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Remove DataChannelType and deprecated option disable_sctp_data_channels

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Since there is only a single type of DataChannel now, the enum was only used
when data channels were disabled at the PC API. That option has been
deprecated 4 years ago, it's now time to remove it.

Bug: webrtc:6625
Change-Id: I9e4ada1756da186e9639dd0fbf0249c55ea0b6c7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/215661
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33778}
This commit is contained in:
Florent Castelli 2021-04-19 15:29:50 +02:00 committed by Commit Bot
parent eb9c3f237b
commit 516e284351
13 changed files with 35 additions and 171 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
api/peer_connection_interface.h
View File

@ -1398,10 +1398,6 @@ class RTC_EXPORT PeerConnectionFactoryInterface
// testing/debugging.
bool disable_encryption = false;
// Deprecated. The only effect of setting this to true is that
// CreateDataChannel will fail, which is not that useful.
bool disable_sctp_data_channels = false;
// If set to true, any platform-supported network monitoring capability
// won't be used, and instead networks will only be updated via polling.
//

5
media/base/media_engine.h
View File

@ -156,11 +156,6 @@ class CompositeMediaEngine : public MediaEngineInterface {
const std::unique_ptr<VideoEngineInterface> video_engine_;
};
enum DataChannelType {
DCT_NONE = 0,
DCT_SCTP = 2,
};
webrtc::RtpParameters CreateRtpParametersWithOneEncoding();
webrtc::RtpParameters CreateRtpParametersWithEncodings(StreamParams sp);

28
pc/data_channel_controller.cc
View File

@ -262,17 +262,11 @@ DataChannelController::InternalCreateDataChannelWithProxy(
if (pc_->IsClosed()) {
return nullptr;
}
if (data_channel_type_ == cricket::DCT_NONE) {
RTC_LOG(LS_ERROR)
<< "InternalCreateDataChannel: Data is not supported in this call.";
return nullptr;
}
if (IsSctpLike(data_channel_type())) {
rtc::scoped_refptr<SctpDataChannel> channel =
InternalCreateSctpDataChannel(label, config);
if (channel) {
return SctpDataChannel::CreateProxy(channel);
}
rtc::scoped_refptr<SctpDataChannel> channel =
InternalCreateSctpDataChannel(label, config);
if (channel) {
return SctpDataChannel::CreateProxy(channel);
}
return nullptr;
@ -377,18 +371,6 @@ SctpDataChannel* DataChannelController::FindDataChannelBySid(int sid) const {
return nullptr;
}
cricket::DataChannelType DataChannelController::data_channel_type() const {
// TODO(bugs.webrtc.org/9987): Should be restricted to the signaling thread.
// RTC_DCHECK_RUN_ON(signaling_thread());
return data_channel_type_;
}
void DataChannelController::set_data_channel_type(
cricket::DataChannelType type) {
RTC_DCHECK_RUN_ON(signaling_thread());
data_channel_type_ = type;
}
DataChannelTransportInterface* DataChannelController::data_channel_transport()
const {
// TODO(bugs.webrtc.org/11547): Only allow this accessor to be called on the

7
pc/data_channel_controller.h
View File

@ -102,8 +102,6 @@ class DataChannelController : public SctpDataChannelProviderInterface,
}
// Accessors
cricket::DataChannelType data_channel_type() const;
void set_data_channel_type(cricket::DataChannelType type);
DataChannelTransportInterface* data_channel_transport() const;
void set_data_channel_transport(DataChannelTransportInterface* transport);
@ -144,11 +142,6 @@ class DataChannelController : public SctpDataChannelProviderInterface,
rtc::Thread* network_thread() const;
rtc::Thread* signaling_thread() const;
// Specifies whether or not SCTP data channels are allowed.
cricket::DataChannelType data_channel_type_ =
cricket::DCT_NONE; // TODO(bugs.webrtc.org/9987): Accessed on both
// signaling and network thread.
// Plugin transport used for data channels. Pointer may be accessed and
// checked from any thread, but the object may only be touched on the
// network thread.

