| Index: talk/app/webrtc/webrtcsession.cc
|
| diff --git a/talk/app/webrtc/webrtcsession.cc b/talk/app/webrtc/webrtcsession.cc
|
| deleted file mode 100644
|
| index a848408ec5317903a822e47fcf37b3629fcd8a9b..0000000000000000000000000000000000000000
|
| --- a/talk/app/webrtc/webrtcsession.cc
|
| +++ /dev/null
|
| @@ -1,2185 +0,0 @@
|
| -/*
|
| - * libjingle
|
| - * Copyright 2012 Google Inc.
|
| - *
|
| - * Redistribution and use in source and binary forms, with or without
|
| - * modification, are permitted provided that the following conditions are met:
|
| - *
|
| - * 1. Redistributions of source code must retain the above copyright notice,
|
| - * this list of conditions and the following disclaimer.
|
| - * 2. Redistributions in binary form must reproduce the above copyright notice,
|
| - * this list of conditions and the following disclaimer in the documentation
|
| - * and/or other materials provided with the distribution.
|
| - * 3. The name of the author may not be used to endorse or promote products
|
| - * derived from this software without specific prior written permission.
|
| - *
|
| - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
| - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
| - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
|
| - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
| - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
| - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
| - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
| - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
| - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| - */
|
| -
|
| -#include "talk/app/webrtc/webrtcsession.h"
|
| -
|
| -#include <limits.h>
|
| -
|
| -#include <algorithm>
|
| -#include <set>
|
| -#include <utility>
|
| -#include <vector>
|
| -
|
| -#include "talk/app/webrtc/jsepicecandidate.h"
|
| -#include "talk/app/webrtc/jsepsessiondescription.h"
|
| -#include "talk/app/webrtc/mediaconstraintsinterface.h"
|
| -#include "talk/app/webrtc/peerconnectioninterface.h"
|
| -#include "talk/app/webrtc/sctputils.h"
|
| -#include "talk/app/webrtc/webrtcsessiondescriptionfactory.h"
|
| -#include "talk/session/media/channel.h"
|
| -#include "talk/session/media/channelmanager.h"
|
| -#include "talk/session/media/mediasession.h"
|
| -#include "webrtc/audio/audio_sink.h"
|
| -#include "webrtc/base/basictypes.h"
|
| -#include "webrtc/base/checks.h"
|
| -#include "webrtc/base/helpers.h"
|
| -#include "webrtc/base/logging.h"
|
| -#include "webrtc/base/stringencode.h"
|
| -#include "webrtc/base/stringutils.h"
|
| -#include "webrtc/call.h"
|
| -#include "webrtc/media/base/constants.h"
|
| -#include "webrtc/media/base/videocapturer.h"
|
| -#include "webrtc/p2p/base/portallocator.h"
|
| -#include "webrtc/p2p/base/transportchannel.h"
|
| -
|
| -using cricket::ContentInfo;
|
| -using cricket::ContentInfos;
|
| -using cricket::MediaContentDescription;
|
| -using cricket::SessionDescription;
|
| -using cricket::TransportInfo;
|
| -
|
| -using cricket::LOCAL_PORT_TYPE;
|
| -using cricket::STUN_PORT_TYPE;
|
| -using cricket::RELAY_PORT_TYPE;
|
| -using cricket::PRFLX_PORT_TYPE;
|
| -
|
| -namespace webrtc {
|
| -
|
| -// Error messages
|
| -const char kBundleWithoutRtcpMux[] = "RTCP-MUX must be enabled when BUNDLE "
|
| - "is enabled.";
|
| -const char kCreateChannelFailed[] = "Failed to create channels.";
|
| -const char kInvalidCandidates[] = "Description contains invalid candidates.";
|
| -const char kInvalidSdp[] = "Invalid session description.";
|
| -const char kMlineMismatch[] =
|
| - "Offer and answer descriptions m-lines are not matching. Rejecting answer.";
|
| -const char kPushDownTDFailed[] =
|
| - "Failed to push down transport description:";
|
| -const char kSdpWithoutDtlsFingerprint[] =
|
| - "Called with SDP without DTLS fingerprint.";
|
| -const char kSdpWithoutSdesCrypto[] =
|
| - "Called with SDP without SDES crypto.";
|
| -const char kSdpWithoutIceUfragPwd[] =
|
| - "Called with SDP without ice-ufrag and ice-pwd.";
|
| -const char kSessionError[] = "Session error code: ";
|
| -const char kSessionErrorDesc[] = "Session error description: ";
|
| -const char kDtlsSetupFailureRtp[] =
|
| - "Couldn't set up DTLS-SRTP on RTP channel.";
|
| -const char kDtlsSetupFailureRtcp[] =
|
| - "Couldn't set up DTLS-SRTP on RTCP channel.";
|
| -const char kEnableBundleFailed[] = "Failed to enable BUNDLE.";
|
| -
|
| -IceCandidatePairType GetIceCandidatePairCounter(
|
| - const cricket::Candidate& local,
|
| - const cricket::Candidate& remote) {
|
| - const auto& l = local.type();
|
| - const auto& r = remote.type();
|
| - const auto& host = LOCAL_PORT_TYPE;
|
| - const auto& srflx = STUN_PORT_TYPE;
|
| - const auto& relay = RELAY_PORT_TYPE;
|
| - const auto& prflx = PRFLX_PORT_TYPE;
|
| - if (l == host && r == host) {
|
| - bool local_private = IPIsPrivate(local.address().ipaddr());
|
| - bool remote_private = IPIsPrivate(remote.address().ipaddr());
|
| - if (local_private) {
|
| - if (remote_private) {
|
| - return kIceCandidatePairHostPrivateHostPrivate;
|
| - } else {
|
| - return kIceCandidatePairHostPrivateHostPublic;
|
| - }
|
| - } else {
|
| - if (remote_private) {
|
| - return kIceCandidatePairHostPublicHostPrivate;
|
| - } else {
|
| - return kIceCandidatePairHostPublicHostPublic;
|
| - }
|
| - }
|
| - }
|
| - if (l == host && r == srflx)
|
| - return kIceCandidatePairHostSrflx;
|
| - if (l == host && r == relay)
|
| - return kIceCandidatePairHostRelay;
|
| - if (l == host && r == prflx)
|
| - return kIceCandidatePairHostPrflx;
|
| - if (l == srflx && r == host)
|
| - return kIceCandidatePairSrflxHost;
|
| - if (l == srflx && r == srflx)
|
| - return kIceCandidatePairSrflxSrflx;
|
| - if (l == srflx && r == relay)
|
| - return kIceCandidatePairSrflxRelay;
|
| - if (l == srflx && r == prflx)
|
| - return kIceCandidatePairSrflxPrflx;
|
| - if (l == relay && r == host)
|
| - return kIceCandidatePairRelayHost;
|
| - if (l == relay && r == srflx)
|
| - return kIceCandidatePairRelaySrflx;
|
| - if (l == relay && r == relay)
|
| - return kIceCandidatePairRelayRelay;
|
| - if (l == relay && r == prflx)
|
| - return kIceCandidatePairRelayPrflx;
|
| - if (l == prflx && r == host)
|
| - return kIceCandidatePairPrflxHost;
|
| - if (l == prflx && r == srflx)
|
| - return kIceCandidatePairPrflxSrflx;
|
| - if (l == prflx && r == relay)
|
| - return kIceCandidatePairPrflxRelay;
|
| - return kIceCandidatePairMax;
|
| -}
|
| -
|
| -// Compares |answer| against |offer|. Comparision is done
|
| -// for number of m-lines in answer against offer. If matches true will be
|
| -// returned otherwise false.
|
| -static bool VerifyMediaDescriptions(
|
| - const SessionDescription* answer, const SessionDescription* offer) {
|
| - if (offer->contents().size() != answer->contents().size())
|
| - return false;
|
| -
|
| - for (size_t i = 0; i < offer->contents().size(); ++i) {
|
| - if ((offer->contents()[i].name) != answer->contents()[i].name) {
|
| - return false;
|
| - }
|
| - const MediaContentDescription* offer_mdesc =
|
| - static_cast<const MediaContentDescription*>(
|
| - offer->contents()[i].description);
|
| - const MediaContentDescription* answer_mdesc =
|
| - static_cast<const MediaContentDescription*>(
|
| - answer->contents()[i].description);
|
| - if (offer_mdesc->type() != answer_mdesc->type()) {
|
| - return false;
|
| - }
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -// Checks that each non-rejected content has SDES crypto keys or a DTLS
|
| -// fingerprint. Mismatches, such as replying with a DTLS fingerprint to SDES
|
| -// keys, will be caught in Transport negotiation, and backstopped by Channel's
|
| -// |secure_required| check.
|
| -static bool VerifyCrypto(const SessionDescription* desc,
|
| - bool dtls_enabled,
|
| - std::string* error) {
|
| - const ContentInfos& contents = desc->contents();
|
| - for (size_t index = 0; index < contents.size(); ++index) {
|
| - const ContentInfo* cinfo = &contents[index];
|
| - if (cinfo->rejected) {
|
| - continue;
|
| - }
|
| -
|
| - // If the content isn't rejected, crypto must be present.
|
| - const MediaContentDescription* media =
|
| - static_cast<const MediaContentDescription*>(cinfo->description);
|
| - const TransportInfo* tinfo = desc->GetTransportInfoByName(cinfo->name);
|
| - if (!media || !tinfo) {
|
| - // Something is not right.
|
| - LOG(LS_ERROR) << kInvalidSdp;
|
| - *error = kInvalidSdp;
|
| - return false;
|
| - }
|
| - if (dtls_enabled) {
|
| - if (!tinfo->description.identity_fingerprint) {
|
| - LOG(LS_WARNING) <<
|
| - "Session description must have DTLS fingerprint if DTLS enabled.";
|
| - *error = kSdpWithoutDtlsFingerprint;
|
| - return false;
|
| - }
|
| - } else {
|
| - if (media->cryptos().empty()) {
|
| - LOG(LS_WARNING) <<
|
| - "Session description must have SDES when DTLS disabled.";
|
| - *error = kSdpWithoutSdesCrypto;
|
| - return false;
|
| - }
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -// Checks that each non-rejected content has ice-ufrag and ice-pwd set.
|
| -static bool VerifyIceUfragPwdPresent(const SessionDescription* desc) {
|
| - const ContentInfos& contents = desc->contents();
|
| - for (size_t index = 0; index < contents.size(); ++index) {
|
| - const ContentInfo* cinfo = &contents[index];
|
| - if (cinfo->rejected) {
|
| - continue;
|
| - }
|
| -
|
| - // If the content isn't rejected, ice-ufrag and ice-pwd must be present.
|
| - const TransportInfo* tinfo = desc->GetTransportInfoByName(cinfo->name);
|
| - if (!tinfo) {
|
| - // Something is not right.
|
| - LOG(LS_ERROR) << kInvalidSdp;
|
| - return false;
|
| - }
|
| - if (tinfo->description.ice_ufrag.empty() ||
|
| - tinfo->description.ice_pwd.empty()) {
|
| - LOG(LS_ERROR) << "Session description must have ice ufrag and pwd.";
|
| - return false;
|
| - }
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -// Forces |sdesc->crypto_required| to the appropriate state based on the
|
| -// current security policy, to ensure a failure occurs if there is an error
|
| -// in crypto negotiation.
|
| -// Called when processing the local session description.
|
| -static void UpdateSessionDescriptionSecurePolicy(cricket::CryptoType type,
|
| - SessionDescription* sdesc) {
|
| - if (!sdesc) {
|
| - return;
|
| - }
|
| -
|
| - // Updating the |crypto_required_| in MediaContentDescription to the
|
| - // appropriate state based on the current security policy.
