<div class="content"><p> </p><p>The <b>R_DhcpCreateClientInfoVQ</b> method sets\modifies the
DHCPv4 client lease record on the DHCP server database.</p><dl>
<dd>
<div><pre> DWORD R_DhcpCreateClientInfoVQ(
   [in, unique, string] DHCP_SRV_HANDLE ServerIpAddress,
   [in, ref] LPDHCP_CLIENT_INFO_VQ ClientInfo
 );
</pre></div>
</dd></dl><p><b>ServerIpAddress: </b>The IP address/host name of
the DHCP server. This parameter is unused.</p><p><b>ClientInfo: </b>A pointer of type <span><a href="6a445cf3-6e6c-4e29-9817-ac78adc50336" data-linktype="relative-path">DHCP_CLIENT_INFO_VQ (section 2.2.1.2.19)</a></span>
structure that contains the DHCPv4 client lease record information that needs
to be set on the DHCPv4 server. The caller MUST pass the <b>ClientIPAddress</b>
and <b>ClientHardwareAddress</b> members when adding a DHCPv4 client lease
record to the DHCPv4 server database. The <b>ClientHardwareAddress</b> member
represents a <span><a href="a9d6a415-4de6-4058-befe-ca2e42764485#gt_195d8585-7de6-4574-9abf-9db104aaa40c" data-linktype="relative-path">DHCPv4 client-identifier</a></span>
(section <span><a href="7c88f58b-c615-4386-a643-ab05b860a003" data-linktype="relative-path">2.2.1.2.5.1</a></span>).
Members <b>ClientName</b>, <b>ClientComment</b>, <b>ClientLeaseExpires</b>, and
<b>OwnerHost</b> are modified on the DHCPv4 client lease record identified by
the <b>ClientIPaddress</b> member.</p><p><b>Return Values: </b>A 32-bit unsigned integer value
that indicates return status. A return value ERROR_SUCCESS (0x00000000)
indicates that the operation was completed successfully, else it contains a
Win32 error code, as specified in <span><a href="../ms-erref/1bc92ddf-b79e-413c-bbaa-99a5281a6c90" data-linktype="relative-path">[MS-ERREF]</a></span>.
This error code value can correspond to a DHCP-specific failure, which takes a
value between 20000 and 20099, or any generic failure. </p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Return value/code</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>
  <p>0x00000000</p>
  <p>ERROR_SUCCESS</p>
  </td>
  <td>
  <p>The call was successful.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00004E2D</p>
  <p>ERROR_DHCP_JET_ERROR</p>
  </td>
  <td>
  <p>An error occurred while accessing the DHCP server
  database.</p>
  </td>
 </tr></tbody></table>
</dd></dl><p>The opnum field value for this method is 44.</p><p>When processing this call, the DHCP server MUST do the
following:</p><ul><li><p><span><span> 
</span></span>Validate that this method is authorized for read/write access per
section <span><a href="38840bd0-0a5a-47ed-bc69-0dd870d33aec" data-linktype="relative-path">3.5.5</a></span>. If not,
return the error ERROR_ACCESS_DENIED.</p>
</li><li><p><span><span> 
</span></span>Validate if the DHCPv4 client&#39;s hardware address data and its
length are non-NULL. If they are NULL, return the error
ERROR_INVALID_PARAMETER.</p>
</li><li><p><span><span> 
</span></span>Iterate through the server ADM element <b>DHCPv4ScopesList</b>,
and retrieve the <b>DHCPv4Scope</b> ADM element entry whose IPv4 range contains
the IPv4 address specified by the <b>ClientIpAddress</b> member of the <i>ClientInfo</i>
parameter. In case of an error, return ERROR_INVALID_PARAMETER.</p>
</li><li><p><span><span> 
</span></span>Create the <span><a href="a9d6a415-4de6-4058-befe-ca2e42764485#gt_4c35997a-5d90-4d7e-96c8-346f4ad0a63f" data-linktype="relative-path">DHCPv4 client unique ID</a></span>
(section <span><a href="651865ec-6404-4191-ad30-113578a94556" data-linktype="relative-path">2.2.1.2.5.2</a></span>) for
the DHCPv4 client from the <b>ScopeInfo.SubnetAddress</b> ADM element of the
specified <b>DHCPv4Scope</b> ADM element, and the DHCPv4 client-identifier that
is the <b>ClientHardwareAddress</b> member, as specified in the <i>ClientInfo</i>
parameter.</p>
</li><li><p><span><span> 
</span></span>If there is a <b>DHCPv4Client</b> ADM element entry corresponding
to this DHCPv4 client unique ID and/or a client IP address already in the <b>DHCPv4ClientsList</b>
ADM element, return ERROR_DHCP_JET_ERROR. Otherwise, create a <b>DHCPv4Client</b>
ADM element object and set the <b>ClientIPAddress</b>, <b>ClientName</b>, <b>ClientComment</b>,
<b>Status</b>, <b>ProbationEnds</b>, <b>QuarantineCapable</b>, and <b>ClientLeaseExpires</b>
members as specified in the <i>ClientInfo</i> input parameter.<a id="Appendix_A_Target_40"></a><a aria-label="Product behavior note 40" href="afab0546-79ae-4764-8dab-27a85cca5145#Appendix_A_40" data-linktype="relative-path">&lt;40&gt;</a> Set the other fields of the <b>DHCPv4Client</b>
ADM element as follows:</p>
<ul><li><p><span><span>  </span></span>The
<b>DHCPv4Client.SubnetMask</b> ADM element is set to <b>ScopeInfo.SubnetAddress</b>
ADM element of the retrieved <b>DHCPv4Scope</b> ADM element.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.ClientHardwareAddress</b> ADM element is set to the DHCPv4
client unique ID created in previous steps.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.OwnerHost.NetBiosName</b> ADM element is set to the <span><a href="a9d6a415-4de6-4058-befe-ca2e42764485#gt_b86c44e6-57df-4c48-8163-5e3fa7bdcff4" data-linktype="relative-path">NetBIOS</a></span>
name of the DHCPv4 Server.</p>
<p>The <b>OwnerHost.IpAddress</b>
ADM element is set to the <i>ServerIpAddress</i> parameter in case an IP
address is passed. </p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.bClientType</b> ADM element is set to CLIENT_TYPE_NONE.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.AddressState</b> ADM element is set to ADDRESS_STATE_ACTIVE.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.SentPotExpTime</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.AckPotExpTime</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.RecvPotExpTime</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.StartTime</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.CltLastTransTime</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.LastBndUpdTime</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.flags</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.bndMsgStatus</b> ADM element is set to 0.</p>
</li><li><p><span><span>  </span></span>The
<b>DHCPv4Client.PolicyName</b> ADM element is set to NULL.</p>
<p>Insert the object into the <b>Dhcpv4Scope.DHCPv4ClientsList</b>
ADM element, and return ERROR_SUCCESS.</p>
</li></ul></li></ul><p><b>Exceptions Thrown:</b> No exceptions SHOULD be thrown
beyond those thrown by the underlying RPC protocol <span><a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a></span>.</p></div>