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<h1>lib/route/neigh.c</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * lib/route/neigh.c Neighbours</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00005"></a>00005 <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span>
<a name="l00006"></a>00006 <span class="comment"> * License as published by the Free Software Foundation version 2.1</span>
<a name="l00007"></a>00007 <span class="comment"> * of the License.</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch></span>
<a name="l00010"></a>00010 <span class="comment"> */</span>
<a name="l00011"></a>00011 <span class="comment"></span>
<a name="l00012"></a>00012 <span class="comment">/**</span>
<a name="l00013"></a>00013 <span class="comment"> * @ingroup rtnl</span>
<a name="l00014"></a>00014 <span class="comment"> * @defgroup neigh Neighbours</span>
<a name="l00015"></a>00015 <span class="comment"> * @brief</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * The neighbour table establishes bindings between protocol addresses and</span>
<a name="l00018"></a>00018 <span class="comment"> * link layer addresses for hosts sharing the same physical link. This</span>
<a name="l00019"></a>00019 <span class="comment"> * module allows you to access and manipulate the content of these tables.</span>
<a name="l00020"></a>00020 <span class="comment"> *</span>
<a name="l00021"></a>00021 <span class="comment"> * @par Neighbour States</span>
<a name="l00022"></a>00022 <span class="comment"> * @code</span>
<a name="l00023"></a>00023 <span class="comment"> * NUD_INCOMPLETE</span>
<a name="l00024"></a>00024 <span class="comment"> * NUD_REACHABLE</span>
<a name="l00025"></a>00025 <span class="comment"> * NUD_STALE</span>
<a name="l00026"></a>00026 <span class="comment"> * NUD_DELAY</span>
<a name="l00027"></a>00027 <span class="comment"> * NUD_PROBE</span>
<a name="l00028"></a>00028 <span class="comment"> * NUD_FAILED</span>
<a name="l00029"></a>00029 <span class="comment"> * NUD_NOARP</span>
<a name="l00030"></a>00030 <span class="comment"> * NUD_PERMANENT</span>
<a name="l00031"></a>00031 <span class="comment"> * @endcode</span>
<a name="l00032"></a>00032 <span class="comment"> *</span>
<a name="l00033"></a>00033 <span class="comment"> * @par Neighbour Flags</span>
<a name="l00034"></a>00034 <span class="comment"> * @code</span>
<a name="l00035"></a>00035 <span class="comment"> * NTF_PROXY</span>
<a name="l00036"></a>00036 <span class="comment"> * NTF_ROUTER</span>
<a name="l00037"></a>00037 <span class="comment"> * @endcode</span>
<a name="l00038"></a>00038 <span class="comment"> *</span>
<a name="l00039"></a>00039 <span class="comment"> * @par Neighbour Identification</span>
<a name="l00040"></a>00040 <span class="comment"> * A neighbour is uniquely identified by the attributes listed below, whenever</span>
<a name="l00041"></a>00041 <span class="comment"> * you refer to an existing neighbour all of the attributes must be set.</span>
<a name="l00042"></a>00042 <span class="comment"> * Neighbours from caches automatically have all required attributes set.</span>
<a name="l00043"></a>00043 <span class="comment"> * - interface index (rtnl_neigh_set_ifindex())</span>
<a name="l00044"></a>00044 <span class="comment"> * - destination address (rtnl_neigh_set_dst())</span>
<a name="l00045"></a>00045 <span class="comment"> *</span>
<a name="l00046"></a>00046 <span class="comment"> * @par Changeable Attributes</span>
<a name="l00047"></a>00047 <span class="comment"> * \anchor neigh_changeable</span>
<a name="l00048"></a>00048 <span class="comment"> * - state (rtnl_neigh_set_state())</span>
<a name="l00049"></a>00049 <span class="comment"> * - link layer address (rtnl_neigh_set_lladdr())</span>
<a name="l00050"></a>00050 <span class="comment"> *</span>
<a name="l00051"></a>00051 <span class="comment"> * @par Required Caches for Dumping</span>
<a name="l00052"></a>00052 <span class="comment"> * In order to dump neighbour attributes you must provide the following</span>
<a name="l00053"></a>00053 <span class="comment"> * caches via nl_cache_provide()</span>
<a name="l00054"></a>00054 <span class="comment"> * - link cache holding all links</span>
<a name="l00055"></a>00055 <span class="comment"> *</span>
<a name="l00056"></a>00056 <span class="comment"> * @par TODO</span>
<a name="l00057"></a>00057 <span class="comment"> * - Document proxy settings</span>
<a name="l00058"></a>00058 <span class="comment"> * - Document states and their influence</span>
<a name="l00059"></a>00059 <span class="comment"> *</span>
<a name="l00060"></a>00060 <span class="comment"> * @par 1) Retrieving information about configured neighbours</span>
<a name="l00061"></a>00061 <span class="comment"> * @code</span>
<a name="l00062"></a>00062 <span class="comment"> * // The first step is to retrieve a list of all available neighbour within</span>
<a name="l00063"></a>00063 <span class="comment"> * // the kernel and put them into a cache.</span>
<a name="l00064"></a>00064 <span class="comment"> * struct nl_cache *cache = rtnl_neigh_alloc_cache(handle);</span>
<a name="l00065"></a>00065 <span class="comment"> *</span>
<a name="l00066"></a>00066 <span class="comment"> * // Neighbours can then be looked up by the interface and destination</span>
<a name="l00067"></a>00067 <span class="comment"> * // address:</span>
<a name="l00068"></a>00068 <span class="comment"> * struct rtnl_neigh *neigh = rtnl_neigh_get(cache, ifindex, dst_addr);</span>
<a name="l00069"></a>00069 <span class="comment"> * </span>
<a name="l00070"></a>00070 <span class="comment"> * // After successful usage, the object must be given back to the cache</span>
<a name="l00071"></a>00071 <span class="comment"> * rtnl_neigh_put(neigh);</span>
<a name="l00072"></a>00072 <span class="comment"> * @endcode</span>
<a name="l00073"></a>00073 <span class="comment"> *</span>
<a name="l00074"></a>00074 <span class="comment"> * @par 2) Adding new neighbours</span>
<a name="l00075"></a>00075 <span class="comment"> * @code</span>
<a name="l00076"></a>00076 <span class="comment"> * // Allocate an empty neighbour handle to be filled out with the attributes</span>
<a name="l00077"></a>00077 <span class="comment"> * // of the new neighbour.</span>
<a name="l00078"></a>00078 <span class="comment"> * struct rtnl_neigh *neigh = rtnl_neigh_alloc();</span>
<a name="l00079"></a>00079 <span class="comment"> *</span>
<a name="l00080"></a>00080 <span class="comment"> * // Fill out the attributes of the new neighbour</span>
<a name="l00081"></a>00081 <span class="comment"> * rtnl_neigh_set_ifindex(neigh, ifindex);</span>
<a name="l00082"></a>00082 <span class="comment"> * rtnl_neigh_set_dst(neigh, dst_addr);</span>
<a name="l00083"></a>00083 <span class="comment"> * rtnl_neigh_set_state(neigh, rtnl_neigh_str2state("permanent"));</span>
<a name="l00084"></a>00084 <span class="comment"> *</span>
<a name="l00085"></a>00085 <span class="comment"> * // Build the netlink message and send it to the kernel, the operation will</span>
<a name="l00086"></a>00086 <span class="comment"> * // block until the operation has been completed. Alternatively the required</span>
<a name="l00087"></a>00087 <span class="comment"> * // netlink message can be built using rtnl_neigh_build_add_request()</span>
<a name="l00088"></a>00088 <span class="comment"> * // to be sent out using nl_send_auto_complete().</span>
<a name="l00089"></a>00089 <span class="comment"> * rtnl_neigh_add(nl_handle, neigh, NLM_F_REPLACE);</span>
<a name="l00090"></a>00090 <span class="comment"> *</span>
<a name="l00091"></a>00091 <span class="comment"> * // Free the memory</span>
<a name="l00092"></a>00092 <span class="comment"> * rtnl_neigh_put(neigh);</span>
<a name="l00093"></a>00093 <span class="comment"> * @endcode</span>
<a name="l00094"></a>00094 <span class="comment"> *</span>
<a name="l00095"></a>00095 <span class="comment"> * @par 3) Deleting an existing neighbour</span>
<a name="l00096"></a>00096 <span class="comment"> * @code</span>
<a name="l00097"></a>00097 <span class="comment"> * // Allocate an empty neighbour object to be filled out with the attributes</span>
<a name="l00098"></a>00098 <span class="comment"> * // matching the neighbour to be deleted. Alternatively a fully equipped</span>
<a name="l00099"></a>00099 <span class="comment"> * // neighbour object out of a cache can be used instead.</span>
<a name="l00100"></a>00100 <span class="comment"> * struct rtnl_neigh *neigh = rtnl_neigh_alloc();</span>
<a name="l00101"></a>00101 <span class="comment"> *</span>
<a name="l00102"></a>00102 <span class="comment"> * // Neighbours are uniquely identified by their interface index and</span>
<a name="l00103"></a>00103 <span class="comment"> * // destination address, you may fill out other attributes but they</span>
<a name="l00104"></a>00104 <span class="comment"> * // will have no influence.</span>
<a name="l00105"></a>00105 <span class="comment"> * rtnl_neigh_set_ifindex(neigh, ifindex);</span>
<a name="l00106"></a>00106 <span class="comment"> * rtnl_neigh_set_dst(neigh, dst_addr);</span>
<a name="l00107"></a>00107 <span class="comment"> *</span>
<a name="l00108"></a>00108 <span class="comment"> * // Build the netlink message and send it to the kernel, the operation will</span>
<a name="l00109"></a>00109 <span class="comment"> * // block until the operation has been completed. Alternatively the required</span>
<a name="l00110"></a>00110 <span class="comment"> * // netlink message can be built using rtnl_neigh_build_delete_request()</span>
<a name="l00111"></a>00111 <span class="comment"> * // to be sent out using nl_send_auto_complete().</span>
<a name="l00112"></a>00112 <span class="comment"> * rtnl_neigh_delete(handle, neigh, 0);</span>
<a name="l00113"></a>00113 <span class="comment"> *</span>
<a name="l00114"></a>00114 <span class="comment"> * // Free the memory</span>
<a name="l00115"></a>00115 <span class="comment"> * rtnl_neigh_put(neigh);</span>
<a name="l00116"></a>00116 <span class="comment"> * @endcode</span>
<a name="l00117"></a>00117 <span class="comment"> *</span>
<a name="l00118"></a>00118 <span class="comment"> * @par 4) Changing neighbour attributes</span>
<a name="l00119"></a>00119 <span class="comment"> * @code</span>
<a name="l00120"></a>00120 <span class="comment"> * // Allocate an empty neighbour object to be filled out with the attributes</span>
<a name="l00121"></a>00121 <span class="comment"> * // matching the neighbour to be changed and the new parameters. Alternatively</span>
