Esempio n. 1
0
 public void run() {
   while (true) {
     LinkedList<PacketCallbackStruct> list = null;
     try {
       queuedPacketCallbacksLock.lock();
       try {
         queuedPacketCallbacksNotEmpty.await();
       } catch (Exception e) {
         Log.error(
             "RDPServer.PacketCallbackThread: queuedPacketCallbacksNotEmpty.await() caught exception "
                 + e.getMessage());
       }
       list = queuedPacketCallbacks;
       queuedPacketCallbacks = new LinkedList<PacketCallbackStruct>();
     } finally {
       queuedPacketCallbacksLock.unlock();
     }
     if (Log.loggingNet)
       Log.net("RDPServer.PacketCallbackThread: Got " + list.size() + " queued packets");
     for (PacketCallbackStruct pcs : list) {
       try {
         callbackProcessPacket(pcs.cb, pcs.con, pcs.packet);
       } catch (Exception e) {
         Log.exception("RDPServer.PacketCallbackThread: ", e);
       }
     }
   }
 }
  private void updateClearspaceSharedSecret(String newSecret) {

    try {
      String path = IM_URL_PREFIX + "updateSharedSecret/";

      // Creates the XML with the data
      Document groupDoc = DocumentHelper.createDocument();
      Element rootE = groupDoc.addElement("updateSharedSecret");
      rootE.addElement("newSecret").setText(newSecret);

      executeRequest(POST, path, groupDoc.asXML());
    } catch (UnauthorizedException ue) {
      Log.error("Error updating the password of Clearspace", ue);
    } catch (Exception e) {
      Log.error("Error updating the password of Clearspace", e);
    }
  }
  private void updateClearspaceClientSettings() {
    String xmppBoshSslPort = "0";
    String xmppBoshPort = "0";
    String xmppPort =
        String.valueOf(XMPPServer.getInstance().getConnectionManager().getClientListenerPort());
    if (JiveGlobals.getBooleanProperty(
        HttpBindManager.HTTP_BIND_ENABLED, HttpBindManager.HTTP_BIND_ENABLED_DEFAULT)) {
      int boshSslPort = HttpBindManager.getInstance().getHttpBindSecurePort();
      int boshPort = HttpBindManager.getInstance().getHttpBindUnsecurePort();
      try {
        if (HttpBindManager.getInstance().isHttpsBindActive()
            && LocalClientSession.getTLSPolicy()
                != org.jivesoftware.openfire.Connection.TLSPolicy.disabled) {
          xmppBoshSslPort = String.valueOf(boshSslPort);
        }
      } catch (Exception e) {
        // Exception while working with certificate
        Log.debug(
            "Error while checking SSL certificate.  Instructing Clearspace not to use SSL port.");
      }
      if (HttpBindManager.getInstance().isHttpBindActive() && boshPort > 0) {
        xmppBoshPort = String.valueOf(boshPort);
      }
    }

    try {
      String path = CHAT_URL_PREFIX + "updateClientSettings/";

      // Creates the XML with the data
      Document groupDoc = DocumentHelper.createDocument();
      Element rootE = groupDoc.addElement("updateClientSettings");
      rootE.addElement("boshSslPort").setText(xmppBoshSslPort);
      rootE.addElement("boshPort").setText(xmppBoshPort);
      rootE.addElement("tcpPort").setText(xmppPort);

      executeRequest(POST, path, groupDoc.asXML());
    } catch (UnauthorizedException ue) {
      Log.error("Error updating the client settings of Clearspace", ue);
    } catch (Exception e) {
      Log.error("Error updating the client settings of Clearspace", e);
    }
  }
Esempio n. 4
0
  //
  // The main work loop
  //
  public void run() {

