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<h1>TcaController.cc</h1><a href="TcaController_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 2005-2006 University of Waterloo</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="comment">//#include <stdio.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <unistd.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <errno.h></span>
<a name="l00024"></a>00024 <span class="comment">//#include <strings.h></span>
<a name="l00025"></a>00025 <span class="comment">//#include <stdlib.h></span>
<a name="l00026"></a>00026 <span class="comment">//#include <sys/time.h></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="comment">//#include <string></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="dtn__api_8h.html">dtn_api.h</a>"</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include "<a class="code" href="TcaController_8h.html">TcaController.h</a>"</span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032
<a name="l00033"></a><a class="code" href="TcaController_8cc.html#656b8d50e4036b8ae51663e47beea58d">00033</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="dtnmoteproxy_8c.html#ae6a9b084de32dbd181692c52c5e97de">debug</a> = 1;
<a name="l00034"></a>00034
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="comment">// RECV_TIMEOUT can be made very large. It's just used as a timeout for a</span>
<a name="l00037"></a>00037 <span class="comment">// blocking function call to receive bundle.</span>
<a name="l00038"></a><a class="code" href="TcaController_8cc.html#69d60431ca35112c6c1da6ea76f2cc98">00038</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="TcaController_8cc.html#69d60431ca35112c6c1da6ea76f2cc98">RECV_TIMEOUT</a> = 30000; <span class="comment">// 30s</span>
<a name="l00039"></a>00039
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="comment">// REG_EXPIRATION_TIME is how long the registration lasts. We want it to</span>
<a name="l00042"></a>00042 <span class="comment">// last forever, but we're up against maxint.</span>
<a name="l00043"></a>00043 <span class="comment">// The value specified here is multiplied by 1000 in class Registration</span>
<a name="l00044"></a>00044 <span class="comment">// to get milliseconds, and I think that deeper in the actual timer code it's</span>
<a name="l00045"></a>00045 <span class="comment">// converted to a signed int, so 2000000 (23 days) is about as high as we</span>
<a name="l00046"></a>00046 <span class="comment">// can go here.</span>
<a name="l00047"></a><a class="code" href="TcaController_8cc.html#419256ea01e9e4997facfc078798441e">00047</a> <span class="keyword">static</span> <span class="keyword">const</span> u_int32_t <a class="code" href="TcaController_8cc.html#419256ea01e9e4997facfc078798441e">REG_EXPIRATION_TIME</a> = 2000000;
<a name="l00048"></a>00048
<a name="l00049"></a>00049
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="comment">// Fake spec constructor. For conveniently building a dtn_bundle_spec_t</span>
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keywordtype">bool</span>
<a name="l00054"></a><a class="code" href="TcaController_8cc.html#ac9fc2d8009fcf76a55975090be35659">00054</a> <a class="code" href="TcaController_8cc.html#ac9fc2d8009fcf76a55975090be35659">make_spec</a>(<a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00055"></a>00055 std::string source,
<a name="l00056"></a>00056 std::string dest,
<a name="l00057"></a>00057 std::string replyto,
<a name="l00058"></a>00058 <span class="keywordtype">int</span> <a class="code" href="dtncat_8c.html#d6057e40387509de502bdc91007d3238">expiration</a>,
<a name="l00059"></a>00059 <a class="code" href="dtn__types_8h.html#993858e35739619750a07d5dc1c275e0" title="Bundle priority specifier.">dtn_bundle_priority_t</a> <a class="code" href="dtnsend_8cc.html#4ba3115667f04372a659752ad557db6c">priority</a> = <a class="code" href="dtn__types_8h.html#993858e35739619750a07d5dc1c275e0f5a0479d0c742791ecd3827d8bf82bfc">COS_NORMAL</a>,
<a name="l00060"></a>00060 <a class="code" href="dtn__types_8h.html#ed7af5cc4e44a2ced1acdee4e441f000" title="Bundle delivery option flags.">dtn_bundle_delivery_opts_t</a> dopts = <a class="code" href="dtn__types_8h.html#ed7af5cc4e44a2ced1acdee4e441f000cb6b7eb0422ee4f6c87a4c1dd3cecee5">DOPTS_NONE</a>
<a name="l00061"></a>00061 )
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 memset(&spec, 0, <span class="keyword">sizeof</span>(spec));
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordflow">if</span> (<a class="code" href="dtn__api_8c.html#055c8bb8eaa570aacbe6a164ff123c84" title="Parse a string into an endpoint id structure, validating that it is in fact a valid...">dtn_parse_eid_string</a>(&spec.<a class="code" href="structdtn__bundle__spec__t.html#3e0a3530457d11bea38b06d00dea30fa">source</a>, source.c_str()))
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 fprintf(stderr, <span class="stringliteral">"make_spec: invalid source eid '%s'\n"</span>,
<a name="l00068"></a>00068 source.c_str());
<a name="l00069"></a>00069 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="keywordflow">if</span> (<a class="code" href="dtn__api_8c.html#055c8bb8eaa570aacbe6a164ff123c84" title="Parse a string into an endpoint id structure, validating that it is in fact a valid...">dtn_parse_eid_string</a>(&spec.<a class="code" href="structdtn__bundle__spec__t.html#8c2816b3ce9b92489b3b34c325a4cb4c">dest</a>, dest.c_str()))
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 fprintf(stderr, <span class="stringliteral">"make_spec: invalid dest eid '%s'\n"</span>,
<a name="l00075"></a>00075 dest.c_str());
<a name="l00076"></a>00076 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (<a class="code" href="dtn__api_8c.html#055c8bb8eaa570aacbe6a164ff123c84" title="Parse a string into an endpoint id structure, validating that it is in fact a valid...">dtn_parse_eid_string</a>(&spec.<a class="code" href="structdtn__bundle__spec__t.html#f76b43d28b76b155d48df0abe82c6913">replyto</a>, replyto.c_str()))
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 fprintf(stderr, <span class="stringliteral">"make_spec: invalid replyto eid '%s'\n"</span>,
<a name="l00082"></a>00082 replyto.c_str());
<a name="l00083"></a>00083 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00086"></a>00086 spec.<a class="code" href="structdtn__bundle__spec__t.html#f44519876b50a9f0b0eb242bea1ed158">priority</a> = <a class="code" href="dtnsend_8cc.html#4ba3115667f04372a659752ad557db6c">priority</a>;
<a name="l00087"></a>00087 spec.<a class="code" href="structdtn__bundle__spec__t.html#476482803410f3a19b40cbff91e1e56c">dopts</a> = dopts;
<a name="l00088"></a>00088 spec.<a class="code" href="structdtn__bundle__spec__t.html#57f2d6068db6a5b38a73416ea721e814">expiration</a> = expiration;
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keyword">static</span> <span class="keywordtype">bool</span>
<a name="l00095"></a><a class="code" href="TcaController_8cc.html#be1dd7bb182d86b3fdeacecf9131770f">00095</a> <a class="code" href="TcaController_8cc.html#be1dd7bb182d86b3fdeacecf9131770f">check_nargs</a>(<span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb, uint n_expected)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 <span class="keywordflow">if</span> (cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>.size() != n_expected)
<a name="l00098"></a>00098 {
<a name="l00099"></a>00099 printf(<span class="stringliteral">"TcaController: bundle '%s' contains wrong number of args. "</span>
<a name="l00100"></a>00100 <span class="stringliteral">"%d expected.\n"</span>, cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#1b2e25e28170e7aea10c86c4319b2b9a">str</a>().c_str(), n_expected);
<a name="l00101"></a>00101 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106
<a name="l00107"></a><a class="code" href="classTcaController.html#bf3f7acd6d1845417b013c65cb13ceee">00107</a> <a class="code" href="classTcaController.html#bf3f7acd6d1845417b013c65cb13ceee">TcaController::TcaController</a>(<a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8">TcaController::Role</a> <a class="code" href="tca__admin_8cc.html#61a55e29b77f88331554bca442ce7cd8">role</a>,
<a name="l00108"></a>00108 <span class="keyword">const</span> std::string& <a class="code" href="tca__admin_8cc.html#e26b9e69c0e6369f50ebaf8dceed7d7d">link_id</a>,
<a name="l00109"></a>00109 <span class="keyword">const</span> std::string& <a class="code" href="tca__admin_8cc.html#5983f9d6181f4bb1f4ba67adb3e9cf5c">ask_addr</a>,
<a name="l00110"></a>00110 <span class="keyword">const</span> std::string& adv_str,
<a name="l00111"></a>00111 <span class="keywordtype">int</span> <a class="code" href="tca__admin_8cc.html#b4a945b027f5da413185040e54fca502">registry_ttl</a>, <span class="keywordtype">int</span> <a class="code" href="tca__admin_8cc.html#2f2aa12f5485607ff7a108bb619f3340">control_ttl</a>)
<a name="l00112"></a>00112 : role_(role), link_id_(link_id),
<a name="l00113"></a>00113 ask_addr_(ask_addr), adv_str_(adv_str),
<a name="l00114"></a>00114 registry_ttl_(registry_ttl), control_ttl_(control_ttl)
<a name="l00115"></a>00115
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119
<a name="l00120"></a>00120
<a name="l00121"></a><a class="code" href="classTcaController.html#f74afd5d1080ed3bbb235e8e40dadfda">00121</a> <a class="code" href="classTcaController.html#f74afd5d1080ed3bbb235e8e40dadfda">TcaController::~TcaController</a>()
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 <a class="code" href="dtn__api_8c.html#887c16260463d6057bf5b03a1ff0e224" title="Close an open dtn handle.">dtn_close</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>);
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keywordtype">bool</span>
<a name="l00128"></a><a class="code" href="classTcaController.html#8880346db628c5dd35ce3d34a790af2a">00128</a> <a class="code" href="classTcaController.html#8880346db628c5dd35ce3d34a790af2a">TcaController::dtn_reg</a>(<a class="code" href="structdtn__endpoint__id__t.html" title="Specification of a dtn endpoint id, i.e.">dtn_endpoint_id_t</a>& eid, <a class="code" href="dtn__types_8h.html#d9378ff6ab7ee699568e037a8105f9b6" title="A registration cookie.">dtn_reg_id_t</a>& <span class="keywordtype">id</span>)
<a name="l00129"></a>00129 {
<a name="l00130"></a>00130 <span class="comment">// register eid for specified app, eg. "tca://hail/admin"</span>
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="comment">// create a new registration</span>
<a name="l00133"></a>00133 <a class="code" href="structdtn__reg__info__t.html" title="Registration state.">dtn_reg_info_t</a> reginfo;
<a name="l00134"></a>00134 <span class="comment">// dtn_reg_id_t regid;</span>
<a name="l00135"></a>00135 <span class="keywordtype">int</span> ret;
<a name="l00136"></a>00136
<a name="l00137"></a>00137 memset(&reginfo, 0, <span class="keyword">sizeof</span>(reginfo));
