| /* |
| * 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.h" |
| |
| #include <memory> |
| #include <tuple> |
| #include <utility> |
| |
| #include "absl/memory/memory.h" |
| #include "media/base/fake_rtp.h" |
| #include "p2p/base/fake_dtls_transport.h" |
| #include "p2p/base/fake_ice_transport.h" |
| #include "rtc_base/gunit.h" |
| |
| namespace cricket { |
| using webrtc::SdpType; |
| |
| static const char kIceUfrag1[] = "U001"; |
| static const char kIcePwd1[] = "TESTICEPWD00000000000001"; |
| static const char kIceUfrag2[] = "U002"; |
| static const char kIcePwd2[] = "TESTIEPWD00000000000002"; |
| static const char kTransportName[] = "Test Transport"; |
| |
| enum class SrtpMode { |
| kSdes, |
| kDtlsSrtp, |
| }; |
| |
| struct NegotiateRoleParams { |
| ConnectionRole local_role; |
| ConnectionRole remote_role; |
| SdpType local_type; |
| SdpType remote_type; |
| }; |
| |
| class JsepTransport2Test : public ::testing::Test, public sigslot::has_slots<> { |
| protected: |
| std::unique_ptr<webrtc::SrtpTransport> CreateSdesTransport( |
| rtc::PacketTransportInternal* rtp_packet_transport, |
| rtc::PacketTransportInternal* rtcp_packet_transport) { |
| auto srtp_transport = absl::make_unique<webrtc::SrtpTransport>( |
| rtcp_packet_transport == nullptr); |
| |
| srtp_transport->SetRtpPacketTransport(rtp_packet_transport); |
| if (rtcp_packet_transport) { |
| srtp_transport->SetRtcpPacketTransport(rtp_packet_transport); |
| } |
| return srtp_transport; |
| } |
| |
| std::unique_ptr<webrtc::DtlsSrtpTransport> CreateDtlsSrtpTransport( |
| cricket::DtlsTransportInternal* rtp_dtls_transport, |
| cricket::DtlsTransportInternal* rtcp_dtls_transport) { |
| auto dtls_srtp_transport = absl::make_unique<webrtc::DtlsSrtpTransport>( |
| rtcp_dtls_transport == nullptr); |
| dtls_srtp_transport->SetDtlsTransports(rtp_dtls_transport, |
| rtcp_dtls_transport); |
| return dtls_srtp_transport; |
| } |
| |
| // Create a new JsepTransport with a FakeDtlsTransport and a |
| // FakeIceTransport. |
| std::unique_ptr<JsepTransport> CreateJsepTransport2(bool rtcp_mux_enabled, |
| SrtpMode srtp_mode) { |
| auto ice = absl::make_unique<FakeIceTransport>(kTransportName, |
| ICE_CANDIDATE_COMPONENT_RTP); |
| auto rtp_dtls_transport = absl::make_unique<FakeDtlsTransport>(ice.get()); |
| |
| std::unique_ptr<FakeIceTransport> rtcp_ice; |
| std::unique_ptr<FakeDtlsTransport> rtcp_dtls_transport; |
| if (!rtcp_mux_enabled) { |
| rtcp_ice = absl::make_unique<FakeIceTransport>( |
| kTransportName, ICE_CANDIDATE_COMPONENT_RTCP); |
| rtcp_dtls_transport = |
| absl::make_unique<FakeDtlsTransport>(rtcp_ice.get()); |
| } |
| |
| std::unique_ptr<webrtc::RtpTransport> unencrypted_rtp_transport; |
| std::unique_ptr<webrtc::SrtpTransport> sdes_transport; |
| std::unique_ptr<webrtc::DtlsSrtpTransport> dtls_srtp_transport; |
| switch (srtp_mode) { |
| case SrtpMode::kSdes: |
| sdes_transport = CreateSdesTransport(rtp_dtls_transport.get(), |
| rtcp_dtls_transport.get()); |
| sdes_transport_ = sdes_transport.get(); |
| break; |
| case SrtpMode::kDtlsSrtp: |
| dtls_srtp_transport = CreateDtlsSrtpTransport( |
| rtp_dtls_transport.get(), rtcp_dtls_transport.get()); |
| break; |
| default: |
| RTC_NOTREACHED(); |
| } |
| |
| // TODO(sukhanov): Currently there is no media_transport specific |
| // logic in jseptransport, so jseptransport unittests are created with |
| // media_transport = nullptr. In the future we will probably add |
| // more logic that require unit tests. Note that creation of media_transport |
| // is covered in jseptransportcontroller_unittest. |
| auto jsep_transport = absl::make_unique<JsepTransport>( |
| kTransportName, /*local_certificate=*/nullptr, std::move(ice), |
| std::move(rtcp_ice), std::move(unencrypted_rtp_transport), |
| std::move(sdes_transport), std::move(dtls_srtp_transport), |
| /*datagram_rtp_transport=*/nullptr, std::move(rtp_dtls_transport), |
| std::move(rtcp_dtls_transport), |
| /*datagram_dtls_transport=*/nullptr, |
| /*media_transport=*/nullptr, |
| /*datagram_transport=*/nullptr); |
| |
| signal_rtcp_mux_active_received_ = false; |
| jsep_transport->SignalRtcpMuxActive.connect( |
| this, &JsepTransport2Test::OnRtcpMuxActive); |
| return jsep_transport; |
| } |
| |
| JsepTransportDescription MakeJsepTransportDescription( |
| bool rtcp_mux_enabled, |
| const char* ufrag, |
| const char* pwd, |
| const rtc::scoped_refptr<rtc::RTCCertificate>& cert, |
| ConnectionRole role = CONNECTIONROLE_NONE) { |
| JsepTransportDescription jsep_description; |
| jsep_description.rtcp_mux_enabled = rtcp_mux_enabled; |
| |
| std::unique_ptr<rtc::SSLFingerprint> fingerprint; |
| if (cert) { |
| fingerprint = rtc::SSLFingerprint::CreateFromCertificate(*cert); |
| } |
| jsep_description.transport_desc = |
| TransportDescription(std::vector<std::string>(), ufrag, pwd, |
| ICEMODE_FULL, role, fingerprint.get()); |
| return jsep_description; |
| } |
| |
| Candidate CreateCandidate(int component) { |
| Candidate c; |
| c.set_address(rtc::SocketAddress("192.168.1.1", 8000)); |
| c.set_component(component); |
| c.set_protocol(UDP_PROTOCOL_NAME); |
| c.set_priority(1); |
| return c; |
| } |
| |
| void OnRtcpMuxActive() { signal_rtcp_mux_active_received_ = true; } |
| |
| std::unique_ptr<JsepTransport> jsep_transport_; |
| bool signal_rtcp_mux_active_received_ = false; |
| // The SrtpTransport is owned by |jsep_transport_|. Keep a raw pointer here |
| // for testing. |
