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<h1>lib/route/rule.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/rule.c Routing Rules</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 rule Routing Rules</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"> */</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="preprocessor">#include <netlink-local.h></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <netlink/netlink.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <netlink/utils.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <netlink/route/rtnl.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <netlink/route/rule.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <inttypes.h></span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment">/** @cond SKIP */</span>
<a name="l00027"></a>00027 <span class="preprocessor">#define RULE_ATTR_FAMILY 0x0001</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_PRIO 0x0002</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_MARK 0x0004</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_IIF 0x0008</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_REALMS 0x0010</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_SRC 0x0020</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_DST 0x0040</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_DSFIELD 0x0080</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_TABLE 0x0100</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_TYPE 0x0200</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_SRC_LEN 0x0400</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_DST_LEN 0x0800</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#define RULE_ATTR_SRCMAP 0x1000</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span>
<a name="l00041"></a>00041 <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_rule_ops;
<a name="l00042"></a>00042 <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> rule_obj_ops;<span class="comment"></span>
<a name="l00043"></a>00043 <span class="comment">/** @endcond */</span>
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">static</span> <span class="keywordtype">void</span> rule_free_data(<span class="keyword">struct</span> nl_object *c)
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 <span class="keyword">struct </span>rtnl_rule *rule = nl_object_priv(c);
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keywordflow">if</span> (!rule)
<a name="l00050"></a>00050 <span class="keywordflow">return</span>;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 nl_addr_put(rule->r_src);
<a name="l00053"></a>00053 nl_addr_put(rule->r_dst);
<a name="l00054"></a>00054 }
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_clone(<span class="keyword">struct</span> nl_object *_dst, <span class="keyword">struct</span> nl_object *_src)
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 <span class="keyword">struct </span>rtnl_rule *dst = nl_object_priv(_dst);
<a name="l00059"></a>00059 <span class="keyword">struct </span>rtnl_rule *src = nl_object_priv(_src);
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keywordflow">if</span> (src->r_src)
<a name="l00062"></a>00062 <span class="keywordflow">if</span> (!(dst->r_src = <a class="code" href="group__addr.html#ga40b37a1ccec7acf84d868e588e516cba" title="Clone existing abstract address object.">nl_addr_clone</a>(src->r_src)))
<a name="l00063"></a>00063 <span class="keywordflow">goto</span> errout;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordflow">if</span> (src->r_dst)
<a name="l00066"></a>00066 <span class="keywordflow">if</span> (!(dst->r_dst = <a class="code" href="group__addr.html#ga40b37a1ccec7acf84d868e588e516cba" title="Clone existing abstract address object.">nl_addr_clone</a>(src->r_dst)))
<a name="l00067"></a>00067 <span class="keywordflow">goto</span> errout;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keywordflow">return</span> 0;
<a name="l00070"></a>00070 errout:
<a name="l00071"></a>00071 <span class="keywordflow">return</span> nl_get_errno();
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnla__policy.html" title="attribute validation policy">nla_policy</a> rule_policy[RTA_MAX+1] = {
<a name="l00075"></a>00075 [RTA_PRIORITY] = { .<a class="code" href="structnla__policy.html#aaa36c9d1e298fc9e4ee16a8fb553b32a" title="Type of attribute or NLA_UNSPEC.">type</a> = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00076"></a>00076 [RTA_FLOW] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00077"></a>00077 [RTA_PROTOINFO] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00078"></a>00078 [RTA_IIF] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55ba284d1eafd6d5d99cedaff3cd5f5a8378" title="character string">NLA_STRING</a>,
<a name="l00079"></a>00079 .maxlen = IFNAMSIZ, },
<a name="l00080"></a>00080 };
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_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="l00083"></a>00083 <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="l00084"></a>00084 {
<a name="l00085"></a>00085 <span class="keyword">struct </span>rtnl_rule *rule;
<a name="l00086"></a>00086 <span class="keyword">struct </span>rtmsg *r;
<a name="l00087"></a>00087 <span class="keyword">struct </span>nlattr *tb[RTA_MAX+1];
<a name="l00088"></a>00088 <span class="keywordtype">int</span> err = 1;
<a name="l00089"></a>00089
<a name="l00090"></a>00090 rule = rtnl_rule_alloc();
<a name="l00091"></a>00091 <span class="keywordflow">if</span> (!rule) {
<a name="l00092"></a>00092 err = nl_errno(ENOMEM);
<a name="l00093"></a>00093 <span class="keywordflow">goto</span> errout;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 rule->ce_msgtype = n-><a class="code" href="structnlmsghdr.html#a7232c4e6cb513010e64887b7eebf8823" title="Message type (content type)">nlmsg_type</a>;
<a name="l00097"></a>00097 r = <a class="code" href="group__msg.html#gae44a904bb40c8b5f5ff31539c21cfa5a" title="head of message payload">nlmsg_data</a>(n);
<a name="l00098"></a>00098
<a name="l00099"></a>00099 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>(*r), tb, RTA_MAX, rule_policy);
<a name="l00100"></a>00100 <span class="keywordflow">if</span> (err < 0)
<a name="l00101"></a>00101 <span class="keywordflow">goto</span> errout;
<a name="l00102"></a>00102
<a name="l00103"></a>00103 rule->r_family = r->rtm_family;
<a name="l00104"></a>00104 rule->r_type = r->rtm_type;
<a name="l00105"></a>00105 rule->r_dsfield = r->rtm_tos;
<a name="l00106"></a>00106 rule->r_src_len = r->rtm_src_len;
<a name="l00107"></a>00107 rule->r_dst_len = r->rtm_dst_len;
<a name="l00108"></a>00108 rule->r_table = r->rtm_table;
<a name="l00109"></a>00109 rule->ce_mask = (RULE_ATTR_FAMILY | RULE_ATTR_TYPE | RULE_ATTR_DSFIELD |
<a name="l00110"></a>00110 RULE_ATTR_SRC_LEN | RULE_ATTR_DST_LEN |RULE_ATTR_TYPE);
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (tb[RTA_PRIORITY]) {
<a name="l00113"></a>00113 rule->r_prio = <a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(tb[RTA_PRIORITY]);
<a name="l00114"></a>00114 rule->ce_mask |= RULE_ATTR_PRIO;
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keywordflow">if</span> (tb[RTA_SRC]) {
<a name="l00118"></a>00118 rule->r_src = <a class="code" href="group__attr.html#ga98a5ac1eefea9266cf46c91b9a9867f3" title="Return payload of address attribute.">nla_get_addr</a>(tb[RTA_SRC], r->rtm_family);
<a name="l00119"></a>00119 <span class="keywordflow">if</span> (!rule->r_src) {
<a name="l00120"></a>00120 err = nl_errno(ENOMEM);
<a name="l00121"></a>00121 <span class="keywordflow">goto</span> errout;
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 nl_addr_set_prefixlen(rule->r_src, r->rtm_src_len);
<a name="l00124"></a>00124 rule->ce_mask |= RULE_ATTR_SRC;
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keywordflow">if</span> (tb[RTA_DST]) {
<a name="l00128"></a>00128 rule->r_dst = <a class="code" href="group__attr.html#ga98a5ac1eefea9266cf46c91b9a9867f3" title="Return payload of address attribute.">nla_get_addr</a>(tb[RTA_DST], r->rtm_family);
<a name="l00129"></a>00129 <span class="keywordflow">if</span> (!rule->r_dst) {
