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  66   <h1>Source code for nepi.resources.planetlab.vroute</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.application</span> <span class="kn">import</span> <span class="n">LinuxApplication</span>
  88 <span class="kn">from</span> <span class="nn">nepi.resources.planetlab.node</span> <span class="kn">import</span> <span class="n">PlanetlabNode</span>
  89 <span class="kn">from</span> <span class="nn">nepi.resources.planetlab.tap</span> <span class="kn">import</span> <span class="n">PlanetlabTap</span>
  90 <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>
  91
  92 <span class="kn">import</span> <span class="nn">os</span>
  93 <span class="kn">import</span> <span class="nn">time</span>
  94
  95 <span class="n">PYTHON_VSYS_VERSION</span> <span class="o">=</span> <span class="s">&quot;1.0&quot;</span>
  96
  97 <span class="nd">@clsinit_copy</span>
  98 <div class="viewcode-block" id="PlanetlabVroute"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute">[docs]</a><span class="k">class</span> <span class="nc">PlanetlabVroute</span><span class="p">(</span><span class="n">LinuxApplication</span><span class="p">):</span>
  99     <span class="n">_rtype</span> <span class="o">=</span> <span class="s">&quot;planetlab::Vroute&quot;</span>
 100     <span class="n">_help</span> <span class="o">=</span> <span class="s">&quot;Creates a Vroute on a PlanetLab host&quot;</span>
 101     <span class="n">_platform</span> <span class="o">=</span> <span class="s">&quot;planetlab&quot;</span>
 102
 103     <span class="nd">@classmethod</span>
 104     <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
 105         <span class="n">action</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;action&quot;</span><span class="p">,</span> <span class="s">&quot;Either add or del&quot;</span><span class="p">,</span>
 106               <span class="n">allowed</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;add&quot;</span><span class="p">,</span> <span class="s">&quot;del&quot;</span><span class="p">],</span>
 107               <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;add&quot;</span><span class="p">,</span>
 108               <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 109
 110         <span class="n">prefix</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;prefix&quot;</span><span class="p">,</span> <span class="s">&quot;IPv4 Prefix&quot;</span><span class="p">,</span>
 111               <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 112
 113         <span class="n">nexthop</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;nexthop&quot;</span><span class="p">,</span> <span class="s">&quot;IPv4 Address of the next hop&quot;</span><span class="p">,</span>
 114               <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 115
 116         <span class="n">network</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;network&quot;</span><span class="p">,</span> <span class="s">&quot;IPv4 Network Address&quot;</span><span class="p">,</span>
 117               <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 118
 119         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">action</span><span class="p">)</span>
 120         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">prefix</span><span class="p">)</span>
 121         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">nexthop</span><span class="p">)</span>
 122         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">network</span><span class="p">)</span>
 123
 124     <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ec</span><span class="p">,</span> <span class="n">guid</span><span class="p">):</span>
 125         <span class="nb">super</span><span class="p">(</span><span class="n">PlanetlabVroute</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">ec</span><span class="p">,</span> <span class="n">guid</span><span class="p">)</span>
 126         <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">&quot;vroute-</span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">guid</span>
 127
 128     <span class="nd">@property</span>
 129 <div class="viewcode-block" id="PlanetlabVroute.tap"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.tap">[docs]</a>    <span class="k">def</span> <span class="nf">tap</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 130         <span class="n">tap</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">PlanetlabTap</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 131         <span class="k">if</span> <span class="n">tap</span><span class="p">:</span> <span class="k">return</span> <span class="n">tap</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 132         <span class="k">return</span> <span class="bp">None</span>
 133 </div>
 134     <span class="nd">@property</span>
 135 <div class="viewcode-block" id="PlanetlabVroute.node"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.node">[docs]</a>    <span class="k">def</span> <span class="nf">node</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 136         <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">tap</span><span class="o">.</span><span class="n">get_connected</span><span class="p">(</span><span class="n">PlanetlabNode</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 137         <span class="k">if</span> <span class="n">node</span><span class="p">:</span> <span class="k">return</span> <span class="n">node</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 138         <span class="k">return</span> <span class="bp">None</span>
 139 </div>
 140 <div class="viewcode-block" id="PlanetlabVroute.upload_sources"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.upload_sources">[docs]</a>    <span class="k">def</span> <span class="nf">upload_sources</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 141         <span class="c"># upload vif-creation python script</span>
 142         <span class="n">pl_vroute</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">__file__</span><span class="p">),</span>
 143                 <span class="s">&quot;scripts&quot;</span><span class="p">,</span>
