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webrtc / src / 4ab61cb9b4499a5e92d29abf5c0df90ca7fdc95c / . / pc / jsep_transport_controller_unittest.cc
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/*
* Copyright 2018 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "pc/jsep_transport_controller.h"
#include <map>
#include <memory>
#include "api/test/fake_media_transport.h"
#include "api/test/loopback_media_transport.h"
#include "api/transport/media/media_transport_interface.h"
#include "p2p/base/dtls_transport_factory.h"
#include "p2p/base/fake_dtls_transport.h"
#include "p2p/base/fake_ice_transport.h"
#include "p2p/base/transport_info.h"
#include "rtc_base/gunit.h"
#include "rtc_base/thread.h"
#include "test/gtest.h"
using cricket::Candidate;
using cricket::Candidates;
using cricket::FakeDtlsTransport;
using webrtc::SdpType;
static const int kTimeout = 100;
static const char kIceUfrag1[] = "u0001";
static const char kIcePwd1[] = "TESTICEPWD00000000000001";
static const char kIceUfrag2[] = "u0002";
static const char kIcePwd2[] = "TESTICEPWD00000000000002";
static const char kIceUfrag3[] = "u0003";
static const char kIcePwd3[] = "TESTICEPWD00000000000003";
static const char kAudioMid1[] = "audio1";
static const char kAudioMid2[] = "audio2";
static const char kVideoMid1[] = "video1";
static const char kVideoMid2[] = "video2";
static const char kDataMid1[] = "data1";
namespace webrtc {
namespace {
// Media transport factory requires crypto settings to be present in order to
// create media transport.
void AddCryptoSettings(cricket::SessionDescription* description) {
for (auto& content : description->contents()) {
content.media_description()->AddCrypto(cricket::CryptoParams(
/*t=*/0, std::string(rtc::CS_AES_CM_128_HMAC_SHA1_80),
"inline:YUJDZGVmZ2hpSktMbW9QUXJzVHVWd3l6MTIzNDU2", ""));
}
}
} // namespace
class FakeIceTransportFactory : public webrtc::IceTransportFactory {
public:
~FakeIceTransportFactory() override = default;
rtc::scoped_refptr<IceTransportInterface> CreateIceTransport(
const std::string& transport_name,
int component,
IceTransportInit init) override {
return new rtc::RefCountedObject<cricket::FakeIceTransportWrapper>(
std::make_unique<cricket::FakeIceTransport>(transport_name, component));
}
};
class FakeDtlsTransportFactory : public cricket::DtlsTransportFactory {
public:
std::unique_ptr<cricket::DtlsTransportInternal> CreateDtlsTransport(
cricket::IceTransportInternal* ice,
const webrtc::CryptoOptions& crypto_options) override {
return std::make_unique<FakeDtlsTransport>(
static_cast<cricket::FakeIceTransport*>(ice));
}
};
class JsepTransportControllerTest : public JsepTransportController::Observer,
public ::testing::Test,
public sigslot::has_slots<> {
public:
JsepTransportControllerTest() : signaling_thread_(rtc::Thread::Current()) {
fake_ice_transport_factory_ = std::make_unique<FakeIceTransportFactory>();
fake_dtls_transport_factory_ = std::make_unique<FakeDtlsTransportFactory>();
}
void CreateJsepTransportController(
JsepTransportController::Config config,
rtc::Thread* signaling_thread = rtc::Thread::Current(),
rtc::Thread* network_thread = rtc::Thread::Current(),
cricket::PortAllocator* port_allocator = nullptr) {
config.transport_observer = this;
config.rtcp_handler = [](const rtc::CopyOnWriteBuffer& packet,
int64_t packet_time_us) { RTC_NOTREACHED(); };
config.ice_transport_factory = fake_ice_transport_factory_.get();
config.dtls_transport_factory = fake_dtls_transport_factory_.get();
transport_controller_ = std::make_unique<JsepTransportController>(
signaling_thread, network_thread, port_allocator,
nullptr /* async_resolver_factory */, config);
ConnectTransportControllerSignals();
}
void ConnectTransportControllerSignals() {
transport_controller_->SignalIceConnectionState.connect(
this, &JsepTransportControllerTest::OnConnectionState);
transport_controller_->SignalStandardizedIceConnectionState.connect(
this, &JsepTransportControllerTest::OnStandardizedIceConnectionState);
transport_controller_->SignalConnectionState.connect(
this, &JsepTransportControllerTest::OnCombinedConnectionState);
transport_controller_->SignalIceGatheringState.connect(
this, &JsepTransportControllerTest::OnGatheringState);
transport_controller_->SignalIceCandidatesGathered.connect(
this, &JsepTransportControllerTest::OnCandidatesGathered);
}
std::unique_ptr<cricket::SessionDescription>
CreateSessionDescriptionWithoutBundle() {
auto description = std::make_unique<cricket::SessionDescription>();
AddAudioSection(description.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddVideoSection(description.get(), kVideoMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
return description;
}
std::unique_ptr<cricket::SessionDescription>
CreateSessionDescriptionWithBundleGroup() {
auto description = CreateSessionDescriptionWithoutBundle();
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kVideoMid1);
description->AddGroup(bundle_group);
return description;
}
std::unique_ptr<cricket::SessionDescription>
CreateSessionDescriptionWithBundledData() {
auto description = CreateSessionDescriptionWithoutBundle();
AddDataSection(description.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kVideoMid1);
bundle_group.AddContentName(kDataMid1);
description->AddGroup(bundle_group);
return description;
}
void AddAudioSection(cricket::SessionDescription* description,
const std::string& mid,
const std::string& ufrag,
const std::string& pwd,
cricket::IceMode ice_mode,
cricket::ConnectionRole conn_role,
rtc::scoped_refptr<rtc::RTCCertificate> cert) {
std::unique_ptr<cricket::AudioContentDescription> audio(
new cricket::AudioContentDescription());
// Set RTCP-mux to be true because the default policy is "mux required".
audio->set_rtcp_mux(true);
description->AddContent(mid, cricket::MediaProtocolType::kRtp,
/*rejected=*/false, std::move(audio));
AddTransportInfo(description, mid, ufrag, pwd, ice_mode, conn_role, cert);
}
void AddVideoSection(cricket::SessionDescription* description,
const std::string& mid,
const std::string& ufrag,
const std::string& pwd,
cricket::IceMode ice_mode,
cricket::ConnectionRole conn_role,
rtc::scoped_refptr<rtc::RTCCertificate> cert) {
std::unique_ptr<cricket::VideoContentDescription> video(
new cricket::VideoContentDescription());
// Set RTCP-mux to be true because the default policy is "mux required".
