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<h1>C_BlockProcessor.cc</h1><a href="C__BlockProcessor_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright 2006 SPARTA Inc</span>
<a name="l00003"></a>00003 <span class="comment"> * </span>
<a name="l00004"></a>00004 <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</span>
<a name="l00005"></a>00005 <span class="comment"> * you may not use this file except in compliance with the License.</span>
<a name="l00006"></a>00006 <span class="comment"> * You may obtain a copy of the License at</span>
<a name="l00007"></a>00007 <span class="comment"> * </span>
<a name="l00008"></a>00008 <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span>
<a name="l00009"></a>00009 <span class="comment"> * </span>
<a name="l00010"></a>00010 <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span>
<a name="l00011"></a>00011 <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
<a name="l00012"></a>00012 <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<a name="l00013"></a>00013 <span class="comment"> * See the License for the specific language governing permissions and</span>
<a name="l00014"></a>00014 <span class="comment"> * limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment"> */</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor"># include <<a class="code" href="dtn-config_8h.html">dtn-config.h</a>></span>
<a name="l00019"></a>00019 <span class="preprocessor">#endif</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#ifdef BSP_ENABLED</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="C__BlockProcessor_8h.html">C_BlockProcessor.h</a>"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="bundling_2Bundle_8h.html">bundling/Bundle.h</a>"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="BundleDaemon_8h.html">bundling/BundleDaemon.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="BundleProtocol_8h.html">bundling/BundleProtocol.h</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="contacts_2Link_8h.html">contacts/Link.h</a>"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "openssl/evp.h"</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keyword">namespace </span>dtn {
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * <a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a> = <span class="stringliteral">"/dtn/bundle/ciphersuite"</span>;
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00035"></a>00035 C_BlockProcessor::C_BlockProcessor()
<a name="l00036"></a>00036 : BlockProcessor(BundleProtocol::CONFIDENTIALITY_BLOCK)
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00041"></a>00041 <span class="keywordtype">int</span>
<a name="l00042"></a>00042 C_BlockProcessor::consume(Bundle* bundle, BlockInfo* block,
<a name="l00043"></a>00043 u_char* <a class="code" href="num2sdnv_8c.html#a81cdcc7ff6987bc85c073253e32715f">buf</a>, <span class="keywordtype">size_t</span> <a class="code" href="num2sdnv_8c.html#fed088663f8704004425cdae2120b9b3">len</a>)
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 <span class="keywordtype">int</span> cc = BlockProcessor::consume(bundle, block, buf, len);
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keywordflow">if</span> (cc == -1) {
<a name="l00048"></a>00048 <span class="keywordflow">return</span> -1; <span class="comment">// protocol error</span>
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="comment">// in on-the-fly scenario, process this data for those interested</span>
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keywordflow">if</span> (! block->complete()) {
<a name="l00055"></a>00055 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(cc == (<span class="keywordtype">int</span>)len);
<a name="l00056"></a>00056 <span class="keywordflow">return</span> cc;
