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henrike@webrtc.org28e20752013-07-10 00:45:36 +00001/*
jlmiller@webrtc.org5f93d0a2015-01-20 21:36:13 +00002 * libjingle
3 * Copyright 2013 Google Inc.
henrike@webrtc.org28e20752013-07-10 00:45:36 +00004 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <errno.h>
29#include <stdarg.h>
30#include <stdio.h>
31#include <string>
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +000032#include <vector>
henrike@webrtc.org28e20752013-07-10 00:45:36 +000033
buildbot@webrtc.orga09a9992014-08-13 17:26:08 +000034#include "talk/media/base/constants.h"
35#include "talk/media/base/mediachannel.h"
36#include "talk/media/sctp/sctpdataengine.h"
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000037#include "webrtc/base/bind.h"
38#include "webrtc/base/buffer.h"
39#include "webrtc/base/criticalsection.h"
40#include "webrtc/base/gunit.h"
41#include "webrtc/base/helpers.h"
42#include "webrtc/base/messagehandler.h"
43#include "webrtc/base/messagequeue.h"
44#include "webrtc/base/scoped_ptr.h"
45#include "webrtc/base/ssladapter.h"
46#include "webrtc/base/thread.h"
henrike@webrtc.org28e20752013-07-10 00:45:36 +000047
thorcarpenter@google.comc1eebfa2014-09-19 17:54:00 +000048#ifdef HAVE_NSS_SSL_H
49// TODO(thorcarpenter): Remove after webrtc switches over to BoringSSL.
50#include "webrtc/base/nssstreamadapter.h"
51#endif // HAVE_NSS_SSL_H
52
henrike@webrtc.org28e20752013-07-10 00:45:36 +000053enum {
54 MSG_PACKET = 1,
55};
56
57// Fake NetworkInterface that sends/receives sctp packets. The one in
58// talk/media/base/fakenetworkinterface.h only works with rtp/rtcp.
59class SctpFakeNetworkInterface : public cricket::MediaChannel::NetworkInterface,
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000060 public rtc::MessageHandler {
henrike@webrtc.org28e20752013-07-10 00:45:36 +000061 public:
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000062 explicit SctpFakeNetworkInterface(rtc::Thread* thread)
henrike@webrtc.org28e20752013-07-10 00:45:36 +000063 : thread_(thread),
64 dest_(NULL) {
65 }
66
67 void SetDestination(cricket::DataMediaChannel* dest) { dest_ = dest; }
68
69 protected:
70 // Called to send raw packet down the wire (e.g. SCTP an packet).
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000071 virtual bool SendPacket(rtc::Buffer* packet,
72 rtc::DiffServCodePoint dscp) {
henrike@webrtc.org28e20752013-07-10 00:45:36 +000073 LOG(LS_VERBOSE) << "SctpFakeNetworkInterface::SendPacket";
74
75 // TODO(ldixon): Can/should we use Buffer.TransferTo here?
76 // Note: this assignment does a deep copy of data from packet.
kwiberg@webrtc.orgeebcab52015-03-24 09:19:06 +000077 rtc::Buffer* buffer = new rtc::Buffer(packet->data(), packet->size());
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000078 thread_->Post(this, MSG_PACKET, rtc::WrapMessageData(buffer));
henrike@webrtc.org28e20752013-07-10 00:45:36 +000079 LOG(LS_VERBOSE) << "SctpFakeNetworkInterface::SendPacket, Posted message.";
80 return true;
81 }
82
83 // Called when a raw packet has been recieved. This passes the data to the
84 // code that will interpret the packet. e.g. to get the content payload from
85 // an SCTP packet.
