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1 // Copyright (c) 2012 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/file_util.h"
16 #include "base/files/file_path.h"
17 #include "base/memory/scoped_ptr.h"
18 #include "base/message_loop/message_loop.h"
19 #include "base/path_service.h"
20 #include "base/posix/eintr_wrapper.h"
21 #include "base/process/kill.h"
22 #include "base/test/multiprocess_test.h"
23 #include "base/test/test_timeouts.h"
24 #include "ipc/ipc_listener.h"
25 #include "ipc/unix_domain_socket_util.h"
26 #include "testing/multiprocess_func_list.h"
27 
28 namespace {
29 
30 static const uint32 kQuitMessage = 47;
31 
32 class IPCChannelPosixTestListener : public IPC::Listener {
33  public:
34   enum STATUS {
35     DISCONNECTED,
36     MESSAGE_RECEIVED,
37     CHANNEL_ERROR,
38     CONNECTED,
39     DENIED,
40     LISTEN_ERROR
41   };
42 
IPCChannelPosixTestListener(bool quit_only_on_message)43   IPCChannelPosixTestListener(bool quit_only_on_message)
44       : status_(DISCONNECTED),
45         quit_only_on_message_(quit_only_on_message) {
46   }
47 
~IPCChannelPosixTestListener()48   virtual ~IPCChannelPosixTestListener() {}
49 
OnMessageReceived(const IPC::Message & message)50   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE {
51     EXPECT_EQ(message.type(), kQuitMessage);
52     status_ = MESSAGE_RECEIVED;
53     QuitRunLoop();
54     return true;
55   }
56 
OnChannelConnected(int32 peer_pid)57   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE {
58     status_ = CONNECTED;
59     if (!quit_only_on_message_) {
60       QuitRunLoop();
61     }
62   }
63 
OnChannelError()64   virtual void OnChannelError() OVERRIDE {
65     status_ = CHANNEL_ERROR;
66     QuitRunLoop();
67   }
68 
OnChannelDenied()69   virtual void OnChannelDenied() OVERRIDE {
70     status_ = DENIED;
71     if (!quit_only_on_message_) {
72       QuitRunLoop();
73     }
74   }
75 
OnChannelListenError()76   virtual void OnChannelListenError() OVERRIDE {
77     status_ = LISTEN_ERROR;
78     if (!quit_only_on_message_) {
79       QuitRunLoop();
80     }
81   }
82 
status()83   STATUS status() { return status_; }
84 
QuitRunLoop()85   void QuitRunLoop() {
86     base::MessageLoopForIO* loop = base::MessageLoopForIO::current();
87     if (loop->is_running()) {
88       loop->QuitNow();
89     } else {
90       // Die as soon as Run is called.
91       loop->PostTask(FROM_HERE, loop->QuitClosure());
92     }
93   }
94 
95  private:
96   // The current status of the listener.
97   STATUS status_;
98   // If |quit_only_on_message_| then the listener will only break out of
99   // the run loop when kQuitMessage is received.
100   bool quit_only_on_message_;
101 };
102 
103 class IPCChannelPosixTest : public base::MultiProcessTest {
104  public:
105   static void SetUpSocket(IPC::ChannelHandle *handle,
106                           IPC::Channel::Mode mode);
107   static void SpinRunLoop(base::TimeDelta delay);
108   static const std::string GetConnectionSocketName();
109   static const std::string GetChannelDirName();
110 
111  protected:
112   virtual void SetUp();
113   virtual void TearDown();
114 
115  private:
116   scoped_ptr<base::MessageLoopForIO> message_loop_;
117 };
118 
GetChannelDirName()119 const std::string IPCChannelPosixTest::GetChannelDirName() {
120 #if defined(OS_ANDROID)
121   base::FilePath tmp_dir;
122   PathService::Get(base::DIR_CACHE, &tmp_dir);
123   return tmp_dir.value();
124 #else
125   return "/var/tmp";
126 #endif
127 }
128 
GetConnectionSocketName()129 const std::string IPCChannelPosixTest::GetConnectionSocketName() {
130   return GetChannelDirName() + "/chrome_IPCChannelPosixTest__ConnectionSocket";
131 }
132 
SetUp()133 void IPCChannelPosixTest::SetUp() {
134   MultiProcessTest::SetUp();
135   // Construct a fresh IO Message loop for the duration of each test.