    //
    // Poll the Namenode (once every 5 minutes) to find the size of the
    // pending edit log.
    //
    long period = 5 * 60; // 5 minutes
    long lastCheckpointTime = 0;
    if (checkpointPeriod < period) {
      period = checkpointPeriod;
    }

    while (shouldRun) {
      try {
        Thread.sleep(1000 * period);
      } catch (InterruptedException ie) {
        // do nothing
      }
      if (!shouldRun) {
        break;
      }
      try {
        long now = System.currentTimeMillis();

        long size = namenode.getEditLogSize();
        if (size >= checkpointSize || now >= lastCheckpointTime + 1000 * checkpointPeriod) {
          doCheckpoint();
          lastCheckpointTime = now;
        }
      } catch (IOException e) {
        LOG.error("Exception in doCheckpoint: ");
        LOG.error(StringUtils.stringifyException(e));
        e.printStackTrace();
        checkpointImage.imageDigest = null;
      } catch (Throwable e) {
        LOG.error("Throwable Exception in doCheckpoint: ");
        LOG.error(StringUtils.stringifyException(e));
        e.printStackTrace();
        Runtime.getRuntime().exit(-1);
      }
    }
  }
Esempio n. 5
0
 /**
  * a DatagramChannel has data ready - process all the pending packets, whether its for a
  * rdpserversocket or rdpconnection.
  */
 void processActiveChannel(DatagramChannel dc) throws ClosedChannelException {
   RDPPacket packet;
   int count = 0;
   // read in the packet
   try {
     Set<RDPConnection> needsAckConnections = new HashSet<RDPConnection>();
     while ((packet = RDPServer.receivePacket(dc)) != null) {
       if (Log.loggingNet)
         Log.net(
             "RDPServer.processActiveChannel: Starting iteration with count of "
                 + count
                 + " packets");
       // see if there is a connection already for this packet
       InetAddress remoteAddr = packet.getInetAddress();
       int remotePort = packet.getPort();
       int localPort = dc.socket().getLocalPort();
       ConnectionInfo conInfo = new ConnectionInfo(remoteAddr, remotePort, localPort);
       RDPConnection con = RDPServer.getConnection(dc, conInfo);
       if (con != null) {
         if (Log.loggingNet)
           Log.net("RDPServer.processActiveChannel: found an existing connection: " + con);
         count++;
         if (processExistingConnection(con, packet)) needsAckConnections.add(con);
         // Prevent this from blocking getActiveChannels by
         // putting an upper bound on the number of packets
         // processed
         if (count >= 20) break;
         continue;
       } else {
         Log.net("RDPServer.processActiveChannel: did not find an existing connection");
       }
       // there is no connection,
       // see if there is a socket listening for new connection
       RDPServerSocket rdpSocket = RDPServer.getRDPSocket(dc);
       if (rdpSocket != null) {
         count++;
         processNewConnection(rdpSocket, packet);
         return;
       }
       return;
     }
     // Finally, send out the acks
     for (RDPConnection con : needsAckConnections) {
       RDPPacket replyPacket = new RDPPacket(con);
       con.sendPacketImmediate(replyPacket, false);
     }
   } catch (ClosedChannelException ex) {
     Log.error("RDPServer.processActiveChannel: ClosedChannel " + dc.socket());
     throw ex;
   } finally {
     if (Log.loggingNet)
       Log.net("RDPServer.processActiveChannel: Returning after processing " + count + " packets");
   }
 }
  /**
   * Returns a nonce generated by Clearspace to be used in a SSO login.
   *
   * @return a unique nonce.
   */
  public String getNonce() {
    try {
      String path = IM_URL_PREFIX + "generateNonce";
      Element element = executeRequest(GET, path);

      return WSUtils.getReturn(element);
    } catch (Exception e) {
      Log.error("Failed executing #generateNonce with Clearspace", e);
    }

    return null;
  }
Esempio n. 7
0
  /** make sure the packet as the remote address and remote port set */
  static void sendPacket(DatagramChannel dc, RDPPacket packet) {

    sendMeter.add();

    // allocate a buffer
    int bufSize = 100 + (packet.numEacks() * 4);
    if (packet.getData() != null) {
      bufSize += packet.getData().length;
      sendDataMeter.add();
    }
    MVByteBuffer buf = new MVByteBuffer(bufSize);
    packet.toByteBuffer(buf); // function flips the buffer

    int remotePort = packet.getPort();
    InetAddress remoteAddr = packet.getInetAddress();

    if ((remotePort < 0) || (remoteAddr == null)) {
      throw new MVRuntimeException("RDPServer.sendPacket: remotePort or addr is null");
    }

    try {
      int bytes = dc.send(buf.getNioBuf(), new InetSocketAddress(remoteAddr, remotePort));
      if (bytes == 0) {
        Log.error("RDPServer.sendPacket: could not send packet, size=" + bufSize);
      }