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000086 virtual void OnMessage(rtc::Message* msg) {
henrike@webrtc.org28e20752013-07-10 00:45:36 +000087 LOG(LS_VERBOSE) << "SctpFakeNetworkInterface::OnMessage";
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000088 rtc::scoped_ptr<rtc::Buffer> buffer(
89 static_cast<rtc::TypedMessageData<rtc::Buffer*>*>(
jiayl@webrtc.orgacede342014-06-18 23:36:16 +000090 msg->pdata)->data());
henrike@webrtc.org28e20752013-07-10 00:45:36 +000091 if (dest_) {
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +000092 dest_->OnPacketReceived(buffer.get(), rtc::PacketTime());
henrike@webrtc.org28e20752013-07-10 00:45:36 +000093 }
jiayl@webrtc.orgacede342014-06-18 23:36:16 +000094 delete msg->pdata;
henrike@webrtc.org28e20752013-07-10 00:45:36 +000095 }
96
97 // Unsupported functions required to exist by NetworkInterface.
98 // TODO(ldixon): Refactor parent NetworkInterface class so these are not
99 // required. They are RTC specific and should be in an appropriate subclass.
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000100 virtual bool SendRtcp(rtc::Buffer* packet,
101 rtc::DiffServCodePoint dscp) {
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000102 LOG(LS_WARNING) << "Unsupported: SctpFakeNetworkInterface::SendRtcp.";
103 return false;
104 }
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000105 virtual int SetOption(SocketType type, rtc::Socket::Option opt,
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000106 int option) {
107 LOG(LS_WARNING) << "Unsupported: SctpFakeNetworkInterface::SetOption.";
108 return 0;
109 }
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000110 virtual void SetDefaultDSCPCode(rtc::DiffServCodePoint dscp) {
mallinath@webrtc.org1112c302013-09-23 20:34:45 +0000111 LOG(LS_WARNING) << "Unsupported: SctpFakeNetworkInterface::SetOption.";
112 }
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000113
114 private:
115 // Not owned by this class.
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000116 rtc::Thread* thread_;
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000117 cricket::DataMediaChannel* dest_;
118};
119
120// This is essentially a buffer to hold recieved data. It stores only the last
121// received data. Calling OnDataReceived twice overwrites old data with the
122// newer one.
123// TODO(ldixon): Implement constraints, and allow new data to be added to old
124// instead of replacing it.
125class SctpFakeDataReceiver : public sigslot::has_slots<> {
126 public:
127 SctpFakeDataReceiver() : received_(false) {}
128
129 void Clear() {
130 received_ = false;
131 last_data_ = "";
132 last_params_ = cricket::ReceiveDataParams();
133 }
134
135 virtual void OnDataReceived(const cricket::ReceiveDataParams& params,
136 const char* data, size_t length) {
137 received_ = true;
138 last_data_ = std::string(data, length);
139 last_params_ = params;
140 }
141
142 bool received() const { return received_; }
143 std::string last_data() const { return last_data_; }
144 cricket::ReceiveDataParams last_params() const { return last_params_; }
145
146 private:
147 bool received_;
148 std::string last_data_;
149 cricket::ReceiveDataParams last_params_;
150};
151
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000152class SignalReadyToSendObserver : public sigslot::has_slots<> {
153 public:
154 SignalReadyToSendObserver() : signaled_(false), writable_(false) {}
155
156 void OnSignaled(bool writable) {
157 signaled_ = true;
158 writable_ = writable;
159 }
160
161 bool IsSignaled(bool writable) {
162 return signaled_ && (writable_ == writable);
163 }
164
165 private:
166 bool signaled_;
167 bool writable_;
168};
169
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000170class SignalChannelClosedObserver : public sigslot::has_slots<> {
171 public:
172 SignalChannelClosedObserver() {}
173 void BindSelf(cricket::SctpDataMediaChannel* channel) {
buildbot@webrtc.org1d66be22014-05-29 22:54:24 +0000174 channel->SignalStreamClosedRemotely.connect(
