deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #include <errno.h> |
| 12 | #include <stdarg.h> |
| 13 | #include <stdio.h> |
| 14 | |
| 15 | #include <memory> |
| 16 | #include <string> |
| 17 | #include <vector> |
| 18 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 19 | #include "media/sctp/sctptransport.h" |
| 20 | #include "p2p/base/fakedtlstransport.h" |
| 21 | #include "rtc_base/bind.h" |
| 22 | #include "rtc_base/copyonwritebuffer.h" |
| 23 | #include "rtc_base/criticalsection.h" |
| 24 | #include "rtc_base/gunit.h" |
| 25 | #include "rtc_base/helpers.h" |
| 26 | #include "rtc_base/ssladapter.h" |
| 27 | #include "rtc_base/thread.h" |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 28 | |
| 29 | namespace { |
| 30 | static const int kDefaultTimeout = 10000; // 10 seconds. |
| 31 | // Use ports other than the default 5000 for testing. |
| 32 | static const int kTransport1Port = 5001; |
| 33 | static const int kTransport2Port = 5002; |
| 34 | } |
| 35 | |
| 36 | namespace cricket { |
| 37 | |
| 38 | // This is essentially a buffer to hold recieved data. It stores only the last |
| 39 | // received data. Calling OnDataReceived twice overwrites old data with the |
| 40 | // newer one. |
| 41 | // TODO(ldixon): Implement constraints, and allow new data to be added to old |
| 42 | // instead of replacing it. |
| 43 | class SctpFakeDataReceiver : public sigslot::has_slots<> { |
| 44 | public: |
| 45 | SctpFakeDataReceiver() : received_(false) {} |
| 46 | |
| 47 | void Clear() { |
| 48 | received_ = false; |
| 49 | last_data_ = ""; |
| 50 | last_params_ = ReceiveDataParams(); |
| 51 | } |
| 52 | |
deadbeef | 8d517c4 | 2017-02-19 14:12:24 -0800 | [diff] [blame] | 53 | void OnDataReceived(const ReceiveDataParams& params, |
| 54 | const rtc::CopyOnWriteBuffer& data) { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 55 | received_ = true; |
| 56 | last_data_ = std::string(data.data<char>(), data.size()); |
| 57 | last_params_ = params; |
| 58 | } |
| 59 | |
| 60 | bool received() const { return received_; } |
| 61 | std::string last_data() const { return last_data_; } |
| 62 | ReceiveDataParams last_params() const { return last_params_; } |
| 63 | |
| 64 | private: |
| 65 | bool received_; |
| 66 | std::string last_data_; |
| 67 | ReceiveDataParams last_params_; |
| 68 | }; |
| 69 | |
| 70 | class SignalReadyToSendObserver : public sigslot::has_slots<> { |
| 71 | public: |
| 72 | SignalReadyToSendObserver() : signaled_(false) {} |
| 73 | |
| 74 | void OnSignaled() { signaled_ = true; } |
| 75 | |
| 76 | bool IsSignaled() { return signaled_; } |
| 77 | |
| 78 | private: |
| 79 | bool signaled_; |
| 80 | }; |
| 81 | |
| 82 | class SignalTransportClosedObserver : public sigslot::has_slots<> { |
| 83 | public: |
| 84 | SignalTransportClosedObserver() {} |
| 85 | void BindSelf(SctpTransport* transport) { |
| 86 | transport->SignalStreamClosedRemotely.connect( |
| 87 | this, &SignalTransportClosedObserver::OnStreamClosed); |
| 88 | } |
| 89 | void OnStreamClosed(int stream) { streams_.push_back(stream); } |
| 90 | |
| 91 | int StreamCloseCount(int stream) { |
| 92 | return std::count(streams_.begin(), streams_.end(), stream); |
| 93 | } |
| 94 | |
| 95 | bool WasStreamClosed(int stream) { |
| 96 | return std::find(streams_.begin(), streams_.end(), stream) != |
| 97 | streams_.end(); |
| 98 | } |
| 99 | |
| 100 | private: |
| 101 | std::vector<int> streams_; |
| 102 | }; |
| 103 | |
| 104 | class SignalTransportClosedReopener : public sigslot::has_slots<> { |
| 105 | public: |
| 106 | SignalTransportClosedReopener(SctpTransport* transport, SctpTransport* peer) |
| 107 | : transport_(transport), peer_(peer) {} |
| 108 | |
| 109 | void OnStreamClosed(int stream) { |
| 110 | transport_->OpenStream(stream); |
| 111 | peer_->OpenStream(stream); |
| 112 | streams_.push_back(stream); |
