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<div class="section" id="module-windows.rpc">
<span id="windows-rpc-alpc-based-windows-rpc"></span><h1>13. <code class="docutils literal notranslate"><span class="pre">windows.rpc</span></code> – ALPC-based Windows RPC<a class="headerlink" href="#module-windows.rpc" title="Permalink to this headline"></a></h1>
<p>The <a class="reference internal" href="#module-windows.rpc" title="windows.rpc"><code class="xref py py-mod docutils literal notranslate"><span class="pre">windows.rpc</span></code></a> allows to perform the basic for MS-RPC:</p>
<blockquote>
<div><ul class="simple">
<li>find interface endpoints</li>
<li>connect to it</li>
<li>bind to interfaces</li>
<li>perform call</li>
<li>Marshall/Unmarshall NDR</li>
</ul>
</div></blockquote>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>See samples:</p>
<blockquote class="last">
<div><ul class="simple">
<li><a class="reference internal" href="sample.html#sample-rpc-uac"><span class="std std-ref">Manual UAC</span></a></li>
<li><a class="reference internal" href="sample.html#sample-rpc-lsass"><span class="std std-ref">Manual LsarEnumeratePrivileges</span></a></li>
</ul>
</div></blockquote>
</div>
<div class="section" id="rpcclient">
<h2>13.1. RPCClient<a class="headerlink" href="#rpcclient" title="Permalink to this headline"></a></h2>
<dl class="class">
<dt id="windows.rpc.RPCClient">
<em class="property">class </em><code class="descclassname">windows.rpc.</code><code class="descname">RPCClient</code><span class="sig-paren">(</span><em>port</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/client.html#RPCClient"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.RPCClient" title="Permalink to this definition"></a></dt>
<dd><p>A client for RPC-over-ALPC able to bind to interface and perform calls using NDR32 marshalling</p>
<dl class="attribute">
<dt id="windows.rpc.RPCClient.alpc_client">
<code class="descname">alpc_client</code><em class="property"> = None</em><a class="headerlink" href="#windows.rpc.RPCClient.alpc_client" title="Permalink to this definition"></a></dt>
<dd><p>The <a class="reference internal" href="alpc.html#windows.alpc.AlpcClient" title="windows.alpc.AlpcClient"><code class="xref py py-class docutils literal notranslate"><span class="pre">windows.alpc.AlpcClient</span></code></a> used to communicate with the server</p>
</dd></dl>
<dl class="method">
<dt id="windows.rpc.RPCClient.bind">
<code class="descname">bind</code><span class="sig-paren">(</span><em>IID_str</em>, <em>version=(1</em>, <em>0)</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/client.html#RPCClient.bind"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.RPCClient.bind" title="Permalink to this definition"></a></dt>
<dd><p>Bind to the <code class="docutils literal notranslate"><span class="pre">IID_str</span></code> with the given <code class="docutils literal notranslate"><span class="pre">version</span></code></p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><code class="xref py py-class docutils literal notranslate"><span class="pre">windows.generated_def.IID</span></code></td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="windows.rpc.RPCClient.call">
<code class="descname">call</code><span class="sig-paren">(</span><em>IID</em>, <em>method_offset</em>, <em>params</em>, <em>ipid=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/client.html#RPCClient.call"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.RPCClient.call" title="Permalink to this definition"></a></dt>
<dd><p>Call method number <code class="docutils literal notranslate"><span class="pre">method_offset</span></code> of interface <code class="docutils literal notranslate"><span class="pre">IID</span></code> with mashalled <code class="docutils literal notranslate"><span class="pre">params</span></code></p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>IID</strong> (<a class="reference internal" href="winstructs_generated.html#windows.generated_def.winstructs.IID" title="windows.generated_def.winstructs.IID"><em>IID</em></a>) – An IID previously returned by <a class="reference internal" href="#windows.rpc.RPCClient.bind" title="windows.rpc.RPCClient.bind"><code class="xref py py-func docutils literal notranslate"><span class="pre">bind()</span></code></a></li>
<li><strong>method_offset</strong> (<a class="reference external" href="https://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><em>int</em></a>) – </li>
<li><strong>params</strong> (<a class="reference external" href="https://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><em>str</em></a>) – The mashalled parameters (NDR32)</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="https://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="windows.rpc.RPCClient.forge_alpc_request">
<code class="descname">forge_alpc_request</code><span class="sig-paren">(</span><em>IID</em>, <em>method_offset</em>, <em>params</em>, <em>ipid=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/client.html#RPCClient.forge_alpc_request"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.RPCClient.forge_alpc_request" title="Permalink to this definition"></a></dt>
<dd><p>Craft an ALPC message containing an RPC request to call <code class="docutils literal notranslate"><span class="pre">method_offset</span></code> of interface <code class="docutils literal notranslate"><span class="pre">IID`</span>
<span class="pre">with</span> <span class="pre">``params</span></code>.