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keywordflow">if</span> ( block->locals() == NULL ) { <span class="comment">// then we need to parse it</span>
<a name="l00060"></a>00060 Ciphersuite::parse(block);
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordflow">return</span> cc;
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00067"></a>00067 <span class="keywordtype">int</span>
<a name="l00068"></a>00068 C_BlockProcessor::reload_post_process(Bundle* bundle,
<a name="l00069"></a>00069 BlockInfoVec* block_list,
<a name="l00070"></a>00070 BlockInfo* block)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">// Received blocks might be stored and reloaded and</span>
<a name="l00074"></a>00074 <span class="comment">// some fields aren't reset.</span>
<a name="l00075"></a>00075 <span class="comment">// This allows BlockProcessors to reestablish what they</span>
<a name="l00076"></a>00076 <span class="comment">// need</span>
<a name="l00077"></a>00077
<a name="l00078"></a>00078 Ciphersuite* p = NULL;
<a name="l00079"></a>00079 <span class="keywordtype">int</span> err = 0;
<a name="l00080"></a>00080 <span class="keywordtype">int</span> <a class="code" href="classprophet_1_1BundleEntryList.html#caf703e147911a7b98754bd961bbeeb4" title="Return type of entries hosted by this list.">type</a> = 0;
<a name="l00081"></a>00081 BP_Local_CS* locals;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keywordflow">if</span> ( ! block->reloaded() )
<a name="l00084"></a>00084 <span class="keywordflow">return</span> 0;
<a name="l00085"></a>00085
<a name="l00086"></a>00086 type = block->type();
<a name="l00087"></a>00087 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::reload block type %d"</span>, type);
<a name="l00088"></a>00088
<a name="l00089"></a>00089 Ciphersuite::parse(block);
<a name="l00090"></a>00090 locals = <span class="keyword">dynamic_cast<</span>BP_Local_CS*<span class="keyword">></span>(block->locals());
<a name="l00091"></a>00091 CS_FAIL_IF_NULL(locals);
<a name="l00092"></a>00092
<a name="l00093"></a>00093 p = Ciphersuite::find_suite( locals->owner_cs_num() );
<a name="l00094"></a>00094 <span class="keywordflow">if</span> ( p != NULL )
<a name="l00095"></a>00095 err = p->reload_post_process(bundle, block_list, block);
<a name="l00096"></a>00096
<a name="l00097"></a>00097 block->set_reloaded(<span class="keyword">false</span>);
<a name="l00098"></a>00098 <span class="keywordflow">return</span> err;
<a name="l00099"></a>00099
<a name="l00100"></a>00100 fail:
<a name="l00101"></a>00101 <span class="keywordflow">if</span> ( locals != NULL )
<a name="l00102"></a>00102 locals->set_proc_flag(Ciphersuite::CS_BLOCK_PROCESSING_FAILED_DO_NOT_SEND);
<a name="l00103"></a>00103 <span class="keywordflow">return</span> <a class="code" href="BlockProcessor_8h.html#cce9a45a37bad1da41648533b0e15457">BP_FAIL</a>;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00107"></a>00107 <span class="keywordtype">bool</span>
<a name="l00108"></a>00108 C_BlockProcessor::validate(<span class="keyword">const</span> Bundle* bundle,
<a name="l00109"></a>00109 BlockInfoVec* block_list,
<a name="l00110"></a>00110 BlockInfo* block,
<a name="l00111"></a>00111 status_report_reason_t* reception_reason,
<a name="l00112"></a>00112 status_report_reason_t* deletion_reason)
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114 (void)bundle;
<a name="l00115"></a>00115 (void)block_list;
<a name="l00116"></a>00116 (void)block;
<a name="l00117"></a>00117 (void)reception_reason;
<a name="l00118"></a>00118 (void)deletion_reason;
<a name="l00119"></a>00119
<a name="l00120"></a>00120 Ciphersuite* p = NULL;
<a name="l00121"></a>00121 u_int16_t cs_flags = 0;
