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+ <h1>Source code for nepi.resources.planetlab.openvswitch.ovsport</h1><div class="highlight"><pre>
+<span class="c">#</span>
+<span class="c"># NEPI, a framework to manage network experiments</span>
+<span class="c"># Copyright (C) 2013 INRIA</span>
+<span class="c">#</span>
+<span class="c"># This program is free software: you can redistribute it and/or modify</span>
+<span class="c"># it under the terms of the GNU General Public License version 2 as</span>
+<span class="c"># published by the Free Software Foundation;</span>
+<span class="c">#</span>
+<span class="c"># This program is distributed in the hope that it will be useful,</span>
+<span class="c"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c"># GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c"># You should have received a copy of the GNU General Public License</span>
+<span class="c"># along with this program. If not, see <http://www.gnu.org/licenses/>.</span>
+<span class="c">#</span>
+<span class="c"># Authors: Alina Quereilhac <alina.quereilhac@inria.fr></span>
+<span class="c"># Alexandros Kouvakas <alexandros.kouvakas@inria.fr></span>
+<span class="c"># Julien Tribino <julien.tribino@inria.fr></span>
+
+<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>
+<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> \
+ <span class="n">ResourceState</span>
+<span class="kn">from</span> <span class="nn">nepi.resources.planetlab.openvswitch.ovs</span> <span class="kn">import</span> <span class="n">PlanetlabOVSSwitch</span>
+<span class="kn">from</span> <span class="nn">nepi.resources.planetlab.node</span> <span class="kn">import</span> <span class="n">PlanetlabNode</span>
+<span class="kn">from</span> <span class="nn">nepi.resources.linux.application</span> <span class="kn">import</span> <span class="n">LinuxApplication</span>
+
+<span class="kn">import</span> <span class="nn">os</span>
+
+<span class="nd">@clsinit_copy</span>
+<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>
+ <span class="sd">"""</span>
+<span class="sd"> .. class:: Class Args :</span>
+<span class="sd"> </span>
+<span class="sd"> :param ec: The Experiment controller</span>
+<span class="sd"> :type ec: ExperimentController</span>
+<span class="sd"> :param guid: guid of the RM</span>
+<span class="sd"> :type guid: int</span>
+
+<span class="sd"> """</span>
+
+ <span class="n">_rtype</span> <span class="o">=</span> <span class="s">"planetlab::OVSPort"</span>
+ <span class="n">_help</span> <span class="o">=</span> <span class="s">"Runs an OpenVSwitch on a PlanetLab host"</span>
+ <span class="n">_platform</span> <span class="o">=</span> <span class="s">"planetlab"</span>
+
+ <span class="n">_authorized_connections</span> <span class="o">=</span> <span class="p">[</span><span class="s">"planetlab::OVSSwitch"</span><span class="p">,</span> <span class="s">"linux::UdpTunnel"</span><span class="p">,</span> <span class="s">"linux::Tunnel"</span><span class="p">]</span>
+
+ <span class="nd">@classmethod</span>
+ <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
+ <span class="sd">""" Register the attributes of OVSPort RM </span>
+
+<span class="sd"> """</span>
+ <span class="n">port_name</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"port_name"</span><span class="p">,</span> <span class="s">"Name of the port"</span><span class="p">,</span>
+ <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>
+ <span class="n">ip</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"ip"</span><span class="p">,</span> <span class="s">"IP of the endpoint. This is the attribute "</span>
+ <span class="s">"you should use to establish a tunnel or a remote "</span>
+ <span class="s">"connection between endpoint"</span><span class="p">,</span>
+ <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>
+ <span class="n">network</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"network"</span><span class="p">,</span> <span class="s">"Network used by the port"</span><span class="p">,</span>
+ <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>
+
+ <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>
+ <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>
+ <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>
+
+ <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>
+ <span class="sd">"""</span>
+<span class="sd"> :param ec: The Experiment controller</span>
+<span class="sd"> :type ec: ExperimentController</span>
+<span class="sd"> :param guid: guid of the RM</span>
+<span class="sd"> :type guid: int</span>
+<span class="sd"> </span>
+<span class="sd"> """</span>
+ <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>
+ <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">"ovsport-</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">guid</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">_port_number</span> <span class="o">=</span> <span class="bp">None</span>
+
+ <span class="nd">@property</span>
+<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>
+ <span class="sd">""" Node that run the switch and the ports</span>
+<span class="sd"> """</span>
+ <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>
+</div>
+ <span class="nd">@property</span>
+<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>
+ <span class="sd">""" Switch where the port is created</span>
+<span class="sd"> """</span>
+ <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>
+ <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>
+ <span class="k">return</span> <span class="bp">None</span>
+ </div>
+ <span class="nd">@property</span>
+<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>
+ <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_port_number</span>
+</div>
+<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>
+ <span class="sd">""" Check if the connection is available.</span>
+
+<span class="sd"> :param guid: Guid of the current RM</span>
+<span class="sd"> :type guid: int</span>
+<span class="sd"> :rtype: Boolean</span>
+
+<span class="sd"> """</span>
+ <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>
+ <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>
+ <span class="k">return</span> <span class="bp">False</span>
+
+ <span class="k">return</span> <span class="bp">True</span>
+</div>
+<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>
+ <span class="sd">""" Create the desired port</span>
+<span class="sd"> """</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Creating the port </span><span class="si">%s</span><span class="s">"</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">'port_name'</span><span class="p">)</span>
