net/udp/udp_socket_unittest.cc

   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 #include "net/udp/udp_socket.h"
   6
   7 #include "net/udp/udp_client_socket.h"
   8 #include "net/udp/udp_server_socket.h"
   9
  10 #include "base/basictypes.h"
  11 #include "base/bind.h"
  12 #include "base/location.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "base/run_loop.h"
  15 #include "base/single_thread_task_runner.h"
  16 #include "base/stl_util.h"
  17 #include "base/thread_task_runner_handle.h"
  18 #include "net/base/io_buffer.h"
  19 #include "net/base/ip_endpoint.h"
  20 #include "net/base/net_errors.h"
  21 #include "net/base/net_util.h"
  22 #include "net/base/test_completion_callback.h"
  23 #include "net/log/test_net_log.h"
  24 #include "net/log/test_net_log_entry.h"
  25 #include "net/log/test_net_log_util.h"
  26 #include "net/test/net_test_suite.h"
  27 #include "testing/gtest/include/gtest/gtest.h"
  28 #include "testing/platform_test.h"
  29
  30 namespace net {
  31
  32 namespace {
  33
  34 class UDPSocketTest : public PlatformTest {
  35  public:
  36   UDPSocketTest() : buffer_(new IOBufferWithSize(kMaxRead)) {}
  37
  38   // Blocks until data is read from the socket.
  39   std::string RecvFromSocket(UDPServerSocket* socket) {
  40     TestCompletionCallback callback;
  41
  42     int rv = socket->RecvFrom(
  43         buffer_.get(), kMaxRead, &recv_from_address_, callback.callback());
  44     if (rv == ERR_IO_PENDING)
  45       rv = callback.WaitForResult();
  46     if (rv < 0)
  47       return std::string();  // error!
  48     return std::string(buffer_->data(), rv);
  49   }
  50
  51   // Loop until |msg| has been written to the socket or until an
  52   // error occurs.
  53   // If |address| is specified, then it is used for the destination
  54   // to send to. Otherwise, will send to the last socket this server
  55   // received from.
  56   int SendToSocket(UDPServerSocket* socket, const std::string& msg) {
  57     return SendToSocket(socket, msg, recv_from_address_);
  58   }
  59
  60   int SendToSocket(UDPServerSocket* socket,
  61                    std::string msg,
  62                    const IPEndPoint& address) {
  63     TestCompletionCallback callback;
  64
  65     int length = msg.length();
  66     scoped_refptr<StringIOBuffer> io_buffer(new StringIOBuffer(msg));
  67     scoped_refptr<DrainableIOBuffer> buffer(
  68         new DrainableIOBuffer(io_buffer.get(), length));
  69
  70     int bytes_sent = 0;
  71     while (buffer->BytesRemaining()) {
  72       int rv = socket->SendTo(
  73           buffer.get(), buffer->BytesRemaining(), address, callback.callback());
  74       if (rv == ERR_IO_PENDING)
  75         rv = callback.WaitForResult();
  76       if (rv <= 0)
  77         return bytes_sent > 0 ? bytes_sent : rv;
  78       bytes_sent += rv;
  79       buffer->DidConsume(rv);
  80     }
  81     return bytes_sent;
  82   }
  83
  84   std::string ReadSocket(UDPClientSocket* socket) {
  85     TestCompletionCallback callback;
  86
  87     int rv = socket->Read(buffer_.get(), kMaxRead, callback.callback());
  88     if (rv == ERR_IO_PENDING)
  89       rv = callback.WaitForResult();
  90     if (rv < 0)
  91       return std::string();  // error!
  92     return std::string(buffer_->data(), rv);
  93   }
  94
  95   // Loop until |msg| has been written to the socket or until an
  96   // error occurs.
  97   int WriteSocket(UDPClientSocket* socket, const std::string& msg) {
  98     TestCompletionCallback callback;
  99
 100     int length = msg.length();
 101     scoped_refptr<StringIOBuffer> io_buffer(new StringIOBuffer(msg));
 102     scoped_refptr<DrainableIOBuffer> buffer(
 103         new DrainableIOBuffer(io_buffer.get(), length));
 104
 105     int bytes_sent = 0;
 106     while (buffer->BytesRemaining()) {
 107       int rv = socket->Write(
 108           buffer.get(), buffer->BytesRemaining(), callback.callback());
 109       if (rv == ERR_IO_PENDING)
 110         rv = callback.WaitForResult();
 111       if (rv <= 0)
 112         return bytes_sent > 0 ? bytes_sent : rv;
 113       bytes_sent += rv;
 114       buffer->DidConsume(rv);
 115     }
 116     return bytes_sent;
 117   }
 118
 119   void WriteSocketIgnoreResult(UDPClientSocket* socket,
 120                                const std::string& msg) {
 121     WriteSocket(socket, msg);
 122   }
 123
 124   // Creates an address from ip address and port and writes it to |*address|.
