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+ <h1>Source code for nepi.resources.linux.interface</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"># Author: Alina Quereilhac <alina.quereilhac@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">Types</span><span class="p">,</span> <span class="n">Flags</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.linux.node</span> <span class="kn">import</span> <span class="n">LinuxNode</span>
+<span class="kn">from</span> <span class="nn">nepi.resources.linux.channel</span> <span class="kn">import</span> <span class="n">LinuxChannel</span>
+
+<span class="kn">import</span> <span class="nn">collections</span>
+<span class="kn">import</span> <span class="nn">os</span>
+<span class="kn">import</span> <span class="nn">random</span>
+<span class="kn">import</span> <span class="nn">re</span>
+<span class="kn">import</span> <span class="nn">tempfile</span>
+<span class="kn">import</span> <span class="nn">time</span>
+
+<span class="c"># TODO: </span>
+<span class="c"># - check UP, MTU attributes!</span>
+<span class="c"># - clean up code and test!</span>
+
+<span class="nd">@clsinit_copy</span>
+<div class="viewcode-block" id="LinuxInterface"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface">[docs]</a><span class="k">class</span> <span class="nc">LinuxInterface</span><span class="p">(</span><span class="n">ResourceManager</span><span class="p">):</span>
+ <span class="n">_rtype</span> <span class="o">=</span> <span class="s">"linux::Interface"</span>
+ <span class="n">_help</span> <span class="o">=</span> <span class="s">"Controls network devices on Linux hosts through the ifconfig tool"</span>
+ <span class="n">_platform</span> <span class="o">=</span> <span class="s">"linux"</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="n">ip4</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"ip4"</span><span class="p">,</span> <span class="s">"IPv4 Address"</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">ip6</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"ip6"</span><span class="p">,</span> <span class="s">"IPv6 Address"</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">mac</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"mac"</span><span class="p">,</span> <span class="s">"MAC Address"</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">mask4</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"mask4"</span><span class="p">,</span> <span class="s">"IPv4 network mask"</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">mask6</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"mask6"</span><span class="p">,</span> <span class="s">"IPv6 network mask"</span><span class="p">,</span>
+ <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">Integer</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">mtu</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"mtu"</span><span class="p">,</span> <span class="s">"Maximum transmition unit for device"</span><span class="p">,</span>
+ <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">Integer</span><span class="p">)</span>
+
+ <span class="n">devname</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"deviceName"</span><span class="p">,</span>
+ <span class="s">"Name of the network interface (e.g. eth0, wlan0, etc)"</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">up</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"up"</span><span class="p">,</span> <span class="s">"Link up"</span><span class="p">,</span> <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">Bool</span><span class="p">)</span>
+
+ <span class="n">tear_down</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"tearDown"</span><span class="p">,</span> <span class="s">"Bash script to be executed before "</span> <span class="o">+</span> \
+ <span class="s">"releasing the resource"</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">ip4</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">ip6</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">mac</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">mask4</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">mask6</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">mtu</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">devname</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">up</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">tear_down</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="nb">super</span><span class="p">(</span><span class="n">LinuxInterface</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">_configured</span> <span class="o">=</span> <span class="bp">False</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">add_set_hooks</span><span class="p">()</span>
+
+<div class="viewcode-block" id="LinuxInterface.log_message"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.log_message">[docs]</a> <span class="k">def</span> <span class="nf">log_message</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">msg</span><span class="p">):</span>
+ <span class="k">return</span> <span class="s">" guid </span><span class="si">%d</span><span class="s"> - host </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">guid</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">get</span><span class="p">(</span><span class="s">"hostname"</span><span class="p">),</span> <span class="n">msg</span><span class="p">)</span>
+</div>
+ <span class="nd">@property</span>
+<div class="viewcode-block" id="LinuxInterface.node"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.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="n">node</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">LinuxNode</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
+ <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>
+ <span class="k">return</span> <span class="bp">None</span>
+</div>
+ <span class="nd">@property</span>
