215 lines
5.9 KiB
C#
215 lines
5.9 KiB
C#
using System;
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using System.IO;
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using System.Threading;
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using Tamir.SharpSsh.java.net;
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using Tamir.SharpSsh.java.lang;
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using InetAddress = Tamir.SharpSsh.java.net.InetAddress;
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using String = Tamir.SharpSsh.java.String;
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namespace Tamir.SharpSsh.jsch
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{
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/* -*-mode:java; c-basic-offset:2; -*- */
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/*
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Copyright (c) 2002,2003,2004 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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class PortWatcher : Tamir.SharpSsh.java.lang.Runnable
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{
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private static Tamir.SharpSsh.java.util.Vector pool=new Tamir.SharpSsh.java.util.Vector();
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internal Session session;
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internal int lport;
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internal int rport;
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internal String host;
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internal InetAddress boundaddress;
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internal Runnable thread;
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internal ServerSocket ss;
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internal static String[] getPortForwarding(Session session)
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{
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java.util.Vector foo=new java.util.Vector();
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lock(pool)
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{
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for(int i=0; i<pool.size(); i++)
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{
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PortWatcher p=(PortWatcher)(pool.elementAt(i));
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if(p.session==session)
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{
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foo.addElement(p.lport+":"+p.host+":"+p.rport);
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}
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}
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}
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String[] bar=new String[foo.size()];
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for(int i=0; i<foo.size(); i++)
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{
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bar[i]=(String)(foo.elementAt(i));
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}
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return bar;
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}
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internal static PortWatcher getPort(Session session, String address, int lport)
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{
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InetAddress addr;
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try
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{
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addr=InetAddress.getByName(address);
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}
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catch(Exception uhe)
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{
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throw new JSchException("PortForwardingL: invalid address "+address+" specified.");
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}
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lock(pool)
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{
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for(int i=0; i<pool.size(); i++)
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{
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PortWatcher p=(PortWatcher)(pool.elementAt(i));
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if(p.session==session && p.lport==lport)
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{
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if(p.boundaddress.isAnyLocalAddress() ||
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p.boundaddress.equals(addr))
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return p;
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}
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}
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return null;
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}
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}
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internal static PortWatcher addPort(Session session, String address, int lport, String host, int rport, ServerSocketFactory ssf)
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{
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if(getPort(session, address, lport)!=null)
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{
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throw new JSchException("PortForwardingL: local port "+ address+":"+lport+" is already registered.");
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}
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PortWatcher pw=new PortWatcher(session, address, lport, host, rport, ssf);
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pool.addElement(pw);
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return pw;
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}
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internal static void delPort(Session session, String address, int lport)
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{
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PortWatcher pw=getPort(session, address, lport);
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if(pw==null)
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{
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throw new JSchException("PortForwardingL: local port "+address+":"+lport+" is not registered.");
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}
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pw.delete();
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pool.removeElement(pw);
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}
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internal static void delPort(Session session)
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{
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lock(pool)
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{
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PortWatcher[] foo=new PortWatcher[pool.size()];
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int count=0;
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for(int i=0; i<pool.size(); i++)
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{
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PortWatcher p=(PortWatcher)(pool.elementAt(i));
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if(p.session==session)
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{
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p.delete();
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foo[count++]=p;
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}
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}
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for(int i=0; i<count; i++)
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{
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PortWatcher p=foo[i];
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pool.removeElement(p);
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}
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}
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}
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internal PortWatcher(Session session,
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String address, int lport,
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String host, int rport,
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ServerSocketFactory factory)
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{
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this.session=session;
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this.lport=lport;
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this.host=host;
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this.rport=rport;
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try
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{
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boundaddress=InetAddress.getByName(address);
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ss=(factory==null) ?
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new ServerSocket(lport, 0, boundaddress) :
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factory.createServerSocket(lport, 0, boundaddress);
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}
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catch(Exception e)
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{
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Console.WriteLine(e);
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throw new JSchException("PortForwardingL: local port "+address+":"+lport+" cannot be bound.");
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}
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}
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public void run()
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{
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Buffer buf=new Buffer(300); // ??
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Packet packet=new Packet(buf);
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thread=this;
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try
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{
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while(thread!=null)
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{
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Socket socket=ss.accept();
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socket.setTcpNoDelay(true);
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Stream In=socket.getInputStream();
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Stream Out=socket.getOutputStream();
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ChannelDirectTCPIP channel=new ChannelDirectTCPIP();
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channel.init();
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channel.setInputStream(In);
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channel.setOutputStream(Out);
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session.addChannel(channel);
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((ChannelDirectTCPIP)channel).setHost(host);
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((ChannelDirectTCPIP)channel).setPort(rport);
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((ChannelDirectTCPIP)channel).setOrgIPAddress(socket.getInetAddress().getHostAddress());
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((ChannelDirectTCPIP)channel).setOrgPort(socket.getPort());
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channel.connect();
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if(channel.exitstatus!=-1)
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{
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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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//System.out.println("! "+e);
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}
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delete();
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}
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internal void delete()
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{
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thread=null;
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try
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{
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if(ss!=null)ss.close();
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ss=null;
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}
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catch(Exception e)
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{
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}
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}
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}
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}
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