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  66   <h1>Source code for nepi.resources.ns3.classes.ipv4l3protocol</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) 2014 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
  84 <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>
  85 <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>
  86 <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> \
  87         <span class="n">ResourceState</span>
  88 <span class="kn">from</span> <span class="nn">nepi.resources.ns3.ns3ipv4l3protocol</span> <span class="kn">import</span> <span class="n">NS3BaseIpv4L3Protocol</span>
  89
  90 <span class="nd">@clsinit_copy</span>
  91 <div class="viewcode-block" id="NS3Ipv4L3Protocol"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.ns3.classes.html#nepi.resources.ns3.classes.ipv4l3protocol.NS3Ipv4L3Protocol">[docs]</a><span class="k">class</span> <span class="nc">NS3Ipv4L3Protocol</span><span class="p">(</span><span class="n">NS3BaseIpv4L3Protocol</span><span class="p">):</span>
  92     <span class="n">_rtype</span> <span class="o">=</span> <span class="s">&quot;ns3::Ipv4L3Protocol&quot;</span>
  93
  94     <span class="nd">@classmethod</span>
  95     <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
  96
  97         <span class="n">attr_defaulttos</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;DefaultTos&quot;</span><span class="p">,</span>
  98             <span class="s">&quot;The TOS value set by default on all outgoing packets generated on this node.&quot;</span><span class="p">,</span>
  99             <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>
 100             <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;0&quot;</span><span class="p">,</span>
 101             <span class="n">allowed</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 102             <span class="nb">range</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 103             <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Reserved</span> <span class="o">|</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Construct</span><span class="p">)</span>
 104
 105         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">attr_defaulttos</span><span class="p">)</span>
 106
 107         <span class="n">attr_defaultttl</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;DefaultTtl&quot;</span><span class="p">,</span>
 108             <span class="s">&quot;The TTL value set by default on all outgoing packets generated on this node.&quot;</span><span class="p">,</span>
 109             <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>
 110             <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;64&quot;</span><span class="p">,</span>
 111             <span class="n">allowed</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 112             <span class="nb">range</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 113             <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Reserved</span> <span class="o">|</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Construct</span><span class="p">)</span>
 114
 115         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">attr_defaultttl</span><span class="p">)</span>
 116
 117         <span class="n">attr_fragmentexpirationtimeout</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;FragmentExpirationTimeout&quot;</span><span class="p">,</span>
 118             <span class="s">&quot;When this timeout expires, the fragments will be cleared from the buffer.&quot;</span><span class="p">,</span>
 119             <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">String</span><span class="p">,</span>
 120             <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;+30000000000.0ns&quot;</span><span class="p">,</span>
 121             <span class="n">allowed</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 122             <span class="nb">range</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 123             <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Reserved</span> <span class="o">|</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Construct</span><span class="p">)</span>
 124
 125         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">attr_fragmentexpirationtimeout</span><span class="p">)</span>
 126
 127         <span class="n">attr_ipforward</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;IpForward&quot;</span><span class="p">,</span>
 128             <span class="s">&quot;Globally enable or disable IP forwarding for all current and future Ipv4 devices.&quot;</span><span class="p">,</span>
 129             <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>
 130             <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;True&quot;</span><span class="p">,</span>
 131             <span class="n">allowed</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 132             <span class="nb">range</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 133             <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Reserved</span> <span class="o">|</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Construct</span><span class="p">)</span>
 134
 135         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">attr_ipforward</span><span class="p">)</span>
 136
 137         <span class="n">attr_weakesmodel</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;WeakEsModel&quot;</span><span class="p">,</span>
 138             <span class="s">&quot;RFC1122 term for whether host accepts datagram with a dest. address on another interface&quot;</span><span class="p">,</span>
 139             <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>
 140             <span class="n">default</span> <span class="o">=</span> <span class="s">&quot;True&quot;</span><span class="p">,</span>
 141             <span class="n">allowed</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 142             <span class="nb">range</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
 143             <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Reserved</span> <span class="o">|</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Construct</span><span class="p">)</span>
 144
 145         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">attr_weakesmodel</span><span class="p">)</span>
 146
 147
 148
 149     <span class="nd">@classmethod</span>
 150     <span class="k">def</span> <span class="nf">_register_traces</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
 151
 152         <span class="n">tx</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;Tx&quot;</span><span class="p">,</span> <span class="s">&quot;Send ipv4 packet to outgoing interface.&quot;</span><span class="p">)</span>
 153
 154         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">tx</span><span class="p">)</span>
 155
 156         <span class="n">rx</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;Rx&quot;</span><span class="p">,</span> <span class="s">&quot;Receive ipv4 packet from incoming interface.&quot;</span><span class="p">)</span>
 157
 158         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">rx</span><span class="p">)</span>
 159
 160         <span class="n">drop</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;Drop&quot;</span><span class="p">,</span> <span class="s">&quot;Drop ipv4 packet&quot;</span><span class="p">)</span>
 161
 162         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">drop</span><span class="p">)</span>
 163
 164         <span class="n">sendoutgoing</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;SendOutgoing&quot;</span><span class="p">,</span> <span class="s">&quot;A newly-generated packet by this node is about to be queued for transmission&quot;</span><span class="p">)</span>
 165
 166         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">sendoutgoing</span><span class="p">)</span>
 167
 168         <span class="n">unicastforward</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;UnicastForward&quot;</span><span class="p">,</span> <span class="s">&quot;A unicast IPv4 packet was received by this node and is being forwarded to another node&quot;</span><span class="p">)</span>
 169
 170         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">unicastforward</span><span class="p">)</span>
 171
 172         <span class="n">localdeliver</span> <span class="o">=</span> <span class="n">Trace</span><span class="p">(</span><span class="s">&quot;LocalDeliver&quot;</span><span class="p">,</span> <span class="s">&quot;An IPv4 packet was received by/for this node, and it is being forward up the stack&quot;</span><span class="p">)</span>
 173
 174         <span class="n">cls</span><span class="o">.</span><span class="n">_register_trace</span><span class="p">(</span><span class="n">localdeliver</span><span class="p">)</span>
 175
 176
 177
 178     <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>
 179         <span class="nb">super</span><span class="p">(</span><span class="n">NS3Ipv4L3Protocol</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>
 180         <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">&quot;ns3-ipv4l3protocol-</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></div>
 181 </pre></div>
 182
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