| webrtc::SrtpTransport* sdes_transport_ = nullptr; |
| }; |
| |
| // The parameterized tests cover both cases when RTCP mux is enable and |
| // disabled. |
| class JsepTransport2WithRtcpMux : public JsepTransport2Test, |
| public ::testing::WithParamInterface<bool> {}; |
| |
| // This test verifies the ICE parameters are properly applied to the transports. |
| TEST_P(JsepTransport2WithRtcpMux, SetIceParameters) { |
| bool rtcp_mux_enabled = GetParam(); |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| |
| JsepTransportDescription jsep_description; |
| jsep_description.transport_desc = TransportDescription(kIceUfrag1, kIcePwd1); |
| jsep_description.rtcp_mux_enabled = rtcp_mux_enabled; |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(jsep_description, SdpType::kOffer) |
| .ok()); |
| auto fake_ice_transport = static_cast<FakeIceTransport*>( |
| jsep_transport_->rtp_dtls_transport()->ice_transport()); |
| EXPECT_EQ(ICEMODE_FULL, fake_ice_transport->remote_ice_mode()); |
| EXPECT_EQ(kIceUfrag1, fake_ice_transport->ice_ufrag()); |
| EXPECT_EQ(kIcePwd1, fake_ice_transport->ice_pwd()); |
| if (!rtcp_mux_enabled) { |
| fake_ice_transport = static_cast<FakeIceTransport*>( |
| jsep_transport_->rtcp_dtls_transport()->ice_transport()); |
| ASSERT_TRUE(fake_ice_transport); |
| EXPECT_EQ(ICEMODE_FULL, fake_ice_transport->remote_ice_mode()); |
| EXPECT_EQ(kIceUfrag1, fake_ice_transport->ice_ufrag()); |
| EXPECT_EQ(kIcePwd1, fake_ice_transport->ice_pwd()); |
| } |
| |
| jsep_description.transport_desc = TransportDescription(kIceUfrag2, kIcePwd2); |
| ASSERT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(jsep_description, |
| SdpType::kAnswer) |
| .ok()); |
| fake_ice_transport = static_cast<FakeIceTransport*>( |
| jsep_transport_->rtp_dtls_transport()->ice_transport()); |
| EXPECT_EQ(ICEMODE_FULL, fake_ice_transport->remote_ice_mode()); |
| EXPECT_EQ(kIceUfrag2, fake_ice_transport->remote_ice_ufrag()); |
| EXPECT_EQ(kIcePwd2, fake_ice_transport->remote_ice_pwd()); |
| if (!rtcp_mux_enabled) { |
| fake_ice_transport = static_cast<FakeIceTransport*>( |
| jsep_transport_->rtcp_dtls_transport()->ice_transport()); |
| ASSERT_TRUE(fake_ice_transport); |
| EXPECT_EQ(ICEMODE_FULL, fake_ice_transport->remote_ice_mode()); |
| EXPECT_EQ(kIceUfrag2, fake_ice_transport->remote_ice_ufrag()); |
| EXPECT_EQ(kIcePwd2, fake_ice_transport->remote_ice_pwd()); |
| } |
| } |
| |
| // Similarly, test DTLS parameters are properly applied to the transports. |
| TEST_P(JsepTransport2WithRtcpMux, SetDtlsParameters) { |
| bool rtcp_mux_enabled = GetParam(); |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| |
| // Create certificates. |
| rtc::scoped_refptr<rtc::RTCCertificate> local_cert = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("local", rtc::KT_DEFAULT))); |
| rtc::scoped_refptr<rtc::RTCCertificate> remote_cert = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("remote", rtc::KT_DEFAULT))); |
| jsep_transport_->SetLocalCertificate(local_cert); |
| |
| // Apply offer. |
| JsepTransportDescription local_description = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| local_cert, CONNECTIONROLE_ACTPASS); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, SdpType::kOffer) |
| .ok()); |
| // Apply Answer. |
| JsepTransportDescription remote_description = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| remote_cert, CONNECTIONROLE_ACTIVE); |
| ASSERT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| SdpType::kAnswer) |
| .ok()); |
| |
| // Verify that SSL role and remote fingerprint were set correctly based on |
| // transport descriptions. |
| auto role = jsep_transport_->GetDtlsRole(); |
| ASSERT_TRUE(role); |
| EXPECT_EQ(rtc::SSL_SERVER, role); // Because remote description was "active". |
| auto fake_dtls = |
| static_cast<FakeDtlsTransport*>(jsep_transport_->rtp_dtls_transport()); |
| EXPECT_EQ(remote_description.transport_desc.identity_fingerprint->ToString(), |
| fake_dtls->dtls_fingerprint().ToString()); |
| |
| if (!rtcp_mux_enabled) { |
| auto fake_rtcp_dtls = |
| static_cast<FakeDtlsTransport*>(jsep_transport_->rtcp_dtls_transport()); |
| EXPECT_EQ( |
| remote_description.transport_desc.identity_fingerprint->ToString(), |
| fake_rtcp_dtls->dtls_fingerprint().ToString()); |
| } |
| } |
| |
| // Same as above test, but with remote transport description using |
| // CONNECTIONROLE_PASSIVE, expecting SSL_CLIENT role. |
| TEST_P(JsepTransport2WithRtcpMux, SetDtlsParametersWithPassiveAnswer) { |
| bool rtcp_mux_enabled = GetParam(); |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| |
| // Create certificates. |
| rtc::scoped_refptr<rtc::RTCCertificate> local_cert = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("local", rtc::KT_DEFAULT))); |
| rtc::scoped_refptr<rtc::RTCCertificate> remote_cert = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("remote", rtc::KT_DEFAULT))); |
| jsep_transport_->SetLocalCertificate(local_cert); |
| |
| // Apply offer. |
| JsepTransportDescription local_description = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| local_cert, CONNECTIONROLE_ACTPASS); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, SdpType::kOffer) |
| .ok()); |
| // Apply Answer. |
| JsepTransportDescription remote_description = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| remote_cert, CONNECTIONROLE_PASSIVE); |
| ASSERT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| SdpType::kAnswer) |
| .ok()); |
| |