 125   void CreateUDPAddress(const std::string& ip_str,
 126                         uint16 port,
 127                         IPEndPoint* address) {
 128     IPAddressNumber ip_number;
 129     bool rv = ParseIPLiteralToNumber(ip_str, &ip_number);
 130     if (!rv)
 131       return;
 132     *address = IPEndPoint(ip_number, port);
 133   }
 134
 135   // Run unit test for a connection test.
 136   // |use_nonblocking_io| is used to switch between overlapped and non-blocking
 137   // IO on Windows. It has no effect in other ports.
 138   void ConnectTest(bool use_nonblocking_io);
 139
 140  protected:
 141   static const int kMaxRead = 1024;
 142   scoped_refptr<IOBufferWithSize> buffer_;
 143   IPEndPoint recv_from_address_;
 144 };
 145
 146 void ReadCompleteCallback(int* result_out, base::Closure callback, int result) {
 147   *result_out = result;
 148   callback.Run();
 149 }
 150
 151 void UDPSocketTest::ConnectTest(bool use_nonblocking_io) {
 152   const uint16 kPort = 9999;
 153   std::string simple_message("hello world!");
 154
 155   // Setup the server to listen.
 156   IPEndPoint bind_address;
 157   CreateUDPAddress("127.0.0.1", kPort, &bind_address);
 158   TestNetLog server_log;
 159   scoped_ptr<UDPServerSocket> server(
 160       new UDPServerSocket(&server_log, NetLog::Source()));
 161 #if defined(OS_WIN)
 162   if (use_nonblocking_io)
 163     server->UseNonBlockingIO();
 164 #endif
 165   server->AllowAddressReuse();
 166   int rv = server->Listen(bind_address);
 167   ASSERT_EQ(OK, rv);
 168
 169   // Setup the client.
 170   IPEndPoint server_address;
 171   CreateUDPAddress("127.0.0.1", kPort, &server_address);
 172   TestNetLog client_log;
 173   scoped_ptr<UDPClientSocket> client(
 174       new UDPClientSocket(DatagramSocket::DEFAULT_BIND, RandIntCallback(),
 175                           &client_log, NetLog::Source()));
 176 #if defined(OS_WIN)
 177   if (use_nonblocking_io)
 178     client->UseNonBlockingIO();
 179 #endif
 180
 181   rv = client->Connect(server_address);
 182   EXPECT_EQ(OK, rv);
 183
 184   // Client sends to the server.
 185   rv = WriteSocket(client.get(), simple_message);
 186   EXPECT_EQ(simple_message.length(), static_cast<size_t>(rv));
 187
 188   // Server waits for message.
 189   std::string str = RecvFromSocket(server.get());
 190   DCHECK(simple_message == str);
 191
 192   // Server echoes reply.
 193   rv = SendToSocket(server.get(), simple_message);
 194   EXPECT_EQ(simple_message.length(), static_cast<size_t>(rv));
 195
 196   // Client waits for response.
 197   str = ReadSocket(client.get());
 198   DCHECK(simple_message == str);
 199
 200   // Test asynchronous read. Server waits for message.
 201   base::RunLoop run_loop;
 202   int read_result = 0;
 203   rv = server->RecvFrom(
 204       buffer_.get(), kMaxRead, &recv_from_address_,
 205       base::Bind(&ReadCompleteCallback, &read_result, run_loop.QuitClosure()));
 206   EXPECT_EQ(ERR_IO_PENDING, rv);
 207
 208   // Client sends to the server.
 209   base::ThreadTaskRunnerHandle::Get()->PostTask(
 210       FROM_HERE,
 211       base::Bind(&UDPSocketTest::WriteSocketIgnoreResult,
 212                  base::Unretained(this), client.get(), simple_message));
 213   run_loop.Run();
 214   EXPECT_EQ(simple_message.length(), static_cast<size_t>(read_result));
 215   EXPECT_EQ(simple_message, std::string(buffer_->data(), read_result));
 216
 217   // Delete sockets so they log their final events.
 218   server.reset();
 219   client.reset();
 220
 221   // Check the server's log.
