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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"> * scapi.h</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004 
<a name="l00005"></a>00005 <span class="preprocessor">#ifndef _SCAPI_H</span>
<a name="l00006"></a>00006 <span class="preprocessor"></span><span class="preprocessor">#define _SCAPI_H</span>
<a name="l00007"></a>00007 <span class="preprocessor"></span>
<a name="l00008"></a>00008 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00009"></a>00009 <span class="preprocessor"></span><span class="keyword">extern</span>          <span class="stringliteral">&quot;C&quot;</span> {
<a name="l00010"></a>00010 <span class="preprocessor">#endif</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span>
<a name="l00012"></a>00012     <span class="comment">/*</span>
<a name="l00013"></a>00013 <span class="comment">     * Authentication/privacy transform bitlengths.</span>
<a name="l00014"></a>00014 <span class="comment">     */</span>
<a name="l00015"></a>00015 <span class="preprocessor">#define SNMP_TRANS_AUTHLEN_HMACMD5      128</span>
<a name="l00016"></a>00016 <span class="preprocessor"></span><span class="preprocessor">#define SNMP_TRANS_AUTHLEN_HMACSHA1     160</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span>
<a name="l00018"></a>00018 <span class="preprocessor">#define SNMP_TRANS_AUTHLEN_HMAC96       96</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="preprocessor">#define SNMP_TRANS_PRIVLEN_1DES         64</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define SNMP_TRANS_PRIVLEN_1DES_IV      64</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#define SNMP_TRANS_PRIVLEN_AES          128</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#define SNMP_TRANS_PRIVLEN_AES_IV       128</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#define SNMP_TRANS_AES_PADSIZE          128  </span><span class="comment">/* backwards compat */</span>
<a name="l00026"></a>00026 <span class="preprocessor">#define SNMP_TRANS_PRIVLEN_AES128       128  </span><span class="comment">/* backwards compat */</span>
<a name="l00027"></a>00027 <span class="preprocessor">#define SNMP_TRANS_PRIVLEN_AES128_IV    128  </span><span class="comment">/* backwards compat */</span>
<a name="l00028"></a>00028 <span class="preprocessor">#define SNMP_TRANS_AES_AES128_PADSIZE   128  </span><span class="comment">/* backwards compat */</span>
<a name="l00029"></a>00029 
<a name="l00030"></a>00030     <span class="comment">/*</span>
<a name="l00031"></a>00031 <span class="comment">     * Prototypes.</span>
<a name="l00032"></a>00032 <span class="comment">     */</span>
<a name="l00033"></a>00033     <span class="keywordtype">int</span>             sc_get_properlength(<span class="keyword">const</span> oid * hashtype,
<a name="l00034"></a>00034                                         u_int hashtype_len);
<a name="l00035"></a>00035     <span class="keywordtype">int</span>             sc_get_proper_priv_length(<span class="keyword">const</span> oid * privtype,
<a name="l00036"></a>00036                                               u_int privtype_len);
<a name="l00037"></a>00037 
<a name="l00038"></a>00038     <span class="keywordtype">int</span>             sc_init(<span class="keywordtype">void</span>);
<a name="l00039"></a>00039     <span class="keywordtype">int</span>             sc_shutdown(<span class="keywordtype">int</span> majorID, <span class="keywordtype">int</span> minorID, <span class="keywordtype">void</span> *serverarg,
<a name="l00040"></a>00040                                 <span class="keywordtype">void</span> *clientarg);
<a name="l00041"></a>00041 
<a name="l00042"></a>00042     <span class="keywordtype">int</span>             sc_random(u_char * buf, <span class="keywordtype">size_t</span> * buflen);
<a name="l00043"></a>00043 
<a name="l00044"></a>00044     <span class="keywordtype">int</span>             sc_generate_keyed_hash(<span class="keyword">const</span> oid * authtype,
<a name="l00045"></a>00045                                            <span class="keywordtype">size_t</span> authtypelen,
<a name="l00046"></a>00046                                            u_char * key, u_int keylen,
<a name="l00047"></a>00047                                            u_char * message, u_int msglen,
<a name="l00048"></a>00048                                            u_char * MAC, <span class="keywordtype">size_t</span> * maclen);
<a name="l00049"></a>00049 
<a name="l00050"></a>00050     <span class="keywordtype">int</span>             sc_check_keyed_hash(<span class="keyword">const</span> oid * authtype,
<a name="l00051"></a>00051                                         <span class="keywordtype">size_t</span> authtypelen, u_char * key,
<a name="l00052"></a>00052                                         u_int keylen, u_char * message,
<a name="l00053"></a>00053                                         u_int msglen, u_char * MAC,
<a name="l00054"></a>00054                                         u_int maclen);
<a name="l00055"></a>00055 