 144                 <span class="s">&quot;pl-vroute.py&quot;</span><span class="p">)</span>
 145
 146         <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">upload</span><span class="p">(</span><span class="n">pl_vroute</span><span class="p">,</span>
 147                 <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">src_dir</span><span class="p">,</span> <span class="s">&quot;pl-vroute.py&quot;</span><span class="p">),</span>
 148                 <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">False</span><span class="p">)</span>
 149
 150         <span class="c"># upload stop.sh script</span>
 151         <span class="n">stop_command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">replace_paths</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_stop_command</span><span class="p">)</span>
 152         <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">upload</span><span class="p">(</span><span class="n">stop_command</span><span class="p">,</span>
 153                 <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;stop.sh&quot;</span><span class="p">),</span>
 154                 <span class="n">text</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
 155                 <span class="c"># Overwrite file every time. </span>
 156                 <span class="c"># The stop.sh has the path to the socket, wich should change</span>
 157                 <span class="c"># on every experiment run.</span>
 158                 <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">True</span><span class="p">)</span>
 159 </div>
 160 <div class="viewcode-block" id="PlanetlabVroute.upload_start_command"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.upload_start_command">[docs]</a>    <span class="k">def</span> <span class="nf">upload_start_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 161         <span class="c"># Overwrite file every time. </span>
 162         <span class="c"># The stop.sh has the path to the socket, wich should change</span>
 163         <span class="c"># on every experiment run.</span>
 164         <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">)</span>
 165         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;start.sh&quot;</span><span class="p">)</span>
 166         <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 167                 <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 168                 <span class="n">overwrite</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
 169   </div>
 170 <div class="viewcode-block" id="PlanetlabVroute.do_deploy"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.do_deploy">[docs]</a>    <span class="k">def</span> <span class="nf">do_deploy</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 171         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">tap</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">tap</span><span class="o">.</span><span class="n">state</span> <span class="o">&lt;</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">PROVISIONED</span><span class="p">:</span>
 172             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">schedule</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">reschedule_delay</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">deploy</span><span class="p">)</span>
 173         <span class="k">else</span><span class="p">:</span>
 174             <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">):</span>
 175                 <span class="bp">self</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_start_command</span><span class="p">)</span>
 176
 177             <span class="bp">self</span><span class="o">.</span><span class="n">do_discover</span><span class="p">()</span>
 178             <span class="bp">self</span><span class="o">.</span><span class="n">do_provision</span><span class="p">()</span>
 179
 180             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s">&quot;----- READY ---- &quot;</span><span class="p">)</span>
 181             <span class="bp">self</span><span class="o">.</span><span class="n">set_ready</span><span class="p">()</span>
 182 </div>
 183 <div class="viewcode-block" id="PlanetlabVroute.do_start"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.do_start">[docs]</a>    <span class="k">def</span> <span class="nf">do_start</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 184         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">READY</span><span class="p">:</span>
 185             <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">)</span>
 186             <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Starting command &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="n">command</span><span class="p">)</span>
 187
 188             <span class="c"># Vroute started during deployment</span>
 189             <span class="bp">self</span><span class="o">.</span><span class="n">set_started</span><span class="p">()</span>
 190         <span class="k">else</span><span class="p">:</span>
 191             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot; Failed to execute command &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="n">command</span>
 192             <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> <span class="n">out</span><span class="p">,</span> <span class="n">err</span><span class="p">)</span>
 193             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 194 </div>
 195 <div class="viewcode-block" id="PlanetlabVroute.do_stop"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.do_stop">[docs]</a>    <span class="k">def</span> <span class="nf">do_stop</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 196
 197         <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;command&#39;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&#39;&#39;</span>
 198
 199         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">STARTED</span><span class="p">:</span>
 200             <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Stopping command &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">_stop_command</span><span class="p">)</span>