|
| - for (cricket::ContentInfos::iterator iter = sdesc->contents().begin();
|
| - iter != sdesc->contents().end(); ++iter) {
|
| - if (cricket::IsMediaContent(&*iter)) {
|
| - MediaContentDescription* mdesc =
|
| - static_cast<MediaContentDescription*> (iter->description);
|
| - if (mdesc) {
|
| - mdesc->set_crypto_required(type);
|
| - }
|
| - }
|
| - }
|
| -}
|
| -
|
| -static bool GetAudioSsrcByTrackId(const SessionDescription* session_description,
|
| - const std::string& track_id,
|
| - uint32_t* ssrc) {
|
| - const cricket::ContentInfo* audio_info =
|
| - cricket::GetFirstAudioContent(session_description);
|
| - if (!audio_info) {
|
| - LOG(LS_ERROR) << "Audio not used in this call";
|
| - return false;
|
| - }
|
| -
|
| - const cricket::MediaContentDescription* audio_content =
|
| - static_cast<const cricket::MediaContentDescription*>(
|
| - audio_info->description);
|
| - const cricket::StreamParams* stream =
|
| - cricket::GetStreamByIds(audio_content->streams(), "", track_id);
|
| - if (!stream) {
|
| - return false;
|
| - }
|
| -
|
| - *ssrc = stream->first_ssrc();
|
| - return true;
|
| -}
|
| -
|
| -static bool GetTrackIdBySsrc(const SessionDescription* session_description,
|
| - uint32_t ssrc,
|
| - std::string* track_id) {
|
| - ASSERT(track_id != NULL);
|
| -
|
| - const cricket::ContentInfo* audio_info =
|
| - cricket::GetFirstAudioContent(session_description);
|
| - if (audio_info) {
|
| - const cricket::MediaContentDescription* audio_content =
|
| - static_cast<const cricket::MediaContentDescription*>(
|
| - audio_info->description);
|
| -
|
| - const auto* found =
|
| - cricket::GetStreamBySsrc(audio_content->streams(), ssrc);
|
| - if (found) {
|
| - *track_id = found->id;
|
| - return true;
|
| - }
|
| - }
|
| -
|
| - const cricket::ContentInfo* video_info =
|
| - cricket::GetFirstVideoContent(session_description);
|
| - if (video_info) {
|
| - const cricket::MediaContentDescription* video_content =
|
| - static_cast<const cricket::MediaContentDescription*>(
|
| - video_info->description);
|
| -
|
| - const auto* found =
|
| - cricket::GetStreamBySsrc(video_content->streams(), ssrc);
|
| - if (found) {
|
| - *track_id = found->id;
|
| - return true;
|
| - }
|
| - }
|
| - return false;
|
| -}
|
| -
|
| -static bool BadSdp(const std::string& source,
|
| - const std::string& type,
|
| - const std::string& reason,
|
| - std::string* err_desc) {
|
| - std::ostringstream desc;
|
| - desc << "Failed to set " << source;
|
| - if (!type.empty()) {
|
| - desc << " " << type;
|
| - }
|
| - desc << " sdp: " << reason;
|
| -
|
| - if (err_desc) {
|
| - *err_desc = desc.str();
|
| - }
|
| - LOG(LS_ERROR) << desc.str();
|
| - return false;
|
| -}
|
| -
|
| -static bool BadSdp(cricket::ContentSource source,
|
| - const std::string& type,
|
| - const std::string& reason,
|
| - std::string* err_desc) {
|
| - if (source == cricket::CS_LOCAL) {
|
| - return BadSdp("local", type, reason, err_desc);
|
| - } else {
|
| - return BadSdp("remote", type, reason, err_desc);
|
| - }
|
| -}
|
| -
|
| -static bool BadLocalSdp(const std::string& type,
|
| - const std::string& reason,
|
| - std::string* err_desc) {
|
| - return BadSdp(cricket::CS_LOCAL, type, reason, err_desc);
|
| -}
|
| -
|
| -static bool BadRemoteSdp(const std::string& type,
|
| - const std::string& reason,
|
| - std::string* err_desc) {
|
| - return BadSdp(cricket::CS_REMOTE, type, reason, err_desc);
|
| -}
|
| -
|
| -static bool BadOfferSdp(cricket::ContentSource source,
|
| - const std::string& reason,
|
| - std::string* err_desc) {
|
| - return BadSdp(source, SessionDescriptionInterface::kOffer, reason, err_desc);
|
| -}
|
| -
|
| -static bool BadPranswerSdp(cricket::ContentSource source,
|
| - const std::string& reason,
|
| - std::string* err_desc) {
|
| - return BadSdp(source, SessionDescriptionInterface::kPrAnswer,
|
| - reason, err_desc);
|
| -}
|
| -
|
| -static bool BadAnswerSdp(cricket::ContentSource source,
|
| - const std::string& reason,
|
| - std::string* err_desc) {
|
| - return BadSdp(source, SessionDescriptionInterface::kAnswer, reason, err_desc);
|
| -}
|
| -
|
| -#define GET_STRING_OF_STATE(state) \
|
| - case webrtc::WebRtcSession::state: \
|
| - result = #state; \
|
| - break;
|
| -
|
| -static std::string GetStateString(webrtc::WebRtcSession::State state) {
|
| - std::string result;
|
| - switch (state) {
|
| - GET_STRING_OF_STATE(STATE_INIT)
|
| - GET_STRING_OF_STATE(STATE_SENTOFFER)
|
| - GET_STRING_OF_STATE(STATE_RECEIVEDOFFER)
|
| - GET_STRING_OF_STATE(STATE_SENTPRANSWER)
|
| - GET_STRING_OF_STATE(STATE_RECEIVEDPRANSWER)
|
| - GET_STRING_OF_STATE(STATE_INPROGRESS)
|
| - GET_STRING_OF_STATE(STATE_CLOSED)
|
| - default:
|
| - ASSERT(false);
|
| - break;
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -#define GET_STRING_OF_ERROR_CODE(err) \
|
| - case webrtc::WebRtcSession::err: \
|
| - result = #err; \
|
| - break;
|
| -
|
| -static std::string GetErrorCodeString(webrtc::WebRtcSession::Error err) {
|
| - std::string result;
|
| - switch (err) {
|
| - GET_STRING_OF_ERROR_CODE(ERROR_NONE)
|
| - GET_STRING_OF_ERROR_CODE(ERROR_CONTENT)
|
| - GET_STRING_OF_ERROR_CODE(ERROR_TRANSPORT)
|
| - default:
|
| - RTC_DCHECK(false);
|
| - break;
|
| - }
|
| - return result;
|
| -}
|
| -
|
| -static std::string MakeErrorString(const std::string& error,
|
| - const std::string& desc) {
|
| - std::ostringstream ret;
|
| - ret << error << " " << desc;
|
| - return ret.str();
|
| -}
|
| -
|
| -static std::string MakeTdErrorString(const std::string& desc) {
|
| - return MakeErrorString(kPushDownTDFailed, desc);
|
| -}
|
| -
|
| -// Set |option| to the highest-priority value of |key| in the optional
|
| -// constraints if the key is found and has a valid value.
|
| -template <typename T>
|
| -static void SetOptionFromOptionalConstraint(
|
| - const MediaConstraintsInterface* constraints,
|
| - const std::string& key,
|
| - rtc::Optional<T>* option) {
|
| - if (!constraints) {
|
| - return;
|
| - }
|
| - std::string string_value;
|
| - T value;
|
| - if (constraints->GetOptional().FindFirst(key, &string_value)) {
|
| - if (rtc::FromString(string_value, &value)) {
|
| - *option = rtc::Optional<T>(value);
|
| - }
|
| - }
|
| -}
|
| -
|
| -uint32_t ConvertIceTransportTypeToCandidateFilter(
|
| - PeerConnectionInterface::IceTransportsType type) {
|
| - switch (type) {
|
| - case PeerConnectionInterface::kNone:
|
| - return cricket::CF_NONE;
|
| - case PeerConnectionInterface::kRelay:
|
| - return cricket::CF_RELAY;
|
| - case PeerConnectionInterface::kNoHost:
|
| - return (cricket::CF_ALL & ~cricket::CF_HOST);
|
| - case PeerConnectionInterface::kAll:
|
| - return cricket::CF_ALL;
|
| - default: ASSERT(false);
|
| - }
|
| - return cricket::CF_NONE;
|
| -}
|
| -
|
| -// Help class used to remember if a a remote peer has requested ice restart by
|
| -// by sending a description with new ice ufrag and password.
|
| -class IceRestartAnswerLatch {
|
| - public:
|
| - IceRestartAnswerLatch() : ice_restart_(false) { }
|
| -
|
| - // Returns true if CheckForRemoteIceRestart has been called with a new session
|
| - // description where ice password and ufrag has changed since last time
|
| - // Reset() was called.
|
| - bool Get() const {
|
| - return ice_restart_;
|
| - }
|
| -
|
| - void Reset() {
|
| - if (ice_restart_) {
|
| - ice_restart_ = false;
|
| - }
|
| - }
|
| -
|
| - // This method has two purposes: 1. Return whether |new_desc| requests
|
| - // an ICE restart (i.e., new ufrag/pwd). 2. If it requests an ICE restart
|
| - // and it is an OFFER, remember this in |ice_restart_| so that the next
|
| - // Local Answer will be created with new ufrag and pwd.
|
| - bool CheckForRemoteIceRestart(const SessionDescriptionInterface* old_desc,
|
| - const SessionDescriptionInterface* new_desc) {
|
| - if (!old_desc) {
|
| - return false;
|
| - }
|
| - const SessionDescription* new_sd = new_desc->description();
|
| - const SessionDescription* old_sd = old_desc->description();
|
| - const ContentInfos& contents = new_sd->contents();
|
| - for (size_t index = 0; index < contents.size(); ++index) {
|
| - const ContentInfo* cinfo = &contents[index];
|
| - if (cinfo->rejected) {
|
| - continue;
|
| - }
|
| - // If the content isn't rejected, check if ufrag and password has
|
| - // changed.
|
| - const cricket::TransportDescription* new_transport_desc =
|
| - new_sd->GetTransportDescriptionByName(cinfo->name);
|
| - const cricket::TransportDescription* old_transport_desc =
|
| - old_sd->GetTransportDescriptionByName(cinfo->name);
|
| - if (!new_transport_desc || !old_transport_desc) {
|
| - // No transport description exist. This is not an ice restart.
|
| - continue;
|
| - }
|
| - if (cricket::IceCredentialsChanged(old_transport_desc->ice_ufrag,
|
| - old_transport_desc->ice_pwd,
|
| - new_transport_desc->ice_ufrag,
|
| - new_transport_desc->ice_pwd)) {
|
| - LOG(LS_INFO) << "Remote peer request ice restart.";
|
| - if (new_desc->type() == SessionDescriptionInterface::kOffer) {
|
| - ice_restart_ = true;
|
| - }
|
| - return true;
|
| - }
|
| - }
|
| - return false;
|
| - }
|
| -
|
| - private:
|
| - bool ice_restart_;
|
| -};
|
| -
|
| -WebRtcSession::WebRtcSession(webrtc::MediaControllerInterface* media_controller,
|
| - rtc::Thread* signaling_thread,
|
| - rtc::Thread* worker_thread,
|
| - cricket::PortAllocator* port_allocator)
|
| - : signaling_thread_(signaling_thread),
|
| - worker_thread_(worker_thread),
|
| - port_allocator_(port_allocator),
|
| - // RFC 3264: The numeric value of the session id and version in the
|
| - // o line MUST be representable with a "64 bit signed integer".
|
| - // Due to this constraint session id |sid_| is max limited to LLONG_MAX.
