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| <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_a18918b93668b435612395bbc2e8b82b.html">linux</a></li> </ul> |
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| <div class="title">ns.hpp</div> </div> |
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| <div class="contents"> |
| <a href="ns_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> <span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// distributed with this work for additional information</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef __LINUX_NS_HPP__</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span><span class="preprocessor">#define __LINUX_NS_HPP__</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// This file contains Linux-only OS utilities.</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef __linux__</span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#error "linux/ns.hpp is only available on Linux systems."</span></div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <assert.h></span></div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <sched.h></span></div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <unistd.h></span></div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <sys/syscall.h></span></div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <sys/wait.h></span></div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <set></span></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <string></span></div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <vector></span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="hashmap_8hpp.html">stout/hashmap.hpp</a>></span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="nothing_8hpp.html">stout/nothing.hpp</a>></span></div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="os_8hpp.html">stout/os.hpp</a>></span></div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="path_8hpp.html">stout/path.hpp</a>></span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include <<a class="code" href="proc_8hpp.html">stout/proc.hpp</a>></span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <<a class="code" href="stringify_8hpp.html">stout/stringify.hpp</a>></span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include <<a class="code" href="strings_8hpp.html">stout/strings.hpp</a>></span></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include <<a class="code" href="exists_8hpp.html">stout/os/exists.hpp</a>></span></div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include <<a class="code" href="ls_8hpp.html">stout/os/ls.hpp</a>></span></div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include <<a class="code" href="collect_8hpp.html">process/collect.hpp</a>></span></div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include <<a class="code" href="future_8hpp.html">process/future.hpp</a>></span></div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include <<a class="code" href="reap_8hpp.html">process/reap.hpp</a>></span></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#ifndef CLONE_NEWNS</span></div> |
| <div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4"> 54</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWNS 0x00020000</span></div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#ifndef CLONE_NEWUTS</span></div> |
| <div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3"> 58</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWUTS 0x04000000</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#ifndef CLONE_NEWIPC</span></div> |
| <div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3"> 62</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWIPC 0x08000000</span></div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#ifndef CLONE_NEWPID</span></div> |
| <div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4"> 66</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWPID 0x20000000</span></div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#ifndef CLONE_NEWNET</span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce"> 70</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWNET 0x40000000</span></div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#ifndef CLONE_NEWUSER</span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87"> 74</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWUSER 0x10000000</span></div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#ifndef CLONE_NEWCGROUP</span></div> |
| <div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a"> 78</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWCGROUP 0x02000000</span></div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// Define a 'setns' for compilation environments that don't already</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// have one.</span></div> |
| <div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a9aa5c2738ac9781ed9cd8202d87fb089"> 83</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="ns_8hpp.html#a9aa5c2738ac9781ed9cd8202d87fb089">setns</a>(<span class="keywordtype">int</span> fd, <span class="keywordtype">int</span> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>)</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> {</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#ifdef SYS_setns</span></div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span> return ::syscall(SYS_setns, fd, nstype);</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#elif __x86_64__</span></div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor"></span> <span class="comment">// A workaround for those hosts that have an old glibc (older than</span></div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// 2.14) but have a new kernel. The magic number '308' here is the</span></div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// syscall number for 'setns' on x86_64 architecture.</span></div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  return ::syscall(308, fd, nstype);</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#else</span></div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor"></span><span class="preprocessor">#error "setns is not available"</span></div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"></span>}</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div> |
| <div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="namespacens.html"> 97</a></span> <span class="keyword">namespace </span>ns {</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// Returns the nstype (e.g., CLONE_NEWNET, CLONE_NEWNS, etc.) for the</span></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// given namespace which can be used when calling ::setns.</span></div> |
| <div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e"> 101</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>(<span class="keyword">const</span> std::string& ns)</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span> {</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">const</span> <a class="code" href="classhashmap.html">hashmap<std::string, int></a> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a> = {</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {<span class="stringliteral">"mnt"</span>, <a class="code" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4">CLONE_NEWNS</a>},</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  {<span class="stringliteral">"uts"</span>, <a class="code" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3">CLONE_NEWUTS</a>},</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {<span class="stringliteral">"ipc"</span>, <a class="code" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3">CLONE_NEWIPC</a>},</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  {<span class="stringliteral">"net"</span>, <a class="code" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce">CLONE_NEWNET</a>},</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {<span class="stringliteral">"user"</span>, <a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>},</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {<span class="stringliteral">"pid"</span>, <a class="code" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4">CLONE_NEWPID</a>},</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {<span class="stringliteral">"cgroup"</span>, <a class="code" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a">CLONE_NEWCGROUP</a>}</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  };</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="classOption.html">Option<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> = nstypes.<a class="code" href="classhashmap.html#a41f14039c11b5a1ab6c81add74192c9a">get</a>(ns);</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">if</span> (nstype.<a class="code" href="classOption.html#a06eab791122ebc1f8af4ad310e5e7d7e">isNone</a>()) {</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Unknown namespace '"</span> + ns + <span class="stringliteral">"'"</span>);</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> nstype.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>();</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span> }</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// Returns all the supported namespaces by the kernel.</span></div> |
| <div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2"> 124</a></span> <span class="keyword">inline</span> std::set<std::string> <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>()</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> {</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  std::set<std::string> result;</div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="classTry.html">Try<std::list<std::string></a>> entries = <a class="code" href="namespaceos.html#ae1a95c76dff4f12df27a580865904f46">os::ls</a>(<span class="stringliteral">"/proc/self/ns"</span>);</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (entries.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> std::string& entry, entries.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) {</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  result.insert(entry);</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// Returns all the supported namespaces by the kernel.</span></div> |
