jenkins-metasploit
1214 lines
75 KiB
HTML
1214 lines
75 KiB
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Class: Rex::Parser::NTFS
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— Documentation by YARD 0.9.37
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<a href="../../_index.html">Index (N)</a> »
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<span class='title'><span class='object_link'><a href="../../Rex.html" title="Rex (module)">Rex</a></span></span> » <span class='title'><span class='object_link'><a href="../Parser.html" title="Rex::Parser (module)">Parser</a></span></span>
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<span class="title">NTFS</span>
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<div id="content"><h1>Class: Rex::Parser::NTFS
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</h1>
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<div class="box_info">
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<dl>
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<dt>Inherits:</dt>
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<dd>
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<span class="inheritName">Object</span>
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<ul class="fullTree">
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<li>Object</li>
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<li class="next">Rex::Parser::NTFS</li>
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</ul>
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<a href="#" class="inheritanceTree">show all</a>
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</dd>
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<dl>
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<dt>Defined in:</dt>
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<dd>lib/rex/parser/fs/ntfs.rb</dd>
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</dl>
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</div>
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<h2>Overview</h2><div class="docstring">
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<div class="discussion">
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<p>This class parses the contents of an NTFS partition file. Author : Danil Bazin <<a href="at">danil.bazin</a>hsc.fr> @danilbaz</p>
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</div>
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<div class="tags">
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</div>
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<h2>
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Constant Summary
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<small><a href="#" class="constants_summary_toggle">collapse</a></small>
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</h2>
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<dl class="constants">
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<dt id="DATA_ATTRIBUTE_ID-constant" class="">DATA_ATTRIBUTE_ID =
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<div class="docstring">
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<div class="discussion">
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<p>Initialize the NTFS class with an already open file handler</p>
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</div>
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</div>
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<div class="tags">
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</dt>
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<dd><pre class="code"><span class='int'>128</span></pre></dd>
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<dt id="INDEX_ROOT_ID-constant" class="">INDEX_ROOT_ID =
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</dt>
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<dd><pre class="code"><span class='int'>144</span></pre></dd>
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<dt id="INDEX_ALLOCATION_ID-constant" class="">INDEX_ALLOCATION_ID =
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</dt>
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<dd><pre class="code"><span class='int'>160</span></pre></dd>
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</dl>
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<h2>
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Instance Method Summary
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<small><a href="#" class="summary_toggle">collapse</a></small>
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<ul class="summary">
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<li class="public ">
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<span class="summary_signature">
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<a href="#cluster_from_attribute_non_resident-instance_method" title="#cluster_from_attribute_non_resident (instance method)">#<strong>cluster_from_attribute_non_resident</strong>(attribute, cluster_num = 0, size_max = ((2**31) - 1)) ⇒ Object </a>
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<span class="summary_desc"><div class='inline'></div></span>
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<li class="public ">
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<span class="summary_signature">
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<a href="#file-instance_method" title="#file (instance method)">#<strong>file</strong>(path) ⇒ Object </a>
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<span class="summary_desc"><div class='inline'>
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<p>return the file path in the NTFS partition.</p>
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</div></span>
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<li class="public ">
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<span class="summary_signature">
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<a href="#file_content_from_mft_num-instance_method" title="#file_content_from_mft_num (instance method)">#<strong>file_content_from_mft_num</strong>(mft_num, size) ⇒ Object </a>
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<span class="summary_desc"><div class='inline'>
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<p>Get the file from the MFT number The size must be given because the $FILENAME attribute in the MFT entry does not contain it The file is in $DATA (128) Attribute.</p>
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</div></span>
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<span class="summary_signature">
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<a href="#filename_from_filenameattribute-instance_method" title="#filename_from_filenameattribute (instance method)">#<strong>filename_from_filenameattribute</strong>(attribute) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Gather the name of the file from the $FILENAME (64) attribute.</p>
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</div></span>
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<li class="public ">
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<span class="summary_signature">
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<a href="#index_list_from_attributes-instance_method" title="#index_list_from_attributes (instance method)">#<strong>index_list_from_attributes</strong>(attributes) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>return the list of files in attribute directory and their MFT number and size.</p>
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</div></span>
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<span class="summary_signature">
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<a href="#initialize-instance_method" title="#initialize (instance method)">#<strong>initialize</strong>(file_handler) ⇒ NTFS </a>
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</span>
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<span class="note title constructor">constructor</span>
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<span class="summary_desc"><div class='inline'>
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<p>A new instance of NTFS.</p>