+<div class="viewcode-block" id="LinuxInterface.channel"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.channel">[docs]</a> <span class="k">def</span> <span class="nf">channel</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+ <span class="n">chan</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">LinuxChannel</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
+ <span class="k">if</span> <span class="n">chan</span><span class="p">:</span> <span class="k">return</span> <span class="n">chan</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>
+<div class="viewcode-block" id="LinuxInterface.do_discover"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.do_discover">[docs]</a> <span class="k">def</span> <span class="nf">do_discover</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+ <span class="n">devname</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">"deviceName"</span><span class="p">)</span>
+ <span class="n">ip4</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">"ip4"</span><span class="p">)</span>
+ <span class="n">ip6</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">"ip4"</span><span class="p">)</span>
+ <span class="n">mac</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">"mac"</span><span class="p">)</span>
+ <span class="n">mask4</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">"mask4"</span><span class="p">)</span>
+ <span class="n">mask6</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">"mask6"</span><span class="p">)</span>
+ <span class="n">mtu</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">"mtu"</span><span class="p">)</span>
+
+ <span class="c"># Get current interfaces information</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">execute</span><span class="p">(</span><span class="s">"ifconfig"</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">tty</span> <span class="o">=</span> <span class="bp">True</span><span class="p">)</span>
+
+ <span class="k">if</span> <span class="n">err</span> <span class="ow">and</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">():</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">" Error retrieving interface information "</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="n">out</span><span class="p">,</span> <span class="n">err</span><span class="p">)</span>
+ <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="s">"</span><span class="si">%s</span><span class="s"> - </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="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>
+
+ <span class="c"># Check if an interface is found matching the RM attributes</span>
+ <span class="n">ifaces</span> <span class="o">=</span> <span class="n">out</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">"</span><span class="se">\n\n</span><span class="s">"</span><span class="p">)</span>
+
+ <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">ifaces</span><span class="p">:</span>
+ <span class="n">m</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="s">"(\w+)\s+Link\s+encap:\w+(\s+HWaddr\s+(([0-9a-fA-F]{2}:?){6}))?(\s+inet\s+addr:((\d+\.?){4}).+Mask:(\d+\.\d+\.\d+\.\d+))?(.+inet6\s+addr:\s+([0-9a-fA-F:.]+)/(\d+))?(.+(UP))?(.+MTU:(\d+))?"</span><span class="p">,</span> <span class="n">i</span><span class="p">,</span> <span class="n">re</span><span class="o">.</span><span class="n">DOTALL</span><span class="p">)</span>
+
+ <span class="n">m</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+ <span class="n">dn</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+ <span class="n">mc</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
+ <span class="n">i4</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">5</span><span class="p">]</span>
+ <span class="n">msk4</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">7</span><span class="p">]</span>
+ <span class="n">i6</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">9</span><span class="p">]</span>
+ <span class="n">msk6</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">10</span><span class="p">]</span>
+ <span class="n">up</span> <span class="o">=</span> <span class="bp">True</span> <span class="k">if</span> <span class="n">m</span><span class="p">[</span><span class="mi">12</span><span class="p">]</span> <span class="k">else</span> <span class="bp">False</span>
+ <span class="n">mu</span> <span class="o">=</span> <span class="n">m</span><span class="p">[</span><span class="mi">14</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">"Found interface </span><span class="si">%(devname)s</span><span class="s"> with MAC </span><span class="si">%(mac)s</span><span class="s">,"</span>
+ <span class="s">"IPv4 </span><span class="si">%(ipv4)s</span><span class="s"> </span><span class="si">%(mask4)s</span><span class="s"> IPv6 </span><span class="si">%(ipv6)s</span><span class="s">/</span><span class="si">%(mask6)s</span><span class="s"> </span><span class="si">%(up)s</span><span class="s"> </span><span class="si">%(mtu)s</span><span class="s">"</span> <span class="o">%</span> <span class="p">({</span>
+ <span class="s">'devname'</span><span class="p">:</span> <span class="n">dn</span><span class="p">,</span>
+ <span class="s">'mac'</span><span class="p">:</span> <span class="n">mc</span><span class="p">,</span>
+ <span class="s">'ipv4'</span><span class="p">:</span> <span class="n">i4</span><span class="p">,</span>
+ <span class="s">'mask4'</span><span class="p">:</span> <span class="n">msk4</span><span class="p">,</span>
+ <span class="s">'ipv6'</span><span class="p">:</span> <span class="n">i6</span><span class="p">,</span>
+ <span class="s">'mask6'</span><span class="p">:</span> <span class="n">msk6</span><span class="p">,</span>
+ <span class="s">'up'</span><span class="p">:</span> <span class="n">up</span><span class="p">,</span>
+ <span class="s">'mtu'</span><span class="p">:</span> <span class="n">mu</span>
+ <span class="p">})</span> <span class="p">)</span>
+
+ <span class="c"># If the user didn't provide information we take the first </span>
+ <span class="c"># interface that is UP</span>