Can be used to craft request without directly sending it</p>
</dd></dl>
</dd></dl>
</div>
<div class="section" id="epmapper">
<h2>13.2. Epmapper<a class="headerlink" href="#epmapper" title="Permalink to this headline"></a></h2>
<dl class="class">
<dt id="windows.rpc.epmapper.UnpackTower">
<em class="property">class </em><code class="descclassname">windows.rpc.epmapper.</code><code class="descname">UnpackTower</code><span class="sig-paren">(</span><em>protseq</em>, <em>endpoint</em>, <em>address</em>, <em>object</em>, <em>syntax</em><span class="sig-paren">)</span><a class="headerlink" href="#windows.rpc.epmapper.UnpackTower" title="Permalink to this definition"></a></dt>
<dd><dl class="attribute">
<dt id="windows.rpc.epmapper.UnpackTower.address">
<code class="descname">address</code><a class="headerlink" href="#windows.rpc.epmapper.UnpackTower.address" title="Permalink to this definition"></a></dt>
<dd><p>Alias for field number 2</p>
</dd></dl>
<dl class="attribute">
<dt id="windows.rpc.epmapper.UnpackTower.endpoint">
<code class="descname">endpoint</code><a class="headerlink" href="#windows.rpc.epmapper.UnpackTower.endpoint" title="Permalink to this definition"></a></dt>
<dd><p>Alias for field number 1</p>
</dd></dl>
<dl class="attribute">
<dt id="windows.rpc.epmapper.UnpackTower.object">
<code class="descname">object</code><a class="headerlink" href="#windows.rpc.epmapper.UnpackTower.object" title="Permalink to this definition"></a></dt>
<dd><p>Alias for field number 3</p>
</dd></dl>
<dl class="attribute">
<dt id="windows.rpc.epmapper.UnpackTower.protseq">
<code class="descname">protseq</code><a class="headerlink" href="#windows.rpc.epmapper.UnpackTower.protseq" title="Permalink to this definition"></a></dt>
<dd><p>Alias for field number 0</p>
</dd></dl>
<dl class="attribute">
<dt id="windows.rpc.epmapper.UnpackTower.syntax">
<code class="descname">syntax</code><a class="headerlink" href="#windows.rpc.epmapper.UnpackTower.syntax" title="Permalink to this definition"></a></dt>
<dd><p>Alias for field number 4</p>
</dd></dl>
</dd></dl>
<div class="section" id="find-alpc-endpoints">
<h3>13.2.1. <a class="reference internal" href="#windows.rpc.find_alpc_endpoints" title="windows.rpc.find_alpc_endpoints"><code class="xref py py-func docutils literal notranslate"><span class="pre">find_alpc_endpoints()</span></code></a><a class="headerlink" href="#find-alpc-endpoints" title="Permalink to this headline"></a></h3>
<dl class="function">
<dt id="windows.rpc.find_alpc_endpoints">
<code class="descclassname">windows.rpc.</code><code class="descname">find_alpc_endpoints</code><span class="sig-paren">(</span><em>targetiid</em>, <em>version=(1</em>, <em>0)</em>, <em>nb_response=1</em>, <em>sid=_WELL_KNOWN_SID_TYPE.WinLocalSystemSid(0x16L)</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/epmapper.html#find_alpc_endpoints"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.find_alpc_endpoints" title="Permalink to this definition"></a></dt>
<dd><p>Ask the EPMapper for ALPC endpoints of <code class="docutils literal notranslate"><span class="pre">targetiid:version</span></code> (maximum of <code class="docutils literal notranslate"><span class="pre">nb_response</span></code>)</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>targetiid</strong> (<a class="reference external" href="https://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><em>str</em></a>) – The IID of the requested interface</li>
<li><strong>version</strong> (<em>(</em><a class="reference external" href="https://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><em>int</em></a><em>,</em><a class="reference external" href="https://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><em>int</em></a><em>)</em>) – The version requested interface</li>
<li><strong>nb_response</strong> (<a class="reference external" href="https://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><em>int</em></a>) – The maximum number of response</li>
<li><strong>sid</strong> (<a class="reference internal" href="winstructs_generated.html#windows.generated_def.winstructs.WELL_KNOWN_SID_TYPE" title="windows.generated_def.winstructs.WELL_KNOWN_SID_TYPE"><em>WELL_KNOWN_SID_TYPE</em></a>) – The SID used to request the EPMapper</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">[<a class="reference internal" href="#windows.rpc.epmapper.UnpackTower" title="windows.rpc.epmapper.UnpackTower"><code class="xref py py-class docutils literal notranslate"><span class="pre">UnpackTower</span></code></a>] – A list of <a class="reference internal" href="#windows.rpc.epmapper.UnpackTower" title="windows.rpc.epmapper.UnpackTower"><code class="xref py py-class docutils literal notranslate"><span class="pre">UnpackTower</span></code></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<p>Example:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">windows.rpc</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">UAC_UIID</span> <span class="o">=</span> <span class="s2">&quot;201ef99a-7fa0-444c-9399-19ba84f12a1a&quot;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">windows</span><span class="o">.</span><span class="n">rpc</span><span class="o">.</span><span class="n">find_alpc_endpoints</span><span class="p">(</span><span class="n">UAC_UIID</span><span class="p">)</span>
<span class="go">[UnpackTower(protseq=&#39;ncalrpc&#39;,</span>
<span class="go"> endpoint=bytearray(b&#39;LRPC-c30c67fef2afa1612b&#39;),</span>
<span class="go"> address=None,</span>
<span class="go"> object=&lt;RPC_IF_ID &quot;201EF99A-7FA0-444C-9399-19BA84F12A1A&quot; (1, 0)&gt;,</span>