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000175 this, &SignalChannelClosedObserver::OnStreamClosed);
176 }
buildbot@webrtc.org1d66be22014-05-29 22:54:24 +0000177 void OnStreamClosed(uint32 stream) {
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000178 streams_.push_back(stream);
179 }
180
buildbot@webrtc.org1d66be22014-05-29 22:54:24 +0000181 int StreamCloseCount(uint32 stream) {
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000182 return std::count(streams_.begin(), streams_.end(), stream);
183 }
184
buildbot@webrtc.org1d66be22014-05-29 22:54:24 +0000185 bool WasStreamClosed(uint32 stream) {
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000186 return std::find(streams_.begin(), streams_.end(), stream)
187 != streams_.end();
188 }
189
190 private:
buildbot@webrtc.org1d66be22014-05-29 22:54:24 +0000191 std::vector<uint32> streams_;
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000192};
193
194class SignalChannelClosedReopener : public sigslot::has_slots<> {
195 public:
196 SignalChannelClosedReopener(cricket::SctpDataMediaChannel* channel,
197 cricket::SctpDataMediaChannel* peer)
198 : channel_(channel), peer_(peer) {}
199
200 void OnStreamClosed(int stream) {
201 cricket::StreamParams p(cricket::StreamParams::CreateLegacy(stream));
202 channel_->AddSendStream(p);
203 channel_->AddRecvStream(p);
204 peer_->AddSendStream(p);
205 peer_->AddRecvStream(p);
206 streams_.push_back(stream);
207 }
208
209 int StreamCloseCount(int stream) {
210 return std::count(streams_.begin(), streams_.end(), stream);
211 }
212
213 private:
214 cricket::SctpDataMediaChannel* channel_;
215 cricket::SctpDataMediaChannel* peer_;
216 std::vector<int> streams_;
217};
218
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000219// SCTP Data Engine testing framework.
wu@webrtc.org1d1ffc92013-10-16 18:12:02 +0000220class SctpDataMediaChannelTest : public testing::Test,
221 public sigslot::has_slots<> {
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000222 protected:
jiayl@webrtc.orga576faf2014-01-29 17:45:53 +0000223 // usrsctp uses the NSS random number generator on non-Android platforms,
224 // so we need to initialize SSL.
225 static void SetUpTestCase() {
thorcarpenter@google.comc1eebfa2014-09-19 17:54:00 +0000226#ifdef HAVE_NSS_SSL_H
227 // TODO(thorcarpenter): Remove after webrtc switches over to BoringSSL.
228 if (!rtc::NSSContext::InitializeSSL(NULL)) {
229 LOG(LS_WARNING) << "Unabled to initialize NSS.";
230 }
231#endif // HAVE_NSS_SSL_H
jiayl@webrtc.orga576faf2014-01-29 17:45:53 +0000232 }
233
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000234 virtual void SetUp() {
235 engine_.reset(new cricket::SctpDataEngine());
236 }
237
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000238 void SetupConnectedChannels() {
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000239 net1_.reset(new SctpFakeNetworkInterface(rtc::Thread::Current()));
240 net2_.reset(new SctpFakeNetworkInterface(rtc::Thread::Current()));
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000241 recv1_.reset(new SctpFakeDataReceiver());
242 recv2_.reset(new SctpFakeDataReceiver());
Lally Singhe8386d22015-08-28 14:54:37 -0400243 chan1_ready_to_send_count_ = 0;
244 chan2_ready_to_send_count_ = 0;
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000245 chan1_.reset(CreateChannel(net1_.get(), recv1_.get()));
246 chan1_->set_debug_name("chan1/connector");
Lally Singhe8386d22015-08-28 14:54:37 -0400247 chan1_->SignalReadyToSend.connect(
248 this, &SctpDataMediaChannelTest::OnChan1ReadyToSend);
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000249 chan2_.reset(CreateChannel(net2_.get(), recv2_.get()));
250 chan2_->set_debug_name("chan2/listener");
Lally Singhe8386d22015-08-28 14:54:37 -0400251 chan2_->SignalReadyToSend.connect(
252 this, &SctpDataMediaChannelTest::OnChan2ReadyToSend);
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000253 // Setup two connected channels ready to send and receive.
