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" |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 21 | #include "media/sctp/sctp_transport_internal.h" |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 22 | #include "p2p/base/fake_dtls_transport.h" |
| 23 | #include "rtc_base/copy_on_write_buffer.h" |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 24 | #include "rtc_base/gunit.h" |
Yves Gerey | 3e70781 | 2018-11-28 16:47:49 +0100 | [diff] [blame] | 25 | #include "rtc_base/logging.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(); |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 51 | num_messages_received_ = 0; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 52 | } |
| 53 | |
deadbeef | 8d517c4 | 2017-02-19 14:12:24 -0800 | [diff] [blame] | 54 | void OnDataReceived(const ReceiveDataParams& params, |
| 55 | const rtc::CopyOnWriteBuffer& data) { |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 56 | num_messages_received_++; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 57 | received_ = true; |
| 58 | last_data_ = std::string(data.data<char>(), data.size()); |
| 59 | last_params_ = params; |
| 60 | } |
| 61 | |
| 62 | bool received() const { return received_; } |
| 63 | std::string last_data() const { return last_data_; } |
| 64 | ReceiveDataParams last_params() const { return last_params_; } |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 65 | size_t num_messages_received() const { return num_messages_received_; } |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 66 | |
| 67 | private: |
| 68 | bool received_; |
| 69 | std::string last_data_; |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 70 | size_t num_messages_received_ = 0; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 71 | ReceiveDataParams last_params_; |
| 72 | }; |
| 73 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 74 | class SctpTransportObserver : public sigslot::has_slots<> { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 75 | public: |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 76 | explicit SctpTransportObserver(SctpTransport* transport) { |
| 77 | transport->SignalClosingProcedureComplete.connect( |
| 78 | this, &SctpTransportObserver::OnClosingProcedureComplete); |
| 79 | transport->SignalReadyToSendData.connect( |
| 80 | this, &SctpTransportObserver::OnReadyToSend); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 81 | } |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 82 | |
| 83 | int StreamCloseCount(int stream) { |
Steve Anton | 2c9ebef | 2019-01-28 17:27:58 -0800 | [diff] [blame] | 84 | return absl::c_count(closed_streams_, stream); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | bool WasStreamClosed(int stream) { |
Steve Anton | 2c9ebef | 2019-01-28 17:27:58 -0800 | [diff] [blame] | 88 | return absl::c_linear_search(closed_streams_, stream); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 89 | } |
| 90 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 91 | bool ReadyToSend() { return ready_to_send_; } |
| 92 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 93 | private: |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 94 | void OnClosingProcedureComplete(int stream) { |
| 95 | closed_streams_.push_back(stream); |
| 96 | } |
| 97 | void OnReadyToSend() { ready_to_send_ = true; } |
| 98 | |
| 99 | std::vector<int> closed_streams_; |
| 100 | bool ready_to_send_ = false; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 101 | }; |
| 102 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 103 | // Helper class used to immediately attempt to reopen a stream as soon as it's |
| 104 | // been closed. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 105 | class SignalTransportClosedReopener : public sigslot::has_slots<> { |
| 106 | public: |
| 107 | SignalTransportClosedReopener(SctpTransport* transport, SctpTransport* peer) |
| 108 | : transport_(transport), peer_(peer) {} |
| 109 | |
Steve Anton | 2c9ebef | 2019-01-28 17:27:58 -0800 | [diff] [blame] | 110 | int StreamCloseCount(int stream) { return absl::c_count(streams_, stream); } |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 111 | |
| 112 | private: |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 113 | void OnStreamClosed(int stream) { |
| 114 | transport_->OpenStream(stream); |
| 115 | peer_->OpenStream(stream); |
| 116 | streams_.push_back(stream); |
