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Bug: webrtc:8222 Change-Id: I1382a0727b04dfd33e79992841d885f640b3a032 Reviewed-on: https://webrtc-review.googlesource.com/8281 Commit-Queue: Steve Anton <steveanton@webrtc.org> Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20398}
301 lines
11 KiB
C++
301 lines
11 KiB
C++
/*
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* Copyright 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <tuple>
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#include "api/peerconnectionproxy.h"
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#include "media/base/fakemediaengine.h"
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#include "pc/mediasession.h"
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#include "pc/peerconnection.h"
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#include "pc/peerconnectionfactory.h"
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#include "pc/peerconnectionwrapper.h"
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#ifdef WEBRTC_ANDROID
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#include "pc/test/androidtestinitializer.h"
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#endif
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#include "pc/test/fakesctptransport.h"
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#include "rtc_base/gunit.h"
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#include "rtc_base/ptr_util.h"
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#include "rtc_base/virtualsocketserver.h"
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namespace webrtc {
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using RTCConfiguration = PeerConnectionInterface::RTCConfiguration;
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using RTCOfferAnswerOptions = PeerConnectionInterface::RTCOfferAnswerOptions;
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using ::testing::Values;
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class PeerConnectionFactoryForDataChannelTest
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: public rtc::RefCountedObject<PeerConnectionFactory> {
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public:
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PeerConnectionFactoryForDataChannelTest()
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: rtc::RefCountedObject<PeerConnectionFactory>(
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rtc::Thread::Current(),
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rtc::Thread::Current(),
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rtc::Thread::Current(),
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rtc::MakeUnique<cricket::FakeMediaEngine>(),
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CreateCallFactory(),
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nullptr) {}
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std::unique_ptr<cricket::SctpTransportInternalFactory>
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CreateSctpTransportInternalFactory() {
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auto factory = rtc::MakeUnique<FakeSctpTransportFactory>();
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last_fake_sctp_transport_factory_ = factory.get();
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return factory;
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}
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FakeSctpTransportFactory* last_fake_sctp_transport_factory_ = nullptr;
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};
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class PeerConnectionWrapperForDataChannelTest : public PeerConnectionWrapper {
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public:
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using PeerConnectionWrapper::PeerConnectionWrapper;
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FakeSctpTransportFactory* sctp_transport_factory() {
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return sctp_transport_factory_;
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}
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void set_sctp_transport_factory(
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FakeSctpTransportFactory* sctp_transport_factory) {
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sctp_transport_factory_ = sctp_transport_factory;
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}
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rtc::Optional<std::string> sctp_content_name() {
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return GetInternalPeerConnection()->sctp_content_name();
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}
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rtc::Optional<std::string> sctp_transport_name() {
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return GetInternalPeerConnection()->sctp_transport_name();
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}
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PeerConnection* GetInternalPeerConnection() {
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auto* pci = reinterpret_cast<
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PeerConnectionProxyWithInternal<PeerConnectionInterface>*>(pc());
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return reinterpret_cast<PeerConnection*>(pci->internal());
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}
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private:
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FakeSctpTransportFactory* sctp_transport_factory_ = nullptr;
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};
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class PeerConnectionDataChannelTest : public ::testing::Test {
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protected:
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typedef std::unique_ptr<PeerConnectionWrapperForDataChannelTest> WrapperPtr;
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PeerConnectionDataChannelTest()
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: vss_(new rtc::VirtualSocketServer()), main_(vss_.get()) {
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#ifdef WEBRTC_ANDROID
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InitializeAndroidObjects();
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#endif
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}
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WrapperPtr CreatePeerConnection() {
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return CreatePeerConnection(RTCConfiguration());
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}
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WrapperPtr CreatePeerConnection(const RTCConfiguration& config) {
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return CreatePeerConnection(config,
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PeerConnectionFactoryInterface::Options());
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}
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WrapperPtr CreatePeerConnection(
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const RTCConfiguration& config,
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const PeerConnectionFactoryInterface::Options factory_options) {
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rtc::scoped_refptr<PeerConnectionFactoryForDataChannelTest> pc_factory(
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new PeerConnectionFactoryForDataChannelTest());
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pc_factory->SetOptions(factory_options);
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RTC_CHECK(pc_factory->Initialize());
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auto observer = rtc::MakeUnique<MockPeerConnectionObserver>();
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auto pc = pc_factory->CreatePeerConnection(config, nullptr, nullptr,
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observer.get());
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if (!pc) {
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return nullptr;
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}
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auto wrapper = rtc::MakeUnique<PeerConnectionWrapperForDataChannelTest>(
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pc_factory, pc, std::move(observer));
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RTC_DCHECK(pc_factory->last_fake_sctp_transport_factory_);
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wrapper->set_sctp_transport_factory(
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pc_factory->last_fake_sctp_transport_factory_);
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return wrapper;
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}
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// Accepts the same arguments as CreatePeerConnection and adds a default data
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// channel.
