xbe, 0x10, 0xa4, 0xe5, 0xdc, 0x99, + 0xa4, 0x67, 0xef, 0x5f, 0xb3, 0x5b, 0xc1, 0x1c, 0xe2, 0x3c, 0x13, 0x1a, 0x48, 0xb2, 0x9c, 0xef, + 0x5a, 0x2f, 0xfe, 0xce, 0xdd, 0x9e, 0x2a, 0xea, 0x0d, 0xb9, 0xfa, 0xf3, 0xa6, 0xef, 0xb2, 0x9d, + 0xe8, 0x5d, 0xa4, 0x10, 0xdd, 0x6a, 0x68, 0x06, 0x3f, 0xc6, 0x16, 0x94, 0x17, 0x9f, 0xcb, 0x4b, + 0x08, 0xc4, 0x86, 0xb2, 0x07, 0x13, 0xcd, 0xdb, 0xb2, 0x57, 0xd5, 0x6b, 0xfe, 0x82, 0x7d, 0x82, + 0x0d, 0x1f, 0x6d, 0xc9, 0x67, 0xb2, 0xd2, 0xa1, 0x67, 0x91, 0x4f, 0x38, 0xed, 0xf9, 0x49, 0x1f, + 0x2c, 0x02, 0x35, 0xf5, 0x81, 0x65, 0xec, 0xc3, 0xbc, 0x6a, 0xb6, 0x31, 0x3c, 0x7e, 0x1a, 0xd4, + 0x8e, 0x27, 0xf9, 0x62, 0xf9, 0x42, 0x11, 0xb5, 0x1b, 0x45, 0x9b, 0xac, 0xb4, 0x74, 0x3c, 0x6e, + 0x68, 0x32, 0x30, 0x75, 0xbe, 0x6d, 0xac, 0x0d, 0xa8, 0xa0, 0x7d, 0x47, 0xa6, 0xef, 0x4e, 0x43, + 0x6b, 0x9a, 0x30, 0x97, 0x8a, 0x8b, 0x82, 0xa3, 0x95, 0x15, 0x36, 0x2c, 0xf7, 0xd6, 0xa3, 0x7f, + 0x73, 0x13, 0x11, 0x99, 0xa5, 0xf3, 0x03, 0xdc, 0xbc, 0xc9, 0xfb, 0x10, 0xc2, 0x3d, 0xee, 0xb9, + 0x78, 0xff, 0xc8, 0xf3, 0x0d, 0x38, 0x9f, 0x74, 0xce, 0xec, 0xb7, 0xae, 0x63, 0xe3, 0x34, 0x24, + 0xb7, 0x83, 0xf1, 0x06, 0x01, 0x1f, 0x66, 0x6b, 0xbf, 0x2d, 0xab, 0xc8, 0xea, 0x10, 0x57, 0xa1, + 0x7c, 0xf2, 0x4a, 0x3f, 0x57, 0xca, 0x13, 0x86, 0xbf, 0xba, 0x27, 0xe5, 0x46, 0x62, 0x81, 0xc8, + 0x04, 0x1e, 0x18, 0x20, 0xb3, 0xd5, 0xc3, 0x99, 0xcd, 0x4d, 0x22, 0x2f, 0x29, 0xf0, 0xb9, 0x94, + 0x86, 0x5a, 0xe6, 0xe2, 0x16, 0x86, 0x32, 0x61, 0xb0, 0xcd, 0xca, 0xaf, 0x07, 0xec, 0xd0, 0xbc, + 0xaf, 0xb8, 0x3c, 0xf0, 0x51, 0xc1, 0x6c, 0x7a, 0x63, 0x83, 0x6b, 0x3a, 0xff, 0x47, 0x95, 0x51, + 0x10, 0x99, 0x52, 0x5f, 0x35, 0x5e, 0x46, 0x84, 0xbd, 0x34, 0xec, 0x12, 0x88, 0xc9, 0xdc, 0xc2, + 0xd1, 0x1c, 0x82, 0x6d, 0xf1, 0xdf, 0x37, 0xe6, 0xf0, 0x8f, 0x6c, 0xe8, 0x81, 0x7d, 0xbd, 0xc3, + 0x20, 0xb9, 0xa2, 0x74, 0xc6, 0x45, 0xc6, 0x7d, 0xf2, 0x99, 0xfe, 0xf9, 0x28, 0x7f, 0x09, 0xee, + 0xac, 0x67, 0x68, 0x72, 0xa1, 0x26, 0xb1, 0xd3, 0x92, 0x2c, 0x4c, 0x2a, 0x0e, 0xc9, 0xb6, 0xd4, + 0xfb, 0x59, 0x61, 0x63, 0xd1, 0xc4, 0x17, 0x08, 0x8d, 0x94, 0xbc, 0x3d, 0xbe, 0x5e, 0xae, 0x29, + 0x51, 0xff, 0xa7, 0x65, 0x9d, 0xf6, 0xae, 0x35, 0xed, 0x6b, 0x05, 0x55, 0x93, 0x3f, 0x3e, 0xd6, + 0x25, 0x9b, 0xd9, 0x3e, 0xf8, 0x6f, 0x60, 0x88, 0x0c, 0x4e, 0x35, 0x7b, 0x5c, 0x67, 0x7d, 