|
| - sid_(rtc::ToString(rtc::CreateRandomId64() & LLONG_MAX)),
|
| - transport_controller_(new cricket::TransportController(signaling_thread,
|
| - worker_thread,
|
| - port_allocator)),
|
| - media_controller_(media_controller),
|
| - channel_manager_(media_controller_->channel_manager()),
|
| - ice_observer_(NULL),
|
| - ice_connection_state_(PeerConnectionInterface::kIceConnectionNew),
|
| - ice_connection_receiving_(true),
|
| - older_version_remote_peer_(false),
|
| - dtls_enabled_(false),
|
| - data_channel_type_(cricket::DCT_NONE),
|
| - ice_restart_latch_(new IceRestartAnswerLatch),
|
| - metrics_observer_(NULL) {
|
| - transport_controller_->SetIceRole(cricket::ICEROLE_CONTROLLED);
|
| - transport_controller_->SignalConnectionState.connect(
|
| - this, &WebRtcSession::OnTransportControllerConnectionState);
|
| - transport_controller_->SignalReceiving.connect(
|
| - this, &WebRtcSession::OnTransportControllerReceiving);
|
| - transport_controller_->SignalGatheringState.connect(
|
| - this, &WebRtcSession::OnTransportControllerGatheringState);
|
| - transport_controller_->SignalCandidatesGathered.connect(
|
| - this, &WebRtcSession::OnTransportControllerCandidatesGathered);
|
| -}
|
| -
|
| -WebRtcSession::~WebRtcSession() {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - // Destroy video_channel_ first since it may have a pointer to the
|
| - // voice_channel_.
|
| - if (video_channel_) {
|
| - SignalVideoChannelDestroyed();
|
| - channel_manager_->DestroyVideoChannel(video_channel_.release());
|
| - }
|
| - if (voice_channel_) {
|
| - SignalVoiceChannelDestroyed();
|
| - channel_manager_->DestroyVoiceChannel(voice_channel_.release());
|
| - }
|
| - if (data_channel_) {
|
| - SignalDataChannelDestroyed();
|
| - channel_manager_->DestroyDataChannel(data_channel_.release());
|
| - }
|
| - SignalDestroyed();
|
| -
|
| - LOG(LS_INFO) << "Session: " << id() << " is destroyed.";
|
| -}
|
| -
|
| -bool WebRtcSession::Initialize(
|
| - const PeerConnectionFactoryInterface::Options& options,
|
| - const MediaConstraintsInterface* constraints,
|
| - rtc::scoped_ptr<DtlsIdentityStoreInterface> dtls_identity_store,
|
| - const PeerConnectionInterface::RTCConfiguration& rtc_configuration) {
|
| - bundle_policy_ = rtc_configuration.bundle_policy;
|
| - rtcp_mux_policy_ = rtc_configuration.rtcp_mux_policy;
|
| - video_options_.disable_prerenderer_smoothing =
|
| - rtc::Optional<bool>(rtc_configuration.disable_prerenderer_smoothing);
|
| - transport_controller_->SetSslMaxProtocolVersion(options.ssl_max_version);
|
| -
|
| - // Obtain a certificate from RTCConfiguration if any were provided (optional).
|
| - rtc::scoped_refptr<rtc::RTCCertificate> certificate;
|
| - if (!rtc_configuration.certificates.empty()) {
|
| - // TODO(hbos,torbjorng): Decide on certificate-selection strategy instead of
|
| - // just picking the first one. The decision should be made based on the DTLS
|
| - // handshake. The DTLS negotiations need to know about all certificates.
|
| - certificate = rtc_configuration.certificates[0];
|
| - }
|
| -
|
| - SetIceConfig(ParseIceConfig(rtc_configuration));
|
| -
|
| - // TODO(perkj): Take |constraints| into consideration. Return false if not all
|
| - // mandatory constraints can be fulfilled. Note that |constraints|
|
| - // can be null.
|
| - bool value;
|
| -
|
| - if (options.disable_encryption) {
|
| - dtls_enabled_ = false;
|
| - } else {
|
| - // Enable DTLS by default if we have an identity store or a certificate.
|
| - dtls_enabled_ = (dtls_identity_store || certificate);
|
| - // |constraints| can override the default |dtls_enabled_| value.
|
| - if (FindConstraint(constraints, MediaConstraintsInterface::kEnableDtlsSrtp,
|
| - &value, nullptr)) {
|
| - dtls_enabled_ = value;
|
| - }
|
| - }
|
| -
|
| - // Enable creation of RTP data channels if the kEnableRtpDataChannels is set.
|
| - // It takes precendence over the disable_sctp_data_channels
|
| - // PeerConnectionFactoryInterface::Options.
|
| - if (FindConstraint(
|
| - constraints, MediaConstraintsInterface::kEnableRtpDataChannels,
|
| - &value, NULL) && value) {
|
| - LOG(LS_INFO) << "Allowing RTP data engine.";
|
| - data_channel_type_ = cricket::DCT_RTP;
|
| - } else {
|
| - // DTLS has to be enabled to use SCTP.
|
| - if (!options.disable_sctp_data_channels && dtls_enabled_) {
|
| - LOG(LS_INFO) << "Allowing SCTP data engine.";
|
| - data_channel_type_ = cricket::DCT_SCTP;
|
| - }
|
| - }
|
| -
|
| - // Find DSCP constraint.
|
| - if (FindConstraint(
|
| - constraints,
|
| - MediaConstraintsInterface::kEnableDscp,
|
| - &value, NULL)) {
|
| - audio_options_.dscp = rtc::Optional<bool>(value);
|
| - video_options_.dscp = rtc::Optional<bool>(value);
|
| - }
|
| -
|
| - // Find Suspend Below Min Bitrate constraint.
|
| - if (FindConstraint(
|
| - constraints,
|
| - MediaConstraintsInterface::kEnableVideoSuspendBelowMinBitrate,
|
| - &value,
|
| - NULL)) {
|
| - video_options_.suspend_below_min_bitrate = rtc::Optional<bool>(value);
|
| - }
|
| -
|
| - SetOptionFromOptionalConstraint(constraints,
|
| - MediaConstraintsInterface::kScreencastMinBitrate,
|
| - &video_options_.screencast_min_bitrate_kbps);
|
| -
|
| - // Find constraints for cpu overuse detection.
|
| - SetOptionFromOptionalConstraint(constraints,
|
| - MediaConstraintsInterface::kCpuOveruseDetection,
|
| - &video_options_.cpu_overuse_detection);
|
| -
|
| - SetOptionFromOptionalConstraint(constraints,
|
| - MediaConstraintsInterface::kCombinedAudioVideoBwe,
|
| - &audio_options_.combined_audio_video_bwe);
|
| -
|
| - audio_options_.audio_jitter_buffer_max_packets =
|
| - rtc::Optional<int>(rtc_configuration.audio_jitter_buffer_max_packets);
|
| -
|
| - audio_options_.audio_jitter_buffer_fast_accelerate = rtc::Optional<bool>(
|
| - rtc_configuration.audio_jitter_buffer_fast_accelerate);
|
| -
|
| - if (!dtls_enabled_) {
|
| - // Construct with DTLS disabled.
|
| - webrtc_session_desc_factory_.reset(new WebRtcSessionDescriptionFactory(
|
| - signaling_thread(), channel_manager_, this, id()));
|
| - } else {
|
| - // Construct with DTLS enabled.
|
| - if (!certificate) {
|
| - // Use the |dtls_identity_store| to generate a certificate.
|
| - RTC_DCHECK(dtls_identity_store);
|
| - webrtc_session_desc_factory_.reset(new WebRtcSessionDescriptionFactory(
|
| - signaling_thread(), channel_manager_, std::move(dtls_identity_store),
|
| - this, id()));
|
| - } else {
|
| - // Use the already generated certificate.
|
| - webrtc_session_desc_factory_.reset(new WebRtcSessionDescriptionFactory(
|
| - signaling_thread(), channel_manager_, certificate, this, id()));
|
| - }
|
| - }
|
| -
|
| - webrtc_session_desc_factory_->SignalCertificateReady.connect(
|
| - this, &WebRtcSession::OnCertificateReady);
|
| -
|
| - if (options.disable_encryption) {
|
| - webrtc_session_desc_factory_->SetSdesPolicy(cricket::SEC_DISABLED);
|
| - }
|
| - port_allocator()->set_candidate_filter(
|
| - ConvertIceTransportTypeToCandidateFilter(rtc_configuration.type));
|
| -
|
| - return true;
|
| -}
|
| -
|
| -void WebRtcSession::Close() {
|
| - SetState(STATE_CLOSED);
|
| - RemoveUnusedChannels(nullptr);
|
| - ASSERT(!voice_channel_);
|
| - ASSERT(!video_channel_);
|
| - ASSERT(!data_channel_);
|
| -}
|
| -
|
| -void WebRtcSession::SetSdesPolicy(cricket::SecurePolicy secure_policy) {
|
| - webrtc_session_desc_factory_->SetSdesPolicy(secure_policy);
|
| -}
|
| -
|
| -cricket::SecurePolicy WebRtcSession::SdesPolicy() const {
|
| - return webrtc_session_desc_factory_->SdesPolicy();
|
| -}
|
| -
|
| -bool WebRtcSession::GetSslRole(const std::string& transport_name,
|
| - rtc::SSLRole* role) {
|
| - if (!local_desc_ || !remote_desc_) {
|
| - LOG(LS_INFO) << "Local and Remote descriptions must be applied to get "
|
| - << "SSL Role of the session.";
|
| - return false;
|
| - }
|
| -
|
| - return transport_controller_->GetSslRole(transport_name, role);
|
| -}
|
| -
|
| -bool WebRtcSession::GetSslRole(const cricket::BaseChannel* channel,
|
| - rtc::SSLRole* role) {
|
| - return channel && GetSslRole(channel->transport_name(), role);
|
| -}
|
| -
|
| -void WebRtcSession::CreateOffer(
|
| - CreateSessionDescriptionObserver* observer,
|
| - const PeerConnectionInterface::RTCOfferAnswerOptions& options,
|
| - const cricket::MediaSessionOptions& session_options) {
|
| - webrtc_session_desc_factory_->CreateOffer(observer, options, session_options);
|
| -}
|
| -
|
| -void WebRtcSession::CreateAnswer(
|
| - CreateSessionDescriptionObserver* observer,
|
| - const MediaConstraintsInterface* constraints,
|
| - const cricket::MediaSessionOptions& session_options) {
|
| - webrtc_session_desc_factory_->CreateAnswer(observer, constraints,
|
| - session_options);
|
| -}
|
| -
|
| -bool WebRtcSession::SetLocalDescription(SessionDescriptionInterface* desc,
|
| - std::string* err_desc) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| -
|
| - // Takes the ownership of |desc| regardless of the result.
|
| - rtc::scoped_ptr<SessionDescriptionInterface> desc_temp(desc);
|
| -
|
| - // Validate SDP.
|
| - if (!ValidateSessionDescription(desc, cricket::CS_LOCAL, err_desc)) {
|
| - return false;
|
| - }
|
| -
|
| - // Update the initial_offerer flag if this session is the initial_offerer.
|
| - Action action = GetAction(desc->type());
|
| - if (state() == STATE_INIT && action == kOffer) {
|
| - initial_offerer_ = true;
|
| - transport_controller_->SetIceRole(cricket::ICEROLE_CONTROLLING);
|
| - }
|
| -
|
| - cricket::SecurePolicy sdes_policy =
|
| - webrtc_session_desc_factory_->SdesPolicy();
|
| - cricket::CryptoType crypto_required = dtls_enabled_ ?
|
| - cricket::CT_DTLS : (sdes_policy == cricket::SEC_REQUIRED ?
|
| - cricket::CT_SDES : cricket::CT_NONE);
|
| - // Update the MediaContentDescription crypto settings as per the policy set.
|
| - UpdateSessionDescriptionSecurePolicy(crypto_required, desc->description());
|
| -
|
| - local_desc_.reset(desc_temp.release());
|
| -
|
| - // Transport and Media channels will be created only when offer is set.