<span class="go"> syntax=&lt;RPC_IF_ID &quot;8A885D04-1CEB-11C9-9FE8-08002B104860&quot; (2, 0)&gt;)]</span>
</pre></div>
</div>
</div>
<div class="section" id="find-alpc-endpoint-and-connect">
<h3>13.2.2. <a class="reference internal" href="#windows.rpc.find_alpc_endpoint_and_connect" title="windows.rpc.find_alpc_endpoint_and_connect"><code class="xref py py-func docutils literal notranslate"><span class="pre">find_alpc_endpoint_and_connect()</span></code></a><a class="headerlink" href="#find-alpc-endpoint-and-connect" title="Permalink to this headline"></a></h3>
<dl class="function">
<dt id="windows.rpc.find_alpc_endpoint_and_connect">
<code class="descclassname">windows.rpc.</code><code class="descname">find_alpc_endpoint_and_connect</code><span class="sig-paren">(</span><em>targetiid</em>, <em>version=(1</em>, <em>0)</em>, <em>sid=_WELL_KNOWN_SID_TYPE.WinLocalSystemSid(0x16L)</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/epmapper.html#find_alpc_endpoint_and_connect"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.find_alpc_endpoint_and_connect" title="Permalink to this definition"></a></dt>
<dd><p>Ask the EPMapper for ALPC endpoints of <code class="docutils literal notranslate"><span class="pre">targetiid:version</span></code> and connect to one of them.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>targetiid</strong> (<a class="reference external" href="https://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><em>str</em></a>) – The IID of the requested interface</li>
<li><strong>version</strong> (<em>(</em><a class="reference external" href="https://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><em>int</em></a><em>,</em><a class="reference external" href="https://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><em>int</em></a><em>)</em>) – The version requested interface</li>
<li><strong>sid</strong> (<a class="reference internal" href="winstructs_generated.html#windows.generated_def.winstructs.WELL_KNOWN_SID_TYPE" title="windows.generated_def.winstructs.WELL_KNOWN_SID_TYPE"><em>WELL_KNOWN_SID_TYPE</em></a>) – The SID used to request the EPMapper</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A connected <a class="reference internal" href="#windows.rpc.RPCClient" title="windows.rpc.RPCClient"><code class="xref py py-class docutils literal notranslate"><span class="pre">RPCClient</span></code></a></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<p>Example:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">windows.rpc</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">UAC_UIID</span> <span class="o">=</span> <span class="s2">&quot;201ef99a-7fa0-444c-9399-19ba84f12a1a&quot;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">client</span> <span class="o">=</span> <span class="n">windows</span><span class="o">.</span><span class="n">rpc</span><span class="o">.</span><span class="n">find_alpc_endpoint_and_connect</span><span class="p">(</span><span class="n">UAC_UIID</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">client</span>
<span class="go">&lt;windows.rpc.client.RPCClient object at 0x046A1470&gt;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">client</span><span class="o">.</span><span class="n">alpc_client</span><span class="o">.</span><span class="n">port_name</span>
<span class="go">&#39;\\RPC Control\\LRPC-c30c67fef2afa1612b&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">iid</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="n">UAC_UIID</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">iid</span>
<span class="go">&lt;IID &quot;201EF99A-7FA0-444C-9399-19BA84F12A1A&quot;&gt;</span>
</pre></div>
</div>
</div>
</div>
<div class="section" id="module-windows.rpc.ndr">
<span id="ndr"></span><h2>13.3. Ndr<a class="headerlink" href="#module-windows.rpc.ndr" title="Permalink to this headline"></a></h2>
<p>The <a class="reference internal" href="#module-windows.rpc.ndr" title="windows.rpc.ndr"><code class="xref py py-mod docutils literal notranslate"><span class="pre">windows.rpc.ndr</span></code></a> module offers some construction to help marshalling types and structures to NDR.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">The NDR supported for now is <code class="docutils literal notranslate"><span class="pre">8a885d04-1ceb-11c9-9fe8-08002b104860</span></code> version <code class="docutils literal notranslate"><span class="pre">2.0</span></code></p>
</div>
<p>Each NDR class has a function <code class="xref py py-func docutils literal notranslate"><span class="pre">pack()</span></code>.</p>
<dl class="class">
<dt id="windows.rpc.ndr.NdrSID">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrSID</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrSID"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrSID" title="Permalink to this definition"></a></dt>
<dd><dl class="classmethod">
<dt id="windows.rpc.ndr.NdrSID.pack">
<em class="property">classmethod </em><code class="descname">pack</code><span class="sig-paren">(</span><em>psid</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrSID.pack"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrSID.pack" title="Permalink to this definition"></a></dt>
<dd><p>Pack a PSID</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>psid</strong> (<a class="reference internal" href="winstructs_generated.html#windows.generated_def.winstructs.PSID" title="windows.generated_def.winstructs.PSID"><em>PSID</em></a>) – </td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="classmethod">
<dt id="windows.rpc.ndr.NdrSID.unpack">