4
pc/data_channel_utils.cc
View File

@ -51,8 +51,4 @@ void PacketQueue::Swap(PacketQueue* other) {
other->packets_.swap(packets_);
}
bool IsSctpLike(cricket::DataChannelType type) {
return type == cricket::DCT_SCTP;
}
} // namespace webrtc

2
pc/data_channel_utils.h
View File

@ -57,8 +57,6 @@ struct DataChannelStats {
uint64_t bytes_received;
};
bool IsSctpLike(cricket::DataChannelType type);
} // namespace webrtc
#endif // PC_DATA_CHANNEL_UTILS_H_

3
pc/media_session.cc
View File

@ -2656,8 +2656,7 @@ bool MediaSessionDescriptionFactory::AddDataContentForAnswer(
bool secure = bundle_transport ? bundle_transport->description.secure()
: data_transport->secure();
bool rejected = session_options.data_channel_type == DCT_NONE ||
media_description_options.stopped ||
bool rejected = media_description_options.stopped ||
offer_content->rejected ||
!IsMediaProtocolSupported(MEDIA_TYPE_DATA,
data_answer->protocol(), secure);

2
pc/media_session.h
View File

@ -23,7 +23,6 @@
#include "api/rtp_parameters.h"
#include "api/rtp_transceiver_direction.h"
#include "media/base/media_constants.h"
#include "media/base/media_engine.h" // For DataChannelType
#include "media/base/rid_description.h"
#include "media/base/stream_params.h"
#include "p2p/base/ice_credentials_iterator.h"
@ -106,7 +105,6 @@ struct MediaSessionOptions {
bool HasMediaDescription(MediaType type) const;
DataChannelType data_channel_type = DCT_NONE;
bool vad_enabled = true; // When disabled, removes all CN codecs from SDP.
bool rtcp_mux_enabled = true;
bool bundle_enabled = false;

