diff options
Diffstat (limited to 'vendor/github.com/google/gopacket/layers/udp_test.go')
| -rw-r--r-- | vendor/github.com/google/gopacket/layers/udp_test.go | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/vendor/github.com/google/gopacket/layers/udp_test.go b/vendor/github.com/google/gopacket/layers/udp_test.go new file mode 100644 index 0000000..e71236c --- /dev/null +++ b/vendor/github.com/google/gopacket/layers/udp_test.go @@ -0,0 +1,372 @@ +// Copyright 2012, Google, Inc. All rights reserved. +// Copyright 2009-2011 Andreas Krennmair. 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 ( + "reflect" + "testing" + + "github.com/google/gopacket" +) + +// testUDPPacketDNS is the packet: +// 10:33:07.883637 IP 172.16.255.1.53 > 172.29.20.15.35181: 47320 7/0/0 MX ALT2.ASPMX.L.GOOGLE.com. 20, MX ASPMX2.GOOGLEMAIL.com. 30, MX ASPMX3.GOOGLEMAIL.com. 30, MX ASPMX4.GOOGLEMAIL.com. 30, MX ASPMX5.GOOGLEMAIL.com. 30, MX ASPMX.L.GOOGLE.com. 10, MX ALT1.ASPMX.L.GOOGLE.com. 20 (202) +// 0x0000: 24be 0527 0b17 001f cab3 75c0 0800 4500 $..'......u...E. +// 0x0010: 00e6 68cf 0000 3f11 a6f9 ac10 ff01 ac1d ..h...?......... +// 0x0020: 140f 0035 896d 00d2 754a b8d8 8180 0001 ...5.m..uJ...... +// 0x0030: 0007 0000 0000 0478 6b63 6403 636f 6d00 .......xkcd.com. +// 0x0040: 000f 0001 c00c 000f 0001 0000 0258 0018 .............X.. +// 0x0050: 0014 0441 4c54 3205 4153 504d 5801 4c06 ...ALT2.ASPMX.L. +// 0x0060: 474f 4f47 4c45 c011 c00c 000f 0001 0000 GOOGLE.......... +// 0x0070: 0258 0016 001e 0641 5350 4d58 320a 474f .X.....ASPMX2.GO +// 0x0080: 4f47 4c45 4d41 494c c011 c00c 000f 0001 OGLEMAIL........ +// 0x0090: 0000 0258 000b 001e 0641 5350 4d58 33c0 ...X.....ASPMX3. +// 0x00a0: 53c0 0c00 0f00 0100 0002 5800 0b00 1e06 S.........X..... +// 0x00b0: 4153 504d 5834 c053 c00c 000f 0001 0000 ASPMX4.S........ +// 0x00c0: 0258 000b 001e 0641 5350 4d58 35c0 53c0 .X.....ASPMX5.S. +// 0x00d0: 0c00 0f00 0100 0002 5800 0400 0ac0 2dc0 ........X.....-. +// 0x00e0: 0c00 0f00 0100 0002 5800 0900 1404 414c ........X.....AL +// 0x00f0: 5431 c02d T1.- +// Packet generated by doing DNS query for 'xkcd.com' +var testUDPPacketDNS = []byte{ + 0x24, 0xbe, 0x05, 0x27, 0x0b, 0x17, 0x00, 0x1f, 0xca, 0xb3, 0x75, 0xc0, 0x08, 0x00, 0x45, 0x00, + 0x00, 0xe6, 0x68, 0xcf, 0x00, 0x00, 0x3f, 0x11, 0xa6, 0xf9, 0xac, 0x10, 0xff, 0x01, 0xac, 0x1d, + 0x14, 0x0f, 0x00, 0x35, 0x89, 0x6d, 0x00, 0xd2, 0x75, 0x4a, 0xb8, 0xd8, 0x81, 0x80, 0x00, 0x01, + 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x04, 0x78, 0x6b, 0x63, 0x64, 0x03, 0x63, 0x6f, 0x6d, 0x00, + 0x00, 0x0f, 0x00, 0x01, 0xc0, 0x0c, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x00, 0x02, 0x58, 0x00, 0x18, + 0x00, 0x14, 0x04, 0x41, 0x4c, 0x54, 0x32, 0x05, 0x41, 0x53, 0x50, 0x4d, 0x58, 0x01, 0x4c, 0x06, + 0x47, 0x4f, 0x4f, 0x47, 0x4c, 0x45, 0xc0, 0x11, 0xc0, 0x0c, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x00, + 