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b689af4c995e3c96465746c470dca82c1cdece63
platform-external-webrtc/pc/jsep_transport_controller_unittest.cc
Bjorn A Mellem b689af4c99 Changes to enable use of DatagramTransport as a data channel transport. 
PeerConnection now has a new setting in RTCConfiguration to enable use of
datagram transport for data channels.  There is also a corresponding field
trial, which has both a kill-switch and a way to change the default value.

PeerConnection's interaction with MediaTransport for data channels has been
refactored to work with DataChannelTransportInterface instead.

Adds a DataChannelState and OnStateChanged() to the DataChannelSink
callbacks.  This allows PeerConnection to listen to the data channel's
state directly, instead of indirectly by monitoring media transport
state.  This is necessary to enable use of non-media-transport (eg.
datagram transport) data channel transports.

For now, PeerConnection watches the state through MediaTransport as well.
This will persist until MediaTransport implements the new callback.

Datagram transport use is negotiated.  As such, an offer that requests to use
datagram transport for data channels may be rejected by the answerer.  If the
offer includes DTLS, the data channels will be negotiated as SCTP/DTLS data
channels with an extra x-opaque parameter for datagram transport.  If the
opaque parameter is rejected (by an answerer without datagram support), the
offerer may fall back to SCTP.

If DTLS is not enabled, there is no viable fallback.  In this case, the data
channels are negotiated as media transport data channels.  If the receiver does
not understand the x-opaque line, it will reject these data channels, and the
offerer's data channels will be closed.

Bug: webrtc:9719
Change-Id: Ic1bf3664c4bcf9d754482df59897f5f72fe68fcc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/147702
Commit-Queue: Bjorn Mellem <mellem@webrtc.org>
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28932}
2019-08-21 18:47:58 +00:00

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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 "absl/memory/memory.h"
#include "api/media_transport_interface.h"
#include "api/test/fake_media_transport.h"
#include "api/test/loopback_media_transport.h"
#include "p2p/base/fake_dtls_transport.h"
#include "p2p/base/fake_ice_transport.h"
#include "p2p/base/no_op_dtls_transport.h"
#include "p2p/base/transport_factory_interface.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 FakeTransportFactory : public cricket::TransportFactoryInterface {
public:
std::unique_ptr<cricket::IceTransportInternal> CreateIceTransport(
const std::string& transport_name,
int component) override {
return absl::make_unique<cricket::FakeIceTransport>(transport_name,
component);
}
std::unique_ptr<cricket::DtlsTransportInternal> CreateDtlsTransport(
cricket::IceTransportInternal* ice,
const webrtc::CryptoOptions& crypto_options) override {
return absl::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_transport_factory_ = absl::make_unique<FakeTransportFactory>();
}
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;
// The tests only works with |fake_transport_factory|;
config.external_transport_factory = fake_transport_factory_.get();
// TODO(zstein): Provide an AsyncResolverFactory once it is required.
transport_controller_ = absl::make_unique<JsepTransportController>(
signaling_thread, network_thread, port_allocator, nullptr, 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 = absl::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;
}
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,
MediaTransportInterface* media_transport,
DataChannelTransportInterface* data_channel_transport,
JsepTransportController::NegotiationState negotiation_state) 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;
}
changed_media_transport_by_mid_[mid] = media_transport;
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<FakeTransportFactory> fake_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_;
std::map<std::string, MediaTransportInterface*>
changed_media_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));
EXPECT_EQ(nullptr, transport_controller_->GetMediaTransport(kAudioMid1));
}
TEST_F(JsepTransportControllerTest,
DtlsIsStillCreatedIfMediaTransportIsOnlyUsedForDataChannels) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
EXPECT_NE(absl::nullopt,
transport_controller_->GenerateOrGetLastMediaTransportOffer());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetDataChannelTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
// After SetLocalDescription, media transport should be created as caller.