<a name="l00138"></a>00138 <a class="code" href="dtn__api_8c.html#b2935a9a7f4ade630f7d2ad1fec5c615" title="Copy the contents of one eid into another.">dtn_copy_eid</a>(&reginfo.<a class="code" href="structdtn__reg__info__t.html#07df1822e2808b2127710a8b54acd07f">endpoint</a>, &eid);
<a name="l00139"></a>00139 reginfo.<a class="code" href="structdtn__reg__info__t.html#7bf2e33b713b585bfe1792c40fa8cd6c">flags</a> = <a class="code" href="dtn__types_8h.html#a6d0071f396dd4ef85f6ad6332e37f00d21fdf39ccc69d6790aec0c70ce5f972">DTN_REG_DEFER</a>;
<a name="l00140"></a>00140 reginfo.<a class="code" href="structdtn__reg__info__t.html#6909a69cc63e748899cf4f9fe8c8901a">regid</a> = <a class="code" href="dtn__types_8h.html#f96cd9cebfff24e37ccececf05ebb4e6" title="Value for an unspecified registration cookie (i.e.">DTN_REGID_NONE</a>;
<a name="l00141"></a>00141 reginfo.<a class="code" href="structdtn__reg__info__t.html#dd4b3b0c9f27a0375369f35e33be686d">expiration</a> = <a class="code" href="TcaController_8cc.html#419256ea01e9e4997facfc078798441e">REG_EXPIRATION_TIME</a>;
<a name="l00142"></a>00142 <span class="keywordflow">if</span> ((ret = <a class="code" href="dtn__api_8c.html#7384bf592d4aff0892ff948aafa98b0c" title="Create a dtn registration.">dtn_register</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>, &reginfo, &<span class="keywordtype">id</span>)) != 0) {
<a name="l00143"></a>00143 fprintf(stderr, <span class="stringliteral">"error creating registration: %d (%s)\n"</span>,
<a name="l00144"></a>00144 ret, <a class="code" href="dtn__errno_8c.html#1b23d549407e59e3ce2a1c32e3885b1d" title="Get a string value associated with the dtn error code.">dtn_strerror</a>(<a class="code" href="dtn__api_8c.html#6183d81d5f742d13e1fdee26423d94b4" title="Get the error associated with the given handle.">dtn_errno</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>)));
<a name="l00145"></a>00145 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147 <span class="comment">// if (debug) printf("dtn_register succeeded, id 0x%x\n", id);</span>
<a name="l00148"></a>00148
<a name="l00149"></a>00149 printf(<span class="stringliteral">"TcaController::dtn_reg: app registered as %s, id=0x%x\n"</span>,
<a name="l00150"></a>00150 eid.<a class="code" href="structdtn__endpoint__id__t.html#d2e7d5788ae778c77b4041f1f8b1dc80">uri</a>, <span class="keywordtype">id</span>);
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="keywordtype">bool</span>
<a name="l00157"></a><a class="code" href="classTcaController.html#25e94a9aa364d764abc3081899ccc68a">00157</a> <a class="code" href="classTcaController.html#25e94a9aa364d764abc3081899ccc68a">TcaController::init</a>(<span class="keywordtype">bool</span> <a class="code" href="tca__admin_8cc.html#04b41ab4fff58f9fe3e097839f18b5d5">tidy</a>)
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 <span class="comment">// open the ipc handle</span>
<a name="l00160"></a>00160 <span class="keywordtype">int</span> err = <a class="code" href="dtn__api_8c.html#3afc66b2e2c75fae07a45467df9f74e9" title="Open a new connection to the router.">dtn_open</a>(&<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>);
<a name="l00161"></a>00161 <span class="keywordflow">if</span> (err != <a class="code" href="dtn__errno_8h.html#3723251cb5d056b6ace3e22561da1e11" title="DTN API error codes.">DTN_SUCCESS</a>) {
<a name="l00162"></a>00162 fprintf(stderr, <span class="stringliteral">"fatal error opening dtn handle: %s\n"</span>,
<a name="l00163"></a>00163 <a class="code" href="dtn__errno_8c.html#1b23d549407e59e3ce2a1c32e3885b1d" title="Get a string value associated with the dtn error code.">dtn_strerror</a>(err));
<a name="l00164"></a>00164 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00167"></a>00167 printf(<span class="stringliteral">"TcaController::init: dtn_open succeeded\n"</span>);
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="comment">// build local eid and register it:</span>
<a name="l00170"></a>00170 <a class="code" href="dtn__types_8h.html#d9378ff6ab7ee699568e037a8105f9b6" title="A registration cookie.">dtn_reg_id_t</a> app_id;
<a name="l00171"></a>00171 <a class="code" href="dtn__api_8c.html#0947b9119c69984edf25df43ead8858b" title="Build an appropriate local endpoint id by appending the specified service tag to...">dtn_build_local_eid</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>, &<a class="code" href="classTcaController.html#7cf3bdaa873e2f9364e2d8ae494917b0">local_eid_</a>, <span class="stringliteral">"/admin"</span>);
<a name="l00172"></a>00172 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#8880346db628c5dd35ce3d34a790af2a">dtn_reg</a>(<a class="code" href="classTcaController.html#7cf3bdaa873e2f9364e2d8ae494917b0">local_eid_</a>, app_id)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="comment">/*</span>
<a name="l00175"></a>00175 <span class="comment"> // test: register another eid and make sure that works</span>
<a name="l00176"></a>00176 <span class="comment"> dtn_reg_id_t test_id;</span>
<a name="l00177"></a>00177 <span class="comment"> dtn_endpoint_id_t test_eid;</span>
<a name="l00178"></a>00178 <span class="comment"> dtn_build_local_eid(handle_, &test_eid, "/testing123");</span>
<a name="l00179"></a>00179 <span class="comment"> if (!dtn_reg(test_eid, test_id)) return false;</span>
<a name="l00180"></a>00180 <span class="comment"> */</span>
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="comment">// discard any pending bundles iff 'tidy' option specified</span>
<a name="l00183"></a>00183 <span class="keywordflow">if</span> (tidy) <a class="code" href="classTcaController.html#76c47ed1b44f6520c02aa75c23818ddb">eat_bundles</a>();
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#5fe13558c0fd6b677ea3351c7db7c7a9">role_</a> == <a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8bc4e9e3265e93fd4f9484c8f615672d3">TCA_GATEWAY</a>)
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 <span class="comment">// now initialize the list of live registry nodes</span>
<a name="l00188"></a>00188 <a class="code" href="classTcaController.html#675bc13bb46386a123747e8ef9758c11">registry_</a>.<a class="code" href="classTcaRegistry.html#21873416b1875b3e7a0d0fcfd7b17920">init_nodes</a>();
<a name="l00189"></a>00189 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#675bc13bb46386a123747e8ef9758c11">registry_</a>.<a class="code" href="classTcaRegistry.html#bd88a1e563fbd1313c0a0352ef402f5a">init_addrs</a>())
<a name="l00190"></a>00190 {
<a name="l00191"></a>00191 <span class="comment">// This is an unrecoverable failure condition -- no dht nodes</span>
<a name="l00192"></a>00192 <span class="comment">// available. The gateway will not be able to do its job,</span>
<a name="l00193"></a>00193 <span class="comment">// so we might as well exit().</span>
<a name="l00194"></a>00194 fprintf(stderr,
<a name="l00195"></a>00195 <span class="stringliteral">"TcaController fatal error: no registry nodes available!\n"</span>);
<a name="l00196"></a>00196 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199
<a name="l00200"></a>00200 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <span class="keywordtype">void</span>
<a name="l00205"></a><a class="code" href="classTcaController.html#673694fa6d554a187086d0b88df007ed">00205</a> <a class="code" href="classTcaController.html#673694fa6d554a187086d0b88df007ed">TcaController::run</a>()
<a name="l00206"></a>00206 {
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#b9de59674cd29facb48c60c60f999e1c">ask_addr_</a>.length() != 0)
<a name="l00209"></a>00209 {
<a name="l00210"></a>00210 <span class="comment">// user has specified an ask address. Send out an ask bundle.</span>
<a name="l00211"></a>00211 <a class="code" href="classTcaController.html#aa71a7f87d04fa4882a822784095d7c2">ask</a>(<a class="code" href="classTcaController.html#b9de59674cd29facb48c60c60f999e1c">ask_addr_</a>);
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a> spec;
<a name="l00215"></a>00215 std::string payload;
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordflow">for</span> (;;)
<a name="l00218"></a>00218 {
<a name="l00219"></a>00219 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#ef574d237daad310d9e9fb0eed5c36eb">recv_bundle</a>(spec, payload, <a class="code" href="TcaController_8cc.html#69d60431ca35112c6c1da6ea76f2cc98">RECV_TIMEOUT</a>))
<a name="l00220"></a>00220 {
<a name="l00221"></a>00221 <a class="code" href="classTcaController.html#10d65a95cd5c4de5873d84c499392df9">handle_bundle_received</a>(spec, payload);
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="keywordtype">bool</span>
<a name="l00228"></a><a class="code" href="classTcaController.html#10d65a95cd5c4de5873d84c499392df9">00228</a> <a class="code" href="classTcaController.html#10d65a95cd5c4de5873d84c499392df9">TcaController::handle_bundle_received</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00229"></a>00229 <span class="keyword">const</span> std::string& payload)
<a name="l00230"></a>00230 {
<a name="l00231"></a>00231 <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a> cb(payload);
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="comment">// handle control bundles:</span>
<a name="l00234"></a>00234 <span class="keywordflow">switch</span> (cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#ef38f45e597543dac728bf5a2ad73c5e">type_</a>)
<a name="l00235"></a>00235 {
<a name="l00236"></a>00236 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe45ae6f3b5df45282221b975c9c05a794f">dtn::TcaControlBundle::CB_LINK_ANNOUNCE</a>:
<a name="l00237"></a>00237 <a class="code" href="classTcaController.html#d2028ffc6742625ab9148b59dbe50ac7">handle_link_announce</a>(spec, cb);
<a name="l00238"></a>00238 <span class="keywordflow">break</span>;
<a name="l00239"></a>00239 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe43185d178bf8db68c292c5df0f17430f9">dtn::TcaControlBundle::CB_ASK</a>:
<a name="l00240"></a>00240 <a class="code" href="classTcaController.html#7975eedcd985c76937e963a2ec822f43">handle_ask</a>(spec, cb);
<a name="l00241"></a>00241 <span class="keywordflow">break</span>;
<a name="l00242"></a>00242 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe48f29a6c82d5630d9f296dc16b86d04b9">dtn::TcaControlBundle::CB_ASK_RECEIVED</a>:
<a name="l00243"></a>00243 <a class="code" href="classTcaController.html#4d1fb0d176f54ca19c175dc312817b2f">handle_ask_received</a>(spec, cb);
<a name="l00244"></a>00244 <span class="keywordflow">break</span>;
<a name="l00245"></a>00245 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe43b57fb4ba85b73f6a4491be6303bdd7f">dtn::TcaControlBundle::CB_ASK_SENT</a>:
<a name="l00246"></a>00246 <a class="code" href="classTcaController.html#b342df9e3f1c8a6f787254906166bdd3">handle_ask_sent</a>(spec, cb);
<a name="l00247"></a>00247 <span class="keywordflow">break</span>;
<a name="l00248"></a>00248 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe48d9f3d18024e2507f45f9e22a1490aef">dtn::TcaControlBundle::CB_ADV</a>:
<a name="l00249"></a>00249 <a class="code" href="classTcaController.html#0fc2190e80788f924c5c6e7519ddda79">handle_adv</a>(spec, cb);
<a name="l00250"></a>00250 <span class="keywordflow">break</span>;
<a name="l00251"></a>00251 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe45ae3872010a25d6bb564f9e5ebcd275a">dtn::TcaControlBundle::CB_ADV_SENT</a>:
<a name="l00252"></a>00252 <a class="code" href="classTcaController.html#70ed743c435d74184891b2138c22f35c">handle_adv_sent</a>(spec, cb);
<a name="l00253"></a>00253 <span class="keywordflow">break</span>;
<a name="l00254"></a>00254 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe4e39614b1b00e02215e46f015be9589c6">dtn::TcaControlBundle::CB_REG_RECEIVED</a>:
<a name="l00255"></a>00255 <a class="code" href="classTcaController.html#c835008a5810c703982509da5c464a1a">handle_reg_received</a>(spec, cb);
<a name="l00256"></a>00256 <span class="keywordflow">break</span>;
<a name="l00257"></a>00257 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe49fd49d430e23818a1c87ddc8f61cba15">dtn::TcaControlBundle::CB_UNB</a>:
<a name="l00258"></a>00258 <a class="code" href="classTcaController.html#3eea197644db5cbf669075065872e357">handle_unb</a>(spec, cb);
<a name="l00259"></a>00259 <span class="keywordflow">break</span>;
<a name="l00260"></a>00260 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe407a943afd0f699f994e5a638a4d90a6d">dtn::TcaControlBundle::CB_COA</a>:
<a name="l00261"></a>00261 <span class="comment">// all of the real coa logic is in the bundle_tranmitted handler</span>
<a name="l00262"></a>00262 <span class="comment">// in bundle layer</span>
<a name="l00263"></a>00263 <span class="keywordflow">break</span>;
<a name="l00264"></a>00264 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe469c013f24e51ab7142fef6119f44b4f3">dtn::TcaControlBundle::CB_COA_SENT</a>:
<a name="l00265"></a>00265 <a class="code" href="classTcaController.html#aca6de8af48b6b6e8c04296ee9687a54">handle_coa_sent</a>(spec, cb);
<a name="l00266"></a>00266 <span class="keywordflow">break</span>;
<a name="l00267"></a>00267 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe43b29556bcd6dbf0d78385c3a13c22f13">dtn::TcaControlBundle::CB_ROUTES</a>:
<a name="l00268"></a>00268 <a class="code" href="classTcaController.html#8ac49d6419bb7a13964e14849c20e168">handle_routes</a>(spec, cb);
<a name="l00269"></a>00269 <span class="keywordflow">break</span>;
<a name="l00270"></a>00270 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe4216761fd82961adfe30d0f4bef92c57a">dtn::TcaControlBundle::CB_LINK_AVAILABLE</a>:
<a name="l00271"></a>00271 <span class="keywordflow">break</span>;
<a name="l00272"></a>00272 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe484608abba5d9582eb4d7dc8494e82b1e">dtn::TcaControlBundle::CB_LINK_UNAVAILABLE</a>:
<a name="l00273"></a>00273 <span class="keywordflow">break</span>;
<a name="l00274"></a>00274 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe400ac8aa62642b349226777fbe902643b">dtn::TcaControlBundle::CB_CONTACT_UP</a>:
<a name="l00275"></a>00275 <span class="keywordflow">break</span>;
<a name="l00276"></a>00276 <span class="keywordflow">case</span> <a class="code" href="classdtn_1_1TcaControlBundle.html#89a0451e100501918940f6913a1e2fe4757e1c7f7c6a1cf083d343c88662f981">dtn::TcaControlBundle::CB_CONTACT_DOWN</a>:
<a name="l00277"></a>00277 <span class="keywordflow">break</span>;
<a name="l00278"></a>00278 <span class="keywordflow">default</span>:
<a name="l00279"></a>00279 printf(<span class="stringliteral">"TcaController: unrecognized bundle code received: '%s'\n"</span>,
<a name="l00280"></a>00280 cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#9680f349d5fc55be8b5aaa4aefae4ccd">code_</a>.c_str());
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285
<a name="l00286"></a>00286
<a name="l00287"></a>00287
<a name="l00288"></a>00288 <span class="keywordtype">bool</span>
<a name="l00289"></a><a class="code" href="classTcaController.html#c835008a5810c703982509da5c464a1a">00289</a> <a class="code" href="classTcaController.html#c835008a5810c703982509da5c464a1a">TcaController::handle_reg_received</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00290"></a>00290 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00291"></a>00291 {
<a name="l00292"></a>00292 <span class="keywordflow">switch</span> (<a class="code" href="classTcaController.html#5fe13558c0fd6b677ea3351c7db7c7a9">role_</a>)
<a name="l00293"></a>00293 {
<a name="l00294"></a>00294 <span class="keywordflow">case</span> <a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8459c28598b31e7abed139354a852eb1e">TCA_MOBILE</a>:
<a name="l00295"></a>00295 <span class="comment">// TODO: This isn't an error. Just add the link addr and forward</span>
<a name="l00296"></a>00296 <span class="comment">// the bundle to default route. Exactly the same logic as</span>
<a name="l00297"></a>00297 <span class="comment">// for a router.</span>
<a name="l00298"></a>00298 <span class="keywordflow">return</span> <a class="code" href="classTcaController.html#6c86674cf475cc7ec769a876a047590f">route_reg</a>(spec, cb);
<a name="l00299"></a>00299 <span class="keywordflow">break</span>;
<a name="l00300"></a>00300 <span class="keywordflow">case</span> <a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8d0091d82b024466078fb44c6fe43785f">TCA_ROUTER</a>:
<a name="l00301"></a>00301 <span class="keywordflow">return</span> <a class="code" href="classTcaController.html#6c86674cf475cc7ec769a876a047590f">route_reg</a>(spec, cb);
<a name="l00302"></a>00302 <span class="keywordflow">break</span>;
<a name="l00303"></a>00303 <span class="keywordflow">case</span> <a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8bc4e9e3265e93fd4f9484c8f615672d3">TCA_GATEWAY</a>:
<a name="l00304"></a>00304 <span class="keywordflow">return</span> <a class="code" href="classTcaController.html#13fe5dee57c765a0c33a12f17bbe9e15">gate_reg</a>(spec, cb);
<a name="l00305"></a>00305 <span class="keywordflow">break</span>;
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00309"></a>00309 }
<a name="l00310"></a>00310
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="keywordtype">bool</span>
<a name="l00313"></a><a class="code" href="classTcaController.html#3eea197644db5cbf669075065872e357">00313</a> <a class="code" href="classTcaController.html#3eea197644db5cbf669075065872e357">TcaController::handle_unb</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00314"></a>00314 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00315"></a>00315 {
<a name="l00316"></a>00316 (void)spec;
<a name="l00317"></a>00317
<a name="l00318"></a>00318 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#5fe13558c0fd6b677ea3351c7db7c7a9">role_</a> != <a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8bc4e9e3265e93fd4f9484c8f615672d3">TCA_GATEWAY</a>)
<a name="l00319"></a>00319 {
<a name="l00320"></a>00320 printf(<span class="stringliteral">"TcaController error: non-gateway received unb bundle.\n"</span>);
<a name="l00321"></a>00321 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00322"></a>00322 }
<a name="l00323"></a>00323
<a name="l00324"></a>00324 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> dest_eid(cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[0]);
<a name="l00325"></a>00325 <a class="code" href="classRegRecord.html">RegRecord</a> rr;
<a name="l00326"></a>00326
<a name="l00327"></a>00327 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#a3f584822db3b5849279f5104bd0101b">get_registration</a>(dest_eid, rr))
<a name="l00328"></a>00328 {
<a name="l00329"></a>00329 printf(<span class="stringliteral">"TcaController: bind failed: unregistered node [%s]\n"</span>,
<a name="l00330"></a>00330 dest_eid.<a class="code" href="classTcaEndpointID.html#e435a2d92ecd234ae77ef7d2d5ffb113">c_str</a>());
<a name="l00331"></a>00331 <span class="comment">// TODO: What should happen here?</span>
<a name="l00332"></a>00332 <span class="comment">// dest may never have registered, or may have previously registered</span>
<a name="l00333"></a>00333 <span class="comment">// but expired. Depending how we want to handle registration</span>
<a name="l00334"></a>00334 <span class="comment">// lifetime, we may need to re-try this get_registration later.</span>
<a name="l00335"></a>00335 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00336"></a>00336 }
<a name="l00337"></a>00337
<a name="l00338"></a>00338 <span class="comment">// Found it! Add a route.</span>
<a name="l00339"></a>00339 <span class="comment">// Note: There's no point deleting old routes for this endpoint. We</span>
<a name="l00340"></a>00340 <span class="comment">// got here because no old routes exist!</span>
<a name="l00341"></a>00341
<a name="l00342"></a>00342 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">add_route</a>(dest_eid.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>(), rr.<a class="code" href="classRegRecord.html#73b5a145105ac1d526d436af014b82cd">link_addr_</a>)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00343"></a>00343
<a name="l00344"></a>00344 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00345"></a>00345 }
<a name="l00346"></a>00346
<a name="l00347"></a>00347
<a name="l00348"></a>00348 <span class="keywordtype">bool</span>
<a name="l00349"></a><a class="code" href="classTcaController.html#aca6de8af48b6b6e8c04296ee9687a54">00349</a> <a class="code" href="classTcaController.html#aca6de8af48b6b6e8c04296ee9687a54">TcaController::handle_coa_sent</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00350"></a>00350 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00351"></a>00351 {
<a name="l00352"></a>00352 (void)spec;
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#5fe13558c0fd6b677ea3351c7db7c7a9">role_</a> == <a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8459c28598b31e7abed139354a852eb1e">TCA_MOBILE</a>)
<a name="l00355"></a>00355 {
<a name="l00356"></a>00356 printf(<span class="stringliteral">"TcaController error: mobile received coa_sent bundle.\n"</span>);
<a name="l00357"></a>00357 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00358"></a>00358 }
<a name="l00359"></a>00359
<a name="l00360"></a>00360 <span class="comment">// TODO: update this to use ControlBundle class</span>
<a name="l00361"></a>00361 <span class="keyword">const</span> std::string& <a class="code" href="dtnmoteproxy_8c.html#e1ade0f5a1b32f6c8be72f31a99e2a18">src</a> = cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[0]; <span class="comment">// coa src (gateway)</span>
<a name="l00362"></a>00362 <span class="keyword">const</span> std::string& dest = cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[1]; <span class="comment">// coa dest (mobile)</span>
<a name="l00363"></a>00363 <span class="keyword">const</span> std::string& link = cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[2]; <span class="comment">// last hop to mobile</span>
<a name="l00364"></a>00364
<a name="l00365"></a>00365 <span class="comment">// if we're a router or a gateway, delete routes to the bundle dest:</span>