| // Verify that SSL role and remote fingerprint were set correctly based on |
| // transport descriptions. |
| auto role = jsep_transport_->GetDtlsRole(); |
| ASSERT_TRUE(role); |
| EXPECT_EQ(rtc::SSL_CLIENT, |
| role); // Because remote description was "passive". |
| auto fake_dtls = |
| static_cast<FakeDtlsTransport*>(jsep_transport_->rtp_dtls_transport()); |
| EXPECT_EQ(remote_description.transport_desc.identity_fingerprint->ToString(), |
| fake_dtls->dtls_fingerprint().ToString()); |
| |
| if (!rtcp_mux_enabled) { |
| auto fake_rtcp_dtls = |
| static_cast<FakeDtlsTransport*>(jsep_transport_->rtcp_dtls_transport()); |
| EXPECT_EQ( |
| remote_description.transport_desc.identity_fingerprint->ToString(), |
| fake_rtcp_dtls->dtls_fingerprint().ToString()); |
| } |
| } |
| |
| // Tests SetNeedsIceRestartFlag and need_ice_restart, ensuring needs_ice_restart |
| // only starts returning "false" once an ICE restart has been initiated. |
| TEST_P(JsepTransport2WithRtcpMux, NeedsIceRestart) { |
| bool rtcp_mux_enabled = GetParam(); |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| |
| // Use the same JsepTransportDescription for both offer and answer. |
| JsepTransportDescription description; |
| description.transport_desc = TransportDescription(kIceUfrag1, kIcePwd1); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(description, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(description, SdpType::kAnswer) |
| .ok()); |
| // Flag initially should be false. |
| EXPECT_FALSE(jsep_transport_->needs_ice_restart()); |
| |
| // After setting flag, it should be true. |
| jsep_transport_->SetNeedsIceRestartFlag(); |
| EXPECT_TRUE(jsep_transport_->needs_ice_restart()); |
| |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(description, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(description, SdpType::kAnswer) |
| .ok()); |
| EXPECT_TRUE(jsep_transport_->needs_ice_restart()); |
| |
| // Doing an offer/answer that restarts ICE should clear the flag. |
| description.transport_desc = TransportDescription(kIceUfrag2, kIcePwd2); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(description, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(description, SdpType::kAnswer) |
| .ok()); |
| EXPECT_FALSE(jsep_transport_->needs_ice_restart()); |
| } |
| |
| TEST_P(JsepTransport2WithRtcpMux, GetStats) { |
| bool rtcp_mux_enabled = GetParam(); |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| |
| size_t expected_stats_size = rtcp_mux_enabled ? 1u : 2u; |
| TransportStats stats; |
| EXPECT_TRUE(jsep_transport_->GetStats(&stats)); |
| EXPECT_EQ(expected_stats_size, stats.channel_stats.size()); |
| EXPECT_EQ(ICE_CANDIDATE_COMPONENT_RTP, stats.channel_stats[0].component); |
| if (!rtcp_mux_enabled) { |
| EXPECT_EQ(ICE_CANDIDATE_COMPONENT_RTCP, stats.channel_stats[1].component); |
| } |
| } |
| |
| // Tests that VerifyCertificateFingerprint only returns true when the |
| // certificate matches the fingerprint. |
| TEST_P(JsepTransport2WithRtcpMux, VerifyCertificateFingerprint) { |
| bool rtcp_mux_enabled = GetParam(); |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| |
| EXPECT_FALSE( |
| jsep_transport_->VerifyCertificateFingerprint(nullptr, nullptr).ok()); |
| rtc::KeyType key_types[] = {rtc::KT_RSA, rtc::KT_ECDSA}; |
| |
| for (auto& key_type : key_types) { |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", key_type))); |
| ASSERT_NE(nullptr, certificate); |
| |
| std::string digest_algorithm; |
| ASSERT_TRUE(certificate->GetSSLCertificate().GetSignatureDigestAlgorithm( |
| &digest_algorithm)); |
| ASSERT_FALSE(digest_algorithm.empty()); |
| std::unique_ptr<rtc::SSLFingerprint> good_fingerprint = |
| rtc::SSLFingerprint::CreateUnique(digest_algorithm, |
| *certificate->identity()); |
| ASSERT_NE(nullptr, good_fingerprint); |
| |
| EXPECT_TRUE(jsep_transport_ |
| ->VerifyCertificateFingerprint(certificate.get(), |
| good_fingerprint.get()) |
| .ok()); |
| EXPECT_FALSE(jsep_transport_ |
| ->VerifyCertificateFingerprint(certificate.get(), nullptr) |
| .ok()); |
| EXPECT_FALSE( |
| jsep_transport_ |
| ->VerifyCertificateFingerprint(nullptr, good_fingerprint.get()) |
| .ok()); |
| |
| rtc::SSLFingerprint bad_fingerprint = *good_fingerprint; |
| bad_fingerprint.digest.AppendData("0", 1); |
| EXPECT_FALSE( |
| jsep_transport_ |
| ->VerifyCertificateFingerprint(certificate.get(), &bad_fingerprint) |
| .ok()); |
| } |
| } |
| |
| // Tests the logic of DTLS role negotiation for an initial offer/answer. |
| TEST_P(JsepTransport2WithRtcpMux, ValidDtlsRoleNegotiation) { |
| bool rtcp_mux_enabled = GetParam(); |
| // Just use the same certificate for both sides; doesn't really matter in a |
| // non end-to-end test. |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", rtc::KT_ECDSA))); |
| |
| JsepTransportDescription local_description = MakeJsepTransportDescription( |
| rtcp_mux_enabled, kIceUfrag1, kIcePwd1, certificate); |
| JsepTransportDescription remote_description = MakeJsepTransportDescription( |
| rtcp_mux_enabled, kIceUfrag2, kIcePwd2, certificate); |
| |
| // Parameters which set the SSL role to SSL_CLIENT. |
| NegotiateRoleParams valid_client_params[] = { |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_ACTPASS, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_ACTPASS, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_PASSIVE, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_PASSIVE, SdpType::kOffer, |
| SdpType::kPrAnswer}}; |
| |