video->set_rtcp_mux(true);
description->AddContent(mid, cricket::MediaProtocolType::kRtp,
/*rejected=*/false, std::move(video));
AddTransportInfo(description, mid, ufrag, pwd, ice_mode, conn_role, cert);
}
void AddDataSection(cricket::SessionDescription* description,
const std::string& mid,
cricket::MediaProtocolType protocol_type,
const std::string& ufrag,
const std::string& pwd,
cricket::IceMode ice_mode,
cricket::ConnectionRole conn_role,
rtc::scoped_refptr<rtc::RTCCertificate> cert) {
RTC_CHECK(protocol_type == cricket::MediaProtocolType::kSctp);
std::unique_ptr<cricket::SctpDataContentDescription> data(
new cricket::SctpDataContentDescription());
data->set_rtcp_mux(true);
description->AddContent(mid, protocol_type,
/*rejected=*/false, std::move(data));
AddTransportInfo(description, mid, ufrag, pwd, ice_mode, conn_role, cert);
}
void AddTransportInfo(cricket::SessionDescription* description,
const std::string& mid,
const std::string& ufrag,
const std::string& pwd,
cricket::IceMode ice_mode,
cricket::ConnectionRole conn_role,
rtc::scoped_refptr<rtc::RTCCertificate> cert) {
std::unique_ptr<rtc::SSLFingerprint> fingerprint;
if (cert) {
fingerprint = rtc::SSLFingerprint::CreateFromCertificate(*cert);
}
cricket::TransportDescription transport_desc(std::vector<std::string>(),
ufrag, pwd, ice_mode,
conn_role, fingerprint.get());
description->AddTransportInfo(cricket::TransportInfo(mid, transport_desc));
}
cricket::IceConfig CreateIceConfig(
int receiving_timeout,
cricket::ContinualGatheringPolicy continual_gathering_policy) {
cricket::IceConfig config;
config.receiving_timeout = receiving_timeout;
config.continual_gathering_policy = continual_gathering_policy;
return config;
}
Candidate CreateCandidate(const std::string& transport_name, int component) {
Candidate c;
c.set_transport_name(transport_name);
c.set_address(rtc::SocketAddress("192.168.1.1", 8000));
c.set_component(component);
c.set_protocol(cricket::UDP_PROTOCOL_NAME);
c.set_priority(1);
return c;
}
void CreateLocalDescriptionAndCompleteConnectionOnNetworkThread() {
if (!network_thread_->IsCurrent()) {
network_thread_->Invoke<void>(RTC_FROM_HERE, [&] {
CreateLocalDescriptionAndCompleteConnectionOnNetworkThread();
});
return;
}
auto description = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
transport_controller_->MaybeStartGathering();
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
auto fake_video_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1));
fake_audio_dtls->fake_ice_transport()->SignalCandidateGathered(
fake_audio_dtls->fake_ice_transport(),
CreateCandidate(kAudioMid1, /*component=*/1));
fake_video_dtls->fake_ice_transport()->SignalCandidateGathered(
fake_video_dtls->fake_ice_transport(),
CreateCandidate(kVideoMid1, /*component=*/1));
fake_audio_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
fake_video_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
fake_audio_dtls->fake_ice_transport()->SetConnectionCount(2);
fake_video_dtls->fake_ice_transport()->SetConnectionCount(2);
fake_audio_dtls->SetReceiving(true);
fake_video_dtls->SetReceiving(true);
fake_audio_dtls->SetWritable(true);
fake_video_dtls->SetWritable(true);
fake_audio_dtls->fake_ice_transport()->SetConnectionCount(1);
fake_video_dtls->fake_ice_transport()->SetConnectionCount(1);
}
protected:
void OnConnectionState(cricket::IceConnectionState state) {
if (!signaling_thread_->IsCurrent()) {
signaled_on_non_signaling_thread_ = true;
}
connection_state_ = state;
++connection_state_signal_count_;
}
void OnStandardizedIceConnectionState(
PeerConnectionInterface::IceConnectionState state) {
if (!signaling_thread_->IsCurrent()) {
signaled_on_non_signaling_thread_ = true;
}
ice_connection_state_ = state;
++ice_connection_state_signal_count_;
}
void OnCombinedConnectionState(
PeerConnectionInterface::PeerConnectionState state) {
RTC_LOG(LS_INFO) << "OnCombinedConnectionState: "
<< static_cast<int>(state);
if (!signaling_thread_->IsCurrent()) {
signaled_on_non_signaling_thread_ = true;
}
combined_connection_state_ = state;
++combined_connection_state_signal_count_;
}
void OnGatheringState(cricket::IceGatheringState state) {
if (!signaling_thread_->IsCurrent()) {
signaled_on_non_signaling_thread_ = true;
}
gathering_state_ = state;
++gathering_state_signal_count_;
}
void OnCandidatesGathered(const std::string& transport_name,
const Candidates& candidates) {
if (!signaling_thread_->IsCurrent()) {
signaled_on_non_signaling_thread_ = true;
}
candidates_[transport_name].insert(candidates_[transport_name].end(),
candidates.begin(), candidates.end());
++candidates_signal_count_;
}
// JsepTransportController::Observer overrides.
bool OnTransportChanged(
const std::string& mid,
RtpTransportInternal* rtp_transport,
rtc::scoped_refptr<DtlsTransport> dtls_transport,
DataChannelTransportInterface* data_channel_transport) override {
changed_rtp_transport_by_mid_[mid] = rtp_transport;
if (dtls_transport) {
changed_dtls_transport_by_mid_[mid] = dtls_transport->internal();
} else {
changed_dtls_transport_by_mid_[mid] = nullptr;
}
return true;
}
// Information received from signals from transport controller.
cricket::IceConnectionState connection_state_ =
cricket::kIceConnectionConnecting;
PeerConnectionInterface::IceConnectionState ice_connection_state_ =
PeerConnectionInterface::kIceConnectionNew;
PeerConnectionInterface::PeerConnectionState combined_connection_state_ =
PeerConnectionInterface::PeerConnectionState::kNew;
bool receiving_ = false;
cricket::IceGatheringState gathering_state_ = cricket::kIceGatheringNew;
// transport_name => candidates
std::map<std::string, Candidates> candidates_;
// Counts of each signal emitted.
int connection_state_signal_count_ = 0;
int ice_connection_state_signal_count_ = 0;
int combined_connection_state_signal_count_ = 0;
int receiving_signal_count_ = 0;
int gathering_state_signal_count_ = 0;
int candidates_signal_count_ = 0;
// |network_thread_| should be destroyed after |transport_controller_|
std::unique_ptr<rtc::Thread> network_thread_;
std::unique_ptr<FakeIceTransportFactory> fake_ice_transport_factory_;
std::unique_ptr<FakeDtlsTransportFactory> fake_dtls_transport_factory_;
rtc::Thread* const signaling_thread_ = nullptr;
bool signaled_on_non_signaling_thread_ = false;
// Used to verify the SignalRtpTransportChanged/SignalDtlsTransportChanged are
// signaled correctly.
std::map<std::string, RtpTransportInternal*> changed_rtp_transport_by_mid_;
std::map<std::string, cricket::DtlsTransportInternal*>
changed_dtls_transport_by_mid_;
// Transport controller needs to be destroyed first, because it may issue
// callbacks that modify the changed_*_by_mid in the destructor.
std::unique_ptr<JsepTransportController> transport_controller_;
};
TEST_F(JsepTransportControllerTest, GetRtpTransport) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto audio_rtp_transport = transport_controller_->GetRtpTransport(kAudioMid1);
auto video_rtp_transport = transport_controller_->GetRtpTransport(kVideoMid1);
EXPECT_NE(nullptr, audio_rtp_transport);
EXPECT_NE(nullptr, video_rtp_transport);
EXPECT_NE(audio_rtp_transport, video_rtp_transport);
// Return nullptr for non-existing ones.
EXPECT_EQ(nullptr, transport_controller_->GetRtpTransport(kAudioMid2));
}
TEST_F(JsepTransportControllerTest, GetDtlsTransport) {
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyNegotiate;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
EXPECT_NE(nullptr, transport_controller_->GetDtlsTransport(kAudioMid1));
EXPECT_NE(nullptr, transport_controller_->GetRtcpDtlsTransport(kAudioMid1));
EXPECT_NE(nullptr,
transport_controller_->LookupDtlsTransportByMid(kAudioMid1));
EXPECT_NE(nullptr, transport_controller_->GetDtlsTransport(kVideoMid1));
EXPECT_NE(nullptr, transport_controller_->GetRtcpDtlsTransport(kVideoMid1));
EXPECT_NE(nullptr,
transport_controller_->LookupDtlsTransportByMid(kVideoMid1));
// Lookup for all MIDs should return different transports (no bundle)
EXPECT_NE(transport_controller_->LookupDtlsTransportByMid(kAudioMid1),
transport_controller_->LookupDtlsTransportByMid(kVideoMid1));
// Return nullptr for non-existing ones.
