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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<a href="ps3__encryption__map_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * This file is part of the Aaru Data Preservation Suite.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Copyright (c) 2019-2026 Natalia Portillo.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * This library is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * published by the Free Software Foundation; version 2.1 of the License.</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * This library is distributed in the hope that it will be useful, but</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> *</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * License along with this library; if not, see</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * &lt;https://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> *</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> * PS3 encryption map: plaintext region parsing, serialization, and lookup.</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> */</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &quot;<a class="code" href="ps3__encryption__map_8h.html">ps3_encryption_map.h</a>&quot;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="comment">/* Read a big-endian uint32 from a byte buffer. */</span></div>
<div class="foldopen" id="foldopen00028" data-start="{" data-end="}">
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"><a class="line" href="ps3__encryption__map_8c.html#a3a376cf8ba481c4b09b25273af5953fe"> 28</a></span><span class="keyword">static</span> uint32_t <a class="code hl_function" href="ps3__encryption__map_8c.html#a3a376cf8ba481c4b09b25273af5953fe">read_be32</a>(<span class="keyword">const</span> uint8_t *p)</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span>{</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">return</span> ((uint32_t)p[0] &lt;&lt; 24) | ((uint32_t)p[1] &lt;&lt; 16) | ((uint32_t)p[2] &lt;&lt; 8) | (uint32_t)p[3];</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span>}</div>
</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="comment">/* Read a little-endian uint32 from a byte buffer. */</span></div>
<div class="foldopen" id="foldopen00034" data-start="{" data-end="}">
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="ps3__encryption__map_8c.html#a2e85418928614df336b5df9f3c28cbc7"> 34</a></span><span class="keyword">static</span> uint32_t <a class="code hl_function" href="ps3__encryption__map_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(<span class="keyword">const</span> uint8_t *p)</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>{</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">return</span> (uint32_t)p[0] | ((uint32_t)p[1] &lt;&lt; 8) | ((uint32_t)p[2] &lt;&lt; 16) | ((uint32_t)p[3] &lt;&lt; 24);</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>}</div>
</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment">/* Write a little-endian uint32 to a byte buffer. */</span></div>
<div class="foldopen" id="foldopen00040" data-start="{" data-end="}">
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="ps3__encryption__map_8c.html#a4ed80664538efb908d3c161aec613612"> 40</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="ps3__encryption__map_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(uint8_t *p, uint32_t v)</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>{</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> p[0] = (uint8_t)(v &amp; 0xFF);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> p[1] = (uint8_t)((v &gt;&gt; 8) &amp; 0xFF);</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> p[2] = (uint8_t)((v &gt;&gt; 16) &amp; 0xFF);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> p[3] = (uint8_t)((v &gt;&gt; 24) &amp; 0xFF);</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>}</div>
</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="foldopen" id="foldopen00048" data-start="{" data-end="}">
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="ps3__encryption__map_8c.html#ab646921aa4c83e38af36f38b8b3d068a"> 48</a></span>int32_t <a class="code hl_function" href="ps3__encryption__map_8c.html#ab646921aa4c83e38af36f38b8b3d068a">ps3_parse_encryption_map</a>(<span class="keyword">const</span> uint8_t *sector0, uint32_t length, <a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> **regions,</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> uint32_t *count)</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span>{</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">if</span>(sector0 == NULL || regions == NULL || count == NULL) <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="comment">/* Minimum required: 4 (region_count) + 4 (unknown) = 8 bytes */</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">if</span>(length &lt; 8) <span