Google Git
Sign in
apache / nuttx-website / refs/heads/asf-site / . / content / docs / 12.10.0 / guides / testingtcpip.html
blob: 6a54322c7867b41beb2c50974f21694fbd626acb [file] [log] [blame]
<!--
Documentation/_templates/layout.html
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership. The
ASF licenses this file to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance with the
License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations
under the License.
-->
<!DOCTYPE html>
<html class="writer-html5" lang="en">
<head>
<meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Testing TCP/IP Network Stacks &mdash; NuttX latest documentation</title>
<link rel="stylesheet" type="text/css" href="../_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="../_static/css/theme.css" />
<link rel="stylesheet" type="text/css" href="../_static/copybutton.css" />
<link rel="stylesheet" type="text/css" href="../_static/design-style.1e8bd061cd6da7fc9cf755528e8ffc24.min.css" />
<link rel="stylesheet" type="text/css" href="../_static/custom.css" />
<link rel="shortcut icon" href="../_static/favicon.ico"/>
<script src="../_static/jquery.js"></script>
<script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
<script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script>
<script src="../_static/doctools.js"></script>
<script src="../_static/sphinx_highlight.js"></script>
<script src="../_static/clipboard.min.js"></script>
<script src="../_static/copybutton.js"></script>
<script src="../_static/design-tabs.js"></script>
<script src="../_static/js/theme.js"></script>
<link rel="index" title="Index" href="../genindex.html" />
<link rel="search" title="Search" href="../search.html" />
<link rel="next" title="Auto-Mounter" href="automounter.html" />
<link rel="prev" title="Open Flash Loader" href="ofloader.html" />
</head>
<body class="wy-body-for-nav">
<div class="wy-grid-for-nav">
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
<div class="wy-side-scroll">
<div class="wy-side-nav-search" >
<a href="../index.html" class="icon icon-home"> NuttX
</a>
<!-- this version selector is quite ugly, should be probably replaced by something
more modern -->
<div class="version-selector">
<select onchange="javascript:location.href = this.value;">
<option value="../../latest" selected="selected">latest</option>
<option value="../../10.0.0" >10.0.0</option>
<option value="../../10.0.1" >10.0.1</option>
<option value="../../10.1.0" >10.1.0</option>
<option value="../../10.2.0" >10.2.0</option>
<option value="../../10.3.0" >10.3.0</option>
<option value="../../11.0.0" >11.0.0</option>
<option value="../../12.0.0" >12.0.0</option>
<option value="../../12.1.0" >12.1.0</option>
<option value="../../12.2.0" >12.2.0</option>
<option value="../../12.2.1" >12.2.1</option>
<option value="../../12.3.0" >12.3.0</option>
<option value="../../12.4.0" >12.4.0</option>
<option value="../../12.5.0" >12.5.0</option>
<option value="../../12.5.1" >12.5.1</option>
<option value="../../12.6.0" >12.6.0</option>
<option value="../../12.7.0" >12.7.0</option>
<option value="../../12.8.0" >12.8.0</option>
<option value="../../12.9.0" >12.9.0</option>
<option value="../../12.10.0" >12.10.0</option>
<option value="../../12.11.0" >12.11.0</option>
</select>
</div>
<div role="search">
<form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
<input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div><div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu">
<p class="caption" role="heading"><span class="caption-text">Table of Contents</span></p>
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../index.html">Home</a></li>
<li class="toctree-l1"><a class="reference internal" href="../introduction/index.html">Introduction</a></li>
<li class="toctree-l1"><a class="reference internal" href="../quickstart/index.html">Getting Started</a></li>
<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing</a></li>
<li class="toctree-l1"><a class="reference internal" href="../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
<li class="toctree-l1"><a class="reference internal" href="../platforms/index.html">Supported Platforms</a></li>
<li class="toctree-l1"><a class="reference internal" href="../components/index.html">OS Components</a></li>
<li class="toctree-l1"><a class="reference internal" href="../applications/index.html">Applications</a></li>