      if (Log.loggingNet)
        Log.net(
            "RDPServer.sendPacket: remoteAddr="
                + remoteAddr
                + ", remotePort="
                + remotePort
                + ", numbytes sent="
                + bytes);
    } catch (java.io.IOException e) {
      Log.exception(
          "RDPServer.sendPacket: remoteAddr="
              + remoteAddr
              + ", remotePort="
              + remotePort
              + ", got exception",
          e);
      throw new MVRuntimeException("RDPServer.sendPacket", e);
    }
  }
  static {
    try {
      factory = XmlPullParserFactory.newInstance(MXParser.class.getName(), null);
      factory.setNamespaceAware(true);
    } catch (XmlPullParserException e) {
      Log.error("Error creating a parser factory", e);
    }
    // Create xmpp parser to keep in each thread
    localParser =
        new ThreadLocal<XMPPPacketReader>() {
          protected XMPPPacketReader initialValue() {
            XMPPPacketReader parser = new XMPPPacketReader();
            factory.setNamespaceAware(true);
            parser.setXPPFactory(factory);
            return parser;
          }
        };

    // Add a new exception map from CS to OF and it will be automatically translated.
    exceptionMap = new HashMap<String, String>();
    exceptionMap.put(
        "com.jivesoftware.base.UserNotFoundException",
        "org.jivesoftware.openfire.user.UserNotFoundException");
    exceptionMap.put(
        "com.jivesoftware.base.UserAlreadyExistsException",
        "org.jivesoftware.openfire.user.UserAlreadyExistsException");
    exceptionMap.put(
        "com.jivesoftware.base.GroupNotFoundException",
        "org.jivesoftware.openfire.group.GroupNotFoundException");
    exceptionMap.put(
        "com.jivesoftware.base.GroupAlreadyExistsException",
        "org.jivesoftware.openfire.group.GroupAlreadyExistsException");
    exceptionMap.put(
        "org.acegisecurity.BadCredentialsException",
        "org.jivesoftware.openfire.auth.UnauthorizedException");
    exceptionMap.put(
        "com.jivesoftware.base.UnauthorizedException",
        "org.jivesoftware.openfire.auth.UnauthorizedException");
    exceptionMap.put(
        "com.jivesoftware.community.NotFoundException", "org.jivesoftware.util.NotFoundException");
  }
Esempio n. 9
0
 static void callbackProcessPacket(
     ClientConnection.MessageCallback pcb, ClientConnection clientCon, RDPPacket packet) {
   if (packet.isNul()) {
     return;
   }
   byte[] data = packet.getData();
   MVByteBuffer buf = new MVByteBuffer(data);
   RDPConnection con = (RDPConnection) clientCon;
   // If this is a multiple-message message . . .
   if (buf.getLong() == -1 && buf.getInt() == RDPConnection.aggregatedMsgId) {
     con.aggregatedReceives++;
     PacketAggregator.allAggregatedReceives++;
     // Get the count of sub buffers
     int size = buf.getInt();
     con.receivedMessagesAggregated += size;
     PacketAggregator.allReceivedMessagesAggregated += size;
     if (Log.loggingNet)
       Log.net(
           "RDPServer.callbackProcessPacket: processing aggregated message with "
               + size
               + " submessages");
     MVByteBuffer subBuf = null;
     for (int i = 0; i < size; i++) {
       try {
         subBuf = buf.getByteBuffer();
       } catch (Exception e) {
         Log.error("In CallbackThread, error getting aggregated subbuffer: " + e.getMessage());
       }
       if (subBuf != null) pcb.processPacket(con, subBuf);
     }
   } else {
     con.unaggregatedReceives++;
     PacketAggregator.allUnaggregatedReceives++;
     buf.rewind();
     pcb.processPacket(con, buf);
   }
 }
Esempio n. 10
0
  /**
   * Service.
   *
   * @param o the o
   * @param session the session
   */
  void service(IoBuffer o, IoSession session) {
    try {
      // System.out.println(o.remaining() + "/" + o.capacity());

      session.setAttribute("last", System.currentTimeMillis());

      SimpleIoBuffer in = (SimpleIoBuffer) session.getAttribute("buf");
      if (in == null) {
        in = SimpleIoBuffer.create(4096);
        session.setAttribute("buf", in);
      }
      byte[] data = new byte[o.remaining()];
      o.get(data);
      in.append(data);