0x02, 0x58, 0x00, 0x16, 0x00, 0x1e, 0x06, 0x41, 0x53, 0x50, 0x4d, 0x58, 0x32, 0x0a, 0x47, 0x4f, + 0x4f, 0x47, 0x4c, 0x45, 0x4d, 0x41, 0x49, 0x4c, 0xc0, 0x11, 0xc0, 0x0c, 0x00, 0x0f, 0x00, 0x01, + 0x00, 0x00, 0x02, 0x58, 0x00, 0x0b, 0x00, 0x1e, 0x06, 0x41, 0x53, 0x50, 0x4d, 0x58, 0x33, 0xc0, + 0x53, 0xc0, 0x0c, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x00, 0x02, 0x58, 0x00, 0x0b, 0x00, 0x1e, 0x06, + 0x41, 0x53, 0x50, 0x4d, 0x58, 0x34, 0xc0, 0x53, 0xc0, 0x0c, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x00, + 0x02, 0x58, 0x00, 0x0b, 0x00, 0x1e, 0x06, 0x41, 0x53, 0x50, 0x4d, 0x58, 0x35, 0xc0, 0x53, 0xc0, + 0x0c, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x00, 0x02, 0x58, 0x00, 0x04, 0x00, 0x0a, 0xc0, 0x2d, 0xc0, + 0x0c, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x00, 0x02, 0x58, 0x00, 0x09, 0x00, 0x14, 0x04, 0x41, 0x4c, + 0x54, 0x31, 0xc0, 0x2d, +} + +func TestUDPPacketDNS(t *testing.T) { + p := gopacket.NewPacket(testUDPPacketDNS, LinkTypeEthernet, gopacket.Default) + if p.ErrorLayer() != nil { + t.Error("Failed to decode packet:", p.ErrorLayer().Error()) + } + checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv4, LayerTypeUDP, LayerTypeDNS}, t) + if got, ok := p.TransportLayer().(*UDP); ok { + want := &UDP{ + BaseLayer: BaseLayer{ + Contents: []byte{0x0, 0x35, 0x89, 0x6d, 0x0, 0xd2, 0x75, 0x4a}, + Payload: []byte{0xb8, 0xd8, 0x81, 0x80, 0x0, 0x1, 0x0, + 0x7, 0x0, 0x0, 0x0, 0x0, 0x4, 0x78, 0x6b, 0x63, 0x64, 0x3, 0x63, 0x6f, + 0x6d, 0x0, 0x0, 0xf, 0x0, 0x1, 0xc0, 0xc, 0x0, 0xf, 0x0, 0x1, 0x0, 0x0, + 0x2, 0x58, 0x0, 0x18, 0x0, 0x14, 0x4, 0x41, 0x4c, 0x54, 0x32, 0x5, 0x41, + 0x53, 0x50, 0x4d, 0x58, 0x1, 0x4c, 0x6, 0x47, 0x4f, 0x4f, 0x47, 0x4c, + 0x45, 0xc0, 0x11, 0xc0, 0xc, 0x0, 0xf, 0x0, 0x1, 0x0, 0x0, 0x2, 0x58, 0x0, + 0x16, 0x0, 0x1e, 0x6, 0x41, 0x53, 0x50, 0x4d, 0x58, 0x32, 0xa, 0x47, 0x4f, + 0x4f, 0x47, 0x4c, 0x45, 0x4d, 0x41, 0x49, 0x4c, 0xc0, 0x11, 0xc0, 0xc, + 0x0, 0xf, 0x0, 0x1, 0x0, 0x0, 0x2, 0x58, 0x0, 0xb, 0x0, 0x1e, 0x6, 0x41, + 0x53, 0x50, 0x4d, 0x58, 0x33, 0xc0, 0x53, 0xc0, 0xc, 0x0, 0xf, 0x0, 0x1, + 0x0, 0x0, 0x2, 0x58, 0x0, 0xb, 0x0, 0x1e, 0x6, 0x41, 0x53, 0x50, 0x4d, + 0x58, 0x34, 0xc0, 0x53, 0xc0, 0xc, 0x0, 0xf, 0x0, 0x1, 0x0, 0x0, 0x2, + 0x58, 0x0, 0xb, 0x0, 0x1e, 0x6, 0x41, 0x53, 0x50, 0x4d, 0x58, 0x35, 0xc0, + 0x53, 0xc0, 0xc, 0x0, 0xf, 0x0, 0x1, 0x0, 0x0, 0x2, 0x58, 0x0, 0x4, 0x0, + 0xa, 0xc0, 0x2d, 0xc0, 0xc, 0x0, 0xf, 0x0, 0x1, 0x0, 0x0, 0x2, 0x58, 0x0, + 0x9, 0x0, 0x14, 0x4, 0x41, 0x4c, 0x54, 0x31, 0xc0, 0x2d}, + }, + SrcPort: 53, + DstPort: 35181, + Length: 210, + Checksum: 30026, + sPort: []byte{0x0, 0x35}, + dPort: []byte{0x89, 0x6d}, + } + if !reflect.DeepEqual(got, want) { + t.Errorf("UDP packet mismatch:\ngot :\n%#v\n\nwant :\n%#v\n\n", got, want) + } + } else { + t.Error("Transport layer packet not UDP") + } +} + +func loadDNS(dnspacket []byte, t *testing.T) *DNS { + p := gopacket.NewPacket(dnspacket, LinkTypeEthernet, gopacket.Default) + if p.ErrorLayer() != nil { + t.Error("Failed to decode packet:", p.ErrorLayer().Error()) + } + checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv4, + LayerTypeUDP, LayerTypeDNS}, t) + + dnsL := p.Layer(LayerTypeDNS) + if dnsL == nil { + t.Error("No DNS Layer found") + } + + dns, ok := dnsL.