| <div class="line"><a name="l00138"></a><span class="lineno"><a class="line" href="namespacens.html#ae308e5fb79986971a85717365f2258d4"> 138</a></span> <span class="keyword">inline</span> std::set<int> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a>()</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> {</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  std::set<int> result;</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> std::string& ns, <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>()) {</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="classTry.html">Try<int></a> type = <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>(ns);</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (type.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  result.insert(type.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span> }</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment">// Re-associate the calling process with the specified namespace. The</span></div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// path refers to one of the corresponding namespace entries in the</span></div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// /proc/[pid]/ns/ directory (or bind mounted elsewhere). We do not</span></div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">// allow a process with multiple threads to call this function because</span></div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">// it will lead to some weird situations where different threads of a</span></div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// process are in different namespaces.</span></div> |
| <div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83"> 157</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">const</span> std::string& path,</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">const</span> std::string& ns,</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordtype">bool</span> checkMultithreaded = <span class="keyword">true</span>)</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span> {</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (checkMultithreaded) {</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// Return error if there're multiple threads in the calling process.</span></div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="classTry.html">Try<std::set<pid_t></a>> <a class="code" href="namespacecgroups.html#a9fb61299862484ab2d1bd382ea109ca9">threads</a> = <a class="code" href="namespaceproc.html#a15bf23098084d86bb1f2ac75b863ec24">proc::threads</a>(::getpid());</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">if</span> (threads.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="stringliteral">"Failed to get the threads of the current process: "</span> +</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  threads.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (threads.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>().size() > 1) {</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Multiple threads exist in the current process"</span>);</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">ns::namespaces</a>().count(ns) == 0) {</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</span>);</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="comment">// Currently, we don't support pid namespace as its semantics is</span></div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// different from other namespaces (instead of re-associating the</span></div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// calling thread, it re-associates the *children* of the calling</span></div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// thread with the specified namespace).</span></div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (ns == <span class="stringliteral">"pid"</span>) {</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid namespace is not supported"</span>);</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="classTry.html">Try<int></a> fd = <a class="code" href="namespaceos.html#aee8ea4ec5578b58fd2b12430156ffefa">os::open</a>(path, <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a7a68c9ffaac7dbcd652225dd7c06a54b">O_RDONLY</a> | <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ad6d8fbe4e494b4dbe051612572d3f757">O_CLOEXEC</a>);</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span> (fd.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to open '"</span> + path + <span class="stringliteral">"': "</span> + fd.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> = <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">ns::nstype</a>(ns);</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (nstype.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(nstype.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (::<a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>(), nstype.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) == -1) {</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// Save the errno as it might be overwritten by 'os::close' below.</span></div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="classErrnoError.html">ErrnoError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="namespaceos.html#a7b641801fde90b7b5d1e536969fd28c5">os::close</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <a class="code" href="namespaceos.html#a7b641801fde90b7b5d1e536969fd28c5">os::close</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">return</span> <a class="code" href="structNothing.html">Nothing</a>();</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> }</div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment">// Re-associate the calling process with the specified namespace. The</span></div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// pid specifies the process whose namespace we will associate.</span></div> |
| <div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="namespacens.html#a7e58011de0d8219645c27912fc3bc8f4"> 211</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, <span class="keyword">const</span> std::string& ns)</div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span> {</div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(pid)) {</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid) + <span class="stringliteral">" does not exist"</span>);</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  std::string path = <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid), <span class="stringliteral">"ns"</span>, ns);</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(path)) {</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</span>);</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">ns::setns</a>(path, ns);</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">// Get the inode number of the specified namespace for the specified</span></div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">// pid. The inode number identifies the namespace and can be used for</span></div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// comparisons, i.e., two processes with the same inode for a given</span></div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// namespace type are in the same namespace.</span></div> |
| <div class="line"><a name="l00230"></a><span class="lineno"><a class="line" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328"> 230</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<ino_t></a> <a class="code" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328">getns</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, <span class="keyword">const</span> std::string& ns)</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span> {</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(pid)) {</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid) + <span class="stringliteral">" does not exist"</span>);</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">ns::namespaces</a>().count(ns) < 1) {</div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</span>);</div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  }</div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  std::string path = <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid), <span class="stringliteral">"ns"</span>, ns);</div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">struct </span><a class="code" href="namespacecgroups.html#a78e3c7ca2e422779908eec45f859d757">stat</a> s;</div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">if</span> (::<a class="code" href="namespacecgroups.html#a78e3c7ca2e422779908eec45f859d757">stat</a>(path.c_str(), &s) < 0) {</div> |
| <div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to stat "</span> + ns + <span class="stringliteral">" namespace handle"</span></div> |
| <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="stringliteral">" for pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid));</div> |
| <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  }</div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">return</span> s.st_ino;</div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span> }</div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div> |
| <div class="line"><a name="l00290"></a><span class="lineno"><a class="line" href="namespacens.html#a98bf4d9e11d546326250997a6493f835"> 290</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<pid_t></a> <a class="code" href="namespacens.html#a98bf4d9e11d546326250997a6493f835">clone</a>(</div> |
| <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> target,</div> |
| <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordtype">int</span> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a>,</div> |