class="keywordflow">return</span> -2;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> uint32_t region_count = <a class="code hl_function" href="ps3__encryption__map_8c.html#a3a376cf8ba481c4b09b25273af5953fe">read_be32</a>(sector0);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">if</span>(region_count &gt; <a class="code hl_define" href="ps3__encryption__map_8h.html#a11c7d813ba3cb354fa9998a382e26c97">PS3_MAX_PLAINTEXT_REGIONS</a>) <span class="keywordflow">return</span> -3;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">if</span>(region_count == 0)</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> *regions = NULL;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> *count = 0;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> }</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="comment">/* Need 8 + region_count * 8 bytes */</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> uint32_t required = 8 + region_count * 8;</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordflow">if</span>(length &lt; required) <span class="keywordflow">return</span> -2;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> *r = (<a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> *)malloc(region_count * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a>));</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">if</span>(r == NULL) <span class="keywordflow">return</span> -4;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">const</span> uint8_t *ptr = sector0 + 8; <span class="comment">/* skip region_count (4) + unknown (4) */</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; region_count; i++)</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> {</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> r[i].<a class="code hl_variable" href="structPs3PlaintextRegion.html#a0f8d51bfa05ef8ec55608186331e7991">start_sector</a> = <a class="code hl_function" href="ps3__encryption__map_8c.html#a3a376cf8ba481c4b09b25273af5953fe">read_be32</a>(ptr);</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> r[i].<a class="code hl_variable" href="structPs3PlaintextRegion.html#a71978362decd504b3e3ecfb8e05980e4">end_sector</a> = <a class="code hl_function" href="ps3__encryption__map_8c.html#a3a376cf8ba481c4b09b25273af5953fe">read_be32</a>(ptr + 4);</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> ptr += 8;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordflow">if</span>(r[i].start_sector &gt; r[i].end_sector)</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> {</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> free(r);</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">return</span> -5;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> }</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> }</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> *regions = r;</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> *count = region_count;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span>}</div>
</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="foldopen" id="foldopen00094" data-start="{" data-end="}">
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"><a class="line" href="ps3__encryption__map_8c.html#aebc9066937e11649d0a81351ddd83582"> 94</a></span>int32_t <a class="code hl_function" href="ps3__encryption__map_8c.html#aebc9066937e11649d0a81351ddd83582">ps3_serialize_encryption_map</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> *regions, uint32_t count, uint8_t **out_data,</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> uint32_t *out_length)</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span>{</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">if</span>(out_data == NULL || out_length == NULL) <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">if</span>(count &gt; <a class="code hl_define" href="ps3__encryption__map_8h.html#a11c7d813ba3cb354fa9998a382e26c97">PS3_MAX_PLAINTEXT_REGIONS</a>) <span class="keywordflow">return</span> -3;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> uint32_t size = 4 + count * 8;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> uint8_t *buf = (uint8_t *)malloc(size);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">if</span>(buf == NULL) <span class="keywordflow">return</span> -4;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <a class="code hl_function" href="ps3__encryption__map_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(buf, count);</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; count; i++)</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> {</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <a class="code hl_function" href="ps3__encryption__map_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(buf + 4 + i * 8, regions[i].start_sector);</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <a class="code hl_function" href="ps3__encryption__map_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(buf + 4 + i * 8 + 4, regions[i].end_sector);</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> }</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> *out_data = buf;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> *out_length = size;</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span>}</div>
