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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * snmpv3.c</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004 
<a name="l00005"></a>00005 <span class="preprocessor">#include &lt;net-snmp/net-snmp-config.h&gt;</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include &lt;errno.h&gt;</span>
<a name="l00007"></a>00007 <span class="preprocessor">#ifdef HAVE_LIMITS_H</span>
<a name="l00008"></a>00008 <span class="preprocessor"></span><span class="preprocessor">#include &lt;limits.h&gt;</span>
<a name="l00009"></a>00009 <span class="preprocessor">#endif</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#include &lt;stdio.h&gt;</span>
<a name="l00011"></a>00011 <span class="preprocessor">#include &lt;sys/types.h&gt;</span>
<a name="l00012"></a>00012 
<a name="l00013"></a>00013 <span class="preprocessor">#if TIME_WITH_SYS_TIME</span>
<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor"># ifdef WIN32</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;sys/timeb.h&gt;</span>
<a name="l00016"></a>00016 <span class="preprocessor"># else</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;sys/time.h&gt;</span>
<a name="l00018"></a>00018 <span class="preprocessor"># endif</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor"># include &lt;time.h&gt;</span>
<a name="l00020"></a>00020 <span class="preprocessor">#else</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor"># if HAVE_SYS_TIME_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;sys/time.h&gt;</span>
<a name="l00023"></a>00023 <span class="preprocessor"># else</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;time.h&gt;</span>
<a name="l00025"></a>00025 <span class="preprocessor"># endif</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="preprocessor">#if HAVE_SYS_TIMES_H</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#include &lt;sys/times.h&gt;</span>
<a name="l00029"></a>00029 <span class="preprocessor">#endif</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#if HAVE_STRING_H</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#include &lt;string.h&gt;</span>
<a name="l00032"></a>00032 <span class="preprocessor">#else</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#include &lt;strings.h&gt;</span>
<a name="l00034"></a>00034 <span class="preprocessor">#endif</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#include &lt;ctype.h&gt;</span>
<a name="l00036"></a>00036 <span class="preprocessor">#if HAVE_NETINET_IN_H</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#include &lt;netinet/in.h&gt;</span>
<a name="l00038"></a>00038 <span class="preprocessor">#endif</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#if HAVE_UNISTD_H</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#include &lt;unistd.h&gt;</span>
<a name="l00041"></a>00041 <span class="preprocessor">#endif</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#if HAVE_WINSOCK_H</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#include &lt;winsock.h&gt;</span>
<a name="l00044"></a>00044 <span class="preprocessor">#endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#if HAVE_SYS_SOCKET_H</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span><span class="preprocessor">#include &lt;sys/socket.h&gt;</span>
<a name="l00047"></a>00047 <span class="preprocessor">#endif</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#if HAVE_NETDB_H</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor">#include &lt;netdb.h&gt;</span>
<a name="l00050"></a>00050 <span class="preprocessor">#endif</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#if HAVE_STDLIB_H</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor">#       include &lt;stdlib.h&gt;</span>
<a name="l00053"></a>00053 <span class="preprocessor">#endif</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span>
<a name="l00055"></a>00055 <span class="comment">/*</span>
<a name="l00056"></a>00056 <span class="comment"> * Stuff needed for getHwAddress(...) </span>
<a name="l00057"></a>00057 <span class="comment"> */</span>
<a name="l00058"></a>00058 <span class="preprocessor">#ifdef HAVE_SYS_IOCTL_H</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span><span class="preprocessor">#       include &lt;sys/ioctl.h&gt;</span>
<a name="l00060"></a>00060 <span class="preprocessor">#endif</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_NET_IF_H</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span><span class="preprocessor">#       include &lt;net/if.h&gt;</span>
<a name="l00063"></a>00063 <span class="preprocessor">#endif</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span>
<a name="l00065"></a>00065 <span class="preprocessor">#if HAVE_DMALLOC_H</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span><span class="preprocessor">#include &lt;dmalloc.h&gt;</span>
<a name="l00067"></a>00067 <span class="preprocessor">#endif</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span>
<a name="l00069"></a>00069 <span class="preprocessor">#include &lt;net-snmp/types.h&gt;</span>
<a name="l00070"></a>00070 <span class="preprocessor">#include &lt;net-snmp/output_api.h&gt;</span>
<a name="l00071"></a>00071 <span class="preprocessor">#include &lt;net-snmp/config_api.h&gt;</span>
<a name="l00072"></a>00072 <span class="preprocessor">#include &lt;net-snmp/utilities.h&gt;</span>
<a name="l00073"></a>00073 
<a name="l00074"></a>00074 <span class="preprocessor">#include &lt;net-snmp/library/snmpv3.h&gt;</span>
<a name="l00075"></a>00075 <span class="preprocessor">#include &lt;net-snmp/library/callback.h&gt;</span>
<a name="l00076"></a>00076 <span class="preprocessor">#include &lt;net-snmp/library/snmp_api.h&gt;</span>
<a name="l00077"></a>00077 <span class="preprocessor">#include &lt;net-snmp/library/lcd_time.h&gt;</span>
<a name="l00078"></a>00078 <span class="preprocessor">#include &lt;net-snmp/library/scapi.h&gt;</span>
<a name="l00079"></a>00079 <span class="preprocessor">#include &lt;net-snmp/library/keytools.h&gt;</span>
<a name="l00080"></a>00080 <span class="preprocessor">#include &lt;net-snmp/library/lcd_time.h&gt;</span>
<a name="l00081"></a>00081 <span class="preprocessor">#include &lt;net-snmp/library/snmp_secmod.h&gt;</span>
<a name="l00082"></a>00082 <span class="preprocessor">#include &lt;net-snmp/library/snmpusm.h&gt;</span>
<a name="l00083"></a>00083 <span class="preprocessor">#include &lt;net-snmp/library/transform_oids.h&gt;</span>
<a name="l00084"></a>00084 
<a name="l00085"></a>00085 <span class="keyword">static</span> u_long   engineBoots = 1;
<a name="l00086"></a>00086 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> engineIDType = ENGINEID_TYPE_NETSNMP_RND;
<a name="l00087"></a>00087 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *engineID = NULL;
<a name="l00088"></a>00088 <span class="keyword">static</span> <span class="keywordtype">size_t</span>   engineIDLength = 0;
<a name="l00089"></a>00089 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *engineIDNic = NULL;
<a name="l00090"></a>00090 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> engineIDIsSet = 0;  <span class="comment">/* flag if ID set by config */</span>
<a name="l00091"></a>00091 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *oldEngineID = NULL;
<a name="l00092"></a>00092 <span class="keyword">static</span> <span class="keywordtype">size_t</span>   oldEngineIDLength = 0;
<a name="l00093"></a>00093 <span class="keyword">static</span> <span class="keyword">struct </span>timeval snmpv3starttime;
<a name="l00094"></a>00094 
<a name="l00095"></a>00095 <span class="comment">/*</span>
<a name="l00096"></a>00096 <span class="comment"> * Set up default snmpv3 parameter value storage.</span>
<a name="l00097"></a>00097 <span class="comment"> */</span>
<a name="l00098"></a>00098 <span class="keyword">static</span> <span class="keyword">const</span> oid *defaultAuthType = NULL;
<a name="l00099"></a>00099 <span class="keyword">static</span> <span class="keywordtype">size_t</span>   defaultAuthTypeLen = 0;
<a name="l00100"></a>00100 <span class="keyword">static</span> <span class="keyword">const</span> oid *defaultPrivType = NULL;
<a name="l00101"></a>00101 <span class="keyword">static</span> <span class="keywordtype">size_t</span>   defaultPrivTypeLen = 0;
<a name="l00102"></a>00102 
<a name="l00103"></a>00103 <span class="comment">/* this is probably an over-kill ifdef, but why not */</span>
<a name="l00104"></a>00104 <span class="preprocessor">#if defined(HAVE_SYS_TIMES_H) &amp;&amp; defined(HAVE_UNISTD_H) &amp;&amp; defined(HAVE_TIMES) &amp;&amp; defined(_SC_CLK_TCK) &amp;&amp; defined(HAVE_SYSCONF) &amp;&amp; defined(UINT_MAX)</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span>
<a name="l00106"></a>00106 <span class="preprocessor">#define SNMP_USE_TIMES 1</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span>
<a name="l00108"></a>00108 <span class="keyword">static</span> clock_t snmpv3startClock;
<a name="l00109"></a>00109 <span class="keyword">static</span> <span class="keywordtype">long</span> clockticks = 0;
<a name="l00110"></a>00110 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lastcalltime = 0;
<a name="l00111"></a>00111 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> wrapcounter = 0;
<a name="l00112"></a>00112 
<a name="l00113"></a>00113 <span class="preprocessor">#endif </span><span class="comment">/* times() tests */</span>
<a name="l00114"></a>00114 
<a name="l00115"></a>00115 <span class="preprocessor">#if defined(IFHWADDRLEN) &amp;&amp; defined(SIOCGIFHWADDR)</span>
<a name="l00116"></a>00116 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span>      getHwAddress(<span class="keyword">const</span> <span class="keywordtype">char</span> *networkDevice, <span class="keywordtype">char</span> *addressOut);
<a name="l00117"></a>00117 <span class="preprocessor">#endif</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span>
<a name="l00119"></a>00119 <span class="keywordtype">void</span>
<a name="l00120"></a>00120 snmpv3_authtype_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l00121"></a>00121 {
<a name="l00122"></a>00122 <span class="preprocessor">#ifndef NETSNMP_DISABLE_MD5</span>
<a name="l00123"></a>00123 <span class="preprocessor"></span>    <span class="keywordflow">if</span> (strcasecmp(cptr, <span class="stringliteral">&quot;MD5&quot;</span>) == 0)
<a name="l00124"></a>00124         defaultAuthType = usmHMACMD5AuthProtocol;
<a name="l00125"></a>00125     <span class="keywordflow">else</span>
<a name="l00126"></a>00126 <span class="preprocessor">#endif</span>
<a name="l00127"></a>00127 <span class="preprocessor"></span>        <span class="keywordflow">if</span> (strcasecmp(cptr, <span class="stringliteral">&quot;SHA&quot;</span>) == 0)
<a name="l00128"></a>00128         defaultAuthType = usmHMACSHA1AuthProtocol;
<a name="l00129"></a>00129     <span class="keywordflow">else</span>
<a name="l00130"></a>00130         config_perror(<span class="stringliteral">&quot;Unknown authentication type&quot;</span>);
<a name="l00131"></a>00131     defaultAuthTypeLen = USM_LENGTH_OID_TRANSFORM;
<a name="l00132"></a>00132     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;set default authentication type: %s\n&quot;</span>, cptr));
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134 
<a name="l00135"></a>00135 <span class="keyword">const</span> oid      *
<a name="l00136"></a>00136 get_default_authtype(<span class="keywordtype">size_t</span> * len)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138     <span class="keywordflow">if</span> (defaultAuthType == NULL) {
<a name="l00139"></a>00139         defaultAuthType = SNMP_DEFAULT_AUTH_PROTO;
<a name="l00140"></a>00140         defaultAuthTypeLen = SNMP_DEFAULT_AUTH_PROTOLEN;
<a name="l00141"></a>00141     }
<a name="l00142"></a>00142     <span class="keywordflow">if</span> (len)
<a name="l00143"></a>00143         *len = defaultAuthTypeLen;
<a name="l00144"></a>00144     <span class="keywordflow">return</span> defaultAuthType;
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146 
<a name="l00147"></a>00147 <span class="keywordtype">void</span>
<a name="l00148"></a>00148 snmpv3_privtype_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150     <span class="keywordtype">int</span> testcase = 0;
<a name="l00151"></a>00151 
<a name="l00152"></a>00152 <span class="preprocessor">#ifndef NETSNMP_DISABLE_DES</span>
<a name="l00153"></a>00153 <span class="preprocessor"></span>    <span class="keywordflow">if</span> (strcasecmp(cptr, <span class="stringliteral">&quot;DES&quot;</span>) == 0) {
<a name="l00154"></a>00154         testcase = 1;
<a name="l00155"></a>00155         defaultPrivType = usmDESPrivProtocol;
<a name="l00156"></a>00156     }
<a name="l00157"></a>00157 <span class="preprocessor">#endif</span>
<a name="l00158"></a>00158 <span class="preprocessor"></span>
<a name="l00159"></a>00159 <span class="preprocessor">#if HAVE_AES</span>
<a name="l00160"></a>00160 <span class="preprocessor"></span>    <span class="comment">/* XXX AES: assumes oid length == des oid length */</span>
<a name="l00161"></a>00161     <span class="keywordflow">if</span> (strcasecmp(cptr, <span class="stringliteral">&quot;AES128&quot;</span>) == 0 ||
<a name="l00162"></a>00162         strcasecmp(cptr, <span class="stringliteral">&quot;AES&quot;</span>) == 0) {
<a name="l00163"></a>00163         testcase = 1;
<a name="l00164"></a>00164         defaultPrivType = usmAES128PrivProtocol;
<a name="l00165"></a>00165     }
<a name="l00166"></a>00166 <span class="preprocessor">#endif</span>
<a name="l00167"></a>00167 <span class="preprocessor"></span>    <span class="keywordflow">if</span> (testcase == 0)
<a name="l00168"></a>00168         config_perror(<span class="stringliteral">&quot;Unknown privacy type&quot;</span>);
<a name="l00169"></a>00169     defaultPrivTypeLen = SNMP_DEFAULT_PRIV_PROTOLEN;
<a name="l00170"></a>00170     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;set default privacy type: %s\n&quot;</span>, cptr));
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172 
<a name="l00173"></a>00173 <span class="keyword">const</span> oid      *
<a name="l00174"></a>00174 get_default_privtype(<span class="keywordtype">size_t</span> * len)
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176     <span class="keywordflow">if</span> (defaultPrivType == NULL) {
<a name="l00177"></a>00177 <span class="preprocessor">#ifndef NETSNMP_DISABLE_DES</span>
<a name="l00178"></a>00178 <span class="preprocessor"></span>        defaultPrivType = usmDESPrivProtocol;
<a name="l00179"></a>00179 <span class="preprocessor">#else</span>
<a name="l00180"></a>00180 <span class="preprocessor"></span>        defaultPrivType = usmAESPrivProtocol;
<a name="l00181"></a>00181 <span class="preprocessor">#endif</span>
<a name="l00182"></a>00182 <span class="preprocessor"></span>        defaultPrivTypeLen = USM_LENGTH_OID_TRANSFORM;
<a name="l00183"></a>00183     }
<a name="l00184"></a>00184     <span class="keywordflow">if</span> (len)
<a name="l00185"></a>00185         *len = defaultPrivTypeLen;
<a name="l00186"></a>00186     <span class="keywordflow">return</span> defaultPrivType;
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188 
<a name="l00189"></a>00189 <span class="comment">/*******************************************************************-o-******</span>
<a name="l00190"></a>00190 <span class="comment"> * snmpv3_secLevel_conf</span>
<a name="l00191"></a>00191 <span class="comment"> *</span>
<a name="l00192"></a>00192 <span class="comment"> * Parameters:</span>
<a name="l00193"></a>00193 <span class="comment"> *      *word</span>
<a name="l00194"></a>00194 <span class="comment"> *      *cptr</span>
<a name="l00195"></a>00195 <span class="comment"> *</span>
<a name="l00196"></a>00196 <span class="comment"> * Line syntax:</span>
<a name="l00197"></a>00197 <span class="comment"> *      defSecurityLevel &quot;noAuthNoPriv&quot; | &quot;authNoPriv&quot; | &quot;authPriv&quot;</span>
<a name="l00198"></a>00198 <span class="comment"> */</span>
<a name="l00199"></a>00199 
<a name="l00200"></a>00200 <span class="keywordtype">int</span>
<a name="l00201"></a>00201 parse_secLevel_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr) {
<a name="l00202"></a>00202     <span class="keywordflow">if</span> (strcasecmp(cptr, <span class="stringliteral">&quot;noAuthNoPriv&quot;</span>) == 0 || strcmp(cptr, <span class="stringliteral">&quot;1&quot;</span>) == 0 ||
<a name="l00203"></a>00203         strcasecmp(cptr, <span class="stringliteral">&quot;nanp&quot;</span>) == 0) {
<a name="l00204"></a>00204         <span class="keywordflow">return</span> SNMP_SEC_LEVEL_NOAUTH;
<a name="l00205"></a>00205     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcasecmp(cptr, <span class="stringliteral">&quot;authNoPriv&quot;</span>) == 0 || strcmp(cptr, <span class="stringliteral">&quot;2&quot;</span>) == 0 ||
<a name="l00206"></a>00206                strcasecmp(cptr, <span class="stringliteral">&quot;anp&quot;</span>) == 0) {
<a name="l00207"></a>00207         <span class="keywordflow">return</span> SNMP_SEC_LEVEL_AUTHNOPRIV;
<a name="l00208"></a>00208     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcasecmp(cptr, <span class="stringliteral">&quot;authPriv&quot;</span>) == 0 || strcmp(cptr, <span class="stringliteral">&quot;3&quot;</span>) == 0 ||
<a name="l00209"></a>00209                strcasecmp(cptr, <span class="stringliteral">&quot;ap&quot;</span>) == 0) {
<a name="l00210"></a>00210         <span class="keywordflow">return</span> SNMP_SEC_LEVEL_AUTHPRIV;
<a name="l00211"></a>00211     } <span class="keywordflow">else</span> {
<a name="l00212"></a>00212         <span class="keywordflow">return</span> -1;
<a name="l00213"></a>00213     }
<a name="l00214"></a>00214 }