| <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keyword">const</span> lambda::function<<span class="keywordtype">int</span>()>& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>,</div> |
| <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">flags</a>)</div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span> {</div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="comment">// NOTE: the order in which we 'setns' is significant, so we use an</span></div> |
| <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="comment">// array here rather than something like a map.</span></div> |
| <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="comment">// The user namespace needs to be entered first if we need to</span></div> |
| <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="comment">// increase the privilege and last if we want to decrease the</span></div> |
| <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="comment">// privilege. Said another way, entering the user namespace first</span></div> |
| <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="comment">// gives an unprivileged user the potential to enter the other</span></div> |
| <div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">// namespaces.</span></div> |
| <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> NAMESPACES = 7;</div> |
| <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">struct</span></div> |
| <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  {</div> |
| <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordtype">int</span> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>;</div> |
| <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  std::string <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>;</div> |
| <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  } <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[NAMESPACES] = {</div> |
| <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  {<a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>, <span class="stringliteral">"user"</span>},</div> |
| <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  {<a class="code" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a">CLONE_NEWCGROUP</a>, <span class="stringliteral">"cgroup"</span>},</div> |
| <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  {<a class="code" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3">CLONE_NEWIPC</a>, <span class="stringliteral">"ipc"</span>},</div> |
| <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  {<a class="code" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3">CLONE_NEWUTS</a>, <span class="stringliteral">"uts"</span>},</div> |
| <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  {<a class="code" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce">CLONE_NEWNET</a>, <span class="stringliteral">"net"</span>},</div> |
| <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  {<a class="code" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4">CLONE_NEWPID</a>, <span class="stringliteral">"pid"</span>},</div> |
| <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  {<a class="code" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4">CLONE_NEWNS</a>, <span class="stringliteral">"mnt"</span>}</div> |
| <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  };</div> |
| <div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div> |
| <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">// Support for user namespaces in all filesystems is incomplete</span></div> |
| <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// until version 3.12 (see 'Availability' in man page of</span></div> |
| <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// 'user_namespaces'), so for now we don't support entering them.</span></div> |
| <div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// TODO(benh): Support user namespaces if the current system can</span></div> |
| <div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// support it, e.g., check the kernel version number or try and do a</span></div> |
| <div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// clone with CLONE_NEWUSER to see if it works. NOTE: before we can</span></div> |
| <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// fully support user namespaces, however, we must take care to</span></div> |
| <div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// either enter the user namespace first or last. We'll want to</span></div> |
| <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="comment">// enter it first if we need to increase the privilege and last if</span></div> |
| <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">// we want to decrease the privilege. Currently nsenter.c from</span></div> |
| <div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// utils-linux does this via doing two passes to make sure we either</span></div> |
| <div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// enter first or last. We'll need to do something similar here once</span></div> |
| <div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// we support user namespaces as well.</span></div> |
| <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">if</span> (nstypes & <a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>) {</div> |
| <div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"User namespaces are not supported"</span>);</div> |
| <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div> |
| <div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div> |
| <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// File descriptors keyed by the (parent) namespace we are entering.</span></div> |
| <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <a class="code" href="classhashmap.html">hashmap<int, int></a> fds = {};</div> |
| <div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div> |
| <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">// Helper for closing a list of file descriptors.</span></div> |
| <div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keyword">auto</span> <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a> = [](<span class="keyword">const</span> std::list<int>& fds) {</div> |
| <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">foreach</span> (<span class="keywordtype">int</span> fd, fds) {</div> |
| <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(fd); <span class="comment">// Need to call the async-signal safe version.</span></div> |
| <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div> |
| <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  };</div> |
| <div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div> |
| <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// NOTE: we do all of this ahead of time so we can be async signal</span></div> |
| <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="comment">// safe after calling fork below.</span></div> |
| <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < NAMESPACES; i++) {</div> |
| <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">// Only open the namespace file descriptor if it's been requested.</span></div> |
| <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[i].<a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> & nstypes) {</div> |
| <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  std::string path =</div> |
| <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(target), <span class="stringliteral">"ns"</span>, <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[i].<a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>);</div> |
| <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <a class="code" href="classTry.html">Try<int></a> fd = <a class="code" href="namespaceos.html#aee8ea4ec5578b58fd2b12430156ffefa">os::open</a>(path, <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a7a68c9ffaac7dbcd652225dd7c06a54b">O_RDONLY</a>);</div> |
| <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">if</span> (fd.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a>(fds.<a class="code" href="classhashmap.html#a3e6a1fdf47dc2216eb8c0900e0bc969e">values</a>());</div> |
| <div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to open '"</span> + path +</div> |
| <div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="stringliteral">"' for entering namespace: "</span> + fd.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> |
| <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  }</div> |
| <div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  fds[<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[i].nstype] = fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>();</div> |
| <div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  }</div> |
| <div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  }</div> |
| <div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div> |
| <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="comment">// We use a domain socket rather than pipes so that we can send back</span></div> |
| <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="comment">// the PID of the final child process. The parent socket is</span></div> |
| <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">// `sockets[0]` and the child socket is `sockets[1]`. Note that both</span></div> |
| <div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// sockets are both read/write but currently only the parent reads</span></div> |
| <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="comment">// and the child writes.</span></div> |
| <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordtype">int</span> sockets[2] = {-1, -1};</div> |
| <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span> (socketpair(AF_UNIX, SOCK_STREAM, 0, sockets) != 0) {</div> |
| <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a>(fds.<a class="code" href="classhashmap.html#a3e6a1fdf47dc2216eb8c0900e0bc969e">values</a>());</div> |
| <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to create Unix domain socket"</span>);</div> |
| <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div> |
