1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
2 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
5 <html xmlns="http://www.w3.org/1999/xhtml">
7 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
9 <title>nepi.resources.linux.ns3.fdudptunnel — NEPI 3.2 documentation</title>
11 <link rel="stylesheet" href="../../../../../_static/sphinxdoc.css" type="text/css" />
12 <link rel="stylesheet" href="../../../../../_static/pygments.css" type="text/css" />
14 <script type="text/javascript">
15 var DOCUMENTATION_OPTIONS = {
16 URL_ROOT: '../../../../../',
18 COLLAPSE_INDEX: false,
23 <script type="text/javascript" src="../../../../../_static/jquery.js"></script>
24 <script type="text/javascript" src="../../../../../_static/underscore.js"></script>
25 <script type="text/javascript" src="../../../../../_static/doctools.js"></script>
26 <link rel="top" title="NEPI 3.2 documentation" href="../../../../../index.html" />
27 <link rel="up" title="Module code" href="../../../../index.html" />
33 <li class="right" style="margin-right: 10px">
34 <a href="../../../../../genindex.html" title="General Index"
35 accesskey="I">index</a></li>
37 <a href="../../../../../py-modindex.html" title="Python Module Index"
39 <li><a href="../../../../../index.html">NEPI 3.2 documentation</a> »</li>
40 <li><a href="../../../../index.html" accesskey="U">Module code</a> »</li>
43 <div class="sphinxsidebar">
44 <div class="sphinxsidebarwrapper">
45 <div id="searchbox" style="display: none">
47 <form class="search" action="../../../../../search.html" method="get">
48 <input type="text" name="q" />
49 <input type="submit" value="Go" />
50 <input type="hidden" name="check_keywords" value="yes" />
51 <input type="hidden" name="area" value="default" />
53 <p class="searchtip" style="font-size: 90%">
54 Enter search terms or a module, class or function name.
57 <script type="text/javascript">$('#searchbox').show(0);</script>
61 <div class="document">
62 <div class="documentwrapper">
63 <div class="bodywrapper">
66 <h1>Source code for nepi.resources.linux.ns3.fdudptunnel</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 <http://www.gnu.org/licenses/>.</span>
82 <span class="c">#</span>
83 <span class="c"># Author: Alina Quereilhac <alina.quereilhac@inria.fr></span>
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.resource</span> <span class="kn">import</span> <span class="n">clsinit_copy</span><span class="p">,</span> <span class="n">ResourceState</span>
87 <span class="kn">from</span> <span class="nn">nepi.resources.linux.udptunnel</span> <span class="kn">import</span> <span class="n">LinuxUdpTunnel</span>
88 <span class="kn">from</span> <span class="nn">nepi.util.sshfuncs</span> <span class="kn">import</span> <span class="n">ProcStatus</span>
89 <span class="kn">from</span> <span class="nn">nepi.util.timefuncs</span> <span class="kn">import</span> <span class="n">tnow</span><span class="p">,</span> <span class="n">tdiffsec</span>
91 <span class="kn">import</span> <span class="nn">base64</span>
92 <span class="kn">import</span> <span class="nn">os</span>
93 <span class="kn">import</span> <span class="nn">socket</span>
94 <span class="kn">import</span> <span class="nn">time</span>
96 <span class="nd">@clsinit_copy</span>
97 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel">[docs]</a><span class="k">class</span> <span class="nc">LinuxNs3FdUdpTunnel</span><span class="p">(</span><span class="n">LinuxUdpTunnel</span><span class="p">):</span>
98 <span class="n">_rtype</span> <span class="o">=</span> <span class="s">"linux::ns3::FdUdpTunnel"</span>
99 <span class="n">_help</span> <span class="o">=</span> <span class="s">"Constructs a tunnel between two Ns-3 FdNetdevices "</span> \
100 <span class="s">"located in remote Linux nodes using a UDP connection "</span>
101 <span class="n">_platform</span> <span class="o">=</span> <span class="s">"linux::ns3"</span>
103 <span class="nd">@classmethod</span>
104 <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
105 <span class="n">cipher</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"cipher"</span><span class="p">,</span>
106 <span class="s">"Cipher to encript communication. "</span>
107 <span class="s">"One of PLAIN, AES, Blowfish, DES, DES3. "</span><span class="p">,</span>
108 <span class="n">default</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
109 <span class="n">allowed</span> <span class="o">=</span> <span class="p">[</span><span class="s">"PLAIN"</span><span class="p">,</span> <span class="s">"AES"</span><span class="p">,</span> <span class="s">"Blowfish"</span><span class="p">,</span> <span class="s">"DES"</span><span class="p">,</span> <span class="s">"DES3"</span><span class="p">],</span>
110 <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>
111 <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>
113 <span class="n">cipher_key</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"cipherKey"</span><span class="p">,</span>
114 <span class="s">"Specify a symmetric encryption key with which to protect "</span>
115 <span class="s">"packets across the tunnel. python-crypto must be installed "</span>
116 <span class="s">"on the system."</span> <span class="p">,</span>
117 <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 <span class="n">txqueuelen</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"txQueueLen"</span><span class="p">,</span>
120 <span class="s">"Specifies the interface's transmission queue length. "</span>
121 <span class="s">"Defaults to 1000. "</span><span class="p">,</span>
122 <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>
123 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
125 <span class="n">bwlimit</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"bwLimit"</span><span class="p">,</span>
