@Override
public void send(DatagramPacket packet) {
SocketAddress socketAddress = packet.getSocketAddress();
if (!peerAddressToChannel.containsKey(socketAddress)) {
logger.warn("Peer {} is not bound to a channel", socketAddress);
return;
}
Character channelNumber = peerAddressToChannel.get(socketAddress);
byte[] payload = new byte[packet.getLength()];
System.arraycopy(
packet.getData(), packet.getOffset(), payload, packet.getOffset(), payload.length);
ChannelData channelData = new ChannelData();
channelData.setData(payload);
channelData.setChannelNumber(channelNumber);
if (logger.isTraceEnabled()) {
logger.trace(
"Writing {} bytes on channel {}: {}",
packet.getLength(),
(int) channelNumber,
new String(payload, 0, payload.length, StandardCharsets.US_ASCII));
}
try {
stunStack.sendChannelData(channelData, serverAddress, localAddress);
} catch (StunException e) {
throw new RuntimeException(e);
}
}
/**
* Copies the properties of a specific <tt>DatagramPacket</tt> to another <tt>DatagramPacket</tt>.
* The property values are not cloned.
*
* @param src the <tt>DatagramPacket</tt> which is to have its properties copied to <tt>dest</tt>
* @param dest the <tt>DatagramPacket</tt> which is to have its properties set to the value of the
* respective properties of <tt>src</tt>
*/
public static void copy(DatagramPacket src, DatagramPacket dest) {
synchronized (dest) {
dest.setAddress(src.getAddress());
dest.setPort(src.getPort());
byte[] srcData = src.getData();
if (srcData == null) dest.setLength(0);
else {
byte[] destData = dest.getData();
if (destData == null) dest.setLength(0);
else {
int destOffset = dest.getOffset();
int destLength = destData.length - destOffset;
int srcLength = src.getLength();
if (destLength >= srcLength) destLength = srcLength;
else if (logger.isLoggable(Level.WARNING)) {
logger.log(Level.WARNING, "Truncating received DatagramPacket data!");
}
System.arraycopy(srcData, src.getOffset(), destData, destOffset, destLength);
dest.setLength(destLength);
}
}
}
}
public void run() throws IOException {
final byte[] buf = new byte[2 * 4096];
final DatagramPacket p = new DatagramPacket(buf, buf.length);
while (true) {
socket.receive(p);
System.out.write(p.getData(), p.getOffset(), p.getLength());
System.out.flush();
if (out != null) {
out.write(p.getData(), p.getOffset(), p.getLength());
out.flush();
}
}
}
/** Accept incoming events and processes them. */
@Override
public void run() {
while (isActive()) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
try {
final byte[] buf = new byte[maxBufferSize];
final DatagramPacket packet = new DatagramPacket(buf, buf.length);
datagramSocket.receive(packet);
final ByteArrayInputStream bais =
new ByteArrayInputStream(packet.getData(), packet.getOffset(), packet.getLength());
logEventInput.logEvents(logEventInput.wrapStream(bais), this);
} catch (final OptionalDataException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.error("OptionalDataException eof=" + e.eof + " length=" + e.length, e);
} catch (final EOFException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.info("EOF encountered");
} catch (final IOException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.error("Exception encountered on accept. Ignoring. Stack Trace :", e);
}
}
}
/** Process acknowledgments, if requested. */
@Override
public void run() {
try {
this.ackThreadRunning = true;
ackLatch.countDown();
DatagramPacket ackPack = new DatagramPacket(new byte[100], 100);
while (true) {
this.getSocket().receive(ackPack);
String id = new String(ackPack.getData(), ackPack.getOffset(), ackPack.getLength());
if (logger.isDebugEnabled()) {
logger.debug("Received ack for " + id + " from " + ackPack.getAddress().getHostAddress());
}
CountDownLatch latch = this.ackControl.get(id);
if (latch != null) {
latch.countDown();
}
}
} catch (IOException e) {
if (this.socket != null && !this.socket.isClosed()) {
logger.error("Error on UDP Acknowledge thread:" + e.getMessage());
}
} finally {
this.ackThreadRunning = false;
}
}
@Override
public void run() {
while (true) {
try {
byte[] dataBuffer = new byte[25600]; // 25kB buffer