      // log.debug("recv: " + data.length + ", " +
      // session.getRemoteAddress());

      while (in.length() > 5) {
        in.mark();
        /**
         * Byte 1: head of the package<br>
         * bit 7-6: "01", indicator of MDC<br>
         * bit 5: encrypt indicator, "0": no; "1": encrypted<br>
         * bit 4: zip indicator, "0": no, "1": ziped<br>
         * bit 0-3: reserved<br>
         * Byte 2-5: length of data<br>
         * Byte[…]: data array<br>
         */
        byte head = in.read();
        /** test the head indicator, if not correct close it */
        if ((head & 0xC0) != 0x40) {
          log.info("flag is not correct! flag:" + head + ",from: " + session.getRemoteAddress());

          session.write("error.head");
          session.close(true);
          return;
        }

        int len = in.getInt();

        if (len <= 0 || len > MAX_SIZE) {
          log.error(
              "mdcserver.Wrong lendth: "
                  + len
                  + "/"
                  + MAX_SIZE
                  + " - "
                  + session.getRemoteAddress());
          session.write("error.packet.size");
          session.close(true);
          break;
        }

        // log.info("packet.len:" + len + ", len in buffer:" +
        // in.length());
        if (in.length() < len) {
          in.reset();
          break;
        } else {
          // do it

          byte[] b = new byte[len];
          in.read(b);

          // log.info("stub.package.size: " + len + ", head:" + head +
          // ", cmd:" + Bean.toString(b));
          // log.info("stub.package.size: " + len + ", head:" + head);

          /** test the zip flag */
          if ((head & 0x10) != 0) {
            b = Zip.unzip(b);
          }

          final TConn d = (TConn) session.getAttribute("conn");
          if (d != null) {
            /** test the encrypted flag */
            if ((head & 0x20) != 0) {
              b = DES.decode(b, d.deskey);
            }

            final byte[] bb = b;

            /** test if the packet is for mdc or app */
            new WorkerTask() {

              @Override
              public void onExecute() {
                d.process(bb);
              }
            }.schedule(0);

            session.setAttribute("last", System.currentTimeMillis());
          } else {
            session.write("error.getconnection");

            log.error("error to get connection: " + session.getRemoteAddress());
            session.close(true);
          }
        }
      }
    } catch (Throwable e) {
      log.error("closing stub: " + session.getRemoteAddress(), e);
      session.write("exception." + e.getMessage());
      session.close(true);
    }
  }
  public void start() throws IllegalStateException {
    super.start();
    if (isEnabled()) {
      // Before starting up service make sure there is a default secret
      if (ExternalComponentManager.getDefaultSecret() == null
          || "".equals(ExternalComponentManager.getDefaultSecret())) {
        try {
          ExternalComponentManager.setDefaultSecret(StringUtils.randomString(10));
        } catch (ModificationNotAllowedException e) {
          Log.warn("Failed to set a default secret to external component service", e);
        }
      }
      // Make sure that external component service is enabled
      if (!ExternalComponentManager.isServiceEnabled()) {
        try {
          ExternalComponentManager.setServiceEnabled(true);
        } catch (ModificationNotAllowedException e) {
          Log.warn("Failed to start external component service", e);
        }
      }
      // Listen for changes to external component settings
      ExternalComponentManager.addListener(this);
      // Listen for registration of new components
      InternalComponentManager.getInstance().addListener(this);
      // Listen for changes in certificates
      CertificateManager.addListener(this);
      // Listen for property changes
      PropertyEventDispatcher.addListener(this);
      // Set up custom clearspace MUC service
      // Create service if it doesn't exist, load if it does.
      MultiUserChatServiceImpl muc =
          (MultiUserChatServiceImpl)
              XMPPServer.getInstance()
                  .getMultiUserChatManager()
                  .getMultiUserChatService(MUC_SUBDOMAIN);
      if (muc == null) {
        try {
          muc =
              XMPPServer.getInstance()
                  .getMultiUserChatManager()
                  .createMultiUserChatService(MUC_SUBDOMAIN, MUC_DESCRIPTION, true);
        } catch (AlreadyExistsException e) {
          Log.error(
              "ClearspaceManager: Found no "
                  + MUC_SUBDOMAIN
                  + " service, but got already exists when creation attempted?  Service probably not started!");
        }
      }
      if (muc != null) {
        // Set up special delegate for Clearspace MUC service
        muc.setMUCDelegate(new ClearspaceMUCEventDelegate());
        // Set up additional features for Clearspace MUC service
        muc.addExtraFeature("clearspace:service");
        // Set up additional identity of conference service to Clearspace MUC service
        muc.addExtraIdentity("conference", "Clearspace Chat Service", "text");
      }

