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 <span id="projectnumber">3.2.21</span>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * src/nl-class-add.c Add/Update/Replace Traffic Class</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * License as published by the Free Software Foundation version 2.1</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * of the License.</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"> * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch></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> </div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <netlink/cli/utils.h></span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <netlink/cli/tc.h></span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <netlink/cli/qdisc.h></span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <netlink/cli/class.h></span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <netlink/cli/link.h></span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <netlink-private/route/tc-api.h></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="keyword">static</span> <span class="keywordtype">int</span> quiet = 0;</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">static</span> <span class="keywordtype">void</span> print_usage(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> {</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  printf(</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="stringliteral">"Usage: nl-class-add [OPTIONS]... class [CONFIGURATION]...\n"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="stringliteral">"\n"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="stringliteral">"OPTIONS\n"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="stringliteral">" -q, --quiet Do not print informal notifications.\n"</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="stringliteral">" -h, --help Show this help text.\n"</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="stringliteral">" -v, --version Show versioning information.\n"</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="stringliteral">" --update Update class if it exists.\n"</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="stringliteral">" --update-only Only update class, never create it.\n"</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="stringliteral">" -d, --dev=DEV Network device the class should be attached to.\n"</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="stringliteral">" -i, --id=ID ID of new class (default: auto-generated)\n"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="stringliteral">" -p, --parent=ID ID of parent { root | ingress | class-ID }\n"</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="stringliteral">" --mtu=SIZE Overwrite MTU (default: MTU of network device)\n"</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="stringliteral">" --mpu=SIZE Minimum packet size on the link (default: 0).\n"</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="stringliteral">" --overhead=SIZE Overhead in bytes per packet (default: 0).\n"</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="stringliteral">" --linktype=TYPE Overwrite linktype (default: type of network device)\n"</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="stringliteral">"\n"</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="stringliteral">"CONFIGURATION\n"</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="stringliteral">" -h, --help Show help text of class specific options.\n"</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="stringliteral">"\n"</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="stringliteral">"EXAMPLE\n"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="stringliteral">" $ nl-class-add --dev=eth1 --parent=root htb --rate=100mbit\n"</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="stringliteral">"\n"</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  );</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  exit(0);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</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> <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])</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="keyword">struct </span>nl_sock *sock;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">struct </span>rtnl_class *<span class="keyword">class</span>;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">struct </span>rtnl_tc *tc;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">struct </span>nl_cache *link_cache;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">struct </span><a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> dp = {</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  .<a class="code" href="structnl__dump__params.html#ae36d840078202bf028a6611d2e1f4ea5" title="Specifies the type of dump that is requested.">dp_type</a> = <a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9ac026c3d5f94da73f82e0f796138a409e" title="Dump all attributes but no statistics.">NL_DUMP_DETAILS</a>,</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  .dp_fd = stdout,</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  };</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">struct </span><a class="code" href="structnl__cli__tc__module.html">nl_cli_tc_module</a> *tm;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">struct </span>rtnl_tc_ops *ops;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">int</span> err, flags = NLM_F_CREATE | NLM_F_EXCL;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">char</span> *kind, *<span class="keywordtype">id</span> = NULL;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  sock = nl_cli_alloc_socket();</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  nl_cli_connect(sock, NETLINK_ROUTE);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  link_cache = nl_cli_link_alloc_cache(sock);</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>  <span class="keyword">class </span>= nl_cli_class_alloc();</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  tc = (<span class="keyword">struct </span>rtnl_tc *) <span class="keyword">class</span>;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  </div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">for</span> (;;) {</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">int</span> c, optidx = 0;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  ARG_UPDATE = 257,</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  ARG_UPDATE_ONLY = 258,</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  ARG_MTU,</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  ARG_MPU,</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  ARG_OVERHEAD,</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  ARG_LINKTYPE,</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  };</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">static</span> <span class="keyword">struct </span>option long_opts[] = {</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  { <span class="stringliteral">"quiet"</span>, 0, 0, <span class="charliteral">'q'</span> },</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  { <span