<a name="l00366"></a>00366 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> <a class="code" href="dtnperf-client_8c.html#71808395b2460b32d8b1048e44faef6e">pattern</a> = dest;
<a name="l00367"></a>00367 pattern.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"*"</span>);
<a name="l00368"></a>00368 <a class="code" href="classTcaController.html#6976d25ddb8ce95d0266c38ae71291c6">del_route</a>(pattern.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>());
<a name="l00369"></a>00369
<a name="l00370"></a>00370 <span class="comment">// if the coa bundle originated at *this* gateway node then we have to</span>
<a name="l00371"></a>00371 <span class="comment">// update the registry and finally add the route back to the </span>
<a name="l00372"></a>00372 <span class="comment">// registering mobile</span>
<a name="l00373"></a>00373 <span class="keywordflow">if</span> (src == <a class="code" href="classTcaController.html#7cf3bdaa873e2f9364e2d8ae494917b0">local_eid_</a>.<a class="code" href="structdtn__endpoint__id__t.html#d2e7d5788ae778c77b4041f1f8b1dc80">uri</a>)
<a name="l00374"></a>00374 {
<a name="l00375"></a>00375 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> tca_dest = dest;
<a name="l00376"></a>00376 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#6d4f7abe8827a35ed31af39d448de05a">do_registration</a>(tca_dest, <a class="code" href="classTcaController.html#168a2e93061fa90c4281b379a4256895">link_id_</a>)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00377"></a>00377
<a name="l00378"></a>00378 tca_dest.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"*"</span>);
<a name="l00379"></a>00379 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">add_route</a>(tca_dest.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>(), link)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00380"></a>00380 }
<a name="l00381"></a>00381
<a name="l00382"></a>00382 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384
<a name="l00385"></a>00385
<a name="l00386"></a>00386 <span class="keywordtype">bool</span>
<a name="l00387"></a><a class="code" href="classTcaController.html#d2028ffc6742625ab9148b59dbe50ac7">00387</a> <a class="code" href="classTcaController.html#d2028ffc6742625ab9148b59dbe50ac7">TcaController::handle_link_announce</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00388"></a>00388 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00389"></a>00389 {
<a name="l00390"></a>00390 (void)spec;
<a name="l00391"></a>00391
<a name="l00392"></a>00392 <span class="comment">// Note: the port number is omitted from the link_announce bundle.</span>
<a name="l00393"></a>00393 <span class="comment">// It is up to TcaController to decide which port to probe.</span>
<a name="l00394"></a>00394 <span class="keywordflow">if</span> (!<a class="code" href="TcaController_8cc.html#be1dd7bb182d86b3fdeacecf9131770f">check_nargs</a>(cb, 1)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00395"></a>00395 std::string link_spec = cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[0];
<a name="l00396"></a>00396 link_spec += <span class="stringliteral">":5000"</span>;
<a name="l00397"></a>00397 <span class="keywordflow">return</span> <a class="code" href="classTcaController.html#aa71a7f87d04fa4882a822784095d7c2">ask</a>(link_spec);
<a name="l00398"></a>00398 }
<a name="l00399"></a>00399
<a name="l00400"></a>00400
<a name="l00401"></a>00401 <span class="keywordtype">bool</span>
<a name="l00402"></a><a class="code" href="classTcaController.html#7975eedcd985c76937e963a2ec822f43">00402</a> <a class="code" href="classTcaController.html#7975eedcd985c76937e963a2ec822f43">TcaController::handle_ask</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00403"></a>00403 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00404"></a>00404 {
<a name="l00405"></a>00405 (void)spec;
<a name="l00406"></a>00406 (void)cb;
<a name="l00407"></a>00407 printf(<span class="stringliteral">"error -- we should never receive an ask bundle!\n"</span>);
<a name="l00408"></a>00408
<a name="l00409"></a>00409 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00410"></a>00410 }
<a name="l00411"></a>00411
<a name="l00412"></a>00412
<a name="l00413"></a>00413 <span class="keywordtype">bool</span>
<a name="l00414"></a><a class="code" href="classTcaController.html#4d1fb0d176f54ca19c175dc312817b2f">00414</a> <a class="code" href="classTcaController.html#4d1fb0d176f54ca19c175dc312817b2f">TcaController::handle_ask_received</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00415"></a>00415 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00416"></a>00416 {
<a name="l00417"></a>00417 (void)spec;
<a name="l00418"></a>00418 <a class="code" href="classdtn_1_1TcaWrappedBundle.html">dtn::TcaWrappedBundle</a> wb(cb);
<a name="l00419"></a>00419
<a name="l00420"></a>00420 <span class="comment">// respond by adding a route and sending adv</span>
<a name="l00421"></a>00421
<a name="l00422"></a>00422 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> src_eid = wb.<a class="code" href="classdtn_1_1TcaWrappedBundle.html#81b5effa7c29ee0b8fff3251c6e7835f">source</a>();
<a name="l00423"></a>00423 src_eid.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"*"</span>);
<a name="l00424"></a>00424
<a name="l00425"></a>00425 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">add_route</a>(src_eid.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>(), wb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[2])) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00426"></a>00426
<a name="l00427"></a>00427 <span class="comment">// respond with adv</span>
<a name="l00428"></a>00428 <span class="comment">// note that adv is a regular bundle addressed to asking node eid</span>
<a name="l00429"></a>00429 <span class="comment">// (not an inter-layer WrappedBundle)</span>
<a name="l00430"></a>00430 std::string response = <span class="stringliteral">"adv:"</span>;
<a name="l00431"></a>00431 response += wb.<a class="code" href="classdtn_1_1TcaWrappedBundle.html#a7e7c44c3b0cec83cd9332d03d60d5de">dest</a>(); <span class="comment">// echo original ask dest</span>
<a name="l00432"></a>00432 response += <span class="stringliteral">"\t"</span>;
<a name="l00433"></a>00433 response += <a class="code" href="classTcaController.html#3a9ffabeafd696557c5df5daaaf8eb2d">adv_str_</a>; <span class="comment">// send adv string</span>
<a name="l00434"></a>00434 <a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(wb.<a class="code" href="classdtn_1_1TcaWrappedBundle.html#81b5effa7c29ee0b8fff3251c6e7835f">source</a>(), response);
<a name="l00435"></a>00435
<a name="l00436"></a>00436 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00437"></a>00437 }
<a name="l00438"></a>00438
<a name="l00439"></a>00439
<a name="l00440"></a>00440 <span class="keywordtype">bool</span>
<a name="l00441"></a><a class="code" href="classTcaController.html#b342df9e3f1c8a6f787254906166bdd3">00441</a> <a class="code" href="classTcaController.html#b342df9e3f1c8a6f787254906166bdd3">TcaController::handle_ask_sent</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00442"></a>00442 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00443"></a>00443 {
<a name="l00444"></a>00444 (void)spec;
<a name="l00445"></a>00445 <a class="code" href="classdtn_1_1TcaWrappedBundle.html">dtn::TcaWrappedBundle</a> wb(cb);
<a name="l00446"></a>00446
<a name="l00447"></a>00447 <span class="comment">// respond by deleting the route</span>
<a name="l00448"></a>00448 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> dest_eid = wb.<a class="code" href="classdtn_1_1TcaWrappedBundle.html#a7e7c44c3b0cec83cd9332d03d60d5de">dest</a>(); <span class="comment">// dest of original ask</span>
<a name="l00449"></a>00449 dest_eid.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"*"</span>);
<a name="l00450"></a>00450
<a name="l00451"></a>00451 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#6976d25ddb8ce95d0266c38ae71291c6">del_route</a>(dest_eid.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>())) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00452"></a>00452 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00453"></a>00453 }
<a name="l00454"></a>00454
<a name="l00455"></a>00455
<a name="l00456"></a>00456 <span class="keywordtype">bool</span>
<a name="l00457"></a><a class="code" href="classTcaController.html#0fc2190e80788f924c5c6e7519ddda79">00457</a> <a class="code" href="classTcaController.html#0fc2190e80788f924c5c6e7519ddda79">TcaController::handle_adv</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00458"></a>00458 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00459"></a>00459 {
<a name="l00460"></a>00460 (void)spec;
<a name="l00461"></a>00461 (void)cb;
<a name="l00462"></a>00462 <span class="comment">// TODO: This is the place to be smart and try to decide on a</span>
<a name="l00463"></a>00463 <span class="comment">// router to use for the default route.</span>
<a name="l00464"></a>00464 <span class="comment">// For now, do nothing.</span>
<a name="l00465"></a>00465 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00466"></a>00466 }
<a name="l00467"></a>00467
<a name="l00468"></a>00468
<a name="l00469"></a>00469 <span class="keywordtype">bool</span>
<a name="l00470"></a><a class="code" href="classTcaController.html#70ed743c435d74184891b2138c22f35c">00470</a> <a class="code" href="classTcaController.html#70ed743c435d74184891b2138c22f35c">TcaController::handle_adv_sent</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00471"></a>00471 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00472"></a>00472 {
<a name="l00473"></a>00473 (void)spec;
<a name="l00474"></a>00474 <a class="code" href="classdtn_1_1TcaWrappedBundle.html">dtn::TcaWrappedBundle</a> wb(cb);
<a name="l00475"></a>00475
<a name="l00476"></a>00476 <span class="comment">// respond by deleting the route</span>
<a name="l00477"></a>00477 <span class="comment">// TODO: This is actually more complicated! We should only delete the</span>
<a name="l00478"></a>00478 <span class="comment">// route if it was created by the ask bundle that spawned this adv</span>
<a name="l00479"></a>00479 <span class="comment">// (ie. if it was a pre-existing route, we should keep it!)</span>
<a name="l00480"></a>00480 <span class="comment">// Best idea on how to do that is to use the route table to store</span>
<a name="l00481"></a>00481 <span class="comment">// extra info on creating the entry, indicating it's a temp route.</span>
<a name="l00482"></a>00482 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> dest_eid = wb.<a class="code" href="classdtn_1_1TcaWrappedBundle.html#a7e7c44c3b0cec83cd9332d03d60d5de">dest</a>(); <span class="comment">// dest of original ask</span>
<a name="l00483"></a>00483 dest_eid.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"*"</span>);
<a name="l00484"></a>00484
