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  66   <h1>Source code for nepi.resources.linux.ccn.fibentry</h1><div class="highlight"><pre>
  67 <span class="c">#</span>
  68 <span class="c">#    NEPI, a framework to manage network experiments</span>
  69 <span class="c">#    Copyright (C) 2013 INRIA</span>
  70 <span class="c">#</span>
  71 <span class="c">#    This program is free software: you can redistribute it and/or modify</span>
  72 <span class="c">#    it under the terms of the GNU General Public License version 2 as</span>
  73 <span class="c">#    published by the Free Software Foundation;</span>
  74 <span class="c">#</span>
  75 <span class="c">#    This program is distributed in the hope that it will be useful,</span>
  76 <span class="c">#    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
  77 <span class="c">#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
  78 <span class="c">#    GNU General Public License for more details.</span>
  79 <span class="c">#</span>
  80 <span class="c">#    You should have received a copy of the GNU General Public License</span>
  81 <span class="c">#    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
  82 <span class="c">#</span>
  83 <span class="c"># Author: Alina Quereilhac &lt;alina.quereilhac@inria.fr&gt;</span>
  84
  85 <span class="kn">from</span> <span class="nn">nepi.execution.attribute</span> <span class="kn">import</span> <span class="n">Attribute</span><span class="p">,</span> <span class="n">Flags</span><span class="p">,</span> <span class="n">Types</span>
  86 <span class="kn">from</span> <span class="nn">nepi.execution.trace</span> <span class="kn">import</span> <span class="n">Trace</span><span class="p">,</span> <span class="n">TraceAttr</span>
  87 <span class="kn">from</span> <span class="nn">nepi.execution.resource</span> <span class="kn">import</span> <span class="n">clsinit_copy</span><span class="p">,</span> <span class="n">ResourceState</span><span class="p">,</span> \
  88     <span class="n">ResourceAction</span>
  89 <span class="kn">from</span> <span class="nn">nepi.resources.linux.application</span> <span class="kn">import</span> <span class="n">LinuxApplication</span>
  90 <span class="kn">from</span> <span class="nn">nepi.resources.linux.ccn.ccnd</span> <span class="kn">import</span> <span class="n">LinuxCCND</span>
  91 <span class="kn">from</span> <span class="nn">nepi.util.timefuncs</span> <span class="kn">import</span> <span class="n">tnow</span>
  92
  93 <span class="kn">import</span> <span class="nn">os</span>
  94 <span class="kn">import</span> <span class="nn">socket</span>
  95 <span class="kn">import</span> <span class="nn">time</span>
  96
  97
  98 <span class="c"># TODO: Add rest of options for ccndc!!!</span>
  99 <span class="c">#       Implement ENTRY DELETE!!</span>
 100
 101 <span class="nd">@clsinit_copy</span>
 102 <div class="viewcode-block" id="LinuxFIBEntry"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry">[docs]</a><span class="k">class</span> <span class="nc">LinuxFIBEntry</span><span class="p">(</span><span class="n">LinuxApplication</span><span class="p">):</span>
 103     <span class="n">_rtype</span> <span class="o">=</span> <span class="s">&quot;linux::FIBEntry&quot;</span>
 104
 105     <span class="nd">@classmethod</span>
 106     <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
 107         <span class="n">uri</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;uri&quot;</span><span class="p">,</span>
 108                 <span class="s">&quot;URI prefix to match and route for this FIB entry&quot;</span><span class="p">,</span>
 109                 <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;ccnx:/&quot;</span><span class="p">,</span>
 110                 <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>
 111
 112         <span class="n">protocol</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;protocol&quot;</span><span class="p">,</span>
 113                 <span class="s">&quot;Transport protocol used in network connection to peer &quot;</span>
 114                 <span class="s">&quot;for this FIB entry. One of &#39;udp&#39; or &#39;tcp&#39;.&quot;</span><span class="p">,</span>
 115                 <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">Enumerate</span><span class="p">,</span>
 116                 <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;udp&quot;</span><span class="p">,</span>
 117                 <span class="n">allowed</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;udp&quot;</span><span class="p">,</span> <span class="s">&quot;tcp&quot;</span><span class="p">],</span>
 118                 <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>
 119
 120         <span class="n">host</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;host&quot;</span><span class="p">,</span>
 121                 <span class="s">&quot;Peer hostname used in network connection for this FIB entry. &quot;</span><span class="p">,</span>
 122                 <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>
 123
 124         <span class="n">port</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;port&quot;</span><span class="p">,</span>
 125                 <span class="s">&quot;Peer port address used in network connection to peer &quot;</span>
 126                 <span class="s">&quot;for this FIB entry.&quot;</span><span class="p">,</span>
 127                 <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>
 128
 129         <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>
 130                 <span class="s">&quot;Peer host public IP used in network connection for this FIB entry. &quot;</span><span class="p">,</span>
 131                 <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>
 132
 133         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span>
 134         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">protocol</span><span class="p">)</span>
 135         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">host</span><span class="p">)</span>
 136         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">port</span><span class="p">)</span>
