void NrIceMediaStream::Ready() {
MOZ_MTLOG(ML_DEBUG, "Marking stream ready '" << name_ << "'");
state_ = ICE_OPEN;
SignalReady(this);
}
RefPtr<NrIceCtx> NrIceCtx::Create(const std::string& name,
bool offerer,
bool set_interface_priorities,
bool allow_loopback) {
RefPtr<NrIceCtx> ctx = new NrIceCtx(name, offerer);
// Initialize the crypto callbacks and logging stuff
if (!initialized) {
NR_reg_init(NR_REG_MODE_LOCAL);
RLogRingBuffer::CreateInstance();
nr_crypto_vtbl = &nr_ice_crypto_nss_vtbl;
initialized = true;
// Set the priorites for candidate type preferences.
// These numbers come from RFC 5245 S. 4.1.2.2
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_SRV_RFLX, 100);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_PEER_RFLX, 110);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_HOST, 126);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_RELAYED, 5);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_RELAYED_TCP, 0);
if (set_interface_priorities) {
NR_reg_set_uchar((char *)"ice.pref.interface.rl0", 255);
NR_reg_set_uchar((char *)"ice.pref.interface.wi0", 254);
NR_reg_set_uchar((char *)"ice.pref.interface.lo0", 253);
NR_reg_set_uchar((char *)"ice.pref.interface.en1", 252);
NR_reg_set_uchar((char *)"ice.pref.interface.en0", 251);
NR_reg_set_uchar((char *)"ice.pref.interface.eth0", 252);
NR_reg_set_uchar((char *)"ice.pref.interface.eth1", 251);
NR_reg_set_uchar((char *)"ice.pref.interface.eth2", 249);
NR_reg_set_uchar((char *)"ice.pref.interface.ppp", 250);
NR_reg_set_uchar((char *)"ice.pref.interface.ppp0", 249);
NR_reg_set_uchar((char *)"ice.pref.interface.en2", 248);
NR_reg_set_uchar((char *)"ice.pref.interface.en3", 247);
NR_reg_set_uchar((char *)"ice.pref.interface.em0", 251);
NR_reg_set_uchar((char *)"ice.pref.interface.em1", 252);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet0", 240);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet1", 241);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet3", 239);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet4", 238);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet5", 237);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet6", 236);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet7", 235);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet8", 234);
NR_reg_set_uchar((char *)"ice.pref.interface.virbr0", 233);
NR_reg_set_uchar((char *)"ice.pref.interface.wlan0", 232);
}
NR_reg_set_uint4((char *)"stun.client.maximum_transmits",7);
NR_reg_set_uint4((char *)NR_ICE_REG_TRICKLE_GRACE_PERIOD, 5000);
if (allow_loopback) {
NR_reg_set_char((char *)NR_STUN_REG_PREF_ALLOW_LOOPBACK_ADDRS, 1);
}
}
// Create the ICE context
int r;
UINT4 flags = offerer ? NR_ICE_CTX_FLAGS_OFFERER:
NR_ICE_CTX_FLAGS_ANSWERER;
flags |= NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION;
r = nr_ice_ctx_create(const_cast<char *>(name.c_str()), flags,
&ctx->ctx_);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't create ICE ctx for '" << name << "'");
return nullptr;
}
#ifdef USE_INTERFACE_PRIORITIZER
nr_interface_prioritizer *prioritizer = CreateInterfacePrioritizer();
if (!prioritizer) {
MOZ_MTLOG(PR_LOG_ERROR, "Couldn't create interface prioritizer.");
return nullptr;
}
r = nr_ice_ctx_set_interface_prioritizer(ctx->ctx_, prioritizer);
if (r) {
MOZ_MTLOG(PR_LOG_ERROR, "Couldn't set interface prioritizer.");
return nullptr;
}
#endif // USE_INTERFACE_PRIORITIZER
if (ctx->generating_trickle()) {
r = nr_ice_ctx_set_trickle_cb(ctx->ctx_, &NrIceCtx::trickle_cb, ctx);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't set trickle cb for '" << name << "'");
return nullptr;
}
}
// Create the handler objects
ctx->ice_handler_vtbl_ = new nr_ice_handler_vtbl();
ctx->ice_handler_vtbl_->select_pair = &NrIceCtx::select_pair;
ctx->ice_handler_vtbl_->stream_ready = &NrIceCtx::stream_ready;
ctx->ice_handler_vtbl_->stream_failed = &NrIceCtx::stream_failed;
ctx->ice_handler_vtbl_->ice_completed = &NrIceCtx::ice_completed;
ctx->ice_handler_vtbl_->msg_recvd = &NrIceCtx::msg_recvd;
ctx->ice_handler_vtbl_->ice_checking = &NrIceCtx::ice_checking;
ctx->ice_handler_ = new nr_ice_handler();
ctx->ice_handler_->vtbl = ctx->ice_handler_vtbl_;
ctx->ice_handler_->obj = ctx;
// Create the peer ctx. Because we do not support parallel forking, we
// only have one peer ctx.
std::string peer_name = name + ":default";
r = nr_ice_peer_ctx_create(ctx->ctx_, ctx->ice_handler_,
const_cast<char *>(peer_name.c_str()),
&ctx->peer_);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't create ICE peer ctx for '" << name << "'");
return nullptr;
}
nsresult rv;
ctx->sts_target_ = do_GetService(NS_SOCKETTRANSPORTSERVICE_CONTRACTID, &rv);
if (!NS_SUCCEEDED(rv))
return nullptr;
return ctx;
}
void TransportLayerLogging::StateChange(TransportLayer *layer, State state) {
MOZ_MTLOG(ML_DEBUG, LAYER_INFO << "Received StateChange to " << state);
SetState(state);
}
/*
* Add external H.264 video codec.
*/
MediaConduitErrorCode
MediaPipelineFactory::EnsureExternalCodec(VideoSessionConduit& aConduit,
VideoCodecConfig* aConfig,
bool aIsSend)
{
if (aConfig->mName == "VP8") {
#ifdef MOZ_WEBRTC_MEDIACODEC
if (aIsSend) {
#ifdef MOZILLA_INTERNAL_API
bool enabled = mozilla::Preferences::GetBool("media.navigator.hardware.vp8_encode.acceleration_enabled", false);
#else
bool enabled = false;
#endif
if (enabled) {
nsCOMPtr<nsIGfxInfo> gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
if (gfxInfo) {
int32_t status;
if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_WEBRTC_HW_ACCELERATION_ENCODE, &status))) {
if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
NS_WARNING("VP8 encoder hardware is not whitelisted: disabling.\n");
} else {
VideoEncoder* encoder = nullptr;
encoder = MediaCodecVideoCodec::CreateEncoder(MediaCodecVideoCodec::CodecType::CODEC_VP8);
if (encoder) {
return aConduit.SetExternalSendCodec(aConfig, encoder);
} else {
return kMediaConduitNoError;
}
}
}
}
}
} else {
#ifdef MOZILLA_INTERNAL_API
bool enabled = mozilla::Preferences::GetBool("media.navigator.hardware.vp8_decode.acceleration_enabled", false);
#else
bool enabled = false;
#endif
if (enabled) {
nsCOMPtr<nsIGfxInfo> gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
if (gfxInfo) {
int32_t status;
if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_WEBRTC_HW_ACCELERATION_DECODE, &status))) {
if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
NS_WARNING("VP8 decoder hardware is not whitelisted: disabling.\n");
} else {
VideoDecoder* decoder;
decoder = MediaCodecVideoCodec::CreateDecoder(MediaCodecVideoCodec::CodecType::CODEC_VP8);
if (decoder) {
return aConduit.SetExternalRecvCodec(aConfig, decoder);
} else {
return kMediaConduitNoError;
}
}
}
}
}
}
#endif
return kMediaConduitNoError;
} else if (aConfig->mName == "VP9") {
return kMediaConduitNoError;
} else if (aConfig->mName == "H264") {
if (aConduit.CodecPluginID() != 0) {
return kMediaConduitNoError;
}
// Register H.264 codec.
