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ringrtc: Clean up externally-specified keys code

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Miriam Zimmerman 2024-06-21 17:26:58 -04:00 committed by GitHub
parent 1357e97179
commit b25957f459
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GPG key ID: B5690EEEBB952194
5 changed files with 25 additions and 6 deletions
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10
pc/jsep_transport_controller.cc
View file

@ -1102,6 +1102,16 @@ RTCError JsepTransportController::MaybeCreateJsepTransport(
return RTCError(RTCErrorType::INVALID_PARAMETER,
"Manual keys and DTLS-SRTP cannot be enabled at the same time.");
}
if (content_desc->manually_specify_keys() &&
!content_desc->crypto().has_value()) {
return RTCError(RTCErrorType::INVALID_PARAMETER,
"Manual keys required but not specified.");
}
if (!content_desc->manually_specify_keys() &&
content_desc->crypto().has_value()) {
return RTCError(RTCErrorType::INVALID_PARAMETER,
"Manual keys specified in DTLS-SRTP mode.");
}
rtc::scoped_refptr<IceTransportInterface> ice =
CreateIceTransport(content_info.name, /*rtcp=*/false);

10
pc/media_session.cc
View file

@ -1140,7 +1140,7 @@ bool IsMediaProtocolSupported(MediaType type,
// RingRTC: Allow out-of-band / "manual" key negotiation.
void SetMediaProtocol(bool secure_transport, bool manually_specify_keys,
MediaContentDescription* desc) {
if (desc->crypto().has_value() || manually_specify_keys)
if (manually_specify_keys)
desc->set_protocol(kMediaProtocolSavpf);
else if (secure_transport)
desc->set_protocol(kMediaProtocolDtlsSavpf);
@ -2058,6 +2058,10 @@ RTCError MediaSessionDescriptionFactory::AddRtpContentForOffer(
} else {
content_description = std::make_unique<VideoContentDescription>();
}
// RingRTC: Allow out-of-band / "manual" key negotiation.
if (manually_specify_keys()) {
content_description->set_manually_specify_keys(true);
}
auto error = CreateMediaContentOffer(
media_description_options, session_options,
@ -2226,6 +2230,10 @@ RTCError MediaSessionDescriptionFactory::AddRtpContentForAnswer(
} else {
answer_content = std::make_unique<VideoContentDescription>();
}
// RingRTC: Allow out-of-band / "manual" key negotiation.
if (manually_specify_keys()) {
answer_content->set_manually_specify_keys(true);
}
if (!SetCodecsInAnswer(
offer_content_description, filtered_codecs, media_description_options,
session_options, ssrc_generator(), current_streams,

6
pc/sdp_offer_answer.cc
View file

@ -3557,11 +3557,7 @@ RTCError SdpOfferAnswerHandler::ValidateSessionDescription(
// Verify crypto settings.
std::string crypto_error;
// RingRTC: Allow out-of-band / "manual" key negotiation.
// Do not verify if "ManuallySpecifyKeys" is set; `VerifyCrypto` only makes
// sense for DTLS.
if (!webrtc_session_desc_factory_->ManuallySpecifyKeys() &&
pc_->dtls_enabled()) {
if (pc_->dtls_enabled()) {
RTCError crypto_error = VerifyCrypto(
sdesc->description(), pc_->dtls_enabled(), bundle_groups_by_mid);
if (!crypto_error.ok()) {

3
pc/session_description.h
View file

@ -128,6 +128,8 @@ class MediaContentDescription {
void set_crypto(const absl::optional<CryptoParams>& crypto) {
crypto_ = crypto;
}
void set_manually_specify_keys(bool b) { manually_specify_keys_ = b;}
bool manually_specify_keys() const { return manually_specify_keys_; }
// List of RTP header extensions. URIs are **NOT** guaranteed to be unique
// as they can appear twice when both encrypted and non-encrypted extensions
@ -270,6 +272,7 @@ class MediaContentDescription {
// RingRTC: Allow out-of-band / "manual" key negotiation.
absl::optional<CryptoParams> crypto_;
bool manually_specify_keys_ = false;
std::vector<webrtc::RtpExtension> rtp_header_extensions_;
bool rtp_header_extensions_set_ = false;
StreamParamsVec send_streams_;

2
ringrtc/rffi/src/peer_connection.cc
View file

@ -352,6 +352,7 @@ Rust_sessionDescriptionFromV4(bool offer,
auto set_rtp_params = [] (cricket::MediaContentDescription* media) {
media->set_protocol(cricket::kMediaProtocolSavpf);
media->set_manually_specify_keys(true);
media->set_rtcp_mux(true);
media->set_direction(webrtc::RtpTransceiverDirection::kSendRecv);
};
@ -547,6 +548,7 @@ CreateSessionDescriptionForGroupCall(bool local,
media->set_protocol(cricket::kMediaProtocolSavpf);
media->set_rtcp_mux(true);
media->set_manually_specify_keys(true);
media->set_crypto(crypto_params);
};