blob: 5d5296bcb4b51158a85654ce8dfe90370eeb4629 [file] [log] [blame]
/*
* Copyright 2017 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 "api/audio_codecs/builtin_audio_decoder_factory.h"
#include "api/audio_codecs/builtin_audio_encoder_factory.h"
#include "p2p/base/fakeportallocator.h"
#include "pc/mediasession.h"
#include "pc/peerconnectionwrapper.h"
#include "pc/sdputils.h"
#ifdef WEBRTC_ANDROID
#include "pc/test/androidtestinitializer.h"
#endif
#include "pc/test/fakeaudiocapturemodule.h"
#include "pc/test/fakertccertificategenerator.h"
#include "rtc_base/gunit.h"
#include "rtc_base/ptr_util.h"
#include "rtc_base/virtualsocketserver.h"
namespace webrtc {
using RTCConfiguration = PeerConnectionInterface::RTCConfiguration;
using RTCOfferAnswerOptions = PeerConnectionInterface::RTCOfferAnswerOptions;
using ::testing::Values;
using ::testing::Combine;
constexpr int kGenerateCertTimeout = 1000;
class PeerConnectionCryptoUnitTest : public ::testing::Test {
protected:
typedef std::unique_ptr<PeerConnectionWrapper> WrapperPtr;
PeerConnectionCryptoUnitTest()
: vss_(new rtc::VirtualSocketServer()), main_(vss_.get()) {
#ifdef WEBRTC_ANDROID
InitializeAndroidObjects();
#endif
pc_factory_ = CreatePeerConnectionFactory(
rtc::Thread::Current(), rtc::Thread::Current(), rtc::Thread::Current(),
FakeAudioCaptureModule::Create(), CreateBuiltinAudioEncoderFactory(),
CreateBuiltinAudioDecoderFactory(), nullptr, nullptr);
}
WrapperPtr CreatePeerConnection() {
return CreatePeerConnection(RTCConfiguration());
}
WrapperPtr CreatePeerConnection(const RTCConfiguration& config) {
return CreatePeerConnection(config, nullptr);
}
WrapperPtr CreatePeerConnection(
const RTCConfiguration& config,
std::unique_ptr<rtc::RTCCertificateGeneratorInterface> cert_gen) {
auto fake_port_allocator = rtc::MakeUnique<cricket::FakePortAllocator>(
rtc::Thread::Current(), nullptr);
auto observer = rtc::MakeUnique<MockPeerConnectionObserver>();
auto pc = pc_factory_->CreatePeerConnection(
config, std::move(fake_port_allocator), std::move(cert_gen),
observer.get());
if (!pc) {
return nullptr;
}
return rtc::MakeUnique<PeerConnectionWrapper>(pc_factory_, pc,
std::move(observer));
}
// Accepts the same arguments as CreatePeerConnection and adds default audio
// and video tracks.
