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distrib > Mandriva > 2010.0 > i586 > media > contrib-release > by-pkgid > 29c369053a983cc5d8c880dc6e0a2237 > files > 376

libdtn-devel-2.6.0-2mdv2009.1.i586.rpm

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<h1>KeyDB.cc</h1><a href="KeyDB_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 &lt;<a class="code" href="dtn-config_8h.html">dtn-config.h</a>&gt;</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 &lt;cstring&gt;</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;string&gt;</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;oasys/compat/inttypes.h&gt;</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include &lt;oasys/util/StringBuffer.h&gt;</span>
<a name="l00030"></a>00030 
<a name="l00031"></a>00031 <span class="preprocessor">#include "<a class="code" href="KeyDB_8h.html">KeyDB.h</a>"</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="Ciphersuite_8h.html">Ciphersuite.h</a>"</span>
<a name="l00033"></a>00033 
<a name="l00034"></a>00034 <span class="keyword">namespace </span>dtn {
<a name="l00035"></a>00035 
<a name="l00036"></a>00036 <span class="keyword">template</span> &lt;&gt;
<a name="l00037"></a>00037 KeyDB* oasys::Singleton&lt;KeyDB, false&gt;::instance_ = NULL;
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 <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="l00040"></a>00040 
<a name="l00041"></a>00041 KeyDB::KeyDB()
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044 
<a name="l00045"></a>00045 KeyDB::~KeyDB()
<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 KeyDB::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">"KeyDB already initialized"</span>);
<a name="l00055"></a>00055     }
<a name="l00056"></a>00056     
<a name="l00057"></a>00057     instance_ = <span class="keyword">new</span> KeyDB();
<a name="l00058"></a>00058         log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"KeyDB::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 KeyDB::set_key(Entry&amp; entry)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064     EntryList&amp; keys = instance()-&gt;keys_;
<a name="l00065"></a>00065     EntryList::iterator iter;
<a name="l00066"></a>00066 
<a name="l00067"></a>00067     <span class="keywordflow">for</span> (iter = keys.begin(); iter != keys.end(); iter++)
<a name="l00068"></a>00068     {
<a name="l00069"></a>00069         <span class="keywordflow">if</span> (iter-&gt;match(entry)) {
<a name="l00070"></a>00070             *iter = entry;
<a name="l00071"></a>00071             <span class="keywordflow">return</span>;
<a name="l00072"></a>00072         }
<a name="l00073"></a>00073     }
<a name="l00074"></a>00074     
<a name="l00075"></a>00075     <span class="comment">// if we get here then there was no existing matching entry;</span>
<a name="l00076"></a>00076     <span class="comment">// insert the new entry just before any existing wildcard entries</span>
<a name="l00077"></a>00077     <span class="keywordflow">for</span> (iter = keys.begin();
<a name="l00078"></a>00078          iter != keys.end() &amp;&amp; iter-&gt;host() != std::string(<span class="stringliteral">"*"</span>);
<a name="l00079"></a>00079          iter++)
<a name="l00080"></a>00080     {
<a name="l00081"></a>00081     }
<a name="l00082"></a>00082     keys.insert(iter, entry);
<a name="l00083"></a>00083         log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"KeyDB::set_key() done"</span>);
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 
<a name="l00086"></a>00086 <span class="keyword">const</span> KeyDB::Entry*
<a name="l00087"></a>00087 KeyDB::find_key(<span class="keyword">const</span> <span class="keywordtype">char</span>* host, u_int16_t cs_num)
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089     EntryList&amp; keys = instance()-&gt;keys_;
<a name="l00090"></a>00090     EntryList::iterator iter;