DatagramPacket packet = new DatagramPacket(dataBuffer, dataBuffer.length);
multiplexerSocket.receive(packet);
// Check if packet is valid
int type = dataBuffer[0] >>> 4;
int version = dataBuffer[0] & 0x7;
if (version == Packet.VERSION) {
try {
Packet utpPacket = packetFactory.getFromId(type);
Stream inStream = new Stream(packet.getData(), packet.getOffset(), packet.getLength());
utpPacket.read(inStream);
UtpSocket socket = new UtpSocket(utpPacket.getConnectionId());
socket = utpSockets.find(socket);
if (socket != null) {
// log("Received " + utpPacket.getClass().getSimpleName() + " for " +
// (utpPacket.getConnectionId() & 0xFFFF));
socket.updateLastInteraction();
utpPacket.process(socket);
} else {
// log("Packet of " + packet.getLength() + " bytes (0x" +
// Integer.toHexString(dataBuffer[0]) + ") was send to a connection which was not
// established (" + packet.getAddress() + ":" + packet.getPort() + " | " +
// utpPacket.getConnectionId() + ")");
}
} catch (IllegalArgumentException e) {
log(
"Invalid Packet of "
+ packet.getLength()
+ " bytes with type "
+ type
+ " ("
+ packet.getAddress()
+ ":"
+ packet.getPort()
+ ")",
true);
}
} else {
log(
"Invalid Packet of "
+ packet.getLength()
+ " bytes with version "
+ version
+ " ("
+ packet.getAddress()
+ ":"
+ packet.getPort()
+ ")",
true);
}
} catch (IOException e) {
}
}
}
/**
* Initializes a new <tt>DatagramPacket</tt> instance which is a clone of a specific
* <tt>DatagramPacket</tt> i.e. the properties of the clone <tt>DatagramPacket</tt> are clones of
* the specified <tt>DatagramPacket</tt>.
*
* @param p the <tt>DatagramPacket</tt> to clone
* @return a new <tt>DatagramPacket</tt> instance which is a clone of the specified
* <tt>DatagramPacket</tt>
*/
public static DatagramPacket clone(DatagramPacket p) {
synchronized (p) {
byte[] pData = p.getData();
byte[] cData = (pData == null) ? null : pData.clone();
return new DatagramPacket(cData, p.getOffset(), p.getLength(), p.getAddress(), p.getPort());
}
}
private void runInReceiveChannelDataThread() {
int receiveBufferSize = 1500;
DatagramPacket packet = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);
while (connectionState.get() == ConnectionState.CONNECTED) {
try {
channelDataSocket.receive(packet);
} catch (IOException e) {
if (channelDataSocket.isClosed()) {
logger.debug("Channel data socket has been closed");
return;
} else {
throw new RuntimeException(e);
}
}
int channelDataLength = packet.getLength();
if (channelDataLength < (CHANNELDATA_CHANNELNUMBER_LENGTH + CHANNELDATA_LENGTH_LENGTH)) {
continue;
}
byte[] receivedData = packet.getData();
int channelDataOffset = packet.getOffset();
char channelNumber =
(char)
((receivedData[channelDataOffset++] << 8)
| (receivedData[channelDataOffset++] & 0xFF));
channelDataLength -= CHANNELDATA_CHANNELNUMBER_LENGTH;
char length =
(char)
((receivedData[channelDataOffset++] << 8)
| (receivedData[channelDataOffset++] & 0xFF));
channelDataLength -= CHANNELDATA_LENGTH_LENGTH;
if (length > channelDataLength) {
continue;
}
byte[] payload = new byte[length];
System.arraycopy(receivedData, channelDataOffset, payload, 0, length);
ChannelData channelData = new ChannelData();
channelData.setChannelNumber(channelNumber);
channelData.setData(payload);
try {
onChannelData(
new ChannelDataMessageEvent(
stunStack, channelToPeerAddress.get(channelNumber), localAddress, channelData));
} catch (Exception e) {
logger.warn("Error while handling channel data", e);
}
}
logger.info("Stopped reading channel data");
}
/**
* Creates a new <tt>RawPacket</tt> from a specific <tt>DatagramPacket</tt> in order to have this
* instance receive its packet data through its {@link #read(byte[], int, int)} method. Returns an
* array of <tt>RawPacket</tt> with the created packet as its first element (and <tt>null</tt> for
* the other elements).
*
* <p>Allows extenders to intercept the packet data and possibly filter and/or modify it.
*
* @param datagramPacket the <tt>DatagramPacket</tt> containing the packet data
* @return an array of <tt>RawPacket</tt> containing the <tt>RawPacket</tt> which contains the
* packet data of the specified <tt>DatagramPacket</tt> as its first element.
