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 | |
Jonas Olsson | a4d8737 | 2019-07-05 19:08:33 +0200 | [diff] [blame^] | 11 | #include "media/sctp/sctp_transport.h" |
| 12 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 13 | #include <stdio.h> |
Yves Gerey | 3e70781 | 2018-11-28 16:47:49 +0100 | [diff] [blame] | 14 | #include <string.h> |
Jonas Olsson | a4d8737 | 2019-07-05 19:08:33 +0200 | [diff] [blame^] | 15 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 16 | #include <memory> |
| 17 | #include <string> |
| 18 | #include <vector> |
| 19 | |
Steve Anton | 2c9ebef | 2019-01-28 17:27:58 -0800 | [diff] [blame] | 20 | #include "absl/algorithm/container.h" |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 21 | #include "p2p/base/fake_dtls_transport.h" |
| 22 | #include "rtc_base/copy_on_write_buffer.h" |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 23 | #include "rtc_base/gunit.h" |
Yves Gerey | 3e70781 | 2018-11-28 16:47:49 +0100 | [diff] [blame] | 24 | #include "rtc_base/logging.h" |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 25 | #include "rtc_base/message_queue.h" |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 26 | #include "rtc_base/thread.h" |
Yves Gerey | 3e70781 | 2018-11-28 16:47:49 +0100 | [diff] [blame] | 27 | #include "test/gtest.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; |
Yves Gerey | 665174f | 2018-06-19 15:03:05 +0200 | [diff] [blame] | 34 | } // namespace |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 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 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 70 | class SctpTransportObserver : public sigslot::has_slots<> { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 71 | public: |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 72 | explicit SctpTransportObserver(SctpTransport* transport) { |
| 73 | transport->SignalClosingProcedureComplete.connect( |
| 74 | this, &SctpTransportObserver::OnClosingProcedureComplete); |
| 75 | transport->SignalReadyToSendData.connect( |
| 76 | this, &SctpTransportObserver::OnReadyToSend); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 77 | } |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 78 | |
| 79 | int StreamCloseCount(int stream) { |
Steve Anton | 2c9ebef | 2019-01-28 17:27:58 -0800 | [diff] [blame] | 80 | return absl::c_count(closed_streams_, stream); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | bool WasStreamClosed(int stream) { |
Steve Anton | 2c9ebef | 2019-01-28 17:27:58 -0800 | [diff] [blame] | 84 | return absl::c_linear_search(closed_streams_, stream); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 85 | } |
| 86 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 87 | bool ReadyToSend() { return ready_to_send_; } |
| 88 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 89 | private: |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 90 | void OnClosingProcedureComplete(int stream) { |
| 91 | closed_streams_.push_back(stream); |
| 92 | } |
| 93 | void OnReadyToSend() { ready_to_send_ = true; } |
| 94 | |
| 95 | std::vector<int> closed_streams_; |
| 96 | bool ready_to_send_ = false; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 97 | }; |
| 98 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 99 | // Helper class used to immediately attempt to reopen a stream as soon as it's |
| 100 | // been closed. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 101 | class SignalTransportClosedReopener : public sigslot::has_slots<> { |
| 102 | public: |
| 103 | SignalTransportClosedReopener(SctpTransport* transport, SctpTransport* peer) |
| 104 | : transport_(transport), peer_(peer) {} |
| 105 | |
Steve Anton | 2c9ebef | 2019-01-28 17:27:58 -0800 | [diff] [blame] | 106 | int StreamCloseCount(int stream) { return absl::c_count(streams_, stream); } |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 107 | |
| 108 | private: |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 109 | void OnStreamClosed(int stream) { |
| 110 | transport_->OpenStream(stream); |
| 111 | peer_->OpenStream(stream); |
| 112 | streams_.push_back(stream); |
| 113 | } |
| 114 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 115 | SctpTransport* transport_; |