<em class="property">classmethod </em><code class="descname">unpack</code><span class="sig-paren">(</span><em>stream</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrSID.unpack"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrSID.unpack" title="Permalink to this definition"></a></dt>
<dd><p>Unpack a PSID, partial implementation that returns a <a class="reference external" href="https://docs.python.org/2.7/library/functions.html#str" title="(in Python v2.7)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a> and not a PSID</p>
</dd></dl>
</dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">windows.generated_def</span> <span class="k">as</span> <span class="nn">gdef</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">sid</span> <span class="o">=</span> <span class="n">windows</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">get_known_sid</span><span class="p">(</span><span class="n">gdef</span><span class="o">.</span><span class="n">WinLocalSystemSid</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">sid</span>
<span class="go">c_void_p(78304040)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">psidstr</span> <span class="o">=</span> <span class="n">windows</span><span class="o">.</span><span class="n">rpc</span><span class="o">.</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrSID</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="n">sid</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">psidstr</span>
<span class="go">&#39;\x01\x00\x00\x00\x01\x01\x00\x00\x00\x00\x00\x05\x12\x00\x00\x00&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">windows</span><span class="o">.</span><span class="n">rpc</span><span class="o">.</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrSID</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">windows</span><span class="o">.</span><span class="n">rpc</span><span class="o">.</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="n">psidstr</span><span class="p">))</span>
<span class="go"># Implementation is partial for now and does not return a PSID but a string</span>
<span class="go">&#39;\x01\x01\x00\x00\x00\x00\x00\x05\x12\x00\x00\x00&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrWString">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrWString</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrWString"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrWString" title="Permalink to this definition"></a></dt>
<dd><dl class="classmethod">
<dt id="windows.rpc.ndr.NdrWString.pack">
<em class="property">classmethod </em><code class="descname">pack</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrWString.pack"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrWString.pack" title="Permalink to this definition"></a></dt>
<dd><p>Pack string <code class="docutils literal notranslate"><span class="pre">data</span></code>. append <code class="docutils literal notranslate"><span class="pre">\x00</span></code> if not present at the end of the string</p>
</dd></dl>
</dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrWString</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="s2">&quot;Test-String</span><span class="se">\x00</span><span class="s2">&quot;</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">&#39;\x0c\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x00\x00T\x00e\x00s\x00t\x00-\x00S\x00t\x00r\x00i\x00n\x00g\x00\x00\x00&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrWString</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="go">u&#39;Test-String\x00&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrCString">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrCString</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrCString"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrCString" title="Permalink to this definition"></a></dt>
<dd><dl class="classmethod">
<dt id="windows.rpc.ndr.NdrCString.pack">
<em class="property">classmethod </em><code class="descname">pack</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrCString.pack"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrCString.pack" title="Permalink to this definition"></a></dt>
<dd><p>Pack string <code class="docutils literal notranslate"><span class="pre">data</span></code>. append <code class="docutils literal notranslate"><span class="pre">\x00</span></code> if not present at the end of the string</p>
</dd></dl>
</dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrCString</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="s2">&quot;Test-String</span><span class="se">\x00</span><span class="s2">&quot;</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">&#39;\x0c\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x00\x00Test-String\x00&#39;</span>
<span class="go"># TODO: implem unpack</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrLong">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrLong</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrLong"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrLong" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="mh">0x01020304</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">&#39;\x04\x03\x02\x01&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">hex</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="n">x</span><span class="p">)))</span>
<span class="go">&#39;0x1020304&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrHyper">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrHyper</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrHyper"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrHyper" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrHyper</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="mh">0x0102030405060708</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">&#39;\x08\x07\x06\x05\x04\x03\x02\x01&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">hex</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrHyper</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="n">x</span><span class="p">)))</span>
