コード例 #1
0
 private void finishDisconnect(final Message m, final PeerNode source) {
   source.disconnected(true, true);
   // If true, remove from active routing table, likely to be down for a while.
   // Otherwise just dump all current connection state and keep trying to connect.
   boolean remove = m.getBoolean(DMT.REMOVE);
   if (remove) node.peers.disconnect(source, false, false, false);
   // If true, purge all references to this node. Otherwise, we can keep the node
   // around in secondary tables etc in order to more easily reconnect later.
   // (Mostly used on opennet)
   boolean purge = m.getBoolean(DMT.PURGE);
   if (purge) {
     OpennetManager om = node.getOpennet();
     if (om != null) om.purgeOldOpennetPeer(source);
   }
   // Process parting message
   int type = m.getInt(DMT.NODE_TO_NODE_MESSAGE_TYPE);
   ShortBuffer messageData = (ShortBuffer) m.getObject(DMT.NODE_TO_NODE_MESSAGE_DATA);
   if (messageData.getLength() == 0) return;
   node.receivedNodeToNodeMessage(source, type, messageData, true);
 }
コード例 #2
0
  public boolean handleMessage(Message m) {
    PeerNode source = (PeerNode) m.getSource();
    if (source == null) {
      // Node has been disconnected and garbage collected already! Ouch.
      return true;
    }
    if (logMINOR) Logger.minor(this, "Dispatching " + m + " from " + source);
    if (callback != null) {
      try {
        callback.snoop(m, node);
      } catch (Throwable t) {
        Logger.error(this, "Callback threw " + t, t);
      }
    }
    MessageType spec = m.getSpec();
    if (spec == DMT.FNPPing) {
      // Send an FNPPong
      Message reply = DMT.createFNPPong(m.getInt(DMT.PING_SEQNO));
      try {
        source.sendAsync(reply, null, pingCounter); // nothing we can do if can't contact source
      } catch (NotConnectedException e) {
        if (logMINOR) Logger.minor(this, "Lost connection replying to " + m);
      }
      return true;
    } else if (spec == DMT.FNPStoreSecret) {
      return node.netid.handleStoreSecret(m);
    } else if (spec == DMT.FNPSecretPing) {
      return node.netid.handleSecretPing(m);
    } else if (spec == DMT.FNPDetectedIPAddress) {
      Peer p = (Peer) m.getObject(DMT.EXTERNAL_ADDRESS);
      source.setRemoteDetectedPeer(p);
      node.ipDetector.redetectAddress();
      return true;
    } else if (spec == DMT.FNPTime) {
      return handleTime(m, source);
    } else if (spec == DMT.FNPUptime) {
      return handleUptime(m, source);
    } else if (spec == DMT.FNPSentPackets) {
      source.handleSentPackets(m);
      return true;
    } else if (spec == DMT.FNPVoid) {
      return true;
    } else if (spec == DMT.FNPDisconnect) {
      handleDisconnect(m, source);
      return true;
    } else if (spec == DMT.nodeToNodeMessage) {
      node.receivedNodeToNodeMessage(m, source);
      return true;
    } else if (spec == DMT.UOMAnnounce && source.isRealConnection()) {
      return node.nodeUpdater.uom.handleAnnounce(m, source);
    } else if (spec == DMT.UOMRequestRevocation && source.isRealConnection()) {
      return node.nodeUpdater.uom.handleRequestRevocation(m, source);
    } else if (spec == DMT.UOMSendingRevocation && source.isRealConnection()) {
      return node.nodeUpdater.uom.handleSendingRevocation(m, source);
    } else if (spec == DMT.UOMRequestMain && source.isRealConnection()) {
      return node.nodeUpdater.uom.handleRequestJar(m, source, false);
    } else if (spec == DMT.UOMRequestExtra && source.isRealConnection()) {
      return node.nodeUpdater.uom.handleRequestJar(m, source, true);
    } else if (spec == DMT.UOMSendingMain && source.isRealConnection()) {
      return node.nodeUpdater.uom.handleSendingMain(m, source);
    } else if (spec == DMT.UOMSendingExtra && source.isRealConnection()) {
      return node.nodeUpdater.uom.handleSendingExt(m, source);
    } else if (spec == DMT.FNPOpennetAnnounceRequest) {
      return handleAnnounceRequest(m, source);
    } else if (spec == DMT.FNPRoutingStatus) {
      if (source instanceof DarknetPeerNode) {
        boolean value = m.getBoolean(DMT.ROUTING_ENABLED);
        if (logMINOR)
          Logger.minor(this, "The peer (" + source + ") asked us to set routing=" + value);
        ((DarknetPeerNode) source).setRoutingStatus(value, false);
      }
      // We claim it in any case
      return true;
    } else if (source.isRealConnection() && spec == DMT.FNPLocChangeNotificationNew) {
      double newLoc = m.getDouble(DMT.LOCATION);
      ShortBuffer buffer = ((ShortBuffer) m.getObject(DMT.PEER_LOCATIONS));
      double[] locs = Fields.bytesToDoubles(buffer.getData());

