void
PeerConnectionMedia::FinalizeIceRestart()
{
ASSERT_ON_THREAD(mMainThread);
if (!IsIceRestarting()) {
return;
}
RUN_ON_THREAD(GetSTSThread(),
WrapRunnable(
RefPtr<PeerConnectionMedia>(this),
&PeerConnectionMedia::FinalizeIceRestart_s),
NS_DISPATCH_NORMAL);
mIceRestartState = ICE_RESTART_NONE;
}
void
PeerConnectionMedia::BeginIceRestart(const std::string& ufrag,
const std::string& pwd)
{
ASSERT_ON_THREAD(mMainThread);
if (IsIceRestarting()) {
return;
}
RefPtr<NrIceCtx> new_ctx = mIceCtxHdlr->CreateCtx(ufrag, pwd);
RUN_ON_THREAD(GetSTSThread(),
WrapRunnable(
RefPtr<PeerConnectionMedia>(this),
&PeerConnectionMedia::BeginIceRestart_s,
new_ctx),
NS_DISPATCH_NORMAL);
mIceRestartState = ICE_RESTART_PROVISIONAL;
}
nsresult
PeerConnectionMedia::UpdateTransportFlow(
size_t aLevel,
bool aIsRtcp,
const JsepTransport& aTransport)
{
if (aIsRtcp && aTransport.mComponents < 2) {
RemoveTransportFlow(aLevel, aIsRtcp);
return NS_OK;
}
if (!aIsRtcp && !aTransport.mComponents) {
RemoveTransportFlow(aLevel, aIsRtcp);
return NS_OK;
}
nsresult rv;
RefPtr<TransportFlow> flow = GetTransportFlow(aLevel, aIsRtcp);
if (flow) {
if (IsIceRestarting()) {
CSFLogInfo(LOGTAG, "Flow[%s]: detected ICE restart - level: %u rtcp: %d",
flow->id().c_str(), (unsigned)aLevel, aIsRtcp);
RefPtr<PeerConnectionMedia> pcMedia(this);
rv = GetSTSThread()->Dispatch(
WrapRunnableNM(AddNewIceStreamForRestart_s,
pcMedia, flow, aLevel, aIsRtcp),
NS_DISPATCH_NORMAL);
if (NS_FAILED(rv)) {
CSFLogError(LOGTAG, "Failed to dispatch AddNewIceStreamForRestart_s");
return rv;
}
}
return NS_OK;
}
std::ostringstream osId;
osId << mParentHandle << ":" << aLevel << "," << (aIsRtcp ? "rtcp" : "rtp");
flow = new TransportFlow(osId.str());
// The media streams are made on STS so we need to defer setup.
auto ice = MakeUnique<TransportLayerIce>();
auto dtls = MakeUnique<TransportLayerDtls>();
dtls->SetRole(aTransport.mDtls->GetRole() ==
JsepDtlsTransport::kJsepDtlsClient
? TransportLayerDtls::CLIENT
: TransportLayerDtls::SERVER);
RefPtr<DtlsIdentity> pcid = mParent->Identity();
if (!pcid) {
CSFLogError(LOGTAG, "Failed to get DTLS identity.");
return NS_ERROR_FAILURE;
}
dtls->SetIdentity(pcid);
const SdpFingerprintAttributeList& fingerprints =
aTransport.mDtls->GetFingerprints();
for (const auto& fingerprint : fingerprints.mFingerprints) {
std::ostringstream ss;
ss << fingerprint.hashFunc;
rv = dtls->SetVerificationDigest(ss.str(), &fingerprint.fingerprint[0],
fingerprint.fingerprint.size());
if (NS_FAILED(rv)) {
CSFLogError(LOGTAG, "Could not set fingerprint");
return rv;
}
}
std::vector<uint16_t> srtpCiphers;
srtpCiphers.push_back(SRTP_AES128_CM_HMAC_SHA1_80);
srtpCiphers.push_back(SRTP_AES128_CM_HMAC_SHA1_32);
rv = dtls->SetSrtpCiphers(srtpCiphers);
if (NS_FAILED(rv)) {
CSFLogError(LOGTAG, "Couldn't set SRTP ciphers");
return rv;
}
// Always permits negotiation of the confidential mode.
// Only allow non-confidential (which is an allowed default),
// if we aren't confidential.
std::set<std::string> alpn;
std::string alpnDefault = "";
alpn.insert("c-webrtc");
if (!mParent->PrivacyRequested()) {
alpnDefault = "webrtc";
alpn.insert(alpnDefault);
}
rv = dtls->SetAlpn(alpn, alpnDefault);
if (NS_FAILED(rv)) {
CSFLogError(LOGTAG, "Couldn't set ALPN");
return rv;
}
nsAutoPtr<PtrVector<TransportLayer> > layers(new PtrVector<TransportLayer>);
layers->values.push_back(ice.release());
layers->values.push_back(dtls.release());
RefPtr<PeerConnectionMedia> pcMedia(this);
rv = GetSTSThread()->Dispatch(
WrapRunnableNM(FinalizeTransportFlow_s, pcMedia, flow, aLevel, aIsRtcp,
layers),
NS_DISPATCH_NORMAL);
if (NS_FAILED(rv)) {
CSFLogError(LOGTAG, "Failed to dispatch FinalizeTransportFlow_s");
return rv;
}
AddTransportFlow(aLevel, aIsRtcp, flow);
return NS_OK;
}