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</div></span>
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</li>
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<span class="summary_signature">
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<a href="#mft_record_attribute-instance_method" title="#mft_record_attribute (instance method)">#<strong>mft_record_attribute</strong>(mft_record, lazy = true) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>return the attribute list from the MFT record deal with resident and non resident attributes (but not $DATA due to performance issue) if lazy = True, this function only gather essential non resident attributes (INDEX_ALLOCATION).</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#mft_record_from_mft_num-instance_method" title="#mft_record_from_mft_num (instance method)">#<strong>mft_record_from_mft_num</strong>(mft_num) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Gather the MFT entry corresponding to his number.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#parse_index-instance_method" title="#parse_index (instance method)">#<strong>parse_index</strong>(index_entry) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>parse one index record and return the name, MFT number and size of the file.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#parse_index_list-instance_method" title="#parse_index_list (instance method)">#<strong>parse_index_list</strong>(index_record, index_allocation_attribute) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>parse index_record in $INDEX_ROOT and recursively index_record in INDEX_ALLOCATION.</p>
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</div></span>
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</li>
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<li class="public ">
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<span class="summary_signature">
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<a href="#real_size_from_filenameattribute-instance_method" title="#real_size_from_filenameattribute (instance method)">#<strong>real_size_from_filenameattribute</strong>(attribute) ⇒ Object </a>
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</span>
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<span class="summary_desc"><div class='inline'>
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<p>Get the size of the file in the $FILENAME (64) attribute.</p>
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</div></span>
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</li>
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</ul>
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<div id="constructor_details" class="method_details_list">
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<h2>Constructor Details</h2>
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<div class="method_details first">
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<h3 class="signature first" id="initialize-instance_method">
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#<strong>initialize</strong>(file_handler) ⇒ <tt><span class='object_link'><a href="" title="Rex::Parser::NTFS (class)">NTFS</a></span></tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>Returns a new instance of NTFS.</p>
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</div>
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</div>
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<div class="tags">
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</div><table class="source_code">
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35</pre>
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</td>
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<td>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 17</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span><span class='lparen'>(</span><span class='id identifier rubyid_file_handler'>file_handler</span><span class='rparen'>)</span>
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<span class='ivar'>@file_handler</span> <span class='op'>=</span> <span class='id identifier rubyid_file_handler'>file_handler</span>
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<span class='id identifier rubyid_data'>data</span> <span class='op'>=</span> <span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='int'>4096</span><span class='rparen'>)</span>
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<span class='comment'># Boot sector reading
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</span> <span class='ivar'>@bytes_per_sector</span> <span class='op'>=</span> <span class='id identifier rubyid_data'>data</span><span class='lbracket'>[</span><span class='int'>11</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='ivar'>@sector_per_cluster</span> <span class='op'>=</span> <span class='id identifier rubyid_data'>data</span><span class='lbracket'>[</span><span class='int'>13</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>C</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='ivar'>@cluster_per_mft_record</span> <span class='op'>=</span> <span class='id identifier rubyid_data'>data</span><span class='lbracket'>[</span><span class='int'>64</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>c</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='kw'>if</span> <span class='ivar'>@cluster_per_mft_record</span> <span class='op'><</span> <span class='int'>0</span>
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<span class='ivar'>@bytes_per_mft_record</span> <span class='op'>=</span> <span class='int'>2</span><span class='op'>**</span><span class='lparen'>(</span><span class='op'>-</span><span class='ivar'>@cluster_per_mft_record</span><span class='rparen'>)</span>
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<span class='ivar'>@cluster_per_mft_record</span> <span class='op'>=</span> <span class='ivar'>@bytes_per_mft_record</span><span class='period'>.</span><span class='id identifier rubyid_to_f'>to_f</span> <span class='op'>/</span> <span class='ivar'>@bytes_per_sector</span> <span class='op'>/</span> <span class='ivar'>@sector_per_cluster</span>
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<span class='kw'>else</span>
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<span class='ivar'>@bytes_per_mft_record</span> <span class='op'>=</span> <span class='ivar'>@bytes_per_sector</span> <span class='op'>*</span> <span class='ivar'>@sector_per_cluster</span> <span class='op'>*</span> <span class='ivar'>@cluster_per_mft_record</span>
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<span class='kw'>end</span>
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<span class='ivar'>@bytes_per_cluster</span> <span class='op'>=</span> <span class='ivar'>@sector_per_cluster</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_sector</span>
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<span class='ivar'>@mft_logical_cluster_number</span> <span class='op'>=</span> <span class='id identifier rubyid_data'>data</span><span class='lbracket'>[</span><span class='int'>48</span><span class='comma'>,</span> <span class='int'>8</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q<</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='ivar'>@mft_offset</span> <span class='op'>=</span> <span class='ivar'>@mft_logical_cluster_number</span> <span class='op'>*</span> <span class='ivar'>@sector_per_cluster</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_sector</span>
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<span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_seek'>seek</span><span class='lparen'>(</span><span class='ivar'>@mft_offset</span><span class='rparen'>)</span>
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<span class='ivar'>@mft</span> <span class='op'>=</span> <span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='ivar'>@bytes_per_mft_record</span><span class='rparen'>)</span>
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<span class='kw'>end</span></pre>
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</td>
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</table>
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</div>