<a name="l00091"></a>00091         log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"KeyDB::find_key()"</span>);
<a name="l00092"></a>00092 
<a name="l00093"></a>00093     <span class="keywordflow">for</span> (iter = keys.begin(); iter != keys.end(); iter++)
<a name="l00094"></a>00094     {
<a name="l00095"></a>00095         <span class="keywordflow">if</span> (iter-&gt;match_wildcard(host, cs_num))
<a name="l00096"></a>00096             <span class="keywordflow">return</span> &amp;(*iter);
<a name="l00097"></a>00097     }
<a name="l00098"></a>00098     
<a name="l00099"></a>00099     <span class="comment">// not found</span>
<a name="l00100"></a>00100     <span class="keywordflow">return</span> NULL;
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102 
<a name="l00103"></a>00103 <span class="keywordtype">void</span>
<a name="l00104"></a>00104 KeyDB::del_key(<span class="keyword">const</span> <span class="keywordtype">char</span>* host, u_int16_t cs_num)
<a name="l00105"></a>00105 {
<a name="l00106"></a>00106     EntryList&amp; keys = instance()-&gt;keys_;
<a name="l00107"></a>00107     EntryList::iterator iter;
<a name="l00108"></a>00108         log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"KeyDB::del_key()"</span>);
<a name="l00109"></a>00109 
<a name="l00110"></a>00110     <span class="keywordflow">for</span> (iter = keys.begin(); iter != keys.end(); iter++)
<a name="l00111"></a>00111     {
<a name="l00112"></a>00112         <span class="keywordflow">if</span> (iter-&gt;match(host, cs_num)) {
<a name="l00113"></a>00113             keys.erase(iter);
<a name="l00114"></a>00114             <span class="keywordflow">return</span>;
<a name="l00115"></a>00115         }
<a name="l00116"></a>00116     }
<a name="l00117"></a>00117 
<a name="l00118"></a>00118     <span class="comment">// if not found, then nothing to do</span>
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120 
<a name="l00121"></a>00121 <span class="keywordtype">void</span>
<a name="l00122"></a>00122 KeyDB::flush_keys()
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124         log_debug_p(<a class="code" href="namespacedtn.html#68bf4270dd0a7e5e8390869b83889922">log</a>, <span class="stringliteral">"KeyDB::flush_keys()"</span>);
<a name="l00125"></a>00125     instance()-&gt;keys_.clear();
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127 
<a name="l00129"></a>00129 <span class="keywordtype">void</span>
<a name="l00130"></a>00130 <a class="code" href="serialsource_8c.html#87b713d53023266d98d45b86312c26aa">KeyDB::dump</a>(oasys::StringBuffer* <a class="code" href="num2sdnv_8c.html#a81cdcc7ff6987bc85c073253e32715f">buf</a>)
<a name="l00131"></a>00131 {
<a name="l00132"></a>00132     EntryList&amp; keys = instance()-&gt;keys_;
<a name="l00133"></a>00133     EntryList::iterator iter;
<a name="l00134"></a>00134 
<a name="l00135"></a>00135     <span class="keywordflow">for</span> (iter = keys.begin(); iter != keys.end(); iter++)
<a name="l00136"></a>00136         iter-&gt;dump(buf);
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 
<a name="l00140"></a>00140 <span class="keywordtype">void</span>
<a name="l00141"></a>00141 KeyDB::dump_header(oasys::StringBuffer* buf)
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143     KeyDB::Entry::dump_header(buf);
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 
<a name="l00148"></a>00148 <span class="keywordtype">bool</span>
<a name="l00149"></a>00149 KeyDB::validate_cs_num(u_int16_t cs_num)
<a name="l00150"></a>00150 {
<a name="l00151"></a>00151     <span class="keywordflow">return</span> (Ciphersuite::find_suite(cs_num) != NULL);
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 
<a name="l00154"></a>00154 <span class="keywordtype">bool</span>
<a name="l00155"></a>00155 KeyDB::validate_key_len(u_int16_t cs_num, <span class="keywordtype">size_t</span>* key_len)