 137         <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>
 138
 139     <span class="nd">@classmethod</span>
 140     <span class="k">def</span> <span class="nf">_register_traces</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
 141         <span class="n">ping</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;ping&quot;</span><span class="p">,</span> <span class="s">&quot;Ping to the peer end&quot;</span><span class="p">)</span>
 142         <span class="n">mtr</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;mtr&quot;</span><span class="p">,</span> <span class="s">&quot;Mtr to the peer end&quot;</span><span class="p">)</span>
 143         <span class="n">traceroute</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;traceroute&quot;</span><span class="p">,</span> <span class="s">&quot;Tracerout to the peer end&quot;</span><span class="p">)</span>
 144
 145         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">ping</span><span class="p">)</span>
 146         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">mtr</span><span class="p">)</span>
 147         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">traceroute</span><span class="p">)</span>
 148
 149     <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>
 150         <span class="nb">super</span><span class="p">(</span><span class="n">LinuxFIBEntry</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>
 151         <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">&quot;fib-</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>
 152         <span class="bp">self</span><span class="o">.</span><span class="n">_ping</span> <span class="o">=</span> <span class="bp">None</span>
 153         <span class="bp">self</span><span class="o">.</span><span class="n">_traceroute</span> <span class="o">=</span> <span class="bp">None</span>
 154         <span class="bp">self</span><span class="o">.</span><span class="n">_ccnd</span> <span class="o">=</span> <span class="bp">None</span>
 155
 156     <span class="nd">@property</span>
 157 <div class="viewcode-block" id="LinuxFIBEntry.ccnd"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.ccnd">[docs]</a>    <span class="k">def</span> <span class="nf">ccnd</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 158         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ccnd</span><span class="p">:</span>
 159             <span class="n">ccnd</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">LinuxCCND</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 160             <span class="k">if</span> <span class="n">ccnd</span><span class="p">:</span>
 161                 <span class="bp">self</span><span class="o">.</span><span class="n">_ccnd</span> <span class="o">=</span> <span class="n">ccnd</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 162
 163         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ccnd</span>
 164 </div>
 165     <span class="nd">@property</span>
 166 <div class="viewcode-block" id="LinuxFIBEntry.ping"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.ping">[docs]</a>    <span class="k">def</span> <span class="nf">ping</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 167         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ping</span><span class="p">:</span>
 168             <span class="kn">from</span> <span class="nn">nepi.resources.linux.ping</span> <span class="kn">import</span> <span class="n">LinuxPing</span>
 169             <span class="n">ping</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">LinuxPing</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 170             <span class="k">if</span> <span class="n">ping</span><span class="p">:</span>
 171                 <span class="bp">self</span><span class="o">.</span><span class="n">_ping</span> <span class="o">=</span> <span class="n">ping</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 172
 173         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ping</span>
 174 </div>
 175     <span class="nd">@property</span>
 176 <div class="viewcode-block" id="LinuxFIBEntry.traceroute"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.traceroute">[docs]</a>    <span class="k">def</span> <span class="nf">traceroute</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 177         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_traceroute</span><span class="p">:</span>
 178             <span class="kn">from</span> <span class="nn">nepi.resources.linux.traceroute</span> <span class="kn">import</span> <span class="n">LinuxTraceroute</span>
 179             <span class="n">traceroute</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">LinuxTraceroute</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 180             <span class="k">if</span> <span class="n">traceroute</span><span class="p">:</span>
 181                 <span class="bp">self</span><span class="o">.</span><span class="n">_traceroute</span> <span class="o">=</span> <span class="n">traceroute</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 182
 183         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_traceroute</span>
 184 </div>
 185     <span class="nd">@property</span>
 186 <div class="viewcode-block" id="LinuxFIBEntry.node"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.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>
 187         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">ccnd</span><span class="p">:</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">ccnd</span><span class="o">.</span><span class="n">node</span>
 188         <span class="k">return</span> <span class="bp">None</span>
 189 </div>
 190 <div class="viewcode-block" id="LinuxFIBEntry.trace"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.trace">[docs]</a>    <span class="k">def</span> <span class="nf">trace</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">attr</span> <span class="o">=</span> <span class="n">TraceAttr</span><span class="o">.</span><span class="n">ALL</span><span class="p">,</span> <span class="n">block</span> <span class="o">=</span> <span class="mi">512</span><span class="p">,</span> <span class="n">offset</span> <span class="o">=</span> <span class="mi">0</span><span class="p">):</span>