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template <typename... Args>
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WrapperPtr CreatePeerConnectionWithDataChannel(Args&&... args) {
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auto wrapper = CreatePeerConnection(std::forward<Args>(args)...);
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if (!wrapper) {
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return nullptr;
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}
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EXPECT_TRUE(wrapper->pc()->CreateDataChannel("dc", nullptr));
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return wrapper;
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}
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// Changes the SCTP data channel port on the given session description.
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void ChangeSctpPortOnDescription(cricket::SessionDescription* desc,
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int port) {
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cricket::DataCodec sctp_codec(cricket::kGoogleSctpDataCodecPlType,
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cricket::kGoogleSctpDataCodecName);
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sctp_codec.SetParam(cricket::kCodecParamPort, port);
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auto* data_content = cricket::GetFirstDataContent(desc);
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RTC_DCHECK(data_content);
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auto* data_desc = static_cast<cricket::DataContentDescription*>(
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data_content->description);
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data_desc->set_codecs({sctp_codec});
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}
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std::unique_ptr<rtc::VirtualSocketServer> vss_;
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rtc::AutoSocketServerThread main_;
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};
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TEST_F(PeerConnectionDataChannelTest,
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NoSctpTransportCreatedIfRtpDataChannelEnabled) {
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RTCConfiguration config;
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config.enable_rtp_data_channel = true;
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auto caller = CreatePeerConnectionWithDataChannel(config);
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ASSERT_TRUE(caller->SetLocalDescription(caller->CreateOffer()));
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EXPECT_FALSE(caller->sctp_transport_factory()->last_fake_sctp_transport());
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}
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TEST_F(PeerConnectionDataChannelTest,
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RtpDataChannelCreatedEvenIfSctpAvailable) {
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RTCConfiguration config;
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config.enable_rtp_data_channel = true;
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PeerConnectionFactoryInterface::Options options;
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options.disable_sctp_data_channels = false;
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auto caller = CreatePeerConnectionWithDataChannel(config, options);
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ASSERT_TRUE(caller->SetLocalDescription(caller->CreateOffer()));
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EXPECT_FALSE(caller->sctp_transport_factory()->last_fake_sctp_transport());
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}
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// Test that sctp_content_name/sctp_transport_name (used for stats) are correct
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// before and after BUNDLE is negotiated.
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TEST_F(PeerConnectionDataChannelTest, SctpContentAndTransportNameSetCorrectly) {
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auto caller = CreatePeerConnection();
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auto callee = CreatePeerConnection();
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// Initially these fields should be empty.
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EXPECT_FALSE(caller->sctp_content_name());
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EXPECT_FALSE(caller->sctp_transport_name());
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// Create offer with audio/video/data.
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// Default bundle policy is "balanced", so data should be using its own
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// transport.
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caller->AddAudioTrack("a");
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caller->AddVideoTrack("v");
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caller->pc()->CreateDataChannel("dc", nullptr);
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ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
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ASSERT_TRUE(caller->sctp_content_name());
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EXPECT_EQ(cricket::CN_DATA, *caller->sctp_content_name());
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ASSERT_TRUE(caller->sctp_transport_name());
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EXPECT_EQ(cricket::CN_DATA, *caller->sctp_transport_name());
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// Create answer that finishes BUNDLE negotiation, which means everything
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// should be bundled on the first transport (audio).