<a name="l00156"></a>00156 {
<a name="l00157"></a>00157     Ciphersuite* cs =
<a name="l00158"></a>00158         <span class="keyword">dynamic_cast&lt;</span>Ciphersuite*<span class="keyword">&gt;</span>(Ciphersuite::find_suite(cs_num));
<a name="l00159"></a>00159     <span class="keywordflow">if</span> (cs == NULL)
<a name="l00160"></a>00160         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00161"></a>00161     <span class="keywordflow">if</span> (*key_len != cs-&gt;result_len()) {
<a name="l00162"></a>00162         *key_len = cs-&gt;result_len();
<a name="l00163"></a>00163         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00164"></a>00164     }
<a name="l00165"></a>00165 
<a name="l00166"></a>00166     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168 
<a name="l00170"></a>00170 KeyDB::Entry::Entry(<span class="keyword">const</span> <span class="keywordtype">char</span>* host, u_int16_t cs_num, <span class="keyword">const</span> u_char* key,
<a name="l00171"></a>00171                     <span class="keywordtype">size_t</span> key_len)
<a name="l00172"></a>00172     : host_(host),
<a name="l00173"></a>00173       cs_num_(cs_num),
<a name="l00174"></a>00174       key_len_(key_len)
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(key != NULL);
<a name="l00177"></a>00177     <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(key_len != 0);
<a name="l00178"></a>00178 
<a name="l00179"></a>00179     key_ = <span class="keyword">new</span> u_char[key_len];
<a name="l00180"></a>00180     memcpy(key_, key, key_len);
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182 
<a name="l00184"></a>00184 KeyDB::Entry::Entry()
<a name="l00185"></a>00185     : host_(<span class="stringliteral">""</span>),
<a name="l00186"></a>00186       cs_num_(0),
<a name="l00187"></a>00187       key_(NULL),
<a name="l00188"></a>00188       key_len_(0)
<a name="l00189"></a>00189 {
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191 
<a name="l00193"></a>00193 KeyDB::Entry::Entry(<span class="keyword">const</span> Entry&amp; other)
<a name="l00194"></a>00194     : host_(other.host_),
<a name="l00195"></a>00195       cs_num_(other.cs_num_),
<a name="l00196"></a>00196       key_len_(other.key_len_)
<a name="l00197"></a>00197 {
<a name="l00198"></a>00198     <span class="keywordflow">if</span> (other.key_ == NULL)
<a name="l00199"></a>00199         key_ = NULL;
<a name="l00200"></a>00200     <span class="keywordflow">else</span> {
<a name="l00201"></a>00201         key_ = <span class="keyword">new</span> u_char[other.key_len_];
<a name="l00202"></a>00202         memcpy(key_, other.key_, other.key_len_);
<a name="l00203"></a>00203     }
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205 
<a name="l00207"></a>00207 KeyDB::Entry::~Entry()
<a name="l00208"></a>00208 {
<a name="l00209"></a>00209     <span class="keywordflow">if</span> (key_ != NULL) {
<a name="l00210"></a>00210         memset(key_, 0, key_len_);
<a name="l00211"></a>00211         <span class="keyword">delete</span> key_;
<a name="l00212"></a>00212         key_len_ = 0;
<a name="l00213"></a>00213     } <span class="keywordflow">else</span>
<a name="l00214"></a>00214         <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(key_len_ == 0);
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 
<a name="l00218"></a>00218 <span class="keywordtype">void</span>
<a name="l00219"></a>00219 KeyDB::Entry::operator=(<span class="keyword">const</span> Entry&amp; other)
<a name="l00220"></a>00220 {
<a name="l00221"></a>00221     <span class="keywordflow">if</span> (key_ != NULL) {
<a name="l00222"></a>00222         memset(key_, 0, key_len_);
<a name="l00223"></a>00223         <span class="keyword">delete</span> key_;
<a name="l00224"></a>00224     }
<a name="l00225"></a>00225 
<a name="l00226"></a>00226     host_   = other.host_;