<a name="l00130"></a>00130 err = nl_errno(ENOMEM);
<a name="l00131"></a>00131 <span class="keywordflow">goto</span> errout;
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133 nl_addr_set_prefixlen(rule->r_dst, r->rtm_dst_len);
<a name="l00134"></a>00134 rule->ce_mask |= RULE_ATTR_DST;
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keywordflow">if</span> (tb[RTA_PROTOINFO]) {
<a name="l00138"></a>00138 rule->r_mark = <a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(tb[RTA_PROTOINFO]);
<a name="l00139"></a>00139 rule->ce_mask |= RULE_ATTR_MARK;
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keywordflow">if</span> (tb[RTA_IIF]) {
<a name="l00143"></a>00143 <a class="code" href="group__attr.html#gaabddc8018334423d84088d241b4b7830" title="Copy string attribute payload into a sized buffer.">nla_strlcpy</a>(rule->r_iif, tb[RTA_IIF], IFNAMSIZ);
<a name="l00144"></a>00144 rule->ce_mask |= RULE_ATTR_IIF;
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="keywordflow">if</span> (tb[RTA_FLOW]) {
<a name="l00148"></a>00148 rule->r_realms = <a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(tb[RTA_FLOW]);
<a name="l00149"></a>00149 rule->ce_mask |= RULE_ATTR_REALMS;
<a name="l00150"></a>00150 }
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordflow">if</span> (tb[RTA_GATEWAY]) {
<a name="l00153"></a>00153 rule->r_srcmap = <a class="code" href="group__attr.html#ga98a5ac1eefea9266cf46c91b9a9867f3" title="Return payload of address attribute.">nla_get_addr</a>(tb[RTA_GATEWAY], r->rtm_family);
<a name="l00154"></a>00154 <span class="keywordflow">if</span> (!rule->r_srcmap) {
<a name="l00155"></a>00155 err = nl_errno(ENOMEM);
<a name="l00156"></a>00156 <span class="keywordflow">goto</span> errout;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 rule->ce_mask |= RULE_ATTR_SRCMAP;
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161 err = pp->pp_cb((<span class="keyword">struct</span> nl_object *) rule, pp);
<a name="l00162"></a>00162 <span class="keywordflow">if</span> (err < 0)
<a name="l00163"></a>00163 <span class="keywordflow">goto</span> errout;
<a name="l00164"></a>00164
<a name="l00165"></a>00165 err = P_ACCEPT;
<a name="l00166"></a>00166
<a name="l00167"></a>00167 errout:
<a name="l00168"></a>00168 rtnl_rule_put(rule);
<a name="l00169"></a>00169 <span class="keywordflow">return</span> err;
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_request_update(<span class="keyword">struct</span> nl_cache *c, <span class="keyword">struct</span> nl_handle *h)
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174 <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_GETRULE, AF_UNSPEC, <a class="code" href="group__msg.html#ga8d4fb2458c013decb6673f41c52c07b1" title="Dump all entries.">NLM_F_DUMP</a>);
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_dump_brief(<span class="keyword">struct</span> nl_object *o, <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p)
<a name="l00178"></a>00178 {
<a name="l00179"></a>00179 <span class="keyword">struct </span>rtnl_rule *r = (<span class="keyword">struct </span>rtnl_rule *) o;
<a name="l00180"></a>00180 <span class="keywordtype">char</span> buf[128];
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_PRIO)
<a name="l00183"></a>00183 dp_dump(p, <span class="stringliteral">"%d:\t"</span>, r->r_prio);
<a name="l00184"></a>00184 <span class="keywordflow">else</span>
<a name="l00185"></a>00185 dp_dump(p, <span class="stringliteral">"0:\t"</span>);
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_SRC)
<a name="l00188"></a>00188 dp_dump(p, <span class="stringliteral">"from %s "</span>,
<a name="l00189"></a>00189 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(r->r_src, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00190"></a>00190 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_SRC_LEN && r->r_src_len)
<a name="l00191"></a>00191 dp_dump(p, <span class="stringliteral">"from 0/%d "</span>, r->r_src_len);
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_DST)
<a name="l00194"></a>00194 dp_dump(p, <span class="stringliteral">"to %s "</span>,
<a name="l00195"></a>00195 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(r->r_dst, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00196"></a>00196 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_DST_LEN && r->r_dst_len)
<a name="l00197"></a>00197 dp_dump(p, <span class="stringliteral">"to 0/%d "</span>, r->r_dst_len);
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_DSFIELD && r->r_dsfield)
<a name="l00200"></a>00200 dp_dump(p, <span class="stringliteral">"tos %d "</span>, r->r_dsfield);
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_MARK)
<a name="l00203"></a>00203 dp_dump(p, <span class="stringliteral">"mark %"</span> PRIx64 , r->r_mark);
<a name="l00204"></a>00204
<a name="l00205"></a>00205 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_IIF)
<a name="l00206"></a>00206 dp_dump(p, <span class="stringliteral">"iif %s "</span>, r->r_iif);
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_TABLE)
<a name="l00209"></a>00209 dp_dump(p, <span class="stringliteral">"lookup %s "</span>,
<a name="l00210"></a>00210 rtnl_route_table2str(r->r_table, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="keywordflow">if</span> (r->ce_mask & RULE_ATTR_REALMS)
<a name="l00213"></a>00213 dp_dump(p, <span class="stringliteral">"realms %s "</span>,
<a name="l00214"></a>00214 rtnl_realms2str(r->r_realms, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00215"></a>00215
<a name="l00216"></a>00216 dp_dump(p, <span class="stringliteral">"action %s\n"</span>,
<a name="l00217"></a>00217 nl_rtntype2str(r->r_type, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00218"></a>00218
<a name="l00219"></a>00219 <span class="keywordflow">return</span> 1;
<a name="l00220"></a>00220 }
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_dump_full(<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="l00223"></a>00223 {
<a name="l00224"></a>00224 <span class="keyword">struct </span>rtnl_rule *rule = (<span class="keyword">struct </span>rtnl_rule *) obj;
<a name="l00225"></a>00225 <span class="keywordtype">char</span> buf[128];
<a name="l00226"></a>00226 <span class="keywordtype">int</span> line;
<a name="l00227"></a>00227
<a name="l00228"></a>00228 line = rule_dump_brief(obj, p);
<a name="l00229"></a>00229
<a name="l00230"></a>00230 dp_dump_line(p, line++, <span class="stringliteral">" family %s"</span>,
<a name="l00231"></a>00231 nl_af2str(rule->r_family, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRCMAP)
<a name="l00234"></a>00234 dp_dump(p, <span class="stringliteral">" srcmap %s"</span>,
<a name="l00235"></a>00235 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(rule->r_srcmap, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00236"></a>00236
<a name="l00237"></a>00237 dp_dump(p, <span class="stringliteral">"\n"</span>);
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keywordflow">return</span> line;
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_dump_stats(<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="l00243"></a>00243 {
<a name="l00244"></a>00244 <span class="keywordflow">return</span> rule_dump_full(obj, p);
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246
<a name="l00247"></a>00247 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_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="l00248"></a>00248 {
<a name="l00249"></a>00249 <span class="keyword">struct </span>rtnl_rule *rule = (<span class="keyword">struct </span>rtnl_rule *) obj;
<a name="l00250"></a>00250 <span class="keywordtype">char</span> buf[128];
<a name="l00251"></a>00251 <span class="keywordtype">int</span> line = 0;
<a name="l00252"></a>00252
<a name="l00253"></a>00253 dp_dump_line(p, line++, <span class="stringliteral">"<rule>\n"</span>);
<a name="l00254"></a>00254
<a name="l00255"></a>00255 dp_dump_line(p, line++, <span class="stringliteral">" <priority>%u</priority>\n"</span>,
<a name="l00256"></a>00256 rule->r_prio);
