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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"> * lib/route/link/bridge.c AF_BRIDGE link oeprations</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-private/netlink.h></span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <netlink/netlink.h></span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <netlink/attr.h></span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <netlink/route/rtnl.h></span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <netlink-private/route/link/api.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">#define BRIDGE_ATTR_PORT_STATE 0x0001</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"><a class="code" href="structbridge__data.html"> 20</a></span> <span class="keyword">struct </span><a class="code" href="structbridge__data.html">bridge_data</a></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>  uint8_t b_port_state;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  uint32_t ce_mask; <span class="comment">/* HACK to support attr macros */</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</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="keyword">static</span> <span class="keywordtype">void</span> *bridge_alloc(<span class="keyword">struct</span> <a class="code" href="structrtnl__link.html" title="Link object.">rtnl_link</a> *link)</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="keywordflow">return</span> calloc(1, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structbridge__data.html">bridge_data</a>));</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> }</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *bridge_clone(<span class="keyword">struct</span> <a class="code" href="structrtnl__link.html" title="Link object.">rtnl_link</a> *link, <span class="keywordtype">void</span> *data)</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">struct </span><a class="code" href="structbridge__data.html">bridge_data</a> *bd;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">if</span> ((bd = bridge_alloc(link)))</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  memcpy(bd, data, <span class="keyword">sizeof</span>(*bd));</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">return</span> bd;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> }</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">static</span> <span class="keywordtype">void</span> bridge_free(<span class="keyword">struct</span> <a class="code" href="structrtnl__link.html" title="Link object.">rtnl_link</a> *link, <span class="keywordtype">void</span> *data)</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  free(data);</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</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="keyword">static</span> <span class="keywordtype">int</span> bridge_parse_protinfo(<span class="keyword">struct</span> <a class="code" href="structrtnl__link.html" title="Link object.">rtnl_link</a> *link, <span class="keyword">struct</span> nlattr *attr,</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">void</span> *data)</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="keyword">struct </span><a class="code" href="structbridge__data.html">bridge_data</a> *bd = data;</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>  bd->b_port_state = <a class="code" href="group__attr.html#ga9ca4618a38f1567b1e42b1f21be887c9" title="Return value of 8 bit integer attribute.">nla_get_u8</a>(attr);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  bd->ce_mask |= BRIDGE_ATTR_PORT_STATE;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">static</span> <span class="keywordtype">void</span> bridge_dump_details(<span class="keyword">struct</span> <a class="code" href="structrtnl__link.html" title="Link object.">rtnl_link</a> *link,</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p, <span class="keywordtype">void</span> *data)</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">struct </span><a class="code" href="structbridge__data.html">bridge_data</a> *bd = data;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (bd->ce_mask & BRIDGE_ATTR_PORT_STATE)</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="group__utils.html#ga527075856a5427170865a6f409298cdf" title="Dump a formatted character string.">nl_dump</a>(p, <span class="stringliteral">"port-state %u "</span>, bd->b_port_state);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> }</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> <span class="keyword">static</span> <span class="keywordtype">int</span> bridge_compare(<span class="keyword">struct</span> <a class="code" href="structrtnl__link.html" title="Link object.">rtnl_link</a> *_a, <span class="keyword">struct</span> <a class="code" href="structrtnl__link.html" title="Link object.">rtnl_link</a> *_b,</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">int</span> family, uint32_t attrs, <span class="keywordtype">int</span> flags)</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>  <span class="keyword">struct </span><a class="code" href="structbridge__data.html">bridge_data</a> *a = (<span class="keyword">struct </span><a class="code" href="structbridge__data.html">bridge_data</a> *)_a->l_af_data;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">struct</span> <a class="code" href="structbridge__data.html">bridge_data</a> *b = (<span class="keyword">struct</span> <a class="code" href="structbridge__data.html">bridge_data</a> *)_b->l_af_data;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">int</span> diff = 0;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#define BRIDGE_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, BRIDGE_ATTR_##ATTR, a, b, EXPR)</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span> diff |= BRIDGE_DIFF(PORT_STATE, a->b_port_state != b->b_port_state);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">return</span> diff;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#undef BRIDGE_DIFF</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span>}</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> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structnla__policy.html" title="Attribute validation policy.">nla_policy</a> protinfo_policy = {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  .<a class="code" href="structnla__policy.html#aaa36c9d1e298fc9e4ee16a8fb553b32a" title="Type of attribute or NLA_UNSPEC.">type</a> = <a class="code" href="group__attr.html#ggadf764cbdea00d65edcd07bb9953ad2b7a5e9fb615f67cd1b0232f82f978d76b39" title="8 bit integer">NLA_U8</a>,</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> };</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>rtnl_link_af_ops bridge_ops = {</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  .ao_family = AF_BRIDGE,</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  .ao_alloc = &bridge_alloc,</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  .ao_clone = &bridge_clone,</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  .ao_free = &bridge_free,</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  .ao_parse_protinfo = &bridge_parse_protinfo,</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  .ao_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9ac026c3d5f94da73f82e0f796138a409e" title="Dump all attributes but no statistics.">NL_DUMP_DETAILS</a>] = &bridge_dump_details,</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  .ao_protinfo_policy = &protinfo_policy,</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  .ao_compare = &bridge_compare,</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> };</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">static</span> <span class="keywordtype">void</span> __init bridge_init(<span class="keywordtype">void</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"> 97</span>  <a class="code" href="group__link__API.html#ga77972036d59b7cd5e29108192cdd9b87" title="Register operations for a link address family.">rtnl_link_af_register</a>(&bridge_ops);</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> <span class="keyword">static</span> <span class="keywordtype">void</span> __exit bridge_exit(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="group__link__API.html#ga6d90b01c5b66b218409413e39cbbb7fe" title="Unregister operations for a link address family.">rtnl_link_af_unregister</a>(&bridge_ops);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div>
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