EXPECT_EQ(nullptr, transport_controller_->GetDtlsTransport(kVideoMid2));
EXPECT_EQ(nullptr, transport_controller_->GetRtcpDtlsTransport(kVideoMid2));
EXPECT_EQ(nullptr,
transport_controller_->LookupDtlsTransportByMid(kVideoMid2));
// Take a pointer to a transport, shut down the transport controller,
// and verify that the resulting container is empty.
auto dtls_transport =
transport_controller_->LookupDtlsTransportByMid(kVideoMid1);
webrtc::DtlsTransport* my_transport =
static_cast<DtlsTransport*>(dtls_transport.get());
EXPECT_NE(nullptr, my_transport->internal());
transport_controller_.reset();
EXPECT_EQ(nullptr, my_transport->internal());
}
TEST_F(JsepTransportControllerTest, GetDtlsTransportWithRtcpMux) {
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
EXPECT_NE(nullptr, transport_controller_->GetDtlsTransport(kAudioMid1));
EXPECT_EQ(nullptr, transport_controller_->GetRtcpDtlsTransport(kAudioMid1));
EXPECT_NE(nullptr, transport_controller_->GetDtlsTransport(kVideoMid1));
EXPECT_EQ(nullptr, transport_controller_->GetRtcpDtlsTransport(kVideoMid1));
}
TEST_F(JsepTransportControllerTest,
DtlsIsStillCreatedIfDatagramTransportIsOnlyUsedForDataChannels) {
FakeMediaTransportFactory fake_media_transport_factory("transport_params");
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_datagram_transport_for_data_channels = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundledData();
AddCryptoSettings(description.get());
absl::optional<cricket::OpaqueTransportParameters> params =
transport_controller_->GetTransportParameters(kAudioMid1);
for (auto& info : description->transport_infos()) {
info.description.opaque_parameters = params;
}
for (cricket::ContentInfo& content_info : description->contents()) {
if (content_info.media_description()->type() == cricket::MEDIA_TYPE_DATA) {
content_info.media_description()->set_alt_protocol(params->protocol);
}
}
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, description.get())
.ok());
FakeDatagramTransport* datagram_transport =
static_cast<FakeDatagramTransport*>(
transport_controller_->GetDataChannelTransport(kAudioMid1));
ASSERT_NE(nullptr, datagram_transport);
EXPECT_EQ(cricket::ICE_CANDIDATE_COMPONENT_RTP,
transport_controller_->GetDtlsTransport(kAudioMid1)->component())
<< "Datagram transport for media was not enabled, and so DTLS transport "
"should be created.";
// Datagram transport is not used for media, so no max packet size is
// specified.
EXPECT_EQ(transport_controller_->GetMediaTransportConfig(kAudioMid1)
.rtp_max_packet_size,
absl::nullopt);
// Since datagram transport is not used for RTP, setting it to writable should
// not make the RTP transport writable.
datagram_transport->set_state(MediaTransportState::kWritable);
EXPECT_FALSE(transport_controller_->GetRtpTransport(kAudioMid1)
->IsWritable(/*rtcp=*/false));
}
// An offer that bundles different alt-protocols should be rejected.
TEST_F(JsepTransportControllerTest, CannotBundleDifferentAltProtocols) {
FakeMediaTransportFactory fake_media_transport_factory("transport_params");
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_datagram_transport = true;
config.use_datagram_transport_for_data_channels = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundledData();
AddCryptoSettings(description.get());
absl::optional<cricket::OpaqueTransportParameters> params =
transport_controller_->GetTransportParameters(kAudioMid1);
for (auto& info : description->transport_infos()) {
info.description.opaque_parameters = params;
}
// Append a different alt-protocol to each of the sections.
for (cricket::ContentInfo& content_info : description->contents()) {
content_info.media_description()->set_alt_protocol(params->protocol + "-" +
content_info.name);
}
EXPECT_FALSE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
EXPECT_FALSE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, description.get())
.ok());
}
TEST_F(JsepTransportControllerTest, SetIceConfig) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
transport_controller_->SetIceConfig(
CreateIceConfig(kTimeout, cricket::GATHER_CONTINUALLY));
FakeDtlsTransport* fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
ASSERT_NE(nullptr, fake_audio_dtls);
EXPECT_EQ(kTimeout,
fake_audio_dtls->fake_ice_transport()->receiving_timeout());
EXPECT_TRUE(fake_audio_dtls->fake_ice_transport()->gather_continually());
// Test that value stored in controller is applied to new transports.
AddAudioSection(description.get(), kAudioMid2, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid2));
ASSERT_NE(nullptr, fake_audio_dtls);
EXPECT_EQ(kTimeout,
fake_audio_dtls->fake_ice_transport()->receiving_timeout());
EXPECT_TRUE(fake_audio_dtls->fake_ice_transport()->gather_continually());
}
// Tests the getter and setter of the ICE restart flag.
TEST_F(JsepTransportControllerTest, NeedIceRestart) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, description.get())
.ok());
// Initially NeedsIceRestart should return false.
EXPECT_FALSE(transport_controller_->NeedsIceRestart(kAudioMid1));
EXPECT_FALSE(transport_controller_->NeedsIceRestart(kVideoMid1));
// Set the needs-ice-restart flag and verify NeedsIceRestart starts returning
// true.
transport_controller_->SetNeedsIceRestartFlag();
EXPECT_TRUE(transport_controller_->NeedsIceRestart(kAudioMid1));
EXPECT_TRUE(transport_controller_->NeedsIceRestart(kVideoMid1));
// For a nonexistent transport, false should be returned.
EXPECT_FALSE(transport_controller_->NeedsIceRestart(kVideoMid2));
// Reset the ice_ufrag/ice_pwd for audio.
auto audio_transport_info = description->GetTransportInfoByName(kAudioMid1);
audio_transport_info->description.ice_ufrag = kIceUfrag2;
audio_transport_info->description.ice_pwd = kIcePwd2;
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
// Because the ICE is only restarted for audio, NeedsIceRestart is expected to
// return false for audio and true for video.
EXPECT_FALSE(transport_controller_->NeedsIceRestart(kAudioMid1));
EXPECT_TRUE(transport_controller_->NeedsIceRestart(kVideoMid1));
}
TEST_F(JsepTransportControllerTest, MaybeStartGathering) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
// After setting the local description, we should be able to start gathering
// candidates.
transport_controller_->MaybeStartGathering();
EXPECT_EQ_WAIT(cricket::kIceGatheringGathering, gathering_state_, kTimeout);
EXPECT_EQ(1, gathering_state_signal_count_);
}
TEST_F(JsepTransportControllerTest, AddRemoveRemoteCandidates) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
transport_controller_->SetLocalDescription(SdpType::kOffer,
description.get());
transport_controller_->SetRemoteDescription(SdpType::kAnswer,
description.get());
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
ASSERT_NE(nullptr, fake_audio_dtls);
Candidates candidates;
candidates.push_back(
CreateCandidate(kAudioMid1, cricket::ICE_CANDIDATE_COMPONENT_RTP));
EXPECT_TRUE(
transport_controller_->AddRemoteCandidates(kAudioMid1, candidates).ok());
EXPECT_EQ(1U,
fake_audio_dtls->fake_ice_transport()->remote_candidates().size());
EXPECT_TRUE(transport_controller_->RemoveRemoteCandidates(candidates).ok());
EXPECT_EQ(0U,
fake_audio_dtls->fake_ice_transport()->remote_candidates().size());
}
TEST_F(JsepTransportControllerTest, SetAndGetLocalCertificate) {
CreateJsepTransportController(JsepTransportController::Config());
rtc::scoped_refptr<rtc::RTCCertificate> certificate1 =
rtc::RTCCertificate::Create(
rtc::SSLIdentity::Create("session1", rtc::KT_DEFAULT));
rtc::scoped_refptr<rtc::RTCCertificate> returned_certificate;
auto description = std::make_unique<cricket::SessionDescription>();
AddAudioSection(description.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
certificate1);
// Apply the local certificate.