| 117 | } |
| 118 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 119 | SctpTransport* transport_; |
| 120 | SctpTransport* peer_; |
| 121 | std::vector<int> streams_; |
| 122 | }; |
| 123 | |
| 124 | // SCTP Data Engine testing framework. |
Mirko Bonadei | 6a489f2 | 2019-04-09 15:11:12 +0200 | [diff] [blame] | 125 | class SctpTransportTest : public ::testing::Test, public sigslot::has_slots<> { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 126 | protected: |
| 127 | // usrsctp uses the NSS random number generator on non-Android platforms, |
| 128 | // so we need to initialize SSL. |
Mirko Bonadei | 71061bc | 2019-06-04 09:01:51 +0200 | [diff] [blame] | 129 | static void SetUpTestSuite() {} |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 130 | |
| 131 | void SetupConnectedTransportsWithTwoStreams() { |
jbauch | 46d2457 | 2017-03-10 16:20:04 -0800 | [diff] [blame] | 132 | SetupConnectedTransportsWithTwoStreams(kTransport1Port, kTransport2Port); |
| 133 | } |
| 134 | |
| 135 | void SetupConnectedTransportsWithTwoStreams(int port1, int port2) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 136 | fake_dtls1_.reset(new FakeDtlsTransport("fake dtls 1", 0)); |
| 137 | fake_dtls2_.reset(new FakeDtlsTransport("fake dtls 2", 0)); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 138 | recv1_.reset(new SctpFakeDataReceiver()); |
| 139 | recv2_.reset(new SctpFakeDataReceiver()); |
| 140 | transport1_.reset(CreateTransport(fake_dtls1_.get(), recv1_.get())); |
| 141 | transport1_->set_debug_name_for_testing("transport1"); |
| 142 | transport1_->SignalReadyToSendData.connect( |
| 143 | this, &SctpTransportTest::OnChan1ReadyToSend); |
| 144 | transport2_.reset(CreateTransport(fake_dtls2_.get(), recv2_.get())); |
| 145 | transport2_->set_debug_name_for_testing("transport2"); |
| 146 | transport2_->SignalReadyToSendData.connect( |
| 147 | this, &SctpTransportTest::OnChan2ReadyToSend); |
| 148 | // Setup two connected transports ready to send and receive. |
| 149 | bool asymmetric = false; |
| 150 | fake_dtls1_->SetDestination(fake_dtls2_.get(), asymmetric); |
| 151 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 152 | RTC_LOG(LS_VERBOSE) << "Transport setup ----------------------------- "; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 153 | AddStream(1); |
| 154 | AddStream(2); |
| 155 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 156 | RTC_LOG(LS_VERBOSE) |
| 157 | << "Connect the transports -----------------------------"; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 158 | // Both transports need to have started (with matching ports) for an |
| 159 | // association to be formed. |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 160 | transport1_->Start(port1, port2, kSctpSendBufferSize); |
| 161 | transport2_->Start(port2, port1, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 162 | } |
| 163 | |
| 164 | bool AddStream(int sid) { |
| 165 | bool ret = true; |
| 166 | ret = ret && transport1_->OpenStream(sid); |
| 167 | ret = ret && transport2_->OpenStream(sid); |
| 168 | return ret; |
| 169 | } |
| 170 | |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 171 | SctpTransport* CreateTransport(FakeDtlsTransport* fake_dtls, |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 172 | SctpFakeDataReceiver* recv) { |
| 173 | SctpTransport* transport = |
| 174 | new SctpTransport(rtc::Thread::Current(), fake_dtls); |
| 175 | // When data is received, pass it to the SctpFakeDataReceiver. |
| 176 | transport->SignalDataReceived.connect( |
| 177 | recv, &SctpFakeDataReceiver::OnDataReceived); |
| 178 | return transport; |
| 179 | } |
| 180 | |
| 181 | bool SendData(SctpTransport* chan, |
| 182 | int sid, |
| 183 | const std::string& msg, |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 184 | SendDataResult* result, |
| 185 | bool ordered = false) { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 186 | SendDataParams params; |
| 187 | params.sid = sid; |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 188 | params.ordered = ordered; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 189 | |
| 190 | return chan->SendData(params, rtc::CopyOnWriteBuffer(&msg[0], msg.length()), |
| 191 | result); |
| 192 | } |
| 193 | |
| 194 | bool ReceivedData(const SctpFakeDataReceiver* recv, |
| 195 | int sid, |
| 196 | const std::string& msg) { |
