Merge history of CTS
BUG: 167962976
Test: TH
Merged-In: I30d52c4df571c894b7797300e8f56ddd4b2cc2dd
Change-Id: Id343f5a31604abfe70140343bffab20503cd2705
diff --git a/tests/cts/net/native/dns/NativeDnsAsyncTest.cpp b/tests/cts/net/native/dns/NativeDnsAsyncTest.cpp
new file mode 100644
index 0000000..e501475
--- /dev/null
+++ b/tests/cts/net/native/dns/NativeDnsAsyncTest.cpp
@@ -0,0 +1,257 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <error.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+#include <poll.h> /* poll */
+#include <resolv.h>
+#include <string.h>
+#include <sys/socket.h>
+
+#include <android/multinetwork.h>
+#include <gtest/gtest.h>
+
+namespace {
+constexpr int MAXPACKET = 8 * 1024;
+constexpr int PTON_MAX = 16;
+constexpr int TIMEOUT_MS = 10000;
+
+int getAsyncResponse(int fd, int timeoutMs, int* rcode, uint8_t* buf, size_t bufLen) {
+ struct pollfd wait_fd[1];
+ wait_fd[0].fd = fd;
+ wait_fd[0].events = POLLIN;
+ short revents;
+ int ret;
+ ret = poll(wait_fd, 1, timeoutMs);
+ revents = wait_fd[0].revents;
+ if (revents & POLLIN) {
+ int n = android_res_nresult(fd, rcode, buf, bufLen);
+ // Verify that android_res_nresult() closed the fd
+ char dummy;
+ EXPECT_EQ(-1, read(fd, &dummy, sizeof dummy));
+ EXPECT_EQ(EBADF, errno);
+ return n;
+ }
+
+ return -1;
+}
+
+std::vector<std::string> extractIpAddressAnswers(uint8_t* buf, size_t bufLen, int ipType) {
+ ns_msg handle;
+ if (ns_initparse((const uint8_t*) buf, bufLen, &handle) < 0) {
+ return {};
+ }
+ const int ancount = ns_msg_count(handle, ns_s_an);
+ ns_rr rr;
+ std::vector<std::string> answers;
+ for (int i = 0; i < ancount; i++) {
+ if (ns_parserr(&handle, ns_s_an, i, &rr) < 0) {
+ continue;
+ }
+ const uint8_t* rdata = ns_rr_rdata(rr);
+ char buffer[INET6_ADDRSTRLEN];
+ if (inet_ntop(ipType, (const char*) rdata, buffer, sizeof(buffer))) {
+ answers.push_back(buffer);
+ }
+ }
+ return answers;
+}
+
+void expectAnswersValid(int fd, int ipType, int expectedRcode) {
+ int rcode = -1;
+ uint8_t buf[MAXPACKET] = {};
+ int res = getAsyncResponse(fd, TIMEOUT_MS, &rcode, buf, MAXPACKET);
+ EXPECT_GE(res, 0);
+ EXPECT_EQ(rcode, expectedRcode);
+
+ if (expectedRcode == ns_r_noerror) {
+ auto answers = extractIpAddressAnswers(buf, res, ipType);
+ EXPECT_GE(answers.size(), 0U);
+ for (auto &answer : answers) {
+ char pton[PTON_MAX];
+ EXPECT_EQ(1, inet_pton(ipType, answer.c_str(), pton));
+ }
+ }
+}
+
+void expectAnswersNotValid(int fd, int expectedErrno) {
+ int rcode = -1;
+ uint8_t buf[MAXPACKET] = {};
+ int res = getAsyncResponse(fd, TIMEOUT_MS, &rcode, buf, MAXPACKET);
+ EXPECT_EQ(expectedErrno, res);
+}
+
+} // namespace
+
+TEST (NativeDnsAsyncTest, Async_Query) {
+ // V4
+ int fd1 = android_res_nquery(
+ NETWORK_UNSPECIFIED, "www.google.com", ns_c_in, ns_t_a, 0);
+ EXPECT_GE(fd1, 0);
+ int fd2 = android_res_nquery(
+ NETWORK_UNSPECIFIED, "www.youtube.com", ns_c_in, ns_t_a, 0);
+ EXPECT_GE(fd2, 0);
+ expectAnswersValid(fd2, AF_INET, ns_r_noerror);
+ expectAnswersValid(fd1, AF_INET, ns_r_noerror);
+
+ // V6
+ fd1 = android_res_nquery(