      /**
       * Do *NOT* remove the sanity check below!
       *
       * @see http://archives.freenetproject.org/message/20080718.144240.359e16d3.en.html
       */
      if ((OpennetManager.MAX_PEERS_FOR_SCALING < locs.length) && (source.isOpennet())) {
        if (locs.length > OpennetManager.PANIC_MAX_PEERS) {
          // This can't happen by accident
          Logger.error(
              this,
              "We received "
                  + locs.length
                  + " locations from "
                  + source.toString()
                  + "! That should *NOT* happen! Possible attack!");
          source.forceDisconnect(true);
          return true;
        } else {
          // A few extra can happen by accident. Just use the first 20.
          Logger.normal(
              this,
              "Too many locations from "
                  + source.toString()
                  + " : "
                  + locs.length
                  + " could be an accident, using the first "
                  + OpennetManager.MAX_PEERS_FOR_SCALING);
          double[] firstLocs = new double[OpennetManager.MAX_PEERS_FOR_SCALING];
          System.arraycopy(locs, 0, firstLocs, 0, OpennetManager.MAX_PEERS_FOR_SCALING);
          locs = firstLocs;
        }
      }
      // We are on darknet and we trust our peers OR we are on opennet
      // and the amount of locations sent to us seems reasonable
      source.updateLocation(newLoc, locs);

      return true;
    }

    if (!source.isRoutable()) return false;
    if (logDEBUG) Logger.debug(this, "Not routable");

    if (spec == DMT.FNPNetworkID) {
      source.handleFNPNetworkID(m);
      return true;
    } else if (spec == DMT.FNPSwapRequest) {
      return node.lm.handleSwapRequest(m, source);
    } else if (spec == DMT.FNPSwapReply) {
      return node.lm.handleSwapReply(m, source);
    } else if (spec == DMT.FNPSwapRejected) {
      return node.lm.handleSwapRejected(m, source);
    } else if (spec == DMT.FNPSwapCommit) {
      return node.lm.handleSwapCommit(m, source);
    } else if (spec == DMT.FNPSwapComplete) {
      return node.lm.handleSwapComplete(m, source);
    } else if (spec == DMT.FNPCHKDataRequest) {
      return handleDataRequest(m, source, false);
    } else if (spec == DMT.FNPSSKDataRequest) {
      return handleDataRequest(m, source, true);
    } else if (spec == DMT.FNPInsertRequest) {
      return handleInsertRequest(m, source, false);
    } else if (spec == DMT.FNPSSKInsertRequest) {
      return handleInsertRequest(m, source, true);
    } else if (spec == DMT.FNPSSKInsertRequestNew) {
      return handleInsertRequest(m, source, true);
    } else if (spec == DMT.FNPRHProbeRequest) {
      return handleProbeRequest(m, source);
    } else if (spec == DMT.FNPRoutedPing) {
      return handleRouted(m, source);
    } else if (spec == DMT.FNPRoutedPong) {
      return handleRoutedReply(m);
    } else if (spec == DMT.FNPRoutedRejected) {
      return handleRoutedRejected(m);
      // FIXME implement threaded probe requests of various kinds.
      // Old probe request code was a major pain, never really worked.
      // We should have threaded probe requests (for simple code),
      // and one for each routing strategy.
      //		} else if(spec == DMT.FNPProbeRequest) {
      //			return handleProbeRequest(m, source);
      //		} else if(spec == DMT.FNPProbeReply) {
      //			return handleProbeReply(m, source);
      //		} else if(spec == DMT.FNPProbeRejected) {
      //			return handleProbeRejected(m, source);
      //		} else if(spec == DMT.FNPProbeTrace) {
      //			return handleProbeTrace(m, source);
    } else if (spec == DMT.FNPOfferKey) {
      return handleOfferKey(m, source);
    } else if (spec == DMT.FNPGetOfferedKey) {
      return handleGetOfferedKey(m, source);
    }
    return false;
  }