<a name="l00485"></a>00485 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#6976d25ddb8ce95d0266c38ae71291c6">del_route</a>(dest_eid.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>())) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00486"></a>00486 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00487"></a>00487 }
<a name="l00488"></a>00488
<a name="l00489"></a>00489
<a name="l00490"></a>00490 <span class="keywordtype">bool</span>
<a name="l00491"></a><a class="code" href="classTcaController.html#8ac49d6419bb7a13964e14849c20e168">00491</a> <a class="code" href="classTcaController.html#8ac49d6419bb7a13964e14849c20e168">TcaController::handle_routes</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00492"></a>00492 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00493"></a>00493 {
<a name="l00494"></a>00494 (void)spec;
<a name="l00495"></a>00495
<a name="l00496"></a>00496 printf(<span class="stringliteral">"routes:\n"</span>);
<a name="l00497"></a>00497 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>.size(); ++i)
<a name="l00498"></a>00498 {
<a name="l00499"></a>00499 printf(<span class="stringliteral">" %s \n"</span>, cb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[i].c_str());
<a name="l00500"></a>00500 }
<a name="l00501"></a>00501 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00502"></a>00502 }
<a name="l00503"></a>00503
<a name="l00504"></a>00504
<a name="l00505"></a>00505 <span class="keywordtype">bool</span>
<a name="l00506"></a><a class="code" href="classTcaController.html#6c86674cf475cc7ec769a876a047590f">00506</a> <a class="code" href="classTcaController.html#6c86674cf475cc7ec769a876a047590f">TcaController::route_reg</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00507"></a>00507 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00508"></a>00508 {
<a name="l00509"></a>00509 (void)spec;
<a name="l00510"></a>00510 <span class="comment">// A (small) problem is that we will get 2 links for a node that</span>
<a name="l00511"></a>00511 <span class="comment">// already has an link defined explicitly in the dtn.conf file.</span>
<a name="l00512"></a>00512 <span class="comment">// Another link will be auto-created with a different name, same params.</span>
<a name="l00513"></a>00513 <span class="comment">// We could be smarter and check for this.</span>
<a name="l00514"></a>00514
<a name="l00515"></a>00515 <span class="keywordflow">if</span> (!<a class="code" href="TcaController_8cc.html#be1dd7bb182d86b3fdeacecf9131770f">check_nargs</a>(cb, 4)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00516"></a>00516
<a name="l00517"></a>00517 <a class="code" href="classdtn_1_1TcaWrappedBundle.html">dtn::TcaWrappedBundle</a> wb(cb);
<a name="l00518"></a>00518
<a name="l00519"></a>00519 std::string mobile_eid = wb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[2];
<a name="l00520"></a>00520 std::string last_hop = wb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[3];
<a name="l00521"></a>00521
<a name="l00522"></a>00522 <span class="keywordflow">if</span> (last_hop != <span class="stringliteral">"NULL"</span>)
<a name="l00523"></a>00523 {
<a name="l00524"></a>00524 <span class="comment">// The register bundle did not originate at this node.</span>
<a name="l00525"></a>00525 <span class="comment">// Add a link and route back to mobile.</span>
<a name="l00526"></a>00526
<a name="l00527"></a>00527 mobile_eid = wb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[2];
<a name="l00528"></a>00528 last_hop = wb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[3];
<a name="l00529"></a>00529
<a name="l00530"></a>00530 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> <a class="code" href="dtnperf-client_8c.html#71808395b2460b32d8b1048e44faef6e">pattern</a>(mobile_eid);
<a name="l00531"></a>00531
<a name="l00532"></a>00532 <span class="comment">// Delete the old route to mobile.</span>
<a name="l00533"></a>00533 <span class="comment">// This is the correct behaviour because there should not</span>
<a name="l00534"></a>00534 <span class="comment">// be any static routes for a tca mobile, only the one obtained</span>
<a name="l00535"></a>00535 <span class="comment">// through the previous registration, and that one's now invalid.</span>
<a name="l00536"></a>00536 pattern.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"*"</span>);
<a name="l00537"></a>00537 printf(<span class="stringliteral">"deleteing routes for %s\n"</span>, pattern.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>().c_str());
<a name="l00538"></a>00538 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#6976d25ddb8ce95d0266c38ae71291c6">del_route</a>(pattern.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>())) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00539"></a>00539
<a name="l00540"></a>00540 <span class="comment">// Create the new route to mobile.</span>
<a name="l00541"></a>00541 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">add_route</a>(pattern.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>(), last_hop)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00542"></a>00542 }
<a name="l00543"></a>00543
<a name="l00544"></a>00544 <span class="comment">// Now propagate the registry bundle (actually send a new one with</span>
<a name="l00545"></a>00545 <span class="comment">// last_hop set to local node).</span>
<a name="l00546"></a>00546 <span class="comment">// Skip this step if we're a gateway.</span>
<a name="l00547"></a>00547
<a name="l00548"></a>00548 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#5fe13558c0fd6b677ea3351c7db7c7a9">role_</a> != <a class="code" href="classTcaController.html#6065b68cf7e913529a0351051211b7a8bc4e9e3265e93fd4f9484c8f615672d3">TCA_GATEWAY</a>)
<a name="l00549"></a>00549 {
<a name="l00550"></a>00550 std::string new_payload = <span class="stringliteral">"register:"</span>;
<a name="l00551"></a>00551 new_payload += mobile_eid; <span class="comment">// original mobile id</span>
<a name="l00552"></a>00552 new_payload += <span class="stringliteral">"\t"</span>;
<a name="l00553"></a>00553 new_payload += <a class="code" href="classTcaController.html#168a2e93061fa90c4281b379a4256895">link_id_</a>; <span class="comment">// link id of this router (last hop)</span>
<a name="l00554"></a>00554
<a name="l00555"></a>00555 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(<span class="stringliteral">"tca://registry"</span>, new_payload)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00556"></a>00556 }
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00559"></a>00559 }
<a name="l00560"></a>00560
<a name="l00561"></a>00561
<a name="l00562"></a>00562 <span class="keywordtype">bool</span>
<a name="l00563"></a><a class="code" href="classTcaController.html#13fe5dee57c765a0c33a12f17bbe9e15">00563</a> <a class="code" href="classTcaController.html#13fe5dee57c765a0c33a12f17bbe9e15">TcaController::gate_reg</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00564"></a>00564 <span class="keyword">const</span> <a class="code" href="classdtn_1_1TcaControlBundle.html">dtn::TcaControlBundle</a>& cb)
<a name="l00565"></a>00565 {
<a name="l00566"></a>00566 (void)spec;
<a name="l00567"></a>00567 <a class="code" href="classdtn_1_1TcaWrappedBundle.html">dtn::TcaWrappedBundle</a> wb(cb);
<a name="l00568"></a>00568
<a name="l00569"></a>00569 std::string mobile_eid = wb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[2];
<a name="l00570"></a>00570 std::string last_hop = wb.<a class="code" href="classdtn_1_1TcaControlBundle.html#e9497c7cf69bc9a7a2a1e05335d00d0a">args_</a>[3];
<a name="l00571"></a>00571
<a name="l00572"></a>00572 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> <a class="code" href="dtnmoteproxy_8c.html#e1ade0f5a1b32f6c8be72f31a99e2a18">src</a>(mobile_eid);
<a name="l00573"></a>00573
<a name="l00574"></a>00574 <span class="comment">// First, get the old gateway for the source endpoint. We'll need it later.</span>
<a name="l00575"></a>00575 <span class="comment">// It's ok if it doesn't exist -- then this is a new registration.</span>
<a name="l00576"></a>00576 <span class="comment">// printf("TcaController: reading old registration...\n");</span>
<a name="l00577"></a>00577 <a class="code" href="classRegRecord.html">RegRecord</a> old_reg;
<a name="l00578"></a>00578 <span class="keywordtype">bool</span> prev_reg_exists = <a class="code" href="classTcaController.html#a3f584822db3b5849279f5104bd0101b">get_registration</a>(src, old_reg);
<a name="l00579"></a>00579
<a name="l00580"></a>00580 <span class="keywordflow">if</span> (prev_reg_exists)
<a name="l00581"></a>00581 {
<a name="l00582"></a>00582 <span class="comment">// if (old_gateway == me) don't bother re-registering</span>
<a name="l00583"></a>00583 <span class="keywordflow">if</span> (old_reg.<a class="code" href="classRegRecord.html#73b5a145105ac1d526d436af014b82cd">link_addr_</a> == <a class="code" href="classTcaController.html#168a2e93061fa90c4281b379a4256895">link_id_</a>)
<a name="l00584"></a>00584 {
<a name="l00585"></a>00585 printf(<span class="stringliteral">"TcaController: ignoring re-registration with same"</span>
<a name="l00586"></a>00586 <span class="stringliteral">" gateway\n"</span>);
<a name="l00587"></a>00587
<a name="l00588"></a>00588 <span class="comment">// TODO: We still need to destruct old reverse path, even</span>
<a name="l00589"></a>00589 <span class="comment">// if the mobile has re-registerd in the same gateway.</span>
<a name="l00590"></a>00590 <span class="comment">// In this case, only part of the route is different.</span>
<a name="l00591"></a>00591 <span class="comment">// Probably each router should check for this case on</span>
<a name="l00592"></a>00592 <span class="comment">// handling the reg bundle -- if duplicate for same endpoint</span>
<a name="l00593"></a>00593 <span class="comment">// destruct old route and construct new one. Don't even propagate</span>
<a name="l00594"></a>00594 <span class="comment">// the reg. up to the gateway.</span>
<a name="l00595"></a>00595 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00596"></a>00596 }
<a name="l00597"></a>00597 <span class="keywordflow">else</span>
<a name="l00598"></a>00598 {
<a name="l00599"></a>00599 printf(<span class="stringliteral">"TcaController: initiating change-of-address\n"</span>);
<a name="l00600"></a>00600
<a name="l00601"></a>00601 <span class="comment">// There is a previous registration with another gateway.</span>
<a name="l00602"></a>00602 <span class="comment">// We need to send a coa bundle to that gateway. Don't re-register</span>
<a name="l00603"></a>00603 <span class="comment">// until this is done (handle_bundle_transmitted).</span>
<a name="l00604"></a>00604
<a name="l00605"></a>00605 <span class="comment">// First we need to create a route to the old gateway,</span>
<a name="l00606"></a>00606 <span class="comment">// as in gate_unbound_bundle.</span>
<a name="l00607"></a>00607
<a name="l00608"></a>00608 <span class="comment">// Construct a route pattern based on the source eid.</span>