<a name="l00215"></a>00215 
<a name="l00216"></a>00216 <span class="keywordtype">void</span>
<a name="l00217"></a>00217 snmpv3_secLevel_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l00218"></a>00218 {
<a name="l00219"></a>00219     <span class="keywordtype">char</span>            buf[1024];
<a name="l00220"></a>00220     <span class="keywordtype">int</span>             secLevel;
<a name="l00221"></a>00221 
<a name="l00222"></a>00222     <span class="keywordflow">if</span> ((secLevel = parse_secLevel_conf( word, cptr )) &gt;= 0 ) {
<a name="l00223"></a>00223         netsnmp_ds_set_int(NETSNMP_DS_LIBRARY_ID, 
<a name="l00224"></a>00224                            NETSNMP_DS_LIB_SECLEVEL, secLevel);
<a name="l00225"></a>00225     } <span class="keywordflow">else</span> {
<a name="l00226"></a>00226         snprintf(buf, <span class="keyword">sizeof</span>(buf), <span class="stringliteral">&quot;Unknown security level: %s&quot;</span>, cptr);
<a name="l00227"></a>00227         buf[ <span class="keyword">sizeof</span>(buf)-1 ] = 0;
<a name="l00228"></a>00228         config_perror(buf);
<a name="l00229"></a>00229     }
<a name="l00230"></a>00230     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;default secLevel set to: %s = %d\n&quot;</span>, cptr,
<a name="l00231"></a>00231                 netsnmp_ds_get_int(NETSNMP_DS_LIBRARY_ID, 
<a name="l00232"></a>00232                                    NETSNMP_DS_LIB_SECLEVEL)));
<a name="l00233"></a>00233 }
<a name="l00234"></a>00234 
<a name="l00235"></a>00235 
<a name="l00236"></a>00236 <span class="keywordtype">int</span>
<a name="l00237"></a>00237 snmpv3_options(<span class="keywordtype">char</span> *optarg, <a class="code" href="structsnmp__session.html" title="The snmp session structure.">netsnmp_session</a> * session, <span class="keywordtype">char</span> **Apsz,
<a name="l00238"></a>00238                <span class="keywordtype">char</span> **Xpsz, <span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *<span class="keyword">const</span> *argv)
<a name="l00239"></a>00239 {
<a name="l00240"></a>00240     <span class="keywordtype">char</span>           *cp = optarg;
<a name="l00241"></a>00241     <span class="keywordtype">int</span> testcase;
<a name="l00242"></a>00242     optarg++;
<a name="l00243"></a>00243     <span class="comment">/*</span>
<a name="l00244"></a>00244 <span class="comment">     * Support &#39;... -3x=value ....&#39; syntax</span>
<a name="l00245"></a>00245 <span class="comment">     */</span>
<a name="l00246"></a>00246     <span class="keywordflow">if</span> (*optarg == <span class="charliteral">&#39;=&#39;</span>) {
<a name="l00247"></a>00247         optarg++;
<a name="l00248"></a>00248     }
<a name="l00249"></a>00249     <span class="comment">/*</span>
<a name="l00250"></a>00250 <span class="comment">     * and &#39;.... &quot;-3x value&quot; ....&#39;  (*with* the quotes)</span>
<a name="l00251"></a>00251 <span class="comment">     */</span>
<a name="l00252"></a>00252     <span class="keywordflow">while</span> (*optarg &amp;&amp; isspace(*optarg)) {
<a name="l00253"></a>00253         optarg++;
<a name="l00254"></a>00254     }
<a name="l00255"></a>00255     <span class="comment">/*</span>
<a name="l00256"></a>00256 <span class="comment">     * Finally, handle &quot;.... -3x value ....&quot; syntax</span>
<a name="l00257"></a>00257 <span class="comment">     *   (*without* surrounding quotes)</span>
<a name="l00258"></a>00258 <span class="comment">     */</span>
<a name="l00259"></a>00259     <span class="keywordflow">if</span> (!*optarg) {
<a name="l00260"></a>00260         <span class="comment">/*</span>
<a name="l00261"></a>00261 <span class="comment">         * We&#39;ve run off the end of the argument</span>
<a name="l00262"></a>00262 <span class="comment">         *  so move on the the next.</span>
<a name="l00263"></a>00263 <span class="comment">         */</span>
<a name="l00264"></a>00264         optarg = argv[optind++];
<a name="l00265"></a>00265         <span class="keywordflow">if</span> (optind &gt; argc) {
<a name="l00266"></a>00266             fprintf(stderr,
<a name="l00267"></a>00267                     <span class="stringliteral">&quot;Missing argument after SNMPv3 &#39;-3%c&#39; option.\n&quot;</span>, *cp);
<a name="l00268"></a>00268             <span class="keywordflow">return</span> (-1);
<a name="l00269"></a>00269         }
<a name="l00270"></a>00270     }
<a name="l00271"></a>00271 
<a name="l00272"></a>00272     <span class="keywordflow">switch</span> (*cp) {
<a name="l00273"></a>00273 
<a name="l00274"></a>00274     <span class="keywordflow">case</span> <span class="charliteral">&#39;Z&#39;</span>:
<a name="l00275"></a>00275         errno=0;
<a name="l00276"></a>00276         session-&gt;<a class="code" href="structsnmp__session.html#aa085375bfa95ac93f3496b45cc48c7c4" title="initial engineBoots for remote engine">engineBoots</a> = strtoul(optarg, &amp;cp, 10);
<a name="l00277"></a>00277         <span class="keywordflow">if</span> (errno || cp == optarg) {
<a name="l00278"></a>00278             fprintf(stderr, <span class="stringliteral">&quot;Need engine boots value after -3Z flag.\n&quot;</span>);
<a name="l00279"></a>00279             <span class="keywordflow">return</span> (-1);
<a name="l00280"></a>00280         }
<a name="l00281"></a>00281         <span class="keywordflow">if</span> (*cp == <span class="charliteral">&#39;,&#39;</span>) {
<a name="l00282"></a>00282             <span class="keywordtype">char</span> *endptr;
<a name="l00283"></a>00283             cp++;
<a name="l00284"></a>00284             session-&gt;<a class="code" href="structsnmp__session.html#a2575d19e07c2472c7d2d90b2535a048a" title="initial engineTime for remote engine">engineTime</a> = strtoul(cp, &amp;endptr, 10);
<a name="l00285"></a>00285             <span class="keywordflow">if</span> (errno || cp == endptr) {
<a name="l00286"></a>00286                 fprintf(stderr, <span class="stringliteral">&quot;Need engine time after \&quot;-3Z engineBoot,\&quot;.\n&quot;</span>);
<a name="l00287"></a>00287                 <span class="keywordflow">return</span> (-1);
<a name="l00288"></a>00288             }
<a name="l00289"></a>00289         } <span class="keywordflow">else</span> {
<a name="l00290"></a>00290             fprintf(stderr, <span class="stringliteral">&quot;Need engine time after \&quot;-3Z engineBoot,\&quot;.\n&quot;</span>);
<a name="l00291"></a>00291             <span class="keywordflow">return</span> (-1);
<a name="l00292"></a>00292         }
<a name="l00293"></a>00293         <span class="keywordflow">break</span>;
<a name="l00294"></a>00294 
<a name="l00295"></a>00295     <span class="keywordflow">case</span> <span class="charliteral">&#39;e&#39;</span>:{
<a name="l00296"></a>00296             <span class="keywordtype">size_t</span>          ebuf_len = 32, eout_len = 0;
<a name="l00297"></a>00297             u_char         *ebuf = (u_char *) malloc(ebuf_len);
<a name="l00298"></a>00298 
<a name="l00299"></a>00299             <span class="keywordflow">if</span> (ebuf == NULL) {
<a name="l00300"></a>00300                 fprintf(stderr, <span class="stringliteral">&quot;malloc failure processing -3e flag.\n&quot;</span>);
<a name="l00301"></a>00301                 <span class="keywordflow">return</span> (-1);
<a name="l00302"></a>00302             }
<a name="l00303"></a>00303             <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>
<a name="l00304"></a>00304                 (&amp;ebuf, &amp;ebuf_len, &amp;eout_len, 1, optarg)) {
<a name="l00305"></a>00305                 fprintf(stderr, <span class="stringliteral">&quot;Bad engine ID value after -3e flag.\n&quot;</span>);
<a name="l00306"></a>00306                 <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(ebuf);
<a name="l00307"></a>00307                 <span class="keywordflow">return</span> (-1);
<a name="l00308"></a>00308             }
<a name="l00309"></a>00309             session-&gt;<a class="code" href="structsnmp__session.html#aa11c998a39ac508258ccf9169ea22a89" title="authoritative snmpEngineID">securityEngineID</a> = ebuf;
<a name="l00310"></a>00310             session-&gt;<a class="code" href="structsnmp__session.html#a08a450c1b5acbf798b5473c36395edf5" title="Length of contextEngineID.">securityEngineIDLen</a> = eout_len;
<a name="l00311"></a>00311             <span class="keywordflow">break</span>;
<a name="l00312"></a>00312         }
<a name="l00313"></a>00313 
<a name="l00314"></a>00314     <span class="keywordflow">case</span> <span class="charliteral">&#39;E&#39;</span>:{
<a name="l00315"></a>00315             <span class="keywordtype">size_t</span>          ebuf_len = 32, eout_len = 0;
<a name="l00316"></a>00316             u_char         *ebuf = (u_char *) malloc(ebuf_len);
<a name="l00317"></a>00317 
<a name="l00318"></a>00318             <span class="keywordflow">if</span> (ebuf == NULL) {
<a name="l00319"></a>00319                 fprintf(stderr, <span class="stringliteral">&quot;malloc failure processing -3E flag.\n&quot;</span>);
<a name="l00320"></a>00320                 <span class="keywordflow">return</span> (-1);
<a name="l00321"></a>00321             }
<a name="l00322"></a>00322             <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>
<a name="l00323"></a>00323                 (&amp;ebuf, &amp;ebuf_len, &amp;eout_len, 1, optarg)) {
<a name="l00324"></a>00324                 fprintf(stderr, <span class="stringliteral">&quot;Bad engine ID value after -3E flag.\n&quot;</span>);
<a name="l00325"></a>00325                 <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(ebuf);
<a name="l00326"></a>00326                 <span class="keywordflow">return</span> (-1);
<a name="l00327"></a>00327             }
<a name="l00328"></a>00328             session-&gt;<a class="code" href="structsnmp__session.html#aafffd59c5c644b1e3985eb379b6b06d1" title="authoritative snmpEngineID">contextEngineID</a> = ebuf;
<a name="l00329"></a>00329             session-&gt;<a class="code" href="structsnmp__session.html#a1babf5a3e0b7db035f141feacf0390ba" title="Length of contextEngineID.">contextEngineIDLen</a> = eout_len;
<a name="l00330"></a>00330             <span class="keywordflow">break</span>;
<a name="l00331"></a>00331         }
<a name="l00332"></a>00332 
<a name="l00333"></a>00333     <span class="keywordflow">case</span> <span class="charliteral">&#39;n&#39;</span>:
<a name="l00334"></a>00334         session-&gt;<a class="code" href="structsnmp__session.html#abed37d0c605734aa5d7d9ce667ce9497" title="authoritative contextName">contextName</a> = optarg;
<a name="l00335"></a>00335         session-&gt;<a class="code" href="structsnmp__session.html#a63bc78b630144579567b0f8d87c54dc9" title="Length of contextName.">contextNameLen</a> = strlen(optarg);
<a name="l00336"></a>00336         <span class="keywordflow">break</span>;
<a name="l00337"></a>00337 
<a name="l00338"></a>00338     <span class="keywordflow">case</span> <span class="charliteral">&#39;u&#39;</span>:
<a name="l00339"></a>00339         session-&gt;<a class="code" href="structsnmp__session.html#a247882bf1e340be5ec1d22d41d5a0179" title="on behalf of this principal">securityName</a> = optarg;
<a name="l00340"></a>00340         session-&gt;<a class="code" href="structsnmp__session.html#aded39fd06dcaa1159633d3783b9e4941" title="Length of securityName.">securityNameLen</a> = strlen(optarg);
<a name="l00341"></a>00341         <span class="keywordflow">break</span>;
<a name="l00342"></a>00342 
<a name="l00343"></a>00343     <span class="keywordflow">case</span> <span class="charliteral">&#39;l&#39;</span>:
<a name="l00344"></a>00344         <span class="keywordflow">if</span> (!strcasecmp(optarg, <span class="stringliteral">&quot;noAuthNoPriv&quot;</span>) || !strcmp(optarg, <span class="stringliteral">&quot;1&quot;</span>) ||
<a name="l00345"></a>00345             !strcasecmp(optarg, <span class="stringliteral">&quot;nanp&quot;</span>)) {
<a name="l00346"></a>00346             session-&gt;<a class="code" href="structsnmp__session.html#a5394bc51b76c7f0b46e5efb464e87feb" title="noAuthNoPriv, authNoPriv, authPriv">securityLevel</a> = SNMP_SEC_LEVEL_NOAUTH;
<a name="l00347"></a>00347         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strcasecmp(optarg, <span class="stringliteral">&quot;authNoPriv&quot;</span>)
<a name="l00348"></a>00348                    || !strcmp(optarg, <span class="stringliteral">&quot;2&quot;</span>) || !strcasecmp(optarg, <span class="stringliteral">&quot;anp&quot;</span>)) {
<a name="l00349"></a>00349             session-&gt;<a class="code" href="structsnmp__session.html#a5394bc51b76c7f0b46e5efb464e87feb" title="noAuthNoPriv, authNoPriv, authPriv">securityLevel</a> = SNMP_SEC_LEVEL_AUTHNOPRIV;
<a name="l00350"></a>00350         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strcasecmp(optarg, <span class="stringliteral">&quot;authPriv&quot;</span>) || !strcmp(optarg, <span class="stringliteral">&quot;3&quot;</span>)
<a name="l00351"></a>00351                    || !strcasecmp(optarg, <span class="stringliteral">&quot;ap&quot;</span>)) {
<a name="l00352"></a>00352             session-&gt;<a class="code" href="structsnmp__session.html#a5394bc51b76c7f0b46e5efb464e87feb" title="noAuthNoPriv, authNoPriv, authPriv">securityLevel</a> = SNMP_SEC_LEVEL_AUTHPRIV;
<a name="l00353"></a>00353         } <span class="keywordflow">else</span> {
<a name="l00354"></a>00354             fprintf(stderr,
<a name="l00355"></a>00355                     <span class="stringliteral">&quot;Invalid security level specified after -3l flag: %s\n&quot;</span>,
<a name="l00356"></a>00356                     optarg);
<a name="l00357"></a>00357             <span class="keywordflow">return</span> (-1);
<a name="l00358"></a>00358         }
<a name="l00359"></a>00359 
<a name="l00360"></a>00360         <span class="keywordflow">break</span>;
<a name="l00361"></a>00361 
<a name="l00362"></a>00362     <span class="keywordflow">case</span> <span class="charliteral">&#39;a&#39;</span>:
<a name="l00363"></a>00363 <span class="preprocessor">#ifndef NETSNMP_DISABLE_MD5</span>
<a name="l00364"></a>00364 <span class="preprocessor"></span>        <span class="keywordflow">if</span> (!strcasecmp(optarg, <span class="stringliteral">&quot;MD5&quot;</span>)) {
<a name="l00365"></a>00365             session-&gt;<a class="code" href="structsnmp__session.html#acaa4215016fd2f317fbb61b4c55e66d5" title="auth protocol oid">securityAuthProto</a> = usmHMACMD5AuthProtocol;
<a name="l00366"></a>00366             session-&gt;<a class="code" href="structsnmp__session.html#af7a4c741fb6e45967ce17a3a6b71b740" title="Length of auth protocol oid.">securityAuthProtoLen</a> = USM_AUTH_PROTO_MD5_LEN;
<a name="l00367"></a>00367         } <span class="keywordflow">else</span>
<a name="l00368"></a>00368 <span class="preprocessor">#endif</span>
<a name="l00369"></a>00369 <span class="preprocessor"></span>            <span class="keywordflow">if</span> (!strcasecmp(optarg, <span class="stringliteral">&quot;SHA&quot;</span>)) {
<a name="l00370"></a>00370             session-&gt;<a class="code" href="structsnmp__session.html#acaa4215016fd2f317fbb61b4c55e66d5" title="auth protocol oid">securityAuthProto</a> = usmHMACSHA1AuthProtocol;
<a name="l00371"></a>00371             session-&gt;<a class="code" href="structsnmp__session.html#af7a4c741fb6e45967ce17a3a6b71b740" title="Length of auth protocol oid.">securityAuthProtoLen</a> = USM_AUTH_PROTO_SHA_LEN;
<a name="l00372"></a>00372         } <span class="keywordflow">else</span> {
<a name="l00373"></a>00373             fprintf(stderr,
<a name="l00374"></a>00374                     <span class="stringliteral">&quot;Invalid authentication protocol specified after -3a flag: %s\n&quot;</span>,
<a name="l00375"></a>00375                     optarg);
<a name="l00376"></a>00376             <span class="keywordflow">return</span> (-1);
<a name="l00377"></a>00377         }
<a name="l00378"></a>00378         <span class="keywordflow">break</span>;
<a name="l00379"></a>00379 
<a name="l00380"></a>00380     <span class="keywordflow">case</span> <span class="charliteral">&#39;x&#39;</span>:
<a name="l00381"></a>00381         testcase = 0;
<a name="l00382"></a>00382 <span class="preprocessor">#ifndef NETSNMP_DISABLE_DES</span>
<a name="l00383"></a>00383 <span class="preprocessor"></span>        <span class="keywordflow">if</span> (!strcasecmp(optarg, <span class="stringliteral">&quot;DES&quot;</span>)) {
<a name="l00384"></a>00384             session-&gt;<a class="code" href="structsnmp__session.html#a065ac4c2ac34954a61cee33456cd2b55" title="priv protocol oid">securityPrivProto</a> = usmDESPrivProtocol;
<a name="l00385"></a>00385             session-&gt;<a class="code" href="structsnmp__session.html#a2cf935eb076df4886ffaf6c5047834fb" title="Length of priv protocol oid.">securityPrivProtoLen</a> = USM_PRIV_PROTO_DES_LEN;
<a name="l00386"></a>00386             testcase = 1;
<a name="l00387"></a>00387         }
<a name="l00388"></a>00388 <span class="preprocessor">#endif</span>
<a name="l00389"></a>00389 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_AES</span>
<a name="l00390"></a>00390 <span class="preprocessor"></span>        <span class="keywordflow">if</span> (!strcasecmp(optarg, <span class="stringliteral">&quot;AES128&quot;</span>) ||
<a name="l00391"></a>00391             strcasecmp(optarg, <span class="stringliteral">&quot;AES&quot;</span>)) {
<a name="l00392"></a>00392             session-&gt;<a class="code" href="structsnmp__session.html#a065ac4c2ac34954a61cee33456cd2b55" title="priv protocol oid">securityPrivProto</a> = usmAES128PrivProtocol;
<a name="l00393"></a>00393             session-&gt;<a class="code" href="structsnmp__session.html#a2cf935eb076df4886ffaf6c5047834fb" title="Length of priv protocol oid.">securityPrivProtoLen</a> = USM_PRIV_PROTO_AES128_LEN;