 191         <span class="k">if</span> <span class="n">name</span> <span class="o">==</span> <span class="s">&quot;ping&quot;</span><span class="p">:</span>
 192             <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ping</span><span class="p">:</span>
 193                 <span class="k">return</span> <span class="bp">None</span>
 194             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">trace</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ping</span><span class="o">.</span><span class="n">guid</span><span class="p">,</span> <span class="s">&quot;stdout&quot;</span><span class="p">,</span> <span class="n">attr</span><span class="p">,</span> <span class="n">block</span><span class="p">,</span> <span class="n">offset</span><span class="p">)</span>
 195
 196         <span class="k">if</span> <span class="n">name</span> <span class="o">==</span> <span class="s">&quot;traceroute&quot;</span><span class="p">:</span>
 197             <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">traceroute</span><span class="p">:</span>
 198                 <span class="k">return</span> <span class="bp">None</span>
 199             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">trace</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">traceroute</span><span class="o">.</span><span class="n">guid</span><span class="p">,</span> <span class="s">&quot;stdout&quot;</span><span class="p">,</span> <span class="n">attr</span><span class="p">,</span> <span class="n">block</span><span class="p">,</span> <span class="n">offset</span><span class="p">)</span>
 200
 201         <span class="k">return</span> <span class="nb">super</span><span class="p">(</span><span class="n">LinuxFIBEntry</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">trace</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">attr</span><span class="p">,</span> <span class="n">block</span><span class="p">,</span> <span class="n">offset</span><span class="p">)</span>
 202     </div>
 203 <div class="viewcode-block" id="LinuxFIBEntry.do_deploy"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.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>
 204         <span class="c"># Wait until associated ccnd is provisioned</span>
 205         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ccnd</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">ccnd</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>
 206             <span class="c"># ccnr needs to wait until ccnd is deployed and running</span>
 207             <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>
 208         <span class="k">else</span><span class="p">:</span>
 209             <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;ip&quot;</span><span class="p">):</span>
 210                 <span class="n">host</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;host&quot;</span><span class="p">)</span>
 211                 <span class="n">ip</span> <span class="o">=</span> <span class="n">socket</span><span class="o">.</span><span class="n">gethostbyname</span><span class="p">(</span><span class="n">host</span><span class="p">)</span>
 212                 <span class="bp">self</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;ip&quot;</span><span class="p">,</span> <span class="n">ip</span><span class="p">)</span>
 213
 214             <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">):</span>
 215                 <span class="bp">self</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_start_command</span><span class="p">)</span>
 216
 217             <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;env&quot;</span><span class="p">):</span>
 218                 <span class="bp">self</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s">&quot;env&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_environment</span><span class="p">)</span>
 219
 220             <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">)</span>
 221
 222             <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Deploying command &#39;</span><span class="si">%s</span><span class="s">&#39; &quot;</span> <span class="o">%</span> <span class="n">command</span><span class="p">)</span>
 223
 224             <span class="bp">self</span><span class="o">.</span><span class="n">do_discover</span><span class="p">()</span>
 225             <span class="bp">self</span><span class="o">.</span><span class="n">do_provision</span><span class="p">()</span>
 226             <span class="bp">self</span><span class="o">.</span><span class="n">configure</span><span class="p">()</span>
 227
 228             <span class="bp">self</span><span class="o">.</span><span class="n">set_ready</span><span class="p">()</span>
 229 </div>
 230 <div class="viewcode-block" id="LinuxFIBEntry.upload_start_command"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.upload_start_command">[docs]</a>    <span class="k">def</span> <span class="nf">upload_start_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 231         <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">)</span>
 232         <span class="n">env</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;env&quot;</span><span class="p">)</span>
 233
 234         <span class="c"># We want to make sure the FIB entries are created</span>
 235         <span class="c"># before the experiment starts.</span>
 236         <span class="c"># Run the command as a bash script in the background, </span>
 237         <span class="c"># in the host ( but wait until the command has</span>
 238         <span class="c"># finished to continue )</span>
 239         <span class="n">env</span> <span class="o">=</span> <span class="n">env</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">replace_paths</span><span class="p">(</span><span class="n">env</span><span class="p">)</span>
 240         <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>
 241
 242         <span class="c"># ccndc seems to return exitcode OK even if a (dns) error</span>
