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libdtn-devel-2.6.0-2mdv2009.1.i586.rpm

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<h1>EthernetScheme.cc</h1><a href="EthernetScheme_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001  <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> *    Copyright 2004-2006 Intel Corporation</span>
<a name="l00003"></a>00003 <span class="comment"> * </span>
<a name="l00004"></a>00004 <span class="comment"> *    Licensed under the Apache License, Version 2.0 (the "License");</span>
<a name="l00005"></a>00005 <span class="comment"> *    you may not use this file except in compliance with the License.</span>
<a name="l00006"></a>00006 <span class="comment"> *    You may obtain a copy of the License at</span>
<a name="l00007"></a>00007 <span class="comment"> * </span>
<a name="l00008"></a>00008 <span class="comment"> *        http://www.apache.org/licenses/LICENSE-2.0</span>
<a name="l00009"></a>00009 <span class="comment"> * </span>
<a name="l00010"></a>00010 <span class="comment"> *    Unless required by applicable law or agreed to in writing, software</span>
<a name="l00011"></a>00011 <span class="comment"> *    distributed under the License is distributed on an "AS IS" BASIS,</span>
<a name="l00012"></a>00012 <span class="comment"> *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<a name="l00013"></a>00013 <span class="comment"> *    See the License for the specific language governing permissions and</span>
<a name="l00014"></a>00014 <span class="comment"> *    limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment"> */</span>
<a name="l00016"></a>00016 
<a name="l00017"></a>00017 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;<a class="code" href="dtn-config_8h.html">dtn-config.h</a>&gt;</span>
<a name="l00019"></a>00019 <span class="preprocessor">#endif</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#ifdef __linux__</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;oasys/io/IPSocket.h&gt;</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;oasys/io/NetUtils.h&gt;</span>
<a name="l00025"></a>00025 
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="EthernetScheme_8h.html">EthernetScheme.h</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="EndpointID_8h.html">EndpointID.h</a>"</span>
<a name="l00028"></a>00028 
<a name="l00029"></a>00029 <span class="keyword">namespace </span>dtn {
<a name="l00030"></a>00030 
<a name="l00031"></a>00031 <span class="keyword">template</span> &lt;&gt;
<a name="l00032"></a>00032 EthernetScheme* oasys::Singleton&lt;EthernetScheme&gt;::instance_ = 0;
<a name="l00033"></a>00033 
<a name="l00034"></a>00034 <span class="comment">/*</span>
<a name="l00035"></a>00035 <span class="comment"> * Parse out an ethernet address from the ssp.</span>
<a name="l00036"></a>00036 <span class="comment"> *</span>
<a name="l00037"></a>00037 <span class="comment"> * @return true if the string is a valid ethernet address, false if not.</span>
<a name="l00038"></a>00038 <span class="comment"> */</span>
<a name="l00039"></a>00039 <span class="keywordtype">bool</span>
<a name="l00040"></a>00040 EthernetScheme::parse(<span class="keyword">const</span> std::string&amp; ssp, eth_addr_t* addr)
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042     <span class="comment">// XXX/jakob - for now, assume it's a correctly formatted ethernet URI</span>
<a name="l00043"></a>00043     <span class="comment">// eth://00:01:02:03:04:05 or eth:00:01:02:03:04:05</span>
<a name="l00044"></a>00044 
<a name="l00045"></a>00045     <span class="keyword">const</span> <span class="keywordtype">char</span>* str = ssp.c_str();
<a name="l00046"></a>00046     <span class="keywordflow">if</span> (str[0] == <span class="charliteral">'/'</span> &amp;&amp; str[1] == <span class="charliteral">'/'</span>) {
<a name="l00047"></a>00047         str = str + 2;
<a name="l00048"></a>00048     }
<a name="l00049"></a>00049     
<a name="l00050"></a>00050     <span class="comment">// this is a nasty hack. grab the ethernet address out of there,</span>
<a name="l00051"></a>00051     <span class="comment">// assuming everything is correct</span>
<a name="l00052"></a>00052     <span class="keywordtype">int</span> r = sscanf(str, <span class="stringliteral">"%2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx"</span>,
<a name="l00053"></a>00053                    &amp;addr-&gt;octet[0],
<a name="l00054"></a>00054                    &amp;addr-&gt;octet[1],
<a name="l00055"></a>00055                    &amp;addr-&gt;octet[2],
<a name="l00056"></a>00056                    &amp;addr-&gt;octet[3],
<a name="l00057"></a>00057                    &amp;addr-&gt;octet[4],
