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<section id="krb5-rd-priv-process-a-krb-priv-message">
<h1>krb5_rd_priv - Process a KRB-PRIV message.<a class="headerlink" href="#krb5-rd-priv-process-a-krb-priv-message" title="Permalink to this headline">¶</a></h1>
<dl class="c function">
<dt class="sig sig-object c" id="c.krb5_rd_priv">
<a class="reference internal" href="../types/krb5_error_code.html#c.krb5_error_code" title="krb5_error_code"><span class="n"><span class="pre">krb5_error_code</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">krb5_rd_priv</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="../types/krb5_context.html#c.krb5_context" title="krb5_context"><span class="n"><span class="pre">krb5_context</span></span></a><span class="w"> </span><span class="n"><span class="pre">context</span></span>, <a class="reference internal" href="../types/krb5_auth_context.html#c.krb5_auth_context" title="krb5_auth_context"><span class="n"><span class="pre">krb5_auth_context</span></span></a><span class="w"> </span><span class="n"><span class="pre">auth_context</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="../types/krb5_data.html#c.krb5_data" title="krb5_data"><span class="n"><span class="pre">krb5_data</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">inbuf</span></span>, <a class="reference internal" href="../types/krb5_data.html#c.krb5_data" title="krb5_data"><span class="n"><span class="pre">krb5_data</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">userdata_out</span></span>, <a class="reference internal" href="../types/krb5_replay_data.html#c.krb5_replay_data" title="krb5_replay_data"><span class="n"><span class="pre">krb5_replay_data</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">rdata_out</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.krb5_rd_priv" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
<dl class="field-list">
<dt class="field-odd">param</dt>
<dd class="field-odd"><p><strong>[in]</strong> <strong>context</strong> - Library context</p>
<p><strong>[in]</strong> <strong>auth_context</strong> - Authentication structure</p>
<p><strong>[in]</strong> <strong>inbuf</strong> - <strong>KRB-PRIV</strong> message to be parsed</p>
<p><strong>[out]</strong> <strong>userdata_out</strong> - Data parsed from <strong>KRB-PRIV</strong> message</p>
<p><strong>[out]</strong> <strong>rdata_out</strong> - Replay data. Specify NULL if not needed</p>
</dd>
</dl>
<dl class="field-list simple">
<dt class="field-odd">retval</dt>
<dd class="field-odd"><ul class="simple">
<li><p>0 Success; otherwise - Kerberos error codes</p></li>
</ul>
</dd>
</dl>
<p>This function parses a <strong>KRB-PRIV</strong> message, verifies its integrity, and stores its unencrypted data into <em>userdata_out</em> .</p>
<p>If <em>auth_context</em> has a remote address set, the address will be used to verify the sender address in the KRB-PRIV message. If <em>auth_context</em> has a local address set, it will be used to verify the receiver address in the KRB-PRIV message if the message contains one.</p>
<p>If the #KRB5_AUTH_CONTEXT_DO_SEQUENCE flag is set in <em>auth_context</em> , the sequence number of the KRB-PRIV message is checked against the remote sequence number field of <em>auth_context</em> . Otherwise, the sequence number is not used.</p>
<p>If the #KRB5_AUTH_CONTEXT_DO_TIME flag is set in <em>auth_context</em> , then the timestamp in the message is verified to be within the permitted clock skew of the current time, and the message is checked against an in-memory replay cache to detect reflections or replays.</p>
<p>Use krb5_free_data_contents() to free <em>userdata_out</em> when it is no longer needed.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>The <em>rdata_out</em> argument is required if the #KRB5_AUTH_CONTEXT_RET_TIME or #KRB5_AUTH_CONTEXT_RET_SEQUENCE flag is set in <em>auth_context</em> .</p>
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