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    33. 

  33. <h1>uip.h</h1><a href="a00424.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment"></span>
    34. 

  34. <a name="l00002"></a>00002 <span class="comment">/**</span>
    35. 

  35. <a name="l00003"></a>00003 <span class="comment"> * \addtogroup uip</span>
    36. 

  36. <a name="l00004"></a>00004 <span class="comment"> * @{</span>
    37. 

  37. <a name="l00005"></a>00005 <span class="comment"> */</span>
    38. 

  38. <a name="l00006"></a>00006 <span class="comment"></span>
    39. 

  39. <a name="l00007"></a>00007 <span class="comment">/**</span>
    40. 

  40. <a name="l00008"></a>00008 <span class="comment"> * \file</span>
    41. 

  41. <a name="l00009"></a>00009 <span class="comment"> * Header file for the uIP TCP/IP stack.</span>
    42. 

  42. <a name="l00010"></a>00010 <span class="comment"> * \author  Adam Dunkels &lt;adam@dunkels.com&gt;</span>
    43. 

  43. <a name="l00011"></a>00011 <span class="comment"> * \author  Julien Abeille &lt;jabeille@cisco.com&gt; (IPv6 related code)</span>
    44. 

  44. <a name="l00012"></a>00012 <span class="comment"> * \author  Mathilde Durvy &lt;mdurvy@cisco.com&gt; (IPv6 related code)</span>
    45. 

  45. <a name="l00013"></a>00013 <span class="comment"> *</span>
    46. 

  46. <a name="l00014"></a>00014 <span class="comment"> * The uIP TCP/IP stack header file contains definitions for a number</span>
    47. 

  47. <a name="l00015"></a>00015 <span class="comment"> * of C macros that are used by uIP programs as well as internal uIP</span>
    48. 

  48. <a name="l00016"></a>00016 <span class="comment"> * structures, TCP/IP header structures and function declarations.</span>
    49. 

  49. <a name="l00017"></a>00017 <span class="comment"> *</span>
    50. 

  50. <a name="l00018"></a>00018 <span class="comment"> */</span>
    51. 

  51. <a name="l00019"></a>00019 
    52. 

  52. <a name="l00020"></a>00020 <span class="comment">/*</span>
    53. 

  53. <a name="l00021"></a>00021 <span class="comment"> * Copyright (c) 2001-2003, Adam Dunkels.</span>
    54. 

  54. <a name="l00022"></a>00022 <span class="comment"> * All rights reserved.</span>
    55. 

  55. <a name="l00023"></a>00023 <span class="comment"> *</span>
    56. 

  56. <a name="l00024"></a>00024 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
    57. 

  57. <a name="l00025"></a>00025 <span class="comment"> * modification, are permitted provided that the following conditions</span>
    58. 

  58. <a name="l00026"></a>00026 <span class="comment"> * are met:</span>
    59. 

  59. <a name="l00027"></a>00027 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
    60. 

  60. <a name="l00028"></a>00028 <span class="comment"> *    notice, this list of conditions and the following disclaimer.</span>
    61. 

  61. <a name="l00029"></a>00029 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
    62. 

  62. <a name="l00030"></a>00030 <span class="comment"> *    notice, this list of conditions and the following disclaimer in the</span>
    63. 

  63. <a name="l00031"></a>00031 <span class="comment"> *    documentation and/or other materials provided with the distribution.</span>
    64. 

  64. <a name="l00032"></a>00032 <span class="comment"> * 3. The name of the author may not be used to endorse or promote</span>
    65. 

  65. <a name="l00033"></a>00033 <span class="comment"> *    products derived from this software without specific prior</span>
    66. 

  66. <a name="l00034"></a>00034 <span class="comment"> *    written permission.</span>
    67. 

  67. <a name="l00035"></a>00035 <span class="comment"> *</span>
    68. 

  68. <a name="l00036"></a>00036 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS&apos;&apos; AND ANY EXPRESS</span>
    69. 

  69. <a name="l00037"></a>00037 <span class="comment"> * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED</span>
    70. 

  70. <a name="l00038"></a>00038 <span class="comment"> * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span>
    71. 

  71. <a name="l00039"></a>00039 <span class="comment"> * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY</span>
    72. 

  72. <a name="l00040"></a>00040 <span class="comment"> * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL</span>
    73. 

  73. <a name="l00041"></a>00041 <span class="comment"> * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE</span>
    74. 

  74. <a name="l00042"></a>00042 <span class="comment"> * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span>
    75. 

  75. <a name="l00043"></a>00043 <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,</span>
    76. 

  76. <a name="l00044"></a>00044 <span class="comment"> * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</span>
    77. 

  77. <a name="l00045"></a>00045 <span class="comment"> * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
    78. 

  78. <a name="l00046"></a>00046 <span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
    79. 

  79. <a name="l00047"></a>00047 <span class="comment"> *</span>
    80. 

  80. <a name="l00048"></a>00048 <span class="comment"> * This file is part of the uIP TCP/IP stack.</span>
    81. 

  81. <a name="l00049"></a>00049 <span class="comment"> *</span>
    82. 

  82. <a name="l00050"></a>00050 <span class="comment"> * $Id: uip.h,v 1.35 2010/10/19 18:29:04 adamdunkels Exp $</span>
    83. 

  83. <a name="l00051"></a>00051 <span class="comment"> *</span>
    84. 

  84. <a name="l00052"></a>00052 <span class="comment"> */</span>
    85. 

  85. <a name="l00053"></a>00053 
    86. 