class="stringliteral">"help"</span>, 0, 0, <span class="charliteral">'h'</span> },</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  { <span class="stringliteral">"version"</span>, 0, 0, <span class="charliteral">'v'</span> },</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  { <span class="stringliteral">"dev"</span>, 1, 0, <span class="charliteral">'d'</span> },</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  { <span class="stringliteral">"parent"</span>, 1, 0, <span class="charliteral">'p'</span> },</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  { <span class="stringliteral">"id"</span>, 1, 0, <span class="charliteral">'i'</span> },</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  { <span class="stringliteral">"update"</span>, 0, 0, ARG_UPDATE },</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  { <span class="stringliteral">"update-only"</span>, 0, 0, ARG_UPDATE_ONLY },</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  { <span class="stringliteral">"mtu"</span>, 1, 0, ARG_MTU },</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  { <span class="stringliteral">"mpu"</span>, 1, 0, ARG_MPU },</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  { <span class="stringliteral">"overhead"</span>, 1, 0, ARG_OVERHEAD },</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  { <span class="stringliteral">"linktype"</span>, 1, 0, ARG_LINKTYPE },</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  { 0, 0, 0, 0 }</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>  </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  c = getopt_long(argc, argv, <span class="stringliteral">"+qhvd:p:i:"</span>,</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  long_opts, &optidx);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">if</span> (c == -1)</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">break</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">switch</span> (c) {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">case</span> <span class="charliteral">'q'</span>: quiet = 1; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">case</span> <span class="charliteral">'h'</span>: print_usage(); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">case</span> <span class="charliteral">'v'</span>: nl_cli_print_version(); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">case</span> <span class="charliteral">'d'</span>: nl_cli_tc_parse_dev(tc, link_cache, optarg); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">case</span> <span class="charliteral">'p'</span>: nl_cli_tc_parse_parent(tc, optarg); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">case</span> <span class="charliteral">'i'</span>: <span class="keywordtype">id</span> = strdup(optarg); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">case</span> ARG_UPDATE: flags = NLM_F_CREATE; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">case</span> ARG_UPDATE_ONLY: flags = 0; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">case</span> ARG_MTU: nl_cli_tc_parse_mtu(tc, optarg); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">case</span> ARG_MPU: nl_cli_tc_parse_mpu(tc, optarg); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">case</span> ARG_OVERHEAD: nl_cli_tc_parse_overhead(tc, optarg); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">case</span> ARG_LINKTYPE: nl_cli_tc_parse_linktype(tc, optarg); <span class="keywordflow">break</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>  }</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>  <span class="keywordflow">if</span> (optind >= argc)</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  print_usage();</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="keywordflow">if</span> (!<a class="code" href="group__tc.html#ga62fd09aa6863f4eed91f3631f88d85c4" title="Return interface index of traffic control object.">rtnl_tc_get_ifindex</a>(tc))</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="group__cli.html#ga6eb1ac48798f073c336d918eaa88e34c" title="Print error message and quit application.">nl_cli_fatal</a>(EINVAL, <span class="stringliteral">"You must specify a network device (--dev=XXX)"</span>);</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>  <span class="keywordflow">if</span> (!<a class="code" href="group__tc.html#ga03760594ee56c33d6c9fa12cb82e7ac7" title="Return parent identifier of a traffic control object.">rtnl_tc_get_parent</a>(tc))</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="group__cli.html#ga6eb1ac48798f073c336d918eaa88e34c" title="Print error message and quit application.">nl_cli_fatal</a>(EINVAL, <span class="stringliteral">"You must specify a parent (--parent=XXX)"</span>);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (<span class="keywordtype">id</span>) {</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  nl_cli_tc_parse_handle(tc, <span class="keywordtype">id</span>, 1);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  free(<span class="keywordtype">id</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> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  kind = argv[optind++];</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="group__tc.html#ga10a36dfbf2adc72a76ebec9b43b65fb3" title="Define the type of traffic control object.">rtnl_tc_set_kind</a>(tc, kind);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span> (!(ops = rtnl_tc_get_ops(tc)))</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="group__cli.html#ga6eb1ac48798f073c336d918eaa88e34c" title="Print error message and quit application.">nl_cli_fatal</a>(ENOENT, <span class="stringliteral">"Unknown class \"%s\""</span>, kind);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span> (!(tm = nl_cli_tc_lookup(ops)))</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="group__cli.html#ga6eb1ac48798f073c336d918eaa88e34c" title="Print error message and quit application.">nl_cli_fatal</a>(ENOTSUP, <span class="stringliteral">"class type \"%s\" not supported."</span>, kind);</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>  tm->tm_parse_argv(tc, argc, argv);</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>  <span class="keywordflow">if</span> (!quiet) {</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  printf(<span class="stringliteral">"Adding "</span>);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="group__object.html#ga22a8e9cfa628d4346de3655523fd90b3" title="Dump this object according to the specified parameters.">nl_object_dump</a>(OBJ_CAST(<span class="keyword">class</span>), &dp);</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="keywordflow">if</span> ((err = <a class="code" href="group__class.html#ga2ee0c64f6fc7bd5e15fafcd75783a3d1" title="Add/Update traffic class.">rtnl_class_add</a>(sock, <span class="keyword">class</span>, flags)) < 0)</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="group__cli.html#ga6eb1ac48798f073c336d918eaa88e34c" title="Print error message and quit application.">nl_cli_fatal</a>(EINVAL, <span class="stringliteral">"Unable to add class: %s"</span>, nl_geterror(err));</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> }</div>
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