<a name="l00257"></a>00257 dp_dump_line(p, line++, <span class="stringliteral">" <family>%s</family>\n"</span>,
<a name="l00258"></a>00258 nl_af2str(rule->r_family, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00259"></a>00259
<a name="l00260"></a>00260 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DST)
<a name="l00261"></a>00261 dp_dump_line(p, line++, <span class="stringliteral">" <dst>%s</dst>\n"</span>,
<a name="l00262"></a>00262 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(rule->r_dst, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DST_LEN)
<a name="l00265"></a>00265 dp_dump_line(p, line++, <span class="stringliteral">" <dstlen>%u</dstlen>\n"</span>,
<a name="l00266"></a>00266 rule->r_dst_len);
<a name="l00267"></a>00267
<a name="l00268"></a>00268 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRC)
<a name="l00269"></a>00269 dp_dump_line(p, line++, <span class="stringliteral">" <src>%s</src>\n"</span>,
<a name="l00270"></a>00270 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(rule->r_src, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRC_LEN)
<a name="l00273"></a>00273 dp_dump_line(p, line++, <span class="stringliteral">" <srclen>%u</srclen>\n"</span>,
<a name="l00274"></a>00274 rule->r_src_len);
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_IIF)
<a name="l00277"></a>00277 dp_dump_line(p, line++, <span class="stringliteral">" <iif>%s</iif>\n"</span>, rule->r_iif);
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_TABLE)
<a name="l00280"></a>00280 dp_dump_line(p, line++, <span class="stringliteral">" <table>%u</table>\n"</span>,
<a name="l00281"></a>00281 rule->r_table);
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_REALMS)
<a name="l00284"></a>00284 dp_dump_line(p, line++, <span class="stringliteral">" <realms>%u</realms>\n"</span>,
<a name="l00285"></a>00285 rule->r_realms);
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_MARK)
<a name="l00288"></a>00288 dp_dump_line(p, line++, <span class="stringliteral">" <mark>%"</span> PRIx64 <span class="stringliteral">"</mark>\n"</span>,
<a name="l00289"></a>00289 rule->r_mark);
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DSFIELD)
<a name="l00292"></a>00292 dp_dump_line(p, line++, <span class="stringliteral">" <dsfield>%u</dsfield>\n"</span>,
<a name="l00293"></a>00293 rule->r_dsfield);
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_TYPE)
<a name="l00296"></a>00296 dp_dump_line(p, line++, <span class="stringliteral">"<type>%s</type>\n"</span>,
<a name="l00297"></a>00297 nl_rtntype2str(rule->r_type, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRCMAP)
<a name="l00300"></a>00300 dp_dump_line(p, line++, <span class="stringliteral">"<srcmap>%s</srcmap>\n"</span>,
<a name="l00301"></a>00301 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(rule->r_srcmap, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00302"></a>00302
<a name="l00303"></a>00303 dp_dump_line(p, line++, <span class="stringliteral">"</rule>\n"</span>);
<a name="l00304"></a>00304
<a name="l00305"></a>00305 <span class="keywordflow">return</span> line;
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_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="l00309"></a>00309 {
<a name="l00310"></a>00310 <span class="keyword">struct </span>rtnl_rule *rule = (<span class="keyword">struct </span>rtnl_rule *) obj;
<a name="l00311"></a>00311 <span class="keywordtype">char</span> buf[128];
<a name="l00312"></a>00312 <span class="keywordtype">int</span> line = 0;
<a name="l00313"></a>00313
<a name="l00314"></a>00314 dp_dump_line(p, line++, <span class="stringliteral">"RULE_PRIORITY=%u\n"</span>,
<a name="l00315"></a>00315 rule->r_prio);
<a name="l00316"></a>00316 dp_dump_line(p, line++, <span class="stringliteral">"RULE_FAMILY=%s\n"</span>,
<a name="l00317"></a>00317 nl_af2str(rule->r_family, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00318"></a>00318
<a name="l00319"></a>00319 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DST)
<a name="l00320"></a>00320 dp_dump_line(p, line++, <span class="stringliteral">"RULE_DST=%s\n"</span>,
<a name="l00321"></a>00321 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(rule->r_dst, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00322"></a>00322
<a name="l00323"></a>00323 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DST_LEN)
<a name="l00324"></a>00324 dp_dump_line(p, line++, <span class="stringliteral">"RULE_DSTLEN=%u\n"</span>,
<a name="l00325"></a>00325 rule->r_dst_len);
<a name="l00326"></a>00326
<a name="l00327"></a>00327 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRC)
<a name="l00328"></a>00328 dp_dump_line(p, line++, <span class="stringliteral">"RULE_SRC=%s\n"</span>,
<a name="l00329"></a>00329 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(rule->r_src, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00330"></a>00330
<a name="l00331"></a>00331 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRC_LEN)
<a name="l00332"></a>00332 dp_dump_line(p, line++, <span class="stringliteral">"RULE_SRCLEN=%u\n"</span>,
<a name="l00333"></a>00333 rule->r_src_len);
<a name="l00334"></a>00334
<a name="l00335"></a>00335 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_IIF)
<a name="l00336"></a>00336 dp_dump_line(p, line++, <span class="stringliteral">"RULE_IIF=%s\n"</span>, rule->r_iif);
<a name="l00337"></a>00337
<a name="l00338"></a>00338 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_TABLE)
<a name="l00339"></a>00339 dp_dump_line(p, line++, <span class="stringliteral">"RULE_TABLE=%u\n"</span>,
<a name="l00340"></a>00340 rule->r_table);
<a name="l00341"></a>00341
<a name="l00342"></a>00342 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_REALMS)
<a name="l00343"></a>00343 dp_dump_line(p, line++, <span class="stringliteral">"RULE_REALM=%u\n"</span>,
<a name="l00344"></a>00344 rule->r_realms);
<a name="l00345"></a>00345
<a name="l00346"></a>00346 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_MARK)
<a name="l00347"></a>00347 dp_dump_line(p, line++, <span class="stringliteral">"RULE_MARK=0x%"</span> PRIx64 <span class="stringliteral">"\n"</span>,
<a name="l00348"></a>00348 rule->r_mark);
<a name="l00349"></a>00349
<a name="l00350"></a>00350 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DSFIELD)
<a name="l00351"></a>00351 dp_dump_line(p, line++, <span class="stringliteral">"RULE_DSFIELD=%u\n"</span>,
<a name="l00352"></a>00352 rule->r_dsfield);
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_TYPE)
<a name="l00355"></a>00355 dp_dump_line(p, line++, <span class="stringliteral">"RULE_TYPE=%s\n"</span>,
<a name="l00356"></a>00356 nl_rtntype2str(rule->r_type, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00357"></a>00357
<a name="l00358"></a>00358 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRCMAP)
<a name="l00359"></a>00359 dp_dump_line(p, line++, <span class="stringliteral">"RULE_SRCMAP=%s\n"</span>,
<a name="l00360"></a>00360 <a class="code" href="group__addr.html#ga6471f04b9fa8ef1d4af1bf2b87b49529" title="Convert abstract address object to character string.">nl_addr2str</a>(rule->r_srcmap, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00361"></a>00361
<a name="l00362"></a>00362 <span class="keywordflow">return</span> line;
<a name="l00363"></a>00363 }
<a name="l00364"></a>00364
<a name="l00365"></a>00365 <span class="keyword">static</span> <span class="keywordtype">int</span> rule_compare(<span class="keyword">struct</span> nl_object *_a, <span class="keyword">struct</span> nl_object *_b,
<a name="l00366"></a>00366 uint32_t attrs, <span class="keywordtype">int</span> flags)
<a name="l00367"></a>00367 {
<a name="l00368"></a>00368 <span class="keyword">struct </span>rtnl_rule *a = (<span class="keyword">struct </span>rtnl_rule *) _a;
<a name="l00369"></a>00369 <span class="keyword">struct </span>rtnl_rule *b = (<span class="keyword">struct </span>rtnl_rule *) _b;
<a name="l00370"></a>00370 <span class="keywordtype">int</span> diff = 0;
<a name="l00371"></a>00371
<a name="l00372"></a>00372 <span class="preprocessor">#define RULE_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, RULE_ATTR_##ATTR, a, b, EXPR)</span>
