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  66   <h1>Source code for nepi.resources.planetlab.openvswitch.ovsport</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"># Authors: Alina Quereilhac &lt;alina.quereilhac@inria.fr&gt;</span>
  84 <span class="c">#         Alexandros Kouvakas &lt;alexandros.kouvakas@inria.fr&gt;</span>
  85 <span class="c">#         Julien Tribino &lt;julien.tribino@inria.fr&gt;</span>
  86
  87 <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>
  88 <span class="kn">from</span> <span class="nn">nepi.execution.resource</span> <span class="kn">import</span> <span class="n">ResourceManager</span><span class="p">,</span> <span class="n">clsinit_copy</span><span class="p">,</span> \
  89         <span class="n">ResourceState</span>
  90 <span class="kn">from</span> <span class="nn">nepi.resources.planetlab.openvswitch.ovs</span> <span class="kn">import</span> <span class="n">PlanetlabOVSSwitch</span>
  91 <span class="kn">from</span> <span class="nn">nepi.resources.planetlab.node</span> <span class="kn">import</span> <span class="n">PlanetlabNode</span>
  92 <span class="kn">from</span> <span class="nn">nepi.resources.linux.application</span> <span class="kn">import</span> <span class="n">LinuxApplication</span>
  93
  94 <span class="kn">import</span> <span class="nn">os</span>
  95
  96 <span class="nd">@clsinit_copy</span>
  97 <div class="viewcode-block" id="PlanetlabOVSPort"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort">[docs]</a><span class="k">class</span> <span class="nc">PlanetlabOVSPort</span><span class="p">(</span><span class="n">LinuxApplication</span><span class="p">):</span>
  98     <span class="sd">&quot;&quot;&quot;</span>
  99 <span class="sd">    .. class:: Class Args :</span>
 100 <span class="sd">      </span>
 101 <span class="sd">        :param ec: The Experiment controller</span>
 102 <span class="sd">        :type ec: ExperimentController</span>
 103 <span class="sd">        :param guid: guid of the RM</span>
 104 <span class="sd">        :type guid: int</span>
 105
 106 <span class="sd">    &quot;&quot;&quot;</span>
 107
 108     <span class="n">_rtype</span> <span class="o">=</span> <span class="s">&quot;planetlab::OVSPort&quot;</span>
 109     <span class="n">_help</span> <span class="o">=</span> <span class="s">&quot;Runs an OpenVSwitch on a PlanetLab host&quot;</span>
 110     <span class="n">_platform</span> <span class="o">=</span> <span class="s">&quot;planetlab&quot;</span>
 111
 112     <span class="n">_authorized_connections</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;planetlab::OVSSwitch&quot;</span><span class="p">,</span> <span class="s">&quot;linux::UdpTunnel&quot;</span><span class="p">,</span> <span class="s">&quot;linux::Tunnel&quot;</span><span class="p">]</span>
 113
 114     <span class="nd">@classmethod</span>
 115     <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
 116         <span class="sd">&quot;&quot;&quot; Register the attributes of OVSPort RM </span>
 117
 118 <span class="sd">        &quot;&quot;&quot;</span>
 119         <span class="n">port_name</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;port_name&quot;</span><span class="p">,</span> <span class="s">&quot;Name of the port&quot;</span><span class="p">,</span>
 120             <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>
 121         <span class="n">ip</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;ip&quot;</span><span class="p">,</span> <span class="s">&quot;IP of the endpoint. This is the attribute &quot;</span>
 122                                 <span class="s">&quot;you should use to establish a tunnel or a remote &quot;</span>
 123                                 <span class="s">&quot;connection between endpoint&quot;</span><span class="p">,</span>
 124             <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>
 125         <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;Network used by the port&quot;</span><span class="p">,</span>
 126             <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>
 127
 128         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">port_name</span><span class="p">)</span>
 129         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">ip</span><span class="p">)</span>
 130         <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>
 131
 132     <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>
 133         <span class="sd">&quot;&quot;&quot;</span>
 134 <span class="sd">        :param ec: The Experiment controller</span>
 135 <span class="sd">        :type ec: ExperimentController</span>
 136 <span class="sd">        :param guid: guid of the RM</span>
 137 <span class="sd">        :type guid: int</span>
 138 <span class="sd">    </span>
 139 <span class="sd">        &quot;&quot;&quot;</span>
 140         <span class="nb">super</span><span class="p">(</span><span class="n">PlanetlabOVSPort</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>
 141         <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">&quot;ovsport-</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>
 142         <span class="bp">self</span><span class="o">.</span><span class="n">_port_number</span> <span class="o">=</span> <span class="bp">None</span>
 143
 144     <span class="nd">@property</span>
 145 <div class="viewcode-block" id="PlanetlabOVSPort.node"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.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>
 146         <span class="sd">&quot;&quot;&quot; Node that run the switch and the ports</span>
 147 <span class="sd">        &quot;&quot;&quot;</span>
 148         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span><span class="o">.</span><span class="n">node</span>