<a name="l00058"></a>00058                    &amp;addr-&gt;octet[5]);
<a name="l00059"></a>00059     <span class="keywordflow">if</span> (r != 6) {
<a name="l00060"></a>00060         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00061"></a>00061     }
<a name="l00062"></a>00062 
<a name="l00063"></a>00063     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 
<a name="l00073"></a>00073 <span class="keywordtype">bool</span>
<a name="l00074"></a>00074 EthernetScheme::validate(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#0b3883e065c5b300f2581971eee1c009">URI</a>&amp; uri, <span class="keywordtype">bool</span> is_pattern)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076     (void)is_pattern;
<a name="l00077"></a>00077     
<a name="l00078"></a>00078     <span class="comment">// make sure it's a valid url</span>
<a name="l00079"></a>00079     eth_addr_t addr;
<a name="l00080"></a>00080     <span class="keywordflow">return</span> parse(uri.ssp(), &amp;addr);
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082 
<a name="l00088"></a>00088 <span class="keywordtype">bool</span>
<a name="l00089"></a>00089 EthernetScheme::match(<span class="keyword">const</span> EndpointIDPattern&amp; <a class="code" href="dtnperf-client_8c.html#71808395b2460b32d8b1048e44faef6e">pattern</a>,
<a name="l00090"></a>00090                       <span class="keyword">const</span> EndpointID&amp; eid)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092     <span class="comment">// sanity check</span>
<a name="l00093"></a>00093     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(pattern.scheme() == <span class="keyword">this</span>);
<a name="l00094"></a>00094     
<a name="l00095"></a>00095     log_debug_p(<span class="stringliteral">"/dtn/scheme/ethernet"</span>,
<a name="l00096"></a>00096                 <span class="stringliteral">"matching %s against %s."</span>, pattern.ssp().c_str(), eid.ssp().c_str());
<a name="l00097"></a>00097 
<a name="l00098"></a>00098     <span class="keywordtype">size_t</span> patternlen = pattern.ssp().length();
<a name="l00099"></a>00099     
<a name="l00100"></a>00100     <span class="keywordflow">if</span> (pattern.ssp() == eid.ssp()) 
<a name="l00101"></a>00101         <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00102"></a>00102     
<a name="l00103"></a>00103     <span class="keywordflow">if</span> (patternlen &gt;= 1 &amp;&amp; pattern.ssp()[patternlen-1] == <span class="charliteral">'*'</span>) {
<a name="l00104"></a>00104         patternlen--;
<a name="l00105"></a>00105         
<a name="l00106"></a>00106         <span class="keywordflow">if</span> (pattern.ssp().substr(0, patternlen) ==
<a name="l00107"></a>00107             eid.ssp().substr(0, patternlen))
<a name="l00108"></a>00108         {
<a name="l00109"></a>00109             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00110"></a>00110         }
<a name="l00111"></a>00111     }
<a name="l00112"></a>00112 
<a name="l00113"></a>00113     <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 
<a name="l00116"></a>00116 <a class="code" href="classdtn_1_1EndpointID.html#43d537f639ac64ca9b401701dae46f28" title="Typedef for the return value possibilities from is_singleton.">EndpointID::singleton_info_t</a>
<a name="l00117"></a>00117 EthernetScheme::is_singleton(<span class="keyword">const</span> <a class="code" href="namespacedtn.html#0b3883e065c5b300f2581971eee1c009">URI</a>&amp; uri)
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119     (void)uri;
<a name="l00120"></a>00120     <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1EndpointID.html#43d537f639ac64ca9b401701dae46f287fc9114949151beb443fe5b9b92eac2d">EndpointID::SINGLETON</a>;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 
<a name="l00123"></a>00123 <span class="keywordtype">char</span>* 
<a name="l00124"></a>00124 EthernetScheme::to_string(u_int8_t* addr, <span class="keywordtype">char</span>* outstring)
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126     sprintf(outstring,<span class="stringliteral">"eth://%02X:%02X:%02X:%02X:%02X:%02X"</span>, 
<a name="l00127"></a>00127             addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
<a name="l00128"></a>00128     
<a name="l00129"></a>00129     <span class="keywordflow">return</span> outstring;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 
<a name="l00132"></a>00132 
<a name="l00133"></a>00133 } <span class="comment">// namespace dtn</span>
<a name="l00134"></a>00134 
<a name="l00135"></a>00135 <span class="preprocessor">#endif </span><span class="comment">/* __linux__ */</span>
</pre></div></div>
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