254 net1_->SetDestination(chan2_.get());
255 net2_->SetDestination(chan1_.get());
256
257 LOG(LS_VERBOSE) << "Channel setup ----------------------------- ";
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000258 AddStream(1);
259 AddStream(2);
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000260
261 LOG(LS_VERBOSE) << "Connect the channels -----------------------------";
262 // chan1 wants to setup a data connection.
263 chan1_->SetReceive(true);
264 // chan1 will have sent chan2 a request to setup a data connection. After
265 // chan2 accepts the offer, chan2 connects to chan1 with the following.
266 chan2_->SetReceive(true);
267 chan2_->SetSend(true);
268 // Makes sure that network packets are delivered and simulates a
269 // deterministic and realistic small timing delay between the SetSend calls.
270 ProcessMessagesUntilIdle();
271
272 // chan1 and chan2 are now connected so chan1 enables sending to complete
273 // the creation of the connection.
274 chan1_->SetSend(true);
275 }
276
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000277 virtual void TearDown() {
278 channel1()->SetSend(false);
279 channel2()->SetSend(false);
pbos@webrtc.org7118e612014-09-08 21:44:07 +0000280
281 // Process messages until idle to prevent a sent packet from being dropped
282 // and causing memory leaks (not being deleted by the receiver).
283 ProcessMessagesUntilIdle();
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000284 }
285
286 void AddStream(int ssrc) {
287 cricket::StreamParams p(cricket::StreamParams::CreateLegacy(ssrc));
288 chan1_->AddSendStream(p);
289 chan1_->AddRecvStream(p);
290 chan2_->AddSendStream(p);
291 chan2_->AddRecvStream(p);
292 }
293
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000294 cricket::SctpDataMediaChannel* CreateChannel(
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000295 SctpFakeNetworkInterface* net, SctpFakeDataReceiver* recv) {
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000296 cricket::SctpDataMediaChannel* channel =
297 static_cast<cricket::SctpDataMediaChannel*>(engine_->CreateChannel(
298 cricket::DCT_SCTP));
299 channel->SetInterface(net);
300 // When data is received, pass it to the SctpFakeDataReceiver.
301 channel->SignalDataReceived.connect(
302 recv, &SctpFakeDataReceiver::OnDataReceived);
303 return channel;
304 }
305
306 bool SendData(cricket::SctpDataMediaChannel* chan, uint32 ssrc,
307 const std::string& msg,
308 cricket::SendDataResult* result) {
309 cricket::SendDataParams params;
310 params.ssrc = ssrc;
henrika@webrtc.orgaebb1ad2014-01-14 10:00:58 +0000311
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000312 return chan->SendData(params, rtc::Buffer(
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000313 &msg[0], msg.length()), result);
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000314 }
315
316 bool ReceivedData(const SctpFakeDataReceiver* recv, uint32 ssrc,
317 const std::string& msg ) {
318 return (recv->received() &&
319 recv->last_params().ssrc == ssrc &&
320 recv->last_data() == msg);
321 }
322
323 bool ProcessMessagesUntilIdle() {
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000324 rtc::Thread* thread = rtc::Thread::Current();
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000325 while (!thread->empty()) {
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000326 rtc::Message msg;
andresp@webrtc.org53d90122015-02-09 14:19:09 +0000327 if (thread->Get(&msg, rtc::Thread::kForever)) {
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000328 thread->Dispatch(&msg);
329 }
330 }
331 return !thread->IsQuitting();
332 }
333
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000334 cricket::SctpDataMediaChannel* channel1() { return chan1_.get(); }
335 cricket::SctpDataMediaChannel* channel2() { return chan2_.get(); }
336 SctpFakeDataReceiver* receiver1() { return recv1_.get(); }
337 SctpFakeDataReceiver* receiver2() { return recv2_.get(); }
338
Lally Singhe8386d22015-08-28 14:54:37 -0400339 int channel1_ready_to_send_count() { return chan1_ready_to_send_count_; }
340 int channel2_ready_to_send_count() { return chan2_ready_to_send_count_; }
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000341 private:
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000342 rtc::scoped_ptr<cricket::SctpDataEngine> engine_;
343 rtc::scoped_ptr<SctpFakeNetworkInterface> net1_;
344 rtc::scoped_ptr<SctpFakeNetworkInterface> net2_;
345 rtc::scoped_ptr<SctpFakeDataReceiver> recv1_;