30
pc/media_session_unittest.cc
View File

@ -329,10 +329,8 @@ static void AddAudioVideoSections(RtpTransceiverDirection direction,
opts);
}
static void AddDataSection(cricket::DataChannelType dct,
RtpTransceiverDirection direction,
static void AddDataSection(RtpTransceiverDirection direction,
MediaSessionOptions* opts) {
opts->data_channel_type = dct;
AddMediaDescriptionOptions(MEDIA_TYPE_DATA, "data", direction, kActive, opts);
}
@ -869,7 +867,6 @@ TEST_F(MediaSessionDescriptionFactoryTest,
AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video",
RtpTransceiverDirection::kInactive, kStopped,
&opts);
opts.data_channel_type = cricket::DCT_NONE;
opts.bundle_enabled = true;
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, NULL);
std::unique_ptr<SessionDescription> answer =
@ -898,7 +895,7 @@ TEST_F(MediaSessionDescriptionFactoryTest,
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSctpDataOffer) {
MediaSessionOptions opts;
opts.bundle_enabled = true;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, NULL);
EXPECT_TRUE(offer.get() != NULL);
@ -913,7 +910,7 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSctpDataOffer) {
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSecureSctpDataOffer) {
MediaSessionOptions opts;
opts.bundle_enabled = true;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
f1_.set_secure(SEC_ENABLED);
tdf1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, NULL);
@ -929,7 +926,7 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSecureSctpDataOffer) {
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateImplicitSctpDataOffer) {
MediaSessionOptions opts;
opts.bundle_enabled = true;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer1(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer1.get() != NULL);
@ -937,10 +934,6 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestCreateImplicitSctpDataOffer) {
ASSERT_TRUE(data != NULL);
ASSERT_EQ(cricket::kMediaProtocolSctp, data->media_description()->protocol());
// Now set data_channel_type to 'none' (default) and make sure that the
// datachannel type that gets generated from the previous offer, is of the
// same type.
opts.data_channel_type = cricket::DCT_NONE;
std::unique_ptr<SessionDescription> offer2(
f1_.CreateOffer(opts, offer1.get()));
data = offer2->GetContentByName("data");
@ -1144,7 +1137,7 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSendOnlyOffer) {
// SessionDescription is preserved in the new SessionDescription.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateOfferContentOrder) {
MediaSessionOptions opts;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
std::unique_ptr<SessionDescription> offer1(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer1.get() != NULL);
@ -1282,7 +1275,7 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestCreateVideoAnswerGcmAnswer) {
// default. The answer's use_sctpmap flag should match the offer's.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateDataAnswerUsesSctpmap) {
MediaSessionOptions opts;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, NULL);
ASSERT_TRUE(offer.get() != NULL);
ContentInfo* dc_offer = offer->GetContentByName("data");
@ -1303,7 +1296,7 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestCreateDataAnswerUsesSctpmap) {
// The answer's use_sctpmap flag should match the offer's.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateDataAnswerWithoutSctpmap) {
MediaSessionOptions opts;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, NULL);
ASSERT_TRUE(offer.get() != NULL);
ContentInfo* dc_offer = offer->GetContentByName("data");
@ -1333,7 +1326,7 @@ TEST_F(MediaSessionDescriptionFactoryTest,
tdf2_.set_secure(SEC_ENABLED);
MediaSessionOptions opts;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, nullptr);
ASSERT_TRUE(offer.get() != nullptr);
ContentInfo* dc_offer = offer->GetContentByName("data");
@ -1367,7 +1360,7 @@ TEST_F(MediaSessionDescriptionFactoryTest,
tdf2_.set_secure(SEC_ENABLED);
MediaSessionOptions opts;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, nullptr);
ASSERT_TRUE(offer.get() != nullptr);
ContentInfo* dc_offer = offer->GetContentByName("data");
@ -1396,7 +1389,7 @@ TEST_F(MediaSessionDescriptionFactoryTest,
tdf2_.set_secure(SEC_ENABLED);
MediaSessionOptions opts;
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
std::unique_ptr<SessionDescription> offer = f1_.CreateOffer(opts, nullptr);
ASSERT_TRUE(offer.get() != nullptr);
ContentInfo* dc_offer = offer->GetContentByName("data");
@ -1421,7 +1414,7 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAnswerContentOrder) {
MediaSessionOptions opts;
// Creates a data only offer.
AddDataSection(cricket::DCT_SCTP, RtpTransceiverDirection::kSendRecv, &opts);
AddDataSection(RtpTransceiverDirection::kSendRecv, &opts);
std::unique_ptr<SessionDescription> offer1(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer1.get() != NULL);
@ -3799,7 +3792,6 @@ TEST_F(MediaSessionDescriptionFactoryTest, TestMIDsMatchesExistingOffer) {
AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video_modified",
RtpTransceiverDirection::kRecvOnly, kActive,
&opts);
opts.data_channel_type = cricket::DCT_SCTP;
AddMediaDescriptionOptions(MEDIA_TYPE_DATA, "data_modified",
RtpTransceiverDirection::kSendRecv, kActive,
&opts);

18
pc/peer_connection.cc
View File

@ -597,11 +597,6 @@ RTCError PeerConnection::Initialize(
NoteUsageEvent(UsageEvent::TURN_SERVER_ADDED);
}
// DTLS has to be enabled to use SCTP.
if (!options_.disable_sctp_data_channels && dtls_enabled_) {
data_channel_controller_.set_data_channel_type(cricket::DCT_SCTP);
}
// Network thread initialization.
network_thread()->Invoke<void>(RTC_FROM_HERE, [this, &stun_servers,
&turn_servers, &configuration,
@ -680,7 +675,7 @@ void PeerConnection::InitializeTransportController_n(
config.active_reset_srtp_params = configuration.active_reset_srtp_params;
// DTLS has to be enabled to use SCTP.
if (!options_.disable_sctp_data_channels && dtls_enabled_) {
if (dtls_enabled_) {
config.sctp_factory = context_->sctp_transport_factory();
}
@ -1943,12 +1938,7 @@ void PeerConnection::OnSelectedCandidatePairChanged(
absl::optional<std::string> PeerConnection::GetDataMid() const {
RTC_DCHECK_RUN_ON(signaling_thread());
switch (data_channel_type()) {
case cricket::DCT_SCTP:
return sctp_mid_s_;
default:
return absl::nullopt;
}
return sctp_mid_s_;
}
void PeerConnection::SetSctpDataMid(const std::string& mid) {
@ -2231,10 +2221,6 @@ std::unique_ptr<rtc::SSLCertChain> PeerConnection::GetRemoteSSLCertChain(
return transport_controller_->GetRemoteSSLCertChain(transport_name);
}
cricket::DataChannelType PeerConnection::data_channel_type() const {
return data_channel_controller_.data_channel_type();
}
bool PeerConnection::IceRestartPending(const std::string& content_name) const {
RTC_DCHECK_RUN_ON(signaling_thread());
return sdp_handler_->IceRestartPending(content_name);