<a name="l00122"></a>00122 EndpointID local_eid = BundleDaemon::instance()->local_eid();
<a name="l00123"></a>00123 BP_Local_CS* locals = <span class="keyword">dynamic_cast<</span>BP_Local_CS*<span class="keyword">></span>(block->locals());
<a name="l00124"></a>00124 <span class="keywordtype">bool</span> result = <span class="keyword">false</span>;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 CS_FAIL_IF_NULL(locals);
<a name="l00127"></a>00127
<a name="l00128"></a>00128
<a name="l00129"></a>00129 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::validate() %p ciphersuite %d"</span>,
<a name="l00130"></a>00130 block, locals->owner_cs_num());
<a name="l00131"></a>00131 cs_flags = locals->cs_flags();
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordflow">if</span> ( Ciphersuite::destination_is_local_node(bundle, block) )
<a name="l00134"></a>00134 { <span class="comment">//yes - this is ours </span>
<a name="l00135"></a>00135
<a name="l00136"></a>00136 p = Ciphersuite::find_suite( locals->owner_cs_num() );
<a name="l00137"></a>00137 <span class="keywordflow">if</span> ( p != NULL ) {
<a name="l00138"></a>00138 result = p->validate(bundle, block_list, block,
<a name="l00139"></a>00139 reception_reason, deletion_reason);
<a name="l00140"></a>00140 <span class="keywordflow">return</span> result;
<a name="l00141"></a>00141 } <span class="keywordflow">else</span> {
<a name="l00142"></a>00142 <a class="code" href="SDNV_8cc.html#3f24cadc9f28aba33472df0500092dcb">log_err_p</a>(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"block failed security validation C_BlockProcessor"</span>);
<a name="l00143"></a>00143 *deletion_reason = BundleProtocol::REASON_SECURITY_FAILED;
<a name="l00144"></a>00144 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146 } <span class="keywordflow">else</span> {
<a name="l00147"></a>00147 <span class="comment">// not for here so we didn't check this block</span>
<a name="l00148"></a>00148 locals->set_proc_flag(Ciphersuite::CS_BLOCK_DID_NOT_FAIL);
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00152"></a>00152
<a name="l00153"></a>00153 fail:
<a name="l00154"></a>00154 <span class="keywordflow">if</span> ( locals != NULL )
<a name="l00155"></a>00155 locals->set_proc_flag(Ciphersuite::CS_BLOCK_FAILED_VALIDATION |
<a name="l00156"></a>00156 Ciphersuite::CS_BLOCK_COMPLETED_DO_NOT_FORWARD);
<a name="l00157"></a>00157 *deletion_reason = BundleProtocol::REASON_SECURITY_FAILED;
<a name="l00158"></a>00158 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00162"></a>00162 <span class="keywordtype">int</span>
<a name="l00163"></a>00163 C_BlockProcessor::prepare(<span class="keyword">const</span> Bundle* bundle,
<a name="l00164"></a>00164 BlockInfoVec* xmit_blocks,
<a name="l00165"></a>00165 <span class="keyword">const</span> BlockInfo* source,
<a name="l00166"></a>00166 <span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>& link,
<a name="l00167"></a>00167 list_owner_t list)
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 (void)bundle;
<a name="l00170"></a>00170 (void)link;
<a name="l00171"></a>00171 (void)list;
<a name="l00172"></a>00172
<a name="l00173"></a>00173 Ciphersuite* p = NULL;
<a name="l00174"></a>00174 <span class="keywordtype">int</span> result = <a class="code" href="BlockProcessor_8h.html#cce9a45a37bad1da41648533b0e15457">BP_FAIL</a>;
<a name="l00175"></a>00175 BP_Local_CS* locals = NULL;
<a name="l00176"></a>00176 BP_Local_CS* source_locals = NULL;
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="keywordflow">if</span> ( list == BlockInfo::LIST_RECEIVED ) {
<a name="l00179"></a>00179
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="comment">// XXX/pl review this to see how much is actually needed</span>
<a name="l00182"></a>00182
