/**
* Copies the content of the most recently received packet into <tt>data</tt>.
*
* @param buffer an optional <tt>Buffer</tt> instance associated with the specified <tt>data</tt>,
* <tt>offset</tt> and <tt>length</tt> and provided to the method in case the implementation
* would like to provide additional <tt>Buffer</tt> properties such as <tt>flags</tt>
* @param data the <tt>byte[]</tt> that we'd like to copy the content of the packet to.
* @param offset the position where we are supposed to start writing in <tt>data</tt>.
* @param length the number of <tt>byte</tt>s available for writing in <tt>data</tt>.
* @return the number of bytes read
* @throws IOException if <tt>length</tt> is less than the size of the packet.
*/
protected int read(Buffer buffer, byte[] data, int offset, int length) throws IOException {
if (data == null) throw new NullPointerException("data");
if (ioError) return -1;
RawPacket pkt;
synchronized (pktSyncRoot) {
pkt = this.pkt;
this.pkt = null;
}
int pktLength;
if (pkt == null) {
pktLength = 0;
} else {
// By default, pkt will be returned to the pool after it was read.
boolean poolPkt = true;
try {
pktLength = pkt.getLength();
if (length < pktLength) {
/*
* If pkt is still the latest RawPacket made available to
* reading, reinstate it for the next invocation of read;
* otherwise, return it to the pool.
*/
poolPkt = false;
throw new IOException("Input buffer not big enough for " + pktLength);
} else {
byte[] pktBuffer = pkt.getBuffer();
if (pktBuffer == null) {
throw new NullPointerException(
"pkt.buffer null, pkt.length " + pktLength + ", pkt.offset " + pkt.getOffset());
} else {
System.arraycopy(pkt.getBuffer(), pkt.getOffset(), data, offset, pktLength);
if (buffer != null) buffer.setFlags(pkt.getFlags());
}
}
} finally {
if (!poolPkt) {
synchronized (pktSyncRoot) {
if (this.pkt == null) this.pkt = pkt;
else poolPkt = true;
}
}
if (poolPkt) {
// Return pkt to the pool because it was successfully read.
poolRawPacket(pkt);
}
}
}
return pktLength;
}
/**
* Adds a <tt>DatagramPacketFilter</tt> which allows dropping <tt>DatagramPacket</tt>s before they
* are converted into <tt>RawPacket</tt>s.
*
* @param datagramPacketFilter the <tt>DatagramPacketFilter</tt> which allows dropping
* <tt>DatagramPacket</tt>s before they are converted into <tt>RawPacket</tt>s
*/
public synchronized void addDatagramPacketFilter(DatagramPacketFilter datagramPacketFilter) {
if (datagramPacketFilter == null) throw new NullPointerException("datagramPacketFilter");
if (datagramPacketFilters == null) {
datagramPacketFilters = new DatagramPacketFilter[] {datagramPacketFilter};
} else {
final int length = datagramPacketFilters.length;
for (int i = 0; i < length; i++)
if (datagramPacketFilter.equals(datagramPacketFilters[i])) return;
DatagramPacketFilter[] newDatagramPacketFilters = new DatagramPacketFilter[length + 1];
System.arraycopy(datagramPacketFilters, 0, newDatagramPacketFilters, 0, length);
newDatagramPacketFilters[length] = datagramPacketFilter;
datagramPacketFilters = newDatagramPacketFilters;
}
}
private void runOnDtlsTransport(StreamConnector connector) throws IOException {
DtlsControlImpl dtlsControl = (DtlsControlImpl) getTransportManager().getDtlsControl(this);
DtlsTransformEngine engine = dtlsControl.getTransformEngine();
final DtlsPacketTransformer transformer = (DtlsPacketTransformer) engine.getRTPTransformer();
byte[] receiveBuffer = new byte[SCTP_BUFFER_SIZE];
if (LOG_SCTP_PACKETS) {
System.setProperty(
ConfigurationService.PNAME_SC_HOME_DIR_LOCATION, System.getProperty("java.io.tmpdir"));
System.setProperty(
ConfigurationService.PNAME_SC_HOME_DIR_NAME, SctpConnection.class.getName());
}
synchronized (this) {
// FIXME local SCTP port is hardcoded in bridge offer SDP (Jitsi
// Meet)
sctpSocket = Sctp.createSocket(5000);
assocIsUp = false;
acceptedIncomingConnection = false;
}
// Implement output network link for SCTP stack on DTLS transport
sctpSocket.setLink(