      // Starts the clearspace configuration task
      startClearspaceConfig();

      // Starts the Clearspace MUC transcript manager
      mucTranscriptManager.start();
    }
  }
Esempio n. 12
0
  /**
   * we have a packet that belongs to the passed in connection. process the packet for the
   * connection. It returns true if the connection is open and the packet was a data packet
   */
  boolean processExistingConnection(RDPConnection con, RDPPacket packet) {

    if (Log.loggingNet)
      Log.net("RDPServer.processExistingConnection: con state=" + con + ", packet=" + packet);
    packetCounter.add();

    int state = con.getState();
    if (state == RDPConnection.LISTEN) {
      // something is wrong, we shouldn't be here
      // we get to this method after looking in the connections map
      // but all LISTEN connections should be listed direct
      // from serversockets
      Log.error("RDPServer.processExistingConnection: connection shouldnt be in LISTEN state");
      return false;
    }
    if (state == RDPConnection.SYN_SENT) {
      if (!packet.isAck()) {
        Log.warn("got a non-ack packet when we're in SYN_SENT");
        return false;
      }
      if (!packet.isSyn()) {
        Log.warn("got a non-syn packet when we're in SYN_SENT");
        return false;
      }
      if (Log.loggingNet) Log.net("good: got syn-ack packet in syn_sent");

      // make sure its acking our initial segment #
      if (packet.getAckNum() != con.getInitialSendSeqNum()) {
        if (Log.loggingNet) Log.net("syn's ack number does not match initial seq #");
        return false;
      }

      con.setRcvCur(packet.getSeqNum());
      con.setRcvIrs(packet.getSeqNum());
      con.setMaxSendUnacks(packet.getSendUnacks());
      con.setMaxReceiveSegmentSize(packet.getMaxRcvSegmentSize());
      con.setSendUnackd(packet.getAckNum() + 1);

      // ack first before setting state to open
      // otherwise some other thread will get woken up and send data
      // before we send the ack
      if (Log.loggingNet) Log.net("new connection state: " + con);
      RDPPacket replyPacket = new RDPPacket(con);
      con.sendPacketImmediate(replyPacket, false);
      con.setState(RDPConnection.OPEN);
      return false;
    }
    if (state == RDPConnection.SYN_RCVD) {
      if (packet.getSeqNum() <= con.getRcvIrs()) {
        Log.error("seqnum is not above rcv initial seq num");
        return false;
      }
      if (packet.getSeqNum() > (con.getRcvCur() + (con.getRcvMax() * 2))) {
        Log.error("seqnum is too big");
        return false;
      }
      if (packet.isAck()) {
        if (packet.getAckNum() == con.getInitialSendSeqNum()) {
          if (Log.loggingNet) Log.net("got ack for our syn - setting state to open");
          con.setState(RDPConnection.OPEN); // this will notify()

          // call the accept callback
          // first find the serversocket
          DatagramChannel dc = con.getDatagramChannel();
          if (dc == null) {
            throw new MVRuntimeException(
                "RDPServer.processExistingConnection: no datagramchannel for connection that just turned OPEN");
          }
          RDPServerSocket rdpSocket = RDPServer.getRDPSocket(dc);
          if (rdpSocket == null) {
            throw new MVRuntimeException(
                "RDPServer.processExistingConnection: no socket for connection that just turned OPEN");
          }
          ClientConnection.AcceptCallback acceptCB = rdpSocket.getAcceptCallback();
          if (acceptCB != null) {
            acceptCB.acceptConnection(con);
          } else {
            Log.warn("serversocket has no accept callback");
          }
          if (Log.loggingNet)
            Log.net(
                "RDPServer.processExistingConnection: got ACK, removing from unack list: "
                    + packet.getSeqNum());
          con.removeUnackPacket(packet.getSeqNum());
        }
      }
    }
    if (state == RDPConnection.CLOSE_WAIT) {
      // reply with a reset on all packets
      if (!packet.isRst()) {
        RDPPacket rstPacket = RDPPacket.makeRstPacket();
        con.sendPacketImmediate(rstPacket, false);
      }
    }
    if (state == RDPConnection.OPEN) {
      if (packet.isRst()) {
        // the other side wants to close the connection
        // set the state,
        // dont call con.close() since that will send a reset packet
        if (Log.loggingDebug)
          Log.debug("RDPServer.processExistingConnection: got reset packet for con " + con);
        if (con.getState() != RDPConnection.CLOSE_WAIT) {
          con.setState(RDPConnection.CLOSE_WAIT);
          con.setCloseWaitTimer();
          // Only invoke callback when moving into CLOSE_WAIT
          // state.  This prevents two calls to connectionReset.
          Log.net("RDPServer.processExistingConnection: calling reset callback");
          ClientConnection.MessageCallback pcb = con.getCallback();
          pcb.connectionReset(con);
        }