<li class="toctree-l1"><a class="reference internal" href="../implementation/index.html">Implementation Details</a></li>
<li class="toctree-l1"><a class="reference internal" href="../reference/index.html">API Reference</a></li>
<li class="toctree-l1"><a class="reference internal" href="../faq/index.html">FAQ</a></li>
<li class="toctree-l1"><a class="reference internal" href="../debugging/index.html">Debugging</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="index.html">Guides</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="nfs.html">NFS Client How-To</a></li>
<li class="toctree-l2"><a class="reference internal" href="usbtrace.html">USB Device Trace</a></li>
<li class="toctree-l2"><a class="reference internal" href="simulator.html">Simulator</a></li>
<li class="toctree-l2"><a class="reference internal" href="rndis.html">How to use RNDIS</a></li>
<li class="toctree-l2"><a class="reference internal" href="drivers.html">Drivers</a></li>
<li class="toctree-l2"><a class="reference internal" href="cpp_cmake.html">C++ Example using CMake</a></li>
<li class="toctree-l2"><a class="reference internal" href="pysimcoder.html">pysimCoder integration with NuttX</a></li>
<li class="toctree-l2"><a class="reference internal" href="customboards.html">Custom Boards How-To</a></li>
<li class="toctree-l2"><a class="reference internal" href="customapps.html">Custom Apps How-to</a></li>
<li class="toctree-l2"><a class="reference internal" href="citests.html">Running CI Test Locally</a></li>
<li class="toctree-l2"><a class="reference internal" href="zerolatencyinterrupts.html">High Performance: Zero Latency Interrupts, Maskable Nested Interrupts</a></li>
<li class="toctree-l2"><a class="reference internal" href="fortify.html">Fortify</a></li>
<li class="toctree-l2"><a class="reference internal" href="nestedinterrupts.html">Nested Interrupts</a></li>
<li class="toctree-l2"><a class="reference internal" href="ofloader.html">Open Flash Loader</a></li>
<li class="toctree-l2 current"><a class="current reference internal" href="#">Testing TCP/IP Network Stacks</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#syn-flood-attack">SYN Flood Attack</a></li>
<li class="toctree-l3"><a class="reference internal" href="#building-packets-with-scapy">Building Packets with Scapy</a></li>
<li class="toctree-l3"><a class="reference internal" href="#simulating-packet-loss">Simulating Packet Loss</a></li>
<li class="toctree-l3"><a class="reference internal" href="#fuzz-testing">Fuzz-Testing</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="automounter.html">Auto-Mounter</a></li>
<li class="toctree-l2"><a class="reference internal" href="stm32nullpointer.html">STM32 Null Pointer Detection</a></li>
<li class="toctree-l2"><a class="reference internal" href="stm32ccm.html">STM32 CCM Allocator</a></li>
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc romfs</a></li>
<li class="toctree-l2"><a class="reference internal" href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal" href="devicetree.html">Device Tree</a></li>
<li class="toctree-l2"><a class="reference internal" href="changing_systemclockconfig.html">Changing the System Clock Configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="usingkernelthreads.html">Using Kernel Threads</a></li>
<li class="toctree-l2"><a class="reference internal" href="armv7m_runtimestackcheck.html">ARMv7-M Run Time Stack Checking</a></li>
<li class="toctree-l2"><a class="reference internal" href="include_files_board_h.html">Including Files in board.h</a></li>
<li class="toctree-l2"><a class="reference internal" href="specialstuff_in_nuttxheaderfiles.html">Why can’t I put my special stuff in NuttX header files?</a></li>
<li class="toctree-l2"><a class="reference internal" href="kernel_threads_with_custom_stacks.html">Kernel Threads with Custom Stacks</a></li>
<li class="toctree-l2"><a class="reference internal" href="versioning_and_task_names.html">Versioning and Task Names</a></li>
<li class="toctree-l2"><a class="reference internal" href="logging_rambuffer.html">Logging to a RAM Buffer</a></li>
<li class="toctree-l2"><a class="reference internal" href="ipv6.html">IPv6</a></li>
<li class="toctree-l2"><a class="reference internal" href="integrate_newlib.html">Integrating with Newlib</a></li>
<li class="toctree-l2"><a class="reference internal" href="protected_build.html">NuttX Protected Build</a></li>
