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Posted to commits@mesos.apache.org by gi...@apache.org on 2018/05/02 16:04:45 UTC
[3/5] mesos-site git commit: Updated the website built from mesos
SHA: eb371a2.
http://git-wip-us.apache.org/repos/asf/mesos-site/blob/4aba3b68/content/api/latest/c++/link_2internal_8hpp_source.html
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<div class="title">internal.hpp</div> </div>
</div><!--header-->
<div class="contents">
-<a href="link_2internal_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><s
pan 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">// di
stributed 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_ROUTING_LINK_INTERNAL_HPP__</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define __LINUX_ROUTING_LINK_INTERNAL_HPP__<
/span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <errno.h></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <sys/ioctl.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <sys/socket.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <linux/if.h></span> <span class="co
mment">// Must be included after sys/socket.h.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <netlink/cache.h></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <netlink/errno.h></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <netlink/socket.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 <netlink/route/link.h></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <s
pan class="preprocessor">#include <string></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="none_8hpp.html">stout/none.hpp</a>></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="os_8hpp.html">stout/os.hpp</a>></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span cl
ass="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "<a class="code" href="internal_8hpp.html">linux/routing/internal.hpp</a>"</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">namespace </span><a class="code" href="namespacerouting.html">routing</a> {</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="keyword">template</span> <></div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="namespacerouting.html#a9f14dd8971b2d42
b0acf423a5f5746b2"> 47</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespacerouting.html#a728e253aba8e42f601752ddc771e9902">cleanup</a>(<span class="keyword">struct</span> rtnl_link* link)</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>  rtnl_link_put(link);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link.html"> 52</a></span> <span class="keyword">namespace </span>link {</div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html"> 53</a></span> <span class="keyword">namespace </span><
a class="code" href="namespaceinternal.html">internal</a> {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">// Returns the netlink link object associated with a given link by its</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// name. Returns None if the link is not found.</span></div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#a01998838b3ff4f3123f42927f7f54738"> 57</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> <span class="keyword">get</span>(<span class="keyword">const</span> std::string& link)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> {</div><div class="line"
><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">if</span> (socket.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </d
iv><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// Dump all the netlink link objects from kernel. Note that the flag</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">// AF_UNSPEC means all available families.</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">struct </span>nl_cache* c = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_link_alloc_cache(socket.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>().get(), AF_UNSPEC, &c);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyw
ordflow">if</span> (error != 0) {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(nl_geterror(error));</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct nl_cache></a> cache(c);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">struct </span>rtnl_link* l = rtnl_link_get_by_name(cache.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>(), link.c_str());</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (l == <span clas
s="keyword">nullptr</span>) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>(l);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// Returns the netlink link object associat
ed with a given link by its</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// interface index. Returns None if the link is not found.</span></div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#acc05997c299385774dd15729e3b2c147"> 84</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> <span class="keyword">get</span>(<span class="keywordtype">int</span> <a class="code" href="namespacerouting_1_1link.html#a26486cdba01ef1c80706b1e07e8a6d3f">index</a>)</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" href="namespacerouting.html#aee51d4e36a57ba
b7d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (socket.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// Dump all the netlink link objects from kernel. Note that the flag</span></div><div class="line">
<a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// AF_UNSPEC means all available families.</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">struct </span>nl_cache* c = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_link_alloc_cache(socket.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>().get(), AF_UNSPEC, &c);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Erro
r</a>(nl_geterror(error));</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</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>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct nl_cache></a> cache(c);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">struct </span>rtnl_link* l = rtnl_link_get(cache.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>(), <a class="code" href="namespacerouting_1_1link.html#a26486cdba01ef1c80706b1e07e8a6d3f">index</a>);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span> (l == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class
="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>(l);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// Tests if the flags are set on the link. Returns None if the link is</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span clas
s="comment">// not found.</span></div><div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#a7a252b06125fcedef9ce27135306d05d"> 111</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<bool></a> <a class="code" href="namespacerouting_1_1link_1_1internal.html#a7a252b06125fcedef9ce27135306d05d">test</a>(<span class="keyword">const</span> std::string& _link, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="namespaceflags.html">flags</a>)</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="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <span class="keyword">get</span>(_link);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114<
/span>  <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div><div class="line"><a name="l00119"></a><span class="li