*/
protected RawPacket[] createRawPacket(DatagramPacket datagramPacket) {
RawPacket[] pkts = rawPacketArrayPool.poll();
if (pkts == null) pkts = new RawPacket[1];
RawPacket pkt = rawPacketPool.poll();
if (pkt == null) pkt = new RawPacket();
pkt.setBuffer(datagramPacket.getData());
pkt.setFlags(0);
pkt.setLength(datagramPacket.getLength());
pkt.setOffset(datagramPacket.getOffset());
pkts[0] = pkt;
return pkts;
}
/* extract the send and receive part in own method */
public static void sendReceive(
DatagramSocket socket, String msg, DatagramPacket sendPacket, DatagramPacket receivePacket) {
try {
socket.send(sendPacket);
socket.receive(receivePacket);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
/* Compare sent and received message */
String receivedString =
new String(receivePacket.getData(), receivePacket.getOffset(), receivePacket.getLength());
if (receivedString.compareTo(msg) == 0)
System.out.printf("%d bytes sent and received\n", receivePacket.getLength());
else System.out.printf("Sent and received msg not equal!\n");
}
private JoinMessage receive() {
try {
try {
multicastSocket.receive(datagramPacketReceive);
} catch (IOException ignore) {
return null;
}
try {
final byte[] data = datagramPacketReceive.getData();
final int offset = datagramPacketReceive.getOffset();
final BufferObjectDataInput input =
node.getSerializationService().createObjectDataInput(data);
input.position(offset);
final byte packetVersion = input.readByte();
if (packetVersion != Packet.VERSION) {
logger.warning(
"Received a JoinRequest with a different packet version! This -> "
+ Packet.VERSION
+ ", Incoming -> "
+ packetVersion
+ ", Sender -> "
+ datagramPacketReceive.getAddress());
return null;
}
try {
return input.readObject();
} finally {
input.close();
}
} catch (Exception e) {
if (e instanceof EOFException || e instanceof HazelcastSerializationException) {
logger.warning(
"Received data format is invalid."
+ " (An old version of Hazelcast may be running here.)",
e);
} else {
throw e;
}
}
} catch (Exception e) {
logger.warning(e);
}
return null;
}
private DatagramPacket copyPacket(final DatagramPacket packet) {
byte[] message = new byte[packet.getLength()];
System.arraycopy(packet.getData(), 0, message, 0, packet.getLength());
InetAddress addr = null;
try {
addr =
InetAddress.getByAddress(
packet.getAddress().getHostName(), packet.getAddress().getAddress());
DatagramPacket retPacket =
new DatagramPacket(
message, packet.getOffset(), packet.getLength(), addr, packet.getPort());
return retPacket;
} catch (UnknownHostException e) {
ThreadCategory.getInstance(getClass())
.warn("unable to clone InetAddress object for " + packet.getAddress());
}
return null;
}
public int receive(byte[] buf, int off, int len, int waitMillis) throws IOException {
synchronized (receiveQueue) {
if (receiveQueue.isEmpty()) {
try {
receiveQueue.wait(waitMillis);
} catch (InterruptedException e) {
// TODO Keep waiting until full wait expired?