<a name="l00122"></a>00122 <span class="comment"> * // a fully equipped modified neighbour object out of a cache can be used.</span>
<a name="l00123"></a>00123 <span class="comment"> * struct rtnl_neigh *neigh = rtnl_neigh_alloc();</span>
<a name="l00124"></a>00124 <span class="comment"> *</span>
<a name="l00125"></a>00125 <span class="comment"> * // Identify the neighbour to be changed by its interface index and</span>
<a name="l00126"></a>00126 <span class="comment"> * // destination address</span>
<a name="l00127"></a>00127 <span class="comment"> * rtnl_neigh_set_ifindex(neigh, ifindex);</span>
<a name="l00128"></a>00128 <span class="comment"> * rtnl_neigh_set_dst(neigh, dst_addr);</span>
<a name="l00129"></a>00129 <span class="comment"> *</span>
<a name="l00130"></a>00130 <span class="comment"> * // The link layer address may be modified, if so it is wise to change</span>
<a name="l00131"></a>00131 <span class="comment"> * // its state to "permanent" in order to avoid having it overwritten.</span>
<a name="l00132"></a>00132 <span class="comment"> * rtnl_neigh_set_lladdr(neigh, lladdr);</span>
<a name="l00133"></a>00133 <span class="comment"> *</span>
<a name="l00134"></a>00134 <span class="comment"> * // Secondly the state can be modified allowing normal neighbours to be</span>
<a name="l00135"></a>00135 <span class="comment"> * // converted into permanent entries or to manually confirm a neighbour.</span>
<a name="l00136"></a>00136 <span class="comment"> * rtnl_neigh_set_state(neigh, state);</span>
<a name="l00137"></a>00137 <span class="comment"> *</span>
<a name="l00138"></a>00138 <span class="comment"> * // Build the netlink message and send it to the kernel, the operation will</span>
<a name="l00139"></a>00139 <span class="comment"> * // block until the operation has been completed. Alternatively the required</span>
<a name="l00140"></a>00140 <span class="comment"> * // netlink message can be built using rtnl_neigh_build_change_request()</span>
<a name="l00141"></a>00141 <span class="comment"> * // to be sent out using nl_send_auto_complete().</span>
<a name="l00142"></a>00142 <span class="comment"> * rtnl_neigh_change(handle, neigh, 0);</span>
<a name="l00143"></a>00143 <span class="comment"> *</span>
<a name="l00144"></a>00144 <span class="comment"> * // Free the memory</span>
<a name="l00145"></a>00145 <span class="comment"> * rtnl_neigh_put(neigh);</span>
<a name="l00146"></a>00146 <span class="comment"> * @endcode</span>
<a name="l00147"></a>00147 <span class="comment"> * @{</span>
<a name="l00148"></a>00148 <span class="comment"> */</span>
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="preprocessor">#include <netlink-local.h></span>
<a name="l00151"></a>00151 <span class="preprocessor">#include <netlink/netlink.h></span>
<a name="l00152"></a>00152 <span class="preprocessor">#include <netlink/utils.h></span>
<a name="l00153"></a>00153 <span class="preprocessor">#include <netlink/route/rtnl.h></span>
<a name="l00154"></a>00154 <span class="preprocessor">#include <netlink/route/neighbour.h></span>
<a name="l00155"></a>00155 <span class="preprocessor">#include <netlink/route/link.h></span>
<a name="l00156"></a>00156 <span class="comment"></span>
<a name="l00157"></a>00157 <span class="comment">/** @cond SKIP */</span>
<a name="l00158"></a>00158 <span class="preprocessor">#define NEIGH_ATTR_FLAGS 0x01</span>
<a name="l00159"></a>00159 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_STATE 0x02</span>
<a name="l00160"></a>00160 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_LLADDR 0x04</span>
<a name="l00161"></a>00161 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_DST 0x08</span>
<a name="l00162"></a>00162 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_CACHEINFO 0x10</span>
<a name="l00163"></a>00163 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_IFINDEX 0x20</span>
<a name="l00164"></a>00164 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_FAMILY 0x40</span>
<a name="l00165"></a>00165 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_TYPE 0x80</span>
<a name="l00166"></a>00166 <span class="preprocessor"></span><span class="preprocessor">#define NEIGH_ATTR_PROBES 0x100</span>
<a name="l00167"></a>00167 <span class="preprocessor"></span>
<a name="l00168"></a>00168 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnl__cache__ops.html" title="Cache Operations.">nl_cache_ops</a> rtnl_neigh_ops;
<a name="l00169"></a>00169 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnl__object__ops.html" title="Object Operations.">nl_object_ops</a> neigh_obj_ops;<span class="comment"></span>
<a name="l00170"></a>00170 <span class="comment">/** @endcond */</span>
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="keyword">static</span> <span class="keywordtype">void</span> neigh_free_data(<span class="keyword">struct</span> nl_object *c)
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174 <span class="keyword">struct </span>rtnl_neigh *neigh = nl_object_priv(c);
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keywordflow">if</span> (!neigh)
<a name="l00177"></a>00177 <span class="keywordflow">return</span>;
<a name="l00178"></a>00178
<a name="l00179"></a>00179 nl_addr_put(neigh->n_lladdr);
<a name="l00180"></a>00180 nl_addr_put(neigh->n_dst);
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_clone(<span class="keyword">struct</span> nl_object *_dst, <span class="keyword">struct</span> nl_object *_src)
<a name="l00184"></a>00184 {
<a name="l00185"></a>00185 <span class="keyword">struct </span>rtnl_neigh *dst = nl_object_priv(_dst);
<a name="l00186"></a>00186 <span class="keyword">struct </span>rtnl_neigh *src = nl_object_priv(_src);
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordflow">if</span> (src->n_lladdr)
<a name="l00189"></a>00189 <span class="keywordflow">if</span> (!(dst->n_lladdr = <a class="code" href="group__addr.html#ga40b37a1ccec7acf84d868e588e516cba" title="Clone existing abstract address object.">nl_addr_clone</a>(src->n_lladdr)))
<a name="l00190"></a>00190 <span class="keywordflow">goto</span> errout;
<a name="l00191"></a>00191
<a name="l00192"></a>00192 <span class="keywordflow">if</span> (src->n_dst)
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (!(dst->n_dst = <a class="code" href="group__addr.html#ga40b37a1ccec7acf84d868e588e516cba" title="Clone existing abstract address object.">nl_addr_clone</a>(src->n_dst)))
<a name="l00194"></a>00194 <span class="keywordflow">goto</span> errout;
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="keywordflow">return</span> 0;
<a name="l00197"></a>00197 errout:
<a name="l00198"></a>00198 <span class="keywordflow">return</span> nl_get_errno();
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_compare(<span class="keyword">struct</span> nl_object *_a, <span class="keyword">struct</span> nl_object *_b,
<a name="l00202"></a>00202 uint32_t attrs, <span class="keywordtype">int</span> flags)
<a name="l00203"></a>00203 {
<a name="l00204"></a>00204 <span class="keyword">struct </span>rtnl_neigh *a = (<span class="keyword">struct </span>rtnl_neigh *) _a;
<a name="l00205"></a>00205 <span class="keyword">struct </span>rtnl_neigh *b = (<span class="keyword">struct </span>rtnl_neigh *) _b;
<a name="l00206"></a>00206 <span class="keywordtype">int</span> diff = 0;
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="preprocessor">#define NEIGH_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, NEIGH_ATTR_##ATTR, a, b, EXPR)</span>
<a name="l00209"></a>00209 <span class="preprocessor"></span>
<a name="l00210"></a>00210 diff |= NEIGH_DIFF(IFINDEX, a->n_ifindex != b->n_ifindex);
<a name="l00211"></a>00211 diff |= NEIGH_DIFF(FAMILY, a->n_family != b->n_family);
<a name="l00212"></a>00212 diff |= NEIGH_DIFF(TYPE, a->n_type != b->n_type);
<a name="l00213"></a>00213 diff |= NEIGH_DIFF(LLADDR, <a class="code" href="group__addr.html#ga3b85d180a4f6d2df86be1dc8798a7d9a" title="Compares two abstract address objects.">nl_addr_cmp</a>(a->n_lladdr, b->n_lladdr));
<a name="l00214"></a>00214 diff |= NEIGH_DIFF(DST, <a class="code" href="group__addr.html#ga3b85d180a4f6d2df86be1dc8798a7d9a" title="Compares two abstract address objects.">nl_addr_cmp</a>(a->n_dst, b->n_dst));
<a name="l00215"></a>00215
<a name="l00216"></a>00216 <span class="keywordflow">if</span> (flags & LOOSE_FLAG_COMPARISON) {
<a name="l00217"></a>00217 diff |= NEIGH_DIFF(STATE,
<a name="l00218"></a>00218 (a->n_state ^ b->n_state) & b->n_state_mask);
<a name="l00219"></a>00219 diff |= NEIGH_DIFF(FLAGS,
<a name="l00220"></a>00220 (a->n_flags ^ b->n_flags) & b->n_flag_mask);
<a name="l00221"></a>00221 } <span class="keywordflow">else</span> {
<a name="l00222"></a>00222 diff |= NEIGH_DIFF(STATE, a->n_state != b->n_state);
<a name="l00223"></a>00223 diff |= NEIGH_DIFF(FLAGS, a->n_flags != b->n_flags);
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="preprocessor">#undef NEIGH_DIFF</span>
<a name="l00227"></a>00227 <span class="preprocessor"></span>
<a name="l00228"></a>00228 <span class="keywordflow">return</span> diff;
<a name="l00229"></a>00229 }
<a name="l00230"></a>00230
<a name="l00231"></a>00231 <span class="keyword">static</span> <span class="keyword">struct </span>trans_tbl neigh_attrs[] = {
<a name="l00232"></a>00232 __ADD(NEIGH_ATTR_FLAGS, flags)
<a name="l00233"></a>00233 __ADD(NEIGH_ATTR_STATE, state)
<a name="l00234"></a>00234 __ADD(NEIGH_ATTR_LLADDR, lladdr)
<a name="l00235"></a>00235 __ADD(NEIGH_ATTR_DST, dst)
<a name="l00236"></a>00236 __ADD(NEIGH_ATTR_CACHEINFO, cacheinfo)
<a name="l00237"></a>00237 __ADD(NEIGH_ATTR_IFINDEX, ifindex)
<a name="l00238"></a>00238 __ADD(NEIGH_ATTR_FAMILY, family)
<a name="l00239"></a>00239 __ADD(NEIGH_ATTR_TYPE, type)
<a name="l00240"></a>00240 __ADD(NEIGH_ATTR_PROBES, probes)
<a name="l00241"></a>00241 };
<a name="l00242"></a>00242
<a name="l00243"></a>00243 static <span class="keywordtype">char</span> *neigh_attrs2str(<span class="keywordtype">int</span> attrs, <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> len)
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 <span class="keywordflow">return</span> __flags2str(attrs, buf, len, neigh_attrs,
<a name="l00246"></a>00246 ARRAY_SIZE(neigh_attrs));
<a name="l00247"></a>00247 }
<a name="l00248"></a>00248
<a name="l00249"></a>00249 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnla__policy.html" title="attribute validation policy">nla_policy</a> neigh_policy[NDA_MAX+1] = {