136   message_loop_.reset(new base::MessageLoopForIO());
137 }
138 
TearDown()139 void IPCChannelPosixTest::TearDown() {
140   message_loop_.reset(NULL);
141   MultiProcessTest::TearDown();
142 }
143 
144 // Create up a socket and bind and listen to it, or connect it
145 // depending on the |mode|.
SetUpSocket(IPC::ChannelHandle * handle,IPC::Channel::Mode mode)146 void IPCChannelPosixTest::SetUpSocket(IPC::ChannelHandle *handle,
147                                       IPC::Channel::Mode mode) {
148   const std::string& name = handle->name;
149 
150   int socket_fd = socket(PF_UNIX, SOCK_STREAM, 0);
151   ASSERT_GE(socket_fd, 0) << name;
152   ASSERT_GE(fcntl(socket_fd, F_SETFL, O_NONBLOCK), 0);
153   struct sockaddr_un server_address = { 0 };
154   memset(&server_address, 0, sizeof(server_address));
155   server_address.sun_family = AF_UNIX;
156   int path_len = snprintf(server_address.sun_path, IPC::kMaxSocketNameLength,
157                           "%s", name.c_str());
158   DCHECK_EQ(static_cast<int>(name.length()), path_len);
159   size_t server_address_len = offsetof(struct sockaddr_un,
160                                        sun_path) + path_len + 1;
161 
162   if (mode == IPC::Channel::MODE_NAMED_SERVER) {
163     // Only one server at a time. Cleanup garbage if it exists.
164     unlink(name.c_str());
165     // Make sure the path we need exists.
166     base::FilePath path(name);
167     base::FilePath dir_path = path.DirName();
168     ASSERT_TRUE(base::CreateDirectory(dir_path));
169     ASSERT_GE(bind(socket_fd,
170                    reinterpret_cast<struct sockaddr *>(&server_address),
171                    server_address_len), 0) << server_address.sun_path
172                                            << ": " << strerror(errno)
173                                            << "(" << errno << ")";
174     ASSERT_GE(listen(socket_fd, SOMAXCONN), 0) << server_address.sun_path
175                                                << ": " << strerror(errno)
176                                                << "(" << errno << ")";
177   } else if (mode == IPC::Channel::MODE_NAMED_CLIENT) {
178     ASSERT_GE(connect(socket_fd,
179                       reinterpret_cast<struct sockaddr *>(&server_address),
180                       server_address_len), 0) << server_address.sun_path
181                                               << ": " << strerror(errno)
182                                               << "(" << errno << ")";
183   } else {
184     FAIL() << "Unknown mode " << mode;
185   }
186   handle->socket.fd = socket_fd;
187 }
188 
SpinRunLoop(base::TimeDelta delay)189 void IPCChannelPosixTest::SpinRunLoop(base::TimeDelta delay) {
190   base::MessageLoopForIO* loop = base::MessageLoopForIO::current();
191   // Post a quit task so that this loop eventually ends and we don't hang
192   // in the case of a bad test. Usually, the run loop will quit sooner than
193   // that because all tests use a IPCChannelPosixTestListener which quits the
194   // current run loop on any channel activity.
195   loop->PostDelayedTask(FROM_HERE, loop->QuitClosure(), delay);
196   loop->Run();
197 }
198 
TEST_F(IPCChannelPosixTest,BasicListen)199 TEST_F(IPCChannelPosixTest, BasicListen) {
200   const std::string kChannelName =
201       GetChannelDirName() + "/IPCChannelPosixTest_BasicListen";
202 
203   // Test creating a socket that is listening.
