<div class="content"><p> </p><p>The <b>RRPC_FWQueryFirewallRules2_31</b> method requests the
server to return all the firewall rules that match the specified query object,
as are contained in the store that is referenced by the <i>hPolicyStore</i>
handle. The method returns a linked list of all the firewall rules that match
the specified query object. The method is only supported for policy version
0x021F (section <span><a href="faf4ffbe-1d51-40ad-ae90-2230f2c0b6a9" data-linktype="relative-path">2.2.42</a></span>).</p><dl>
<dd>
<div><pre> DWORD RRPC_FWQueryFirewallRules2_31(
   [in] FW_CONN_HANDLE rpcConnHandle,
   [in] FW_POLICY_STORE_HANDLE hPolicyStore,
   [in] PFW_QUERY pQuery,
   [in] WORD wFlags,
   [out, ref] DWORD* pdwNumRules,
   [out] PFW_RULE ppRules
 );
</pre></div>
</dd></dl><p><b>rpcConnHandle:</b> An RPC binding handle that
connects to the RPC interface of the Firewall and Advanced Security Protocol.</p><p><b>hPolicyStore:</b> An input parameter that is an <span><a href="88f6ea4a-a946-4747-bb93-f142f1760752" data-linktype="relative-path">FW_POLICY_STORE_HANDLE</a></span>
data type (section 2.2.94). This parameter MUST contain an opened policy store
handle, successfully opened with the <b>RRPC_FWOpenPolicyStore (Opnum 0)</b>
method (section <span><a href="2157e39a-1bf0-4e0c-abae-0811fd918b11" data-linktype="relative-path">3.1.4.1</a></span>). The
handle MUST be the FW_STORE_TYPE_DYNAMIC policy store type (section <span><a href="37ebed95-8abf-472c-8b4b-7a510a2a6baa" data-linktype="relative-path">2.2.1</a></span>).</p><p><b>pQuery:</b> Represents the query object that the
client uses to specify which main mode rules MUST be retrieved from the store.
The query object MUST be valid, as specified in the definition of the <span><a href="51b69145-317a-4368-a6e5-7159e946ff14" data-linktype="relative-path">FW_QUERY</a></span>
data type (section 2.2.93).</p><p><b>wFlags:</b> A combination of flags from the <span><a href="aff3633c-43b2-4cef-ba63-f35b204a8a08" data-linktype="relative-path">FW_ENUM_RULES_FLAGS</a></span>
enumeration (section 2.2.33), which modifies the behavior of the method and
performs operations on the rules before returning them in the linked list.</p><p><b>pdwNumRules:</b> An output parameter that, on
success, MUST be equal to the number of rules returned.</p><p><b>ppRules:</b> An output parameter that, on success,
contains a linked list of FW_RULE data types (section <span><a href="8c008258-166d-46d4-9090-f2ffaa01be4b" data-linktype="relative-path">2.2.37</a></span>).</p><p><b>Return Values:</b> The method returns 0 if
successful; if it fails, it returns a nonzero error code. The field can take
any specific error code value, as specified in <span><a href="../ms-erref/1bc92ddf-b79e-413c-bbaa-99a5281a6c90" data-linktype="relative-path">[MS-ERREF]</a></span>.
The following return values are common.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Return value/code</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>
  <p>0x00000005</p>
  <p>ERROR_ACCESS_DENIED</p>
  </td>
  <td>
  <p>The client does not have the required credentials to
  call the method.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000057</p>
  <p>ERROR_INVALID_PARAMETER</p>
  </td>
  <td>
  <p>One of the parameters of this method is incorrect or
  is required but not specified. This error can be returned in the following
  cases:</p>
  <p>- One of the required values is not specified.</p>
  <p>- The <i>pQuery</i> parameter contains invalid
  conditions.</p>
  </td>
 </tr></tbody></table>
</dd></dl><p><b>Exceptions Thrown:</b> No exceptions are thrown
beyond those thrown by the underlying RPC protocol, as specified in <span><a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a></span>.
If any lower-layer errors are reported by RPC exception, this exception is
converted to an error code and reported to higher-layer protocols via the
return value.</p><p>The server MUST validate that the client is authorized to
perform the requested operation (as defined in section <span><a href="b0c93352-8371-4d63-abca-b0cc8dbcc3d7" data-linktype="relative-path">3.1.4</a></span>)
before executing this method.</p></div>