| <div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div> |
| <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="comment">// Need to set SO_PASSCRED option in order to receive credentials</span></div> |
| <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">// (which is how we get the pid of the clone'd process, see</span></div> |
| <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="comment">// below). Note that apparently we only need to do this for</span></div> |
| <div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="comment">// receiving, not also for sending.</span></div> |
| <div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> value = 1;</div> |
| <div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keyword">const</span> <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a> <a class="code" href="namespaceos_1_1stat.html#aac17a91dd3f91341b8c4021025e89b04">size</a> = <span class="keyword">sizeof</span>(value);</div> |
| <div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">if</span> (setsockopt(sockets[0], SOL_SOCKET, SO_PASSCRED, &value, size) == -1) {</div> |
| <div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <a class="code" href="classError.html">Error</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to set socket option SO_PASSCRED"</span>);</div> |
| <div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a>(fds.<a class="code" href="classhashmap.html#a3e6a1fdf47dc2216eb8c0900e0bc969e">values</a>());</div> |
| <div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[0]);</div> |
| <div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div> |
| <div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  }</div> |
| <div class="line"><a name="l00388"></a><span class="lineno"> 388</span> </div> |
| <div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">// NOTE: to determine the pid of the final process executing the</span></div> |
| <div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="comment">// specified lambda we use the SCM_CREDENTIALS mechanism of</span></div> |
| <div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="comment">// 'sendmsg' and 'recvmsg'. On Linux there is also a way to do this</span></div> |
| <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="comment">// via 'getsockopt' and SO_PEERCRED which looks easier, but IIUC</span></div> |
| <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="comment">// requires you to do an explicit connect from the child process</span></div> |
| <div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// back to the parent so that there is only one connection per</span></div> |
| <div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="comment">// socket (unlike in our world where the socket can be used by</span></div> |
| <div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="comment">// multiple forks/clones simultaneously because it's just a file</span></div> |
| <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">// descriptor that gets copied after each fork/clone). Perhaps the</span></div> |
| <div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">// SO_PEERCRED is less lines of code but this approach was taken for</span></div> |
| <div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="comment">// now.</span></div> |
| <div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div> |
| <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordtype">char</span> <a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>[1];</div> |
| <div class="line"><a name="l00402"></a><span class="lineno"> 402</span> </div> |
| <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  iovec iov = {0};</div> |
| <div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  iov.iov_base = <a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>;</div> |
| <div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  iov.iov_len = <span class="keyword">sizeof</span>(<a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>);</div> |
| <div class="line"><a name="l00406"></a><span class="lineno"> 406</span> </div> |
| <div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="comment">// Need to allocate a char array large enough to hold "control"</span></div> |
| <div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="comment">// data. However, since this buffer is in reality a 'struct cmsghdr'</span></div> |
| <div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="comment">// we use a union to ensure that it is aligned as required for that</span></div> |
| <div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="comment">// structure.</span></div> |
| <div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keyword">union </span>{</div> |
| <div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keyword">struct </span>cmsghdr cmessage;</div> |
| <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordtype">char</span> control[CMSG_SPACE(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> ucred))];</div> |
| <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  };</div> |
| <div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div> |
| <div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  cmessage.cmsg_len = CMSG_LEN(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> ucred));</div> |
| <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  cmessage.cmsg_level = SOL_SOCKET;</div> |
| <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  cmessage.cmsg_type = SCM_CREDENTIALS;</div> |
| <div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div> |
| <div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  msghdr message = {0};</div> |
| <div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  message.msg_name = <span class="keyword">nullptr</span>;</div> |
| <div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  message.msg_namelen = 0;</div> |
| <div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  message.msg_iov = &iov;</div> |
| <div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  message.msg_iovlen = 1;</div> |
| <div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  message.msg_control = control;</div> |
| <div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  message.msg_controllen = <span class="keyword">sizeof</span>(control); <span class="comment">// CMSG_LEN(sizeof(struct ucred));</span></div> |
| <div class="line"><a name="l00427"></a><span class="lineno"> 427</span> </div> |
| <div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="comment">// Finally, the stack we'll use in the call to os::clone below (we</span></div> |
| <div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="comment">// allocate the stack here in order to keep the call to os::clone</span></div> |
| <div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="comment">// async signal safe, since otherwise it would be doing the dynamic</span></div> |
| <div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="comment">// allocation itself).</span></div> |
| <div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <a class="code" href="structos_1_1Stack.html">os::Stack</a> stack;</div> |
| <div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  stack.<a class="code" href="structos_1_1Stack.html#ad2583ff55fef67647c7a0a7d44e1a8ae">size</a> = 8 * 1024 * 1024,</div> |
| <div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  stack.<a class="code" href="structos_1_1Stack.html#a7aa64105ec625990451f4f0a59baa3f7">address</a> =</div> |
| <div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keyword">new</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span>[stack.<a class="code" href="structos_1_1Stack.html#ad2583ff55fef67647c7a0a7d44e1a8ae">size</a> / <span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> long)];</div> |
| <div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div> |
| <div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> child = fork();</div> |
| <div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordflow">if</span> (child < 0) {</div> |
| <div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keyword">delete</span>[] stack.<a class="code" href="structos_1_1Stack.html#a7aa64105ec625990451f4f0a59baa3f7">address</a>;</div> |
| <div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a>(fds.<a class="code" href="classhashmap.html#a3e6a1fdf47dc2216eb8c0900e0bc969e">values</a>());</div> |
| <div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[0]);</div> |
| <div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div> |
| <div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (child > 0) {</div> |
| <div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="comment">// Parent.</span></div> |
| <div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keyword">delete</span>[] stack.<a class="code" href="structos_1_1Stack.html#a7aa64105ec625990451f4f0a59baa3f7">address</a>;</div> |
| <div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div> |
| <div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a>(fds.<a class="code" href="classhashmap.html#a3e6a1fdf47dc2216eb8c0900e0bc969e">values</a>());</div> |
| <div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div> |
| <div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a> length = recvmsg(sockets[0], &message, 0);</div> |
| <div class="line"><a name="l00452"></a><span class="lineno"> 452</span> </div> |
| <div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">// TODO(benh): Note that whenever we 'kill(child, SIGKILL)' below</span></div> |
| <div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="comment">// we don't guarantee cleanup! It's possible that the</span></div> |
| <div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="comment">// greatgrandchild is still running. Require the greatgrandchild</span></div> |
| <div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="comment">// to read from the socket after sending back it's pid to ensure</span></div> |
| <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="comment">// no orphans.</span></div> |