 222   TestNetLogEntry::List server_entries;
 223   server_log.GetEntries(&server_entries);
 224   EXPECT_EQ(5u, server_entries.size());
 225   EXPECT_TRUE(
 226       LogContainsBeginEvent(server_entries, 0, NetLog::TYPE_SOCKET_ALIVE));
 227   EXPECT_TRUE(LogContainsEvent(
 228       server_entries, 1, NetLog::TYPE_UDP_BYTES_RECEIVED, NetLog::PHASE_NONE));
 229   EXPECT_TRUE(LogContainsEvent(server_entries, 2, NetLog::TYPE_UDP_BYTES_SENT,
 230                                NetLog::PHASE_NONE));
 231   EXPECT_TRUE(LogContainsEvent(
 232       server_entries, 3, NetLog::TYPE_UDP_BYTES_RECEIVED, NetLog::PHASE_NONE));
 233   EXPECT_TRUE(
 234       LogContainsEndEvent(server_entries, 4, NetLog::TYPE_SOCKET_ALIVE));
 235
 236   // Check the client's log.
 237   TestNetLogEntry::List client_entries;
 238   client_log.GetEntries(&client_entries);
 239   EXPECT_EQ(7u, client_entries.size());
 240   EXPECT_TRUE(
 241       LogContainsBeginEvent(client_entries, 0, NetLog::TYPE_SOCKET_ALIVE));
 242   EXPECT_TRUE(
 243       LogContainsBeginEvent(client_entries, 1, NetLog::TYPE_UDP_CONNECT));
 244   EXPECT_TRUE(LogContainsEndEvent(client_entries, 2, NetLog::TYPE_UDP_CONNECT));
 245   EXPECT_TRUE(LogContainsEvent(client_entries, 3, NetLog::TYPE_UDP_BYTES_SENT,
 246                                NetLog::PHASE_NONE));
 247   EXPECT_TRUE(LogContainsEvent(
 248       client_entries, 4, NetLog::TYPE_UDP_BYTES_RECEIVED, NetLog::PHASE_NONE));
 249   EXPECT_TRUE(LogContainsEvent(client_entries, 5, NetLog::TYPE_UDP_BYTES_SENT,
 250                                NetLog::PHASE_NONE));
 251   EXPECT_TRUE(
 252       LogContainsEndEvent(client_entries, 6, NetLog::TYPE_SOCKET_ALIVE));
 253 }
 254
 255 TEST_F(UDPSocketTest, Connect) {
 256   // The variable |use_nonblocking_io| has no effect in non-Windows ports.
 257   ConnectTest(false);
 258 }
 259
 260 #if defined(OS_WIN)
 261 TEST_F(UDPSocketTest, ConnectNonBlocking) {
 262   ConnectTest(true);
 263 }
 264 #endif
 265
 266 #if defined(OS_MACOSX)
 267 // UDPSocketPrivate_Broadcast is disabled for OSX because it requires
 268 // root permissions on OSX 10.7+.
 269 TEST_F(UDPSocketTest, DISABLED_Broadcast) {
 270 #elif defined(OS_ANDROID)
 271 // Disabled for Android because devices attached to testbots don't have default
 272 // network, so broadcasting to 255.255.255.255 returns error -109 (Address not
 273 // reachable). crbug.com/139144.
 274 TEST_F(UDPSocketTest, DISABLED_Broadcast) {
 275 #else
 276 TEST_F(UDPSocketTest, Broadcast) {
 277 #endif
 278   const uint16 kPort = 9999;
 279   std::string first_message("first message"), second_message("second message");
 280
 281   IPEndPoint broadcast_address;
 282   CreateUDPAddress("255.255.255.255", kPort, &broadcast_address);
 283   IPEndPoint listen_address;
 284   CreateUDPAddress("0.0.0.0", kPort, &listen_address);
 285
 286   TestNetLog server1_log, server2_log;
 287   scoped_ptr<UDPServerSocket> server1(
 288       new UDPServerSocket(&server1_log, NetLog::Source()));
 289   scoped_ptr<UDPServerSocket> server2(
 290       new UDPServerSocket(&server2_log, NetLog::Source()));
 291   server1->AllowAddressReuse();
 292   server1->AllowBroadcast();
 293   server2->AllowAddressReuse();
 294   server2->AllowBroadcast();
 295
 296   int rv = server1->Listen(listen_address);
 297   EXPECT_EQ(OK, rv);
 298   rv = server2->Listen(listen_address);
 299   EXPECT_EQ(OK, rv);
 300
 301   rv = SendToSocket(server1.get(), first_message, broadcast_address);
 302   ASSERT_EQ(static_cast<int>(first_message.size()), rv);
 303   std::string str = RecvFromSocket(server1.get());
 304   ASSERT_EQ(first_message, str);
 305   str = RecvFromSocket(server2.get());
 306   ASSERT_EQ(first_message, str);
 307
 308   rv = SendToSocket(server2.get(), second_message, broadcast_address);
 309   ASSERT_EQ(static_cast<int>(second_message.size()), rv);
 310   str = RecvFromSocket(server1.get());
 311   ASSERT_EQ(second_message, str);
 312   str = RecvFromSocket(server2.get());
 313   ASSERT_EQ(second_message, str);
 314 }
 315
 316 // In this test, we verify that random binding logic works, which attempts
 317 // to bind to a random port and returns if succeeds, otherwise retries for
 318 // |kBindRetries| number of times.