 149 </div>
 150     <span class="nd">@property</span>
 151 <div class="viewcode-block" id="PlanetlabOVSPort.ovsswitch"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.ovsswitch">[docs]</a>    <span class="k">def</span> <span class="nf">ovsswitch</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 152         <span class="sd">&quot;&quot;&quot; Switch where the port is created</span>
 153 <span class="sd">        &quot;&quot;&quot;</span>
 154         <span class="n">ovsswitch</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">PlanetlabOVSSwitch</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 155         <span class="k">if</span> <span class="n">ovsswitch</span><span class="p">:</span> <span class="k">return</span> <span class="n">ovsswitch</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 156         <span class="k">return</span> <span class="bp">None</span>
 157         </div>
 158     <span class="nd">@property</span>
 159 <div class="viewcode-block" id="PlanetlabOVSPort.port_number"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.port_number">[docs]</a>    <span class="k">def</span> <span class="nf">port_number</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 160         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_port_number</span>
 161 </div>
 162 <div class="viewcode-block" id="PlanetlabOVSPort.valid_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.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>
 163         <span class="sd">&quot;&quot;&quot; Check if the connection is available.</span>
 164
 165 <span class="sd">        :param guid: Guid of the current RM</span>
 166 <span class="sd">        :type guid: int</span>
 167 <span class="sd">        :rtype:  Boolean</span>
 168
 169 <span class="sd">        &quot;&quot;&quot;</span>
 170         <span class="n">rm</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">get_resource</span><span class="p">(</span><span class="n">guid</span><span class="p">)</span>
 171         <span class="k">if</span> <span class="n">rm</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">()</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_authorized_connections</span><span class="p">:</span>
 172             <span class="k">return</span> <span class="bp">False</span>
 173
 174         <span class="k">return</span> <span class="bp">True</span>
 175 </div>
 176 <div class="viewcode-block" id="PlanetlabOVSPort.create_port"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.create_port">[docs]</a>    <span class="k">def</span> <span class="nf">create_port</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 177         <span class="sd">&quot;&quot;&quot; Create the desired port</span>
 178 <span class="sd">        &quot;&quot;&quot;</span>
 179         <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Creating the port </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">&#39;port_name&#39;</span><span class="p">)</span>
 180         <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 181
 182         <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">&#39;port_name&#39;</span><span class="p">):</span>
 183             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;The port name is not assigned&quot;</span>
 184             <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>
 185             <span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">,</span> <span class="n">msg</span>
 186
 187         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span><span class="p">:</span>
 188             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;The OVSwitch RM is not running&quot;</span>
 189             <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>
 190             <span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">,</span> <span class="n">msg</span>
 191
 192         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs create-port </span><span class="si">%s</span><span class="s"> </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span>
 193                 <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;bridge_name&#39;</span><span class="p">),</span>
 194                 <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;port_name&#39;</span><span class="p">))</span>
 195
 196         <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;create_port.sh&quot;</span><span class="p">)</span>
 197         <span class="k">try</span><span class="p">:</span>
 198             <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>
 199                     <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 200                     <span class="n">sudo</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
 201                     <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;port_stdout&quot;</span><span class="p">,</span>
 202                     <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;port_stderr&quot;</span><span class="p">,</span>
 203                     <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;port_pidfile&quot;</span><span class="p">,</span>
 204                     <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;port_exitcode&quot;</span><span class="p">)</span>
 205         <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
 206             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Could not create ovs-port&quot;</span>
 207             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 208             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 209
