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  66   <h1>Source code for nepi.resources.planetlab.ns3.fdudptunnel</h1><div class="highlight"><pre>
  67 <span class="c">#</span>
  68 <span class="c">#    NEPI, a framework to manage network experiments</span>
  69 <span class="c">#    Copyright (C) 2013 INRIA</span>
  70 <span class="c">#</span>
  71 <span class="c">#    This program is free software: you can redistribute it and/or modify</span>
  72 <span class="c">#    it under the terms of the GNU General Public License version 2 as</span>
  73 <span class="c">#    published by the Free Software Foundation;</span>
  74 <span class="c">#</span>
  75 <span class="c">#    This program is distributed in the hope that it will be useful,</span>
  76 <span class="c">#    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
  77 <span class="c">#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
  78 <span class="c">#    GNU General Public License for more details.</span>
  79 <span class="c">#</span>
  80 <span class="c">#    You should have received a copy of the GNU General Public License</span>
  81 <span class="c">#    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
  82 <span class="c">#</span>
  83 <span class="c"># Author: Alina Quereilhac &lt;alina.quereilhac@inria.fr&gt;</span>
  84
  85 <span class="kn">from</span> <span class="nn">nepi.execution.attribute</span> <span class="kn">import</span> <span class="n">Attribute</span><span class="p">,</span> <span class="n">Flags</span><span class="p">,</span> <span class="n">Types</span>
  86 <span class="kn">from</span> <span class="nn">nepi.execution.resource</span> <span class="kn">import</span> <span class="n">clsinit_copy</span><span class="p">,</span> <span class="n">ResourceState</span>
  87 <span class="kn">from</span> <span class="nn">nepi.resources.linux.ns3.fdudptunnel</span> <span class="kn">import</span> <span class="n">LinuxNs3FdUdpTunnel</span>
  88 <span class="kn">from</span> <span class="nn">nepi.util.sshfuncs</span> <span class="kn">import</span> <span class="n">ProcStatus</span>
  89 <span class="kn">from</span> <span class="nn">nepi.util.timefuncs</span> <span class="kn">import</span> <span class="n">tnow</span><span class="p">,</span> <span class="n">tdiffsec</span>
  90
  91 <span class="kn">import</span> <span class="nn">base64</span>
  92 <span class="kn">import</span> <span class="nn">os</span>
  93 <span class="kn">import</span> <span class="nn">socket</span>
  94 <span class="kn">import</span> <span class="nn">time</span>
  95
  96 <span class="nd">@clsinit_copy</span>
  97 <div class="viewcode-block" id="PlanetlabNs3FdUdpTunnel"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.ns3.html#nepi.resources.planetlab.ns3.fdudptunnel.PlanetlabNs3FdUdpTunnel">[docs]</a><span class="k">class</span> <span class="nc">PlanetlabNs3FdUdpTunnel</span><span class="p">(</span><span class="n">LinuxNs3FdUdpTunnel</span><span class="p">):</span>
  98     <span class="n">_rtype</span> <span class="o">=</span> <span class="s">&quot;planetlab::ns3::FdUdpTunnel&quot;</span>
  99     <span class="n">_help</span> <span class="o">=</span> <span class="s">&quot;Constructs a tunnel between two Ns-3 FdNetdevices &quot;</span> \
 100             <span class="s">&quot;located in remote PlanetLab nodes using a UDP connection &quot;</span>
 101     <span class="n">_platform</span> <span class="o">=</span> <span class="s">&quot;planetlab::ns3&quot;</span>
 102
 103 <div class="viewcode-block" id="PlanetlabNs3FdUdpTunnel.get_endpoints"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.ns3.html#nepi.resources.planetlab.ns3.fdudptunnel.PlanetlabNs3FdUdpTunnel.get_endpoints">[docs]</a>    <span class="k">def</span> <span class="nf">get_endpoints</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 104         <span class="sd">&quot;&quot;&quot; Returns the list of RM that are endpoints to the tunnel </span>
 105 <span class="sd">        &quot;&quot;&quot;</span>
 106         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span> <span class="ow">or</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span><span class="p">:</span>
 107             <span class="kn">from</span> <span class="nn">nepi.resources.ns3.ns3fdnetdevice</span> <span class="kn">import</span> <span class="n">NS3BaseFdNetDevice</span>
 108             <span class="n">devices</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_connected</span><span class="p">(</span><span class="n">NS3BaseFdNetDevice</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 109             <span class="k">if</span> <span class="ow">not</span> <span class="n">devices</span> <span class="ow">or</span> <span class="nb">len</span><span class="p">(</span><span class="n">devices</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">2</span><span class="p">:</span>
 110                 <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Tunnel must be connected to exactly two FdNetDevices&quot;</span>
 111                 <span class="bp">self</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 112                 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 113
 114             <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span> <span class="o">=</span> <span class="n">devices</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 115             <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span> <span class="o">=</span> <span class="n">devices</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
 116             <span class="bp">self</span><span class="o">.</span><span class="n">_pi</span> <span class="o">=</span> <span class="bp">True</span>
 117
 118             <span class="c"># Set PI headers on</span>
 119             <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;EncapsulationMode&quot;</span><span class="p">,</span> <span class="s">&quot;DixPi&quot;</span><span class="p">)</span>
 120             <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;EncapsulationMode&quot;</span><span class="p">,</span> <span class="s">&quot;DixPi&quot;</span><span class="p">)</span>
 121
 122             <span class="n">simu</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span><span class="o">.</span><span class="n">simulation</span>
 123             <span class="kn">from</span> <span class="nn">nepi.resources.linux.node</span> <span class="kn">import</span> <span class="n">LinuxNode</span>
 124             <span class="n">nodes</span> <span class="o">=</span> <span class="n">simu</span><span class="o">.</span><span class="n">get_connected</span><span class="p">(</span><span class="n">LinuxNode</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 125             <span class="bp">self</span><span class="o">.</span><span class="n">_fd1node</span> <span class="o">=</span> <span class="n">nodes</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 126
 127             <span class="n">simu</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span><span class="o">.</span><span class="n">simulation</span>
 128             <span class="kn">from</span> <span class="nn">nepi.resources.linux.node</span> <span class="kn">import</span> <span class="n">LinuxNode</span>
 129             <span class="n">nodes</span> <span class="o">=</span> <span class="n">simu</span><span class="o">.</span><span class="n">get_connected</span><span class="p">(</span><span class="n">LinuxNode</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 130             <span class="bp">self</span><span class="o">.</span><span class="n">_fd2node</span> <span class="o">=</span> <span class="n">nodes</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 131
 132             <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1node</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;hostname&quot;</span><span class="p">)</span> <span class="o">==</span> \
 133                     <span class="bp">self</span><span class="o">.</span><span class="n">_fd2node</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;hostname&quot;</span><span class="p">):</span>
 134                 <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Tunnel requires endpoints on different hosts&quot;</span>
 135                 <span class="bp">self</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 136                 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 137
 138         <span class="k">return</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span><span class="p">]</span>
 139 </pre></div></div></div>
 140
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