126 <span class="s">"Specifies the interface's emulated bandwidth in bytes "</span>
127 <span class="s">"per second."</span><span class="p">,</span>
128 <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>
129 <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>
131 <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">cipher</span><span class="p">)</span>
132 <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">cipher_key</span><span class="p">)</span>
133 <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">txqueuelen</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">bwlimit</span><span class="p">)</span>
136 <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>
137 <span class="nb">super</span><span class="p">(</span><span class="n">LinuxUdpTunnel</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>
138 <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">"fd-udp-tunnel-</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">guid</span>
139 <span class="bp">self</span><span class="o">.</span><span class="n">_pids</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">()</span>
140 <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span> <span class="o">=</span> <span class="bp">None</span>
141 <span class="bp">self</span><span class="o">.</span><span class="n">_fd1node</span> <span class="o">=</span> <span class="bp">None</span>
142 <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span> <span class="o">=</span> <span class="bp">None</span>
143 <span class="bp">self</span><span class="o">.</span><span class="n">_fd2node</span> <span class="o">=</span> <span class="bp">None</span>
144 <span class="bp">self</span><span class="o">.</span><span class="n">_pi</span> <span class="o">=</span> <span class="bp">False</span>
146 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.log_message"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.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>
147 <span class="bp">self</span><span class="o">.</span><span class="n">get_endpoints</span><span class="p">()</span>
148 <span class="k">return</span> <span class="s">" guid </span><span class="si">%d</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="bp">self</span><span class="o">.</span><span class="n">guid</span><span class="p">,</span>
149 <span class="bp">self</span><span class="o">.</span><span class="n">node1</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"hostname"</span><span class="p">),</span>
150 <span class="bp">self</span><span class="o">.</span><span class="n">node2</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"hostname"</span><span class="p">),</span>
151 <span class="n">msg</span><span class="p">)</span>
153 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.get_endpoints"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.get_endpoints">[docs]</a> <span class="k">def</span> <span class="nf">get_endpoints</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
154 <span class="sd">""" Returns the list of RM that are endpoints to the tunnel </span>
155 <span class="sd"> """</span>
156 <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span> <span class="ow">or</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span><span class="p">:</span>
157 <span class="kn">from</span> <span class="nn">nepi.resources.ns3.ns3fdnetdevice</span> <span class="kn">import</span> <span class="n">NS3BaseFdNetDevice</span>
158 <span class="n">devices</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">NS3BaseFdNetDevice</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
159 <span class="k">if</span> <span class="ow">not</span> <span class="n">devices</span> <span class="ow">or</span> <span class="nb">len</span><span class="p">(</span><span class="n">devices</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">2</span><span class="p">:</span>
160 <span class="n">msg</span> <span class="o">=</span> <span class="s">"linux::ns3::TunTapFdLink must be connected to exactly one FdNetDevice"</span>
161 <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>
162 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
164 <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span> <span class="o">=</span> <span class="n">devices</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
165 <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span> <span class="o">=</span> <span class="n">devices</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
167 <span class="n">simu</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span><span class="o">.</span><span class="n">simulation</span>
168 <span class="kn">from</span> <span class="nn">nepi.resources.linux.node</span> <span class="kn">import</span> <span class="n">LinuxNode</span>
169 <span class="n">nodes</span> <span class="o">=</span> <span class="n">simu</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>
170 <span class="bp">self</span><span class="o">.</span><span class="n">_fd1node</span> <span class="o">=</span> <span class="n">nodes</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
172 <span class="n">simu</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span><span class="o">.</span><span class="n">simulation</span>
173 <span class="kn">from</span> <span class="nn">nepi.resources.linux.node</span> <span class="kn">import</span> <span class="n">LinuxNode</span>
174 <span class="n">nodes</span> <span class="o">=</span> <span class="n">simu</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>
175 <span class="bp">self</span><span class="o">.</span><span class="n">_fd2node</span> <span class="o">=</span> <span class="n">nodes</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
177 <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1node</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="o">==</span> \