neno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> flags == (rtnl_link_get_flags(link.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>().get()) & flags);</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> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// Sets the flags on the link. Returns false if the link is not found.</span></div><div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#abfdfc99e016fe858117fa1767cef2be0"> 125</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<bool&
gt;</a> <span class="keyword">set</span>(<span class="keyword">const</span> std::string& _link, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae85c6">flags</a>)</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> {</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <span class="keyword">get</span>(_link);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code" href="cla
ssResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> <span class="keyword">false</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> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// TODO(jieyu): We use ioctl to set the flags because the interfaces</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// in libnl have some issues with virtual devices.</s
pan></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">struct </span>ifreq ifr;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  memset(&ifr, 0, <span class="keyword">sizeof</span>(ifr));</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// Get the existing flags and take a bit-wise OR.</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  ifr.ifr_flags = (rtnl_link_get_flags(link.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>().get()) | <a class="code" href="namespaceflags.html">flags</a>);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  strncpy(ifr.ifr_name
, _link.c_str(), IFNAMSIZ);</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">int</span> fd = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">::socket</a>(AF_INET, SOCK_STREAM, 0);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (fd == -1) {</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</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>  <span class="keywordflow">if</span> (ioctl(fd, SIOCSIFFLAGS,
&ifr) == -1) {</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span> (errno == ENODEV) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// Save the error string as os::close may overwrite errno.</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">const</span> std::string message = <a class="code" href="namespaceos.ht
ml#aa9ac22b4028f187826a9861373006abf">os::strerror</a>(errno);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(message);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> <
span class="keyword">true</span>;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> } <span class="comment">// namespace internal {</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> } <span class="comment">// namespace link {</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> } <span class="comment">// namespace routing {</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor">#endif // __LINUX_ROUTING_LINK_INTERNAL_HPP__</span></div><div class="ttc" id="namespaceos_html_aa9ac22b4028f187826a9861373006abf"><div class="ttname"><a href="namespaceos.html#aa9ac22b4028f1
87826a9861373006abf">os::strerror</a></div><div class="ttdeci">std::string strerror(int errno_)</div><div class="ttdoc">A thread-safe version of strerror. </div><div class="ttdef"><b>Definition:</b> strerror.hpp:30</div></div>
+<a href="link_2internal_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><s
pan 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">// di
stributed 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_ROUTING_LINK_INTERNAL_HPP__</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define __LINUX_ROUTING_LINK_INTERNAL_HPP__<
/span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <errno.h></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <sys/ioctl.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <sys/socket.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <linux/if.h></span> <span class="co
mment">// Must be included after sys/socket.h.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <netlink/cache.h></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <netlink/errno.h></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <netlink/socket.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 <netlink/route/link.h></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <s
pan class="preprocessor">#include <string></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="none_8hpp.html">stout/none.hpp</a>></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="os_8hpp.html">stout/os.hpp</a>></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span cl
ass="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "<a class="code" href="internal_8hpp.html">linux/routing/internal.hpp</a>"</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">namespace </span><a class="code" href="namespacerouting.html">routing</a> {</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="keyword">template</span> <></div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="namespacerouting.html#a9f14dd8971b2d42
b0acf423a5f5746b2"> 47</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespacerouting.html#a728e253aba8e42f601752ddc771e9902">cleanup</a>(<span class="keyword">struct</span> rtnl_link* link)</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>  rtnl_link_put(link);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link.html"> 52</a></span> <span class="keyword">namespace </span>link {</div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html"> 53</a></span> <span class="keyword">namespace </span><
a class="code" href="namespaceinternal.html">internal</a> {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">// Returns the netlink link object associated with a given link by its</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// name. Returns None if the link is not found.</span></div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#a01998838b3ff4f3123f42927f7f54738"> 57</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> <span class="keyword">get</span>(<span class="keyword">const</span> std::string& link)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> {</div><div class="line"
><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">if</span> (socket.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </d
iv><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// Dump all the netlink link objects from kernel. Note that the flag</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">// AF_UNSPEC means all available families.</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">struct </span>nl_cache* c = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_link_alloc_cache(socket-><a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>(), AF_UNSPEC, &c);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywor
dflow">if</span> (error != 0) {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(nl_geterror(error));</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct nl_cache></a> cache(c);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">struct </span>rtnl_link* l = rtnl_link_get_by_name(cache.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>(), link.c_str());</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (l == <span class=
