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<li class="navelem"><a class="el" href="../../da/de6/namespacetheo.html">theo</a></li><li class="navelem"><a class="el" href="../../d5/da8/namespacetheo_1_1obf.html">obf</a></li><li class="navelem"><a class="el" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html">transform</a></li> </ul>
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<a href="#nested-classes">Classes</a> &#124;
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<div class="title">theo::obf::transform Namespace Reference</div> </div>
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<p>this namespace encompasses the code for transforming relocations.
<a href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#details">More...</a></p>
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Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/d9f/classtheo_1_1obf_1_1transform_1_1add__op__t.html">add_op_t</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/de2/classtheo_1_1obf_1_1transform_1_1operation__t.html">operation_t</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight"><a class="el" href="../../d7/de2/classtheo_1_1obf_1_1transform_1_1operation__t.html" title="operation_t is the base class for all types of transformations. classes that inherit this class are s...">operation_t</a> is the base class for all types of transformations. classes that inherit this class are singleton and simply call the super constructor (<a class="el" href="../../d7/de2/classtheo_1_1obf_1_1transform_1_1operation__t.html#a3876ca1c7904aed54940e1519fc9fdf4" title="explicit constructor for operation_t">operation_t::operation_t</a>). <a href="../../d7/de2/classtheo_1_1obf_1_1transform_1_1operation__t.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d52/classtheo_1_1obf_1_1transform_1_1rol__op__t.html">rol_op_t</a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d8f/classtheo_1_1obf_1_1transform_1_1ror__op__t.html">ror_op_t</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d52/classtheo_1_1obf_1_1transform_1_1sub__op__t.html">sub_op_t</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/db7/classtheo_1_1obf_1_1transform_1_1xor__op__t.html">xor_op_t</a></td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:a875984c1ce09aa998fe48cca55270ecc"><td class="memItemLeft" align="right" valign="top">using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">transform_t</a> = std::function&lt; std::size_t(std::size_t, std::uint32_t)&gt;</td></tr>
<tr class="memdesc:a875984c1ce09aa998fe48cca55270ecc"><td class="mdescLeft">&#160;</td><td class="mdescRight">lambda function which takes in a 64bit value (relocation address) and a 32bit value (random value used in transformation). <a href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">More...</a><br /></td></tr>
<tr class="separator:a875984c1ce09aa998fe48cca55270ecc"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a416c6c93ce55a4ab9f70592951d15704"><td class="memItemLeft" align="right" valign="top">std::vector&lt; std::uint8_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a416c6c93ce55a4ab9f70592951d15704">generate</a> (xed_decoded_inst_t *inst, <a class="el" href="../../dd/d37/classtheo_1_1recomp_1_1reloc__t.html">recomp::reloc_t</a> *reloc, std::uint8_t low, std::uint8_t high)</td></tr>
<tr class="memdesc:a416c6c93ce55a4ab9f70592951d15704"><td class="mdescLeft">&#160;</td><td class="mdescRight">generate a sequence of transformations given an instruction that has a relocation in it. <a href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a416c6c93ce55a4ab9f70592951d15704">More...</a><br /></td></tr>
<tr class="separator:a416c6c93ce55a4ab9f70592951d15704"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Variables</h2></td></tr>
<tr class="memitem:a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0"><td class="memItemLeft" align="right" valign="top">std::map&lt; xed_iclass_enum_t, <a class="el" href="../../d7/de2/classtheo_1_1obf_1_1transform_1_1operation__t.html">operation_t</a> * &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0">operations</a></td></tr>
<tr class="memdesc:a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0"><td class="mdescLeft">&#160;</td><td class="mdescRight">map of all of the operations and their type. <a href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0">More...</a><br /></td></tr>
<tr class="separator:a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>this namespace encompasses the code for transforming relocations. </p>
</div><h2 class="groupheader">Typedef Documentation</h2>
<a id="a875984c1ce09aa998fe48cca55270ecc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a875984c1ce09aa998fe48cca55270ecc">&#9670;&nbsp;</a></span>transform_t</h2>
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<td class="memname">using <a class="el" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a875984c1ce09aa998fe48cca55270ecc">theo::obf::transform::transform_t</a> = typedef std::function&lt;std::size_t(std::size_t, std::uint32_t)&gt;</td>
</tr>
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</div><div class="memdoc">
<p>lambda function which takes in a 64bit value (relocation address) and a 32bit value (random value used in transformation). </p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="a416c6c93ce55a4ab9f70592951d15704"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a416c6c93ce55a4ab9f70592951d15704">&#9670;&nbsp;</a></span>generate()</h2>
<div class="memitem">
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<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">std::vector&lt;std::uint8_t&gt; theo::obf::transform::generate </td>
<td>(</td>
<td class="paramtype">xed_decoded_inst_t *&#160;</td>
<td class="paramname"><em>inst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="../../dd/d37/classtheo_1_1recomp_1_1reloc__t.html">recomp::reloc_t</a> *&#160;</td>
<td class="paramname"><em>reloc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::uint8_t&#160;</td>
<td class="paramname"><em>low</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::uint8_t&#160;</td>