<a name="l00394"></a>00394             testcase = 1;
<a name="l00395"></a>00395         }
<a name="l00396"></a>00396 <span class="preprocessor">#endif</span>
<a name="l00397"></a>00397 <span class="preprocessor"></span>        <span class="keywordflow">if</span> (testcase == 0) {
<a name="l00398"></a>00398             fprintf(stderr,
<a name="l00399"></a>00399                     <span class="stringliteral">&quot;Invalid privacy protocol specified after -3x flag: %s\n&quot;</span>,
<a name="l00400"></a>00400                     optarg);
<a name="l00401"></a>00401             <span class="keywordflow">return</span> (-1);
<a name="l00402"></a>00402         }
<a name="l00403"></a>00403         <span class="keywordflow">break</span>;
<a name="l00404"></a>00404 
<a name="l00405"></a>00405     <span class="keywordflow">case</span> <span class="charliteral">&#39;A&#39;</span>:
<a name="l00406"></a>00406         *Apsz = optarg;
<a name="l00407"></a>00407         <span class="keywordflow">break</span>;
<a name="l00408"></a>00408 
<a name="l00409"></a>00409     <span class="keywordflow">case</span> <span class="charliteral">&#39;X&#39;</span>:
<a name="l00410"></a>00410         *Xpsz = optarg;
<a name="l00411"></a>00411         <span class="keywordflow">break</span>;
<a name="l00412"></a>00412 
<a name="l00413"></a>00413     <span class="keywordflow">case</span> <span class="charliteral">&#39;m&#39;</span>: {
<a name="l00414"></a>00414         <span class="keywordtype">size_t</span> bufSize = <span class="keyword">sizeof</span>(session-&gt;<a class="code" href="structsnmp__session.html#a72b041b55b2b9ad6540644845cbe063f" title="Ku for auth protocol XXX.">securityAuthKey</a>);
<a name="l00415"></a>00415         u_char *tmpp = session-&gt;<a class="code" href="structsnmp__session.html#a72b041b55b2b9ad6540644845cbe063f" title="Ku for auth protocol XXX.">securityAuthKey</a>;
<a name="l00416"></a>00416         <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>(&amp;tmpp, &amp;bufSize,
<a name="l00417"></a>00417                                 &amp;session-&gt;<a class="code" href="structsnmp__session.html#a8149ffe5cea795e5080b3cb6f322b5c5" title="Length of Ku for auth protocol.">securityAuthKeyLen</a>, 0, optarg)) {
<a name="l00418"></a>00418             fprintf(stderr, <span class="stringliteral">&quot;Bad key value after -3m flag.\n&quot;</span>);
<a name="l00419"></a>00419             <span class="keywordflow">return</span> (-1);
<a name="l00420"></a>00420         }
<a name="l00421"></a>00421         <span class="keywordflow">break</span>;
<a name="l00422"></a>00422     }
<a name="l00423"></a>00423 
<a name="l00424"></a>00424     <span class="keywordflow">case</span> <span class="charliteral">&#39;M&#39;</span>: {
<a name="l00425"></a>00425         <span class="keywordtype">size_t</span> bufSize = <span class="keyword">sizeof</span>(session-&gt;<a class="code" href="structsnmp__session.html#a19ec576d5360683569d1ade5c5a93031" title="Ku for privacy protocol XXX.">securityPrivKey</a>);
<a name="l00426"></a>00426         u_char *tmpp = session-&gt;<a class="code" href="structsnmp__session.html#a19ec576d5360683569d1ade5c5a93031" title="Ku for privacy protocol XXX.">securityPrivKey</a>;
<a name="l00427"></a>00427         <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>(&amp;tmpp, &amp;bufSize,
<a name="l00428"></a>00428              &amp;session-&gt;<a class="code" href="structsnmp__session.html#a146582d1c5fb7ac68cc0302c673b97bb" title="Length of Ku for priv protocol.">securityPrivKeyLen</a>, 0, optarg)) {
<a name="l00429"></a>00429             fprintf(stderr, <span class="stringliteral">&quot;Bad key value after -3M flag.\n&quot;</span>);
<a name="l00430"></a>00430             <span class="keywordflow">return</span> (-1);
<a name="l00431"></a>00431         }
<a name="l00432"></a>00432         <span class="keywordflow">break</span>;
<a name="l00433"></a>00433     }
<a name="l00434"></a>00434 
<a name="l00435"></a>00435     <span class="keywordflow">case</span> <span class="charliteral">&#39;k&#39;</span>: {
<a name="l00436"></a>00436         <span class="keywordtype">size_t</span>          kbuf_len = 32, kout_len = 0;
<a name="l00437"></a>00437         u_char         *kbuf = (u_char *) malloc(kbuf_len);
<a name="l00438"></a>00438 
<a name="l00439"></a>00439         <span class="keywordflow">if</span> (kbuf == NULL) {
<a name="l00440"></a>00440             fprintf(stderr, <span class="stringliteral">&quot;malloc failure processing -3k flag.\n&quot;</span>);
<a name="l00441"></a>00441             <span class="keywordflow">return</span> (-1);
<a name="l00442"></a>00442         }
<a name="l00443"></a>00443         <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>
<a name="l00444"></a>00444             (&amp;kbuf, &amp;kbuf_len, &amp;kout_len, 1, optarg)) {
<a name="l00445"></a>00445             fprintf(stderr, <span class="stringliteral">&quot;Bad key value after -3k flag.\n&quot;</span>);
<a name="l00446"></a>00446             <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(kbuf);
<a name="l00447"></a>00447             <span class="keywordflow">return</span> (-1);
<a name="l00448"></a>00448         }
<a name="l00449"></a>00449         session-&gt;<a class="code" href="structsnmp__session.html#ad75654aafbe5319b63296e8413a7f817" title="Kul for auth protocol.">securityAuthLocalKey</a> = kbuf;
<a name="l00450"></a>00450         session-&gt;<a class="code" href="structsnmp__session.html#abfeac9d37631b38284a5dbd5a0c8dd86" title="Length of Kul for auth protocol XXX.">securityAuthLocalKeyLen</a> = kout_len;
<a name="l00451"></a>00451         <span class="keywordflow">break</span>;
<a name="l00452"></a>00452     }
<a name="l00453"></a>00453 
<a name="l00454"></a>00454     <span class="keywordflow">case</span> <span class="charliteral">&#39;K&#39;</span>: {
<a name="l00455"></a>00455         <span class="keywordtype">size_t</span>          kbuf_len = 32, kout_len = 0;
<a name="l00456"></a>00456         u_char         *kbuf = (u_char *) malloc(kbuf_len);
<a name="l00457"></a>00457 
<a name="l00458"></a>00458         <span class="keywordflow">if</span> (kbuf == NULL) {
<a name="l00459"></a>00459             fprintf(stderr, <span class="stringliteral">&quot;malloc failure processing -3K flag.\n&quot;</span>);
<a name="l00460"></a>00460             <span class="keywordflow">return</span> (-1);
<a name="l00461"></a>00461         }
<a name="l00462"></a>00462         <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>
<a name="l00463"></a>00463             (&amp;kbuf, &amp;kbuf_len, &amp;kout_len, 1, optarg)) {
<a name="l00464"></a>00464             fprintf(stderr, <span class="stringliteral">&quot;Bad key value after -3K flag.\n&quot;</span>);
<a name="l00465"></a>00465             <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(kbuf);
<a name="l00466"></a>00466             <span class="keywordflow">return</span> (-1);
<a name="l00467"></a>00467         }
<a name="l00468"></a>00468         session-&gt;<a class="code" href="structsnmp__session.html#a7c38601198b252b584f77daed313280e" title="Kul for priv protocol.">securityPrivLocalKey</a> = kbuf;
<a name="l00469"></a>00469         session-&gt;<a class="code" href="structsnmp__session.html#a2ceedc6dca38076e132645a50afc2fbf" title="Length of Kul for priv protocol XXX.">securityPrivLocalKeyLen</a> = kout_len;
<a name="l00470"></a>00470         <span class="keywordflow">break</span>;
<a name="l00471"></a>00471     }
<a name="l00472"></a>00472         
<a name="l00473"></a>00473     <span class="keywordflow">default</span>:
<a name="l00474"></a>00474         fprintf(stderr, <span class="stringliteral">&quot;Unknown SNMPv3 option passed to -3: %c.\n&quot;</span>, *cp);
<a name="l00475"></a>00475         <span class="keywordflow">return</span> -1;
<a name="l00476"></a>00476     }
<a name="l00477"></a>00477     <span class="keywordflow">return</span> 0;
<a name="l00478"></a>00478 }
<a name="l00479"></a>00479 
<a name="l00480"></a>00480 <span class="comment">/*******************************************************************-o-******</span>
<a name="l00481"></a>00481 <span class="comment"> * setup_engineID</span>
<a name="l00482"></a>00482 <span class="comment"> *</span>
<a name="l00483"></a>00483 <span class="comment"> * Parameters:</span>
<a name="l00484"></a>00484 <span class="comment"> *      **eidp</span>
<a name="l00485"></a>00485 <span class="comment"> *       *text  Printable (?) text to be plugged into the snmpEngineID.</span>
<a name="l00486"></a>00486 <span class="comment"> *</span>
<a name="l00487"></a>00487 <span class="comment"> * Return:</span>
<a name="l00488"></a>00488 <span class="comment"> *      Length of allocated engineID string in bytes,  -OR-</span>
<a name="l00489"></a>00489 <span class="comment"> *      -1 on error.</span>
<a name="l00490"></a>00490 <span class="comment"> *</span>
<a name="l00491"></a>00491 <span class="comment"> *</span>
<a name="l00492"></a>00492 <span class="comment"> * Create an snmpEngineID using text and the local IP address.  If eidp</span>
<a name="l00493"></a>00493 <span class="comment"> * is defined, use it to return a pointer to the newly allocated data.</span>
<a name="l00494"></a>00494 <span class="comment"> * Otherwise, use the result to define engineID defined in this module.</span>
<a name="l00495"></a>00495 <span class="comment"> *</span>
<a name="l00496"></a>00496 <span class="comment"> * Line syntax:</span>
<a name="l00497"></a>00497 <span class="comment"> *      engineID &lt;text&gt; | NULL</span>
<a name="l00498"></a>00498 <span class="comment"> *</span>
<a name="l00499"></a>00499 <span class="comment"> * XXX  What if a node has multiple interfaces?</span>
<a name="l00500"></a>00500 <span class="comment"> * XXX  What if multiple engines all choose the same address?</span>
<a name="l00501"></a>00501 <span class="comment"> *      (answer:  You&#39;re screwed, because you might need a kul database</span>
<a name="l00502"></a>00502 <span class="comment"> *       which is dependant on the current engineID.  Enumeration and other</span>
<a name="l00503"></a>00503 <span class="comment"> *       tricks won&#39;t work). </span>
<a name="l00504"></a>00504 <span class="comment"> */</span>
<a name="l00505"></a>00505 <span class="keywordtype">int</span>
<a name="l00506"></a>00506 setup_engineID(u_char ** eidp, <span class="keyword">const</span> <span class="keywordtype">char</span> *text)
<a name="l00507"></a>00507 {
<a name="l00508"></a>00508     <span class="keywordtype">int</span>             enterpriseid = htonl(NETSNMP_ENTERPRISE_OID),
<a name="l00509"></a>00509         netsnmpoid = htonl(NETSNMP_OID),
<a name="l00510"></a>00510         localsetup = (eidp) ? 0 : 1;
<a name="l00511"></a>00511 
<a name="l00512"></a>00512     <span class="comment">/*</span>
<a name="l00513"></a>00513 <span class="comment">     * Use local engineID if *eidp == NULL.  </span>
<a name="l00514"></a>00514 <span class="comment">     */</span>
<a name="l00515"></a>00515 <span class="preprocessor">#ifdef HAVE_GETHOSTNAME</span>
<a name="l00516"></a>00516 <span class="preprocessor"></span>    u_char          buf[SNMP_MAXBUF_SMALL];
<a name="l00517"></a>00517     <span class="keyword">struct </span>hostent *hent = NULL;
<a name="l00518"></a>00518 <span class="preprocessor">#endif</span>
<a name="l00519"></a>00519 <span class="preprocessor"></span>    u_char         *bufp = NULL;
<a name="l00520"></a>00520     <span class="keywordtype">size_t</span>          len;
<a name="l00521"></a>00521     <span class="keywordtype">int</span>             localEngineIDType = engineIDType;
<a name="l00522"></a>00522     <span class="keywordtype">int</span>             tmpint;
<a name="l00523"></a>00523     time_t          tmptime;
<a name="l00524"></a>00524 
<a name="l00525"></a>00525     engineIDIsSet = 1;
<a name="l00526"></a>00526 
<a name="l00527"></a>00527 <span class="preprocessor">#ifdef HAVE_GETHOSTNAME</span>
<a name="l00528"></a>00528 <span class="preprocessor"></span><span class="preprocessor">#ifdef AF_INET6</span>
<a name="l00529"></a>00529 <span class="preprocessor"></span>    <span class="comment">/*</span>
<a name="l00530"></a>00530 <span class="comment">     * see if they selected IPV4 or IPV6 support </span>
<a name="l00531"></a>00531 <span class="comment">     */</span>
<a name="l00532"></a>00532     <span class="keywordflow">if</span> ((ENGINEID_TYPE_IPV6 == localEngineIDType) ||
<a name="l00533"></a>00533         (ENGINEID_TYPE_IPV4 == localEngineIDType)) {
<a name="l00534"></a>00534         <span class="comment">/*</span>
<a name="l00535"></a>00535 <span class="comment">         * get the host name and save the information </span>
<a name="l00536"></a>00536 <span class="comment">         */</span>
<a name="l00537"></a>00537         gethostname((<span class="keywordtype">char</span> *) buf, <span class="keyword">sizeof</span>(buf));
<a name="l00538"></a>00538         hent = gethostbyname((<span class="keywordtype">char</span> *) buf);
<a name="l00539"></a>00539         <span class="keywordflow">if</span> (hent &amp;&amp; hent-&gt;h_addrtype == AF_INET6) {
<a name="l00540"></a>00540             localEngineIDType = ENGINEID_TYPE_IPV6;
<a name="l00541"></a>00541         } <span class="keywordflow">else</span> {
<a name="l00542"></a>00542             <span class="comment">/*</span>
<a name="l00543"></a>00543 <span class="comment">             * Not IPV6 so we go with default </span>
<a name="l00544"></a>00544 <span class="comment">             */</span>
<a name="l00545"></a>00545             localEngineIDType = ENGINEID_TYPE_IPV4;
<a name="l00546"></a>00546         }
<a name="l00547"></a>00547     }
<a name="l00548"></a>00548 <span class="preprocessor">#else</span>
<a name="l00549"></a>00549 <span class="preprocessor"></span>    <span class="comment">/*</span>
<a name="l00550"></a>00550 <span class="comment">     * No IPV6 support.  Check if they selected IPV6 engineID type.</span>
<a name="l00551"></a>00551 <span class="comment">     *  If so make it IPV4 instead </span>
<a name="l00552"></a>00552 <span class="comment">     */</span>
<a name="l00553"></a>00553     <span class="keywordflow">if</span> (ENGINEID_TYPE_IPV6 == localEngineIDType) {
<a name="l00554"></a>00554         localEngineIDType = ENGINEID_TYPE_IPV4;
<a name="l00555"></a>00555     }
<a name="l00556"></a>00556     <span class="keywordflow">if</span> (ENGINEID_TYPE_IPV4 == localEngineIDType) {
<a name="l00557"></a>00557         <span class="comment">/*</span>
<a name="l00558"></a>00558 <span class="comment">         * get the host name and save the information </span>
<a name="l00559"></a>00559 <span class="comment">         */</span>
<a name="l00560"></a>00560         gethostname((<span class="keywordtype">char</span> *) buf, <span class="keyword">sizeof</span>(buf));
<a name="l00561"></a>00561         hent = gethostbyname((<span class="keywordtype">char</span> *) buf);
<a name="l00562"></a>00562     }
<a name="l00563"></a>00563 <span class="preprocessor">#endif</span>
<a name="l00564"></a>00564 <span class="preprocessor"></span><span class="preprocessor">#endif                          </span><span class="comment">/* HAVE_GETHOSTNAME */</span>
<a name="l00565"></a>00565 
<a name="l00566"></a>00566     <span class="comment">/*</span>
<a name="l00567"></a>00567 <span class="comment">     * Determine if we have text and if so setup our localEngineIDType</span>
<a name="l00568"></a>00568 <span class="comment">     * * appropriately.  </span>
<a name="l00569"></a>00569 <span class="comment">     */</span>
<a name="l00570"></a>00570     <span class="keywordflow">if</span> (NULL != text) {
<a name="l00571"></a>00571         engineIDType = localEngineIDType = ENGINEID_TYPE_TEXT;
<a name="l00572"></a>00572     }
<a name="l00573"></a>00573     <span class="comment">/*</span>
<a name="l00574"></a>00574 <span class="comment">     * Determine length of the engineID string. </span>
<a name="l00575"></a>00575 <span class="comment">     */</span>
<a name="l00576"></a>00576     len = 5;                    <span class="comment">/* always have 5 leading bytes */</span>
<a name="l00577"></a>00577     <span class="keywordflow">switch</span> (localEngineIDType) {
<a name="l00578"></a>00578     <span class="keywordflow">case</span> ENGINEID_TYPE_TEXT:
<a name="l00579"></a>00579         <span class="keywordflow">if</span> (NULL == text) {
<a name="l00580"></a>00580             <a class="code" href="group__snmp__logging.html#ga9ba905368ea1c551b969af44b13e37c2" title="This snmp logging function allows variable argument list given the specified format and priority...">snmp_log</a>(LOG_ERR,
<a name="l00581"></a>00581                      <span class="stringliteral">&quot;Can&#39;t set up engineID of type text from an empty string.\n&quot;</span>);
<a name="l00582"></a>00582             <span class="keywordflow">return</span> -1;
<a name="l00583"></a>00583         }
<a name="l00584"></a>00584         len += strlen(text);    <span class="comment">/* 5 leading bytes+text. No NULL char */</span>
<a name="l00585"></a>00585         <span class="keywordflow">break</span>;
<a name="l00586"></a>00586 <span class="preprocessor">#if defined(IFHWADDRLEN) &amp;&amp; defined(SIOCGIFHWADDR)</span>
<a name="l00587"></a>00587 <span class="preprocessor"></span>    <span class="keywordflow">case</span> ENGINEID_TYPE_MACADDR:        <span class="comment">/* MAC address */</span>
<a name="l00588"></a>00588         len += 6;               <span class="comment">/* + 6 bytes for MAC address */</span>
<a name="l00589"></a>00589         <span class="keywordflow">break</span>;
<a name="l00590"></a>00590 <span class="preprocessor">#endif</span>