if (aIsSend) {
VideoEncoder* encoder = nullptr;
#ifdef MOZ_WEBRTC_OMX
encoder =
OMXVideoCodec::CreateEncoder(OMXVideoCodec::CodecType::CODEC_H264);
#elif !defined(MOZILLA_XPCOMRT_API)
encoder = GmpVideoCodec::CreateEncoder();
#endif
if (encoder) {
return aConduit.SetExternalSendCodec(aConfig, encoder);
} else {
return kMediaConduitInvalidSendCodec;
}
} else {
VideoDecoder* decoder = nullptr;
#ifdef MOZ_WEBRTC_OMX
decoder =
OMXVideoCodec::CreateDecoder(OMXVideoCodec::CodecType::CODEC_H264);
#elif !defined(MOZILLA_XPCOMRT_API)
decoder = GmpVideoCodec::CreateDecoder();
#endif
if (decoder) {
return aConduit.SetExternalRecvCodec(aConfig, decoder);
} else {
return kMediaConduitInvalidReceiveCodec;
}
}
NS_NOTREACHED("Shouldn't get here!");
} else {
MOZ_MTLOG(ML_ERROR,
"Invalid video codec configured: " << aConfig->mName.c_str());
return aIsSend ? kMediaConduitInvalidSendCodec
: kMediaConduitInvalidReceiveCodec;
}
NS_NOTREACHED("Shouldn't get here!");
}
RefPtr<SrtpFlow> SrtpFlow::Create(int cipher_suite,
bool inbound,
const void *key,
size_t key_len) {
nsresult res = Init();
if (!NS_SUCCEEDED(res))
return nullptr;
RefPtr<SrtpFlow> flow = new SrtpFlow();
if (!key) {
MOZ_MTLOG(ML_ERROR, "Null SRTP key specified");
return nullptr;
}
if (key_len != SRTP_TOTAL_KEY_LENGTH) {
MOZ_MTLOG(ML_ERROR, "Invalid SRTP key length");
return nullptr;
}
srtp_policy_t policy;
memset(&policy, 0, sizeof(srtp_policy_t));
// Note that we set the same cipher suite for RTP and RTCP
// since any flow can only have one cipher suite with DTLS-SRTP
switch (cipher_suite) {
case SRTP_AES128_CM_HMAC_SHA1_80:
MOZ_MTLOG(ML_DEBUG,
"Setting SRTP cipher suite SRTP_AES128_CM_HMAC_SHA1_80");
crypto_policy_set_aes_cm_128_hmac_sha1_80(&policy.rtp);
crypto_policy_set_aes_cm_128_hmac_sha1_80(&policy.rtcp);
break;
case SRTP_AES128_CM_HMAC_SHA1_32:
MOZ_MTLOG(ML_DEBUG,
"Setting SRTP cipher suite SRTP_AES128_CM_HMAC_SHA1_32");
crypto_policy_set_aes_cm_128_hmac_sha1_32(&policy.rtp);
crypto_policy_set_aes_cm_128_hmac_sha1_80(&policy.rtcp); // 80-bit per RFC 5764
break; // S 4.1.2.
default:
MOZ_MTLOG(ML_ERROR, "Request to set unknown SRTP cipher suite");
return nullptr;
}
// This key is copied into the srtp_t object, so we don't
// need to keep it.
policy.key = const_cast<unsigned char *>(
static_cast<const unsigned char *>(key));
policy.ssrc.type = inbound ? ssrc_any_inbound : ssrc_any_outbound;
policy.ssrc.value = 0;
policy.ekt = nullptr;
policy.window_size = 1024; // Use the Chrome value. Needs to be revisited. Default is 128
policy.allow_repeat_tx = 1; // Use Chrome value; needed for NACK mode to work
policy.next = nullptr;
// Now make the session
err_status_t r = srtp_create(&flow->session_, &policy);
if (r != err_status_ok) {
MOZ_MTLOG(ML_ERROR, "Error creating srtp session");
return nullptr;
}
return flow;
}
RefPtr<NrIceCtx> NrIceCtx::Create(const std::string& name,
bool offerer,
bool allow_loopback,
bool tcp_enabled,
bool allow_link_local,
bool hide_non_default,
Policy policy) {
RefPtr<NrIceCtx> ctx = new NrIceCtx(name, offerer, policy);
// Initialize the crypto callbacks and logging stuff
if (!initialized) {
NR_reg_init(NR_REG_MODE_LOCAL);
RLogRingBuffer::CreateInstance();
nr_crypto_vtbl = &nr_ice_crypto_nss_vtbl;
initialized = true;
// Set the priorites for candidate type preferences.