| 197 | return (recv->received() && recv->last_params().sid == sid && |
| 198 | recv->last_data() == msg); |
| 199 | } |
| 200 | |
| 201 | bool ProcessMessagesUntilIdle() { |
| 202 | rtc::Thread* thread = rtc::Thread::Current(); |
| 203 | while (!thread->empty()) { |
| 204 | rtc::Message msg; |
| 205 | if (thread->Get(&msg, rtc::Thread::kForever)) { |
| 206 | thread->Dispatch(&msg); |
| 207 | } |
| 208 | } |
| 209 | return !thread->IsQuitting(); |
| 210 | } |
| 211 | |
| 212 | SctpTransport* transport1() { return transport1_.get(); } |
| 213 | SctpTransport* transport2() { return transport2_.get(); } |
| 214 | SctpFakeDataReceiver* receiver1() { return recv1_.get(); } |
| 215 | SctpFakeDataReceiver* receiver2() { return recv2_.get(); } |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 216 | FakeDtlsTransport* fake_dtls1() { return fake_dtls1_.get(); } |
| 217 | FakeDtlsTransport* fake_dtls2() { return fake_dtls2_.get(); } |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 218 | |
| 219 | int transport1_ready_to_send_count() { |
| 220 | return transport1_ready_to_send_count_; |
| 221 | } |
| 222 | int transport2_ready_to_send_count() { |
| 223 | return transport2_ready_to_send_count_; |
| 224 | } |
| 225 | |
| 226 | private: |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 227 | std::unique_ptr<FakeDtlsTransport> fake_dtls1_; |
| 228 | std::unique_ptr<FakeDtlsTransport> fake_dtls2_; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 229 | std::unique_ptr<SctpFakeDataReceiver> recv1_; |
| 230 | std::unique_ptr<SctpFakeDataReceiver> recv2_; |
| 231 | std::unique_ptr<SctpTransport> transport1_; |
| 232 | std::unique_ptr<SctpTransport> transport2_; |
| 233 | |
| 234 | int transport1_ready_to_send_count_ = 0; |
| 235 | int transport2_ready_to_send_count_ = 0; |
| 236 | |
| 237 | void OnChan1ReadyToSend() { ++transport1_ready_to_send_count_; } |
| 238 | void OnChan2ReadyToSend() { ++transport2_ready_to_send_count_; } |
| 239 | }; |
| 240 | |
| 241 | // 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] | 242 | // transport (which is unwritable), and then switches to another transport. A |
| 243 | // common scenario due to how BUNDLE works. |
| 244 | TEST_F(SctpTransportTest, SwitchDtlsTransport) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 245 | FakeDtlsTransport black_hole("black hole", 0); |
| 246 | FakeDtlsTransport fake_dtls1("fake dtls 1", 0); |
| 247 | FakeDtlsTransport fake_dtls2("fake dtls 2", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 248 | SctpFakeDataReceiver recv1; |
| 249 | SctpFakeDataReceiver recv2; |
| 250 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 251 | // Construct transport1 with the "black hole" transport. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 252 | std::unique_ptr<SctpTransport> transport1( |
| 253 | CreateTransport(&black_hole, &recv1)); |
| 254 | std::unique_ptr<SctpTransport> transport2( |
| 255 | CreateTransport(&fake_dtls2, &recv2)); |
| 256 | |
| 257 | // Add a stream. |
| 258 | transport1->OpenStream(1); |
| 259 | transport2->OpenStream(1); |
| 260 | |
| 261 | // Tell them both to start (though transport1_ is connected to black_hole). |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 262 | transport1->Start(kTransport1Port, kTransport2Port, kSctpSendBufferSize); |
| 263 | transport2->Start(kTransport2Port, kTransport1Port, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 264 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 265 | // Switch transport1_ to the normal fake_dtls1_ transport. |
| 266 | transport1->SetDtlsTransport(&fake_dtls1); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 267 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 268 | // Connect the two fake DTLS transports. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 269 | bool asymmetric = false; |
| 270 | fake_dtls1.SetDestination(&fake_dtls2, asymmetric); |
| 271 | |
| 272 | // Make sure we end up able to send data. |
| 273 | SendDataResult result; |
| 274 | ASSERT_TRUE(SendData(transport1.get(), 1, "foo", &result)); |
| 275 | ASSERT_TRUE(SendData(transport2.get(), 1, "bar", &result)); |
| 276 | EXPECT_TRUE_WAIT(ReceivedData(&recv2, 1, "foo"), kDefaultTimeout); |
| 277 | EXPECT_TRUE_WAIT(ReceivedData(&recv1, 1, "bar"), kDefaultTimeout); |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 278 | |
| 279 | // Setting a null DtlsTransport should work. This could happen when an SCTP |