+ NETWORK_UNSPECIFIED, "www.google.com", ns_c_in, ns_t_aaaa, 0);
+ EXPECT_GE(fd1, 0);
+ fd2 = android_res_nquery(
+ NETWORK_UNSPECIFIED, "www.youtube.com", ns_c_in, ns_t_aaaa, 0);
+ EXPECT_GE(fd2, 0);
+ expectAnswersValid(fd2, AF_INET6, ns_r_noerror);
+ expectAnswersValid(fd1, AF_INET6, ns_r_noerror);
+}
+
+TEST (NativeDnsAsyncTest, Async_Send) {
+ // V4
+ uint8_t buf1[MAXPACKET] = {};
+ int len1 = res_mkquery(ns_o_query, "www.googleapis.com",
+ ns_c_in, ns_t_a, nullptr, 0, nullptr, buf1, sizeof(buf1));
+ EXPECT_GT(len1, 0);
+
+ uint8_t buf2[MAXPACKET] = {};
+ int len2 = res_mkquery(ns_o_query, "play.googleapis.com",
+ ns_c_in, ns_t_a, nullptr, 0, nullptr, buf2, sizeof(buf2));
+ EXPECT_GT(len2, 0);
+
+ int fd1 = android_res_nsend(NETWORK_UNSPECIFIED, buf1, len1, 0);
+ EXPECT_GE(fd1, 0);
+ int fd2 = android_res_nsend(NETWORK_UNSPECIFIED, buf2, len2, 0);
+ EXPECT_GE(fd2, 0);
+
+ expectAnswersValid(fd2, AF_INET, ns_r_noerror);
+ expectAnswersValid(fd1, AF_INET, ns_r_noerror);
+
+ // V6
+ memset(buf1, 0, sizeof(buf1));
+ memset(buf2, 0, sizeof(buf2));
+ len1 = res_mkquery(ns_o_query, "www.googleapis.com",
+ ns_c_in, ns_t_aaaa, nullptr, 0, nullptr, buf1, sizeof(buf1));
+ EXPECT_GT(len1, 0);
+ len2 = res_mkquery(ns_o_query, "play.googleapis.com",
+ ns_c_in, ns_t_aaaa, nullptr, 0, nullptr, buf2, sizeof(buf2));
+ EXPECT_GT(len2, 0);
+
+ fd1 = android_res_nsend(NETWORK_UNSPECIFIED, buf1, len1, 0);
+ EXPECT_GE(fd1, 0);
+ fd2 = android_res_nsend(NETWORK_UNSPECIFIED, buf2, len2, 0);
+ EXPECT_GE(fd2, 0);
+
+ expectAnswersValid(fd2, AF_INET6, ns_r_noerror);
+ expectAnswersValid(fd1, AF_INET6, ns_r_noerror);
+}
+
+TEST (NativeDnsAsyncTest, Async_NXDOMAIN) {
+ uint8_t buf[MAXPACKET] = {};
+ int len = res_mkquery(ns_o_query, "test1-nx.metric.gstatic.com",
+ ns_c_in, ns_t_a, nullptr, 0, nullptr, buf, sizeof(buf));
+ EXPECT_GT(len, 0);
+ int fd1 = android_res_nsend(NETWORK_UNSPECIFIED, buf, len, ANDROID_RESOLV_NO_CACHE_LOOKUP);
+ EXPECT_GE(fd1, 0);
+
+ len = res_mkquery(ns_o_query, "test2-nx.metric.gstatic.com",
+ ns_c_in, ns_t_a, nullptr, 0, nullptr, buf, sizeof(buf));
+ EXPECT_GT(len, 0);
+ int fd2 = android_res_nsend(NETWORK_UNSPECIFIED, buf, len, ANDROID_RESOLV_NO_CACHE_LOOKUP);
+ EXPECT_GE(fd2, 0);
+
+ expectAnswersValid(fd2, AF_INET, ns_r_nxdomain);
+ expectAnswersValid(fd1, AF_INET, ns_r_nxdomain);
+
+ fd1 = android_res_nquery(
+ NETWORK_UNSPECIFIED, "test3-nx.metric.gstatic.com",
+ ns_c_in, ns_t_aaaa, ANDROID_RESOLV_NO_CACHE_LOOKUP);
+ EXPECT_GE(fd1, 0);
+ fd2 = android_res_nquery(
+ NETWORK_UNSPECIFIED, "test4-nx.metric.gstatic.com",
+ ns_c_in, ns_t_aaaa, ANDROID_RESOLV_NO_CACHE_LOOKUP);
+ EXPECT_GE(fd2, 0);
+ expectAnswersValid(fd2, AF_INET6, ns_r_nxdomain);
+ expectAnswersValid(fd1, AF_INET6, ns_r_nxdomain);
+}
+
+TEST (NativeDnsAsyncTest, Async_Cancel) {
+ int fd = android_res_nquery(
+ NETWORK_UNSPECIFIED, "www.google.com", ns_c_in, ns_t_a, 0);
+ errno = 0;
+ android_res_cancel(fd);
+ int err = errno;
+ EXPECT_EQ(err, 0);
+ // DO NOT call cancel or result with the same fd more than once,
+ // otherwise it will hit fdsan double-close fd.
