113 lines
4.2 KiB
C
113 lines
4.2 KiB
C
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/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_P2P_BASE_TRANSPORTCHANNELIMPL_H_
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#define WEBRTC_P2P_BASE_TRANSPORTCHANNELIMPL_H_
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#include <string>
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/p2p/base/transportchannel.h"
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namespace buzz { class XmlElement; }
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namespace cricket {
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class Candidate;
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// TODO(pthatcher): Remove this once it's no longer used in
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// remoting/protocol/libjingle_transport_factory.cc
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enum IceProtocolType {
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ICEPROTO_RFC5245 // Standard RFC 5245 version of ICE.
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};
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// Base class for real implementations of TransportChannel. This includes some
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// methods called only by Transport, which do not need to be exposed to the
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// client.
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class TransportChannelImpl : public TransportChannel {
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public:
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explicit TransportChannelImpl(const std::string& transport_name,
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int component)
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: TransportChannel(transport_name, component) {}
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// For ICE channels.
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virtual IceRole GetIceRole() const = 0;
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virtual void SetIceRole(IceRole role) = 0;
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virtual void SetIceTiebreaker(uint64_t tiebreaker) = 0;
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// TODO(pthatcher): Remove this once it's no longer called in
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// remoting/protocol/libjingle_transport_factory.cc
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virtual void SetIceProtocolType(IceProtocolType type) {}
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// SetIceCredentials only need to be implemented by the ICE
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// transport channels. Non-ICE transport channels can just ignore.
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// The ufrag and pwd should be set before the Connect() is called.
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virtual void SetIceCredentials(const std::string& ice_ufrag,
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const std::string& ice_pwd) = 0;
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// SetRemoteIceCredentials only need to be implemented by the ICE
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// transport channels. Non-ICE transport channels can just ignore.
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virtual void SetRemoteIceCredentials(const std::string& ice_ufrag,
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const std::string& ice_pwd) = 0;
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// SetRemoteIceMode must be implemented only by the ICE transport channels.
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virtual void SetRemoteIceMode(IceMode mode) = 0;
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virtual void SetIceConfig(const IceConfig& config) = 0;
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// Begins the process of attempting to make a connection to the other client.
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virtual void Connect() = 0;
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// Start gathering candidates if not already started, or if an ICE restart
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// occurred.
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virtual void MaybeStartGathering() = 0;
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sigslot::signal1<TransportChannelImpl*> SignalGatheringState;
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// Handles sending and receiving of candidates. The Transport
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// receives the candidates and may forward them to the relevant
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// channel.
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//
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// Note: Since candidates are delivered asynchronously to the
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// channel, they cannot return an error if the message is invalid.
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// It is assumed that the Transport will have checked validity
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// before forwarding.
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sigslot::signal2<TransportChannelImpl*, const Candidate&>
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SignalCandidateGathered;
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sigslot::signal2<TransportChannelImpl*, const Candidates&>
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SignalCandidatesRemoved;
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virtual void AddRemoteCandidate(const Candidate& candidate) = 0;
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virtual void RemoveRemoteCandidate(const Candidate& candidate) = 0;
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virtual IceGatheringState gathering_state() const = 0;
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// DTLS methods
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virtual bool SetLocalCertificate(
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const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) = 0;
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// Set DTLS Remote fingerprint. Must be after local identity set.
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virtual bool SetRemoteFingerprint(const std::string& digest_alg,
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const uint8_t* digest,
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size_t digest_len) = 0;
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virtual bool SetSslRole(rtc::SSLRole role) = 0;
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// Invoked when there is conflict in the ICE role between local and remote
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// agents.
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sigslot::signal1<TransportChannelImpl*> SignalRoleConflict;
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// Emitted whenever the transport channel state changed.
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sigslot::signal1<TransportChannelImpl*> SignalStateChanged;
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private:
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RTC_DISALLOW_COPY_AND_ASSIGN(TransportChannelImpl);
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};
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} // namespace cricket
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#endif // WEBRTC_P2P_BASE_TRANSPORTCHANNELIMPL_H_
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