<a name="l00591"></a>00591 <span class="preprocessor"></span>    <span class="keywordflow">case</span> ENGINEID_TYPE_IPV4:   <span class="comment">/* IPv4 */</span>
<a name="l00592"></a>00592         len += 4;               <span class="comment">/* + 4 byte IPV4 address */</span>
<a name="l00593"></a>00593         <span class="keywordflow">break</span>;
<a name="l00594"></a>00594     <span class="keywordflow">case</span> ENGINEID_TYPE_IPV6:   <span class="comment">/* IPv6 */</span>
<a name="l00595"></a>00595         len += 16;              <span class="comment">/* + 16 byte IPV6 address */</span>
<a name="l00596"></a>00596         <span class="keywordflow">break</span>;
<a name="l00597"></a>00597     <span class="keywordflow">case</span> ENGINEID_TYPE_NETSNMP_RND:        <span class="comment">/* Net-SNMP specific encoding */</span>
<a name="l00598"></a>00598         <span class="keywordflow">if</span> (engineID)           <span class="comment">/* already setup, keep current value */</span>
<a name="l00599"></a>00599             <span class="keywordflow">return</span> engineIDLength;
<a name="l00600"></a>00600         <span class="keywordflow">if</span> (oldEngineID) {
<a name="l00601"></a>00601             len = oldEngineIDLength;
<a name="l00602"></a>00602         } <span class="keywordflow">else</span> {
<a name="l00603"></a>00603             len += <span class="keyword">sizeof</span>(int) + <span class="keyword">sizeof</span>(time_t);
<a name="l00604"></a>00604         }
<a name="l00605"></a>00605         <span class="keywordflow">break</span>;
<a name="l00606"></a>00606     <span class="keywordflow">default</span>:
<a name="l00607"></a>00607         <a class="code" href="group__snmp__logging.html#ga9ba905368ea1c551b969af44b13e37c2" title="This snmp logging function allows variable argument list given the specified format and priority...">snmp_log</a>(LOG_ERR,
<a name="l00608"></a>00608                  <span class="stringliteral">&quot;Unknown EngineID type requested for setup (%d).  Using IPv4.\n&quot;</span>,
<a name="l00609"></a>00609                  localEngineIDType);
<a name="l00610"></a>00610         localEngineIDType = ENGINEID_TYPE_IPV4; <span class="comment">/* make into IPV4 */</span>
<a name="l00611"></a>00611         len += 4;               <span class="comment">/* + 4 byte IPv4 address */</span>
<a name="l00612"></a>00612         <span class="keywordflow">break</span>;
<a name="l00613"></a>00613     }                           <span class="comment">/* switch */</span>
<a name="l00614"></a>00614 
<a name="l00615"></a>00615 
<a name="l00616"></a>00616     <span class="comment">/*</span>
<a name="l00617"></a>00617 <span class="comment">     * Allocate memory and store enterprise ID.</span>
<a name="l00618"></a>00618 <span class="comment">     */</span>
<a name="l00619"></a>00619     <span class="keywordflow">if</span> ((bufp = (u_char *) malloc(len)) == NULL) {
<a name="l00620"></a>00620         snmp_log_perror(<span class="stringliteral">&quot;setup_engineID malloc&quot;</span>);
<a name="l00621"></a>00621         <span class="keywordflow">return</span> -1;
<a name="l00622"></a>00622     }
<a name="l00623"></a>00623     <span class="keywordflow">if</span> (localEngineIDType == ENGINEID_TYPE_NETSNMP_RND)
<a name="l00624"></a>00624         <span class="comment">/*</span>
<a name="l00625"></a>00625 <span class="comment">         * we must use the net-snmp enterprise id here, regardless </span>
<a name="l00626"></a>00626 <span class="comment">         */</span>
<a name="l00627"></a>00627         memcpy(bufp, &amp;netsnmpoid, <span class="keyword">sizeof</span>(netsnmpoid));    <span class="comment">/* XXX Must be 4 bytes! */</span>
<a name="l00628"></a>00628     <span class="keywordflow">else</span>
<a name="l00629"></a>00629         memcpy(bufp, &amp;enterpriseid, <span class="keyword">sizeof</span>(enterpriseid));      <span class="comment">/* XXX Must be 4 bytes! */</span>
<a name="l00630"></a>00630 
<a name="l00631"></a>00631     bufp[0] |= 0x80;
<a name="l00632"></a>00632 
<a name="l00633"></a>00633 
<a name="l00634"></a>00634     <span class="comment">/*</span>
<a name="l00635"></a>00635 <span class="comment">     * Store the given text  -OR-   the first found IP address</span>
<a name="l00636"></a>00636 <span class="comment">     *  -OR-  the MAC address  -OR-  random elements</span>
<a name="l00637"></a>00637 <span class="comment">     * (the latter being the recommended default)</span>
<a name="l00638"></a>00638 <span class="comment">     */</span>
<a name="l00639"></a>00639     <span class="keywordflow">switch</span> (localEngineIDType) {
<a name="l00640"></a>00640     <span class="keywordflow">case</span> ENGINEID_TYPE_NETSNMP_RND:
<a name="l00641"></a>00641         <span class="keywordflow">if</span> (oldEngineID) {
<a name="l00642"></a>00642             <span class="comment">/*</span>
<a name="l00643"></a>00643 <span class="comment">             * keep our previous notion of the engineID </span>
<a name="l00644"></a>00644 <span class="comment">             */</span>
<a name="l00645"></a>00645             memcpy(bufp, oldEngineID, oldEngineIDLength);
<a name="l00646"></a>00646         } <span class="keywordflow">else</span> {
<a name="l00647"></a>00647             <span class="comment">/*</span>
<a name="l00648"></a>00648 <span class="comment">             * Here we&#39;ve desigend our own ENGINEID that is not based on</span>
<a name="l00649"></a>00649 <span class="comment">             * an address which may change and may even become conflicting</span>
<a name="l00650"></a>00650 <span class="comment">             * in the future like most of the default v3 engineID types</span>
<a name="l00651"></a>00651 <span class="comment">             * suffer from.</span>
<a name="l00652"></a>00652 <span class="comment">             * </span>
<a name="l00653"></a>00653 <span class="comment">             * Ours is built from 2 fairly random elements: a random number and</span>
<a name="l00654"></a>00654 <span class="comment">             * the current time in seconds.  This method suffers from boxes</span>
<a name="l00655"></a>00655 <span class="comment">             * that may not have a correct clock setting and random number</span>
<a name="l00656"></a>00656 <span class="comment">             * seed at startup, but few OSes should have that problem.</span>
<a name="l00657"></a>00657 <span class="comment">             */</span>
<a name="l00658"></a>00658             bufp[4] = ENGINEID_TYPE_NETSNMP_RND;
<a name="l00659"></a>00659             tmpint = random();
<a name="l00660"></a>00660             memcpy(bufp + 5, &amp;tmpint, <span class="keyword">sizeof</span>(tmpint));
<a name="l00661"></a>00661             tmptime = time(NULL);
<a name="l00662"></a>00662             memcpy(bufp + 5 + <span class="keyword">sizeof</span>(tmpint), &amp;tmptime, <span class="keyword">sizeof</span>(tmptime));
<a name="l00663"></a>00663         }
<a name="l00664"></a>00664         <span class="keywordflow">break</span>;
<a name="l00665"></a>00665     <span class="keywordflow">case</span> ENGINEID_TYPE_TEXT:
<a name="l00666"></a>00666         bufp[4] = ENGINEID_TYPE_TEXT;
<a name="l00667"></a>00667         memcpy((<span class="keywordtype">char</span> *) bufp + 5, (text), strlen(text));
<a name="l00668"></a>00668         <span class="keywordflow">break</span>;
<a name="l00669"></a>00669 <span class="preprocessor">#ifdef HAVE_GETHOSTNAME</span>
<a name="l00670"></a>00670 <span class="preprocessor"></span><span class="preprocessor">#ifdef AF_INET6</span>
<a name="l00671"></a>00671 <span class="preprocessor"></span>    <span class="keywordflow">case</span> ENGINEID_TYPE_IPV6:
<a name="l00672"></a>00672         bufp[4] = ENGINEID_TYPE_IPV6;
<a name="l00673"></a>00673         memcpy(bufp + 5, hent-&gt;h_addr_list[0], hent-&gt;h_length);
<a name="l00674"></a>00674         <span class="keywordflow">break</span>;
<a name="l00675"></a>00675 <span class="preprocessor">#endif</span>
<a name="l00676"></a>00676 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00677"></a>00677 <span class="preprocessor"></span><span class="preprocessor">#if defined(IFHWADDRLEN) &amp;&amp; defined(SIOCGIFHWADDR)</span>
<a name="l00678"></a>00678 <span class="preprocessor"></span>    <span class="keywordflow">case</span> ENGINEID_TYPE_MACADDR:
<a name="l00679"></a>00679         {
<a name="l00680"></a>00680             <span class="keywordtype">int</span>             x;
<a name="l00681"></a>00681             bufp[4] = ENGINEID_TYPE_MACADDR;
<a name="l00682"></a>00682             <span class="comment">/*</span>
<a name="l00683"></a>00683 <span class="comment">             * use default NIC if none provided </span>
<a name="l00684"></a>00684 <span class="comment">             */</span>
<a name="l00685"></a>00685             <span class="keywordflow">if</span> (NULL == engineIDNic) {
<a name="l00686"></a>00686               x = getHwAddress(DEFAULT_NIC, (<span class="keywordtype">char</span> *)&amp;bufp[5]);
<a name="l00687"></a>00687             } <span class="keywordflow">else</span> {
<a name="l00688"></a>00688               x = getHwAddress((<span class="keywordtype">char</span> *)engineIDNic, (<span class="keywordtype">char</span> *)&amp;bufp[5]);
<a name="l00689"></a>00689             }
<a name="l00690"></a>00690             <span class="keywordflow">if</span> (0 != x)
<a name="l00691"></a>00691                 <span class="comment">/*</span>
<a name="l00692"></a>00692 <span class="comment">                 * function failed fill MAC address with zeros </span>
<a name="l00693"></a>00693 <span class="comment">                 */</span>
<a name="l00694"></a>00694             {
<a name="l00695"></a>00695                 memset(&amp;bufp[5], 0, 6);
<a name="l00696"></a>00696             }
<a name="l00697"></a>00697         }
<a name="l00698"></a>00698         <span class="keywordflow">break</span>;
<a name="l00699"></a>00699 <span class="preprocessor">#endif</span>
<a name="l00700"></a>00700 <span class="preprocessor"></span>    <span class="keywordflow">case</span> ENGINEID_TYPE_IPV4:
<a name="l00701"></a>00701     <span class="keywordflow">default</span>:
<a name="l00702"></a>00702         bufp[4] = ENGINEID_TYPE_IPV4;
<a name="l00703"></a>00703 <span class="preprocessor">#ifdef HAVE_GETHOSTNAME</span>
<a name="l00704"></a>00704 <span class="preprocessor"></span>        <span class="keywordflow">if</span> (hent &amp;&amp; hent-&gt;h_addrtype == AF_INET) {
<a name="l00705"></a>00705             memcpy(bufp + 5, hent-&gt;h_addr_list[0], hent-&gt;h_length);
<a name="l00706"></a>00706         } <span class="keywordflow">else</span> {                <span class="comment">/* Unknown address type.  Default to 127.0.0.1. */</span>
<a name="l00707"></a>00707 
<a name="l00708"></a>00708             bufp[5] = 127;
<a name="l00709"></a>00709             bufp[6] = 0;
<a name="l00710"></a>00710             bufp[7] = 0;
<a name="l00711"></a>00711             bufp[8] = 1;
<a name="l00712"></a>00712         }
<a name="l00713"></a>00713 <span class="preprocessor">#else                           </span><span class="comment">/* HAVE_GETHOSTNAME */</span>
<a name="l00714"></a>00714         <span class="comment">/*</span>
<a name="l00715"></a>00715 <span class="comment">         * Unknown address type.  Default to 127.0.0.1. </span>
<a name="l00716"></a>00716 <span class="comment">         */</span>
<a name="l00717"></a>00717         bufp[5] = 127;
<a name="l00718"></a>00718         bufp[6] = 0;
<a name="l00719"></a>00719         bufp[7] = 0;
<a name="l00720"></a>00720         bufp[8] = 1;
<a name="l00721"></a>00721 <span class="preprocessor">#endif                          </span><span class="comment">/* HAVE_GETHOSTNAME */</span>
<a name="l00722"></a>00722         <span class="keywordflow">break</span>;
<a name="l00723"></a>00723     }
<a name="l00724"></a>00724 
<a name="l00725"></a>00725     <span class="comment">/*</span>
<a name="l00726"></a>00726 <span class="comment">     * Pass the string back to the calling environment, or use it for</span>
<a name="l00727"></a>00727 <span class="comment">     * our local engineID.</span>
<a name="l00728"></a>00728 <span class="comment">     */</span>
<a name="l00729"></a>00729     <span class="keywordflow">if</span> (localsetup) {
<a name="l00730"></a>00730         <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(engineID);
<a name="l00731"></a>00731         engineID = bufp;
<a name="l00732"></a>00732         engineIDLength = len;
<a name="l00733"></a>00733 
<a name="l00734"></a>00734     } <span class="keywordflow">else</span> {
<a name="l00735"></a>00735         *eidp = bufp;
<a name="l00736"></a>00736     }
<a name="l00737"></a>00737 
<a name="l00738"></a>00738 
<a name="l00739"></a>00739     <span class="keywordflow">return</span> len;
<a name="l00740"></a>00740 
<a name="l00741"></a>00741 }                               <span class="comment">/* end setup_engineID() */</span>
<a name="l00742"></a>00742 
<a name="l00743"></a>00743 <span class="keywordtype">int</span>
<a name="l00744"></a>00744 free_engineID(<span class="keywordtype">int</span> majorid, <span class="keywordtype">int</span> minorid, <span class="keywordtype">void</span> *serverarg,
<a name="l00745"></a>00745               <span class="keywordtype">void</span> *clientarg)
<a name="l00746"></a>00746 {
<a name="l00747"></a>00747     <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(engineID);
<a name="l00748"></a>00748     <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(engineIDNic);
<a name="l00749"></a>00749     <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(oldEngineID);
<a name="l00750"></a>00750     <span class="keywordflow">return</span> 0;
<a name="l00751"></a>00751 }
<a name="l00752"></a>00752 
<a name="l00753"></a>00753 <span class="keywordtype">int</span>
<a name="l00754"></a>00754 free_enginetime_on_shutdown(<span class="keywordtype">int</span> majorid, <span class="keywordtype">int</span> minorid, <span class="keywordtype">void</span> *serverarg,
<a name="l00755"></a>00755                             <span class="keywordtype">void</span> *clientarg)
<a name="l00756"></a>00756 {
<a name="l00757"></a>00757     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;free enginetime callback called\n&quot;</span>));
<a name="l00758"></a>00758     <span class="keywordflow">if</span> (engineID != NULL)
<a name="l00759"></a>00759         free_enginetime(engineID, engineIDLength);
<a name="l00760"></a>00760     <span class="keywordflow">return</span> 0;
<a name="l00761"></a>00761 }
<a name="l00762"></a>00762 
<a name="l00763"></a>00763 <span class="keywordtype">void</span>
<a name="l00764"></a>00764 usm_parse_create_usmUser(<span class="keyword">const</span> <span class="keywordtype">char</span> *token, <span class="keywordtype">char</span> *line)
<a name="l00765"></a>00765 {
<a name="l00766"></a>00766     <span class="keywordtype">char</span>           *cp;
<a name="l00767"></a>00767     <span class="keywordtype">char</span>            buf[SNMP_MAXBUF_MEDIUM];
<a name="l00768"></a>00768     <span class="keyword">struct </span><a class="code" href="structusmUser.html">usmUser</a> *newuser;
<a name="l00769"></a>00769     u_char          userKey[SNMP_MAXBUF_SMALL], *tmpp;
<a name="l00770"></a>00770     <span class="keywordtype">size_t</span>          userKeyLen = SNMP_MAXBUF_SMALL;
<a name="l00771"></a>00771     <span class="keywordtype">size_t</span>          privKeyLen = 0;
<a name="l00772"></a>00772     <span class="keywordtype">size_t</span>          ret;
<a name="l00773"></a>00773     <span class="keywordtype">int</span>             ret2;
<a name="l00774"></a>00774     <span class="keywordtype">int</span>             testcase;
<a name="l00775"></a>00775 
<a name="l00776"></a>00776     newuser = usm_create_user();
<a name="l00777"></a>00777 
<a name="l00778"></a>00778     <span class="comment">/*</span>
<a name="l00779"></a>00779 <span class="comment">     * READ: Security Name </span>
<a name="l00780"></a>00780 <span class="comment">     */</span>
<a name="l00781"></a>00781     cp = copy_nword(line, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00782"></a>00782 
<a name="l00783"></a>00783     <span class="comment">/*</span>
<a name="l00784"></a>00784 <span class="comment">     * might be a -e ENGINEID argument </span>
<a name="l00785"></a>00785 <span class="comment">     */</span>
<a name="l00786"></a>00786     <span class="keywordflow">if</span> (strcmp(buf, <span class="stringliteral">&quot;-e&quot;</span>) == 0) {
<a name="l00787"></a>00787         <span class="keywordtype">size_t</span>          ebuf_len = 32, eout_len = 0;
<a name="l00788"></a>00788         u_char         *ebuf = (u_char *) malloc(ebuf_len);
<a name="l00789"></a>00789 
<a name="l00790"></a>00790         <span class="keywordflow">if</span> (ebuf == NULL) {
<a name="l00791"></a>00791             config_perror(<span class="stringliteral">&quot;malloc failure processing -e flag&quot;</span>);
<a name="l00792"></a>00792             usm_free_user(newuser);
<a name="l00793"></a>00793             <span class="keywordflow">return</span>;
<a name="l00794"></a>00794         }
<a name="l00795"></a>00795 
<a name="l00796"></a>00796         <span class="comment">/*</span>
<a name="l00797"></a>00797 <span class="comment">         * Get the specified engineid from the line.  </span>
<a name="l00798"></a>00798 <span class="comment">         */</span>
<a name="l00799"></a>00799         cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00800"></a>00800         <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>(&amp;ebuf, &amp;ebuf_len, &amp;eout_len, 1, buf)) {
<a name="l00801"></a>00801             config_perror(<span class="stringliteral">&quot;invalid EngineID argument to -e&quot;</span>);
<a name="l00802"></a>00802             usm_free_user(newuser);
