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Don't crash when renegotiating after the peer rejects data channels

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Bug: webrtc:11320
Change-Id: I5a58d550574a4e0702fc6f05b7fb663fbc23d0b4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168200
Commit-Queue: Steve Anton <steveanton@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30463}
This commit is contained in:
Steve Anton 2020-02-05 13:53:38 -08:00 committed by Commit Bot
parent cf2b382322
commit c8ff1600d3
3 changed files with 41 additions and 5 deletions
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2
pc/media_session.cc
View File

@ -2255,7 +2255,7 @@ bool MediaSessionDescriptionFactory::AddSctpDataContentForOffer(
}
desc->AddContent(media_description_options.mid, MediaProtocolType::kSctp,
std::move(data));
media_description_options.stopped, std::move(data));
if (!AddTransportOffer(media_description_options.mid,
media_description_options.transport_options,
current_description, desc, ice_credentials)) {

9
pc/peer_connection.cc
View File

@ -5128,13 +5128,18 @@ void PeerConnection::GetOptionsForUnifiedPlanOffer(
}
} else {
RTC_CHECK_EQ(cricket::MEDIA_TYPE_DATA, media_type);
RTC_CHECK(GetDataMid());
if (had_been_rejected || mid != *GetDataMid()) {
if (had_been_rejected) {
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForRejectedData(mid));
} else {
RTC_CHECK(GetDataMid());
if (mid == *GetDataMid()) {
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForActiveData(mid));
} else {
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForRejectedData(mid));
}
}
}
}

31
pc/peer_connection_data_channel_unittest.cc
View File

@ -212,6 +212,13 @@ class PeerConnectionDataChannelTest
: PeerConnectionDataChannelBaseTest(GetParam()) {}
};
class PeerConnectionDataChannelUnifiedPlanTest
: public PeerConnectionDataChannelBaseTest {
protected:
PeerConnectionDataChannelUnifiedPlanTest()
: PeerConnectionDataChannelBaseTest(SdpSemantics::kUnifiedPlan) {}
};
TEST_P(PeerConnectionDataChannelTest,
NoSctpTransportCreatedIfRtpDataChannelEnabled) {
RTCConfiguration config;
@ -411,4 +418,28 @@ INSTANTIATE_TEST_SUITE_P(PeerConnectionDataChannelTest,
Values(SdpSemantics::kPlanB,
SdpSemantics::kUnifiedPlan));
TEST_F(PeerConnectionDataChannelUnifiedPlanTest,
ReOfferAfterPeerRejectsDataChannel) {
auto caller = CreatePeerConnectionWithDataChannel();
PeerConnectionFactoryInterface::Options options;
options.disable_sctp_data_channels = true;
auto callee = CreatePeerConnection(RTCConfiguration(), options);
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
auto offer = caller->CreateOffer();
ASSERT_TRUE(offer);
const auto& contents = offer->description()->contents();
ASSERT_EQ(1u, contents.size());
EXPECT_TRUE(contents[0].rejected);
ASSERT_TRUE(
caller->SetLocalDescription(CloneSessionDescription(offer.get())));
ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));
auto answer = callee->CreateAnswerAndSetAsLocal();
ASSERT_TRUE(answer);
EXPECT_TRUE(caller->SetRemoteDescription(std::move(answer)));
}
} // namespace webrtc