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<h1>NPF structures and definitions<br/>
<small>
[<a class="el" href="group__NPF.html">NPF driver internals manual</a>]</small>
</h1><table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structpacket__file__header.html">packet_file_header</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Header of a libpcap dump file.  <a href="structpacket__file__header.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsf__pkthdr.html">sf_pkthdr</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Header associated to a packet in the driver's buffer when the driver is in dump mode. Similar to the bpf_hdr structure, but simpler.  <a href="structsf__pkthdr.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__PACKET__OID__DATA.html">_PACKET_OID_DATA</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Structure containing an OID request.  <a href="struct__PACKET__OID__DATA.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__INTERNAL__REQUEST.html">_INTERNAL_REQUEST</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Stores an OID request.  <a href="struct__INTERNAL__REQUEST.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__PACKET__RESERVED.html">_PACKET_RESERVED</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Contains a NDIS packet.  <a href="struct__PACKET__RESERVED.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__DEVICE__EXTENSION.html">_DEVICE_EXTENSION</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Port device extension.  <a href="struct__DEVICE__EXTENSION.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct____CPU__Private__Data.html">__CPU_Private_Data</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Kernel buffer of each CPU.  <a href="struct____CPU__Private__Data.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct__OPEN__INSTANCE.html">_OPEN_INSTANCE</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Contains the state of a running instance of the NPF driver.  <a href="struct__OPEN__INSTANCE.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structPacketHeader.html">PacketHeader</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Structure prepended to each packet in the kernel buffer pool.  <a href="structPacketHeader.html#_details">More...</a><br/></td></tr>
<tr><td colspan="2"><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga8fc96cee4177a369a99de7026ebeba81">MAX_REQUESTS</a>&nbsp;&nbsp;&nbsp;32</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Maximum number of simultaneous IOCTL requests.  <a href="#ga8fc96cee4177a369a99de7026ebeba81"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga8463d2101446f74b83ed10006d772384">Packet_ALIGNMENT</a>&nbsp;&nbsp;&nbsp;sizeof(int)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Alignment macro. Defines the alignment size.  <a href="#ga8463d2101446f74b83ed10006d772384"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga6ad53095b69ed77878dc683754e3264a">Packet_WORDALIGN</a>(x)&nbsp;&nbsp;&nbsp;(((x)+(Packet_ALIGNMENT-1))&amp;~(Packet_ALIGNMENT-1))</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">even multiple of Packet_ALIGNMENT.  <a href="#ga6ad53095b69ed77878dc683754e3264a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga9cd2ca337001428aa9e1cb512a28ecc2">KERNEL_EVENT_NAMESPACE</a>&nbsp;&nbsp;&nbsp;L&quot;\\BaseNamedObjects\\&quot;</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gac93c0a6ad1d2a3143b1115bdab3ac04d">MODE_CAPT</a>&nbsp;&nbsp;&nbsp;0x0</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Capture working mode.  <a href="#gac93c0a6ad1d2a3143b1115bdab3ac04d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga503326906a62e96c147ae6af31fb5659">MODE_STAT</a>&nbsp;&nbsp;&nbsp;0x1</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Statistical working mode.  <a href="#ga503326906a62e96c147ae6af31fb5659"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga528e7e542cb1a028a10a3a318880dffb">MODE_MON</a>&nbsp;&nbsp;&nbsp;0x2</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Kernel monitoring mode.  <a href="#ga528e7e542cb1a028a10a3a318880dffb"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga89853f93dc8cc890b0665629d16d2831">MODE_DUMP</a>&nbsp;&nbsp;&nbsp;0x10</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Kernel dump working mode.  <a href="#ga89853f93dc8cc890b0665629d16d2831"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga4f6749b7708a411df2a3341a3fcef917">IMMEDIATE</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Immediate timeout. Forces a read call to return immediately.  <a href="#ga4f6749b7708a411df2a3341a3fcef917"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga0a110077bb4fcbcc75512d8988c90de8">NDIS_FLAGS_SKIP_LOOPBACK_W2K</a>&nbsp;&nbsp;&nbsp;0x400</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">This is an undocumented flag for NdisSetPacketFlags() that allows to disable loopback reception.  <a href="#ga0a110077bb4fcbcc75512d8988c90de8"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gafedcc0aa0cf5abe7b20c68eefdfcb126">TCPDUMP_MAGIC</a>&nbsp;&nbsp;&nbsp;0xa1b2c3d4</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Libpcap magic number. Used by programs like tcpdump to recognize a driver's generated dump file.  <a href="#gafedcc0aa0cf5abe7b20c68eefdfcb126"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gaac031371d41e21ff96e80409e05a7ddb">PCAP_VERSION_MAJOR</a>&nbsp;&nbsp;&nbsp;2</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Major libpcap version of the dump file. Used by programs like tcpdump to recognize a driver's generated dump file.  <a href="#gaac031371d41e21ff96e80409e05a7ddb"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga9c200b070c9f626d38184588b16849c2">PCAP_VERSION_MINOR</a>&nbsp;&nbsp;&nbsp;4</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Minor libpcap version of the dump file. Used by programs like tcpdump to recognize a driver's generated dump file.  <a href="#ga9c200b070c9f626d38184588b16849c2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga7ccc8974741059b5ae25231a56dbed09">NPF_DISABLE_LOOPBACK</a>&nbsp;&nbsp;&nbsp;1</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Tells the driver to drop the packets sent by itself. This is usefult when building applications like bridges.  <a href="#ga7ccc8974741059b5ae25231a56dbed09"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga4a60d1f215d5b2af2b3b86a0f2a90ae2">NPF_ENABLE_LOOPBACK</a>&nbsp;&nbsp;&nbsp;2</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Tells the driver to capture the packets sent by itself.  <a href="#ga4a60d1f215d5b2af2b3b86a0f2a90ae2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga7300b6880da1b61717e7ff815d579bf6">C_ASSERT</a>(a)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga048ba8dfabc6ac16c602a1ca6fe994fc">RESERVED</a>(_p)&nbsp;&nbsp;&nbsp;((<a class="el" href="struct__PACKET__RESERVED.html">PPACKET_RESERVED</a>)((_p)-&gt;ProtocolReserved))</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Macro to obtain a NDIS_PACKET from a PACKET_RESERVED.  <a href="#ga048ba8dfabc6ac16c602a1ca6fe994fc"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga652e6173ee1441712652d74a5533e042">TRANSMIT_PACKETS</a>&nbsp;&nbsp;&nbsp;256</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">of packets that can be transmitted at the same time or with a single call to NdisSendPackets.  <a href="#ga652e6173ee1441712652d74a5533e042"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gacabf25322566f3bcd1e564e4939f5821">EXIT_SUCCESS</a>(quantity)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Macro used in the I/O routines to return the control to user-mode with a success status.  <a href="#gacabf25322566f3bcd1e564e4939f5821"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gad6d1f5522a147ddeb7d9b11916acd50a">EXIT_FAILURE</a>(quantity)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Macro used in the I/O routines to return the control to user-mode with a failure status.  <a href="#gad6d1f5522a147ddeb7d9b11916acd50a"></a><br/></td></tr>
<tr><td colspan="2"><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__PACKET__OID__DATA.html">_PACKET_OID_DATA</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga0c7b0f53860e1de014069aad53987bc6">PACKET_OID_DATA</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Structure containing an OID request.  <a href="#ga0c7b0f53860e1de014069aad53987bc6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__PACKET__OID__DATA.html">_PACKET_OID_DATA</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gadf678e4006b707eb64a691e611975b22">PPACKET_OID_DATA</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__INTERNAL__REQUEST.html">_INTERNAL_REQUEST</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga0bee4ca4dc129822e19478f88d991a31">INTERNAL_REQUEST</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Stores an OID request.  <a href="#ga0bee4ca4dc129822e19478f88d991a31"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__INTERNAL__REQUEST.html">_INTERNAL_REQUEST</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga55591a7d14855359ed1e3995f7f025c3">PINTERNAL_REQUEST</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__PACKET__RESERVED.html">_PACKET_RESERVED</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga2225b3cfa793593a1849aa0652846a5c">PACKET_RESERVED</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Contains a NDIS packet.  <a href="#ga2225b3cfa793593a1849aa0652846a5c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__PACKET__RESERVED.html">_PACKET_RESERVED</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga375d9973bbbe748c9722e8f546beb10c">PPACKET_RESERVED</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__DEVICE__EXTENSION.html">_DEVICE_EXTENSION</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga5091b7a273db5d38a71df5293eb52ccf">DEVICE_EXTENSION</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Port device extension.  <a href="#ga5091b7a273db5d38a71df5293eb52ccf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__DEVICE__EXTENSION.html">_DEVICE_EXTENSION</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gac8ad25578be589c8352fc4e1a8a99be3">PDEVICE_EXTENSION</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct____CPU__Private__Data.html">__CPU_Private_Data</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga321d8c7f608d41e095ec3508cff10764">CpuPrivateData</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Kernel buffer of each CPU.  <a href="#ga321d8c7f608d41e095ec3508cff10764"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__OPEN__INSTANCE.html">_OPEN_INSTANCE</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gafeddf3a08e141d369532061f3f8cd939">OPEN_INSTANCE</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Contains the state of a running instance of the NPF driver.  <a href="#gafeddf3a08e141d369532061f3f8cd939"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct__OPEN__INSTANCE.html">_OPEN_INSTANCE</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gad3b7ff25cfe0e8fd50666782f85e76cb">POPEN_INSTANCE</a></td></tr>
<tr><td colspan="2"><h2>Enumerations</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gaa80226df1c5ee18b01580d23ed4f31cb">ADAPTER_BINDING_STATUS</a> { <a class="el" href="group__NPF__include.html#ggaa80226df1c5ee18b01580d23ed4f31cba6e4cdf9f09abf447cffdfd5058357822">ADAPTER_UNBOUND</a>, 
<a class="el" href="group__NPF__include.html#ggaa80226df1c5ee18b01580d23ed4f31cba3e0c0f314d2e9dc41c205ab44bf087bc">ADAPTER_BOUND</a>, 
<a class="el" href="group__NPF__include.html#ggaa80226df1c5ee18b01580d23ed4f31cbadc92e852ef35fac0f033487a3be66a93">ADAPTER_UNBINDING</a>
 }</td></tr>
<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga6259f706c0907d31a1476960233222c6">C_ASSERT</a> (sizeof(<a class="el" href="struct__PACKET__OID__DATA.html">PACKET_OID_DATA</a>)==12)</td></tr>
<tr><td colspan="2"><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">ULONG&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga980b14c18716a1788990f8e68fed9420">g_NCpu</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">NDIS_HANDLE&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga5d6fbe2176d19b191fa7aaac4d6d6bb5">g_NdisProtocolHandle</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct time_conv&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#ga8bd3dab633cae7a1a47c4ddb2705a31b">G_Start_Time</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">UINT&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__NPF__include.html#gab325d08691ab69e4f942f6a418a41db2">g_SendPacketFlags</a></td></tr>
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<hr/><h2>Define Documentation</h2>
<a class="anchor" id="ga7300b6880da1b61717e7ff815d579bf6"></a><!-- doxytag: member="Packet.h::C_ASSERT" ref="ga7300b6880da1b61717e7ff815d579bf6" args="(a)" -->
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          <td class="memname">#define C_ASSERT</td>
          <td>(</td>
          <td class="paramtype">a&nbsp;</td>
          <td class="paramname"></td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
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<p>Definition at line <a class="el" href="Packet_8h_source.html#l00133">133</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="gad6d1f5522a147ddeb7d9b11916acd50a"></a><!-- doxytag: member="Packet.h::EXIT_FAILURE" ref="gad6d1f5522a147ddeb7d9b11916acd50a" args="(quantity)" -->