178 <span class="bp">self</span><span class="o">.</span><span class="n">_fd2node</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"hostname"</span><span class="p">):</span>
179 <span class="n">msg</span> <span class="o">=</span> <span class="s">"linux::ns3::FdUdpTunnel requires endpoints on different hosts"</span>
180 <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>
181 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
183 <span class="k">return</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span><span class="p">]</span>
185 <span class="nd">@property</span>
186 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.pi"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.pi">[docs]</a> <span class="k">def</span> <span class="nf">pi</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
187 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_pi</span>
189 <span class="nd">@property</span>
190 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.endpoint1"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.endpoint1">[docs]</a> <span class="k">def</span> <span class="nf">endpoint1</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
191 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1</span>
193 <span class="nd">@property</span>
194 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.endpoint2"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.endpoint2">[docs]</a> <span class="k">def</span> <span class="nf">endpoint2</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
195 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2</span>
197 <span class="nd">@property</span>
198 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.node1"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.node1">[docs]</a> <span class="k">def</span> <span class="nf">node1</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
199 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd1node</span>
201 <span class="nd">@property</span>
202 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.node2"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.node2">[docs]</a> <span class="k">def</span> <span class="nf">node2</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
203 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_fd2node</span>
205 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.endpoint_node"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.endpoint_node">[docs]</a> <span class="k">def</span> <span class="nf">endpoint_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
206 <span class="n">node</span> <span class="o">=</span> <span class="bp">None</span>
207 <span class="k">if</span> <span class="n">endpoint</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint1</span><span class="p">:</span>
208 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">node1</span>
209 <span class="k">else</span><span class="p">:</span>
210 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">node2</span>
212 <span class="k">return</span> <span class="n">node</span>
214 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.app_home"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.app_home">[docs]</a> <span class="k">def</span> <span class="nf">app_home</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
215 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
216 <span class="k">return</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">exp_home</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_home</span><span class="p">)</span>
218 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.run_home"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.run_home">[docs]</a> <span class="k">def</span> <span class="nf">run_home</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
219 <span class="k">return</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">(</span><span class="n">endpoint</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">run_id</span><span class="p">)</span>
221 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.upload_sources"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.upload_sources">[docs]</a> <span class="k">def</span> <span class="nf">upload_sources</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
222 <span class="n">scripts</span> <span class="o">=</span> <span class="p">[]</span>
224 <span class="c"># vif-passfd python script</span>
225 <span class="n">linux_passfd</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">__file__</span><span class="p">),</span>
226 <span class="s">".."</span><span class="p">,</span>
227 <span class="s">"scripts"</span><span class="p">,</span>
228 <span class="s">"fd-udp-connect.py"</span><span class="p">)</span>
230 <span class="n">scripts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">linux_passfd</span><span class="p">)</span>
232 <span class="c"># tunnel creation python script</span>
233 <span class="n">tunchannel</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">__file__</span><span class="p">),</span>
234 <span class="s">".."</span><span class="p">,</span>
235 <span class="s">"scripts"</span><span class="p">,</span>
236 <span class="s">"tunchannel.py"</span><span class="p">)</span>
238 <span class="n">scripts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">tunchannel</span><span class="p">)</span>
240 <span class="c"># Upload scripts</span>
241 <span class="n">scripts</span> <span class="o">=</span> <span class="s">";"</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">scripts</span><span class="p">)</span>
243 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
244 <span class="n">node</span><span class="o">.</span><span class="n">upload</span><span class="p">(</span><span class="n">scripts</span><span class="p">,</span>
245 <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">src_dir</span><span class="p">),</span>
