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<h1>SPD.cc</h1><a href="SPD_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 2007 BBN Technologies Corporation</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License"); you</span>
<a name="l00005"></a>00005 <span class="comment"> * may not use this file except in compliance with the License. You</span>
<a name="l00006"></a>00006 <span class="comment"> * 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</span>
<a name="l00013"></a>00013 <span class="comment"> * implied.</span>
<a name="l00014"></a>00014 <span class="comment"> */</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="comment">/*</span>
<a name="l00017"></a>00017 <span class="comment"> * $Id$</span>
<a name="l00018"></a>00018 <span class="comment"> */</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor"># include <<a class="code" href="dtn-config_8h.html">dtn-config.h</a>></span>
<a name="l00022"></a>00022 <span class="preprocessor">#endif</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="preprocessor">#ifdef BSP_ENABLED</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="SPD_8h.html">SPD.h</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="Ciphersuite_8h.html">Ciphersuite.h</a>"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="Ciphersuite__BA1_8h.html">Ciphersuite_BA1.h</a>"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="Ciphersuite__PS2_8h.html">Ciphersuite_PS2.h</a>"</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include "<a class="code" href="Ciphersuite__C3_8h.html">Ciphersuite_C3.h</a>"</span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keyword">namespace </span>dtn {
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">template</span> <>
<a name="l00035"></a>00035 SPD* oasys::Singleton<SPD, false>::instance_ = NULL;
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <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/security"</span>;
<a name="l00038"></a>00038
<a name="l00039"></a>00039 SPD::SPD()
<a name="l00040"></a>00040 : global_policy_inbound_(SPD_USE_NONE),
<a name="l00041"></a>00041 global_policy_outbound_(SPD_USE_NONE)
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044
<a name="l00045"></a>00045 SPD::~SPD()
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keywordtype">void</span>
<a name="l00050"></a>00050 SPD::init()
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 <span class="keywordflow">if</span> (instance_ != NULL)
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 PANIC(<span class="stringliteral">"SPD already initialized"</span>);
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056
<a name="l00057"></a>00057 instance_ = <span class="keyword">new</span> SPD();
<a name="l00058"></a>00058 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::init() done"</span>);
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keywordtype">void</span>
<a name="l00062"></a>00062 SPD::set_global_policy(spd_direction_t direction, spd_policy_t policy)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(direction == SPD_DIR_IN || direction == SPD_DIR_OUT);
<a name="l00065"></a>00065 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>((policy & ~(SPD_USE_BAB | SPD_USE_CB | SPD_USE_PSB)) == 0);
<a name="l00066"></a>00066 <span class="keywordflow">if</span> (direction == SPD_DIR_IN)
<a name="l00067"></a>00067 instance()->global_policy_inbound_ = policy;
<a name="l00068"></a>00068 <span class="keywordflow">else</span>
<a name="l00069"></a>00069 instance()->global_policy_outbound_ = policy;
<a name="l00070"></a>00070 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::set_global_policy() done"</span>);
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordtype">void</span>
<a name="l00074"></a>00074 SPD::prepare_out_blocks(<span class="keyword">const</span> Bundle* bundle, <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="l00075"></a>00075 BlockInfoVec* xmit_blocks)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 spd_policy_t policy = find_policy(SPD_DIR_OUT, bundle);
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (policy & SPD_USE_PSB) {
<a name="l00080"></a>00080 Ciphersuite* bp =
<a name="l00081"></a>00081 Ciphersuite::find_suite(Ciphersuite_PS2::CSNUM_PS2);
<a name="l00082"></a>00082 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(bp != NULL);
<a name="l00083"></a>00083 bp->prepare(bundle, xmit_blocks, NULL, link,
<a name="l00084"></a>00084 BlockInfo::LIST_NONE);
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordflow">if</span> (policy & SPD_USE_CB) {
<a name="l00088"></a>00088 Ciphersuite* bp =
<a name="l00089"></a>00089 Ciphersuite::find_suite(Ciphersuite_C3::CSNUM_C3);
<a name="l00090"></a>00090 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(bp != NULL);
<a name="l00091"></a>00091 bp->prepare(bundle, xmit_blocks, NULL, link,
<a name="l00092"></a>00092 BlockInfo::LIST_NONE);
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="keywordflow">if</span> (policy & SPD_USE_BAB) {
<a name="l00096"></a>00096 Ciphersuite* bp =
<a name="l00097"></a>00097 Ciphersuite::find_suite(Ciphersuite_BA1::CSNUM_BA1);
<a name="l00098"></a>00098 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(bp != NULL);
<a name="l00099"></a>00099 bp->prepare(bundle, xmit_blocks, NULL, link,
<a name="l00100"></a>00100 BlockInfo::LIST_NONE);
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::prepare_out_blocks() done"</span>);
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keywordtype">bool</span>
<a name="l00106"></a>00106 SPD::verify_in_policy(<span class="keyword">const</span> Bundle* bundle)
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 spd_policy_t policy = find_policy(SPD_DIR_IN, bundle);
<a name="l00109"></a>00109 <span class="keyword">const</span> BlockInfoVec* recv_blocks = &bundle->recv_blocks();
<a name="l00110"></a>00110
<a name="l00111"></a>00111 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::verify_in_policy() 0x%x"</span>, policy);
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keywordflow">if</span> (policy & SPD_USE_BAB) {
<a name="l00114"></a>00114 <span class="keywordflow">if</span> ( !Ciphersuite::check_validation(bundle, recv_blocks, Ciphersuite_BA1::CSNUM_BA1 )) {
<a name="l00115"></a>00115 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::verify_in_policy() no BP_TAG_BAB_IN_DONE"</span>);
<a name="l00116"></a>00116 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (policy & SPD_USE_CB) {
<a name="l00121"></a>00121 <span class="keywordflow">if</span> ( !Ciphersuite::check_validation(bundle, recv_blocks, Ciphersuite_C3::CSNUM_C3 )) {
<a name="l00122"></a>00122 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::verify_in_policy() no BP_TAG_CB_IN_DONE"</span>);
<a name="l00123"></a>00123 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keywordflow">if</span> (policy & SPD_USE_PSB) {
<a name="l00128"></a>00128 <span class="keywordflow">if</span> ( !Ciphersuite::check_validation(bundle, recv_blocks, Ciphersuite_PS2::CSNUM_PS2 )) {
<a name="l00129"></a>00129 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::verify_in_policy() no BP_TAG_PSB_IN_DONE"</span>);
<a name="l00130"></a>00130 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a>00137 SPD::spd_policy_t
<a name="l00138"></a>00138 SPD::find_policy(spd_direction_t direction, <span class="keyword">const</span> Bundle* bundle)
<a name="l00139"></a>00139 {
<a name="l00140"></a>00140 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(direction == SPD_DIR_IN || direction == SPD_DIR_OUT);
<a name="l00141"></a>00141
<a name="l00142"></a>00142 (void)bundle;
<a name="l00143"></a>00143 log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"SPD::find_policy()"</span>);
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <span class="keywordflow">return</span> (direction == SPD_DIR_IN ? instance()->global_policy_inbound_
<a name="l00146"></a>00146 : instance()->global_policy_outbound_);
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148
<a name="l00149"></a>00149 } <span class="comment">// namespace dtn</span>
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="preprocessor">#endif </span><span class="comment">/* BSP_ENABLED */</span>
</pre></div></div>
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