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<h1>IPAnnounce.cc</h1><a href="IPAnnounce_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 2006 Baylor University</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 <<a class="code" href="dtn-config_8h.html">dtn-config.h</a>></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">#include <oasys/util/OptParser.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="BundleDaemon_8h.html">bundling/BundleDaemon.h</a>"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="IPAnnounce_8h.html">IPAnnounce.h</a>"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="IPConvergenceLayerUtils_8h.html">conv_layers/IPConvergenceLayerUtils.h</a>"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="TCPConvergenceLayer_8h.html">conv_layers/TCPConvergenceLayer.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="UDPConvergenceLayer_8h.html">conv_layers/UDPConvergenceLayer.h</a>"</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="keyword">namespace </span>dtn {
<a name="l00029"></a>00029
<a name="l00030"></a><a class="code" href="classdtn_1_1IPAnnounce.html#d04e297f085fbc58df13db9d22a32ba8">00030</a> <a class="code" href="classdtn_1_1IPAnnounce.html#d04e297f085fbc58df13db9d22a32ba8" title="Constructor.">IPAnnounce::IPAnnounce</a>()
<a name="l00031"></a>00031 : cl_addr_(INADDR_ANY), cl_port_(<a class="code" href="classdtn_1_1TCPConvergenceLayer.html" title="The TCP Convergence Layer.">TCPConvergenceLayer</a>::TCPCL_DEFAULT_PORT)
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 }
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keywordtype">bool</span>
<a name="l00036"></a><a class="code" href="classdtn_1_1IPAnnounce.html#106a39fc2f3e9aa2bc69e66644706223">00036</a> <a class="code" href="classdtn_1_1IPAnnounce.html#106a39fc2f3e9aa2bc69e66644706223" title="Deserialize parameters for configuration.">IPAnnounce::configure</a>(<span class="keyword">const</span> std::string& name, <a class="code" href="classdtn_1_1ConvergenceLayer.html" title="The abstract interface for a convergence layer.">ConvergenceLayer</a>* cl,
<a name="l00037"></a>00037 <span class="keywordtype">int</span> argc, <span class="keyword">const</span> <span class="keywordtype">char</span>* argv[])
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 <span class="keywordflow">if</span> (cl == NULL) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <a class="code" href="classdtn_1_1Announce.html#65066d3cb11b61adc07b9440e337f269" title="CL represented by this Announce.">cl_</a> = cl;
<a name="l00042"></a>00042 <a class="code" href="classdtn_1_1Announce.html#1acf55ea37c38026a963a8a7ab5f5063" title="name for this beacon instance">name_</a> = name;
<a name="l00043"></a>00043 <a class="code" href="classdtn_1_1Announce.html#7dfeaeaf96b1904c710bdb09a7a52c3f" title="pulled from cl_">type_</a>.assign(cl-><a class="code" href="classdtn_1_1ConvergenceLayer.html#1030bc8bf5d5ca898fad2433e30e44cf" title="Accessor for the convergence layer name.">name</a>());
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="comment">// validate convergence layer details</span>
<a name="l00046"></a>00046 <span class="keywordflow">if</span> (strncmp(<a class="code" href="classdtn_1_1Announce.html#65066d3cb11b61adc07b9440e337f269" title="CL represented by this Announce.">cl_</a>-><a class="code" href="classdtn_1_1ConvergenceLayer.html#1030bc8bf5d5ca898fad2433e30e44cf" title="Accessor for the convergence layer name.">name</a>(),<span class="stringliteral">"tcp"</span>,3) != 0 &&
<a name="l00047"></a>00047 strncmp(<a class="code" href="classdtn_1_1Announce.html#65066d3cb11b61adc07b9440e337f269" title="CL represented by this Announce.">cl_</a>-><a class="code" href="classdtn_1_1ConvergenceLayer.html#1030bc8bf5d5ca898fad2433e30e44cf" title="Accessor for the convergence layer name.">name</a>(),<span class="stringliteral">"udp"</span>,3) != 0)