        return false;
      }
      if (packet.isSyn()) {
        // this will close the connection (put into CLOSE_WAIT)
        // send a reset packet and call the connectionReset callback
        Log.error(
            "RDPServer.processExistingConnection: closing connection because we got a syn packet, con="
                + con);
        con.close();
        return false;
      }

      // TODO: shouldnt it be ok for it to have same seq num?
      // if it is a 0 data packet?
      long rcvCur = con.getRcvCur();
      if (packet.getSeqNum() <= rcvCur) {
        if (Log.loggingNet)
          Log.net("RDPServer.processExistingConnection: seqnum too small - acking/not process");
        if (packet.getData() != null) {
          if (Log.loggingNet)
            Log.net(
                "RDPServer.processExistingConnection: sending ack even though seqnum out of range");
          RDPPacket replyPacket = new RDPPacket(con);
          con.sendPacketImmediate(replyPacket, false);
        }
        return false;
      }
      if (packet.getSeqNum() > (rcvCur + (con.getRcvMax() * 2))) {
        Log.error("RDPServer.processExistingConnection: seqnum too big - discarding");
        return false;
      }
      if (packet.isAck()) {
        if (Log.loggingNet)
          Log.net("RDPServer.processExistingConnection: processing ack " + packet.getAckNum());
        // lock for race condition (read then set)
        con.getLock().lock();
        try {
          if (packet.getAckNum() >= con.getSendNextSeqNum()) {
            // acking something we didnt even send yet
            Log.error(
                "RDPServer.processExistingConnection: discarding -- got ack #"
                    + packet.getAckNum()
                    + ", but our next send seqnum is "
                    + con.getSendNextSeqNum()
                    + " -- "
                    + con);
            return false;
          }
          if (con.getSendUnackd() <= packet.getAckNum()) {
            con.setSendUnackd(packet.getAckNum() + 1);
            if (Log.loggingNet)
              Log.net(
                  "RDPServer.processExistingConnection: updated send_unackd num to "
                      + con.getSendUnackd()
                      + " (one greater than packet ack) - "
                      + con);
            con.removeUnackPacketUpTo(packet.getAckNum());
          }
          if (packet.isEak()) {
            List eackList = packet.getEackList();
            Iterator iter = eackList.iterator();
            while (iter.hasNext()) {
              Long seqNum = (Long) iter.next();
              if (Log.loggingNet)
                Log.net("RDPServer.processExistingConnection: got EACK: " + seqNum);
              con.removeUnackPacket(seqNum.longValue());
            }
          }
        } finally {
          con.getLock().unlock();
          if (Log.loggingNet)
            Log.net("RDPServer.processExistingConnection: processed ack " + packet.getAckNum());
        }
      }
      // process the data
      byte[] data = packet.getData();
      if ((data != null) || packet.isNul()) {
        dataCounter.add();

        // lock - since racecondition: we read then set
        con.getLock().lock();
        try {
          rcvCur = con.getRcvCur(); // update rcvCur
          if (Log.loggingNet) Log.net("RDPServer.processExistingConnection: rcvcur is " + rcvCur);

          ClientConnection.MessageCallback pcb = con.getCallback();
          if (pcb == null) {
            Log.warn("RDPServer.processExistingConnection: no packet callback registered");
          }