| 280 | // data section is rejected. |
| 281 | transport1->SetDtlsTransport(nullptr); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | // Calling Start twice shouldn't do anything bad, if with the same parameters. |
| 285 | TEST_F(SctpTransportTest, DuplicateStartCallsIgnored) { |
| 286 | SetupConnectedTransportsWithTwoStreams(); |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 287 | EXPECT_TRUE(transport1()->Start(kTransport1Port, kTransport2Port, |
| 288 | kSctpSendBufferSize)); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 289 | |
| 290 | // Make sure we can still send/recv data. |
| 291 | SendDataResult result; |
| 292 | ASSERT_TRUE(SendData(transport1(), 1, "foo", &result)); |
| 293 | ASSERT_TRUE(SendData(transport2(), 1, "bar", &result)); |
| 294 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "foo"), kDefaultTimeout); |
| 295 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 1, "bar"), kDefaultTimeout); |
| 296 | } |
| 297 | |
| 298 | // Calling Start a second time with a different port should fail. |
| 299 | TEST_F(SctpTransportTest, CallingStartWithDifferentPortFails) { |
| 300 | SetupConnectedTransportsWithTwoStreams(); |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 301 | EXPECT_FALSE(transport1()->Start(kTransport1Port, 1234, kSctpSendBufferSize)); |
| 302 | EXPECT_FALSE(transport1()->Start(1234, kTransport2Port, kSctpSendBufferSize)); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 303 | } |
| 304 | |
| 305 | // A value of -1 for the local/remote port should be treated as the default |
| 306 | // (5000). |
| 307 | TEST_F(SctpTransportTest, NegativeOnePortTreatedAsDefault) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 308 | FakeDtlsTransport fake_dtls1("fake dtls 1", 0); |
| 309 | FakeDtlsTransport fake_dtls2("fake dtls 2", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 310 | SctpFakeDataReceiver recv1; |
| 311 | SctpFakeDataReceiver recv2; |
| 312 | std::unique_ptr<SctpTransport> transport1( |
| 313 | CreateTransport(&fake_dtls1, &recv1)); |
| 314 | std::unique_ptr<SctpTransport> transport2( |
| 315 | CreateTransport(&fake_dtls2, &recv2)); |
| 316 | |
| 317 | // Add a stream. |
| 318 | transport1->OpenStream(1); |
| 319 | transport2->OpenStream(1); |
| 320 | |
| 321 | // Tell them both to start, giving one transport the default port and the |
| 322 | // other transport -1. |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 323 | transport1->Start(kSctpDefaultPort, kSctpDefaultPort, kSctpSendBufferSize); |
| 324 | transport2->Start(-1, -1, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 325 | |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 326 | // Connect the two fake DTLS transports. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 327 | bool asymmetric = false; |
| 328 | fake_dtls1.SetDestination(&fake_dtls2, asymmetric); |
| 329 | |
| 330 | // Make sure we end up able to send data. |
| 331 | SendDataResult result; |
| 332 | ASSERT_TRUE(SendData(transport1.get(), 1, "foo", &result)); |
| 333 | ASSERT_TRUE(SendData(transport2.get(), 1, "bar", &result)); |
| 334 | EXPECT_TRUE_WAIT(ReceivedData(&recv2, 1, "foo"), kDefaultTimeout); |
| 335 | EXPECT_TRUE_WAIT(ReceivedData(&recv1, 1, "bar"), kDefaultTimeout); |
| 336 | } |
| 337 | |
| 338 | TEST_F(SctpTransportTest, OpenStreamWithAlreadyOpenedStreamFails) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 339 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 340 | SctpFakeDataReceiver recv; |
| 341 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 342 | EXPECT_TRUE(transport->OpenStream(1)); |
| 343 | EXPECT_FALSE(transport->OpenStream(1)); |
| 344 | } |
| 345 | |
| 346 | TEST_F(SctpTransportTest, ResetStreamWithAlreadyResetStreamFails) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 347 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 348 | SctpFakeDataReceiver recv; |
| 349 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 350 | EXPECT_TRUE(transport->OpenStream(1)); |
| 351 | EXPECT_TRUE(transport->ResetStream(1)); |
| 352 | EXPECT_FALSE(transport->ResetStream(1)); |
| 353 | } |
| 354 | |
| 355 | // Test that SignalReadyToSendData is fired after Start has been called and the |
Zhi Huang | 644fde4 | 2018-04-02 19:16:26 -0700 | [diff] [blame] | 356 | // DTLS transport is writable. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 357 | TEST_F(SctpTransportTest, SignalReadyToSendDataAfterDtlsWritable) { |