(*DNS) + if !ok { + return nil + } + return dns +} + +var testDNSQueryA = []byte{ + 0xfe, 0x54, 0x00, 0x3e, 0x00, 0x96, 0x52, 0x54, /* .T.>..RT */ + 0x00, 0xbd, 0x1c, 0x70, 0x08, 0x00, 0x45, 0x00, /* ...p..E. */ + 0x00, 0x3c, 0x22, 0xe0, 0x00, 0x00, 0x40, 0x11, /* .<"...@. */ + 0xe2, 0x38, 0xc0, 0xa8, 0x7a, 0x46, 0xc0, 0xa8, /* .8..zF.. */ + 0x7a, 0x01, 0xc3, 0x35, 0x00, 0x35, 0x00, 0x28, /* z..5.5.( */ + 0x75, 0xd2, 0x52, 0x41, 0x01, 0x00, 0x00, 0x01, /* u.RA.... */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x77, /* .......w */ + 0x77, 0x77, 0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, /* ww.googl */ + 0x65, 0x03, 0x63, 0x6f, 0x6d, 0x00, 0x00, 0x01, /* e.com... */ + 0x00, 0x01, /* .. */ +} + +func TestDNSQueryA(t *testing.T) { + dns := loadDNS(testDNSQueryA, t) + if dns == nil { + t.Fatal("Failed to get a pointer to DNS struct") + } + + if uint16(len(dns.Questions)) != dns.QDCount { + t.Fatal("Invalid query decoding, not the right number of questions") + } + + if string(dns.Questions[0].Name) != "www.google.com" { + t.Errorf("Invalid query decoding, expecting 'www.google.com', got '%s'", + dns.Questions[0].Name) + } + if dns.Questions[0].Class != DNSClassIN { + t.Errorf("Invalid query decoding, expecting Class IN, got '%d'", + dns.Questions[0].Class) + } + + if dns.Questions[0].Type != DNSTypeA { + t.Errorf("Invalid query decoding, expecting Type A, got '%d'", + dns.Questions[0].Type) + } +} + +var testDNSRRA = []byte{ + 0x52, 0x54, 0x00, 0xbd, 0x1c, 0x70, 0xfe, 0x54, /* RT...p.T */ + 0x00, 0x3e, 0x00, 0x96, 0x08, 0x00, 0x45, 0x00, /* .>....E. */ + 0x01, 0x24, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11, /* .$..@.@. */ + 0xc4, 0x30, 0xc0, 0xa8, 0x7a, 0x01, 0xc0, 0xa8, /* .0..z... */ + 0x7a, 0x46, 0x00, 0x35, 0xc3, 0x35, 0x01, 0x10, /* zF.5.5.. */ + 0x76, 0xba, 0x52, 0x41, 0x81, 0x80, 0x00, 0x01, /* v.RA.... */ + 0x00, 0x06, 0x00, 0x04, 0x00, 0x04, 0x03, 0x77, /* .......w */ + 0x77, 0x77, 0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, /* ww.googl */ + 0x65, 0x03, 0x63, 0x6f, 0x6d, 0x00, 0x00, 0x01, /* e.com... */ + 0x00, 0x01, 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01, /* ........ */ + 0x00, 0x00, 0x01, 0x2c, 0x00, 0x04, 0x4a, 0x7d, /* ...,..J} */ + 0xc3, 0x67, 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01, /* .g...... */ + 0x00, 0x00, 0x01, 0x2c, 0x00, 0x04, 0x4a, 0x7d, /* ...,..J} */ + 0xc3, 0x68, 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01, /* .h...... */ + 0x00, 0x00, 0x01, 0x2c, 0x00, 0x04, 0x4a, 0x7d, /* ...,..J} */ + 0xc3, 0x69, 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01, /* .i...... */ + 0x00, 0x00, 0x01, 0x2c, 0x00, 0x04, 0x4a, 0x7d, /* ...,..J} */ + 0xc3, 0x6a, 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01, /* .j...... */ + 0x00, 0x00, 0x01, 0x2c, 0x00, 0x04, 0x4a, 0x7d, /* ...,..J} */ + 0xc3, 0x93, 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01, /* ........ */ + 0x00, 0x00, 0x01, 0x2c, 0x00, 0x04, 0x4a, 0x7d, /* ...,..J} */ + 0xc3, 0x63, 0xc0, 0x10, 0x00, 0x02, 0x00, 0x01, /* .c...... */ + 0x00, 0x02, 0xa3, 0x00, 0x00, 0x06, 0x03, 0x6e, /* .......n */ + 0x73, 0x32, 0xc0, 0x10, 0xc0, 0x10, 0x00, 0x02, /* s2...... */ + 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, 0x00, 0x06, /* ........ */ + 0x03, 0x6e, 0x73, 0x33, 0xc0, 0x10, 0xc0, 0x10, /* .ns3.... */ + 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, /* ........ */ + 0x00, 0x06, 0x03, 0x6e, 0x73, 0x31, 0xc0, 0x10, /* ...ns1.. */ + 0xc0, 0x10, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, /* ........ */ + 0xa3, 0x00, 0x00, 0x06, 0x03, 0x6e, 0x73, 0x34, /* .....ns4 */ + 0xc0, 0x10, 0xc0, 0xb0, 0x00, 0x01, 0x00, 0x01, /* ........ */ + 0x00, 0x02, 0xa3, 0x00, 0x00, 0x04, 0xd8, 0xef, /* ........ */ + 0x20, 0x0a, 0xc0, 0x8c, 0x00, 0x01, 0x00, 0x01, /* ....... */ + 0x00, 0x02, 0xa3, 0x00, 0x00, 0x04, 0xd8, 0xef, /* ........ */ + 0x22, 0x0a, 0xc0, 0x9e, 0x00, 0x01, 0x00, 0x01, /* "....... */ + 0x00, 0x02, 0xa3, 0x00, 0x00, 0x04, 0xd8, 0xef, /* ........ */ + 0x24, 0x0a, 0xc0, 0xc2, 0x00, 0x01, 0x00, 0x01, /* $....... */ + 0x00, 0x02, 0xa3, 0x00, 0x00, 0x04, 0xd8, 0xef, /* ........ */ + 0x26, 0x0a, /* &. */ +} + +func TestDNSRRA(t *testing.T) { + dns := loadDNS(testDNSRRA, t) + if dns == nil { + t.Fatal("Failed to get a pointer to DNS struct") + return + } + + if uint16(len(dns.Questions)) != dns.QDCount { + t.Fatal("Invalid query decoding, not the right number of questions") + } else if uint16(len(dns.Answers)) != dns.ANCount { + t.Fatal("Invalid query decoding, not the right number of answers") + } else if uint16(len(dns.Authorities)) != dns.NSCount { + t.Fatal("Invalid query decoding, not the right number of authorities") + } else if uint16(len(dns.Additionals)) != dns.ARCount { + t.Fatal("Invalid query decoding, not the right number of additionals info") + } + + if string(dns.Questions[0].Name) != "www.google.com" { + t.Errorf("Invalid query decoding, expecting 'www.google.com', got '%s'", + dns.Questions[0].Name) + } + if string(dns.Answers[0].Name) != "www.google.com" { + t.Errorf("Invalid query decoding, expecting 'www.google.com', got '%d'", + dns.Questions[0].Class) + } + if dns.Answers[0].Class != DNSClassIN { + t.Errorf("Invalid query decoding, expecting Class IN, got '%d'", + dns.Questions[0].Class) + } + if dns.Answers[0].Type != DNSTypeA { + t.Errorf("Invalid query decoding, expecting Type A, got '%d'", + dns.Questions[0].Type) + } + if !dns.Answers[0].IP.Equal([]byte{74, 125, 195, 103}) { + t.Errorf("Invalid query decoding, invalid IP address,"+ + " expecting '74.125.195.103', got '%s'", + dns.Answers[0].IP.String()) + } + if len(dns.Answers) != 6 { + t.Errorf("No correct number of answers, expecting 6, go '%d'", + len(dns.Answers)) + } + if len(dns.Authorities) != 4 { + t.Errorf("No correct number of answers, expecting 4, go '%d'", + len(dns.Answers)) + } + if len(dns.Additionals) != 4 { + t.Errorf("No correct number of answers, expecting 4, go '%d'", + len(dns.Answers)) + } else { + for i, want := range []string{ + "ns1.google.com", + "ns2.google.com", + "ns3.google.com", + "ns4.google.com", + } { + if got := string(dns.Additionals[i].Name); got != want { + t.Errorf("got %q want %q", got, want) + } + } + } +} + +var testDNSAAAA = []byte{ + 0x52, 0x54, 0x00, 0xbd, 0x1c, 0x70, 0xfe, 0x54, /* RT...p.T */ + 0x00, 0x3e, 0x00, 0x96, 0x08, 0x00, 0x45, 0x00, /* .>....E. */ + 0x00, 0xe0, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11, /* ....@.@. */ + 0xc4, 0x74, 0xc0, 0xa8, 0x7a, 0x01, 0xc0, 0xa8, /* .t..z... */ + 0x7a, 0x46, 0x00, 0x35, 0xdb, 0x13, 0x00, 0xcc, /* zF.5.... */ + 0x76, 0x76, 0xf3, 0x03, 0x81, 0x80, 0x00, 0x01, /* vv...... */ + 0x00, 0x01, 0x00, 0x04, 0x00, 0x04, 0x03, 0x77, /* .......w */ + 0x77, 0x77, 0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, /* ww.googl */ + 0x65, 0x03, 0x63, 0x6f, 0x6d, 0x00, 0x00, 0x1c, /* e.com... */ + 0x00, 0x01, 0xc0, 0x0c, 0x00, 0x1c, 0x00, 0x01, /* ........ */ + 0x00, 0x00, 0x01, 0x2c, 0x00, 0x10, 0x2a, 0x00, /* ...,..*. */ + 0x14, 0x50, 0x40, 0x0c, 0x0c, 0x01, 0x00, 0x00, /* .P@..... */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x69, 0xc0, 0x10, /* .....i.. */ + 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, /* ........ */ + 0x00, 0x06, 0x03, 0x6e, 0x73, 0x34, 0xc0, 0x10, /* ...ns4.. */ + 0xc0, 0x10, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, /* ........ */ + 0xa3, 0x00, 0x00, 0x06, 0x03, 0x6e, 0x73, 0x32, /* .....ns2 */ + 0xc0, 0x10, 0xc0, 0x10, 0x00, 0x02, 0x00, 0x01, /* ........ */ + 0x00, 0x02, 0xa3, 0x00, 0x00, 0x06, 0x03, 0x6e, /* .......n */ + 0x73, 0x31, 0xc0, 0x10, 0xc0, 0x10, 0x00, 0x02, /* s1...... */ + 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, 0x00, 0x06, /* ........ */ + 0x03, 0x6e, 0x73, 0x33, 0xc0, 0x10, 0xc0, 0x6c, /* .ns3...l */ + 0x00, 0x01, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, /* ........ */ + 0x00, 0x04, 0xd8, 0xef, 0x20, 0x0a, 0xc0, 0x5a, /* .... ..Z */ + 0x00, 0x01, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, /* ........ */ + 0x00, 0x04, 0xd8, 0xef, 0x22, 0x0a, 0xc0, 0x7e, /* ...."..~ */ + 0x00, 0x01, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, /* ........ */ + 0x00, 0x04, 0xd8, 0xef, 0x24, 0x0a, 0xc0, 0x48, /* ....$..H */ + 0x00, 0x01, 0x00, 0x01, 0x00, 0x02, 0xa3, 0x00, /* ........ */ + 0x00, 0x04, 0xd8, 0xef, 0x26, 0x0a, /* ....&. */ +} + +func TestDNSAAAA(t *testing.T) { + dns := loadDNS(testDNSAAAA, t) + if dns == nil { + t.Error("Failed to get a pointer to DNS struct") + return + } + + if len(dns.Questions) != 1 { + t.Error("Invalid number of question") + return + } + if dns.Questions[0].Type != DNSTypeAAAA { + t.Errorf("Invalid question, Type is not AAAA, found %d", + dns.Questions[0].Type) + } + + if len(dns.Answers) != 1 { + t.Error("Invalid number of answers") + } + if !dns.Answers[0].IP.Equal([]byte{0x2a, 0x00, 0x14, 0x50, 0x40, + 0x0c, 0x0c, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x69}) { + t.Error("Invalid IP address, found ", + dns.Answers[0].IP.String()) + } +} + +var testDNSMXSOA = []byte{ + 0x52, 0x54, 0x00, 0xbd, 0x1c, 0x70, 0xfe, 0x54, /* RT...p.T */ + 0x00, 0x3e, 0x00, 0x96, 0x08, 0x00, 0x45, 0x00, /* .>....E. */ + 0x00, 0x6e, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11, /* .n..@.@. */ + 0xc4, 0xe6, 0xc0, 0xa8, 0x7a, 0x01, 0xc0, 0xa8, /* ....z... */ + 0x7a, 0x46, 0x00, 0x35, 0x9c, 0x60, 0x00, 0x5a, /* zF.5.`.Z */ + 0x76, 0x04, 0xfc, 0x7a, 0x81, 0x80, 0x00, 0x01, /* v..z.... */ + 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x03, 0x77, /* .......w */ + 0x77, 0x77, 0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, /* ww.googl */ + 0x65, 0x03, 0x63, 0x6f, 0x6d, 0x00, 0x00, 0x0f, /* e.com... */ + 0x00, 0x01, 0xc0, 0x10, 0x00, 0x06, 0x00, 0x01, /* ........ */ + 0x00, 0x00, 0x00, 0x3c, 0x00, 0x26, 0x03, 0x6e, /* ...<.&.n */ + 0x73, 0x31, 0xc0, 0x10, 0x09, 0x64, 0x6e, 0x73, /* s1...dns */ + 0x2d, 0x61, 0x64, 0x6d, 0x69, 0x6e, 0xc0, 0x10, /* -admin.. */ + 0x00, 0x17, 0x9f, 0x64, 0x00, 0x00, 0x1c, 0x20, /* ...d... */ + 0x00, 0x00, 0x07, 0x08, 0x00, 0x12, 0x75, 0x00, /* ......u. */ + 0x00, 0x00, 0x01, 0x2c, /* ..., */ +} + +func TestDNSMXSOA(t *testing.T) { + dns := loadDNS(testDNSMXSOA, t) + if dns == nil { + t.Error("Failed to get a pointer to DNS struct") + return + } + + if len(dns.Authorities) != 1 { + t.Error("Invalid number of authoritative answers, found ", + len(dns.Authorities)) + return + } +} + +func BenchmarkDecodeDNS(b *testing.B) { + for i := 0; i < b.N; i++ { + gopacket.NewPacket(testDNSQueryA, LinkTypeEthernet, gopacket.NoCopy) + } +} +func BenchmarkDecodeDNSLayer(b *testing.B) { + var dns DNS + for i := 0; i < b.N; i++ { + dns.DecodeFromBytes(testDNSAAAA[ /*eth*/ 14+ /*ipv4*/ 20+ /*udp*/ 8:], gopacket.NilDecodeFeedback) + } +} +func TestDNSDoesNotMalloc(t *testing.T) { + var dns DNS + if n := testing.AllocsPerRun(1000, func() { + if err := dns.DecodeFromBytes(testDNSAAAA[ /*eth*/ 14+ /*ipv4*/ 20+ /*udp*/ 8:], gopacket.NilDecodeFeedback); err != nil { + t.Fatal(err) + } + }); n > 0 { + t.Error(n, "mallocs decoding DNS") + } +} |