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          <td class="memname">#define EXIT_FAILURE</td>
          <td>(</td>
          <td class="paramtype">quantity&nbsp;</td>
          <td class="paramname"></td>
          <td>&nbsp;)&nbsp;</td>
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<b>Value:</b><div class="fragment"><pre class="fragment">Irp-&gt;IoStatus.Information=quantity;\
    Irp-&gt;IoStatus.Status = STATUS_UNSUCCESSFUL;\
    IoCompleteRequest(Irp, IO_NO_INCREMENT);\
    <span class="keywordflow">return</span> STATUS_UNSUCCESSFUL;\
</pre></div>
<p>Macro used in the I/O routines to return the control to user-mode with a failure status. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00363">363</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="gacabf25322566f3bcd1e564e4939f5821"></a><!-- doxytag: member="Packet.h::EXIT_SUCCESS" ref="gacabf25322566f3bcd1e564e4939f5821" args="(quantity)" -->
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          <td class="memname">#define EXIT_SUCCESS</td>
          <td>(</td>
          <td class="paramtype">quantity&nbsp;</td>
          <td class="paramname"></td>
          <td>&nbsp;)&nbsp;</td>
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<b>Value:</b><div class="fragment"><pre class="fragment">Irp-&gt;IoStatus.Information=quantity;\
    Irp-&gt;IoStatus.Status = STATUS_SUCCESS;\
    IoCompleteRequest(Irp, IO_NO_INCREMENT);\
    <span class="keywordflow">return</span> STATUS_SUCCESS;\
</pre></div>
<p>Macro used in the I/O routines to return the control to user-mode with a success status. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00357">357</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga4f6749b7708a411df2a3341a3fcef917"></a><!-- doxytag: member="Packet.h::IMMEDIATE" ref="ga4f6749b7708a411df2a3341a3fcef917" args="" -->
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          <td class="memname">#define IMMEDIATE&nbsp;&nbsp;&nbsp;1</td>
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<p>Immediate timeout. Forces a read call to return immediately. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00087">87</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga9cd2ca337001428aa9e1cb512a28ecc2"></a><!-- doxytag: member="Packet.h::KERNEL_EVENT_NAMESPACE" ref="ga9cd2ca337001428aa9e1cb512a28ecc2" args="" -->
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          <td class="memname">#define KERNEL_EVENT_NAMESPACE&nbsp;&nbsp;&nbsp;L&quot;\\BaseNamedObjects\\&quot;</td>
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<p>Definition at line <a class="el" href="Packet_8h_source.html#l00077">77</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga8fc96cee4177a369a99de7026ebeba81"></a><!-- doxytag: member="Packet.h::MAX_REQUESTS" ref="ga8fc96cee4177a369a99de7026ebeba81" args="" -->
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          <td class="memname">#define MAX_REQUESTS&nbsp;&nbsp;&nbsp;32</td>
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<p>Maximum number of simultaneous IOCTL requests. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00071">71</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="gac93c0a6ad1d2a3143b1115bdab3ac04d"></a><!-- doxytag: member="Packet.h::MODE_CAPT" ref="gac93c0a6ad1d2a3143b1115bdab3ac04d" args="" -->
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          <td class="memname">#define MODE_CAPT&nbsp;&nbsp;&nbsp;0x0</td>
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<p>Capture working mode. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00081">81</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga89853f93dc8cc890b0665629d16d2831"></a><!-- doxytag: member="Packet.h::MODE_DUMP" ref="ga89853f93dc8cc890b0665629d16d2831" args="" -->
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          <td class="memname">#define MODE_DUMP&nbsp;&nbsp;&nbsp;0x10</td>
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<p>Kernel dump working mode. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00084">84</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga528e7e542cb1a028a10a3a318880dffb"></a><!-- doxytag: member="Packet.h::MODE_MON" ref="ga528e7e542cb1a028a10a3a318880dffb" args="" -->
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          <td class="memname">#define MODE_MON&nbsp;&nbsp;&nbsp;0x2</td>