template <typename... Args>
WrapperPtr CreatePeerConnectionWithAudioVideo(Args&&... args) {
auto wrapper = CreatePeerConnection(std::forward<Args>(args)...);
if (!wrapper) {
return nullptr;
}
wrapper->AddAudioTrack("a");
wrapper->AddVideoTrack("v");
return wrapper;
}
cricket::ConnectionRole& AudioConnectionRole(
cricket::SessionDescription* desc) {
return ConnectionRoleFromContent(desc, cricket::GetFirstAudioContent(desc));
}
cricket::ConnectionRole& VideoConnectionRole(
cricket::SessionDescription* desc) {
return ConnectionRoleFromContent(desc, cricket::GetFirstVideoContent(desc));
}
cricket::ConnectionRole& ConnectionRoleFromContent(
cricket::SessionDescription* desc,
cricket::ContentInfo* content) {
RTC_DCHECK(content);
auto* transport_info = desc->GetTransportInfoByName(content->name);
RTC_DCHECK(transport_info);
return transport_info->description.connection_role;
}
std::unique_ptr<rtc::VirtualSocketServer> vss_;
rtc::AutoSocketServerThread main_;
rtc::scoped_refptr<PeerConnectionFactoryInterface> pc_factory_;
};
SdpContentPredicate HaveDtlsFingerprint() {
return [](const cricket::ContentInfo* content,
const cricket::TransportInfo* transport) {
return transport->description.identity_fingerprint != nullptr;
};
}
SdpContentPredicate HaveSdesCryptos() {
return [](const cricket::ContentInfo* content,
const cricket::TransportInfo* transport) {
const auto* media_desc =
static_cast<const cricket::MediaContentDescription*>(
content->description);
return !media_desc->cryptos().empty();
};
}
SdpContentPredicate HaveProtocol(const std::string& protocol) {
return [protocol](const cricket::ContentInfo* content,
const cricket::TransportInfo* transport) {
const auto* media_desc =
static_cast<const cricket::MediaContentDescription*>(
content->description);
return media_desc->protocol() == protocol;
};
}
SdpContentPredicate HaveSdesGcmCryptos(size_t num_crypto_suites) {
return [num_crypto_suites](const cricket::ContentInfo* content,
const cricket::TransportInfo* transport) {
const auto* media_desc =
static_cast<const cricket::MediaContentDescription*>(
content->description);
if (media_desc->cryptos().size() != num_crypto_suites) {
return false;
}
const cricket::CryptoParams first_params = media_desc->cryptos()[0];
return first_params.key_params.size() == 67U &&
first_params.cipher_suite == "AEAD_AES_256_GCM";
};
}
SdpContentMutator RemoveSdesCryptos() {
return [](cricket::ContentInfo* content, cricket::TransportInfo* transport) {
auto* media_desc =
static_cast<cricket::MediaContentDescription*>(content->description);
media_desc->set_cryptos({});
};
}
SdpContentMutator RemoveDtlsFingerprint() {
return [](cricket::ContentInfo* content, cricket::TransportInfo* transport) {
transport->description.identity_fingerprint.reset();
};
}
// When DTLS is enabled, the SDP offer/answer should have a DTLS fingerprint and
// no SDES cryptos.
TEST_F(PeerConnectionCryptoUnitTest, CorrectCryptoInOfferWhenDtlsEnabled) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
ASSERT_TRUE(offer);
ASSERT_FALSE(offer->description()->contents().empty());
EXPECT_TRUE(SdpContentsAll(HaveDtlsFingerprint(), offer->description()));
EXPECT_TRUE(SdpContentsNone(HaveSdesCryptos(), offer->description()));
EXPECT_TRUE(SdpContentsAll(HaveProtocol(cricket::kMediaProtocolDtlsSavpf),
offer->description()));
}
TEST_F(PeerConnectionCryptoUnitTest, CorrectCryptoInAnswerWhenDtlsEnabled) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOffer());
auto answer = callee->CreateAnswer();
ASSERT_TRUE(answer);
ASSERT_FALSE(answer->description()->contents().empty());
EXPECT_TRUE(SdpContentsAll(HaveDtlsFingerprint(), answer->description()));
EXPECT_TRUE(SdpContentsNone(HaveSdesCryptos(), answer->description()));
EXPECT_TRUE(SdpContentsAll(HaveProtocol(cricket::kMediaProtocolDtlsSavpf),
answer->description()));
}
// When DTLS is disabled, the SDP offer/answer should include SDES cryptos and
// should not have a DTLS fingerprint.
