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<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html 
     PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
  <title>Module: Net::SSH::Transport::OSSL</title>
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
  <meta http-equiv="Content-Script-Type" content="text/javascript" />
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<body>



    <div id="classHeader">
        <table class="header-table">
        <tr class="top-aligned-row">
          <td><strong>Module</strong></td>
          <td class="class-name-in-header">Net::SSH::Transport::OSSL</td>
        </tr>
        <tr class="top-aligned-row">
            <td><strong>In:</strong></td>
            <td>
                <a href="../../../../files/lib/net/ssh/transport/ossl/buffer-factory_rb.html">
                lib/net/ssh/transport/ossl/buffer-factory.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/buffer_rb.html">
                lib/net/ssh/transport/ossl/buffer.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/cipher-factory_rb.html">
                lib/net/ssh/transport/ossl/cipher-factory.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/digest-factory_rb.html">
                lib/net/ssh/transport/ossl/digest-factory.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac-factory_rb.html">
                lib/net/ssh/transport/ossl/hmac-factory.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/key-factory_rb.html">
                lib/net/ssh/transport/ossl/key-factory.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/services_rb.html">
                lib/net/ssh/transport/ossl/services.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac/hmac_rb.html">
                lib/net/ssh/transport/ossl/hmac/hmac.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac/md5-96_rb.html">
                lib/net/ssh/transport/ossl/hmac/md5-96.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac/md5_rb.html">
                lib/net/ssh/transport/ossl/hmac/md5.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac/none_rb.html">
                lib/net/ssh/transport/ossl/hmac/none.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac/services_rb.html">
                lib/net/ssh/transport/ossl/hmac/services.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac/sha1-96_rb.html">
                lib/net/ssh/transport/ossl/hmac/sha1-96.rb
                </a>
        <br />
                <a href="../../../../files/lib/net/ssh/transport/ossl/hmac/sha1_rb.html">
                lib/net/ssh/transport/ossl/hmac/sha1.rb
                </a>
        <br />
            </td>
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  <!-- banner header -->

  <div id="bodyContent">



  <div id="contextContent">



   </div>

    <div id="method-list">
      <h3 class="section-bar">Methods</h3>

      <div class="name-list">
      <a href="#M000014">register_services</a>&nbsp;&nbsp;
      <a href="#M000015">version_check</a>&nbsp;&nbsp;
      </div>
    </div>

  </div>


    <!-- if includes -->

    <div id="section">

    <div id="class-list">
      <h3 class="section-bar">Classes and Modules</h3>

      Module <a href="OSSL/HMAC.html" class="link">Net::SSH::Transport::OSSL::HMAC</a><br />
Module <a href="OSSL/ReaderBufferImpl.html" class="link">Net::SSH::Transport::OSSL::ReaderBufferImpl</a><br />
Class <a href="OSSL/Buffer.html" class="link">Net::SSH::Transport::OSSL::Buffer</a><br />
Class <a href="OSSL/BufferFactory.html" class="link">Net::SSH::Transport::OSSL::BufferFactory</a><br />
Class <a href="OSSL/CipherFactory.html" class="link">Net::SSH::Transport::OSSL::CipherFactory</a><br />
Class <a href="OSSL/DigestFactory.html" class="link">Net::SSH::Transport::OSSL::DigestFactory</a><br />
Class <a href="OSSL/HMACFactory.html" class="link">Net::SSH::Transport::OSSL::HMACFactory</a><br />
Class <a href="OSSL/KeyFactory.html" class="link">Net::SSH::Transport::OSSL::KeyFactory</a><br />
Class <a href="OSSL/ReaderBuffer.html" class="link">Net::SSH::Transport::OSSL::ReaderBuffer</a><br />

    </div>




      


    <!-- if method_list -->
    <div id="methods">
      <h3 class="section-bar">Public Instance methods</h3>

