| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "garnet/bin/mdns/service/dns_reading.h" |
| #include "garnet/bin/mdns/service/packet_reader.h" |
| #include "gtest/gtest.h" |
| |
| namespace mdns { |
| namespace test { |
| |
| // Note: Most of the test data in this file was captured from error messages |
| // produced by the mdns service when it failed to recognized messages. The |
| // parsed messages appearing in comments were generated using the ostream |
| // overloads in dns_formatting.h once the parser was fixed in each case. |
| // TODO(dalesat): Provide an easy way to generate new test cases. |
| |
| // Tests parsing of a message that failed in early development. |
| TEST(DnsReadingTest, Regression0) { |
| /* |
| header: |
| id: 0 |
| flags: 0x0000 |
| questions: |
| [0] |
| name: |
| 6.5.4.3.2.1.e.f.d.4.0.0.4.5.0.5.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa. |
| type: PTR |
| class: IN |
| unicast_response: 0 |
| additionals: |
| [0] |
| name: |
| type: OPT |
| class: CLASS 1440 |
| cache_flush: 0 |
| time_to_live: 4500 |
| options: |
| ... |
| */ |
| std::vector<uint8_t> buffer{ |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, |
| 0x01, 0x36, 0x01, 0x35, 0x01, 0x34, 0x01, 0x33, 0x01, 0x32, 0x01, 0x31, |
| 0x01, 0x65, 0x01, 0x66, 0x01, 0x64, 0x01, 0x34, 0x01, 0x30, 0x01, 0x30, |
| 0x01, 0x34, 0x01, 0x35, 0x01, 0x30, 0x01, 0x35, 0x01, 0x30, 0x01, 0x30, |
| 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, |
| 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01, 0x38, |
| 0x01, 0x65, 0x01, 0x66, 0x03, 0x69, 0x70, 0x36, 0x04, 0x61, 0x72, 0x70, |
| 0x61, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, 0x29, 0x05, 0xa0, 0x00, |
| 0x00, 0x11, 0x94, 0x00, 0x12, 0x00, 0x04, 0x00, 0x0e, 0x00, 0x05, 0x80, |
| 0xe6, 0x50, 0x10, 0xf3, 0x12, 0xee, 0x62, 0x50, 0x1e, 0x88, 0x4c}; |
| |
| PacketReader reader(buffer); |
| DnsMessage message; |
| reader >> message; |
| EXPECT_TRUE(reader.healthy()); |
| EXPECT_TRUE(reader.complete()); |
| } |
| |
| // Tests parsing of a message that failed in early development. |
| TEST(DnsReadingTest, Regression1) { |
| /* |
| header: |
| id: 0 |
| flags: 0x8400 |
| answers: |
| [0] |
| name: _services._dns-sd._udp.local. |
| type: PTR |
| class: IN |
| cache_flush: 0 |
| time_to_live: 4500 |
| pointer_domain_name_: _mediaremotetv._tcp.local. |
| [1] |
| name: _mediaremotetv._tcp.local. |