// These numbers come from RFC 5245 S. 4.1.2.2
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_SRV_RFLX, 100);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_PEER_RFLX, 110);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_HOST, 126);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_RELAYED, 5);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_SRV_RFLX_TCP, 99);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_PEER_RFLX_TCP, 109);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_HOST_TCP, 125);
NR_reg_set_uchar((char *)NR_ICE_REG_PREF_TYPE_RELAYED_TCP, 0);
int32_t stun_client_maximum_transmits = 7;
int32_t ice_trickle_grace_period = 5000;
int32_t ice_tcp_so_sock_count = 3;
int32_t ice_tcp_listen_backlog = 10;
nsAutoCString force_net_interface;
#ifndef MOZILLA_XPCOMRT_API
nsresult res;
nsCOMPtr<nsIPrefService> prefs =
do_GetService("@mozilla.org/preferences-service;1", &res);
if (NS_SUCCEEDED(res)) {
nsCOMPtr<nsIPrefBranch> branch = do_QueryInterface(prefs);
if (branch) {
branch->GetIntPref(
"media.peerconnection.ice.stun_client_maximum_transmits",
&stun_client_maximum_transmits);
branch->GetIntPref(
"media.peerconnection.ice.trickle_grace_period",
&ice_trickle_grace_period);
branch->GetIntPref(
"media.peerconnection.ice.tcp_so_sock_count",
&ice_tcp_so_sock_count);
branch->GetIntPref(
"media.peerconnection.ice.tcp_listen_backlog",
&ice_tcp_listen_backlog);
branch->GetCharPref(
"media.peerconnection.ice.force_interface",
getter_Copies(force_net_interface));
}
}
#endif
NR_reg_set_uint4((char *)"stun.client.maximum_transmits",
stun_client_maximum_transmits);
NR_reg_set_uint4((char *)NR_ICE_REG_TRICKLE_GRACE_PERIOD,
ice_trickle_grace_period);
NR_reg_set_int4((char *)NR_ICE_REG_ICE_TCP_SO_SOCK_COUNT,
ice_tcp_so_sock_count);
NR_reg_set_int4((char *)NR_ICE_REG_ICE_TCP_LISTEN_BACKLOG,
ice_tcp_listen_backlog);
NR_reg_set_char((char *)NR_ICE_REG_ICE_TCP_DISABLE, !tcp_enabled);
if (allow_loopback) {
NR_reg_set_char((char *)NR_STUN_REG_PREF_ALLOW_LOOPBACK_ADDRS, 1);
}
if (allow_link_local) {
NR_reg_set_char((char *)NR_STUN_REG_PREF_ALLOW_LINK_LOCAL_ADDRS, 1);
}
if (force_net_interface.Length() > 0) {
// Stupid cast.... but needed
const nsCString& flat = PromiseFlatCString(static_cast<nsACString&>(force_net_interface));
NR_reg_set_string((char *)NR_ICE_REG_PREF_FORCE_INTERFACE_NAME, const_cast<char*>(flat.get()));
}
}
// Create the ICE context
int r;
UINT4 flags = offerer ? NR_ICE_CTX_FLAGS_OFFERER:
NR_ICE_CTX_FLAGS_ANSWERER;
flags |= NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION;
if (policy == ICE_POLICY_RELAY) {
flags |= NR_ICE_CTX_FLAGS_RELAY_ONLY;
}
if (hide_non_default)
flags |= NR_ICE_CTX_FLAGS_ONLY_DEFAULT_ADDRS;
r = nr_ice_ctx_create(const_cast<char *>(name.c_str()), flags,
&ctx->ctx_);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't create ICE ctx for '" << name << "'");
return nullptr;
}
nr_interface_prioritizer *prioritizer = CreateInterfacePrioritizer();
if (!prioritizer) {
MOZ_MTLOG(LogLevel::Error, "Couldn't create interface prioritizer.");
return nullptr;
}
r = nr_ice_ctx_set_interface_prioritizer(ctx->ctx_, prioritizer);
if (r) {
MOZ_MTLOG(LogLevel::Error, "Couldn't set interface prioritizer.");
return nullptr;
}
if (ctx->generating_trickle()) {
r = nr_ice_ctx_set_trickle_cb(ctx->ctx_, &NrIceCtx::trickle_cb, ctx);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't set trickle cb for '" << name << "'");
return nullptr;
}
}
// Create the handler objects
ctx->ice_handler_vtbl_ = new nr_ice_handler_vtbl();
ctx->ice_handler_vtbl_->select_pair = &NrIceCtx::select_pair;
ctx->ice_handler_vtbl_->stream_ready = &NrIceCtx::stream_ready;
ctx->ice_handler_vtbl_->stream_failed = &NrIceCtx::stream_failed;
ctx->ice_handler_vtbl_->ice_completed = &NrIceCtx::ice_completed;
ctx->ice_handler_vtbl_->msg_recvd = &NrIceCtx::msg_recvd;
ctx->ice_handler_vtbl_->ice_checking = &NrIceCtx::ice_checking;
ctx->ice_handler_ = new nr_ice_handler();
ctx->ice_handler_->vtbl = ctx->ice_handler_vtbl_;
ctx->ice_handler_->obj = ctx;
// Create the peer ctx. Because we do not support parallel forking, we
// only have one peer ctx.
std::string peer_name = name + ":default";
r = nr_ice_peer_ctx_create(ctx->ctx_, ctx->ice_handler_,
const_cast<char *>(peer_name.c_str()),
&ctx->peer_);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't create ICE peer ctx for '" << name << "'");
return nullptr;
}
nsresult rv;
ctx->sts_target_ = do_GetService(NS_SOCKETTRANSPORTSERVICE_CONTRACTID, &rv);
if (!NS_SUCCEEDED(rv))
return nullptr;
return ctx;
}
nsresult
MediaPipelineFactory::GetOrCreateVideoConduit(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack,
RefPtr<MediaSessionConduit>* aConduitp)
{
if (!aTrack.GetNegotiatedDetails()) {
MOZ_ASSERT(false, "Track is missing negotiated details");
return NS_ERROR_INVALID_ARG;
}
bool receiving = aTrack.GetDirection() == sdp::kRecv;
RefPtr<VideoSessionConduit> conduit =
mPCMedia->GetVideoConduit(aTrackPair.mLevel);
if (!conduit) {
conduit = VideoSessionConduit::Create();
if (!conduit) {
MOZ_MTLOG(ML_ERROR, "Could not create video conduit");
return NS_ERROR_FAILURE;
}
mPCMedia->AddVideoConduit(aTrackPair.mLevel, conduit);
}
if (!GetBestCodec(*aTrack.GetNegotiatedDetails())) {
MOZ_MTLOG(ML_ERROR, "Can't set up a conduit with 0 codecs");
return NS_ERROR_FAILURE;
}
size_t numCodecs = aTrack.GetNegotiatedDetails()->GetCodecCount();
bool configuredH264 = false;
if (receiving) {
PtrVector<VideoCodecConfig> configs;
for (size_t i = 0; i < numCodecs; i++) {
const JsepCodecDescription* cdesc =
aTrack.GetNegotiatedDetails()->GetCodec(i);
// We can only handle configuring one recv H264 codec
if (configuredH264 && (cdesc->mName == "H264")) {
continue;
}
VideoCodecConfig* configRaw;
nsresult rv = JsepCodecDescToCodecConfig(*cdesc, &configRaw);
if (NS_FAILED(rv))
return rv;
UniquePtr<VideoCodecConfig> config(configRaw);
if (EnsureExternalCodec(*conduit, config.get(), false)) {
continue;
}
if (cdesc->mName == "H264") {
configuredH264 = true;
}
configs.values.push_back(config.release());
}
auto error = conduit->ConfigureRecvMediaCodecs(configs.values);
if (error) {
MOZ_MTLOG(ML_ERROR, "ConfigureRecvMediaCodecs failed: " << error);
return NS_ERROR_FAILURE;
}
if (!aTrackPair.mSending) {
// No send track, but we still need to configure an SSRC for receiver
// reports.
if (!conduit->SetLocalSSRC(aTrackPair.mRecvonlySsrc)) {
MOZ_MTLOG(ML_ERROR, "SetLocalSSRC failed");
return NS_ERROR_FAILURE;
}
}
} else {
// For now we only expect to have one ssrc per local track.