new NetworkLink() {
@Override
public void onConnOut(SctpSocket s, byte[] packet) throws IOException {
if (LOG_SCTP_PACKETS) {
LibJitsi.getPacketLoggingService()
.logPacket(
PacketLoggingService.ProtocolName.ICE4J,
new byte[] {0, 0, 0, (byte) debugId},
5000,
new byte[] {0, 0, 0, (byte) (debugId + 1)},
remoteSctpPort,
PacketLoggingService.TransportName.UDP,
true,
packet);
}
// Send through DTLS transport
transformer.sendApplicationData(packet, 0, packet.length);
}
});
if (logger.isDebugEnabled()) {
logger.debug("Connecting SCTP to port: " + remoteSctpPort + " to " + getEndpoint().getID());
}
sctpSocket.setNotificationListener(this);
sctpSocket.listen();
// FIXME manage threads
threadPool.execute(
new Runnable() {
@Override
public void run() {
SctpSocket sctpSocket = null;
try {
// sctpSocket is set to null on close
sctpSocket = SctpConnection.this.sctpSocket;
while (sctpSocket != null) {
if (sctpSocket.accept()) {
acceptedIncomingConnection = true;
break;
}
Thread.sleep(100);
sctpSocket = SctpConnection.this.sctpSocket;
}
if (isReady()) {
notifySctpConnectionReady();
}
} catch (Exception e) {
logger.error("Error accepting SCTP connection", e);
}
if (sctpSocket == null && logger.isInfoEnabled()) {
logger.info(
"SctpConnection " + getID() + " closed" + " before SctpSocket accept()-ed.");
}
}
});
// Notify that from now on SCTP connection is considered functional
sctpSocket.setDataCallback(this);
// Setup iceSocket
DatagramSocket datagramSocket = connector.getDataSocket();
if (datagramSocket != null) {
this.iceSocket = new IceUdpSocketWrapper(datagramSocket);
} else {
this.iceSocket = new IceTcpSocketWrapper(connector.getDataTCPSocket());
}
DatagramPacket rcvPacket = new DatagramPacket(receiveBuffer, 0, receiveBuffer.length);
// Receive loop, breaks when SCTP socket is closed
try {
do {
iceSocket.receive(rcvPacket);
RawPacket raw =
new RawPacket(rcvPacket.getData(), rcvPacket.getOffset(), rcvPacket.getLength());
raw = transformer.reverseTransform(raw);
// Check for app data
if (raw == null) continue;
if (LOG_SCTP_PACKETS) {
LibJitsi.getPacketLoggingService()
.logPacket(
PacketLoggingService.ProtocolName.ICE4J,
new byte[] {0, 0, 0, (byte) (debugId + 1)},
remoteSctpPort,
new byte[] {0, 0, 0, (byte) debugId},
5000,
PacketLoggingService.TransportName.UDP,
false,
raw.getBuffer(),
raw.getOffset(),
raw.getLength());
}
// Pass network packet to SCTP stack
sctpSocket.onConnIn(raw.getBuffer(), raw.getOffset(), raw.getLength());
} while (true);
} finally {
// Eventually, close the socket although it should happen from
// expire().
synchronized (this) {
assocIsUp = false;
acceptedIncomingConnection = false;
if (sctpSocket != null) {
sctpSocket.close();
sctpSocket = null;
}
}
}
}
/**
* Starts the execution of the neomedia bundle in the specified context.
*
* @param bundleContext the context in which the neomedia bundle is to start executing
* @throws Exception if an error occurs while starting the execution of the neomedia bundle in the
* specified context
*/
public void start(BundleContext bundleContext) throws Exception {
if (logger.isDebugEnabled()) logger.debug("Started.");
NeomediaActivator.bundleContext = bundleContext;
// MediaService
mediaServiceImpl = (MediaServiceImpl) LibJitsi.getMediaService();
bundleContext.registerService(MediaService.class.getName(), mediaServiceImpl, null);
if (logger.isDebugEnabled()) logger.debug("Media Service ... [REGISTERED]");
// mediaConfiguration = new MediaConfigurationImpl();
// bundleContext.registerService(
// MediaConfigurationService.class.getStatus(),
// getMediaConfiguration(),
// null);
if (logger.isDebugEnabled()) logger.debug("Media Configuration ... [REGISTERED]");
ConfigurationService cfg = NeomediaActivator.getConfigurationService();
Dictionary<String, String> mediaProps = new Hashtable<String, String>();
mediaProps.put(ConfigurationForm.FORM_TYPE, ConfigurationForm.GENERAL_TYPE);
// If the audio configuration form is disabled don't register it.