| type: PTR |
| class: IN |
| cache_flush: 0 |
| time_to_live: 4500 |
| pointer_domain_name_: Apple TV._mediaremotetv._tcp.local. |
| [2] |
| name: Apple TV._device-info._tcp.local. |
| type: TXT |
| class: IN |
| cache_flush: 0 |
| time_to_live: 4500 |
| text: |
| "model=J42dAP" |
| [3] |
| name: _services._dns-sd._udp.local. |
| type: PTR |
| class: IN |
| cache_flush: 0 |
| time_to_live: 4500 |
| pointer_domain_name_: _airplay._tcp.local. |
| [4] |
| name: _airplay._tcp.local. |
| type: PTR |
| class: IN |
| cache_flush: 0 |
| time_to_live: 4500 |
| pointer_domain_name_: Apple TV._airplay._tcp.local. |
| [5] |
| name: _services._dns-sd._udp.local. |
| type: PTR |
| class: IN |
| cache_flush: 0 |
| time_to_live: 4500 |
| pointer_domain_name_: _raop._tcp.local. |
| [6] |
| name: _raop._tcp.local. |
| type: PTR |
| class: IN |
| cache_flush: 0 |
| time_to_live: 4500 |
| pointer_domain_name_: C869CD3A48FF@Apple TV._raop._tcp.local. |
| [7] |
| name: Apple TV._mediaremotetv._tcp.local. |
| type: TXT |
| class: IN |
| cache_flush: 1 |
| time_to_live: 4500 |
| text: |
| "UniqueIdentifier=C30116AB-B0E9-4C5D-9186-E691C17A73C3" |
| "Name=Apple TV" |
| "SystemBuildVersion=14W265" |
| "ModelName=" |
| "AllowPairing=YES" |
| [8] |
| name: Apple TV._mediaremotetv._tcp.local. |
| type: SRV |
| class: IN |
| cache_flush: 1 |
| time_to_live: 120 |
| priority: 0 |
| weight: 0 |
| port: 58387 |
| target: Apple-TV-3.local. |
| [9] |
| name: Apple TV._airplay._tcp.local. |
| type: TXT |
| class: IN |
| cache_flush: 1 |
| time_to_live: 4500 |
| text: |
| "deviceid=C8:69:CD:3A:48:FF" |
| "features=0x5A7FFFF7,0xCDE" |
| "flags=0x244" |
| "model=AppleTV5,3" |
| "pi=cf7f16a6-bb37-4026-9785-652f44edc2b3" |
| "pk=b90130a3383841ba9111a88630f08ff24aac2b02d4c73dc6313097100a3b84b4" |
| "psi=C987E66D-726E-4655-9D66-C899A54242B0" |
| "srcvers=320.20" |
| "vv=2" |
| [10] |
| name: C869CD3A48FF@Apple TV._raop._tcp.local. |
| type: TXT |
| class: IN |
| cache_flush: 1 |
| time_to_live: 4500 |
| text: |
| "cn=0,1,2,3" |
| "da=true" |
| "et=0,3,5" |
| "ft=0x5A7FFFF7,0xCDE" |
| "sf=0x244" |
| "md=0,1,2" |
| "am=AppleTV5,3" |
| "pk=b90130a3383841ba9111a88630f08ff24aac2b02d4c73dc6313097100a3b84b4" |
| "tp=UDP" |
| "vn=65537" |
| "vs=320.20" |
| "vv=2" |
| [11] |
| name: Apple TV._airplay._tcp.local. |
| type: SRV |
| class: IN |
| cache_flush: 1 |
| time_to_live: 120 |