</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="foldopen" id="foldopen00117" data-start="{" data-end="}">
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"><a class="line" href="ps3__encryption__map_8c.html#a49a5e6c2b524988714513c446e2d200d"> 117</a></span>int32_t <a class="code hl_function" href="ps3__encryption__map_8c.html#a49a5e6c2b524988714513c446e2d200d">ps3_deserialize_encryption_map</a>(<span class="keyword">const</span> uint8_t *data, uint32_t length, <a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> **regions,</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> uint32_t *count)</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span>{</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">if</span>(data == NULL || regions == NULL || count == NULL) <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keywordflow">if</span>(length &lt; 4) <span class="keywordflow">return</span> -2;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> uint32_t region_count = <a class="code hl_function" href="ps3__encryption__map_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(data);</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">if</span>(region_count &gt; <a class="code hl_define" href="ps3__encryption__map_8h.html#a11c7d813ba3cb354fa9998a382e26c97">PS3_MAX_PLAINTEXT_REGIONS</a>) <span class="keywordflow">return</span> -3;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">if</span>(region_count == 0)</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> {</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> *regions = NULL;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> *count = 0;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> }</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> uint32_t required = 4 + region_count * 8;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keywordflow">if</span>(length &lt; required) <span class="keywordflow">return</span> -2;</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> *r = (<a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> *)malloc(region_count * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a>));</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">if</span>(r == NULL) <span class="keywordflow">return</span> -4;</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; region_count; i++)</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> {</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> r[i].<a class="code hl_variable" href="structPs3PlaintextRegion.html#a0f8d51bfa05ef8ec55608186331e7991">start_sector</a> = <a class="code hl_function" href="ps3__encryption__map_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(data + 4 + i * 8);</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> r[i].<a class="code hl_variable" href="structPs3PlaintextRegion.html#a71978362decd504b3e3ecfb8e05980e4">end_sector</a> = <a class="code hl_function" href="ps3__encryption__map_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(data + 4 + i * 8 + 4);</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> }</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> *regions = r;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> *count = region_count;</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span>}</div>
</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="foldopen" id="foldopen00151" data-start="{" data-end="}">
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"><a class="line" href="ps3__encryption__map_8c.html#a058b5191df4b4a83a6bc55052fad503f"> 151</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="ps3__encryption__map_8c.html#a058b5191df4b4a83a6bc55052fad503f">ps3_is_sector_encrypted</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a> *plaintext_regions, uint32_t region_count,</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> uint64_t sector_address)</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span>{</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordflow">if</span>(plaintext_regions == NULL || region_count == 0) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; region_count; i++)</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keywordflow">if</span>(sector_address &gt;= plaintext_regions[i].start_sector &amp;&amp; sector_address &lt;= plaintext_regions[i].end_sector)</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span>}</div>
</div>