 319
 320 // To generate the scenario, we first create |kBindRetries| number of
 321 // UDPClientSockets with default binding policy and connect to the same
 322 // peer and save the used port numbers.  Then we get rid of the last
 323 // socket, making sure that the local port it was bound to is available.
 324 // Finally, we create a socket with random binding policy, passing it a
 325 // test PRNG that would serve used port numbers in the array, one after
 326 // another.  At the end, we make sure that the test socket was bound to the
 327 // port that became available after deleting the last socket with default
 328 // binding policy.
 329
 330 // We do not test the randomness of bound ports, but that we are using
 331 // passed in PRNG correctly, thus, it's the duty of PRNG to produce strong
 332 // random numbers.
 333 static const int kBindRetries = 10;
 334
 335 class TestPrng {
 336  public:
 337   explicit TestPrng(const std::deque<int>& numbers) : numbers_(numbers) {}
 338   int GetNext(int /* min */, int /* max */) {
 339     DCHECK(!numbers_.empty());
 340     int rv = numbers_.front();
 341     numbers_.pop_front();
 342     return rv;
 343   }
 344  private:
 345   std::deque<int> numbers_;
 346
 347   DISALLOW_COPY_AND_ASSIGN(TestPrng);
 348 };
 349
 350 TEST_F(UDPSocketTest, ConnectRandomBind) {
 351   std::vector<UDPClientSocket*> sockets;
 352   IPEndPoint peer_address;
 353   CreateUDPAddress("127.0.0.1", 53, &peer_address);
 354
 355   // Create and connect sockets and save port numbers.
 356   std::deque<int> used_ports;
 357   for (int i = 0; i < kBindRetries; ++i) {
 358     UDPClientSocket* socket =
 359         new UDPClientSocket(DatagramSocket::DEFAULT_BIND,
 360                             RandIntCallback(),
 361                             NULL,
 362                             NetLog::Source());
 363     sockets.push_back(socket);
 364     EXPECT_EQ(OK, socket->Connect(peer_address));
 365
 366     IPEndPoint client_address;
 367     EXPECT_EQ(OK, socket->GetLocalAddress(&client_address));
 368     used_ports.push_back(client_address.port());
 369   }
 370
 371   // Free the last socket, its local port is still in |used_ports|.
 372   delete sockets.back();
 373   sockets.pop_back();
 374
 375   TestPrng test_prng(used_ports);
 376   RandIntCallback rand_int_cb =
 377       base::Bind(&TestPrng::GetNext, base::Unretained(&test_prng));
 378
 379   // Create a socket with random binding policy and connect.
 380   scoped_ptr<UDPClientSocket> test_socket(
 381       new UDPClientSocket(DatagramSocket::RANDOM_BIND,
 382                           rand_int_cb,
 383                           NULL,
 384                           NetLog::Source()));
 385   EXPECT_EQ(OK, test_socket->Connect(peer_address));
 386
 387   // Make sure that the last port number in the |used_ports| was used.
 388   IPEndPoint client_address;
 389   EXPECT_EQ(OK, test_socket->GetLocalAddress(&client_address));
 390   EXPECT_EQ(used_ports.back(), client_address.port());
 391
 392   STLDeleteElements(&sockets);
 393 }
 394
 395 // Return a privileged port (under 1024) so binding will fail.
 396 int PrivilegedRand(int min, int max) {
 397   // Chosen by fair dice roll.  Guaranteed to be random.
 398   return 4;
 399 }
 400
 401 TEST_F(UDPSocketTest, ConnectFail) {
 402   IPEndPoint peer_address;
 403   CreateUDPAddress("0.0.0.0", 53, &peer_address);
 404
 405   scoped_ptr<UDPSocket> socket(
 406       new UDPSocket(DatagramSocket::RANDOM_BIND,
 407                     base::Bind(&PrivilegedRand),
 408                     NULL,
 409                     NetLog::Source()));
 410   int rv = socket->Open(peer_address.GetFamily());
 411   EXPECT_EQ(OK, rv);
 412   rv = socket->Connect(peer_address);
 413   // Connect should have failed since we couldn't bind to that port,
 414   EXPECT_NE(OK, rv);
 415   // Make sure that UDPSocket actually closed the socket.