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<p>Kernel monitoring mode. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00083">83</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga503326906a62e96c147ae6af31fb5659"></a><!-- doxytag: member="Packet.h::MODE_STAT" ref="ga503326906a62e96c147ae6af31fb5659" args="" -->
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          <td class="memname">#define MODE_STAT&nbsp;&nbsp;&nbsp;0x1</td>
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<p>Statistical working mode. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00082">82</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga0a110077bb4fcbcc75512d8988c90de8"></a><!-- doxytag: member="Packet.h::NDIS_FLAGS_SKIP_LOOPBACK_W2K" ref="ga0a110077bb4fcbcc75512d8988c90de8" args="" -->
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          <td class="memname">#define NDIS_FLAGS_SKIP_LOOPBACK_W2K&nbsp;&nbsp;&nbsp;0x400</td>
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<p>This is an undocumented flag for NdisSetPacketFlags() that allows to disable loopback reception. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00089">89</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga7ccc8974741059b5ae25231a56dbed09"></a><!-- doxytag: member="Packet.h::NPF_DISABLE_LOOPBACK" ref="ga7ccc8974741059b5ae25231a56dbed09" args="" -->
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          <td class="memname">#define NPF_DISABLE_LOOPBACK&nbsp;&nbsp;&nbsp;1</td>
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<p>Tells the driver to drop the packets sent by itself. This is usefult when building applications like bridges. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00098">98</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga4a60d1f215d5b2af2b3b86a0f2a90ae2"></a><!-- doxytag: member="Packet.h::NPF_ENABLE_LOOPBACK" ref="ga4a60d1f215d5b2af2b3b86a0f2a90ae2" args="" -->
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<p>Tells the driver to capture the packets sent by itself. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00099">99</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga8463d2101446f74b83ed10006d772384"></a><!-- doxytag: member="Packet.h::Packet_ALIGNMENT" ref="ga8463d2101446f74b83ed10006d772384" args="" -->
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          <td class="memname">#define Packet_ALIGNMENT&nbsp;&nbsp;&nbsp;sizeof(int)</td>
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<p>Alignment macro. Defines the alignment size. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00073">73</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga6ad53095b69ed77878dc683754e3264a"></a><!-- doxytag: member="Packet.h::Packet_WORDALIGN" ref="ga6ad53095b69ed77878dc683754e3264a" args="(x)" -->
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          <td class="memname">#define Packet_WORDALIGN</td>
          <td>(</td>
          <td class="paramtype">x&nbsp;</td>
          <td class="paramname"></td>
          <td>&nbsp;)&nbsp;</td>
          <td>&nbsp;&nbsp;&nbsp;(((x)+(Packet_ALIGNMENT-1))&amp;~(Packet_ALIGNMENT-1))</td>
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<p>even multiple of Packet_ALIGNMENT. </p>
<p>Alignment macro. Rounds up to the next </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00074">74</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="gaac031371d41e21ff96e80409e05a7ddb"></a><!-- doxytag: member="Packet.h::PCAP_VERSION_MAJOR" ref="gaac031371d41e21ff96e80409e05a7ddb" args="" -->
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          <td class="memname">#define PCAP_VERSION_MAJOR&nbsp;&nbsp;&nbsp;2</td>
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<p>Major libpcap version of the dump file. Used by programs like tcpdump to recognize a driver's generated dump file. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00094">94</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga9c200b070c9f626d38184588b16849c2"></a><!-- doxytag: member="Packet.h::PCAP_VERSION_MINOR" ref="ga9c200b070c9f626d38184588b16849c2" args="" -->
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<p>Minor libpcap version of the dump file. Used by programs like tcpdump to recognize a driver's generated dump file. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00095">95</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga048ba8dfabc6ac16c602a1ca6fe994fc"></a><!-- doxytag: member="Packet.h::RESERVED" ref="ga048ba8dfabc6ac16c602a1ca6fe994fc" args="(_p)" -->