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</div>
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<div id="instance_method_details" class="method_details_list">
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<h2>Instance Method Details</h2>
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<div class="method_details first">
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<h3 class="signature first" id="cluster_from_attribute_non_resident-instance_method">
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#<strong>cluster_from_attribute_non_resident</strong>(attribute, cluster_num = 0, size_max = ((2**31) - 1)) ⇒ <tt>Object</tt>
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195</pre>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 148</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_cluster_from_attribute_non_resident'>cluster_from_attribute_non_resident</span><span class='lparen'>(</span><span class='id identifier rubyid_attribute'>attribute</span><span class='comma'>,</span> <span class='id identifier rubyid_cluster_num'>cluster_num</span> <span class='op'>=</span> <span class='int'>0</span><span class='comma'>,</span> <span class='id identifier rubyid_size_max'>size_max</span> <span class='op'>=</span> <span class='lparen'>(</span><span class='lparen'>(</span><span class='int'>2</span><span class='op'>**</span><span class='int'>31</span><span class='rparen'>)</span> <span class='op'>-</span> <span class='int'>1</span><span class='rparen'>)</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_lowvcn'>lowvcn</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span><span class='lbracket'>[</span><span class='int'>16</span><span class='comma'>,</span> <span class='int'>8</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q<</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_highvcn'>highvcn</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span><span class='lbracket'>[</span><span class='int'>24</span><span class='comma'>,</span> <span class='int'>8</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q<</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
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<span class='id identifier rubyid_offset'>offset</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span><span class='lbracket'>[</span><span class='int'>32</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_real_size'>real_size</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span><span class='lbracket'>[</span><span class='int'>48</span><span class='comma'>,</span> <span class='int'>8</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q<</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_attribut'>attribut</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span>
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<span class='id identifier rubyid_run_list_num'>run_list_num</span> <span class='op'>=</span> <span class='id identifier rubyid_lowvcn'>lowvcn</span>
|
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<span class='id identifier rubyid_old_offset'>old_offset</span> <span class='op'>=</span> <span class='int'>0</span>
|
|
<span class='kw'>while</span> <span class='id identifier rubyid_run_list_num'>run_list_num</span> <span class='op'><=</span> <span class='id identifier rubyid_highvcn'>highvcn</span>
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<span class='id identifier rubyid_first_runlist_byte'>first_runlist_byte</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset'>offset</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_ord'>ord</span>
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<span class='id identifier rubyid_run_offset_size'>run_offset_size</span> <span class='op'>=</span> <span class='id identifier rubyid_first_runlist_byte'>first_runlist_byte</span> <span class='op'>>></span> <span class='int'>4</span>
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<span class='id identifier rubyid_run_length_size'>run_length_size</span> <span class='op'>=</span> <span class='id identifier rubyid_first_runlist_byte'>first_runlist_byte</span> <span class='op'>&</span> <span class='int'>15</span>
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<span class='id identifier rubyid_run_length'>run_length</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset'>offset</span> <span class='op'>+</span> <span class='int'>1</span><span class='comma'>,</span> <span class='id identifier rubyid_run_length_size'>run_length_size</span><span class='rbracket'>]</span>
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|
<span class='id identifier rubyid_run_length'>run_length</span> <span class='op'>+=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>\x00</span><span class='tstring_end'>"</span></span> <span class='op'>*</span> <span class='lparen'>(</span><span class='int'>8</span> <span class='op'>-</span> <span class='id identifier rubyid_run_length_size'>run_length_size</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_run_length'>run_length</span> <span class='op'>=</span> <span class='id identifier rubyid_run_length'>run_length</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q<</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_offset_run_offset'>offset_run_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_offset'>offset</span> <span class='op'>+</span> <span class='int'>1</span> <span class='op'>+</span> <span class='id identifier rubyid_run_length_size'>run_length_size</span>
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<span class='id identifier rubyid_run_offset'>run_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset_run_offset'>offset_run_offset</span><span class='comma'>,</span> <span class='id identifier rubyid_run_offset_size'>run_offset_size</span><span class='rbracket'>]</span>
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<span class='kw'>if</span> <span class='id identifier rubyid_run_offset'>run_offset</span><span class='lbracket'>[</span><span class='op'>-</span><span class='int'>1</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_ord'>ord</span> <span class='op'>&</span> <span class='int'>128</span> <span class='op'>==</span> <span class='int'>128</span>
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<span class='id identifier rubyid_run_offset'>run_offset</span> <span class='op'>+=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>\xFF</span><span class='tstring_end'>"</span></span> <span class='op'>*</span> <span class='lparen'>(</span><span class='int'>8</span> <span class='op'>-</span> <span class='id identifier rubyid_run_offset_size'>run_offset_size</span><span class='rparen'>)</span>
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<span class='kw'>else</span>
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<span class='id identifier rubyid_run_offset'>run_offset</span> <span class='op'>+=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>\x00</span><span class='tstring_end'>"</span></span> <span class='op'>*</span> <span class='lparen'>(</span><span class='int'>8</span> <span class='op'>-</span> <span class='id identifier rubyid_run_offset_size'>run_offset_size</span><span class='rparen'>)</span>
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<span class='kw'>end</span>
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<span class='id identifier rubyid_run_offset'>run_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_run_offset'>run_offset</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>q<</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='comment'>#offset relative to previous offset
|
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</span> <span class='id identifier rubyid_run_offset'>run_offset</span> <span class='op'>+=</span> <span class='id identifier rubyid_old_offset'>old_offset</span>
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<span class='id identifier rubyid_size_wanted'>size_wanted</span> <span class='op'>=</span> <span class='lbracket'>[</span><span class='id identifier rubyid_run_length'>run_length</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_cluster</span><span class='comma'>,</span> <span class='id identifier rubyid_size_max'>size_max</span> <span class='op'>-</span> <span class='id identifier rubyid_attribut'>attribut</span><span class='period'>.</span><span class='id identifier rubyid_length'>length</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_min'>min</span>