EXPECT_TRUE(media_transport->is_caller());
EXPECT_TRUE(media_transport->pre_shared_key().has_value());
// Return nullptr for non-existing mids.
EXPECT_EQ(nullptr,
transport_controller_->GetDataChannelTransport(kVideoMid2));
EXPECT_EQ(cricket::ICE_CANDIDATE_COMPONENT_RTP,
transport_controller_->GetDtlsTransport(kAudioMid1)->component())
<< "Media transport for media was not enabled, and so DTLS transport "
"should be created.";
}
TEST_F(JsepTransportControllerTest, GetMediaTransportInCaller) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
EXPECT_NE(absl::nullopt,
transport_controller_->GenerateOrGetLastMediaTransportOffer());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
// After SetLocalDescription, media transport should be created as caller.
EXPECT_TRUE(media_transport->is_caller());
// We set the pre-shared key on the caller.
EXPECT_TRUE(media_transport->pre_shared_key().has_value());
EXPECT_TRUE(media_transport->is_connected());
// Return nullptr for non-existing mids.
EXPECT_EQ(nullptr, transport_controller_->GetMediaTransport(kVideoMid2));
EXPECT_EQ(cricket::kNoOpDtlsTransportComponent,
transport_controller_->GetDtlsTransport(kAudioMid1)->component())
<< "Because media transport is used, expected no-op DTLS transport.";
}
TEST_F(JsepTransportControllerTest,
GetMediaTransportOfferInTheConfigOnSubsequentCalls) {
FakeMediaTransportFactory fake_media_transport_factory;
WrapperMediaTransportFactory wrapping_factory(&fake_media_transport_factory);
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &wrapping_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
absl::optional<cricket::SessionDescription::MediaTransportSetting> settings =
transport_controller_->GenerateOrGetLastMediaTransportOffer();
ASSERT_NE(absl::nullopt, settings);
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
absl::optional<cricket::SessionDescription::MediaTransportSetting>
new_settings =
transport_controller_->GenerateOrGetLastMediaTransportOffer();
ASSERT_NE(absl::nullopt, new_settings);
EXPECT_EQ(settings->transport_name, new_settings->transport_name);
EXPECT_EQ(settings->transport_setting, new_settings->transport_setting);
EXPECT_EQ(1, wrapping_factory.created_transport_count());
}
TEST_F(JsepTransportControllerTest, GetMediaTransportInCallee) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
description->AddMediaTransportSetting("fake", "fake-remote-settings");
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
// After SetRemoteDescription, media transport should be created as callee.
EXPECT_FALSE(media_transport->is_caller());
// We do not set pre-shared key on the callee, it comes in media transport
// settings.
EXPECT_EQ(absl::nullopt, media_transport->settings().pre_shared_key);
EXPECT_TRUE(media_transport->is_connected());
// Return nullptr for non-existing mids.
EXPECT_EQ(nullptr, transport_controller_->GetMediaTransport(kVideoMid2));
EXPECT_EQ(cricket::kNoOpDtlsTransportComponent,
transport_controller_->GetDtlsTransport(kAudioMid1)->component())
<< "Because media transport is used, expected no-op DTLS transport.";
}
TEST_F(JsepTransportControllerTest, GetMediaTransportInCalleePassesSdp) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
description->AddMediaTransportSetting("fake", "this-is-a-test-setting");
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
EXPECT_EQ("this-is-a-test-setting",
media_transport->settings().remote_transport_parameters);
}
// Caller generates the offer if media transport returns empty offer (no
// parameters).
TEST_F(JsepTransportControllerTest, MediaTransportGeneratesSessionDescription) {
FakeMediaTransportFactory fake_media_transport_factory(
/*transport_offer=*/"");
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
absl::optional<cricket::SessionDescription::MediaTransportSetting> settings =
transport_controller_->GenerateOrGetLastMediaTransportOffer();
ASSERT_TRUE(settings.has_value());
EXPECT_EQ("fake", settings->transport_name);
// Fake media transport returns empty settings (but not nullopt settings!)