346 rtc::scoped_ptr<SctpFakeDataReceiver> recv2_;
347 rtc::scoped_ptr<cricket::SctpDataMediaChannel> chan1_;
348 rtc::scoped_ptr<cricket::SctpDataMediaChannel> chan2_;
Lally Singhe8386d22015-08-28 14:54:37 -0400349
350 int chan1_ready_to_send_count_;
351 int chan2_ready_to_send_count_;
352
353 void OnChan1ReadyToSend(bool send) {
354 if (send)
355 ++chan1_ready_to_send_count_;
356 }
357 void OnChan2ReadyToSend(bool send) {
358 if (send)
359 ++chan2_ready_to_send_count_;
360 }
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000361};
362
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000363// Verifies that SignalReadyToSend is fired.
364TEST_F(SctpDataMediaChannelTest, SignalReadyToSend) {
365 SetupConnectedChannels();
366
367 SignalReadyToSendObserver signal_observer_1;
368 SignalReadyToSendObserver signal_observer_2;
369
370 channel1()->SignalReadyToSend.connect(&signal_observer_1,
371 &SignalReadyToSendObserver::OnSignaled);
372 channel2()->SignalReadyToSend.connect(&signal_observer_2,
373 &SignalReadyToSendObserver::OnSignaled);
374
375 cricket::SendDataResult result;
376 ASSERT_TRUE(SendData(channel1(), 1, "hello?", &result));
377 EXPECT_EQ(cricket::SDR_SUCCESS, result);
378 EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), 1000);
379 ASSERT_TRUE(SendData(channel2(), 2, "hi chan1", &result));
380 EXPECT_EQ(cricket::SDR_SUCCESS, result);
381 EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi chan1"), 1000);
382
383 EXPECT_TRUE_WAIT(signal_observer_1.IsSignaled(true), 1000);
384 EXPECT_TRUE_WAIT(signal_observer_2.IsSignaled(true), 1000);
385}
386
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000387TEST_F(SctpDataMediaChannelTest, SendData) {
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000388 SetupConnectedChannels();
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000389
390 cricket::SendDataResult result;
391 LOG(LS_VERBOSE) << "chan1 sending: 'hello?' -----------------------------";
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000392 ASSERT_TRUE(SendData(channel1(), 1, "hello?", &result));
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000393 EXPECT_EQ(cricket::SDR_SUCCESS, result);
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000394 EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), 1000);
395 LOG(LS_VERBOSE) << "recv2.received=" << receiver2()->received()
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000396 << ", recv2.last_params.ssrc="
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000397 << receiver2()->last_params().ssrc
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000398 << ", recv2.last_params.timestamp="
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000399 << receiver2()->last_params().ssrc
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000400 << ", recv2.last_params.seq_num="
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000401 << receiver2()->last_params().seq_num
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000402 << ", recv2.last_data=" << receiver2()->last_data();
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000403
404 LOG(LS_VERBOSE) << "chan2 sending: 'hi chan1' -----------------------------";
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000405 ASSERT_TRUE(SendData(channel2(), 2, "hi chan1", &result));
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000406 EXPECT_EQ(cricket::SDR_SUCCESS, result);
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000407 EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi chan1"), 1000);
408 LOG(LS_VERBOSE) << "recv1.received=" << receiver1()->received()
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000409 << ", recv1.last_params.ssrc="
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000410 << receiver1()->last_params().ssrc
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000411 << ", recv1.last_params.timestamp="
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000412 << receiver1()->last_params().ssrc
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000413 << ", recv1.last_params.seq_num="
wu@webrtc.orgd64719d2013-08-01 00:00:07 +0000414 << receiver1()->last_params().seq_num
jiayl@webrtc.orgf8063d32014-06-18 21:30:40 +0000415 << ", recv1.last_data=" << receiver1()->last_data();
henrike@webrtc.org28e20752013-07-10 00:45:36 +0000416}
wu@webrtc.org1d1ffc92013-10-16 18:12:02 +0000417
jiayl@webrtc.orgf7026cd2014-05-08 16:02:23 +0000418// Sends a lot of large messages at once and verifies SDR_BLOCK is returned.