| 116 | SctpTransport* peer_; |
| 117 | std::vector<int> streams_; |
| 118 | }; |
| 119 | |
| 120 | // SCTP Data Engine testing framework. |
Mirko Bonadei | 6a489f2 | 2019-04-09 15:11:12 +0200 | [diff] [blame] | 121 | class SctpTransportTest : public ::testing::Test, public sigslot::has_slots<> { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 122 | protected: |
| 123 | // usrsctp uses the NSS random number generator on non-Android platforms, |
| 124 | // so we need to initialize SSL. |
Mirko Bonadei | 71061bc | 2019-06-04 09:01:51 +0200 | [diff] [blame] | 125 | static void SetUpTestSuite() {} |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 126 | |
| 127 | void SetupConnectedTransportsWithTwoStreams() { |
jbauch | 46d2457 | 2017-03-10 16:20:04 -0800 | [diff] [blame] | 128 | SetupConnectedTransportsWithTwoStreams(kTransport1Port, kTransport2Port); |
| 129 | } |
| 130 | |
| 131 | void SetupConnectedTransportsWithTwoStreams(int port1, int port2) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 132 | fake_dtls1_.reset(new FakeDtlsTransport("fake dtls 1", 0)); |
| 133 | fake_dtls2_.reset(new FakeDtlsTransport("fake dtls 2", 0)); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 134 | recv1_.reset(new SctpFakeDataReceiver()); |
| 135 | recv2_.reset(new SctpFakeDataReceiver()); |
| 136 | transport1_.reset(CreateTransport(fake_dtls1_.get(), recv1_.get())); |
| 137 | transport1_->set_debug_name_for_testing("transport1"); |
| 138 | transport1_->SignalReadyToSendData.connect( |
| 139 | this, &SctpTransportTest::OnChan1ReadyToSend); |
| 140 | transport2_.reset(CreateTransport(fake_dtls2_.get(), recv2_.get())); |
| 141 | transport2_->set_debug_name_for_testing("transport2"); |
| 142 | transport2_->SignalReadyToSendData.connect( |
| 143 | this, &SctpTransportTest::OnChan2ReadyToSend); |
| 144 | // Setup two connected transports ready to send and receive. |
| 145 | bool asymmetric = false; |
| 146 | fake_dtls1_->SetDestination(fake_dtls2_.get(), asymmetric); |
| 147 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 148 | RTC_LOG(LS_VERBOSE) << "Transport setup ----------------------------- "; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 149 | AddStream(1); |
| 150 | AddStream(2); |
| 151 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 152 | RTC_LOG(LS_VERBOSE) |
| 153 | << "Connect the transports -----------------------------"; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 154 | // Both transports need to have started (with matching ports) for an |
| 155 | // association to be formed. |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 156 | transport1_->Start(port1, port2, kSctpSendBufferSize); |
| 157 | transport2_->Start(port2, port1, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | bool AddStream(int sid) { |
| 161 | bool ret = true; |
| 162 | ret = ret && transport1_->OpenStream(sid); |
| 163 | ret = ret && transport2_->OpenStream(sid); |
| 164 | return ret; |
| 165 | } |
| 166 | |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 167 | SctpTransport* CreateTransport(FakeDtlsTransport* fake_dtls, |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 168 | SctpFakeDataReceiver* recv) { |
| 169 | SctpTransport* transport = |
| 170 | new SctpTransport(rtc::Thread::Current(), fake_dtls); |
| 171 | // When data is received, pass it to the SctpFakeDataReceiver. |
| 172 | transport->SignalDataReceived.connect( |
| 173 | recv, &SctpFakeDataReceiver::OnDataReceived); |
| 174 | return transport; |
| 175 | } |
| 176 | |
| 177 | bool SendData(SctpTransport* chan, |
| 178 | int sid, |
| 179 | const std::string& msg, |
| 180 | SendDataResult* result) { |
| 181 | SendDataParams params; |
| 182 | params.sid = sid; |
| 183 | |
| 184 | return chan->SendData(params, rtc::CopyOnWriteBuffer(&msg[0], msg.length()), |
| 185 | result); |
| 186 | } |
| 187 | |
| 188 | bool ReceivedData(const SctpFakeDataReceiver* recv, |
| 189 | int sid, |
| 190 | const std::string& msg) { |
| 191 | return (recv->received() && recv->last_params().sid == sid && |
| 192 | recv->last_data() == msg); |
| 193 | } |
| 194 | |
| 195 | bool ProcessMessagesUntilIdle() { |
| 196 | rtc::Thread* thread = rtc::Thread::Current(); |