|
| - if (action == kOffer && !CreateChannels(local_desc_->description())) {
|
| - // TODO(mallinath) - Handle CreateChannel failure, as new local description
|
| - // is applied. Restore back to old description.
|
| - return BadLocalSdp(desc->type(), kCreateChannelFailed, err_desc);
|
| - }
|
| -
|
| - // Remove unused channels if MediaContentDescription is rejected.
|
| - RemoveUnusedChannels(local_desc_->description());
|
| -
|
| - if (!UpdateSessionState(action, cricket::CS_LOCAL, err_desc)) {
|
| - return false;
|
| - }
|
| -
|
| - if (remote_desc_) {
|
| - // Now that we have a local description, we can push down remote candidates.
|
| - UseCandidatesInSessionDescription(remote_desc_.get());
|
| - }
|
| -
|
| - if (error() != ERROR_NONE) {
|
| - return BadLocalSdp(desc->type(), GetSessionErrorMsg(), err_desc);
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::SetRemoteDescription(SessionDescriptionInterface* desc,
|
| - std::string* err_desc) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| -
|
| - // Takes the ownership of |desc| regardless of the result.
|
| - rtc::scoped_ptr<SessionDescriptionInterface> desc_temp(desc);
|
| -
|
| - // Validate SDP.
|
| - if (!ValidateSessionDescription(desc, cricket::CS_REMOTE, err_desc)) {
|
| - return false;
|
| - }
|
| -
|
| - rtc::scoped_ptr<SessionDescriptionInterface> old_remote_desc(
|
| - remote_desc_.release());
|
| - remote_desc_.reset(desc_temp.release());
|
| -
|
| - // Transport and Media channels will be created only when offer is set.
|
| - Action action = GetAction(desc->type());
|
| - if (action == kOffer && !CreateChannels(desc->description())) {
|
| - // TODO(mallinath) - Handle CreateChannel failure, as new local description
|
| - // is applied. Restore back to old description.
|
| - return BadRemoteSdp(desc->type(), kCreateChannelFailed, err_desc);
|
| - }
|
| -
|
| - // Remove unused channels if MediaContentDescription is rejected.
|
| - RemoveUnusedChannels(desc->description());
|
| -
|
| - // NOTE: Candidates allocation will be initiated only when SetLocalDescription
|
| - // is called.
|
| - if (!UpdateSessionState(action, cricket::CS_REMOTE, err_desc)) {
|
| - return false;
|
| - }
|
| -
|
| - if (local_desc_ && !UseCandidatesInSessionDescription(desc)) {
|
| - return BadRemoteSdp(desc->type(), kInvalidCandidates, err_desc);
|
| - }
|
| -
|
| - // Check if this new SessionDescription contains new ice ufrag and password
|
| - // that indicates the remote peer requests ice restart.
|
| - bool ice_restart =
|
| - ice_restart_latch_->CheckForRemoteIceRestart(old_remote_desc.get(), desc);
|
| - // We retain all received candidates only if ICE is not restarted.
|
| - // When ICE is restarted, all previous candidates belong to an old generation
|
| - // and should not be kept.
|
| - // TODO(deadbeef): This goes against the W3C spec which says the remote
|
| - // description should only contain candidates from the last set remote
|
| - // description plus any candidates added since then. We should remove this
|
| - // once we're sure it won't break anything.
|
| - if (!ice_restart) {
|
| - WebRtcSessionDescriptionFactory::CopyCandidatesFromSessionDescription(
|
| - old_remote_desc.get(), desc);
|
| - }
|
| -
|
| - if (error() != ERROR_NONE) {
|
| - return BadRemoteSdp(desc->type(), GetSessionErrorMsg(), err_desc);
|
| - }
|
| -
|
| - // Set the the ICE connection state to connecting since the connection may
|
| - // become writable with peer reflexive candidates before any remote candidate
|
| - // is signaled.
|
| - // TODO(pthatcher): This is a short-term solution for crbug/446908. A real fix
|
| - // is to have a new signal the indicates a change in checking state from the
|
| - // transport and expose a new checking() member from transport that can be
|
| - // read to determine the current checking state. The existing SignalConnecting
|
| - // actually means "gathering candidates", so cannot be be used here.
|
| - if (desc->type() != SessionDescriptionInterface::kOffer &&
|
| - ice_connection_state_ == PeerConnectionInterface::kIceConnectionNew) {
|
| - SetIceConnectionState(PeerConnectionInterface::kIceConnectionChecking);
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -void WebRtcSession::LogState(State old_state, State new_state) {
|
| - LOG(LS_INFO) << "Session:" << id()
|
| - << " Old state:" << GetStateString(old_state)
|
| - << " New state:" << GetStateString(new_state);
|
| -}
|
| -
|
| -void WebRtcSession::SetState(State state) {
|
| - ASSERT(signaling_thread_->IsCurrent());
|
| - if (state != state_) {
|
| - LogState(state_, state);
|
| - state_ = state;
|
| - SignalState(this, state_);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::SetError(Error error, const std::string& error_desc) {
|
| - ASSERT(signaling_thread_->IsCurrent());
|
| - if (error != error_) {
|
| - error_ = error;
|
| - error_desc_ = error_desc;
|
| - }
|
| -}
|
| -
|
| -bool WebRtcSession::UpdateSessionState(
|
| - Action action, cricket::ContentSource source,
|
| - std::string* err_desc) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| -
|
| - // If there's already a pending error then no state transition should happen.
|
| - // But all call-sites should be verifying this before calling us!
|
| - ASSERT(error() == ERROR_NONE);
|
| - std::string td_err;
|
| - if (action == kOffer) {
|
| - if (!PushdownTransportDescription(source, cricket::CA_OFFER, &td_err)) {
|
| - return BadOfferSdp(source, MakeTdErrorString(td_err), err_desc);
|
| - }
|
| - SetState(source == cricket::CS_LOCAL ? STATE_SENTOFFER
|
| - : STATE_RECEIVEDOFFER);
|
| - if (!PushdownMediaDescription(cricket::CA_OFFER, source, err_desc)) {
|
| - SetError(ERROR_CONTENT, *err_desc);
|
| - }
|
| - if (error() != ERROR_NONE) {
|
| - return BadOfferSdp(source, GetSessionErrorMsg(), err_desc);
|
| - }
|
| - } else if (action == kPrAnswer) {
|
| - if (!PushdownTransportDescription(source, cricket::CA_PRANSWER, &td_err)) {
|
| - return BadPranswerSdp(source, MakeTdErrorString(td_err), err_desc);
|
| - }
|
| - EnableChannels();
|
| - SetState(source == cricket::CS_LOCAL ? STATE_SENTPRANSWER
|
| - : STATE_RECEIVEDPRANSWER);
|
| - if (!PushdownMediaDescription(cricket::CA_PRANSWER, source, err_desc)) {
|
| - SetError(ERROR_CONTENT, *err_desc);
|
| - }
|
| - if (error() != ERROR_NONE) {
|
| - return BadPranswerSdp(source, GetSessionErrorMsg(), err_desc);
|
| - }
|
| - } else if (action == kAnswer) {
|
| - const cricket::ContentGroup* local_bundle =
|
| - local_desc_->description()->GetGroupByName(cricket::GROUP_TYPE_BUNDLE);
|
| - const cricket::ContentGroup* remote_bundle =
|
| - remote_desc_->description()->GetGroupByName(cricket::GROUP_TYPE_BUNDLE);
|
| - if (local_bundle && remote_bundle) {
|
| - // The answerer decides the transport to bundle on.
|
| - const cricket::ContentGroup* answer_bundle =
|
| - (source == cricket::CS_LOCAL ? local_bundle : remote_bundle);
|
| - if (!EnableBundle(*answer_bundle)) {
|
| - LOG(LS_WARNING) << "Failed to enable BUNDLE.";
|
| - return BadAnswerSdp(source, kEnableBundleFailed, err_desc);
|
| - }
|
| - }
|
| - // Only push down the transport description after enabling BUNDLE; we don't
|
| - // want to push down a description on a transport about to be destroyed.
|
| - if (!PushdownTransportDescription(source, cricket::CA_ANSWER, &td_err)) {
|
| - return BadAnswerSdp(source, MakeTdErrorString(td_err), err_desc);
|
| - }
|
| - EnableChannels();
|
| - SetState(STATE_INPROGRESS);
|
| - if (!PushdownMediaDescription(cricket::CA_ANSWER, source, err_desc)) {
|
| - SetError(ERROR_CONTENT, *err_desc);
|
| - }
|
| - if (error() != ERROR_NONE) {
|
| - return BadAnswerSdp(source, GetSessionErrorMsg(), err_desc);
|
| - }
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -WebRtcSession::Action WebRtcSession::GetAction(const std::string& type) {
|
| - if (type == SessionDescriptionInterface::kOffer) {
|
| - return WebRtcSession::kOffer;
|
| - } else if (type == SessionDescriptionInterface::kPrAnswer) {
|
| - return WebRtcSession::kPrAnswer;
|
| - } else if (type == SessionDescriptionInterface::kAnswer) {
|
| - return WebRtcSession::kAnswer;
|
| - }
|
| - ASSERT(false && "unknown action type");
|
| - return WebRtcSession::kOffer;
|
| -}
|
| -
|
| -bool WebRtcSession::PushdownMediaDescription(
|
| - cricket::ContentAction action,
|
| - cricket::ContentSource source,
|
| - std::string* err) {
|
| - auto set_content = [this, action, source, err](cricket::BaseChannel* ch) {
|
| - if (!ch) {
|
| - return true;
|
| - } else if (source == cricket::CS_LOCAL) {
|
| - return ch->PushdownLocalDescription(local_desc_->description(), action,
|
| - err);
|
| - } else {
|
| - return ch->PushdownRemoteDescription(remote_desc_->description(), action,
|
| - err);
|
| - }
|
| - };
|
| -
|
| - return (set_content(voice_channel()) &&
|
| - set_content(video_channel()) &&
|
| - set_content(data_channel()));
|
| -}
|
| -
|
| -bool WebRtcSession::PushdownTransportDescription(cricket::ContentSource source,
|
| - cricket::ContentAction action,
|
| - std::string* error_desc) {
|
| - RTC_DCHECK(signaling_thread()->IsCurrent());
|
| -
|
| - if (source == cricket::CS_LOCAL) {
|
| - return PushdownLocalTransportDescription(local_desc_->description(), action,
|
| - error_desc);
|
| - }
|
| - return PushdownRemoteTransportDescription(remote_desc_->description(), action,
|
| - error_desc);
|
| -}
|
| -
|
| -bool WebRtcSession::PushdownLocalTransportDescription(
|
| - const SessionDescription* sdesc,
|
| - cricket::ContentAction action,
|
| - std::string* err) {
|
| - RTC_DCHECK(signaling_thread()->IsCurrent());
|
| -
|
| - if (!sdesc) {
|
| - return false;
|
| - }
|
| -
|
| - for (const TransportInfo& tinfo : sdesc->transport_infos()) {
|
| - if (!transport_controller_->SetLocalTransportDescription(
|
| - tinfo.content_name, tinfo.description, action, err)) {
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::PushdownRemoteTransportDescription(
|
| - const SessionDescription* sdesc,
|
| - cricket::ContentAction action,
|
| - std::string* err) {
|
| - RTC_DCHECK(signaling_thread()->IsCurrent());
|
| -
|
| - if (!sdesc) {
|
| - return false;
|
| - }
|
| -
|
| - for (const TransportInfo& tinfo : sdesc->transport_infos()) {
|
| - if (!transport_controller_->SetRemoteTransportDescription(
|
| - tinfo.content_name, tinfo.description, action, err)) {
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::GetTransportDescription(
|
| - const SessionDescription* description,
|
| - const std::string& content_name,
|
| - cricket::TransportDescription* tdesc) {
|
| - if (!description || !tdesc) {
|
| - return false;
|
| - }
|
| - const TransportInfo* transport_info =
|
| - description->GetTransportInfoByName(content_name);
|
| - if (!transport_info) {
|
| - return false;
|
| - }
|
| - *tdesc = transport_info->description;
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::GetTransportStats(SessionStats* stats) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - return (GetChannelTransportStats(voice_channel(), stats) &&
|
| - GetChannelTransportStats(video_channel(), stats) &&
|
| - GetChannelTransportStats(data_channel(), stats));
|
| -}
|
| -
|
| -bool WebRtcSession::GetChannelTransportStats(cricket::BaseChannel* ch,
|
| - SessionStats* stats) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!ch) {
|
| - // Not using this channel.