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          <td class="memname">#define RESERVED</td>
          <td>(</td>
          <td class="paramtype">_p&nbsp;</td>
          <td class="paramname"></td>
          <td>&nbsp;)&nbsp;</td>
          <td>&nbsp;&nbsp;&nbsp;((<a class="el" href="struct__PACKET__RESERVED.html">PPACKET_RESERVED</a>)((_p)-&gt;ProtocolReserved))</td>
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<p>Macro to obtain a NDIS_PACKET from a PACKET_RESERVED. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00189">189</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="gafedcc0aa0cf5abe7b20c68eefdfcb126"></a><!-- doxytag: member="Packet.h::TCPDUMP_MAGIC" ref="gafedcc0aa0cf5abe7b20c68eefdfcb126" args="" -->
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<p>Libpcap magic number. Used by programs like tcpdump to recognize a driver's generated dump file. </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00093">93</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<a class="anchor" id="ga652e6173ee1441712652d74a5533e042"></a><!-- doxytag: member="Packet.h::TRANSMIT_PACKETS" ref="ga652e6173ee1441712652d74a5533e042" args="" -->
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<p>of packets that can be transmitted at the same time or with a single call to NdisSendPackets. </p>
<p>Maximum number of packets in the transmit packet pool. This value is an upper bound to the number </p>

<p>Definition at line <a class="el" href="Packet_8h_source.html#l00352">352</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<hr/><h2>Typedef Documentation</h2>
<a class="anchor" id="ga321d8c7f608d41e095ec3508cff10764"></a><!-- doxytag: member="Packet.h::CpuPrivateData" ref="ga321d8c7f608d41e095ec3508cff10764" args="" -->
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          <td class="memname">typedef struct <a class="el" href="struct____CPU__Private__Data.html">__CPU_Private_Data</a>
	 <a class="el" href="struct____CPU__Private__Data.html">CpuPrivateData</a></td>
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<p>Kernel buffer of each CPU. </p>
<p>Structure containing the kernel buffer (and other CPU related fields) used to capture packets. </p>

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<a class="anchor" id="ga5091b7a273db5d38a71df5293eb52ccf"></a><!-- doxytag: member="Packet.h::DEVICE_EXTENSION" ref="ga5091b7a273db5d38a71df5293eb52ccf" args="" -->
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          <td class="memname">typedef struct <a class="el" href="struct__DEVICE__EXTENSION.html">_DEVICE_EXTENSION</a>  <a class="el" href="struct__DEVICE__EXTENSION.html">DEVICE_EXTENSION</a></td>
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<p>Port device extension. </p>
<p>Structure containing some data relative to every adapter on which NPF is bound. </p>

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<a class="anchor" id="ga0bee4ca4dc129822e19478f88d991a31"></a><!-- doxytag: member="Packet.h::INTERNAL_REQUEST" ref="ga0bee4ca4dc129822e19478f88d991a31" args="" -->
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          <td class="memname">typedef struct <a class="el" href="struct__INTERNAL__REQUEST.html">_INTERNAL_REQUEST</a>  <a class="el" href="struct__INTERNAL__REQUEST.html">INTERNAL_REQUEST</a></td>
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<p>Stores an OID request. </p>
<p>This structure is used by the driver to perform OID query or set operations on the underlying NIC driver. The OID operations be performed usually only by network drivers, but NPF exports this mechanism to user-level applications through an IOCTL interface. The driver uses this structure to wrap a NDIS_REQUEST structure. This allows to handle correctly the callback structure of NdisRequest(), handling multiple requests and maintaining information about the IRPs to complete. </p>

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<a class="anchor" id="gafeddf3a08e141d369532061f3f8cd939"></a><!-- doxytag: member="Packet.h::OPEN_INSTANCE" ref="gafeddf3a08e141d369532061f3f8cd939" args="" -->
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<p>Contains the state of a running instance of the NPF driver. </p>
<p>This is the most important structure of NPF: it is used by almost all the functions of the driver. An <a class="el" href="struct__OPEN__INSTANCE.html" title="Contains the state of a running instance of the NPF driver.">_OPEN_INSTANCE</a> structure is associated with every user-level session, allowing concurrent access to the driver. </p>