<td class="paramname"><em>high</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>generate a sequence of transformations given an instruction that has a relocation in it. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">inst</td><td>instruction that has a relocation in it.</td></tr>
<tr><td class="paramname">reloc</td><td>meta data relocation object for the instruction.</td></tr>
<tr><td class="paramname">low</td><td>lowest number of transformations to generate.</td></tr>
<tr><td class="paramname">high</td><td>highest number of transformations to generate.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd></dd></dl>
<div class="fragment"><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keyword">auto</span> num_transforms = transform::operation_t::random(low, high);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keyword">auto</span> num_ops = <a class="code" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0">transform::operations</a>.size();</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; std::vector&lt;std::uint8_t&gt; new_inst_bytes;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; std::uint32_t inst_len = {};</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; std::uint8_t inst_buff[XED_MAX_INSTRUCTION_BYTES];</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; xed_encoder_request_t req;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; xed_state_t istate{XED_MACHINE_MODE_LONG_64, XED_ADDRESS_WIDTH_64b};</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; xed_encoder_request_zero_set_mode(&amp;req, &amp;istate);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; xed_encoder_request_set_effective_operand_width(&amp;req, 64);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; xed_encoder_request_set_iclass(&amp;req, XED_ICLASS_PUSHFQ);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; xed_encode(&amp;req, inst_buff, <span class="keyword">sizeof</span>(inst_buff), &amp;inst_len);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; new_inst_bytes.insert(new_inst_bytes.end(), inst_buff, inst_buff + inst_len);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">auto</span> cnt = 0u; cnt &lt; num_transforms; ++cnt) {</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; std::uint32_t imm = transform::operation_t::random(</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; 0, std::numeric_limits&lt;std::int32_t&gt;::max());</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keyword">auto</span> itr = <a class="code" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0">transform::operations</a>.begin();</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; std::advance(itr, transform::operation_t::random(0, num_ops - 1));</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keyword">auto</span> transform_bytes = itr-&gt;second-&gt;native(inst, imm);</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; new_inst_bytes.insert(new_inst_bytes.end(), transform_bytes.begin(),</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; transform_bytes.end());</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; </div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; reloc-&gt;add_transform(</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; {<a class="code" href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0">transform::operations</a>[itr-&gt;second-&gt;inverse()]-&gt;get_transform(), imm});</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; xed_encoder_request_zero_set_mode(&amp;req, &amp;istate);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; xed_encoder_request_set_effective_operand_width(&amp;req, 64);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; xed_encoder_request_set_iclass(&amp;req, XED_ICLASS_POPFQ);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; xed_encode(&amp;req, inst_buff, <span class="keyword">sizeof</span>(inst_buff), &amp;inst_len);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; new_inst_bytes.insert(new_inst_bytes.end(), inst_buff, inst_buff + inst_len);</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="comment">// inverse the order in which the transformations are executed...</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="comment">//</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; std::reverse(reloc-&gt;get_transforms().begin(), reloc-&gt;get_transforms().end());</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keywordflow">return</span> new_inst_bytes;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;}</div>
<div class="ttc" id="anamespacetheo_1_1obf_1_1transform_html_a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0"><div class="ttname"><a href="../../d8/d82/namespacetheo_1_1obf_1_1transform.html#a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0">theo::obf::transform::operations</a></div><div class="ttdeci">std::map&lt; xed_iclass_enum_t, operation_t * &gt; operations</div><div class="ttdoc">map of all of the operations and their type.</div><div class="ttdef"><b>Definition:</b> transform.hpp:42</div></div>
</div><!-- fragment -->
</div>
</div>
<h2 class="groupheader">Variable Documentation</h2>
<a id="a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6a4b1d5c0c9c2ea1f0b4ec8f5aba48b0">&#9670;&nbsp;</a></span>operations</h2>
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<td class="memname">std::map&lt;xed_iclass_enum_t, <a class="el" href="../../d7/de2/classtheo_1_1obf_1_1transform_1_1operation__t.html">operation_t</a>*&gt; theo::obf::transform::operations</td>
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<b>Initial value:</b><div class="fragment"><div class="line">= {</div>
<div class="line"> {XED_ICLASS_ADD, add_op_t::get()},</div>
<div class="line"> {XED_ICLASS_SUB, sub_op_t::get()},</div>
<div class="line"> {XED_ICLASS_ROL, rol_op_t::get()},</div>
<div class="line"> {XED_ICLASS_ROR, ror_op_t::get()},</div>
<div class="line"> {XED_ICLASS_XOR, xor_op_t::get()}}</div>
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<p>map of all of the operations and their type. </p>
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