          // call callback only if we havent seen it already - eackd
          if (!con.hasEack(packet.getSeqNum())) {
            if (con.isSequenced()) {
              // this is a sequential connection,
              // make sure this is the 'next' packet
              // is this the next sequential packet
              if (packet.getSeqNum() == (rcvCur + 1)) {
                // this is the next packet
                if (Log.loggingNet)
                  Log.net(
                      "RDPServer.processExistingConnection: conn is sequenced and received next packet, rcvCur="
                          + rcvCur
                          + ", packet="
                          + packet);
                if ((pcb != null) && (data != null)) {
                  queueForCallbackProcessing(pcb, con, packet);
                }
              } else {
                // not the next packet, place it in queue
                if (Log.loggingNet)
                  Log.net(
                      "RDPServer.processExistingConnection: conn is sequenced, BUT PACKET is OUT OF ORDER: rcvcur="
                          + rcvCur
                          + ", packet="
                          + packet);
                con.addSequencePacket(packet);
              }
            } else {
              if ((pcb != null) && (data != null)) {
                // make sure we havent already processed packet
                queueForCallbackProcessing(pcb, con, packet);
              }
            }
          } else {
            if (Log.loggingNet) Log.net(con.toString() + " already seen this packet");
          }

          // is this the next sequential packet
          if (packet.getSeqNum() == (rcvCur + 1)) {
            con.setRcvCur(rcvCur + 1);
            if (Log.loggingNet)
              Log.net(
                  "RDPServer.processExistingConnection RCVD: incremented last sequenced rcvd: "
                      + (rcvCur + 1));

            // packet in order - dont add to eack
            // Take any additional sequential packets off eack
            long seqNum = rcvCur + 2;
            while (con.removeEack(seqNum)) {
              if (Log.loggingNet)
                Log.net("RDPServer.processExistingConnection: removing/collapsing eack: " + seqNum);
              con.setRcvCur(seqNum++);
            }

            if (con.isSequenced()) {
              rcvCur++; // since we just process the last one
              Log.net(
                  "RDPServer.processExistingConnection: connection is sequenced, processing collapsed packets.");
              // send any saved sequential packets also
              Iterator iter = con.getSequencePackets().iterator();
              while (iter.hasNext()) {
                RDPPacket p = (RDPPacket) iter.next();
                if (Log.loggingNet)
                  Log.net(
                      "rdpserver: stored packet seqnum="
                          + p.getSeqNum()
                          + ", if equal to (rcvcur + 1)="
                          + (rcvCur + 1));
                if (p.getSeqNum() == (rcvCur + 1)) {
                  Log.net(
                      "RDPServer.processExistingConnection: this is the next packet, processing");
                  // this is the next packet - update rcvcur
                  rcvCur++;

                  // process this packet
                  Log.net(
                      "RDPServer.processExistingConnection: processing stored sequential packet "
                          + p);
                  byte[] storedData = p.getData();
                  if (pcb != null && storedData != null) {
                    queueForCallbackProcessing(pcb, con, packet);
                  }
                  iter.remove();
                }
              }
            } else {
              if (Log.loggingNet)
                Log.net("RDPServer.processExistingConnection: connection is not sequenced");
            }
          } else {
            if (Log.loggingNet)
              Log.net(
                  "RDPServer.processExistingConnection: RCVD OUT OF ORDER: packet seq#: "
                      + packet.getSeqNum()
                      + ", but last sequential rcvd packet was: "
                      + con.getRcvCur()
                      + " -- not incrementing counter");
            if (packet.getSeqNum() > rcvCur) {
              // must be at least + 2 larger than rcvCur
              if (Log.loggingNet) Log.net("adding to eack list " + packet);
              con.addEack(packet);
            }
          }
        } finally {
          con.getLock().unlock();
        }
        return true;
      }
    }
    return false;
  }
Esempio n. 13
0
  /** returns a list of rdpserversockets */
  Set<DatagramChannel> getActiveChannels() throws InterruptedException, java.io.IOException {
    lock.lock();
    try {
      while (channelMap.isEmpty()) {
        channelMapNotEmpty.await();
      }
    } finally {
      lock.unlock();
    }

