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| 1 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // These tests are POSIX only. | |
| 6 | |
| 7 #include "ipc/ipc_channel_posix.h" | |
| 8 | |
| 9 #include <fcntl.h> | |
| 10 #include <sys/socket.h> | |
| 11 #include <sys/un.h> | |
| 12 #include <unistd.h> | |
| 13 | |
| 14 #include "base/basictypes.h" | |
| 15 #include "base/eintr_wrapper.h" | |
| 16 #include "base/message_loop.h" | |
| 17 #include "base/scoped_ptr.h" | |
| 18 #include "base/test/multiprocess_test.h" | |
| 19 #include "base/test/test_timeouts.h" | |
| 20 #include "testing/multiprocess_func_list.h" | |
| 21 | |
| 22 namespace { | |
| 23 | |
| 24 enum { | |
| 25 QUIT_MESSAGE = 47 | |
| 26 }; | |
| 27 | |
| 28 class IPCChannelPosixTestListener : public IPC::Channel::Listener { | |
| 29 public: | |
| 30 enum STATUS { | |
| 31 DISCONNECTED, | |
| 32 MESSAGE_RECEIVED, | |
| 33 CHANNEL_ERROR, | |
| 34 CONNECTED, | |
| 35 DENIED, | |
| 36 LISTEN_ERROR | |
| 37 }; | |
| 38 | |
| 39 IPCChannelPosixTestListener(bool quit_only_on_message) | |
| 40 : status_(DISCONNECTED), quit_only_on_message_(quit_only_on_message) {} | |
| 41 | |
| 42 virtual ~IPCChannelPosixTestListener() {} | |
| 43 | |
| 44 virtual void OnMessageReceived(const IPC::Message& message) { | |
| 45 EXPECT_EQ(message.type(), QUIT_MESSAGE); | |
| 46 status_ = MESSAGE_RECEIVED; | |
| 47 QuitRunLoop(); | |
| 48 } | |
| 49 | |
| 50 virtual void OnChannelConnected(int32 peer_pid) { | |
| 51 status_ = CONNECTED; | |
| 52 if (!quit_only_on_message_) { | |
| 53 QuitRunLoop(); | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 virtual void OnChannelError() { | |
| 58 status_ = CHANNEL_ERROR; | |
| 59 if (!quit_only_on_message_) { | |
| 60 QuitRunLoop(); | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 virtual void OnChannelDenied() { | |
| 65 status_ = DENIED; | |
| 66 if (!quit_only_on_message_) { | |
| 67 QuitRunLoop(); | |
| 68 } | |
| 69 } | |
| 70 | |
| 71 virtual void OnChannelListenError() { | |
| 72 status_ = LISTEN_ERROR; | |
| 73 if (!quit_only_on_message_) { | |
| 74 QuitRunLoop(); | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 STATUS status() { return status_; } | |
| 79 | |
| 80 void QuitRunLoop() { | |
| 81 MessageLoopForIO::current()->QuitNow(); | |
| 82 } | |
| 83 | |
| 84 private: | |
| 85 // The current status of the listener. | |
| 86 STATUS status_; | |
| 87 // If |quit_only_on_message_| then the listener will only break out of | |
| 88 // the run loop when the QUIT_MESSAGE is received. | |
| 89 bool quit_only_on_message_; | |
| 90 }; | |
| 91 | |
| 92 } // namespace | |
| 93 | |
| 94 class IPCChannelPosixTest : public base::MultiProcessTest { | |
| 95 public: | |
| 96 static const char kConnectionSocketTestName[]; | |
| 97 static void SetUpSocket(IPC::ChannelHandle *handle, | |
| 98 IPC::Channel::Mode mode); | |
| 99 static void SpinRunLoop(int milliseconds); | |
| 100 | |
| 101 protected: | |
| 102 virtual void SetUp(); | |
| 103 virtual void TearDown(); | |
| 104 | |
| 105 private: | |
| 106 scoped_ptr<MessageLoopForIO> message_loop_; | |
| 107 }; | |
| 108 | |
| 109 const char IPCChannelPosixTest::kConnectionSocketTestName[] = | |
| 110 "/var/tmp/chrome_IPCChannelPosixTest__AdvancedConnected"; | |
| 111 | |
| 112 void IPCChannelPosixTest::SetUp() { | |
| 113 MultiProcessTest::SetUp(); | |
| 114 // Construct a fresh IO Message loop for the duration of each test. | |
| 115 message_loop_.reset(new MessageLoopForIO()); | |
| 116 } | |
| 117 | |
| 118 void IPCChannelPosixTest::TearDown() { | |
| 119 message_loop_.reset(NULL); | |
| 120 MultiProcessTest::TearDown(); | |
| 121 } | |
| 122 | |
| 123 // Create up a socket and bind and listen to it, or connect it | |
