<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>DTN Reference Implementation: IPAnnounce.cc Source File</title> <link href="doxygen.css" rel="stylesheet" type="text/css"> <link href="tabs.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.6 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="main.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <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> IPAnnounce::configure(<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#32a40fc26bb8c14a9dc8ebee32150e12">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#77f320b3585d19dcadcb48f2ec61c8d0">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#0f116d9dcd8bda3dc04ef39289472616">length</a> = htons(length); <a name="l00096"></a>00096 hdr-><a class="code" href="structdtn_1_1IPDiscovery_1_1DiscoveryHeader.html#c5a98cccac5ccd9d4643cc1cd93d67f5">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#54865d9ae240388f13b78dc74f8ae26f">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#f0b39f36e48f357726218ac7d88e3343">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#37420e481d125d89aaef220b3b906e3d">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 Mon Jul 21 14:09:45 2008 for DTN Reference Implementation by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address> </body> </html>