| 113 | } |
| 114 | |
| 115 | int StreamCloseCount(int stream) { |
| 116 | return std::count(streams_.begin(), streams_.end(), stream); |
| 117 | } |
| 118 | |
| 119 | private: |
| 120 | SctpTransport* transport_; |
| 121 | SctpTransport* peer_; |
| 122 | std::vector<int> streams_; |
| 123 | }; |
| 124 | |
| 125 | // SCTP Data Engine testing framework. |
| 126 | class SctpTransportTest : public testing::Test, public sigslot::has_slots<> { |
| 127 | protected: |
| 128 | // usrsctp uses the NSS random number generator on non-Android platforms, |
| 129 | // so we need to initialize SSL. |
| 130 | static void SetUpTestCase() {} |
| 131 | |
| 132 | void SetupConnectedTransportsWithTwoStreams() { |
jbauch | 46d2457 | 2017-03-10 16:20:04 -0800 | [diff] [blame] | 133 | SetupConnectedTransportsWithTwoStreams(kTransport1Port, kTransport2Port); |
| 134 | } |
| 135 | |
| 136 | void SetupConnectedTransportsWithTwoStreams(int port1, int port2) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 137 | fake_dtls1_.reset(new FakeDtlsTransport("fake dtls 1", 0)); |
| 138 | fake_dtls2_.reset(new FakeDtlsTransport("fake dtls 2", 0)); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 139 | recv1_.reset(new SctpFakeDataReceiver()); |
| 140 | recv2_.reset(new SctpFakeDataReceiver()); |
| 141 | transport1_.reset(CreateTransport(fake_dtls1_.get(), recv1_.get())); |
| 142 | transport1_->set_debug_name_for_testing("transport1"); |
| 143 | transport1_->SignalReadyToSendData.connect( |
| 144 | this, &SctpTransportTest::OnChan1ReadyToSend); |
| 145 | transport2_.reset(CreateTransport(fake_dtls2_.get(), recv2_.get())); |
| 146 | transport2_->set_debug_name_for_testing("transport2"); |
| 147 | transport2_->SignalReadyToSendData.connect( |
| 148 | this, &SctpTransportTest::OnChan2ReadyToSend); |
| 149 | // Setup two connected transports ready to send and receive. |
| 150 | bool asymmetric = false; |
| 151 | fake_dtls1_->SetDestination(fake_dtls2_.get(), asymmetric); |
| 152 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 153 | RTC_LOG(LS_VERBOSE) << "Transport setup ----------------------------- "; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 154 | AddStream(1); |
| 155 | AddStream(2); |
| 156 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 157 | RTC_LOG(LS_VERBOSE) |
| 158 | << "Connect the transports -----------------------------"; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 159 | // Both transports need to have started (with matching ports) for an |
| 160 | // association to be formed. |
jbauch | 46d2457 | 2017-03-10 16:20:04 -0800 | [diff] [blame] | 161 | transport1_->Start(port1, port2); |
| 162 | transport2_->Start(port2, port1); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | bool AddStream(int sid) { |
| 166 | bool ret = true; |
| 167 | ret = ret && transport1_->OpenStream(sid); |
| 168 | ret = ret && transport2_->OpenStream(sid); |
| 169 | return ret; |
| 170 | } |
| 171 | |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 172 | SctpTransport* CreateTransport(FakeDtlsTransport* fake_dtls, |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 173 | SctpFakeDataReceiver* recv) { |
| 174 | SctpTransport* transport = |
| 175 | new SctpTransport(rtc::Thread::Current(), fake_dtls); |
| 176 | // When data is received, pass it to the SctpFakeDataReceiver. |
| 177 | transport->SignalDataReceived.connect( |
| 178 | recv, &SctpFakeDataReceiver::OnDataReceived); |
| 179 | return transport; |
| 180 | } |
| 181 | |
| 182 | bool SendData(SctpTransport* chan, |
| 183 | int sid, |
| 184 | const std::string& msg, |
| 185 | SendDataResult* result) { |
| 186 | SendDataParams params; |
| 187 | params.sid = sid; |
| 188 | |
| 189 | return chan->SendData(params, rtc::CopyOnWriteBuffer(&msg[0], msg.length()), |
| 190 | result); |
| 191 | } |
| 192 | |
| 193 | bool ReceivedData(const SctpFakeDataReceiver* recv, |