| 124 // depending on the |mode|. | |
| 125 void IPCChannelPosixTest::SetUpSocket(IPC::ChannelHandle *handle, | |
| 126 IPC::Channel::Mode mode) { | |
| 127 const std::string& name = handle->name; | |
| 128 int socket_fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
| 129 ASSERT_GE(socket_fd, 0) << name; | |
| 130 ASSERT_GE(fcntl(socket_fd, F_SETFL, O_NONBLOCK), 0); | |
| 131 struct sockaddr_un server_address = { 0 }; | |
| 132 server_address.sun_family = AF_UNIX; | |
| 133 memcpy(server_address.sun_path, name.c_str(), name.length() + 1); | |
| 134 if (mode == IPC::Channel::MODE_NAMED_SERVER) { | |
| 135 // Only one server at a time. Cleanup garbage if it exists. | |
| 136 unlink(name.c_str()); | |
| 137 ASSERT_GE(bind(socket_fd, | |
| 138 reinterpret_cast<struct sockaddr *>(&server_address), | |
| 139 SUN_LEN(&server_address)), 0) << name; | |
| 140 ASSERT_GE(listen(socket_fd, SOMAXCONN), 0) << name; | |
| 141 } else if (mode == IPC::Channel::MODE_NAMED_CLIENT) { | |
| 142 ASSERT_GE(connect(socket_fd, | |
| 143 reinterpret_cast<struct sockaddr *>(&server_address), | |
| 144 SUN_LEN(&server_address)), 0) << name; | |
| 145 } else { | |
| 146 FAIL() << "Unknown mode " << mode; | |
| 147 } | |
| 148 handle->socket.fd = socket_fd; | |
| 149 } | |
| 150 | |
| 151 void IPCChannelPosixTest::SpinRunLoop(int milliseconds) { | |
| 152 MessageLoopForIO *loop = MessageLoopForIO::current(); | |
| 153 // Post a quit task so that this loop eventually ends and we don't hang | |
| 154 // in the case of a bad test. Usually, the run loop will quit sooner than | |
| 155 // that because all tests use a IPCChannelPosixTestListener which quits the | |
| 156 // current run loop on any channel activity. | |
| 157 loop->PostDelayedTask(FROM_HERE, new MessageLoop::QuitTask(), milliseconds); | |
| 158 loop->Run(); | |
| 159 } | |
| 160 | |
| 161 TEST_F(IPCChannelPosixTest, BasicListen) { | |
| 162 // Test creating a socket that is listening. | |
| 163 IPC::ChannelHandle handle("/var/tmp/IPCChannelPosixTest::BasicListen"); | |
| 164 SetUpSocket(&handle, IPC::Channel::MODE_NAMED_SERVER); | |
| 165 unlink(handle.name.c_str()); | |
| 166 IPC::Channel channel(handle, IPC::Channel::MODE_NAMED_SERVER, NULL); | |
| 167 ASSERT_TRUE(channel.Connect()); | |
| 168 ASSERT_TRUE(channel.AcceptsConnections()); | |
| 169 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 170 channel.ResetToAcceptingConnectionState(); | |
| 171 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 172 } | |
| 173 | |
| 174 TEST_F(IPCChannelPosixTest, BasicConnected) { | |
| 175 // Test creating a socket that is connected. | |
| 176 int pipe_fds[2]; | |
| 177 ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, pipe_fds)); | |
| 178 std::string socket_name("/var/tmp/IPCChannelPosixTest::BasicConnected"); | |
| 179 base::FileDescriptor fd(pipe_fds[0], false); | |
| 180 IPC::ChannelHandle handle(socket_name, fd); | |
| 181 IPC::Channel channel(handle, IPC::Channel::MODE_SERVER, NULL); | |
| 182 ASSERT_TRUE(channel.Connect()); | |
| 183 ASSERT_FALSE(channel.AcceptsConnections()); | |
| 184 channel.Close(); | |
| 185 ASSERT_TRUE(HANDLE_EINTR(close(pipe_fds[1])) == 0); | |
| 186 | |
| 187 // Make sure that we can use the socket that is created for us by | |
| 188 // a standard channel. | |
| 189 IPC::Channel channel2(socket_name, IPC::Channel::MODE_SERVER, NULL); | |
| 190 ASSERT_TRUE(channel2.Connect()); | |
| 191 ASSERT_FALSE(channel2.AcceptsConnections()); | |
| 192 } | |
| 193 | |
| 194 TEST_F(IPCChannelPosixTest, AdvancedConnected) { | |
| 195 // Test creating a connection to an external process. | |
| 196 IPCChannelPosixTestListener listener(false); | |