<a name="l00609"></a>00609 <span class="comment">// Note: we use the special application "admin.coa" to ensure</span>
<a name="l00610"></a>00610 <span class="comment">// that this route is only used for the coa bundle.</span>
<a name="l00611"></a>00611 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> <a class="code" href="dtnperf-client_8c.html#71808395b2460b32d8b1048e44faef6e">pattern</a> = src;
<a name="l00612"></a>00612 pattern.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"admin.coa"</span>);
<a name="l00613"></a>00613
<a name="l00614"></a>00614 printf(<span class="stringliteral">"TcaController: adding route %s -> %s\n"</span>,
<a name="l00615"></a>00615 pattern.<a class="code" href="classTcaEndpointID.html#e435a2d92ecd234ae77ef7d2d5ffb113">c_str</a>(), old_reg.<a class="code" href="classRegRecord.html#73b5a145105ac1d526d436af014b82cd">link_addr_</a>.c_str());
<a name="l00616"></a>00616
<a name="l00617"></a>00617 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">add_route</a>(pattern.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>(), old_reg.<a class="code" href="classRegRecord.html#73b5a145105ac1d526d436af014b82cd">link_addr_</a>)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00618"></a>00618
<a name="l00619"></a>00619
<a name="l00620"></a>00620 <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a> dest_eid = src;
<a name="l00621"></a>00621 dest_eid.<a class="code" href="classTcaEndpointID.html#b5fb4117a3c52a00d0e09e48b5dd8424">set_app</a>(<span class="stringliteral">"admin.coa"</span>);
<a name="l00622"></a>00622
<a name="l00623"></a>00623 <span class="comment">// Construct coa bundle.</span>
<a name="l00624"></a>00624 <span class="comment">// source: this gateway</span>
<a name="l00625"></a>00625 <span class="comment">// dest: original mobile with special app "admin.coa"</span>
<a name="l00626"></a>00626
<a name="l00627"></a>00627 <span class="comment">// This is a bit of a kludge...</span>
<a name="l00628"></a>00628 <span class="comment">// The last thing done by the gateway after issuing the coa</span>
<a name="l00629"></a>00629 <span class="comment">// bundle and updating the registry, is to create the route</span>
<a name="l00630"></a>00630 <span class="comment">// back to the mobile (just like during routing of a reg bundle)</span>
<a name="l00631"></a>00631 <span class="comment">// We'll need the last_hop link to do that. So we put it in</span>
<a name="l00632"></a>00632 <span class="comment">// the body of the coa bundle, to be used on this very same node</span>
<a name="l00633"></a>00633 <span class="comment">// on bundle transmitted.</span>
<a name="l00634"></a>00634
<a name="l00635"></a>00635 std::string coa_payload = <span class="stringliteral">"coa:"</span>;
<a name="l00636"></a>00636 coa_payload += last_hop;
<a name="l00637"></a>00637
<a name="l00638"></a>00638 <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a> coa_spec;
<a name="l00639"></a>00639 <span class="keywordflow">if</span> (!<a class="code" href="TcaController_8cc.html#ac9fc2d8009fcf76a55975090be35659">make_spec</a>(coa_spec, <a class="code" href="classTcaController.html#7cf3bdaa873e2f9364e2d8ae494917b0">local_eid_</a>.<a class="code" href="structdtn__endpoint__id__t.html#d2e7d5788ae778c77b4041f1f8b1dc80">uri</a>, dest_eid.<a class="code" href="classTcaEndpointID.html#c00c2bd2bcac7eba4b5d302256346f95">str</a>(),
<a name="l00640"></a>00640 <a class="code" href="classTcaController.html#7cf3bdaa873e2f9364e2d8ae494917b0">local_eid_</a>.<a class="code" href="structdtn__endpoint__id__t.html#d2e7d5788ae778c77b4041f1f8b1dc80">uri</a>, <a class="code" href="classTcaController.html#a4a97611ac28e1ae6f235ff12118bda2">control_ttl_</a>, <a class="code" href="dtn__types_8h.html#993858e35739619750a07d5dc1c275e0f5a0479d0c742791ecd3827d8bf82bfc">COS_NORMAL</a>, <a class="code" href="dtn__types_8h.html#ed7af5cc4e44a2ced1acdee4e441f000cb6b7eb0422ee4f6c87a4c1dd3cecee5">DOPTS_NONE</a>))
<a name="l00641"></a>00641 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00642"></a>00642
<a name="l00643"></a>00643 <span class="comment">// We need to set non-zero expiration or else the bundle</span>
<a name="l00644"></a>00644 <span class="comment">// expires as soon as it arrives.</span>
<a name="l00645"></a>00645 <span class="comment">// The default values are ok for the rest of the bundle fields.</span>
<a name="l00646"></a>00646
<a name="l00647"></a>00647 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(coa_spec, coa_payload)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00648"></a>00648
<a name="l00649"></a>00649 <span class="comment">// Note: I thought we might have a problem here. The send_bundle</span>
<a name="l00650"></a>00650 <span class="comment">// will cause a BundleReceivedEvent in the daemon, but it's ok</span>
<a name="l00651"></a>00651 <span class="comment">// because the BL checks for a null last-hop, indicating that</span>
<a name="l00652"></a>00652 <span class="comment">// the bundle came from this node.</span>
<a name="l00653"></a>00653 }
<a name="l00654"></a>00654
<a name="l00655"></a>00655 <span class="comment">// Note: We do *not* update the link and route just yet.</span>
<a name="l00656"></a>00656 <span class="comment">// Do it on handle_bundle_transmitted instead, at which point</span>
<a name="l00657"></a>00657 <span class="comment">// we should delete the temporary admin.coa route (to the mobile's</span>
<a name="l00658"></a>00658 <span class="comment">// old location and add a new route to the mobile's new location.</span>
<a name="l00659"></a>00659 }
<a name="l00660"></a>00660
<a name="l00661"></a>00661 <span class="keywordflow">else</span>
<a name="l00662"></a>00662 {
<a name="l00663"></a>00663 <span class="comment">// No previous registration so no change-of-address required.</span>
<a name="l00664"></a>00664 <span class="comment">// Go ahead and register.</span>
<a name="l00665"></a>00665 <span class="comment">// update the registry entry for the source endpoint</span>
<a name="l00666"></a>00666 <span class="comment">// printf("TcaController: doing new registration...\n");</span>
<a name="l00667"></a>00667 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#6d4f7abe8827a35ed31af39d448de05a">do_registration</a>(src, <a class="code" href="classTcaController.html#168a2e93061fa90c4281b379a4256895">link_id_</a>)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00668"></a>00668
<a name="l00669"></a>00669 <span class="comment">// update local link and route</span>
<a name="l00670"></a>00670 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#6c86674cf475cc7ec769a876a047590f">route_reg</a>(spec, cb)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00671"></a>00671 }
<a name="l00672"></a>00672
<a name="l00673"></a>00673 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00674"></a>00674
<a name="l00675"></a>00675 }
<a name="l00676"></a>00676
<a name="l00677"></a>00677
<a name="l00678"></a>00678 <span class="keywordtype">bool</span>
<a name="l00679"></a><a class="code" href="classTcaController.html#aa71a7f87d04fa4882a822784095d7c2">00679</a> <a class="code" href="classTcaController.html#aa71a7f87d04fa4882a822784095d7c2">TcaController::ask</a>(<span class="keyword">const</span> std::string& link)
<a name="l00680"></a>00680 {
<a name="l00681"></a>00681 <span class="comment">// "ask" on an unknown link</span>
<a name="l00682"></a>00682 <span class="comment">// Idea: create temporary route and send ask bundle</span>
<a name="l00683"></a>00683 <span class="comment">// on handling the corresponding adv, delete the route</span>
<a name="l00684"></a>00684
<a name="l00685"></a>00685
<a name="l00686"></a>00686 std::string host = <span class="stringliteral">"tca://anonymous"</span>;
<a name="l00687"></a>00687 <span class="comment">// omit prefix "tcp://" due to slashes:</span>
<a name="l00688"></a>00688 host += link.substr(6, link.length());
<a name="l00689"></a>00689
<a name="l00690"></a>00690 std::string <a class="code" href="dtnperf-client_8c.html#71808395b2460b32d8b1048e44faef6e">pattern</a> = host + <span class="stringliteral">"/*"</span>;
<a name="l00691"></a>00691
<a name="l00692"></a>00692 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">add_route</a>(pattern, link)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00693"></a>00693
<a name="l00694"></a>00694 std::string payload = <span class="stringliteral">"ask:"</span>;
<a name="l00695"></a>00695 payload += <a class="code" href="classTcaController.html#168a2e93061fa90c4281b379a4256895">link_id_</a>; <span class="comment">// our own link, for return route</span>
<a name="l00696"></a>00696
<a name="l00697"></a>00697 std::string dest = host + <span class="stringliteral">"/admin.ask"</span>;
<a name="l00698"></a>00698
<a name="l00699"></a>00699 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(dest, payload))
<a name="l00700"></a>00700 {
<a name="l00701"></a>00701 fprintf(stderr,
<a name="l00702"></a>00702 <span class="stringliteral">"TcaController::ask: error: failed to send ask bundle\n"</span>);
<a name="l00703"></a>00703 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00704"></a>00704 }
<a name="l00705"></a>00705
<a name="l00706"></a>00706 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00707"></a>00707 }
<a name="l00708"></a>00708
<a name="l00709"></a>00709
<a name="l00710"></a>00710 <span class="keywordtype">bool</span>
<a name="l00711"></a><a class="code" href="classTcaController.html#83f104f544ae9e0ba8c1424cf1729f4f">00711</a> <a class="code" href="classTcaController.html#83f104f544ae9e0ba8c1424cf1729f4f">TcaController::get_routes</a>()
<a name="l00712"></a>00712 {
<a name="l00713"></a>00713 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(<span class="stringliteral">"tca://localhost/bundlelayer"</span>, <span class="stringliteral">"get_routes:tca://*"</span>))
<a name="l00714"></a>00714 {
<a name="l00715"></a>00715 fprintf(stderr, <span class="stringliteral">"error: failed to send get_routes bundle\n"</span>);
<a name="l00716"></a>00716 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00717"></a>00717 }
<a name="l00718"></a>00718
<a name="l00719"></a>00719 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00720"></a>00720 }
<a name="l00721"></a>00721
<a name="l00722"></a>00722
<a name="l00723"></a>00723 <span class="keywordtype">bool</span>
<a name="l00724"></a><a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">00724</a> <a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">TcaController::add_route</a>(<span class="keyword">const</span> std::string& route_pattern,
<a name="l00725"></a>00725 <span class="keyword">const</span> std::string& link)
<a name="l00726"></a>00726 {
<a name="l00727"></a>00727 std::string body = <span class="stringliteral">"add_route:"</span>;
<a name="l00728"></a>00728 body += route_pattern;
<a name="l00729"></a>00729 body += <span class="stringliteral">"\t"</span>;
<a name="l00730"></a>00730 body += link;