    Set<SelectionKey> readyKeys = null;
    do {
      lock.lock();
      try {
        if (!newChannelSet.isEmpty()) {
          if (Log.loggingNet) Log.net("RDPServer.getActiveChannels: newChannelSet is not null");
          Iterator<DatagramChannel> iter = newChannelSet.iterator();
          while (iter.hasNext()) {
            DatagramChannel newDC = iter.next();
            iter.remove();
            newDC.register(selector, SelectionKey.OP_READ);
          }
        }
      } finally {
        lock.unlock();
      }
      int numReady = selector.select(); // this is a blocking call - thread safe
      selectCalls++;
      if (numReady == 0) {
        if (Log.loggingNet) Log.net("RDPServer.getActiveChannels: selector returned 0");
        continue;
      }
      readyKeys = selector.selectedKeys();
      if (Log.loggingNet)
        Log.net(
            "RDPServer.getActiveChannels: called select - # of ready keys = "
                + readyKeys.size()
                + " == "
                + numReady);
    } while (readyKeys == null || readyKeys.isEmpty());

    lock.lock();
    try {
      // get a datagramchannel that is ready
      Set<DatagramChannel> activeChannels = new HashSet<DatagramChannel>();

      Iterator<SelectionKey> iter = readyKeys.iterator();
      while (iter.hasNext()) {
        SelectionKey key = iter.next();
        if (Log.loggingNet)
          Log.net(
              "RDPServer.getActiveChannels: matched selectionkey: "
                  + key
                  + ", isAcceptable="
                  + key.isAcceptable()
                  + ", isReadable="
                  + key.isReadable()
                  + ", isValid="
                  + key.isValid()
                  + ", isWritable="
                  + key.isWritable());
        iter.remove(); // remove from the selected key list

        if (!key.isReadable() || !key.isValid()) {
          Log.error(
              "RDPServer.getActiveChannels: Throwing exception: RDPServer: not readable or invalid");
          throw new MVRuntimeException("RDPServer: not readable or invalid");
        }

        DatagramChannel dc = (DatagramChannel) key.channel();
        activeChannels.add(dc);
      }
      if (Log.loggingNet)
        Log.net(
            "RDPServer.getActiveChannels: returning " + activeChannels.size() + " active channels");
      return activeChannels;
    } finally {
      lock.unlock();
    }
  }
Esempio n. 14
0
  /**
   * @param argv The parameters passed to this program.
   * @exception Exception if the filesystem does not exist.
   * @return 0 on success, non zero on error.
   */
  private int processArgs(String[] argv) throws Exception {

    if (argv.length < 1) {
      printUsage("");
      return -1;
    }

    int exitCode = -1;
    int i = 0;
    String cmd = argv[i++];

    //
    // verify that we have enough command line parameters
    //
    if ("-geteditsize".equals(cmd)) {
      if (argv.length != 1) {
        printUsage(cmd);
        return exitCode;
      }
    } else if ("-checkpoint".equals(cmd)) {
      if (argv.length != 1 && argv.length != 2) {
        printUsage(cmd);
        return exitCode;
      }
      if (argv.length == 2 && !"force".equals(argv[i])) {
        printUsage(cmd);
        return exitCode;
      }
    }

    exitCode = 0;
    try {
      if ("-checkpoint".equals(cmd)) {
        long size = namenode.getEditLogSize();
        if (size >= checkpointSize || argv.length == 2 && "force".equals(argv[i])) {
          doCheckpoint();
        } else {
          System.err.println(
              "EditLog size "
                  + size
                  + " bytes is "
                  + "smaller than configured checkpoint "
                  + "size "
                  + checkpointSize
                  + " bytes.");
          System.err.println("Skipping checkpoint.");
        }
      } else if ("-geteditsize".equals(cmd)) {
        long size = namenode.getEditLogSize();
        System.out.println("EditLog size is " + size + " bytes");
      } else {
        exitCode = -1;
        LOG.error(cmd.substring(1) + ": Unknown command");
        printUsage("");
      }
    } catch (RemoteException e) {
      //
      // This is a error returned by hadoop server. Print
      // out the first line of the error mesage, ignore the stack trace.
      exitCode = -1;
      try {
        String[] content;
        content = e.getLocalizedMessage().split("\n");
        LOG.error(cmd.substring(1) + ": " + content[0]);
      } catch (Exception ex) {
        LOG.error(cmd.substring(1) + ": " + ex.getLocalizedMessage());
      }
    } catch (IOException e) {
      //
      // IO exception encountered locally.
      //
      exitCode = -1;
      LOG.error(cmd.substring(1) + ": " + e.getLocalizedMessage());
    } finally {
      // Does the RPC connection need to be closed?
    }
    return exitCode;
  }