1
pc/peer_connection.h
View File

@ -363,7 +363,6 @@ class PeerConnection : public PeerConnectionInternal,
const PeerConnectionFactoryInterface::Options* options() const {
return &options_;
}
cricket::DataChannelType data_channel_type() const;
void SetIceConnectionState(IceConnectionState new_state);
void NoteUsageEvent(UsageEvent event);

52
pc/peer_connection_data_channel_unittest.cc
View File

@ -289,34 +289,6 @@ TEST_P(PeerConnectionDataChannelTest,
EXPECT_TRUE(caller->pc()->CreateDataChannel("dc", nullptr));
}
TEST_P(PeerConnectionDataChannelTest, CreateDataChannelWithSctpDisabledFails) {
PeerConnectionFactoryInterface::Options options;
options.disable_sctp_data_channels = true;
auto caller = CreatePeerConnection(RTCConfiguration(), options);
EXPECT_FALSE(caller->pc()->CreateDataChannel("dc", nullptr));
}
// Test that if a callee has SCTP disabled and receives an offer with an SCTP
// data channel, the data section is rejected and no SCTP transport is created
// on the callee.
TEST_P(PeerConnectionDataChannelTest,
DataSectionRejectedIfCalleeHasSctpDisabled) {
auto caller = CreatePeerConnectionWithDataChannel();
PeerConnectionFactoryInterface::Options options;
options.disable_sctp_data_channels = true;
auto callee = CreatePeerConnection(RTCConfiguration(), options);
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
EXPECT_FALSE(callee->sctp_transport_factory()->last_fake_sctp_transport());
auto answer = callee->CreateAnswer();
auto* data_content = cricket::GetFirstDataContent(answer->description());
ASSERT_TRUE(data_content);
EXPECT_TRUE(data_content->rejected);
}
TEST_P(PeerConnectionDataChannelTest, SctpPortPropagatedFromSdpToTransport) {
constexpr int kNewSendPort = 9998;
constexpr int kNewRecvPort = 7775;
@ -371,28 +343,4 @@ 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