0x93, + 0xa6, 0x95, 0x1a, 0x42, 0xe1, 0xe1, 0xef, 0x91, 0x14, 0xd7, 0xb7, 0xb7, 0x0c, 0xa4, 0x2d, 0xda, + 0x6a, 0xc1, 0x77, 0x1e, 0x25, 0xc1, 0xa5, 0x78, 0x4c, 0xa8, 0x6f, 0xd8, 0xde, 0x04, 0x1c, 0x09, + 0xdf, 0x49, 0xf1, 0x79, 0x6a, 0x58, 0x2b, 0x45, 0x72, 0x31, 0x30, 0x7f, 0xbc, 0x67, 0xe5, 0xe7, + 0xc5, 0xcd, 0xfe, 0xc0, 0xb0, 0x21, 0x50, 0x8e, 0x4f, 0xc5, 0xf8, 0x21, 0xf7, 0x34, 0x90, 0xbc, + 0xc8, 0x7f, 0x14, 0xf1, 0x2e, 0x5c, 0xd1, 0x7b, 0x18, 0x18, 0x5b, 0x4a, 0x6b, 0x68, 0x02, 0x12, + 0x17, 0x91, 0x4a, 0x30, 0x85, 0x18, 0x99, 0xa9, 0xb5, 0x16, 0x67, 0xe7, 0xed, 0x56, 0xd1, 0xd1, + 0x23, 0x9d, 0xdf, 0xda, 0x11, 0xc5, 0x0a, 0xfe, 0xe5, 0x8a, 0xb6, 0xe0, 0xfb, 0x66, 0xab, 0x5c, + 0xf5, 0x90, 0xdc, 0xd6, 0x45, 0x7d, 0x01, 0xd1, 0x83, 0xf5, 0xa9, 0xf0, 0xcd, 0xb2, 0x9c, 0x14, + 0xff, 0x66, 0xf1, 0x0c, 0xd4, 0x28, 0xa0, 0x7b, 0x34, 0xe3, 0xd6, 0x00, 0x91, 0xf2, 0xac, 0xa7, + 0x4e, 0x1f, 0xf3, 0xac, 0xa9, 0x6e, 0x2a, 0xa3, 0xec, 0x9b, 0x44, 0x8c, 0x74, 0x8d, 0xf8, 0x58, + 0x13, 0x1c, 0xd4, 0x96, 0xaf, 0x9b, 0xf5, 0xf0, 0xd2, 0xf5, 0x57, 0xac, 0x0b, 0x64, 0x55, 0xa1, + 0x86, 0x0e, 0x5a, 0xd0, 0x3e, 0x62, 0x26, 0xb5, 0x9e, 0x17, 0xf5, 0x1f, 0x88, 0xc1, 0x02, 0xe3, + 0x4a, 0x38, 0xde, 0x70, 0x32, 0x16, 0x6f, 0x88, 0x5d, 0x1e, 0xf4, 0x29, 0xee, 0x19, 0x41, 0x21, + 0xf5, 0x71, 0x84, 0xac, 0x37, 0x89, 0x14, 0x1f, 0x17, 0x98, 0x90, 0xb1, 0x83, 0x73, 0x24, 0x99, + 0xc1, 0x31, 0xb1, 0x3f, 0xf3, 0xa3, 0x9a, 0x07, 0xae, 0xf1, 0xbf, 0xe8, 0x8c, 0xd7, 0x8c, 0x2e, + 0xba, 0x35, 0xdf, 0xc5, 0xeb, 0x07, 0x01, 0x3c, 0x76, 0x21, 0x64, 0x81, 0xbd, 0xfb, 0x62, 0x33, + 0x22, 0xe2, 0x0f, 0x05, 0x7e, 0x15, 0x04, 0x17, 0x67, 0xe4, 0x26, 0x32, 0x52, 0x07, 0x28, 0xa6, + 0x8e, 0x88, 0x94, 0x23, 0xde, 0x54, 0x54, 0x12, 0xb5, 0x3e, 0xfd, 0x8d, 0xd4, 0x7a, 0xde, 0x58, + 0xa1, 0xb2, 0x6e, 0x08, 0xd0, 0x6d, 0xdc, 0x21, 0x1e, 0xda, 0x14, 0xa0, 0xa2, 0xf7, 0x17, 0x01, + 0xa5, 0xe0, 0xdf, 0xd7, 0x87, 0x1f, 0x59, 0x5d, 0xdb, 0x43, 0x70, 0xf5, 0xba, 0xb3, 0xb7, 0x32, + 0x62, 0x75, 0xda, 0x15, 0xb2, 0x03, 0xda, 0xc7, 0x32, 0x1f, 0x8d, 0x61, 0x11, 0xbd, 0x30, +} + +func TestAnotherMalformedDNS(t *testing.T) { + p := gopacket.NewPacket(testAnotherMalformedDNS, LinkTypeEthernet, testDecodeOptions) + if errLayer := p.ErrorLayer(); errLayer == nil { + t.Error("No error layer on invalid DNS