EXPECT_TRUE(transport_controller_->SetLocalCertificate(certificate1));
// Apply the local description.
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
returned_certificate = transport_controller_->GetLocalCertificate(kAudioMid1);
EXPECT_TRUE(returned_certificate);
EXPECT_EQ(certificate1->identity()->certificate().ToPEMString(),
returned_certificate->identity()->certificate().ToPEMString());
// Should fail if called for a nonexistant transport.
EXPECT_EQ(nullptr, transport_controller_->GetLocalCertificate(kVideoMid1));
// Shouldn't be able to change the identity once set.
rtc::scoped_refptr<rtc::RTCCertificate> certificate2 =
rtc::RTCCertificate::Create(
rtc::SSLIdentity::Create("session2", rtc::KT_DEFAULT));
EXPECT_FALSE(transport_controller_->SetLocalCertificate(certificate2));
}
TEST_F(JsepTransportControllerTest, GetRemoteSSLCertChain) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
rtc::FakeSSLCertificate fake_certificate("fake_data");
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
fake_audio_dtls->SetRemoteSSLCertificate(&fake_certificate);
std::unique_ptr<rtc::SSLCertChain> returned_cert_chain =
transport_controller_->GetRemoteSSLCertChain(kAudioMid1);
ASSERT_TRUE(returned_cert_chain);
ASSERT_EQ(1u, returned_cert_chain->GetSize());
EXPECT_EQ(fake_certificate.ToPEMString(),
returned_cert_chain->Get(0).ToPEMString());
// Should fail if called for a nonexistant transport.
EXPECT_FALSE(transport_controller_->GetRemoteSSLCertChain(kAudioMid2));
}
TEST_F(JsepTransportControllerTest, GetDtlsRole) {
CreateJsepTransportController(JsepTransportController::Config());
auto offer_certificate = rtc::RTCCertificate::Create(
rtc::SSLIdentity::Create("offer", rtc::KT_DEFAULT));
auto answer_certificate = rtc::RTCCertificate::Create(
rtc::SSLIdentity::Create("answer", rtc::KT_DEFAULT));
transport_controller_->SetLocalCertificate(offer_certificate);
auto offer_desc = std::make_unique<cricket::SessionDescription>();
AddAudioSection(offer_desc.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
offer_certificate);
auto answer_desc = std::make_unique<cricket::SessionDescription>();
AddAudioSection(answer_desc.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
answer_certificate);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, offer_desc.get())
.ok());
absl::optional<rtc::SSLRole> role =
transport_controller_->GetDtlsRole(kAudioMid1);
// The DTLS role is not decided yet.
EXPECT_FALSE(role);
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, answer_desc.get())
.ok());
role = transport_controller_->GetDtlsRole(kAudioMid1);
ASSERT_TRUE(role);
EXPECT_EQ(rtc::SSL_CLIENT, *role);
}
TEST_F(JsepTransportControllerTest, GetStats) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
cricket::TransportStats stats;
EXPECT_TRUE(transport_controller_->GetStats(kAudioMid1, &stats));
EXPECT_EQ(kAudioMid1, stats.transport_name);
EXPECT_EQ(1u, stats.channel_stats.size());
// Return false for non-existing transport.
EXPECT_FALSE(transport_controller_->GetStats(kAudioMid2, &stats));
}
TEST_F(JsepTransportControllerTest, SignalConnectionStateFailed) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto fake_ice = static_cast<cricket::FakeIceTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1)->ice_transport());
fake_ice->SetCandidatesGatheringComplete();
fake_ice->SetConnectionCount(1);
// The connection stats will be failed if there is no active connection.
fake_ice->SetConnectionCount(0);
EXPECT_EQ_WAIT(cricket::kIceConnectionFailed, connection_state_, kTimeout);
EXPECT_EQ(1, connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionFailed,
ice_connection_state_, kTimeout);
EXPECT_EQ(1, ice_connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::PeerConnectionState::kFailed,
combined_connection_state_, kTimeout);
EXPECT_EQ(1, combined_connection_state_signal_count_);
}
TEST_F(JsepTransportControllerTest,
SignalConnectionStateConnectedNoMediaTransport) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
auto fake_video_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1));
// First, have one transport connect, and another fail, to ensure that
// the first transport connecting didn't trigger a "connected" state signal.
// We should only get a signal when all are connected.
fake_audio_dtls->fake_ice_transport()->SetConnectionCount(1);
fake_audio_dtls->SetWritable(true);
fake_audio_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
// Decrease the number of the connection to trigger the signal.
fake_video_dtls->fake_ice_transport()->SetConnectionCount(1);
fake_video_dtls->fake_ice_transport()->SetConnectionCount(0);
fake_video_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
EXPECT_EQ_WAIT(cricket::kIceConnectionFailed, connection_state_, kTimeout);
EXPECT_EQ(1, connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionFailed,
ice_connection_state_, kTimeout);
EXPECT_EQ(2, ice_connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::PeerConnectionState::kFailed,
combined_connection_state_, kTimeout);
EXPECT_EQ(2, combined_connection_state_signal_count_);
fake_audio_dtls->SetDtlsState(cricket::DTLS_TRANSPORT_CONNECTED);
fake_video_dtls->SetDtlsState(cricket::DTLS_TRANSPORT_CONNECTED);
// Set the connection count to be 2 and the cricket::FakeIceTransport will set
// the transport state to be STATE_CONNECTING.
fake_video_dtls->fake_ice_transport()->SetConnectionCount(2);
fake_video_dtls->SetWritable(true);
EXPECT_EQ_WAIT(cricket::kIceConnectionConnected, connection_state_, kTimeout);
EXPECT_EQ(2, connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionConnected,
ice_connection_state_, kTimeout);
EXPECT_EQ(3, ice_connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::PeerConnectionState::kConnected,
combined_connection_state_, kTimeout);
EXPECT_EQ(3, combined_connection_state_signal_count_);
}
TEST_F(JsepTransportControllerTest, SignalConnectionStateComplete) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
auto fake_video_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1));
// First, have one transport connect, and another fail, to ensure that
// the first transport connecting didn't trigger a "connected" state signal.