}
if (receiveQueue.isEmpty()) {
return -1;
}
}
DatagramPacket packet = (DatagramPacket) receiveQueue.remove(0);
int copyLength = Math.min(len, packet.getLength());
System.arraycopy(packet.getData(), packet.getOffset(), buf, off, copyLength);
return copyLength;
}
}
/** @see java.net.DatagramSocketImpl#send(java.net.DatagramPacket) */
protected void send(DatagramPacket p) throws IOException {
final IPv4Address dstAddress = new IPv4Address(p.getAddress());
final IPv4Header ipHdr;
ipHdr =
new IPv4Header(
getTos(), getTimeToLive(), IPPROTO_UDP, dstAddress, p.getLength() + UDP_HLEN);
if (!getLocalAddress().isAnyLocalAddress() || (getDevice() != null)) {
ipHdr.setSource(new IPv4Address(getLocalAddress()));
}
final UDPHeader udpHdr;
final int srcPort = getLocalPort();
// final int srcPort = p.getPort(); // or getLocalPort???? TODO Fix
// srcPort issue
udpHdr = new UDPHeader(srcPort, p.getPort(), p.getLength());
final SocketBuffer skbuf = new SocketBuffer(p.getData(), p.getOffset(), p.getLength());
skbuf.setDevice(getDevice());
protocol.send(ipHdr, udpHdr, skbuf);
}
@Override
protected int doReadMessages(MessageBuf<Object> buf) throws Exception {
if (readSuspended) {
try {
Thread.sleep(SO_TIMEOUT);
} catch (InterruptedException e) {
// ignore;
}
return 0;
}
int packetSize = config().getReceivePacketSize();
byte[] data = new byte[packetSize];
tmpPacket.setData(data);
try {
socket.receive(tmpPacket);
InetSocketAddress remoteAddr = (InetSocketAddress) tmpPacket.getSocketAddress();
if (remoteAddr == null) {
remoteAddr = remoteAddress();
}
buf.add(
new DatagramPacket(
Unpooled.wrappedBuffer(data, tmpPacket.getOffset(), tmpPacket.getLength()),
remoteAddr));
if (readSuspended) {
return 0;
} else {
return 1;
}
} catch (SocketTimeoutException e) {
// Expected
return 0;
} catch (SocketException e) {
if (!e.getMessage().toLowerCase(Locale.US).contains("socket closed")) {
throw e;
}
return -1;
}
}
private void realRun(DatagramPacket packet) {
// Single receiving thread
boolean gotPacket = getPacket(packet);
long now = System.currentTimeMillis();
if (gotPacket) {
long startTime = System.currentTimeMillis();
Peer peer = new Peer(packet.getAddress(), packet.getPort());
tracker.receivedPacketFrom(peer);
long endTime = System.currentTimeMillis();
if (endTime - startTime > 50) {
if (endTime - startTime > 3000) {
Logger.error(this, "packet creation took " + (endTime - startTime) + "ms");
} else {
if (logMINOR) Logger.minor(this, "packet creation took " + (endTime - startTime) + "ms");
}
}
byte[] data = packet.getData();
int offset = packet.getOffset();
int length = packet.getLength();
try {
if (logMINOR) Logger.minor(this, "Processing packet of length " + length + " from " + peer);
startTime = System.currentTimeMillis();
lowLevelFilter.process(data, offset, length, peer, now);
endTime = System.currentTimeMillis();
if (endTime - startTime > 50) {
if (endTime - startTime > 3000) {
Logger.error(this, "processing packet took " + (endTime - startTime) + "ms");
} else {
if (logMINOR)
Logger.minor(this, "processing packet took " + (endTime - startTime) + "ms");
}
}
if (logMINOR) Logger.minor(this, "Successfully handled packet length " + length);
} catch (Throwable t) {
Logger.error(this, "Caught " + t + " from " + lowLevelFilter, t);
}
} else {
if (logDEBUG) Logger.debug(this, "No packet received");
}
}
public void run() {
final byte[] receive_buf = new byte[65535];
DatagramPacket packet = new DatagramPacket(receive_buf, receive_buf.length);
DataInput inp;
while (sock != null && receiver != null && Thread.currentThread().equals(receiver)) {
packet.setData(receive_buf, 0, receive_buf.length);
try {
sock.receive(packet);
inp =
new ByteArrayDataInputStream(packet.getData(), packet.getOffset(), packet.getLength());
Message msg = new Message();
msg.readFrom(inp);
up(msg);
} catch (SocketException socketEx) {
break;
} catch (Throwable ex) {
log.error(Util.getMessage("FailedReceivingPacketFrom"), packet.getSocketAddress(), ex);
}
}
if (log.isTraceEnabled()) log.trace("receiver thread terminated");
}
/**
* Determines whether a specific {@code DatagramPacket} is accepted by {@link #channelDataSocket}
* (i.e. whether {@code channelDataSocket} understands {@code packet} and {@code packet} is meant
* to be received by {@code channelDataSocket}).
*
* @param packet the {@code DatagramPacket} which is to be checked whether it is accepted by
* {@code channelDataSocket}
* @return {@code true} if {@code channelDataSocket} accepts {@code packet} (i.e. {@code
* channelDataSocket} understands {@code packet} and {@code p} is meant to be received by
* {@code channelDataSocket}); otherwise, {@code false}
*/
private boolean isChannelData(DatagramPacket packet) {
// Is it from our TURN server?
if (!serverAddress.equals(packet.getSocketAddress())) {
return false;
}
int packetLength = packet.getLength();
if (packetLength < (CHANNELDATA_CHANNELNUMBER_LENGTH + CHANNELDATA_LENGTH_LENGTH)) {
return false;
}
byte[] pData = packet.getData();
int pOffset = packet.getOffset();
/*
* The first two bits should be 0b01 because of the current channel number range 0x4000 - 0x7FFE. But 0b10 and 0b11
* which are currently reserved and may be used in the future to extend the range of channel numbers.