<a name="l00250"></a>00250 [NDA_CACHEINFO] = { .<a class="code" href="structnla__policy.html#a70310d3332cb82c390754bd70b1cb7dd" title="Minimal length of payload required to be available.">minlen</a> = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>nda_cacheinfo) },
<a name="l00251"></a>00251 [NDA_PROBES] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00252"></a>00252 };
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_msg_parser(<span class="keyword">struct</span> <a class="code" href="structnl__cache__ops.html" title="Cache Operations.">nl_cache_ops</a> *ops, <span class="keyword">struct</span> <a class="code" href="structsockaddr__nl.html" title="Netlink socket address.">sockaddr_nl</a> *who,
<a name="l00255"></a>00255 <span class="keyword">struct</span> <a class="code" href="structnlmsghdr.html" title="Netlink message header.">nlmsghdr</a> *n, <span class="keyword">struct</span> <a class="code" href="structnl__parser__param.html">nl_parser_param</a> *pp)
<a name="l00256"></a>00256 {
<a name="l00257"></a>00257 <span class="keyword">struct </span>rtnl_neigh *neigh;
<a name="l00258"></a>00258 <span class="keyword">struct </span>nlattr *tb[NDA_MAX + 1];
<a name="l00259"></a>00259 <span class="keyword">struct </span>ndmsg *nm;
<a name="l00260"></a>00260 <span class="keywordtype">int</span> err;
<a name="l00261"></a>00261
<a name="l00262"></a>00262 neigh = rtnl_neigh_alloc();
<a name="l00263"></a>00263 <span class="keywordflow">if</span> (!neigh) {
<a name="l00264"></a>00264 err = nl_errno(ENOMEM);
<a name="l00265"></a>00265 <span class="keywordflow">goto</span> errout;
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267
<a name="l00268"></a>00268 neigh->ce_msgtype = n-><a class="code" href="structnlmsghdr.html#a7232c4e6cb513010e64887b7eebf8823" title="Message type (content type)">nlmsg_type</a>;
<a name="l00269"></a>00269 nm = <a class="code" href="group__msg.html#gae44a904bb40c8b5f5ff31539c21cfa5a" title="head of message payload">nlmsg_data</a>(n);
<a name="l00270"></a>00270
<a name="l00271"></a>00271 err = <a class="code" href="group__msg.html#ga2671eefe95c3e44dec8ddab51ae57593" title="parse attributes of a netlink message">nlmsg_parse</a>(n, <span class="keyword">sizeof</span>(*nm), tb, NDA_MAX, neigh_policy);
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (err < 0)
<a name="l00273"></a>00273 <span class="keywordflow">goto</span> errout;
<a name="l00274"></a>00274
<a name="l00275"></a>00275 neigh->n_family = nm->ndm_family;
<a name="l00276"></a>00276 neigh->n_ifindex = nm->ndm_ifindex;
<a name="l00277"></a>00277 neigh->n_state = nm->ndm_state;
<a name="l00278"></a>00278 neigh->n_flags = nm->ndm_flags;
<a name="l00279"></a>00279 neigh->n_type = nm->ndm_type;
<a name="l00280"></a>00280
<a name="l00281"></a>00281 neigh->ce_mask |= (NEIGH_ATTR_FAMILY | NEIGH_ATTR_IFINDEX |
<a name="l00282"></a>00282 NEIGH_ATTR_STATE | NEIGH_ATTR_FLAGS |
<a name="l00283"></a>00283 NEIGH_ATTR_TYPE);
<a name="l00284"></a>00284
<a name="l00285"></a>00285 <span class="keywordflow">if</span> (tb[NDA_LLADDR]) {
<a name="l00286"></a>00286 neigh->n_lladdr = <a class="code" href="group__attr.html#ga98a5ac1eefea9266cf46c91b9a9867f3" title="Return payload of address attribute.">nla_get_addr</a>(tb[NDA_LLADDR], AF_UNSPEC);
<a name="l00287"></a>00287 <span class="keywordflow">if</span> (!neigh->n_lladdr)
<a name="l00288"></a>00288 <span class="keywordflow">goto</span> errout;
<a name="l00289"></a>00289 nl_addr_set_family(neigh->n_lladdr,
<a name="l00290"></a>00290 <a class="code" href="group__addr.html#gaff2e98f656a046a29c561db403a8ec82" title="Guess address family of an abstract address object based on address size.">nl_addr_guess_family</a>(neigh->n_lladdr));
<a name="l00291"></a>00291 neigh->ce_mask |= NEIGH_ATTR_LLADDR;
<a name="l00292"></a>00292 }
<a name="l00293"></a>00293
<a name="l00294"></a>00294 <span class="keywordflow">if</span> (tb[NDA_DST]) {
<a name="l00295"></a>00295 neigh->n_dst = <a class="code" href="group__attr.html#ga98a5ac1eefea9266cf46c91b9a9867f3" title="Return payload of address attribute.">nla_get_addr</a>(tb[NDA_DST], neigh->n_family);
<a name="l00296"></a>00296 <span class="keywordflow">if</span> (!neigh->n_dst)
<a name="l00297"></a>00297 <span class="keywordflow">goto</span> errout;
<a name="l00298"></a>00298 neigh->ce_mask |= NEIGH_ATTR_DST;
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300
<a name="l00301"></a>00301 <span class="keywordflow">if</span> (tb[NDA_CACHEINFO]) {
<a name="l00302"></a>00302 <span class="keyword">struct </span>nda_cacheinfo *ci = <a class="code" href="group__attr.html#gaf39d6bbd2be1fc2de30b6b7d079a5fce" title="head of payload">nla_data</a>(tb[NDA_CACHEINFO]);
<a name="l00303"></a>00303
<a name="l00304"></a>00304 neigh->n_cacheinfo.nci_confirmed = ci->ndm_confirmed;
<a name="l00305"></a>00305 neigh->n_cacheinfo.nci_used = ci->ndm_used;
<a name="l00306"></a>00306 neigh->n_cacheinfo.nci_updated = ci->ndm_updated;
<a name="l00307"></a>00307 neigh->n_cacheinfo.nci_refcnt = ci->ndm_refcnt;
<a name="l00308"></a>00308
<a name="l00309"></a>00309 neigh->ce_mask |= NEIGH_ATTR_CACHEINFO;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="keywordflow">if</span> (tb[NDA_PROBES]) {
<a name="l00313"></a>00313 neigh->n_probes = <a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(tb[NDA_PROBES]);
<a name="l00314"></a>00314 neigh->ce_mask |= NEIGH_ATTR_PROBES;
<a name="l00315"></a>00315 }
<a name="l00316"></a>00316
<a name="l00317"></a>00317 err = pp->pp_cb((<span class="keyword">struct</span> nl_object *) neigh, pp);
<a name="l00318"></a>00318 <span class="keywordflow">if</span> (err < 0)
<a name="l00319"></a>00319 <span class="keywordflow">goto</span> errout;
<a name="l00320"></a>00320
<a name="l00321"></a>00321 err = P_ACCEPT;
<a name="l00322"></a>00322
<a name="l00323"></a>00323 errout:
<a name="l00324"></a>00324 rtnl_neigh_put(neigh);
<a name="l00325"></a>00325 <span class="keywordflow">return</span> err;
<a name="l00326"></a>00326 }
<a name="l00327"></a>00327
<a name="l00328"></a>00328 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_request_update(<span class="keyword">struct</span> nl_cache *c, <span class="keyword">struct</span> nl_handle *h)
<a name="l00329"></a>00329 {
<a name="l00330"></a>00330 <span class="keywordflow">return</span> <a class="code" href="group__rtnl.html#ga1fcd1a88d7f810c50849f13d97b5fe10" title="Send routing netlink request message.">nl_rtgen_request</a>(h, RTM_GETNEIGH, AF_UNSPEC, <a class="code" href="group__msg.html#ga8d4fb2458c013decb6673f41c52c07b1" title="Dump all entries.">NLM_F_DUMP</a>);
<a name="l00331"></a>00331 }
<a name="l00332"></a>00332
<a name="l00333"></a>00333
<a name="l00334"></a>00334 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_dump_brief(<span class="keyword">struct</span> nl_object *a, <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p)
<a name="l00335"></a>00335 {
<a name="l00336"></a>00336 <span class="keywordtype">char</span> dst[INET6_ADDRSTRLEN+5], lladdr[INET6_ADDRSTRLEN+5];
<a name="l00337"></a>00337 <span class="keyword">struct </span>rtnl_neigh *n = (<span class="keyword">struct </span>rtnl_neigh *) a;
<a name="l00338"></a>00338 <span class="keyword">struct </span>nl_cache *link_cache;
<a name="l00339"></a>00339 <span class="keywordtype">char</span> state[128], flags[64];
<a name="l00340"></a>00340
<a name="l00341"></a>00341 link_cache = <a class="code" href="group__cache__mngt.html#gad06c0755c030845c3c90ed490108ea5d" title="Demand the use of a global cache.">nl_cache_mngt_require</a>(<span class="stringliteral">"route/link"</span>);
<a name="l00342"></a>00342
<a name="l00343"></a>00343 dp_dump(p, <span class="stringliteral">"%s "</span>, <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(n->n_dst, dst, <span class="keyword">sizeof</span>(dst)));
<a name="l00344"></a>00344
<a name="l00345"></a>00345 <span class="keywordflow">if</span> (link_cache)
<a name="l00346"></a>00346 dp_dump(p, <span class="stringliteral">"dev %s "</span>,
<a name="l00347"></a>00347 <a class="code" href="group__link.html#ga66328cb096fb4d21499775e75089109d" title="Translate an interface index to the corresponding link name.">rtnl_link_i2name</a>(link_cache, n->n_ifindex,
<a name="l00348"></a>00348 state, <span class="keyword">sizeof</span>(state)));
<a name="l00349"></a>00349 <span class="keywordflow">else</span>
<a name="l00350"></a>00350 dp_dump(p, <span class="stringliteral">"dev %d "</span>, n->n_ifindex);
<a name="l00351"></a>00351
<a name="l00352"></a>00352 <span class="keywordflow">if</span> (n->ce_mask & NEIGH_ATTR_LLADDR)
<a name="l00353"></a>00353 dp_dump(p, <span class="stringliteral">"lladdr %s "</span>,
<a name="l00354"></a>00354 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(n->n_lladdr, lladdr, <span class="keyword">sizeof</span>(lladdr)));
<a name="l00355"></a>00355
<a name="l00356"></a>00356 rtnl_neigh_state2str(n->n_state, state, <span class="keyword">sizeof</span>(state));
<a name="l00357"></a>00357 rtnl_neigh_flags2str(n->n_flags, flags, <span class="keyword">sizeof</span>(flags));
<a name="l00358"></a>00358
<a name="l00359"></a>00359 <span class="keywordflow">if</span> (state[0])
<a name="l00360"></a>00360 dp_dump(p, <span class="stringliteral">"<%s"</span>, state);
<a name="l00361"></a>00361 <span class="keywordflow">if</span> (flags[0])
<a name="l00362"></a>00362 dp_dump(p, <span class="stringliteral">"%s%s"</span>, state[0] ? <span class="stringliteral">","</span> : <span class="stringliteral">"<"</span>, flags);
<a name="l00363"></a>00363 <span class="keywordflow">if</span> (state[0] || flags[0])
<a name="l00364"></a>00364 dp_dump(p, <span class="stringliteral">">"</span>);
<a name="l00365"></a>00365 dp_dump(p, <span class="stringliteral">"\n"</span>);
<a name="l00366"></a>00366
<a name="l00367"></a>00367 <span class="keywordflow">return</span> 1;
<a name="l00368"></a>00368 }
<a name="l00369"></a>00369
<a name="l00370"></a>00370 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_dump_full(<span class="keyword">struct</span> nl_object *a, <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p)
<a name="l00371"></a>00371 {
<a name="l00372"></a>00372 <span class="keywordtype">char</span> rtn_type[32];
<a name="l00373"></a>00373 <span class="keyword">struct </span>rtnl_neigh *n = (<span class="keyword">struct </span>rtnl_neigh *) a;
<a name="l00374"></a>00374 <span class="keywordtype">int</span> hz = <a class="code" href="group__utils.html#ga9aa52772ddedc62e60f5ecfc9a66ea89" title="Return the value of HZ.">nl_get_hz</a>();
<a name="l00375"></a>00375
<a name="l00376"></a>00376 <span class="keywordtype">int</span> line = neigh_dump_brief(a, p);
<a name="l00377"></a>00377