EXPECT_EQ("", settings->transport_setting);
}
// Caller generates the offer if media transport returns offer with parameters.
TEST_F(JsepTransportControllerTest,
MediaTransportGeneratesSessionDescriptionWithOfferParams) {
FakeMediaTransportFactory fake_media_transport_factory(
/*transport_offer=*/"offer-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_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
absl::optional<cricket::SessionDescription::MediaTransportSetting> settings =
transport_controller_->GenerateOrGetLastMediaTransportOffer();
ASSERT_TRUE(settings.has_value());
EXPECT_EQ("fake", settings->transport_name);
EXPECT_EQ("offer-params", settings->transport_setting);
}
// Caller skips the offer if media transport requests it.
TEST_F(JsepTransportControllerTest,
MediaTransportGeneratesSkipsSessionDescription) {
FakeMediaTransportFactory fake_media_transport_factory(
/*transport_offer=*/absl::nullopt);
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
absl::optional<cricket::SessionDescription::MediaTransportSetting> settings =
transport_controller_->GenerateOrGetLastMediaTransportOffer();
// Fake media transport returns nullopt settings
ASSERT_EQ(absl::nullopt, settings);
}
// Caller ignores its own outgoing parameters.
TEST_F(JsepTransportControllerTest,
GetMediaTransportInCallerIgnoresXmtSection) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
EXPECT_NE(absl::nullopt,
transport_controller_->GenerateOrGetLastMediaTransportOffer());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
// Remote parameters are nullopt, because we are the offerer (we don't)
// have the remote transport parameters, only ours.
EXPECT_EQ(absl::nullopt,
media_transport->settings().remote_transport_parameters);
}
TEST_F(JsepTransportControllerTest,
GetMediaTransportInCalleeIgnoresDifferentTransport) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
description->AddMediaTransportSetting("not-a-fake-transport",
"this-is-a-test-setting");
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
EXPECT_EQ(absl::nullopt,
media_transport->settings().remote_transport_parameters);
}
TEST_F(JsepTransportControllerTest, GetMediaTransportIsNotSetIfNoSdes) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyNegotiate;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, description.get())
.ok());
EXPECT_EQ(nullptr, transport_controller_->GetMediaTransport(kAudioMid1));
// Even if we set local description with crypto now (after the remote offer
// was set), media transport won't be provided.
auto description2 = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description2.get());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kAnswer, description2.get())
.ok());
EXPECT_EQ(nullptr, transport_controller_->GetMediaTransport(kAudioMid1));
EXPECT_EQ(cricket::ICE_CANDIDATE_COMPONENT_RTP,
transport_controller_->GetDtlsTransport(kAudioMid1)->component())
<< "Because media transport is NOT used (fallback to RTP), expected "
"actual DTLS transport for RTP";
}
TEST_F(JsepTransportControllerTest,
AfterSettingAnswerTheSameMediaTransportIsReturnedCallee) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.media_transport_factory = &fake_media_transport_factory;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
description->AddMediaTransportSetting("fake", "fake-settings");
EXPECT_TRUE(transport_controller_
->SetRemoteDescription(SdpType::kOffer, description.get())
.ok());
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
EXPECT_NE(nullptr, media_transport);
EXPECT_FALSE(media_transport->pre_shared_key().has_value())
<< "On the callee, preshared key is passed through the media-transport "
"settings (x-mt)";
// Even if we set local description with crypto now (after the remote offer
// was set), media transport won't be provided.
auto description2 = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description2.get());
RTCError result = transport_controller_->SetLocalDescription(
SdpType::kAnswer, description2.get());
EXPECT_TRUE(result.ok()) << result.message();
// Media transport did not change.