| 194 | int sid, |
| 195 | const std::string& msg) { |
| 196 | return (recv->received() && recv->last_params().sid == sid && |
| 197 | recv->last_data() == msg); |
| 198 | } |
| 199 | |
| 200 | bool ProcessMessagesUntilIdle() { |
| 201 | rtc::Thread* thread = rtc::Thread::Current(); |
| 202 | while (!thread->empty()) { |
| 203 | rtc::Message msg; |
| 204 | if (thread->Get(&msg, rtc::Thread::kForever)) { |
| 205 | thread->Dispatch(&msg); |
| 206 | } |
| 207 | } |
| 208 | return !thread->IsQuitting(); |
| 209 | } |
| 210 | |
| 211 | SctpTransport* transport1() { return transport1_.get(); } |
| 212 | SctpTransport* transport2() { return transport2_.get(); } |
| 213 | SctpFakeDataReceiver* receiver1() { return recv1_.get(); } |
| 214 | SctpFakeDataReceiver* receiver2() { return recv2_.get(); } |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 215 | FakeDtlsTransport* fake_dtls1() { return fake_dtls1_.get(); } |
| 216 | FakeDtlsTransport* fake_dtls2() { return fake_dtls2_.get(); } |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 217 | |
| 218 | int transport1_ready_to_send_count() { |
| 219 | return transport1_ready_to_send_count_; |
| 220 | } |
| 221 | int transport2_ready_to_send_count() { |
| 222 | return transport2_ready_to_send_count_; |
| 223 | } |
| 224 | |
| 225 | private: |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 226 | std::unique_ptr<FakeDtlsTransport> fake_dtls1_; |
| 227 | std::unique_ptr<FakeDtlsTransport> fake_dtls2_; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 228 | std::unique_ptr<SctpFakeDataReceiver> recv1_; |
| 229 | std::unique_ptr<SctpFakeDataReceiver> recv2_; |
| 230 | std::unique_ptr<SctpTransport> transport1_; |
| 231 | std::unique_ptr<SctpTransport> transport2_; |
| 232 | |
| 233 | int transport1_ready_to_send_count_ = 0; |
| 234 | int transport2_ready_to_send_count_ = 0; |
| 235 | |
| 236 | void OnChan1ReadyToSend() { ++transport1_ready_to_send_count_; } |
| 237 | void OnChan2ReadyToSend() { ++transport2_ready_to_send_count_; } |
| 238 | }; |
| 239 | |
| 240 | // Test that data can be sent end-to-end when an SCTP transport starts with one |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame^] | 241 | // transport (which is unwritable), and then switches to another transport. A |
| 242 | // common scenario due to how BUNDLE works. |
| 243 | TEST_F(SctpTransportTest, SwitchDtlsTransport) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 244 | FakeDtlsTransport black_hole("black hole", 0); |
| 245 | FakeDtlsTransport fake_dtls1("fake dtls 1", 0); |
| 246 | FakeDtlsTransport fake_dtls2("fake dtls 2", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 247 | SctpFakeDataReceiver recv1; |
| 248 | SctpFakeDataReceiver recv2; |
| 249 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame^] | 250 | // Construct transport1 with the "black hole" transport. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 251 | std::unique_ptr<SctpTransport> transport1( |
| 252 | CreateTransport(&black_hole, &recv1)); |
| 253 | std::unique_ptr<SctpTransport> transport2( |
| 254 | CreateTransport(&fake_dtls2, &recv2)); |
| 255 | |
| 256 | // Add a stream. |
| 257 | transport1->OpenStream(1); |
| 258 | transport2->OpenStream(1); |
| 259 | |
| 260 | // Tell them both to start (though transport1_ is connected to black_hole). |
| 261 | transport1->Start(kTransport1Port, kTransport2Port); |
| 262 | transport2->Start(kTransport2Port, kTransport1Port); |
| 263 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame^] | 264 | // Switch transport1_ to the normal fake_dtls1_ transport. |
| 265 | transport1->SetDtlsTransport(&fake_dtls1); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 266 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame^] | 267 | // Connect the two fake DTLS transports. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 268 | bool asymmetric = false; |