<a name="l00378"></a>00378 dp_dump_line(p, line++, <span class="stringliteral">" refcnt %u type %s confirmed %u used "</span>
<a name="l00379"></a>00379 <span class="stringliteral">"%u updated %u\n"</span>,
<a name="l00380"></a>00380 n->n_cacheinfo.nci_refcnt,
<a name="l00381"></a>00381 nl_rtntype2str(n->n_type, rtn_type, <span class="keyword">sizeof</span>(rtn_type)),
<a name="l00382"></a>00382 n->n_cacheinfo.nci_confirmed/hz,
<a name="l00383"></a>00383 n->n_cacheinfo.nci_used/hz, n->n_cacheinfo.nci_updated/hz);
<a name="l00384"></a>00384
<a name="l00385"></a>00385 <span class="keywordflow">return</span> line;
<a name="l00386"></a>00386 }
<a name="l00387"></a>00387
<a name="l00388"></a>00388 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_dump_stats(<span class="keyword">struct</span> nl_object *a, <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p)
<a name="l00389"></a>00389 {
<a name="l00390"></a>00390 <span class="keywordflow">return</span> neigh_dump_full(a, p);
<a name="l00391"></a>00391 }
<a name="l00392"></a>00392
<a name="l00393"></a>00393 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_dump_xml(<span class="keyword">struct</span> nl_object *obj, <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p)
<a name="l00394"></a>00394 {
<a name="l00395"></a>00395 <span class="keyword">struct </span>rtnl_neigh *neigh = (<span class="keyword">struct </span>rtnl_neigh *) obj;
<a name="l00396"></a>00396 <span class="keywordtype">char</span> buf[128];
<a name="l00397"></a>00397 <span class="keywordtype">int</span> line = 0;
<a name="l00398"></a>00398
<a name="l00399"></a>00399 dp_dump_line(p, line++, <span class="stringliteral">"<neighbour>\n"</span>);
<a name="l00400"></a>00400 dp_dump_line(p, line++, <span class="stringliteral">" <family>%s</family>\n"</span>,
<a name="l00401"></a>00401 nl_af2str(neigh->n_family, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00402"></a>00402
<a name="l00403"></a>00403 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_LLADDR)
<a name="l00404"></a>00404 dp_dump_line(p, line++, <span class="stringliteral">" <lladdr>%s</lladdr>\n"</span>,
<a name="l00405"></a>00405 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(neigh->n_lladdr, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00406"></a>00406
<a name="l00407"></a>00407 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_DST)
<a name="l00408"></a>00408 dp_dump_line(p, line++, <span class="stringliteral">" <dst>%s</dst>\n"</span>,
<a name="l00409"></a>00409 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(neigh->n_dst, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00410"></a>00410
<a name="l00411"></a>00411 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_IFINDEX) {
<a name="l00412"></a>00412 <span class="keyword">struct </span>nl_cache *link_cache;
<a name="l00413"></a>00413
<a name="l00414"></a>00414 link_cache = <a class="code" href="group__cache__mngt.html#gad06c0755c030845c3c90ed490108ea5d" title="Demand the use of a global cache.">nl_cache_mngt_require</a>(<span class="stringliteral">"route/link"</span>);
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="keywordflow">if</span> (link_cache)
<a name="l00417"></a>00417 dp_dump_line(p, line++, <span class="stringliteral">" <device>%s</device>\n"</span>,
<a name="l00418"></a>00418 <a class="code" href="group__link.html#ga66328cb096fb4d21499775e75089109d" title="Translate an interface index to the corresponding link name.">rtnl_link_i2name</a>(link_cache,
<a name="l00419"></a>00419 neigh->n_ifindex,
<a name="l00420"></a>00420 buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00421"></a>00421 <span class="keywordflow">else</span>
<a name="l00422"></a>00422 dp_dump_line(p, line++, <span class="stringliteral">" <device>%u</device>\n"</span>,
<a name="l00423"></a>00423 neigh->n_ifindex);
<a name="l00424"></a>00424 }
<a name="l00425"></a>00425
<a name="l00426"></a>00426 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_PROBES)
<a name="l00427"></a>00427 dp_dump_line(p, line++, <span class="stringliteral">" <probes>%u</probes>\n"</span>,
<a name="l00428"></a>00428 neigh->n_probes);
<a name="l00429"></a>00429
<a name="l00430"></a>00430 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_TYPE)
<a name="l00431"></a>00431 dp_dump_line(p, line++, <span class="stringliteral">" <type>%s</type>\n"</span>,
<a name="l00432"></a>00432 nl_rtntype2str(neigh->n_type, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00433"></a>00433
<a name="l00434"></a>00434 rtnl_neigh_flags2str(neigh->n_flags, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00435"></a>00435 <span class="keywordflow">if</span> (buf[0])
<a name="l00436"></a>00436 dp_dump_line(p, line++, <span class="stringliteral">" <flags>%s</flags>\n"</span>, buf);
<a name="l00437"></a>00437
<a name="l00438"></a>00438 rtnl_neigh_state2str(neigh->n_state, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00439"></a>00439 <span class="keywordflow">if</span> (buf[0])
<a name="l00440"></a>00440 dp_dump_line(p, line++, <span class="stringliteral">" <state>%s</state>\n"</span>, buf);
<a name="l00441"></a>00441
<a name="l00442"></a>00442 dp_dump_line(p, line++, <span class="stringliteral">"</neighbour>\n"</span>);
<a name="l00443"></a>00443
<a name="l00444"></a>00444 <span class="preprocessor">#if 0</span>
<a name="l00445"></a>00445 <span class="preprocessor"></span> <span class="keyword">struct </span>rtnl_ncacheinfo n_cacheinfo;
<a name="l00446"></a>00446 <span class="preprocessor">#endif</span>
<a name="l00447"></a>00447 <span class="preprocessor"></span>
<a name="l00448"></a>00448 <span class="keywordflow">return</span> line;
<a name="l00449"></a>00449 }
<a name="l00450"></a>00450
<a name="l00451"></a>00451 <span class="keyword">static</span> <span class="keywordtype">int</span> neigh_dump_env(<span class="keyword">struct</span> nl_object *obj, <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p)
<a name="l00452"></a>00452 {
<a name="l00453"></a>00453 <span class="keyword">struct </span>rtnl_neigh *neigh = (<span class="keyword">struct </span>rtnl_neigh *) obj;
<a name="l00454"></a>00454 <span class="keywordtype">char</span> buf[128];
<a name="l00455"></a>00455 <span class="keywordtype">int</span> line = 0;
<a name="l00456"></a>00456
<a name="l00457"></a>00457 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_FAMILY=%s\n"</span>,
<a name="l00458"></a>00458 nl_af2str(neigh->n_family, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00459"></a>00459
<a name="l00460"></a>00460 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_LLADDR)
<a name="l00461"></a>00461 dp_dump_line(p, line++, <span class="stringliteral">"NEIGHT_LLADDR=%s\n"</span>,
<a name="l00462"></a>00462 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(neigh->n_lladdr, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00463"></a>00463
<a name="l00464"></a>00464 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_DST)
<a name="l00465"></a>00465 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_DST=%s\n"</span>,
<a name="l00466"></a>00466 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(neigh->n_dst, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00467"></a>00467
<a name="l00468"></a>00468 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_IFINDEX) {
<a name="l00469"></a>00469 <span class="keyword">struct </span>nl_cache *link_cache;
<a name="l00470"></a>00470
<a name="l00471"></a>00471 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_IFINDEX=%u\n"</span>,
<a name="l00472"></a>00472 neigh->n_ifindex);
<a name="l00473"></a>00473
<a name="l00474"></a>00474 link_cache = <a class="code" href="group__cache__mngt.html#gad06c0755c030845c3c90ed490108ea5d" title="Demand the use of a global cache.">nl_cache_mngt_require</a>(<span class="stringliteral">"route/link"</span>);
<a name="l00475"></a>00475 <span class="keywordflow">if</span> (link_cache)
<a name="l00476"></a>00476 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_IFNAME=%s\n"</span>,
<a name="l00477"></a>00477 <a class="code" href="group__link.html#ga66328cb096fb4d21499775e75089109d" title="Translate an interface index to the corresponding link name.">rtnl_link_i2name</a>(link_cache,
<a name="l00478"></a>00478 neigh->n_ifindex,
<a name="l00479"></a>00479 buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00480"></a>00480 }
<a name="l00481"></a>00481
<a name="l00482"></a>00482 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_PROBES)
<a name="l00483"></a>00483 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_PROBES=%u\n"</span>,
<a name="l00484"></a>00484 neigh->n_probes);
<a name="l00485"></a>00485
<a name="l00486"></a>00486 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_TYPE)
<a name="l00487"></a>00487 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_TYPE=%s\n"</span>,
<a name="l00488"></a>00488 nl_rtntype2str(neigh->n_type, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00489"></a>00489
<a name="l00490"></a>00490 rtnl_neigh_flags2str(neigh->n_flags, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00491"></a>00491 <span class="keywordflow">if</span> (buf[0])
<a name="l00492"></a>00492 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_FLAGS=%s\n"</span>, buf);
<a name="l00493"></a>00493
<a name="l00494"></a>00494 rtnl_neigh_state2str(neigh->n_state, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00495"></a>00495 <span class="keywordflow">if</span> (buf[0])
<a name="l00496"></a>00496 dp_dump_line(p, line++, <span class="stringliteral">"NEIGH_STATE=%s\n"</span>, buf);
<a name="l00497"></a>00497
<a name="l00498"></a>00498 <span class="keywordflow">return</span> line;
<a name="l00499"></a>00499 }
<a name="l00500"></a>00500 <span class="comment"></span>
<a name="l00501"></a>00501 <span class="comment">/**</span>
<a name="l00502"></a>00502 <span class="comment"> * @name Neighbour Object Allocation/Freeage</span>
<a name="l00503"></a>00503 <span class="comment"> * @{</span>
<a name="l00504"></a>00504 <span class="comment"> */</span>
<a name="l00505"></a>00505
<a name="l00506"></a>00506 <span class="keyword">struct </span>rtnl_neigh *rtnl_neigh_alloc(<span class="keywordtype">void</span>)
<a name="l00507"></a>00507 {
<a name="l00508"></a>00508 <span class="keywordflow">return</span> (<span class="keyword">struct</span> rtnl_neigh *) <a class="code" href="group__object.html#ga9c1f2fd887d8325839f452879cdf982a" title="Allocate a new object of kind specified by the operations handle.">nl_object_alloc</a>(&neigh_obj_ops);
<a name="l00509"></a>00509 }
<a name="l00510"></a>00510