<a name="l00803"></a>00803             <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(ebuf);
<a name="l00804"></a>00804             <span class="keywordflow">return</span>;
<a name="l00805"></a>00805         }
<a name="l00806"></a>00806 
<a name="l00807"></a>00807         newuser-&gt;engineID = ebuf;
<a name="l00808"></a>00808         newuser-&gt;engineIDLen = eout_len;
<a name="l00809"></a>00809         cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00810"></a>00810     } <span class="keywordflow">else</span> {
<a name="l00811"></a>00811         newuser-&gt;engineID = snmpv3_generate_engineID(&amp;ret);
<a name="l00812"></a>00812         <span class="keywordflow">if</span> (ret == 0) {
<a name="l00813"></a>00813             usm_free_user(newuser);
<a name="l00814"></a>00814             <span class="keywordflow">return</span>;
<a name="l00815"></a>00815         }
<a name="l00816"></a>00816         newuser-&gt;engineIDLen = ret;
<a name="l00817"></a>00817     }
<a name="l00818"></a>00818 
<a name="l00819"></a>00819     newuser-&gt;secName = strdup(buf);
<a name="l00820"></a>00820     newuser-&gt;name = strdup(buf);
<a name="l00821"></a>00821 
<a name="l00822"></a>00822     <span class="keywordflow">if</span> (!cp)
<a name="l00823"></a>00823         <span class="keywordflow">goto</span> add;               <span class="comment">/* no authentication or privacy type */</span>
<a name="l00824"></a>00824 
<a name="l00825"></a>00825     <span class="comment">/*</span>
<a name="l00826"></a>00826 <span class="comment">     * READ: Authentication Type </span>
<a name="l00827"></a>00827 <span class="comment">     */</span>
<a name="l00828"></a>00828 <span class="preprocessor">#ifndef NETSNMP_DISABLE_MD5</span>
<a name="l00829"></a>00829 <span class="preprocessor"></span>    <span class="keywordflow">if</span> (strncmp(cp, <span class="stringliteral">&quot;MD5&quot;</span>, 3) == 0) {
<a name="l00830"></a>00830         memcpy(newuser-&gt;authProtocol, usmHMACMD5AuthProtocol,
<a name="l00831"></a>00831                <span class="keyword">sizeof</span>(usmHMACMD5AuthProtocol));
<a name="l00832"></a>00832     } <span class="keywordflow">else</span>
<a name="l00833"></a>00833 <span class="preprocessor">#endif</span>
<a name="l00834"></a>00834 <span class="preprocessor"></span>        <span class="keywordflow">if</span> (strncmp(cp, <span class="stringliteral">&quot;SHA&quot;</span>, 3) == 0) {
<a name="l00835"></a>00835         memcpy(newuser-&gt;authProtocol, usmHMACSHA1AuthProtocol,
<a name="l00836"></a>00836                <span class="keyword">sizeof</span>(usmHMACSHA1AuthProtocol));
<a name="l00837"></a>00837     } <span class="keywordflow">else</span> {
<a name="l00838"></a>00838         config_perror(<span class="stringliteral">&quot;Unknown authentication protocol&quot;</span>);
<a name="l00839"></a>00839         usm_free_user(newuser);
<a name="l00840"></a>00840         <span class="keywordflow">return</span>;
<a name="l00841"></a>00841     }
<a name="l00842"></a>00842 
<a name="l00843"></a>00843     cp = skip_token(cp);
<a name="l00844"></a>00844 
<a name="l00845"></a>00845     <span class="comment">/*</span>
<a name="l00846"></a>00846 <span class="comment">     * READ: Authentication Pass Phrase or key</span>
<a name="l00847"></a>00847 <span class="comment">     */</span>
<a name="l00848"></a>00848     <span class="keywordflow">if</span> (!cp) {
<a name="l00849"></a>00849         config_perror(<span class="stringliteral">&quot;no authentication pass phrase&quot;</span>);
<a name="l00850"></a>00850         usm_free_user(newuser);
<a name="l00851"></a>00851         <span class="keywordflow">return</span>;
<a name="l00852"></a>00852     }
<a name="l00853"></a>00853     cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00854"></a>00854     <span class="keywordflow">if</span> (strcmp(buf,<span class="stringliteral">&quot;-m&quot;</span>) == 0) {
<a name="l00855"></a>00855         <span class="comment">/* a master key is specified */</span>
<a name="l00856"></a>00856         cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00857"></a>00857         ret = <span class="keyword">sizeof</span>(userKey);
<a name="l00858"></a>00858         tmpp = userKey;
<a name="l00859"></a>00859         userKeyLen = 0;
<a name="l00860"></a>00860         <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>(&amp;tmpp, &amp;ret, &amp;userKeyLen, 0, buf)) {
<a name="l00861"></a>00861             config_perror(<span class="stringliteral">&quot;invalid key value argument to -m&quot;</span>);
<a name="l00862"></a>00862             usm_free_user(newuser);
<a name="l00863"></a>00863             <span class="keywordflow">return</span>;
<a name="l00864"></a>00864         }
<a name="l00865"></a>00865     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(buf,<span class="stringliteral">&quot;-l&quot;</span>) != 0) {
<a name="l00866"></a>00866         <span class="comment">/* a password is specified */</span>
<a name="l00867"></a>00867         userKeyLen = <span class="keyword">sizeof</span>(userKey);
<a name="l00868"></a>00868         ret2 = generate_Ku(newuser-&gt;authProtocol, newuser-&gt;authProtocolLen,
<a name="l00869"></a>00869                           (u_char *) buf, strlen(buf), userKey, &amp;userKeyLen);
<a name="l00870"></a>00870         <span class="keywordflow">if</span> (ret2 != SNMPERR_SUCCESS) {
<a name="l00871"></a>00871             config_perror(<span class="stringliteral">&quot;could not generate the authentication key from the &quot;</span>
<a name="l00872"></a>00872                           <span class="stringliteral">&quot;supplied pass phrase.&quot;</span>);
<a name="l00873"></a>00873             usm_free_user(newuser);
<a name="l00874"></a>00874             <span class="keywordflow">return</span>;
<a name="l00875"></a>00875         }
<a name="l00876"></a>00876     }        
<a name="l00877"></a>00877         
<a name="l00878"></a>00878     <span class="comment">/*</span>
<a name="l00879"></a>00879 <span class="comment">     * And turn it into a localized key </span>
<a name="l00880"></a>00880 <span class="comment">     */</span>
<a name="l00881"></a>00881     ret2 = sc_get_properlength(newuser-&gt;authProtocol,
<a name="l00882"></a>00882                                newuser-&gt;authProtocolLen);
<a name="l00883"></a>00883     <span class="keywordflow">if</span> (ret2 &lt;= 0) {
<a name="l00884"></a>00884         config_perror(<span class="stringliteral">&quot;Could not get proper authentication protocol key length&quot;</span>);
<a name="l00885"></a>00885         <span class="keywordflow">return</span>;
<a name="l00886"></a>00886     }
<a name="l00887"></a>00887     newuser-&gt;authKey = (u_char *) malloc(ret2);
<a name="l00888"></a>00888 
<a name="l00889"></a>00889     <span class="keywordflow">if</span> (strcmp(buf,<span class="stringliteral">&quot;-l&quot;</span>) == 0) {
<a name="l00890"></a>00890         <span class="comment">/* a local key is directly specified */</span>
<a name="l00891"></a>00891         cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00892"></a>00892         newuser-&gt;authKeyLen = 0;
<a name="l00893"></a>00893         ret = ret2;
<a name="l00894"></a>00894         <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>(&amp;newuser-&gt;authKey, &amp;ret,
<a name="l00895"></a>00895                                 &amp;newuser-&gt;authKeyLen, 0, buf)) {
<a name="l00896"></a>00896             config_perror(<span class="stringliteral">&quot;invalid key value argument to -l&quot;</span>);
<a name="l00897"></a>00897             usm_free_user(newuser);
<a name="l00898"></a>00898             <span class="keywordflow">return</span>;
<a name="l00899"></a>00899         }
<a name="l00900"></a>00900         <span class="keywordflow">if</span> (ret != newuser-&gt;authKeyLen) {
<a name="l00901"></a>00901             config_perror(<span class="stringliteral">&quot;improper key length to -l&quot;</span>);
<a name="l00902"></a>00902             usm_free_user(newuser);
<a name="l00903"></a>00903             <span class="keywordflow">return</span>;
<a name="l00904"></a>00904         }
<a name="l00905"></a>00905     } <span class="keywordflow">else</span> {
<a name="l00906"></a>00906         newuser-&gt;authKeyLen = ret2;
<a name="l00907"></a>00907         ret2 = generate_kul(newuser-&gt;authProtocol, newuser-&gt;authProtocolLen,
<a name="l00908"></a>00908                            newuser-&gt;engineID, newuser-&gt;engineIDLen,
<a name="l00909"></a>00909                            userKey, userKeyLen,
<a name="l00910"></a>00910                            newuser-&gt;authKey, &amp;newuser-&gt;authKeyLen);
<a name="l00911"></a>00911         <span class="keywordflow">if</span> (ret2 != SNMPERR_SUCCESS) {
<a name="l00912"></a>00912             config_perror(<span class="stringliteral">&quot;could not generate localized authentication key &quot;</span>
<a name="l00913"></a>00913                           <span class="stringliteral">&quot;(Kul) from the master key (Ku).&quot;</span>);
<a name="l00914"></a>00914             usm_free_user(newuser);
<a name="l00915"></a>00915             <span class="keywordflow">return</span>;
<a name="l00916"></a>00916         }
<a name="l00917"></a>00917     }
<a name="l00918"></a>00918 
<a name="l00919"></a>00919     <span class="keywordflow">if</span> (!cp)
<a name="l00920"></a>00920         <span class="keywordflow">goto</span> add;               <span class="comment">/* no privacy type (which is legal) */</span>
<a name="l00921"></a>00921 
<a name="l00922"></a>00922     <span class="comment">/*</span>
<a name="l00923"></a>00923 <span class="comment">     * READ: Privacy Type </span>
<a name="l00924"></a>00924 <span class="comment">     */</span>
<a name="l00925"></a>00925     testcase = 0;
<a name="l00926"></a>00926 <span class="preprocessor">#ifndef NETSNMP_DISABLE_DES</span>
<a name="l00927"></a>00927 <span class="preprocessor"></span>    <span class="keywordflow">if</span> (strncmp(cp, <span class="stringliteral">&quot;DES&quot;</span>, 3) == 0) {
<a name="l00928"></a>00928         memcpy(newuser-&gt;privProtocol, usmDESPrivProtocol,
<a name="l00929"></a>00929                <span class="keyword">sizeof</span>(usmDESPrivProtocol));
<a name="l00930"></a>00930         testcase = 1;
<a name="l00931"></a>00931         <span class="comment">/* DES uses a 128 bit key, 64 bits of which is a salt */</span>
<a name="l00932"></a>00932         privKeyLen = 16;
<a name="l00933"></a>00933     }
<a name="l00934"></a>00934 <span class="preprocessor">#endif</span>
<a name="l00935"></a>00935 <span class="preprocessor"></span><span class="preprocessor">#ifdef HAVE_AES</span>
<a name="l00936"></a>00936 <span class="preprocessor"></span>    <span class="keywordflow">if</span> (strncmp(cp, <span class="stringliteral">&quot;AES128&quot;</span>, 6) == 0 ||
<a name="l00937"></a>00937                strncmp(cp, <span class="stringliteral">&quot;AES&quot;</span>, 3) == 0) {
<a name="l00938"></a>00938         memcpy(newuser-&gt;privProtocol, usmAESPrivProtocol,
<a name="l00939"></a>00939                <span class="keyword">sizeof</span>(usmAESPrivProtocol));
<a name="l00940"></a>00940         testcase = 1;
<a name="l00941"></a>00941         privKeyLen = 16;
<a name="l00942"></a>00942     }
<a name="l00943"></a>00943 <span class="preprocessor">#endif</span>
<a name="l00944"></a>00944 <span class="preprocessor"></span>    <span class="keywordflow">if</span> (testcase == 0) {
<a name="l00945"></a>00945         config_perror(<span class="stringliteral">&quot;Unknown privacy protocol&quot;</span>);
<a name="l00946"></a>00946         usm_free_user(newuser);
<a name="l00947"></a>00947         <span class="keywordflow">return</span>;
<a name="l00948"></a>00948     }
<a name="l00949"></a>00949 
<a name="l00950"></a>00950     cp = skip_token(cp);
<a name="l00951"></a>00951     <span class="comment">/*</span>
<a name="l00952"></a>00952 <span class="comment">     * READ: Encryption Pass Phrase or key</span>
<a name="l00953"></a>00953 <span class="comment">     */</span>
<a name="l00954"></a>00954     <span class="keywordflow">if</span> (!cp) {
<a name="l00955"></a>00955         <span class="comment">/*</span>
<a name="l00956"></a>00956 <span class="comment">         * assume the same as the authentication key </span>
<a name="l00957"></a>00957 <span class="comment">         */</span>
<a name="l00958"></a>00958         <a class="code" href="group__util.html#ga623784b8aac0469fcd84e24ccdeda0bd" title="Duplicates a memory block.">memdup</a>(&amp;newuser-&gt;privKey, newuser-&gt;authKey, newuser-&gt;authKeyLen);
<a name="l00959"></a>00959         newuser-&gt;privKeyLen = newuser-&gt;authKeyLen;
<a name="l00960"></a>00960     } <span class="keywordflow">else</span> {
<a name="l00961"></a>00961         cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00962"></a>00962         
<a name="l00963"></a>00963         <span class="keywordflow">if</span> (strcmp(buf,<span class="stringliteral">&quot;-m&quot;</span>) == 0) {
<a name="l00964"></a>00964             <span class="comment">/* a master key is specified */</span>
<a name="l00965"></a>00965             cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l00966"></a>00966             ret = <span class="keyword">sizeof</span>(userKey);
<a name="l00967"></a>00967             tmpp = userKey;
<a name="l00968"></a>00968             userKeyLen = 0;
<a name="l00969"></a>00969             <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>(&amp;tmpp, &amp;ret, &amp;userKeyLen, 0, buf)) {
<a name="l00970"></a>00970                 config_perror(<span class="stringliteral">&quot;invalid key value argument to -m&quot;</span>);
<a name="l00971"></a>00971                 usm_free_user(newuser);
<a name="l00972"></a>00972                 <span class="keywordflow">return</span>;
<a name="l00973"></a>00973             }
<a name="l00974"></a>00974         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(buf,<span class="stringliteral">&quot;-l&quot;</span>) != 0) {
<a name="l00975"></a>00975             <span class="comment">/* a password is specified */</span>
<a name="l00976"></a>00976             userKeyLen = <span class="keyword">sizeof</span>(userKey);
<a name="l00977"></a>00977             ret2 = generate_Ku(newuser-&gt;authProtocol, newuser-&gt;authProtocolLen,
<a name="l00978"></a>00978                               (u_char *) buf, strlen(buf), userKey, &amp;userKeyLen);
<a name="l00979"></a>00979             <span class="keywordflow">if</span> (ret2 != SNMPERR_SUCCESS) {
<a name="l00980"></a>00980                 config_perror(<span class="stringliteral">&quot;could not generate the privacy key from the &quot;</span>
<a name="l00981"></a>00981                               <span class="stringliteral">&quot;supplied pass phrase.&quot;</span>);
<a name="l00982"></a>00982                 usm_free_user(newuser);
<a name="l00983"></a>00983                 <span class="keywordflow">return</span>;
<a name="l00984"></a>00984             }
<a name="l00985"></a>00985         }        
<a name="l00986"></a>00986         
<a name="l00987"></a>00987         <span class="comment">/*</span>
<a name="l00988"></a>00988 <span class="comment">         * And turn it into a localized key </span>
<a name="l00989"></a>00989 <span class="comment">         */</span>
<a name="l00990"></a>00990         ret2 = sc_get_properlength(newuser-&gt;authProtocol,
<a name="l00991"></a>00991                                    newuser-&gt;authProtocolLen);
<a name="l00992"></a>00992         <span class="keywordflow">if</span> (ret2 &lt; 0) {
<a name="l00993"></a>00993             config_perror(<span class="stringliteral">&quot;could not get proper key length to use for the &quot;</span>
<a name="l00994"></a>00994                           <span class="stringliteral">&quot;privacy algorithm.&quot;</span>);
<a name="l00995"></a>00995             usm_free_user(newuser);
<a name="l00996"></a>00996             <span class="keywordflow">return</span>;
<a name="l00997"></a>00997         }
<a name="l00998"></a>00998         newuser-&gt;privKey = (u_char *) malloc(ret2);
<a name="l00999"></a>00999 
<a name="l01000"></a>01000         <span class="keywordflow">if</span> (strcmp(buf,<span class="stringliteral">&quot;-l&quot;</span>) == 0) {
<a name="l01001"></a>01001             <span class="comment">/* a local key is directly specified */</span>
<a name="l01002"></a>01002             cp = copy_nword(cp, buf, <span class="keyword">sizeof</span>(buf));
<a name="l01003"></a>01003             ret = ret2;
<a name="l01004"></a>01004             newuser-&gt;privKeyLen = 0;
<a name="l01005"></a>01005             <span class="keywordflow">if</span> (!<a class="code" href="group__util.html#ga1a102bbccc7a51e7f98b0c1da33497db" title="convert an ASCII hex string to binary">snmp_hex_to_binary</a>(&amp;newuser-&gt;privKey, &amp;ret,
<a name="l01006"></a>01006                                     &amp;newuser-&gt;privKeyLen, 0, buf)) {
<a name="l01007"></a>01007                 config_perror(<span class="stringliteral">&quot;invalid key value argument to -l&quot;</span>);
<a name="l01008"></a>01008                 usm_free_user(newuser);
<a name="l01009"></a>01009                 <span class="keywordflow">return</span>;
<a name="l01010"></a>01010             }
<a name="l01011"></a>01011         } <span class="keywordflow">else</span> {
<a name="l01012"></a>01012             newuser-&gt;privKeyLen = ret2;
<a name="l01013"></a>01013             ret2 = generate_kul(newuser-&gt;authProtocol, newuser-&gt;authProtocolLen,
<a name="l01014"></a>01014                                newuser-&gt;engineID, newuser-&gt;engineIDLen,
<a name="l01015"></a>01015                                userKey, userKeyLen,