<li class="toctree-l2"><a class="reference internal" href="platform_directories.html">Platform Directories</a></li>
<li class="toctree-l2"><a class="reference internal" href="port_drivers_to_stm32f7.html">Porting Drivers to the STM32 F7</a></li>
<li class="toctree-l2"><a class="reference internal" href="semihosting.html">Semihosting</a></li>
<li class="toctree-l2"><a class="reference internal" href="renode.html">Run NuttX on Renode</a></li>
<li class="toctree-l2"><a class="reference internal" href="signal_events_interrupt_handlers.html">Signaling Events from Interrupt Handlers</a></li>
<li class="toctree-l2"><a class="reference internal" href="signaling_sem_priority_inheritance.html">Signaling Semaphores and Priority Inheritance</a></li>
<li class="toctree-l2"><a class="reference internal" href="smaller_vector_tables.html">Smaller Vector Tables</a></li>
<li class="toctree-l2"><a class="reference internal" href="port.html">How to port</a></li>
<li class="toctree-l2"><a class="reference internal" href="updating_release_system_elf.html">Updating a Release System with ELF Programs</a></li>
<li class="toctree-l2"><a class="reference internal" href="partially_linked_elf.html">ELF Programs – With Symbol Tables</a></li>
<li class="toctree-l2"><a class="reference internal" href="fully_linked_elf.html">ELF Programs – No Symbol Tables</a></li>
<li class="toctree-l2"><a class="reference internal" href="building_nuttx_with_app_out_of_src_tree.html">Building NuttX with Applications Outside the Source Tree</a></li>
<li class="toctree-l2"><a class="reference internal" href="building_uclibcpp.html">Building uClibc++</a></li>
<li class="toctree-l2"><a class="reference internal" href="custom_app_directories.html">Custom Application Directories</a></li>
<li class="toctree-l2"><a class="reference internal" href="multiple_nsh_sessions.html">Multiple NSH Sessions</a></li>
<li class="toctree-l2"><a class="reference internal" href="nsh_network_link_management.html">NSH Network Link Management</a></li>
<li class="toctree-l2"><a class="reference internal" href="ram_rom_disks.html">RAM Disks and ROM Disks</a></li>
<li class="toctree-l2"><a class="reference internal" href="reading_can_msgs.html">Reading CAN Messages</a></li>
<li class="toctree-l2"><a class="reference internal" href="remove_device_drivers_nsh.html">Removing Device Drivers with NSH</a></li>
<li class="toctree-l2"><a class="reference internal" href="rust.html">Rust in NuttX</a></li>
<li class="toctree-l2"><a class="reference internal" href="optee.html">Interfacing with OP-TEE</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../glossary.html">Glossary</a></li>
<li class="toctree-l1"><a class="reference internal" href="../logos/index.html">NuttX Logos</a></li>
<li class="toctree-l1"><a class="reference internal" href="../_tags/tagsindex.html">Tags</a></li>
</ul>
</div>
</div>
</nav>
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"><nav class="wy-nav-top" aria-label="Mobile navigation menu" >
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
<a href="../index.html">NuttX</a>
</nav>
<div class="wy-nav-content">
<div class="rst-content">
<div role="navigation" aria-label="Page navigation">
<ul class="wy-breadcrumbs">
<li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
<li class="breadcrumb-item"><a href="index.html">Guides</a></li>
<li class="breadcrumb-item active">Testing TCP/IP Network Stacks</li>
<li class="wy-breadcrumbs-aside">
<a href="https://github.com/apache/nuttx/blob/master/Documentation/guides/testingtcpip.rst" class="fa fa-github"> Edit on GitHub</a>
</li>
</ul>
<hr/>
</div>
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
<div itemprop="articleBody">
<section id="testing-tcp-ip-network-stacks">
<h1>Testing TCP/IP Network Stacks<a class="headerlink" href="#testing-tcp-ip-network-stacks" title="Permalink to this heading"></a></h1>
<p>When working on the network stack there is a need to test and verify the changes
made. While problems may be discovered by chance, it is hard to reproduce such
situations. The following sections show some methods to stress the target or
generate some specific traffic.</p>
<p>In the examples the target has the IP address 192.168.2.135</p>
<section id="syn-flood-attack">
<h2>SYN Flood Attack<a class="headerlink" href="#syn-flood-attack" title="Permalink to this heading"></a></h2>
<p>Flood the target with SYN packets to exhaust its resources.