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<span class='kw'>if</span> <span class='id identifier rubyid_cluster_num'>cluster_num</span> <span class='op'>+</span> <span class='lparen'>(</span><span class='id identifier rubyid_size_max'>size_max</span> <span class='op'>/</span> <span class='ivar'>@bytes_per_cluster</span><span class='rparen'>)</span> <span class='op'>>=</span> <span class='id identifier rubyid_run_list_num'>run_list_num</span> <span class='op'>&&</span> <span class='lparen'>(</span><span class='id identifier rubyid_cluster_num'>cluster_num</span> <span class='op'><</span> <span class='id identifier rubyid_run_length'>run_length</span> <span class='op'>+</span> <span class='id identifier rubyid_run_list_num'>run_list_num</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_run_list_offset_in_cluster'>run_list_offset_in_cluster</span> <span class='op'>=</span> <span class='id identifier rubyid_run_offset'>run_offset</span> <span class='op'>+</span> <span class='lbracket'>[</span><span class='id identifier rubyid_cluster_num'>cluster_num</span> <span class='op'>-</span> <span class='id identifier rubyid_run_list_num'>run_list_num</span><span class='comma'>,</span> <span class='int'>0</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_max'>max</span>
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<span class='id identifier rubyid_run_list_offset'>run_list_offset</span> <span class='op'>=</span> <span class='lparen'>(</span><span class='id identifier rubyid_run_list_offset_in_cluster'>run_list_offset_in_cluster</span><span class='rparen'>)</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_cluster</span>
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<span class='id identifier rubyid_run_list_offset'>run_list_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_run_list_offset'>run_list_offset</span><span class='period'>.</span><span class='id identifier rubyid_to_i'>to_i</span>
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<span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_seek'>seek</span><span class='lparen'>(</span><span class='id identifier rubyid_run_list_offset'>run_list_offset</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_data'>data</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span>
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<span class='kw'>while</span> <span class='id identifier rubyid_data'>data</span><span class='period'>.</span><span class='id identifier rubyid_length'>length</span> <span class='op'><</span> <span class='id identifier rubyid_size_wanted'>size_wanted</span>
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<span class='comment'># Use a 4Mb block size to avoid target memory consumption
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</span> <span class='id identifier rubyid_data'>data</span> <span class='op'><<</span> <span class='ivar'>@file_handler</span><span class='period'>.</span><span class='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='lbracket'>[</span><span class='id identifier rubyid_size_wanted'>size_wanted</span> <span class='op'>-</span> <span class='id identifier rubyid_data'>data</span><span class='period'>.</span><span class='id identifier rubyid_length'>length</span><span class='comma'>,</span> <span class='int'>2</span><span class='op'>**</span><span class='int'>22</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_min'>min</span><span class='rparen'>)</span>
|
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<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_attribut'>attribut</span> <span class='op'><<</span> <span class='id identifier rubyid_data'>data</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_offset'>offset</span> <span class='op'>+=</span> <span class='id identifier rubyid_run_offset_size'>run_offset_size</span> <span class='op'>+</span> <span class='id identifier rubyid_run_length_size'>run_length_size</span> <span class='op'>+</span> <span class='int'>1</span>
|
|
<span class='id identifier rubyid_run_list_num'>run_list_num</span> <span class='op'>+=</span> <span class='id identifier rubyid_run_length'>run_length</span>
|
|
<span class='id identifier rubyid_old_offset'>old_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_run_offset'>run_offset</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_attribut'>attribut</span> <span class='op'>=</span> <span class='id identifier rubyid_attribut'>attribut</span><span class='lbracket'>[</span><span class='int'>0</span><span class='comma'>,</span> <span class='id identifier rubyid_real_size'>real_size</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_attribut'>attribut</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
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</tr>
|
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</table>
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</div>
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|
|
<div class="method_details ">
|
|
<h3 class="signature " id="file-instance_method">
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|
|
#<strong>file</strong>(path) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
|
|
<div class="discussion">
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|
<p>return the file path in the NTFS partition</p>
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</div>
|
|
</div>
|
|
<div class="tags">
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254</pre>
|
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</td>
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<td>
|
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 241</span>
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|
<span class='kw'>def</span> <span class='id identifier rubyid_file'>file</span><span class='lparen'>(</span><span class='id identifier rubyid_path'>path</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_repertory'>repertory</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record_from_mft_num'>mft_record_from_mft_num</span><span class='lparen'>(</span><span class='int'>5</span><span class='rparen'>)</span>
|
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<span class='id identifier rubyid_index_entry'>index_entry</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
|
|
<span class='id identifier rubyid_path'>path</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>\\</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_r'>r</span><span class='op'>|</span>
|
|
<span class='id identifier rubyid_attributes'>attributes</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record_attribute'>mft_record_attribute</span><span class='lparen'>(</span><span class='id identifier rubyid_repertory'>repertory</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_index'>index</span> <span class='op'>=</span> <span class='id identifier rubyid_index_list_from_attributes'>index_list_from_attributes</span><span class='lparen'>(</span><span class='id identifier rubyid_attributes'>attributes</span><span class='rparen'>)</span>
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<span class='kw'>unless</span> <span class='id identifier rubyid_index'>index</span><span class='period'>.</span><span class='id identifier rubyid_key?'>key?</span><span class='lparen'>(</span><span class='id identifier rubyid_r'>r</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_fail'>fail</span> <span class='const'>ArgumentError</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>File path does not exist</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='id identifier rubyid_caller'>caller</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_index_entry'>index_entry</span> <span class='op'>=</span> <span class='id identifier rubyid_index'>index</span><span class='lbracket'>[</span><span class='id identifier rubyid_r'>r</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_repertory'>repertory</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record_from_mft_num'>mft_record_from_mft_num</span><span class='lparen'>(</span><span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>mft_offset</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span><span class='rparen'>)</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_file_content_from_mft_num'>file_content_from_mft_num</span><span class='lparen'>(</span><span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>mft_offset</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span><span class='comma'>,</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>file_size</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span><span class='rparen'>)</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