EXPECT_EQ(media_transport,
transport_controller_->GetMediaTransport(kAudioMid1));
}
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(std::unique_ptr<rtc::SSLIdentity>(
rtc::SSLIdentity::Generate("session1", rtc::KT_DEFAULT)));
rtc::scoped_refptr<rtc::RTCCertificate> returned_certificate;
auto description = absl::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(std::unique_ptr<rtc::SSLIdentity>(
rtc::SSLIdentity::Generate("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(std::unique_ptr<rtc::SSLIdentity>(
rtc::SSLIdentity::Generate("offer", rtc::KT_DEFAULT)));
auto answer_certificate =
rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>(
rtc::SSLIdentity::Generate("answer", rtc::KT_DEFAULT)));
transport_controller_->SetLocalCertificate(offer_certificate);
auto offer_desc = absl::make_unique<cricket::SessionDescription>();
AddAudioSection(offer_desc.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
offer_certificate);
auto answer_desc = absl::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,
SignalConnectionStateConnectedWithMediaTransportAndNoDtlsCaller) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.media_transport_factory = &fake_media_transport_factory;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.use_media_transport_for_data_channels = true;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
// Media Transport is only used with bundle.
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
EXPECT_NE(absl::nullopt,
transport_controller_->GenerateOrGetLastMediaTransportOffer());
EXPECT_TRUE(transport_controller_
->SetLocalDescription(SdpType::kOffer, description.get())
.ok());
auto fake_audio_ice = static_cast<cricket::FakeIceTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1)->ice_transport());
auto fake_video_ice = static_cast<cricket::FakeIceTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1)->ice_transport());
EXPECT_EQ(fake_audio_ice, fake_video_ice);
fake_audio_ice->SetConnectionCount(2);
fake_audio_ice->SetConnectionCount(1);
fake_video_ice->SetConnectionCount(2);
fake_video_ice->SetConnectionCount(1);
fake_audio_ice->SetWritable(true);
fake_video_ice->SetWritable(true);
// Still not connected, because we are waiting for media transport.
EXPECT_EQ_WAIT(cricket::kIceConnectionConnecting, connection_state_,
kTimeout);
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
media_transport->SetState(webrtc::MediaTransportState::kWritable);
// Only one media transport.
EXPECT_EQ_WAIT(cricket::kIceConnectionConnected, connection_state_, kTimeout);
}
TEST_F(JsepTransportControllerTest,
SignalConnectionStateConnectedWithMediaTransportCaller) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.media_transport_factory = &fake_media_transport_factory;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
// Media Transport is only used with bundle.
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
EXPECT_NE(absl::nullopt,
transport_controller_->GenerateOrGetLastMediaTransportOffer());
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));
auto fake_audio_ice = static_cast<cricket::FakeIceTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1)->ice_transport());
auto fake_video_ice = static_cast<cricket::FakeIceTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1)->ice_transport());
fake_audio_ice->SetConnectionCount(2);
fake_audio_ice->SetConnectionCount(1);
fake_video_ice->SetConnectionCount(2);
fake_video_ice->SetConnectionCount(1);
fake_audio_ice->SetWritable(true);
fake_video_ice->SetWritable(true);
fake_audio_dtls->SetWritable(true);
fake_video_dtls->SetWritable(true);
// Still not connected, because we are waiting for media transport.
EXPECT_EQ_WAIT(cricket::kIceConnectionConnecting, connection_state_,
kTimeout);
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
media_transport->SetState(webrtc::MediaTransportState::kWritable);
EXPECT_EQ_WAIT(cricket::kIceConnectionConnecting, connection_state_,
kTimeout);
// Still waiting for the second media transport.
