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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_ef99456410776b930b88f5850437ce61.html">obf</a></li><li class="navelem"><a class="el" href="dir_fa1ee7704f0ab8e5fd961a68bf21be50.html">transform</a></li>  </ul>
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<div class="title">operation.hpp</div>  </div>
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<a href="operation_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// Copyright (c) 2022, _xeroxz</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// All rights reserved.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// modification, are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// 1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">//    this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">// 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">//    this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">//    and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">// 3. Neither the name of the copyright holder nor the names of its</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">//    contributors may be used to endorse or promote products derived from</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot;</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment">// POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;spdlog/spdlog.h&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &lt;bit&gt;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &lt;bitset&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#include &lt;functional&gt;</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &lt;map&gt;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &lt;random&gt;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="operation_8hpp.html#a3925943d185a09ad9e32ed8637ccb533">   39</a></span>&#160;<span class="preprocessor">#define XED_ENCODER</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#include &lt;xed-decode.h&gt;</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#include &lt;xed-interface.h&gt;</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;}</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160; </div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacetheo_1_1obf_1_1transform.html">theo::obf::transform</a> {</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160; </div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">   54</a></span>&#160;<span class="keyword">using</span> <a class="code" href="namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">transform_t</a> = <a class="code" href="namespacetheo_1_1decomp.html#af96177687d0ad683c5897d8fa01135f9acf6baee49c2ddb7e89724231bbd75d4a">std::function</a>&lt;std::size_t(std::size_t, std::uint32_t)&gt;;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="classtheo_1_1obf_1_1transform_1_1operation__t.html">   61</a></span>&#160;<span class="keyword">class </span><a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html">operation_t</a> {</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a3876ca1c7904aed54940e1519fc9fdf4">   69</a></span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a3876ca1c7904aed54940e1519fc9fdf4">operation_t</a>(<a class="code" href="namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">transform_t</a> op, xed_iclass_enum_t <a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a8558c2a8e78ef8da59674396bc76157f">type</a>)</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;      : m_transform(op), m_type(<a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a8558c2a8e78ef8da59674396bc76157f">type</a>) {}</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160; </div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a414b1716ec527c26bfcbd5262c21a7a8">   89</a></span>&#160;  std::vector&lt;std::uint8_t&gt; <a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a414b1716ec527c26bfcbd5262c21a7a8">native</a>(<span class="keyword">const</span> xed_decoded_inst_t* inst,</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;                                   std::uint32_t imm) {</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    std::uint32_t inst_len = {};</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    std::uint8_t inst_buff[XED_MAX_INSTRUCTION_BYTES];</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    xed_error_enum_t err;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    xed_encoder_request_init_from_decode((xed_decoded_inst_s*)inst);</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    xed_encoder_request_t* req = (xed_encoder_request_t*)inst;</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="keywordflow">switch</span> (m_type) {</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;      <span class="keywordflow">case</span> XED_ICLASS_ROR:</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;      <span class="keywordflow">case</span> XED_ICLASS_ROL:</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;        xed_encoder_request_set_uimm0(req, imm, 1);</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;      <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        xed_encoder_request_set_uimm0(req, imm, 4);</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    }</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160; </div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    xed_encoder_request_set_iclass(req, m_type);</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    xed_encoder_request_set_operand_order(req, 1, XED_OPERAND_IMM0);</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordflow">if</span> ((err = xed_encode(req, inst_buff, <span class="keyword">sizeof</span>(inst_buff), &amp;inst_len)) !=</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        XED_ERROR_NONE) {</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;      spdlog::error(<span class="stringliteral">&quot;failed to encode instruction... reason: {}&quot;</span>,</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;                    xed_error_enum_t2str(err));</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160; </div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;      assert(err == XED_ERROR_NONE);</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    }</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160; </div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="keywordflow">return</span> std::vector&lt;std::uint8_t&gt;(inst_buff, inst_buff + inst_len);</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;  }</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a91f9b94436d49659aaabb291786b3c7b">  126</a></span>&#160;  xed_iclass_enum_t <a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a91f9b94436d49659aaabb291786b3c7b">inverse</a>() { <span class="keywordflow">return</span> m_inverse_op[m_type]; }</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a307c6d7d48319d28d39d93c1df18680a">  133</a></span>&#160;  <a class="code" href="namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">transform_t</a>* <a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a307c6d7d48319d28d39d93c1df18680a">get_transform</a>() { <span class="keywordflow">return</span> &amp;m_transform; }</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160; </div>