<a name="l00183"></a>00183
<a name="l00184"></a>00184 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(source != NULL);
<a name="l00185"></a>00185 u_int16_t cs_flags = 0;
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordflow">if</span> ( Ciphersuite::destination_is_local_node(bundle, source) )
<a name="l00188"></a>00188 <span class="keywordflow">return</span> <a class="code" href="BlockProcessor_8h.html#446572d61c813971cb4d5ce4ee1b9c0b">BP_SUCCESS</a>; <span class="comment">//don't forward if it's for here</span>
<a name="l00189"></a>00189
<a name="l00190"></a>00190 xmit_blocks->push_back(BlockInfo(<span class="keyword">this</span>, source));
<a name="l00191"></a>00191 BlockInfo* bp = &(xmit_blocks->back());
<a name="l00192"></a>00192 bp->set_eid_list(source->eid_list());
<a name="l00193"></a>00193 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::prepare() - forward received block len %u"</span>,
<a name="l00194"></a>00194 source->full_length());
<a name="l00195"></a>00195
<a name="l00196"></a>00196
<a name="l00197"></a>00197 CS_FAIL_IF_NULL( source->locals() ); <span class="comment">// broken</span>
<a name="l00198"></a>00198
<a name="l00199"></a>00199 source_locals = <span class="keyword">dynamic_cast<</span>BP_Local_CS*<span class="keyword">></span>(source->locals());
<a name="l00200"></a>00200 CS_FAIL_IF_NULL(source_locals);
<a name="l00201"></a>00201 bp->set_locals(<span class="keyword">new</span> BP_Local_CS);
<a name="l00202"></a>00202 locals = <span class="keyword">dynamic_cast<</span>BP_Local_CS*<span class="keyword">></span>(bp->locals());
<a name="l00203"></a>00203 CS_FAIL_IF_NULL(locals);
<a name="l00204"></a>00204 locals->set_owner_cs_num(source_locals->owner_cs_num());
<a name="l00205"></a>00205 cs_flags = source_locals->cs_flags();
<a name="l00206"></a>00206 locals->set_correlator(source_locals->correlator());
<a name="l00207"></a>00207 locals->set_list_owner(BlockInfo::LIST_RECEIVED);
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="comment">// copy security-src and -dest if they exist</span>
<a name="l00210"></a>00210 <span class="keywordflow">if</span> ( source_locals->cs_flags() & Ciphersuite::CS_BLOCK_HAS_SOURCE ) {
<a name="l00211"></a>00211 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(source_locals->security_src().length() > 0 );
<a name="l00212"></a>00212 cs_flags |= Ciphersuite::CS_BLOCK_HAS_SOURCE;
<a name="l00213"></a>00213 locals->set_security_src(source_locals->security_src());
<a name="l00214"></a>00214 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::prepare() add security_src EID %s"</span>,
<a name="l00215"></a>00215 source_locals->security_src().c_str());
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a>00218 <span class="keywordflow">if</span> ( source_locals->cs_flags() & Ciphersuite::CS_BLOCK_HAS_DEST ) {
<a name="l00219"></a>00219 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(source_locals->security_dest().length() > 0 );
<a name="l00220"></a>00220 cs_flags |= Ciphersuite::CS_BLOCK_HAS_DEST;
<a name="l00221"></a>00221 locals->set_security_dest(source_locals->security_dest());
<a name="l00222"></a>00222 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::prepare() add security_dest EID %s"</span>,
<a name="l00223"></a>00223 source_locals->security_dest().c_str());
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225 locals->set_cs_flags(cs_flags);
<a name="l00226"></a>00226 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::prepare() - inserted block eid_list_count %zu"</span>,
<a name="l00227"></a>00227 bp->eid_list().size());
<a name="l00228"></a>00228 result = <a class="code" href="BlockProcessor_8h.html#446572d61c813971cb4d5ce4ee1b9c0b">BP_SUCCESS</a>;
<a name="l00229"></a>00229 } <span class="keywordflow">else</span> {