<a name="l00056"></a>00056     <span class="keywordtype">int</span>             sc_encrypt(<span class="keyword">const</span> oid * privtype, <span class="keywordtype">size_t</span> privtypelen,
<a name="l00057"></a>00057                                u_char * key, u_int keylen,
<a name="l00058"></a>00058                                u_char * iv, u_int ivlen,
<a name="l00059"></a>00059                                u_char * plaintext, u_int ptlen,
<a name="l00060"></a>00060                                u_char * ciphertext, <span class="keywordtype">size_t</span> * ctlen);
<a name="l00061"></a>00061 
<a name="l00062"></a>00062     <span class="keywordtype">int</span>             sc_decrypt(<span class="keyword">const</span> oid * privtype, <span class="keywordtype">size_t</span> privtypelen,
<a name="l00063"></a>00063                                u_char * key, u_int keylen,
<a name="l00064"></a>00064                                u_char * iv, u_int ivlen,
<a name="l00065"></a>00065                                u_char * ciphertext, u_int ctlen,
<a name="l00066"></a>00066                                u_char * plaintext, <span class="keywordtype">size_t</span> * ptlen);
<a name="l00067"></a>00067 
<a name="l00068"></a>00068     <span class="keywordtype">int</span>             sc_hash(<span class="keyword">const</span> oid * hashtype, <span class="keywordtype">size_t</span> hashtypelen,
<a name="l00069"></a>00069                             u_char * buf, <span class="keywordtype">size_t</span> buf_len,
<a name="l00070"></a>00070                             u_char * MAC, <span class="keywordtype">size_t</span> * MAC_len);
<a name="l00071"></a>00071 
<a name="l00072"></a>00072     <span class="keywordtype">int</span>             sc_get_transform_type(oid * hashtype,
<a name="l00073"></a>00073                                           u_int hashtype_len,
<a name="l00074"></a>00074                                           <span class="keywordtype">int</span> (**hash_fn) (<span class="keyword">const</span> <span class="keywordtype">int</span> mode,
<a name="l00075"></a>00075                                                            <span class="keywordtype">void</span> **context,
<a name="l00076"></a>00076                                                            <span class="keyword">const</span> u_char *
<a name="l00077"></a>00077                                                            data,
<a name="l00078"></a>00078                                                            <span class="keyword">const</span> <span class="keywordtype">int</span>
<a name="l00079"></a>00079                                                            data_len,
<a name="l00080"></a>00080                                                            u_char **
<a name="l00081"></a>00081                                                            digest,
<a name="l00082"></a>00082                                                            <span class="keywordtype">size_t</span> *
<a name="l00083"></a>00083                                                            digest_len));
<a name="l00084"></a>00084 
<a name="l00085"></a>00085 
<a name="l00086"></a>00086     <span class="comment">/*</span>
<a name="l00087"></a>00087 <span class="comment">     * All functions devolve to the following block if we can&#39;t do cryptography</span>
<a name="l00088"></a>00088 <span class="comment">     */</span>
<a name="l00089"></a>00089 <span class="preprocessor">#define _SCAPI_NOT_CONFIGURED                                   \</span>
<a name="l00090"></a>00090 <span class="preprocessor">{                                                               \</span>
<a name="l00091"></a>00091 <span class="preprocessor">        snmp_log(LOG_ERR, &quot;Encryption support not enabled.\n&quot;); \</span>
<a name="l00092"></a>00092 <span class="preprocessor">        DEBUGMSGTL((&quot;scapi&quot;, &quot;SCAPI not configured&quot;));          \</span>
<a name="l00093"></a>00093 <span class="preprocessor">        return SNMPERR_SC_NOT_CONFIGURED;                       \</span>
<a name="l00094"></a>00094 <span class="preprocessor">}</span>
<a name="l00095"></a>00095 <span class="preprocessor"></span>
<a name="l00096"></a>00096     <span class="comment">/*</span>
<a name="l00097"></a>00097 <span class="comment">     * define a transform type if we&#39;re using the internal md5 support </span>
<a name="l00098"></a>00098 <span class="comment">     */</span>
<a name="l00099"></a>00099 <span class="preprocessor">#ifdef NETSNMP_USE_INTERNAL_MD5</span>
<a name="l00100"></a>00100 <span class="preprocessor"></span><span class="preprocessor">#define INTERNAL_MD5 1</span>
<a name="l00101"></a>00101 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00102"></a>00102 <span class="preprocessor"></span>
<a name="l00103"></a>00103 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00104"></a>00104 <span class="preprocessor"></span>}
<a name="l00105"></a>00105 <span class="preprocessor">#endif</span>
<a name="l00106"></a>00106 <span class="preprocessor"></span><span class="preprocessor">#endif                          </span><span class="comment">/* _SCAPI_H */</span>
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