 416   EXPECT_FALSE(socket->is_connected());
 417 }
 418
 419 // In this test, we verify that connect() on a socket will have the effect
 420 // of filtering reads on this socket only to data read from the destination
 421 // we connected to.
 422 //
 423 // The purpose of this test is that some documentation indicates that connect
 424 // binds the client's sends to send to a particular server endpoint, but does
 425 // not bind the client's reads to only be from that endpoint, and that we need
 426 // to always use recvfrom() to disambiguate.
 427 TEST_F(UDPSocketTest, VerifyConnectBindsAddr) {
 428   const uint16 kPort1 = 9999;
 429   const uint16 kPort2 = 10000;
 430   std::string simple_message("hello world!");
 431   std::string foreign_message("BAD MESSAGE TO GET!!");
 432
 433   // Setup the first server to listen.
 434   IPEndPoint bind_address;
 435   CreateUDPAddress("127.0.0.1", kPort1, &bind_address);
 436   UDPServerSocket server1(NULL, NetLog::Source());
 437   server1.AllowAddressReuse();
 438   int rv = server1.Listen(bind_address);
 439   ASSERT_EQ(OK, rv);
 440
 441   // Setup the second server to listen.
 442   CreateUDPAddress("127.0.0.1", kPort2, &bind_address);
 443   UDPServerSocket server2(NULL, NetLog::Source());
 444   server2.AllowAddressReuse();
 445   rv = server2.Listen(bind_address);
 446   ASSERT_EQ(OK, rv);
 447
 448   // Setup the client, connected to server 1.
 449   IPEndPoint server_address;
 450   CreateUDPAddress("127.0.0.1", kPort1, &server_address);
 451   UDPClientSocket client(DatagramSocket::DEFAULT_BIND,
 452                          RandIntCallback(),
 453                          NULL,
 454                          NetLog::Source());
 455   rv = client.Connect(server_address);
 456   EXPECT_EQ(OK, rv);
 457
 458   // Client sends to server1.
 459   rv = WriteSocket(&client, simple_message);
 460   EXPECT_EQ(simple_message.length(), static_cast<size_t>(rv));
 461
 462   // Server1 waits for message.
 463   std::string str = RecvFromSocket(&server1);
 464   DCHECK(simple_message == str);
 465
 466   // Get the client's address.
 467   IPEndPoint client_address;
 468   rv = client.GetLocalAddress(&client_address);
 469   EXPECT_EQ(OK, rv);
 470
 471   // Server2 sends reply.
 472   rv = SendToSocket(&server2, foreign_message,
 473                     client_address);
 474   EXPECT_EQ(foreign_message.length(), static_cast<size_t>(rv));
 475
 476   // Server1 sends reply.
 477   rv = SendToSocket(&server1, simple_message,
 478                     client_address);
 479   EXPECT_EQ(simple_message.length(), static_cast<size_t>(rv));
 480
 481   // Client waits for response.
 482   str = ReadSocket(&client);
 483   DCHECK(simple_message == str);
 484 }
 485
 486 TEST_F(UDPSocketTest, ClientGetLocalPeerAddresses) {
 487   struct TestData {
 488     std::string remote_address;
 489     std::string local_address;
 490     bool may_fail;
 491   } tests[] = {
 492     { "127.0.00.1", "127.0.0.1", false },
 493     { "::1", "::1", true },
 494 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 495     // Addresses below are disabled on Android. See crbug.com/161248
 496     // They are also disabled on iOS. See https://crbug.com/523225
 497     { "192.168.1.1", "127.0.0.1", false },
 498     { "2001:db8:0::42", "::1", true },
 499 #endif
 500   };
 501   for (size_t i = 0; i < arraysize(tests); i++) {
 502     SCOPED_TRACE(std::string("Connecting from ") +  tests[i].local_address +
 503                  std::string(" to ") + tests[i].remote_address);
 504
 505     IPAddressNumber ip_number;
 506     ParseIPLiteralToNumber(tests[i].remote_address, &ip_number);
 507     IPEndPoint remote_address(ip_number, 80);
 508     ParseIPLiteralToNumber(tests[i].local_address, &ip_number);
 509     IPEndPoint local_address(ip_number, 80);
 510
 511     UDPClientSocket client(DatagramSocket::DEFAULT_BIND,
 512                            RandIntCallback(),
 513                            NULL,
 514                            NetLog::Source());
 515     int rv = client.Connect(remote_address);
 516     if (tests[i].may_fail && rv == ERR_ADDRESS_UNREACHABLE) {
 517       // Connect() may return ERR_ADDRESS_UNREACHABLE for IPv6
 518       // addresses if IPv6 is not configured.