+ <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>
+
+ <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">'port_name'</span><span class="p">):</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"The port name is not assigned"</span>
+ <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="k">raise</span> <span class="ne">AttributeError</span><span class="p">,</span> <span class="n">msg</span>
+
+ <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>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"The OVSwitch RM is not running"</span>
+ <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="k">raise</span> <span class="ne">AttributeError</span><span class="p">,</span> <span class="n">msg</span>
+
+ <span class="n">command</span> <span class="o">=</span> <span class="s">"sliver-ovs create-port </span><span class="si">%s</span><span class="s"> </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="p">(</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">'bridge_name'</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">'port_name'</span><span class="p">))</span>
+
+ <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">"create_port.sh"</span><span class="p">)</span>
+ <span class="k">try</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">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>
+ <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
+ <span class="n">sudo</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
+ <span class="n">stderr</span><span class="o">=</span><span class="s">"port_stdout"</span><span class="p">,</span>
+ <span class="n">stdout</span><span class="o">=</span><span class="s">"port_stderr"</span><span class="p">,</span>
+ <span class="n">pidfile</span><span class="o">=</span><span class="s">"port_pidfile"</span><span class="p">,</span>
+ <span class="n">ecodefile</span><span class="o">=</span><span class="s">"port_exitcode"</span><span class="p">)</span>
+ <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Could not create ovs-port"</span>
+ <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>
+ <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">"Created port </span><span class="si">%s</span><span class="s"> on switch </span><span class="si">%s</span><span class="s">"</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">'port_name'</span><span class="p">),</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">'bridge_name'</span><span class="p">)))</span>
+ </div>
+<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>
+ <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>
+ <span class="sd">""" Get the local_endpoint of the port</span>
+<span class="sd"> """</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Discovering the port number for </span><span class="si">%s</span><span class="s">"</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">'port_name'</span><span class="p">)</span>
+ <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>
+
+ <span class="n">command</span> <span class="o">=</span> <span class="s">"sliver-ovs get-local-endpoint </span><span class="si">%s</span><span class="s">"</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">'port_name'</span><span class="p">)</span>
+
+ <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">"get_port.sh"</span><span class="p">)</span>
+ <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>
+ <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
+ <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
+ <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
+ <span class="n">pidfile</span><span class="o">=</span><span class="s">"get_port_pidfile"</span><span class="p">,</span>
+ <span class="n">ecodefile</span><span class="o">=</span><span class="s">"get_port_exitcode"</span><span class="p">,</span>
+ <span class="n">stdout</span><span class="o">=</span><span class="s">"get_port_stdout"</span><span class="p">,</span>
+ <span class="n">stderr</span><span class="o">=</span><span class="s">"get_port_stderr"</span><span class="p">)</span>
+
+ <span class="k">if</span> <span class="n">err</span> <span class="o">!=</span> <span class="s">""</span><span class="p">:</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Error retrieving the local endpoint of the port"</span>
+ <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="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
+
+ <span class="k">if</span> <span class="n">out</span><span class="p">:</span>
+ <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>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">"The number of the </span><span class="si">%s</span><span class="s"> is </span><span class="si">%s</span><span class="s">"</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">'port_name'</span><span class="p">),</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">port_number</span><span class="p">))</span>
+
+ <span class="c"># Must set a routing rule in the ovs client nodes so they know</span>
+ <span class="c"># that the LAN can be found through the switch</span>
+ <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">"planetlab::Tap"</span><span class="p">):</span>
+ <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">"planetlab::Vroute"</span><span class="p">)</span>
+ <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">"action"</span><span class="p">,</span> <span class="s">"add"</span><span class="p">)</span>
+ <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">"prefix"</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">"prefix"</span><span class="p">))</span>
+ <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">"nexthop"</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">"pointopoint"</span><span class="p">))</span>
+ <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">"network"</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">"network"</span><span class="p">))</span>
+
+ <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>
+ <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>
+
+ <span class="c"># For debugging</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Route for the tap configured"</span>
+ <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>
+
+ <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">port_number</span>
+</div>
+<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>
+ <span class="n">connection_app_home</span><span class="p">,</span>
+ <span class="n">connection_run_home</span><span class="p">,</span>
+ <span class="n">port</span><span class="p">):</span>