| priority: 0 |
| weight: 0 |
| port: 7000 |
| target: Apple-TV-3.local. |
| [12] |
| name: C869CD3A48FF@Apple TV._raop._tcp.local. |
| type: SRV |
| class: IN |
| cache_flush: 1 |
| time_to_live: 120 |
| priority: 0 |
| weight: 0 |
| port: 7000 |
| target: Apple-TV-3.local. |
| [13] |
| name: Apple-TV-3.local. |
| type: AAAA |
| class: IN |
| cache_flush: 1 |
| time_to_live: 120 |
| address: [80fe::6e04:7fdf:9096:7f33] |
| [14] |
| name: Apple-TV-3.local. |
| type: A |
| class: IN |
| cache_flush: 1 |
| time_to_live: 120 |
| address: 10.0.0.108 |
| additionals: |
| [0] |
| name: Apple TV._mediaremotetv._tcp.local. |
| type: NSEC |
| class: IN |
| cache_flush: 1 |
| time_to_live: 4500 |
| next_domain: Apple TV._mediaremotetv._tcp.local. |
| bits: |
| 0000 00 05 00 00 80 00 40 ......@ |
| [1] |
| name: Apple TV._airplay._tcp.local. |
| type: NSEC |
| class: IN |
| cache_flush: 1 |
| time_to_live: 4500 |
| next_domain: Apple TV._airplay._tcp.local. |
| bits: |
| 0000 00 05 00 00 80 00 40 ......@ |
| [2] |
| name: C869CD3A48FF@Apple TV._raop._tcp.local. |
| type: NSEC |
| class: IN |
| cache_flush: 1 |
| time_to_live: 4500 |
| next_domain: C869CD3A48FF@Apple TV._raop._tcp.local. |
| bits: |
| 0000 00 05 00 00 80 00 40 ......@ |
| [3] |
| name: Apple-TV-3.local. |
| type: NSEC |
| class: IN |
| cache_flush: 1 |
| time_to_live: 120 |
| next_domain: Apple-TV-3.local. |
| bits: |
| 0000 00 04 40 00 00 08 ..@... |
| */ |
| std::vector<uint8_t> buffer{ |
| 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x04, |
| 0x09, 0x5f, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x73, 0x07, 0x5f, |
| 0x64, 0x6e, 0x73, 0x2d, 0x73, 0x64, 0x04, 0x5f, 0x75, 0x64, 0x70, 0x05, |
| 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, |
| 0x11, 0x94, 0x00, 0x16, 0x0e, 0x5f, 0x6d, 0x65, 0x64, 0x69, 0x61, 0x72, |
| 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x74, 0x76, 0x04, 0x5f, 0x74, 0x63, 0x70, |
| 0xc0, 0x23, 0xc0, 0x34, 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, 0x11, 0x94, |
| 0x00, 0x0b, 0x08, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, 0x54, 0x56, 0xc0, |
| 0x34, 0x08, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, 0x54, 0x56, 0x0c, 0x5f, |
| 0x64, 0x65, 0x76, 0x69, 0x63, 0x65, 0x2d, 0x69, 0x6e, 0x66, 0x6f, 0xc0, |
| 0x43, 0x00, 0x10, 0x00, 0x01, 0x00, 0x00, 0x11, 0x94, 0x00, 0x0d, 0x0c, |