246 <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">False</span><span class="p">)</span>
248 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.endpoint_mkdir"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.endpoint_mkdir">[docs]</a> <span class="k">def</span> <span class="nf">endpoint_mkdir</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
249 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
250 <span class="n">run_home</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
251 <span class="n">node</span><span class="o">.</span><span class="n">mkdir</span><span class="p">(</span><span class="n">run_home</span><span class="p">)</span>
253 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.initiate_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.initiate_connection">[docs]</a> <span class="k">def</span> <span class="nf">initiate_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">):</span>
254 <span class="n">cipher</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">"cipher"</span><span class="p">)</span>
255 <span class="n">cipher_key</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">"cipherKey"</span><span class="p">)</span>
256 <span class="n">bwlimit</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">"bwLimit"</span><span class="p">)</span>
257 <span class="n">txqueuelen</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">"txQueueLen"</span><span class="p">)</span>
259 <span class="c"># Upload the tunnel creating script</span>
260 <span class="bp">self</span><span class="o">.</span><span class="n">upload_sources</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
262 <span class="c"># Request an address to send the file descriptor to the ns-3 simulation</span>
263 <span class="n">address</span> <span class="o">=</span> <span class="n">endpoint</span><span class="o">.</span><span class="n">recv_fd</span><span class="p">()</span>
265 <span class="c"># execute the tunnel creation script</span>
266 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">remote_endpoint</span><span class="p">)</span>
267 <span class="n">port</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">initiate</span><span class="p">(</span><span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">address</span><span class="p">,</span> <span class="n">cipher</span><span class="p">,</span>
268 <span class="n">cipher_key</span><span class="p">,</span> <span class="n">bwlimit</span><span class="p">,</span> <span class="n">txqueuelen</span><span class="p">)</span>
270 <span class="k">return</span> <span class="n">port</span>
272 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.establish_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.establish_connection">[docs]</a> <span class="k">def</span> <span class="nf">establish_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">port</span><span class="p">):</span>
273 <span class="bp">self</span><span class="o">.</span><span class="n">establish</span><span class="p">(</span><span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">port</span><span class="p">)</span>
275 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.verify_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.verify_connection">[docs]</a> <span class="k">def</span> <span class="nf">verify_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">):</span>
276 <span class="bp">self</span><span class="o">.</span><span class="n">verify</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
278 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.terminate_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.terminate_connection">[docs]</a> <span class="k">def</span> <span class="nf">terminate_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">):</span>
279 <span class="c"># Nothing to do</span>
280 <span class="k">return</span>
282 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.check_state_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.check_state_connection">[docs]</a> <span class="k">def</span> <span class="nf">check_state_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
283 <span class="c"># Make sure the process is still running in background</span>
284 <span class="c"># No execution errors occurred. Make sure the background</span>
285 <span class="c"># process with the recorded pid is still running.</span>
287 <span class="n">node1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">endpoint1</span><span class="p">)</span>
288 <span class="n">node2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">endpoint2</span><span class="p">)</span>
289 <span class="n">run_home1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">endpoint1</span><span class="p">)</span>
290 <span class="n">run_home2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">endpoint1</span><span class="p">)</span>
291 <span class="p">(</span><span class="n">pid1</span><span class="p">,</span> <span class="n">ppid1</span><span class="p">)</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_pids</span><span class="p">[</span><span class="n">endpoint1</span><span class="p">]</span>
292 <span class="p">(</span><span class="n">pid2</span><span class="p">,</span> <span class="n">ppid2</span><span class="p">)</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_pids</span><span class="p">[</span><span class="n">endpoint2</span><span class="p">]</span>
294 <span class="n">status1</span> <span class="o">=</span> <span class="n">node1</span><span class="o">.</span><span class="n">status</span><span class="p">(</span><span class="n">pid1</span><span class="p">,</span> <span class="n">ppid1</span><span class="p">)</span>