+ <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">"ip"</span><span class="p">)</span>
+ <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>
+
+ <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">"connect_port.sh"</span><span class="p">)</span>
+ <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>
+ <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
+ <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
+ <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
+ <span class="n">pidfile</span><span class="o">=</span><span class="s">"connect_port_pidfile"</span><span class="p">,</span>
+ <span class="n">ecodefile</span><span class="o">=</span><span class="s">"connect_port_exitcode"</span><span class="p">,</span>
+ <span class="n">stdout</span><span class="o">=</span><span class="s">"connect_port_stdout"</span><span class="p">,</span>
+ <span class="n">stderr</span><span class="o">=</span><span class="s">"connect_port_stderr"</span><span class="p">)</span>
+
+ <span class="c"># For debugging</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Connection on port configured"</span>
+ <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>
+</div>
+ <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>
+ <span class="sd">""" Script to create the connection from a switch to a </span>
+<span class="sd"> remote endpoint</span>
+<span class="sd"> """</span>
+ <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">'port_name'</span><span class="p">)</span>
+
+ <span class="n">command</span> <span class="o">=</span> <span class="p">[</span><span class="s">"sliver-ovs"</span><span class="p">]</span>
+ <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"set-remote-endpoint"</span><span class="p">)</span>
+ <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>
+ <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>
+ <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>
+ <span class="n">command</span> <span class="o">=</span> <span class="s">" "</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">command</span><span class="p">)</span>
+ <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>
+ <span class="k">return</span> <span class="n">command</span>
+
+<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>
+ <span class="n">connection_run_home</span><span class="p">):</span>
+ <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>
+</div>
+<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>
+ <span class="n">connection_run_home</span><span class="p">):</span>
+ <span class="k">return</span> <span class="bp">True</span>
+</div>
+<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>
+ <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>
+</div>
+<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>
+ <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>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">create_port</span><span class="p">()</span>
+ <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">'virtual_ip_pref'</span><span class="p">)</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">'/'</span><span class="p">)</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">"ip"</span><span class="p">,</span> <span class="n">end_ip</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
+
+ <span class="c">#Check the status of the OVS Switch</span>
+ <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>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">set_provisioned</span><span class="p">()</span>
+ </div>
+<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>
+ <span class="sd">""" Deploy the OVS port after the OVS Switch</span>
+<span class="sd"> """</span>
+ <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"><</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">READY</span><span class="p">:</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s">"---- RESCHEDULING DEPLOY ---- OVSwitch state </span><span class="si">%s</span><span class="s"> "</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>
+ <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>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">do_discover</span><span class="p">()</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">do_provision</span><span class="p">()</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">set_ready</span><span class="p">()</span>
+</div>
+<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>
+ <span class="sd">""" Delete the port on the OVSwitch. It needs to wait for the tunnel</span>
+<span class="sd"> to be released.</span>
+<span class="sd"> """</span>
+ <span class="kn">from</span> <span class="nn">nepi.resources.linux.udptunnel</span> <span class="kn">import</span> <span class="n">LinuxUdpTunnel</span>
+ <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>
+
+ <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"><</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">STOPPED</span><span class="p">:</span>
+ <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>
+ <span class="k">return</span>
+
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Deleting the port </span><span class="si">%s</span><span class="s">"</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">'port_name'</span><span class="p">)</span>
+ <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>
+
+ <span class="n">command</span> <span class="o">=</span> <span class="s">"sliver-ovs del_port </span><span class="si">%s</span><span class="s">"</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">'port_name'</span><span class="p">)</span>
+
+ <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">"stop.sh"</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">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>
+ <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
+ <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
+ <span class="n">pidfile</span><span class="o">=</span><span class="s">"stop_pidfile"</span><span class="p">,</span>
+ <span class="n">ecodefile</span><span class="o">=</span><span class="s">"stop_exitcode"</span><span class="p">,</span>
+ <span class="n">stdout</span><span class="o">=</span><span class="s">"stop_stdout"</span><span class="p">,</span>
+ <span class="n">stderr</span><span class="o">=</span><span class="s">"stop_stderr"</span><span class="p">)</span>
+
+ <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>
+</pre></div></div></div>
+
+ </div>
+ </div>
+ </div>
+ <div class="clearer"></div>
+ </div>
+ <div class="related">
+ <h3>Navigation</h3>
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