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</tr>
|
|
</table>
|
|
</div>
|
|
|
|
<div class="method_details ">
|
|
<h3 class="signature " id="file_content_from_mft_num-instance_method">
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|
|
|
#<strong>file_content_from_mft_num</strong>(mft_num, size) ⇒ <tt>Object</tt>
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|
|
</h3><div class="docstring">
|
|
<div class="discussion">
|
|
|
|
<p>Get the file from the MFT number The size must be given because the $FILENAME attribute in the MFT entry does not contain it The file is in $DATA (128) Attribute</p>
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</div>
|
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|
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<div class="tags">
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<td>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 71</span>
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|
<span class='kw'>def</span> <span class='id identifier rubyid_file_content_from_mft_num'>file_content_from_mft_num</span><span class='lparen'>(</span><span class='id identifier rubyid_mft_num'>mft_num</span><span class='comma'>,</span> <span class='id identifier rubyid_size'>size</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_mft_record'>mft_record</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record_from_mft_num'>mft_record_from_mft_num</span><span class='lparen'>(</span><span class='id identifier rubyid_mft_num'>mft_num</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_attribute_list'>attribute_list</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record_attribute'>mft_record_attribute</span><span class='lparen'>(</span><span class='id identifier rubyid_mft_record'>mft_record</span><span class='rparen'>)</span>
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<span class='kw'>if</span> <span class='id identifier rubyid_attribute_list'>attribute_list</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#DATA_ATTRIBUTE_ID-constant" title="Rex::Parser::NTFS::DATA_ATTRIBUTE_ID (constant)">DATA_ATTRIBUTE_ID</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>resident</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span>
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<span class='kw'>return</span> <span class='id identifier rubyid_attribute_list'>attribute_list</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#DATA_ATTRIBUTE_ID-constant" title="Rex::Parser::NTFS::DATA_ATTRIBUTE_ID (constant)">DATA_ATTRIBUTE_ID</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>data</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span>
|
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<span class='kw'>else</span>
|
|
<span class='id identifier rubyid_data_attribute'>data_attribute</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute_list'>attribute_list</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#DATA_ATTRIBUTE_ID-constant" title="Rex::Parser::NTFS::DATA_ATTRIBUTE_ID (constant)">DATA_ATTRIBUTE_ID</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>data</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span>
|
|
<span class='kw'>return</span> <span class='id identifier rubyid_cluster_from_attribute_non_resident'>cluster_from_attribute_non_resident</span><span class='lparen'>(</span><span class='id identifier rubyid_data_attribute'>data_attribute</span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='comma'>,</span> <span class='id identifier rubyid_size'>size</span><span class='rbracket'>]</span>
|
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<span class='kw'>end</span>
|
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<span class='kw'>end</span></pre>
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</td>
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</table>
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</div>
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<div class="method_details ">
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<h3 class="signature " id="filename_from_filenameattribute-instance_method">
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#<strong>filename_from_filenameattribute</strong>(attribute) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>Gather the name of the file from the $FILENAME (64) attribute</p>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 57</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_filename_from_filenameattribute'>filename_from_filenameattribute</span><span class='lparen'>(</span><span class='id identifier rubyid_attribute'>attribute</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_filename_attribute'>filename_attribute</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span>
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<span class='id identifier rubyid_length_of_name'>length_of_name</span> <span class='op'>=</span> <span class='id identifier rubyid_filename_attribute'>filename_attribute</span><span class='lbracket'>[</span><span class='int'>64</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_ord'>ord</span>
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<span class='comment'># uft16 *2
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</span> <span class='id identifier rubyid_d'>d</span> <span class='op'>=</span> <span class='op'>::</span><span class='const'>Encoding</span><span class='op'>::</span><span class='const'>Converter</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>UTF-16LE</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>UTF-8</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
|
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<span class='id identifier rubyid_d'>d</span><span class='period'>.</span><span class='id identifier rubyid_convert'>convert</span><span class='lparen'>(</span><span class='id identifier rubyid_filename_attribute'>filename_attribute</span><span class='lbracket'>[</span><span class='int'>66</span><span class='comma'>,</span> <span class='lparen'>(</span><span class='id identifier rubyid_length_of_name'>length_of_name</span> <span class='op'>*</span> <span class='int'>2</span><span class='rparen'>)</span><span class='rbracket'>]</span><span class='rparen'>)</span>
|
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<span class='kw'>end</span></pre>
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</td>
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</table>
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</div>
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<div class="method_details ">
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<h3 class="signature " id="index_list_from_attributes-instance_method">
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#<strong>index_list_from_attributes</strong>(attributes) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>return the list of files in attribute directory and their MFT number and size</p>
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</div>
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</div>
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<div class="tags">
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 138</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_index_list_from_attributes'>index_list_from_attributes</span><span class='lparen'>(</span><span class='id identifier rubyid_attributes'>attributes</span><span class='rparen'>)</span>
|