419TEST_F(SctpDataMediaChannelTest, SendDataBlocked) {
420 SetupConnectedChannels();
421
422 cricket::SendDataResult result;
423 cricket::SendDataParams params;
424 params.ssrc = 1;
425
426 std::vector<char> buffer(1024 * 64, 0);
427
428 for (size_t i = 0; i < 100; ++i) {
429 channel1()->SendData(
buildbot@webrtc.orgd4e598d2014-07-29 17:36:52 +0000430 params, rtc::Buffer(&buffer[0], buffer.size()), &result);
jiayl@webrtc.orgf7026cd2014-05-08 16:02:23 +0000431 if (result == cricket::SDR_BLOCK)
432 break;
433 }
434
435 EXPECT_EQ(cricket::SDR_BLOCK, result);
436}
437
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000438TEST_F(SctpDataMediaChannelTest, ClosesRemoteStream) {
439 SetupConnectedChannels();
440 SignalChannelClosedObserver chan_1_sig_receiver, chan_2_sig_receiver;
441 chan_1_sig_receiver.BindSelf(channel1());
442 chan_2_sig_receiver.BindSelf(channel2());
443
444 cricket::SendDataResult result;
445 ASSERT_TRUE(SendData(channel1(), 1, "hello?", &result));
446 EXPECT_EQ(cricket::SDR_SUCCESS, result);
447 EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), 1000);
448 ASSERT_TRUE(SendData(channel2(), 2, "hi chan1", &result));
449 EXPECT_EQ(cricket::SDR_SUCCESS, result);
450 EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi chan1"), 1000);
451
452 // Close channel 1. Channel 2 should notify us.
453 channel1()->RemoveSendStream(1);
454 EXPECT_TRUE_WAIT(chan_2_sig_receiver.WasStreamClosed(1), 1000);
455}
456
457TEST_F(SctpDataMediaChannelTest, ClosesTwoRemoteStreams) {
458 SetupConnectedChannels();
459 AddStream(3);
460 SignalChannelClosedObserver chan_1_sig_receiver, chan_2_sig_receiver;
461 chan_1_sig_receiver.BindSelf(channel1());
462 chan_2_sig_receiver.BindSelf(channel2());
463
464 cricket::SendDataResult result;
465 ASSERT_TRUE(SendData(channel1(), 1, "hello?", &result));
466 EXPECT_EQ(cricket::SDR_SUCCESS, result);
467 EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), 1000);
468 ASSERT_TRUE(SendData(channel2(), 2, "hi chan1", &result));
469 EXPECT_EQ(cricket::SDR_SUCCESS, result);
470 EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi chan1"), 1000);
471
472 // Close two streams on one side.