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 log_err(<span class="stringliteral">"ip announce does not support cl type %s"</span>,
<a name="l00050"></a>00050 <a class="code" href="classdtn_1_1Announce.html#65066d3cb11b61adc07b9440e337f269" title="CL represented by this Announce.">cl_</a>-><a class="code" href="classdtn_1_1ConvergenceLayer.html#1030bc8bf5d5ca898fad2433e30e44cf" title="Accessor for the convergence layer name.">name</a>());
<a name="l00051"></a>00051 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="comment">// parse the options</span>
<a name="l00055"></a>00055 oasys::OptParser p;
<a name="l00056"></a>00056 p.addopt(<span class="keyword">new</span> oasys::InAddrOpt(<span class="stringliteral">"cl_addr"</span>,&<a class="code" href="classdtn_1_1IPAnnounce.html#c84088b9a9431310dd28e49beec0e9d2" title="next hop info for CL to be advertised">cl_addr_</a>));
<a name="l00057"></a>00057 p.addopt(<span class="keyword">new</span> oasys::UInt16Opt(<span class="stringliteral">"cl_port"</span>,&<a class="code" href="classdtn_1_1IPAnnounce.html#31a9868de818e01a3044f9e88161b37c">cl_port_</a>));
<a name="l00058"></a>00058 p.addopt(<span class="keyword">new</span> oasys::UIntOpt(<span class="stringliteral">"interval"</span>,&<a class="code" href="classdtn_1_1Announce.html#e81359675347762ba29a3f9ea9968cc4" title="interval (in milliseconds) for beacon header">interval_</a>));
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keyword">const</span> <span class="keywordtype">char</span>* invalid;
<a name="l00061"></a>00061 <span class="keywordflow">if</span> (! p.parse(argc, argv, &invalid))
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 log_err(<span class="stringliteral">"bad parameter %s"</span>,invalid);
<a name="l00064"></a>00064 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1Announce.html#e81359675347762ba29a3f9ea9968cc4" title="interval (in milliseconds) for beacon header">interval_</a> == 0)
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 log_err(<span class="stringliteral">"interval must be greater than 0"</span>);
<a name="l00070"></a>00070 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">// convert from seconds to ms</span>
<a name="l00074"></a>00074 <a class="code" href="classdtn_1_1Announce.html#e81359675347762ba29a3f9ea9968cc4" title="interval (in milliseconds) for beacon header">interval_</a> *= 1000;
<a name="l00075"></a>00075
<a name="l00076"></a>00076 oasys::StringBuffer <a class="code" href="num2sdnv_8c.html#a81cdcc7ff6987bc85c073253e32715f">buf</a>(<span class="stringliteral">"%s:%d"</span>,intoa(<a class="code" href="classdtn_1_1IPAnnounce.html#c84088b9a9431310dd28e49beec0e9d2" title="next hop info for CL to be advertised">cl_addr_</a>),<a class="code" href="classdtn_1_1IPAnnounce.html#31a9868de818e01a3044f9e88161b37c">cl_port_</a>);
<a name="l00077"></a>00077 <a class="code" href="classdtn_1_1Announce.html#e0381b20267e347d8ef914a1931e5e28" title="Beacon info to advertise.">local_</a>.assign(buf.c_str());
<a name="l00078"></a>00078 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordtype">size_t</span>
<a name="l00082"></a><a class="code" href="classdtn_1_1IPAnnounce.html#479164ae808ee96bfd3c288c9182d4df">00082</a> <a class="code" href="classdtn_1_1IPAnnounce.html#479164ae808ee96bfd3c288c9182d4df" title="Serialize announcement out to buffer.">IPAnnounce::format_advertisement</a>(u_char* bp, <span class="keywordtype">size_t</span> <a class="code" href="num2sdnv_8c.html#fed088663f8704004425cdae2120b9b3">len</a>)
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <a class="code" href="classdtn_1_1EndpointID.html">EndpointID</a> local(BundleDaemon::instance()->local_eid());