"keyword">nullptr</span>) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>(l);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// Returns the netlink link object associated
with a given link by its</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// interface index. Returns None if the link is not found.</span></div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#acc05997c299385774dd15729e3b2c147"> 84</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> <span class="keyword">get</span>(<span class="keywordtype">int</span> <a class="code" href="namespacerouting_1_1link.html#a26486cdba01ef1c80706b1e07e8a6d3f">index</a>)</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" href="namespacerouting.html#aee51d4e36a57bab7
d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (socket.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// Dump all the netlink link objects from kernel. Note that the flag</span></div><div class="line"><a
name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// AF_UNSPEC means all available families.</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">struct </span>nl_cache* c = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_link_alloc_cache(socket-><a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>(), AF_UNSPEC, &c);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a
>(nl_geterror(error));</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</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>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct nl_cache></a> cache(c);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">struct </span>rtnl_link* l = rtnl_link_get(cache.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>(), <a class="code" href="namespacerouting_1_1link.html#a26486cdba01ef1c80706b1e07e8a6d3f">index</a>);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span> (l == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="ke
ywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>(l);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// Tests if the flags are set on the link. Returns None if the link is</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="c
omment">// not found.</span></div><div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#a7a252b06125fcedef9ce27135306d05d"> 111</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<bool></a> <a class="code" href="namespacerouting_1_1link_1_1internal.html#a7a252b06125fcedef9ce27135306d05d">test</a>(<span class="keyword">const</span> std::string& _link, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="namespaceflags.html">flags</a>)</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="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <span class="keyword">get</span>(_link);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</spa
n>  <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</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> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> flags == (rtnl_link_get_flags(link-><a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>()) & flags);</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> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// Sets the flags on the link. Returns false if the link is not found.</span></div><div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="namespacerouting_1_1link_1_1internal.html#abfdfc99e016fe858117fa1767cef2be0"> 125</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<bool></a
> <span class="keyword">set</span>(<span class="keyword">const</span> std::string& _link, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae85c6">flags</a>)</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> {</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <span class="keyword">get</span>(_link);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code" href="classResu
lt.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> <span class="keyword">false</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> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// TODO(jieyu): We use ioctl to set the flags because the interfaces</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// in libnl have some issues with virtual devices.</span></
div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">struct </span>ifreq ifr;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  memset(&ifr, 0, <span class="keyword">sizeof</span>(ifr));</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// Get the existing flags and take a bit-wise OR.</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  ifr.ifr_flags = (rtnl_link_get_flags(link-><a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>()) | <a class="code" href="namespaceflags.html">flags</a>);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  strncpy(ifr.ifr_name, _link.
c_str(), IFNAMSIZ);</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">int</span> fd = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">::socket</a>(AF_INET, SOCK_STREAM, 0);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (fd == -1) {</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</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>  <span class="keywordflow">if</span> (ioctl(fd, SIOCSIFFLAGS, &ifr
) == -1) {</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span> (errno == ENODEV) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// Save the error string as os::close may overwrite errno.</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">const</span> std::string message = <a class="code" href="namespaceos.html#aa9ac
22b4028f187826a9861373006abf">os::strerror</a>(errno);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(message);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> <span cla
ss="keyword">true</span>;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> } <span class="comment">// namespace internal {</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> } <span class="comment">// namespace link {</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> } <span class="comment">// namespace routing {</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor">#endif // __LINUX_ROUTING_LINK_INTERNAL_HPP__</span></div><div class="ttc" id="namespaceos_html_aa9ac22b4028f187826a9861373006abf"><div class="ttname"><a href="namespaceos.html#aa9ac22b4028f187826a98
61373006abf">os::strerror</a></div><div class="ttdeci">std::string strerror(int errno_)</div><div class="ttdoc">A thread-safe version of strerror. </div><div class="ttdef"><b>Definition:</b> strerror.hpp:30</div></div>
<div class="ttc" id="classResult_html_ac2cdc0db9f9d29a5bb2f1cf19c29da49"><div class="ttname"><a href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">Result::isNone</a></div><div class="ttdeci">bool isNone() const </div><div class="ttdef"><b>Definition:</b> result.hpp:112</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="classTry_html_a8bc7f43e75a47111ea18e9c83b007be5"><div class="ttname"><a href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">Try::get</a></div><div class="ttdeci">T & get()&</div><div class="ttdef"><b>Definition:</b> try.hpp:73</div></div>