<a name="l01016"></a>01016                                newuser-&gt;privKey, &amp;newuser-&gt;privKeyLen);
<a name="l01017"></a>01017             <span class="keywordflow">if</span> (ret2 != SNMPERR_SUCCESS) {
<a name="l01018"></a>01018                 config_perror(<span class="stringliteral">&quot;could not generate localized privacy key &quot;</span>
<a name="l01019"></a>01019                               <span class="stringliteral">&quot;(Kul) from the master key (Ku).&quot;</span>);
<a name="l01020"></a>01020                 usm_free_user(newuser);
<a name="l01021"></a>01021                 <span class="keywordflow">return</span>;
<a name="l01022"></a>01022             }
<a name="l01023"></a>01023         }
<a name="l01024"></a>01024     }
<a name="l01025"></a>01025 
<a name="l01026"></a>01026     <span class="keywordflow">if</span> ((newuser-&gt;privKeyLen &gt;= privKeyLen) || (privKeyLen == 0)){
<a name="l01027"></a>01027       newuser-&gt;privKeyLen = privKeyLen;
<a name="l01028"></a>01028     }
<a name="l01029"></a>01029     <span class="keywordflow">else</span> {
<a name="l01030"></a>01030       <span class="comment">/* The privKey length is smaller than required by privProtocol */</span>
<a name="l01031"></a>01031       usm_free_user(newuser);
<a name="l01032"></a>01032       <span class="keywordflow">return</span>;
<a name="l01033"></a>01033     }
<a name="l01034"></a>01034 
<a name="l01035"></a>01035   add:
<a name="l01036"></a>01036     usm_add_user(newuser);
<a name="l01037"></a>01037     DEBUGMSGTL((<span class="stringliteral">&quot;usmUser&quot;</span>, <span class="stringliteral">&quot;created a new user %s at &quot;</span>, newuser-&gt;secName));
<a name="l01038"></a>01038     DEBUGMSGHEX((<span class="stringliteral">&quot;usmUser&quot;</span>, newuser-&gt;engineID, newuser-&gt;engineIDLen));
<a name="l01039"></a>01039     DEBUGMSG((<span class="stringliteral">&quot;usmUser&quot;</span>, <span class="stringliteral">&quot;\n&quot;</span>));
<a name="l01040"></a>01040 }
<a name="l01041"></a>01041 
<a name="l01042"></a>01042 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01043"></a>01043 <span class="comment"> * engineBoots_conf</span>
<a name="l01044"></a>01044 <span class="comment"> *</span>
<a name="l01045"></a>01045 <span class="comment"> * Parameters:</span>
<a name="l01046"></a>01046 <span class="comment"> *      *word</span>
<a name="l01047"></a>01047 <span class="comment"> *      *cptr</span>
<a name="l01048"></a>01048 <span class="comment"> *</span>
<a name="l01049"></a>01049 <span class="comment"> * Line syntax:</span>
<a name="l01050"></a>01050 <span class="comment"> *      engineBoots &lt;num_boots&gt;</span>
<a name="l01051"></a>01051 <span class="comment"> */</span>
<a name="l01052"></a>01052 <span class="keywordtype">void</span>
<a name="l01053"></a>01053 engineBoots_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l01054"></a>01054 {
<a name="l01055"></a>01055     engineBoots = atoi(cptr) + 1;
<a name="l01056"></a>01056     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;engineBoots: %d\n&quot;</span>, engineBoots));
<a name="l01057"></a>01057 }
<a name="l01058"></a>01058 
<a name="l01059"></a>01059 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01060"></a>01060 <span class="comment"> * engineIDType_conf</span>
<a name="l01061"></a>01061 <span class="comment"> *</span>
<a name="l01062"></a>01062 <span class="comment"> * Parameters:</span>
<a name="l01063"></a>01063 <span class="comment"> *      *word</span>
<a name="l01064"></a>01064 <span class="comment"> *      *cptr</span>
<a name="l01065"></a>01065 <span class="comment"> *</span>
<a name="l01066"></a>01066 <span class="comment"> * Line syntax:</span>
<a name="l01067"></a>01067 <span class="comment"> *      engineIDType &lt;1 or 3&gt;</span>
<a name="l01068"></a>01068 <span class="comment"> *              1 is default for IPv4 engine ID type.  Will automatically</span>
<a name="l01069"></a>01069 <span class="comment"> *                  chose between IPv4 &amp; IPv6 if either 1 or 2 is specified.</span>
<a name="l01070"></a>01070 <span class="comment"> *              2 is for IPv6.</span>
<a name="l01071"></a>01071 <span class="comment"> *              3 is hardware (MAC) address, currently supported under Linux</span>
<a name="l01072"></a>01072 <span class="comment"> */</span>
<a name="l01073"></a>01073 <span class="keywordtype">void</span>
<a name="l01074"></a>01074 engineIDType_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l01075"></a>01075 {
<a name="l01076"></a>01076     engineIDType = atoi(cptr);
<a name="l01077"></a>01077     <span class="comment">/*</span>
<a name="l01078"></a>01078 <span class="comment">     * verify valid type selected </span>
<a name="l01079"></a>01079 <span class="comment">     */</span>
<a name="l01080"></a>01080     <span class="keywordflow">switch</span> (engineIDType) {
<a name="l01081"></a>01081     <span class="keywordflow">case</span> ENGINEID_TYPE_IPV4:   <span class="comment">/* IPv4 */</span>
<a name="l01082"></a>01082     <span class="keywordflow">case</span> ENGINEID_TYPE_IPV6:   <span class="comment">/* IPv6 */</span>
<a name="l01083"></a>01083         <span class="comment">/*</span>
<a name="l01084"></a>01084 <span class="comment">         * IPV? is always good </span>
<a name="l01085"></a>01085 <span class="comment">         */</span>
<a name="l01086"></a>01086         <span class="keywordflow">break</span>;
<a name="l01087"></a>01087 <span class="preprocessor">#if defined(IFHWADDRLEN) &amp;&amp; defined(SIOCGIFHWADDR)</span>
<a name="l01088"></a>01088 <span class="preprocessor"></span>    <span class="keywordflow">case</span> ENGINEID_TYPE_MACADDR:        <span class="comment">/* MAC address */</span>
<a name="l01089"></a>01089         <span class="keywordflow">break</span>;
<a name="l01090"></a>01090 <span class="preprocessor">#endif</span>
<a name="l01091"></a>01091 <span class="preprocessor"></span>    <span class="keywordflow">default</span>:
<a name="l01092"></a>01092         <span class="comment">/*</span>
<a name="l01093"></a>01093 <span class="comment">         * unsupported one chosen </span>
<a name="l01094"></a>01094 <span class="comment">         */</span>
<a name="l01095"></a>01095         config_perror(<span class="stringliteral">&quot;Unsupported enginedIDType, forcing IPv4&quot;</span>);
<a name="l01096"></a>01096         engineIDType = ENGINEID_TYPE_IPV4;
<a name="l01097"></a>01097     }
<a name="l01098"></a>01098     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;engineIDType: %d\n&quot;</span>, engineIDType));
<a name="l01099"></a>01099 }
<a name="l01100"></a>01100 
<a name="l01101"></a>01101 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01102"></a>01102 <span class="comment"> * engineIDNic_conf</span>
<a name="l01103"></a>01103 <span class="comment"> *</span>
<a name="l01104"></a>01104 <span class="comment"> * Parameters:</span>
<a name="l01105"></a>01105 <span class="comment"> *      *word</span>
<a name="l01106"></a>01106 <span class="comment"> *      *cptr</span>
<a name="l01107"></a>01107 <span class="comment"> *</span>
<a name="l01108"></a>01108 <span class="comment"> * Line syntax:</span>
<a name="l01109"></a>01109 <span class="comment"> *      engineIDNic &lt;string&gt;</span>
<a name="l01110"></a>01110 <span class="comment"> *              eth0 is default</span>
<a name="l01111"></a>01111 <span class="comment"> */</span>
<a name="l01112"></a>01112 <span class="keywordtype">void</span>
<a name="l01113"></a>01113 engineIDNic_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l01114"></a>01114 {
<a name="l01115"></a>01115     <span class="comment">/*</span>
<a name="l01116"></a>01116 <span class="comment">     * Make sure they haven&#39;t already specified the engineID via the</span>
<a name="l01117"></a>01117 <span class="comment">     * * configuration file </span>
<a name="l01118"></a>01118 <span class="comment">     */</span>
<a name="l01119"></a>01119     <span class="keywordflow">if</span> (0 == engineIDIsSet)
<a name="l01120"></a>01120         <span class="comment">/*</span>
<a name="l01121"></a>01121 <span class="comment">         * engineID has NOT been set via configuration file </span>
<a name="l01122"></a>01122 <span class="comment">         */</span>
<a name="l01123"></a>01123     {
<a name="l01124"></a>01124         <span class="comment">/*</span>
<a name="l01125"></a>01125 <span class="comment">         * See if already set if so erase &amp; release it </span>
<a name="l01126"></a>01126 <span class="comment">         */</span>
<a name="l01127"></a>01127         <span class="keywordflow">if</span> (NULL != engineIDNic) {
<a name="l01128"></a>01128             <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(engineIDNic);
<a name="l01129"></a>01129         }
<a name="l01130"></a>01130         engineIDNic = (u_char *) malloc(strlen(cptr) + 1);
<a name="l01131"></a>01131         <span class="keywordflow">if</span> (NULL != engineIDNic) {
<a name="l01132"></a>01132             strcpy((<span class="keywordtype">char</span> *) engineIDNic, cptr);
<a name="l01133"></a>01133             DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;Initializing engineIDNic: %s\n&quot;</span>,
<a name="l01134"></a>01134                         engineIDNic));
<a name="l01135"></a>01135         } <span class="keywordflow">else</span> {
<a name="l01136"></a>01136             DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>,
<a name="l01137"></a>01137                         <span class="stringliteral">&quot;Error allocating memory for engineIDNic!\n&quot;</span>));
<a name="l01138"></a>01138         }
<a name="l01139"></a>01139     } <span class="keywordflow">else</span> {
<a name="l01140"></a>01140         DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>,
<a name="l01141"></a>01141                     <span class="stringliteral">&quot;NOT setting engineIDNic, engineID already set\n&quot;</span>));
<a name="l01142"></a>01142     }
<a name="l01143"></a>01143 }
<a name="l01144"></a>01144 
<a name="l01145"></a>01145 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01146"></a>01146 <span class="comment"> * engineID_conf</span>
<a name="l01147"></a>01147 <span class="comment"> *</span>
<a name="l01148"></a>01148 <span class="comment"> * Parameters:</span>
<a name="l01149"></a>01149 <span class="comment"> *      *word</span>
<a name="l01150"></a>01150 <span class="comment"> *      *cptr</span>
<a name="l01151"></a>01151 <span class="comment"> *</span>
<a name="l01152"></a>01152 <span class="comment"> * This function reads a string from the configuration file and uses that</span>
<a name="l01153"></a>01153 <span class="comment"> * string to initialize the engineID.  It&#39;s assumed to be human readable.</span>
<a name="l01154"></a>01154 <span class="comment"> */</span>
<a name="l01155"></a>01155 <span class="keywordtype">void</span>
<a name="l01156"></a>01156 engineID_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l01157"></a>01157 {
<a name="l01158"></a>01158     setup_engineID(NULL, cptr);
<a name="l01159"></a>01159     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;initialized engineID with: %s\n&quot;</span>, cptr));
<a name="l01160"></a>01160 }
<a name="l01161"></a>01161 
<a name="l01162"></a>01162 <span class="keywordtype">void</span>
<a name="l01163"></a>01163 version_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l01164"></a>01164 {
<a name="l01165"></a>01165     <span class="keywordtype">int</span> valid = 0;
<a name="l01166"></a>01166 <span class="preprocessor">#ifndef NETSNMP_DISABLE_SNMPV1</span>
<a name="l01167"></a>01167 <span class="preprocessor"></span>    <span class="keywordflow">if</span> ((strcmp(cptr,  <span class="stringliteral">&quot;1&quot;</span>) == 0) ||
<a name="l01168"></a>01168         (strcmp(cptr, <span class="stringliteral">&quot;v1&quot;</span>) == 0)) {
<a name="l01169"></a>01169         netsnmp_ds_set_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_SNMPVERSION, 
<a name="l01170"></a>01170                            NETSNMP_DS_SNMP_VERSION_1);       <span class="comment">/* bogus value */</span>
<a name="l01171"></a>01171         valid = 1;
<a name="l01172"></a>01172     }
<a name="l01173"></a>01173 <span class="preprocessor">#endif</span>
<a name="l01174"></a>01174 <span class="preprocessor"></span><span class="preprocessor">#ifndef NETSNMP_DISABLE_SNMPV2C</span>
<a name="l01175"></a>01175 <span class="preprocessor"></span>    <span class="keywordflow">if</span> ((strcasecmp(cptr,  <span class="stringliteral">&quot;2c&quot;</span>) == 0) ||
<a name="l01176"></a>01176                (strcasecmp(cptr, <span class="stringliteral">&quot;v2c&quot;</span>) == 0)) {
<a name="l01177"></a>01177         netsnmp_ds_set_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_SNMPVERSION, 
<a name="l01178"></a>01178                            NETSNMP_DS_SNMP_VERSION_2c);
<a name="l01179"></a>01179         valid = 1;
<a name="l01180"></a>01180     }
<a name="l01181"></a>01181 <span class="preprocessor">#endif</span>
<a name="l01182"></a>01182 <span class="preprocessor"></span>    <span class="keywordflow">if</span> ((strcasecmp(cptr,  <span class="stringliteral">&quot;3&quot;</span> ) == 0) ||
<a name="l01183"></a>01183                (strcasecmp(cptr, <span class="stringliteral">&quot;v3&quot;</span> ) == 0)) {
<a name="l01184"></a>01184         netsnmp_ds_set_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_SNMPVERSION, 
<a name="l01185"></a>01185                            NETSNMP_DS_SNMP_VERSION_3);
<a name="l01186"></a>01186         valid = 1;
<a name="l01187"></a>01187     }
<a name="l01188"></a>01188     <span class="keywordflow">if</span> (!valid) {
<a name="l01189"></a>01189         config_perror(<span class="stringliteral">&quot;Unknown version specification&quot;</span>);
<a name="l01190"></a>01190         <span class="keywordflow">return</span>;
<a name="l01191"></a>01191     }
<a name="l01192"></a>01192     DEBUGMSGTL((<span class="stringliteral">&quot;snmpv3&quot;</span>, <span class="stringliteral">&quot;set default version to %d\n&quot;</span>,
<a name="l01193"></a>01193                 netsnmp_ds_get_int(NETSNMP_DS_LIBRARY_ID, 
<a name="l01194"></a>01194                                    NETSNMP_DS_LIB_SNMPVERSION)));
<a name="l01195"></a>01195 }
<a name="l01196"></a>01196 
<a name="l01197"></a>01197 <span class="comment">/*</span>
<a name="l01198"></a>01198 <span class="comment"> * engineID_old_conf(const char *, char *):</span>
<a name="l01199"></a>01199 <span class="comment"> * </span>
<a name="l01200"></a>01200 <span class="comment"> * Reads a octet string encoded engineID into the oldEngineID and</span>
<a name="l01201"></a>01201 <span class="comment"> * oldEngineIDLen pointers.</span>
<a name="l01202"></a>01202 <span class="comment"> */</span>
<a name="l01203"></a>01203 <span class="keywordtype">void</span>
<a name="l01204"></a>01204 oldengineID_conf(<span class="keyword">const</span> <span class="keywordtype">char</span> *word, <span class="keywordtype">char</span> *cptr)
<a name="l01205"></a>01205 {
<a name="l01206"></a>01206     read_config_read_octet_string(cptr, &amp;oldEngineID, &amp;oldEngineIDLength);
<a name="l01207"></a>01207 }
<a name="l01208"></a>01208 
<a name="l01209"></a>01209 <span class="comment">/*</span>
<a name="l01210"></a>01210 <span class="comment"> * merely call </span>
<a name="l01211"></a>01211 <span class="comment"> */</span>
<a name="l01212"></a>01212 <span class="keywordtype">void</span>
<a name="l01213"></a>01213 get_enginetime_alarm(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> regnum, <span class="keywordtype">void</span> *clientargs)
<a name="l01214"></a>01214 {
<a name="l01215"></a>01215     <span class="comment">/* we do this every so (rarely) often just to make sure we watch</span>
<a name="l01216"></a>01216 <span class="comment">       wrapping of the times() output */</span>
<a name="l01217"></a>01217     snmpv3_local_snmpEngineTime();
<a name="l01218"></a>01218 }
<a name="l01219"></a>01219 
<a name="l01220"></a>01220 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01221"></a>01221 <span class="comment"> * init_snmpv3</span>
<a name="l01222"></a>01222 <span class="comment"> *</span>
<a name="l01223"></a>01223 <span class="comment"> * Parameters:</span>
<a name="l01224"></a>01224 <span class="comment"> *      *type   Label for the config file &quot;type&quot; used by calling entity.</span>
<a name="l01225"></a>01225 <span class="comment"> *      </span>
<a name="l01226"></a>01226 <span class="comment"> * Set time and engineID.</span>
<a name="l01227"></a>01227 <span class="comment"> * Set parsing functions for config file tokens.</span>
<a name="l01228"></a>01228 <span class="comment"> * Initialize SNMP Crypto API (SCAPI).</span>
<a name="l01229"></a>01229 <span class="comment"> */</span>
<a name="l01230"></a>01230 <span class="keywordtype">void</span>
<a name="l01231"></a>01231 init_snmpv3(<span class="keyword">const</span> <span class="keywordtype">char</span> *type)
<a name="l01232"></a>01232 {
<a name="l01233"></a>01233 <span class="preprocessor">#if SNMP_USE_TIMES</span>
<a name="l01234"></a>01234 <span class="preprocessor"></span>  <span class="keyword">struct </span>tms dummy;
<a name="l01235"></a>01235 
<a name="l01236"></a>01236   <span class="comment">/* fixme: -1 is fault code... */</span>
<a name="l01237"></a>01237   snmpv3startClock = times(&amp;dummy);
<a name="l01238"></a>01238 
<a name="l01239"></a>01239   <span class="comment">/* remember how many ticks per second there are, since times() returns this */</span>
<a name="l01240"></a>01240 
<a name="l01241"></a>01241   clockticks = sysconf(_SC_CLK_TCK);
<a name="l01242"></a>01242 
<a name="l01243"></a>01243 <span class="preprocessor">#endif </span><span class="comment">/* SNMP_USE_TIMES */</span>
