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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libwebrtc/pc/dtls_srtp_transport.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/pc/dtls_srtp_transport.h')
-rw-r--r-- | third_party/libwebrtc/pc/dtls_srtp_transport.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/third_party/libwebrtc/pc/dtls_srtp_transport.h b/third_party/libwebrtc/pc/dtls_srtp_transport.h new file mode 100644 index 0000000000..7958210c99 --- /dev/null +++ b/third_party/libwebrtc/pc/dtls_srtp_transport.h @@ -0,0 +1,106 @@ +/* + * Copyright 2017 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 PC_DTLS_SRTP_TRANSPORT_H_ +#define PC_DTLS_SRTP_TRANSPORT_H_ + +#include <functional> +#include <string> +#include <vector> + +#include "absl/types/optional.h" +#include "api/crypto_params.h" +#include "api/dtls_transport_interface.h" +#include "api/rtc_error.h" +#include "p2p/base/dtls_transport_internal.h" +#include "p2p/base/packet_transport_internal.h" +#include "pc/srtp_transport.h" +#include "rtc_base/buffer.h" +#include "rtc_base/third_party/sigslot/sigslot.h" + +namespace webrtc { + +// The subclass of SrtpTransport is used for DTLS-SRTP. When the DTLS handshake +// is finished, it extracts the keying materials from DtlsTransport and +// configures the SrtpSessions in the base class. +class DtlsSrtpTransport : public SrtpTransport { + public: + DtlsSrtpTransport(bool rtcp_mux_enabled, const FieldTrialsView& field_trials); + + // Set P2P layer RTP/RTCP DtlsTransports. When using RTCP-muxing, + // `rtcp_dtls_transport` is null. + void SetDtlsTransports(cricket::DtlsTransportInternal* rtp_dtls_transport, + cricket::DtlsTransportInternal* rtcp_dtls_transport); + + void SetRtcpMuxEnabled(bool enable) override; + + // Set the header extension ids that should be encrypted. + void UpdateSendEncryptedHeaderExtensionIds( + const std::vector<int>& send_extension_ids); + + void UpdateRecvEncryptedHeaderExtensionIds( + const std::vector<int>& recv_extension_ids); + + void SetOnDtlsStateChange(std::function<void(void)> callback); + + RTCError SetSrtpSendKey(const cricket::CryptoParams& params) override { + return RTCError(RTCErrorType::UNSUPPORTED_OPERATION, + "Set SRTP keys for DTLS-SRTP is not supported."); + } + RTCError SetSrtpReceiveKey(const cricket::CryptoParams& params) override { + return RTCError(RTCErrorType::UNSUPPORTED_OPERATION, + "Set SRTP keys for DTLS-SRTP is not supported."); + } + + // If `active_reset_srtp_params_` is set to be true, the SRTP parameters will + // be reset whenever the DtlsTransports are reset. + void SetActiveResetSrtpParams(bool active_reset_srtp_params) { + active_reset_srtp_params_ = active_reset_srtp_params; + } + + private: + bool IsDtlsActive(); + bool IsDtlsConnected(); + bool IsDtlsWritable(); + bool DtlsHandshakeCompleted(); + void MaybeSetupDtlsSrtp(); + void SetupRtpDtlsSrtp(); + void SetupRtcpDtlsSrtp(); + bool ExtractParams(cricket::DtlsTransportInternal* dtls_transport, + int* selected_crypto_suite, + rtc::ZeroOnFreeBuffer<unsigned char>* send_key, + rtc::ZeroOnFreeBuffer<unsigned char>* recv_key); + void SetDtlsTransport(cricket::DtlsTransportInternal* new_dtls_transport, + cricket::DtlsTransportInternal** old_dtls_transport); + void SetRtpDtlsTransport(cricket::DtlsTransportInternal* rtp_dtls_transport); + void SetRtcpDtlsTransport( + cricket::DtlsTransportInternal* rtcp_dtls_transport); + + void OnDtlsState(cricket::DtlsTransportInternal* dtls_transport, + DtlsTransportState state); + + // Override the SrtpTransport::OnWritableState. + void OnWritableState(rtc::PacketTransportInternal* packet_transport) override; + + // Owned by the TransportController. + cricket::DtlsTransportInternal* rtp_dtls_transport_ = nullptr; + cricket::DtlsTransportInternal* rtcp_dtls_transport_ = nullptr; + + // The encrypted header extension IDs. + absl::optional<std::vector<int>> send_extension_ids_; + absl::optional<std::vector<int>> recv_extension_ids_; + + bool active_reset_srtp_params_ = false; + std::function<void(void)> on_dtls_state_change_; +}; + +} // namespace webrtc + +#endif // PC_DTLS_SRTP_TRANSPORT_H_ |