| <div class="line"><a name="l00458"></a><span class="lineno"> 458</span> </div> |
| <div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">if</span> (length < 0) {</div> |
| <div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="comment">// We failed to read, close the socket and kill the child</span></div> |
| <div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="comment">// (which might die on it's own trying to write to the</span></div> |
| <div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="comment">// socket).</span></div> |
| <div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <a class="code" href="classError.html">Error</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to receive"</span>);</div> |
| <div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[0]);</div> |
| <div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <a class="code" href="namespacecgroups.html#ab75e1e2d1be63eec907bf12306a7c8a7">kill</a>(child, <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a1c2b5693161bbc9d516ef5d16c7b54f5">SIGKILL</a>);</div> |
| <div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div> |
| <div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (length == 0) {</div> |
| <div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">// Socket closed, child must have died, but kill anyway.</span></div> |
| <div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[0]);</div> |
| <div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <a class="code" href="namespacecgroups.html#ab75e1e2d1be63eec907bf12306a7c8a7">kill</a>(child, <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a1c2b5693161bbc9d516ef5d16c7b54f5">SIGKILL</a>);</div> |
| <div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to receive: Socket closed"</span>);</div> |
| <div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  }</div> |
| <div class="line"><a name="l00473"></a><span class="lineno"> 473</span> </div> |
| <div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[0]);</div> |
| <div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div> |
| <div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="comment">// Extract pid.</span></div> |
| <div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">if</span> (CMSG_FIRSTHDR(&message) == <span class="keyword">nullptr</span> ||</div> |
| <div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  CMSG_FIRSTHDR(&message)->cmsg_len != CMSG_LEN(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> ucred)) ||</div> |
| <div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  CMSG_FIRSTHDR(&message)->cmsg_level != SOL_SOCKET ||</div> |
| <div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  CMSG_FIRSTHDR(&message)->cmsg_type != SCM_CREDENTIALS) {</div> |
| <div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <a class="code" href="namespacecgroups.html#ab75e1e2d1be63eec907bf12306a7c8a7">kill</a>(child, <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a1c2b5693161bbc9d516ef5d16c7b54f5">SIGKILL</a>);</div> |
| <div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Bad control data received"</span>);</div> |
| <div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  }</div> |
| <div class="line"><a name="l00484"></a><span class="lineno"> 484</span> </div> |
| <div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid = ((<span class="keyword">struct </span>ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->pid;</div> |
| <div class="line"><a name="l00486"></a><span class="lineno"> 486</span> </div> |
| <div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="comment">// Need to `waitpid` on child process to avoid a zombie. Note that</span></div> |
| <div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="comment">// it's expected that the child will terminate quickly hence</span></div> |
| <div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="comment">// blocking here.</span></div> |
| <div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordtype">int</span> <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>;</div> |
| <div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div> |
| <div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceos.html#a48c86262928f59c5c54d0cb0012e2aba">waitpid</a>(child, &status, 0) == -1) {</div> |
| <div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="keywordflow">if</span> (errno == EINTR) {</div> |
| <div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to `waitpid` on child"</span>);</div> |
| <div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  }</div> |
| <div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ae2b610235f988f4f3109f02a2f395727">WIFSTOPPED</a>(status)) {</div> |
| <div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  }</div> |
| <div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  }</div> |
| <div class="line"><a name="l00504"></a><span class="lineno"> 504</span> </div> |
| <div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  CHECK(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#af9a4ddf9eee6c4a3bc9be070d59b7ccf">WIFEXITED</a>(status) || <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a6953e62fd0dec274a397678d31c344b4">WIFSIGNALED</a>(status));</div> |
| <div class="line"><a name="l00506"></a><span class="lineno"> 506</span> </div> |
| <div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">if</span> (!<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#af9a4ddf9eee6c4a3bc9be070d59b7ccf">WIFEXITED</a>(status) || <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ae0c8840076dd63d5e2367fff4f7f46f3">WEXITSTATUS</a>(status) != 0) {</div> |
| <div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to clone"</span>);</div> |
| <div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  }</div> |
| <div class="line"><a name="l00510"></a><span class="lineno"> 510</span> </div> |
| <div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">return</span> pid;</div> |
| <div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="comment">// Child.</span></div> |
| <div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[0]);</div> |
| <div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div> |
| <div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="comment">// Loop through and 'setns' into all of the parent namespaces that</span></div> |
| <div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="comment">// have been requested.</span></div> |
| <div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < NAMESPACES; i++) {</div> |
| <div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <a class="code" href="classOption.html">Option<int></a> fd = fds.<a class="code" href="classhashmap.html#a41f14039c11b5a1ab6c81add74192c9a">get</a>(<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[i].<a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>);</div> |
| <div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keywordflow">if</span> (fd.<a class="code" href="classOption.html#a4e3bf8416d95246f43c91f1b5c309323">isSome</a>()) {</div> |
| <div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  assert(<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[i].nstype & nstypes);</div> |
| <div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keywordflow">if</span> (::<a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(fd.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>(), <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[i].nstype) < 0) {</div> |
| <div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a>(fds.<a class="code" href="classhashmap.html#a3e6a1fdf47dc2216eb8c0900e0bc969e">values</a>());</div> |
| <div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  _exit(EXIT_FAILURE);</div> |
| <div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  }</div> |
| <div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  }</div> |
| <div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  }</div> |
| <div class="line"><a name="l00529"></a><span class="lineno"> 529</span> </div> |
| <div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">close</a>(fds.<a class="code" href="classhashmap.html#a3e6a1fdf47dc2216eb8c0900e0bc969e">values</a>());</div> |
| <div class="line"><a name="l00531"></a><span class="lineno"> 531</span> </div> |
| <div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="comment">// Fork again to make sure we're actually in those namespaces</span></div> |
| <div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="comment">// (required for the pid namespace at least).</span></div> |
| <div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="comment">// TODO(benh): Don't do a fork if we're not actually entering the</span></div> |
| <div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="comment">// PID namespace since the extra fork is unnecessary.</span></div> |
| <div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> grandchild = fork();</div> |
| <div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keywordflow">if</span> (grandchild < 0) {</div> |
| <div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="comment">// TODO(benh): Exit with `errno` in order to capture `fork` error?</span></div> |
| <div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  _exit(EXIT_FAILURE);</div> |
| <div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (grandchild > 0) {</div> |
| <div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="comment">// Still the (first) child.</span></div> |
| <div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00545"></a><span class="lineno"> 545</span> </div> |
| <div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="comment">// Need to reap the grandchild and then just exit since we're no</span></div> |
| <div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="comment">// longer necessary. Technically when the grandchild exits it'll</span></div> |
| <div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="comment">// be reaped but by doing a `waitpid` we can better propagate</span></div> |