| 197 | while (!thread->empty()) { |
| 198 | rtc::Message msg; |
| 199 | if (thread->Get(&msg, rtc::Thread::kForever)) { |
| 200 | thread->Dispatch(&msg); |
| 201 | } |
| 202 | } |
| 203 | return !thread->IsQuitting(); |
| 204 | } |
| 205 | |
| 206 | SctpTransport* transport1() { return transport1_.get(); } |
| 207 | SctpTransport* transport2() { return transport2_.get(); } |
| 208 | SctpFakeDataReceiver* receiver1() { return recv1_.get(); } |
| 209 | SctpFakeDataReceiver* receiver2() { return recv2_.get(); } |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 210 | FakeDtlsTransport* fake_dtls1() { return fake_dtls1_.get(); } |
| 211 | FakeDtlsTransport* fake_dtls2() { return fake_dtls2_.get(); } |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 212 | |
| 213 | int transport1_ready_to_send_count() { |
| 214 | return transport1_ready_to_send_count_; |
| 215 | } |
| 216 | int transport2_ready_to_send_count() { |
| 217 | return transport2_ready_to_send_count_; |
| 218 | } |
| 219 | |
| 220 | private: |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 221 | std::unique_ptr<FakeDtlsTransport> fake_dtls1_; |
| 222 | std::unique_ptr<FakeDtlsTransport> fake_dtls2_; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 223 | std::unique_ptr<SctpFakeDataReceiver> recv1_; |
| 224 | std::unique_ptr<SctpFakeDataReceiver> recv2_; |
| 225 | std::unique_ptr<SctpTransport> transport1_; |
| 226 | std::unique_ptr<SctpTransport> transport2_; |
| 227 | |
| 228 | int transport1_ready_to_send_count_ = 0; |
| 229 | int transport2_ready_to_send_count_ = 0; |
| 230 | |
| 231 | void OnChan1ReadyToSend() { ++transport1_ready_to_send_count_; } |
| 232 | void OnChan2ReadyToSend() { ++transport2_ready_to_send_count_; } |
| 233 | }; |
| 234 | |
| 235 | // 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] | 236 | // transport (which is unwritable), and then switches to another transport. A |
| 237 | // common scenario due to how BUNDLE works. |
| 238 | TEST_F(SctpTransportTest, SwitchDtlsTransport) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 239 | FakeDtlsTransport black_hole("black hole", 0); |
| 240 | FakeDtlsTransport fake_dtls1("fake dtls 1", 0); |
| 241 | FakeDtlsTransport fake_dtls2("fake dtls 2", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 242 | SctpFakeDataReceiver recv1; |
| 243 | SctpFakeDataReceiver recv2; |
| 244 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 245 | // Construct transport1 with the "black hole" transport. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 246 | std::unique_ptr<SctpTransport> transport1( |
| 247 | CreateTransport(&black_hole, &recv1)); |
| 248 | std::unique_ptr<SctpTransport> transport2( |
| 249 | CreateTransport(&fake_dtls2, &recv2)); |
| 250 | |
| 251 | // Add a stream. |
| 252 | transport1->OpenStream(1); |
| 253 | transport2->OpenStream(1); |
| 254 | |
| 255 | // Tell them both to start (though transport1_ is connected to black_hole). |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 256 | transport1->Start(kTransport1Port, kTransport2Port, kSctpSendBufferSize); |
| 257 | transport2->Start(kTransport2Port, kTransport1Port, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 258 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 259 | // Switch transport1_ to the normal fake_dtls1_ transport. |
| 260 | transport1->SetDtlsTransport(&fake_dtls1); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 261 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 262 | // Connect the two fake DTLS transports. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 263 | bool asymmetric = false; |
| 264 | fake_dtls1.SetDestination(&fake_dtls2, asymmetric); |
| 265 | |
| 266 | // Make sure we end up able to send data. |
| 267 | SendDataResult result; |
| 268 | ASSERT_TRUE(SendData(transport1.get(), 1, "foo", &result)); |
| 269 | ASSERT_TRUE(SendData(transport2.get(), 1, "bar", &result)); |
| 270 | EXPECT_TRUE_WAIT(ReceivedData(&recv2, 1, "foo"), kDefaultTimeout); |
| 271 | EXPECT_TRUE_WAIT(ReceivedData(&recv1, 1, "bar"), kDefaultTimeout); |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 272 | |
| 273 | // Setting a null DtlsTransport should work. This could happen when an SCTP |