      <div id="method-M000014" class="method-detail">
        <a name="M000014"></a>

        <div class="method-heading">
          <a href="#M000014" class="method-signature">
          <span class="method-name">register_services</span><span class="method-args">( container )</span>
          </a>
        </div>
      
        <div class="method-description">
          <p>
Register all <a href="../../../OpenSSL.html">OpenSSL</a>-related services.
</p>
          <p><a class="source-toggle" href="#"
            onclick="toggleCode('M000014-source');return false;">[Source]</a></p>
          <div class="method-source-code" id="M000014-source">
<pre>
     <span class="ruby-comment cmt"># File lib/net/ssh/transport/ossl/services.rb, line 25</span>
 25:         <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">register_services</span>( <span class="ruby-identifier">container</span> )
 26:           <span class="ruby-comment cmt"># make sure the user has a valid Ruby and OpenSSL installed.</span>
 27:           <span class="ruby-identifier">version_check</span>
 28: 
 29:           <span class="ruby-comment cmt"># Register all OpenSSL services in the :ossl namespace.</span>
 30:           <span class="ruby-identifier">container</span>.<span class="ruby-identifier">namespace_define</span> <span class="ruby-identifier">:ossl</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">b</span><span class="ruby-operator">|</span>
 31: 
 32:             <span class="ruby-comment cmt"># The list of known sources of HMAC algorithm implementations.</span>
 33:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">hmac_algorithm_sources</span> { <span class="ruby-constant">Array</span>.<span class="ruby-identifier">new</span> }
 34:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">require</span> <span class="ruby-value str">'net/ssh/transport/ossl/hmac/services'</span>, <span class="ruby-node">&quot;#{self}::HMAC&quot;</span>
 35: 
 36:             <span class="ruby-comment cmt"># The hash mapping SSH2 cipher names to OpenSSL cipher names.</span>
 37:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">cipher_names</span> <span class="ruby-keyword kw">do</span>
 38:               <span class="ruby-constant">Hash</span>[ <span class="ruby-value str">&quot;3des-cbc&quot;</span>     =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;des-ede3-cbc&quot;</span>,
 39:                     <span class="ruby-value str">&quot;blowfish-cbc&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;bf-cbc&quot;</span>,
 40:                     <span class="ruby-value str">&quot;aes256-cbc&quot;</span>   =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;aes-256-cbc&quot;</span>,
 41:                     <span class="ruby-value str">&quot;aes192-cbc&quot;</span>   =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;aes-192-cbc&quot;</span>,
 42:                     <span class="ruby-value str">&quot;aes128-cbc&quot;</span>   =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;aes-128-cbc&quot;</span>,
 43:                     <span class="ruby-value str">&quot;idea-cbc&quot;</span>     =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;idea-cbc&quot;</span>,
 44:                     <span class="ruby-value str">&quot;none&quot;</span>         =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;none&quot;</span> ]
 45:             <span class="ruby-keyword kw">end</span>
 46: 
 47:             <span class="ruby-comment cmt"># The hash mapping key names to OpenSSL key implementations.</span>
 48:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">key_names</span> <span class="ruby-keyword kw">do</span>
 49:               <span class="ruby-constant">Hash</span>[ <span class="ruby-value str">&quot;dh&quot;</span>  =<span class="ruby-operator">&gt;</span> <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">PKey</span><span class="ruby-operator">::</span><span class="ruby-constant">DH</span>,
 50:                     <span class="ruby-value str">&quot;rsa&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">PKey</span><span class="ruby-operator">::</span><span class="ruby-constant">RSA</span>,