| 269 | fake_dtls1.SetDestination(&fake_dtls2, asymmetric); |
| 270 | |
| 271 | // Make sure we end up able to send data. |
| 272 | SendDataResult result; |
| 273 | ASSERT_TRUE(SendData(transport1.get(), 1, "foo", &result)); |
| 274 | ASSERT_TRUE(SendData(transport2.get(), 1, "bar", &result)); |
| 275 | EXPECT_TRUE_WAIT(ReceivedData(&recv2, 1, "foo"), kDefaultTimeout); |
| 276 | EXPECT_TRUE_WAIT(ReceivedData(&recv1, 1, "bar"), kDefaultTimeout); |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame^] | 277 | |
| 278 | // Setting a null DtlsTransport should work. This could happen when an SCTP |
| 279 | // data section is rejected. |
| 280 | transport1->SetDtlsTransport(nullptr); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | // Calling Start twice shouldn't do anything bad, if with the same parameters. |
| 284 | TEST_F(SctpTransportTest, DuplicateStartCallsIgnored) { |
| 285 | SetupConnectedTransportsWithTwoStreams(); |
| 286 | EXPECT_TRUE(transport1()->Start(kTransport1Port, kTransport2Port)); |
| 287 | |
| 288 | // Make sure we can still send/recv data. |
| 289 | SendDataResult result; |
| 290 | ASSERT_TRUE(SendData(transport1(), 1, "foo", &result)); |
| 291 | ASSERT_TRUE(SendData(transport2(), 1, "bar", &result)); |
| 292 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "foo"), kDefaultTimeout); |
| 293 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 1, "bar"), kDefaultTimeout); |
| 294 | } |
| 295 | |
| 296 | // Calling Start a second time with a different port should fail. |
| 297 | TEST_F(SctpTransportTest, CallingStartWithDifferentPortFails) { |
| 298 | SetupConnectedTransportsWithTwoStreams(); |
| 299 | EXPECT_FALSE(transport1()->Start(kTransport1Port, 1234)); |
| 300 | EXPECT_FALSE(transport1()->Start(1234, kTransport2Port)); |
| 301 | } |
| 302 | |
| 303 | // A value of -1 for the local/remote port should be treated as the default |
| 304 | // (5000). |
| 305 | TEST_F(SctpTransportTest, NegativeOnePortTreatedAsDefault) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 306 | FakeDtlsTransport fake_dtls1("fake dtls 1", 0); |
| 307 | FakeDtlsTransport fake_dtls2("fake dtls 2", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 308 | SctpFakeDataReceiver recv1; |
| 309 | SctpFakeDataReceiver recv2; |
| 310 | std::unique_ptr<SctpTransport> transport1( |
| 311 | CreateTransport(&fake_dtls1, &recv1)); |
| 312 | std::unique_ptr<SctpTransport> transport2( |
| 313 | CreateTransport(&fake_dtls2, &recv2)); |
| 314 | |
| 315 | // Add a stream. |
| 316 | transport1->OpenStream(1); |
| 317 | transport2->OpenStream(1); |
| 318 | |
| 319 | // Tell them both to start, giving one transport the default port and the |
| 320 | // other transport -1. |
| 321 | transport1->Start(kSctpDefaultPort, kSctpDefaultPort); |
| 322 | transport2->Start(-1, -1); |
| 323 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame^] | 324 | // Connect the two fake DTLS transports. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 325 | bool asymmetric = false; |
| 326 | fake_dtls1.SetDestination(&fake_dtls2, asymmetric); |
| 327 | |
| 328 | // Make sure we end up able to send data. |
| 329 | SendDataResult result; |
| 330 | ASSERT_TRUE(SendData(transport1.get(), 1, "foo", &result)); |
| 331 | ASSERT_TRUE(SendData(transport2.get(), 1, "bar", &result)); |
| 332 | EXPECT_TRUE_WAIT(ReceivedData(&recv2, 1, "foo"), kDefaultTimeout); |
| 333 | EXPECT_TRUE_WAIT(ReceivedData(&recv1, 1, "bar"), kDefaultTimeout); |
| 334 | } |
| 335 | |
| 336 | TEST_F(SctpTransportTest, OpenStreamWithAlreadyOpenedStreamFails) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 337 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 338 | SctpFakeDataReceiver recv; |
| 339 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 340 | EXPECT_TRUE(transport->OpenStream(1)); |