<a name="l00511"></a>00511 <span class="keywordtype">void</span> rtnl_neigh_put(<span class="keyword">struct</span> rtnl_neigh *neigh)
<a name="l00512"></a>00512 {
<a name="l00513"></a>00513 <a class="code" href="group__object.html#ga9905da094bf4c03cf4ac78aeaa86a12b" title="Release a reference from an object.">nl_object_put</a>((<span class="keyword">struct</span> nl_object *) neigh);
<a name="l00514"></a>00514 }
<a name="l00515"></a>00515 <span class="comment"></span>
<a name="l00516"></a>00516 <span class="comment">/** @} */</span>
<a name="l00517"></a>00517 <span class="comment"></span>
<a name="l00518"></a>00518 <span class="comment">/**</span>
<a name="l00519"></a>00519 <span class="comment"> * @name Neighbour Cache Managament</span>
<a name="l00520"></a>00520 <span class="comment"> * @{</span>
<a name="l00521"></a>00521 <span class="comment"> */</span>
<a name="l00522"></a>00522 <span class="comment"></span>
<a name="l00523"></a>00523 <span class="comment">/**</span>
<a name="l00524"></a>00524 <span class="comment"> * Build a neighbour cache including all neighbours currently configured in the kernel.</span>
<a name="l00525"></a>00525 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00526"></a>00526 <span class="comment"> *</span>
<a name="l00527"></a>00527 <span class="comment"> * Allocates a new neighbour cache, initializes it properly and updates it</span>
<a name="l00528"></a>00528 <span class="comment"> * to include all neighbours currently configured in the kernel.</span>
<a name="l00529"></a>00529 <span class="comment"> *</span>
<a name="l00530"></a>00530 <span class="comment"> * @note The caller is responsible for destroying and freeing the</span>
<a name="l00531"></a>00531 <span class="comment"> * cache after using it.</span>
<a name="l00532"></a>00532 <span class="comment"> * @return The new cache or NULL if an error occured.</span>
<a name="l00533"></a>00533 <span class="comment"> */</span>
<a name="l00534"></a><a class="code" href="group__neigh.html#gad37ec03be6acd25ae30ab803c6e1fd7a">00534</a> <span class="keyword">struct </span>nl_cache *<a class="code" href="group__neigh.html#gad37ec03be6acd25ae30ab803c6e1fd7a" title="Build a neighbour cache including all neighbours currently configured in the kernel.">rtnl_neigh_alloc_cache</a>(<span class="keyword">struct</span> nl_handle *handle)
<a name="l00535"></a>00535 {
<a name="l00536"></a>00536 <span class="keyword">struct </span>nl_cache *cache;
<a name="l00537"></a>00537
<a name="l00538"></a>00538 cache = <a class="code" href="group__cache.html#ga9520ae0f2158db3c081f34c851d92252" title="Allocate an empty cache.">nl_cache_alloc</a>(&rtnl_neigh_ops);
<a name="l00539"></a>00539 <span class="keywordflow">if</span> (cache == NULL)
<a name="l00540"></a>00540 <span class="keywordflow">return</span> NULL;
<a name="l00541"></a>00541
<a name="l00542"></a>00542 <span class="keywordflow">if</span> (handle && <a class="code" href="group__cache.html#gaf5bd584017847e6ef69ec36739a6aaf0" title="(Re)fill a cache with the contents in the kernel.">nl_cache_refill</a>(handle, cache) < 0) {
<a name="l00543"></a>00543 <a class="code" href="group__cache.html#ga530c896db26d72001d011114b1e6cfaa" title="Free a cache.">nl_cache_free</a>(cache);
<a name="l00544"></a>00544 <span class="keywordflow">return</span> NULL;
<a name="l00545"></a>00545 }
<a name="l00546"></a>00546
<a name="l00547"></a>00547 NL_DBG(2, <span class="stringliteral">"Returning new cache %p\n"</span>, cache);
<a name="l00548"></a>00548
<a name="l00549"></a>00549 <span class="keywordflow">return</span> cache;
<a name="l00550"></a>00550 }
<a name="l00551"></a>00551 <span class="comment"></span>
<a name="l00552"></a>00552 <span class="comment">/**</span>
<a name="l00553"></a>00553 <span class="comment"> * Look up a neighbour by interface index and destination address</span>
<a name="l00554"></a>00554 <span class="comment"> * @arg cache neighbour cache</span>
<a name="l00555"></a>00555 <span class="comment"> * @arg ifindex interface index the neighbour is on</span>
<a name="l00556"></a>00556 <span class="comment"> * @arg dst destination address of the neighbour</span>
<a name="l00557"></a>00557 <span class="comment"> * @return neighbour handle or NULL if no match was found.</span>
<a name="l00558"></a>00558 <span class="comment"> */</span>
<a name="l00559"></a><a class="code" href="group__neigh.html#gac0f72f54c8c5f5cacf0f1aae5807ae00">00559</a> <span class="keyword">struct </span>rtnl_neigh * <a class="code" href="group__neigh.html#gac0f72f54c8c5f5cacf0f1aae5807ae00" title="Look up a neighbour by interface index and destination address.">rtnl_neigh_get</a>(<span class="keyword">struct</span> nl_cache *cache, <span class="keywordtype">int</span> ifindex,
<a name="l00560"></a>00560 <span class="keyword">struct</span> nl_addr *dst)
<a name="l00561"></a>00561 {
<a name="l00562"></a>00562 <span class="keyword">struct </span>rtnl_neigh *neigh;
<a name="l00563"></a>00563
<a name="l00564"></a>00564 nl_list_for_each_entry(neigh, &cache->c_items, ce_list) {
<a name="l00565"></a>00565 <span class="keywordflow">if</span> (neigh->n_ifindex == ifindex &&
<a name="l00566"></a>00566 !<a class="code" href="group__addr.html#ga3b85d180a4f6d2df86be1dc8798a7d9a" title="Compares two abstract address objects.">nl_addr_cmp</a>(neigh->n_dst, dst)) {
<a name="l00567"></a>00567 <a class="code" href="group__object.html#gabd5767ac47ec6f09d1ac643f44eb8bfd" title="Acquire a reference on a object.">nl_object_get</a>((<span class="keyword">struct</span> nl_object *) neigh);
<a name="l00568"></a>00568 <span class="keywordflow">return</span> neigh;
<a name="l00569"></a>00569 }
<a name="l00570"></a>00570 }
<a name="l00571"></a>00571
<a name="l00572"></a>00572 <span class="keywordflow">return</span> NULL;
<a name="l00573"></a>00573 }
<a name="l00574"></a>00574 <span class="comment"></span>
<a name="l00575"></a>00575 <span class="comment">/** @} */</span>
<a name="l00576"></a>00576 <span class="comment"></span>
<a name="l00577"></a>00577 <span class="comment">/**</span>
<a name="l00578"></a>00578 <span class="comment"> * @name Neighbour Addition</span>
<a name="l00579"></a>00579 <span class="comment"> * @{</span>
<a name="l00580"></a>00580 <span class="comment"> */</span>
<a name="l00581"></a>00581
<a name="l00582"></a>00582 <span class="keyword">static</span> <span class="keyword">struct </span>nl_msg * build_neigh_msg(<span class="keyword">struct</span> rtnl_neigh *tmpl, <span class="keywordtype">int</span> cmd,
<a name="l00583"></a>00583 <span class="keywordtype">int</span> flags)
<a name="l00584"></a>00584 {
<a name="l00585"></a>00585 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00586"></a>00586 <span class="keyword">struct </span>ndmsg nhdr = {
<a name="l00587"></a>00587 .ndm_ifindex = tmpl->n_ifindex,
<a name="l00588"></a>00588 .ndm_family = nl_addr_get_family(tmpl->n_dst),
<a name="l00589"></a>00589 .ndm_state = NUD_PERMANENT,
<a name="l00590"></a>00590 };
<a name="l00591"></a>00591
<a name="l00592"></a>00592 <span class="keywordflow">if</span> (tmpl->ce_mask & NEIGH_ATTR_STATE)
<a name="l00593"></a>00593 nhdr.ndm_state = tmpl->n_state;
<a name="l00594"></a>00594
<a name="l00595"></a>00595 msg = <a class="code" href="group__msg.html#ga580d8697d19050c55060bc10ab4eae9f" title="Allocate a new netlink message.">nlmsg_alloc_simple</a>(cmd, flags);
<a name="l00596"></a>00596 <span class="keywordflow">if</span> (!msg)
<a name="l00597"></a>00597 <span class="keywordflow">return</span> NULL;
<a name="l00598"></a>00598
<a name="l00599"></a>00599 <span class="keywordflow">if</span> (<a class="code" href="group__msg.html#gacc5e5ade5675d041f86c7c8693f7088d" title="Append data to tail of a netlink message.">nlmsg_append</a>(msg, &nhdr, <span class="keyword">sizeof</span>(nhdr), NLMSG_ALIGNTO) < 0)
<a name="l00600"></a>00600 <span class="keywordflow">goto</span> nla_put_failure;
<a name="l00601"></a>00601
<a name="l00602"></a>00602 <a class="code" href="group__attr.html#ga34038d75b33942a151a0e91791629a76" title="Add a address attribute to a netlink message.">NLA_PUT_ADDR</a>(msg, NDA_DST, tmpl->n_dst);
<a name="l00603"></a>00603
<a name="l00604"></a>00604 <span class="keywordflow">if</span> (tmpl->ce_mask & NEIGH_ATTR_LLADDR)
<a name="l00605"></a>00605 <a class="code" href="group__attr.html#ga34038d75b33942a151a0e91791629a76" title="Add a address attribute to a netlink message.">NLA_PUT_ADDR</a>(msg, NDA_LLADDR, tmpl->n_lladdr);
<a name="l00606"></a>00606
<a name="l00607"></a>00607 <span class="keywordflow">return</span> msg;
<a name="l00608"></a>00608
<a name="l00609"></a>00609 nla_put_failure:
<a name="l00610"></a>00610 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00611"></a>00611 <span class="keywordflow">return</span> NULL;
<a name="l00612"></a>00612 }
<a name="l00613"></a>00613 <span class="comment"></span>
<a name="l00614"></a>00614 <span class="comment">/**</span>
<a name="l00615"></a>00615 <span class="comment"> * Build netlink request message to add a new neighbour</span>
<a name="l00616"></a>00616 <span class="comment"> * @arg tmpl template with data of new neighbour</span>
<a name="l00617"></a>00617 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00618"></a>00618 <span class="comment"> *</span>
<a name="l00619"></a>00619 <span class="comment"> * Builds a new netlink message requesting a addition of a new</span>
<a name="l00620"></a>00620 <span class="comment"> * neighbour. The netlink message header isn't fully equipped with</span>
<a name="l00621"></a>00621 <span class="comment"> * all relevant fields and must thus be sent out via nl_send_auto_complete()</span>
<a name="l00622"></a>00622 <span class="comment"> * or supplemented as needed. \a tmpl must contain the attributes of the new</span>
<a name="l00623"></a>00623 <span class="comment"> * neighbour set via \c rtnl_neigh_set_* functions.</span>
<a name="l00624"></a>00624 <span class="comment"> * </span>
<a name="l00625"></a>00625 <span class="comment"> * The following attributes must be set in the template:</span>
<a name="l00626"></a>00626 <span class="comment"> * - Interface index (rtnl_neigh_set_ifindex())</span>
<a name="l00627"></a>00627 <span class="comment"> * - State (rtnl_neigh_set_state())</span>
<a name="l00628"></a>00628 <span class="comment"> * - Destination address (rtnl_neigh_set_dst())</span>
<a name="l00629"></a>00629 <span class="comment"> * - Link layer address (rtnl_neigh_set_lladdr())</span>
<a name="l00630"></a>00630 <span class="comment"> *</span>
<a name="l00631"></a>00631 <span class="comment"> * @return The netlink message</span>