 51:                     <span class="ruby-value str">&quot;dsa&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">PKey</span><span class="ruby-operator">::</span><span class="ruby-constant">DSA</span> ]
 52:             <span class="ruby-keyword kw">end</span>
 53: 
 54:             <span class="ruby-comment cmt"># The hash mapping digest names to OpenSSL digest implementations.</span>
 55:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">digest_names</span> <span class="ruby-keyword kw">do</span>
 56:               <span class="ruby-constant">Hash</span>[ <span class="ruby-value str">&quot;sha1&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">Digest</span><span class="ruby-operator">::</span><span class="ruby-constant">SHA1</span>,
 57:                     <span class="ruby-value str">&quot;md5&quot;</span>  =<span class="ruby-operator">&gt;</span> <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">Digest</span><span class="ruby-operator">::</span><span class="ruby-constant">MD5</span> ]
 58:             <span class="ruby-keyword kw">end</span>
 59: 
 60:             <span class="ruby-comment cmt"># The factory for converting cipher names to cipher implementations.</span>
 61:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">cipher_factory</span>( <span class="ruby-identifier">:model</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">:singleton_deferred</span> ) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">c</span>,<span class="ruby-identifier">p</span><span class="ruby-operator">|</span>
 62:               <span class="ruby-identifier">require</span> <span class="ruby-value str">'net/ssh/transport/ossl/cipher-factory'</span>
 63:               <span class="ruby-identifier">svc</span> = <span class="ruby-constant">CipherFactory</span>.<span class="ruby-identifier">new</span>( <span class="ruby-identifier">c</span>.<span class="ruby-identifier">cipher_names</span> )
 64:               <span class="ruby-identifier">svc</span>.<span class="ruby-identifier">identity_cipher</span> = <span class="ruby-identifier">c</span>.<span class="ruby-identifier">identity_cipher</span>
 65:               <span class="ruby-identifier">svc</span>
 66:             <span class="ruby-keyword kw">end</span>
 67: 
 68:             <span class="ruby-comment cmt"># The factory for converting HMAC names to HMAC implementations.</span>
 69:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">hmac_factory</span>( <span class="ruby-identifier">:model</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">:singleton_deferred</span> ) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">c</span>,<span class="ruby-identifier">p</span><span class="ruby-operator">|</span>
 70:               <span class="ruby-identifier">require</span> <span class="ruby-value str">'net/ssh/transport/ossl/hmac-factory'</span>
 71:               <span class="ruby-constant">HMACFactory</span>.<span class="ruby-identifier">new</span>( <span class="ruby-identifier">c</span>.<span class="ruby-identifier">hmac_algorithm_sources</span> )
 72:             <span class="ruby-keyword kw">end</span>
 73: 
 74:             <span class="ruby-comment cmt"># The factory for obtaining OpenSSL-specific buffer implementations.</span>
 75:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">buffer_factory</span> <span class="ruby-keyword kw">do</span>
 76:               <span class="ruby-identifier">require</span> <span class="ruby-value str">'net/ssh/transport/ossl/buffer-factory'</span>
 77:               <span class="ruby-constant">BufferFactory</span>.<span class="ruby-identifier">new</span>
 78:             <span class="ruby-keyword kw">end</span>
 79: 
 80:             <span class="ruby-comment cmt"># The factory for converting key names to key implementations.</span>
 81:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">key_factory</span>( <span class="ruby-identifier">:model</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">:singleton_deferred</span> ) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">c</span>,<span class="ruby-identifier">p</span><span class="ruby-operator">|</span>
 82:               <span class="ruby-identifier">require</span> <span class="ruby-value str">'net/ssh/transport/ossl/key-factory'</span>