// if ((cfg == null) || !cfg.getBoolean(AUDIO_CONFIG_DISABLED_PROP, false))
// {
// audioConfigurationForm
// = new LazyConfigurationForm(
// AudioConfigurationPanel.class.getStatus(),
// getClass().getClassLoader(),
// "plugin.mediaconfig.AUDIO_ICON",
// "impl.neomedia.configform.AUDIO",
// 3);
//
// bundleContext.registerService(
// ConfigurationForm.class.getStatus(),
// audioConfigurationForm,
// mediaProps);
//
// if (deviceConfigurationPropertyChangeListener == null)
// {
// // Initializes and registers the changed device configuration
// // event ot the notification service.
// getNotificationService();
//
// deviceConfigurationPropertyChangeListener
// = new AudioDeviceConfigurationListener();
// mediaServiceImpl
// .getDeviceConfiguration()
// .addPropertyChangeListener(
// deviceConfigurationPropertyChangeListener);
// }
// }
// If the video configuration form is disabled don't register it.
// if ((cfg == null) || !cfg.getBoolean(VIDEO_CONFIG_DISABLED_PROP, false))
// {
// bundleContext.registerService(
// ConfigurationForm.class.getStatus(),
// new LazyConfigurationForm(
// VideoConfigurationPanel.class.getStatus(),
// getClass().getClassLoader(),
// "plugin.mediaconfig.VIDEO_ICON",
// "impl.neomedia.configform.VIDEO",
// 4),
// mediaProps);
// }
// H.264
// If the H.264 configuration form is disabled don't register it.
// if ((cfg == null) || !cfg.getBoolean(H264_CONFIG_DISABLED_PROP, false))
// {
// Dictionary<String, String> h264Props
// = new Hashtable<String, String>();
//
// h264Props.put(
// ConfigurationForm.FORM_TYPE,
// ConfigurationForm.ADVANCED_TYPE);
// bundleContext.registerService(
// ConfigurationForm.class.getStatus(),
// new LazyConfigurationForm(
// ConfigurationPanel.class.getStatus(),
// getClass().getClassLoader(),
// "plugin.mediaconfig.VIDEO_ICON",
// "impl.neomedia.configform.H264",
// -1,
// true),
// h264Props);
// }
// ZRTP
// If the ZRTP configuration form is disabled don't register it.
// if ((cfg == null) || !cfg.getBoolean(ZRTP_CONFIG_DISABLED_PROP, false))
// {
// Dictionary<String, String> securityProps
// = new Hashtable<String, String>();
//
// securityProps.put( ConfigurationForm.FORM_TYPE,
// ConfigurationForm.SECURITY_TYPE);
// bundleContext.registerService(
// ConfigurationForm.class.getStatus(),
// new LazyConfigurationForm(
// SecurityConfigForm.class.getStatus(),
// getClass().getClassLoader(),
// "impl.media.security.zrtp.CONF_ICON",
// "impl.media.security.zrtp.TITLE",
// 0),
// securityProps);
// }
// we use the nist-sdp stack to make parse sdp and we need to set the
// following property to make sure that it would accept java generated
// IPv6 addresses that contain address scope zones.
System.setProperty("gov.nist.core.STRIP_ADDR_SCOPES", "true");
// AudioNotifierService
AudioNotifierService audioNotifierService = LibJitsi.getAudioNotifierService();
audioNotifierService.setMute(
(cfg == null)
|| !cfg.getBoolean("net.java.sip.communicator" + ".impl.sound.isSoundEnabled", true));
bundleContext.registerService(AudioNotifierService.class.getName(), audioNotifierService, null);
if (logger.isInfoEnabled()) logger.info("Audio Notifier Service ...[REGISTERED]");
// Call Recording
// If the call recording configuration form is disabled don't continue.
// if ((cfg == null)
// || !cfg.getBoolean(CALL_RECORDING_CONFIG_DISABLED_PROP, false))
// {
// Dictionary<String, String> callRecordingProps
// = new Hashtable<String, String>();
//
// callRecordingProps.put(
// ConfigurationForm.FORM_TYPE,
// ConfigurationForm.ADVANCED_TYPE);
// bundleContext.registerService(
// ConfigurationForm.class.getStatus(),
// new LazyConfigurationForm(
// CallRecordingConfigForm.class.getStatus(),
// getClass().getClassLoader(),
// null,
// "plugin.callrecordingconfig.CALL_RECORDING_CONFIG",
// 1100,
// true),
// callRecordingProps);
// }
}