// We should only get a signal when all are connected.
fake_audio_dtls->fake_ice_transport()->SetTransportState(
IceTransportState::kCompleted,
cricket::IceTransportState::STATE_COMPLETED);
fake_audio_dtls->SetWritable(true);
fake_audio_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionChecking,
ice_connection_state_, kTimeout);
EXPECT_EQ(1, ice_connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::PeerConnectionState::kConnecting,
combined_connection_state_, kTimeout);
EXPECT_EQ(1, combined_connection_state_signal_count_);
fake_video_dtls->fake_ice_transport()->SetTransportState(
IceTransportState::kFailed, cricket::IceTransportState::STATE_FAILED);
fake_video_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
EXPECT_EQ_WAIT(cricket::kIceConnectionFailed, connection_state_, kTimeout);
EXPECT_EQ(1, connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionFailed,
ice_connection_state_, kTimeout);
EXPECT_EQ(2, ice_connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::PeerConnectionState::kFailed,
combined_connection_state_, kTimeout);
EXPECT_EQ(2, combined_connection_state_signal_count_);
fake_audio_dtls->SetDtlsState(cricket::DTLS_TRANSPORT_CONNECTED);
fake_video_dtls->SetDtlsState(cricket::DTLS_TRANSPORT_CONNECTED);
// Set the connection count to be 1 and the cricket::FakeIceTransport will set
// the transport state to be STATE_COMPLETED.
fake_video_dtls->fake_ice_transport()->SetTransportState(
IceTransportState::kCompleted,
cricket::IceTransportState::STATE_COMPLETED);
fake_video_dtls->SetWritable(true);
EXPECT_EQ_WAIT(cricket::kIceConnectionCompleted, connection_state_, kTimeout);
EXPECT_EQ(3, connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionCompleted,
ice_connection_state_, kTimeout);
EXPECT_EQ(3, ice_connection_state_signal_count_);
EXPECT_EQ_WAIT(PeerConnectionInterface::PeerConnectionState::kConnected,
combined_connection_state_, kTimeout);
EXPECT_EQ(3, combined_connection_state_signal_count_);
}
TEST_F(JsepTransportControllerTest, SignalIceGatheringStateGathering) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
fake_audio_dtls->fake_ice_transport()->MaybeStartGathering();
// Should be in the gathering state as soon as any transport starts gathering.
EXPECT_EQ_WAIT(cricket::kIceGatheringGathering, gathering_state_, kTimeout);
EXPECT_EQ(1, gathering_state_signal_count_);
}
TEST_F(JsepTransportControllerTest, SignalIceGatheringStateComplete) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithoutBundle();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
auto fake_video_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1));
fake_audio_dtls->fake_ice_transport()->MaybeStartGathering();
EXPECT_EQ_WAIT(cricket::kIceGatheringGathering, gathering_state_, kTimeout);
EXPECT_EQ(1, gathering_state_signal_count_);
// Have one transport finish gathering, to make sure gathering
// completion wasn't signalled if only one transport finished gathering.
fake_audio_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
EXPECT_EQ(1, gathering_state_signal_count_);
fake_video_dtls->fake_ice_transport()->MaybeStartGathering();
EXPECT_EQ_WAIT(cricket::kIceGatheringGathering, gathering_state_, kTimeout);
EXPECT_EQ(1, gathering_state_signal_count_);
fake_video_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
EXPECT_EQ_WAIT(cricket::kIceGatheringComplete, gathering_state_, kTimeout);
EXPECT_EQ(2, gathering_state_signal_count_);
}
// Test that when the last transport that hasn't finished connecting and/or
// gathering is destroyed, the aggregate state jumps to "completed". This can
// happen if, for example, we have an audio and video transport, the audio
// transport completes, then we start bundling video on the audio transport.
TEST_F(JsepTransportControllerTest,
SignalingWhenLastIncompleteTransportDestroyed) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
auto fake_video_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1));
EXPECT_NE(fake_audio_dtls, fake_video_dtls);
fake_audio_dtls->fake_ice_transport()->MaybeStartGathering();
EXPECT_EQ_WAIT(cricket::kIceGatheringGathering, gathering_state_, kTimeout);
EXPECT_EQ(1, gathering_state_signal_count_);
// Let the audio transport complete.
fake_audio_dtls->SetWritable(true);
fake_audio_dtls->fake_ice_transport()->SetCandidatesGatheringComplete();
fake_audio_dtls->fake_ice_transport()->SetConnectionCount(1);
fake_audio_dtls->SetDtlsState(cricket::DTLS_TRANSPORT_CONNECTED);
EXPECT_EQ(1, gathering_state_signal_count_);
// Set the remote description and enable the bundle.
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, description.get())
.ok());
// The BUNDLE should be enabled, the incomplete video transport should be
// deleted and the states shoud be updated.
fake_video_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1));
EXPECT_EQ(fake_audio_dtls, fake_video_dtls);
EXPECT_EQ_WAIT(cricket::kIceConnectionCompleted, connection_state_, kTimeout);
EXPECT_EQ(PeerConnectionInterface::kIceConnectionCompleted,
ice_connection_state_);
EXPECT_EQ(PeerConnectionInterface::PeerConnectionState::kConnected,
combined_connection_state_);
EXPECT_EQ_WAIT(cricket::kIceGatheringComplete, gathering_state_, kTimeout);
EXPECT_EQ(2, gathering_state_signal_count_);
}
TEST_F(JsepTransportControllerTest, SignalCandidatesGathered) {
CreateJsepTransportController(JsepTransportController::Config());
auto description = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
transport_controller_->MaybeStartGathering();
auto fake_audio_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
fake_audio_dtls->fake_ice_transport()->SignalCandidateGathered(
fake_audio_dtls->fake_ice_transport(), CreateCandidate(kAudioMid1, 1));
EXPECT_EQ_WAIT(1, candidates_signal_count_, kTimeout);
EXPECT_EQ(1u, candidates_[kAudioMid1].size());
}
TEST_F(JsepTransportControllerTest, IceSignalingOccursOnSignalingThread) {
network_thread_ = rtc::Thread::CreateWithSocketServer();
network_thread_->Start();
CreateJsepTransportController(JsepTransportController::Config(),
signaling_thread_, network_thread_.get(),
/*port_allocator=*/nullptr);
CreateLocalDescriptionAndCompleteConnectionOnNetworkThread();
// connecting --> connected --> completed
EXPECT_EQ_WAIT(cricket::kIceConnectionCompleted, connection_state_, kTimeout);
EXPECT_EQ(2, connection_state_signal_count_);
// new --> gathering --> complete
EXPECT_EQ_WAIT(cricket::kIceGatheringComplete, gathering_state_, kTimeout);
EXPECT_EQ(2, gathering_state_signal_count_);
EXPECT_EQ_WAIT(1u, candidates_[kAudioMid1].size(), kTimeout);
EXPECT_EQ_WAIT(1u, candidates_[kVideoMid1].size(), kTimeout);
EXPECT_EQ(2, candidates_signal_count_);
EXPECT_TRUE(!signaled_on_non_signaling_thread_);
}
// Test that if the TransportController was created with the
// |redetermine_role_on_ice_restart| parameter set to false, the role is *not*
// redetermined on an ICE restart.
TEST_F(JsepTransportControllerTest, IceRoleNotRedetermined) {
JsepTransportController::Config config;
config.redetermine_role_on_ice_restart = false;
CreateJsepTransportController(config);
// Let the |transport_controller_| be the controlled side initially.
auto remote_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto local_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_answer.get(), kAudioMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, remote_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kAnswer, local_answer.get())
.ok());
auto fake_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
EXPECT_EQ(cricket::ICEROLE_CONTROLLED,
fake_dtls->fake_ice_transport()->GetIceRole());
// New offer will trigger the ICE restart.
auto restart_local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(restart_local_offer.get(), kAudioMid1, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
EXPECT_TRUE(
transport_controller_
->SetLocalDescription(SdpType::kOffer, restart_local_offer.get())
.ok());
EXPECT_EQ(cricket::ICEROLE_CONTROLLED,
fake_dtls->fake_ice_transport()->GetIceRole());
}
// Tests ICE-Lite mode in remote answer.
