| /* |
| * Copyright (C) 2019 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 <poll.h> /* poll */ |
| #include <sys/socket.h> |
| |
| #include <thread> |
| |
| #include <android-base/parseint.h> |
| #include <android-base/unique_fd.h> |
| #include <gtest/gtest.h> |
| |
| #include "NetdClient.h" |
| #include "netdclient_priv.h" |
| |
| namespace { |
| |
| // Keep in sync with FrameworkListener.cpp (500, "Command not recognized") |
| constexpr char NOT_SUPPORT_MSG[] = "500 Command not recognized"; |
| |
| void serverLoop(int dnsProxyFd) { |
| while (true) { |
| pollfd fds[1] = {{.fd = dnsProxyFd, .events = POLLIN}}; |
| enum { SERVERFD = 0 }; |
| |
| const int s = TEMP_FAILURE_RETRY(poll(fds, std::size(fds), -1)); |
| if (s <= 0) break; |
| |
| if (fds[SERVERFD].revents & POLLIN) { |
| char buf[4096]; |
| TEMP_FAILURE_RETRY(read(fds[SERVERFD].fd, &buf, sizeof(buf))); |
| // TODO: verify command |
| TEMP_FAILURE_RETRY(write(fds[SERVERFD].fd, NOT_SUPPORT_MSG, sizeof(NOT_SUPPORT_MSG))); |
| } |
| } |
| } |
| |
| } // namespace |
| |
| TEST(NetdClientTest, getNetworkForDnsInternal) { |
| // Test invalid fd |
| unsigned dnsNetId = 0; |
| const int invalidFd = -1; |
| EXPECT_EQ(-EBADF, getNetworkForDnsInternal(invalidFd, &dnsNetId)); |
| |
| // Test what the client does if the resolver does not support the "getdnsnetid" command. |
| android::base::unique_fd clientFd, serverFd; |
| ASSERT_TRUE(android::base::Socketpair(AF_UNIX, &clientFd, &serverFd)); |
| |
| std::thread serverThread = std::thread(serverLoop, serverFd.get()); |
| |
| EXPECT_EQ(-EOPNOTSUPP, getNetworkForDnsInternal(clientFd.get(), &dnsNetId)); |
| |
| clientFd.reset(); // Causes serverLoop() to exit |
| serverThread.join(); |
| } |
| |
| TEST(NetdClientTest, getNetworkForDns) { |
| // Test null input |
| unsigned* testNull = nullptr; |
| EXPECT_EQ(-EFAULT, getNetworkForDns(testNull)); |
| } |