media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kVideoMid1));
media_transport->SetState(webrtc::MediaTransportState::kWritable);
EXPECT_EQ_WAIT(cricket::kIceConnectionConnected, connection_state_, kTimeout);
}
TEST_F(JsepTransportControllerTest,
SignalConnectionStateFailedWhenMediaTransportClosedCaller) {
FakeMediaTransportFactory fake_media_transport_factory;
JsepTransportController::Config config;
config.media_transport_factory = &fake_media_transport_factory;
config.rtcp_mux_policy = PeerConnectionInterface::kRtcpMuxPolicyRequire;
config.bundle_policy = PeerConnectionInterface::kBundlePolicyMaxBundle;
config.use_media_transport_for_media = true;
CreateJsepTransportController(config);
auto description = CreateSessionDescriptionWithBundleGroup();
AddCryptoSettings(description.get());
EXPECT_NE(absl::nullopt,
transport_controller_->GenerateOrGetLastMediaTransportOffer());
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));
auto fake_audio_ice = static_cast<cricket::FakeIceTransport*>(
transport_controller_->GetDtlsTransport(kAudioMid1)->ice_transport());
auto fake_video_ice = static_cast<cricket::FakeIceTransport*>(
transport_controller_->GetDtlsTransport(kVideoMid1)->ice_transport());
fake_audio_ice->SetWritable(true);
fake_video_ice->SetWritable(true);
// Decreasing connection count from 2 to 1 triggers connection state event.
fake_audio_ice->SetConnectionCount(2);
fake_audio_ice->SetConnectionCount(1);
fake_video_ice->SetConnectionCount(2);
fake_video_ice->SetConnectionCount(1);
fake_audio_dtls->SetWritable(true);
fake_video_dtls->SetWritable(true);
FakeMediaTransport* media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kAudioMid1));
ASSERT_NE(nullptr, media_transport);
media_transport->SetState(webrtc::MediaTransportState::kWritable);
media_transport = static_cast<FakeMediaTransport*>(
transport_controller_->GetMediaTransport(kVideoMid1));
ASSERT_NE(nullptr, media_transport);
media_transport->SetState(webrtc::MediaTransportState::kWritable);
EXPECT_EQ_WAIT(cricket::kIceConnectionConnected, connection_state_, kTimeout);
media_transport->SetState(webrtc::MediaTransportState::kClosed);
EXPECT_EQ_WAIT(cricket::kIceConnectionFailed, connection_state_, kTimeout);
}
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_);
}
// Older versions of Chrome expect the ICE role to be re-determined when an
// ICE restart occurs, and also don't perform conflict resolution correctly,
// so for now we can't safely stop doing this.
// See: https://bugs.chromium.org/p/chromium/issues/detail?id=628676
// TODO(deadbeef): Remove this when these old versions of Chrome reach a low
// enough population.
TEST_F(JsepTransportControllerTest, IceRoleRedeterminedOnIceRestartByDefault) {
CreateJsepTransportController(JsepTransportController::Config());
// Let the |transport_controller_| be the controlled side initially.
auto remote_offer = absl::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto local_answer = absl::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 = absl::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_CONTROLLING,
fake_dtls->fake_ice_transport()->GetIceRole());
}
// 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 = absl::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto local_answer = absl::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 = absl::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 = absl::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 = absl::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 = absl::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_offer.get(), kAudioMid1, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_LITE, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto local_answer = absl::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 = absl::make_unique<cricket::SessionDescription>();
AddAudioSection(remote_offer2.get(), kAudioMid1, kIceUfrag2, kIcePwd2,
cricket::ICEMODE_LITE, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto local_answer2 = absl::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 = absl::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 = absl::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 = absl::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 = absl::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 = absl::make_unique<cricket::SessionDescription>();
AddDataSection(local_offer.get(), kDataMid1,
cricket::MediaProtocolType::kSctp, kIceUfrag1, kIcePwd1,
cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_ACTPASS,
nullptr);
auto remote_answer = absl::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 = absl::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 = absl::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 = absl::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 = absl::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 = absl::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 = absl::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 = absl::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 = absl::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 = absl::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 = absl::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;
}
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, 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
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