| for (auto& param : valid_client_params) { |
| jsep_transport_ = |
| CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| local_description.transport_desc.connection_role = param.local_role; |
| remote_description.transport_desc.connection_role = param.remote_role; |
| |
| // Set the offer first. |
| if (param.local_type == SdpType::kOffer) { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| EXPECT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| } else { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| EXPECT_TRUE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| } |
| EXPECT_EQ(rtc::SSL_CLIENT, *jsep_transport_->GetDtlsRole()); |
| } |
| |
| // Parameters which set the SSL role to SSL_SERVER. |
| NegotiateRoleParams valid_server_params[] = { |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTPASS, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTPASS, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_ACTIVE, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_ACTIVE, SdpType::kOffer, |
| SdpType::kPrAnswer}}; |
| |
| for (auto& param : valid_server_params) { |
| jsep_transport_ = |
| CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| local_description.transport_desc.connection_role = param.local_role; |
| remote_description.transport_desc.connection_role = param.remote_role; |
| |
| // Set the offer first. |
| if (param.local_type == SdpType::kOffer) { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| EXPECT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| } else { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| EXPECT_TRUE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| } |
| EXPECT_EQ(rtc::SSL_SERVER, *jsep_transport_->GetDtlsRole()); |
| } |
| } |
| |
| // Tests the logic of DTLS role negotiation for an initial offer/answer. |
| TEST_P(JsepTransport2WithRtcpMux, InvalidDtlsRoleNegotiation) { |
| bool rtcp_mux_enabled = GetParam(); |
| // Just use the same certificate for both sides; doesn't really matter in a |
| // non end-to-end test. |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", rtc::KT_ECDSA))); |
| |
| JsepTransportDescription local_description = MakeJsepTransportDescription( |
| rtcp_mux_enabled, kIceUfrag1, kIcePwd1, certificate); |
| JsepTransportDescription remote_description = MakeJsepTransportDescription( |
| rtcp_mux_enabled, kIceUfrag2, kIcePwd2, certificate); |
| |
| NegotiateRoleParams duplicate_params[] = { |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_ACTIVE, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_ACTPASS, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_PASSIVE, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_ACTIVE, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_ACTPASS, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_PASSIVE, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_ACTIVE, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_ACTPASS, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_PASSIVE, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_ACTIVE, SdpType::kOffer, |
| SdpType::kPrAnswer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_ACTPASS, SdpType::kOffer, |
| SdpType::kPrAnswer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_PASSIVE, SdpType::kOffer, |
| SdpType::kPrAnswer}}; |
| |
| for (auto& param : duplicate_params) { |
| jsep_transport_ = |
| CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| local_description.transport_desc.connection_role = param.local_role; |
| remote_description.transport_desc.connection_role = param.remote_role; |
| |
| if (param.local_type == SdpType::kOffer) { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| EXPECT_FALSE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| } else { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| EXPECT_FALSE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| } |
| } |
| |
| // Invalid parameters due to the offerer not using ACTPASS. |
| NegotiateRoleParams offerer_without_actpass_params[] = { |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_PASSIVE, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTIVE, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_PASSIVE, SdpType::kAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_PASSIVE, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTIVE, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTPASS, CONNECTIONROLE_PASSIVE, SdpType::kPrAnswer, |
| SdpType::kOffer}, |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_PASSIVE, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTIVE, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTPASS, SdpType::kOffer, |
| SdpType::kAnswer}, |
| {CONNECTIONROLE_ACTIVE, CONNECTIONROLE_PASSIVE, SdpType::kOffer, |
| SdpType::kPrAnswer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTIVE, SdpType::kOffer, |
| SdpType::kPrAnswer}, |
| {CONNECTIONROLE_PASSIVE, CONNECTIONROLE_ACTPASS, SdpType::kOffer, |
| SdpType::kPrAnswer}}; |
| |
| for (auto& param : offerer_without_actpass_params) { |
| jsep_transport_ = |
| CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| local_description.transport_desc.connection_role = param.local_role; |
| remote_description.transport_desc.connection_role = param.remote_role; |
| |
| if (param.local_type == SdpType::kOffer) { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| EXPECT_FALSE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| } else { |