TEST_F(JsepTransportControllerTest, SetIceRoleWhenIceLiteInRemoteAnswer) {
CreateJsepTransportController(JsepTransportController::Config());
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
auto fake_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING,
fake_dtls->fake_ice_transport()->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_FULL,
fake_dtls->fake_ice_transport()->remote_ice_mode());
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_LITE, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING,
fake_dtls->fake_ice_transport()->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_LITE,
fake_dtls->fake_ice_transport()->remote_ice_mode());
}
// Tests that the ICE role remains "controlling" if a subsequent offer that
// does an ICE restart is received from an ICE lite endpoint. Regression test
// for: https://crbug.com/710760
TEST_F(JsepTransportControllerTest,
IceRoleIsControllingAfterIceRestartFromIceLiteEndpoint) {
CreateJsepTransportController(JsepTransportController::Config());
auto remote_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_LITE, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto local_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_answer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
// Initial Offer/Answer exchange. If the remote offerer is ICE-Lite, then the
// local side is the controlling.
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, remote_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kAnswer, local_answer.get())
.ok());
auto fake_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING,
fake_dtls->fake_ice_transport()->GetIceRole());
// In the subsequence remote offer triggers an ICE restart.
auto remote_offer2 = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_offer2.get(), kAudioMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_LITE, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto local_answer2 = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_answer2.get(), kAudioMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, remote_offer2.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kAnswer, local_answer2.get())
.ok());
fake_dtls = static_cast<FakeDtlsTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1));
// The local side is still the controlling role since the remote side is using
// ICE-Lite.
EXPECT_EQ(cricket::ICEROLE_CONTROLLING,
fake_dtls->fake_ice_transport()->GetIceRole());
}
// Tests that the SDP has more than one audio/video m= sections.
TEST_F(JsepTransportControllerTest, MultipleMediaSectionsOfSameTypeWithBundle) {
CreateJsepTransportController(JsepTransportController::Config());
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kAudioMid2);
bundle_group.AddContentName(kVideoMid1);
bundle_group.AddContentName(kDataMid1);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddAudioSection(local_offer.get(), kAudioMid2, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddVideoSection(local_offer.get(), kVideoMid1, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddDataSection(local_offer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddAudioSection(remote_answer.get(), kAudioMid2, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddVideoSection(remote_answer.get(), kVideoMid1, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddDataSection(remote_answer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
local_offer->AddGroup(bundle_group);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
// Verify that all the sections are bundled on kAudio1.
auto transport1 = transport_controller_->GetRtpTransport(kAudioMid1);
auto transport2 = transport_controller_->GetRtpTransport(kAudioMid2);
auto transport3 = transport_controller_->GetRtpTransport(kVideoMid1);
auto transport4 = transport_controller_->GetRtpTransport(kDataMid1);
EXPECT_EQ(transport1, transport2);
EXPECT_EQ(transport1, transport3);
EXPECT_EQ(transport1, transport4);
EXPECT_EQ(transport_controller_->LookupDtlsTransportByMid(kAudioMid1),
transport_controller_->LookupDtlsTransportByMid(kVideoMid1));
// Verify the OnRtpTransport/DtlsTransportChanged signals are fired correctly.
auto it = changed_rtp_transport_by_mid_.find(kAudioMid2);
ASSERT_TRUE(it != changed_rtp_transport_by_mid_.end());
EXPECT_EQ(transport1, it->second);
it = changed_rtp_transport_by_mid_.find(kAudioMid2);
ASSERT_TRUE(it != changed_rtp_transport_by_mid_.end());
EXPECT_EQ(transport1, it->second);
it = changed_rtp_transport_by_mid_.find(kVideoMid1);
ASSERT_TRUE(it != changed_rtp_transport_by_mid_.end());
EXPECT_EQ(transport1, it->second);
// Verify the DtlsTransport for the SCTP data channel is reset correctly.
auto it2 = changed_dtls_transport_by_mid_.find(kDataMid1);
ASSERT_TRUE(it2 != changed_dtls_transport_by_mid_.end());
}
// Tests that only a subset of all the m= sections are bundled.
TEST_F(JsepTransportControllerTest, BundleSubsetOfMediaSections) {
CreateJsepTransportController(JsepTransportController::Config());
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kVideoMid1);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddAudioSection(local_offer.get(), kAudioMid2, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddVideoSection(local_offer.get(), kVideoMid1, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddAudioSection(remote_answer.get(), kAudioMid2, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddVideoSection(remote_answer.get(), kVideoMid1, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
local_offer->AddGroup(bundle_group);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
// Verifiy that only |kAudio1| and |kVideo1| are bundled.
auto transport1 = transport_controller_->GetRtpTransport(kAudioMid1);
auto transport2 = transport_controller_->GetRtpTransport(kAudioMid2);
auto transport3 = transport_controller_->GetRtpTransport(kVideoMid1);
EXPECT_NE(transport1, transport2);
EXPECT_EQ(transport1, transport3);
auto it = changed_rtp_transport_by_mid_.find(kVideoMid1);
ASSERT_TRUE(it != changed_rtp_transport_by_mid_.end());
EXPECT_EQ(transport1, it->second);
it = changed_rtp_transport_by_mid_.find(kAudioMid2);
EXPECT_TRUE(transport2 == it->second);
}
// Tests that the initial offer/answer only have data section and audio/video
// sections are added in the subsequent offer.
TEST_F(JsepTransportControllerTest, BundleOnDataSectionInSubsequentOffer) {
CreateJsepTransportController(JsepTransportController::Config());
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kDataMid1);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddDataSection(local_offer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddDataSection(remote_answer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
local_offer->AddGroup(bundle_group);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
auto data_transport = transport_controller_->GetRtpTransport(kDataMid1);
// Add audio/video sections in subsequent offer.
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddVideoSection(local_offer.get(), kVideoMid1, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddVideoSection(remote_answer.get(), kVideoMid1, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
// Reset the bundle group and do another offer/answer exchange.
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kVideoMid1);
local_offer->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
remote_answer->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
local_offer->AddGroup(bundle_group);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
auto audio_transport = transport_controller_->GetRtpTransport(kAudioMid1);
auto video_transport = transport_controller_->GetRtpTransport(kVideoMid1);
EXPECT_EQ(data_transport, audio_transport);
EXPECT_EQ(data_transport, video_transport);
}
TEST_F(JsepTransportControllerTest, VideoDataRejectedInAnswer) {
CreateJsepTransportController(JsepTransportController::Config());
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kVideoMid1);
bundle_group.AddContentName(kDataMid1);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddVideoSection(local_offer.get(), kVideoMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddDataSection(local_offer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddVideoSection(remote_answer.get(), kVideoMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddDataSection(remote_answer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
// Reject video and data section.
remote_answer->contents()[1].rejected = true;
remote_answer->contents()[2].rejected = true;
local_offer->AddGroup(bundle_group);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
// Verify the RtpTransport/DtlsTransport is destroyed correctly.
EXPECT_EQ(nullptr, transport_controller_->GetRtpTransport(kVideoMid1));
EXPECT_EQ(nullptr, transport_controller_->GetDtlsTransport(kDataMid1));
// Verify the signals are fired correctly.
auto it = changed_rtp_transport_by_mid_.find(kVideoMid1);
ASSERT_TRUE(it != changed_rtp_transport_by_mid_.end());
EXPECT_EQ(nullptr, it->second);
auto it2 = changed_dtls_transport_by_mid_.find(kDataMid1);
ASSERT_TRUE(it2 != changed_dtls_transport_by_mid_.end());
EXPECT_EQ(nullptr, it2->second);
}
// Tests that changing the bundled MID in subsequent offer/answer exchange is
// not supported.