473 channel2()->RemoveSendStream(2);
474 channel2()->RemoveSendStream(3);
475 EXPECT_TRUE_WAIT(chan_1_sig_receiver.WasStreamClosed(2), 1000);
476 EXPECT_TRUE_WAIT(chan_1_sig_receiver.WasStreamClosed(3), 1000);
477}
478
479TEST_F(SctpDataMediaChannelTest, ClosesStreamsOnBothSides) {
480 SetupConnectedChannels();
481 AddStream(3);
482 AddStream(4);
483 SignalChannelClosedObserver chan_1_sig_receiver, chan_2_sig_receiver;
484 chan_1_sig_receiver.BindSelf(channel1());
485 chan_2_sig_receiver.BindSelf(channel2());
486
487 cricket::SendDataResult result;
488 ASSERT_TRUE(SendData(channel1(), 1, "hello?", &result));
489 EXPECT_EQ(cricket::SDR_SUCCESS, result);
490 EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), 1000);
491 ASSERT_TRUE(SendData(channel2(), 2, "hi chan1", &result));
492 EXPECT_EQ(cricket::SDR_SUCCESS, result);
493 EXPECT_TRUE_WAIT(ReceivedData(receiver1(), 2, "hi chan1"), 1000);
494
495 // Close one stream on channel1(), while closing three streams on
496 // channel2(). They will conflict (only one side can close anything at a
497 // time, apparently). Test the resolution of the conflict.
498 channel1()->RemoveSendStream(1);
499
500 channel2()->RemoveSendStream(2);
501 channel2()->RemoveSendStream(3);
502 channel2()->RemoveSendStream(4);
503 EXPECT_TRUE_WAIT(chan_2_sig_receiver.WasStreamClosed(1), 1000);
504 EXPECT_TRUE_WAIT(chan_1_sig_receiver.WasStreamClosed(2), 1000);
505 EXPECT_TRUE_WAIT(chan_1_sig_receiver.WasStreamClosed(3), 1000);
506 EXPECT_TRUE_WAIT(chan_1_sig_receiver.WasStreamClosed(4), 1000);
507}
508
Lally Singhe8386d22015-08-28 14:54:37 -0400509TEST_F(SctpDataMediaChannelTest, EngineSignalsRightChannel) {
510 SetupConnectedChannels();
511 EXPECT_TRUE_WAIT(channel1()->socket() != NULL, 1000);
512 struct socket *sock = const_cast<struct socket*>(channel1()->socket());
513 int prior_count = channel1_ready_to_send_count();
514 cricket::SctpDataEngine::SendThresholdCallback(sock, 0);
515 EXPECT_GT(channel1_ready_to_send_count(), prior_count);
516}
517
tina.legrand@webrtc.org0c262992015-03-19 13:27:50 +0000518// Flaky on Linux and Windows. See webrtc:4453.
519#if defined(WEBRTC_WIN) || defined(WEBRTC_LINUX)
520#define MAYBE_ReusesAStream DISABLED_ReusesAStream
521#else
522#define MAYBE_ReusesAStream ReusesAStream
523#endif
524TEST_F(SctpDataMediaChannelTest, MAYBE_ReusesAStream) {
wu@webrtc.orgf6d6ed02014-01-03 22:08:47 +0000525 // Shut down channel 1, then open it up again for reuse.
526 SetupConnectedChannels();
527 cricket::SendDataResult result;
528 SignalChannelClosedObserver chan_2_sig_receiver;
529 chan_2_sig_receiver.BindSelf(channel2());
530
531 ASSERT_TRUE(SendData(channel1(), 1, "hello?", &result));
532 EXPECT_EQ(cricket::SDR_SUCCESS, result);
533 EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hello?"), 1000);
534
535 channel1()->RemoveSendStream(1);
536 EXPECT_TRUE_WAIT(chan_2_sig_receiver.WasStreamClosed(1), 1000);
537 // Channel 1 is gone now.
538
539 // Create a new channel 1.
540 AddStream(1);
541 ASSERT_TRUE(SendData(channel1(), 1, "hi?", &result));
542 EXPECT_EQ(cricket::SDR_SUCCESS, result);
543 EXPECT_TRUE_WAIT(ReceivedData(receiver2(), 1, "hi?"), 1000);
544 channel1()->RemoveSendStream(1);
545 EXPECT_TRUE_WAIT(chan_2_sig_receiver.StreamCloseCount(1) == 2, 1000);
546}