 210         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Created port </span><span class="si">%s</span><span class="s"> on switch </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span>
 211             <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;port_name&#39;</span><span class="p">),</span>
 212             <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;bridge_name&#39;</span><span class="p">)))</span>
 213             </div>
 214 <div class="viewcode-block" id="PlanetlabOVSPort.initiate_udp_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.initiate_udp_connection">[docs]</a>    <span class="k">def</span> <span class="nf">initiate_udp_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">connection_app_home</span><span class="p">,</span>
 215             <span class="n">connection_run_home</span><span class="p">,</span> <span class="n">cipher</span><span class="p">,</span> <span class="n">cipher_key</span><span class="p">,</span> <span class="n">bwlimit</span><span class="p">,</span> <span class="n">txqueuelen</span><span class="p">):</span>
 216         <span class="sd">&quot;&quot;&quot; Get the local_endpoint of the port</span>
 217 <span class="sd">        &quot;&quot;&quot;</span>
 218         <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Discovering the port number for </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">&#39;port_name&#39;</span><span class="p">)</span>
 219         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 220
 221         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs get-local-endpoint </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">&#39;port_name&#39;</span><span class="p">)</span>
 222
 223         <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="n">connection_app_home</span><span class="p">,</span> <span class="s">&quot;get_port.sh&quot;</span><span class="p">)</span>
 224         <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">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="n">connection_run_home</span><span class="p">,</span>
 225                 <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 226                 <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 227                 <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
 228                 <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;get_port_pidfile&quot;</span><span class="p">,</span>
 229                 <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;get_port_exitcode&quot;</span><span class="p">,</span>
 230                 <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;get_port_stdout&quot;</span><span class="p">,</span>
 231                 <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;get_port_stderr&quot;</span><span class="p">)</span>
 232
 233         <span class="k">if</span> <span class="n">err</span> <span class="o">!=</span> <span class="s">&quot;&quot;</span><span class="p">:</span>
 234             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Error retrieving the local endpoint of the port&quot;</span>
 235             <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>
 236             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 237
 238         <span class="k">if</span> <span class="n">out</span><span class="p">:</span>
 239             <span class="bp">self</span><span class="o">.</span><span class="n">_port_number</span> <span class="o">=</span> <span class="n">out</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
 240
 241         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;The number of the </span><span class="si">%s</span><span class="s"> is </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;port_name&#39;</span><span class="p">),</span>
 242            <span class="bp">self</span><span class="o">.</span><span class="n">port_number</span><span class="p">))</span>
 243
 244         <span class="c"># Must set a routing rule in the ovs client nodes so they know</span>
 245         <span class="c"># that the LAN can be found through the switch</span>
 246         <span class="k">if</span> <span class="n">remote_endpoint</span><span class="o">.</span><span class="n">is_rm_instance</span><span class="p">(</span><span class="s">&quot;planetlab::Tap&quot;</span><span class="p">):</span>
 247             <span class="bp">self</span><span class="o">.</span><span class="n">_vroute</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">register_resource</span><span class="p">(</span><span class="s">&quot;planetlab::Vroute&quot;</span><span class="p">)</span>
 248             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_vroute</span><span class="p">,</span> <span class="s">&quot;action&quot;</span><span class="p">,</span> <span class="s">&quot;add&quot;</span><span class="p">)</span>
 249             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_vroute</span><span class="p">,</span> <span class="s">&quot;prefix&quot;</span><span class="p">,</span> <span class="n">remote_endpoint</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>
 250             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_vroute</span><span class="p">,</span> <span class="s">&quot;nexthop&quot;</span><span class="p">,</span> <span class="n">remote_endpoint</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>
 251             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_vroute</span><span class="p">,</span> <span class="s">&quot;network&quot;</span><span class="p">,</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>
 252
 253             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">register_connection</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_vroute</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="o">.</span><span class="n">guid</span><span class="p">)</span>