<a name="l00632"></a>00632 <span class="comment"> */</span>
<a name="l00633"></a><a class="code" href="group__neigh.html#gab07155b529558716c404c20e44cf8a02">00633</a> <span class="keyword">struct </span>nl_msg * <a class="code" href="group__neigh.html#gab07155b529558716c404c20e44cf8a02" title="Build netlink request message to add a new neighbour.">rtnl_neigh_build_add_request</a>(<span class="keyword">struct</span> rtnl_neigh *tmpl, <span class="keywordtype">int</span> flags)
<a name="l00634"></a>00634 {
<a name="l00635"></a>00635 <span class="keywordflow">return</span> build_neigh_msg(tmpl, RTM_NEWNEIGH, <a class="code" href="group__msg.html#ga20a00ae52e4c150f54649d7346d23a7a" title="Create config object if it doesn&#39;t already exist.">NLM_F_CREATE</a> | flags);
<a name="l00636"></a>00636 }
<a name="l00637"></a>00637 <span class="comment"></span>
<a name="l00638"></a>00638 <span class="comment">/**</span>
<a name="l00639"></a>00639 <span class="comment"> * Add a new neighbour</span>
<a name="l00640"></a>00640 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00641"></a>00641 <span class="comment"> * @arg tmpl template with requested changes</span>
<a name="l00642"></a>00642 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00643"></a>00643 <span class="comment"> *</span>
<a name="l00644"></a>00644 <span class="comment"> * Builds a netlink message by calling rtnl_neigh_build_add_request(),</span>
<a name="l00645"></a>00645 <span class="comment"> * sends the request to the kernel and waits for the next ACK to be</span>
<a name="l00646"></a>00646 <span class="comment"> * received and thus blocks until the request has been fullfilled.</span>
<a name="l00647"></a>00647 <span class="comment"> *</span>
<a name="l00648"></a>00648 <span class="comment"> * The following attributes must be set in the template:</span>
<a name="l00649"></a>00649 <span class="comment"> * - Interface index (rtnl_neigh_set_ifindex())</span>
<a name="l00650"></a>00650 <span class="comment"> * - State (rtnl_neigh_set_state())</span>
<a name="l00651"></a>00651 <span class="comment"> * - Destination address (rtnl_neigh_set_dst())</span>
<a name="l00652"></a>00652 <span class="comment"> * - Link layer address (rtnl_neigh_set_lladdr())</span>
<a name="l00653"></a>00653 <span class="comment"> *</span>
<a name="l00654"></a>00654 <span class="comment"> * @return 0 on sucess or a negative error if an error occured.</span>
<a name="l00655"></a>00655 <span class="comment"> */</span>
<a name="l00656"></a><a class="code" href="group__neigh.html#ga1611d01a97a92db4c458b6f95104712f">00656</a> <span class="keywordtype">int</span> <a class="code" href="group__neigh.html#ga1611d01a97a92db4c458b6f95104712f" title="Add a new neighbour.">rtnl_neigh_add</a>(<span class="keyword">struct</span> nl_handle *handle, <span class="keyword">struct</span> rtnl_neigh *tmpl, <span class="keywordtype">int</span> flags)
<a name="l00657"></a>00657 {
<a name="l00658"></a>00658 <span class="keywordtype">int</span> err;
<a name="l00659"></a>00659 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00660"></a>00660
<a name="l00661"></a>00661 msg = <a class="code" href="group__neigh.html#gab07155b529558716c404c20e44cf8a02" title="Build netlink request message to add a new neighbour.">rtnl_neigh_build_add_request</a>(tmpl, flags);
<a name="l00662"></a>00662 <span class="keywordflow">if</span> (!msg)
<a name="l00663"></a>00663 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00664"></a>00664
<a name="l00665"></a>00665 err = <a class="code" href="group__nl.html#ga01a2aad82350f867e704d5c696438b60" title="Send netlink message and check &amp; extend header values as needed.">nl_send_auto_complete</a>(handle, msg);
<a name="l00666"></a>00666 <span class="keywordflow">if</span> (err < 0)
<a name="l00667"></a>00667 <span class="keywordflow">return</span> err;
<a name="l00668"></a>00668
<a name="l00669"></a>00669 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00670"></a>00670 <span class="keywordflow">return</span> <a class="code" href="group__nl.html#gaa65fec588e0a0a2de1881fb8366ccd79" title="Wait for ACK.">nl_wait_for_ack</a>(handle);
<a name="l00671"></a>00671 }
<a name="l00672"></a>00672 <span class="comment"></span>
<a name="l00673"></a>00673 <span class="comment">/** @} */</span>
<a name="l00674"></a>00674 <span class="comment"></span>
<a name="l00675"></a>00675 <span class="comment">/**</span>
<a name="l00676"></a>00676 <span class="comment"> * @name Neighbour Deletion</span>
<a name="l00677"></a>00677 <span class="comment"> * @{</span>
<a name="l00678"></a>00678 <span class="comment"> */</span>
<a name="l00679"></a>00679 <span class="comment"></span>
<a name="l00680"></a>00680 <span class="comment">/**</span>
<a name="l00681"></a>00681 <span class="comment"> * Build a netlink request message to delete a neighbour</span>
<a name="l00682"></a>00682 <span class="comment"> * @arg neigh neighbour to delete</span>
<a name="l00683"></a>00683 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00684"></a>00684 <span class="comment"> *</span>
<a name="l00685"></a>00685 <span class="comment"> * Builds a new netlink message requesting a deletion of a neighbour.</span>
<a name="l00686"></a>00686 <span class="comment"> * The netlink message header isn't fully equipped with all relevant</span>
<a name="l00687"></a>00687 <span class="comment"> * fields and must thus be sent out via nl_send_auto_complete()</span>
<a name="l00688"></a>00688 <span class="comment"> * or supplemented as needed. \a neigh must point to an existing</span>
<a name="l00689"></a>00689 <span class="comment"> * neighbour.</span>
<a name="l00690"></a>00690 <span class="comment"> *</span>
<a name="l00691"></a>00691 <span class="comment"> * @return The netlink message</span>
<a name="l00692"></a>00692 <span class="comment"> */</span>
<a name="l00693"></a><a class="code" href="group__neigh.html#gaa254801cc344c81cc08dec128bc5cdbf">00693</a> <span class="keyword">struct </span>nl_msg *<a class="code" href="group__neigh.html#gaa254801cc344c81cc08dec128bc5cdbf" title="Build a netlink request message to delete a neighbour.">rtnl_neigh_build_delete_request</a>(<span class="keyword">struct</span> rtnl_neigh *neigh,
<a name="l00694"></a>00694 <span class="keywordtype">int</span> flags)
<a name="l00695"></a>00695 {
<a name="l00696"></a>00696 <span class="keywordflow">return</span> build_neigh_msg(neigh, RTM_DELNEIGH, flags);
<a name="l00697"></a>00697 }
<a name="l00698"></a>00698 <span class="comment"></span>
<a name="l00699"></a>00699 <span class="comment">/**</span>
<a name="l00700"></a>00700 <span class="comment"> * Delete a neighbour</span>
<a name="l00701"></a>00701 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00702"></a>00702 <span class="comment"> * @arg neigh neighbour to delete</span>
<a name="l00703"></a>00703 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00704"></a>00704 <span class="comment"> *</span>
<a name="l00705"></a>00705 <span class="comment"> * Builds a netlink message by calling rtnl_neigh_build_delete_request(),</span>
<a name="l00706"></a>00706 <span class="comment"> * sends the request to the kernel and waits for the next ACK to be</span>
<a name="l00707"></a>00707 <span class="comment"> * received and thus blocks until the request has been fullfilled.</span>
<a name="l00708"></a>00708 <span class="comment"> *</span>
<a name="l00709"></a>00709 <span class="comment"> * @return 0 on sucess or a negative error if an error occured.</span>
<a name="l00710"></a>00710 <span class="comment"> */</span>
<a name="l00711"></a><a class="code" href="group__neigh.html#gabdd3b197117d4315e41bf54afbb11725">00711</a> <span class="keywordtype">int</span> <a class="code" href="group__neigh.html#gabdd3b197117d4315e41bf54afbb11725" title="Delete a neighbour.">rtnl_neigh_delete</a>(<span class="keyword">struct</span> nl_handle *handle, <span class="keyword">struct</span> rtnl_neigh *neigh,
<a name="l00712"></a>00712 <span class="keywordtype">int</span> flags)
<a name="l00713"></a>00713 {
<a name="l00714"></a>00714 <span class="keywordtype">int</span> err;
<a name="l00715"></a>00715 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00716"></a>00716
<a name="l00717"></a>00717 msg = <a class="code" href="group__neigh.html#gaa254801cc344c81cc08dec128bc5cdbf" title="Build a netlink request message to delete a neighbour.">rtnl_neigh_build_delete_request</a>(neigh, flags);
<a name="l00718"></a>00718 <span class="keywordflow">if</span> (!msg)
<a name="l00719"></a>00719 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00720"></a>00720
<a name="l00721"></a>00721 err = <a class="code" href="group__nl.html#ga01a2aad82350f867e704d5c696438b60" title="Send netlink message and check &amp; extend header values as needed.">nl_send_auto_complete</a>(handle, msg);
<a name="l00722"></a>00722 <span class="keywordflow">if</span> (err < 0)
<a name="l00723"></a>00723 <span class="keywordflow">return</span> err;
<a name="l00724"></a>00724
<a name="l00725"></a>00725 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00726"></a>00726 <span class="keywordflow">return</span> <a class="code" href="group__nl.html#gaa65fec588e0a0a2de1881fb8366ccd79" title="Wait for ACK.">nl_wait_for_ack</a>(handle);
<a name="l00727"></a>00727 }
<a name="l00728"></a>00728 <span class="comment"></span>
<a name="l00729"></a>00729 <span class="comment">/** @} */</span>
<a name="l00730"></a>00730 <span class="comment"></span>
<a name="l00731"></a>00731 <span class="comment">/**</span>
<a name="l00732"></a>00732 <span class="comment"> * @name Neighbour Modification</span>
<a name="l00733"></a>00733 <span class="comment"> * @{</span>
<a name="l00734"></a>00734 <span class="comment"> */</span>
<a name="l00735"></a>00735 <span class="comment"></span>
<a name="l00736"></a>00736 <span class="comment">/**</span>
<a name="l00737"></a>00737 <span class="comment"> * Build a netlink request message to change neighbour attributes</span>
<a name="l00738"></a>00738 <span class="comment"> * @arg neigh the neighbour to change</span>
<a name="l00739"></a>00739 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00740"></a>00740 <span class="comment"> *</span>
<a name="l00741"></a>00741 <span class="comment"> * Builds a new netlink message requesting a change of a neigh</span>
<a name="l00742"></a>00742 <span class="comment"> * attributes. The netlink message header isn't fully equipped with</span>
<a name="l00743"></a>00743 <span class="comment"> * all relevant fields and must thus be sent out via nl_send_auto_complete()</span>