<a name="l01244"></a>01244 
<a name="l01245"></a>01245     gettimeofday(&amp;snmpv3starttime, NULL);
<a name="l01246"></a>01246 
<a name="l01247"></a>01247     <span class="keywordflow">if</span> (!type)
<a name="l01248"></a>01248         type = <span class="stringliteral">&quot;__snmpapp__&quot;</span>;
<a name="l01249"></a>01249 
<a name="l01250"></a>01250     <span class="comment">/*</span>
<a name="l01251"></a>01251 <span class="comment">     * we need to be called back later </span>
<a name="l01252"></a>01252 <span class="comment">     */</span>
<a name="l01253"></a>01253     <a class="code" href="group__callback.html#gaa74bcb0ea6a8b7270f5e26746ba1fff1" title="This function registers a generic callback function.">snmp_register_callback</a>(SNMP_CALLBACK_LIBRARY,
<a name="l01254"></a>01254                            SNMP_CALLBACK_POST_READ_CONFIG,
<a name="l01255"></a>01255                            init_snmpv3_post_config, NULL);
<a name="l01256"></a>01256 
<a name="l01257"></a>01257     <a class="code" href="group__callback.html#gaa74bcb0ea6a8b7270f5e26746ba1fff1" title="This function registers a generic callback function.">snmp_register_callback</a>(SNMP_CALLBACK_LIBRARY,
<a name="l01258"></a>01258                            SNMP_CALLBACK_POST_PREMIB_READ_CONFIG,
<a name="l01259"></a>01259                            init_snmpv3_post_premib_config, NULL);
<a name="l01260"></a>01260     <span class="comment">/*</span>
<a name="l01261"></a>01261 <span class="comment">     * we need to be called back later </span>
<a name="l01262"></a>01262 <span class="comment">     */</span>
<a name="l01263"></a>01263     <a class="code" href="group__callback.html#gaa74bcb0ea6a8b7270f5e26746ba1fff1" title="This function registers a generic callback function.">snmp_register_callback</a>(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
<a name="l01264"></a>01264                            snmpv3_store, (<span class="keywordtype">void</span> *) strdup(type));
<a name="l01265"></a>01265 
<a name="l01266"></a>01266     <span class="comment">/*</span>
<a name="l01267"></a>01267 <span class="comment">     * Free stuff at shutdown time</span>
<a name="l01268"></a>01268 <span class="comment">     */</span>
<a name="l01269"></a>01269     <a class="code" href="group__callback.html#gaa74bcb0ea6a8b7270f5e26746ba1fff1" title="This function registers a generic callback function.">snmp_register_callback</a>(SNMP_CALLBACK_LIBRARY,
<a name="l01270"></a>01270                            SNMP_CALLBACK_SHUTDOWN,
<a name="l01271"></a>01271                            free_enginetime_on_shutdown, NULL);
<a name="l01272"></a>01272 
<a name="l01273"></a>01273     <span class="comment">/*</span>
<a name="l01274"></a>01274 <span class="comment">     * initialize submodules </span>
<a name="l01275"></a>01275 <span class="comment">     */</span>
<a name="l01276"></a>01276     <span class="comment">/*</span>
<a name="l01277"></a>01277 <span class="comment">     * NOTE: this must be after the callbacks are registered above,</span>
<a name="l01278"></a>01278 <span class="comment">     * since they need to be called before the USM callbacks. </span>
<a name="l01279"></a>01279 <span class="comment">     */</span>
<a name="l01280"></a>01280     init_secmod();
<a name="l01281"></a>01281 
<a name="l01282"></a>01282     <span class="comment">/*</span>
<a name="l01283"></a>01283 <span class="comment">     * register all our configuration handlers (ack, there&#39;s a lot) </span>
<a name="l01284"></a>01284 <span class="comment">     */</span>
<a name="l01285"></a>01285 
<a name="l01286"></a>01286     <span class="comment">/*</span>
<a name="l01287"></a>01287 <span class="comment">     * handle engineID setup before everything else which may depend on it </span>
<a name="l01288"></a>01288 <span class="comment">     */</span>
<a name="l01289"></a>01289     register_prenetsnmp_mib_handler(type, <span class="stringliteral">&quot;engineID&quot;</span>, engineID_conf, NULL,
<a name="l01290"></a>01290                                     <span class="stringliteral">&quot;string&quot;</span>);
<a name="l01291"></a>01291     register_prenetsnmp_mib_handler(type, <span class="stringliteral">&quot;oldEngineID&quot;</span>, oldengineID_conf,
<a name="l01292"></a>01292                                     NULL, NULL);
<a name="l01293"></a>01293     register_prenetsnmp_mib_handler(type, <span class="stringliteral">&quot;engineIDType&quot;</span>,
<a name="l01294"></a>01294                                     engineIDType_conf, NULL, <span class="stringliteral">&quot;num&quot;</span>);
<a name="l01295"></a>01295     register_prenetsnmp_mib_handler(type, <span class="stringliteral">&quot;engineIDNic&quot;</span>, engineIDNic_conf,
<a name="l01296"></a>01296                                     NULL, <span class="stringliteral">&quot;string&quot;</span>);
<a name="l01297"></a>01297     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(type, <span class="stringliteral">&quot;engineBoots&quot;</span>, engineBoots_conf, NULL,
<a name="l01298"></a>01298                             NULL);
<a name="l01299"></a>01299 
<a name="l01300"></a>01300     <span class="comment">/*</span>
<a name="l01301"></a>01301 <span class="comment">     * default store config entries </span>
<a name="l01302"></a>01302 <span class="comment">     */</span>
<a name="l01303"></a>01303     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defSecurityName&quot;</span>,
<a name="l01304"></a>01304                                NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_SECNAME);
<a name="l01305"></a>01305     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defContext&quot;</span>, 
<a name="l01306"></a>01306                                NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_CONTEXT);
<a name="l01307"></a>01307     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defPassphrase&quot;</span>,
<a name="l01308"></a>01308                                NETSNMP_DS_LIBRARY_ID,
<a name="l01309"></a>01309                                NETSNMP_DS_LIB_PASSPHRASE);
<a name="l01310"></a>01310     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defAuthPassphrase&quot;</span>,
<a name="l01311"></a>01311                                NETSNMP_DS_LIBRARY_ID,
<a name="l01312"></a>01312                                NETSNMP_DS_LIB_AUTHPASSPHRASE);
<a name="l01313"></a>01313     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defPrivPassphrase&quot;</span>,
<a name="l01314"></a>01314                                NETSNMP_DS_LIBRARY_ID,
<a name="l01315"></a>01315                                NETSNMP_DS_LIB_PRIVPASSPHRASE);
<a name="l01316"></a>01316     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defAuthMasterKey&quot;</span>,
<a name="l01317"></a>01317                                NETSNMP_DS_LIBRARY_ID,
<a name="l01318"></a>01318                                NETSNMP_DS_LIB_AUTHMASTERKEY);
<a name="l01319"></a>01319     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defPrivMasterKey&quot;</span>,
<a name="l01320"></a>01320                                NETSNMP_DS_LIBRARY_ID,
<a name="l01321"></a>01321                                NETSNMP_DS_LIB_PRIVMASTERKEY);
<a name="l01322"></a>01322     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defAuthLocalizedKey&quot;</span>,
<a name="l01323"></a>01323                                NETSNMP_DS_LIBRARY_ID,
<a name="l01324"></a>01324                                NETSNMP_DS_LIB_AUTHLOCALIZEDKEY);
<a name="l01325"></a>01325     netsnmp_ds_register_config(ASN_OCTET_STR, <span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defPrivLocalizedKey&quot;</span>,
<a name="l01326"></a>01326                                NETSNMP_DS_LIBRARY_ID,
<a name="l01327"></a>01327                                NETSNMP_DS_LIB_PRIVLOCALIZEDKEY);
<a name="l01328"></a>01328     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(<span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defVersion&quot;</span>, version_conf, NULL,
<a name="l01329"></a>01329                             <span class="stringliteral">&quot;1|2c|3&quot;</span>);
<a name="l01330"></a>01330 
<a name="l01331"></a>01331     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(<span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defAuthType&quot;</span>, snmpv3_authtype_conf,
<a name="l01332"></a>01332                             NULL, <span class="stringliteral">&quot;MD5|SHA&quot;</span>);
<a name="l01333"></a>01333     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(<span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defPrivType&quot;</span>, snmpv3_privtype_conf,
<a name="l01334"></a>01334                             NULL,
<a name="l01335"></a>01335 #ifdef HAVE_AES
<a name="l01336"></a>01336                             <span class="stringliteral">&quot;DES|AES&quot;</span>);
<a name="l01337"></a>01337 <span class="preprocessor">#else</span>
<a name="l01338"></a>01338 <span class="preprocessor"></span>                            <span class="stringliteral">&quot;DES (AES support not available)&quot;</span>);
<a name="l01339"></a>01339 <span class="preprocessor">#endif</span>
<a name="l01340"></a>01340 <span class="preprocessor"></span>    <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(<span class="stringliteral">&quot;snmp&quot;</span>, <span class="stringliteral">&quot;defSecurityLevel&quot;</span>,
<a name="l01341"></a>01341                             snmpv3_secLevel_conf, NULL,
<a name="l01342"></a>01342                             <span class="stringliteral">&quot;noAuthNoPriv|authNoPriv|authPriv&quot;</span>);
<a name="l01343"></a>01343     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(type, <span class="stringliteral">&quot;userSetAuthPass&quot;</span>, usm_set_password,
<a name="l01344"></a>01344                             NULL, NULL);
<a name="l01345"></a>01345     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(type, <span class="stringliteral">&quot;userSetPrivPass&quot;</span>, usm_set_password,
<a name="l01346"></a>01346                             NULL, NULL);
<a name="l01347"></a>01347     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(type, <span class="stringliteral">&quot;userSetAuthKey&quot;</span>, usm_set_password, NULL,
<a name="l01348"></a>01348                             NULL);
<a name="l01349"></a>01349     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(type, <span class="stringliteral">&quot;userSetPrivKey&quot;</span>, usm_set_password, NULL,
<a name="l01350"></a>01350                             NULL);
<a name="l01351"></a>01351     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(type, <span class="stringliteral">&quot;userSetAuthLocalKey&quot;</span>, usm_set_password,
<a name="l01352"></a>01352                             NULL, NULL);
<a name="l01353"></a>01353     <a class="code" href="group__read__config.html#ga9a3e481d8eb7d3ef08efa25b9a186c3b" title="register_config_handler registers handlers for certain tokens specified in certain types of files...">register_config_handler</a>(type, <span class="stringliteral">&quot;userSetPrivLocalKey&quot;</span>, usm_set_password,
<a name="l01354"></a>01354                             NULL, NULL);
<a name="l01355"></a>01355 }
<a name="l01356"></a>01356 
<a name="l01357"></a>01357 <span class="comment">/*</span>
<a name="l01358"></a>01358 <span class="comment"> * initializations for SNMPv3 to be called after the configuration files</span>
<a name="l01359"></a>01359 <span class="comment"> * have been read.</span>
<a name="l01360"></a>01360 <span class="comment"> */</span>
<a name="l01361"></a>01361 
<a name="l01362"></a>01362 <span class="keywordtype">int</span>
<a name="l01363"></a>01363 init_snmpv3_post_config(<span class="keywordtype">int</span> majorid, <span class="keywordtype">int</span> minorid, <span class="keywordtype">void</span> *serverarg,
<a name="l01364"></a>01364                         <span class="keywordtype">void</span> *clientarg)
<a name="l01365"></a>01365 {
<a name="l01366"></a>01366 
<a name="l01367"></a>01367     <span class="keywordtype">size_t</span>          engineIDLen;
<a name="l01368"></a>01368     u_char         *c_engineID;
<a name="l01369"></a>01369 
<a name="l01370"></a>01370     c_engineID = snmpv3_generate_engineID(&amp;engineIDLen);
<a name="l01371"></a>01371 
<a name="l01372"></a>01372     <span class="keywordflow">if</span> (engineIDLen == 0 || !c_engineID) {
<a name="l01373"></a>01373         <span class="comment">/*</span>
<a name="l01374"></a>01374 <span class="comment">         * Somethine went wrong - help! </span>
<a name="l01375"></a>01375 <span class="comment">         */</span>
<a name="l01376"></a>01376         <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(c_engineID);
<a name="l01377"></a>01377         <span class="keywordflow">return</span> SNMPERR_GENERR;
<a name="l01378"></a>01378     }
<a name="l01379"></a>01379 
<a name="l01380"></a>01380     <span class="comment">/*</span>
<a name="l01381"></a>01381 <span class="comment">     * if our engineID has changed at all, the boots record must be set to 1 </span>
<a name="l01382"></a>01382 <span class="comment">     */</span>
<a name="l01383"></a>01383     <span class="keywordflow">if</span> (engineIDLen != (<span class="keywordtype">int</span>) oldEngineIDLength ||
<a name="l01384"></a>01384         oldEngineID == NULL || c_engineID == NULL ||
<a name="l01385"></a>01385         memcmp(oldEngineID, c_engineID, engineIDLen) != 0) {
<a name="l01386"></a>01386         engineBoots = 1;
<a name="l01387"></a>01387     }
<a name="l01388"></a>01388 
<a name="l01389"></a>01389     <span class="comment">/*</span>
<a name="l01390"></a>01390 <span class="comment">     * set our local engineTime in the LCD timing cache </span>
<a name="l01391"></a>01391 <span class="comment">     */</span>
<a name="l01392"></a>01392     set_enginetime(c_engineID, engineIDLen,
<a name="l01393"></a>01393                    snmpv3_local_snmpEngineBoots(),
<a name="l01394"></a>01394                    snmpv3_local_snmpEngineTime(), TRUE);
<a name="l01395"></a>01395 
<a name="l01396"></a>01396     <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(c_engineID);
<a name="l01397"></a>01397     <span class="keywordflow">return</span> SNMPERR_SUCCESS;
<a name="l01398"></a>01398 }
<a name="l01399"></a>01399 
<a name="l01400"></a>01400 <span class="keywordtype">int</span>
<a name="l01401"></a>01401 init_snmpv3_post_premib_config(<span class="keywordtype">int</span> majorid, <span class="keywordtype">int</span> minorid, <span class="keywordtype">void</span> *serverarg,
<a name="l01402"></a>01402                                <span class="keywordtype">void</span> *clientarg)
<a name="l01403"></a>01403 {
<a name="l01404"></a>01404     <span class="keywordflow">if</span> (!engineIDIsSet)
<a name="l01405"></a>01405         setup_engineID(NULL, NULL);
<a name="l01406"></a>01406 
<a name="l01407"></a>01407     <span class="keywordflow">return</span> SNMPERR_SUCCESS;
<a name="l01408"></a>01408 }
<a name="l01409"></a>01409 
<a name="l01410"></a>01410 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01411"></a>01411 <span class="comment"> * store_snmpv3</span>
<a name="l01412"></a>01412 <span class="comment"> *</span>
<a name="l01413"></a>01413 <span class="comment"> * Parameters:</span>
<a name="l01414"></a>01414 <span class="comment"> *      *type</span>
<a name="l01415"></a>01415 <span class="comment"> */</span>
<a name="l01416"></a>01416 <span class="keywordtype">int</span>
<a name="l01417"></a>01417 snmpv3_store(<span class="keywordtype">int</span> majorID, <span class="keywordtype">int</span> minorID, <span class="keywordtype">void</span> *serverarg, <span class="keywordtype">void</span> *clientarg)
<a name="l01418"></a>01418 {
<a name="l01419"></a>01419     <span class="keywordtype">char</span>            line[SNMP_MAXBUF_SMALL];
<a name="l01420"></a>01420     u_char          c_engineID[SNMP_MAXBUF_SMALL];
<a name="l01421"></a>01421     <span class="keywordtype">int</span>             engineIDLen;
<a name="l01422"></a>01422     <span class="keyword">const</span> <span class="keywordtype">char</span>     *type = (<span class="keyword">const</span> <span class="keywordtype">char</span> *) clientarg;
<a name="l01423"></a>01423 
<a name="l01424"></a>01424     <span class="keywordflow">if</span> (type == NULL)           <span class="comment">/* should never happen, since the arg is ours */</span>
<a name="l01425"></a>01425         type = <span class="stringliteral">&quot;unknown&quot;</span>;
<a name="l01426"></a>01426 
<a name="l01427"></a>01427     sprintf(line, <span class="stringliteral">&quot;engineBoots %ld&quot;</span>, engineBoots);
<a name="l01428"></a>01428     <a class="code" href="group__read__config.html#gae3adadf24d35a919f4b7a603e47583df" title="read_config_store intended for use by applications to store permenant configuration information gener...">read_config_store</a>(type, line);
<a name="l01429"></a>01429 
<a name="l01430"></a>01430     engineIDLen = snmpv3_get_engineID(c_engineID, SNMP_MAXBUF_SMALL);
<a name="l01431"></a>01431 
<a name="l01432"></a>01432     <span class="keywordflow">if</span> (engineIDLen) {
<a name="l01433"></a>01433         <span class="comment">/*</span>
<a name="l01434"></a>01434 <span class="comment">         * store the engineID used for this run </span>
<a name="l01435"></a>01435 <span class="comment">         */</span>
<a name="l01436"></a>01436         sprintf(line, <span class="stringliteral">&quot;oldEngineID &quot;</span>);
<a name="l01437"></a>01437         read_config_save_octet_string(line + strlen(line), c_engineID,
<a name="l01438"></a>01438                                       engineIDLen);