It’s a good way to test the network driver’s buffer management.</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>sudo<span class="w"> </span>hping3<span class="w"> </span>--flood<span class="w"> </span>-S<span class="w"> </span>-p<span class="w"> </span><span class="m">80</span><span class="w"> </span><span class="m">192</span>.168.2.135
</pre></div>
</div>
</section>
<section id="building-packets-with-scapy">
<h2>Building Packets with Scapy<a class="headerlink" href="#building-packets-with-scapy" title="Permalink to this heading"></a></h2>
<p>A wonderful network testing tool is the Scapy lib.
It enables you to build pretty much any packet constellation you need for testing.</p>
<p>You have to add an iptables rule to prevent outgoing RST packets from the OS’s
networking stack which does nothing know about our test connection.</p>
<p>To disable outgoing RST packets:</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>sudo<span class="w"> </span>iptables<span class="w"> </span>-A<span class="w"> </span>OUTPUT<span class="w"> </span>-p<span class="w"> </span>tcp<span class="w"> </span>--tcp-flags<span class="w"> </span>RST<span class="w"> </span>RST<span class="w"> </span>-d<span class="w"> </span><span class="m">192</span>.168.2.135<span class="w"> </span>-j<span class="w"> </span>DROP
</pre></div>
</div>
<p>For removing the rule:</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>sudo<span class="w"> </span>iptables<span class="w"> </span>-D<span class="w"> </span>OUTPUT<span class="w"> </span>-p<span class="w"> </span>tcp<span class="w"> </span>--tcp-flags<span class="w"> </span>RST<span class="w"> </span>RST<span class="w"> </span>-d<span class="w"> </span><span class="m">192</span>.168.2.135<span class="w"> </span>-j<span class="w"> </span>DROP
</pre></div>
</div>
<p><strong>Testing Re-transmission behavior</strong></p>
<p>When sending a 3-way handshake only, the target should time out and reset the
connection.</p>
<p>The following Python Scapy script starts a HTTP request without further responding.
The stack should start re-transmit the packets and finally time out.</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/usr/bin/env python</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">logging</span>
<span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s2">&quot;scapy.runtime&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">setLevel</span><span class="p">(</span><span class="n">logging</span><span class="o">.</span><span class="n">ERROR</span><span class="p">)</span>
<span class="kn">from</span><span class="w"> </span><span class="nn">scapy.all</span><span class="w"> </span><span class="kn">import</span> <span class="o">*</span>
<span class="n">get</span> <span class="o">=</span> <span class="s1">&#39;GET / HTTP/1.1</span><span class="se">\r\n\r\n</span><span class="s1">&#39;</span>
<span class="n">ip</span> <span class="o">=</span> <span class="n">IP</span><span class="p">(</span><span class="n">dst</span><span class="o">=</span><span class="s2">&quot;192.168.2.135&quot;</span><span class="p">)</span>
<span class="n">port</span> <span class="o">=</span> <span class="n">RandNum</span><span class="p">(</span><span class="mi">1024</span><span class="p">,</span> <span class="mi">65535</span><span class="p">)</span>
<span class="c1"># Create SYN packet</span>
<span class="n">SYN</span> <span class="o">=</span> <span class="n">ip</span><span class="o">/</span><span class="n">TCP</span><span class="p">(</span><span class="n">sport</span><span class="o">=</span><span class="n">port</span><span class="p">,</span> <span class="n">dport</span><span class="o">=</span><span class="mi">80</span><span class="p">,</span> <span class="n">flags</span><span class="o">=</span><span class="s2">&quot;S&quot;</span><span class="p">,</span> <span class="n">seq</span><span class="o">=</span><span class="mi">42</span><span class="p">)</span>