| EXPECT_TRUE(jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_description, |
| param.remote_type) |
| .ok()); |
| EXPECT_FALSE(jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_description, |
| param.local_type) |
| .ok()); |
| } |
| } |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(JsepTransport2Test, |
| JsepTransport2WithRtcpMux, |
| ::testing::Bool()); |
| |
| // Test that a reoffer in the opposite direction is successful as long as the |
| // role isn't changing. Doesn't test every possible combination like the test |
| // above. |
| TEST_F(JsepTransport2Test, ValidDtlsReofferFromAnswerer) { |
| // Just use the same certificate for both sides; doesn't really matter in a |
| // non end-to-end test. |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", rtc::KT_ECDSA))); |
| bool rtcp_mux_enabled = true; |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| JsepTransportDescription local_offer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| certificate, CONNECTIONROLE_ACTPASS); |
| JsepTransportDescription remote_answer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| certificate, CONNECTIONROLE_ACTIVE); |
| |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_offer, SdpType::kOffer) |
| .ok()); |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_answer, SdpType::kAnswer) |
| .ok()); |
| |
| // We were actpass->active previously, now in the other direction it's |
| // actpass->passive. |
| JsepTransportDescription remote_offer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| certificate, CONNECTIONROLE_ACTPASS); |
| JsepTransportDescription local_answer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| certificate, CONNECTIONROLE_PASSIVE); |
| |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_offer, SdpType::kOffer) |
| .ok()); |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_answer, SdpType::kAnswer) |
| .ok()); |
| } |
| |
| // Test that a reoffer in the opposite direction fails if the role changes. |
| // Inverse of test above. |
| TEST_F(JsepTransport2Test, InvalidDtlsReofferFromAnswerer) { |
| // Just use the same certificate for both sides; doesn't really matter in a |
| // non end-to-end test. |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", rtc::KT_ECDSA))); |
| bool rtcp_mux_enabled = true; |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| JsepTransportDescription local_offer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| certificate, CONNECTIONROLE_ACTPASS); |
| JsepTransportDescription remote_answer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| certificate, CONNECTIONROLE_ACTIVE); |
| |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_offer, SdpType::kOffer) |
| .ok()); |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_answer, SdpType::kAnswer) |
| .ok()); |
| |
| // Changing role to passive here isn't allowed. Though for some reason this |
| // only fails in SetLocalTransportDescription. |
| JsepTransportDescription remote_offer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| certificate, CONNECTIONROLE_PASSIVE); |
| JsepTransportDescription local_answer = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| certificate, CONNECTIONROLE_ACTIVE); |
| |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_offer, SdpType::kOffer) |
| .ok()); |
| EXPECT_FALSE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_answer, SdpType::kAnswer) |
| .ok()); |
| } |
| |
| // Test that a remote offer with the current negotiated role can be accepted. |
| // This is allowed by dtls-sdp, though we'll never generate such an offer, |
| // since JSEP requires generating "actpass". |
| TEST_F(JsepTransport2Test, RemoteOfferWithCurrentNegotiatedDtlsRole) { |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", rtc::KT_ECDSA))); |
| bool rtcp_mux_enabled = true; |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| JsepTransportDescription remote_desc = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| certificate, CONNECTIONROLE_ACTPASS); |
| JsepTransportDescription local_desc = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| certificate, CONNECTIONROLE_ACTIVE); |
| |
| // Normal initial offer/answer with "actpass" in the offer and "active" in |
| // the answer. |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_desc, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_desc, SdpType::kAnswer) |
| .ok()); |
| |
| // Sanity check that role was actually negotiated. |
| absl::optional<rtc::SSLRole> role = jsep_transport_->GetDtlsRole(); |
| ASSERT_TRUE(role); |
| EXPECT_EQ(rtc::SSL_CLIENT, *role); |
| |
| // Subsequent offer with current negotiated role of "passive". |
| remote_desc.transport_desc.connection_role = CONNECTIONROLE_PASSIVE; |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_desc, SdpType::kOffer) |
| .ok()); |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_desc, SdpType::kAnswer) |
| .ok()); |
| } |
| |
| // Test that a remote offer with the inverse of the current negotiated DTLS |
| // role is rejected. |
| TEST_F(JsepTransport2Test, RemoteOfferThatChangesNegotiatedDtlsRole) { |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", rtc::KT_ECDSA))); |
| bool rtcp_mux_enabled = true; |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| JsepTransportDescription remote_desc = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| certificate, CONNECTIONROLE_ACTPASS); |
| JsepTransportDescription local_desc = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| certificate, CONNECTIONROLE_ACTIVE); |