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<span class='id identifier rubyid_index_root_attribute'>index_root_attribute</span> <span class='op'>=</span> <span class='id identifier rubyid_attributes'>attributes</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#INDEX_ROOT_ID-constant" title="Rex::Parser::NTFS::INDEX_ROOT_ID (constant)">INDEX_ROOT_ID</a></span></span><span class='rbracket'>]</span>
|
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<span class='id identifier rubyid_index_record'>index_record</span> <span class='op'>=</span> <span class='id identifier rubyid_index_root_attribute'>index_root_attribute</span><span class='lbracket'>[</span><span class='int'>16</span><span class='comma'>,</span> <span class='id identifier rubyid_index_root_attribute'>index_root_attribute</span><span class='period'>.</span><span class='id identifier rubyid_length'>length</span> <span class='op'>-</span> <span class='int'>16</span><span class='rbracket'>]</span>
|
|
<span class='kw'>if</span> <span class='id identifier rubyid_attributes'>attributes</span><span class='period'>.</span><span class='id identifier rubyid_key?'>key?</span><span class='lparen'>(</span><span class='const'><span class='object_link'><a href="#INDEX_ALLOCATION_ID-constant" title="Rex::Parser::NTFS::INDEX_ALLOCATION_ID (constant)">INDEX_ALLOCATION_ID</a></span></span><span class='rparen'>)</span>
|
|
<span class='kw'>return</span> <span class='id identifier rubyid_parse_index_list'>parse_index_list</span><span class='lparen'>(</span><span class='id identifier rubyid_index_record'>index_record</span><span class='comma'>,</span> <span class='id identifier rubyid_attributes'>attributes</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#INDEX_ALLOCATION_ID-constant" title="Rex::Parser::NTFS::INDEX_ALLOCATION_ID (constant)">INDEX_ALLOCATION_ID</a></span></span><span class='rbracket'>]</span><span class='rparen'>)</span>
|
|
<span class='kw'>else</span>
|
|
<span class='kw'>return</span> <span class='id identifier rubyid_parse_index_list'>parse_index_list</span><span class='lparen'>(</span><span class='id identifier rubyid_index_record'>index_record</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
|
|
<span class='kw'>end</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
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|
</tr>
|
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</table>
|
|
</div>
|
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|
|
<div class="method_details ">
|
|
<h3 class="signature " id="mft_record_attribute-instance_method">
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|
|
#<strong>mft_record_attribute</strong>(mft_record, lazy = true) ⇒ <tt>Object</tt>
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|
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</h3><div class="docstring">
|
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<div class="discussion">
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<p>return the attribute list from the MFT record deal with resident and non resident attributes (but not $DATA due to performance issue) if lazy = True, this function only gather essential non resident attributes (INDEX_ALLOCATION). Non resident attributes can still be gathered later with cluster_from_attribute_non_resident function.</p>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 204</span>
|
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|
|
<span class='kw'>def</span> <span class='id identifier rubyid_mft_record_attribute'>mft_record_attribute</span><span class='lparen'>(</span><span class='id identifier rubyid_mft_record'>mft_record</span><span class='comma'>,</span> <span class='id identifier rubyid_lazy'>lazy</span><span class='op'>=</span><span class='kw'>true</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_attribute_list_offset'>attribute_list_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='int'>20</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>C</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_curs'>curs</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute_list_offset'>attribute_list_offset</span>
|
|
<span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_res'>res</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
|
|
<span class='kw'>while</span> <span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span> <span class='op'>!=</span> <span class='int'>0xFFFFFFFF</span>
|
|
<span class='comment'># attribute_size=mft_record[curs + 4, 4].unpack('V')[0]
|
|
</span> <span class='comment'># should be on 4 bytes but doesnt work
|
|
</span> <span class='id identifier rubyid_attribute_size'>attribute_size</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span> <span class='op'>+</span> <span class='int'>4</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='comment'># resident
|
|
</span> <span class='kw'>if</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span> <span class='op'>+</span> <span class='int'>8</span><span class='rbracket'>]</span> <span class='op'>==</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>\x00</span><span class='tstring_end'>"</span></span>
|
|
<span class='id identifier rubyid_content_size'>content_size</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span> <span class='op'>+</span> <span class='int'>16</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_content_offset'>content_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span> <span class='op'>+</span> <span class='int'>20</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span> <span class='op'>+</span> <span class='id identifier rubyid_content_offset'>content_offset</span><span class='comma'>,</span> <span class='id identifier rubyid_content_size'>content_size</span><span class='rbracket'>]</span>
|
|
<span class='kw'>else</span>
|
|
<span class='comment'># non resident
|
|
</span> <span class='kw'>if</span> <span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span> <span class='op'>==</span> <span class='const'><span class='object_link'><a href="#INDEX_ALLOCATION_ID-constant" title="Rex::Parser::NTFS::INDEX_ALLOCATION_ID (constant)">INDEX_ALLOCATION_ID</a></span></span> <span class='kw'>or</span>
|
|
<span class='lparen'>(</span><span class='op'>!</span><span class='id identifier rubyid_lazy'>lazy</span> <span class='kw'>and</span> <span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span> <span class='op'>!=</span> <span class='const'><span class='object_link'><a href="#DATA_ATTRIBUTE_ID-constant" title="Rex::Parser::NTFS::DATA_ATTRIBUTE_ID (constant)">DATA_ATTRIBUTE_ID</a></span></span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='id identifier rubyid_cluster_from_attribute_non_resident'>cluster_from_attribute_non_resident</span><span class='lparen'>(</span><span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span><span class='comma'>,</span> <span class='id identifier rubyid_attribute_size'>attribute_size</span><span class='rbracket'>]</span><span class='rparen'>)</span>
|
|
<span class='kw'>else</span>
|
|
<span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span><span class='comma'>,</span> <span class='id identifier rubyid_attribute_size'>attribute_size</span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span>
|
|
<span class='kw'>end</span>
|
|
<span class='kw'>if</span> <span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span> <span class='op'>==</span> <span class='const'><span class='object_link'><a href="#DATA_ATTRIBUTE_ID-constant" title="Rex::Parser::NTFS::DATA_ATTRIBUTE_ID (constant)">DATA_ATTRIBUTE_ID</a></span></span>
|
|
<span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='lbrace'>{</span>
|
|
<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>data</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span><span class='rbracket'>]</span><span class='comma'>,</span>
|
|
<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>resident</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span> <span class='op'>+</span> <span class='int'>8</span><span class='rbracket'>]</span> <span class='op'>==</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>\x00</span><span class='tstring_end'>"</span></span> <span class='rbrace'>}</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_curs'>curs</span> <span class='op'>+=</span> <span class='id identifier rubyid_attribute_size'>attribute_size</span>
|
|