<a name="l00373"></a>00373 <span class="preprocessor"></span>
<a name="l00374"></a>00374 diff |= RULE_DIFF(FAMILY, a->r_family != b->r_family);
<a name="l00375"></a>00375 diff |= RULE_DIFF(TABLE, a->r_table != b->r_table);
<a name="l00376"></a>00376 diff |= RULE_DIFF(REALMS, a->r_realms != b->r_realms);
<a name="l00377"></a>00377 diff |= RULE_DIFF(DSFIELD, a->r_dsfield != b->r_dsfield);
<a name="l00378"></a>00378 diff |= RULE_DIFF(TYPE, a->r_type != b->r_type);
<a name="l00379"></a>00379 diff |= RULE_DIFF(PRIO, a->r_prio != b->r_prio);
<a name="l00380"></a>00380 diff |= RULE_DIFF(MARK, a->r_mark != b->r_mark);
<a name="l00381"></a>00381 diff |= RULE_DIFF(SRC_LEN, a->r_src_len != b->r_src_len);
<a name="l00382"></a>00382 diff |= RULE_DIFF(DST_LEN, a->r_dst_len != b->r_dst_len);
<a name="l00383"></a>00383 diff |= RULE_DIFF(SRC, <a class="code" href="group__addr.html#ga3b85d180a4f6d2df86be1dc8798a7d9a" title="Compares two abstract address objects.">nl_addr_cmp</a>(a->r_src, b->r_src));
<a name="l00384"></a>00384 diff |= RULE_DIFF(DST, <a class="code" href="group__addr.html#ga3b85d180a4f6d2df86be1dc8798a7d9a" title="Compares two abstract address objects.">nl_addr_cmp</a>(a->r_dst, b->r_dst));
<a name="l00385"></a>00385 diff |= RULE_DIFF(IIF, strcmp(a->r_iif, b->r_iif));
<a name="l00386"></a>00386
<a name="l00387"></a>00387 <span class="preprocessor">#undef RULE_DIFF</span>
<a name="l00388"></a>00388 <span class="preprocessor"></span>
<a name="l00389"></a>00389 <span class="keywordflow">return</span> diff;
<a name="l00390"></a>00390 }
<a name="l00391"></a>00391
<a name="l00392"></a>00392 <span class="keyword">static</span> <span class="keyword">struct </span>trans_tbl rule_attrs[] = {
<a name="l00393"></a>00393 __ADD(RULE_ATTR_FAMILY, family)
<a name="l00394"></a>00394 __ADD(RULE_ATTR_PRIO, prio)
<a name="l00395"></a>00395 __ADD(RULE_ATTR_MARK, mark)
<a name="l00396"></a>00396 __ADD(RULE_ATTR_IIF, iif)
<a name="l00397"></a>00397 __ADD(RULE_ATTR_REALMS, realms)
<a name="l00398"></a>00398 __ADD(RULE_ATTR_SRC, src)
<a name="l00399"></a>00399 __ADD(RULE_ATTR_DST, dst)
<a name="l00400"></a>00400 __ADD(RULE_ATTR_DSFIELD, dsfield)
<a name="l00401"></a>00401 __ADD(RULE_ATTR_TABLE, table)
<a name="l00402"></a>00402 __ADD(RULE_ATTR_TYPE, type)
<a name="l00403"></a>00403 __ADD(RULE_ATTR_SRC_LEN, src_len)
<a name="l00404"></a>00404 __ADD(RULE_ATTR_DST_LEN, dst_len)
<a name="l00405"></a>00405 __ADD(RULE_ATTR_SRCMAP, srcmap)
<a name="l00406"></a>00406 };
<a name="l00407"></a>00407
<a name="l00408"></a>00408 static <span class="keywordtype">char</span> *rule_attrs2str(<span class="keywordtype">int</span> attrs, <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> len)
<a name="l00409"></a>00409 {
<a name="l00410"></a>00410 <span class="keywordflow">return</span> __flags2str(attrs, buf, len, rule_attrs,
<a name="l00411"></a>00411 ARRAY_SIZE(rule_attrs));
<a name="l00412"></a>00412 }
<a name="l00413"></a>00413 <span class="comment"></span>
<a name="l00414"></a>00414 <span class="comment">/**</span>
<a name="l00415"></a>00415 <span class="comment"> * @name Allocation/Freeing</span>
<a name="l00416"></a>00416 <span class="comment"> * @{</span>
<a name="l00417"></a>00417 <span class="comment"> */</span>
<a name="l00418"></a>00418
<a name="l00419"></a>00419 <span class="keyword">struct </span>rtnl_rule *rtnl_rule_alloc(<span class="keywordtype">void</span>)
<a name="l00420"></a>00420 {
<a name="l00421"></a>00421 <span class="keywordflow">return</span> (<span class="keyword">struct</span> rtnl_rule *) <a class="code" href="group__object.html#ga9c1f2fd887d8325839f452879cdf982a" title="Allocate a new object of kind specified by the operations handle.">nl_object_alloc</a>(&rule_obj_ops);
<a name="l00422"></a>00422 }
<a name="l00423"></a>00423
<a name="l00424"></a>00424 <span class="keywordtype">void</span> rtnl_rule_put(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00425"></a>00425 {
<a name="l00426"></a>00426 <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 *) rule);
<a name="l00427"></a>00427 }
<a name="l00428"></a>00428 <span class="comment"></span>
<a name="l00429"></a>00429 <span class="comment">/** @} */</span>
<a name="l00430"></a>00430 <span class="comment"></span>
<a name="l00431"></a>00431 <span class="comment">/**</span>
<a name="l00432"></a>00432 <span class="comment"> * @name Cache Management</span>
<a name="l00433"></a>00433 <span class="comment"> * @{</span>
<a name="l00434"></a>00434 <span class="comment"> */</span>
<a name="l00435"></a>00435 <span class="comment"></span>
<a name="l00436"></a>00436 <span class="comment">/**</span>
<a name="l00437"></a>00437 <span class="comment"> * Build a rule cache including all rules of the specified family currently configured in the kernel.</span>
<a name="l00438"></a>00438 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00439"></a>00439 <span class="comment"> * @arg family address family</span>
<a name="l00440"></a>00440 <span class="comment"> *</span>
<a name="l00441"></a>00441 <span class="comment"> * Allocates a new rule cache, initializes it properly and updates it</span>
<a name="l00442"></a>00442 <span class="comment"> * to include all rules of the specified address family currently</span>
<a name="l00443"></a>00443 <span class="comment"> * configured in the kernel.</span>
<a name="l00444"></a>00444 <span class="comment"> *</span>
<a name="l00445"></a>00445 <span class="comment"> * @note The caller is responsible for destroying and freeing the</span>
<a name="l00446"></a>00446 <span class="comment"> * cache after using it. (nl_cache_destroy_and_free())</span>
<a name="l00447"></a>00447 <span class="comment"> * @return The new cache or NULL if an error occured.</span>
<a name="l00448"></a>00448 <span class="comment"> */</span>
<a name="l00449"></a><a class="code" href="group__rule.html#gaf2e171bde0c400fcdb5ddb1460b15ba3">00449</a> <span class="keyword">struct </span>nl_cache * <a class="code" href="group__rule.html#gaf2e171bde0c400fcdb5ddb1460b15ba3" title="Build a rule cache including all rules of the specified family currently configured in the kernel...">rtnl_rule_alloc_cache_by_family</a>(<span class="keyword">struct</span> nl_handle *handle,
<a name="l00450"></a>00450 <span class="keywordtype">int</span> family)
<a name="l00451"></a>00451 {
<a name="l00452"></a>00452 <span class="keyword">struct </span>nl_cache * cache;
<a name="l00453"></a>00453
<a name="l00454"></a>00454 cache = <a class="code" href="group__cache.html#ga9520ae0f2158db3c081f34c851d92252" title="Allocate an empty cache.">nl_cache_alloc</a>(&rtnl_rule_ops);
<a name="l00455"></a>00455 <span class="keywordflow">if</span> (cache == NULL)
<a name="l00456"></a>00456 <span class="keywordflow">return</span> NULL;
<a name="l00457"></a>00457
<a name="l00458"></a>00458 <span class="comment">/* XXX RULE_CACHE_FAMILY(cache) = family; */</span>
<a name="l00459"></a>00459
<a name="l00460"></a>00460 <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="l00461"></a>00461 free(cache);
<a name="l00462"></a>00462 <span class="keywordflow">return</span> NULL;
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464
<a name="l00465"></a>00465 <span class="keywordflow">return</span> cache;
<a name="l00466"></a>00466 }
<a name="l00467"></a>00467 <span class="comment"></span>
<a name="l00468"></a>00468 <span class="comment">/**</span>
<a name="l00469"></a>00469 <span class="comment"> * Build a rule cache including all rules currently configured in the kernel.</span>
<a name="l00470"></a>00470 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00471"></a>00471 <span class="comment"> *</span>
<a name="l00472"></a>00472 <span class="comment"> * Allocates a new rule cache, initializes it properly and updates it</span>
<a name="l00473"></a>00473 <span class="comment"> * to include all rules currently configured in the kernel.</span>
<a name="l00474"></a>00474 <span class="comment"> *</span>
<a name="l00475"></a>00475 <span class="comment"> * @note The caller is responsible for destroying and freeing the</span>
<a name="l00476"></a>00476 <span class="comment"> * cache after using it. (nl_cache_destroy_and_free())</span>