50
pc/sdp_offer_answer.cc
View File

@ -1375,7 +1375,7 @@ RTCError SdpOfferAnswerHandler::ApplyLocalDescription(
// If setting the description decided our SSL role, allocate any necessary
// SCTP sids.
rtc::SSLRole role;
if (IsSctpLike(pc_->data_channel_type()) && pc_->GetSctpSslRole(&role)) {
if (pc_->GetSctpSslRole(&role)) {
data_channel_controller()->AllocateSctpSids(role);
}
@ -1644,7 +1644,7 @@ RTCError SdpOfferAnswerHandler::ApplyRemoteDescription(
// If setting the description decided our SSL role, allocate any necessary
// SCTP sids.
rtc::SSLRole role;
if (IsSctpLike(pc_->data_channel_type()) && pc_->GetSctpSslRole(&role)) {
if (pc_->GetSctpSslRole(&role)) {
data_channel_controller()->AllocateSctpSids(role);
}
@ -3352,11 +3352,6 @@ RTCError SdpOfferAnswerHandler::UpdateDataChannel(
cricket::ContentSource source,
const cricket::ContentInfo& content,
const cricket::ContentGroup* bundle_group) {
if (pc_->data_channel_type() == cricket::DCT_NONE) {
// If data channels are disabled, ignore this media section. CreateAnswer
// will take care of rejecting it.
return RTCError::OK();
}
if (content.rejected) {
RTC_LOG(LS_INFO) << "Rejected data channel, mid=" << content.mid();
DestroyDataChannelTransport();
@ -3494,8 +3489,6 @@ void SdpOfferAnswerHandler::GetOptionsForOffer(
GetOptionsForPlanBOffer(offer_answer_options, session_options);
}
session_options->data_channel_type = pc_->data_channel_type();
// Apply ICE restart flag and renomination flag.
bool ice_restart = offer_answer_options.ice_restart || HasNewIceCredentials();
for (auto& options : session_options->media_description_options) {
@ -3753,8 +3746,6 @@ void SdpOfferAnswerHandler::GetOptionsForAnswer(
GetOptionsForPlanBAnswer(offer_answer_options, session_options);
}
session_options->data_channel_type = pc_->data_channel_type();
// Apply ICE renomination flag.
for (auto& options : session_options->media_description_options) {
options.transport_options.enable_ice_renomination =
@ -3856,8 +3847,7 @@ void SdpOfferAnswerHandler::GetOptionsForUnifiedPlanAnswer(
// Reject all data sections if data channels are disabled.
// Reject a data section if it has already been rejected.
// Reject all data sections except for the first one.
if (pc_->data_channel_type() == cricket::DCT_NONE || content.rejected ||
content.name != *(pc_->GetDataMid())) {
if (content.rejected || content.name != *(pc_->GetDataMid())) {
session_options->media_description_options.push_back(
GetMediaDescriptionOptionsForRejectedData(content.name));
} else {
@ -4497,8 +4487,8 @@ RTCError SdpOfferAnswerHandler::CreateChannels(const SessionDescription& desc) {
}
const cricket::ContentInfo* data = cricket::GetFirstDataContent(&desc);
if (pc_->data_channel_type() != cricket::DCT_NONE && data &&
!data->rejected && !data_channel_controller()->data_channel_transport()) {
if (data && !data->rejected &&
!data_channel_controller()->data_channel_transport()) {
if (!CreateDataChannel(data->name)) {
LOG_AND_RETURN_ERROR(RTCErrorType::INTERNAL_ERROR,
"Failed to create data channel.");
@ -4548,26 +4538,18 @@ cricket::VideoChannel* SdpOfferAnswerHandler::CreateVideoChannel(
bool SdpOfferAnswerHandler::CreateDataChannel(const std::string& mid) {
RTC_DCHECK_RUN_ON(signaling_thread());
switch (pc_->data_channel_type()) {
case cricket::DCT_SCTP:
if (!pc_->network_thread()->Invoke<bool>(RTC_FROM_HERE, [this, &mid] {
RTC_DCHECK_RUN_ON(pc_->network_thread());
return pc_->SetupDataChannelTransport_n(mid);
})) {
return false;
}
// TODO(tommi): Is this necessary? SetupDataChannelTransport_n() above
// will have queued up updating the transport name on the signaling thread
// and could update the mid at the same time. This here is synchronous
// though, but it changes the state of PeerConnection and makes it be
// out of sync (transport name not set while the mid is set).
pc_->SetSctpDataMid(mid);
break;
case cricket::DCT_NONE:
// User error.
RTC_NOTREACHED();
return false;
if (!pc_->network_thread()->Invoke<bool>(RTC_FROM_HERE, [this, &mid] {
RTC_DCHECK_RUN_ON(pc_->network_thread());
return pc_->SetupDataChannelTransport_n(mid);
})) {
return false;
}
// TODO(tommi): Is this necessary? SetupDataChannelTransport_n() above
// will have queued up updating the transport name on the signaling thread
// and could update the mid at the same time. This here is synchronous
// though, but it changes the state of PeerConnection and makes it be
// out of sync (transport name not set while the mid is set).
pc_->SetSctpDataMid(mid);
return true;
}