<a name="l00731"></a>00731
<a name="l00732"></a>00732 <span class="comment">// testing -- try to add a route</span>
<a name="l00733"></a>00733 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(<span class="stringliteral">"tca://localhost/bundlelayer"</span>, body))
<a name="l00734"></a>00734 {
<a name="l00735"></a>00735 fprintf(stderr, <span class="stringliteral">"error: failed to send add_route bundle\n"</span>);
<a name="l00736"></a>00736 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00737"></a>00737 }
<a name="l00738"></a>00738
<a name="l00739"></a>00739 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00740"></a>00740 }
<a name="l00741"></a>00741
<a name="l00742"></a>00742
<a name="l00743"></a>00743 <span class="keywordtype">bool</span>
<a name="l00744"></a><a class="code" href="classTcaController.html#6976d25ddb8ce95d0266c38ae71291c6">00744</a> <a class="code" href="classTcaController.html#6976d25ddb8ce95d0266c38ae71291c6">TcaController::del_route</a>(<span class="keyword">const</span> std::string& route_pattern)
<a name="l00745"></a>00745 {
<a name="l00746"></a>00746 std::string body = <span class="stringliteral">"del_route:"</span>;
<a name="l00747"></a>00747 body += route_pattern;
<a name="l00748"></a>00748
<a name="l00749"></a>00749 <span class="keywordflow">if</span> (!<a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(<span class="stringliteral">"tca://localhost/bundlelayer"</span>, body))
<a name="l00750"></a>00750 {
<a name="l00751"></a>00751 fprintf(stderr, <span class="stringliteral">"error: failed to send del_route bundle\n"</span>);
<a name="l00752"></a>00752 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00753"></a>00753 }
<a name="l00754"></a>00754
<a name="l00755"></a>00755 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00756"></a>00756 }
<a name="l00757"></a>00757
<a name="l00758"></a>00758
<a name="l00759"></a>00759 <span class="keywordtype">bool</span>
<a name="l00760"></a><a class="code" href="classTcaController.html#a3f584822db3b5849279f5104bd0101b">00760</a> <a class="code" href="classTcaController.html#a3f584822db3b5849279f5104bd0101b">TcaController::get_registration</a>(<span class="keyword">const</span> <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a>& eid, <a class="code" href="classRegRecord.html">RegRecord</a>& rr)
<a name="l00761"></a>00761 {
<a name="l00762"></a>00762 rr.<a class="code" href="classRegRecord.html#5674d7072a743fa2fa0278b1bfe95f1f">host_</a> = eid.<a class="code" href="classTcaEndpointID.html#9ae703bd2e55790793f560c8056b39f4">get_hostid</a>();
<a name="l00763"></a>00763 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#675bc13bb46386a123747e8ef9758c11">registry_</a>.<a class="code" href="classTcaRegistry.html#da5526f5cb51fae130787d3f0f33d9b2">read</a>(rr))
<a name="l00764"></a>00764 {
<a name="l00765"></a>00765 printf(<span class="stringliteral">"TcaController: found registry entry %s\n"</span>, rr.<a class="code" href="classRegRecord.html#a3440ae3b19fe6053fdd355a74e46824">str</a>().c_str());
<a name="l00766"></a>00766 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00767"></a>00767 }
<a name="l00768"></a>00768 <span class="keywordflow">else</span>
<a name="l00769"></a>00769 {
<a name="l00770"></a>00770 printf(<span class="stringliteral">"TcaController: no registry entry for host %s\n"</span>,
<a name="l00771"></a>00771 rr.<a class="code" href="classRegRecord.html#5674d7072a743fa2fa0278b1bfe95f1f">host_</a>.c_str());
<a name="l00772"></a>00772 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00773"></a>00773 }
<a name="l00774"></a>00774 }
<a name="l00775"></a>00775
<a name="l00776"></a>00776
<a name="l00777"></a>00777 <span class="comment">// TODO: Make this async, with periodic refresh</span>
<a name="l00778"></a>00778 <span class="keywordtype">bool</span>
<a name="l00779"></a><a class="code" href="classTcaController.html#6d4f7abe8827a35ed31af39d448de05a">00779</a> <a class="code" href="classTcaController.html#6d4f7abe8827a35ed31af39d448de05a">TcaController::do_registration</a>(<span class="keyword">const</span> <a class="code" href="classTcaEndpointID.html">TcaEndpointID</a>& eid,
<a name="l00780"></a>00780 <span class="keyword">const</span> std::string& link_addr)
<a name="l00781"></a>00781 {
<a name="l00782"></a>00782 <a class="code" href="classRegRecord.html">RegRecord</a> rr(eid.<a class="code" href="classTcaEndpointID.html#9ae703bd2e55790793f560c8056b39f4">get_hostid</a>(), link_addr);
<a name="l00783"></a>00783
<a name="l00784"></a>00784 <span class="keywordflow">if</span> (<a class="code" href="classTcaController.html#675bc13bb46386a123747e8ef9758c11">registry_</a>.<a class="code" href="classTcaRegistry.html#7058ce3cde01133881d41a5c5c96958b">write</a>(rr, <a class="code" href="classTcaController.html#700c1a4b636290ad2e1fd4aa9d725be3">registry_ttl_</a>))
<a name="l00785"></a>00785 {
<a name="l00786"></a>00786 printf(<span class="stringliteral">"TcaController: wrote registry entry %s\n"</span>, rr.str().c_str());
<a name="l00787"></a>00787 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00788"></a>00788 }
<a name="l00789"></a>00789 <span class="keywordflow">else</span>
<a name="l00790"></a>00790 {
<a name="l00791"></a>00791 printf(<span class="stringliteral">"TcaController: failed to write registry entry %s\n"</span>,
<a name="l00792"></a>00792 rr.str().c_str());
<a name="l00793"></a>00793 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00794"></a>00794 }
<a name="l00795"></a>00795
<a name="l00796"></a>00796 }
<a name="l00797"></a>00797
<a name="l00798"></a>00798
<a name="l00799"></a>00799 <span class="keywordtype">bool</span>
<a name="l00800"></a><a class="code" href="classTcaController.html#c4aa87a351f76bcf94df135e8a0ac8c4">00800</a> <a class="code" href="classTcaController.html#c4aa87a351f76bcf94df135e8a0ac8c4">TcaController::test_all</a>()
<a name="l00801"></a>00801 {
<a name="l00802"></a>00802 <a class="code" href="classTcaController.html#83f104f544ae9e0ba8c1424cf1729f4f">get_routes</a>();
<a name="l00803"></a>00803
<a name="l00804"></a>00804 <a class="code" href="classTcaController.html#393c49f6b040129a5ef2527cd31451c7">add_route</a>(<span class="stringliteral">"tca://booyah"</span>, <span class="stringliteral">"tcp://9.8.7.6:54321"</span>);
<a name="l00805"></a>00805 sleep(5);
<a name="l00806"></a>00806
<a name="l00807"></a>00807 <a class="code" href="classTcaController.html#83f104f544ae9e0ba8c1424cf1729f4f">get_routes</a>();
<a name="l00808"></a>00808
<a name="l00809"></a>00809 <a class="code" href="classTcaController.html#6976d25ddb8ce95d0266c38ae71291c6">del_route</a>(<span class="stringliteral">"tca://booyah"</span>);
<a name="l00810"></a>00810 sleep(5);
<a name="l00811"></a>00811
<a name="l00812"></a>00812 <a class="code" href="classTcaController.html#83f104f544ae9e0ba8c1424cf1729f4f">get_routes</a>();
<a name="l00813"></a>00813
<a name="l00814"></a>00814 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00815"></a>00815 }
<a name="l00816"></a>00816
<a name="l00817"></a>00817
<a name="l00818"></a>00818 <span class="keywordtype">void</span>
<a name="l00819"></a><a class="code" href="classTcaController.html#76c47ed1b44f6520c02aa75c23818ddb">00819</a> <a class="code" href="classTcaController.html#76c47ed1b44f6520c02aa75c23818ddb">TcaController::eat_bundles</a>(<span class="keywordtype">bool</span> <a class="code" href="dtncat_8c.html#0b2caeb4b6f130be43e5a2f0267dd453">verbose</a>)
<a name="l00820"></a>00820 {
<a name="l00821"></a>00821 <span class="comment">// check for any bundles queued for this registration and discard them.</span>
<a name="l00822"></a>00822
<a name="l00823"></a>00823 <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a> recv_spec;
<a name="l00824"></a>00824 std::string payload;
<a name="l00825"></a>00825
<a name="l00826"></a>00826 printf(<span class="stringliteral">"checking for queued bundles...\n"</span>);
<a name="l00827"></a>00827
<a name="l00828"></a>00828 <span class="keywordflow">if</span> (verbose)
<a name="l00829"></a>00829 {
<a name="l00830"></a>00830 <span class="keywordflow">while</span> (<a class="code" href="classTcaController.html#ef574d237daad310d9e9fb0eed5c36eb">recv_bundle</a>(recv_spec, payload, 0))
<a name="l00831"></a>00831 printf(<span class="stringliteral">" discarding bundle: %s\n"</span>, payload.c_str());
<a name="l00832"></a>00832 }
<a name="l00833"></a>00833 <span class="keywordflow">else</span>
<a name="l00834"></a>00834 {
<a name="l00835"></a>00835 <a class="code" href="structdtn__bundle__payload__t.html">dtn_bundle_payload_t</a> recv_payload;
<a name="l00836"></a>00836 <span class="keywordtype">int</span> ret;
<a name="l00837"></a>00837 <span class="keywordflow">do</span>
<a name="l00838"></a>00838 {
<a name="l00839"></a>00839 memset(&recv_spec, 0, <span class="keyword">sizeof</span>(recv_spec));
<a name="l00840"></a>00840 memset(&recv_payload, 0, <span class="keyword">sizeof</span>(recv_payload));
<a name="l00841"></a>00841
<a name="l00842"></a>00842 ret = <a class="code" href="dtn__api_8c.html#7005346bb34aabb5b6332690871fe3f4" title="Blocking receive for a bundle, filling in the spec and payload structures with the...">dtn_recv</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>, &recv_spec,
<a name="l00843"></a>00843 <a class="code" href="dtn__types_8h.html#3dcfddc1b850a71a18d8a0868f67e7628f773bbfb80857bd5a11f09665fa9b03">DTN_PAYLOAD_MEM</a>, &recv_payload, 0);
<a name="l00844"></a>00844
<a name="l00845"></a>00845 <span class="keywordflow">if</span> (ret == 0)
<a name="l00846"></a>00846 {
<a name="l00847"></a>00847 fprintf(stderr, <span class="stringliteral">"error: unexpected bundle already queued... "</span>
<a name="l00848"></a>00848 <span class="stringliteral">"discarding\n"</span>);
<a name="l00849"></a>00849 }
<a name="l00850"></a>00850 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="dtn__api_8c.html#6183d81d5f742d13e1fdee26423d94b4" title="Get the error associated with the given handle.">dtn_errno</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>) != <a class="code" href="dtn__errno_8h.html#35b24187121ca003154518bba0a35e75">DTN_ETIMEOUT</a>)
<a name="l00851"></a>00851 {
<a name="l00852"></a>00852 fprintf(stderr, <span class="stringliteral">"error: "</span>
<a name="l00853"></a>00853 <span class="stringliteral">"unexpected error checking for queued bundles: %s\n"</span>,
<a name="l00854"></a>00854 <a class="code" href="dtn__errno_8c.html#1b23d549407e59e3ce2a1c32e3885b1d" title="Get a string value associated with the dtn error code.">dtn_strerror</a>(<a class="code" href="dtn__api_8c.html#6183d81d5f742d13e1fdee26423d94b4" title="Get the error associated with the given handle.">dtn_errno</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>)));
<a name="l00855"></a>00855 <span class="keywordflow">return</span>;
<a name="l00856"></a>00856 }
<a name="l00857"></a>00857 } <span class="keywordflow">while</span> (ret == 0);
<a name="l00858"></a>00858 }
<a name="l00859"></a>00859 }