 243         <span class="c"># occurred, so we need to account for this case here. </span>
 244         <span class="p">(</span><span class="n">out</span><span class="p">,</span> <span class="n">err</span><span class="p">),</span> <span class="n">proc</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">execute_command</span><span class="p">(</span><span class="n">command</span><span class="p">,</span>
 245                 <span class="n">env</span><span class="p">,</span> <span class="n">blocking</span> <span class="o">=</span> <span class="bp">True</span><span class="p">)</span>
 246
 247         <span class="k">if</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">():</span>
 248             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Failed to execute command&quot;</span>
 249             <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>
 250             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 251         </div>
 252 <div class="viewcode-block" id="LinuxFIBEntry.configure"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.configure">[docs]</a>    <span class="k">def</span> <span class="nf">configure</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 253         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">trace_enabled</span><span class="p">(</span><span class="s">&quot;ping&quot;</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ping</span><span class="p">:</span>
 254             <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Configuring PING trace&quot;</span><span class="p">)</span>
 255             <span class="n">ping</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;linux::Ping&quot;</span><span class="p">)</span>
 256             <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="n">ping</span><span class="p">,</span> <span class="s">&quot;printTimestamp&quot;</span><span class="p">,</span> <span class="bp">True</span><span class="p">)</span>
 257             <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="n">ping</span><span class="p">,</span> <span class="s">&quot;target&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;host&quot;</span><span class="p">))</span>
 258             <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="n">ping</span><span class="p">,</span> <span class="s">&quot;earlyStart&quot;</span><span class="p">,</span> <span class="bp">True</span><span class="p">)</span>
 259             <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="n">ping</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">guid</span><span class="p">)</span>
 260             <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="n">ping</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">guid</span><span class="p">)</span>
 261             <span class="c"># schedule ping deploy</span>
 262             <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="n">ping</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>
 263
 264         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">trace_enabled</span><span class="p">(</span><span class="s">&quot;traceroute&quot;</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">traceroute</span><span class="p">:</span>
 265             <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Configuring TRACEROUTE trace&quot;</span><span class="p">)</span>
 266             <span class="n">traceroute</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;linux::Traceroute&quot;</span><span class="p">)</span>
 267             <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="n">traceroute</span><span class="p">,</span> <span class="s">&quot;printTimestamp&quot;</span><span class="p">,</span> <span class="bp">True</span><span class="p">)</span>
 268             <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="n">traceroute</span><span class="p">,</span> <span class="s">&quot;continuous&quot;</span><span class="p">,</span> <span class="bp">True</span><span class="p">)</span>
 269             <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="n">traceroute</span><span class="p">,</span> <span class="s">&quot;target&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;host&quot;</span><span class="p">))</span>
 270             <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="n">traceroute</span><span class="p">,</span> <span class="s">&quot;earlyStart&quot;</span><span class="p">,</span> <span class="bp">True</span><span class="p">)</span>
 271             <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="n">traceroute</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">guid</span><span class="p">)</span>
 272             <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="n">traceroute</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">guid</span><span class="p">)</span>
 273             <span class="c"># schedule mtr deploy</span>
 274             <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="n">traceroute</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>
 275 </div>
 276 <div class="viewcode-block" id="LinuxFIBEntry.do_start"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.do_start">[docs]</a>    <span class="k">def</span> <span class="nf">do_start</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 277         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">READY</span><span class="p">:</span>
 278             <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;command&quot;</span><span class="p">)</span>
 279             <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Starting command &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="n">command</span><span class="p">)</span>
 280
 281             <span class="bp">self</span><span class="o">.</span><span class="n">set_started</span><span class="p">()</span>
 282         <span class="k">else</span><span class="p">:</span>
 283             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot; Failed to execute command &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="n">command</span>
 284             <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>
