From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 20:24:20 +0200 Subject: Adding upstream version 14.2.21. Signed-off-by: Daniel Baumann --- src/c-ares/test/ares-test-parse-aaaa.cc | 191 ++++++++++++++++++++++++++++++++ 1 file changed, 191 insertions(+) create mode 100644 src/c-ares/test/ares-test-parse-aaaa.cc (limited to 'src/c-ares/test/ares-test-parse-aaaa.cc') diff --git a/src/c-ares/test/ares-test-parse-aaaa.cc b/src/c-ares/test/ares-test-parse-aaaa.cc new file mode 100644 index 00000000..9d0457e6 --- /dev/null +++ b/src/c-ares/test/ares-test-parse-aaaa.cc @@ -0,0 +1,191 @@ +#include "ares-test.h" +#include "dns-proto.h" + +#include +#include + +namespace ares { +namespace test { + +TEST_F(LibraryTest, ParseAaaaReplyOK) { + DNSPacket pkt; + pkt.set_qid(0x1234).set_response().set_aa() + .add_question(new DNSQuestion("example.com", ns_t_aaaa)) + .add_answer(new DNSAaaaRR("example.com", 100, + {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); + std::vector data = pkt.data(); + struct hostent *host = nullptr; + struct ares_addr6ttl info[5]; + int count = 5; + EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(1, count); + EXPECT_EQ(100, info[0].ttl); + EXPECT_EQ(0x01, info[0].ip6addr._S6_un._S6_u8[0]); + EXPECT_EQ(0x02, info[0].ip6addr._S6_un._S6_u8[4]); + ASSERT_NE(nullptr, host); + std::stringstream ss; + ss << HostEnt(host); + EXPECT_EQ("{'example.com' aliases=[] addrs=[0101:0101:0202:0202:0303:0303:0404:0404]}", ss.str()); + ares_free_hostent(host); + + // Repeat without providing places to put the results + count = 0; + EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), + nullptr, info, &count)); +} + +TEST_F(LibraryTest, ParseAaaaReplyCname) { + DNSPacket pkt; + pkt.set_qid(0x1234).set_response().set_aa() + .add_question(new DNSQuestion("example.com", ns_t_aaaa)) + .add_answer(new DNSCnameRR("example.com", 50, "c.example.com")) + .add_answer(new DNSAaaaRR("c.example.com", 100, + {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); + std::vector data = pkt.data(); + struct hostent *host = nullptr; + struct ares_addr6ttl info[5]; + int count = 5; + EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(1, count); + // CNAME TTL overrides AAAA TTL. + EXPECT_EQ(50, info[0].ttl); + EXPECT_EQ(0x01, info[0].ip6addr._S6_un._S6_u8[0]); + EXPECT_EQ(0x02, info[0].ip6addr._S6_un._S6_u8[4]); + ASSERT_NE(nullptr, host); + std::stringstream ss; + ss << HostEnt(host); + EXPECT_EQ("{'c.example.com' aliases=[example.com] addrs=[0101:0101:0202:0202:0303:0303:0404:0404]}", ss.str()); + ares_free_hostent(host); + + // Repeat without providing a hostent + count = 5; + EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), + nullptr, info, &count)); + EXPECT_EQ(1, count); + EXPECT_EQ(50, info[0].ttl); + EXPECT_EQ(0x01, info[0].ip6addr._S6_un._S6_u8[0]); + EXPECT_EQ(0x02, info[0].ip6addr._S6_un._S6_u8[4]); +} + +TEST_F(LibraryTest, ParseAaaaReplyNoData) { + DNSPacket pkt; + pkt.set_qid(0x1234).set_response().set_aa() + .add_question(new DNSQuestion("example.com", ns_t_aaaa)); + std::vector data = pkt.data(); + struct hostent *host = nullptr; + struct ares_addr6ttl info[2]; + int count = 2; + EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(0, count); + EXPECT_EQ(nullptr, host); + + // Again but with a CNAME. + pkt.add_answer(new DNSCnameRR("example.com", 200, "c.example.com")); + EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(0, count); + EXPECT_EQ(nullptr, host); +} + +TEST_F(LibraryTest, ParseAaaaReplyErrors) { + DNSPacket pkt; + pkt.set_qid(0x1234).set_response().set_aa() + .add_question(new DNSQuestion("example.com", ns_t_aaaa)) + .add_answer(new DNSAaaaRR("example.com", 100, + {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); + std::vector data; + + struct hostent *host = nullptr; + struct ares_addr6ttl info[2]; + int count = 2; + + // No question. + pkt.questions_.clear(); + data = pkt.data(); + EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(nullptr, host); + pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); + + // Question != answer + pkt.questions_.clear(); + pkt.add_question(new DNSQuestion("Axample.com", ns_t_aaaa)); + data = pkt.data(); + EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(nullptr, host); + pkt.questions_.clear(); + pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); + + // Two questions. + pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); + data = pkt.data(); + EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(nullptr, host); + pkt.questions_.clear(); + pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); + + // Wrong sort of answer. + pkt.answers_.clear(); + pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); + data = pkt.data(); + EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(nullptr, host); + pkt.answers_.clear(); + pkt.add_answer(new DNSAaaaRR("example.com", 100, + {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); + + // No answer. + pkt.answers_.clear(); + data = pkt.data(); + EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)); + EXPECT_EQ(nullptr, host); + pkt.add_answer(new DNSAaaaRR("example.com", 100, + {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); + + // Truncated packets. + data = pkt.data(); + for (size_t len = 1; len < data.size(); len++) { + EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), len, + &host, info, &count)); + EXPECT_EQ(nullptr, host); + EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), len, + nullptr, info, &count)); + } +} + +TEST_F(LibraryTest, ParseAaaaReplyAllocFail) { + DNSPacket pkt; + pkt.set_qid(0x1234).set_response().set_aa() + .add_question(new DNSQuestion("example.com", ns_t_aaaa)) + .add_answer(new DNSCnameRR("example.com", 300, "c.example.com")) + .add_answer(new DNSAaaaRR("c.example.com", 100, + {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); + std::vector data = pkt.data(); + struct hostent *host = nullptr; + struct ares_addr6ttl info[2]; + int count = 2; + + for (int ii = 1; ii <= 8; ii++) { + ClearFails(); + SetAllocFail(ii); + EXPECT_EQ(ARES_ENOMEM, ares_parse_aaaa_reply(data.data(), data.size(), + &host, info, &count)) << ii; + EXPECT_EQ(nullptr, host); + } +} + +} // namespace test +} // namespace ares -- cgit v1.2.3