<span class="go">&#39;0x102030405060708L&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrShort">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrShort</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrShort"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrShort" title="Permalink to this definition"></a></dt>
<dd><div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrShort</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="mh">0x0102</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">&#39;\x02\x01&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">hex</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrShort</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="n">x</span><span class="p">)))</span>
<span class="go">&#39;0x102&#39;</span>
</pre></div>
</div>
</dd></dl>
<dl class="class">
<dt id="windows.rpc.ndr.NdrByte">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrByte</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrByte"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrByte" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrByte</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="mh">0x42</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">&#39;B&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">hex</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrByte</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="n">x</span><span class="p">)))</span>
<span class="go">&#39;0x42&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrUniquePTR">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrUniquePTR</code><span class="sig-paren">(</span><em>subcls</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrUniquePTR"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrUniquePTR" title="Permalink to this definition"></a></dt>
<dd><p>Create a UNIQUE PTR around a given Ndr type</p>
</dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="mh">0x11111111</span><span class="p">)</span>
<span class="go">&#39;\x11\x11\x11\x11&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrUniquePTR</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="p">)</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="mh">0x11111111</span><span class="p">)</span>
<span class="go">&#39;\x02\x02\x02\x02\x11\x11\x11\x11&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrConformantArray">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrConformantArray</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrConformantArray"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrConformantArray" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="class">
<dt id="windows.rpc.ndr.NdrConformantVaryingArrays">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrConformantVaryingArrays</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrConformantVaryingArrays"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrConformantVaryingArrays" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="class">
<dt id="windows.rpc.ndr.NdrLongConformantArray">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrLongConformantArray</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrLongConformantArray"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrLongConformantArray" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">windows</span><span class="o">.</span><span class="n">rpc</span><span class="o">.</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrLongConformantArray</span><span class="o">.</span><span class="n">pack</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">4</span><span class="p">])</span>
<span class="go">&#39;\x04\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00\x04\x00\x00\x00&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrByteConformantArray">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrByteConformantArray</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrByteConformantArray"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrByteConformantArray" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">windows</span><span class="o">.</span><span class="n">rpc</span><span class="o">.</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrByteConformantArray</span><span class="o">.</span><span class="n">pack</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">4</span><span class="p">])</span>
<span class="go">&#39;\x04\x00\x00\x00\x01\x02\x03\x04&#39;</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrStructure">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrStructure</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrStructure"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrStructure" title="Permalink to this definition"></a></dt>
<dd><p>a NDR structure that tries to respect the rules of pointer packing, this class should be subclassed with
an attribute <code class="docutils literal notranslate"><span class="pre">MEMBERS</span></code> describing the members of the class</p>
<dl class="classmethod">
<dt id="windows.rpc.ndr.NdrStructure.pack">
<em class="property">classmethod </em><code class="descname">pack</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrStructure.pack"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrStructure.pack" title="Permalink to this definition"></a></dt>