+ <span class="k">if</span> <span class="ow">not</span> <span class="n">devname</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">ip4</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">ip6</span> <span class="ow">and</span> <span class="n">up</span><span class="p">:</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">_configured</span> <span class="o">=</span> <span class="bp">True</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">load_configuration</span><span class="p">(</span><span class="n">dn</span><span class="p">,</span> <span class="n">mc</span><span class="p">,</span> <span class="n">i4</span><span class="p">,</span> <span class="n">msk4</span><span class="p">,</span> <span class="n">i6</span><span class="p">,</span> <span class="n">msk6</span><span class="p">,</span> <span class="n">mu</span><span class="p">,</span> <span class="n">up</span><span class="p">)</span>
+ <span class="k">break</span>
+
+ <span class="c"># If the user provided ipv4 or ipv6 matching that of an interface</span>
+ <span class="c"># load the interface info</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">ip4</span> <span class="ow">and</span> <span class="n">ip4</span> <span class="o">==</span> <span class="n">i4</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">ip6</span> <span class="ow">and</span> <span class="n">ip6</span> <span class="o">==</span> <span class="n">i6</span><span class="p">):</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">_configured</span> <span class="o">=</span> <span class="bp">True</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">load_configuration</span><span class="p">(</span><span class="n">dn</span><span class="p">,</span> <span class="n">mc</span><span class="p">,</span> <span class="n">i4</span><span class="p">,</span> <span class="n">msk4</span><span class="p">,</span> <span class="n">i6</span><span class="p">,</span> <span class="n">msk6</span><span class="p">,</span> <span class="n">mu</span><span class="p">,</span> <span class="n">up</span><span class="p">)</span>
+ <span class="k">break</span>
+
+ <span class="c"># If the user provided the device name we load the associated info</span>
+ <span class="k">if</span> <span class="n">devname</span> <span class="ow">and</span> <span class="n">devname</span> <span class="o">==</span> <span class="n">dn</span><span class="p">:</span>
+ <span class="k">if</span> <span class="p">((</span><span class="n">ip4</span> <span class="ow">and</span> <span class="n">ip4</span> <span class="o">==</span> <span class="n">i4</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">ipv6</span> <span class="ow">and</span> <span class="n">ip6</span> <span class="o">==</span> <span class="n">i6</span><span class="p">))</span> <span class="ow">or</span> \
+ <span class="ow">not</span> <span class="p">(</span><span class="n">ip4</span> <span class="ow">or</span> <span class="n">ip6</span><span class="p">):</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">_configured</span> <span class="o">=</span> <span class="bp">True</span>
+
+ <span class="c"># If the user gave a different ip than the existing, asume ip </span>
+ <span class="c"># needs to be changed</span>
+ <span class="n">i4</span> <span class="o">=</span> <span class="n">ip4</span> <span class="ow">or</span> <span class="n">i4</span>
+ <span class="n">i6</span> <span class="o">=</span> <span class="n">ip6</span> <span class="ow">or</span> <span class="n">i6</span>
+ <span class="n">mu</span> <span class="o">=</span> <span class="n">mtu</span> <span class="ow">or</span> <span class="n">mu</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">load_configuration</span><span class="p">(</span><span class="n">dn</span><span class="p">,</span> <span class="n">mc</span><span class="p">,</span> <span class="n">i4</span><span class="p">,</span> <span class="n">msk4</span><span class="p">,</span> <span class="n">i6</span><span class="p">,</span> <span class="n">msk6</span><span class="p">,</span> <span class="n">mu</span><span class="p">,</span> <span class="n">up</span><span class="p">)</span>
+ <span class="k">break</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">"deviceName"</span><span class="p">):</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Unable to resolve interface "</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="nb">super</span><span class="p">(</span><span class="n">LinuxInterface</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">do_discover</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="LinuxInterface.do_provision"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.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="n">devname</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">"deviceName"</span><span class="p">)</span>
+ <span class="n">ip4</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">"ip4"</span><span class="p">)</span>
+ <span class="n">ip6</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">"ip4"</span><span class="p">)</span>
+ <span class="n">mac</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">"mac"</span><span class="p">)</span>
+ <span class="n">mask4</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">"mask4"</span><span class="p">)</span>
+ <span class="n">mask6</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">"mask6"</span><span class="p">)</span>
+ <span class="n">mtu</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">"mtu"</span><span class="p">)</span>
+
+ <span class="c"># Must configure interface if configuration is required</span>
+ <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_configured</span><span class="p">:</span>
+ <span class="n">cmd</span> <span class="o">=</span> <span class="s">"ifconfig </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">devname</span>
+
+ <span class="k">if</span> <span class="n">ip4</span> <span class="ow">and</span> <span class="n">mask4</span><span class="p">:</span>
+ <span class="n">cmd</span> <span class="o">+=</span> <span class="s">" </span><span class="si">%(ip4)s</span><span class="s"> netmask </span><span class="si">%(mask4)s</span><span class="s"> broadcast </span><span class="si">%(bcast)s</span><span class="s"> up"</span> <span class="o">%</span> <span class="p">({</span>