| 197 IPC::ChannelHandle chan_handle(kConnectionSocketTestName); | |
| 198 SetUpSocket(&chan_handle, IPC::Channel::MODE_NAMED_SERVER); | |
| 199 IPC::Channel channel(chan_handle, IPC::Channel::MODE_NAMED_SERVER, &listener); | |
| 200 ASSERT_TRUE(channel.Connect()); | |
| 201 ASSERT_TRUE(channel.AcceptsConnections()); | |
| 202 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 203 | |
| 204 base::ProcessHandle handle = SpawnChild("IPCChannelPosixTestConnectionProc", | |
| 205 false); | |
| 206 ASSERT_TRUE(handle); | |
| 207 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 208 ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status()); | |
| 209 ASSERT_TRUE(channel.HasAcceptedConnection()); | |
| 210 IPC::Message* message = new IPC::Message(0, // routing_id | |
| 211 QUIT_MESSAGE, // message type | |
| 212 IPC::Message::PRIORITY_NORMAL); | |
| 213 channel.Send(message); | |
| 214 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 215 int exit_code = 0; | |
| 216 EXPECT_TRUE(base::WaitForExitCode(handle, &exit_code)); | |
| 217 EXPECT_EQ(0, exit_code); | |
| 218 ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status()); | |
| 219 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 220 } | |
| 221 | |
| 222 TEST_F(IPCChannelPosixTest, ResetState) { | |
| 223 // Test creating a connection to an external process. Close the connection, | |
| 224 // but continue to listen and make sure another external process can connect | |
| 225 // to us. | |
| 226 IPCChannelPosixTestListener listener(false); | |
| 227 IPC::ChannelHandle chan_handle(kConnectionSocketTestName); | |
| 228 SetUpSocket(&chan_handle, IPC::Channel::MODE_NAMED_SERVER); | |
| 229 IPC::Channel channel(chan_handle, IPC::Channel::MODE_NAMED_SERVER, &listener); | |
| 230 ASSERT_TRUE(channel.Connect()); | |
| 231 ASSERT_TRUE(channel.AcceptsConnections()); | |
| 232 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 233 | |
| 234 base::ProcessHandle handle = SpawnChild("IPCChannelPosixTestConnectionProc", | |
| 235 false); | |
| 236 ASSERT_TRUE(handle); | |
| 237 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 238 ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status()); | |
| 239 ASSERT_TRUE(channel.HasAcceptedConnection()); | |
| 240 channel.ResetToAcceptingConnectionState(); | |
| 241 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 242 | |
| 243 base::ProcessHandle handle2 = SpawnChild("IPCChannelPosixTestConnectionProc", | |
| 244 false); | |
| 245 ASSERT_TRUE(handle2); | |
| 246 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 247 ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status()); | |
| 248 ASSERT_TRUE(channel.HasAcceptedConnection()); | |
| 249 IPC::Message* message = new IPC::Message(0, // routing_id | |
| 250 QUIT_MESSAGE, // message type | |
| 251 IPC::Message::PRIORITY_NORMAL); | |
| 252 channel.Send(message); | |
| 253 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 254 EXPECT_TRUE(base::KillProcess(handle, 0, false)); | |
| 255 int exit_code = 0; | |
| 256 EXPECT_TRUE(base::WaitForExitCode(handle2, &exit_code)); | |
| 257 EXPECT_EQ(0, exit_code); | |
| 258 ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status()); | |
| 259 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 260 } | |
| 261 | |
| 262 TEST_F(IPCChannelPosixTest, MultiConnection) { | |
| 263 // Test setting up a connection to an external process, and then have | |
| 264 // another external process attempt to connect to us. | |
| 265 IPCChannelPosixTestListener listener(false); | |
| 266 IPC::ChannelHandle chan_handle(kConnectionSocketTestName); | |
| 267 SetUpSocket(&chan_handle, IPC::Channel::MODE_NAMED_SERVER); | |