| |
| // Normal initial offer/answer with "actpass" in the offer and "active" in |
| // the answer. |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_desc, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_desc, SdpType::kAnswer) |
| .ok()); |
| |
| // Sanity check that role was actually negotiated. |
| absl::optional<rtc::SSLRole> role = jsep_transport_->GetDtlsRole(); |
| ASSERT_TRUE(role); |
| EXPECT_EQ(rtc::SSL_CLIENT, *role); |
| |
| // Subsequent offer with current negotiated role of "passive". |
| remote_desc.transport_desc.connection_role = CONNECTIONROLE_ACTIVE; |
| EXPECT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_desc, SdpType::kOffer) |
| .ok()); |
| EXPECT_FALSE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_desc, SdpType::kAnswer) |
| .ok()); |
| } |
| |
| // Testing that a legacy client that doesn't use the setup attribute will be |
| // interpreted as having an active role. |
| TEST_F(JsepTransport2Test, DtlsSetupWithLegacyAsAnswerer) { |
| rtc::scoped_refptr<rtc::RTCCertificate> certificate = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("testing", rtc::KT_ECDSA))); |
| bool rtcp_mux_enabled = true; |
| jsep_transport_ = CreateJsepTransport2(rtcp_mux_enabled, SrtpMode::kDtlsSrtp); |
| jsep_transport_->SetLocalCertificate(certificate); |
| |
| JsepTransportDescription remote_desc = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag1, kIcePwd1, |
| certificate, CONNECTIONROLE_ACTPASS); |
| JsepTransportDescription local_desc = |
| MakeJsepTransportDescription(rtcp_mux_enabled, kIceUfrag2, kIcePwd2, |
| certificate, CONNECTIONROLE_ACTIVE); |
| |
| local_desc.transport_desc.connection_role = CONNECTIONROLE_ACTPASS; |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_desc, SdpType::kOffer) |
| .ok()); |
| // Use CONNECTIONROLE_NONE to simulate legacy endpoint. |
| remote_desc.transport_desc.connection_role = CONNECTIONROLE_NONE; |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_desc, SdpType::kAnswer) |
| .ok()); |
| |
| absl::optional<rtc::SSLRole> role = jsep_transport_->GetDtlsRole(); |
| ASSERT_TRUE(role); |
| // Since legacy answer ommitted setup atribute, and we offered actpass, we |
| // should act as passive (server). |
| EXPECT_EQ(rtc::SSL_SERVER, *role); |
| } |
| |
| // Tests that when the RTCP mux is successfully negotiated, the RTCP transport |
| // will be destroyed and the SignalRtpMuxActive will be fired. |
| TEST_F(JsepTransport2Test, RtcpMuxNegotiation) { |
| jsep_transport_ = |
| CreateJsepTransport2(/*rtcp_mux_enabled=*/false, SrtpMode::kDtlsSrtp); |
| JsepTransportDescription local_desc; |
| local_desc.rtcp_mux_enabled = true; |
| ASSERT_NE(nullptr, jsep_transport_->rtcp_dtls_transport()); |
| EXPECT_FALSE(signal_rtcp_mux_active_received_); |
| |
| // The remote side supports RTCP-mux. |
| JsepTransportDescription remote_desc; |
| remote_desc.rtcp_mux_enabled = true; |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_desc, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_desc, SdpType::kAnswer) |
| .ok()); |
| |
| EXPECT_EQ(nullptr, jsep_transport_->rtcp_dtls_transport()); |
| EXPECT_TRUE(signal_rtcp_mux_active_received_); |
| |
| // The remote side doesn't support RTCP-mux. |
| jsep_transport_ = |
| CreateJsepTransport2(/*rtcp_mux_enabled=*/false, SrtpMode::kDtlsSrtp); |
| signal_rtcp_mux_active_received_ = false; |
| remote_desc.rtcp_mux_enabled = false; |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(local_desc, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(remote_desc, SdpType::kAnswer) |
| .ok()); |
| |
| EXPECT_NE(nullptr, jsep_transport_->rtcp_dtls_transport()); |
| EXPECT_FALSE(signal_rtcp_mux_active_received_); |
| } |
| |
| TEST_F(JsepTransport2Test, SdesNegotiation) { |
| jsep_transport_ = |
| CreateJsepTransport2(/*rtcp_mux_enabled=*/true, SrtpMode::kSdes); |
| ASSERT_TRUE(sdes_transport_); |
| EXPECT_FALSE(sdes_transport_->IsSrtpActive()); |
| |
| JsepTransportDescription offer_desc; |
| offer_desc.cryptos.push_back(cricket::CryptoParams( |
| 1, rtc::CS_AES_CM_128_HMAC_SHA1_32, |
| "inline:" + rtc::CreateRandomString(40), std::string())); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(offer_desc, SdpType::kOffer) |
| .ok()); |
| |
| JsepTransportDescription answer_desc; |
| answer_desc.cryptos.push_back(cricket::CryptoParams( |
| 1, rtc::CS_AES_CM_128_HMAC_SHA1_32, |
| "inline:" + rtc::CreateRandomString(40), std::string())); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(answer_desc, SdpType::kAnswer) |
| .ok()); |
| EXPECT_TRUE(sdes_transport_->IsSrtpActive()); |
| } |
| |
| TEST_F(JsepTransport2Test, SdesNegotiationWithEmptyCryptosInAnswer) { |
| jsep_transport_ = |
| CreateJsepTransport2(/*rtcp_mux_enabled=*/true, SrtpMode::kSdes); |
| ASSERT_TRUE(sdes_transport_); |
| EXPECT_FALSE(sdes_transport_->IsSrtpActive()); |
| |
| JsepTransportDescription offer_desc; |
| offer_desc.cryptos.push_back(cricket::CryptoParams( |
| 1, rtc::CS_AES_CM_128_HMAC_SHA1_32, |
| "inline:" + rtc::CreateRandomString(40), std::string())); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(offer_desc, SdpType::kOffer) |
| .ok()); |
| |
| JsepTransportDescription answer_desc; |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(answer_desc, SdpType::kAnswer) |
| .ok()); |
| // SRTP is not active because the crypto parameter is answer is empty. |
| EXPECT_FALSE(sdes_transport_->IsSrtpActive()); |
| } |
| |