295 <span class="n">status2</span> <span class="o">=</span> <span class="n">node2</span><span class="o">.</span><span class="n">status</span><span class="p">(</span><span class="n">pid2</span><span class="p">,</span> <span class="n">ppid2</span><span class="p">)</span>
297 <span class="k">if</span> <span class="n">status1</span> <span class="o">==</span> <span class="n">ProcStatus</span><span class="o">.</span><span class="n">FINISHED</span> <span class="ow">and</span> \
298 <span class="n">status2</span> <span class="o">==</span> <span class="n">ProcStatus</span><span class="o">.</span><span class="n">FINISHED</span><span class="p">:</span>
300 <span class="c"># check if execution errors occurred</span>
301 <span class="p">(</span><span class="n">out1</span><span class="p">,</span> <span class="n">err1</span><span class="p">),</span> <span class="n">proc1</span> <span class="o">=</span> <span class="n">node1</span><span class="o">.</span><span class="n">check_errors</span><span class="p">(</span><span class="n">run_home1</span><span class="p">)</span>
302 <span class="p">(</span><span class="n">out2</span><span class="p">,</span> <span class="n">err2</span><span class="p">),</span> <span class="n">proc2</span> <span class="o">=</span> <span class="n">node2</span><span class="o">.</span><span class="n">check_errors</span><span class="p">(</span><span class="n">run_home2</span><span class="p">)</span>
304 <span class="k">if</span> <span class="n">err1</span> <span class="ow">or</span> <span class="n">err2</span><span class="p">:</span>
305 <span class="n">msg</span> <span class="o">=</span> <span class="s">"Error occurred in tunnel"</span>
306 <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">err1</span><span class="p">,</span> <span class="n">err2</span><span class="p">)</span>
307 <span class="bp">self</span><span class="o">.</span><span class="n">fail</span><span class="p">()</span>
308 <span class="k">else</span><span class="p">:</span>
309 <span class="bp">self</span><span class="o">.</span><span class="n">set_stopped</span><span class="p">()</span>
311 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.wait_local_port"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.wait_local_port">[docs]</a> <span class="k">def</span> <span class="nf">wait_local_port</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
312 <span class="sd">""" Waits until the local_port file for the endpoint is generated, </span>
313 <span class="sd"> and returns the port number </span>
314 <span class="sd"> </span>
315 <span class="sd"> """</span>
316 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">wait_file</span><span class="p">(</span><span class="n">endpoint</span><span class="p">,</span> <span class="s">"local_port"</span><span class="p">)</span>
318 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.wait_result"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.wait_result">[docs]</a> <span class="k">def</span> <span class="nf">wait_result</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
319 <span class="sd">""" Waits until the return code file for the endpoint is generated </span>
320 <span class="sd"> </span>
321 <span class="sd"> """</span>
322 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">wait_file</span><span class="p">(</span><span class="n">endpoint</span><span class="p">,</span> <span class="s">"ret_file"</span><span class="p">)</span>
324 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.wait_file"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.wait_file">[docs]</a> <span class="k">def</span> <span class="nf">wait_file</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">filename</span><span class="p">):</span>
325 <span class="sd">""" Waits until file on endpoint is generated """</span>
326 <span class="n">result</span> <span class="o">=</span> <span class="bp">None</span>
327 <span class="n">delay</span> <span class="o">=</span> <span class="mf">1.0</span>
329 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
330 <span class="n">run_home</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
332 <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">xrange</span><span class="p">(</span><span class="mi">20</span><span class="p">):</span>
333 <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="n">node</span><span class="o">.</span><span class="n">check_output</span><span class="p">(</span><span class="n">run_home</span><span class="p">,</span> <span class="n">filename</span><span class="p">)</span>
335 <span class="k">if</span> <span class="n">out</span><span class="p">:</span>
336 <span class="n">result</span> <span class="o">=</span> <span class="n">out</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
337 <span class="k">break</span>
338 <span class="k">else</span><span class="p">:</span>
339 <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="n">delay</span><span class="p">)</span>
340 <span class="n">delay</span> <span class="o">=</span> <span class="n">delay</span> <span class="o">*</span> <span class="mf">1.5</span>
341 <span class="k">else</span><span class="p">:</span>
342 <span class="n">msg</span> <span class="o">=</span> <span class="s">"Couldn't retrieve </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">filename</span>
343 <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>
344 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
346 <span class="k">return</span> <span class="n">result</span>
348 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.initiate"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.initiate">[docs]</a> <span class="k">def</span> <span class="nf">initiate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">address</span><span class="p">,</span> <span class="n">cipher</span><span class="p">,</span> <span class="n">cipher_key</span><span class="p">,</span>
349 <span class="n">bwlimit</span><span class="p">,</span> <span class="n">txqueuelen</span><span class="p">):</span>