|
| - return true;
|
| - }
|
| -
|
| - const std::string& content_name = ch->content_name();
|
| - const std::string& transport_name = ch->transport_name();
|
| - stats->proxy_to_transport[content_name] = transport_name;
|
| - if (stats->transport_stats.find(transport_name) !=
|
| - stats->transport_stats.end()) {
|
| - // Transport stats already done for this transport.
|
| - return true;
|
| - }
|
| -
|
| - cricket::TransportStats tstats;
|
| - if (!transport_controller_->GetStats(transport_name, &tstats)) {
|
| - return false;
|
| - }
|
| -
|
| - stats->transport_stats[transport_name] = tstats;
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::GetLocalCertificate(
|
| - const std::string& transport_name,
|
| - rtc::scoped_refptr<rtc::RTCCertificate>* certificate) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - return transport_controller_->GetLocalCertificate(transport_name,
|
| - certificate);
|
| -}
|
| -
|
| -bool WebRtcSession::GetRemoteSSLCertificate(const std::string& transport_name,
|
| - rtc::SSLCertificate** cert) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - return transport_controller_->GetRemoteSSLCertificate(transport_name, cert);
|
| -}
|
| -
|
| -cricket::BaseChannel* WebRtcSession::GetChannel(
|
| - const std::string& content_name) {
|
| - if (voice_channel() && voice_channel()->content_name() == content_name) {
|
| - return voice_channel();
|
| - }
|
| - if (video_channel() && video_channel()->content_name() == content_name) {
|
| - return video_channel();
|
| - }
|
| - if (data_channel() && data_channel()->content_name() == content_name) {
|
| - return data_channel();
|
| - }
|
| - return nullptr;
|
| -}
|
| -
|
| -bool WebRtcSession::EnableBundle(const cricket::ContentGroup& bundle) {
|
| - const std::string* first_content_name = bundle.FirstContentName();
|
| - if (!first_content_name) {
|
| - LOG(LS_WARNING) << "Tried to BUNDLE with no contents.";
|
| - return false;
|
| - }
|
| - const std::string& transport_name = *first_content_name;
|
| - cricket::BaseChannel* first_channel = GetChannel(transport_name);
|
| -
|
| - auto maybe_set_transport = [this, bundle, transport_name,
|
| - first_channel](cricket::BaseChannel* ch) {
|
| - if (!ch || !bundle.HasContentName(ch->content_name())) {
|
| - return true;
|
| - }
|
| -
|
| - if (ch->transport_name() == transport_name) {
|
| - LOG(LS_INFO) << "BUNDLE already enabled for " << ch->content_name()
|
| - << " on " << transport_name << ".";
|
| - return true;
|
| - }
|
| -
|
| - if (!ch->SetTransport(transport_name)) {
|
| - LOG(LS_WARNING) << "Failed to enable BUNDLE for " << ch->content_name();
|
| - return false;
|
| - }
|
| - LOG(LS_INFO) << "Enabled BUNDLE for " << ch->content_name() << " on "
|
| - << transport_name << ".";
|
| - return true;
|
| - };
|
| -
|
| - if (!maybe_set_transport(voice_channel()) ||
|
| - !maybe_set_transport(video_channel()) ||
|
| - !maybe_set_transport(data_channel())) {
|
| - return false;
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::ProcessIceMessage(const IceCandidateInterface* candidate) {
|
| - if (!remote_desc_) {
|
| - LOG(LS_ERROR) << "ProcessIceMessage: ICE candidates can't be added "
|
| - << "without any remote session description.";
|
| - return false;
|
| - }
|
| -
|
| - if (!candidate) {
|
| - LOG(LS_ERROR) << "ProcessIceMessage: Candidate is NULL.";
|
| - return false;
|
| - }
|
| -
|
| - bool valid = false;
|
| - bool ready = ReadyToUseRemoteCandidate(candidate, NULL, &valid);
|
| - if (!valid) {
|
| - return false;
|
| - }
|
| -
|
| - // Add this candidate to the remote session description.
|
| - if (!remote_desc_->AddCandidate(candidate)) {
|
| - LOG(LS_ERROR) << "ProcessIceMessage: Candidate cannot be used.";
|
| - return false;
|
| - }
|
| -
|
| - if (ready) {
|
| - return UseCandidate(candidate);
|
| - } else {
|
| - LOG(LS_INFO) << "ProcessIceMessage: Not ready to use candidate.";
|
| - return true;
|
| - }
|
| -}
|
| -
|
| -bool WebRtcSession::SetIceTransports(
|
| - PeerConnectionInterface::IceTransportsType type) {
|
| - return port_allocator()->set_candidate_filter(
|
| - ConvertIceTransportTypeToCandidateFilter(type));
|
| -}
|
| -
|
| -cricket::IceConfig WebRtcSession::ParseIceConfig(
|
| - const PeerConnectionInterface::RTCConfiguration& config) const {
|
| - cricket::IceConfig ice_config;
|
| - ice_config.receiving_timeout_ms = config.ice_connection_receiving_timeout;
|
| - ice_config.backup_connection_ping_interval =
|
| - config.ice_backup_candidate_pair_ping_interval;
|
| - ice_config.gather_continually = (config.continual_gathering_policy ==
|
| - PeerConnectionInterface::GATHER_CONTINUALLY);
|
| - return ice_config;
|
| -}
|
| -
|
| -void WebRtcSession::SetIceConfig(const cricket::IceConfig& config) {
|
| - transport_controller_->SetIceConfig(config);
|
| -}
|
| -
|
| -void WebRtcSession::MaybeStartGathering() {
|
| - transport_controller_->MaybeStartGathering();
|
| -}
|
| -
|
| -bool WebRtcSession::GetLocalTrackIdBySsrc(uint32_t ssrc,
|
| - std::string* track_id) {
|
| - if (!local_desc_) {
|
| - return false;
|
| - }
|
| - return webrtc::GetTrackIdBySsrc(local_desc_->description(), ssrc, track_id);
|
| -}
|
| -
|
| -bool WebRtcSession::GetRemoteTrackIdBySsrc(uint32_t ssrc,
|
| - std::string* track_id) {
|
| - if (!remote_desc_) {
|
| - return false;
|
| - }
|
| - return webrtc::GetTrackIdBySsrc(remote_desc_->description(), ssrc, track_id);
|
| -}
|
| -
|
| -std::string WebRtcSession::BadStateErrMsg(State state) {
|
| - std::ostringstream desc;
|
| - desc << "Called in wrong state: " << GetStateString(state);
|
| - return desc.str();
|
| -}
|
| -
|
| -void WebRtcSession::SetAudioPlayout(uint32_t ssrc, bool enable) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!voice_channel_) {
|
| - LOG(LS_ERROR) << "SetAudioPlayout: No audio channel exists.";
|
| - return;
|
| - }
|
| - if (!voice_channel_->SetOutputVolume(ssrc, enable ? 1 : 0)) {
|
| - // Allow that SetOutputVolume fail if |enable| is false but assert
|
| - // otherwise. This in the normal case when the underlying media channel has
|
| - // already been deleted.
|
| - ASSERT(enable == false);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::SetAudioSend(uint32_t ssrc,
|
| - bool enable,
|
| - const cricket::AudioOptions& options,
|
| - cricket::AudioRenderer* renderer) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!voice_channel_) {
|
| - LOG(LS_ERROR) << "SetAudioSend: No audio channel exists.";
|
| - return;
|
| - }
|
| - if (!voice_channel_->SetAudioSend(ssrc, enable, &options, renderer)) {
|
| - LOG(LS_ERROR) << "SetAudioSend: ssrc is incorrect: " << ssrc;
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::SetAudioPlayoutVolume(uint32_t ssrc, double volume) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - ASSERT(volume >= 0 && volume <= 10);
|
| - if (!voice_channel_) {
|
| - LOG(LS_ERROR) << "SetAudioPlayoutVolume: No audio channel exists.";
|
| - return;
|
| - }
|
| -
|
| - if (!voice_channel_->SetOutputVolume(ssrc, volume)) {
|
| - ASSERT(false);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::SetRawAudioSink(uint32_t ssrc,
|
| - rtc::scoped_ptr<AudioSinkInterface> sink) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!voice_channel_)
|
| - return;
|
| -
|
| - voice_channel_->SetRawAudioSink(ssrc, std::move(sink));
|
| -}
|
| -
|
| -bool WebRtcSession::SetCaptureDevice(uint32_t ssrc,
|
| - cricket::VideoCapturer* camera) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| -
|
| - if (!video_channel_) {
|
| - // |video_channel_| doesnt't exist. Probably because the remote end doesnt't
|
| - // support video.
|
| - LOG(LS_WARNING) << "Video not used in this call.";
|
| - return false;
|
| - }
|
| - if (!video_channel_->SetCapturer(ssrc, camera)) {
|
| - // Allow that SetCapturer fail if |camera| is NULL but assert otherwise.
|
| - // This in the normal case when the underlying media channel has already
|
| - // been deleted.
|
| - ASSERT(camera == NULL);
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -void WebRtcSession::SetVideoPlayout(
|
| - uint32_t ssrc,
|
| - bool enable,
|
| - rtc::VideoSinkInterface<cricket::VideoFrame>* sink) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!video_channel_) {
|
| - LOG(LS_WARNING) << "SetVideoPlayout: No video channel exists.";
|
| - return;
|
| - }
|
| - if (!video_channel_->SetSink(ssrc, enable ? sink : NULL)) {
|
| - // Allow that SetSink fail if |sink| is NULL but assert otherwise.
|
| - // This in the normal case when the underlying media channel has already
|
| - // been deleted.
|
| - ASSERT(sink == NULL);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::SetVideoSend(uint32_t ssrc,
|
| - bool enable,
|
| - const cricket::VideoOptions* options) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!video_channel_) {
|
| - LOG(LS_WARNING) << "SetVideoSend: No video channel exists.";
|
| - return;
|
| - }
|
| - if (!video_channel_->SetVideoSend(ssrc, enable, options)) {
|
| - // Allow that MuteStream fail if |enable| is false but assert otherwise.
|
| - // This in the normal case when the underlying media channel has already
|
| - // been deleted.
|
| - ASSERT(enable == false);
|
| - }
|
| -}
|
| -
|
| -bool WebRtcSession::CanInsertDtmf(const std::string& track_id) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!voice_channel_) {
|
| - LOG(LS_ERROR) << "CanInsertDtmf: No audio channel exists.";
|
| - return false;
|
| - }
|
| - uint32_t send_ssrc = 0;
|
| - // The Dtmf is negotiated per channel not ssrc, so we only check if the ssrc
|
| - // exists.