 83:               <span class="ruby-identifier">svc</span> = <span class="ruby-constant">KeyFactory</span>.<span class="ruby-identifier">new</span>( <span class="ruby-identifier">c</span>.<span class="ruby-identifier">key_names</span> )
 84:               <span class="ruby-identifier">svc</span>.<span class="ruby-identifier">buffers</span> = <span class="ruby-identifier">c</span>.<span class="ruby-identifier">buffer_factory</span>
 85:               <span class="ruby-identifier">svc</span>.<span class="ruby-identifier">prompter</span> = <span class="ruby-identifier">c</span>.<span class="ruby-identifier">prompter</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">c</span>.<span class="ruby-identifier">knows_key?</span>( <span class="ruby-identifier">:prompter</span> )
 86:               <span class="ruby-identifier">svc</span>
 87:             <span class="ruby-keyword kw">end</span>
 88: 
 89:             <span class="ruby-comment cmt"># The factory for creating OpenSSL::BN (big number) instances.</span>
 90:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">bn_factory</span> { <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">BN</span> }
 91: 
 92:             <span class="ruby-comment cmt"># The factory for converting digest names to digest implementations.</span>
 93:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">digest_factory</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">c</span>,<span class="ruby-identifier">p</span><span class="ruby-operator">|</span>
 94:               <span class="ruby-identifier">require</span> <span class="ruby-value str">'net/ssh/transport/ossl/digest-factory'</span>
 95:               <span class="ruby-constant">DigestFactory</span>.<span class="ruby-identifier">new</span>( <span class="ruby-identifier">c</span>.<span class="ruby-identifier">digest_names</span> )
 96:             <span class="ruby-keyword kw">end</span>
 97: 
 98:           <span class="ruby-keyword kw">end</span>
 99: 
100:           <span class="ruby-comment cmt"># Register each of the factories defined above in the corresponding</span>
101:           <span class="ruby-comment cmt"># factory map, under the :ossl key.</span>
102:           <span class="ruby-identifier">container</span>.<span class="ruby-identifier">define</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">b</span><span class="ruby-operator">|</span>
103:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">cipher_factories</span>[<span class="ruby-identifier">:ossl</span>] = <span class="ruby-identifier">b</span>.<span class="ruby-identifier">ossl</span>.<span class="ruby-identifier">cipher_factory</span>
104:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">hmac_factories</span>[<span class="ruby-identifier">:ossl</span>]   = <span class="ruby-identifier">b</span>.<span class="ruby-identifier">ossl</span>.<span class="ruby-identifier">hmac_factory</span>
105:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">key_factories</span>[<span class="ruby-identifier">:ossl</span>]    = <span class="ruby-identifier">b</span>.<span class="ruby-identifier">ossl</span>.<span class="ruby-identifier">key_factory</span>
106:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">buffer_factories</span>[<span class="ruby-identifier">:ossl</span>] = <span class="ruby-identifier">b</span>.<span class="ruby-identifier">ossl</span>.<span class="ruby-identifier">buffer_factory</span>
107:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">bn_factories</span>[<span class="ruby-identifier">:ossl</span>]     = <span class="ruby-identifier">b</span>.<span class="ruby-identifier">ossl</span>.<span class="ruby-identifier">bn_factory</span>
108:             <span class="ruby-identifier">b</span>.<span class="ruby-identifier">digest_factories</span>[<span class="ruby-identifier">:ossl</span>] = <span class="ruby-identifier">b</span>.<span class="ruby-identifier">ossl</span>.<span class="ruby-identifier">digest_factory</span>
109:           <span class="ruby-keyword kw">end</span>
110:         <span class="ruby-keyword kw">end</span>
</pre>
          </div>
        </div>
      </div>