204   IPC::ChannelHandle handle(kChannelName);
205   SetUpSocket(&handle, IPC::Channel::MODE_NAMED_SERVER);
206   unlink(handle.name.c_str());
207   scoped_ptr<IPC::ChannelPosix> channel(
208       new IPC::ChannelPosix(handle, IPC::Channel::MODE_NAMED_SERVER, NULL));
209   ASSERT_TRUE(channel->Connect());
210   ASSERT_TRUE(channel->AcceptsConnections());
211   ASSERT_FALSE(channel->HasAcceptedConnection());
212   channel->ResetToAcceptingConnectionState();
213   ASSERT_FALSE(channel->HasAcceptedConnection());
214 }
215 
TEST_F(IPCChannelPosixTest,BasicConnected)216 TEST_F(IPCChannelPosixTest, BasicConnected) {
217   // Test creating a socket that is connected.
218   int pipe_fds[2];
219   ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, pipe_fds));
220   std::string socket_name("/var/tmp/IPCChannelPosixTest_BasicConnected");
221   ASSERT_GE(fcntl(pipe_fds[0], F_SETFL, O_NONBLOCK), 0);
222 
223   base::FileDescriptor fd(pipe_fds[0], false);
224   IPC::ChannelHandle handle(socket_name, fd);
225   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
226       handle, IPC::Channel::MODE_SERVER, NULL));
227   ASSERT_TRUE(channel->Connect());
228   ASSERT_FALSE(channel->AcceptsConnections());
229   channel->Close();
230   ASSERT_TRUE(IGNORE_EINTR(close(pipe_fds[1])) == 0);
231 
232   // Make sure that we can use the socket that is created for us by
233   // a standard channel.
234   scoped_ptr<IPC::ChannelPosix> channel2(new IPC::ChannelPosix(
235       socket_name, IPC::Channel::MODE_SERVER, NULL));
236   ASSERT_TRUE(channel2->Connect());
237   ASSERT_FALSE(channel2->AcceptsConnections());
238 }
239 
240 // If a connection closes right before a Send() call, we may end up closing
241 // the connection without notifying the listener, which can cause hangs in
242 // sync_message_filter and others. Make sure the listener is notified.
TEST_F(IPCChannelPosixTest,SendHangTest)243 TEST_F(IPCChannelPosixTest, SendHangTest) {
244   IPCChannelPosixTestListener out_listener(true);
245   IPCChannelPosixTestListener in_listener(true);
246   IPC::ChannelHandle in_handle("IN");
247   scoped_ptr<IPC::ChannelPosix> in_chan(new IPC::ChannelPosix(
248       in_handle, IPC::Channel::MODE_SERVER, &in_listener));
249   base::FileDescriptor out_fd(
250       in_chan->TakeClientFileDescriptor(), false);
251   IPC::ChannelHandle out_handle("OUT", out_fd);
252   scoped_ptr<IPC::ChannelPosix> out_chan(new IPC::ChannelPosix(
253       out_handle, IPC::Channel::MODE_CLIENT, &out_listener));
254   ASSERT_TRUE(in_chan->Connect());
255   ASSERT_TRUE(out_chan->Connect());
256   in_chan->Close();  // simulate remote process dying at an unfortunate time.
257   // Send will fail, because it cannot write the message.
258   ASSERT_FALSE(out_chan->Send(new IPC::Message(
259       0,  // routing_id
260       kQuitMessage,  // message type
261       IPC::Message::PRIORITY_NORMAL)));
262   SpinRunLoop(TestTimeouts::action_max_timeout());
263   ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, out_listener.status());
264 }
265 
266 // If a connection closes right before a Connect() call, we may end up closing
267 // the connection without notifying the listener, which can cause hangs in
268 // sync_message_filter and others. Make sure the listener is notified.
TEST_F(IPCChannelPosixTest,AcceptHangTest)269 TEST_F(IPCChannelPosixTest, AcceptHangTest) {
270   IPCChannelPosixTestListener out_listener(true);
271   IPCChannelPosixTestListener in_listener(true);
272   IPC::ChannelHandle in_handle("IN");
273   scoped_ptr<IPC::ChannelPosix> in_chan(new IPC::ChannelPosix(
274       in_handle, IPC::Channel::MODE_SERVER, &in_listener));
275   base::FileDescriptor out_fd(
276       in_chan->TakeClientFileDescriptor(), false);
277   IPC::ChannelHandle out_handle("OUT", out_fd);
278   scoped_ptr<IPC::ChannelPosix> out_chan(new IPC::ChannelPosix(
279       out_handle, IPC::Channel::MODE_CLIENT, &out_listener));
280   ASSERT_TRUE(in_chan->Connect());
281   in_chan->Close();  // simulate remote process dying at an unfortunate time.