 519       continue;
 520     }
 521
 522     EXPECT_LE(ERR_IO_PENDING, rv);
 523
 524     IPEndPoint fetched_local_address;
 525     rv = client.GetLocalAddress(&fetched_local_address);
 526     EXPECT_EQ(OK, rv);
 527
 528     // TODO(mbelshe): figure out how to verify the IP and port.
 529     //                The port is dynamically generated by the udp stack.
 530     //                The IP is the real IP of the client, not necessarily
 531     //                loopback.
 532     //EXPECT_EQ(local_address.address(), fetched_local_address.address());
 533
 534     IPEndPoint fetched_remote_address;
 535     rv = client.GetPeerAddress(&fetched_remote_address);
 536     EXPECT_EQ(OK, rv);
 537
 538     EXPECT_EQ(remote_address, fetched_remote_address);
 539   }
 540 }
 541
 542 TEST_F(UDPSocketTest, ServerGetLocalAddress) {
 543   IPEndPoint bind_address;
 544   CreateUDPAddress("127.0.0.1", 0, &bind_address);
 545   UDPServerSocket server(NULL, NetLog::Source());
 546   int rv = server.Listen(bind_address);
 547   EXPECT_EQ(OK, rv);
 548
 549   IPEndPoint local_address;
 550   rv = server.GetLocalAddress(&local_address);
 551   EXPECT_EQ(rv, 0);
 552
 553   // Verify that port was allocated.
 554   EXPECT_GT(local_address.port(), 0);
 555   EXPECT_EQ(local_address.address(), bind_address.address());
 556 }
 557
 558 TEST_F(UDPSocketTest, ServerGetPeerAddress) {
 559   IPEndPoint bind_address;
 560   CreateUDPAddress("127.0.0.1", 0, &bind_address);
 561   UDPServerSocket server(NULL, NetLog::Source());
 562   int rv = server.Listen(bind_address);
 563   EXPECT_EQ(OK, rv);
 564
 565   IPEndPoint peer_address;
 566   rv = server.GetPeerAddress(&peer_address);
 567   EXPECT_EQ(rv, ERR_SOCKET_NOT_CONNECTED);
 568 }
 569
 570 // Close the socket while read is pending.
 571 TEST_F(UDPSocketTest, CloseWithPendingRead) {
 572   IPEndPoint bind_address;
 573   CreateUDPAddress("127.0.0.1", 0, &bind_address);
 574   UDPServerSocket server(NULL, NetLog::Source());
 575   int rv = server.Listen(bind_address);
 576   EXPECT_EQ(OK, rv);
 577
 578   TestCompletionCallback callback;
 579   IPEndPoint from;
 580   rv = server.RecvFrom(buffer_.get(), kMaxRead, &from, callback.callback());
 581   EXPECT_EQ(rv, ERR_IO_PENDING);
 582
 583   server.Close();
 584
 585   EXPECT_FALSE(callback.have_result());
 586 }
 587
 588 #if defined(OS_ANDROID)
 589 // Some Android devices do not support multicast socket.
 590 // The ones supporting multicast need WifiManager.MulitcastLock to enable it.
 591 // http://goo.gl/jjAk9
 592 #define MAYBE_JoinMulticastGroup DISABLED_JoinMulticastGroup
 593 #else
 594 #define MAYBE_JoinMulticastGroup JoinMulticastGroup
 595 #endif  // defined(OS_ANDROID)
 596
 597 TEST_F(UDPSocketTest, MAYBE_JoinMulticastGroup) {
 598   const uint16 kPort = 9999;
 599   const char kGroup[] = "237.132.100.17";
 600
 601   IPEndPoint bind_address;
 602   CreateUDPAddress("0.0.0.0", kPort, &bind_address);
 603   IPAddressNumber group_ip;
 604   EXPECT_TRUE(ParseIPLiteralToNumber(kGroup, &group_ip));
 605
 606   UDPSocket socket(DatagramSocket::DEFAULT_BIND,
 607                    RandIntCallback(),
 608                    NULL,
 609                    NetLog::Source());
 610   EXPECT_EQ(OK, socket.Open(bind_address.GetFamily()));
 611   EXPECT_EQ(OK, socket.Bind(bind_address));
 612   EXPECT_EQ(OK, socket.JoinGroup(group_ip));
 613   // Joining group multiple times.
 614   EXPECT_NE(OK, socket.JoinGroup(group_ip));
 615   EXPECT_EQ(OK, socket.LeaveGroup(group_ip));
 616   // Leaving group multiple times.