| 268 IPC::Channel channel(chan_handle, IPC::Channel::MODE_NAMED_SERVER, &listener); | |
| 269 ASSERT_TRUE(channel.Connect()); | |
| 270 ASSERT_TRUE(channel.AcceptsConnections()); | |
| 271 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 272 | |
| 273 base::ProcessHandle handle = SpawnChild("IPCChannelPosixTestConnectionProc", | |
| 274 false); | |
| 275 ASSERT_TRUE(handle); | |
| 276 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 277 ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status()); | |
| 278 ASSERT_TRUE(channel.HasAcceptedConnection()); | |
| 279 base::ProcessHandle handle2 = SpawnChild("IPCChannelPosixFailConnectionProc", | |
| 280 false); | |
| 281 ASSERT_TRUE(handle2); | |
| 282 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 283 int exit_code = 0; | |
| 284 EXPECT_TRUE(base::WaitForExitCode(handle2, &exit_code)); | |
| 285 EXPECT_EQ(exit_code, 0); | |
| 286 ASSERT_EQ(IPCChannelPosixTestListener::DENIED, listener.status()); | |
| 287 ASSERT_TRUE(channel.HasAcceptedConnection()); | |
| 288 IPC::Message* message = new IPC::Message(0, // routing_id | |
| 289 QUIT_MESSAGE, // message type | |
| 290 IPC::Message::PRIORITY_NORMAL); | |
| 291 channel.Send(message); | |
| 292 SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 293 EXPECT_TRUE(base::WaitForExitCode(handle, &exit_code)); | |
| 294 EXPECT_EQ(exit_code, 0); | |
| 295 ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status()); | |
| 296 ASSERT_FALSE(channel.HasAcceptedConnection()); | |
| 297 } | |
| 298 | |
| 299 // A long running process that connects to us | |
| 300 MULTIPROCESS_TEST_MAIN(IPCChannelPosixTestConnectionProc) { | |
| 301 MessageLoopForIO message_loop; | |
| 302 IPCChannelPosixTestListener listener(true); | |
| 303 IPC::ChannelHandle handle(IPCChannelPosixTest::kConnectionSocketTestName); | |
| 304 IPCChannelPosixTest::SetUpSocket(&handle, IPC::Channel::MODE_NAMED_CLIENT); | |
| 305 IPC::Channel channel(handle, IPC::Channel::MODE_NAMED_CLIENT, &listener); | |
| 306 EXPECT_TRUE(channel.Connect()); | |
| 307 IPCChannelPosixTest::SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 308 EXPECT_EQ(IPCChannelPosixTestListener::MESSAGE_RECEIVED, listener.status()); | |
| 309 return 0; | |
| 310 } | |
| 311 | |
| 312 // Simple external process that shouldn't be able to connect to us. | |
| 313 MULTIPROCESS_TEST_MAIN(IPCChannelPosixFailConnectionProc) { | |
| 314 MessageLoopForIO message_loop; | |
| 315 IPCChannelPosixTestListener listener(false); | |
| 316 IPC::ChannelHandle handle(IPCChannelPosixTest::kConnectionSocketTestName); | |
| 317 IPCChannelPosixTest::SetUpSocket(&handle, IPC::Channel::MODE_NAMED_CLIENT); | |
| 318 IPC::Channel channel(handle, IPC::Channel::MODE_NAMED_CLIENT, &listener); | |
| 319 | |
| 320 // In this case connect may succeed or fail depending on if the packet | |
| 321 // actually gets sent at sendmsg. Since we never delay on send, we may not | |
| 322 // see the error. However even if connect succeeds, eventually we will get an | |
| 323 // error back since the channel will be closed when we attempt to read from | |
| 324 // it. | |
| 325 bool connected = channel.Connect(); | |
| 326 if (connected) { | |
| 327 IPCChannelPosixTest::SpinRunLoop(TestTimeouts::action_timeout_ms()); | |
| 328 EXPECT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status()); | |
| 329 } else { | |
| 330 EXPECT_EQ(IPCChannelPosixTestListener::DISCONNECTED, listener.status()); | |
| 331 } | |
| 332 return 0; | |
| 333 } | |
| 334 | |
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Chromium Code Reviews
Issue 5943002:
Revert 69264 - Add support for sockets that can listen and accept a connectio... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/