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2025-09-12 15:55:45 +02:00
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<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"> * (c) 2010 Adam Lackorzynski &lt;adam@os.inf.tu-dresden.de&gt;,</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Alexander Warg &lt;warg@os.inf.tu-dresden.de&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * economic rights: Technische Universität Dresden (Germany)</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> *</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> */</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;l4/l4re_vfs/backend&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;<a class="code" href="capability.html">l4/sys/capability</a>&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;<a class="code" href="namespace.html">l4/re/namespace</a>&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &lt;<a class="code" href="unique__cap.html">l4/re/unique_cap</a>&gt;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4Re.html">L4Re</a> { <span class="keyword">namespace </span>Core {</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="keyword">using </span>cxx::Ref_ptr;</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">class </span>Env_dir : <span class="keyword">public</span> L4Re::Vfs::Be_file</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="keyword">public</span>:</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">explicit</span> Env_dir(L4Re::Env <span class="keyword">const</span> *env)</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> : _env(env), _current_cap_entry(env-&gt;initial_caps())</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> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> ssize_t readv(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> ssize_t writev(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> ssize_t preadv(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>, off64_t) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> ssize_t pwritev(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>, off64_t) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordtype">int</span> fstat(<span class="keyword">struct</span> stat64 *) <span class="keyword">const</span> <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keywordtype">int</span> faccessat(<span class="keyword">const</span> <span class="keywordtype">char</span> *path, <span class="keywordtype">int</span> mode, <span class="keywordtype">int</span> flags) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordtype">int</span> get_entry(<span class="keyword">const</span> <span class="keywordtype">char</span> *path, <span class="keywordtype">int</span> flags, mode_t mode,</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> Ref_ptr&lt;L4Re::Vfs::File&gt; *) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> ssize_t getdents(<span class="keywordtype">char</span> *, <span class="keywordtype">size_t</span>) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</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> ~Env_dir() noexcept {}</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordtype">int</span> get_ds(<span class="keyword">const</span> <span class="keywordtype">char</span> *path, <a class="code hl_typedef" href="namespaceL4Re.html#a44b5a2cf415294d2f2cc5ffce0614981">L4Re::Unique_cap&lt;L4Re::Dataspace&gt;</a> *ds) <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keywordtype">bool</span> check_type(<a class="code hl_typedef" href="classL4Re_1_1Env.html#a6f210542f5090254dc7c93826ce2fcc0">Env::Cap_entry</a> <span class="keyword">const</span> *e, <span class="keywordtype">long</span> protocol) <span class="keyword">noexcept</span>;</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> L4Re::Env <span class="keyword">const</span> *_env;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <a class="code hl_typedef" href="classL4Re_1_1Env.html#a6f210542f5090254dc7c93826ce2fcc0">Env::Cap_entry</a> <span class="keyword">const</span> *_current_cap_entry;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span>};</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="keyword">class </span>Ns_dir : <span class="keyword">public</span> L4Re::Vfs::Be_file</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span>{</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">explicit</span> Ns_dir(L4::Cap&lt;L4Re::Namespace&gt; ns)</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> : _ns(ns), _current_dir_pos(0)</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> {}</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> ssize_t readv(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> ssize_t writev(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> ssize_t preadv(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>, off64_t) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> ssize_t pwritev(<span class="keyword">const</span> <span class="keyword">struct</span> iovec*, <span class="keywordtype">int</span>, off64_t) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> -EISDIR; }</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordtype">int</span> fstat(<span class="keyword">struct</span> stat64 *) <span class="keyword">const</span> <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordtype">int</span> faccessat(<span class="keyword">const</span> <span class="keywordtype">char</span> *path, <span class="keywordtype">int</span> mode, <span class="keywordtype">int</span> flags) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordtype">int</span> get_entry(<span class="keyword">const</span> <span class="keywordtype">char</span> *path, <span class="keywordtype">int</span> flags, mode_t mode,</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> Ref_ptr&lt;L4Re::Vfs::File&gt; *) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> ssize_t getdents(<span class="keywordtype">char</span> *, <span class="keywordtype">size_t</span>) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> ~Ns_dir() noexcept {}</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordtype">int</span> get_ds(<span class="keyword">const</span> <span class="keywordtype">char</span> *path, <a class="code hl_typedef" href="namespaceL4Re.html#a44b5a2cf415294d2f2cc5ffce0614981">L4Re::Unique_cap&lt;L4Re::Dataspace&gt;</a> *ds) <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> L4::Cap&lt;L4Re::Namespace&gt; _ns;</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">size_t</span> _current_dir_pos;</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> </div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span>}}</div>
<div class="ttc" id="acapability_html"><div class="ttname"><a href="capability.html">capability</a></div><div class="ttdoc">L4::Cap related definitions.</div></div>
<div class="ttc" id="aclassL4Re_1_1Env_html_a6f210542f5090254dc7c93826ce2fcc0"><div class="ttname"><a href="classL4Re_1_1Env.html#a6f210542f5090254dc7c93826ce2fcc0">L4Re::Env::Cap_entry</a></div><div class="ttdeci">l4re_env_cap_entry_t Cap_entry</div><div class="ttdoc">C++ type for an entry in the initial objects array.</div><div class="ttdef"><b>Definition</b> <a href="env_source.html#l00087">env:87</a></div></div>
<div class="ttc" id="anamespaceL4Re_html"><div class="ttname"><a href="namespaceL4Re.html">L4Re</a></div><div class="ttdoc">L4Re C++ Interfaces.</div><div class="ttdef"><b>Definition</b> <a href="cmd__control_source.html#l00014">cmd_control:14</a></div></div>
<div class="ttc" id="anamespaceL4Re_html_a44b5a2cf415294d2f2cc5ffce0614981"><div class="ttname"><a href="namespaceL4Re.html#a44b5a2cf415294d2f2cc5ffce0614981">L4Re::Unique_cap</a></div><div class="ttdeci">L4::Detail::Unique_cap_impl&lt; T, Smart_cap_auto&lt; L4_FP_ALL_SPACES &gt; &gt; Unique_cap</div><div class="ttdoc">Unique capability that implements automatic free and unmap of the capability selector.</div><div class="ttdef"><b>Definition</b> <a href="unique__cap_source.html#l00031">unique_cap:31</a></div></div>
<div class="ttc" id="anamespace_html"><div class="ttname"><a href="namespace.html">namespace</a></div><div class="ttdoc">Namespace interface.</div></div>
<div class="ttc" id="aunique__cap_html"><div class="ttname"><a href="unique__cap.html">unique_cap</a></div><div class="ttdoc">Unique_cap / Unique_del_cap.</div></div>
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