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RTCOfferAnswerOptions options;
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options.use_rtp_mux = true;
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ASSERT_TRUE(
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caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
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ASSERT_TRUE(caller->sctp_content_name());
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EXPECT_EQ(cricket::CN_DATA, *caller->sctp_content_name());
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ASSERT_TRUE(caller->sctp_transport_name());
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EXPECT_EQ(cricket::CN_AUDIO, *caller->sctp_transport_name());
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}
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TEST_F(PeerConnectionDataChannelTest,
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CreateOfferWithNoDataChannelsGivesNoDataSection) {
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auto caller = CreatePeerConnection();
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auto offer = caller->CreateOffer();
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EXPECT_FALSE(offer->description()->GetContentByName(cricket::CN_DATA));
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EXPECT_FALSE(offer->description()->GetTransportInfoByName(cricket::CN_DATA));
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}
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TEST_F(PeerConnectionDataChannelTest,
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CreateAnswerWithRemoteSctpDataChannelIncludesDataSection) {
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auto caller = CreatePeerConnectionWithDataChannel();
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auto callee = CreatePeerConnection();
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ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
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auto answer = callee->CreateAnswer();
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ASSERT_TRUE(answer);
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auto* data_content =
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answer->description()->GetContentByName(cricket::CN_DATA);
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ASSERT_TRUE(data_content);
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EXPECT_FALSE(data_content->rejected);
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EXPECT_TRUE(answer->description()->GetTransportInfoByName(cricket::CN_DATA));
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}
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TEST_F(PeerConnectionDataChannelTest,
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CreateDataChannelWithDtlsDisabledSucceeds) {
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RTCConfiguration config;
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config.enable_dtls_srtp.emplace(false);
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auto caller = CreatePeerConnection();
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EXPECT_TRUE(caller->pc()->CreateDataChannel("dc", nullptr));
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}
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TEST_F(PeerConnectionDataChannelTest, CreateDataChannelWithSctpDisabledFails) {
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PeerConnectionFactoryInterface::Options options;
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options.disable_sctp_data_channels = true;
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auto caller = CreatePeerConnection(RTCConfiguration(), options);
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EXPECT_FALSE(caller->pc()->CreateDataChannel("dc", nullptr));
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}
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// Test that if a callee has SCTP disabled and receives an offer with an SCTP
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// data channel, the data section is rejected and no SCTP transport is created
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// on the callee.
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TEST_F(PeerConnectionDataChannelTest,
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DataSectionRejectedIfCalleeHasSctpDisabled) {
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auto caller = CreatePeerConnectionWithDataChannel();
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PeerConnectionFactoryInterface::Options options;
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options.disable_sctp_data_channels = true;
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auto callee = CreatePeerConnection(RTCConfiguration(), options);
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ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
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EXPECT_FALSE(callee->sctp_transport_factory()->last_fake_sctp_transport());
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auto answer = callee->CreateAnswer();
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auto* data_content =
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answer->description()->GetContentByName(cricket::CN_DATA);
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ASSERT_TRUE(data_content);
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EXPECT_TRUE(data_content->rejected);
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}
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TEST_F(PeerConnectionDataChannelTest, SctpPortPropagatedFromSdpToTransport) {
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constexpr int kNewSendPort = 9998;
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constexpr int kNewRecvPort = 7775;
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auto caller = CreatePeerConnectionWithDataChannel();
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auto callee = CreatePeerConnectionWithDataChannel();
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auto offer = caller->CreateOffer();
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ChangeSctpPortOnDescription(offer->description(), kNewSendPort);
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ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
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auto answer = callee->CreateAnswer();
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ChangeSctpPortOnDescription(answer->description(), kNewRecvPort);
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ASSERT_TRUE(callee->SetLocalDescription(std::move(answer)));
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auto* callee_transport =
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callee->sctp_transport_factory()->last_fake_sctp_transport();
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ASSERT_TRUE(callee_transport);
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EXPECT_EQ(kNewSendPort, callee_transport->remote_port());
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EXPECT_EQ(kNewRecvPort, callee_transport->local_port());
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}
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} // namespace webrtc
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