<a name="l01439"></a>01439         <a class="code" href="group__read__config.html#gae3adadf24d35a919f4b7a603e47583df" title="read_config_store intended for use by applications to store permenant configuration information gener...">read_config_store</a>(type, line);
<a name="l01440"></a>01440     }
<a name="l01441"></a>01441     <span class="keywordflow">return</span> SNMPERR_SUCCESS;
<a name="l01442"></a>01442 }                               <span class="comment">/* snmpv3_store() */</span>
<a name="l01443"></a>01443 
<a name="l01444"></a>01444 u_long
<a name="l01445"></a>01445 snmpv3_local_snmpEngineBoots(<span class="keywordtype">void</span>)
<a name="l01446"></a>01446 {
<a name="l01447"></a>01447     <span class="keywordflow">return</span> engineBoots;
<a name="l01448"></a>01448 }
<a name="l01449"></a>01449 
<a name="l01450"></a>01450 
<a name="l01451"></a>01451 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01452"></a>01452 <span class="comment"> * snmpv3_get_engineID</span>
<a name="l01453"></a>01453 <span class="comment"> *</span>
<a name="l01454"></a>01454 <span class="comment"> * Parameters:</span>
<a name="l01455"></a>01455 <span class="comment"> *      *buf</span>
<a name="l01456"></a>01456 <span class="comment"> *       buflen</span>
<a name="l01457"></a>01457 <span class="comment"> *      </span>
<a name="l01458"></a>01458 <span class="comment"> * Returns:</span>
<a name="l01459"></a>01459 <span class="comment"> *      Length of engineID      On Success</span>
<a name="l01460"></a>01460 <span class="comment"> *      SNMPERR_GENERR          Otherwise.</span>
<a name="l01461"></a>01461 <span class="comment"> *</span>
<a name="l01462"></a>01462 <span class="comment"> *</span>
<a name="l01463"></a>01463 <span class="comment"> * Store engineID in buf; return the length.</span>
<a name="l01464"></a>01464 <span class="comment"> *</span>
<a name="l01465"></a>01465 <span class="comment"> */</span>
<a name="l01466"></a>01466 <span class="keywordtype">size_t</span>
<a name="l01467"></a>01467 snmpv3_get_engineID(u_char * buf, <span class="keywordtype">size_t</span> buflen)
<a name="l01468"></a>01468 {
<a name="l01469"></a>01469     <span class="comment">/*</span>
<a name="l01470"></a>01470 <span class="comment">     * Sanity check.</span>
<a name="l01471"></a>01471 <span class="comment">     */</span>
<a name="l01472"></a>01472     <span class="keywordflow">if</span> (!buf || (buflen &lt; engineIDLength)) {
<a name="l01473"></a>01473         <span class="keywordflow">return</span> 0;
<a name="l01474"></a>01474     }
<a name="l01475"></a>01475 
<a name="l01476"></a>01476     memcpy(buf, engineID, engineIDLength);
<a name="l01477"></a>01477     <span class="keywordflow">return</span> engineIDLength;
<a name="l01478"></a>01478 
<a name="l01479"></a>01479 }                               <span class="comment">/* end snmpv3_get_engineID() */</span>
<a name="l01480"></a>01480 
<a name="l01481"></a>01481 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01482"></a>01482 <span class="comment"> * snmpv3_clone_engineID</span>
<a name="l01483"></a>01483 <span class="comment"> *</span>
<a name="l01484"></a>01484 <span class="comment"> * Parameters:</span>
<a name="l01485"></a>01485 <span class="comment"> *      **dest</span>
<a name="l01486"></a>01486 <span class="comment"> *       *dest_len</span>
<a name="l01487"></a>01487 <span class="comment"> *       src</span>
<a name="l01488"></a>01488 <span class="comment"> *       srclen</span>
<a name="l01489"></a>01489 <span class="comment"> *      </span>
<a name="l01490"></a>01490 <span class="comment"> * Returns:</span>
<a name="l01491"></a>01491 <span class="comment"> *      Length of engineID      On Success</span>
<a name="l01492"></a>01492 <span class="comment"> *      0                       Otherwise.</span>
<a name="l01493"></a>01493 <span class="comment"> *</span>
<a name="l01494"></a>01494 <span class="comment"> *</span>
<a name="l01495"></a>01495 <span class="comment"> * Clones engineID, creates memory</span>
<a name="l01496"></a>01496 <span class="comment"> *</span>
<a name="l01497"></a>01497 <span class="comment"> */</span>
<a name="l01498"></a>01498 <span class="keywordtype">int</span>
<a name="l01499"></a>01499 snmpv3_clone_engineID(u_char ** dest, <span class="keywordtype">size_t</span> * destlen, u_char * src,
<a name="l01500"></a>01500                       <span class="keywordtype">size_t</span> srclen)
<a name="l01501"></a>01501 {
<a name="l01502"></a>01502     <span class="keywordflow">if</span> (!dest || !destlen)
<a name="l01503"></a>01503         <span class="keywordflow">return</span> 0;
<a name="l01504"></a>01504 
<a name="l01505"></a>01505     <span class="keywordflow">if</span> (*dest) {
<a name="l01506"></a>01506         <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(*dest);
<a name="l01507"></a>01507         *dest = NULL;
<a name="l01508"></a>01508     }
<a name="l01509"></a>01509     *destlen = 0;
<a name="l01510"></a>01510 
<a name="l01511"></a>01511     <span class="keywordflow">if</span> (srclen &amp;&amp; src) {
<a name="l01512"></a>01512         *dest = (u_char *) malloc(srclen);
<a name="l01513"></a>01513         <span class="keywordflow">if</span> (*dest == NULL)
<a name="l01514"></a>01514             <span class="keywordflow">return</span> 0;
<a name="l01515"></a>01515         memmove(*dest, src, srclen);
<a name="l01516"></a>01516         *destlen = srclen;
<a name="l01517"></a>01517     }
<a name="l01518"></a>01518     <span class="keywordflow">return</span> *destlen;
<a name="l01519"></a>01519 }                               <span class="comment">/* end snmpv3_clone_engineID() */</span>
<a name="l01520"></a>01520 
<a name="l01521"></a>01521 
<a name="l01522"></a>01522 <span class="comment">/*******************************************************************-o-******</span>
<a name="l01523"></a>01523 <span class="comment"> * snmpv3_generate_engineID</span>
<a name="l01524"></a>01524 <span class="comment"> *</span>
<a name="l01525"></a>01525 <span class="comment"> * Parameters:</span>
<a name="l01526"></a>01526 <span class="comment"> *      *length</span>
<a name="l01527"></a>01527 <span class="comment"> *      </span>
<a name="l01528"></a>01528 <span class="comment"> * Returns:</span>
<a name="l01529"></a>01529 <span class="comment"> *      Pointer to copy of engineID     On Success.</span>
<a name="l01530"></a>01530 <span class="comment"> *      NULL                            If malloc() or snmpv3_get_engineID()</span>
<a name="l01531"></a>01531 <span class="comment"> *                                              fail.</span>
<a name="l01532"></a>01532 <span class="comment"> *</span>
<a name="l01533"></a>01533 <span class="comment"> * Generates a malloced copy of our engineID.</span>
<a name="l01534"></a>01534 <span class="comment"> *</span>
<a name="l01535"></a>01535 <span class="comment"> * &#39;length&#39; is set to the length of engineID  -OR-  &lt; 0 on failure.</span>
<a name="l01536"></a>01536 <span class="comment"> */</span>
<a name="l01537"></a>01537 u_char         *
<a name="l01538"></a>01538 snmpv3_generate_engineID(<span class="keywordtype">size_t</span> * length)
<a name="l01539"></a>01539 {
<a name="l01540"></a>01540     u_char         *newID;
<a name="l01541"></a>01541     newID = (u_char *) malloc(engineIDLength);
<a name="l01542"></a>01542 
<a name="l01543"></a>01543     <span class="keywordflow">if</span> (newID) {
<a name="l01544"></a>01544         *length = snmpv3_get_engineID(newID, engineIDLength);
<a name="l01545"></a>01545     }
<a name="l01546"></a>01546 
<a name="l01547"></a>01547     <span class="keywordflow">if</span> (*length == 0) {
<a name="l01548"></a>01548         <a class="code" href="group__util.html#ga951e93edb6f0ea941e26155e3f8912a6" title="Frees a pointer only if it is !NULL and sets its value to NULL.">SNMP_FREE</a>(newID);
<a name="l01549"></a>01549         newID = NULL;
<a name="l01550"></a>01550     }
<a name="l01551"></a>01551 
<a name="l01552"></a>01552     <span class="keywordflow">return</span> newID;
<a name="l01553"></a>01553 
<a name="l01554"></a>01554 }                               <span class="comment">/* end snmpv3_generate_engineID() */</span>
<a name="l01555"></a>01555 
<a name="l01556"></a>01556 <span class="comment">/*</span>
<a name="l01557"></a>01557 <span class="comment"> * snmpv3_local_snmpEngineTime(): return the number of seconds since the</span>
<a name="l01558"></a>01558 <span class="comment"> * snmpv3 engine last incremented engine_boots </span>
<a name="l01559"></a>01559 <span class="comment"> */</span>
<a name="l01560"></a>01560 u_long
<a name="l01561"></a>01561 snmpv3_local_snmpEngineTime(<span class="keywordtype">void</span>)
<a name="l01562"></a>01562 {
<a name="l01563"></a>01563 <span class="preprocessor">#ifdef SNMP_USE_TIMES</span>
<a name="l01564"></a>01564 <span class="preprocessor"></span>  <span class="keyword">struct </span>tms dummy;
<a name="l01565"></a>01565   clock_t now = times(&amp;dummy);
<a name="l01566"></a>01566   <span class="comment">/* fixme: -1 is fault code... */</span>
<a name="l01567"></a>01567   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> result;
<a name="l01568"></a>01568 
<a name="l01569"></a>01569   <span class="keywordflow">if</span> (now &lt; snmpv3startClock) {
<a name="l01570"></a>01570       result = UINT_MAX - (snmpv3startClock - now);
<a name="l01571"></a>01571   } <span class="keywordflow">else</span> {
<a name="l01572"></a>01572       result = now - snmpv3startClock;
<a name="l01573"></a>01573   }
<a name="l01574"></a>01574   <span class="keywordflow">if</span> (result &lt; lastcalltime) {
<a name="l01575"></a>01575       <span class="comment">/* wrapped */</span>
<a name="l01576"></a>01576       wrapcounter++;
<a name="l01577"></a>01577   }
<a name="l01578"></a>01578   lastcalltime = result;
<a name="l01579"></a>01579   result =  (UINT_MAX/clockticks)*wrapcounter + result/clockticks;
<a name="l01580"></a>01580 
<a name="l01581"></a>01581   <span class="keywordflow">return</span> result;
<a name="l01582"></a>01582 <span class="preprocessor">#else </span><span class="comment">/* !SNMP_USE_TIMES */</span>
<a name="l01583"></a>01583     <span class="keyword">struct </span>timeval  now;
<a name="l01584"></a>01584 
<a name="l01585"></a>01585     gettimeofday(&amp;now, NULL);
<a name="l01586"></a>01586     <span class="keywordflow">return</span> calculate_sectime_diff(&amp;now, &amp;snmpv3starttime);
<a name="l01587"></a>01587 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_SYS_TIMES_H */</span>
<a name="l01588"></a>01588 }
<a name="l01589"></a>01589 
<a name="l01590"></a>01590 
<a name="l01591"></a>01591 
<a name="l01592"></a>01592 <span class="comment">/*</span>
<a name="l01593"></a>01593 <span class="comment"> * Code only for Linux systems </span>
<a name="l01594"></a>01594 <span class="comment"> */</span>
<a name="l01595"></a>01595 <span class="preprocessor">#if defined(IFHWADDRLEN) &amp;&amp; defined(SIOCGIFHWADDR)</span>
<a name="l01596"></a>01596 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span>
<a name="l01597"></a>01597 getHwAddress(<span class="keyword">const</span> <span class="keywordtype">char</span> *networkDevice, <span class="comment">/* e.g. &quot;eth0&quot;, &quot;eth1&quot; */</span>
<a name="l01598"></a>01598              <span class="keywordtype">char</span> *addressOut)
<a name="l01599"></a>01599 {                               <span class="comment">/* return address. Len=IFHWADDRLEN */</span>
<a name="l01600"></a>01600     <span class="comment">/*</span>
<a name="l01601"></a>01601 <span class="comment">     * getHwAddress(...)</span>
<a name="l01602"></a>01602 <span class="comment">     * *</span>
<a name="l01603"></a>01603 <span class="comment">     * *  This function will return a Network Interfaces Card&#39;s Hardware</span>
<a name="l01604"></a>01604 <span class="comment">     * *  address (aka MAC address).</span>
<a name="l01605"></a>01605 <span class="comment">     * *</span>
<a name="l01606"></a>01606 <span class="comment">     * *  Input Parameter(s):</span>
<a name="l01607"></a>01607 <span class="comment">     * *      networkDevice - a null terminated string with the name of a network</span>
<a name="l01608"></a>01608 <span class="comment">     * *                      device.  Examples: eth0, eth1, etc...</span>
<a name="l01609"></a>01609 <span class="comment">     * *</span>
<a name="l01610"></a>01610 <span class="comment">     * *  Output Parameter(s):</span>
<a name="l01611"></a>01611 <span class="comment">     * *      addressOut -    This is the binary value of the hardware address.</span>
<a name="l01612"></a>01612 <span class="comment">     * *                      This value is NOT converted into a hexadecimal string.</span>
<a name="l01613"></a>01613 <span class="comment">     * *                      The caller must pre-allocate for a return value of</span>
<a name="l01614"></a>01614 <span class="comment">     * *                      length IFHWADDRLEN</span>
<a name="l01615"></a>01615 <span class="comment">     * *</span>
<a name="l01616"></a>01616 <span class="comment">     * *  Return value:   This function will return zero (0) for success.  If</span>
<a name="l01617"></a>01617 <span class="comment">     * *                  an error occurred the function will return -1.</span>
<a name="l01618"></a>01618 <span class="comment">     * *</span>
<a name="l01619"></a>01619 <span class="comment">     * *  Caveats:    This has only been tested on Ethernet networking cards.</span>
<a name="l01620"></a>01620 <span class="comment">     */</span>
<a name="l01621"></a>01621     <span class="keywordtype">int</span>             sock;       <span class="comment">/* our socket */</span>
<a name="l01622"></a>01622     <span class="keyword">struct </span>ifreq    request;    <span class="comment">/* struct which will have HW address */</span>
<a name="l01623"></a>01623 
<a name="l01624"></a>01624     <span class="keywordflow">if</span> ((NULL == networkDevice) || (NULL == addressOut)) {
<a name="l01625"></a>01625         <span class="keywordflow">return</span> -1;
<a name="l01626"></a>01626     }
<a name="l01627"></a>01627     <span class="comment">/*</span>
<a name="l01628"></a>01628 <span class="comment">     * In order to find out the hardware (MAC) address of our system under</span>
<a name="l01629"></a>01629 <span class="comment">     * * Linux we must do the following:</span>
<a name="l01630"></a>01630 <span class="comment">     * * 1.  Create a socket</span>
<a name="l01631"></a>01631 <span class="comment">     * * 2.  Do an ioctl(...) call with the SIOCGIFHWADDRLEN operation.</span>
<a name="l01632"></a>01632 <span class="comment">     */</span>
<a name="l01633"></a>01633     sock = socket(AF_INET, SOCK_DGRAM, 0);
<a name="l01634"></a>01634     <span class="keywordflow">if</span> (sock &lt; 0) {
<a name="l01635"></a>01635         <span class="keywordflow">return</span> -1;
<a name="l01636"></a>01636     }
<a name="l01637"></a>01637     <span class="comment">/*</span>
<a name="l01638"></a>01638 <span class="comment">     * erase the request block </span>
<a name="l01639"></a>01639 <span class="comment">     */</span>
<a name="l01640"></a>01640     memset(&amp;request, 0, <span class="keyword">sizeof</span>(request));
<a name="l01641"></a>01641     <span class="comment">/*</span>
<a name="l01642"></a>01642 <span class="comment">     * copy the name of the net device we want to find the HW address for </span>
<a name="l01643"></a>01643 <span class="comment">     */</span>
<a name="l01644"></a>01644     strncpy(request.ifr_name, networkDevice, IFNAMSIZ - 1);
<a name="l01645"></a>01645     <span class="comment">/*</span>
<a name="l01646"></a>01646 <span class="comment">     * Get the HW address </span>
<a name="l01647"></a>01647 <span class="comment">     */</span>
<a name="l01648"></a>01648     <span class="keywordflow">if</span> (ioctl(sock, SIOCGIFHWADDR, &amp;request)) {
<a name="l01649"></a>01649         close(sock);
<a name="l01650"></a>01650         <span class="keywordflow">return</span> -1;
<a name="l01651"></a>01651     }
<a name="l01652"></a>01652     close(sock);
<a name="l01653"></a>01653     memcpy(addressOut, request.ifr_hwaddr.sa_data, IFHWADDRLEN);
<a name="l01654"></a>01654     <span class="keywordflow">return</span> 0;
<a name="l01655"></a>01655 }
<a name="l01656"></a>01656 <span class="preprocessor">#endif</span>
<a name="l01657"></a>01657 <span class="preprocessor"></span>
<a name="l01658"></a>01658 <span class="preprocessor">#ifdef NETSNMP_ENABLE_TESTING_CODE</span>
<a name="l01659"></a>01659 <span class="preprocessor"></span><span class="comment">/*</span>
<a name="l01660"></a>01660 <span class="comment"> * snmpv3_set_engineBootsAndTime(): this function does not exist.  Go away. </span>
<a name="l01661"></a>01661 <span class="comment"> */</span>
<a name="l01662"></a>01662 <span class="comment">/*</span>
<a name="l01663"></a>01663 <span class="comment"> * It certainly should never be used, unless in a testing scenero,</span>
<a name="l01664"></a>01664 <span class="comment"> * which is why it was created </span>
<a name="l01665"></a>01665 <span class="comment"> */</span>
<a name="l01666"></a>01666 <span class="keywordtype">void</span>
<a name="l01667"></a>01667 snmpv3_set_engineBootsAndTime(<span class="keywordtype">int</span> boots, <span class="keywordtype">int</span> ttime)
<a name="l01668"></a>01668 {
<a name="l01669"></a>01669     engineBoots = boots;
<a name="l01670"></a>01670     gettimeofday(&amp;snmpv3starttime, NULL);
<a name="l01671"></a>01671     snmpv3starttime.tv_sec -= ttime;
<a name="l01672"></a>01672 }
<a name="l01673"></a>01673 <span class="preprocessor">#endif</span>
</pre></div></div><!-- contents -->


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