 617   EXPECT_NE(OK, socket.LeaveGroup(group_ip));
 618
 619   socket.Close();
 620 }
 621
 622 TEST_F(UDPSocketTest, MulticastOptions) {
 623   const uint16 kPort = 9999;
 624   IPEndPoint bind_address;
 625   CreateUDPAddress("0.0.0.0", kPort, &bind_address);
 626
 627   UDPSocket socket(DatagramSocket::DEFAULT_BIND,
 628                    RandIntCallback(),
 629                    NULL,
 630                    NetLog::Source());
 631   // Before binding.
 632   EXPECT_EQ(OK, socket.SetMulticastLoopbackMode(false));
 633   EXPECT_EQ(OK, socket.SetMulticastLoopbackMode(true));
 634   EXPECT_EQ(OK, socket.SetMulticastTimeToLive(0));
 635   EXPECT_EQ(OK, socket.SetMulticastTimeToLive(3));
 636   EXPECT_NE(OK, socket.SetMulticastTimeToLive(-1));
 637   EXPECT_EQ(OK, socket.SetMulticastInterface(0));
 638
 639   EXPECT_EQ(OK, socket.Open(bind_address.GetFamily()));
 640   EXPECT_EQ(OK, socket.Bind(bind_address));
 641
 642   EXPECT_NE(OK, socket.SetMulticastLoopbackMode(false));
 643   EXPECT_NE(OK, socket.SetMulticastTimeToLive(0));
 644   EXPECT_NE(OK, socket.SetMulticastInterface(0));
 645
 646   socket.Close();
 647 }
 648
 649 // Checking that DSCP bits are set correctly is difficult,
 650 // but let's check that the code doesn't crash at least.
 651 TEST_F(UDPSocketTest, SetDSCP) {
 652   // Setup the server to listen.
 653   IPEndPoint bind_address;
 654   UDPSocket client(DatagramSocket::DEFAULT_BIND,
 655                    RandIntCallback(),
 656                    NULL,
 657                    NetLog::Source());
 658   // We need a real IP, but we won't actually send anything to it.
 659   CreateUDPAddress("8.8.8.8", 9999, &bind_address);
 660   int rv = client.Open(bind_address.GetFamily());
 661   EXPECT_EQ(OK, rv);
 662
 663   rv = client.Connect(bind_address);
 664   if (rv != OK) {
 665     // Let's try localhost then..
 666     CreateUDPAddress("127.0.0.1", 9999, &bind_address);
 667     rv = client.Connect(bind_address);
 668   }
 669   EXPECT_EQ(OK, rv);
 670
 671   client.SetDiffServCodePoint(DSCP_NO_CHANGE);
 672   client.SetDiffServCodePoint(DSCP_AF41);
 673   client.SetDiffServCodePoint(DSCP_DEFAULT);
 674   client.SetDiffServCodePoint(DSCP_CS2);
 675   client.SetDiffServCodePoint(DSCP_NO_CHANGE);
 676   client.SetDiffServCodePoint(DSCP_DEFAULT);
 677   client.Close();
 678 }
 679
 680 }  // namespace
 681
 682 #if defined(OS_WIN)
 683
 684 namespace {
 685
 686 const HANDLE kFakeHandle = (HANDLE)19;
 687 const QOS_FLOWID kFakeFlowId = (QOS_FLOWID)27;
 688
 689 BOOL WINAPI FakeQOSCreateHandleFAIL(PQOS_VERSION version, PHANDLE handle) {
 690   EXPECT_EQ(0, version->MinorVersion);
 691   EXPECT_EQ(1, version->MajorVersion);
 692   SetLastError(ERROR_OPEN_FAILED);
 693   return false;
 694 }
 695
 696 BOOL WINAPI FakeQOSCreateHandle(PQOS_VERSION version, PHANDLE handle) {
 697   EXPECT_EQ(0, version->MinorVersion);
 698   EXPECT_EQ(1, version->MajorVersion);
 699   *handle = kFakeHandle;
 700   return true;
 701 }
 702
 703 BOOL WINAPI FakeQOSCloseHandle(HANDLE handle) {
 704   EXPECT_EQ(kFakeHandle, handle);
 705   return true;
 706 }
 707
 708 QOS_TRAFFIC_TYPE g_expected_traffic_type;
 709
 710 BOOL WINAPI FakeQOSAddSocketToFlow(HANDLE handle,
 711                                    SOCKET socket,
 712                                    PSOCKADDR addr,
 713                                    QOS_TRAFFIC_TYPE traffic_type,
 714                                    DWORD flags,
 715                                    PQOS_FLOWID flow_id) {
 716   EXPECT_EQ(kFakeHandle, handle);
 717   EXPECT_EQ(NULL, addr);