<a name="l00477"></a>00477 <span class="comment"> * @return The new cache or NULL if an error occured.</span>
<a name="l00478"></a>00478 <span class="comment"> */</span>
<a name="l00479"></a><a class="code" href="group__rule.html#gad76997d7b10a2b8a9d55663484e0d8e2">00479</a> <span class="keyword">struct </span>nl_cache * <a class="code" href="group__rule.html#gad76997d7b10a2b8a9d55663484e0d8e2" title="Build a rule cache including all rules currently configured in the kernel.">rtnl_rule_alloc_cache</a>(<span class="keyword">struct</span> nl_handle *handle)
<a name="l00480"></a>00480 {
<a name="l00481"></a>00481 <span class="keywordflow">return</span> <a class="code" href="group__rule.html#gaf2e171bde0c400fcdb5ddb1460b15ba3" title="Build a rule cache including all rules of the specified family currently configured in the kernel...">rtnl_rule_alloc_cache_by_family</a>(handle, AF_UNSPEC);
<a name="l00482"></a>00482 }
<a name="l00483"></a>00483 <span class="comment"></span>
<a name="l00484"></a>00484 <span class="comment">/** @} */</span>
<a name="l00485"></a>00485 <span class="comment"></span>
<a name="l00486"></a>00486 <span class="comment">/**</span>
<a name="l00487"></a>00487 <span class="comment"> * @name Rule Addition</span>
<a name="l00488"></a>00488 <span class="comment"> * @{</span>
<a name="l00489"></a>00489 <span class="comment"> */</span>
<a name="l00490"></a>00490
<a name="l00491"></a>00491 <span class="keyword">static</span> <span class="keyword">struct </span>nl_msg *build_rule_msg(<span class="keyword">struct</span> rtnl_rule *tmpl, <span class="keywordtype">int</span> cmd, <span class="keywordtype">int</span> flags)
<a name="l00492"></a>00492 {
<a name="l00493"></a>00493 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00494"></a>00494 <span class="keyword">struct </span>rtmsg rtm = {
<a name="l00495"></a>00495 .rtm_type = RTN_UNSPEC
<a name="l00496"></a>00496 };
<a name="l00497"></a>00497
<a name="l00498"></a>00498 <span class="keywordflow">if</span> (cmd == RTM_NEWRULE)
<a name="l00499"></a>00499 rtm.rtm_type = RTN_UNICAST;
<a name="l00500"></a>00500
<a name="l00501"></a>00501 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_FAMILY)
<a name="l00502"></a>00502 rtm.rtm_family = tmpl->r_family;
<a name="l00503"></a>00503
<a name="l00504"></a>00504 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_TABLE)
<a name="l00505"></a>00505 rtm.rtm_table = tmpl->r_table;
<a name="l00506"></a>00506
<a name="l00507"></a>00507 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_DSFIELD)
<a name="l00508"></a>00508 rtm.rtm_tos = tmpl->r_dsfield;
<a name="l00509"></a>00509
<a name="l00510"></a>00510 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_TYPE)
<a name="l00511"></a>00511 rtm.rtm_type = tmpl->r_type;
<a name="l00512"></a>00512
<a name="l00513"></a>00513 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_SRC_LEN)
<a name="l00514"></a>00514 rtm.rtm_src_len = tmpl->r_src_len;
<a name="l00515"></a>00515
<a name="l00516"></a>00516 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_DST_LEN)
<a name="l00517"></a>00517 rtm.rtm_dst_len = tmpl->r_dst_len;
<a name="l00518"></a>00518
<a name="l00519"></a>00519 msg = <a class="code" href="group__msg.html#ga580d8697d19050c55060bc10ab4eae9f" title="Allocate a new netlink message.">nlmsg_alloc_simple</a>(cmd, flags);
<a name="l00520"></a>00520 <span class="keywordflow">if</span> (!msg)
<a name="l00521"></a>00521 <span class="keywordflow">goto</span> nla_put_failure;
<a name="l00522"></a>00522
<a name="l00523"></a>00523 <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, &rtm, <span class="keyword">sizeof</span>(rtm), NLMSG_ALIGNTO) < 0)
<a name="l00524"></a>00524 <span class="keywordflow">goto</span> nla_put_failure;
<a name="l00525"></a>00525
<a name="l00526"></a>00526 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_SRC)
<a name="l00527"></a>00527 <a class="code" href="group__attr.html#ga34038d75b33942a151a0e91791629a76" title="Add a address attribute to a netlink message.">NLA_PUT_ADDR</a>(msg, RTA_SRC, tmpl->r_src);
<a name="l00528"></a>00528
<a name="l00529"></a>00529 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_DST)
<a name="l00530"></a>00530 <a class="code" href="group__attr.html#ga34038d75b33942a151a0e91791629a76" title="Add a address attribute to a netlink message.">NLA_PUT_ADDR</a>(msg, RTA_DST, tmpl->r_dst);
<a name="l00531"></a>00531
<a name="l00532"></a>00532 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_PRIO)
<a name="l00533"></a>00533 <a class="code" href="group__attr.html#ga61c87db4b2aa6c7b31e733d1ec684efb" title="Add a u32 netlink attribute to a netlink message.">NLA_PUT_U32</a>(msg, RTA_PRIORITY, tmpl->r_prio);
<a name="l00534"></a>00534
<a name="l00535"></a>00535 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_MARK)
<a name="l00536"></a>00536 <a class="code" href="group__attr.html#ga61c87db4b2aa6c7b31e733d1ec684efb" title="Add a u32 netlink attribute to a netlink message.">NLA_PUT_U32</a>(msg, RTA_PROTOINFO, tmpl->r_mark);
<a name="l00537"></a>00537
<a name="l00538"></a>00538 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_REALMS)
<a name="l00539"></a>00539 <a class="code" href="group__attr.html#ga61c87db4b2aa6c7b31e733d1ec684efb" title="Add a u32 netlink attribute to a netlink message.">NLA_PUT_U32</a>(msg, RTA_FLOW, tmpl->r_realms);
<a name="l00540"></a>00540
<a name="l00541"></a>00541 <span class="keywordflow">if</span> (tmpl->ce_mask & RULE_ATTR_IIF)
<a name="l00542"></a>00542 <a class="code" href="group__attr.html#ga7f2397f226e4561d195611572021b714" title="Add a character string netlink attribute to a netlink message.">NLA_PUT_STRING</a>(msg, RTA_IIF, tmpl->r_iif);
<a name="l00543"></a>00543
<a name="l00544"></a>00544 <span class="keywordflow">return</span> msg;
<a name="l00545"></a>00545
<a name="l00546"></a>00546 nla_put_failure:
<a name="l00547"></a>00547 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00548"></a>00548 <span class="keywordflow">return</span> NULL;
<a name="l00549"></a>00549 }
<a name="l00550"></a>00550 <span class="comment"></span>
<a name="l00551"></a>00551 <span class="comment">/**</span>
<a name="l00552"></a>00552 <span class="comment"> * Build netlink request message to add a new rule</span>
<a name="l00553"></a>00553 <span class="comment"> * @arg tmpl template with data of new rule</span>
<a name="l00554"></a>00554 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00555"></a>00555 <span class="comment"> *</span>
<a name="l00556"></a>00556 <span class="comment"> * Builds a new netlink message requesting a addition of a new</span>
<a name="l00557"></a>00557 <span class="comment"> * rule. The netlink message header isn't fully equipped with</span>
<a name="l00558"></a>00558 <span class="comment"> * all relevant fields and must thus be sent out via nl_send_auto_complete()</span>
<a name="l00559"></a>00559 <span class="comment"> * or supplemented as needed. \a tmpl must contain the attributes of the new</span>
<a name="l00560"></a>00560 <span class="comment"> * address set via \c rtnl_rule_set_* functions.</span>
<a name="l00561"></a>00561 <span class="comment"> * </span>
<a name="l00562"></a>00562 <span class="comment"> * @return The netlink message</span>
<a name="l00563"></a>00563 <span class="comment"> */</span>
<a name="l00564"></a><a class="code" href="group__rule.html#ga24b35124fa06cc0ac9f2fca375f8e509">00564</a> <span class="keyword">struct </span>nl_msg *<a class="code" href="group__rule.html#ga24b35124fa06cc0ac9f2fca375f8e509" title="Build netlink request message to add a new rule.">rtnl_rule_build_add_request</a>(<span class="keyword">struct</span> rtnl_rule *tmpl, <span class="keywordtype">int</span> flags)
<a name="l00565"></a>00565 {
<a name="l00566"></a>00566 <span class="keywordflow">return</span> build_rule_msg(tmpl, RTM_NEWRULE, <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="l00567"></a>00567 }
<a name="l00568"></a>00568 <span class="comment"></span>
<a name="l00569"></a>00569 <span class="comment">/**</span>
<a name="l00570"></a>00570 <span class="comment"> * Add a new rule</span>
