[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/c-ares/src/test/ares-test-parse-mx.cc b/ap/app/c-ares/src/test/ares-test-parse-mx.cc
new file mode 100644
index 0000000..37324a6
--- /dev/null
+++ b/ap/app/c-ares/src/test/ares-test-parse-mx.cc
@@ -0,0 +1,141 @@
+#include "ares-test.h"
+#include "dns-proto.h"
+
+#include <sstream>
+#include <vector>
+
+namespace ares {
+namespace test {
+
+TEST_F(LibraryTest, ParseMxReplyOK) {
+ DNSPacket pkt;
+ pkt.set_qid(0x1234).set_response().set_aa()
+ .add_question(new DNSQuestion("example.com", ns_t_mx))
+ .add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com"))
+ .add_answer(new DNSMxRR("example.com", 100, 200, "mx2.example.com"));
+ std::vector<byte> data = pkt.data();
+
+ struct ares_mx_reply* mx = nullptr;
+ EXPECT_EQ(ARES_SUCCESS, ares_parse_mx_reply(data.data(), data.size(), &mx));
+ ASSERT_NE(nullptr, mx);
+ EXPECT_EQ("mx1.example.com", std::string(mx->host));
+ EXPECT_EQ(100, mx->priority);
+
+ struct ares_mx_reply* mx2 = mx->next;
+ ASSERT_NE(nullptr, mx2);
+ EXPECT_EQ("mx2.example.com", std::string(mx2->host));
+ EXPECT_EQ(200, mx2->priority);
+ EXPECT_EQ(nullptr, mx2->next);
+
+ ares_free_data(mx);
+}
+
+TEST_F(LibraryTest, ParseMxReplyMalformed) {
+ std::vector<byte> data = {
+ 0x12, 0x34, // qid
+ 0x84, // response + query + AA + not-TC + not-RD
+ 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError
+ 0x00, 0x01, // num questions
+ 0x00, 0x01, // num answer RRs
+ 0x00, 0x00, // num authority RRs
+ 0x00, 0x00, // num additional RRs
+ // Question
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x0F, // type MX
+ 0x00, 0x01, // class IN
+ // Answer 1
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x0F, // RR type
+ 0x00, 0x01, // class IN
+ 0x01, 0x02, 0x03, 0x04, // TTL
+ 0x00, 0x01, // rdata length -- too short
+ 0x02,
+ };
+
+ struct ares_mx_reply* mx = nullptr;
+ EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx));
+ ASSERT_EQ(nullptr, mx);
+}
+
+
+TEST_F(LibraryTest, ParseMxReplyErrors) {
+ DNSPacket pkt;
+ pkt.set_qid(0x1234).set_response().set_aa()
+ .add_question(new DNSQuestion("example.com", ns_t_mx))
+ .add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com"));
+ std::vector<byte> data;
+ struct ares_mx_reply* mx = nullptr;
+
+ // No question.
+ pkt.questions_.clear();
+ data = pkt.data();
+ EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx));
+ EXPECT_EQ(nullptr, mx);
+ pkt.add_question(new DNSQuestion("example.com", ns_t_mx));
+
+#ifdef DISABLED
+ // Question != answer
+ pkt.questions_.clear();
+ pkt.add_question(new DNSQuestion("Axample.com", ns_t_mx));
+ data = pkt.data();
+ EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx));
+ pkt.questions_.clear();
+ pkt.add_question(new DNSQuestion("example.com", ns_t_mx));
+#endif
+
+ // Two questions.
+ pkt.add_question(new DNSQuestion("example.com", ns_t_mx));
+ data = pkt.data();
+ EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx));
+ EXPECT_EQ(nullptr, mx);
+ pkt.questions_.clear();
+ pkt.add_question(new DNSQuestion("example.com", ns_t_mx));
+
+ // Wrong sort of answer.
+ // TODO(drysdale): check if this should be ARES_ENODATA?
+ pkt.answers_.clear();
+ pkt.add_answer(new DNSSrvRR("example.abc.def.com", 180, 0, 10, 8160, "example.abc.def.com"));
+ data = pkt.data();
+ EXPECT_EQ(ARES_SUCCESS, ares_parse_mx_reply(data.data(), data.size(), &mx));
+ EXPECT_EQ(nullptr, mx);
+ pkt.answers_.clear();
+ pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com"));
+
+ // No answer.
+ pkt.answers_.clear();
+ data = pkt.data();
+ EXPECT_EQ(ARES_ENODATA, ares_parse_mx_reply(data.data(), data.size(), &mx));
+ EXPECT_EQ(nullptr, mx);
+ pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com"));
+
+ // Truncated packets.
+ data = pkt.data();
+ for (size_t len = 1; len < data.size(); len++) {
+ int rc = ares_parse_mx_reply(data.data(), len, &mx);
+ EXPECT_EQ(nullptr, mx);
+ EXPECT_TRUE(rc == ARES_EBADRESP || rc == ARES_EBADNAME);
+ }
+}
+
+TEST_F(LibraryTest, ParseMxReplyAllocFail) {
+ DNSPacket pkt;
+ pkt.set_qid(0x1234).set_response().set_aa()
+ .add_question(new DNSQuestion("example.com", ns_t_mx))
+ .add_answer(new DNSCnameRR("example.com", 300, "c.example.com"))
+ .add_answer(new DNSMxRR("c.example.com", 100, 100, "mx1.example.com"));
+ std::vector<byte> data = pkt.data();
+ struct ares_mx_reply* mx = nullptr;
+
+ for (int ii = 1; ii <= 5; ii++) {
+ ClearFails();
+ SetAllocFail(ii);
+ EXPECT_EQ(ARES_ENOMEM, ares_parse_mx_reply(data.data(), data.size(), &mx)) << ii;
+ }
+}
+
+} // namespace test
+} // namespace ares