<dd><p>Pack data into the struct, <code class="docutils literal notranslate"><span class="pre">data</span></code> size must equals the number of members in the structure</p>
</dd></dl>
<dl class="classmethod">
<dt id="windows.rpc.ndr.NdrStructure.unpack">
<em class="property">classmethod </em><code class="descname">unpack</code><span class="sig-paren">(</span><em>stream</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrStructure.unpack"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrStructure.unpack" title="Permalink to this definition"></a></dt>
<dd><p>Unpack the structure from the stream</p>
</dd></dl>
</dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="k">class</span> <span class="nc">NDRTest</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStructure</span><span class="p">):</span>
<span class="gp">... </span> <span class="n">MEMBERS</span> <span class="o">=</span> <span class="p">[</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="p">,</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="p">,</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrWString</span><span class="p">]</span>
<span class="gp">...</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">NDRTest</span><span class="o">.</span><span class="n">pack</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="s2">&quot;Test</span><span class="se">\x00</span><span class="s2">&quot;</span><span class="p">])</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span>
<span class="go">&#39;\x01\x00\x00\x00\x02\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00T\x00e\x00s\x00t\x00\x00\x00PP&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">NDRTest</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="go">[1, 2, u&#39;Test\x00&#39;]</span>
</pre></div>
</div>
<dl class="class">
<dt id="windows.rpc.ndr.NdrParameters">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrParameters</code><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrParameters"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrParameters" title="Permalink to this definition"></a></dt>
<dd><p>a class to pack NDR parameters together to performs RPC call, this class should be subclassed with
an attribute <code class="docutils literal notranslate"><span class="pre">MEMBERS</span></code> describing the members of the class</p>
</dd></dl>
<div class="section" id="ndr-stream">
<h3>13.3.1. NDR STREAM<a class="headerlink" href="#ndr-stream" title="Permalink to this headline"></a></h3>
<dl class="class">
<dt id="windows.rpc.ndr.NdrStream">
<em class="property">class </em><code class="descclassname">windows.rpc.ndr.</code><code class="descname">NdrStream</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrStream"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrStream" title="Permalink to this definition"></a></dt>
<dd><p>A stream of bytes used for NDR unpacking</p>
<dl class="method">
<dt id="windows.rpc.ndr.NdrStream.align">
<code class="descname">align</code><span class="sig-paren">(</span><em>size</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/windows/rpc/ndr.html#NdrStream.align"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#windows.rpc.ndr.NdrStream.align" title="Permalink to this definition"></a></dt>
<dd><p>Discard some bytes to align the remaining stream on <code class="docutils literal notranslate"><span class="pre">size</span></code></p>
</dd></dl>
</dd></dl>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">windows.rpc</span> <span class="kn">import</span> <span class="n">ndr</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">ndr</span><span class="o">.</span><span class="n">NdrStream</span><span class="p">(</span><span class="s2">&quot;AAAABBBBCCCC&quot;</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">hex</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="go">&#39;0x41414141&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">data</span>
<span class="go">&#39;BBBBCCCC&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">hex</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrShort</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="go">&#39;0x4242&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">data</span>
<span class="go">&#39;BBCCCC&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">align</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">data</span>
<span class="go">&#39;CCCC&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">hex</span><span class="p">(</span><span class="n">ndr</span><span class="o">.</span><span class="n">NdrLong</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="go">&#39;0x43434343&#39;</span>
</pre></div>
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<ul>
<li><a class="reference internal" href="#">13. <code class="docutils literal notranslate"><span class="pre">windows.rpc</span></code> – ALPC-based Windows RPC</a><ul>
<li><a class="reference internal" href="#rpcclient">13.1. RPCClient</a></li>
<li><a class="reference internal" href="#epmapper">13.2. Epmapper</a><ul>
<li><a class="reference internal" href="#find-alpc-endpoints">13.2.1. <code class="docutils literal notranslate"><span class="pre">find_alpc_endpoints()</span></code></a></li>
<li><a class="reference internal" href="#find-alpc-endpoint-and-connect">13.2.2. <code class="docutils literal notranslate"><span class="pre">find_alpc_endpoint_and_connect()</span></code></a></li>
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<li><a class="reference internal" href="#module-windows.rpc.ndr">13.3. Ndr</a><ul>
<li><a class="reference internal" href="#ndr-stream">13.3.1. NDR STREAM</a></li>
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