auto ssrcs = aTrack.GetSsrcs();
if (!ssrcs.empty()) {
if (!conduit->SetLocalSSRC(ssrcs.front())) {
MOZ_MTLOG(ML_ERROR, "SetLocalSSRC failed");
return NS_ERROR_FAILURE;
}
}
conduit->SetLocalCNAME(aTrack.GetCNAME().c_str());
const JsepCodecDescription* cdesc =
GetBestCodec(*aTrack.GetNegotiatedDetails());
VideoCodecConfig* configRaw;
nsresult rv = JsepCodecDescToCodecConfig(*cdesc, &configRaw);
if (NS_FAILED(rv))
return rv;
rv = ConfigureVideoCodecMode(aTrack,*conduit);
if (NS_FAILED(rv)) {
return rv;
}
// Take possession of this pointer
ScopedDeletePtr<VideoCodecConfig> config(configRaw);
if (EnsureExternalCodec(*conduit, config, true)) {
MOZ_MTLOG(ML_ERROR, "External codec not available");
return NS_ERROR_FAILURE;
}
auto error = conduit->ConfigureSendMediaCodec(config);
if (error) {
MOZ_MTLOG(ML_ERROR, "ConfigureSendMediaCodec failed: " << error);
return NS_ERROR_FAILURE;
}
}
*aConduitp = conduit;
return NS_OK;
}
nsresult
MediaPipelineFactory::CreateOrUpdateMediaPipeline(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack)
{
#if !defined(MOZILLA_EXTERNAL_LINKAGE)
// The GMP code is all the way on the other side of webrtc.org, and it is not
// feasible to plumb this information all the way through. So, we set it (for
// the duration of this call) in a global variable. This allows the GMP code
// to report errors to the PC.
WebrtcGmpPCHandleSetter setter(mPC->GetHandle());
#endif
MOZ_ASSERT(aTrackPair.mRtpTransport);
bool receiving = aTrack.GetDirection() == sdp::kRecv;
size_t level;
RefPtr<TransportFlow> rtpFlow;
RefPtr<TransportFlow> rtcpFlow;
nsAutoPtr<MediaPipelineFilter> filter;
nsresult rv = GetTransportParameters(aTrackPair,
aTrack,
&level,
&rtpFlow,
&rtcpFlow,
&filter);
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Failed to get transport parameters for pipeline, rv="
<< static_cast<unsigned>(rv));
return rv;
}
if (aTrack.GetMediaType() == SdpMediaSection::kApplication) {
// GetTransportParameters has already done everything we need for
// datachannel.
return NS_OK;
}
// Find the stream we need
SourceStreamInfo* stream;
if (receiving) {
stream = mPCMedia->GetRemoteStreamById(aTrack.GetStreamId());
} else {
stream = mPCMedia->GetLocalStreamById(aTrack.GetStreamId());
}
if (!stream) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " stream id " << aTrack.GetStreamId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
if (!stream->HasTrack(aTrack.GetTrackId())) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " track id " << aTrack.GetTrackId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
RefPtr<MediaSessionConduit> conduit;
if (aTrack.GetMediaType() == SdpMediaSection::kAudio) {
rv = GetOrCreateAudioConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else if (aTrack.GetMediaType() == SdpMediaSection::kVideo) {
rv = GetOrCreateVideoConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else {
// We've created the TransportFlow, nothing else to do here.
return NS_OK;
}
RefPtr<MediaPipeline> pipeline =
stream->GetPipelineByTrackId_m(aTrack.GetTrackId());
if (pipeline && pipeline->level() != static_cast<int>(level)) {
MOZ_MTLOG(ML_WARNING, "Track " << aTrack.GetTrackId() <<
" has moved from level " << pipeline->level() <<
" to level " << level <<
". This requires re-creating the MediaPipeline.");
// Since we do not support changing the conduit on a pre-existing
// MediaPipeline
pipeline = nullptr;
stream->RemoveTrack(aTrack.GetTrackId());
stream->AddTrack(aTrack.GetTrackId());
}
if (pipeline) {
pipeline->UpdateTransport_m(level, rtpFlow, rtcpFlow, filter);
return NS_OK;
}
MOZ_MTLOG(ML_DEBUG,
"Creating media pipeline"
<< " m-line index=" << aTrackPair.mLevel
<< " type=" << aTrack.GetMediaType()
<< " direction=" << aTrack.GetDirection());
if (receiving) {
rv = CreateMediaPipelineReceiving(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
} else {
rv = CreateMediaPipelineSending(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
}
return NS_OK;
}
nsresult
MediaPipelineFactory::CreateMediaPipelineReceiving(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack,
size_t aLevel,
RefPtr<TransportFlow> aRtpFlow,
RefPtr<TransportFlow> aRtcpFlow,
nsAutoPtr<MediaPipelineFilter> aFilter,
const RefPtr<MediaSessionConduit>& aConduit)
{
// We will error out earlier if this isn't here.
RefPtr<RemoteSourceStreamInfo> stream =
mPCMedia->GetRemoteStreamById(aTrack.GetStreamId());
RefPtr<MediaPipelineReceive> pipeline;
TrackID numericTrackId = stream->GetNumericTrackId(aTrack.GetTrackId());
MOZ_ASSERT(numericTrackId != TRACK_INVALID);
bool queue_track = stream->ShouldQueueTracks();
MOZ_MTLOG(ML_DEBUG, __FUNCTION__ << ": Creating pipeline for "
<< numericTrackId << " -> " << aTrack.GetTrackId());
if (aTrack.GetMediaType() == SdpMediaSection::kAudio) {
pipeline = new MediaPipelineReceiveAudio(
mPC->GetHandle(),
mPC->GetMainThread().get(),
mPC->GetSTSThread(),
stream->GetMediaStream()->GetInputStream(),
aTrack.GetTrackId(),
numericTrackId,
aLevel,
static_cast<AudioSessionConduit*>(aConduit.get()), // Ugly downcast.
aRtpFlow,
aRtcpFlow,
aFilter,
queue_track);
} else if (aTrack.GetMediaType() == SdpMediaSection::kVideo) {
pipeline = new MediaPipelineReceiveVideo(
mPC->GetHandle(),
mPC->GetMainThread().get(),
mPC->GetSTSThread(),
stream->GetMediaStream()->GetInputStream(),
aTrack.GetTrackId(),
numericTrackId,
aLevel,
static_cast<VideoSessionConduit*>(aConduit.get()), // Ugly downcast.