| 341 | EXPECT_FALSE(transport->OpenStream(1)); |
| 342 | } |
| 343 | |
| 344 | TEST_F(SctpTransportTest, ResetStreamWithAlreadyResetStreamFails) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 345 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 346 | SctpFakeDataReceiver recv; |
| 347 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 348 | EXPECT_TRUE(transport->OpenStream(1)); |
| 349 | EXPECT_TRUE(transport->ResetStream(1)); |
| 350 | EXPECT_FALSE(transport->ResetStream(1)); |
| 351 | } |
| 352 | |
| 353 | // Test that SignalReadyToSendData is fired after Start has been called and the |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame^] | 354 | // DTLS transport is writable. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 355 | TEST_F(SctpTransportTest, SignalReadyToSendDataAfterDtlsWritable) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 356 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 357 | SctpFakeDataReceiver recv; |
| 358 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 359 | |
| 360 | SignalReadyToSendObserver signal_observer; |
| 361 | transport->SignalReadyToSendData.connect( |
| 362 | &signal_observer, &SignalReadyToSendObserver::OnSignaled); |
| 363 | |
| 364 | transport->Start(kSctpDefaultPort, kSctpDefaultPort); |
| 365 | fake_dtls.SetWritable(true); |
| 366 | EXPECT_TRUE_WAIT(signal_observer.IsSignaled(), kDefaultTimeout); |
| 367 | } |
| 368 | |
| 369 | // Test that after an SCTP socket's buffer is filled, SignalReadyToSendData |
| 370 | // is fired after it begins to be drained. |
| 371 | TEST_F(SctpTransportTest, SignalReadyToSendDataAfterBlocked) { |
| 372 | SetupConnectedTransportsWithTwoStreams(); |
| 373 | // Wait for initial SCTP association to be formed. |
| 374 | EXPECT_EQ_WAIT(1, transport1_ready_to_send_count(), kDefaultTimeout); |
| 375 | // Make the fake transport unwritable so that messages pile up for the SCTP |
| 376 | // socket. |
| 377 | fake_dtls1()->SetWritable(false); |
| 378 | // Send messages until we get EWOULDBLOCK. |
| 379 | static const int kMaxMessages = 1024; |
| 380 | SendDataParams params; |
| 381 | params.sid = 1; |
| 382 | rtc::CopyOnWriteBuffer buf(1024); |
| 383 | memset(buf.data<uint8_t>(), 0, 1024); |
| 384 | SendDataResult result; |
| 385 | int message_count; |
| 386 | for (message_count = 0; message_count < kMaxMessages; ++message_count) { |
| 387 | if (!transport1()->SendData(params, buf, &result) && result == SDR_BLOCK) { |
| 388 | break; |
| 389 | } |
| 390 | } |
| 391 | ASSERT_NE(kMaxMessages, message_count) |
| 392 | << "Sent max number of messages without getting SDR_BLOCK?"; |
| 393 | // Make sure the ready-to-send count hasn't changed. |
| 394 | EXPECT_EQ(1, transport1_ready_to_send_count()); |
| 395 | // Make the transport writable again and expect a "SignalReadyToSendData" at |
| 396 | // some point. |
| 397 | fake_dtls1()->SetWritable(true); |
| 398 | EXPECT_EQ_WAIT(2, transport1_ready_to_send_count(), kDefaultTimeout); |
| 399 | } |
| 400 | |
| 401 | TEST_F(SctpTransportTest, SendData) { |
| 402 | SetupConnectedTransportsWithTwoStreams(); |
| 403 | |
| 404 | SendDataResult result; |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 405 | RTC_LOG(LS_VERBOSE) |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 406 | << "transport1 sending: 'hello?' -----------------------------"; |
| 407 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 408 | EXPECT_EQ(SDR_SUCCESS, result); |
| 409 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 410 | RTC_LOG(LS_VERBOSE) << "recv2.received=" << receiver2()->received() |
| 411 | << ", recv2.last_params.sid=" |
| 412 | << receiver2()->last_params().sid |
| 413 | << ", recv2.last_params.timestamp=" |
| 414 | << receiver2()->last_params().timestamp |
| 415 | << ", recv2.last_params.seq_num=" |
| 416 | << receiver2()->last_params().seq_num |