+}
+
+TEST (NativeDnsAsyncTest, Async_Query_MALFORMED) {
+ // Empty string to create BLOB and query, we will get empty result and rcode = 0
+ // on DNSTLS.
+ int fd = android_res_nquery(
+ NETWORK_UNSPECIFIED, "", ns_c_in, ns_t_a, 0);
+ EXPECT_GE(fd, 0);
+ expectAnswersValid(fd, AF_INET, ns_r_noerror);
+
+ std::string exceedingLabelQuery = "www." + std::string(70, 'g') + ".com";
+ std::string exceedingDomainQuery = "www." + std::string(255, 'g') + ".com";
+
+ fd = android_res_nquery(NETWORK_UNSPECIFIED,
+ exceedingLabelQuery.c_str(), ns_c_in, ns_t_a, 0);
+ EXPECT_EQ(-EMSGSIZE, fd);
+ fd = android_res_nquery(NETWORK_UNSPECIFIED,
+ exceedingDomainQuery.c_str(), ns_c_in, ns_t_a, 0);
+ EXPECT_EQ(-EMSGSIZE, fd);
+}
+
+TEST (NativeDnsAsyncTest, Async_Send_MALFORMED) {
+ uint8_t buf[10] = {};
+ // empty BLOB
+ int fd = android_res_nsend(NETWORK_UNSPECIFIED, buf, 10, 0);
+ EXPECT_GE(fd, 0);
+ expectAnswersNotValid(fd, -EINVAL);
+
+ std::vector<uint8_t> largeBuf(2 * MAXPACKET, 0);
+ // A buffer larger than 8KB
+ fd = android_res_nsend(
+ NETWORK_UNSPECIFIED, largeBuf.data(), largeBuf.size(), 0);
+ EXPECT_EQ(-EMSGSIZE, fd);
+
+ // 5000 bytes filled with 0. This returns EMSGSIZE because FrameworkListener limits the size of
+ // commands to 4096 bytes.
+ fd = android_res_nsend(NETWORK_UNSPECIFIED, largeBuf.data(), 5000, 0);
+ EXPECT_EQ(-EMSGSIZE, fd);
+
+ // 500 bytes filled with 0
+ fd = android_res_nsend(NETWORK_UNSPECIFIED, largeBuf.data(), 500, 0);
+ EXPECT_GE(fd, 0);
+ expectAnswersNotValid(fd, -EINVAL);
+
+ // 5000 bytes filled with 0xFF
+ std::vector<uint8_t> ffBuf(5000, 0xFF);
+ fd = android_res_nsend(
+ NETWORK_UNSPECIFIED, ffBuf.data(), ffBuf.size(), 0);
+ EXPECT_EQ(-EMSGSIZE, fd);
+
+ // 500 bytes filled with 0xFF
+ fd = android_res_nsend(NETWORK_UNSPECIFIED, ffBuf.data(), 500, 0);
+ EXPECT_GE(fd, 0);
+ expectAnswersNotValid(fd, -EINVAL);
+}