TEST_F(PeerConnectionCryptoUnitTest, CorrectCryptoInOfferWhenDtlsDisabled) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
ASSERT_TRUE(offer);
ASSERT_FALSE(offer->description()->contents().empty());
EXPECT_TRUE(SdpContentsAll(HaveSdesCryptos(), offer->description()));
EXPECT_TRUE(SdpContentsNone(HaveDtlsFingerprint(), offer->description()));
EXPECT_TRUE(SdpContentsAll(HaveProtocol(cricket::kMediaProtocolSavpf),
offer->description()));
}
TEST_F(PeerConnectionCryptoUnitTest, CorrectCryptoInAnswerWhenDtlsDisabled) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOffer());
auto answer = callee->CreateAnswer();
ASSERT_TRUE(answer);
ASSERT_FALSE(answer->description()->contents().empty());
EXPECT_TRUE(SdpContentsAll(HaveSdesCryptos(), answer->description()));
EXPECT_TRUE(SdpContentsNone(HaveDtlsFingerprint(), answer->description()));
EXPECT_TRUE(SdpContentsAll(HaveProtocol(cricket::kMediaProtocolSavpf),
answer->description()));
}
// When encryption is disabled, the SDP offer/answer should have neither a DTLS
// fingerprint nor any SDES crypto options.
TEST_F(PeerConnectionCryptoUnitTest,
CorrectCryptoInOfferWhenEncryptionDisabled) {
PeerConnectionFactoryInterface::Options options;
options.disable_encryption = true;
pc_factory_->SetOptions(options);
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
ASSERT_TRUE(offer);
ASSERT_FALSE(offer->description()->contents().empty());
EXPECT_TRUE(SdpContentsNone(HaveSdesCryptos(), offer->description()));
EXPECT_TRUE(SdpContentsNone(HaveDtlsFingerprint(), offer->description()));
EXPECT_TRUE(SdpContentsAll(HaveProtocol(cricket::kMediaProtocolAvpf),
offer->description()));
}
TEST_F(PeerConnectionCryptoUnitTest,
CorrectCryptoInAnswerWhenEncryptionDisabled) {
PeerConnectionFactoryInterface::Options options;
options.disable_encryption = true;
pc_factory_->SetOptions(options);
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOffer());
auto answer = callee->CreateAnswer();
ASSERT_TRUE(answer);
ASSERT_FALSE(answer->description()->contents().empty());
EXPECT_TRUE(SdpContentsNone(HaveSdesCryptos(), answer->description()));
EXPECT_TRUE(SdpContentsNone(HaveDtlsFingerprint(), answer->description()));
EXPECT_TRUE(SdpContentsAll(HaveProtocol(cricket::kMediaProtocolAvpf),
answer->description()));
}
// When DTLS is disabled and GCM cipher suites are enabled, the SDP offer/answer
// should have the correct ciphers in the SDES crypto options.
// With GCM cipher suites enabled, there will be 3 cryptos in the offer and 1
// in the answer.
TEST_F(PeerConnectionCryptoUnitTest, CorrectCryptoInOfferWithSdesAndGcm) {
PeerConnectionFactoryInterface::Options options;
options.crypto_options.enable_gcm_crypto_suites = true;
pc_factory_->SetOptions(options);
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
ASSERT_TRUE(offer);
ASSERT_FALSE(offer->description()->contents().empty());
EXPECT_TRUE(SdpContentsAll(HaveSdesGcmCryptos(3), offer->description()));
}
TEST_F(PeerConnectionCryptoUnitTest, CorrectCryptoInAnswerWithSdesAndGcm) {
PeerConnectionFactoryInterface::Options options;
options.crypto_options.enable_gcm_crypto_suites = true;
pc_factory_->SetOptions(options);
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOffer());
auto answer = callee->CreateAnswer();
ASSERT_TRUE(answer);
ASSERT_FALSE(answer->description()->contents().empty());
EXPECT_TRUE(SdpContentsAll(HaveSdesGcmCryptos(1), answer->description()));
}
TEST_F(PeerConnectionCryptoUnitTest, CanSetSdesGcmRemoteOfferAndLocalAnswer) {
PeerConnectionFactoryInterface::Options options;
options.crypto_options.enable_gcm_crypto_suites = true;
pc_factory_->SetOptions(options);
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
ASSERT_TRUE(offer);
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto answer = callee->CreateAnswer();
ASSERT_TRUE(answer);
ASSERT_TRUE(callee->SetLocalDescription(std::move(answer)));
}
// The following group tests that two PeerConnections can successfully exchange
// an offer/answer when DTLS is off and that they will refuse any offer/answer
// applied locally/remotely if it does not include SDES cryptos.
