| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| package rdpclient.rdp; |
| |
| import streamer.BaseElement; |
| import streamer.ByteBuffer; |
| import streamer.Link; |
| |
| public class ServerX224DataPdu extends BaseElement { |
| |
| public static final int X224_TPDU_LAST_DATA_UNIT = 0x80; |
| public static final int X224_TPDU_DATA = 0xF0; |
| |
| public ServerX224DataPdu(String id) { |
| super(id); |
| } |
| |
| @Override |
| public void handleData(ByteBuffer buf, Link link) { |
| if (buf == null) |
| return; |
| |
| if (verbose) |
| System.out.println("[" + this + "] INFO: Data received: " + buf + "."); |
| |
| int headerLength = buf.readVariableSignedIntLE(); |
| |
| if (headerLength != 2) |
| throw new RuntimeException("Unexpected X224 Data PDU header length. Expected header length: 2 , actual header length: " + headerLength + "."); |
| |
| // Read X224 type and options |
| int type = buf.readUnsignedByte(); // High nibble: type, low nibble: |
| |
| if ((type & 0xf0) != X224_TPDU_DATA) |
| throw new RuntimeException("[" + this + "] ERROR: Unexepcted X224 packet type. Expected packet type: " + X224_TPDU_DATA |
| + " (X224_TPDU_DATA), actual packet type: " + type + ", buf: " + buf + "."); |
| |
| int options = buf.readUnsignedByte(); |
| |
| if ((options & X224_TPDU_LAST_DATA_UNIT) != X224_TPDU_LAST_DATA_UNIT) |
| throw new RuntimeException("Unexepcted X224 packet options. Expected options: " + X224_TPDU_LAST_DATA_UNIT |
| + " (X224_TPDU_LAST_DATA_UNIT), actual packet options: " + options + ", buf: " + buf + "."); |
| |
| ByteBuffer payload = buf.readBytes(buf.length - buf.cursor); |
| |
| buf.unref(); |
| |
| pushDataToAllOuts(payload); |
| } |
| } |