282   ASSERT_FALSE(out_chan->Connect());
283   SpinRunLoop(TestTimeouts::action_max_timeout());
284   ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, out_listener.status());
285 }
286 
TEST_F(IPCChannelPosixTest,AdvancedConnected)287 TEST_F(IPCChannelPosixTest, AdvancedConnected) {
288   // Test creating a connection to an external process.
289   IPCChannelPosixTestListener listener(false);
290   IPC::ChannelHandle chan_handle(GetConnectionSocketName());
291   SetUpSocket(&chan_handle, IPC::Channel::MODE_NAMED_SERVER);
292   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
293       chan_handle, IPC::Channel::MODE_NAMED_SERVER, &listener));
294   ASSERT_TRUE(channel->Connect());
295   ASSERT_TRUE(channel->AcceptsConnections());
296   ASSERT_FALSE(channel->HasAcceptedConnection());
297 
298   base::ProcessHandle handle = SpawnChild("IPCChannelPosixTestConnectionProc");
299   ASSERT_TRUE(handle);
300   SpinRunLoop(TestTimeouts::action_max_timeout());
301   ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status());
302   ASSERT_TRUE(channel->HasAcceptedConnection());
303   IPC::Message* message = new IPC::Message(0,  // routing_id
304                                            kQuitMessage,  // message type
305                                            IPC::Message::PRIORITY_NORMAL);
306   channel->Send(message);
307   SpinRunLoop(TestTimeouts::action_timeout());
308   int exit_code = 0;
309   EXPECT_TRUE(base::WaitForExitCode(handle, &exit_code));
310   EXPECT_EQ(0, exit_code);
311   ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status());
312   ASSERT_FALSE(channel->HasAcceptedConnection());
313 }
314 
TEST_F(IPCChannelPosixTest,ResetState)315 TEST_F(IPCChannelPosixTest, ResetState) {
316   // Test creating a connection to an external process. Close the connection,
317   // but continue to listen and make sure another external process can connect
318   // to us.
319   IPCChannelPosixTestListener listener(false);
320   IPC::ChannelHandle chan_handle(GetConnectionSocketName());
321   SetUpSocket(&chan_handle, IPC::Channel::MODE_NAMED_SERVER);
322   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
323       chan_handle, IPC::Channel::MODE_NAMED_SERVER, &listener));
324   ASSERT_TRUE(channel->Connect());
325   ASSERT_TRUE(channel->AcceptsConnections());
326   ASSERT_FALSE(channel->HasAcceptedConnection());
327 
328   base::ProcessHandle handle = SpawnChild("IPCChannelPosixTestConnectionProc");
329   ASSERT_TRUE(handle);
330   SpinRunLoop(TestTimeouts::action_max_timeout());
331   ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status());
332   ASSERT_TRUE(channel->HasAcceptedConnection());
333   channel->ResetToAcceptingConnectionState();
334   ASSERT_FALSE(channel->HasAcceptedConnection());
335 
336   base::ProcessHandle handle2 = SpawnChild("IPCChannelPosixTestConnectionProc");
337   ASSERT_TRUE(handle2);
338   SpinRunLoop(TestTimeouts::action_max_timeout());
339   ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status());
340   ASSERT_TRUE(channel->HasAcceptedConnection());
341   IPC::Message* message = new IPC::Message(0,  // routing_id
342                                            kQuitMessage,  // message type
343                                            IPC::Message::PRIORITY_NORMAL);
344   channel->Send(message);
345   SpinRunLoop(TestTimeouts::action_timeout());
346   EXPECT_TRUE(base::KillProcess(handle, 0, false));
347   int exit_code = 0;
348   EXPECT_TRUE(base::WaitForExitCode(handle2, &exit_code));
349   EXPECT_EQ(0, exit_code);
350   ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status());
351   ASSERT_FALSE(channel->HasAcceptedConnection());
352 }
353 
TEST_F(IPCChannelPosixTest,BadChannelName)354 TEST_F(IPCChannelPosixTest, BadChannelName) {
355   // Test empty name
356   IPC::ChannelHandle handle("");
357   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
358       handle, IPC::Channel::MODE_NAMED_SERVER, NULL));
359   ASSERT_FALSE(channel->Connect());
360 
361   // Test name that is too long.