<a name="l00744"></a>00744 <span class="comment"> * or supplemented as needed.</span>
<a name="l00745"></a>00745 <span class="comment"> *</span>
<a name="l00746"></a>00746 <span class="comment"> * @return The netlink message</span>
<a name="l00747"></a>00747 <span class="comment"> * @note Not all attributes can be changed, see</span>
<a name="l00748"></a>00748 <span class="comment"> * \ref neigh_changeable "Changeable Attributes" for a list.</span>
<a name="l00749"></a>00749 <span class="comment"> */</span>
<a name="l00750"></a><a class="code" href="group__neigh.html#gab4452b62dde528443781bb70929ba909">00750</a> <span class="keyword">struct </span>nl_msg *<a class="code" href="group__neigh.html#gab4452b62dde528443781bb70929ba909" title="Build a netlink request message to change neighbour attributes.">rtnl_neigh_build_change_request</a>(<span class="keyword">struct</span> rtnl_neigh *neigh,
<a name="l00751"></a>00751 <span class="keywordtype">int</span> flags)
<a name="l00752"></a>00752 {
<a name="l00753"></a>00753 <span class="keywordflow">return</span> build_neigh_msg(neigh, RTM_NEWNEIGH, <a class="code" href="group__msg.html#ga508feb1b826c0b8f6b2487c682ddb734" title="Replace existing matching config object with this request.">NLM_F_REPLACE</a> | flags);
<a name="l00754"></a>00754 }
<a name="l00755"></a>00755 <span class="comment"></span>
<a name="l00756"></a>00756 <span class="comment">/**</span>
<a name="l00757"></a>00757 <span class="comment"> * Change neighbour attributes</span>
<a name="l00758"></a>00758 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00759"></a>00759 <span class="comment"> * @arg neigh neighbour to be changed</span>
<a name="l00760"></a>00760 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00761"></a>00761 <span class="comment"> *</span>
<a name="l00762"></a>00762 <span class="comment"> * Builds a netlink message by calling rtnl_neigh_build_change_request(),</span>
<a name="l00763"></a>00763 <span class="comment"> * sends the request to the kernel and waits for the next ACK to be</span>
<a name="l00764"></a>00764 <span class="comment"> * received and thus blocks until the request has been fullfilled.</span>
<a name="l00765"></a>00765 <span class="comment"> *</span>
<a name="l00766"></a>00766 <span class="comment"> * @return 0 on sucess or a negative error if an error occured.</span>
<a name="l00767"></a>00767 <span class="comment"> * @note Not all attributes can be changed, see</span>
<a name="l00768"></a>00768 <span class="comment"> * \ref neigh_changeable "Changeable Attributes" for a list.</span>
<a name="l00769"></a>00769 <span class="comment"> */</span>
<a name="l00770"></a><a class="code" href="group__neigh.html#ga32792f40676344c79998f3a97923f783">00770</a> <span class="keywordtype">int</span> <a class="code" href="group__neigh.html#ga32792f40676344c79998f3a97923f783" title="Change neighbour attributes.">rtnl_neigh_change</a>(<span class="keyword">struct</span> nl_handle *handle, <span class="keyword">struct</span> rtnl_neigh *neigh,
<a name="l00771"></a>00771 <span class="keywordtype">int</span> flags)
<a name="l00772"></a>00772 {
<a name="l00773"></a>00773 <span class="keywordtype">int</span> err;
<a name="l00774"></a>00774 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00775"></a>00775
<a name="l00776"></a>00776 msg = <a class="code" href="group__neigh.html#gab4452b62dde528443781bb70929ba909" title="Build a netlink request message to change neighbour attributes.">rtnl_neigh_build_change_request</a>(neigh, flags);
<a name="l00777"></a>00777 <span class="keywordflow">if</span> (!msg)
<a name="l00778"></a>00778 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00779"></a>00779
<a name="l00780"></a>00780 err = <a class="code" href="group__nl.html#ga01a2aad82350f867e704d5c696438b60" title="Send netlink message and check &amp; extend header values as needed.">nl_send_auto_complete</a>(handle, msg);
<a name="l00781"></a>00781 <span class="keywordflow">if</span> (err < 0)
<a name="l00782"></a>00782 <span class="keywordflow">return</span> err;
<a name="l00783"></a>00783
<a name="l00784"></a>00784 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00785"></a>00785 <span class="keywordflow">return</span> <a class="code" href="group__nl.html#gaa65fec588e0a0a2de1881fb8366ccd79" title="Wait for ACK.">nl_wait_for_ack</a>(handle);
<a name="l00786"></a>00786 }
<a name="l00787"></a>00787 <span class="comment"></span>
<a name="l00788"></a>00788 <span class="comment">/** @} */</span>
<a name="l00789"></a>00789 <span class="comment"></span>
<a name="l00790"></a>00790 <span class="comment">/**</span>
<a name="l00791"></a>00791 <span class="comment"> * @name Neighbour States Translations</span>
<a name="l00792"></a>00792 <span class="comment"> * @{</span>
<a name="l00793"></a>00793 <span class="comment"> */</span>
<a name="l00794"></a>00794
<a name="l00795"></a>00795 <span class="keyword">static</span> <span class="keyword">struct </span>trans_tbl neigh_states[] = {
<a name="l00796"></a>00796 __ADD(NUD_INCOMPLETE, incomplete)
<a name="l00797"></a>00797 __ADD(NUD_REACHABLE, reachable)
<a name="l00798"></a>00798 __ADD(NUD_STALE, stale)
<a name="l00799"></a>00799 __ADD(NUD_DELAY, delay)
<a name="l00800"></a>00800 __ADD(NUD_PROBE, probe)
<a name="l00801"></a>00801 __ADD(NUD_FAILED, failed)
<a name="l00802"></a>00802 __ADD(NUD_NOARP, norarp)
<a name="l00803"></a>00803 __ADD(NUD_PERMANENT, permanent)
<a name="l00804"></a>00804 };
<a name="l00805"></a>00805
<a name="l00806"></a>00806 <span class="keywordtype">char</span> * rtnl_neigh_state2str(<span class="keywordtype">int</span> state, <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> len)
<a name="l00807"></a>00807 {
<a name="l00808"></a>00808 <span class="keywordflow">return</span> __flags2str(state, buf, len, neigh_states,
<a name="l00809"></a>00809 ARRAY_SIZE(neigh_states));
<a name="l00810"></a>00810 }
<a name="l00811"></a>00811
<a name="l00812"></a>00812 <span class="keywordtype">int</span> rtnl_neigh_str2state(<span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00813"></a>00813 {
<a name="l00814"></a>00814 <span class="keywordflow">return</span> __str2type(name, neigh_states, ARRAY_SIZE(neigh_states));
<a name="l00815"></a>00815 }
<a name="l00816"></a>00816 <span class="comment"></span>
<a name="l00817"></a>00817 <span class="comment">/** @} */</span>
<a name="l00818"></a>00818 <span class="comment"></span>
<a name="l00819"></a>00819 <span class="comment">/**</span>
<a name="l00820"></a>00820 <span class="comment"> * @name Neighbour Flags Translations</span>
<a name="l00821"></a>00821 <span class="comment"> * @{</span>
<a name="l00822"></a>00822 <span class="comment"> */</span>
<a name="l00823"></a>00823
<a name="l00824"></a>00824 <span class="keyword">static</span> <span class="keyword">struct </span>trans_tbl neigh_flags[] = {
<a name="l00825"></a>00825 __ADD(NTF_PROXY, proxy)
<a name="l00826"></a>00826 __ADD(NTF_ROUTER, router)
<a name="l00827"></a>00827 };
<a name="l00828"></a>00828
<a name="l00829"></a>00829 <span class="keywordtype">char</span> * rtnl_neigh_flags2str(<span class="keywordtype">int</span> flags, <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> len)
<a name="l00830"></a>00830 {
<a name="l00831"></a>00831 <span class="keywordflow">return</span> __flags2str(flags, buf, len, neigh_flags,
<a name="l00832"></a>00832 ARRAY_SIZE(neigh_flags));
<a name="l00833"></a>00833 }
<a name="l00834"></a>00834
<a name="l00835"></a>00835 <span class="keywordtype">int</span> rtnl_neigh_str2flag(<span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00836"></a>00836 {
<a name="l00837"></a>00837 <span class="keywordflow">return</span> __str2type(name, neigh_flags, ARRAY_SIZE(neigh_flags));
<a name="l00838"></a>00838 }
<a name="l00839"></a>00839 <span class="comment"></span>
<a name="l00840"></a>00840 <span class="comment">/** @} */</span>
<a name="l00841"></a>00841 <span class="comment"></span>
<a name="l00842"></a>00842 <span class="comment">/**</span>
<a name="l00843"></a>00843 <span class="comment"> * @name Attributes</span>
<a name="l00844"></a>00844 <span class="comment"> * @{</span>
<a name="l00845"></a>00845 <span class="comment"> */</span>
<a name="l00846"></a>00846
<a name="l00847"></a>00847 <span class="keywordtype">void</span> rtnl_neigh_set_state(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keywordtype">int</span> state)
<a name="l00848"></a>00848 {
<a name="l00849"></a>00849 neigh->n_state_mask |= state;
<a name="l00850"></a>00850 neigh->n_state |= state;
<a name="l00851"></a>00851 neigh->ce_mask |= NEIGH_ATTR_STATE;
<a name="l00852"></a>00852 }
<a name="l00853"></a>00853
<a name="l00854"></a>00854 <span class="keywordtype">int</span> rtnl_neigh_get_state(<span class="keyword">struct</span> rtnl_neigh *neigh)
<a name="l00855"></a>00855 {
<a name="l00856"></a>00856 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_STATE)
<a name="l00857"></a>00857 <span class="keywordflow">return</span> neigh->n_state;
<a name="l00858"></a>00858 <span class="keywordflow">else</span>
<a name="l00859"></a>00859 <span class="keywordflow">return</span> -1;
<a name="l00860"></a>00860 }
<a name="l00861"></a>00861
<a name="l00862"></a>00862 <span class="keywordtype">void</span> rtnl_neigh_unset_state(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keywordtype">int</span> state)
<a name="l00863"></a>00863 {
<a name="l00864"></a>00864 neigh->n_state_mask |= state;
<a name="l00865"></a>00865 neigh->n_state &= ~state;
<a name="l00866"></a>00866 neigh->ce_mask |= NEIGH_ATTR_STATE;
<a name="l00867"></a>00867 }
<a name="l00868"></a>00868
<a name="l00869"></a>00869 <span class="keywordtype">void</span> rtnl_neigh_set_flags(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> flags)
<a name="l00870"></a>00870 {
<a name="l00871"></a>00871 neigh->n_flag_mask |= flags;
<a name="l00872"></a>00872 neigh->n_flags |= flags;
<a name="l00873"></a>00873 neigh->ce_mask |= NEIGH_ATTR_FLAGS;
<a name="l00874"></a>00874 }
<a name="l00875"></a>00875
<a name="l00876"></a>00876 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rtnl_neigh_get_flags(<span class="keyword">struct</span> rtnl_neigh *neigh)
<a name="l00877"></a>00877 {
<a name="l00878"></a>00878 <span class="keywordflow">return</span> neigh->n_flags;
<a name="l00879"></a>00879 }
<a name="l00880"></a>00880
<a name="l00881"></a>00881 <span class="keywordtype">void</span> rtnl_neigh_unset_flags(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> flags)
<a name="l00882"></a>00882 {
<a name="l00883"></a>00883 neigh->n_flag_mask |= flags;