name") + } else if err := errLayer.Error(); !strings.Contains(err.Error(), "offset too high") { + t.Errorf("unexpected error message: %v", err) + } +} + +// testMalformedDNSAgain is the packet: +// 12:14:52.702061 IP 10.77.0.4.53 > 10.1.0.41.61610: 12529 updateDA [b2&3=0x5cad] [38274a] [61303q] [1718n] [14913au][|domain] +// 0x0000: 0055 22af c637 0022 55ac deac 0800 4500 .U"..7."U.....E. +// 0x0010: 0091 2dff 0000 7811 ffe2 0a4d 0004 0a01 ..-...x....M.... +// 0x0020: 0029 0035 f0aa 007d 5b53 30f1 5cad ef77 .).5...}[S0.\..w +// 0x0030: 9582 06b6 3a41 357a 8cef cdc0 a732 b800 ....:A5z.....2.. +// 0x0040: 466e 1c30 2e75 95ac c03d 1ed4 8635 2d09 Fn.0.u...=...5-. +// 0x0050: 2fee 3a82 b4f0 427e 2b6b f870 cc7f c9a1 /.:...B~+k.p.... +// 0x0060: e6f1 a761 97ec 2ff7 d248 4d95 321c 6e4e ...a../..HM.2.nN +// 0x0070: 57fa 6d3d 9ec0 fe3a 6f1e e634 4396 b494 W.m=...:o..4C... +// 0x0080: 8b7a a929 d7e1 da7c c346 ca77 4890 6bf3 .z.)...|.F.wH.k. +// 0x0090: 5ecb 7e97 c49d 3564 984f bf7c 8ac1 dd ^.~...5d.O.|... +var testMalformedDNSAgain = []byte{ + 0x00, 0x55, 0x22, 0xaf, 0xc6, 0x37, 0x00, 0x22, 0x55, 0xac, 0xde, 0xac, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x91, 0x2d, 0xff, 0x00, 0x00, 0x78, 0x11, 0xff, 0xe2, 0x0a, 0x4d, 0x00, 0x04, 0x0a, 0x01, + 0x00, 0x29, 0x00, 0x35, 0xf0, 0xaa, 0x00, 0x7d, 0x5b, 0x53, 0x30, 0xf1, 0x5c, 0xad, 0xef, 0x77, + 0x95, 0x82, 0x06, 0xb6, 0x3a, 0x41, 0x35, 0x7a, 0x8c, 0xef, 0xcd, 0xc0, 0xa7, 0x32, 0xb8, 0x00, + 0x46, 0x6e, 0x1c, 0x30, 0x2e, 0x75, 0x95, 0xac, 0xc0, 0x3d, 0x1e, 0xd4, 0x86, 0x35, 0x2d, 0x09, + 0x2f, 0xee, 0x3a, 0x82, 0xb4, 0xf0, 0x42, 0x7e, 0x2b, 0x6b, 0xf8, 0x70, 0xcc, 0x7f, 0xc9, 0xa1, + 0xe6, 0xf1, 0xa7, 0x61, 0x97, 0xec, 0x2f, 0xf7, 0xd2, 0x48, 0x4d, 0x95, 0x32, 0x1c, 0x6e, 0x4e, + 0x57, 0xfa, 0x6d, 0x3d, 0x9e, 0xc0, 0xfe, 0x3a, 0x6f, 0x1e, 0xe6, 0x34, 0x43, 0x96, 0xb4, 0x94, + 0x8b, 0x7a, 0xa9, 0x29, 0xd7, 0xe1, 0xda, 0x7c, 0xc3, 0x46, 0xca, 0x77, 0x48, 0x90, 0x6b, 0xf3, + 0x5e, 0xcb, 0x7e, 0x97, 0xc4, 0x9d, 0x35, 0x64, 0x98, 0x4f, 0xbf, 0x7c, 0x8a, 0xc1, 0xdd, +} + +func TestMalformedDNSAgain(t *testing.T) { + p := gopacket.NewPacket(testMalformedDNSAgain, LinkTypeEthernet, testDecodeOptions) + if errLayer := p.ErrorLayer(); errLayer == nil { + t.Error("No error layer on invalid DNS name") + } else if