// TODO(bugs.webrtc.org/6704): Change this test to expect success once issue is
// fixed
TEST_F(JsepTransportControllerTest, ChangeBundledMidNotSupported) {
CreateJsepTransportController(JsepTransportController::Config());
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kVideoMid1);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddVideoSection(local_offer.get(), kVideoMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddVideoSection(remote_answer.get(), kVideoMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
local_offer->AddGroup(bundle_group);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
EXPECT_EQ(transport_controller_->GetRtpTransport(kAudioMid1),
transport_controller_->GetRtpTransport(kVideoMid1));
// Reorder the bundle group.
EXPECT_TRUE(bundle_group.RemoveContentName(kAudioMid1));
bundle_group.AddContentName(kAudioMid1);
// The answerer uses the new bundle group and now the bundle mid is changed to
// |kVideo1|.
remote_answer->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_FALSE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
}
// Test that rejecting only the first m= section of a BUNDLE group is treated as
// an error, but rejecting all of them works as expected.
TEST_F(JsepTransportControllerTest, RejectFirstContentInBundleGroup) {
CreateJsepTransportController(JsepTransportController::Config());
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
bundle_group.AddContentName(kVideoMid1);
bundle_group.AddContentName(kDataMid1);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddVideoSection(local_offer.get(), kVideoMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
AddDataSection(local_offer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddVideoSection(remote_answer.get(), kVideoMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
AddDataSection(remote_answer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag3, kIcePwd3,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
// Reject audio content in answer.
remote_answer->contents()[0].rejected = true;
local_offer->AddGroup(bundle_group);
remote_answer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_FALSE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
// Reject all the contents.
remote_answer->contents()[1].rejected = true;
remote_answer->contents()[2].rejected = true;
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
EXPECT_EQ(nullptr, transport_controller_->GetRtpTransport(kAudioMid1));
EXPECT_EQ(nullptr, transport_controller_->GetRtpTransport(kVideoMid1));
EXPECT_EQ(nullptr, transport_controller_->GetDtlsTransport(kDataMid1));
}
// Tests that applying non-RTCP-mux offer would fail when kRtcpMuxPolicyRequire
// is used.
TEST_F(JsepTransportControllerTest, ApplyNonRtcpMuxOfferWhenMuxingRequired) {
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
CreateJsepTransportController(config);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
local_offer->contents()[0].media_description()->set_rtcp_mux(false);
// Applying a non-RTCP-mux offer is expected to fail.
EXPECT_FALSE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
}
// Tests that applying non-RTCP-mux answer would fail when kRtcpMuxPolicyRequire
// is used.
TEST_F(JsepTransportControllerTest, ApplyNonRtcpMuxAnswerWhenMuxingRequired) {
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
CreateJsepTransportController(config);
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
auto remote_answer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_answer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_PASSIVE,
nullptr);
// Applying a non-RTCP-mux answer is expected to fail.
remote_answer->contents()[0].media_description()->set_rtcp_mux(false);
EXPECT_FALSE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
}
// This tests that the BUNDLE group in answer should be a subset of the offered
// group.
TEST_F(JsepTransportControllerTest,
AddContentToBundleGroupInAnswerNotSupported) {
CreateJsepTransportController(JsepTransportController::Config());
auto local_offer = CreateSessionDescriptionWithoutBundle();
auto remote_answer = CreateSessionDescriptionWithoutBundle();
cricket::ContentGroup offer_bundle_group(cricket::GROUP_TYPE_BUNDLE);
offer_bundle_group.AddContentName(kAudioMid1);
local_offer->AddGroup(offer_bundle_group);
cricket::ContentGroup answer_bundle_group(cricket::GROUP_TYPE_BUNDLE);
answer_bundle_group.AddContentName(kAudioMid1);
answer_bundle_group.AddContentName(kVideoMid1);
remote_answer->AddGroup(answer_bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_FALSE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
}
// This tests that the BUNDLE group with non-existing MID should be rejectd.
TEST_F(JsepTransportControllerTest, RejectBundleGroupWithNonExistingMid) {
CreateJsepTransportController(JsepTransportController::Config());
auto local_offer = CreateSessionDescriptionWithoutBundle();
auto remote_answer = CreateSessionDescriptionWithoutBundle();
cricket::ContentGroup invalid_bundle_group(cricket::GROUP_TYPE_BUNDLE);
// The BUNDLE group is invalid because there is no data section in the
// description.
invalid_bundle_group.AddContentName(kDataMid1);
local_offer->AddGroup(invalid_bundle_group);
remote_answer->AddGroup(invalid_bundle_group);
EXPECT_FALSE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_FALSE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
}
// This tests that an answer shouldn't be able to remove an m= section from an
// established group without rejecting it.
TEST_F(JsepTransportControllerTest, RemoveContentFromBundleGroup) {
CreateJsepTransportController(JsepTransportController::Config());
auto local_offer = CreateSessionDescriptionWithBundleGroup();
auto remote_answer = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
// Do an re-offer/answer.
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
auto new_answer = CreateSessionDescriptionWithoutBundle();
cricket::ContentGroup new_bundle_group(cricket::GROUP_TYPE_BUNDLE);
// The answer removes video from the BUNDLE group without rejecting it is
// invalid.
new_bundle_group.AddContentName(kAudioMid1);
new_answer->AddGroup(new_bundle_group);
// Applying invalid answer is expected to fail.
EXPECT_FALSE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, new_answer.get())
.ok());
// Rejected the video content.
auto video_content = new_answer->GetContentByName(kVideoMid1);
ASSERT_TRUE(video_content);
video_content->rejected = true;
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, new_answer.get())
.ok());
}
// Test that the JsepTransportController can process a new local and remote
// description that changes the tagged BUNDLE group with the max-bundle policy
// specified.
// This is a regression test for bugs.webrtc.org/9954
TEST_F(JsepTransportControllerTest, ChangeTaggedMediaSectionMaxBundle) {
CreateJsepTransportController(JsepTransportController::Config());
auto local_offer = std::make_unique<cricket::SessionDescription>();
AddAudioSection(local_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
cricket::ContentGroup bundle_group(cricket::GROUP_TYPE_BUNDLE);
bundle_group.AddContentName(kAudioMid1);
local_offer->AddGroup(bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_offer.get())
.ok());
std::unique_ptr<cricket::SessionDescription> remote_answer(
local_offer->Clone());
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_answer.get())
.ok());
std::unique_ptr<cricket::SessionDescription> local_reoffer(
local_offer->Clone());
local_reoffer->contents()[0].rejected = true;
AddVideoSection(local_reoffer.get(), kVideoMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
local_reoffer->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
cricket::ContentGroup new_bundle_group(cricket::GROUP_TYPE_BUNDLE);
new_bundle_group.AddContentName(kVideoMid1);
local_reoffer->AddGroup(new_bundle_group);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, local_reoffer.get())
.ok());
std::unique_ptr<cricket::SessionDescription> remote_reanswer(
local_reoffer->Clone());
EXPECT_TRUE(
transport_controller_
->SetRemoteDescription(SdpType::kAnswer, remote_reanswer.get())
.ok());
}
constexpr char kFakeTransportParameters[] = "fake-params";
// Test fixture that provides common setup and helpers for tests related to the
// datagram transport.
class JsepTransportControllerDatagramTest
: public JsepTransportControllerTest,
public testing::WithParamInterface<bool> {
public:
JsepTransportControllerDatagramTest()
: JsepTransportControllerTest(),
fake_media_transport_factory_(kFakeTransportParameters) {
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory_;
config.use_datagram_transport = true;
CreateJsepTransportController(config);
}
// Whether the JsepTransportController under test acts as the offerer or
// answerer in this test.
bool IsOfferer() { return GetParam(); }
// Sets a description as local or remote based on type and current
// perspective.