*/
if ((pData[pOffset] & 0xC0) == 0) {
return false;
}
pOffset += CHANNELDATA_CHANNELNUMBER_LENGTH;
packetLength -= CHANNELDATA_CHANNELNUMBER_LENGTH;
int length = ((pData[pOffset++] << 8) | (pData[pOffset] & 0xFF));
int padding = ((length % 4) > 0) ? 4 - (length % 4) : 0;
/*
* The Length field specifies the length in bytes of the Application Data field. The Length field does not include
* the padding that is sometimes present in the data of the DatagramPacket.
*/
return length == packetLength - padding - CHANNELDATA_LENGTH_LENGTH
|| length == packetLength - CHANNELDATA_LENGTH_LENGTH;
}
/**
* Log the packet.
*
* @param p packet to log
*/
@Override
protected void doLogPacket(DatagramPacket p) {
if (socket.getLocalAddress() == null) return;
// Do not log the packet if this one has been processed (and already
// logged) by the ice4j stack.
if (socket instanceof MultiplexingDatagramSocket) return;
PacketLoggingService pktLogging = getPacketLoggingService();
if (pktLogging != null) {
pktLogging.logPacket(
PacketLoggingService.ProtocolName.RTP,
p.getAddress().getAddress(),
p.getPort(),
socket.getLocalAddress().getAddress(),
socket.getLocalPort(),
PacketLoggingService.TransportName.UDP,
false,
p.getData(),
p.getOffset(),
p.getLength());
}
}
/* Event deserialization. Returns the event or null if something wrong
* happened.
*/
private void receiveFormatSend(DatagramPacket p) {
byte[] data = new byte[p.getLength()];
System.arraycopy(p.getData(), p.getOffset(), data, 0, p.getLength());
SendableEvent e = null;
Message msg = null;
try {
/* Extract event class name */
// size of class name
int sLength = ParseUtils.byteArrayToInt(data, 0);
// the class name
String className = new String(data, 4, sLength, "ISO-8859-1");
/* Create event */
Class c = Class.forName(className);
if (debugFull) {
logReader.debug(":receiveAndFormat: Reader, creating " + className + " event.");
}
e = (SendableEvent) c.newInstance();
msg = e.getMessage();
msg.setByteArray(data, 4 + sLength, data.length - (4 + sLength));
/* Extract channel hash and put event in it*/
mbuf.len = 4;
msg.pop(mbuf);
int channelHash = ParseUtils.byteArrayToInt(mbuf.data, mbuf.off);
Channel msgChannel = (Channel) parentSession.channels.get(new Integer(channelHash));
/* If channel does not exist, discard message */
if (msgChannel == null) {
if (debugFull)
logReader.debug(
this.getClass().getName()
+ ": channel does not exist. message will be discarded. "
+ "hash="
+ channelHash
+ " "
+ e);
return;
}
if (debugFull)
logReader.debug(
":receiveAndFormat: " + msgChannel.getChannelID() + " (" + channelHash + ")");
/* Extract the addresses and put them on the event */
// msg's source, futurely change udpsimple to common
InetSocketAddress addr = new InetSocketAddress(p.getAddress(), p.getPort());
e.source = addr;
// msg's destination
e.dest = dest;
// send event
e.asyncGo(msgChannel, Direction.UP);
} catch (Exception ex) {
if (logReader.isDebugEnabled()) {
ex.printStackTrace();
logReader.debug(
"Exception catched while processing message from "
+ p.getAddress().getHostName()
+ ":"
+ p.getPort()
+ ". Continued operation.");
}
}
}
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;
}
}
}
}
private void listenBroadCast() throws IOException {
skt.receive(input);
InetAddress from = input.getAddress();
String received = new String(input.getData(), input.getOffset(), input.getLength());
HttpResponse msg = null;
try {
msg = new HttpResponse(received);
} catch (IllegalArgumentException ex) {
// crappy http sent
// log.debug( "Skipping uncompliant HTTP message " + received
// );
return;
}
String header = msg.getHeader();
if (header != null
&& header.startsWith("HTTP/1.1 200 OK")
&& msg.getHTTPHeaderField("st") != null) {
// probably a search repsonse !