TEST_F(PeerConnectionCryptoUnitTest, ExchangeOfferAnswerWhenSdesOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOfferAndSetAsLocal();
ASSERT_TRUE(offer);
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto answer = callee->CreateAnswerAndSetAsLocal();
ASSERT_TRUE(answer);
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetLocalOfferWithNoCryptosWhenSdesOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
SdpContentsForEach(RemoveSdesCryptos(), offer->description());
EXPECT_FALSE(caller->SetLocalDescription(std::move(offer)));
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetRemoteOfferWithNoCryptosWhenSdesOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
SdpContentsForEach(RemoveSdesCryptos(), offer->description());
EXPECT_FALSE(callee->SetRemoteDescription(std::move(offer)));
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetLocalAnswerWithNoCryptosWhenSdesOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal());
auto answer = callee->CreateAnswer();
SdpContentsForEach(RemoveSdesCryptos(), answer->description());
EXPECT_FALSE(callee->SetLocalDescription(std::move(answer)));
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetRemoteAnswerWithNoCryptosWhenSdesOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal());
auto answer = callee->CreateAnswerAndSetAsLocal();
SdpContentsForEach(RemoveSdesCryptos(), answer->description());
EXPECT_FALSE(caller->SetRemoteDescription(std::move(answer)));
}
// The following group tests that two PeerConnections can successfully exchange
// an offer/answer when DTLS is on and that they will refuse any offer/answer
// applied locally/remotely if it does not include a DTLS fingerprint.
TEST_F(PeerConnectionCryptoUnitTest, ExchangeOfferAnswerWhenDtlsOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOfferAndSetAsLocal();
ASSERT_TRUE(offer);
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto answer = callee->CreateAnswerAndSetAsLocal();
ASSERT_TRUE(answer);
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetLocalOfferWithNoFingerprintWhenDtlsOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
SdpContentsForEach(RemoveDtlsFingerprint(), offer->description());
EXPECT_FALSE(caller->SetLocalDescription(std::move(offer)));
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetRemoteOfferWithNoFingerprintWhenDtlsOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOffer();
SdpContentsForEach(RemoveDtlsFingerprint(), offer->description());
EXPECT_FALSE(callee->SetRemoteDescription(std::move(offer)));
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetLocalAnswerWithNoFingerprintWhenDtlsOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal());
auto answer = callee->CreateAnswer();
SdpContentsForEach(RemoveDtlsFingerprint(), answer->description());
}
TEST_F(PeerConnectionCryptoUnitTest,
FailToSetRemoteAnswerWithNoFingerprintWhenDtlsOn) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal());
auto answer = callee->CreateAnswerAndSetAsLocal();
SdpContentsForEach(RemoveDtlsFingerprint(), answer->description());
EXPECT_FALSE(caller->SetRemoteDescription(std::move(answer)));
}
// Test that an offer/answer can be exchanged when encryption is disabled.
TEST_F(PeerConnectionCryptoUnitTest, ExchangeOfferAnswerWhenNoEncryption) {
PeerConnectionFactoryInterface::Options options;
options.disable_encryption = true;
pc_factory_->SetOptions(options);
RTCConfiguration config;
config.enable_dtls_srtp.emplace(false);
auto caller = CreatePeerConnectionWithAudioVideo(config);
auto callee = CreatePeerConnectionWithAudioVideo(config);
auto offer = caller->CreateOfferAndSetAsLocal();
ASSERT_TRUE(offer);
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto answer = callee->CreateAnswerAndSetAsLocal();
ASSERT_TRUE(answer);
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
}
// Tests that a DTLS call can be established when the certificate is specified
// in the PeerConnection config and no certificate generator is specified.