RTCError SetDescription(SdpType type,
const cricket::SessionDescription* description) {
if (IsOfferer() == (type == SdpType::kOffer)) {
return transport_controller_->SetLocalDescription(type, description);
} else {
return transport_controller_->SetRemoteDescription(type, description);
}
}
// Creates a session description with the settings necessary for datagram
// transport (bundle + crypto) and the given |transport_params|.
std::unique_ptr<cricket::SessionDescription>
CreateSessionDescriptionForDatagramTransport(
absl::optional<cricket::OpaqueTransportParameters> transport_params) {
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
for (auto& info : description->transport_infos()) {
info.description.opaque_parameters = transport_params;
}
if (transport_params) {
for (auto& content_info : description->contents()) {
content_info.media_description()->set_alt_protocol(
transport_params->protocol);
}
}
return description;
}
// Creates transport parameters with |protocol| and |parameters|
// matching what |fake_media_transport_factory_| provides.
cricket::OpaqueTransportParameters CreateTransportParameters() {
cricket::OpaqueTransportParameters params;
params.protocol = fake_media_transport_factory_.GetTransportName();
params.parameters = "fake-params";
return params;
}
protected:
FakeMediaTransportFactory fake_media_transport_factory_;
};
TEST_P(JsepTransportControllerDatagramTest, InitDatagramTransport) {
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
// Getting transport parameters is allowed before setting a description.
// This is necessary so that the offerer can include these params.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
// Setting a description activates the datagram transport without changing
// transport parameters.
auto description = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, description.get()).ok());
// After setting an offer with transport parameters, those parameters are
// reflected by the controller.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
TEST_P(JsepTransportControllerDatagramTest,
OfferMissingDatagramTransportParams) {
if (IsOfferer()) {
// This test doesn't make sense from the offerer's perspective, as the offer
// must contain datagram transport params if the offerer supports it.
return;
}
auto description =
CreateSessionDescriptionForDatagramTransport(absl::nullopt);
EXPECT_TRUE(SetDescription(SdpType::kOffer, description.get()).ok());
// The offer didn't contain any datagram transport parameters, so the answer
// won't either.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
absl::nullopt);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
absl::nullopt);
}
TEST_P(JsepTransportControllerDatagramTest, OfferHasWrongTransportName) {
if (IsOfferer()) {
// This test doesn't make sense from the offerer's perspective, as the
// offerer cannot offer itself the wrong transport.
return;
}
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
fake_params.protocol = "wrong-name";
auto description = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, description.get()).ok());
// The offerer and answerer support different datagram transports, so the
// answerer rejects the offered parameters.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
absl::nullopt);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
absl::nullopt);
}
TEST_P(JsepTransportControllerDatagramTest, IncompatibleAnswer) {
// Transport will claim that no parameters are compatible, even if they match
// exactly.
fake_media_transport_factory_.set_transport_parameters_comparison(
[](absl::string_view, absl::string_view) { return false; });
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
auto answer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, answer.get()).ok());
// The offerer and answerer have incompatible parameters, so the answerer
// rejects the offered parameters.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
absl::nullopt);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
absl::nullopt);
}
TEST_P(JsepTransportControllerDatagramTest, CompatibleAnswer) {
// Transport will claim that no parameters are compatible, even if they are
// completely different.
fake_media_transport_factory_.set_transport_parameters_comparison(
[](absl::string_view, absl::string_view) { return true; });
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
cricket::OpaqueTransportParameters answer_params;
answer_params.protocol = fake_params.protocol;
answer_params.parameters = "something different from offer";
auto answer = CreateSessionDescriptionForDatagramTransport(answer_params);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, answer.get()).ok());
// The offerer and answerer have compatible parameters, so the answerer
// accepts the offered parameters.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
TEST_P(JsepTransportControllerDatagramTest, AnswerRejectsDatagram) {
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
auto answer = CreateSessionDescriptionForDatagramTransport(absl::nullopt);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, answer.get()).ok());
// The answer rejected datagram transport, so its parameters are empty.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
absl::nullopt);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
absl::nullopt);
}
TEST_P(JsepTransportControllerDatagramTest, AnswerAcceptsDatagram) {
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
auto answer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, answer.get()).ok());
// The answer accepted datagram transport, so it is present.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
TEST_P(JsepTransportControllerDatagramTest, PrAnswerRejectsDatagram) {
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
auto answer = CreateSessionDescriptionForDatagramTransport(absl::nullopt);
EXPECT_TRUE(SetDescription(SdpType::kPrAnswer, answer.get()).ok());
// The answer rejected datagram transport, but it's provisional, so the
// transport is kept around for now.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
TEST_P(JsepTransportControllerDatagramTest, PrAnswerAcceptsDatagram) {
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
auto answer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kPrAnswer, answer.get()).ok());
// The answer provisionally accepted datagram transport, so it's kept.
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
TEST_P(JsepTransportControllerDatagramTest, RenegotiationCannotAddDatagram) {
auto offer = CreateSessionDescriptionForDatagramTransport(absl::nullopt);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
absl::nullopt);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
absl::nullopt);
auto answer = CreateSessionDescriptionForDatagramTransport(absl::nullopt);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, answer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
absl::nullopt);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
absl::nullopt);
// Attempting to add a datagram transport on a re-offer does not cause an
// error, but also does not add a datagram transport.
auto reoffer =
CreateSessionDescriptionForDatagramTransport(CreateTransportParameters());
EXPECT_TRUE(SetDescription(SdpType::kOffer, reoffer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
absl::nullopt);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
absl::nullopt);
}
TEST_P(JsepTransportControllerDatagramTest, RenegotiationCannotRemoveDatagram) {
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
auto answer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, answer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
// Attempting to remove a datagram transport on a re-offer does not cause an
// error, but also does not remove the datagram transport.
auto reoffer = CreateSessionDescriptionForDatagramTransport(absl::nullopt);
EXPECT_TRUE(SetDescription(SdpType::kOffer, reoffer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
TEST_P(JsepTransportControllerDatagramTest,
RenegotiationKeepsDatagramTransport) {
cricket::OpaqueTransportParameters fake_params = CreateTransportParameters();
if (IsOfferer()) {
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
auto offer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, offer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
auto answer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, answer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
// Attempting to remove a datagram transport on a re-offer does not cause an
// error, but also does not remove the datagram transport.
auto reoffer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kOffer, reoffer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
auto reanswer = CreateSessionDescriptionForDatagramTransport(fake_params);
EXPECT_TRUE(SetDescription(SdpType::kAnswer, reanswer.get()).ok());
EXPECT_EQ(transport_controller_->GetTransportParameters(kAudioMid1),
fake_params);
EXPECT_EQ(transport_controller_->GetTransportParameters(kVideoMid1),
fake_params);
}
INSTANTIATE_TEST_SUITE_P(
JsepTransportControllerDatagramTests,
JsepTransportControllerDatagramTest,
testing::Values(true, false),
// The parameter value is the local perspective (offerer or answerer).
[](const testing::TestParamInfo<bool>& info) {
return info.param ? "Offerer" : "Answerer";
});
} // namespace webrtc