| <div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="comment">// back any errors that might have occurred with the grandchild.</span></div> |
| <div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keywordtype">int</span> <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>;</div> |
| <div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div> |
| <div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceos.html#a48c86262928f59c5c54d0cb0012e2aba">waitpid</a>(grandchild, &status, 0) == -1) {</div> |
| <div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keywordflow">if</span> (errno == EINTR) {</div> |
| <div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  _exit(1);</div> |
| <div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  }</div> |
| <div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ae2b610235f988f4f3109f02a2f395727">WIFSTOPPED</a>(status)) {</div> |
| <div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  }</div> |
| <div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  }</div> |
| <div class="line"><a name="l00564"></a><span class="lineno"> 564</span> </div> |
| <div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  assert(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#af9a4ddf9eee6c4a3bc9be070d59b7ccf">WIFEXITED</a>(status) || <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a6953e62fd0dec274a397678d31c344b4">WIFSIGNALED</a>(status));</div> |
| <div class="line"><a name="l00566"></a><span class="lineno"> 566</span> </div> |
| <div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keywordflow">if</span> (<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#af9a4ddf9eee6c4a3bc9be070d59b7ccf">WIFEXITED</a>(status)) {</div> |
| <div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  _exit(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ae0c8840076dd63d5e2367fff4f7f46f3">WEXITSTATUS</a>(status));</div> |
| <div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  }</div> |
| <div class="line"><a name="l00570"></a><span class="lineno"> 570</span> </div> |
| <div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  assert(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a6953e62fd0dec274a397678d31c344b4">WIFSIGNALED</a>(status));</div> |
| <div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keyword">raise</span>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#aeba4d421572a9d681c73c347f24ad348">WTERMSIG</a>(status));</div> |
| <div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  }</div> |
| <div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div> |
| <div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="comment">// Grandchild (second child, now completely entered in the</span></div> |
| <div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="comment">// namespaces of the target).</span></div> |
| <div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="comment">// Now clone with the specified flags, close the unused socket,</span></div> |
| <div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="comment">// and execute the specified function.</span></div> |
| <div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid = <a class="code" href="namespaceos.html#a06b5d831710f3993abe32fbb3ff69f12">os::clone</a>([=]() {</div> |
| <div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="comment">// Now send back the pid and have it be translated appropriately</span></div> |
| <div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="comment">// by the kernel to the enclosing pid namespace.</span></div> |
| <div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="comment">// NOTE: sending back the pid is best effort because we're going</span></div> |
| <div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="comment">// to exit no matter what.</span></div> |
| <div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  ((<span class="keyword">struct </span>ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->pid = ::getpid();</div> |
| <div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  ((<span class="keyword">struct </span>ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->uid = <a class="code" href="namespaceos.html#ab20654c3bd05280d32833e654c61b1e4">::getuid</a>();</div> |
| <div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  ((<span class="keyword">struct </span>ucred*) CMSG_DATA(CMSG_FIRSTHDR(&message)))->gid = <a class="code" href="namespaceos.html#a3d46f808886a786c2daab6eb1d81b206">::getgid</a>();</div> |
| <div class="line"><a name="l00589"></a><span class="lineno"> 589</span> </div> |
| <div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="keywordflow">if</span> (sendmsg(sockets[1], &message, 0) == -1) {</div> |
| <div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="comment">// Failed to send the pid back to the parent!</span></div> |
| <div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  _exit(EXIT_FAILURE);</div> |
| <div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  }</div> |
| <div class="line"><a name="l00594"></a><span class="lineno"> 594</span> </div> |
| <div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00596"></a><span class="lineno"> 596</span> </div> |
| <div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>();</div> |
| <div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  },</div> |
| <div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <a class="code" href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">flags</a>,</div> |
| <div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  stack);</div> |
| <div class="line"><a name="l00601"></a><span class="lineno"> 601</span> </div> |
| <div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <a class="code" href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">::close</a>(sockets[1]);</div> |
| <div class="line"><a name="l00603"></a><span class="lineno"> 603</span> </div> |
| <div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="comment">// TODO(benh): Kill ourselves with an exit status that we can</span></div> |
| <div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="comment">// decode above to determine why `clone` failed.</span></div> |
| <div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  _exit(pid < 0 ? EXIT_FAILURE : EXIT_SUCCESS);</div> |
| <div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  }</div> |
| <div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <a class="code" href="unreachable_8hpp.html#a0bc63b24b654ca433be7b97a3edde132">UNREACHABLE</a>();</div> |
| <div class="line"><a name="l00609"></a><span class="lineno"> 609</span> }</div> |
| <div class="line"><a name="l00610"></a><span class="lineno"> 610</span> </div> |
| <div class="line"><a name="l00611"></a><span class="lineno"> 611</span> </div> |
| <div class="line"><a name="l00612"></a><span class="lineno"><a class="line" href="namespacens_1_1pid.html"> 612</a></span> <span class="keyword">namespace </span>pid {</div> |
| <div class="line"><a name="l00613"></a><span class="lineno"> 613</span> </div> |
| <div class="line"><a name="l00614"></a><span class="lineno"><a class="line" href="namespacens_1_1pid.html#accb661a0624f57c7dddf1d1252bff780"> 614</a></span> <span class="keyword">inline</span> <a class="code" href="classprocess_1_1Future.html">process::Future<Nothing></a> <a class="code" href="namespacens_1_1pid.html#accb661a0624f57c7dddf1d1252bff780">destroy</a>(ino_t <a class="code" href="namespaceos_1_1stat.html#a324b73852c6436e470533ebe2d90577d">inode</a>)</div> |
| <div class="line"><a name="l00615"></a><span class="lineno"> 615</span> {</div> |
| <div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="comment">// Check we're not trying to kill the root namespace.</span></div> |
| <div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <a class="code" href="classTry.html">Try<ino_t></a> ns = <a class="code" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328">ns::getns</a>(1, <span class="stringliteral">"pid"</span>);</div> |
| <div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keywordflow">if</span> (ns.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(ns.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> |
| <div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  }</div> |
| <div class="line"><a name="l00621"></a><span class="lineno"> 621</span> </div> |
| <div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="keywordflow">if</span> (ns.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>() == <a class="code" href="namespaceos_1_1stat.html#a324b73852c6436e470533ebe2d90577d">inode</a>) {</div> |
| <div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(<span class="stringliteral">"Cannot destroy root pid namespace"</span>);</div> |
| <div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  }</div> |
| <div class="line"><a name="l00625"></a><span class="lineno"> 625</span> </div> |
| <div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="comment">// Or ourselves.</span></div> |
| <div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  ns = <a class="code" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328">ns::getns</a>(::getpid(), <span class="stringliteral">"pid"</span>);</div> |
| <div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="keywordflow">if</span> (ns.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(ns.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> |
| <div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  }</div> |
| <div class="line"><a name="l00631"></a><span class="lineno"> 631</span> </div> |
| <div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="keywordflow">if</span> (ns.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>() == <a class="code" href="namespaceos_1_1stat.html#a324b73852c6436e470533ebe2d90577d">inode</a>) {</div> |
| <div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(<span class="stringliteral">"Cannot destroy own pid namespace"</span>);</div> |
| <div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  }</div> |
| <div class="line"><a name="l00635"></a><span class="lineno"> 635</span> </div> |
