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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>uIP 1.0: uIP Address Resolution Protocol</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.6 --><div class="tabs"> <ul> <li><a href="main.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="classes.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="examples.html"><span>Examples</span></a></li> </ul></div><h1>uIP Address Resolution Protocol<br><small>[<a class="el" href="a00150.html">The uIP TCP/IP stack</a>]</small></h1><hr><a name="_details"></a><h2>Detailed Description</h2>The Address Resolution Protocol ARP is used for mapping between IP addresses and link level addresses such as the Ethernet MAC addresses. <p>ARP uses broadcast queries to ask for the link level address of a known IP address and the host which is configured with the IP address for which the query was meant, will respond with its link level address.<p><dl compact><dt><b>Note:</b></dt><dd>This ARP implementation only supports Ethernet. </dd></dl><p><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Files</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">file </td><td class="memItemRight" valign="bottom"><a class="el" href="a00139.html">uip_arp.h</a></td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Macros and definitions for the ARP module. <br></td></tr><p><tr><td class="memItemLeft" nowrap align="right" valign="top">file </td><td class="memItemRight" valign="bottom"><a class="el" href="a00138.html">uip_arp.c</a></td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Implementation of the ARP Address Resolution Protocol. <br></td></tr><p><tr><td colspan="2"><br><h2>Data Structures</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="a00090.html">uip_eth_hdr</a></td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">The Ethernet header. <a href="a00090.html#_details">More...</a><br></td></tr><tr><td colspan="2"><br><h2>Defines</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g3e1562e8a6de32268e5df92a52152f91"></a><!-- doxytag: member="uiparp::UIP_ETHTYPE_ARP" ref="g3e1562e8a6de32268e5df92a52152f91" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g3e1562e8a6de32268e5df92a52152f91">UIP_ETHTYPE_ARP</a> 0x0806</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g03d140db75de3d3cdfbbab1c4fed8d8d"></a><!-- doxytag: member="uiparp::UIP_ETHTYPE_IP" ref="g03d140db75de3d3cdfbbab1c4fed8d8d" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g03d140db75de3d3cdfbbab1c4fed8d8d">UIP_ETHTYPE_IP</a> 0x0800</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gbb558f3a9b1ec015e83c314aba694e35"></a><!-- doxytag: member="uiparp::UIP_ETHTYPE_IP6" ref="gbb558f3a9b1ec015e83c314aba694e35" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#gbb558f3a9b1ec015e83c314aba694e35">UIP_ETHTYPE_IP6</a> 0x86dd</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g737337d6a51e31b236c8233d024138a8"></a><!-- doxytag: member="uiparp::uip_arp_ipin" ref="g737337d6a51e31b236c8233d024138a8" args="()" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g737337d6a51e31b236c8233d024138a8">uip_arp_ipin</a>()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g7a7c46ffaba30477b8c9e3e61bd2e106"></a><!-- doxytag: member="uiparp::ARP_REQUEST" ref="g7a7c46ffaba30477b8c9e3e61bd2e106" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g7a7c46ffaba30477b8c9e3e61bd2e106">ARP_REQUEST</a> 1</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g06ba7b414e718081998f2814090debf1"></a><!-- doxytag: member="uiparp::ARP_REPLY" ref="g06ba7b414e718081998f2814090debf1" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g06ba7b414e718081998f2814090debf1">ARP_REPLY</a> 2</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gbb56b549f7ab4d86e1cc39b8afc70d1e"></a><!-- doxytag: member="uiparp::ARP_HWTYPE_ETH" ref="gbb56b549f7ab4d86e1cc39b8afc70d1e" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#gbb56b549f7ab4d86e1cc39b8afc70d1e">ARP_HWTYPE_ETH</a> 1</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g24f52ac52d6e714cb04a5aa01be3bdd0"></a><!-- doxytag: member="uiparp::BUF" ref="g24f52ac52d6e714cb04a5aa01be3bdd0" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g24f52ac52d6e714cb04a5aa01be3bdd0">BUF</a> ((struct arp_hdr *)&<a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[0])</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g9f2196e2705036869611962425e404bf"></a><!-- doxytag: member="uiparp::IPBUF" ref="g9f2196e2705036869611962425e404bf" args="" -->#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g9f2196e2705036869611962425e404bf">IPBUF</a> ((struct ethip_hdr *)&<a class="el" href="a00150.html#gb81e78f890dbbee50c533a9734b74fd9">uip_buf</a>[0])</td></tr><tr><td colspan="2"><br><h2>Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2d9d28afa353f662b9bb5234fc419f72"></a><!-- doxytag: member="uiparp::uip_arp_init" ref="g2d9d28afa353f662b9bb5234fc419f72" args="(void)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g2d9d28afa353f662b9bb5234fc419f72">uip_arp_init</a> (void)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize the ARP module. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g902c4a360134096224bc2655f623aa5f">uip_arp_arpin</a> (void)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">ARP processing for incoming ARP packets. <a href="#g902c4a360134096224bc2655f623aa5f"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g54b27e45df15e10a0eb1a3e3a91417d2">uip_arp_out</a> (void)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Prepend Ethernet header to an outbound IP packet and see if we need to send out an ARP request. <a href="#g54b27e45df15e10a0eb1a3e3a91417d2"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g058a8e6025f67b021862281f1911fcef">uip_arp_timer</a> (void)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Periodic ARP processing function. <a href="#g058a8e6025f67b021862281f1911fcef"></a><br></td></tr><tr><td colspan="2"><br><h2>Variables</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g499bb98a0b4ae9a98553ede81317606d"></a><!-- doxytag: member="uiparp::uip_ethaddr" ref="g499bb98a0b4ae9a98553ede81317606d" args="" --><a class="el" href="a00089.html">uip_eth_addr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00152.html#g499bb98a0b4ae9a98553ede81317606d">uip_ethaddr</a></td></tr></table><hr><h2>Function Documentation</h2><a class="anchor" name="g902c4a360134096224bc2655f623aa5f"></a><!-- doxytag: member="uip_arp.h::uip_arp_arpin" ref="g902c4a360134096224bc2655f623aa5f" args="(void)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void uip_arp_arpin </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">void </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr>⌨️ 快捷键说明
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