 718   EXPECT_EQ(QOS_NON_ADAPTIVE_FLOW, flags);
 719   EXPECT_EQ(0, *flow_id);
 720   *flow_id = kFakeFlowId;
 721   return true;
 722 }
 723
 724 BOOL WINAPI FakeQOSRemoveSocketFromFlow(HANDLE handle,
 725                                         SOCKET socket,
 726                                         QOS_FLOWID flowid,
 727                                         DWORD reserved) {
 728   EXPECT_EQ(kFakeHandle, handle);
 729   EXPECT_EQ(NULL, socket);
 730   EXPECT_EQ(kFakeFlowId, flowid);
 731   EXPECT_EQ(0, reserved);
 732   return true;
 733 }
 734
 735 DWORD g_expected_dscp;
 736
 737 BOOL WINAPI FakeQOSSetFlow(HANDLE handle,
 738                            QOS_FLOWID flow_id,
 739                            QOS_SET_FLOW op,
 740                            ULONG size,
 741                            PVOID data,
 742                            DWORD reserved,
 743                            LPOVERLAPPED overlapped) {
 744   EXPECT_EQ(kFakeHandle, handle);
 745   EXPECT_EQ(QOSSetOutgoingDSCPValue, op);
 746   EXPECT_EQ(sizeof(DWORD), size);
 747   EXPECT_EQ(g_expected_dscp, *reinterpret_cast<DWORD*>(data));
 748   EXPECT_EQ(kFakeFlowId, flow_id);
 749   EXPECT_EQ(0, reserved);
 750   EXPECT_EQ(NULL, overlapped);
 751   return true;
 752 }
 753
 754 }  // namespace
 755
 756 // Mock out the Qwave functions and make sure they are
 757 // called correctly. Must be in net namespace for friendship
 758 // reasons.
 759 TEST_F(UDPSocketTest, SetDSCPFake) {
 760   // Setup the server to listen.
 761   IPEndPoint bind_address;
 762   // We need a real IP, but we won't actually send anything to it.
 763   CreateUDPAddress("8.8.8.8", 9999, &bind_address);
 764   UDPSocket client(DatagramSocket::DEFAULT_BIND,
 765                    RandIntCallback(),
 766                    NULL,
 767                    NetLog::Source());
 768   int rv = client.SetDiffServCodePoint(DSCP_AF41);
 769   EXPECT_EQ(ERR_SOCKET_NOT_CONNECTED, rv);
 770
 771   rv = client.Open(bind_address.GetFamily());
 772   EXPECT_EQ(OK, rv);
 773
 774   rv = client.Connect(bind_address);
 775   EXPECT_EQ(OK, rv);
 776
 777   QwaveAPI& qos(QwaveAPI::Get());
 778   qos.create_handle_func_ = FakeQOSCreateHandleFAIL;
 779   qos.close_handle_func_ = FakeQOSCloseHandle;
 780   qos.add_socket_to_flow_func_ = FakeQOSAddSocketToFlow;
 781   qos.remove_socket_from_flow_func_ = FakeQOSRemoveSocketFromFlow;
 782   qos.set_flow_func_ = FakeQOSSetFlow;
 783   qos.qwave_supported_ = true;
 784
 785   EXPECT_EQ(OK, client.SetDiffServCodePoint(DSCP_NO_CHANGE));
 786   EXPECT_EQ(ERROR_NOT_SUPPORTED, client.SetDiffServCodePoint(DSCP_AF41));
 787   qos.create_handle_func_ = FakeQOSCreateHandle;
 788   g_expected_dscp = DSCP_AF41;
 789   g_expected_traffic_type = QOSTrafficTypeAudioVideo;
 790   EXPECT_EQ(OK, client.SetDiffServCodePoint(DSCP_AF41));
 791   g_expected_dscp = DSCP_DEFAULT;
 792   g_expected_traffic_type = QOSTrafficTypeBestEffort;
 793   EXPECT_EQ(OK, client.SetDiffServCodePoint(DSCP_DEFAULT));
 794   g_expected_dscp = DSCP_CS2;
 795   g_expected_traffic_type = QOSTrafficTypeExcellentEffort;
 796   EXPECT_EQ(OK, client.SetDiffServCodePoint(DSCP_CS2));
 797   g_expected_dscp = DSCP_CS3;
 798   g_expected_traffic_type = QOSTrafficTypeExcellentEffort;
 799   EXPECT_EQ(OK, client.SetDiffServCodePoint(DSCP_NO_CHANGE));
 800   g_expected_dscp = DSCP_DEFAULT;
 801   g_expected_traffic_type = QOSTrafficTypeBestEffort;
 802   EXPECT_EQ(OK, client.SetDiffServCodePoint(DSCP_DEFAULT));
 803   client.Close();
 804 }
 805 #endif
 806
 807 }  // namespace net