 254             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">deploy</span><span class="p">(</span><span class="n">guids</span><span class="o">=</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_vroute</span><span class="p">],</span> <span class="n">group</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">deployment_group</span><span class="p">)</span>
 255
 256             <span class="c"># For debugging</span>
 257             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Route for the tap configured&quot;</span>
 258             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 259
 260         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">port_number</span>
 261 </div>
 262 <div class="viewcode-block" id="PlanetlabOVSPort.establish_udp_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.establish_udp_connection">[docs]</a>    <span class="k">def</span> <span class="nf">establish_udp_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span>
 263             <span class="n">connection_app_home</span><span class="p">,</span>
 264             <span class="n">connection_run_home</span><span class="p">,</span>
 265             <span class="n">port</span><span class="p">):</span>
 266         <span class="n">remote_ip</span> <span class="o">=</span> <span class="n">remote_endpoint</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;ip&quot;</span><span class="p">)</span>
 267         <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_establish_connection_command</span><span class="p">(</span><span class="n">port</span><span class="p">,</span> <span class="n">remote_ip</span><span class="p">)</span>
 268
 269         <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="n">connection_app_home</span><span class="p">,</span> <span class="s">&quot;connect_port.sh&quot;</span><span class="p">)</span>
 270         <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">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="n">connection_run_home</span><span class="p">,</span>
 271                 <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 272                 <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 273                 <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
 274                 <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;connect_port_pidfile&quot;</span><span class="p">,</span>
 275                 <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;connect_port_exitcode&quot;</span><span class="p">,</span>
 276                 <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;connect_port_stdout&quot;</span><span class="p">,</span>
 277                 <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;connect_port_stderr&quot;</span><span class="p">)</span>
 278
 279         <span class="c"># For debugging</span>
 280         <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Connection on port configured&quot;</span>
 281         <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 282 </div>
 283     <span class="k">def</span> <span class="nf">_establish_connection_command</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">port</span><span class="p">,</span> <span class="n">remote_ip</span><span class="p">):</span>
 284         <span class="sd">&quot;&quot;&quot; Script to create the connection from a switch to a </span>
 285 <span class="sd">             remote endpoint</span>
 286 <span class="sd">        &quot;&quot;&quot;</span>
 287         <span class="n">local_port_name</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;port_name&#39;</span><span class="p">)</span>
 288
 289         <span class="n">command</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;sliver-ovs&quot;</span><span class="p">]</span>
 290         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&quot;set-remote-endpoint&quot;</span><span class="p">)</span>
 291         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">local_port_name</span><span class="p">)</span>
 292         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">remote_ip</span><span class="p">)</span>
 293         <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">port</span><span class="p">)</span>
 294         <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>
 295         <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>
 296         <span class="k">return</span> <span class="n">command</span>
 297
 298 <div class="viewcode-block" id="PlanetlabOVSPort.verify_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.verify_connection">[docs]</a>    <span class="k">def</span> <span class="nf">verify_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">connection_app_home</span><span class="p">,</span>
 299                 <span class="n">connection_run_home</span><span class="p">):</span>
 300         <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span><span class="o">.</span><span class="n">ovs_status</span><span class="p">()</span>
 301 </div>
 302 <div class="viewcode-block" id="PlanetlabOVSPort.terminate_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.terminate_connection">[docs]</a>    <span class="k">def</span> <span class="nf">terminate_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">connection_app_home</span><span class="p">,</span>
 303                 <span class="n">connection_run_home</span><span class="p">):</span>
 304         <span class="k">return</span> <span class="bp">True</span>
 305 </div>