<span class='id identifier rubyid_attribute_identifier'>attribute_identifier</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record'>mft_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_curs'>curs</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_res'>res</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
|
|
<div class="method_details ">
|
|
<h3 class="signature " id="mft_record_from_mft_num-instance_method">
|
|
|
|
#<strong>mft_record_from_mft_num</strong>(mft_num) ⇒ <tt>Object</tt>
|
|
|
|
|
|
|
|
|
|
|
|
</h3><div class="docstring">
|
|
<div class="discussion">
|
|
|
|
<p>Gather the MFT entry corresponding to his number</p>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
<div class="tags">
|
|
|
|
|
|
</div><table class="source_code">
|
|
<tr>
|
|
<td>
|
|
<pre class="lines">
|
|
|
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|
44</pre>
|
|
</td>
|
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<td>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 40</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_mft_record_from_mft_num'>mft_record_from_mft_num</span><span class='lparen'>(</span><span class='id identifier rubyid_mft_num'>mft_num</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_mft_num_offset'>mft_num_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_num'>mft_num</span> <span class='op'>*</span> <span class='ivar'>@cluster_per_mft_record</span>
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<span class='id identifier rubyid_mft_data_attribute'>mft_data_attribute</span> <span class='op'>=</span> <span class='id identifier rubyid_mft_record_attribute'>mft_record_attribute</span><span class='lparen'>(</span><span class='ivar'>@mft</span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='const'><span class='object_link'><a href="#DATA_ATTRIBUTE_ID-constant" title="Rex::Parser::NTFS::DATA_ATTRIBUTE_ID (constant)">DATA_ATTRIBUTE_ID</a></span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>data</span><span class='tstring_end'>'</span></span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_cluster_from_attribute_non_resident'>cluster_from_attribute_non_resident</span><span class='lparen'>(</span><span class='id identifier rubyid_mft_data_attribute'>mft_data_attribute</span><span class='comma'>,</span> <span class='id identifier rubyid_mft_num_offset'>mft_num_offset</span><span class='comma'>,</span> <span class='ivar'>@bytes_per_mft_record</span><span class='rparen'>)</span>
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<span class='kw'>end</span></pre>
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<div class="method_details ">
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<h3 class="signature " id="parse_index-instance_method">
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#<strong>parse_index</strong>(index_entry) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>parse one index record and return the name, MFT number and size of the file</p>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 85</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_parse_index'>parse_index</span><span class='lparen'>(</span><span class='id identifier rubyid_index_entry'>index_entry</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_res'>res</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
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<span class='id identifier rubyid_filename_size'>filename_size</span> <span class='op'>=</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='int'>10</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_filename_attribute'>filename_attribute</span> <span class='op'>=</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='int'>16</span><span class='comma'>,</span> <span class='id identifier rubyid_filename_size'>filename_size</span><span class='rbracket'>]</span>
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<span class='comment'># Should be 8 bytes but it doesn't work
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</span> <span class='comment'># mft_offset = index_entry[0.unpack('Q<',:8])[0]
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</span> <span class='comment'># work with 4 bytes
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</span> <span class='id identifier rubyid_mft_offset'>mft_offset</span> <span class='op'>=</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='int'>0</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_res'>res</span><span class='lbracket'>[</span><span class='id identifier rubyid_filename_from_filenameattribute'>filename_from_filenameattribute</span><span class='lparen'>(</span><span class='id identifier rubyid_filename_attribute'>filename_attribute</span><span class='rparen'>)</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='lbrace'>{</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>mft_offset</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_mft_offset'>mft_offset</span><span class='comma'>,</span>
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<span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>file_size</span><span class='tstring_end'>'</span></span> <span class='op'>=></span> <span class='id identifier rubyid_real_size_from_filenameattribute'>real_size_from_filenameattribute</span><span class='lparen'>(</span><span class='id identifier rubyid_filename_attribute'>filename_attribute</span><span class='rparen'>)</span> <span class='rbrace'>}</span>
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<span class='id identifier rubyid_res'>res</span>
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<span class='kw'>end</span></pre>
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<div class="method_details ">
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<h3 class="signature " id="parse_index_list-instance_method">
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#<strong>parse_index_list</strong>(index_record, index_allocation_attribute) ⇒ <tt>Object</tt>
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</h3><div class="docstring">
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<div class="discussion">
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<p>parse index_record in $INDEX_ROOT and recursively index_record in INDEX_ALLOCATION</p>
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 103</span>
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<span class='kw'>def</span> <span class='id identifier rubyid_parse_index_list'>parse_index_list</span><span class='lparen'>(</span><span class='id identifier rubyid_index_record'>index_record</span><span class='comma'>,</span> <span class='id identifier rubyid_index_allocation_attribute'>index_allocation_attribute</span><span class='rparen'>)</span>
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<span class='id identifier rubyid_offset_index_entry_list'>offset_index_entry_list</span> <span class='op'>=</span> <span class='id identifier rubyid_index_record'>index_record</span><span class='lbracket'>[</span><span class='int'>0</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
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<span class='id identifier rubyid_index_size'>index_size</span> <span class='op'>=</span> <span class='id identifier rubyid_index_record'>index_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset_index_entry_list'>offset_index_entry_list</span> <span class='op'>+</span> <span class='int'>8</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
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<span class='id identifier rubyid_index_size_in_bytes'>index_size_in_bytes</span> <span class='op'>=</span> <span class='id identifier rubyid_index_size'>index_size</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_cluster</span>
|
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<span class='id identifier rubyid_index_entry'>index_entry</span> <span class='op'>=</span> <span class='id identifier rubyid_index_record'>index_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset_index_entry_list'>offset_index_entry_list</span><span class='comma'>,</span> <span class='id identifier rubyid_index_size'>index_size</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_res'>res</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
|