| 0x6d, 0x6f, 0x64, 0x65, 0x6c, 0x3d, 0x4a, 0x34, 0x32, 0x64, 0x41, 0x50, |
| 0xc0, 0x0c, 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, 0x11, 0x94, 0x00, 0x0b, |
| 0x08, 0x5f, 0x61, 0x69, 0x72, 0x70, 0x6c, 0x61, 0x79, 0xc0, 0x43, 0xc0, |
| 0x9c, 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, 0x11, 0x94, 0x00, 0x0b, 0x08, |
| 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, 0x54, 0x56, 0xc0, 0x9c, 0xc0, 0x0c, |
| 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, 0x11, 0x94, 0x00, 0x08, 0x05, 0x5f, |
| 0x72, 0x61, 0x6f, 0x70, 0xc0, 0x43, 0xc0, 0xca, 0x00, 0x0c, 0x00, 0x01, |
| 0x00, 0x00, 0x11, 0x94, 0x00, 0x18, 0x15, 0x43, 0x38, 0x36, 0x39, 0x43, |
| 0x44, 0x33, 0x41, 0x34, 0x38, 0x46, 0x46, 0x40, 0x41, 0x70, 0x70, 0x6c, |
| 0x65, 0x20, 0x54, 0x56, 0xc0, 0xca, 0xc0, 0x56, 0x00, 0x10, 0x80, 0x01, |
| 0x00, 0x00, 0x11, 0x94, 0x00, 0x7a, 0x35, 0x55, 0x6e, 0x69, 0x71, 0x75, |
| 0x65, 0x49, 0x64, 0x65, 0x6e, 0x74, 0x69, 0x66, 0x69, 0x65, 0x72, 0x3d, |
| 0x43, 0x33, 0x30, 0x31, 0x31, 0x36, 0x41, 0x42, 0x2d, 0x42, 0x30, 0x45, |
| 0x39, 0x2d, 0x34, 0x43, 0x35, 0x44, 0x2d, 0x39, 0x31, 0x38, 0x36, 0x2d, |
| 0x45, 0x36, 0x39, 0x31, 0x43, 0x31, 0x37, 0x41, 0x37, 0x33, 0x43, 0x33, |
| 0x0d, 0x4e, 0x61, 0x6d, 0x65, 0x3d, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, |
| 0x54, 0x56, 0x19, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6d, 0x42, 0x75, 0x69, |
| 0x6c, 0x64, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x3d, 0x31, 0x34, |
| 0x57, 0x32, 0x36, 0x35, 0x0a, 0x4d, 0x6f, 0x64, 0x65, 0x6c, 0x4e, 0x61, |
| 0x6d, 0x65, 0x3d, 0x10, 0x41, 0x6c, 0x6c, 0x6f, 0x77, 0x50, 0x61, 0x69, |
| 0x72, 0x69, 0x6e, 0x67, 0x3d, 0x59, 0x45, 0x53, 0xc0, 0x56, 0x00, 0x21, |
| 0x80, 0x01, 0x00, 0x00, 0x00, 0x78, 0x00, 0x13, 0x00, 0x00, 0x00, 0x00, |
| 0xe4, 0x13, 0x0a, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x2d, 0x54, 0x56, 0x2d, |
| 0x33, 0xc0, 0x23, 0xc0, 0xb3, 0x00, 0x10, 0x80, 0x01, 0x00, 0x00, 0x11, |
| 0x94, 0x00, 0xfb, 0x1a, 0x64, 0x65, 0x76, 0x69, 0x63, 0x65, 0x69, 0x64, |
| 0x3d, 0x43, 0x38, 0x3a, 0x36, 0x39, 0x3a, 0x43, 0x44, 0x3a, 0x33, 0x41, |
| 0x3a, 0x34, 0x38, 0x3a, 0x46, 0x46, 0x19, 0x66, 0x65, 0x61, 0x74, 0x75, |
| 0x72, 0x65, 0x73, 0x3d, 0x30, 0x78, 0x35, 0x41, 0x37, 0x46, 0x46, 0x46, |
| 0x46, 0x37, 0x2c, 0x30, 0x78, 0x43, 0x44, 0x45, 0x0b, 0x66, 0x6c, 0x61, |
| 0x67, 0x73, 0x3d, 0x30, 0x78, 0x32, 0x34, 0x34, 0x10, 0x6d, 0x6f, 0x64, |