<a name="l00230"></a>00230 <span class="keywordflow">if</span> ( source != NULL ) {
<a name="l00231"></a>00231 source_locals = <span class="keyword">dynamic_cast<</span>BP_Local_CS*<span class="keyword">></span>(source->locals());
<a name="l00232"></a>00232 CS_FAIL_IF_NULL(source_locals);
<a name="l00233"></a>00233 p = Ciphersuite::find_suite( source_locals->owner_cs_num() );
<a name="l00234"></a>00234 <span class="keywordflow">if</span> ( p != NULL ) {
<a name="l00235"></a>00235 result = p->prepare(bundle, xmit_blocks, source, link, list);
<a name="l00236"></a>00236 } <span class="keywordflow">else</span> {
<a name="l00237"></a>00237 <a class="code" href="SDNV_8cc.html#3f24cadc9f28aba33472df0500092dcb">log_err_p</a>(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::prepare() - ciphersuite %d is missing"</span>,
<a name="l00238"></a>00238 source_locals->owner_cs_num());
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240 } <span class="comment">// no msg if "source" is NULL, as BundleProtocol calls all BPs that way once</span>
<a name="l00241"></a>00241 }
<a name="l00242"></a>00242 <span class="keywordflow">return</span> result;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 fail:
<a name="l00245"></a>00245 <span class="keywordflow">if</span> ( locals != NULL )
<a name="l00246"></a>00246 locals->set_proc_flag(Ciphersuite::CS_BLOCK_PROCESSING_FAILED_DO_NOT_SEND);
<a name="l00247"></a>00247 <span class="keywordflow">return</span> <a class="code" href="BlockProcessor_8h.html#cce9a45a37bad1da41648533b0e15457">BP_FAIL</a>;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249
<a name="l00250"></a>00250 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00251"></a>00251 <span class="keywordtype">int</span>
<a name="l00252"></a>00252 C_BlockProcessor::generate(<span class="keyword">const</span> Bundle* bundle,
<a name="l00253"></a>00253 BlockInfoVec* xmit_blocks,
<a name="l00254"></a>00254 BlockInfo* block,
<a name="l00255"></a>00255 <span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>& link,
<a name="l00256"></a>00256 <span class="keywordtype">bool</span> last)
<a name="l00257"></a>00257 {
<a name="l00258"></a>00258 (void)bundle;
<a name="l00259"></a>00259 (void)link;
<a name="l00260"></a>00260 (void)xmit_blocks;
<a name="l00261"></a>00261
<a name="l00262"></a>00262 Ciphersuite* p = NULL;
<a name="l00263"></a>00263 <span class="keywordtype">int</span> result = <a class="code" href="BlockProcessor_8h.html#cce9a45a37bad1da41648533b0e15457">BP_FAIL</a>;
<a name="l00264"></a>00264 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::generate()"</span>);
<a name="l00265"></a>00265
<a name="l00266"></a>00266 BP_Local_CS* locals = <span class="keyword">dynamic_cast<</span>BP_Local_CS*<span class="keyword">></span>(block->locals());
<a name="l00267"></a>00267 CS_FAIL_IF_NULL(locals);
<a name="l00268"></a>00268
<a name="l00269"></a>00269 p = Ciphersuite::find_suite( locals->owner_cs_num() );
<a name="l00270"></a>00270 <span class="keywordflow">if</span> ( p != NULL ) {
<a name="l00271"></a>00271 result = p->generate(bundle, xmit_blocks, block, link, last);
<a name="l00272"></a>00272 } <span class="keywordflow">else</span> {
<a name="l00273"></a>00273 <span class="comment">// generate the preamble and copy the data.</span>
<a name="l00274"></a>00274 <span class="keywordtype">size_t</span> length = block->source()->data_length();
<a name="l00275"></a>00275
<a name="l00276"></a>00276 generate_preamble(xmit_blocks,
<a name="l00277"></a>00277 block,
<a name="l00278"></a>00278 BundleProtocol::CONFIDENTIALITY_BLOCK,
<a name="l00279"></a>00279 BundleProtocol::BLOCK_FLAG_DISCARD_BUNDLE_ONERROR |
<a name="l00280"></a>00280 (last ? BundleProtocol::BLOCK_FLAG_LAST_BLOCK : 0),