zhihuang | b2cdd93 | 2017-01-19 16:54:25 -0800 | [diff] [blame] | 358 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 359 | SctpFakeDataReceiver recv; |
| 360 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 361 | SctpTransportObserver observer(transport.get()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 362 | |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 363 | transport->Start(kSctpDefaultPort, kSctpDefaultPort, kSctpSendBufferSize); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 364 | fake_dtls.SetWritable(true); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 365 | EXPECT_TRUE_WAIT(observer.ReadyToSend(), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | // Test that after an SCTP socket's buffer is filled, SignalReadyToSendData |
| 369 | // is fired after it begins to be drained. |
| 370 | TEST_F(SctpTransportTest, SignalReadyToSendDataAfterBlocked) { |
| 371 | SetupConnectedTransportsWithTwoStreams(); |
| 372 | // Wait for initial SCTP association to be formed. |
| 373 | EXPECT_EQ_WAIT(1, transport1_ready_to_send_count(), kDefaultTimeout); |
| 374 | // Make the fake transport unwritable so that messages pile up for the SCTP |
| 375 | // socket. |
| 376 | fake_dtls1()->SetWritable(false); |
| 377 | // Send messages until we get EWOULDBLOCK. |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 378 | static const size_t kMaxMessages = 1024; |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 379 | SendDataParams params; |
| 380 | params.sid = 1; |
| 381 | rtc::CopyOnWriteBuffer buf(1024); |
| 382 | memset(buf.data<uint8_t>(), 0, 1024); |
| 383 | SendDataResult result; |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 384 | size_t message_count = 0; |
| 385 | for (; message_count < kMaxMessages; ++message_count) { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 386 | if (!transport1()->SendData(params, buf, &result) && result == SDR_BLOCK) { |
| 387 | break; |
| 388 | } |
| 389 | } |
| 390 | ASSERT_NE(kMaxMessages, message_count) |
| 391 | << "Sent max number of messages without getting SDR_BLOCK?"; |
| 392 | // Make sure the ready-to-send count hasn't changed. |
| 393 | EXPECT_EQ(1, transport1_ready_to_send_count()); |
| 394 | // Make the transport writable again and expect a "SignalReadyToSendData" at |
| 395 | // some point. |
| 396 | fake_dtls1()->SetWritable(true); |
| 397 | EXPECT_EQ_WAIT(2, transport1_ready_to_send_count(), kDefaultTimeout); |
Seth Hampson | 66d6c3b | 2019-08-30 09:02:46 -0700 | [diff] [blame] | 398 | EXPECT_EQ_WAIT(message_count, receiver2()->num_messages_received(), |
| 399 | kDefaultTimeout); |
| 400 | } |
| 401 | |
| 402 | // Tests that a small message gets buffered and later sent by the SctpTransport |
| 403 | // when the sctp library only accepts the message partially. |
| 404 | TEST_F(SctpTransportTest, SendSmallBufferedOutgoingMessage) { |
| 405 | SetupConnectedTransportsWithTwoStreams(); |
| 406 | // Wait for initial SCTP association to be formed. |
| 407 | EXPECT_EQ_WAIT(1, transport1_ready_to_send_count(), kDefaultTimeout); |
| 408 | // Make the fake transport unwritable so that messages pile up for the SCTP |
| 409 | // socket. |
| 410 | fake_dtls1()->SetWritable(false); |
| 411 | SendDataResult result; |
| 412 | // TODO(bugs.webrtc.org/10939): We can't test this behavior unless we are |
| 413 | // sending in ordered mode becuase the sctp lib drops large buffered data in |
| 414 | // unordered mode. |
| 415 | bool ordered = true; |
| 416 | |
| 417 | // Fill almost all of sctp library's send buffer. |
| 418 | ASSERT_TRUE(SendData(transport1(), /*sid=*/1, |
| 419 | std::string(kSctpSendBufferSize - 1, 'a'), &result, |
| 420 | ordered)); |
| 421 | |
| 422 | std::string buffered_message("hello hello"); |
| 423 | // SctpTransport accepts this message by buffering part of it. |
| 424 | ASSERT_TRUE( |
| 425 | SendData(transport1(), /*sid=*/1, buffered_message, &result, ordered)); |
| 426 | ASSERT_TRUE(transport1()->ReadyToSendData()); |
| 427 | |
| 428 | // Sending anything else should block now. |
| 429 | ASSERT_FALSE( |
| 430 | SendData(transport1(), /*sid=*/1, "hello again", &result, ordered)); |
| 431 | ASSERT_EQ(SDR_BLOCK, result); |
| 432 | ASSERT_FALSE(transport1()->ReadyToSendData()); |
| 433 | |
| 434 | // Make sure the ready-to-send count hasn't changed. |