aRtpFlow,
aRtcpFlow,
aFilter,
queue_track);
} else {
MOZ_ASSERT(false);
MOZ_MTLOG(ML_ERROR, "Invalid media type in CreateMediaPipelineReceiving");
return NS_ERROR_FAILURE;
}
nsresult rv = pipeline->Init();
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Couldn't initialize receiving pipeline");
return rv;
}
rv = stream->StorePipeline(aTrack.GetTrackId(),
RefPtr<MediaPipeline>(pipeline));
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Couldn't store receiving pipeline " <<
static_cast<unsigned>(rv));
return rv;
}
stream->SyncPipeline(pipeline);
return NS_OK;
}
bool
NrIceCtx::Initialize(const std::string& ufrag,
const std::string& pwd)
{
MOZ_ASSERT(!ufrag.empty());
MOZ_ASSERT(!pwd.empty());
if (ufrag.empty() || pwd.empty()) {
return false;
}
// Create the ICE context
int r;
UINT4 flags = offerer_ ? NR_ICE_CTX_FLAGS_OFFERER:
NR_ICE_CTX_FLAGS_ANSWERER;
flags |= NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION;
switch (policy_) {
case ICE_POLICY_RELAY:
flags |= NR_ICE_CTX_FLAGS_RELAY_ONLY;
break;
case ICE_POLICY_NO_HOST:
flags |= NR_ICE_CTX_FLAGS_HIDE_HOST_CANDIDATES;
break;
case ICE_POLICY_ALL:
break;
}
r = nr_ice_ctx_create_with_credentials(const_cast<char *>(name_.c_str()),
flags,
const_cast<char *>(ufrag.c_str()),
const_cast<char *>(pwd.c_str()),
&ctx_);
MOZ_ASSERT(ufrag == ctx_->ufrag);
MOZ_ASSERT(pwd == ctx_->pwd);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't create ICE ctx for '" << name_ << "'");
return false;
}
nr_interface_prioritizer *prioritizer = CreateInterfacePrioritizer();
if (!prioritizer) {
MOZ_MTLOG(LogLevel::Error, "Couldn't create interface prioritizer.");
return false;
}
r = nr_ice_ctx_set_interface_prioritizer(ctx_, prioritizer);
if (r) {
MOZ_MTLOG(LogLevel::Error, "Couldn't set interface prioritizer.");
return false;
}
if (generating_trickle()) {
r = nr_ice_ctx_set_trickle_cb(ctx_, &NrIceCtx::trickle_cb, this);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't set trickle cb for '" << name_ << "'");
return false;
}
}
nsCString mapping_type;
nsCString filtering_type;
bool block_udp = false;
nsresult rv;
nsCOMPtr<nsIPrefService> pref_service =
do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIPrefBranch> pref_branch;
rv = pref_service->GetBranch(nullptr, getter_AddRefs(pref_branch));
if (NS_SUCCEEDED(rv)) {
rv = pref_branch->GetCharPref(
"media.peerconnection.nat_simulator.mapping_type",
getter_Copies(mapping_type));
rv = pref_branch->GetCharPref(
"media.peerconnection.nat_simulator.filtering_type",
getter_Copies(filtering_type));
rv = pref_branch->GetBoolPref(
"media.peerconnection.nat_simulator.block_udp",
&block_udp);
}
}
if (!mapping_type.IsEmpty() && !filtering_type.IsEmpty()) {
MOZ_MTLOG(ML_DEBUG, "NAT filtering type: " << filtering_type.get());
MOZ_MTLOG(ML_DEBUG, "NAT mapping type: " << mapping_type.get());
TestNat* test_nat = new TestNat;
test_nat->filtering_type_ = TestNat::ToNatBehavior(filtering_type.get());
test_nat->mapping_type_ = TestNat::ToNatBehavior(mapping_type.get());
test_nat->block_udp_ = block_udp;
test_nat->enabled_ = true;
SetNat(test_nat);
}
// Create the handler objects
ice_handler_vtbl_ = new nr_ice_handler_vtbl();
ice_handler_vtbl_->select_pair = &NrIceCtx::select_pair;
ice_handler_vtbl_->stream_ready = &NrIceCtx::stream_ready;
ice_handler_vtbl_->stream_failed = &NrIceCtx::stream_failed;
ice_handler_vtbl_->ice_connected = &NrIceCtx::ice_connected;
ice_handler_vtbl_->msg_recvd = &NrIceCtx::msg_recvd;
ice_handler_vtbl_->ice_checking = &NrIceCtx::ice_checking;
ice_handler_vtbl_->ice_disconnected = &NrIceCtx::ice_disconnected;
ice_handler_ = new nr_ice_handler();
ice_handler_->vtbl = ice_handler_vtbl_;
ice_handler_->obj = this;
// Create the peer ctx. Because we do not support parallel forking, we
// only have one peer ctx.
std::string peer_name = name_ + ":default";
r = nr_ice_peer_ctx_create(ctx_, ice_handler_,
const_cast<char *>(peer_name.c_str()),
&peer_);
if (r) {
MOZ_MTLOG(ML_ERROR, "Couldn't create ICE peer ctx for '" << name_ << "'");
return false;
}
sts_target_ = do_GetService(NS_SOCKETTRANSPORTSERVICE_CONTRACTID, &rv);
if (!NS_SUCCEEDED(rv))
return false;
return true;
}
nsresult
MediaPipelineFactory::CreateOrGetTransportFlow(
size_t aLevel,
bool aIsRtcp,
const JsepTransport& aTransport,
RefPtr<TransportFlow>* aFlowOutparam)
{
nsresult rv;
RefPtr<TransportFlow> flow;
flow = mPCMedia->GetTransportFlow(aLevel, aIsRtcp);
if (flow) {
*aFlowOutparam = flow;
return NS_OK;
}
std::ostringstream osId;
osId << mPC->GetHandle() << ":" << 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>(mPC->GetHandle());
auto dtls = MakeUnique<TransportLayerDtls>();
dtls->SetRole(aTransport.mDtls->GetRole() ==
JsepDtlsTransport::kJsepDtlsClient
? TransportLayerDtls::CLIENT
: TransportLayerDtls::SERVER);
RefPtr<DtlsIdentity> pcid = mPC->Identity();
if (!pcid) {
MOZ_MTLOG(ML_ERROR, "Failed to get DTLS identity.");
return NS_ERROR_FAILURE;
}
dtls->SetIdentity(pcid);
const SdpFingerprintAttributeList& fingerprints =
aTransport.mDtls->GetFingerprints();
for (auto fp = fingerprints.mFingerprints.begin();
fp != fingerprints.mFingerprints.end();
++fp) {
std::ostringstream ss;
ss << fp->hashFunc;
rv = dtls->SetVerificationDigest(ss.str(), &fp->fingerprint[0],
fp->fingerprint.size());
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "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)) {
MOZ_MTLOG(ML_ERROR, "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 (!mPC->PrivacyRequested()) {
alpnDefault = "webrtc";
alpn.insert(alpnDefault);
}
rv = dtls->SetAlpn(alpn, alpnDefault);
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "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());
rv = mPCMedia->GetSTSThread()->Dispatch(
WrapRunnableNM(FinalizeTransportFlow_s, mPCMedia, flow, aLevel, aIsRtcp,
layers),
NS_DISPATCH_NORMAL);
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Failed to dispatch FinalizeTransportFlow_s");
return rv;
}
mPCMedia->AddTransportFlow(aLevel, aIsRtcp, flow);
*aFlowOutparam = flow;
return NS_OK;
}
// TODO: make sure this is called from STS. Otherwise
// we have thread safety issues
bool TransportLayerDtls::Setup() {
CheckThread();
SECStatus rv;
if (!downward_) {
MOZ_MTLOG(ML_ERROR, "DTLS layer with nothing below. This is useless");
return false;
}
nspr_io_adapter_ = new TransportLayerNSPRAdapter(downward_);
if (!identity_) {
MOZ_MTLOG(ML_ERROR, "Can't start DTLS without an identity");
return false;
}