<a name="l00571"></a>00571 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00572"></a>00572 <span class="comment"> * @arg tmpl template with requested changes</span>
<a name="l00573"></a>00573 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00574"></a>00574 <span class="comment"> *</span>
<a name="l00575"></a>00575 <span class="comment"> * Builds a netlink message by calling rtnl_rule_build_add_request(),</span>
<a name="l00576"></a>00576 <span class="comment"> * sends the request to the kernel and waits for the next ACK to be</span>
<a name="l00577"></a>00577 <span class="comment"> * received and thus blocks until the request has been fullfilled.</span>
<a name="l00578"></a>00578 <span class="comment"> *</span>
<a name="l00579"></a>00579 <span class="comment"> * @return 0 on sucess or a negative error if an error occured.</span>
<a name="l00580"></a>00580 <span class="comment"> */</span>
<a name="l00581"></a><a class="code" href="group__rule.html#ga8a9cbb02513beb0f5ba2b34d40a1fd2a">00581</a> <span class="keywordtype">int</span> <a class="code" href="group__rule.html#ga8a9cbb02513beb0f5ba2b34d40a1fd2a" title="Add a new rule.">rtnl_rule_add</a>(<span class="keyword">struct</span> nl_handle *handle, <span class="keyword">struct</span> rtnl_rule *tmpl, <span class="keywordtype">int</span> flags)
<a name="l00582"></a>00582 {
<a name="l00583"></a>00583 <span class="keywordtype">int</span> err;
<a name="l00584"></a>00584 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00585"></a>00585
<a name="l00586"></a>00586 msg = <a class="code" href="group__rule.html#ga24b35124fa06cc0ac9f2fca375f8e509" title="Build netlink request message to add a new rule.">rtnl_rule_build_add_request</a>(tmpl, flags);
<a name="l00587"></a>00587 <span class="keywordflow">if</span> (!msg)
<a name="l00588"></a>00588 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00589"></a>00589
<a name="l00590"></a>00590 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="l00591"></a>00591 <span class="keywordflow">if</span> (err < 0)
<a name="l00592"></a>00592 <span class="keywordflow">return</span> err;
<a name="l00593"></a>00593
<a name="l00594"></a>00594 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00595"></a>00595 <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="l00596"></a>00596 }
<a name="l00597"></a>00597 <span class="comment"></span>
<a name="l00598"></a>00598 <span class="comment">/** @} */</span>
<a name="l00599"></a>00599 <span class="comment"></span>
<a name="l00600"></a>00600 <span class="comment">/**</span>
<a name="l00601"></a>00601 <span class="comment"> * @name Rule Deletion</span>
<a name="l00602"></a>00602 <span class="comment"> * @{</span>
<a name="l00603"></a>00603 <span class="comment"> */</span>
<a name="l00604"></a>00604 <span class="comment"></span>
<a name="l00605"></a>00605 <span class="comment">/**</span>
<a name="l00606"></a>00606 <span class="comment"> * Build a netlink request message to delete a rule</span>
<a name="l00607"></a>00607 <span class="comment"> * @arg rule rule to delete</span>
<a name="l00608"></a>00608 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00609"></a>00609 <span class="comment"> *</span>
<a name="l00610"></a>00610 <span class="comment"> * Builds a new netlink message requesting a deletion of a rule.</span>
<a name="l00611"></a>00611 <span class="comment"> * The netlink message header isn't fully equipped with all relevant</span>
<a name="l00612"></a>00612 <span class="comment"> * fields and must thus be sent out via nl_send_auto_complete()</span>
<a name="l00613"></a>00613 <span class="comment"> * or supplemented as needed. \a rule must point to an existing</span>
<a name="l00614"></a>00614 <span class="comment"> * address.</span>
<a name="l00615"></a>00615 <span class="comment"> *</span>
<a name="l00616"></a>00616 <span class="comment"> * @return The netlink message</span>
<a name="l00617"></a>00617 <span class="comment"> */</span>
<a name="l00618"></a><a class="code" href="group__rule.html#ga5a864351f543588ebaa242631d44d8c5">00618</a> <span class="keyword">struct </span>nl_msg *<a class="code" href="group__rule.html#ga5a864351f543588ebaa242631d44d8c5" title="Build a netlink request message to delete a rule.">rtnl_rule_build_delete_request</a>(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> flags)
<a name="l00619"></a>00619 {
<a name="l00620"></a>00620 <span class="keywordflow">return</span> build_rule_msg(rule, RTM_DELRULE, flags);
<a name="l00621"></a>00621 }
<a name="l00622"></a>00622 <span class="comment"></span>
<a name="l00623"></a>00623 <span class="comment">/**</span>
<a name="l00624"></a>00624 <span class="comment"> * Delete a rule</span>
<a name="l00625"></a>00625 <span class="comment"> * @arg handle netlink handle</span>
<a name="l00626"></a>00626 <span class="comment"> * @arg rule rule to delete</span>
<a name="l00627"></a>00627 <span class="comment"> * @arg flags additional netlink message flags</span>
<a name="l00628"></a>00628 <span class="comment"> *</span>
<a name="l00629"></a>00629 <span class="comment"> * Builds a netlink message by calling rtnl_rule_build_delete_request(),</span>
<a name="l00630"></a>00630 <span class="comment"> * sends the request to the kernel and waits for the next ACK to be</span>
<a name="l00631"></a>00631 <span class="comment"> * received and thus blocks until the request has been fullfilled.</span>
<a name="l00632"></a>00632 <span class="comment"> *</span>
<a name="l00633"></a>00633 <span class="comment"> * @return 0 on sucess or a negative error if an error occured.</span>
<a name="l00634"></a>00634 <span class="comment"> */</span>
<a name="l00635"></a><a class="code" href="group__rule.html#ga0612d6316c026725baf828e5f78d94b1">00635</a> <span class="keywordtype">int</span> <a class="code" href="group__rule.html#ga0612d6316c026725baf828e5f78d94b1" title="Delete a rule.">rtnl_rule_delete</a>(<span class="keyword">struct</span> nl_handle *handle, <span class="keyword">struct</span> rtnl_rule *rule,
<a name="l00636"></a>00636 <span class="keywordtype">int</span> flags)
<a name="l00637"></a>00637 {
<a name="l00638"></a>00638 <span class="keywordtype">int</span> err;
<a name="l00639"></a>00639 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00640"></a>00640
<a name="l00641"></a>00641 msg = <a class="code" href="group__rule.html#ga5a864351f543588ebaa242631d44d8c5" title="Build a netlink request message to delete a rule.">rtnl_rule_build_delete_request</a>(rule, flags);
<a name="l00642"></a>00642 <span class="keywordflow">if</span> (!msg)
<a name="l00643"></a>00643 <span class="keywordflow">return</span> nl_errno(ENOMEM);
<a name="l00644"></a>00644
<a name="l00645"></a>00645 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="l00646"></a>00646 <span class="keywordflow">if</span> (err < 0)
<a name="l00647"></a>00647 <span class="keywordflow">return</span> err;
<a name="l00648"></a>00648
<a name="l00649"></a>00649 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00650"></a>00650 <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="l00651"></a>00651 }
<a name="l00652"></a>00652 <span class="comment"></span>
<a name="l00653"></a>00653 <span class="comment">/** @} */</span>
<a name="l00654"></a>00654 <span class="comment"></span>
<a name="l00655"></a>00655 <span class="comment">/**</span>
<a name="l00656"></a>00656 <span class="comment"> * @name Attribute Modification</span>
<a name="l00657"></a>00657 <span class="comment"> * @{</span>
<a name="l00658"></a>00658 <span class="comment"> */</span>
<a name="l00659"></a>00659
<a name="l00660"></a>00660 <span class="keywordtype">void</span> rtnl_rule_set_family(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> family)
<a name="l00661"></a>00661 {
<a name="l00662"></a>00662 rule->r_family = family;
<a name="l00663"></a>00663 rule->ce_mask |= RULE_ATTR_FAMILY;
<a name="l00664"></a>00664 }
<a name="l00665"></a>00665
<a name="l00666"></a>00666 <span class="keywordtype">int</span> rtnl_rule_get_family(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00667"></a>00667 {