| 435 | EXPECT_EQ(1, transport1_ready_to_send_count()); |
| 436 | // Make the transport writable again and expect a "SignalReadyToSendData" at |
| 437 | // some point after sending the buffered message. |
| 438 | fake_dtls1()->SetWritable(true); |
| 439 | EXPECT_EQ_WAIT(2, transport1_ready_to_send_count(), kDefaultTimeout); |
| 440 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, buffered_message), |
| 441 | kDefaultTimeout); |
| 442 | EXPECT_EQ(2u, receiver2()->num_messages_received()); |
| 443 | } |
| 444 | |
| 445 | // Tests that a large message gets buffered and later sent by the SctpTransport |
| 446 | // when the sctp library only accepts the message partially. |
| 447 | TEST_F(SctpTransportTest, SendLargeBufferedOutgoingMessage) { |
| 448 | SetupConnectedTransportsWithTwoStreams(); |
| 449 | // Wait for initial SCTP association to be formed. |
| 450 | EXPECT_EQ_WAIT(1, transport1_ready_to_send_count(), kDefaultTimeout); |
| 451 | // Make the fake transport unwritable so that messages pile up for the SCTP |
| 452 | // socket. |
| 453 | fake_dtls1()->SetWritable(false); |
| 454 | SendDataResult result; |
| 455 | // TODO(bugs.webrtc.org/10939): We can't test this behavior unless we are |
| 456 | // sending in ordered mode becuase the sctp lib drops large buffered data in |
| 457 | // unordered mode. |
| 458 | bool ordered = true; |
| 459 | |
| 460 | // Fill almost all of sctp library's send buffer. |
| 461 | ASSERT_TRUE(SendData(transport1(), /*sid=*/1, |
| 462 | std::string(kSctpSendBufferSize / 2, 'a'), &result, |
| 463 | ordered)); |
| 464 | |
| 465 | std::string buffered_message(kSctpSendBufferSize, 'b'); |
| 466 | // SctpTransport accepts this message by buffering the second half. |
| 467 | ASSERT_TRUE( |
| 468 | SendData(transport1(), /*sid=*/1, buffered_message, &result, ordered)); |
| 469 | ASSERT_TRUE(transport1()->ReadyToSendData()); |
| 470 | |
| 471 | // Sending anything else should block now. |
| 472 | ASSERT_FALSE( |
| 473 | SendData(transport1(), /*sid=*/1, "hello again", &result, ordered)); |
| 474 | ASSERT_EQ(SDR_BLOCK, result); |
| 475 | ASSERT_FALSE(transport1()->ReadyToSendData()); |
| 476 | |
| 477 | // Make sure the ready-to-send count hasn't changed. |
| 478 | EXPECT_EQ(1, transport1_ready_to_send_count()); |
| 479 | // Make the transport writable again and expect a "SignalReadyToSendData" at |
| 480 | // some point. |
| 481 | fake_dtls1()->SetWritable(true); |
| 482 | EXPECT_EQ_WAIT(2, transport1_ready_to_send_count(), kDefaultTimeout); |
| 483 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, buffered_message), |
| 484 | kDefaultTimeout); |
| 485 | EXPECT_EQ(2u, receiver2()->num_messages_received()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | TEST_F(SctpTransportTest, SendData) { |
| 489 | SetupConnectedTransportsWithTwoStreams(); |
| 490 | |
| 491 | SendDataResult result; |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 492 | RTC_LOG(LS_VERBOSE) |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 493 | << "transport1 sending: 'hello?' -----------------------------"; |
| 494 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 495 | EXPECT_EQ(SDR_SUCCESS, result); |
| 496 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 497 | RTC_LOG(LS_VERBOSE) << "recv2.received=" << receiver2()->received() |
| 498 | << ", recv2.last_params.sid=" |
| 499 | << receiver2()->last_params().sid |
| 500 | << ", recv2.last_params.timestamp=" |
| 501 | << receiver2()->last_params().timestamp |
| 502 | << ", recv2.last_params.seq_num=" |
| 503 | << receiver2()->last_params().seq_num |
| 504 | << ", recv2.last_data=" << receiver2()->last_data(); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 505 | |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 506 | RTC_LOG(LS_VERBOSE) |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 507 | << "transport2 sending: 'hi transport1' -----------------------------"; |
| 508 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 509 | EXPECT_EQ(SDR_SUCCESS, result); |
| 510 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 511 | kDefaultTimeout); |
Mirko Bonadei | 675513b | 2017-11-09 11:09:25 +0100 | [diff] [blame] | 512 | RTC_LOG(LS_VERBOSE) << "recv1.received=" << receiver1()->received() |
| 513 | << ", recv1.last_params.sid=" |
| 514 | << receiver1()->last_params().sid |
| 515 | << ", recv1.last_params.timestamp=" |
| 516 | << receiver1()->last_params().timestamp |