<a name="l00884"></a>00884 neigh->n_flags &= ~flags;
<a name="l00885"></a>00885 neigh->ce_mask |= NEIGH_ATTR_FLAGS;
<a name="l00886"></a>00886 }
<a name="l00887"></a>00887
<a name="l00888"></a>00888 <span class="keywordtype">void</span> rtnl_neigh_set_ifindex(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keywordtype">int</span> ifindex)
<a name="l00889"></a>00889 {
<a name="l00890"></a>00890 neigh->n_ifindex = ifindex;
<a name="l00891"></a>00891 neigh->ce_mask |= NEIGH_ATTR_IFINDEX;
<a name="l00892"></a>00892 }
<a name="l00893"></a>00893
<a name="l00894"></a>00894 <span class="keywordtype">int</span> rtnl_neigh_get_ifindex(<span class="keyword">struct</span> rtnl_neigh *neigh)
<a name="l00895"></a>00895 {
<a name="l00896"></a>00896 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_IFINDEX)
<a name="l00897"></a>00897 <span class="keywordflow">return</span> neigh->n_ifindex;
<a name="l00898"></a>00898 <span class="keywordflow">else</span>
<a name="l00899"></a>00899 <span class="keywordflow">return</span> <a class="code" href="group__link.html#ga774720bec7d14a6e314238c42122ec78" title="Special interface index stating the link was not found.">RTNL_LINK_NOT_FOUND</a>;
<a name="l00900"></a>00900 }
<a name="l00901"></a>00901
<a name="l00902"></a>00902 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> __assign_addr(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keyword">struct</span> nl_addr **pos,
<a name="l00903"></a>00903 <span class="keyword">struct</span> nl_addr *<span class="keyword">new</span>, <span class="keywordtype">int</span> flag, <span class="keywordtype">int</span> nocheck)
<a name="l00904"></a>00904 {
<a name="l00905"></a>00905 <span class="keywordflow">if</span> (!nocheck) {
<a name="l00906"></a>00906 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_FAMILY) {
<a name="l00907"></a>00907 <span class="keywordflow">if</span> (new->a_family != neigh->n_family)
<a name="l00908"></a>00908 <span class="keywordflow">return</span> nl_error(EINVAL,
<a name="l00909"></a>00909 <span class="stringliteral">"Address family mismatch"</span>);
<a name="l00910"></a>00910 } <span class="keywordflow">else</span> {
<a name="l00911"></a>00911 neigh->n_family = <span class="keyword">new</span>->a_family;
<a name="l00912"></a>00912 neigh->ce_mask |= NEIGH_ATTR_FAMILY;
<a name="l00913"></a>00913 }
<a name="l00914"></a>00914 }
<a name="l00915"></a>00915
<a name="l00916"></a>00916 <span class="keywordflow">if</span> (*pos)
<a name="l00917"></a>00917 nl_addr_put(*pos);
<a name="l00918"></a>00918
<a name="l00919"></a>00919 nl_addr_get(<span class="keyword">new</span>);
<a name="l00920"></a>00920 *pos = <span class="keyword">new</span>;
<a name="l00921"></a>00921
<a name="l00922"></a>00922 neigh->ce_mask |= flag;
<a name="l00923"></a>00923
<a name="l00924"></a>00924 <span class="keywordflow">return</span> 0;
<a name="l00925"></a>00925 }
<a name="l00926"></a>00926
<a name="l00927"></a>00927 <span class="keywordtype">void</span> rtnl_neigh_set_lladdr(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keyword">struct</span> nl_addr *addr)
<a name="l00928"></a>00928 {
<a name="l00929"></a>00929 __assign_addr(neigh, &neigh->n_lladdr, addr, NEIGH_ATTR_LLADDR, 1);
<a name="l00930"></a>00930 }
<a name="l00931"></a>00931
<a name="l00932"></a>00932 <span class="keyword">struct </span>nl_addr *rtnl_neigh_get_lladdr(<span class="keyword">struct</span> rtnl_neigh *neigh)
<a name="l00933"></a>00933 {
<a name="l00934"></a>00934 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_LLADDR)
<a name="l00935"></a>00935 <span class="keywordflow">return</span> neigh->n_lladdr;
<a name="l00936"></a>00936 <span class="keywordflow">else</span>
<a name="l00937"></a>00937 <span class="keywordflow">return</span> NULL;
<a name="l00938"></a>00938 }
<a name="l00939"></a>00939
<a name="l00940"></a>00940 <span class="keywordtype">int</span> rtnl_neigh_set_dst(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keyword">struct</span> nl_addr *addr)
<a name="l00941"></a>00941 {
<a name="l00942"></a>00942 <span class="keywordflow">return</span> __assign_addr(neigh, &neigh->n_dst, addr,
<a name="l00943"></a>00943 NEIGH_ATTR_DST, 0);
<a name="l00944"></a>00944 }
<a name="l00945"></a>00945
<a name="l00946"></a>00946 <span class="keyword">struct </span>nl_addr *rtnl_neigh_get_dst(<span class="keyword">struct</span> rtnl_neigh *neigh)
<a name="l00947"></a>00947 {
<a name="l00948"></a>00948 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_DST)
<a name="l00949"></a>00949 <span class="keywordflow">return</span> neigh->n_dst;
<a name="l00950"></a>00950 <span class="keywordflow">else</span>
<a name="l00951"></a>00951 <span class="keywordflow">return</span> NULL;
<a name="l00952"></a>00952 }
<a name="l00953"></a>00953
<a name="l00954"></a>00954 <span class="keywordtype">void</span> rtnl_neigh_set_family(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keywordtype">int</span> family)
<a name="l00955"></a>00955 {
<a name="l00956"></a>00956 neigh->n_family = family;
<a name="l00957"></a>00957 neigh->ce_mask |= NEIGH_ATTR_FAMILY;
<a name="l00958"></a>00958 }
<a name="l00959"></a>00959
<a name="l00960"></a>00960 <span class="keywordtype">void</span> rtnl_neigh_set_type(<span class="keyword">struct</span> rtnl_neigh *neigh, <span class="keywordtype">int</span> type)
<a name="l00961"></a>00961 {
<a name="l00962"></a>00962 neigh->n_type = type;
<a name="l00963"></a>00963 neigh->ce_mask = NEIGH_ATTR_TYPE;
<a name="l00964"></a>00964 }
<a name="l00965"></a>00965
<a name="l00966"></a>00966 <span class="keywordtype">int</span> rtnl_neigh_get_type(<span class="keyword">struct</span> rtnl_neigh *neigh)
<a name="l00967"></a>00967 {
<a name="l00968"></a>00968 <span class="keywordflow">if</span> (neigh->ce_mask & NEIGH_ATTR_TYPE)
<a name="l00969"></a>00969 <span class="keywordflow">return</span> neigh->n_type;
<a name="l00970"></a>00970 <span class="keywordflow">else</span>
<a name="l00971"></a>00971 <span class="keywordflow">return</span> -1;
<a name="l00972"></a>00972 }
<a name="l00973"></a>00973 <span class="comment"></span>
<a name="l00974"></a>00974 <span class="comment">/** @} */</span>
<a name="l00975"></a>00975
<a name="l00976"></a>00976 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnl__object__ops.html" title="Object Operations.">nl_object_ops</a> neigh_obj_ops = {
<a name="l00977"></a>00977 .<a class="code" href="structnl__object__ops.html#a5225584343fe711642303e000b036ee9" title="Unique name of object type.">oo_name</a> = <span class="stringliteral">"route/neigh"</span>,
<a name="l00978"></a>00978 .oo_size = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>rtnl_neigh),
<a name="l00979"></a>00979 .oo_free_data = neigh_free_data,
<a name="l00980"></a>00980 .oo_clone = neigh_clone,
<a name="l00981"></a>00981 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a5597887c080d5ecae358b6065a4048fd" title="Dump object in a brief one-liner.">NL_DUMP_BRIEF</a>] = neigh_dump_brief,
<a name="l00982"></a>00982 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a1445106c7af529b2c99ee289fbcd3179" title="Dump all attributes but no statistics.">NL_DUMP_FULL</a>] = neigh_dump_full,
<a name="l00983"></a>00983 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a8ebedc55094df6175b84fb1230047a65" title="Dump all attributes including statistics.">NL_DUMP_STATS</a>] = neigh_dump_stats,
<a name="l00984"></a>00984 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9aa5b83654e99e53423c39b0d6e835d768" title="Dump all attribtes in XML format.">NL_DUMP_XML</a>] = neigh_dump_xml,
<a name="l00985"></a>00985 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a7178b29f7f68857970540f2d1dabbaf1" title="Dump all attribtues as env variables.">NL_DUMP_ENV</a>] = neigh_dump_env,
<a name="l00986"></a>00986 .oo_compare = neigh_compare,
<a name="l00987"></a>00987 .oo_attrs2str = neigh_attrs2str,
<a name="l00988"></a>00988 .oo_id_attrs = (NEIGH_ATTR_DST | NEIGH_ATTR_FAMILY),
<a name="l00989"></a>00989 };
<a name="l00990"></a>00990
<a name="l00991"></a>00991 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnl__af__group.html" title="Address family to netlink group association.">nl_af_group</a> neigh_groups[] = {
<a name="l00992"></a>00992 { AF_UNSPEC, RTNLGRP_NEIGH },
<a name="l00993"></a>00993 { END_OF_GROUP_LIST },
<a name="l00994"></a>00994 };
<a name="l00995"></a>00995
<a name="l00996"></a>00996 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnl__cache__ops.html" title="Cache Operations.">nl_cache_ops</a> rtnl_neigh_ops = {
<a name="l00997"></a>00997 .co_name = <span class="stringliteral">"route/neigh"</span>,
<a name="l00998"></a>00998 .co_hdrsize = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>ndmsg),
<a name="l00999"></a>00999 .co_msgtypes = {
<a name="l01000"></a>01000 { RTM_NEWNEIGH, NL_ACT_NEW, <span class="stringliteral">"new"</span> },
<a name="l01001"></a>01001 { RTM_DELNEIGH, NL_ACT_DEL, <span class="stringliteral">"del"</span> },
<a name="l01002"></a>01002 { RTM_GETNEIGH, NL_ACT_GET, <span class="stringliteral">"get"</span> },
<a name="l01003"></a>01003 END_OF_MSGTYPES_LIST,
<a name="l01004"></a>01004 },
<a name="l01005"></a>01005 .co_protocol = NETLINK_ROUTE,
<a name="l01006"></a>01006 .co_groups = neigh_groups,
<a name="l01007"></a>01007 .co_request_update = neigh_request_update,
<a name="l01008"></a>01008 .co_msg_parser = neigh_msg_parser,
<a name="l01009"></a>01009 .co_obj_ops = &neigh_obj_ops,
<a name="l01010"></a>01010 };
<a name="l01011"></a>01011
<a name="l01012"></a>01012 <span class="keyword">static</span> <span class="keywordtype">void</span> __init neigh_init(<span class="keywordtype">void</span>)
<a name="l01013"></a>01013 {
<a name="l01014"></a>01014 <a class="code" href="group__cache__mngt.html#ga390eeb1fa61634cf1c216792c6df63c3" title="Register a set of cache operations.">nl_cache_mngt_register</a>(&rtnl_neigh_ops);
<a name="l01015"></a>01015 }
<a name="l01016"></a>01016
<a name="l01017"></a>01017 <span class="keyword">static</span> <span class="keywordtype">void</span> __exit neigh_exit(<span class="keywordtype">void</span>)
<a name="l01018"></a>01018 {
<a name="l01019"></a>01019 <a class="code" href="group__cache__mngt.html#ga09f56b767b3868b7e0cf8559863dde77" title="Unregister a set of cache operations.">nl_cache_mngt_unregister</a>(&rtnl_neigh_ops);
<a name="l01020"></a>01020 }
<a name="l01021"></a>01021 <span class="comment"></span>
<a name="l01022"></a>01022 <span class="comment">/** @} */</span>
</pre></div></div>
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