ares-test-parse-soa.cc (5071B)
1 /* MIT License 2 * 3 * Copyright (c) The c-ares project and its contributors 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a copy 6 * of this software and associated documentation files (the "Software"), to deal 7 * in the Software without restriction, including without limitation the rights 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 * copies of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 * 24 * SPDX-License-Identifier: MIT 25 */ 26 #include "ares-test.h" 27 #include "dns-proto.h" 28 29 #include <sstream> 30 #include <vector> 31 32 namespace ares { 33 namespace test { 34 35 TEST_F(LibraryTest, ParseSoaReplyOK) { 36 DNSPacket pkt; 37 pkt.set_qid(0x1234).set_response().set_aa() 38 .add_question(new DNSQuestion("example.com", T_SOA)) 39 .add_answer(new DNSSoaRR("example.com", 100, 40 "soa1.example.com", "fred.example.com", 41 1, 2, 3, 4, 5)); 42 std::vector<byte> data = pkt.data(); 43 44 struct ares_soa_reply* soa = nullptr; 45 EXPECT_EQ(ARES_SUCCESS, ares_parse_soa_reply(data.data(), (int)data.size(), &soa)); 46 ASSERT_NE(nullptr, soa); 47 EXPECT_EQ("soa1.example.com", std::string(soa->nsname)); 48 EXPECT_EQ("fred.example.com", std::string(soa->hostmaster)); 49 EXPECT_EQ((unsigned int)1, soa->serial); 50 EXPECT_EQ((unsigned int)2, soa->refresh); 51 EXPECT_EQ((unsigned int)3, soa->retry); 52 EXPECT_EQ((unsigned int)4, soa->expire); 53 EXPECT_EQ((unsigned int)5, soa->minttl); 54 ares_free_data(soa); 55 } 56 57 TEST_F(LibraryTest, ParseSoaReplyErrors) { 58 DNSPacket pkt; 59 pkt.set_qid(0x1234).set_response().set_aa() 60 .add_question(new DNSQuestion("example.com", T_SOA)) 61 .add_answer(new DNSSoaRR("example.com", 100, 62 "soa1.example.com", "fred.example.com", 63 1, 2, 3, 4, 5)); 64 std::vector<byte> data; 65 struct ares_soa_reply* soa = nullptr; 66 67 // No question. 68 pkt.questions_.clear(); 69 data = pkt.data(); 70 EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), (int)data.size(), &soa)); 71 pkt.add_question(new DNSQuestion("example.com", T_SOA)); 72 73 #ifdef DISABLED 74 // Question != answer 75 pkt.questions_.clear(); 76 pkt.add_question(new DNSQuestion("Axample.com", T_SOA)); 77 data = pkt.data(); 78 EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), (int)data.size(), &soa)); 79 pkt.questions_.clear(); 80 pkt.add_question(new DNSQuestion("example.com", T_SOA)); 81 #endif 82 83 // Two questions 84 pkt.add_question(new DNSQuestion("example.com", T_SOA)); 85 data = pkt.data(); 86 EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), (int)data.size(), &soa)); 87 pkt.questions_.clear(); 88 pkt.add_question(new DNSQuestion("example.com", T_SOA)); 89 90 // Wrong sort of answer. 91 pkt.answers_.clear(); 92 pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); 93 data = pkt.data(); 94 EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), (int)data.size(), &soa)); 95 pkt.answers_.clear(); 96 pkt.add_answer(new DNSSoaRR("example.com", 100, 97 "soa1.example.com", "fred.example.com", 98 1, 2, 3, 4, 5)); 99 100 // No answer. 101 pkt.answers_.clear(); 102 data = pkt.data(); 103 EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), (int)data.size(), &soa)); 104 pkt.add_answer(new DNSSoaRR("example.com", 100, 105 "soa1.example.com", "fred.example.com", 106 1, 2, 3, 4, 5)); 107 108 // Truncated packets. 109 data = pkt.data(); 110 for (size_t len = 1; len < data.size(); len++) { 111 EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), (int)len, &soa)); 112 } 113 114 // Negative Length 115 EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), -1, &soa)); 116 } 117 118 TEST_F(LibraryTest, ParseSoaReplyAllocFail) { 119 DNSPacket pkt; 120 pkt.set_qid(0x1234).set_response().set_aa() 121 .add_question(new DNSQuestion("example.com", T_SOA)) 122 .add_answer(new DNSSoaRR("example.com", 100, 123 "soa1.example.com", "fred.example.com", 124 1, 2, 3, 4, 5)); 125 std::vector<byte> data = pkt.data(); 126 struct ares_soa_reply* soa = nullptr; 127 128 for (int ii = 1; ii <= 5; ii++) { 129 ClearFails(); 130 SetAllocFail(ii); 131 EXPECT_EQ(ARES_ENOMEM, ares_parse_soa_reply(data.data(), (int)data.size(), &soa)) << ii; 132 } 133 } 134 135 } // namespace test 136 } // namespace ares