 306 <div class="viewcode-block" id="PlanetlabOVSPort.check_status"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.check_status">[docs]</a>    <span class="k">def</span> <span class="nf">check_status</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 307         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">status</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_pid</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ppid</span><span class="p">)</span>
 308 </div>
 309 <div class="viewcode-block" id="PlanetlabOVSPort.do_provision"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.do_provision">[docs]</a>    <span class="k">def</span> <span class="nf">do_provision</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 310         <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">mkdir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">)</span>
 311
 312         <span class="bp">self</span><span class="o">.</span><span class="n">create_port</span><span class="p">()</span>
 313         <span class="n">end_ip</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;virtual_ip_pref&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">&#39;/&#39;</span><span class="p">)</span>
 314         <span class="bp">self</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;ip&quot;</span><span class="p">,</span> <span class="n">end_ip</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
 315
 316         <span class="c">#Check the status of the OVS Switch</span>
 317         <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span><span class="o">.</span><span class="n">ovs_status</span><span class="p">()</span>
 318
 319         <span class="bp">self</span><span class="o">.</span><span class="n">set_provisioned</span><span class="p">()</span>
 320                 </div>
 321 <div class="viewcode-block" id="PlanetlabOVSPort.do_deploy"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.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>
 322         <span class="sd">&quot;&quot;&quot; Deploy the OVS port after the OVS Switch</span>
 323 <span class="sd">        &quot;&quot;&quot;</span>
 324         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">ovsswitch</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">READY</span><span class="p">:</span>
 325             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s">&quot;---- RESCHEDULING DEPLOY ---- OVSwitch state </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">ovsswitch</span><span class="o">.</span><span class="n">state</span> <span class="p">)</span>
 326             <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>
 327         <span class="k">else</span><span class="p">:</span>
 328             <span class="bp">self</span><span class="o">.</span><span class="n">do_discover</span><span class="p">()</span>
 329             <span class="bp">self</span><span class="o">.</span><span class="n">do_provision</span><span class="p">()</span>
 330
 331             <span class="bp">self</span><span class="o">.</span><span class="n">set_ready</span><span class="p">()</span>
 332 </div>
 333 <div class="viewcode-block" id="PlanetlabOVSPort.do_release"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovsport.PlanetlabOVSPort.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>
 334         <span class="sd">&quot;&quot;&quot; Delete the port on the OVSwitch. It needs to wait for the tunnel</span>
 335 <span class="sd">        to be released.</span>
 336 <span class="sd">        &quot;&quot;&quot;</span>
 337         <span class="kn">from</span> <span class="nn">nepi.resources.linux.udptunnel</span> <span class="kn">import</span> <span class="n">LinuxUdpTunnel</span>
 338         <span class="n">rm</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">LinuxUdpTunnel</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 339
 340         <span class="k">if</span> <span class="n">rm</span> <span class="ow">and</span> <span class="n">rm</span><span class="p">[</span><span class="mi">0</span><span class="p">]</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">STOPPED</span><span class="p">:</span>
 341             <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">release</span><span class="p">)</span>
 342             <span class="k">return</span>
 343
 344         <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Deleting the port </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">&#39;port_name&#39;</span><span class="p">)</span>
 345         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 346
 347         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs del_port </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">&#39;port_name&#39;</span><span class="p">)</span>
 348
 349         <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;stop.sh&quot;</span><span class="p">)</span>
 350         <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>
 351                 <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 352                 <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 353                 <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;stop_pidfile&quot;</span><span class="p">,</span>
 354                 <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;stop_exitcode&quot;</span><span class="p">,</span>
 355                 <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;stop_stdout&quot;</span><span class="p">,</span>
 356                 <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;stop_stderr&quot;</span><span class="p">)</span>
 357
 358         <span class="nb">super</span><span class="p">(</span><span class="n">PlanetlabOVSPort</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>
 359 </pre></div></div></div>
 360
 361           </div>
 362         </div>
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