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<a class="anchor" id="ga0c7b0f53860e1de014069aad53987bc6"></a><!-- doxytag: member="Packet.h::PACKET_OID_DATA" ref="ga0c7b0f53860e1de014069aad53987bc6" args="" -->
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<p>Structure containing an OID request. </p>
<p>It is used by the PacketRequest() function to send an OID to the interface card driver. It can be used, for example, to retrieve the status of the error counters on the adapter, its MAC address, the list of the multicast groups defined on it, and so on. </p>

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<a class="anchor" id="ga2225b3cfa793593a1849aa0652846a5c"></a><!-- doxytag: member="Packet.h::PACKET_RESERVED" ref="ga2225b3cfa793593a1849aa0652846a5c" args="" -->
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<p>Contains a NDIS packet. </p>
<p>The driver uses this structure to wrap a NDIS_PACKET structure. This allows to handle correctly the callback structure of NdisTransferData(), handling multiple requests and maintaining information about the IRPs to complete. </p>

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<a class="anchor" id="gac8ad25578be589c8352fc4e1a8a99be3"></a><!-- doxytag: member="Packet.h::PDEVICE_EXTENSION" ref="gac8ad25578be589c8352fc4e1a8a99be3" args="" -->
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<a class="anchor" id="ga55591a7d14855359ed1e3995f7f025c3"></a><!-- doxytag: member="Packet.h::PINTERNAL_REQUEST" ref="ga55591a7d14855359ed1e3995f7f025c3" args="" -->
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<a class="anchor" id="gad3b7ff25cfe0e8fd50666782f85e76cb"></a><!-- doxytag: member="Packet.h::POPEN_INSTANCE" ref="gad3b7ff25cfe0e8fd50666782f85e76cb" args="" -->
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<a class="anchor" id="gadf678e4006b707eb64a691e611975b22"></a><!-- doxytag: member="Packet.h::PPACKET_OID_DATA" ref="gadf678e4006b707eb64a691e611975b22" args="" -->
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<a class="anchor" id="ga375d9973bbbe748c9722e8f546beb10c"></a><!-- doxytag: member="Packet.h::PPACKET_RESERVED" ref="ga375d9973bbbe748c9722e8f546beb10c" args="" -->
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<hr/><h2>Enumeration Type Documentation</h2>
<a class="anchor" id="gaa80226df1c5ee18b01580d23ed4f31cb"></a><!-- doxytag: member="Packet.h::ADAPTER_BINDING_STATUS" ref="gaa80226df1c5ee18b01580d23ed4f31cb" args="" -->
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          <td class="memname">enum <a class="el" href="group__NPF__include.html#gaa80226df1c5ee18b01580d23ed4f31cb">ADAPTER_BINDING_STATUS</a></td>
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<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="ggaa80226df1c5ee18b01580d23ed4f31cba6e4cdf9f09abf447cffdfd5058357822"></a><!-- doxytag: member="ADAPTER_UNBOUND" ref="ggaa80226df1c5ee18b01580d23ed4f31cba6e4cdf9f09abf447cffdfd5058357822" args="" -->ADAPTER_UNBOUND</em>&nbsp;</td><td>
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<tr><td valign="top"><em><a class="anchor" id="ggaa80226df1c5ee18b01580d23ed4f31cba3e0c0f314d2e9dc41c205ab44bf087bc"></a><!-- doxytag: member="ADAPTER_BOUND" ref="ggaa80226df1c5ee18b01580d23ed4f31cba3e0c0f314d2e9dc41c205ab44bf087bc" args="" -->ADAPTER_BOUND</em>&nbsp;</td><td>
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<p>Definition at line <a class="el" href="Packet_8h_source.html#l00327">327</a> of file <a class="el" href="Packet_8h_source.html">Packet.h</a>.</p>

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<hr/><h2>Function Documentation</h2>
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<hr/><h2>Variable Documentation</h2>
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          <td class="memname">ULONG <a class="el" href="group__NPF__include.html#ga980b14c18716a1788990f8e68fed9420">g_NCpu</a></td>
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          <td class="memname">NDIS_HANDLE <a class="el" href="group__NPF__include.html#ga5d6fbe2176d19b191fa7aaac4d6d6bb5">g_NdisProtocolHandle</a></td>
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          <td class="memname">UINT <a class="el" href="group__NPF__include.html#gab325d08691ab69e4f942f6a418a41db2">g_SendPacketFlags</a></td>
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