 201
 202             <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;bash </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;stop.sh&quot;</span><span class="p">)</span>
 203             <span class="p">(</span><span class="n">out</span><span class="p">,</span> <span class="n">err</span><span class="p">),</span> <span class="n">proc</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">execute_command</span><span class="p">(</span><span class="n">command</span><span class="p">,</span>
 204                     <span class="n">blocking</span> <span class="o">=</span> <span class="bp">True</span><span class="p">)</span>
 205
 206             <span class="bp">self</span><span class="o">.</span><span class="n">set_stopped</span><span class="p">()</span>
 207 </div>
 208 <div class="viewcode-block" id="PlanetlabVroute.do_release"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.do_release">[docs]</a>    <span class="k">def</span> <span class="nf">do_release</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 209         <span class="c"># Node needs to wait until all associated RMs are released</span>
 210         <span class="c"># to be released</span>
 211         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;tearDown&quot;</span><span class="p">):</span>
 212             <span class="bp">self</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;tearDown&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_tear_down_command</span><span class="p">())</span>
 213
 214         <span class="nb">super</span><span class="p">(</span><span class="n">PlanetlabVroute</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">do_release</span><span class="p">()</span>
 215 </div>
 216     <span class="k">def</span> <span class="nf">_tear_down_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 217         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;action&quot;</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;del&quot;</span><span class="p">:</span>
 218             <span class="k">return</span>
 219
 220         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_stop_command</span>
 221
 222     <span class="nd">@property</span>
 223     <span class="k">def</span> <span class="nf">_start_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 224         <span class="n">command</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;sudo -S python ${SRC}/pl-vroute.py&quot;</span><span class="p">]</span>
 225         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-a </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;action&quot;</span><span class="p">))</span>
 226         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-n </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;network&quot;</span><span class="p">))</span>
 227         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-p </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;prefix&quot;</span><span class="p">))</span>
 228         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-g </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">tap</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;pointopoint&quot;</span><span class="p">))</span>
 229         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-f </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">tap</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;deviceName&quot;</span><span class="p">))</span>
 230         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot; &quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">command</span><span class="p">)</span>
 231
 232         <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">replace_paths</span><span class="p">(</span><span class="n">command</span><span class="p">)</span>
 233         <span class="k">return</span> <span class="n">command</span>
 234
 235     <span class="nd">@property</span>
 236     <span class="k">def</span> <span class="nf">_stop_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 237         <span class="n">command</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;sudo -S python ${SRC}/pl-vroute.py&quot;</span><span class="p">]</span>
 238         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-a </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="s">&quot;del&quot;</span><span class="p">)</span>
 239         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-n </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;network&quot;</span><span class="p">))</span>
 240         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-p </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;prefix&quot;</span><span class="p">))</span>
 241         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-g </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;nexthop&quot;</span><span class="p">))</span>
 242         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;-f </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">tap</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;deviceName&quot;</span><span class="p">))</span>
 243         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot; &quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">command</span><span class="p">)</span>
 244
 245         <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">replace_paths</span><span class="p">(</span><span class="n">command</span><span class="p">)</span>
 246         <span class="k">return</span> <span class="n">command</span>
 247
 248 <div class="viewcode-block" id="PlanetlabVroute.valid_connection"><a class="viewcode-back" href="../../../../_layout/nepi.resources.planetlab.html#nepi.resources.planetlab.vroute.PlanetlabVroute.valid_connection">[docs]</a>    <span class="k">def</span> <span class="nf">valid_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">guid</span><span class="p">):</span>
 249         <span class="c"># TODO: Validate!</span>
 250         <span class="k">return</span> <span class="bp">True</span>
 251 </pre></div></div></div>
 252
 253           </div>
 254         </div>
 255       </div>
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