webrtc_m130/p2p/base/dtlstransportinternal.h
Zhi Huang 942bc2e4b9 Reland: Replaced the SignalSelectedCandidatePairChanged with a new signal.
|packet_overhead| field is added to rtc::NetworkRoute structure.

In PackTransportInternal:
1. network_route() is added which returns the current network route.
2. debug_name() is removed.
3. transport_name() is moved from DtlsTransportInternal and
IceTransportInternal to PacketTransportInternal.

When the selected candidate pair is changed, the P2PTransportChannel
will fire the SignalNetworkRouteChanged instead of
SignalSelectedCandidatePairChanged to upper layers.

The Rtp/SrtpTransport takes the responsibility of calculating the
transport overhead from the BaseChannel so that the BaseChannel
doesn't need to depend on P2P layer transports.

TBR=pthatcher@webrtc.org

Bug: webrtc:7013
Change-Id: If9928b25a7259544c2d9c42048b53ab24292fc67
Reviewed-on: https://webrtc-review.googlesource.com/22767
Reviewed-by: Zhi Huang <zhihuang@webrtc.org>
Commit-Queue: Zhi Huang <zhihuang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20664}
2017-11-13 22:50:11 +00:00

104 lines
3.6 KiB
C++

/*
* Copyright 2016 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef P2P_BASE_DTLSTRANSPORTINTERNAL_H_
#define P2P_BASE_DTLSTRANSPORTINTERNAL_H_
#include <memory>
#include <string>
#include <vector>
#include "p2p/base/icetransportinternal.h"
#include "p2p/base/jseptransport.h"
#include "p2p/base/packettransportinternal.h"
#include "rtc_base/sslstreamadapter.h"
#include "rtc_base/stringencode.h"
namespace cricket {
enum PacketFlags {
PF_NORMAL = 0x00, // A normal packet.
PF_SRTP_BYPASS = 0x01, // An encrypted SRTP packet; bypass any additional
// crypto provided by the transport (e.g. DTLS)
};
// DtlsTransportInternal is an internal interface that does DTLS, also
// negotiating SRTP crypto suites so that it may be used for DTLS-SRTP.
//
// Once the public interface is supported,
// (https://www.w3.org/TR/webrtc/#rtcdtlstransport-interface)
// the DtlsTransportInterface will be split from this class.
class DtlsTransportInternal : public rtc::PacketTransportInternal {
public:
~DtlsTransportInternal() override;
virtual const rtc::CryptoOptions& crypto_options() const = 0;
virtual DtlsTransportState dtls_state() const = 0;
virtual int component() const = 0;
virtual bool IsDtlsActive() const = 0;
virtual bool GetSslRole(rtc::SSLRole* role) const = 0;
virtual bool SetSslRole(rtc::SSLRole role) = 0;
// Finds out which DTLS-SRTP cipher was negotiated.
// TODO(zhihuang): Remove this once all dependencies implement this.
virtual bool GetSrtpCryptoSuite(int* cipher) = 0;
// Finds out which DTLS cipher was negotiated.
// TODO(zhihuang): Remove this once all dependencies implement this.
virtual bool GetSslCipherSuite(int* cipher) = 0;
// Gets the local RTCCertificate used for DTLS.
virtual rtc::scoped_refptr<rtc::RTCCertificate> GetLocalCertificate()
const = 0;
virtual bool SetLocalCertificate(
const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) = 0;
// Gets a copy of the remote side's SSL certificate.
virtual std::unique_ptr<rtc::SSLCertificate> GetRemoteSSLCertificate()
const = 0;
// Allows key material to be extracted for external encryption.
virtual bool ExportKeyingMaterial(const std::string& label,
const uint8_t* context,
size_t context_len,
bool use_context,
uint8_t* result,
size_t result_len) = 0;
// Set DTLS remote fingerprint. Must be after local identity set.
virtual bool SetRemoteFingerprint(const std::string& digest_alg,
const uint8_t* digest,
size_t digest_len) = 0;
// Expose the underneath IceTransport.
virtual IceTransportInternal* ice_transport() = 0;
sigslot::signal2<DtlsTransportInternal*, DtlsTransportState> SignalDtlsState;
// Emitted whenever the Dtls handshake failed on some transport channel.
sigslot::signal1<rtc::SSLHandshakeError> SignalDtlsHandshakeError;
protected:
DtlsTransportInternal();
private:
RTC_DISALLOW_COPY_AND_ASSIGN(DtlsTransportInternal);
};
} // namespace cricket
#endif // P2P_BASE_DTLSTRANSPORTINTERNAL_H_