 285             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 286 </div>
 287 <div class="viewcode-block" id="LinuxFIBEntry.do_stop"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.do_stop">[docs]</a>    <span class="k">def</span> <span class="nf">do_stop</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 288         <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;command&#39;</span><span class="p">)</span>
 289         <span class="n">env</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;env&#39;</span><span class="p">)</span>
 290
 291         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">STARTED</span><span class="p">:</span>
 292             <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Stopping command &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="n">command</span><span class="p">)</span>
 293
 294             <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_stop_command</span>
 295             <span class="p">(</span><span class="n">out</span><span class="p">,</span> <span class="n">err</span><span class="p">),</span> <span class="n">proc</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">execute_command</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="n">env</span><span class="p">,</span>
 296                     <span class="n">blocking</span> <span class="o">=</span> <span class="bp">True</span><span class="p">)</span>
 297
 298             <span class="bp">self</span><span class="o">.</span><span class="n">set_stopped</span><span class="p">()</span>
 299
 300             <span class="k">if</span> <span class="n">err</span><span class="p">:</span>
 301                 <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot; Failed to execute command &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="n">command</span>
 302                 <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>
 303                 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 304 </div>
 305     <span class="nd">@property</span>
 306     <span class="k">def</span> <span class="nf">_start_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 307         <span class="n">uri</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;uri&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 308         <span class="n">protocol</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;protocol&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 309         <span class="n">ip</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;ip&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 310         <span class="n">port</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;port&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 311
 312         <span class="c"># add ccnx:/example.com/ udp 224.0.0.204 52428</span>
 313         <span class="k">return</span> <span class="s">&quot;ccndc add </span><span class="si">%(uri)s</span><span class="s"> </span><span class="si">%(protocol)s</span><span class="s"> </span><span class="si">%(host)s</span><span class="s"> </span><span class="si">%(port)s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">({</span>
 314             <span class="s">&quot;uri&quot;</span> <span class="p">:</span> <span class="n">uri</span><span class="p">,</span>
 315             <span class="s">&quot;protocol&quot;</span><span class="p">:</span> <span class="n">protocol</span><span class="p">,</span>
 316             <span class="s">&quot;host&quot;</span><span class="p">:</span> <span class="n">ip</span><span class="p">,</span>
 317             <span class="s">&quot;port&quot;</span><span class="p">:</span> <span class="n">port</span>
 318             <span class="p">})</span>
 319
 320     <span class="nd">@property</span>
 321     <span class="k">def</span> <span class="nf">_stop_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 322         <span class="n">uri</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;uri&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 323         <span class="n">protocol</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;protocol&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 324         <span class="n">ip</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;ip&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 325         <span class="n">port</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;port&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
 326
 327         <span class="c"># add ccnx:/example.com/ udp 224.0.0.204 52428</span>
 328         <span class="k">return</span> <span class="s">&quot;ccndc del </span><span class="si">%(uri)s</span><span class="s"> </span><span class="si">%(protocol)s</span><span class="s"> </span><span class="si">%(host)s</span><span class="s"> </span><span class="si">%(port)s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">({</span>
 329             <span class="s">&quot;uri&quot;</span> <span class="p">:</span> <span class="n">uri</span><span class="p">,</span>
 330             <span class="s">&quot;protocol&quot;</span><span class="p">:</span> <span class="n">protocol</span><span class="p">,</span>
 331             <span class="s">&quot;host&quot;</span><span class="p">:</span> <span class="n">ip</span><span class="p">,</span>
 332             <span class="s">&quot;port&quot;</span><span class="p">:</span> <span class="n">port</span>
 333             <span class="p">})</span>
 334
 335     <span class="nd">@property</span>
 336     <span class="k">def</span> <span class="nf">_environment</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 337         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">ccnd</span><span class="o">.</span><span class="n">path</span>
 338
 339 <div class="viewcode-block" id="LinuxFIBEntry.valid_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.fibentry.LinuxFIBEntry.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>
 340         <span class="c"># TODO: Validate!</span>
 341         <span class="k">return</span> <span class="bp">True</span>
 342 </pre></div></div></div>
 343
 344           </div>
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