<a name="l00281"></a>00281 length);
<a name="l00282"></a>00282
<a name="l00283"></a>00283 BlockInfo::DataBuffer* contents = block->writable_contents();
<a name="l00284"></a>00284 contents->reserve(block->data_offset() + length);
<a name="l00285"></a>00285 contents->set_len(block->data_offset() + length);
<a name="l00286"></a>00286 memcpy(contents->buf() + block->data_offset(),
<a name="l00287"></a>00287 block->source()->data(), length);
<a name="l00288"></a>00288 result = <a class="code" href="BlockProcessor_8h.html#446572d61c813971cb4d5ce4ee1b9c0b">BP_SUCCESS</a>;
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290 <span class="keywordflow">return</span> result;
<a name="l00291"></a>00291
<a name="l00292"></a>00292 fail:
<a name="l00293"></a>00293 <span class="keywordflow">if</span> ( locals != NULL )
<a name="l00294"></a>00294 locals->set_proc_flag(Ciphersuite::CS_BLOCK_PROCESSING_FAILED_DO_NOT_SEND);
<a name="l00295"></a>00295 <span class="keywordflow">return</span> <a class="code" href="BlockProcessor_8h.html#cce9a45a37bad1da41648533b0e15457">BP_FAIL</a>;
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00299"></a>00299 <span class="keywordtype">int</span>
<a name="l00300"></a>00300 C_BlockProcessor::finalize(<span class="keyword">const</span> Bundle* bundle,
<a name="l00301"></a>00301 BlockInfoVec* xmit_blocks,
<a name="l00302"></a>00302 BlockInfo* block,
<a name="l00303"></a>00303 <span class="keyword">const</span> <a class="code" href="namespacedtn.html#6efb37e503f8062c537b022eb755b94e" title="Typedef for a reference on a link.">LinkRef</a>& link)
<a name="l00304"></a>00304 {
<a name="l00305"></a>00305 (void)bundle;
<a name="l00306"></a>00306 (void)link;
<a name="l00307"></a>00307 (void)xmit_blocks;
<a name="l00308"></a>00308 (void)block;
<a name="l00309"></a>00309
<a name="l00310"></a>00310 Ciphersuite* p = NULL;
<a name="l00311"></a>00311 <span class="keywordtype">int</span> result = <a class="code" href="BlockProcessor_8h.html#cce9a45a37bad1da41648533b0e15457">BP_FAIL</a>;
<a name="l00312"></a>00312 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"C_BlockProcessor::finalize()"</span>);
<a name="l00313"></a>00313
<a name="l00314"></a>00314 BP_Local_CS* locals = <span class="keyword">dynamic_cast<</span>BP_Local_CS*<span class="keyword">></span>(block->locals());
<a name="l00315"></a>00315 CS_FAIL_IF_NULL(locals);
<a name="l00316"></a>00316
<a name="l00317"></a>00317 p = Ciphersuite::find_suite( locals->owner_cs_num() );
<a name="l00318"></a>00318 <span class="keywordflow">if</span> ( p != NULL ) {
<a name="l00319"></a>00319 result = p->finalize(bundle, xmit_blocks, block, link);
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321 <span class="comment">// If we are called then it means that the ciphersuite for this Bundle</span>
<a name="l00322"></a>00322 <span class="comment">// does not exist at this node. All the work was done in generate()</span>
<a name="l00323"></a>00323 <span class="keywordflow">return</span> result;
<a name="l00324"></a>00324
<a name="l00325"></a>00325 fail:
<a name="l00326"></a>00326 <span class="keywordflow">if</span> ( locals != NULL )
<a name="l00327"></a>00327 locals->set_proc_flag(Ciphersuite::CS_BLOCK_PROCESSING_FAILED_DO_NOT_SEND);
<a name="l00328"></a>00328 <span class="keywordflow">return</span> <a class="code" href="BlockProcessor_8h.html#cce9a45a37bad1da41648533b0e15457">BP_FAIL</a>;
<a name="l00329"></a>00329 }
<a name="l00330"></a>00330
<a name="l00331"></a>00331 } <span class="comment">// namespace dtn</span>
<a name="l00332"></a>00332
<a name="l00333"></a>00333 <span class="preprocessor">#endif </span><span class="comment">/* BSP_ENABLED */</span>
</pre></div></div>
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