+ <span class="s">'ip4'</span><span class="p">:</span> <span class="n">ip4</span><span class="p">,</span>
+ <span class="s">'mask4'</span><span class="p">:</span> <span class="n">mask4</span><span class="p">,</span>
+ <span class="s">'bcast'</span><span class="p">:</span> <span class="n">bcast</span><span class="p">})</span>
+ <span class="k">if</span> <span class="n">mtu</span><span class="p">:</span>
+ <span class="n">cmd</span> <span class="o">+=</span> <span class="s">" mtu </span><span class="si">%d</span><span class="s"> "</span> <span class="o">%</span> <span class="n">mtu</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">execute</span><span class="p">(</span><span class="n">cmd</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="k">if</span> <span class="n">err</span> <span class="ow">and</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">():</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Error configuring interface with command '</span><span class="si">%s</span><span class="s">'"</span> <span class="o">%</span> <span class="n">cmd</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="n">out</span><span class="p">,</span> <span class="n">err</span><span class="p">)</span>
+ <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="s">"</span><span class="si">%s</span><span class="s"> - </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="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>
+
+ <span class="k">if</span> <span class="n">ip6</span> <span class="ow">and</span> <span class="n">mask6</span><span class="p">:</span>
+ <span class="n">cmd</span> <span class="o">=</span> <span class="s">"ifconfig </span><span class="si">%(devname)s</span><span class="s"> inet6 add </span><span class="si">%(ip6)s</span><span class="s">/</span><span class="si">%(mask6)d</span><span class="s">"</span> <span class="o">%</span> <span class="p">({</span>
+ <span class="s">'devname'</span><span class="p">:</span> <span class="n">devname</span><span class="p">,</span>
+ <span class="s">'ip6'</span><span class="p">:</span> <span class="n">ip6</span><span class="p">,</span>
+ <span class="s">'mask6'</span><span class="p">:</span> <span class="n">mask6</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">execute</span><span class="p">(</span><span class="n">cmd</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="k">if</span> <span class="n">err</span> <span class="ow">and</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">():</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Error seting ipv6 for interface using command '</span><span class="si">%s</span><span class="s">' "</span> <span class="o">%</span> <span class="n">cmd</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="n">out</span><span class="p">,</span> <span class="n">err</span><span class="p">)</span>
+ <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="s">"</span><span class="si">%s</span><span class="s"> - </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="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>
+
+ <span class="nb">super</span><span class="p">(</span><span class="n">LinuxInterface</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">do_provision</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="LinuxInterface.do_deploy"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.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="c"># Wait until node is provisioned</span>
+ <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span>
+ <span class="n">chan</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">channel</span>
+
+ <span class="k">if</span> <span class="ow">not</span> <span class="n">node</span> <span class="ow">or</span> <span class="n">node</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">PROVISIONED</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">elif</span> <span class="ow">not</span> <span class="n">chan</span> <span class="ow">or</span> <span class="n">chan</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">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="c"># Verify if the interface exists in node. If not, configue</span>
+ <span class="c"># if yes, load existing configuration</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="nb">super</span><span class="p">(</span><span class="n">LinuxInterface</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">do_deploy</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="LinuxInterface.do_release"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.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="n">tear_down</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">"tearDown"</span><span class="p">)</span>
+ <span class="k">if</span> <span class="n">tear_down</span><span class="p">:</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span><span class="n">tear_down</span><span class="p">)</span>
+
+ <span class="nb">super</span><span class="p">(</span><span class="n">LinuxInterface</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>
+</div>
+<div class="viewcode-block" id="LinuxInterface.valid_connection"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.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="c"># TODO: Validate!</span>
+ <span class="k">return</span> <span class="bp">True</span>
+</div>
+<div class="viewcode-block" id="LinuxInterface.load_configuration"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.load_configuration">[docs]</a> <span class="k">def</span> <span class="nf">load_configuration</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">devname</span><span class="p">,</span> <span class="n">mac</span><span class="p">,</span> <span class="n">ip4</span><span class="p">,</span> <span class="n">mask4</span><span class="p">,</span> <span class="n">ip6</span><span class="p">,</span> <span class="n">mask6</span><span class="p">,</span> <span class="n">mtu</span><span class="p">,</span> <span class="n">up</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">"deviceName"</span><span class="p">,</span> <span class="n">devname</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">"mac"</span><span class="p">,</span> <span class="n">mac</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">"ip4"</span><span class="p">,</span> <span class="n">ip4</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">"mask4"</span><span class="p">,</span> <span class="n">mask4</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">"ip6"</span><span class="p">,</span> <span class="n">ip6</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">"mask6"</span><span class="p">,</span> <span class="n">mask6</span><span class="p">)</span>