| 274 | // data section is rejected. |
| 275 | transport1->SetDtlsTransport(nullptr); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | // Calling Start twice shouldn't do anything bad, if with the same parameters. |
| 279 | TEST_F(SctpTransportTest, DuplicateStartCallsIgnored) { |
| 280 | SetupConnectedTransportsWithTwoStreams(); |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 281 | EXPECT_TRUE(transport1()->Start(kTransport1Port, kTransport2Port, |
| 282 | kSctpSendBufferSize)); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 283 | |
| 284 | // Make sure we can still send/recv data. |
| 285 | SendDataResult result; |
| 286 | ASSERT_TRUE(SendData(transport1(), 1, "foo", &result)); |
| 287 | ASSERT_TRUE(SendData(transport2(), 1, "bar", &result)); |
| 288 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "foo"), kDefaultTimeout); |
| 289 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 1, "bar"), kDefaultTimeout); |
| 290 | } |
| 291 | |
| 292 | // Calling Start a second time with a different port should fail. |
| 293 | TEST_F(SctpTransportTest, CallingStartWithDifferentPortFails) { |
| 294 | SetupConnectedTransportsWithTwoStreams(); |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 295 | EXPECT_FALSE(transport1()->Start(kTransport1Port, 1234, kSctpSendBufferSize)); |
| 296 | EXPECT_FALSE(transport1()->Start(1234, kTransport2Port, kSctpSendBufferSize)); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 297 | } |
| 298 | |
| 299 | // A value of -1 for the local/remote port should be treated as the default |
| 300 | // (5000). |
| 301 | TEST_F(SctpTransportTest, NegativeOnePortTreatedAsDefault) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 302 | FakeDtlsTransport fake_dtls1("fake dtls 1", 0); |
| 303 | FakeDtlsTransport fake_dtls2("fake dtls 2", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 304 | SctpFakeDataReceiver recv1; |
| 305 | SctpFakeDataReceiver recv2; |
| 306 | std::unique_ptr<SctpTransport> transport1( |
| 307 | CreateTransport(&fake_dtls1, &recv1)); |
| 308 | std::unique_ptr<SctpTransport> transport2( |
| 309 | CreateTransport(&fake_dtls2, &recv2)); |
| 310 | |
| 311 | // Add a stream. |
| 312 | transport1->OpenStream(1); |
| 313 | transport2->OpenStream(1); |
| 314 | |
| 315 | // Tell them both to start, giving one transport the default port and the |
| 316 | // other transport -1. |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 317 | transport1->Start(kSctpDefaultPort, kSctpDefaultPort, kSctpSendBufferSize); |
| 318 | transport2->Start(-1, -1, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 319 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 320 | // Connect the two fake DTLS transports. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 321 | bool asymmetric = false; |
| 322 | fake_dtls1.SetDestination(&fake_dtls2, asymmetric); |
| 323 | |
| 324 | // Make sure we end up able to send data. |
| 325 | SendDataResult result; |
| 326 | ASSERT_TRUE(SendData(transport1.get(), 1, "foo", &result)); |
| 327 | ASSERT_TRUE(SendData(transport2.get(), 1, "bar", &result)); |
| 328 | EXPECT_TRUE_WAIT(ReceivedData(&recv2, 1, "foo"), kDefaultTimeout); |
| 329 | EXPECT_TRUE_WAIT(ReceivedData(&recv1, 1, "bar"), kDefaultTimeout); |
| 330 | } |
| 331 | |
| 332 | TEST_F(SctpTransportTest, OpenStreamWithAlreadyOpenedStreamFails) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 333 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 334 | SctpFakeDataReceiver recv; |
| 335 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 336 | EXPECT_TRUE(transport->OpenStream(1)); |
| 337 | EXPECT_FALSE(transport->OpenStream(1)); |
| 338 | } |
| 339 | |
| 340 | TEST_F(SctpTransportTest, ResetStreamWithAlreadyResetStreamFails) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 341 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 342 | SctpFakeDataReceiver recv; |
| 343 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 344 | EXPECT_TRUE(transport->OpenStream(1)); |
| 345 | EXPECT_TRUE(transport->ResetStream(1)); |
| 346 | EXPECT_FALSE(transport->ResetStream(1)); |
| 347 | } |
| 348 | |