<span class="c1"># Send SYN and receive SYN,ACK</span>
<span class="n">SYNACK</span> <span class="o">=</span> <span class="n">sr1</span><span class="p">(</span><span class="n">SYN</span><span class="p">)</span>
<span class="c1"># Create ACK with GET request</span>
<span class="n">ACK</span> <span class="o">=</span> <span class="n">ip</span><span class="o">/</span><span class="n">TCP</span><span class="p">(</span><span class="n">sport</span><span class="o">=</span><span class="n">SYNACK</span><span class="o">.</span><span class="n">dport</span><span class="p">,</span> <span class="n">dport</span><span class="o">=</span><span class="mi">80</span><span class="p">,</span> <span class="n">flags</span><span class="o">=</span><span class="s2">&quot;A&quot;</span><span class="p">,</span> <span class="n">seq</span><span class="o">=</span><span class="n">SYNACK</span><span class="o">.</span><span class="n">ack</span><span class="p">,</span> <span class="n">ack</span><span class="o">=</span><span class="n">SYNACK</span><span class="o">.</span><span class="n">seq</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
<span class="c1"># SEND our ACK</span>
<span class="n">send</span><span class="p">(</span><span class="n">ACK</span><span class="p">)</span>
<span class="n">reply</span><span class="p">,</span> <span class="n">err</span> <span class="o">=</span> <span class="n">sr</span><span class="p">(</span><span class="n">ip</span><span class="o">/</span><span class="n">TCP</span><span class="p">(</span><span class="n">sport</span><span class="o">=</span><span class="n">SYNACK</span><span class="o">.</span><span class="n">dport</span><span class="p">,</span> <span class="n">dport</span><span class="o">=</span><span class="mi">80</span><span class="p">,</span> <span class="n">flags</span><span class="o">=</span><span class="s2">&quot;A&quot;</span><span class="p">,</span> <span class="n">seq</span><span class="o">=</span><span class="n">SYNACK</span><span class="o">.</span><span class="n">ack</span><span class="p">,</span> <span class="n">ack</span><span class="o">=</span><span class="n">SYNACK</span><span class="o">.</span><span class="n">seq</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="o">/</span> <span class="n">get</span><span class="p">)</span>
</pre></div>
</div>
</section>
<section id="simulating-packet-loss">
<h2>Simulating Packet Loss<a class="headerlink" href="#simulating-packet-loss" title="Permalink to this heading"></a></h2>
<p>With simulating packet loss one can test the re-transmission behavior of the
target stack.</p>
<p>To start packet loss:</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="c1"># for randomly dropping 10% of incoming packets:</span>
sudo<span class="w"> </span>iptables<span class="w"> </span>-A<span class="w"> </span>INPUT<span class="w"> </span>-m<span class="w"> </span>statistic<span class="w"> </span>--mode<span class="w"> </span>random<span class="w"> </span>--probability<span class="w"> </span><span class="m">0</span>.1<span class="w"> </span>-j<span class="w"> </span>DROP
<span class="c1"># and for dropping 10% of outgoing packets:</span>
sudo<span class="w"> </span>iptables<span class="w"> </span>-A<span class="w"> </span>OUTPUT<span class="w"> </span>-m<span class="w"> </span>statistic<span class="w"> </span>--mode<span class="w"> </span>random<span class="w"> </span>--probability<span class="w"> </span><span class="m">0</span>.1<span class="w"> </span>-j<span class="w"> </span>DROP
</pre></div>
</div>
<p>To remove the rules:</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="c1"># for the incoming packets:</span>