if (verification_mode_ == VERIFY_UNSET) {
MOZ_MTLOG(ML_ERROR,
"Can't start DTLS without specifying a verification mode");
return false;
}
if (transport_layer_identity == PR_INVALID_IO_LAYER) {
transport_layer_identity = PR_GetUniqueIdentity("nssstreamadapter");
}
ScopedPRFileDesc pr_fd(PR_CreateIOLayerStub(transport_layer_identity,
&TransportLayerMethods));
MOZ_ASSERT(pr_fd != nullptr);
if (!pr_fd)
return false;
pr_fd->secret = reinterpret_cast<PRFilePrivate *>(nspr_io_adapter_.get());
ScopedPRFileDesc ssl_fd(DTLS_ImportFD(nullptr, pr_fd));
MOZ_ASSERT(ssl_fd != nullptr); // This should never happen
if (!ssl_fd) {
return false;
}
pr_fd.forget(); // ownership transfered to ssl_fd;
if (role_ == CLIENT) {
MOZ_MTLOG(ML_DEBUG, "Setting up DTLS as client");
rv = SSL_GetClientAuthDataHook(ssl_fd, GetClientAuthDataHook,
this);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't set identity");
return false;
}
} else {
MOZ_MTLOG(ML_DEBUG, "Setting up DTLS as server");
// Server side
rv = SSL_ConfigSecureServer(ssl_fd, identity_->cert(),
identity_->privkey(),
kt_rsa);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't set identity");
return false;
}
// Insist on a certificate from the client
rv = SSL_OptionSet(ssl_fd, SSL_REQUEST_CERTIFICATE, PR_TRUE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't request certificate");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_REQUIRE_CERTIFICATE, PR_TRUE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't require certificate");
return false;
}
}
// Require TLS 1.1 or 1.2. Perhaps some day in the future we will allow TLS
// 1.0 for stream modes.
SSLVersionRange version_range = {
SSL_LIBRARY_VERSION_TLS_1_1,
SSL_LIBRARY_VERSION_TLS_1_2
};
rv = SSL_VersionRangeSet(ssl_fd, &version_range);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Can't disable SSLv3");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_SESSION_TICKETS, PR_FALSE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't disable session tickets");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_NO_CACHE, PR_TRUE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't disable session caching");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_DEFLATE, PR_FALSE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't disable deflate");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_RENEGOTIATION, SSL_RENEGOTIATE_NEVER);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't disable renegotiation");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_FALSE_START, PR_FALSE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't disable false start");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_NO_LOCKS, PR_TRUE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't disable locks");
return false;
}
rv = SSL_OptionSet(ssl_fd, SSL_REUSE_SERVER_ECDHE_KEY, PR_FALSE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't disable ECDHE key reuse");
return false;
}
if (!SetupCipherSuites(ssl_fd)) {
return false;
}
// Certificate validation
rv = SSL_AuthCertificateHook(ssl_fd, AuthCertificateHook,
reinterpret_cast<void *>(this));
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't set certificate validation hook");
return false;
}
// Now start the handshake
rv = SSL_ResetHandshake(ssl_fd, role_ == SERVER ? PR_TRUE : PR_FALSE);
if (rv != SECSuccess) {
MOZ_MTLOG(ML_ERROR, "Couldn't reset handshake");
return false;
}
ssl_fd_ = ssl_fd.forget();
// Finally, get ready to receive data
downward_->SignalStateChange.connect(this, &TransportLayerDtls::StateChange);
downward_->SignalPacketReceived.connect(this, &TransportLayerDtls::PacketReceived);
if (downward_->state() == TS_OPEN) {
Handshake();
}
return true;
}
nsresult
MediaPipelineFactory::CreateOrUpdateMediaPipeline(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack)
{
MOZ_ASSERT(aTrackPair.mRtpTransport);
bool receiving =
aTrack.GetDirection() == JsepTrack::Direction::kJsepTrackReceiving;
size_t level;
RefPtr<TransportFlow> rtpFlow;
RefPtr<TransportFlow> rtcpFlow;
nsAutoPtr<MediaPipelineFilter> filter;
nsresult rv = GetTransportParameters(aTrackPair,
aTrack,
&level,
&rtpFlow,
&rtcpFlow,
&filter);
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Failed to get transport parameters for pipeline, rv="
<< static_cast<unsigned>(rv));
return rv;
}
if (aTrack.GetMediaType() == SdpMediaSection::kApplication) {
// GetTransportParameters has already done everything we need for
// datachannel.
return NS_OK;
}
// Find the stream we need
SourceStreamInfo* stream;
if (receiving) {
stream = mPCMedia->GetRemoteStreamById(aTrack.GetStreamId());
} else {
stream = mPCMedia->GetLocalStreamById(aTrack.GetStreamId());
}
if (!stream) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " stream id " << aTrack.GetStreamId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
if (!stream->HasTrack(aTrack.GetTrackId())) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " track id " << aTrack.GetTrackId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
RefPtr<MediaSessionConduit> conduit;
if (aTrack.GetMediaType() == SdpMediaSection::kAudio) {
rv = GetOrCreateAudioConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else if (aTrack.GetMediaType() == SdpMediaSection::kVideo) {
rv = GetOrCreateVideoConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else {
// We've created the TransportFlow, nothing else to do here.
return NS_OK;
}
RefPtr<MediaPipeline> pipeline =
stream->GetPipelineByTrackId_m(aTrack.GetTrackId());
if (pipeline && pipeline->level() != static_cast<int>(level)) {
MOZ_MTLOG(ML_WARNING, "Track " << aTrack.GetTrackId() <<
" has moved from level " << pipeline->level() <<
" to level " << level <<
". This requires re-creating the MediaPipeline.");
// Since we do not support changing the conduit on a pre-existing
// MediaPipeline
pipeline = nullptr;
stream->RemoveTrack(aTrack.GetTrackId());
stream->AddTrack(aTrack.GetTrackId());
}
if (pipeline) {
pipeline->UpdateTransport_m(level, rtpFlow, rtcpFlow, filter);
return NS_OK;
}
MOZ_MTLOG(ML_DEBUG,
"Creating media pipeline"
<< " m-line index=" << aTrackPair.mLevel
<< " type=" << aTrack.GetMediaType()
<< " direction=" << aTrack.GetDirection());
if (receiving) {
rv = CreateMediaPipelineReceiving(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
} else {
rv = CreateMediaPipelineSending(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
}
return NS_OK;
}
// This is all-or-nothing.