351 <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_initiate_command</span><span class="p">(</span><span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span>
352 <span class="n">address</span><span class="p">,</span> <span class="n">cipher</span><span class="p">,</span> <span class="n">cipher_key</span><span class="p">,</span> <span class="n">bwlimit</span><span class="p">,</span> <span class="n">txqueuelen</span><span class="p">)</span>
354 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
355 <span class="n">run_home</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
356 <span class="n">app_home</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
358 <span class="c"># upload command to connect.sh script</span>
359 <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">app_home</span><span class="p">,</span> <span class="s">"fd-udp-connect.sh"</span><span class="p">)</span>
360 <span class="n">node</span><span class="o">.</span><span class="n">upload_command</span><span class="p">(</span><span class="n">command</span><span class="p">,</span>
361 <span class="n">shfile</span> <span class="o">=</span> <span class="n">shfile</span><span class="p">,</span>
362 <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">False</span><span class="p">)</span>
364 <span class="c"># invoke connect script</span>
365 <span class="n">cmd</span> <span class="o">=</span> <span class="s">"bash </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">shfile</span>
366 <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="n">node</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">cmd</span><span class="p">,</span> <span class="n">run_home</span><span class="p">)</span>
368 <span class="c"># check if execution errors occurred</span>
369 <span class="n">msg</span> <span class="o">=</span> <span class="s">"Failed to connect endpoints "</span>
371 <span class="k">if</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">():</span>
372 <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>
373 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
375 <span class="c"># Wait for pid file to be generated</span>
376 <span class="n">pid</span><span class="p">,</span> <span class="n">ppid</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">wait_pid</span><span class="p">(</span><span class="n">run_home</span><span class="p">)</span>
378 <span class="bp">self</span><span class="o">.</span><span class="n">_pids</span><span class="p">[</span><span class="n">endpoint</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">pid</span><span class="p">,</span> <span class="n">ppid</span><span class="p">)</span>
380 <span class="c"># Check for error information on the remote machine</span>
381 <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="n">node</span><span class="o">.</span><span class="n">check_errors</span><span class="p">(</span><span class="n">run_home</span><span class="p">)</span>
382 <span class="c"># Out is what was written in the stderr file</span>
383 <span class="k">if</span> <span class="n">err</span><span class="p">:</span>
384 <span class="n">msg</span> <span class="o">=</span> <span class="s">" Failed to start command '</span><span class="si">%s</span><span class="s">' "</span> <span class="o">%</span> <span class="n">command</span>
385 <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>
386 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
388 <span class="n">port</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">wait_local_port</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
390 <span class="k">return</span> <span class="n">port</span>
392 <span class="k">def</span> <span class="nf">_initiate_command</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">address</span><span class="p">,</span>
393 <span class="n">cipher</span><span class="p">,</span> <span class="n">cipher_key</span><span class="p">,</span> <span class="n">bwlimit</span><span class="p">,</span> <span class="n">txqueuelen</span><span class="p">):</span>
394 <span class="n">local_node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
395 <span class="n">local_run_home</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
396 <span class="n">local_app_home</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
397 <span class="n">remote_node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">remote_endpoint</span><span class="p">)</span>
399 <span class="n">local_ip</span> <span class="o">=</span> <span class="n">local_node</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"ip"</span><span class="p">)</span>
400 <span class="n">remote_ip</span> <span class="o">=</span> <span class="n">remote_node</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"ip"</span><span class="p">)</span>
402 <span class="n">local_port_file</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">local_run_home</span><span class="p">,</span> <span class="s">"local_port"</span><span class="p">)</span>
403 <span class="n">remote_port_file</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">local_run_home</span><span class="p">,</span> <span class="s">"remote_port"</span><span class="p">)</span>
404 <span class="n">ret_file</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">local_run_home</span><span class="p">,</span> <span class="s">"ret_file"</span><span class="p">)</span>
406 <span class="n">address</span> <span class="o">=</span> <span class="n">base64</span><span class="o">.</span><span class="n">b64encode</span><span class="p">(</span><span class="n">address</span><span class="p">)</span>
408 <span class="n">command</span> <span class="o">=</span> <span class="p">[</span><span class="s">""</span><span class="p">]</span>