| 417 | << ", recv2.last_data=" << receiver2()->last_data(); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 418 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 419 | RTC_LOG(LS_VERBOSE) |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 420 | << "transport2 sending: 'hi transport1' -----------------------------"; |
| 421 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 422 | EXPECT_EQ(SDR_SUCCESS, result); |
| 423 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 424 | kDefaultTimeout); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 425 | RTC_LOG(LS_VERBOSE) << "recv1.received=" << receiver1()->received() |
| 426 | << ", recv1.last_params.sid=" |
| 427 | << receiver1()->last_params().sid |
| 428 | << ", recv1.last_params.timestamp=" |
| 429 | << receiver1()->last_params().timestamp |
| 430 | << ", recv1.last_params.seq_num=" |
| 431 | << receiver1()->last_params().seq_num |
| 432 | << ", recv1.last_data=" << receiver1()->last_data(); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 433 | } |
| 434 | |
| 435 | // Sends a lot of large messages at once and verifies SDR_BLOCK is returned. |
| 436 | TEST_F(SctpTransportTest, SendDataBlocked) { |
| 437 | SetupConnectedTransportsWithTwoStreams(); |
| 438 | |
| 439 | SendDataResult result; |
| 440 | SendDataParams params; |
| 441 | params.sid = 1; |
| 442 | |
| 443 | std::vector<char> buffer(1024 * 64, 0); |
| 444 | |
| 445 | for (size_t i = 0; i < 100; ++i) { |
| 446 | transport1()->SendData( |
| 447 | params, rtc::CopyOnWriteBuffer(&buffer[0], buffer.size()), &result); |
| 448 | if (result == SDR_BLOCK) |
| 449 | break; |
| 450 | } |
| 451 | |
| 452 | EXPECT_EQ(SDR_BLOCK, result); |
| 453 | } |
| 454 | |
| 455 | // Trying to send data for a nonexistent stream should fail. |
| 456 | TEST_F(SctpTransportTest, SendDataWithNonexistentStreamFails) { |
| 457 | SetupConnectedTransportsWithTwoStreams(); |
| 458 | SendDataResult result; |
| 459 | EXPECT_FALSE(SendData(transport2(), 123, "some data", &result)); |
| 460 | EXPECT_EQ(SDR_ERROR, result); |
| 461 | } |
| 462 | |
jbauch | 46d2457 | 2017-03-10 16:20:04 -0800 | [diff] [blame] | 463 | TEST_F(SctpTransportTest, SendDataHighPorts) { |
| 464 | SetupConnectedTransportsWithTwoStreams(32768, 32769); |
| 465 | |
| 466 | SendDataResult result; |
| 467 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 468 | EXPECT_EQ(SDR_SUCCESS, result); |
| 469 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 470 | |
| 471 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 472 | EXPECT_EQ(SDR_SUCCESS, result); |
| 473 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 474 | kDefaultTimeout); |
| 475 | } |
| 476 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 477 | TEST_F(SctpTransportTest, ClosesRemoteStream) { |
| 478 | SetupConnectedTransportsWithTwoStreams(); |
| 479 | SignalTransportClosedObserver transport1_sig_receiver, |
| 480 | transport2_sig_receiver; |
| 481 | transport1_sig_receiver.BindSelf(transport1()); |
| 482 | transport2_sig_receiver.BindSelf(transport2()); |
| 483 | |
| 484 | SendDataResult result; |
| 485 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 486 | EXPECT_EQ(SDR_SUCCESS, result); |
| 487 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 488 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 489 | EXPECT_EQ(SDR_SUCCESS, result); |
| 490 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 491 | kDefaultTimeout); |
| 492 | |
| 493 | // Close transport 1. Transport 2 should notify us. |
| 494 | transport1()->ResetStream(1); |
| 495 | EXPECT_TRUE_WAIT(transport2_sig_receiver.WasStreamClosed(1), kDefaultTimeout); |
| 496 | } |
| 497 | |
| 498 | TEST_F(SctpTransportTest, ClosesTwoRemoteStreams) { |
| 499 | SetupConnectedTransportsWithTwoStreams(); |
| 500 | AddStream(3); |
| 501 | SignalTransportClosedObserver transport1_sig_receiver, |