nsresult TransportFlow::PushLayers(nsAutoPtr<std::queue<TransportLayer *> > layers) {
MOZ_ASSERT(!layers->empty());
if (layers->empty()) {
MOZ_MTLOG(PR_LOG_ERROR, id_ << ": Can't call PushLayers with empty layers");
return NS_ERROR_INVALID_ARG;
}
// Don't allow pushes once we are in error state.
if (state_ == TransportLayer::TS_ERROR) {
MOZ_MTLOG(PR_LOG_ERROR, id_ << ": Can't call PushLayers in error state for flow ");
return NS_ERROR_FAILURE;
}
nsresult rv = NS_OK;
// Disconnect all the old signals.
disconnect_all();
TransportLayer *layer;
while (!layers->empty()) {
TransportLayer *old_layer = layers_.empty() ? nullptr : layers_.front();
layer = layers->front();
rv = layer->Init();
if (NS_FAILED(rv)) {
MOZ_MTLOG(PR_LOG_ERROR, id_ << ": Layer initialization failed; invalidating flow ");
break;
}
// Push the layer onto the queue.
layers_.push_front(layer);
layers->pop();
layer->Inserted(this, old_layer);
}
if (NS_FAILED(rv)) {
// Destroy any layers we could not push.
while (!layers->empty()) {
delete layers->front();
layers->pop();
}
// Now destroy the rest of the flow, because it's no longer
// in an acceptable state.
while (!layers_.empty()) {
delete layers_.front();
layers_.pop_front();
}
// Set ourselves to have failed.
StateChangeInt(TransportLayer::TS_ERROR);
// Return failure.
return rv;
}
// Finally, attach ourselves to the top layer.
layer->SignalStateChange.connect(this, &TransportFlow::StateChange);
layer->SignalPacketReceived.connect(this, &TransportFlow::PacketReceived);
StateChangeInt(layer->state()); // Signals if the state changes.
return NS_OK;
}
void NrIceMediaStream::Close() {
MOZ_MTLOG(ML_DEBUG, "Marking stream closed '" << name_ << "'");
state_ = ICE_CLOSED;
stream_ = nullptr;
}
nsresult
MediaPipelineFactory::GetOrCreateAudioConduit(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack,
RefPtr<MediaSessionConduit>* aConduitp)
{
if (!aTrack.GetNegotiatedDetails()) {
MOZ_ASSERT(false, "Track is missing negotiated details");
return NS_ERROR_INVALID_ARG;
}
bool receiving = aTrack.GetDirection() == sdp::kRecv;
RefPtr<AudioSessionConduit> conduit =
mPCMedia->GetAudioConduit(aTrackPair.mLevel);
if (!conduit) {
conduit = AudioSessionConduit::Create();
if (!conduit) {
MOZ_MTLOG(ML_ERROR, "Could not create audio conduit");
return NS_ERROR_FAILURE;
}
mPCMedia->AddAudioConduit(aTrackPair.mLevel, conduit);
}
if (!GetBestCodec(*aTrack.GetNegotiatedDetails())) {
MOZ_MTLOG(ML_ERROR, "Can't set up a conduit with 0 codecs");
return NS_ERROR_FAILURE;
}
size_t numCodecs = aTrack.GetNegotiatedDetails()->GetCodecCount();
if (receiving) {
PtrVector<AudioCodecConfig> configs;
for (size_t i = 0; i < numCodecs; i++) {
const JsepCodecDescription* cdesc =
aTrack.GetNegotiatedDetails()->GetCodec(i);
AudioCodecConfig* configRaw;
nsresult rv = JsepCodecDescToCodecConfig(*cdesc, &configRaw);
if (NS_FAILED(rv))
return rv;
configs.values.push_back(configRaw);
}
auto error = conduit->ConfigureRecvMediaCodecs(configs.values);
if (error) {
MOZ_MTLOG(ML_ERROR, "ConfigureRecvMediaCodecs failed: " << error);
return NS_ERROR_FAILURE;
}
if (!aTrackPair.mSending) {
// No send track, but we still need to configure an SSRC for receiver
// reports.
if (!conduit->SetLocalSSRC(aTrackPair.mRecvonlySsrc)) {
MOZ_MTLOG(ML_ERROR, "SetLocalSSRC failed");
return NS_ERROR_FAILURE;
}
}
} else {
// For now we only expect to have one ssrc per local track.
auto ssrcs = aTrack.GetSsrcs();
if (!ssrcs.empty()) {
if (!conduit->SetLocalSSRC(ssrcs.front())) {
MOZ_MTLOG(ML_ERROR, "SetLocalSSRC failed");
return NS_ERROR_FAILURE;
}
}
conduit->SetLocalCNAME(aTrack.GetCNAME().c_str());
const JsepCodecDescription* cdesc =
GetBestCodec(*aTrack.GetNegotiatedDetails());
AudioCodecConfig* configRaw;
nsresult rv = JsepCodecDescToCodecConfig(*cdesc, &configRaw);
if (NS_FAILED(rv))
return rv;
ScopedDeletePtr<AudioCodecConfig> config(configRaw);
auto error = conduit->ConfigureSendMediaCodec(config.get());
if (error) {
MOZ_MTLOG(ML_ERROR, "ConfigureSendMediaCodec failed: " << error);
return NS_ERROR_FAILURE;
}
const SdpExtmapAttributeList::Extmap* audioLevelExt =
aTrack.GetNegotiatedDetails()->GetExt(
"urn:ietf:params:rtp-hdrext:ssrc-audio-level");
if (audioLevelExt) {
MOZ_MTLOG(ML_DEBUG, "Calling EnableAudioLevelExtension");
error = conduit->EnableAudioLevelExtension(true, audioLevelExt->entry);
if (error) {
MOZ_MTLOG(ML_ERROR, "EnableAudioLevelExtension failed: " << error);
return NS_ERROR_FAILURE;
}
}
}
*aConduitp = conduit;
return NS_OK;
}
RefPtr<NrIceCtx> NrIceCtx::Create(const std::string& name,
bool offerer,
bool set_interface_priorities) {
RefPtr<NrIceCtx> ctx = new NrIceCtx(name, offerer);
// Initialize the crypto callbacks
if (!initialized) {
NR_reg_init(NR_REG_MODE_LOCAL);
nr_crypto_vtbl = &nr_ice_crypto_nss_vtbl;
initialized = true;
// Set the priorites for candidate type preferences
NR_reg_set_uchar((char *)"ice.pref.type.srv_rflx",100);
NR_reg_set_uchar((char *)"ice.pref.type.peer_rflx",105);
NR_reg_set_uchar((char *)"ice.pref.type.prflx",99);
NR_reg_set_uchar((char *)"ice.pref.type.host",125);
NR_reg_set_uchar((char *)"ice.pref.type.relayed",126);
if (set_interface_priorities) {
NR_reg_set_uchar((char *)"ice.pref.interface.rl0", 255);
NR_reg_set_uchar((char *)"ice.pref.interface.wi0", 254);
NR_reg_set_uchar((char *)"ice.pref.interface.lo0", 253);
NR_reg_set_uchar((char *)"ice.pref.interface.en1", 252);
NR_reg_set_uchar((char *)"ice.pref.interface.en0", 251);
NR_reg_set_uchar((char *)"ice.pref.interface.eth0", 252);