err := errLayer.Error(); !strings.Contains(err.Error(), "walked out of range") { + t.Errorf("unexpected error message: %v", err) + } +} + +// testMalformedDNSOhGodMakeItStop is the packet: +// 15:08:24.430906 IP 10.77.0.19.53 > 10.1.0.19.50635: 12397 zoneInit% [b2&3=0x7232] [47729a] [46283q] [60247n] [61718au][|domain] +// 0x0000: 0055 22af c637 0022 55ac deac 0800 4500 .U"..7."U.....E. +// 0x0010: 0079 c51c 4000 3511 6be4 0a4d 0013 0a01 .y..@.5.k..M.... +// 0x0020: 0013 0035 c5cb 0065 ef45 306d 7232 b4cb ...5...e.E0mr2.. +// 0x0030: ba71 eb57 f116 3994 e000 4626 0534 66cc .q.W..9...F&.4f. +// 0x0040: 7b32 24f2 eece bca7 20e2 9a2a e1ce e737 {2$........*...7 +// 0x0050: ac39 5fae 72ec c3ec 284f ca4a 171f 466d .9_.r...(O.J..Fm +// 0x0060: f6c6 84d7 e795 310f 26df 9b59 6db9 21cf ......1.&..Ym.!. +// 0x0070: 15cb 30a3 c4cf df23 805a ed1a 0584 4fc3 ..0....#.Z....O. +// 0x0080: 7fa3 3cb4 e04f e9 ..<..O. +var testMalformedDNSOhGodMakeItStop = []byte{ + 0x00, 0x55, 0x22, 0xaf, 0xc6, 0x37, 0x00, 0x22, 0x55, 0xac, 0xde, 0xac, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x79, 0xc5, 0x1c, 0x40, 0x00, 0x35, 0x11, 0x6b, 0xe4, 0x0a, 0x4d, 0x00, 0x13, 0x0a, 0x01, + 0x00, 0x13, 0x00, 0x35, 0xc5, 0xcb, 0x00, 0x65, 0xef, 0x45, 0x30, 0x6d, 0x72, 0x32, 0xb4, 0xcb, + 0xba, 0x71, 0xeb, 0x57, 0xf1, 0x16, 0x39, 0x94, 0xe0, 0x00, 0x46, 0x26, 0x05, 0x34, 0x66, 0xcc, + 0x7b, 0x32, 0x24, 0xf2, 0xee, 0xce, 0xbc, 0xa7, 0x20, 0xe2, 0x9a, 0x2a, 0xe1, 0xce, 0xe7, 0x37, + 0xac, 0x39, 0x5f, 0xae, 0x72, 0xec, 0xc3, 0xec, 0x28, 0x4f, 0xca, 0x4a, 0x17, 0x1f, 0x46, 0x6d, + 0xf6, 0xc6, 0x84, 0xd7, 0xe7, 0x95, 0x31, 0x0f, 0x26, 0xdf, 0x9b, 0x59, 0x6d, 0xb9, 0x21, 0xcf, + 0x15, 0xcb, 0x30, 0xa3, 0xc4, 0xcf, 0xdf, 0x23, 0x80, 0x5a, 0xed, 0x1a, 0x05, 0x84, 0x4f, 0xc3, + 0x7f, 0xa3, 0x3c, 0xb4, 0xe0, 0x4f, 0xe9, +} + +func TestMalformedDNSOhGodMakeItStop(t *testing.T) { + p := gopacket.NewPacket(testMalformedDNSOhGodMakeItStop, LinkTypeEthernet, testDecodeOptions) + if errLayer := p.ErrorLayer(); errLayer == nil { + t.Error("No error layer on invalid DNS name") + } else if err := errLayer.Error(); !strings.Contains(err.Error(), "offset pointer too high") { + t.Errorf("unexpected error message: %v", err) + } +} + +// testPacketDNSPanic7 is the packet: +// 07:56:25.174747 IP 10.77.0.11.53 > 10.1.0.67.55777: 41808*-| 3/7/0 TXT "google-site-verification=DC2uC-T8kD33lINhNzfo0bNBrw-vrCXs5BPF5BXY56g", TXT "v=spf1 include:spf-a.outlook.com include:spf-b.outlook.com ip4:157.55.9.128/25 include:spf.protection.outlook.com include:spf-a.hotmail.com include:_spf-ssg-b.microsoft.com include:_spf-ssg-c.microsoft.com ~all", TXT "google-site-verification=0iLWhIMhXEkeWwWfFU4ursTn-_OvoOjaA0Lr7Pg1sEM" (512) +// 0x0000: 0055 22af c637 0022 55ac deac 0800 4500 .U"..7."U.....E. +// 0x0010: 021c b5ca 4000 fa11 b46a 0a4d 000b 0a01 ....@....j.M.... +// 0x0020: 0043 0035 d9e1 0208 afd6 a350 8600 0001 .C.5.......P.... +// 0x0030: 0003 0007 0000 076f 7574 6c6f 6f6b 0363 .......outlook.c +// 0x0040: 6f6d 0000 1000 01c0 0c00 1000 0100 0001 om.............. +// 0x0050: 2c00 4544 676f 6f67 6c65 2d73 6974 652d ,.EDgoogle-site- +// 0x0060: 7665 7269 6669 6361 7469 6f6e 3d44 4332 verification=DC2 +// 0x0070: 7543 2d54 386b 4433 336c 494e 684e 7a66 uC-T8kD33lINhNzf +// 0x0080: 6f30 624e 4272 772d 7672 4358 7335 4250 o0bNBrw-vrCXs5BP +// 0x0090: 4635 4258 5935 3667 c00c 0010 0001 0000 F5BXY56g........ +// 0x00a0: 012c 00d3 d276 3d73 7066 3120 696e 636c .,...v=spf1.incl +// 0x00b0: 7564 653a 7370 662d 612e 6f75 746c 6f6f ude:spf-a.outloo +// 0x00c0: 6b2e 636f 6d20 696e 636c 7564 653a 7370 k.com.include:sp +// 0x00d0: 662d 622e 6f75 746c 6f6f 6b2e 636f 6d20 f-b.outlook.com. +// 0x00e0: 6970 343a 3135 372e 3535 2e39 2e31 3238 ip4:157.55.9.128 +// 0x00f0: 2f32 3520 696e 636c 7564 653a 7370 662e /25.include:spf. +// 0x0100: 7072 6f74 6563 7469 6f6e 2e6f 7574 6c6f protection.outlo +// 0x0110: 6f6b 2e63 6f6d 2069 6e63 6c75 6465 3a73 ok.com.include:s +// 0x0120: 7066 2d61 2e68 6f74 6d61 696c 2e63 6f6d pf-a.hotmail.com +// 0x0130: 2069 6e63 6c75 6465 3a5f 7370 662d 7373 .include:_spf-ss +// 0x0140: 672d 622e 6d69 6372 6f73 6f66 742e 636f g-b.microsoft.co +// 0x0150: 6d20 696e 636c 7564 653a 5f73 7066 2d73 m.include:_spf-s +// 0x0160: 7367 2d63 2e6d 6963 726f 736f 6674 2e63 sg-c.microsoft.c +// 0x0170: 6f6d 207e 616c 6cc0 0c00 1000 0100 0001 om.~all......... +// 0x0180: 2c00 4544 676f 6f67 6c65 2d73 6974 652d ,.EDgoogle-site- +// 0x0190: 7665 7269 6669 6361 7469 6f6e 3d30 694c verification=0iL +// 0x01a0: 5768 494d 6858 456b 6557 7757 6646 5534 WhIMhXEkeWwWfFU4 +// 0x01b0: 7572 7354 6e2d 5f4f 766f 4f6a 6141 304c ursTn-_OvoOjaA0L +// 0x01c0: 7237 5067 3173 454d c00c 0002 0001 0002 r7Pg1sEM........ +// 0x01d0: a300 000e 036e 7332 046d 7366 7403 6e65 .....ns2.msft.ne +// 0x01e0: 7400 c00c 0002 0001 0002 a300 0006 036e t..............n +// 0x01f0: 7334 c1ae c00c 0002 0001 0002 a300 0006 s4.............. +// 0x0200: 036e 7331 c1ae c00c 0002 0001 0002 a300 .ns1............ +// 0x0210: 0006 036e 7333 c1ae c00c 0002 0001 0002 ...ns3.......... +// 0x0220: a300 0015 046e 7331 610d .....ns1a. +var testPacketDNSPanic7 = []byte{ + 0x00, 0x55, 0x22, 0xaf, 0xc6, 0x37, 0x00, 0x22, 0x55, 0xac, 0xde, 0xac, 0x08, 0x00, 0x45, 0x00, + 0x02, 0x1c, 0xb5, 0xca, 0x40, 0x00, 0xfa, 0x11, 0xb4, 0x6a, 0x0a, 0x4d, 0x00, 0x0b, 0x0a, 0x01, + 0x00, 0x43, 0x00, 0x35, 0xd9, 0xe1, 0x02, 0x08, 0xaf, 0xd6, 0xa3, 0x50, 0x86, 0x00, 0x00, 0x01, + 0x00, 0x03, 0x00, 0x07, 0x00, 0x00, 0x07, 0x6f, 0x75, 0x74, 0x6c, 0x6f, 0x6f, 0x6b, 0x03, 0x63, + 0x6f, 0x6d, 0x00, 0x00, 0x10, 0x00, 0x01, 0xc0, 0x0c, 0x00, 0x10, 0x00, 0x01, 0x00, 0x00, 0x01, + 0x2c, 0x00, 0x45, 0x44, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2d, 0x73, 0x69, 0x74, 0x65, 0x2d, + 0x76, 0x65, 0x72, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x3d, 0x44, 0x43, 0x32, + 0x75, 0x43, 0x2d, 0x54, 0x38, 0x6b, 0x44, 0x33, 0x33, 0x6c, 0x49, 0x4e, 0x68, 0x4e, 0x7a, 0x66, + 0x6f, 0x30, 0x62, 0x4e, 0x42, 0x72, 0x77, 0x2d, 0x76, 0x72, 0x43, 0x58, 0x73, 0x35, 0x42, 0x50, + 0x46, 0x35, 0x42, 0x58, 0x59, 0x35, 0x36, 0x67, 0xc0, 0x0c, 0x00, 0x10, 0x00, 0x01, 0x00, 0x00, + 0x01, 0x2c, 0x00, 0xd3, 0xd2, 0x76, 0x3d, 0x73, 0x70, 0x66, 0x31, 0x20, 0x69, 0x6e, 0x63, 0x6c, + 0x75, 0x64, 0x65, 0x3a, 0x73, 0x70, 0x66, 0x2d, 0x61, 0x2e, 0x6f, 0x75, 0x74, 0x6c, 0x6f, 0x6f, + 0x6b, 0x2e, 0x63, 0x6f, 0x6d, 0x20, 0x69, 0x6e, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x3a, 0x73, 0x70, + 0x66, 0x2d, 0x62, 0x2e, 0x6f, 0x75, 0x74, 0x6c, 0x6f, 0x6f, 0x6b, 0x2e, 0x63, 0x6f, 0x6d, 0x20, + 0x69, 0x70, 0x34, 0x3a, 0x31, 0x35, 0x37, 0x2e, 0x35, 0x35, 0x2e, 0x39, 0x2e, 0x31, 0x32, 0x38, + 0x2f, 0x32, 0x35, 0x20, 0x69, 0x6e, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x3a, 0x73, 0x70, 0x66, 0x2e, + 0x70, 0x72, 0x6f, 0x74, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x6f, 0x75, 0x74, 0x6c, 0x6f, + 0x6f, 