<a name="l00085"></a>00085 <span class="keywordtype">size_t</span> length = <a class="code" href="Announce_8h.html#10fb10f052238243f08749f41a8374a6">FOUR_BYTE_ALIGN</a>(local.<a class="code" href="classdtn_1_1EndpointID.html#3ed7639ed8794ea8045bb5d16128c5f5">length</a>() + <span class="keyword">sizeof</span>(<a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html" title="On-the-wire (radio, whatever) representation of IP address family&#39;s advertisement...">DiscoveryHeader</a>));
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordflow">if</span> (len <= length)
<a name="l00088"></a>00088 <span class="keywordflow">return</span> 0;
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html" title="On-the-wire (radio, whatever) representation of IP address family&#39;s advertisement...">DiscoveryHeader</a>* hdr = (<a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html" title="On-the-wire (radio, whatever) representation of IP address family&#39;s advertisement...">DiscoveryHeader</a>*) bp;
<a name="l00091"></a>00091 memset(hdr,0,len);
<a name="l00092"></a>00092
<a name="l00093"></a>00093 hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#9038613d6cdfb09f1abe18e512624e03">cl_type</a> = <a class="code" href="classdtn_1_1IPDiscovery.html#f3bcef2eded36d54a1411992bebc058c">IPDiscovery::str_to_type</a>(<a class="code" href="classdtn_1_1Announce.html#ace9d8bfc9824adb417ee56f3935e652" title="Which type of CL is represented by this Announce.">type</a>().c_str());
<a name="l00094"></a>00094 hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#43234f76fc915ca6c1487a90d9e3cdfd">interval</a> = <a class="code" href="classdtn_1_1Announce.html#e81359675347762ba29a3f9ea9968cc4" title="interval (in milliseconds) for beacon header">interval_</a> / 100;
<a name="l00095"></a>00095 hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#3ebbf90531b836a4974bf7c0740da562">length</a> = htons(length);
<a name="l00096"></a>00096 hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#35de104df839eade0f32f51efe1be229">inet_addr</a> = <a class="code" href="classdtn_1_1IPAnnounce.html#c84088b9a9431310dd28e49beec0e9d2" title="next hop info for CL to be advertised">cl_addr_</a>;
<a name="l00097"></a>00097 hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#1d4742f553c05c6d2da14befb570ea88">inet_port</a> = htons(<a class="code" href="classdtn_1_1IPAnnounce.html#31a9868de818e01a3044f9e88161b37c">cl_port_</a>);
<a name="l00098"></a>00098 hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#95d0c82c7bce1701f8d5ff423a24e09a">name_len</a> = htons(local.<a class="code" href="classdtn_1_1EndpointID.html#3ed7639ed8794ea8045bb5d16128c5f5">length</a>());
<a name="l00099"></a>00099
<a name="l00100"></a>00100 memcpy(hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#537203fa7f52f4a19fa473cfac838fd4">sender_name</a>,local.<a class="code" href="classdtn_1_1EndpointID.html#c9d8a72806359621f4d2850c1e78269c">c_str</a>(),local.<a class="code" href="classdtn_1_1EndpointID.html#3ed7639ed8794ea8045bb5d16128c5f5">length</a>());<a class="code" href="namespacedtnsim.html#372b0bd474085f20b38efbbade7ce72a" title="Override gettimeofday to return the simulator time."></a>
<a name="l00101"></a>00101 <a class="code" href="namespacedtnsim.html#372b0bd474085f20b38efbbade7ce72a" title="Override gettimeofday to return the simulator time."> ::gettimeofday</a>(&<a class="code" href="classdtn_1_1Announce.html#25191d7733447aa55b2c092d61f6af35" title="mark each time data is sent">data_sent_</a>,0);
<a name="l00102"></a>00102 <span class="keywordflow">return</span> length;
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 } <span class="comment">// dtn</span>
</pre></div></div>
<hr size="1"><address style="text-align: right;"><small>Generated on Fri Jan 30 09:26:57 2009 for DTN Reference Implementation by
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