409 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"PYTHONPATH=$PYTHONPATH:${SRC}"</span><span class="p">)</span>
410 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"python ${SRC}/fd-udp-connect.py"</span><span class="p">)</span>
411 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-a </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">address</span><span class="p">)</span>
412 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-p </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">local_port_file</span><span class="p">)</span>
413 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-P </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">remote_port_file</span><span class="p">)</span>
414 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-o </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">local_ip</span><span class="p">)</span>
415 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-O </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">remote_ip</span><span class="p">)</span>
416 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-R </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">ret_file</span><span class="p">)</span>
417 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-t </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="s">"IFF_TAP"</span><span class="p">)</span>
418 <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">pi</span><span class="p">:</span>
419 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-n"</span><span class="p">)</span>
420 <span class="k">if</span> <span class="n">cipher</span><span class="p">:</span>
421 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-c </span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="n">cipher</span><span class="p">)</span>
422 <span class="k">if</span> <span class="n">cipher_key</span><span class="p">:</span>
423 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-k </span><span class="si">%s</span><span class="s"> "</span> <span class="o">%</span> <span class="n">cipher_key</span><span class="p">)</span>
424 <span class="k">if</span> <span class="n">txqueuelen</span><span class="p">:</span>
425 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-q </span><span class="si">%s</span><span class="s"> "</span> <span class="o">%</span> <span class="n">txqueuelen</span><span class="p">)</span>
426 <span class="k">if</span> <span class="n">bwlimit</span><span class="p">:</span>
427 <span class="n">command</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-b </span><span class="si">%s</span><span class="s"> "</span> <span class="o">%</span> <span class="n">bwlimit</span><span class="p">)</span>
429 <span class="n">command</span> <span class="o">=</span> <span class="s">" "</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">command</span><span class="p">)</span>
430 <span class="n">command</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">replace_paths</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="n">node</span><span class="o">=</span><span class="n">local_node</span><span class="p">,</span>
431 <span class="n">app_home</span><span class="o">=</span><span class="n">local_app_home</span><span class="p">,</span> <span class="n">run_home</span><span class="o">=</span><span class="n">local_run_home</span><span class="p">)</span>
433 <span class="k">return</span> <span class="n">command</span>
435 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.establish"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.establish">[docs]</a> <span class="k">def</span> <span class="nf">establish</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">,</span> <span class="n">remote_endpoint</span><span class="p">,</span> <span class="n">port</span><span class="p">):</span>
436 <span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">endpoint_node</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
437 <span class="n">run_home</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
439 <span class="c"># upload remote port number to file</span>
440 <span class="n">remote_port</span> <span class="o">=</span> <span class="s">"</span><span class="si">%s</span><span class="se">\n</span><span class="s">"</span> <span class="o">%</span> <span class="n">port</span>
441 <span class="n">node</span><span class="o">.</span><span class="n">upload</span><span class="p">(</span><span class="n">remote_port</span><span class="p">,</span>
442 <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">run_home</span><span class="p">,</span> <span class="s">"remote_port"</span><span class="p">),</span>
443 <span class="n">text</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
444 <span class="n">overwrite</span> <span class="o">=</span> <span class="bp">False</span><span class="p">)</span>
446 <div class="viewcode-block" id="LinuxNs3FdUdpTunnel.verify"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ns3.html#nepi.resources.linux.ns3.fdudptunnel.LinuxNs3FdUdpTunnel.verify">[docs]</a> <span class="k">def</span> <span class="nf">verify</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">endpoint</span><span class="p">):</span>
447 <span class="bp">self</span><span class="o">.</span><span class="n">wait_result</span><span class="p">(</span><span class="n">endpoint</span><span class="p">)</span>
448 </pre></div></div></div>
453 <div class="clearer"></div>
455 <div class="related">
458 <li class="right" style="margin-right: 10px">
459 <a href="../../../../../genindex.html" title="General Index"
462 <a href="../../../../../py-modindex.html" title="Python Module Index"
464 <li><a href="../../../../../index.html">NEPI 3.2 documentation</a> »</li>
465 <li><a href="../../../../index.html" >Module code</a> »</li>
469 © Copyright 2014, Alina Quereilhac, Lucia Guevgeozian Odizzio, Julien Tribino.
470 Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.