| TEST_F(JsepTransport2Test, SdesNegotiationWithMismatchedCryptos) { |
| jsep_transport_ = |
| CreateJsepTransport2(/*rtcp_mux_enabled=*/true, SrtpMode::kSdes); |
| ASSERT_TRUE(sdes_transport_); |
| EXPECT_FALSE(sdes_transport_->IsSrtpActive()); |
| |
| JsepTransportDescription offer_desc; |
| offer_desc.cryptos.push_back(cricket::CryptoParams( |
| 1, rtc::CS_AES_CM_128_HMAC_SHA1_32, |
| "inline:" + rtc::CreateRandomString(40), std::string())); |
| ASSERT_TRUE( |
| jsep_transport_ |
| ->SetLocalJsepTransportDescription(offer_desc, SdpType::kOffer) |
| .ok()); |
| |
| JsepTransportDescription answer_desc; |
| answer_desc.cryptos.push_back(cricket::CryptoParams( |
| 1, rtc::CS_AES_CM_128_HMAC_SHA1_80, |
| "inline:" + rtc::CreateRandomString(40), std::string())); |
| // Expected to fail because the crypto parameters don't match. |
| ASSERT_FALSE( |
| jsep_transport_ |
| ->SetRemoteJsepTransportDescription(answer_desc, SdpType::kAnswer) |
| .ok()); |
| } |
| |
| // Tests that the remote candidates can be added to the transports after both |
| // local and remote descriptions are set. |
| TEST_F(JsepTransport2Test, AddRemoteCandidates) { |
| jsep_transport_ = |
| CreateJsepTransport2(/*rtcp_mux_enabled=*/true, SrtpMode::kDtlsSrtp); |
| auto fake_ice_transport = static_cast<FakeIceTransport*>( |
| jsep_transport_->rtp_dtls_transport()->ice_transport()); |
| |
| Candidates candidates; |
| candidates.push_back(CreateCandidate(/*COMPONENT_RTP*/ 1)); |
| candidates.push_back(CreateCandidate(/*COMPONENT_RTP*/ 1)); |
| |
| JsepTransportDescription desc; |
| ASSERT_TRUE( |
| jsep_transport_->SetLocalJsepTransportDescription(desc, SdpType::kOffer) |
| .ok()); |
| // Expected to fail because the remote description is unset. |
| EXPECT_FALSE(jsep_transport_->AddRemoteCandidates(candidates).ok()); |
| |
| ASSERT_TRUE( |
| jsep_transport_->SetRemoteJsepTransportDescription(desc, SdpType::kAnswer) |
| .ok()); |
| EXPECT_EQ(0u, fake_ice_transport->remote_candidates().size()); |
| EXPECT_TRUE(jsep_transport_->AddRemoteCandidates(candidates).ok()); |
| EXPECT_EQ(candidates.size(), fake_ice_transport->remote_candidates().size()); |
| } |
| |
| enum class Scenario { |
| kSdes, |
| kDtlsBeforeCallerSendOffer, |
| kDtlsBeforeCallerSetAnswer, |
| kDtlsAfterCallerSetAnswer, |
| }; |
| |
| class JsepTransport2HeaderExtensionTest |
| : public JsepTransport2Test, |
| public ::testing::WithParamInterface<std::tuple<Scenario, bool>> { |
| protected: |
| JsepTransport2HeaderExtensionTest() {} |
| |
| void CreateJsepTransportPair(SrtpMode mode) { |
| jsep_transport1_ = CreateJsepTransport2(/*rtcp_mux_enabled=*/true, mode); |
| jsep_transport2_ = CreateJsepTransport2(/*rtcp_mux_enabled=*/true, mode); |
| |
| auto fake_dtls1 = |
| static_cast<FakeDtlsTransport*>(jsep_transport1_->rtp_dtls_transport()); |
| auto fake_dtls2 = |
| static_cast<FakeDtlsTransport*>(jsep_transport2_->rtp_dtls_transport()); |
| |
| fake_dtls1->fake_ice_transport()->SignalReadPacket.connect( |
| this, &JsepTransport2HeaderExtensionTest::OnReadPacket1); |
| fake_dtls2->fake_ice_transport()->SignalReadPacket.connect( |
| this, &JsepTransport2HeaderExtensionTest::OnReadPacket2); |
| |
| if (mode == SrtpMode::kDtlsSrtp) { |
| auto cert1 = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("session1", rtc::KT_DEFAULT))); |
| jsep_transport1_->rtp_dtls_transport()->SetLocalCertificate(cert1); |
| auto cert2 = |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| rtc::SSLIdentity::Generate("session1", rtc::KT_DEFAULT))); |
| jsep_transport2_->rtp_dtls_transport()->SetLocalCertificate(cert2); |
| } |
| } |
| |
| void OnReadPacket1(rtc::PacketTransportInternal* transport, |
| const char* data, |
| size_t size, |
| const int64_t& /* packet_time_us */, |
| int flags) { |
| RTC_LOG(LS_INFO) << "JsepTransport 1 Received a packet."; |
| CompareHeaderExtensions( |
| reinterpret_cast<const char*>(kPcmuFrameWithExtensions), |
| sizeof(kPcmuFrameWithExtensions), data, size, recv_encrypted_headers1_, |
| false); |
| received_packet_count_++; |
| } |
| |
| void OnReadPacket2(rtc::PacketTransportInternal* transport, |
| const char* data, |
| size_t size, |
| const int64_t& /* packet_time_us */, |
| int flags) { |
| RTC_LOG(LS_INFO) << "JsepTransport 2 Received a packet."; |
| CompareHeaderExtensions( |
| reinterpret_cast<const char*>(kPcmuFrameWithExtensions), |
| sizeof(kPcmuFrameWithExtensions), data, size, recv_encrypted_headers2_, |
| false); |
| received_packet_count_++; |
| } |
| |
| void ConnectTransport() { |
| auto rtp_dtls_transport1 = |
| static_cast<FakeDtlsTransport*>(jsep_transport1_->rtp_dtls_transport()); |
| auto rtp_dtls_transport2 = |
| static_cast<FakeDtlsTransport*>(jsep_transport2_->rtp_dtls_transport()); |
| rtp_dtls_transport1->SetDestination(rtp_dtls_transport2); |
| } |
| |
| int GetRtpAuthLen() { |
| bool use_gcm = std::get<1>(GetParam()); |
| if (use_gcm) { |
| return 16; |
| } |
| return 10; |
| } |
| |
| void TestSendRecvPacketWithEncryptedHeaderExtension() { |
| TestOneWaySendRecvPacketWithEncryptedHeaderExtension( |
| jsep_transport1_.get()); |
| TestOneWaySendRecvPacketWithEncryptedHeaderExtension( |
| jsep_transport2_.get()); |
| } |
| |
| void TestOneWaySendRecvPacketWithEncryptedHeaderExtension( |
| JsepTransport* sender_transport) { |
| size_t rtp_len = sizeof(kPcmuFrameWithExtensions); |
| size_t packet_size = rtp_len + GetRtpAuthLen(); |
| rtc::Buffer rtp_packet_buffer(packet_size); |
| char* rtp_packet_data = rtp_packet_buffer.data<char>(); |