<a name="l00227"></a>00227     cs_num_ = other.cs_num_;
<a name="l00228"></a>00228 
<a name="l00229"></a>00229     <span class="keywordflow">if</span> (other.key_ == NULL)
<a name="l00230"></a>00230         key_ = NULL;
<a name="l00231"></a>00231     <span class="keywordflow">else</span> {
<a name="l00232"></a>00232         key_ = <span class="keyword">new</span> u_char[other.key_len_];
<a name="l00233"></a>00233         memcpy(key_, other.key_, other.key_len_);
<a name="l00234"></a>00234     }
<a name="l00235"></a>00235 
<a name="l00236"></a>00236     key_len_ = other.key_len_;
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238 
<a name="l00241"></a>00241 <span class="keywordtype">bool</span>
<a name="l00242"></a>00242 KeyDB::Entry::match(<span class="keyword">const</span> Entry&amp; other)<span class="keyword"> const</span>
<a name="l00243"></a>00243 <span class="keyword"></span>{
<a name="l00244"></a>00244     <span class="keywordflow">return</span> (host_ == other.host_ &amp;&amp; cs_num_ == other.cs_num_);
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246 
<a name="l00249"></a>00249 <span class="keywordtype">bool</span>
<a name="l00250"></a>00250 KeyDB::Entry::match(<span class="keyword">const</span> <span class="keywordtype">char</span>* host, u_int16_t cs_num)<span class="keyword"> const</span>
<a name="l00251"></a>00251 <span class="keyword"></span>{
<a name="l00252"></a>00252     <span class="keywordflow">return</span> (host_ == std::string(host) &amp;&amp; cs_num_ == cs_num);
<a name="l00253"></a>00253 }
<a name="l00254"></a>00254 
<a name="l00257"></a>00257 <span class="keywordtype">bool</span>
<a name="l00258"></a>00258 KeyDB::Entry::match_wildcard(<span class="keyword">const</span> <span class="keywordtype">char</span>* host, u_int16_t cs_num)<span class="keyword"> const</span>
<a name="l00259"></a>00259 <span class="keyword"></span>{
<a name="l00260"></a>00260     <span class="keywordflow">return</span> ((host_ == std::string(host) || host_ == std::string(<span class="stringliteral">"*"</span>))
<a name="l00261"></a>00261             &amp;&amp; cs_num_ == cs_num);
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263 
<a name="l00265"></a>00265 <span class="keywordtype">void</span>
<a name="l00266"></a>00266 <a class="code" href="serialsource_8c.html#87b713d53023266d98d45b86312c26aa">KeyDB::Entry::dump</a>(oasys::StringBuffer* buf)<span class="keyword"> const</span>
<a name="l00267"></a>00267 <span class="keyword"></span>{
<a name="l00268"></a>00268     buf-&gt;appendf(<span class="stringliteral">"%15s   0x%03x  "</span>, host_.c_str(), cs_num_);
<a name="l00269"></a>00269     <span class="comment">//buf-&gt;appendf("(-- not shown --)");</span>
<a name="l00270"></a>00270     <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; (int)key_len_; i++)
<a name="l00271"></a>00271         buf-&gt;appendf(<span class="stringliteral">"%02x"</span>, (<span class="keywordtype">int</span>)key_[i]);
<a name="l00272"></a>00272     buf-&gt;appendf(<span class="stringliteral">"\n"</span>);
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274 
<a name="l00276"></a>00276 <span class="keywordtype">void</span>
<a name="l00277"></a>00277 KeyDB::Entry::dump_header(oasys::StringBuffer* buf)
<a name="l00278"></a>00278 {
<a name="l00279"></a>00279     buf-&gt;appendf(<span class="stringliteral">"host              cs_num   key\n"</span>                );
<a name="l00280"></a>00280     buf-&gt;appendf(<span class="stringliteral">"---------------   ------   -------------------\n"</span>);
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282 
<a name="l00283"></a>00283 } <span class="comment">// namespace dtn</span>
<a name="l00284"></a>00284 
<a name="l00285"></a>00285 <span class="preprocessor">#endif  </span><span class="comment">/* BSP_ENABLED */</span>
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