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<span class='kw'>while</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='int'>12</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span> <span class='op'>&</span> <span class='int'>2</span> <span class='op'>!=</span> <span class='int'>2</span>
|
|
<span class='id identifier rubyid_res'>res</span><span class='period'>.</span><span class='id identifier rubyid_update'>update</span><span class='lparen'>(</span><span class='id identifier rubyid_parse_index'>parse_index</span><span class='lparen'>(</span><span class='id identifier rubyid_index_entry'>index_entry</span><span class='rparen'>)</span><span class='rparen'>)</span>
|
|
<span class='comment'># if son
|
|
</span> <span class='kw'>if</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='int'>12</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span> <span class='op'>&</span> <span class='int'>1</span> <span class='op'>==</span> <span class='int'>1</span>
|
|
<span class='comment'># should be 8 bytes length
|
|
</span> <span class='id identifier rubyid_vcn'>vcn</span> <span class='op'>=</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='op'>-</span><span class='int'>8</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_vcn_in_bytes'>vcn_in_bytes</span> <span class='op'>=</span> <span class='id identifier rubyid_vcn'>vcn</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_cluster</span>
|
|
<span class='id identifier rubyid_res_son'>res_son</span> <span class='op'>=</span> <span class='id identifier rubyid_parse_index_list'>parse_index_list</span><span class='lparen'>(</span><span class='id identifier rubyid_index_allocation_attribute'>index_allocation_attribute</span><span class='lbracket'>[</span><span class='id identifier rubyid_vcn_in_bytes'>vcn_in_bytes</span> <span class='op'>+</span> <span class='int'>24</span><span class='comma'>,</span> <span class='id identifier rubyid_index_size_in_bytes'>index_size_in_bytes</span><span class='rbracket'>]</span><span class='comma'>,</span> <span class='id identifier rubyid_index_allocation_attribute'>index_allocation_attribute</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_res'>res</span><span class='period'>.</span><span class='id identifier rubyid_update'>update</span><span class='lparen'>(</span><span class='id identifier rubyid_res_son'>res_son</span><span class='rparen'>)</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_offset_index_entry_list'>offset_index_entry_list</span> <span class='op'>+=</span> <span class='id identifier rubyid_index_size'>index_size</span>
|
|
<span class='id identifier rubyid_index_size'>index_size</span> <span class='op'>=</span> <span class='id identifier rubyid_index_record'>index_record</span><span class='lbracket'>[</span><span class='id identifier rubyid_offset_index_entry_list'>offset_index_entry_list</span> <span class='op'>+</span> <span class='int'>8</span><span class='comma'>,</span> <span class='int'>2</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>v</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_index_size_in_bytes'>index_size_in_bytes</span> <span class='op'>=</span> <span class='id identifier rubyid_index_size'>index_size</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_cluster</span>
|
|
<span class='id identifier rubyid_index_entry'>index_entry</span> <span class='op'>=</span> <span class='id identifier rubyid_index_record'>index_record</span> <span class='lbracket'>[</span><span class='id identifier rubyid_offset_index_entry_list'>offset_index_entry_list</span><span class='comma'>,</span> <span class='id identifier rubyid_index_size'>index_size</span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span>
|
|
<span class='comment'># if son on the last
|
|
</span> <span class='kw'>if</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='int'>12</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span> <span class='op'>&</span> <span class='int'>1</span> <span class='op'>==</span> <span class='int'>1</span>
|
|
<span class='comment'># should be 8 bytes length
|
|
</span> <span class='id identifier rubyid_vcn'>vcn</span> <span class='op'>=</span> <span class='id identifier rubyid_index_entry'>index_entry</span><span class='lbracket'>[</span><span class='op'>-</span><span class='int'>8</span><span class='comma'>,</span> <span class='int'>4</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>V</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='id identifier rubyid_vcn_in_bytes'>vcn_in_bytes</span> <span class='op'>=</span> <span class='id identifier rubyid_vcn'>vcn</span> <span class='op'>*</span> <span class='ivar'>@bytes_per_cluster</span>
|
|
<span class='id identifier rubyid_res_son'>res_son</span> <span class='op'>=</span> <span class='id identifier rubyid_parse_index_list'>parse_index_list</span><span class='lparen'>(</span><span class='id identifier rubyid_index_allocation_attribute'>index_allocation_attribute</span><span class='lbracket'>[</span><span class='id identifier rubyid_vcn_in_bytes'>vcn_in_bytes</span> <span class='op'>+</span> <span class='int'>24</span><span class='comma'>,</span> <span class='id identifier rubyid_index_size_in_bytes'>index_size_in_bytes</span><span class='rbracket'>]</span><span class='comma'>,</span> <span class='id identifier rubyid_index_allocation_attribute'>index_allocation_attribute</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_res'>res</span><span class='period'>.</span><span class='id identifier rubyid_update'>update</span><span class='lparen'>(</span><span class='id identifier rubyid_res_son'>res_son</span><span class='rparen'>)</span>
|
|
<span class='kw'>end</span>
|
|
<span class='id identifier rubyid_res'>res</span>
|
|
<span class='kw'>end</span></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
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</div>
|
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|
|
<div class="method_details ">
|
|
<h3 class="signature " id="real_size_from_filenameattribute-instance_method">
|
|
|
|
#<strong>real_size_from_filenameattribute</strong>(attribute) ⇒ <tt>Object</tt>
|
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|
|
</h3><div class="docstring">
|
|
<div class="discussion">
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|
|
<p>Get the size of the file in the $FILENAME (64) attribute</p>
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|
|
</div>
|
|
</div>
|
|
<div class="tags">
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</div><table class="source_code">
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<pre class="lines">
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</td>
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<td>
|
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<pre class="code"><span class="info file"># File 'lib/rex/parser/fs/ntfs.rb', line 49</span>
|
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|
|
<span class='kw'>def</span> <span class='id identifier rubyid_real_size_from_filenameattribute'>real_size_from_filenameattribute</span><span class='lparen'>(</span><span class='id identifier rubyid_attribute'>attribute</span><span class='rparen'>)</span>
|
|
<span class='id identifier rubyid_filename_attribute'>filename_attribute</span> <span class='op'>=</span> <span class='id identifier rubyid_attribute'>attribute</span>
|
|
<span class='id identifier rubyid_filename_attribute'>filename_attribute</span><span class='lbracket'>[</span><span class='int'>48</span><span class='comma'>,</span> <span class='int'>8</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_unpack'>unpack</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Q<</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='lbracket'>[</span><span class='int'>0</span><span class='rbracket'>]</span>
|
|
<span class='kw'>end</span></pre>
|
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</td>
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<div id="footer">
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Generated on Fri May 8 17:04:06 2026 by
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<a href="https://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a>
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0.9.37 (ruby-3.1.5).
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