<a name="l00668"></a>00668 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_FAMILY)
<a name="l00669"></a>00669 <span class="keywordflow">return</span> rule->r_family;
<a name="l00670"></a>00670 <span class="keywordflow">else</span>
<a name="l00671"></a>00671 <span class="keywordflow">return</span> AF_UNSPEC;
<a name="l00672"></a>00672 }
<a name="l00673"></a>00673
<a name="l00674"></a>00674 <span class="keywordtype">void</span> rtnl_rule_set_prio(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> prio)
<a name="l00675"></a>00675 {
<a name="l00676"></a>00676 rule->r_prio = prio;
<a name="l00677"></a>00677 rule->ce_mask |= RULE_ATTR_PRIO;
<a name="l00678"></a>00678 }
<a name="l00679"></a>00679
<a name="l00680"></a>00680 <span class="keywordtype">int</span> rtnl_rule_get_prio(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00681"></a>00681 {
<a name="l00682"></a>00682 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_PRIO)
<a name="l00683"></a>00683 <span class="keywordflow">return</span> rule->r_prio;
<a name="l00684"></a>00684 <span class="keywordflow">else</span>
<a name="l00685"></a>00685 <span class="keywordflow">return</span> -1;
<a name="l00686"></a>00686 }
<a name="l00687"></a>00687
<a name="l00688"></a>00688 <span class="keywordtype">void</span> rtnl_rule_set_mark(<span class="keyword">struct</span> rtnl_rule *rule, uint64_t mark)
<a name="l00689"></a>00689 {
<a name="l00690"></a>00690 rule->r_mark = mark;
<a name="l00691"></a>00691 rule->ce_mask |= RULE_ATTR_MARK;
<a name="l00692"></a>00692 }
<a name="l00693"></a>00693
<a name="l00694"></a>00694 uint64_t rtnl_rule_get_mark(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00695"></a>00695 {
<a name="l00696"></a>00696 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_MARK)
<a name="l00697"></a>00697 <span class="keywordflow">return</span> rule->r_mark;
<a name="l00698"></a>00698 <span class="keywordflow">else</span>
<a name="l00699"></a>00699 <span class="keywordflow">return</span> UINT_LEAST64_MAX;
<a name="l00700"></a>00700 }
<a name="l00701"></a>00701
<a name="l00702"></a>00702 <span class="keywordtype">void</span> rtnl_rule_set_table(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> table)
<a name="l00703"></a>00703 {
<a name="l00704"></a>00704 rule->r_table = table;
<a name="l00705"></a>00705 rule->ce_mask |= RULE_ATTR_TABLE;
<a name="l00706"></a>00706 }
<a name="l00707"></a>00707
<a name="l00708"></a>00708 <span class="keywordtype">int</span> rtnl_rule_get_table(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00709"></a>00709 {
<a name="l00710"></a>00710 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_TABLE)
<a name="l00711"></a>00711 <span class="keywordflow">return</span> rule->r_table;
<a name="l00712"></a>00712 <span class="keywordflow">else</span>
<a name="l00713"></a>00713 <span class="keywordflow">return</span> -1;
<a name="l00714"></a>00714 }
<a name="l00715"></a>00715
<a name="l00716"></a>00716 <span class="keywordtype">void</span> rtnl_rule_set_dsfield(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> dsfield)
<a name="l00717"></a>00717 {
<a name="l00718"></a>00718 rule->r_dsfield = dsfield;
<a name="l00719"></a>00719 rule->ce_mask |= RULE_ATTR_DSFIELD;
<a name="l00720"></a>00720 }
<a name="l00721"></a>00721
<a name="l00722"></a>00722 <span class="keywordtype">int</span> rtnl_rule_get_dsfield(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00723"></a>00723 {
<a name="l00724"></a>00724 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DSFIELD)
<a name="l00725"></a>00725 <span class="keywordflow">return</span> rule->r_dsfield;
<a name="l00726"></a>00726 <span class="keywordflow">else</span>
<a name="l00727"></a>00727 <span class="keywordflow">return</span> -1;
<a name="l00728"></a>00728 }
<a name="l00729"></a>00729
<a name="l00730"></a>00730 <span class="keywordtype">void</span> rtnl_rule_set_src_len(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> len)
<a name="l00731"></a>00731 {
<a name="l00732"></a>00732 rule->r_src_len = len;
<a name="l00733"></a>00733 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRC)
<a name="l00734"></a>00734 nl_addr_set_prefixlen(rule->r_src, len);
<a name="l00735"></a>00735 rule->ce_mask |= RULE_ATTR_SRC_LEN;
<a name="l00736"></a>00736 }
<a name="l00737"></a>00737
<a name="l00738"></a>00738 <span class="keywordtype">int</span> rtnl_rule_get_src_len(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00739"></a>00739 {
<a name="l00740"></a>00740 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRC_LEN)
<a name="l00741"></a>00741 <span class="keywordflow">return</span> rule->r_src_len;
<a name="l00742"></a>00742 <span class="keywordflow">else</span>
<a name="l00743"></a>00743 <span class="keywordflow">return</span> -1;
<a name="l00744"></a>00744 }
<a name="l00745"></a>00745
<a name="l00746"></a>00746 <span class="keywordtype">void</span> rtnl_rule_set_dst_len(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> len)
<a name="l00747"></a>00747 {
<a name="l00748"></a>00748 rule->r_dst_len = len;
<a name="l00749"></a>00749 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DST)
<a name="l00750"></a>00750 nl_addr_set_prefixlen(rule->r_dst, len);
<a name="l00751"></a>00751 rule->ce_mask |= RULE_ATTR_DST_LEN;
<a name="l00752"></a>00752 }
<a name="l00753"></a>00753
<a name="l00754"></a>00754 <span class="keywordtype">int</span> rtnl_rule_get_dst_len(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00755"></a>00755 {
<a name="l00756"></a>00756 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DST_LEN)
<a name="l00757"></a>00757 <span class="keywordflow">return</span> rule->r_dst_len;
<a name="l00758"></a>00758 <span class="keywordflow">else</span>
<a name="l00759"></a>00759 <span class="keywordflow">return</span> -1;
<a name="l00760"></a>00760 }
<a name="l00761"></a>00761
<a name="l00762"></a>00762 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> __assign_addr(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keyword">struct</span> nl_addr **pos,
<a name="l00763"></a>00763 <span class="keyword">struct</span> nl_addr *<span class="keyword">new</span>, uint8_t *len, <span class="keywordtype">int</span> flag)
<a name="l00764"></a>00764 {
<a name="l00765"></a>00765 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_FAMILY) {
<a name="l00766"></a>00766 <span class="keywordflow">if</span> (new->a_family != rule->r_family)
<a name="l00767"></a>00767 <span class="keywordflow">return</span> nl_error(EINVAL, <span class="stringliteral">"Address family mismatch"</span>);
<a name="l00768"></a>00768 } <span class="keywordflow">else</span>
<a name="l00769"></a>00769 rule->r_family = <span class="keyword">new</span>->a_family;
<a name="l00770"></a>00770
<a name="l00771"></a>00771 <span class="keywordflow">if</span> (*pos)
<a name="l00772"></a>00772 nl_addr_put(*pos);
<a name="l00773"></a>00773
<a name="l00774"></a>00774 nl_addr_get(<span class="keyword">new</span>);
<a name="l00775"></a>00775 *pos = <span class="keyword">new</span>;
<a name="l00776"></a>00776 *len = <a class="code" href="group__addr.html#gabaeaaa163f115fff9318424fc9bd304b" title="Get prefix length of abstract address object.">nl_addr_get_prefixlen</a>(<span class="keyword">new</span>);
<a name="l00777"></a>00777
<a name="l00778"></a>00778 rule->ce_mask |= (flag | RULE_ATTR_FAMILY);
<a name="l00779"></a>00779
<a name="l00780"></a>00780 <span class="keywordflow">return</span> 0;
<a name="l00781"></a>00781 }
<a name="l00782"></a>00782
<a name="l00783"></a>00783 <span class="keywordtype">int</span> rtnl_rule_set_src(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keyword">struct</span> nl_addr *src)
<a name="l00784"></a>00784 {
<a name="l00785"></a>00785 <span class="keywordflow">return</span> __assign_addr(rule, &rule->r_src, src, &rule->r_src_len,
<a name="l00786"></a>00786 RULE_ATTR_SRC | RULE_ATTR_SRC_LEN);
<a name="l00787"></a>00787 }
<a name="l00788"></a>00788
<a name="l00789"></a>00789 <span class="keyword">struct </span>nl_addr *rtnl_rule_get_src(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00790"></a>00790 {
<a name="l00791"></a>00791 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_SRC)