362   const char *kTooLongName = "This_is_a_very_long_name_to_proactively_implement"
363                              "client-centered_synergy_through_top-line"
364                              "platforms_Phosfluorescently_disintermediate_"
365                              "clicks-and-mortar_best_practices_without_"
366                              "future-proof_growth_strategies_Continually"
367                              "pontificate_proactive_potentialities_before"
368                              "leading-edge_processes";
369   EXPECT_GE(strlen(kTooLongName), IPC::kMaxSocketNameLength);
370   IPC::ChannelHandle handle2(kTooLongName);
371   scoped_ptr<IPC::ChannelPosix> channel2(new IPC::ChannelPosix(
372       handle2, IPC::Channel::MODE_NAMED_SERVER, NULL));
373   EXPECT_FALSE(channel2->Connect());
374 }
375 
TEST_F(IPCChannelPosixTest,MultiConnection)376 TEST_F(IPCChannelPosixTest, MultiConnection) {
377   // Test setting up a connection to an external process, and then have
378   // another external process attempt to connect to us.
379   IPCChannelPosixTestListener listener(false);
380   IPC::ChannelHandle chan_handle(GetConnectionSocketName());
381   SetUpSocket(&chan_handle, IPC::Channel::MODE_NAMED_SERVER);
382   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
383       chan_handle, IPC::Channel::MODE_NAMED_SERVER, &listener));
384   ASSERT_TRUE(channel->Connect());
385   ASSERT_TRUE(channel->AcceptsConnections());
386   ASSERT_FALSE(channel->HasAcceptedConnection());
387 
388   base::ProcessHandle handle = SpawnChild("IPCChannelPosixTestConnectionProc");
389   ASSERT_TRUE(handle);
390   SpinRunLoop(TestTimeouts::action_max_timeout());
391   ASSERT_EQ(IPCChannelPosixTestListener::CONNECTED, listener.status());
392   ASSERT_TRUE(channel->HasAcceptedConnection());
393   base::ProcessHandle handle2 = SpawnChild("IPCChannelPosixFailConnectionProc");
394   ASSERT_TRUE(handle2);
395   SpinRunLoop(TestTimeouts::action_max_timeout());
396   int exit_code = 0;
397   EXPECT_TRUE(base::WaitForExitCode(handle2, &exit_code));
398   EXPECT_EQ(exit_code, 0);
399   ASSERT_EQ(IPCChannelPosixTestListener::DENIED, listener.status());
400   ASSERT_TRUE(channel->HasAcceptedConnection());
401   IPC::Message* message = new IPC::Message(0,  // routing_id
402                                            kQuitMessage,  // message type
403                                            IPC::Message::PRIORITY_NORMAL);
404   channel->Send(message);
405   SpinRunLoop(TestTimeouts::action_timeout());
406   EXPECT_TRUE(base::WaitForExitCode(handle, &exit_code));
407   EXPECT_EQ(exit_code, 0);
408   ASSERT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status());
409   ASSERT_FALSE(channel->HasAcceptedConnection());
410 }
411 
TEST_F(IPCChannelPosixTest,DoubleServer)412 TEST_F(IPCChannelPosixTest, DoubleServer) {
413   // Test setting up two servers with the same name.