+
+ <span class="c"># set the following without validating or triggering hooks</span>
+ <span class="n">attr</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_attrs</span><span class="p">[</span><span class="s">"up"</span><span class="p">]</span>
+ <span class="n">attr</span><span class="o">.</span><span class="n">_value</span> <span class="o">=</span> <span class="n">up</span>
+ <span class="n">attr</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_attrs</span><span class="p">[</span><span class="s">"mtu"</span><span class="p">]</span>
+ <span class="n">attr</span><span class="o">.</span><span class="n">_value</span> <span class="o">=</span> <span class="n">mtu</span>
+</div>
+<div class="viewcode-block" id="LinuxInterface.add_set_hooks"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.add_set_hooks">[docs]</a> <span class="k">def</span> <span class="nf">add_set_hooks</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+ <span class="n">attrup</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_attrs</span><span class="p">[</span><span class="s">"up"</span><span class="p">]</span>
+ <span class="n">attrup</span><span class="o">.</span><span class="n">set_hook</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_hook_up</span>
+
+ <span class="n">attrmtu</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_attrs</span><span class="p">[</span><span class="s">"mtu"</span><span class="p">]</span>
+ <span class="n">attrmtu</span><span class="o">.</span><span class="n">set_hook</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_hook_mtu</span>
+</div>
+<div class="viewcode-block" id="LinuxInterface.set_hook_up"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.set_hook_up">[docs]</a> <span class="k">def</span> <span class="nf">set_hook_up</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">oldval</span><span class="p">,</span> <span class="n">newval</span><span class="p">):</span>
+ <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">NEW</span> <span class="ow">or</span> <span class="n">oldval</span> <span class="o">==</span> <span class="n">newval</span><span class="p">:</span>
+ <span class="k">return</span> <span class="n">oldval</span>
+
+ <span class="c"># configure interface up</span>
+ <span class="k">if</span> <span class="n">newval</span> <span class="o">==</span> <span class="bp">True</span><span class="p">:</span>
+ <span class="n">cmd</span> <span class="o">=</span> <span class="s">"ifup </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">"deviceName"</span><span class="p">)</span>
+ <span class="k">elif</span> <span class="n">newval</span> <span class="o">==</span> <span class="bp">False</span><span class="p">:</span>
+ <span class="n">cmd</span> <span class="o">=</span> <span class="s">"ifdown </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">"deviceName"</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">execute</span><span class="p">(</span><span class="n">cmd</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="k">if</span> <span class="n">err</span> <span class="ow">and</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">():</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Error setting interface up/down using command '</span><span class="si">%s</span><span class="s">' "</span> <span class="o">%</span> <span class="n">cmd</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="n">err</span><span class="p">,</span> <span class="n">out</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">oldval</span>
+
+ <span class="k">return</span> <span class="n">newval</span>
+</div>
+<div class="viewcode-block" id="LinuxInterface.set_hook_mtu"><a class="viewcode-back" href="../../../../_layout/nepi.resources.linux.html#nepi.resources.linux.interface.LinuxInterface.set_hook_mtu">[docs]</a> <span class="k">def</span> <span class="nf">set_hook_mtu</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">oldval</span><span class="p">,</span> <span class="n">newval</span><span class="p">):</span>
+ <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">NEW</span> <span class="ow">or</span> <span class="n">oldval</span> <span class="o">==</span> <span class="n">newval</span><span class="p">:</span>
+ <span class="k">return</span> <span class="n">oldval</span>
+
+ <span class="n">cmd</span> <span class="o">=</span> <span class="s">"ifconfig </span><span class="si">%s</span><span class="s"> mtu </span><span class="si">%d</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">"deviceName"</span><span class="p">),</span> <span class="n">newval</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">execute</span><span class="p">(</span><span class="n">cmd</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="k">if</span> <span class="n">err</span> <span class="ow">and</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">():</span>
+ <span class="n">msg</span> <span class="o">=</span> <span class="s">"Error setting interface MTU using command '</span><span class="si">%s</span><span class="s">' "</span> <span class="o">%</span> <span class="n">cmd</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="n">err</span><span class="p">,</span> <span class="n">out</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">oldval</span>
+
+ <span class="k">return</span> <span class="n">newval</span>
+</pre></div></div></div>
+
+ </div>
+ </div>
+ </div>
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