130 lines
4.4 KiB
C++
130 lines
4.4 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_DTLS_TRANSPORT_INTERNAL_H_
|
|
#define P2P_BASE_DTLS_TRANSPORT_INTERNAL_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
#include "api/crypto/crypto_options.h"
|
|
#include "api/dtls_transport_interface.h"
|
|
#include "api/scoped_refptr.h"
|
|
#include "p2p/base/ice_transport_internal.h"
|
|
#include "p2p/base/packet_transport_internal.h"
|
|
#include "rtc_base/constructor_magic.h"
|
|
#include "rtc_base/ssl_certificate.h"
|
|
#include "rtc_base/ssl_fingerprint.h"
|
|
#include "rtc_base/ssl_stream_adapter.h"
|
|
#include "rtc_base/third_party/sigslot/sigslot.h"
|
|
|
|
namespace cricket {
|
|
|
|
enum DtlsTransportState {
|
|
// Haven't started negotiating.
|
|
DTLS_TRANSPORT_NEW = 0,
|
|
// Have started negotiating.
|
|
DTLS_TRANSPORT_CONNECTING,
|
|
// Negotiated, and has a secure connection.
|
|
DTLS_TRANSPORT_CONNECTED,
|
|
// Transport is closed.
|
|
DTLS_TRANSPORT_CLOSED,
|
|
// Failed due to some error in the handshake process.
|
|
DTLS_TRANSPORT_FAILED,
|
|
};
|
|
|
|
webrtc::DtlsTransportState ConvertDtlsTransportState(
|
|
cricket::DtlsTransportState cricket_state);
|
|
|
|
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 webrtc::CryptoOptions& crypto_options() const = 0;
|
|
|
|
virtual DtlsTransportState dtls_state() const = 0;
|
|
|
|
virtual int component() const = 0;
|
|
|
|
virtual bool IsDtlsActive() const = 0;
|
|
|
|
virtual bool GetDtlsRole(rtc::SSLRole* role) const = 0;
|
|
|
|
virtual bool SetDtlsRole(rtc::SSLRole role) = 0;
|
|
|
|
// Finds out which TLS/DTLS version is running.
|
|
virtual bool GetSslVersionBytes(int* version) const = 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 chain.
|
|
virtual std::unique_ptr<rtc::SSLCertChain> GetRemoteSSLCertChain() 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;
|
|
|
|
virtual bool SetSslMaxProtocolVersion(rtc::SSLProtocolVersion version) = 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_DTLS_TRANSPORT_INTERNAL_H_
|