| 517 | << ", recv1.last_params.seq_num=" |
| 518 | << receiver1()->last_params().seq_num |
| 519 | << ", recv1.last_data=" << receiver1()->last_data(); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 520 | } |
| 521 | |
| 522 | // Sends a lot of large messages at once and verifies SDR_BLOCK is returned. |
| 523 | TEST_F(SctpTransportTest, SendDataBlocked) { |
| 524 | SetupConnectedTransportsWithTwoStreams(); |
| 525 | |
| 526 | SendDataResult result; |
| 527 | SendDataParams params; |
| 528 | params.sid = 1; |
| 529 | |
| 530 | std::vector<char> buffer(1024 * 64, 0); |
| 531 | |
| 532 | for (size_t i = 0; i < 100; ++i) { |
| 533 | transport1()->SendData( |
| 534 | params, rtc::CopyOnWriteBuffer(&buffer[0], buffer.size()), &result); |
| 535 | if (result == SDR_BLOCK) |
| 536 | break; |
| 537 | } |
| 538 | |
| 539 | EXPECT_EQ(SDR_BLOCK, result); |
| 540 | } |
| 541 | |
| 542 | // Trying to send data for a nonexistent stream should fail. |
| 543 | TEST_F(SctpTransportTest, SendDataWithNonexistentStreamFails) { |
| 544 | SetupConnectedTransportsWithTwoStreams(); |
| 545 | SendDataResult result; |
| 546 | EXPECT_FALSE(SendData(transport2(), 123, "some data", &result)); |
| 547 | EXPECT_EQ(SDR_ERROR, result); |
| 548 | } |
| 549 | |
jbauch | 46d2457 | 2017-03-10 16:20:04 -0800 | [diff] [blame] | 550 | TEST_F(SctpTransportTest, SendDataHighPorts) { |
| 551 | SetupConnectedTransportsWithTwoStreams(32768, 32769); |
| 552 | |
| 553 | SendDataResult result; |
| 554 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 555 | EXPECT_EQ(SDR_SUCCESS, result); |
| 556 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 557 | |
| 558 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 559 | EXPECT_EQ(SDR_SUCCESS, result); |
| 560 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 561 | kDefaultTimeout); |
| 562 | } |
| 563 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 564 | TEST_F(SctpTransportTest, ClosesRemoteStream) { |
| 565 | SetupConnectedTransportsWithTwoStreams(); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 566 | SctpTransportObserver transport1_observer(transport1()); |
| 567 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 568 | |
| 569 | SendDataResult result; |
| 570 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 571 | EXPECT_EQ(SDR_SUCCESS, result); |
| 572 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 573 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 574 | EXPECT_EQ(SDR_SUCCESS, result); |
| 575 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 576 | kDefaultTimeout); |
| 577 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 578 | // Close stream 1 on transport 1. Transport 2 should notify us. |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 579 | transport1()->ResetStream(1); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 580 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(1), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 581 | } |
| 582 | |
| 583 | TEST_F(SctpTransportTest, ClosesTwoRemoteStreams) { |
| 584 | SetupConnectedTransportsWithTwoStreams(); |
| 585 | AddStream(3); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 586 | SctpTransportObserver transport1_observer(transport1()); |
| 587 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 588 | |
| 589 | SendDataResult result; |
| 590 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 591 | EXPECT_EQ(SDR_SUCCESS, result); |
| 592 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 593 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 594 | EXPECT_EQ(SDR_SUCCESS, result); |
| 595 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 596 | kDefaultTimeout); |
| 597 | |
| 598 | // Close two streams on one side. |
| 599 | transport2()->ResetStream(2); |
| 600 | transport2()->ResetStream(3); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 601 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(2), kDefaultTimeout); |
| 602 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(3), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 603 | } |
| 604 | |
| 605 | TEST_F(SctpTransportTest, ClosesStreamsOnBothSides) { |
| 606 | SetupConnectedTransportsWithTwoStreams(); |
| 607 | AddStream(3); |
| 608 | AddStream(4); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 609 | SctpTransportObserver transport1_observer(transport1()); |