| 0x65, 0x6c, 0x3d, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x54, 0x56, 0x35, 0x2c, |
| 0x33, 0x27, 0x70, 0x69, 0x3d, 0x63, 0x66, 0x37, 0x66, 0x31, 0x36, 0x61, |
| 0x36, 0x2d, 0x62, 0x62, 0x33, 0x37, 0x2d, 0x34, 0x30, 0x32, 0x36, 0x2d, |
| 0x39, 0x37, 0x38, 0x35, 0x2d, 0x36, 0x35, 0x32, 0x66, 0x34, 0x34, 0x65, |
| 0x64, 0x63, 0x32, 0x62, 0x33, 0x43, 0x70, 0x6b, 0x3d, 0x62, 0x39, 0x30, |
| 0x31, 0x33, 0x30, 0x61, 0x33, 0x33, 0x38, 0x33, 0x38, 0x34, 0x31, 0x62, |
| 0x61, 0x39, 0x31, 0x31, 0x31, 0x61, 0x38, 0x38, 0x36, 0x33, 0x30, 0x66, |
| 0x30, 0x38, 0x66, 0x66, 0x32, 0x34, 0x61, 0x61, 0x63, 0x32, 0x62, 0x30, |
| 0x32, 0x64, 0x34, 0x63, 0x37, 0x33, 0x64, 0x63, 0x36, 0x33, 0x31, 0x33, |
| 0x30, 0x39, 0x37, 0x31, 0x30, 0x30, 0x61, 0x33, 0x62, 0x38, 0x34, 0x62, |
| 0x34, 0x28, 0x70, 0x73, 0x69, 0x3d, 0x43, 0x39, 0x38, 0x37, 0x45, 0x36, |
| 0x36, 0x44, 0x2d, 0x37, 0x32, 0x36, 0x45, 0x2d, 0x34, 0x36, 0x35, 0x35, |
| 0x2d, 0x39, 0x44, 0x36, 0x36, 0x2d, 0x43, 0x38, 0x39, 0x39, 0x41, 0x35, |
| 0x34, 0x32, 0x34, 0x32, 0x42, 0x30, 0x0e, 0x73, 0x72, 0x63, 0x76, 0x65, |
| 0x72, 0x73, 0x3d, 0x33, 0x32, 0x30, 0x2e, 0x32, 0x30, 0x04, 0x76, 0x76, |
| 0x3d, 0x32, 0xc0, 0xde, 0x00, 0x10, 0x80, 0x01, 0x00, 0x00, 0x11, 0x94, |
| 0x00, 0xb3, 0x0a, 0x63, 0x6e, 0x3d, 0x30, 0x2c, 0x31, 0x2c, 0x32, 0x2c, |
| 0x33, 0x07, 0x64, 0x61, 0x3d, 0x74, 0x72, 0x75, 0x65, 0x08, 0x65, 0x74, |
| 0x3d, 0x30, 0x2c, 0x33, 0x2c, 0x35, 0x13, 0x66, 0x74, 0x3d, 0x30, 0x78, |
| 0x35, 0x41, 0x37, 0x46, 0x46, 0x46, 0x46, 0x37, 0x2c, 0x30, 0x78, 0x43, |
| 0x44, 0x45, 0x08, 0x73, 0x66, 0x3d, 0x30, 0x78, 0x32, 0x34, 0x34, 0x08, |
| 0x6d, 0x64, 0x3d, 0x30, 0x2c, 0x31, 0x2c, 0x32, 0x0d, 0x61, 0x6d, 0x3d, |
| 0x41, 0x70, 0x70, 0x6c, 0x65, 0x54, 0x56, 0x35, 0x2c, 0x33, 0x43, 0x70, |
| 0x6b, 0x3d, 0x62, 0x39, 0x30, 0x31, 0x33, 0x30, 0x61, 0x33, 0x33, 0x38, |
| 0x33, 0x38, 0x34, 0x31, 0x62, 0x61, 0x39, 0x31, 0x31, 0x31, 0x61, 0x38, |
| 0x38, 0x36, 0x33, 0x30, 0x66, 0x30, 0x38, 0x66, 0x66, 0x32, 0x34, 0x61, |
| 0x61, 0x63, 0x32, 0x62, 0x30, 0x32, 0x64, 0x34, 0x63, 0x37, 0x33, 0x64, |
| 0x63, 0x36, 0x33, 0x31, 0x33, 0x30, 0x39, 0x37, 0x31, 0x30, 0x30, 0x61, |
| 0x33, 0x62, 0x38, 0x34, 0x62, 0x34, 0x06, 0x74, 0x70, 0x3d, 0x55, 0x44, |
| 0x50, 0x08, 0x76, 0x6e, 0x3d, 0x36, 0x35, 0x35, 0x33, 0x37, 0x09, 0x76, |
| 0x73, 0x3d, 0x33, 0x32, 0x30, 0x2e, 0x32, 0x30, 0x04, 0x76, 0x76, 0x3d, |