| 349 | // Test that SignalReadyToSendData is fired after Start has been called and the |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 350 | // DTLS transport is writable. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 351 | TEST_F(SctpTransportTest, SignalReadyToSendDataAfterDtlsWritable) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 352 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 353 | SctpFakeDataReceiver recv; |
| 354 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 355 | SctpTransportObserver observer(transport.get()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 356 | |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 357 | transport->Start(kSctpDefaultPort, kSctpDefaultPort, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 358 | fake_dtls.SetWritable(true); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 359 | EXPECT_TRUE_WAIT(observer.ReadyToSend(), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 360 | } |
| 361 | |
| 362 | // Test that after an SCTP socket's buffer is filled, SignalReadyToSendData |
| 363 | // is fired after it begins to be drained. |
| 364 | TEST_F(SctpTransportTest, SignalReadyToSendDataAfterBlocked) { |
| 365 | SetupConnectedTransportsWithTwoStreams(); |
| 366 | // Wait for initial SCTP association to be formed. |
| 367 | EXPECT_EQ_WAIT(1, transport1_ready_to_send_count(), kDefaultTimeout); |
| 368 | // Make the fake transport unwritable so that messages pile up for the SCTP |
| 369 | // socket. |
| 370 | fake_dtls1()->SetWritable(false); |
| 371 | // Send messages until we get EWOULDBLOCK. |
| 372 | static const int kMaxMessages = 1024; |
| 373 | SendDataParams params; |
| 374 | params.sid = 1; |
| 375 | rtc::CopyOnWriteBuffer buf(1024); |
| 376 | memset(buf.data<uint8_t>(), 0, 1024); |
| 377 | SendDataResult result; |
| 378 | int message_count; |
| 379 | for (message_count = 0; message_count < kMaxMessages; ++message_count) { |
| 380 | if (!transport1()->SendData(params, buf, &result) && result == SDR_BLOCK) { |
| 381 | break; |
| 382 | } |
| 383 | } |
| 384 | ASSERT_NE(kMaxMessages, message_count) |
| 385 | << "Sent max number of messages without getting SDR_BLOCK?"; |
| 386 | // Make sure the ready-to-send count hasn't changed. |
| 387 | EXPECT_EQ(1, transport1_ready_to_send_count()); |
| 388 | // Make the transport writable again and expect a "SignalReadyToSendData" at |
| 389 | // some point. |
| 390 | fake_dtls1()->SetWritable(true); |
| 391 | EXPECT_EQ_WAIT(2, transport1_ready_to_send_count(), kDefaultTimeout); |
| 392 | } |
| 393 | |
| 394 | TEST_F(SctpTransportTest, SendData) { |
| 395 | SetupConnectedTransportsWithTwoStreams(); |
| 396 | |
| 397 | SendDataResult result; |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 398 | RTC_LOG(LS_VERBOSE) |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 399 | << "transport1 sending: 'hello?' -----------------------------"; |
| 400 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 401 | EXPECT_EQ(SDR_SUCCESS, result); |
| 402 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 403 | RTC_LOG(LS_VERBOSE) << "recv2.received=" << receiver2()->received() |
| 404 | << ", recv2.last_params.sid=" |
| 405 | << receiver2()->last_params().sid |
| 406 | << ", recv2.last_params.timestamp=" |
| 407 | << receiver2()->last_params().timestamp |
| 408 | << ", recv2.last_params.seq_num=" |
| 409 | << receiver2()->last_params().seq_num |
| 410 | << ", recv2.last_data=" << receiver2()->last_data(); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 411 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 412 | RTC_LOG(LS_VERBOSE) |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 413 | << "transport2 sending: 'hi transport1' -----------------------------"; |
| 414 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 415 | EXPECT_EQ(SDR_SUCCESS, result); |
| 416 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 417 | kDefaultTimeout); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 418 | RTC_LOG(LS_VERBOSE) << "recv1.received=" << receiver1()->received() |
| 419 | << ", recv1.last_params.sid=" |
| 420 | << receiver1()->last_params().sid |
| 421 | << ", recv1.last_params.timestamp=" |
| 422 | << receiver1()->last_params().timestamp |
| 423 | << ", recv1.last_params.seq_num=" |