| 610 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 611 | |
| 612 | SendDataResult result; |
| 613 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 614 | EXPECT_EQ(SDR_SUCCESS, result); |
| 615 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 616 | ASSERT_TRUE(SendData(transport2(), 2, "hi transport1", &result)); |
| 617 | EXPECT_EQ(SDR_SUCCESS, result); |
| 618 | EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi transport1"), |
| 619 | kDefaultTimeout); |
| 620 | |
| 621 | // Close one stream on transport1(), while closing three streams on |
| 622 | // transport2(). They will conflict (only one side can close anything at a |
| 623 | // time, apparently). Test the resolution of the conflict. |
| 624 | transport1()->ResetStream(1); |
| 625 | |
| 626 | transport2()->ResetStream(2); |
| 627 | transport2()->ResetStream(3); |
| 628 | transport2()->ResetStream(4); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 629 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(1), kDefaultTimeout); |
| 630 | EXPECT_TRUE_WAIT(transport1_observer.WasStreamClosed(2), kDefaultTimeout); |
| 631 | EXPECT_TRUE_WAIT(transport1_observer.WasStreamClosed(3), kDefaultTimeout); |
| 632 | EXPECT_TRUE_WAIT(transport1_observer.WasStreamClosed(4), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 633 | } |
| 634 | |
| 635 | TEST_F(SctpTransportTest, RefusesHighNumberedTransports) { |
| 636 | SetupConnectedTransportsWithTwoStreams(); |
| 637 | EXPECT_TRUE(AddStream(kMaxSctpSid)); |
| 638 | EXPECT_FALSE(AddStream(kMaxSctpSid + 1)); |
| 639 | } |
| 640 | |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 641 | TEST_F(SctpTransportTest, ReusesAStream) { |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 642 | // Shut down transport 1, then open it up again for reuse. |
| 643 | SetupConnectedTransportsWithTwoStreams(); |
| 644 | SendDataResult result; |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 645 | SctpTransportObserver transport2_observer(transport2()); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 646 | |
| 647 | ASSERT_TRUE(SendData(transport1(), 1, "hello?", &result)); |
| 648 | EXPECT_EQ(SDR_SUCCESS, result); |
| 649 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), kDefaultTimeout); |
| 650 | |
| 651 | transport1()->ResetStream(1); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 652 | EXPECT_TRUE_WAIT(transport2_observer.WasStreamClosed(1), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 653 | // Transport 1 is gone now. |
| 654 | |
| 655 | // Create a new transport 1. |
| 656 | AddStream(1); |
| 657 | ASSERT_TRUE(SendData(transport1(), 1, "hi?", &result)); |
| 658 | EXPECT_EQ(SDR_SUCCESS, result); |
| 659 | EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hi?"), kDefaultTimeout); |
| 660 | transport1()->ResetStream(1); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 661 | EXPECT_EQ_WAIT(2, transport2_observer.StreamCloseCount(1), kDefaultTimeout); |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 662 | } |
| 663 | |
Harald Alvestrand | fbb45bd | 2019-05-15 08:07:47 +0200 | [diff] [blame] | 664 | TEST_F(SctpTransportTest, RejectsTooLargeMessageSize) { |
| 665 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
| 666 | SctpFakeDataReceiver recv; |
| 667 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 668 | |
| 669 | EXPECT_FALSE(transport->Start(kSctpDefaultPort, kSctpDefaultPort, |
| 670 | kSctpSendBufferSize + 1)); |
| 671 | } |
| 672 | |
| 673 | TEST_F(SctpTransportTest, RejectsTooSmallMessageSize) { |
| 674 | FakeDtlsTransport fake_dtls("fake dtls", 0); |
| 675 | SctpFakeDataReceiver recv; |
| 676 | std::unique_ptr<SctpTransport> transport(CreateTransport(&fake_dtls, &recv)); |
| 677 | |
| 678 | EXPECT_FALSE(transport->Start(kSctpDefaultPort, kSctpDefaultPort, 0)); |
| 679 | } |
| 680 | |
| 681 | TEST_F(SctpTransportTest, RejectsSendTooLargeMessages) { |
| 682 | SetupConnectedTransportsWithTwoStreams(); |
| 683 | // Use "Start" to reduce the max message size |
| 684 | transport1()->Start(kTransport1Port, kTransport2Port, 10); |
| 685 | EXPECT_EQ(10, transport1()->max_message_size()); |
| 686 | const char eleven_characters[] = "12345678901"; |
| 687 | SendDataResult result; |
| 688 | EXPECT_FALSE(SendData(transport1(), 1, eleven_characters, &result)); |
| 689 | } |
| 690 | |
deadbeef | 953c2ce | 2017-01-09 14:53:41 -0800 | [diff] [blame] | 691 | } // namespace cricket |