| <div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="comment">// Signal all pids in the namespace, including the init pid if it's</span></div> |
| <div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="comment">// still running. Once the init pid has been signalled the kernel</span></div> |
| <div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="comment">// will prevent any new children forking in the namespace and will</span></div> |
| <div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="comment">// also signal all other pids in the namespace.</span></div> |
| <div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <a class="code" href="classTry.html">Try<std::set<pid_t></a>> <a class="code" href="namespaceos.html#a42af1cab63434cedf2b698cd6f49f073">pids</a> = <a class="code" href="namespaceos.html#a42af1cab63434cedf2b698cd6f49f073">os::pids</a>();</div> |
| <div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <span class="keywordflow">if</span> (pids.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(<span class="stringliteral">"Failed to list of processes"</span>);</div> |
| <div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  }</div> |
| <div class="line"><a name="l00644"></a><span class="lineno"> 644</span> </div> |
| <div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="keywordflow">foreach</span> (<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, pids.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) {</div> |
| <div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="comment">// Ignore any errors, probably because the process no longer</span></div> |
| <div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="comment">// exists, and ignorable otherwise.</span></div> |
| <div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <a class="code" href="classTry.html">Try<ino_t></a> ns = <a class="code" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328">ns::getns</a>(pid, <span class="stringliteral">"pid"</span>);</div> |
| <div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keywordflow">if</span> (ns.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>() && ns.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>() == <a class="code" href="namespaceos_1_1stat.html#a324b73852c6436e470533ebe2d90577d">inode</a>) {</div> |
| <div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <a class="code" href="namespacecgroups.html#ab75e1e2d1be63eec907bf12306a7c8a7">kill</a>(pid, <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a1c2b5693161bbc9d516ef5d16c7b54f5">SIGKILL</a>);</div> |
| <div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  }</div> |
| <div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  }</div> |
| <div class="line"><a name="l00653"></a><span class="lineno"> 653</span> </div> |
| <div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="comment">// Get a new snapshot and do a second pass of the pids to capture</span></div> |
| <div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="comment">// any pids that are dying so we can reap them.</span></div> |
| <div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  pids = <a class="code" href="namespaceos.html#a42af1cab63434cedf2b698cd6f49f073">os::pids</a>();</div> |
| <div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  <span class="keywordflow">if</span> (pids.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(<span class="stringliteral">"Failed to list of processes"</span>);</div> |
| <div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  }</div> |
| <div class="line"><a name="l00660"></a><span class="lineno"> 660</span> </div> |
| <div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  std::list<process::Future<Option<int>>> futures;</div> |
| <div class="line"><a name="l00662"></a><span class="lineno"> 662</span> </div> |
| <div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordflow">foreach</span> (<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, pids.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) {</div> |
| <div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <a class="code" href="classTry.html">Try<ino_t></a> ns = <a class="code" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328">ns::getns</a>(pid, <span class="stringliteral">"pid"</span>);</div> |
| <div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="keywordflow">if</span> (ns.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>() && ns.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>() == <a class="code" href="namespaceos_1_1stat.html#a324b73852c6436e470533ebe2d90577d">inode</a>) {</div> |
| <div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  futures.push_back(<a class="code" href="namespaceprocess.html#a8225ae5aa1b4963bb8413312282a91be">process::reap</a>(pid));</div> |
| <div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  }</div> |
| <div class="line"><a name="l00668"></a><span class="lineno"> 668</span> </div> |
| <div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="comment">// Ignore any errors, probably because the process no longer</span></div> |
| <div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="comment">// exists, and ignorable otherwise.</span></div> |
| <div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  }</div> |
| <div class="line"><a name="l00672"></a><span class="lineno"> 672</span> </div> |
| <div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="comment">// Wait for all the signalled processes to terminate. The pid</span></div> |
| <div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="comment">// namespace will then be empty and will be released by the kernel</span></div> |
| <div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="comment">// (unless there are additional references).</span></div> |
| <div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceprocess.html#a0f89a937c1caa20e3048e16aeb0c9736">process::collect</a>(futures)</div> |
| <div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  .<a class="code" href="classprocess_1_1Future.html#a08f6977c10f9f5d9e918ef8fd91f0a5f">then</a>([]() { <span class="keywordflow">return</span> <a class="code" href="structNothing.html">Nothing</a>(); });</div> |
| <div class="line"><a name="l00678"></a><span class="lineno"> 678</span> }</div> |
| <div class="line"><a name="l00679"></a><span class="lineno"> 679</span> </div> |
| <div class="line"><a name="l00680"></a><span class="lineno"> 680</span> } <span class="comment">// namespace pid {</span></div> |
| <div class="line"><a name="l00681"></a><span class="lineno"> 681</span> </div> |
| <div class="line"><a name="l00682"></a><span class="lineno"> 682</span> </div> |
| <div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="comment">// Returns the namespace flags in the string form of bitwise-ORing the</span></div> |
| <div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="comment">// flags, e.g., CLONE_NEWNS | CLONE_NEWNET.</span></div> |
| <div class="line"><a name="l00685"></a><span class="lineno"><a class="line" href="namespacens.html#a28116b46e6543597a11733424cd1aa20"> 685</a></span> <span class="keyword">inline</span> std::string <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(<span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">flags</a>)</div> |
| <div class="line"><a name="l00686"></a><span class="lineno"> 686</span> {</div> |
| <div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <a class="code" href="classhashmap.html">hashmap<unsigned int, std::string></a> names = {</div> |
| <div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  {<a class="code" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4">CLONE_NEWNS</a>, <span class="stringliteral">"CLONE_NEWNS"</span>},</div> |
| <div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  {<a class="code" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3">CLONE_NEWUTS</a>, <span class="stringliteral">"CLONE_NEWUTS"</span>},</div> |
| <div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  {<a class="code" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3">CLONE_NEWIPC</a>, <span class="stringliteral">"CLONE_NEWIPC"</span>},</div> |
| <div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  {<a class="code" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4">CLONE_NEWPID</a>, <span class="stringliteral">"CLONE_NEWPID"</span>},</div> |
| <div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  {<a class="code" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce">CLONE_NEWNET</a>, <span class="stringliteral">"CLONE_NEWNET"</span>},</div> |
| <div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  {<a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>, <span class="stringliteral">"CLONE_NEWUSER"</span>},</div> |
| <div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  {<a class="code" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a">CLONE_NEWCGROUP</a>, <span class="stringliteral">"CLONE_NEWCGROUP"</span>}</div> |
| <div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  };</div> |
| <div class="line"><a name="l00696"></a><span class="lineno"> 696</span> </div> |
| <div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  std::vector<std::string> <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>;</div> |
| <div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> flag, <span class="keyword">const</span> std::string& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>, names) {</div> |
| <div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">if</span> (flags & flag) {</div> |
| <div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  namespaces.push_back(name);</div> |
| <div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  }</div> |
| <div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  }</div> |
| <div class="line"><a name="l00703"></a><span class="lineno"> 703</span> </div> |
| <div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keywordflow">return</span> <a class="code" href="namespacestrings.html#ac315a6174f56cba0d8295f84da265416">strings::join</a>(<span class="stringliteral">" | "</span>, namespaces);</div> |