0x6b, 0x2e, 0x63, 0x6f, 0x6d, 0x20, 0x69, 0x6e, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x3a, 0x73, + 0x70, 0x66, 0x2d, 0x61, 0x2e, 0x68, 0x6f, 0x74, 0x6d, 0x61, 0x69, 0x6c, 0x2e, 0x63, 0x6f, 0x6d, + 0x20, 0x69, 0x6e, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x3a, 0x5f, 0x73, 0x70, 0x66, 0x2d, 0x73, 0x73, + 0x67, 0x2d, 0x62, 0x2e, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x73, 0x6f, 0x66, 0x74, 0x2e, 0x63, 0x6f, + 0x6d, 0x20, 0x69, 0x6e, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x3a, 0x5f, 0x73, 0x70, 0x66, 0x2d, 0x73, + 0x73, 0x67, 0x2d, 0x63, 0x2e, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x73, 0x6f, 0x66, 0x74, 0x2e, 0x63, + 0x6f, 0x6d, 0x20, 0x7e, 0x61, 0x6c, 0x6c, 0xc0, 0x0c, 0x00, 0x10, 0x00, 0x01, 0x00, 0x00, 0x01, + 0x2c, 0x00, 0x45, 0x44, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2d, 0x73, 0x69, 0x74, 0x65, 0x2d, + 0x76, 0x65, 0x72, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x3d, 0x30, 0x69, 0x4c, + 0x57, 0x68, 0x49, 0x4d, 0x68, 0x58, 0x45, 0x6b, 0x65, 0x57, 0x77, 0x57, 0x66, 0x46, 0x55, 0x34, + 0x75, 0x72, 0x73, 0x54, 0x6e, 0x2d, 0x5f, 0x4f, 0x76, 0x6f, 0x4f, 0x6a, 0x61, 0x41, 0x30, 0x4c, + 0x72, 0x37, 0x50, 0x67, 0x31, 0x73, 0x45, 0x4d, 0xc0, 0x0c, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, + 0xa3, 0x00, 0x00, 0x0e, 0x03, 0x6e, 0x73, 0x32, 0x04, 0x6d, 0x73, 0x66, 0x74, 0x03, 0x6e, 0x65, + 0x74, 0x00, 0xc0, 0x0c, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, 0x00, 0x06, 0x03, 0x6e, + 0x73, 0x34, 0xc1, 0xae, 0xc0, 0x0c, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, 0x00, 0x06, + 0x03, 0x6e, 0x73, 0x31, 0xc1, 0xae, 0xc0, 0x0c, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, + 0x00, 0x06, 0x03, 0x6e, 0x73, 0x33, 0xc1, 0xae, 0xc0, 0x0c, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, + 0xa3, 0x00, 0x00, 0x15, 0x04, 0x6e, 0x73, 0x31, 0x61, 0x0d, +} + +func TestPacketDNSPanic7(t *testing.T) { + p := gopacket.NewPacket(testPacketDNSPanic7, LinkTypeEthernet, testDecodeOptions) + if errLayer := p.ErrorLayer(); errLayer == nil { + t.Error("No error layer on invalid DNS name") + } else if err := errLayer.Error(); !strings.Contains(err.Error(), "resource record length exceeds data") { + t.Errorf("unexpected error message: %v", err) + } +} |