      <div id="method-M000015" class="method-detail">
        <a name="M000015"></a>

        <div class="method-heading">
          <a href="#M000015" class="method-signature">
          <span class="method-name">version_check</span><span class="method-args">()</span>
          </a>
        </div>
      
        <div class="method-description">
          <p>
Tries to make sure that the correct minimum versions of libraries are
installed.
</p>
          <p><a class="source-toggle" href="#"
            onclick="toggleCode('M000015-source');return false;">[Source]</a></p>
          <div class="method-source-code" id="M000015-source">
<pre>
     <span class="ruby-comment cmt"># File lib/net/ssh/transport/ossl/services.rb, line 115</span>
115:         <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">version_check</span>
116:           <span class="ruby-keyword kw">if</span> <span class="ruby-constant">RUBY_VERSION</span> <span class="ruby-operator">&lt;</span> <span class="ruby-value str">&quot;1.8.2&quot;</span>
117:             <span class="ruby-keyword kw">unless</span> <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">PKey</span><span class="ruby-operator">::</span><span class="ruby-constant">DH</span>.<span class="ruby-identifier">instance_methods</span>.<span class="ruby-identifier">include?</span> <span class="ruby-value str">&quot;p&quot;</span>
118:               <span class="ruby-identifier">warn</span> <span class="ruby-value str">&quot;Your OpenSSL module (the Ruby module, not the library)\n&quot;</span> <span class="ruby-operator">+</span>
119:                    <span class="ruby-value str">&quot;is too old. Please go to the Net::SSH downloads page\n&quot;</span> <span class="ruby-operator">+</span>
120:                    <span class="ruby-value str">&quot;and install the most recent snapshot of the OpenSSL\n&quot;</span> <span class="ruby-operator">+</span>
121:                    <span class="ruby-value str">&quot;module.\n\n&quot;</span> <span class="ruby-operator">+</span>
122:                    <span class="ruby-value str">&quot;  http://rubyforge.org/projects/net-ssh&quot;</span>
123:               <span class="ruby-identifier">abort</span>
124:             <span class="ruby-keyword kw">end</span>
125:           <span class="ruby-keyword kw">end</span>
126: 
127:           <span class="ruby-comment cmt"># make sure that the OpenSSL library itself is at least version 0.9.7</span>
128:           <span class="ruby-identifier">match</span> = <span class="ruby-constant">OpenSSL</span><span class="ruby-operator">::</span><span class="ruby-constant">OPENSSL_VERSION</span>.<span class="ruby-identifier">match</span>(
129:             <span class="ruby-regexp re">/OpenSSL (\d+)\.(\d+)\.(\d+)(.*?) /</span> )
130:           <span class="ruby-identifier">major</span> = <span class="ruby-identifier">match</span>[<span class="ruby-value">1</span>].<span class="ruby-identifier">to_i</span>
131:           <span class="ruby-identifier">minor</span> = <span class="ruby-identifier">match</span>[<span class="ruby-value">2</span>].<span class="ruby-identifier">to_i</span>
132:           <span class="ruby-identifier">tiny</span> = <span class="ruby-identifier">match</span>[<span class="ruby-value">3</span>].<span class="ruby-identifier">to_i</span>
133:           <span class="ruby-identifier">patch</span> = <span class="ruby-identifier">match</span>[<span class="ruby-value">4</span>]
134: 
135:           <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">major</span> <span class="ruby-operator">&lt;</span> <span class="ruby-value">1</span> <span class="ruby-operator">&amp;&amp;</span> ( <span class="ruby-identifier">minor</span> <span class="ruby-operator">&lt;</span> <span class="ruby-value">9</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">minor</span> <span class="ruby-operator">==</span> <span class="ruby-value">9</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">tiny</span> <span class="ruby-operator">&lt;</span> <span class="ruby-value">7</span> )
136:             <span class="ruby-identifier">ver</span> = <span class="ruby-node">&quot;#{major}.#{minor}.#{tiny}#{patch}&quot;</span>
137:             <span class="ruby-identifier">warn</span> <span class="ruby-value str">&quot;Your OpenSSL library (the library itself, not the Ruby\n&quot;</span> <span class="ruby-operator">+</span>
138:                  <span class="ruby-node">&quot;module) is version #{ver}, too old to use with Net::SSH.\n&quot;</span> <span class="ruby-operator">+</span>
139:                  <span class="ruby-value str">&quot;Please upgrade to at least version 0.9.7 and then rebuild\n&quot;</span> <span class="ruby-operator">+</span>
140:                  <span class="ruby-value str">&quot;your Ruby OpenSSL module.&quot;</span>
141:             <span class="ruby-identifier">abort</span>
142:           <span class="ruby-keyword kw">end</span>
143:         <span class="ruby-keyword kw">end</span>
</pre>
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