162 lines
4.8 KiB
Java
162 lines
4.8 KiB
Java
/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
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/*
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Copyright (c) 2002-2012 ymnk, JCraft,Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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3. The names of the authors may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
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INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.jcraft.jsch;
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import java.io.*;
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public class ChannelDirectTCPIP extends Channel{
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static private final int LOCAL_WINDOW_SIZE_MAX=0x20000;
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static private final int LOCAL_MAXIMUM_PACKET_SIZE=0x4000;
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static private final byte[] _type = Util.str2byte("direct-tcpip");
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String host;
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int port;
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String originator_IP_address="127.0.0.1";
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int originator_port=0;
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ChannelDirectTCPIP(){
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super();
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type = _type;
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setLocalWindowSizeMax(LOCAL_WINDOW_SIZE_MAX);
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setLocalWindowSize(LOCAL_WINDOW_SIZE_MAX);
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setLocalPacketSize(LOCAL_MAXIMUM_PACKET_SIZE);
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}
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void init (){
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io=new IO();
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}
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public void connect(int connectTimeout) throws JSchException{
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this.connectTimeout=connectTimeout;
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try{
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Session _session=getSession();
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if(!_session.isConnected()){
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throw new JSchException("session is down");
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}
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if(io.in!=null){
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thread=new Thread(this);
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thread.setName("DirectTCPIP thread "+_session.getHost());
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if(_session.daemon_thread){
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thread.setDaemon(_session.daemon_thread);
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}
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thread.start();
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}
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else {
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sendChannelOpen();
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}
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}
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catch(Exception e){
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io.close();
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io=null;
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Channel.del(this);
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if (e instanceof JSchException) {
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throw (JSchException) e;
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}
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}
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}
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public void run(){
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try{
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sendChannelOpen();
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Buffer buf=new Buffer(rmpsize);
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Packet packet=new Packet(buf);
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Session _session=getSession();
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int i=0;
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while(isConnected() &&
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thread!=null &&
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io!=null &&
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io.in!=null){
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i=io.in.read(buf.buffer,
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14,
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buf.buffer.length-14
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-Session.buffer_margin
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);
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if(i<=0){
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eof();
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break;
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}
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packet.reset();
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buf.putByte((byte)Session.SSH_MSG_CHANNEL_DATA);
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buf.putInt(recipient);
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buf.putInt(i);
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buf.skip(i);
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synchronized(this){
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if(close)
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break;
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_session.write(packet, this, i);
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}
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}
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}
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catch(Exception e){
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}
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disconnect();
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}
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public void setInputStream(InputStream in){
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io.setInputStream(in);
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}
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public void setOutputStream(OutputStream out){
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io.setOutputStream(out);
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}
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public void setHost(String host){this.host=host;}
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public void setPort(int port){this.port=port;}
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public void setOrgIPAddress(String foo){this.originator_IP_address=foo;}
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public void setOrgPort(int foo){this.originator_port=foo;}
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protected Packet genChannelOpenPacket(){
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Buffer buf = new Buffer(50 + // 6 + 4*8 + 12
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host.length() + originator_IP_address.length() +
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Session.buffer_margin);
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Packet packet = new Packet(buf);
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// byte SSH_MSG_CHANNEL_OPEN(90)
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// string channel type //
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// uint32 sender channel // 0
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// uint32 initial window size // 0x100000(65536)
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// uint32 maxmum packet size // 0x4000(16384)
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packet.reset();
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buf.putByte((byte)90);
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buf.putString(this.type);
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buf.putInt(id);
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buf.putInt(lwsize);
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buf.putInt(lmpsize);
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buf.putString(Util.str2byte(host));
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buf.putInt(port);
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buf.putString(Util.str2byte(originator_IP_address));
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buf.putInt(originator_port);
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return packet;
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}
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}
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