<a name="l00860"></a>00860
<a name="l00861"></a>00861
<a name="l00862"></a>00862 <span class="keywordtype">bool</span>
<a name="l00863"></a><a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">00863</a> <a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">TcaController::send_bundle</a>(<span class="keyword">const</span> <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00864"></a>00864 <span class="keyword">const</span> std::string& payload)
<a name="l00865"></a>00865 {
<a name="l00866"></a>00866 printf(<span class="stringliteral">"send_bundle: [%s] -> [%s] : '%s'\n"</span>,
<a name="l00867"></a>00867 spec.<a class="code" href="structdtn__bundle__spec__t.html#3e0a3530457d11bea38b06d00dea30fa">source</a>.<a class="code" href="structdtn__endpoint__id__t.html#d2e7d5788ae778c77b4041f1f8b1dc80">uri</a>, spec.<a class="code" href="structdtn__bundle__spec__t.html#8c2816b3ce9b92489b3b34c325a4cb4c">dest</a>.<a class="code" href="structdtn__endpoint__id__t.html#d2e7d5788ae778c77b4041f1f8b1dc80">uri</a>, payload.c_str());
<a name="l00868"></a>00868
<a name="l00869"></a>00869 <a class="code" href="structdtn__bundle__payload__t.html">dtn_bundle_payload_t</a> send_payload;
<a name="l00870"></a>00870 memset(&send_payload, 0, <span class="keyword">sizeof</span>(send_payload));
<a name="l00871"></a>00871 <a class="code" href="dtn__api_8c.html#21b6d705673aae970524972aca3db99f" title="Sets the value of the given payload structure to either a memory buffer or a file...">dtn_set_payload</a>(&send_payload, <a class="code" href="dtn__types_8h.html#3dcfddc1b850a71a18d8a0868f67e7628f773bbfb80857bd5a11f09665fa9b03">DTN_PAYLOAD_MEM</a>,
<a name="l00872"></a>00872 const_cast<char*>(payload.c_str()), payload.length());
<a name="l00873"></a>00873
<a name="l00874"></a>00874 <a class="code" href="structdtn__bundle__id__t.html" title="Type definition for a unique bundle identifier.">dtn_bundle_id_t</a> <a class="code" href="dtncat_8c.html#0d43174f8d3844aa5df38af2712ccb00">bundle_id</a>;
<a name="l00875"></a>00875 memset(&bundle_id, 0, <span class="keyword">sizeof</span>(bundle_id));
<a name="l00876"></a>00876
<a name="l00877"></a>00877 <span class="keywordtype">int</span> r = 0;
<a name="l00878"></a>00878 <span class="keywordflow">if</span> ((r = <a class="code" href="dtn__api_8c.html#9bcce797cfff268e49c0f5b2e5f21788" title="Send a bundle either from memory or from a file.">dtn_send</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>, <a class="code" href="dtn__types_8h.html#f96cd9cebfff24e37ccececf05ebb4e6" title="Value for an unspecified registration cookie (i.e.">DTN_REGID_NONE</a>,
<a name="l00879"></a>00879 const_cast<dtn_bundle_spec_t*>(&spec),
<a name="l00880"></a>00880 &send_payload, &bundle_id)) != 0)
<a name="l00881"></a>00881 {
<a name="l00882"></a>00882 fprintf(stderr, <span class="stringliteral">"TcaController::send_bundle error %d (%s)\n"</span>,
<a name="l00883"></a>00883 r, <a class="code" href="dtn__errno_8c.html#1b23d549407e59e3ce2a1c32e3885b1d" title="Get a string value associated with the dtn error code.">dtn_strerror</a>(<a class="code" href="dtn__api_8c.html#6183d81d5f742d13e1fdee26423d94b4" title="Get the error associated with the given handle.">dtn_errno</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>)));
<a name="l00884"></a>00884 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00885"></a>00885 }
<a name="l00886"></a>00886
<a name="l00887"></a>00887 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00888"></a>00888 }
<a name="l00889"></a>00889
<a name="l00890"></a>00890
<a name="l00891"></a>00891 <span class="keywordtype">bool</span>
<a name="l00892"></a><a class="code" href="classTcaController.html#ef574d237daad310d9e9fb0eed5c36eb">00892</a> <a class="code" href="classTcaController.html#ef574d237daad310d9e9fb0eed5c36eb">TcaController::recv_bundle</a>(<a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a>& spec,
<a name="l00893"></a>00893 std::string& payload,
<a name="l00894"></a>00894 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> timeout)
<a name="l00895"></a>00895 {
<a name="l00896"></a>00896 <a class="code" href="structdtn__bundle__payload__t.html">dtn_bundle_payload_t</a> recv_payload;
<a name="l00897"></a>00897 memset(&spec, 0, <span class="keyword">sizeof</span>(spec));
<a name="l00898"></a>00898 memset(&recv_payload, 0, <span class="keyword">sizeof</span>(recv_payload));
<a name="l00899"></a>00899
<a name="l00900"></a>00900 <span class="comment">// now we block waiting for the echo reply</span>
<a name="l00901"></a>00901 <span class="comment">// DK: original timeout was -1, causes compile warning with gcc</span>
<a name="l00902"></a>00902 <span class="keywordtype">int</span> r;
<a name="l00903"></a>00903 <span class="keywordflow">if</span> ((r = <a class="code" href="dtn__api_8c.html#7005346bb34aabb5b6332690871fe3f4" title="Blocking receive for a bundle, filling in the spec and payload structures with the...">dtn_recv</a>(<a class="code" href="classTcaController.html#92d3ca7aa6abe45823166f5286cdb74b">handle_</a>, &spec,
<a name="l00904"></a>00904 <a class="code" href="dtn__types_8h.html#3dcfddc1b850a71a18d8a0868f67e7628f773bbfb80857bd5a11f09665fa9b03">DTN_PAYLOAD_MEM</a>, &recv_payload, timeout)) < 0)
<a name="l00905"></a>00905 {
<a name="l00906"></a>00906 <span class="comment">// fprintf(stderr, "TcaController::recv_bundle error %d (%s)\n",</span>
<a name="l00907"></a>00907 <span class="comment">// r, dtn_strerror(dtn_errno(handle_)));</span>
<a name="l00908"></a>00908 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00909"></a>00909 }
<a name="l00910"></a>00910
<a name="l00911"></a>00911 <span class="keywordtype">int</span> n = recv_payload.<a class="code" href="structdtn__bundle__payload__t.html#04e8c46c5b40f187e1fefed80853cc5c">buf</a>.<a class="code" href="structdtn__bundle__payload__t.html#c20a1cf6010dbd5855140373da5ce8c3">buf_len</a>;
<a name="l00912"></a>00912 <span class="keywordtype">char</span> s_buf[n+1];
<a name="l00913"></a>00913 memcpy(s_buf, recv_payload.<a class="code" href="structdtn__bundle__payload__t.html#04e8c46c5b40f187e1fefed80853cc5c">buf</a>.<a class="code" href="structdtn__bundle__payload__t.html#45cd21fd96fced99995450f0fca848d5">buf_val</a>, n);
<a name="l00914"></a>00914 s_buf[n] = <span class="charliteral">'\0'</span>;
<a name="l00915"></a>00915
<a name="l00916"></a>00916 payload = s_buf;
<a name="l00917"></a>00917
<a name="l00918"></a>00918 printf(<span class="stringliteral">"%d bytes from [%s]: %s\n"</span>,
<a name="l00919"></a>00919 <span class="comment">// recv_payload.buf.buf_len,</span>
<a name="l00920"></a>00920 n,
<a name="l00921"></a>00921 spec.<a class="code" href="structdtn__bundle__spec__t.html#3e0a3530457d11bea38b06d00dea30fa">source</a>.<a class="code" href="structdtn__endpoint__id__t.html#d2e7d5788ae778c77b4041f1f8b1dc80">uri</a>,
<a name="l00922"></a>00922 payload.c_str());
<a name="l00923"></a>00923
<a name="l00924"></a>00924 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00925"></a>00925 }
<a name="l00926"></a>00926
<a name="l00927"></a>00927
<a name="l00928"></a>00928 <span class="comment">// a more convenient send, using reasonable defaults for most args</span>
<a name="l00929"></a>00929 <span class="keywordtype">bool</span>
<a name="l00930"></a><a class="code" href="classTcaController.html#b1080795a3a3d23b1db9bdb2b31756da">00930</a> <a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">TcaController::send_bundle</a>(<span class="keyword">const</span> std::string& dest,
<a name="l00931"></a>00931 <span class="keyword">const</span> std::string& payload)
<a name="l00932"></a>00932 {
<a name="l00933"></a>00933 <span class="comment">// printf("send_bundle: [%s] -> [%s] : '%s'\n",</span>
<a name="l00934"></a>00934 <span class="comment">// local_eid_.uri, dest.c_str(), payload.c_str());</span>
<a name="l00935"></a>00935
<a name="l00936"></a>00936 <a class="code" href="structdtn__bundle__spec__t.html" title="Bundle metadata.">dtn_bundle_spec_t</a> spec;
<a name="l00937"></a>00937 memset(&spec, 0, <span class="keyword">sizeof</span>(spec));
<a name="l00938"></a>00938
<a name="l00939"></a>00939 <span class="comment">// set the source and reply_to to be the local eid</span>
<a name="l00940"></a>00940 <a class="code" href="dtn__api_8c.html#b2935a9a7f4ade630f7d2ad1fec5c615" title="Copy the contents of one eid into another.">dtn_copy_eid</a>(&spec.<a class="code" href="structdtn__bundle__spec__t.html#3e0a3530457d11bea38b06d00dea30fa">source</a>, &<a class="code" href="classTcaController.html#7cf3bdaa873e2f9364e2d8ae494917b0">local_eid_</a>);
<a name="l00941"></a>00941 <a class="code" href="dtn__api_8c.html#b2935a9a7f4ade630f7d2ad1fec5c615" title="Copy the contents of one eid into another.">dtn_copy_eid</a>(&spec.<a class="code" href="structdtn__bundle__spec__t.html#f76b43d28b76b155d48df0abe82c6913">replyto</a>, &<a class="code" href="classTcaController.html#7cf3bdaa873e2f9364e2d8ae494917b0">local_eid_</a>);
<a name="l00942"></a>00942
<a name="l00943"></a>00943 <span class="keywordflow">if</span> (<a class="code" href="dtn__api_8c.html#055c8bb8eaa570aacbe6a164ff123c84" title="Parse a string into an endpoint id structure, validating that it is in fact a valid...">dtn_parse_eid_string</a>(&spec.<a class="code" href="structdtn__bundle__spec__t.html#8c2816b3ce9b92489b3b34c325a4cb4c">dest</a>, dest.c_str()))
<a name="l00944"></a>00944 {
<a name="l00945"></a>00945 fprintf(stderr, <span class="stringliteral">"TcaController::send_bundle: invalid destination"</span>
<a name="l00946"></a>00946 <span class="stringliteral">" eid string, %s\n"</span>, dest.c_str());
<a name="l00947"></a>00947 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00948"></a>00948 }
<a name="l00949"></a>00949
<a name="l00950"></a>00950 <span class="comment">// set the expiration time and the return receipt option</span>
<a name="l00951"></a>00951 spec.<a class="code" href="structdtn__bundle__spec__t.html#f44519876b50a9f0b0eb242bea1ed158">priority</a> = <a class="code" href="dtn__types_8h.html#993858e35739619750a07d5dc1c275e0f5a0479d0c742791ecd3827d8bf82bfc">COS_NORMAL</a>;
<a name="l00952"></a>00952 spec.<a class="code" href="structdtn__bundle__spec__t.html#476482803410f3a19b40cbff91e1e56c">dopts</a> = <a class="code" href="dtn__types_8h.html#ed7af5cc4e44a2ced1acdee4e441f000cb6b7eb0422ee4f6c87a4c1dd3cecee5">DOPTS_NONE</a>;
<a name="l00953"></a>00953 spec.<a class="code" href="structdtn__bundle__spec__t.html#57f2d6068db6a5b38a73416ea721e814">expiration</a> = <a class="code" href="classTcaController.html#a4a97611ac28e1ae6f235ff12118bda2">control_ttl_</a>;
<a name="l00954"></a>00954
<a name="l00955"></a>00955 <span class="keywordflow">return</span> <a class="code" href="classTcaController.html#c0c07b7427bb190871fc75b357601c7b">send_bundle</a>(spec, payload);
<a name="l00956"></a>00956 }
<a name="l00957"></a>00957
<a name="l00958"></a>00958
<a name="l00959"></a>00959
</pre></div></div>
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