| #include "ares-test.h" |
| #include "dns-proto.h" |
| |
| #include <sstream> |
| #include <vector> |
| |
| 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<byte> 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<byte> 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<byte> 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<byte> 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<byte> 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 |