|
| - if (!local_desc_ ||
|
| - !GetAudioSsrcByTrackId(local_desc_->description(), track_id,
|
| - &send_ssrc)) {
|
| - LOG(LS_ERROR) << "CanInsertDtmf: Track does not exist: " << track_id;
|
| - return false;
|
| - }
|
| - return voice_channel_->CanInsertDtmf();
|
| -}
|
| -
|
| -bool WebRtcSession::InsertDtmf(const std::string& track_id,
|
| - int code, int duration) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (!voice_channel_) {
|
| - LOG(LS_ERROR) << "InsertDtmf: No audio channel exists.";
|
| - return false;
|
| - }
|
| - uint32_t send_ssrc = 0;
|
| - if (!VERIFY(local_desc_ && GetAudioSsrcByTrackId(local_desc_->description(),
|
| - track_id, &send_ssrc))) {
|
| - LOG(LS_ERROR) << "InsertDtmf: Track does not exist: " << track_id;
|
| - return false;
|
| - }
|
| - if (!voice_channel_->InsertDtmf(send_ssrc, code, duration)) {
|
| - LOG(LS_ERROR) << "Failed to insert DTMF to channel.";
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -sigslot::signal0<>* WebRtcSession::GetOnDestroyedSignal() {
|
| - return &SignalDestroyed;
|
| -}
|
| -
|
| -bool WebRtcSession::SendData(const cricket::SendDataParams& params,
|
| - const rtc::Buffer& payload,
|
| - cricket::SendDataResult* result) {
|
| - if (!data_channel_) {
|
| - LOG(LS_ERROR) << "SendData called when data_channel_ is NULL.";
|
| - return false;
|
| - }
|
| - return data_channel_->SendData(params, payload, result);
|
| -}
|
| -
|
| -bool WebRtcSession::ConnectDataChannel(DataChannel* webrtc_data_channel) {
|
| - if (!data_channel_) {
|
| - LOG(LS_ERROR) << "ConnectDataChannel called when data_channel_ is NULL.";
|
| - return false;
|
| - }
|
| - data_channel_->SignalReadyToSendData.connect(webrtc_data_channel,
|
| - &DataChannel::OnChannelReady);
|
| - data_channel_->SignalDataReceived.connect(webrtc_data_channel,
|
| - &DataChannel::OnDataReceived);
|
| - data_channel_->SignalStreamClosedRemotely.connect(
|
| - webrtc_data_channel, &DataChannel::OnStreamClosedRemotely);
|
| - return true;
|
| -}
|
| -
|
| -void WebRtcSession::DisconnectDataChannel(DataChannel* webrtc_data_channel) {
|
| - if (!data_channel_) {
|
| - LOG(LS_ERROR) << "DisconnectDataChannel called when data_channel_ is NULL.";
|
| - return;
|
| - }
|
| - data_channel_->SignalReadyToSendData.disconnect(webrtc_data_channel);
|
| - data_channel_->SignalDataReceived.disconnect(webrtc_data_channel);
|
| - data_channel_->SignalStreamClosedRemotely.disconnect(webrtc_data_channel);
|
| -}
|
| -
|
| -void WebRtcSession::AddSctpDataStream(int sid) {
|
| - if (!data_channel_) {
|
| - LOG(LS_ERROR) << "AddDataChannelStreams called when data_channel_ is NULL.";
|
| - return;
|
| - }
|
| - data_channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(sid));
|
| - data_channel_->AddSendStream(cricket::StreamParams::CreateLegacy(sid));
|
| -}
|
| -
|
| -void WebRtcSession::RemoveSctpDataStream(int sid) {
|
| - if (!data_channel_) {
|
| - LOG(LS_ERROR) << "RemoveDataChannelStreams called when data_channel_ is "
|
| - << "NULL.";
|
| - return;
|
| - }
|
| - data_channel_->RemoveRecvStream(sid);
|
| - data_channel_->RemoveSendStream(sid);
|
| -}
|
| -
|
| -bool WebRtcSession::ReadyToSendData() const {
|
| - return data_channel_ && data_channel_->ready_to_send_data();
|
| -}
|
| -
|
| -cricket::DataChannelType WebRtcSession::data_channel_type() const {
|
| - return data_channel_type_;
|
| -}
|
| -
|
| -bool WebRtcSession::IceRestartPending() const {
|
| - return ice_restart_latch_->Get();
|
| -}
|
| -
|
| -void WebRtcSession::ResetIceRestartLatch() {
|
| - ice_restart_latch_->Reset();
|
| -}
|
| -
|
| -void WebRtcSession::OnCertificateReady(
|
| - const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) {
|
| - transport_controller_->SetLocalCertificate(certificate);
|
| -}
|
| -
|
| -bool WebRtcSession::waiting_for_certificate_for_testing() const {
|
| - return webrtc_session_desc_factory_->waiting_for_certificate_for_testing();
|
| -}
|
| -
|
| -const rtc::scoped_refptr<rtc::RTCCertificate>&
|
| -WebRtcSession::certificate_for_testing() {
|
| - return transport_controller_->certificate_for_testing();
|
| -}
|
| -
|
| -void WebRtcSession::SetIceConnectionState(
|
| - PeerConnectionInterface::IceConnectionState state) {
|
| - if (ice_connection_state_ == state) {
|
| - return;
|
| - }
|
| -
|
| - // ASSERT that the requested transition is allowed. Note that
|
| - // WebRtcSession does not implement "kIceConnectionClosed" (that is handled
|
| - // within PeerConnection). This switch statement should compile away when
|
| - // ASSERTs are disabled.
|
| - LOG(LS_INFO) << "Changing IceConnectionState " << ice_connection_state_
|
| - << " => " << state;
|
| - switch (ice_connection_state_) {
|
| - case PeerConnectionInterface::kIceConnectionNew:
|
| - ASSERT(state == PeerConnectionInterface::kIceConnectionChecking);
|
| - break;
|
| - case PeerConnectionInterface::kIceConnectionChecking:
|
| - ASSERT(state == PeerConnectionInterface::kIceConnectionFailed ||
|
| - state == PeerConnectionInterface::kIceConnectionConnected);
|
| - break;
|
| - case PeerConnectionInterface::kIceConnectionConnected:
|
| - ASSERT(state == PeerConnectionInterface::kIceConnectionDisconnected ||
|
| - state == PeerConnectionInterface::kIceConnectionChecking ||
|
| - state == PeerConnectionInterface::kIceConnectionCompleted);
|
| - break;
|
| - case PeerConnectionInterface::kIceConnectionCompleted:
|
| - ASSERT(state == PeerConnectionInterface::kIceConnectionConnected ||
|
| - state == PeerConnectionInterface::kIceConnectionDisconnected);
|
| - break;
|
| - case PeerConnectionInterface::kIceConnectionFailed:
|
| - ASSERT(state == PeerConnectionInterface::kIceConnectionNew);
|
| - break;
|
| - case PeerConnectionInterface::kIceConnectionDisconnected:
|
| - ASSERT(state == PeerConnectionInterface::kIceConnectionChecking ||
|
| - state == PeerConnectionInterface::kIceConnectionConnected ||
|
| - state == PeerConnectionInterface::kIceConnectionCompleted ||
|
| - state == PeerConnectionInterface::kIceConnectionFailed);
|
| - break;
|
| - case PeerConnectionInterface::kIceConnectionClosed:
|
| - ASSERT(false);
|
| - break;
|
| - default:
|
| - ASSERT(false);
|
| - break;
|
| - }
|
| -
|
| - ice_connection_state_ = state;
|
| - if (ice_observer_) {
|
| - ice_observer_->OnIceConnectionChange(ice_connection_state_);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::OnTransportControllerConnectionState(
|
| - cricket::IceConnectionState state) {
|
| - switch (state) {
|
| - case cricket::kIceConnectionConnecting:
|
| - // If the current state is Connected or Completed, then there were
|
| - // writable channels but now there are not, so the next state must
|
| - // be Disconnected.
|
| - // kIceConnectionConnecting is currently used as the default,
|
| - // un-connected state by the TransportController, so its only use is
|
| - // detecting disconnections.
|
| - if (ice_connection_state_ ==
|
| - PeerConnectionInterface::kIceConnectionConnected ||
|
| - ice_connection_state_ ==
|
| - PeerConnectionInterface::kIceConnectionCompleted) {
|
| - SetIceConnectionState(
|
| - PeerConnectionInterface::kIceConnectionDisconnected);
|
| - }
|
| - break;
|
| - case cricket::kIceConnectionFailed:
|
| - SetIceConnectionState(PeerConnectionInterface::kIceConnectionFailed);
|
| - break;
|
| - case cricket::kIceConnectionConnected:
|
| - LOG(LS_INFO) << "Changing to ICE connected state because "
|
| - << "all transports are writable.";
|
| - SetIceConnectionState(PeerConnectionInterface::kIceConnectionConnected);
|
| - break;
|
| - case cricket::kIceConnectionCompleted:
|
| - LOG(LS_INFO) << "Changing to ICE completed state because "
|
| - << "all transports are complete.";
|
| - if (ice_connection_state_ !=
|
| - PeerConnectionInterface::kIceConnectionConnected) {
|
| - // If jumping directly from "checking" to "connected",
|
| - // signal "connected" first.
|
| - SetIceConnectionState(PeerConnectionInterface::kIceConnectionConnected);
|
| - }
|
| - SetIceConnectionState(PeerConnectionInterface::kIceConnectionCompleted);
|
| - if (metrics_observer_) {
|
| - ReportTransportStats();
|
| - }
|
| - break;
|
| - default:
|
| - ASSERT(false);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::OnTransportControllerReceiving(bool receiving) {
|
| - SetIceConnectionReceiving(receiving);
|
| -}
|
| -
|
| -void WebRtcSession::SetIceConnectionReceiving(bool receiving) {
|
| - if (ice_connection_receiving_ == receiving) {
|
| - return;
|
| - }
|
| - ice_connection_receiving_ = receiving;
|
| - if (ice_observer_) {
|
| - ice_observer_->OnIceConnectionReceivingChange(receiving);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::OnTransportControllerCandidatesGathered(
|
| - const std::string& transport_name,
|
| - const cricket::Candidates& candidates) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - int sdp_mline_index;
|
| - if (!GetLocalCandidateMediaIndex(transport_name, &sdp_mline_index)) {
|
| - LOG(LS_ERROR) << "OnTransportControllerCandidatesGathered: content name "
|
| - << transport_name << " not found";
|
| - return;
|
| - }
|
| -
|
| - for (cricket::Candidates::const_iterator citer = candidates.begin();
|
| - citer != candidates.end(); ++citer) {
|
| - // Use transport_name as the candidate media id.
|
| - JsepIceCandidate candidate(transport_name, sdp_mline_index, *citer);
|
| - if (ice_observer_) {
|
| - ice_observer_->OnIceCandidate(&candidate);
|
| - }
|
| - if (local_desc_) {
|
| - local_desc_->AddCandidate(&candidate);
|
| - }
|
| - }
|
| -}
|
| -
|
| -// Enabling voice and video channel.
|
| -void WebRtcSession::EnableChannels() {
|
| - if (voice_channel_ && !voice_channel_->enabled())
|
| - voice_channel_->Enable(true);
|
| -
|
| - if (video_channel_ && !video_channel_->enabled())
|
| - video_channel_->Enable(true);
|
| -
|
| - if (data_channel_ && !data_channel_->enabled())
|
| - data_channel_->Enable(true);
|
| -}
|
| -
|
| -// Returns the media index for a local ice candidate given the content name.