<div class="ttc" id="aps3__encryption__map_8c_html_a058b5191df4b4a83a6bc55052fad503f"><div class="ttname"><a href="ps3__encryption__map_8c.html#a058b5191df4b4a83a6bc55052fad503f">ps3_is_sector_encrypted</a></div><div class="ttdeci">bool ps3_is_sector_encrypted(const Ps3PlaintextRegion *plaintext_regions, uint32_t region_count, uint64_t sector_address)</div><div class="ttdoc">Check whether a sector is encrypted (i.e., not in any plaintext region).</div><div class="ttdef"><b>Definition</b> <a href="#l00151">ps3_encryption_map.c:151</a></div></div>
<div class="ttc" id="aps3__encryption__map_8c_html_a2e85418928614df336b5df9f3c28cbc7"><div class="ttname"><a href="ps3__encryption__map_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a></div><div class="ttdeci">static uint32_t read_le32(const uint8_t *p)</div><div class="ttdef"><b>Definition</b> <a href="#l00034">ps3_encryption_map.c:34</a></div></div>
<div class="ttc" id="aps3__encryption__map_8c_html_a3a376cf8ba481c4b09b25273af5953fe"><div class="ttname"><a href="ps3__encryption__map_8c.html#a3a376cf8ba481c4b09b25273af5953fe">read_be32</a></div><div class="ttdeci">static uint32_t read_be32(const uint8_t *p)</div><div class="ttdef"><b>Definition</b> <a href="#l00028">ps3_encryption_map.c:28</a></div></div>
<div class="ttc" id="aps3__encryption__map_8c_html_a49a5e6c2b524988714513c446e2d200d"><div class="ttname"><a href="ps3__encryption__map_8c.html#a49a5e6c2b524988714513c446e2d200d">ps3_deserialize_encryption_map</a></div><div class="ttdeci">int32_t ps3_deserialize_encryption_map(const uint8_t *data, uint32_t length, Ps3PlaintextRegion **regions, uint32_t *count)</div><div class="ttdoc">Deserialize plaintext regions from little-endian binary (media tag format).</div><div class="ttdef"><b>Definition</b> <a href="#l00117">ps3_encryption_map.c:117</a></div></div>
<div class="ttc" id="aps3__encryption__map_8c_html_a4ed80664538efb908d3c161aec613612"><div class="ttname"><a href="ps3__encryption__map_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a></div><div class="ttdeci">static void write_le32(uint8_t *p, uint32_t v)</div><div class="ttdef"><b>Definition</b> <a href="#l00040">ps3_encryption_map.c:40</a></div></div>
<div class="ttc" id="aps3__encryption__map_8c_html_ab646921aa4c83e38af36f38b8b3d068a"><div class="ttname"><a href="ps3__encryption__map_8c.html#ab646921aa4c83e38af36f38b8b3d068a">ps3_parse_encryption_map</a></div><div class="ttdeci">int32_t ps3_parse_encryption_map(const uint8_t *sector0, uint32_t length, Ps3PlaintextRegion **regions, uint32_t *count)</div><div class="ttdoc">Parse the encryption map from PS3 disc sector 0 (big-endian on disc).</div><div class="ttdef"><b>Definition</b> <a href="#l00048">ps3_encryption_map.c:48</a></div></div>
<div class="ttc" id="aps3__encryption__map_8c_html_aebc9066937e11649d0a81351ddd83582"><div class="ttname"><a href="ps3__encryption__map_8c.html#aebc9066937e11649d0a81351ddd83582">ps3_serialize_encryption_map</a></div><div class="ttdeci">int32_t ps3_serialize_encryption_map(const Ps3PlaintextRegion *regions, uint32_t count, uint8_t **out_data, uint32_t *out_length)</div><div class="ttdoc">Serialize plaintext regions to little-endian binary for storage as a media tag.</div><div class="ttdef"><b>Definition</b> <a href="#l00094">ps3_encryption_map.c:94</a></div></div>
<div class="ttc" id="aps3__encryption__map_8h_html"><div class="ttname"><a href="ps3__encryption__map_8h.html">ps3_encryption_map.h</a></div></div>
<div class="ttc" id="aps3__encryption__map_8h_html_a11c7d813ba3cb354fa9998a382e26c97"><div class="ttname"><a href="ps3__encryption__map_8h.html#a11c7d813ba3cb354fa9998a382e26c97">PS3_MAX_PLAINTEXT_REGIONS</a></div><div class="ttdeci">#define PS3_MAX_PLAINTEXT_REGIONS</div><div class="ttdef"><b>Definition</b> <a href="ps3__encryption__map_8h_source.html#l00039">ps3_encryption_map.h:39</a></div></div>
<div class="ttc" id="astructPs3PlaintextRegion_html"><div class="ttname"><a href="structPs3PlaintextRegion.html">Ps3PlaintextRegion</a></div><div class="ttdoc">A plaintext (unencrypted) region on a PS3 disc.</div><div class="ttdef"><b>Definition</b> <a href="ps3__encryption__map_8h_source.html#l00033">ps3_encryption_map.h:34</a></div></div>
<div class="ttc" id="astructPs3PlaintextRegion_html_a0f8d51bfa05ef8ec55608186331e7991"><div class="ttname"><a href="structPs3PlaintextRegion.html#a0f8d51bfa05ef8ec55608186331e7991">Ps3PlaintextRegion::start_sector</a></div><div class="ttdeci">uint32_t start_sector</div><div class="ttdoc">First sector of plaintext region (inclusive).</div><div class="ttdef"><b>Definition</b> <a href="ps3__encryption__map_8h_source.html#l00035">ps3_encryption_map.h:35</a></div></div>
<div class="ttc" id="astructPs3PlaintextRegion_html_a71978362decd504b3e3ecfb8e05980e4"><div class="ttname"><a href="structPs3PlaintextRegion.html#a71978362decd504b3e3ecfb8e05980e4">Ps3PlaintextRegion::end_sector</a></div><div class="ttdeci">uint32_t end_sector</div><div class="ttdoc">Last sector of plaintext region (inclusive).</div><div class="ttdef"><b>Definition</b> <a href="ps3__encryption__map_8h_source.html#l00036">ps3_encryption_map.h:36</a></div></div>
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