<div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a8558c2a8e78ef8da59674396bc76157f">  140</a></span>&#160;  xed_iclass_enum_t <a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a8558c2a8e78ef8da59674396bc76157f">type</a>() { <span class="keywordflow">return</span> m_type; }</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#aaa5859bc3c7f95d99d4d726289593488">  148</a></span>&#160;  <span class="keyword">static</span> std::size_t <a class="code" href="classtheo_1_1obf_1_1transform_1_1operation__t.html#aaa5859bc3c7f95d99d4d726289593488">random</a>(std::size_t lowest, std::size_t largest) {</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    std::random_device rd;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    std::mt19937 gen(rd());</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    std::uniform_int_distribution&lt;std::size_t&gt; distr(lowest, largest);</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    <span class="keywordflow">return</span> distr(gen);</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;  }</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160; </div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;  <a class="code" href="namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">transform_t</a> m_transform;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;  xed_iclass_enum_t m_type;</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;  std::map&lt;xed_iclass_enum_t, xed_iclass_enum_t&gt; m_inverse_op = {</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;      {XED_ICLASS_ADD, XED_ICLASS_SUB},</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;      {XED_ICLASS_SUB, XED_ICLASS_ADD},</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;      {XED_ICLASS_ROL, XED_ICLASS_ROR},</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;      {XED_ICLASS_ROR, XED_ICLASS_ROL},</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;      {XED_ICLASS_XOR, XED_ICLASS_XOR}};</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;};</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160; </div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;}  <span class="comment">// namespace theo::obf::transform</span></div>
<div class="ttc" id="aclasstheo_1_1obf_1_1transform_1_1operation__t_html"><div class="ttname"><a href="classtheo_1_1obf_1_1transform_1_1operation__t.html">theo::obf::transform::operation_t</a></div><div class="ttdoc">operation_t is the base class for all types of transformations. classes that inherit this class are s...</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00061">operation.hpp:61</a></div></div>
<div class="ttc" id="aclasstheo_1_1obf_1_1transform_1_1operation__t_html_a307c6d7d48319d28d39d93c1df18680a"><div class="ttname"><a href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a307c6d7d48319d28d39d93c1df18680a">theo::obf::transform::operation_t::get_transform</a></div><div class="ttdeci">transform_t * get_transform()</div><div class="ttdoc">gets a pointer to the lambda function which contains the transform logic.</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00133">operation.hpp:133</a></div></div>
<div class="ttc" id="aclasstheo_1_1obf_1_1transform_1_1operation__t_html_a3876ca1c7904aed54940e1519fc9fdf4"><div class="ttname"><a href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a3876ca1c7904aed54940e1519fc9fdf4">theo::obf::transform::operation_t::operation_t</a></div><div class="ttdeci">operation_t(transform_t op, xed_iclass_enum_t type)</div><div class="ttdoc">explicit constructor for operation_t</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00069">operation.hpp:69</a></div></div>
<div class="ttc" id="aclasstheo_1_1obf_1_1transform_1_1operation__t_html_a414b1716ec527c26bfcbd5262c21a7a8"><div class="ttname"><a href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a414b1716ec527c26bfcbd5262c21a7a8">theo::obf::transform::operation_t::native</a></div><div class="ttdeci">std::vector&lt; std::uint8_t &gt; native(const xed_decoded_inst_t *inst, std::uint32_t imm)</div><div class="ttdoc">generates a native transform instruction given an existing instruction. it works like so:</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00089">operation.hpp:89</a></div></div>
<div class="ttc" id="aclasstheo_1_1obf_1_1transform_1_1operation__t_html_a8558c2a8e78ef8da59674396bc76157f"><div class="ttname"><a href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a8558c2a8e78ef8da59674396bc76157f">theo::obf::transform::operation_t::type</a></div><div class="ttdeci">xed_iclass_enum_t type()</div><div class="ttdoc">gets the operation type. such as XED_ICLASS_ADD, XED_ICLASS_SUB, etc...</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00140">operation.hpp:140</a></div></div>
<div class="ttc" id="aclasstheo_1_1obf_1_1transform_1_1operation__t_html_a91f9b94436d49659aaabb291786b3c7b"><div class="ttname"><a href="classtheo_1_1obf_1_1transform_1_1operation__t.html#a91f9b94436d49659aaabb291786b3c7b">theo::obf::transform::operation_t::inverse</a></div><div class="ttdeci">xed_iclass_enum_t inverse()</div><div class="ttdoc">gets the inverse operation of the current operation.</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00126">operation.hpp:126</a></div></div>
<div class="ttc" id="aclasstheo_1_1obf_1_1transform_1_1operation__t_html_aaa5859bc3c7f95d99d4d726289593488"><div class="ttname"><a href="classtheo_1_1obf_1_1transform_1_1operation__t.html#aaa5859bc3c7f95d99d4d726289593488">theo::obf::transform::operation_t::random</a></div><div class="ttdeci">static std::size_t random(std::size_t lowest, std::size_t largest)</div><div class="ttdoc">generate a random number in a range.</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00148">operation.hpp:148</a></div></div>
<div class="ttc" id="anamespacetheo_1_1decomp_html_af96177687d0ad683c5897d8fa01135f9acf6baee49c2ddb7e89724231bbd75d4a"><div class="ttname"><a href="namespacetheo_1_1decomp.html#af96177687d0ad683c5897d8fa01135f9acf6baee49c2ddb7e89724231bbd75d4a">theo::decomp::function</a></div><div class="ttdeci">@ function</div><div class="ttdef"><b>Definition:</b> <a href="symbol_8hpp_source.html#l00043">symbol.hpp:43</a></div></div>
<div class="ttc" id="anamespacetheo_1_1obf_1_1transform_html"><div class="ttname"><a href="namespacetheo_1_1obf_1_1transform.html">theo::obf::transform</a></div><div class="ttdoc">this namespace encompasses the code for transforming relocations.</div><div class="ttdef"><b>Definition:</b> <a href="add__op_8hpp_source.html#l00034">add_op.hpp:34</a></div></div>
<div class="ttc" id="anamespacetheo_1_1obf_1_1transform_html_a875984c1ce09aa998fe48cca55270ecc"><div class="ttname"><a href="namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">theo::obf::transform::transform_t</a></div><div class="ttdeci">std::function&lt; std::size_t(std::size_t, std::uint32_t)&gt; transform_t</div><div class="ttdoc">lambda function which takes in a 64bit value (relocation address) and a 32bit value (random value use...</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00054">operation.hpp:54</a></div></div>
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