|
| -bool WebRtcSession::GetLocalCandidateMediaIndex(const std::string& content_name,
|
| - int* sdp_mline_index) {
|
| - if (!local_desc_ || !sdp_mline_index) {
|
| - return false;
|
| - }
|
| -
|
| - bool content_found = false;
|
| - const ContentInfos& contents = local_desc_->description()->contents();
|
| - for (size_t index = 0; index < contents.size(); ++index) {
|
| - if (contents[index].name == content_name) {
|
| - *sdp_mline_index = static_cast<int>(index);
|
| - content_found = true;
|
| - break;
|
| - }
|
| - }
|
| - return content_found;
|
| -}
|
| -
|
| -bool WebRtcSession::UseCandidatesInSessionDescription(
|
| - const SessionDescriptionInterface* remote_desc) {
|
| - if (!remote_desc) {
|
| - return true;
|
| - }
|
| - bool ret = true;
|
| -
|
| - for (size_t m = 0; m < remote_desc->number_of_mediasections(); ++m) {
|
| - const IceCandidateCollection* candidates = remote_desc->candidates(m);
|
| - for (size_t n = 0; n < candidates->count(); ++n) {
|
| - const IceCandidateInterface* candidate = candidates->at(n);
|
| - bool valid = false;
|
| - if (!ReadyToUseRemoteCandidate(candidate, remote_desc, &valid)) {
|
| - if (valid) {
|
| - LOG(LS_INFO) << "UseCandidatesInSessionDescription: Not ready to use "
|
| - << "candidate.";
|
| - }
|
| - continue;
|
| - }
|
| - ret = UseCandidate(candidate);
|
| - if (!ret) {
|
| - break;
|
| - }
|
| - }
|
| - }
|
| - return ret;
|
| -}
|
| -
|
| -bool WebRtcSession::UseCandidate(
|
| - const IceCandidateInterface* candidate) {
|
| -
|
| - size_t mediacontent_index = static_cast<size_t>(candidate->sdp_mline_index());
|
| - size_t remote_content_size = remote_desc_->description()->contents().size();
|
| - if (mediacontent_index >= remote_content_size) {
|
| - LOG(LS_ERROR)
|
| - << "UseRemoteCandidateInSession: Invalid candidate media index.";
|
| - return false;
|
| - }
|
| -
|
| - cricket::ContentInfo content =
|
| - remote_desc_->description()->contents()[mediacontent_index];
|
| - std::vector<cricket::Candidate> candidates;
|
| - candidates.push_back(candidate->candidate());
|
| - // Invoking BaseSession method to handle remote candidates.
|
| - std::string error;
|
| - if (transport_controller_->AddRemoteCandidates(content.name, candidates,
|
| - &error)) {
|
| - // Candidates successfully submitted for checking.
|
| - if (ice_connection_state_ == PeerConnectionInterface::kIceConnectionNew ||
|
| - ice_connection_state_ ==
|
| - PeerConnectionInterface::kIceConnectionDisconnected) {
|
| - // If state is New, then the session has just gotten its first remote ICE
|
| - // candidates, so go to Checking.
|
| - // If state is Disconnected, the session is re-using old candidates or
|
| - // receiving additional ones, so go to Checking.
|
| - // If state is Connected, stay Connected.
|
| - // TODO(bemasc): If state is Connected, and the new candidates are for a
|
| - // newly added transport, then the state actually _should_ move to
|
| - // checking. Add a way to distinguish that case.
|
| - SetIceConnectionState(PeerConnectionInterface::kIceConnectionChecking);
|
| - }
|
| - // TODO(bemasc): If state is Completed, go back to Connected.
|
| - } else {
|
| - if (!error.empty()) {
|
| - LOG(LS_WARNING) << error;
|
| - }
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -void WebRtcSession::RemoveUnusedChannels(const SessionDescription* desc) {
|
| - // Destroy video_channel_ first since it may have a pointer to the
|
| - // voice_channel_.
|
| - const cricket::ContentInfo* video_info =
|
| - cricket::GetFirstVideoContent(desc);
|
| - if ((!video_info || video_info->rejected) && video_channel_) {
|
| - SignalVideoChannelDestroyed();
|
| - channel_manager_->DestroyVideoChannel(video_channel_.release());
|
| - }
|
| -
|
| - const cricket::ContentInfo* voice_info =
|
| - cricket::GetFirstAudioContent(desc);
|
| - if ((!voice_info || voice_info->rejected) && voice_channel_) {
|
| - SignalVoiceChannelDestroyed();
|
| - channel_manager_->DestroyVoiceChannel(voice_channel_.release());
|
| - }
|
| -
|
| - const cricket::ContentInfo* data_info =
|
| - cricket::GetFirstDataContent(desc);
|
| - if ((!data_info || data_info->rejected) && data_channel_) {
|
| - SignalDataChannelDestroyed();
|
| - channel_manager_->DestroyDataChannel(data_channel_.release());
|
| - }
|
| -}
|
| -
|
| -// TODO(mallinath) - Add a correct error code if the channels are not created
|
| -// due to BUNDLE is enabled but rtcp-mux is disabled.
|
| -bool WebRtcSession::CreateChannels(const SessionDescription* desc) {
|
| - // Creating the media channels and transport proxies.
|
| - const cricket::ContentInfo* voice = cricket::GetFirstAudioContent(desc);
|
| - if (voice && !voice->rejected && !voice_channel_) {
|
| - if (!CreateVoiceChannel(voice)) {
|
| - LOG(LS_ERROR) << "Failed to create voice channel.";
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - const cricket::ContentInfo* video = cricket::GetFirstVideoContent(desc);
|
| - if (video && !video->rejected && !video_channel_) {
|
| - if (!CreateVideoChannel(video)) {
|
| - LOG(LS_ERROR) << "Failed to create video channel.";
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - const cricket::ContentInfo* data = cricket::GetFirstDataContent(desc);
|
| - if (data_channel_type_ != cricket::DCT_NONE &&
|
| - data && !data->rejected && !data_channel_) {
|
| - if (!CreateDataChannel(data)) {
|
| - LOG(LS_ERROR) << "Failed to create data channel.";
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - if (rtcp_mux_policy_ == PeerConnectionInterface::kRtcpMuxPolicyRequire) {
|
| - if (voice_channel()) {
|
| - voice_channel()->ActivateRtcpMux();
|
| - }
|
| - if (video_channel()) {
|
| - video_channel()->ActivateRtcpMux();
|
| - }
|
| - if (data_channel()) {
|
| - data_channel()->ActivateRtcpMux();
|
| - }
|
| - }
|
| -
|
| - // Enable BUNDLE immediately when kBundlePolicyMaxBundle is in effect.
|
| - if (bundle_policy_ == PeerConnectionInterface::kBundlePolicyMaxBundle) {
|
| - const cricket::ContentGroup* bundle_group = desc->GetGroupByName(
|
| - cricket::GROUP_TYPE_BUNDLE);
|
| - if (!bundle_group) {
|
| - LOG(LS_WARNING) << "max-bundle specified without BUNDLE specified";
|
| - return false;
|
| - }
|
| - if (!EnableBundle(*bundle_group)) {
|
| - LOG(LS_WARNING) << "max-bundle failed to enable bundling.";
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::CreateVoiceChannel(const cricket::ContentInfo* content) {
|
| - voice_channel_.reset(channel_manager_->CreateVoiceChannel(
|
| - media_controller_, transport_controller_.get(), content->name, true,
|
| - audio_options_));
|
| - if (!voice_channel_) {
|
| - return false;
|
| - }
|
| -
|
| - voice_channel_->SignalDtlsSetupFailure.connect(
|
| - this, &WebRtcSession::OnDtlsSetupFailure);
|
| -
|
| - SignalVoiceChannelCreated();
|
| - voice_channel_->transport_channel()->SignalSentPacket.connect(
|
| - this, &WebRtcSession::OnSentPacket_w);
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::CreateVideoChannel(const cricket::ContentInfo* content) {
|
| - video_channel_.reset(channel_manager_->CreateVideoChannel(
|
| - media_controller_, transport_controller_.get(), content->name, true,
|
| - video_options_));
|
| - if (!video_channel_) {
|
| - return false;
|
| - }
|
| -
|
| - video_channel_->SignalDtlsSetupFailure.connect(
|
| - this, &WebRtcSession::OnDtlsSetupFailure);
|
| -
|
| - SignalVideoChannelCreated();
|
| - video_channel_->transport_channel()->SignalSentPacket.connect(
|
| - this, &WebRtcSession::OnSentPacket_w);
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::CreateDataChannel(const cricket::ContentInfo* content) {
|
| - bool sctp = (data_channel_type_ == cricket::DCT_SCTP);
|
| - data_channel_.reset(channel_manager_->CreateDataChannel(
|
| - transport_controller_.get(), content->name, !sctp, data_channel_type_));
|
| - if (!data_channel_) {
|
| - return false;
|
| - }
|
| -
|
| - if (sctp) {
|
| - data_channel_->SignalDataReceived.connect(
|
| - this, &WebRtcSession::OnDataChannelMessageReceived);
|
| - }
|
| -
|
| - data_channel_->SignalDtlsSetupFailure.connect(
|
| - this, &WebRtcSession::OnDtlsSetupFailure);
|
| -
|
| - SignalDataChannelCreated();
|
| - data_channel_->transport_channel()->SignalSentPacket.connect(
|
| - this, &WebRtcSession::OnSentPacket_w);
|
| - return true;
|
| -}
|
| -
|
| -void WebRtcSession::OnDtlsSetupFailure(cricket::BaseChannel*, bool rtcp) {
|
| - SetError(ERROR_TRANSPORT,
|
| - rtcp ? kDtlsSetupFailureRtcp : kDtlsSetupFailureRtp);
|
| -}
|
| -
|
| -void WebRtcSession::OnDataChannelMessageReceived(
|
| - cricket::DataChannel* channel,
|
| - const cricket::ReceiveDataParams& params,
|
| - const rtc::Buffer& payload) {
|
| - RTC_DCHECK(data_channel_type_ == cricket::DCT_SCTP);
|
| - if (params.type == cricket::DMT_CONTROL && IsOpenMessage(payload)) {
|
| - // Received OPEN message; parse and signal that a new data channel should
|
| - // be created.
|
| - std::string label;
|
| - InternalDataChannelInit config;
|
| - config.id = params.ssrc;
|
| - if (!ParseDataChannelOpenMessage(payload, &label, &config)) {
|
| - LOG(LS_WARNING) << "Failed to parse the OPEN message for sid "
|
| - << params.ssrc;
|
| - return;
|
| - }
|
| - config.open_handshake_role = InternalDataChannelInit::kAcker;
|
| - SignalDataChannelOpenMessage(label, config);
|
| - }
|
| - // Otherwise ignore the message.
|
| -}
|
| -
|
| -// Returns false if bundle is enabled and rtcp_mux is disabled.
|
| -bool WebRtcSession::ValidateBundleSettings(const SessionDescription* desc) {
|
| - bool bundle_enabled = desc->HasGroup(cricket::GROUP_TYPE_BUNDLE);
|
| - if (!bundle_enabled)
|
| - return true;
|
| -
|
| - const cricket::ContentGroup* bundle_group =
|
| - desc->GetGroupByName(cricket::GROUP_TYPE_BUNDLE);
|
| - ASSERT(bundle_group != NULL);
|
| -
|
| - const cricket::ContentInfos& contents = desc->contents();
|
| - for (cricket::ContentInfos::const_iterator citer = contents.begin();
|
| - citer != contents.end(); ++citer) {
|
| - const cricket::ContentInfo* content = (&*citer);
|
| - ASSERT(content != NULL);
|
| - if (bundle_group->HasContentName(content->name) &&
|
| - !content->rejected && content->type == cricket::NS_JINGLE_RTP) {
|
| - if (!HasRtcpMuxEnabled(content))
|
| - return false;
|
| - }
|
| - }
|
| - // RTCP-MUX is enabled in all the contents.