TEST_F(PeerConnectionCryptoUnitTest,
ExchangeOfferAnswerWhenDtlsCertificateInConfig) {
RTCConfiguration caller_config;
caller_config.enable_dtls_srtp.emplace(true);
caller_config.certificates.push_back(
FakeRTCCertificateGenerator::GenerateCertificate());
auto caller = CreatePeerConnectionWithAudioVideo(caller_config);
RTCConfiguration callee_config;
callee_config.enable_dtls_srtp.emplace(true);
callee_config.certificates.push_back(
FakeRTCCertificateGenerator::GenerateCertificate());
auto callee = CreatePeerConnectionWithAudioVideo(callee_config);
auto offer = caller->CreateOfferAndSetAsLocal();
ASSERT_TRUE(offer);
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto answer = callee->CreateAnswerAndSetAsLocal();
ASSERT_TRUE(answer);
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
}
// The following parameterized test verifies that CreateOffer/CreateAnswer
// returns successfully (or with failure if the underlying certificate generator
// fails) no matter when the DTLS certificate is generated. If multiple
// CreateOffer/CreateAnswer calls are made while waiting for the certificate,
// they all finish after the certificate is generated.
// Whether the test will call CreateOffer or CreateAnswer.
enum class SdpType { kOffer, kAnswer };
std::ostream& operator<<(std::ostream& out, SdpType value) {
switch (value) {
case SdpType::kOffer:
return out << "offer";
case SdpType::kAnswer:
return out << "answer";
default:
return out << "unknown";
}
}
// Whether the certificate will be generated before calling CreateOffer or
// while CreateOffer is executing.
enum class CertGenTime { kBefore, kDuring };
std::ostream& operator<<(std::ostream& out, CertGenTime value) {
switch (value) {
case CertGenTime::kBefore:
return out << "before";
case CertGenTime::kDuring:
return out << "during";
default:
return out << "unknown";
}
}
// Whether the fake certificate generator will produce a certificate or fail.
enum class CertGenResult { kSucceed, kFail };
std::ostream& operator<<(std::ostream& out, CertGenResult value) {
switch (value) {
case CertGenResult::kSucceed:
return out << "succeed";
case CertGenResult::kFail:
return out << "fail";
default:
return out << "unknown";
}
}
class PeerConnectionCryptoDtlsCertGenUnitTest
: public PeerConnectionCryptoUnitTest,
public ::testing::WithParamInterface<
::testing::tuple<SdpType, CertGenTime, CertGenResult, size_t>> {
protected:
PeerConnectionCryptoDtlsCertGenUnitTest() {
sdp_type_ = ::testing::get<0>(GetParam());
cert_gen_time_ = ::testing::get<1>(GetParam());
cert_gen_result_ = ::testing::get<2>(GetParam());
concurrent_calls_ = ::testing::get<3>(GetParam());
}
SdpType sdp_type_;
CertGenTime cert_gen_time_;
CertGenResult cert_gen_result_;
size_t concurrent_calls_;
};
TEST_P(PeerConnectionCryptoDtlsCertGenUnitTest, TestCertificateGeneration) {
RTCConfiguration config;
config.enable_dtls_srtp.emplace(true);
auto owned_fake_certificate_generator =
rtc::MakeUnique<FakeRTCCertificateGenerator>();
auto* fake_certificate_generator = owned_fake_certificate_generator.get();
fake_certificate_generator->set_should_fail(cert_gen_result_ ==
CertGenResult::kFail);
fake_certificate_generator->set_should_wait(cert_gen_time_ ==
CertGenTime::kDuring);
WrapperPtr pc;
if (sdp_type_ == SdpType::kOffer) {
pc = CreatePeerConnectionWithAudioVideo(
config, std::move(owned_fake_certificate_generator));
} else {
auto caller = CreatePeerConnectionWithAudioVideo(config);
pc = CreatePeerConnectionWithAudioVideo(
config, std::move(owned_fake_certificate_generator));