NR_reg_set_uchar((char *)"ice.pref.interface.eth1", 251);
NR_reg_set_uchar((char *)"ice.pref.interface.eth2", 249);
NR_reg_set_uchar((char *)"ice.pref.interface.ppp", 250);
NR_reg_set_uchar((char *)"ice.pref.interface.ppp0", 249);
NR_reg_set_uchar((char *)"ice.pref.interface.en2", 248);
NR_reg_set_uchar((char *)"ice.pref.interface.en3", 247);
NR_reg_set_uchar((char *)"ice.pref.interface.em0", 251);
NR_reg_set_uchar((char *)"ice.pref.interface.em1", 252);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet0", 240);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet1", 241);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet3", 239);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet4", 238);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet5", 237);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet6", 236);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet7", 235);
NR_reg_set_uchar((char *)"ice.pref.interface.vmnet8", 234);
NR_reg_set_uchar((char *)"ice.pref.interface.virbr0", 233);
NR_reg_set_uchar((char *)"ice.pref.interface.wlan0", 232);
}
NR_reg_set_uint4((char *)"stun.client.maximum_transmits",4);
}
// Create the ICE context
int r;
UINT4 flags = offerer ? NR_ICE_CTX_FLAGS_OFFERER:
NR_ICE_CTX_FLAGS_ANSWERER;
flags |= NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION;
r = nr_ice_ctx_create(const_cast<char *>(name.c_str()), flags,
&ctx->ctx_);
if (r) {
MOZ_MTLOG(PR_LOG_ERROR, "Couldn't create ICE ctx for '" << name << "'");
return nullptr;
}
// Create the handler objects
ctx->ice_handler_vtbl_ = new nr_ice_handler_vtbl();
ctx->ice_handler_vtbl_->select_pair = &NrIceCtx::select_pair;
ctx->ice_handler_vtbl_->stream_ready = &NrIceCtx::stream_ready;
ctx->ice_handler_vtbl_->stream_failed = &NrIceCtx::stream_failed;
ctx->ice_handler_vtbl_->ice_completed = &NrIceCtx::ice_completed;
ctx->ice_handler_vtbl_->msg_recvd = &NrIceCtx::msg_recvd;
ctx->ice_handler_ = new nr_ice_handler();
ctx->ice_handler_->vtbl = ctx->ice_handler_vtbl_;
ctx->ice_handler_->obj = ctx;
// Create the peer ctx. Because we do not support parallel forking, we
// only have one peer ctx.
std::string peer_name = name + ":default";
r = nr_ice_peer_ctx_create(ctx->ctx_, ctx->ice_handler_,
const_cast<char *>(peer_name.c_str()),
&ctx->peer_);
if (r) {
MOZ_MTLOG(PR_LOG_ERROR, "Couldn't create ICE peer ctx for '" << name << "'");
return nullptr;
}
nsresult rv;
ctx->sts_target_ = do_GetService(NS_SOCKETTRANSPORTSERVICE_CONTRACTID, &rv);
if (!NS_SUCCEEDED(rv))
return nullptr;
return ctx;
}
nsresult
MediaPipelineFactory::GetOrCreateVideoConduit(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack,
RefPtr<MediaSessionConduit>* aConduitp)
{
if (!aTrack.GetNegotiatedDetails()) {
MOZ_ASSERT(false, "Track is missing negotiated details");
return NS_ERROR_INVALID_ARG;
}
bool receiving = aTrack.GetDirection() == sdp::kRecv;
RefPtr<VideoSessionConduit> conduit =
mPCMedia->GetVideoConduit(aTrackPair.mLevel);
if (!conduit) {
conduit = VideoSessionConduit::Create();
if (!conduit) {
MOZ_MTLOG(ML_ERROR, "Could not create video conduit");
return NS_ERROR_FAILURE;
}
mPCMedia->AddVideoConduit(aTrackPair.mLevel, conduit);
}
PtrVector<VideoCodecConfig> configs;
nsresult rv = NegotiatedDetailsToVideoCodecConfigs(
*aTrack.GetNegotiatedDetails(), &configs);
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Failed to convert JsepCodecDescriptions to "
"VideoCodecConfigs.");
return rv;
}
if (configs.values.empty()) {
MOZ_MTLOG(ML_ERROR, "Can't set up a conduit with 0 codecs");
return NS_ERROR_FAILURE;
}
if (receiving) {
// Prune out stuff we cannot actually do. We should work to eliminate the
// need for this.
bool configuredH264 = false;
for (size_t i = 0; i < configs.values.size();) {
// TODO(bug 1200768): We can only handle configuring one recv H264 codec
if (configuredH264 && (configs.values[i]->mName == "H264")) {
delete configs.values[i];
configs.values.erase(configs.values.begin() + i);
continue;
}
// TODO(bug 1018791): This really should be checked sooner
if (EnsureExternalCodec(*conduit, configs.values[i], false)) {
delete configs.values[i];
configs.values.erase(configs.values.begin() + i);
continue;
}
if (configs.values[i]->mName == "H264") {
configuredH264 = true;
}
++i;
}
auto error = conduit->ConfigureRecvMediaCodecs(configs.values);
if (error) {
MOZ_MTLOG(ML_ERROR, "ConfigureRecvMediaCodecs failed: " << error);
return NS_ERROR_FAILURE;
}
if (!aTrackPair.mSending) {
// No send track, but we still need to configure an SSRC for receiver
// reports.
if (!conduit->SetLocalSSRC(aTrackPair.mRecvonlySsrc)) {
MOZ_MTLOG(ML_ERROR, "SetLocalSSRC failed");
return NS_ERROR_FAILURE;
}
}
} else {
// For now we only expect to have one ssrc per local track.
auto ssrcs = aTrack.GetSsrcs();
if (!ssrcs.empty()) {
if (!conduit->SetLocalSSRC(ssrcs.front())) {
MOZ_MTLOG(ML_ERROR, "SetLocalSSRC failed");
return NS_ERROR_FAILURE;
}
}
conduit->SetLocalCNAME(aTrack.GetCNAME().c_str());
rv = ConfigureVideoCodecMode(aTrack,*conduit);
if (NS_FAILED(rv)) {
return rv;
}
// TODO(bug 1018791): This really should be checked sooner
if (EnsureExternalCodec(*conduit, configs.values[0], true)) {
MOZ_MTLOG(ML_ERROR, "External codec not available");
return NS_ERROR_FAILURE;
}
auto error = conduit->ConfigureSendMediaCodec(configs.values[0]);
if (error) {
MOZ_MTLOG(ML_ERROR, "ConfigureSendMediaCodec failed: " << error);
return NS_ERROR_FAILURE;
}
}
*aConduitp = conduit;
return NS_OK;
}