| 0x32, 0xc0, 0xb3, 0x00, 0x21, 0x80, 0x01, 0x00, 0x00, 0x00, 0x78, 0x00, |
| 0x08, 0x00, 0x00, 0x00, 0x00, 0x1b, 0x58, 0xc1, 0x8e, 0xc0, 0xde, 0x00, |
| 0x21, 0x80, 0x01, 0x00, 0x00, 0x00, 0x78, 0x00, 0x08, 0x00, 0x00, 0x00, |
| 0x00, 0x1b, 0x58, 0xc1, 0x8e, 0xc1, 0x8e, 0x00, 0x1c, 0x80, 0x01, 0x00, |
| 0x00, 0x00, 0x78, 0x00, 0x10, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x04, 0x6e, 0xdf, 0x7f, 0x96, 0x90, 0x33, 0x7f, 0xc1, 0x8e, 0x00, |
| 0x01, 0x80, 0x01, 0x00, 0x00, 0x00, 0x78, 0x00, 0x04, 0x0a, 0x00, 0x00, |
| 0x6c, 0xc0, 0x56, 0x00, 0x2f, 0x80, 0x01, 0x00, 0x00, 0x11, 0x94, 0x00, |
| 0x09, 0xc0, 0x56, 0x00, 0x05, 0x00, 0x00, 0x80, 0x00, 0x40, 0xc0, 0xb3, |
| 0x00, 0x2f, 0x80, 0x01, 0x00, 0x00, 0x11, 0x94, 0x00, 0x09, 0xc0, 0xb3, |
| 0x00, 0x05, 0x00, 0x00, 0x80, 0x00, 0x40, 0xc0, 0xde, 0x00, 0x2f, 0x80, |
| 0x01, 0x00, 0x00, 0x11, 0x94, 0x00, 0x09, 0xc0, 0xde, 0x00, 0x05, 0x00, |
| 0x00, 0x80, 0x00, 0x40, 0xc1, 0x8e, 0x00, 0x2f, 0x80, 0x01, 0x00, 0x00, |
| 0x00, 0x78, 0x00, 0x08, 0xc1, 0x8e, 0x00, 0x04, 0x40, 0x00, 0x00, 0x08, |
| }; |
| |
| PacketReader reader(buffer); |
| DnsMessage message; |
| reader >> message; |
| EXPECT_TRUE(reader.healthy()); |
| EXPECT_TRUE(reader.complete()); |
| } |
| |
| // Tests parsing of a message. |
| TEST(DnsReadingTest, SimpleQuestion) { |
| /* |
| header: |
| id: 0 |
| flags: 0x0000 |
| questions: |
| [0] |
| name: _fuchsia._tcp.local. |
| type: PTR |
| class: IN |
| unicast_response: 0 |
| */ |
| std::vector<uint8_t> buffer{ |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x08, 0x5f, 0x66, 0x75, 0x63, 0x68, 0x73, 0x69, |
| 0x61, 0x04, 0x5f, 0x74, 0x63, 0x70, 0x05, 0x6c, 0x6f, 0x63, |
| 0x61, 0x6c, 0x00, 0x00, 0x0c, 0x00, 0x01, |
| }; |
| |
| PacketReader reader(buffer); |
| DnsMessage message; |
| reader >> message; |
| EXPECT_TRUE(reader.healthy()); |
| EXPECT_TRUE(reader.complete()); |
| } |
| |
| // Tests parsing of an ill-formed message that prevously caused a crash. |
| // NET-1962 - issue discovered by fuzzer. |
| TEST(DnsReadingTest, RegressionNET1962) { |
| std::vector<uint8_t> buffer{ |
| 0x50, 0xf1, 0x09, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x10, 0x40, 0x02, |
| }; |
| |
| PacketReader reader(buffer); |
| DnsMessage message; |
| reader >> message; |
| EXPECT_FALSE(reader.healthy()); |
| EXPECT_FALSE(reader.complete()); |
| } |
| |
| } // test |
| } // namespace mdns |