pc->SetRemoteDescription(caller->CreateOfferAndSetAsLocal());
}
if (cert_gen_time_ == CertGenTime::kBefore) {
ASSERT_TRUE_WAIT(fake_certificate_generator->generated_certificates() +
fake_certificate_generator->generated_failures() >
0,
kGenerateCertTimeout);
} else {
ASSERT_EQ(fake_certificate_generator->generated_certificates(), 0);
fake_certificate_generator->set_should_wait(false);
}
std::vector<rtc::scoped_refptr<MockCreateSessionDescriptionObserver>>
observers;
for (size_t i = 0; i < concurrent_calls_; i++) {
rtc::scoped_refptr<MockCreateSessionDescriptionObserver> observer =
new rtc::RefCountedObject<MockCreateSessionDescriptionObserver>();
observers.push_back(observer);
if (sdp_type_ == SdpType::kOffer) {
pc->pc()->CreateOffer(observer, nullptr);
} else {
pc->pc()->CreateAnswer(observer, nullptr);
}
}
for (auto& observer : observers) {
EXPECT_TRUE_WAIT(observer->called(), 1000);
if (cert_gen_result_ == CertGenResult::kSucceed) {
EXPECT_TRUE(observer->result());
} else {
EXPECT_FALSE(observer->result());
}
}
}
INSTANTIATE_TEST_CASE_P(
PeerConnectionCryptoUnitTest,
PeerConnectionCryptoDtlsCertGenUnitTest,
Combine(Values(SdpType::kOffer, SdpType::kAnswer),
Values(CertGenTime::kBefore, CertGenTime::kDuring),
Values(CertGenResult::kSucceed, CertGenResult::kFail),
Values(1, 3)));
// Test that we can create and set an answer correctly when different
// SSL roles have been negotiated for different transports.
// See: https://bugs.chromium.org/p/webrtc/issues/detail?id=4525
TEST_F(PeerConnectionCryptoUnitTest, CreateAnswerWithDifferentSslRoles) {
auto caller = CreatePeerConnectionWithAudioVideo();
auto callee = CreatePeerConnectionWithAudioVideo();
RTCOfferAnswerOptions options_no_bundle;
options_no_bundle.use_rtp_mux = false;
// First, negotiate different SSL roles for audio and video.
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
auto answer = callee->CreateAnswer(options_no_bundle);
AudioConnectionRole(answer->description()) = cricket::CONNECTIONROLE_ACTIVE;
VideoConnectionRole(answer->description()) = cricket::CONNECTIONROLE_PASSIVE;
ASSERT_TRUE(
callee->SetLocalDescription(CloneSessionDescription(answer.get())));
ASSERT_TRUE(caller->SetRemoteDescription(std::move(answer)));
// Now create an offer in the reverse direction, and ensure the initial
// offerer responds with an answer with the correct SSL roles.
ASSERT_TRUE(caller->SetRemoteDescription(callee->CreateOfferAndSetAsLocal()));
answer = caller->CreateAnswer(options_no_bundle);
EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE,
AudioConnectionRole(answer->description()));
EXPECT_EQ(cricket::CONNECTIONROLE_ACTIVE,
VideoConnectionRole(answer->description()));
ASSERT_TRUE(
caller->SetLocalDescription(CloneSessionDescription(answer.get())));
ASSERT_TRUE(callee->SetRemoteDescription(std::move(answer)));
// Lastly, start BUNDLE-ing on "audio", expecting that the "passive" role of
// audio is transferred over to video in the answer that completes the BUNDLE
// negotiation.
RTCOfferAnswerOptions options_bundle;
options_bundle.use_rtp_mux = true;
ASSERT_TRUE(caller->SetRemoteDescription(callee->CreateOfferAndSetAsLocal()));
answer = caller->CreateAnswer(options_bundle);
EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE,
AudioConnectionRole(answer->description()));
EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE,
VideoConnectionRole(answer->description()));
ASSERT_TRUE(
caller->SetLocalDescription(CloneSessionDescription(answer.get())));
ASSERT_TRUE(callee->SetRemoteDescription(std::move(answer)));
}
} // namespace webrtc