| 424 | << receiver1()->last_params().seq_num |
| 425 | << ", recv1.last_data=" << receiver1()->last_data(); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | // Sends a lot of large messages at once and verifies SDR_BLOCK is returned. |
| 429 | TEST_F(SctpTransportTest, SendDataBlocked) { |
| 430 | SetupConnectedTransportsWithTwoStreams(); |
| 431 | |
| 432 | SendDataResult result; |
| 433 | SendDataParams params; |
| 434 | params.sid = 1; |
| 435 | |
| 436 | std::vector<char> buffer(1024 * 64, 0); |
| 437 | |
| 438 | for (size_t i = 0; i < 100; ++i) { |
| 439 | transport1()->SendData( |
| 440 | params, rtc::CopyOnWriteBuffer(&buffer[0], buffer.size()), &result); |
| 441 | if (result == SDR_BLOCK) |
| 442 | break; |
| 443 | } |
| 444 | |
| 445 | EXPECT_EQ(SDR_BLOCK, result); |
| 446 | } |
| 447 | |
| 448 | // Trying to send data for a nonexistent stream should fail. |
| 449 | TEST_F(SctpTransportTest, SendDataWithNonexistentStreamFails) { |
| 450 | SetupConnectedTransportsWithTwoStreams(); |
| 451 | SendDataResult result; |
| 452 | EXPECT_FALSE(SendData(transport2(), 123, "some data", &result)); |
| 453 | EXPECT_EQ(SDR_ERROR, result); |
| 454 | } |
| 455 | |
jbauch | 46d2457 | 2017-03-10 16:20:04 -0800 | [diff] [blame] | 456 | TEST_F(SctpTransportTest, SendDataHighPorts) { |
| 457 | SetupConnectedTransportsWithTwoStreams(32768, 32769); |
| 458 | |
| 459 | SendDataResult result; |
| 460 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 461 | EXPECT_EQ(SDR_SUCCESS, result); |
| 462 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 463 | |
| 464 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 465 | EXPECT_EQ(SDR_SUCCESS, result); |
| 466 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 467 | kDefaultTimeout); |
| 468 | } |
| 469 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 470 | TEST_F(SctpTransportTest, ClosesRemoteStream) { |
| 471 | SetupConnectedTransportsWithTwoStreams(); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 472 | SctpTransportObserver transport1_observer(transport1()); |
| 473 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 474 | |
| 475 | SendDataResult result; |
| 476 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 477 | EXPECT_EQ(SDR_SUCCESS, result); |
| 478 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 479 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 480 | EXPECT_EQ(SDR_SUCCESS, result); |
| 481 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 482 | kDefaultTimeout); |
| 483 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 484 | // Close stream 1 on transport 1. Transport 2 should notify us. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 485 | transport1()->ResetStream(1); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 486 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(1), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | TEST_F(SctpTransportTest, ClosesTwoRemoteStreams) { |
| 490 | SetupConnectedTransportsWithTwoStreams(); |
| 491 | AddStream(3); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 492 | SctpTransportObserver transport1_observer(transport1()); |
| 493 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 494 | |
| 495 | SendDataResult result; |
| 496 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 497 | EXPECT_EQ(SDR_SUCCESS, result); |
| 498 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 499 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 500 | EXPECT_EQ(SDR_SUCCESS, result); |
| 501 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 502 | kDefaultTimeout); |
| 503 | |
| 504 | // Close two streams on one side. |
| 505 | transport2()->ResetStream(2); |
| 506 | transport2()->ResetStream(3); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 507 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(2), kDefaultTimeout); |
| 508 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(3), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 509 | } |
| 510 | |
| 511 | TEST_F(SctpTransportTest, ClosesStreamsOnBothSides) { |
| 512 | SetupConnectedTransportsWithTwoStreams(); |
| 513 | AddStream(3); |
| 514 | AddStream(4); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 515 | SctpTransportObserver transport1_observer(transport1()); |