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::HasRtcpMuxEnabled(
|
| - const cricket::ContentInfo* content) {
|
| - const cricket::MediaContentDescription* description =
|
| - static_cast<cricket::MediaContentDescription*>(content->description);
|
| - return description->rtcp_mux();
|
| -}
|
| -
|
| -bool WebRtcSession::ValidateSessionDescription(
|
| - const SessionDescriptionInterface* sdesc,
|
| - cricket::ContentSource source, std::string* err_desc) {
|
| - std::string type;
|
| - if (error() != ERROR_NONE) {
|
| - return BadSdp(source, type, GetSessionErrorMsg(), err_desc);
|
| - }
|
| -
|
| - if (!sdesc || !sdesc->description()) {
|
| - return BadSdp(source, type, kInvalidSdp, err_desc);
|
| - }
|
| -
|
| - type = sdesc->type();
|
| - Action action = GetAction(sdesc->type());
|
| - if (source == cricket::CS_LOCAL) {
|
| - if (!ExpectSetLocalDescription(action))
|
| - return BadLocalSdp(type, BadStateErrMsg(state()), err_desc);
|
| - } else {
|
| - if (!ExpectSetRemoteDescription(action))
|
| - return BadRemoteSdp(type, BadStateErrMsg(state()), err_desc);
|
| - }
|
| -
|
| - // Verify crypto settings.
|
| - std::string crypto_error;
|
| - if ((webrtc_session_desc_factory_->SdesPolicy() == cricket::SEC_REQUIRED ||
|
| - dtls_enabled_) &&
|
| - !VerifyCrypto(sdesc->description(), dtls_enabled_, &crypto_error)) {
|
| - return BadSdp(source, type, crypto_error, err_desc);
|
| - }
|
| -
|
| - // Verify ice-ufrag and ice-pwd.
|
| - if (!VerifyIceUfragPwdPresent(sdesc->description())) {
|
| - return BadSdp(source, type, kSdpWithoutIceUfragPwd, err_desc);
|
| - }
|
| -
|
| - if (!ValidateBundleSettings(sdesc->description())) {
|
| - return BadSdp(source, type, kBundleWithoutRtcpMux, err_desc);
|
| - }
|
| -
|
| - // Verify m-lines in Answer when compared against Offer.
|
| - if (action == kAnswer) {
|
| - const cricket::SessionDescription* offer_desc =
|
| - (source == cricket::CS_LOCAL) ? remote_desc_->description()
|
| - : local_desc_->description();
|
| - if (!VerifyMediaDescriptions(sdesc->description(), offer_desc)) {
|
| - return BadAnswerSdp(source, kMlineMismatch, err_desc);
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebRtcSession::ExpectSetLocalDescription(Action action) {
|
| - return ((action == kOffer && state() == STATE_INIT) ||
|
| - // update local offer
|
| - (action == kOffer && state() == STATE_SENTOFFER) ||
|
| - // update the current ongoing session.
|
| - (action == kOffer && state() == STATE_INPROGRESS) ||
|
| - // accept remote offer
|
| - (action == kAnswer && state() == STATE_RECEIVEDOFFER) ||
|
| - (action == kAnswer && state() == STATE_SENTPRANSWER) ||
|
| - (action == kPrAnswer && state() == STATE_RECEIVEDOFFER) ||
|
| - (action == kPrAnswer && state() == STATE_SENTPRANSWER));
|
| -}
|
| -
|
| -bool WebRtcSession::ExpectSetRemoteDescription(Action action) {
|
| - return ((action == kOffer && state() == STATE_INIT) ||
|
| - // update remote offer
|
| - (action == kOffer && state() == STATE_RECEIVEDOFFER) ||
|
| - // update the current ongoing session
|
| - (action == kOffer && state() == STATE_INPROGRESS) ||
|
| - // accept local offer
|
| - (action == kAnswer && state() == STATE_SENTOFFER) ||
|
| - (action == kAnswer && state() == STATE_RECEIVEDPRANSWER) ||
|
| - (action == kPrAnswer && state() == STATE_SENTOFFER) ||
|
| - (action == kPrAnswer && state() == STATE_RECEIVEDPRANSWER));
|
| -}
|
| -
|
| -std::string WebRtcSession::GetSessionErrorMsg() {
|
| - std::ostringstream desc;
|
| - desc << kSessionError << GetErrorCodeString(error()) << ". ";
|
| - desc << kSessionErrorDesc << error_desc() << ".";
|
| - return desc.str();
|
| -}
|
| -
|
| -// We need to check the local/remote description for the Transport instead of
|
| -// the session, because a new Transport added during renegotiation may have
|
| -// them unset while the session has them set from the previous negotiation.
|
| -// Not doing so may trigger the auto generation of transport description and
|
| -// mess up DTLS identity information, ICE credential, etc.
|
| -bool WebRtcSession::ReadyToUseRemoteCandidate(
|
| - const IceCandidateInterface* candidate,
|
| - const SessionDescriptionInterface* remote_desc,
|
| - bool* valid) {
|
| - *valid = true;;
|
| -
|
| - const SessionDescriptionInterface* current_remote_desc =
|
| - remote_desc ? remote_desc : remote_desc_.get();
|
| -
|
| - if (!current_remote_desc) {
|
| - return false;
|
| - }
|
| -
|
| - size_t mediacontent_index =
|
| - static_cast<size_t>(candidate->sdp_mline_index());
|
| - size_t remote_content_size =
|
| - current_remote_desc->description()->contents().size();
|
| - if (mediacontent_index >= remote_content_size) {
|
| - LOG(LS_ERROR)
|
| - << "ReadyToUseRemoteCandidate: Invalid candidate media index.";
|
| -
|
| - *valid = false;
|
| - return false;
|
| - }
|
| -
|
| - cricket::ContentInfo content =
|
| - current_remote_desc->description()->contents()[mediacontent_index];
|
| - cricket::BaseChannel* channel = GetChannel(content.name);
|
| - if (!channel) {
|
| - return false;
|
| - }
|
| -
|
| - return transport_controller_->ReadyForRemoteCandidates(
|
| - channel->transport_name());
|
| -}
|
| -
|
| -void WebRtcSession::OnTransportControllerGatheringState(
|
| - cricket::IceGatheringState state) {
|
| - ASSERT(signaling_thread()->IsCurrent());
|
| - if (state == cricket::kIceGatheringGathering) {
|
| - if (ice_observer_) {
|
| - ice_observer_->OnIceGatheringChange(
|
| - PeerConnectionInterface::kIceGatheringGathering);
|
| - }
|
| - } else if (state == cricket::kIceGatheringComplete) {
|
| - if (ice_observer_) {
|
| - ice_observer_->OnIceGatheringChange(
|
| - PeerConnectionInterface::kIceGatheringComplete);
|
| - }
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::ReportTransportStats() {
|
| - // Use a set so we don't report the same stats twice if two channels share
|
| - // a transport.
|
| - std::set<std::string> transport_names;
|
| - if (voice_channel()) {
|
| - transport_names.insert(voice_channel()->transport_name());
|
| - }
|
| - if (video_channel()) {
|
| - transport_names.insert(video_channel()->transport_name());
|
| - }
|
| - if (data_channel()) {
|
| - transport_names.insert(data_channel()->transport_name());
|
| - }
|
| - for (const auto& name : transport_names) {
|
| - cricket::TransportStats stats;
|
| - if (transport_controller_->GetStats(name, &stats)) {
|
| - ReportBestConnectionState(stats);
|
| - ReportNegotiatedCiphers(stats);
|
| - }
|
| - }
|
| -}
|
| -// Walk through the ConnectionInfos to gather best connection usage
|
| -// for IPv4 and IPv6.
|
| -void WebRtcSession::ReportBestConnectionState(
|
| - const cricket::TransportStats& stats) {
|
| - RTC_DCHECK(metrics_observer_ != NULL);
|
| - for (cricket::TransportChannelStatsList::const_iterator it =
|
| - stats.channel_stats.begin();
|
| - it != stats.channel_stats.end(); ++it) {
|
| - for (cricket::ConnectionInfos::const_iterator it_info =
|
| - it->connection_infos.begin();
|
| - it_info != it->connection_infos.end(); ++it_info) {
|
| - if (!it_info->best_connection) {
|
| - continue;
|
| - }
|
| -
|
| - PeerConnectionEnumCounterType type = kPeerConnectionEnumCounterMax;
|
| - const cricket::Candidate& local = it_info->local_candidate;
|
| - const cricket::Candidate& remote = it_info->remote_candidate;
|
| -
|
| - // Increment the counter for IceCandidatePairType.
|
| - if (local.protocol() == cricket::TCP_PROTOCOL_NAME ||
|
| - (local.type() == RELAY_PORT_TYPE &&
|
| - local.relay_protocol() == cricket::TCP_PROTOCOL_NAME)) {
|
| - type = kEnumCounterIceCandidatePairTypeTcp;
|
| - } else if (local.protocol() == cricket::UDP_PROTOCOL_NAME) {
|
| - type = kEnumCounterIceCandidatePairTypeUdp;
|
| - } else {
|
| - RTC_CHECK(0);
|
| - }
|
| - metrics_observer_->IncrementEnumCounter(
|
| - type, GetIceCandidatePairCounter(local, remote),
|
| - kIceCandidatePairMax);
|
| -
|
| - // Increment the counter for IP type.
|
| - if (local.address().family() == AF_INET) {
|
| - metrics_observer_->IncrementEnumCounter(
|
| - kEnumCounterAddressFamily, kBestConnections_IPv4,
|
| - kPeerConnectionAddressFamilyCounter_Max);
|
| -
|
| - } else if (local.address().family() == AF_INET6) {
|
| - metrics_observer_->IncrementEnumCounter(
|
| - kEnumCounterAddressFamily, kBestConnections_IPv6,
|
| - kPeerConnectionAddressFamilyCounter_Max);
|
| - } else {
|
| - RTC_CHECK(0);
|
| - }
|
| -
|
| - return;
|
| - }
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::ReportNegotiatedCiphers(
|
| - const cricket::TransportStats& stats) {
|
| - RTC_DCHECK(metrics_observer_ != NULL);
|
| - if (!dtls_enabled_ || stats.channel_stats.empty()) {
|
| - return;
|
| - }
|
| -
|
| - int srtp_crypto_suite = stats.channel_stats[0].srtp_crypto_suite;
|
| - int ssl_cipher_suite = stats.channel_stats[0].ssl_cipher_suite;
|
| - if (srtp_crypto_suite == rtc::SRTP_INVALID_CRYPTO_SUITE &&
|
| - ssl_cipher_suite == rtc::TLS_NULL_WITH_NULL_NULL) {
|
| - return;
|
| - }
|
| -
|
| - PeerConnectionEnumCounterType srtp_counter_type;
|
| - PeerConnectionEnumCounterType ssl_counter_type;
|
| - if (stats.transport_name == cricket::CN_AUDIO) {
|
| - srtp_counter_type = kEnumCounterAudioSrtpCipher;
|
| - ssl_counter_type = kEnumCounterAudioSslCipher;
|
| - } else if (stats.transport_name == cricket::CN_VIDEO) {
|
| - srtp_counter_type = kEnumCounterVideoSrtpCipher;
|
| - ssl_counter_type = kEnumCounterVideoSslCipher;
|
| - } else if (stats.transport_name == cricket::CN_DATA) {
|
| - srtp_counter_type = kEnumCounterDataSrtpCipher;
|
| - ssl_counter_type = kEnumCounterDataSslCipher;
|
| - } else {
|
| - RTC_NOTREACHED();
|
| - return;
|
| - }
|
| -
|
| - if (srtp_crypto_suite != rtc::SRTP_INVALID_CRYPTO_SUITE) {
|
| - metrics_observer_->IncrementSparseEnumCounter(srtp_counter_type,
|
| - srtp_crypto_suite);
|
| - }
|
| - if (ssl_cipher_suite != rtc::TLS_NULL_WITH_NULL_NULL) {
|
| - metrics_observer_->IncrementSparseEnumCounter(ssl_counter_type,
|
| - ssl_cipher_suite);
|
| - }
|
| -}
|
| -
|
| -void WebRtcSession::OnSentPacket_w(cricket::TransportChannel* channel,
|
| - const rtc::SentPacket& sent_packet) {
|
| - RTC_DCHECK(worker_thread()->IsCurrent());
|
| - media_controller_->call_w()->OnSentPacket(sent_packet);
|
| -}
|
| -
|
| -} // namespace webrtc
|
|
|
Chromium Code Reviews
Issue 1610243002:
Move talk/app/webrtc to webrtc/api (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master