414   IPCChannelPosixTestListener listener(false);
415   IPCChannelPosixTestListener listener2(false);
416   IPC::ChannelHandle chan_handle(GetConnectionSocketName());
417   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
418       chan_handle, IPC::Channel::MODE_SERVER, &listener));
419   scoped_ptr<IPC::ChannelPosix> channel2(new IPC::ChannelPosix(
420       chan_handle, IPC::Channel::MODE_SERVER, &listener2));
421   ASSERT_TRUE(channel->Connect());
422   ASSERT_FALSE(channel2->Connect());
423 }
424 
TEST_F(IPCChannelPosixTest,BadMode)425 TEST_F(IPCChannelPosixTest, BadMode) {
426   // Test setting up two servers with a bad mode.
427   IPCChannelPosixTestListener listener(false);
428   IPC::ChannelHandle chan_handle(GetConnectionSocketName());
429   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
430       chan_handle, IPC::Channel::MODE_NONE, &listener));
431   ASSERT_FALSE(channel->Connect());
432 }
433 
TEST_F(IPCChannelPosixTest,IsNamedServerInitialized)434 TEST_F(IPCChannelPosixTest, IsNamedServerInitialized) {
435   const std::string& connection_socket_name = GetConnectionSocketName();
436   IPCChannelPosixTestListener listener(false);
437   IPC::ChannelHandle chan_handle(connection_socket_name);
438   ASSERT_TRUE(base::DeleteFile(base::FilePath(connection_socket_name), false));
439   ASSERT_FALSE(IPC::Channel::IsNamedServerInitialized(
440       connection_socket_name));
441   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
442       chan_handle, IPC::Channel::MODE_NAMED_SERVER, &listener));
443   ASSERT_TRUE(IPC::Channel::IsNamedServerInitialized(
444       connection_socket_name));
445   channel->Close();
446   ASSERT_FALSE(IPC::Channel::IsNamedServerInitialized(
447       connection_socket_name));
448 }
449 
450 // A long running process that connects to us
MULTIPROCESS_TEST_MAIN(IPCChannelPosixTestConnectionProc)451 MULTIPROCESS_TEST_MAIN(IPCChannelPosixTestConnectionProc) {
452   base::MessageLoopForIO message_loop;
453   IPCChannelPosixTestListener listener(true);
454   IPC::ChannelHandle handle(IPCChannelPosixTest::GetConnectionSocketName());
455   IPCChannelPosixTest::SetUpSocket(&handle, IPC::Channel::MODE_NAMED_CLIENT);
456   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
457       handle, IPC::Channel::MODE_NAMED_CLIENT, &listener));
458   EXPECT_TRUE(channel->Connect());
459   IPCChannelPosixTest::SpinRunLoop(TestTimeouts::action_max_timeout());
460   EXPECT_EQ(IPCChannelPosixTestListener::MESSAGE_RECEIVED, listener.status());
461   return 0;
462 }
463 
464 // Simple external process that shouldn't be able to connect to us.
MULTIPROCESS_TEST_MAIN(IPCChannelPosixFailConnectionProc)465 MULTIPROCESS_TEST_MAIN(IPCChannelPosixFailConnectionProc) {
466   base::MessageLoopForIO message_loop;
467   IPCChannelPosixTestListener listener(false);
468   IPC::ChannelHandle handle(IPCChannelPosixTest::GetConnectionSocketName());
469   IPCChannelPosixTest::SetUpSocket(&handle, IPC::Channel::MODE_NAMED_CLIENT);
470   scoped_ptr<IPC::ChannelPosix> channel(new IPC::ChannelPosix(
471       handle, IPC::Channel::MODE_NAMED_CLIENT, &listener));
472 
473   // In this case connect may succeed or fail depending on if the packet
474   // actually gets sent at sendmsg. Since we never delay on send, we may not
475   // see the error. However even if connect succeeds, eventually we will get an
476   // error back since the channel will be closed when we attempt to read from
477   // it.
478   bool connected = channel->Connect();
479   if (connected) {
480     IPCChannelPosixTest::SpinRunLoop(TestTimeouts::action_max_timeout());
481     EXPECT_EQ(IPCChannelPosixTestListener::CHANNEL_ERROR, listener.status());
482   } else {
483     EXPECT_EQ(IPCChannelPosixTestListener::DISCONNECTED, listener.status());
484   }
485   return 0;
486 }
487 
488 }  // namespace
489