| 516 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 517 | |
| 518 | SendDataResult result; |
| 519 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 520 | EXPECT_EQ(SDR_SUCCESS, result); |
| 521 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 522 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 523 | EXPECT_EQ(SDR_SUCCESS, result); |
| 524 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 525 | kDefaultTimeout); |
| 526 | |
| 527 | // Close one stream on transport1(), while closing three streams on |
| 528 | // transport2(). They will conflict (only one side can close anything at a |
| 529 | // time, apparently). Test the resolution of the conflict. |
| 530 | transport1()->ResetStream(1); |
| 531 | |
| 532 | transport2()->ResetStream(2); |
| 533 | transport2()->ResetStream(3); |
| 534 | transport2()->ResetStream(4); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 535 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(1), kDefaultTimeout); |
| 536 | EXPECT_TRUE_WAIT(transport1_observer.WasStreamClosed(2), kDefaultTimeout); |
| 537 | EXPECT_TRUE_WAIT(transport1_observer.WasStreamClosed(3), kDefaultTimeout); |
| 538 | EXPECT_TRUE_WAIT(transport1_observer.WasStreamClosed(4), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 539 | } |
| 540 | |
| 541 | TEST_F(SctpTransportTest, RefusesHighNumberedTransports) { |
| 542 | SetupConnectedTransportsWithTwoStreams(); |
| 543 | EXPECT_TRUE(AddStream(kMaxSctpSid)); |
| 544 | EXPECT_FALSE(AddStream(kMaxSctpSid + 1)); |
| 545 | } |
| 546 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 547 | TEST_F(SctpTransportTest, ReusesAStream) { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 548 | // Shut down transport 1, then open it up again for reuse. |
| 549 | SetupConnectedTransportsWithTwoStreams(); |
| 550 | SendDataResult result; |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 551 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 552 | |
| 553 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 554 | EXPECT_EQ(SDR_SUCCESS, result); |
| 555 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 556 | |
| 557 | transport1()->ResetStream(1); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 558 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(1), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 559 | // Transport 1 is gone now. |
| 560 | |
| 561 | // Create a new transport 1. |
| 562 | AddStream(1); |
| 563 | ASSERT_TRUE(SendData(transport1(), 1, "hi?", &result)); |
| 564 | EXPECT_EQ(SDR_SUCCESS, result); |
| 565 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hi?"), kDefaultTimeout); |
| 566 | transport1()->ResetStream(1); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 567 | EXPECT_EQ_WAIT(2, transport2_observer.StreamCloseCount(1), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 568 | } |
| 569 | |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 570 | TEST_F(SctpTransportTest, RejectsTooLargeMessageSize) { |
| 571 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
| 572 | SctpFakeDataReceiver recv; |
| 573 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 574 | |
| 575 | EXPECT_FALSE(transport->Start(kSctpDefaultPort, kSctpDefaultPort, |
| 576 | kSctpSendBufferSize + 1)); |
| 577 | } |
| 578 | |
| 579 | TEST_F(SctpTransportTest, RejectsTooSmallMessageSize) { |
| 580 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
| 581 | SctpFakeDataReceiver recv; |
| 582 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 583 | |
| 584 | EXPECT_FALSE(transport->Start(kSctpDefaultPort, kSctpDefaultPort, 0)); |
| 585 | } |
| 586 | |
| 587 | TEST_F(SctpTransportTest, RejectsSendTooLargeMessages) { |
| 588 | SetupConnectedTransportsWithTwoStreams(); |
| 589 | // Use "Start" to reduce the max message size |
| 590 | transport1()->Start(kTransport1Port, kTransport2Port, 10); |
| 591 | EXPECT_EQ(10, transport1()->max_message_size()); |
| 592 | const char eleven_characters[] = "12345678901"; |
| 593 | SendDataResult result; |
| 594 | EXPECT_FALSE(SendData(transport1(), 1, eleven_characters, &result)); |
| 595 | } |
| 596 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 597 | } // namespace cricket |