<a name="l00792"></a>00792 <span class="keywordflow">return</span> rule->r_src;
<a name="l00793"></a>00793 <span class="keywordflow">else</span>
<a name="l00794"></a>00794 <span class="keywordflow">return</span> NULL;
<a name="l00795"></a>00795 }
<a name="l00796"></a>00796
<a name="l00797"></a>00797 <span class="keywordtype">int</span> rtnl_rule_set_dst(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keyword">struct</span> nl_addr *dst)
<a name="l00798"></a>00798 {
<a name="l00799"></a>00799 <span class="keywordflow">return</span> __assign_addr(rule, &rule->r_dst, dst, &rule->r_dst_len,
<a name="l00800"></a>00800 RULE_ATTR_DST | RULE_ATTR_DST_LEN);
<a name="l00801"></a>00801 }
<a name="l00802"></a>00802
<a name="l00803"></a>00803 <span class="keyword">struct </span>nl_addr *rtnl_rule_get_dst(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00804"></a>00804 {
<a name="l00805"></a>00805 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_DST)
<a name="l00806"></a>00806 <span class="keywordflow">return</span> rule->r_dst;
<a name="l00807"></a>00807 <span class="keywordflow">else</span>
<a name="l00808"></a>00808 <span class="keywordflow">return</span> NULL;
<a name="l00809"></a>00809 }
<a name="l00810"></a>00810
<a name="l00811"></a>00811 <span class="keywordtype">int</span> rtnl_rule_set_iif(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keyword">const</span> <span class="keywordtype">char</span> *dev)
<a name="l00812"></a>00812 {
<a name="l00813"></a>00813 <span class="keywordflow">if</span> (strlen(dev) > IFNAMSIZ-1)
<a name="l00814"></a>00814 <span class="keywordflow">return</span> nl_errno(ERANGE);
<a name="l00815"></a>00815
<a name="l00816"></a>00816 strcpy(rule->r_iif, dev);
<a name="l00817"></a>00817 rule->ce_mask |= RULE_ATTR_IIF;
<a name="l00818"></a>00818 <span class="keywordflow">return</span> 0;
<a name="l00819"></a>00819 }
<a name="l00820"></a>00820
<a name="l00821"></a>00821 <span class="keywordtype">char</span> *rtnl_rule_get_iif(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00822"></a>00822 {
<a name="l00823"></a>00823 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_IIF)
<a name="l00824"></a>00824 <span class="keywordflow">return</span> rule->r_iif;
<a name="l00825"></a>00825 <span class="keywordflow">else</span>
<a name="l00826"></a>00826 <span class="keywordflow">return</span> NULL;
<a name="l00827"></a>00827 }
<a name="l00828"></a>00828
<a name="l00829"></a>00829 <span class="keywordtype">void</span> rtnl_rule_set_action(<span class="keyword">struct</span> rtnl_rule *rule, <span class="keywordtype">int</span> type)
<a name="l00830"></a>00830 {
<a name="l00831"></a>00831 rule->r_type = type;
<a name="l00832"></a>00832 rule->ce_mask |= RULE_ATTR_TYPE;
<a name="l00833"></a>00833 }
<a name="l00834"></a>00834
<a name="l00835"></a>00835 <span class="keywordtype">int</span> rtnl_rule_get_action(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00836"></a>00836 {
<a name="l00837"></a>00837 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_TYPE)
<a name="l00838"></a>00838 <span class="keywordflow">return</span> rule->r_type;
<a name="l00839"></a>00839 <span class="keywordflow">else</span>
<a name="l00840"></a>00840 <span class="keywordflow">return</span> nl_errno(ENOENT);
<a name="l00841"></a>00841 }
<a name="l00842"></a>00842
<a name="l00843"></a>00843 <span class="keywordtype">void</span> rtnl_rule_set_realms(<span class="keyword">struct</span> rtnl_rule *rule, realm_t realms)
<a name="l00844"></a>00844 {
<a name="l00845"></a>00845 rule->r_realms = realms;
<a name="l00846"></a>00846 rule->ce_mask |= RULE_ATTR_REALMS;
<a name="l00847"></a>00847 }
<a name="l00848"></a>00848
<a name="l00849"></a>00849 realm_t rtnl_rule_get_realms(<span class="keyword">struct</span> rtnl_rule *rule)
<a name="l00850"></a>00850 {
<a name="l00851"></a>00851 <span class="keywordflow">if</span> (rule->ce_mask & RULE_ATTR_REALMS)
<a name="l00852"></a>00852 <span class="keywordflow">return</span> rule->r_realms;
<a name="l00853"></a>00853 <span class="keywordflow">else</span>
<a name="l00854"></a>00854 <span class="keywordflow">return</span> 0;
<a name="l00855"></a>00855 }
<a name="l00856"></a>00856 <span class="comment"></span>
<a name="l00857"></a>00857 <span class="comment">/** @} */</span>
<a name="l00858"></a>00858
<a name="l00859"></a>00859 <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> rule_obj_ops = {
<a name="l00860"></a>00860 .<a class="code" href="structnl__object__ops.html#a5225584343fe711642303e000b036ee9" title="Unique name of object type.">oo_name</a> = <span class="stringliteral">"route/rule"</span>,
<a name="l00861"></a>00861 .oo_size = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>rtnl_rule),
<a name="l00862"></a>00862 .oo_free_data = rule_free_data,
<a name="l00863"></a>00863 .oo_clone = rule_clone,
<a name="l00864"></a>00864 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a5597887c080d5ecae358b6065a4048fd" title="Dump object in a brief one-liner.">NL_DUMP_BRIEF</a>] = rule_dump_brief,
<a name="l00865"></a>00865 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a1445106c7af529b2c99ee289fbcd3179" title="Dump all attributes but no statistics.">NL_DUMP_FULL</a>] = rule_dump_full,
<a name="l00866"></a>00866 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a8ebedc55094df6175b84fb1230047a65" title="Dump all attributes including statistics.">NL_DUMP_STATS</a>] = rule_dump_stats,
<a name="l00867"></a>00867 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9aa5b83654e99e53423c39b0d6e835d768" title="Dump all attribtes in XML format.">NL_DUMP_XML</a>] = rule_dump_xml,
<a name="l00868"></a>00868 .oo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a7178b29f7f68857970540f2d1dabbaf1" title="Dump all attribtues as env variables.">NL_DUMP_ENV</a>] = rule_dump_env,
<a name="l00869"></a>00869 .oo_compare = rule_compare,
<a name="l00870"></a>00870 .oo_attrs2str = rule_attrs2str,
<a name="l00871"></a>00871 .oo_id_attrs = ~0,
<a name="l00872"></a>00872 };
<a name="l00873"></a>00873
<a name="l00874"></a>00874 <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_rule_ops = {
<a name="l00875"></a>00875 .co_name = <span class="stringliteral">"route/rule"</span>,
<a name="l00876"></a>00876 .co_hdrsize = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>rtmsg),
<a name="l00877"></a>00877 .co_msgtypes = {
<a name="l00878"></a>00878 { RTM_NEWRULE, NL_ACT_NEW, <span class="stringliteral">"new"</span> },
<a name="l00879"></a>00879 { RTM_DELRULE, NL_ACT_DEL, <span class="stringliteral">"del"</span> },
<a name="l00880"></a>00880 { RTM_GETRULE, NL_ACT_GET, <span class="stringliteral">"get"</span> },
<a name="l00881"></a>00881 END_OF_MSGTYPES_LIST,
<a name="l00882"></a>00882 },
<a name="l00883"></a>00883 .co_protocol = NETLINK_ROUTE,
<a name="l00884"></a>00884 .co_request_update = rule_request_update,
<a name="l00885"></a>00885 .co_msg_parser = rule_msg_parser,
<a name="l00886"></a>00886 .co_obj_ops = &rule_obj_ops,
<a name="l00887"></a>00887 };
<a name="l00888"></a>00888
<a name="l00889"></a>00889 <span class="keyword">static</span> <span class="keywordtype">void</span> __init rule_init(<span class="keywordtype">void</span>)
<a name="l00890"></a>00890 {
<a name="l00891"></a>00891 <a class="code" href="group__cache__mngt.html#ga390eeb1fa61634cf1c216792c6df63c3" title="Register a set of cache operations.">nl_cache_mngt_register</a>(&rtnl_rule_ops);
<a name="l00892"></a>00892 }
<a name="l00893"></a>00893
<a name="l00894"></a>00894 <span class="keyword">static</span> <span class="keywordtype">void</span> __exit rule_exit(<span class="keywordtype">void</span>)
<a name="l00895"></a>00895 {
<a name="l00896"></a>00896 <a class="code" href="group__cache__mngt.html#ga09f56b767b3868b7e0cf8559863dde77" title="Unregister a set of cache operations.">nl_cache_mngt_unregister</a>(&rtnl_rule_ops);
<a name="l00897"></a>00897 }
<a name="l00898"></a>00898 <span class="comment"></span>
<a name="l00899"></a>00899 <span class="comment">/** @} */</span>
</pre></div></div>
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