| <div class="line"><a name="l00705"></a><span class="lineno"> 705</span> }</div> |
| <div class="line"><a name="l00706"></a><span class="lineno"> 706</span> </div> |
| <div class="line"><a name="l00707"></a><span class="lineno"> 707</span> } <span class="comment">// namespace ns {</span></div> |
| <div class="line"><a name="l00708"></a><span class="lineno"> 708</span> </div> |
| <div class="line"><a name="l00709"></a><span class="lineno"> 709</span> <span class="preprocessor">#endif // __LINUX_NS_HPP__</span></div> |
| <div class="ttc" id="3rdparty_2stout_2include_2stout_2windows_8hpp_html_a894c4d58faeee7675b9e7e8244de1386"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a></div><div class="ttdeci">SSIZE_T ssize_t</div><div class="ttdef"><b>Definition:</b> windows.hpp:175</div></div> |
| <div class="ttc" id="namespaceos_html_a69b3969276ffa4cb698b9431ee43bd7c"><div class="ttname"><a href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a></div><div class="ttdeci">bool exists(const std::string &path)</div><div class="ttdef"><b>Definition:</b> exists.hpp:26</div></div> |
| <div class="ttc" id="structNothing_html"><div class="ttname"><a href="structNothing.html">Nothing</a></div><div class="ttdef"><b>Definition:</b> nothing.hpp:16</div></div> |
| <div class="ttc" id="classError_html"><div class="ttname"><a href="classError.html">Error</a></div><div class="ttdef"><b>Definition:</b> errorbase.hpp:35</div></div> |
| <div class="ttc" id="classOption_html"><div class="ttname"><a href="classOption.html">Option< int ></a></div></div> |
| <div class="ttc" id="namespacens_html_a98bf4d9e11d546326250997a6493f835"><div class="ttname"><a href="namespacens.html#a98bf4d9e11d546326250997a6493f835">ns::clone</a></div><div class="ttdeci">Try< pid_t > clone(pid_t target, int nstypes, const lambda::function< int()> &f, int flags)</div><div class="ttdoc">Performs an os::clone after entering a set of namespaces for the specified target process...</div><div class="ttdef"><b>Definition:</b> ns.hpp:290</div></div> |
| <div class="ttc" id="namespaceprocess_html_a62d5333e8ec1817c249cf83e15d568b4"><div class="ttname"><a href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">process::f</a></div><div class="ttdeci">F && f</div><div class="ttdef"><b>Definition:</b> defer.hpp:239</div></div> |
| <div class="ttc" id="exists_8hpp_html"><div class="ttname"><a href="exists_8hpp.html">exists.hpp</a></div></div> |
| <div class="ttc" id="namespacestrings_html_ac315a6174f56cba0d8295f84da265416"><div class="ttname"><a href="namespacestrings.html#ac315a6174f56cba0d8295f84da265416">strings::join</a></div><div class="ttdeci">std::stringstream & join(std::stringstream &stream, const std::string &separator, T &&...args)</div><div class="ttdef"><b>Definition:</b> strings.hpp:294</div></div> |
| <div class="ttc" id="3rdparty_2stout_2include_2stout_2windows_8hpp_html_a1c2b5693161bbc9d516ef5d16c7b54f5"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a1c2b5693161bbc9d516ef5d16c7b54f5">SIGKILL</a></div><div class="ttdeci">const mode_t SIGKILL</div><div class="ttdef"><b>Definition:</b> windows.hpp:325</div></div> |
| <div class="ttc" id="classTry_html"><div class="ttname"><a href="classTry.html">Try</a></div><div class="ttdef"><b>Definition:</b> try.hpp:34</div></div> |
| <div class="ttc" id="ns_8hpp_html_a9aa5c2738ac9781ed9cd8202d87fb089"><div class="ttname"><a href="ns_8hpp.html#a9aa5c2738ac9781ed9cd8202d87fb089">setns</a></div><div class="ttdeci">int setns(int fd, int nstype)</div><div class="ttdef"><b>Definition:</b> ns.hpp:83</div></div> |
| <div class="ttc" id="ns_8hpp_html_a9d5d88148a26086567c3731e2e5e110a"><div class="ttname"><a href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a">CLONE_NEWCGROUP</a></div><div class="ttdeci">#define CLONE_NEWCGROUP</div><div class="ttdef"><b>Definition:</b> ns.hpp:78</div></div> |
| <div class="ttc" id="structprocess_1_1Failure_html"><div class="ttname"><a href="structprocess_1_1Failure.html">process::Failure</a></div><div class="ttdef"><b>Definition:</b> future.hpp:535</div></div> |
| <div class="ttc" id="os_8hpp_html"><div class="ttname"><a href="os_8hpp.html">os.hpp</a></div></div> |
| <div class="ttc" id="namespaceos_html_a7b641801fde90b7b5d1e536969fd28c5"><div class="ttname"><a href="namespaceos.html#a7b641801fde90b7b5d1e536969fd28c5">os::close</a></div><div class="ttdeci">Try< Nothing > close(int fd)</div><div class="ttdef"><b>Definition:</b> close.hpp:24</div></div> |
| <div class="ttc" id="namespaceproc_html_a34396c6140a28f583dc13fee3c3c35d4"><div class="ttname"><a href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">proc::status</a></div><div class="ttdeci">Result< ProcessStatus > status(pid_t pid)</div><div class="ttdef"><b>Definition:</b> proc.hpp:166</div></div> |
| <div class="ttc" id="namespaceos_1_1stat_html_a324b73852c6436e470533ebe2d90577d"><div class="ttname"><a href="namespaceos_1_1stat.html#a324b73852c6436e470533ebe2d90577d">os::stat::inode</a></div><div class="ttdeci">Try< ino_t > inode(const std::string &path)</div><div class="ttdef"><b>Definition:</b> stat.hpp:160</div></div> |
| <div class="ttc" id="classErrnoError_html"><div class="ttname"><a href="classErrnoError.html">ErrnoError</a></div><div class="ttdef"><b>Definition:</b> errorbase.hpp:44</div></div> |
| <div class="ttc" id="namespacens_html_aff4db8d452eb5c8f07fba2ceeb5a7d83"><div class="ttname"><a href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">ns::setns</a></div><div class="ttdeci">Try< Nothing > setns(const std::string &path, const std::string &ns, bool checkMultithreaded=true)</div><div class="ttdef"><b>Definition:</b> ns.hpp:157</div></div> |
| <div class="ttc" id="namespaceprocess_html_a373bd5e2bd8f2694e4589293af477854"><div class="ttname"><a href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">process::base</a></div><div class="ttdeci">event_base * base</div></div> |
| <div class="ttc" id="namespacepath_html_aa86b16a2171cec90bb3337930513ef0f"><div class="ttname"><a href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a></div><div class="ttdeci">std::string join(const std::string &path1, const std::string &path2, const char _separator=os::PATH_SEPARATOR)</div><div class="ttdef"><b>Definition:</b> path.hpp:29</div></div> |
| <div class="ttc" id="namespaceprocess_html_a8225ae5aa1b4963bb8413312282a91be"><div class="ttname"><a href="namespaceprocess.html#a8225ae5aa1b4963bb8413312282a91be">process::reap</a></div><div class="ttdeci">Future< Option< int > > reap(pid_t pid)</div></div> |
| <div class="ttc" id="classOption_html_a4e3bf8416d95246f43c91f1b5c309323"><div class="ttname"><a href="classOption.html#a4e3bf8416d95246f43c91f1b5c309323">Option::isSome</a></div><div class="ttdeci">bool isSome() const </div><div class="ttdef"><b>Definition:</b> option.hpp:108</div></div> |
| <div class="ttc" id="namespacens_html_ae308e5fb79986971a85717365f2258d4"><div class="ttname"><a href="namespacens.html#ae308e5fb79986971a85717365f2258d4">ns::nstypes</a></div><div class="ttdeci">std::set< int > nstypes()</div><div class="ttdef"><b>Definition:</b> ns.hpp:138</div></div> |
| <div class="ttc" id="ns_8hpp_html_a2ba1673aa7423b46a7bcfa8f68cd2bce"><div class="ttname"><a href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce">CLONE_NEWNET</a></div><div class="ttdeci">#define CLONE_NEWNET</div><div class="ttdef"><b>Definition:</b> ns.hpp:70</div></div> |
| <div class="ttc" id="namespaceos_html_ab20654c3bd05280d32833e654c61b1e4"><div class="ttname"><a href="namespaceos.html#ab20654c3bd05280d32833e654c61b1e4">os::getuid</a></div><div class="ttdeci">Result< uid_t > getuid(const Option< std::string > &user=None())</div><div class="ttdef"><b>Definition:</b> su.hpp:40</div></div> |
| <div class="ttc" id="classhashmap_html"><div class="ttname"><a href="classhashmap.html">hashmap</a></div><div class="ttdef"><b>Definition:</b> hashmap.hpp:36</div></div> |
| <div class="ttc" id="structos_1_1Stack_html_a7aa64105ec625990451f4f0a59baa3f7"><div class="ttname"><a href="structos_1_1Stack.html#a7aa64105ec625990451f4f0a59baa3f7">os::Stack::address</a></div><div class="ttdeci">unsigned long long * address</div><div class="ttdef"><b>Definition:</b> linux.hpp:57</div></div> |
| <div class="ttc" id="structos_1_1Stack_html_ad2583ff55fef67647c7a0a7d44e1a8ae"><div class="ttname"><a href="structos_1_1Stack.html#ad2583ff55fef67647c7a0a7d44e1a8ae">os::Stack::size</a></div><div class="ttdeci">size_t size</div><div class="ttdef"><b>Definition:</b> linux.hpp:56</div></div> |
| <div class="ttc" id="3rdparty_2stout_2include_2stout_2windows_8hpp_html_ab03ced250ed239bc3b50b669493997f9"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a></div><div class="ttdeci">DWORD pid_t</div><div class="ttdef"><b>Definition:</b> windows.hpp:170</div></div> |
| <div class="ttc" id="structos_1_1Stack_html"><div class="ttname"><a href="structos_1_1Stack.html">os::Stack</a></div><div class="ttdef"><b>Definition:</b> linux.hpp:54</div></div> |
| <div class="ttc" id="namespaceos_html_a06b5d831710f3993abe32fbb3ff69f12"><div class="ttname"><a href="namespaceos.html#a06b5d831710f3993abe32fbb3ff69f12">os::clone</a></div><div class="ttdeci">pid_t clone(const lambda::function< int()> &func, int flags, Option< Stack > stack=None())</div><div class="ttdef"><b>Definition:</b> linux.hpp:61</div></div> |
| <div class="ttc" id="namespacens_1_1pid_html_accb661a0624f57c7dddf1d1252bff780"><div class="ttname"><a href="namespacens_1_1pid.html#accb661a0624f57c7dddf1d1252bff780">ns::pid::destroy</a></div><div class="ttdeci">process::Future< Nothing > destroy(ino_t inode)</div><div class="ttdef"><b>Definition:</b> ns.hpp:614</div></div> |
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| <div class="ttc" id="namespaceprocess_1_1internal_html_a832724d89f7b1582f0a9ba2f66e745f1"><div class="ttname"><a href="namespaceprocess_1_1internal.html#a832724d89f7b1582f0a9ba2f66e745f1">process::internal::close</a></div><div class="ttdeci">void close(const hashset< int > &fds)</div><div class="ttdef"><b>Definition:</b> subprocess.hpp:69</div></div> |
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