sudo<span class="w"> </span>iptables<span class="w"> </span>-D<span class="w"> </span>INPUT<span class="w"> </span>-m<span class="w"> </span>statistic<span class="w"> </span>--mode<span class="w"> </span>random<span class="w"> </span>--probability<span class="w"> </span><span class="m">0</span>.1<span class="w"> </span>-j<span class="w"> </span>DROP
<span class="c1"># and for the outgoing packets</span>
sudo<span class="w"> </span>iptables<span class="w"> </span>-D<span class="w"> </span>OUTPUT<span class="w"> </span>-m<span class="w"> </span>statistic<span class="w"> </span>--mode<span class="w"> </span>random<span class="w"> </span>--probability<span class="w"> </span><span class="m">0</span>.1<span class="w"> </span>-j<span class="w"> </span>DROP
</pre></div>
</div>
</section>
<section id="fuzz-testing">
<h2>Fuzz-Testing<a class="headerlink" href="#fuzz-testing" title="Permalink to this heading"></a></h2>
<p>For fuzz testing network applications the excellent
<a class="reference external" href="https://www.immunitysec.com/resources-freesoftware.shtml">SPIKE</a> tool can be
used. To make it compile under Ubuntu 14.04 LTS you have to add
<code class="docutils literal notranslate"><span class="pre">-fno-stack-protector</span></code> to CFLAGS.</p>
<p>SPIKE complained about missing SSL libs. I simply linked the existing to the needed
filenames:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>/lib/i386-linux-gnu$ sudo ln -s ./libssl.so.1.0.0 ./libssl.so.0
/lib/i386-linux-gnu$ sudo ln -s ./libcrypto.so.1.0.0 ./libcrypto.so.0
</pre></div>
</div>
<p>Maybe those lib versions aren’t the expected by SPIKE but if you don’t use SSL
it works fine.</p>
<p>SPIKE provides a proxy server to record requests to your web application. Based
on these requests a application specific fuzz test can be generated.</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>~/SPIKE/src$<span class="w"> </span>mkdir<span class="w"> </span>requests<span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="nb">cd</span><span class="w"> </span>requests
<span class="c1"># Record requests to the target at 192.168.2.135 on port 80</span>
~/SPIKE/src/requests$<span class="w"> </span>../webmitm<span class="w"> </span>-t<span class="w"> </span><span class="m">192</span>.168.2.135<span class="w"> </span>-p<span class="w"> </span><span class="m">80</span>
</pre></div>
</div>
<p>Now use your web application through localhost to record some requests. Then you
can generate your application-specific fuzz test from the recorded requests.</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>~/SPIKE/src$<span class="w"> </span>./makewebfuzz.pl<span class="w"> </span>./requests/http_request-1.0<span class="w"> </span>&gt;<span class="w"> </span>myfuzz.c
~/SPIKE/src$<span class="w"> </span>gcc<span class="w"> </span>./myfuzz.c<span class="w"> </span>-I../include<span class="w"> </span>-o<span class="w"> </span>myfuzz<span class="w"> </span>-L.<span class="w"> </span>-ldlrpc<span class="w"> </span>-ldl
</pre></div>
</div>
<p>Now you can fuzz your target:</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>~/SPIKE/src$<span class="w"> </span><span class="nv">LD_LIBRARY_PATH</span><span class="o">=</span>.<span class="w"> </span>./myfuzz<span class="w"> </span><span class="m">192</span>.168.2.135<span class="w"> </span><span class="m">80</span>
</pre></div>
</div>
</section>
</section>
</div>
</div>
<footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
<a href="ofloader.html" class="btn btn-neutral float-left" title="Open Flash Loader" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
<a href="automounter.html" class="btn btn-neutral float-right" title="Auto-Mounter" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
</div>
<hr/>
<div role="contentinfo">
<p>&#169; Copyright 2023, The Apache Software Foundation.</p>
</div>
</footer>
</div>
</div>
</section>
</div>
<script>
jQuery(function () {
SphinxRtdTheme.Navigation.enable(true);
});
</script>
</body>
</html>