| memcpy(rtp_packet_data, kPcmuFrameWithExtensions, rtp_len); |
| // In order to be able to run this test function multiple times we can not |
| // use the same sequence number twice. Increase the sequence number by one. |
| rtc::SetBE16(reinterpret_cast<uint8_t*>(rtp_packet_data) + 2, |
| ++sequence_number_); |
| rtc::CopyOnWriteBuffer rtp_packet(rtp_packet_data, rtp_len, packet_size); |
| |
| int packet_count_before = received_packet_count_; |
| rtc::PacketOptions options; |
| // Send a packet and verify that the packet can be successfully received and |
| // decrypted. |
| ASSERT_TRUE(sender_transport->rtp_transport()->SendRtpPacket( |
| &rtp_packet, options, cricket::PF_SRTP_BYPASS)); |
| EXPECT_EQ(packet_count_before + 1, received_packet_count_); |
| } |
| |
| int sequence_number_ = 0; |
| int received_packet_count_ = 0; |
| std::unique_ptr<JsepTransport> jsep_transport1_; |
| std::unique_ptr<JsepTransport> jsep_transport2_; |
| std::vector<int> recv_encrypted_headers1_; |
| std::vector<int> recv_encrypted_headers2_; |
| }; |
| |
| // Test that the encrypted header extension works and can be changed in |
| // different scenarios. |
| TEST_P(JsepTransport2HeaderExtensionTest, EncryptedHeaderExtensionNegotiation) { |
| Scenario scenario = std::get<0>(GetParam()); |
| bool use_gcm = std::get<1>(GetParam()); |
| SrtpMode mode = SrtpMode ::kDtlsSrtp; |
| if (scenario == Scenario::kSdes) { |
| mode = SrtpMode::kSdes; |
| } |
| CreateJsepTransportPair(mode); |
| recv_encrypted_headers1_.push_back(kHeaderExtensionIDs[0]); |
| recv_encrypted_headers2_.push_back(kHeaderExtensionIDs[1]); |
| |
| cricket::CryptoParams sdes_param(1, rtc::CS_AES_CM_128_HMAC_SHA1_80, |
| "inline:" + rtc::CreateRandomString(40), |
| std::string()); |
| if (use_gcm) { |
| auto fake_dtls1 = |
| static_cast<FakeDtlsTransport*>(jsep_transport1_->rtp_dtls_transport()); |
| auto fake_dtls2 = |
| static_cast<FakeDtlsTransport*>(jsep_transport2_->rtp_dtls_transport()); |
| |
| fake_dtls1->SetSrtpCryptoSuite(rtc::SRTP_AEAD_AES_256_GCM); |
| fake_dtls2->SetSrtpCryptoSuite(rtc::SRTP_AEAD_AES_256_GCM); |
| } |
| |
| if (scenario == Scenario::kDtlsBeforeCallerSendOffer) { |
| ConnectTransport(); |
| } |
| |
| JsepTransportDescription offer_desc; |
| offer_desc.encrypted_header_extension_ids = recv_encrypted_headers1_; |
| if (scenario == Scenario::kSdes) { |
| offer_desc.cryptos.push_back(sdes_param); |
| } |
| ASSERT_TRUE( |
| jsep_transport1_ |
| ->SetLocalJsepTransportDescription(offer_desc, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport2_ |
| ->SetRemoteJsepTransportDescription(offer_desc, SdpType::kOffer) |
| .ok()); |
| |
| JsepTransportDescription answer_desc; |
| answer_desc.encrypted_header_extension_ids = recv_encrypted_headers2_; |
| if (scenario == Scenario::kSdes) { |
| answer_desc.cryptos.push_back(sdes_param); |
| } |
| ASSERT_TRUE( |
| jsep_transport2_ |
| ->SetLocalJsepTransportDescription(answer_desc, SdpType::kAnswer) |
| .ok()); |
| |
| if (scenario == Scenario::kDtlsBeforeCallerSetAnswer) { |
| ConnectTransport(); |
| // Sending packet from transport2 to transport1 should work when they are |
| // partially configured. |
| TestOneWaySendRecvPacketWithEncryptedHeaderExtension( |
| /*sender_transport=*/jsep_transport2_.get()); |
| } |
| |
| ASSERT_TRUE( |
| jsep_transport1_ |
| ->SetRemoteJsepTransportDescription(answer_desc, SdpType::kAnswer) |
| .ok()); |
| |
| if (scenario == Scenario::kDtlsAfterCallerSetAnswer || |
| scenario == Scenario::kSdes) { |
| ConnectTransport(); |
| } |
| EXPECT_TRUE(jsep_transport1_->rtp_transport()->IsSrtpActive()); |
| EXPECT_TRUE(jsep_transport2_->rtp_transport()->IsSrtpActive()); |
| TestSendRecvPacketWithEncryptedHeaderExtension(); |
| |
| // Change the encrypted header extension in a new offer/answer exchange. |
| recv_encrypted_headers1_.clear(); |
| recv_encrypted_headers2_.clear(); |
| recv_encrypted_headers1_.push_back(kHeaderExtensionIDs[1]); |
| recv_encrypted_headers2_.push_back(kHeaderExtensionIDs[0]); |
| offer_desc.encrypted_header_extension_ids = recv_encrypted_headers1_; |
| answer_desc.encrypted_header_extension_ids = recv_encrypted_headers2_; |
| ASSERT_TRUE( |
| jsep_transport1_ |
| ->SetLocalJsepTransportDescription(offer_desc, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport2_ |
| ->SetRemoteJsepTransportDescription(offer_desc, SdpType::kOffer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport2_ |
| ->SetLocalJsepTransportDescription(answer_desc, SdpType::kAnswer) |
| .ok()); |
| ASSERT_TRUE( |
| jsep_transport1_ |
| ->SetRemoteJsepTransportDescription(answer_desc, SdpType::kAnswer) |
| .ok()); |
| EXPECT_TRUE(jsep_transport1_->rtp_transport()->IsSrtpActive()); |
| EXPECT_TRUE(jsep_transport2_->rtp_transport()->IsSrtpActive()); |
| TestSendRecvPacketWithEncryptedHeaderExtension(); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P( |
| JsepTransport2Test, |
| JsepTransport2HeaderExtensionTest, |
| ::testing::Values( |
| std::make_tuple(Scenario::kSdes, false), |
| std::make_tuple(Scenario::kDtlsBeforeCallerSendOffer, true), |
| std::make_tuple(Scenario::kDtlsBeforeCallerSetAnswer, true), |
| std::make_tuple(Scenario::kDtlsAfterCallerSetAnswer, true), |
| std::make_tuple(Scenario::kDtlsBeforeCallerSendOffer, false), |
| std::make_tuple(Scenario::kDtlsBeforeCallerSetAnswer, false), |
| std::make_tuple(Scenario::kDtlsAfterCallerSetAnswer, false))); |
| |
| } // namespace cricket |