String deviceDescrLoc = msg.getHTTPHeaderField("location");
if (deviceDescrLoc == null || deviceDescrLoc.trim().length() == 0) {
// log.debug(
// "Skipping SSDP message, missing HTTP header 'location' field"
// );
return;
}
URL loc = new URL(deviceDescrLoc);
if (MATCH_IP) {
InetAddress locHost = InetAddress.getByName(loc.getHost());
if (!from.equals(locHost)) {
/*
* log.warn( "Discovery message sender IP " + from +
* " does not match device description IP " + locHost +
* " skipping device, set the net.sbbi.upnp.ddos.matchip system property"
* + " to false to avoid this check" );
*/
return;
}
}
String st = msg.getHTTPHeaderField("st");
if (st == null || st.trim().length() == 0) {
// log.debug(
// "Skipping SSDP message, missing HTTP header 'st' field"
// );
return;
}
String usn = msg.getHTTPHeaderField("usn");
if (usn == null || usn.trim().length() == 0) {
// log.debug(
// "Skipping SSDP message, missing HTTP header 'usn' field"
// );
return;
}
String maxAge = msg.getHTTPFieldElement("Cache-Control", "max-age");
if (maxAge == null || maxAge.trim().length() == 0) {
// log.debug(
// "Skipping SSDP message, missing HTTP header 'max-age' field"
// );
return;
}
String server = msg.getHTTPHeaderField("server");
if (server == null || server.trim().length() == 0) {
// log.debug(
// "Skipping SSDP message, missing HTTP header 'server' field"
// );
return;
}
String udn = usn;
int index = udn.indexOf("::");
if (index != -1) {
udn = udn.substring(0, index);
}
synchronized (REGISTRATION_PROCESS) {
Set<DiscoveryResultsHandler> handlers = registeredHandlers.get(st);
if (handlers != null) {
for (DiscoveryResultsHandler handler : handlers) {
handler.discoveredDevice(
input.getAddress().toString(), usn, udn, st, maxAge, loc, server);
}
}
}
} else {
// log.debug( "Skipping uncompliant HTTP message " + received
// );
}
}
@Override
public void run() {
// TODO Auto-generated method stub
while (running) {
if (isDebug) Log.i(TAG, "5s扫描设备>>>>>>>>>>>>" + Thread.currentThread());
receive = 50; // 最大接收数量
isSend = false;
String recestr = null;
try {
listDevices.clear();
sendSocket = new DatagramSocket();
sendSocket.setBroadcast(true);
sendSocket.setSoTimeout(3000);
sendSocket.send(sendPacket);
while (receive-- > 0) {
sendSocket.receive(recePacket);
recestr = new String(recedata, recePacket.getOffset(), recePacket.getLength());
if (recestr.startsWith(DISCOVERY_RESP)) {
Device device = new Device();
device.setDeviceName(recestr.substring(9));
device.setDeviceIp(recePacket.getAddress().getHostAddress());
if (listDevices.indexOf(device) < 0) {
listDevices.add(device);
if (device.getDeviceIp().equals("10.8.8.1")) {
isSend = true;
if (isDebug) Log.i(TAG, "扫描到10.8.8.1" + listDevices + "|" + Thread.currentThread());
sendResult();
break;
}
}
}
// 每次接收完UDP数据后，重置长度。否则可能会导致下次收到数据包被截断。
recePacket.setLength(default_bufferSize);
}
} catch (SocketTimeoutException e) {
if (isDebug) Log.i(TAG, "扫描3s超时" + listDevices + "|" + Thread.currentThread());
if (!isSend) {
sendResult();
}
} catch (SocketException e) {
receive = 0;
if (isDebug) Log.i(TAG, "SocketException>>>>>>" + Thread.currentThread());
if (mScanListener != null) {
mScanListener.scanException();
}
} catch (IOException e) {
receive = 0;
if (isDebug) Log.i(TAG, "SocketException>>>>>>" + Thread.currentThread());
if (mScanListener != null) {
mScanListener.scanException();
}
}
sendSocket.close();
if (wipicoVersion >= 2) {
// 版本2才进行SSID 扫描
List<ScanResult> listScanResults = WifiAdmin.getInstance(mContext).getScanResults();
if (listScanResults != null) {
for (ScanResult bean : listScanResults) {
if (DeviceUtil.isMatchSSID(DeviceUtil.ssidCorrect(bean.SSID))) {
listWifiDevices.add(
new Device(DeviceUtil.ssidCorrect(bean.SSID), bean.capabilities, null));
}
}
}
sendWifiResult();
}
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}