| 502 | transport2_sig_receiver; |
| 503 | transport1_sig_receiver.BindSelf(transport1()); |
| 504 | transport2_sig_receiver.BindSelf(transport2()); |
| 505 | |
| 506 | SendDataResult result; |
| 507 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 508 | EXPECT_EQ(SDR_SUCCESS, result); |
| 509 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 510 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 511 | EXPECT_EQ(SDR_SUCCESS, result); |
| 512 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 513 | kDefaultTimeout); |
| 514 | |
| 515 | // Close two streams on one side. |
| 516 | transport2()->ResetStream(2); |
| 517 | transport2()->ResetStream(3); |
| 518 | EXPECT_TRUE_WAIT(transport1_sig_receiver.WasStreamClosed(2), kDefaultTimeout); |
| 519 | EXPECT_TRUE_WAIT(transport1_sig_receiver.WasStreamClosed(3), kDefaultTimeout); |
| 520 | } |
| 521 | |
| 522 | TEST_F(SctpTransportTest, ClosesStreamsOnBothSides) { |
| 523 | SetupConnectedTransportsWithTwoStreams(); |
| 524 | AddStream(3); |
| 525 | AddStream(4); |
| 526 | SignalTransportClosedObserver transport1_sig_receiver, |
| 527 | transport2_sig_receiver; |
| 528 | transport1_sig_receiver.BindSelf(transport1()); |
| 529 | transport2_sig_receiver.BindSelf(transport2()); |
| 530 | |
| 531 | SendDataResult result; |
| 532 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 533 | EXPECT_EQ(SDR_SUCCESS, result); |
| 534 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 535 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 536 | EXPECT_EQ(SDR_SUCCESS, result); |
| 537 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 538 | kDefaultTimeout); |
| 539 | |
| 540 | // Close one stream on transport1(), while closing three streams on |
| 541 | // transport2(). They will conflict (only one side can close anything at a |
| 542 | // time, apparently). Test the resolution of the conflict. |
| 543 | transport1()->ResetStream(1); |
| 544 | |
| 545 | transport2()->ResetStream(2); |
| 546 | transport2()->ResetStream(3); |
| 547 | transport2()->ResetStream(4); |
| 548 | EXPECT_TRUE_WAIT(transport2_sig_receiver.WasStreamClosed(1), kDefaultTimeout); |
| 549 | EXPECT_TRUE_WAIT(transport1_sig_receiver.WasStreamClosed(2), kDefaultTimeout); |
| 550 | EXPECT_TRUE_WAIT(transport1_sig_receiver.WasStreamClosed(3), kDefaultTimeout); |
| 551 | EXPECT_TRUE_WAIT(transport1_sig_receiver.WasStreamClosed(4), kDefaultTimeout); |
| 552 | } |
| 553 | |
| 554 | TEST_F(SctpTransportTest, RefusesHighNumberedTransports) { |
| 555 | SetupConnectedTransportsWithTwoStreams(); |
| 556 | EXPECT_TRUE(AddStream(kMaxSctpSid)); |
| 557 | EXPECT_FALSE(AddStream(kMaxSctpSid + 1)); |
| 558 | } |
| 559 | |
| 560 | // Flaky, see webrtc:4453. |
| 561 | TEST_F(SctpTransportTest, DISABLED_ReusesAStream) { |
| 562 | // Shut down transport 1, then open it up again for reuse. |
| 563 | SetupConnectedTransportsWithTwoStreams(); |
| 564 | SendDataResult result; |
| 565 | SignalTransportClosedObserver transport2_sig_receiver; |
| 566 | transport2_sig_receiver.BindSelf(transport2()); |
| 567 | |
| 568 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 569 | EXPECT_EQ(SDR_SUCCESS, result); |
| 570 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 571 | |
| 572 | transport1()->ResetStream(1); |
| 573 | EXPECT_TRUE_WAIT(transport2_sig_receiver.WasStreamClosed(1), kDefaultTimeout); |
| 574 | // Transport 1 is gone now. |
| 575 | |
| 576 | // Create a new transport 1. |
| 577 | AddStream(1); |
| 578 | ASSERT_TRUE(SendData(transport1(), 1, "hi?", &result)); |
| 579 | EXPECT_EQ(SDR_SUCCESS, result); |
| 580 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hi?"), kDefaultTimeout); |
| 581 | transport1()->ResetStream(1); |
| 582 | EXPECT_TRUE_WAIT(transport2_sig_receiver.StreamCloseCount(1) == 2, |
| 583 | kDefaultTimeout); |
| 584 | } |
| 585 | |
| 586 | } // namespace cricket |