  86. <a name="l00054"></a>00054 <span class="preprocessor">#ifndef __UIP_H__</span>
    87. 

  87. <a name="l00055"></a>00055 <span class="preprocessor"></span><span class="preprocessor">#define __UIP_H__</span>
    88. 

  88. <a name="l00056"></a>00056 <span class="preprocessor"></span>
    89. 

  89. <a name="l00057"></a>00057 <span class="preprocessor">#include &quot;<a class="code" href="a00431.html" title="Configuration options for uIP.">net/uipopt.h</a>&quot;</span>
    90. 

  90. <a name="l00058"></a>00058 <span class="comment"></span>
    91. 

  91. <a name="l00059"></a>00059 <span class="comment">/**</span>
    92. 

  92. <a name="l00060"></a>00060 <span class="comment"> * Representation of an IP address.</span>
    93. 

  93. <a name="l00061"></a>00061 <span class="comment"> *</span>
    94. 

  94. <a name="l00062"></a>00062 <span class="comment"> */</span>
    95. 

  95. <a name="l00063"></a>00063 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    96. 

  96. <a name="l00064"></a>00064 <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keyword">union </span>uip_ip6addr_t {
    97. 

  97. <a name="l00065"></a>00065   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a>  u8[16];                 <span class="comment">/* Initializer, must come first!!! */</span>
    98. 

  98. <a name="l00066"></a>00066   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> u16[8];
    99. 

  99. <a name="l00067"></a>00067 } uip_ip6addr_t;
    100. 

  100. <a name="l00068"></a>00068 
    101. 

  101. <a name="l00069"></a>00069 <span class="keyword">typedef</span> uip_ip6addr_t <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a>;
    102. 

  102. <a name="l00070"></a>00070 <span class="preprocessor">#else </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    103. 

  103. <a name="l00071"></a><a class="code" href="a00106.html">00071</a> <span class="keyword">typedef</span> <span class="keyword">union </span><a class="code" href="a00106.html" title="Representation of an IP address.">uip_ip4addr_t</a> {
    104. 

  104. <a name="l00072"></a>00072   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a>  u8[4];                  <span class="comment">/* Initializer, must come first!!! */</span>
    105. 

  105. <a name="l00073"></a>00073   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> u16[2];
    106. 

  106. <a name="l00074"></a>00074 <span class="preprocessor">#if 0</span>
    107. 

  107. <a name="l00075"></a>00075 <span class="preprocessor"></span>  <a class="code" href="a01668.html#ga4c14294869aceba3ef9d4c0c302d0f33" title="The 32-bit unsigned data type.">u32_t</a> u32;
    108. 

  108. <a name="l00076"></a>00076 <span class="preprocessor">#endif</span>
    109. 

  109. <a name="l00077"></a>00077 <span class="preprocessor"></span>} <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ip4addr_t</a>;
    110. 

  110. <a name="l00078"></a>00078 <span class="keyword">typedef</span> <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ip4addr_t</a> <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a>;
    111. 

  111. <a name="l00079"></a>00079 <span class="preprocessor">#endif </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    112. 

  112. <a name="l00080"></a>00080 
    113. 

  113. <a name="l00081"></a>00081 
    114. 

  114. <a name="l00082"></a>00082 <span class="comment">/*---------------------------------------------------------------------------*/</span>
    115. 

  115. <a name="l00083"></a>00083 <span class="comment"></span>
    116. 

  116. <a name="l00084"></a>00084 <span class="comment">/** \brief 16 bit 802.15.4 address */</span>
    117. 

  117. <a name="l00085"></a><a class="code" href="a00090.html">00085</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="a00090.html" title="16 bit 802.15.4 address">uip_802154_shortaddr</a> {
    118. 

  118. <a name="l00086"></a>00086   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> addr[2];
    119. 

  119. <a name="l00087"></a>00087 } <a class="code" href="a00090.html" title="16 bit 802.15.4 address">uip_802154_shortaddr</a>;<span class="comment"></span>
    120. 

  120. <a name="l00088"></a>00088 <span class="comment">/** \brief 64 bit 802.15.4 address */</span>
    121. 

  121. <a name="l00089"></a><a class="code" href="a00089.html">00089</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="a00089.html" title="64 bit 802.15.4 address">uip_802154_longaddr</a> {
    122. 

  122. <a name="l00090"></a>00090   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> addr[8];
    123. 

  123. <a name="l00091"></a>00091 } <a class="code" href="a00089.html" title="64 bit 802.15.4 address">uip_802154_longaddr</a>;
    124. 

  124. <a name="l00092"></a>00092 <span class="comment"></span>
    125. 

  125. <a name="l00093"></a>00093 <span class="comment">/** \brief 802.11 address */</span>
    126. 

  126. <a name="l00094"></a><a class="code" href="a00088.html">00094</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="a00088.html" title="802.11 address">uip_80211_addr</a> {
    127. 

  127. <a name="l00095"></a>00095   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> addr[6];
    128. 

  128. <a name="l00096"></a>00096 } <a class="code" href="a00088.html" title="802.11 address">uip_80211_addr</a>;
    129. 

  129. <a name="l00097"></a>00097 <span class="comment"></span>
    130. 

  130. <a name="l00098"></a>00098 <span class="comment">/** \brief 802.3 address */</span>
    131. 

  131. <a name="l00099"></a><a class="code" href="a00102.html">00099</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="a00102.html" title="802.3 address">uip_eth_addr</a> {
    132. 

  132. <a name="l00100"></a>00100   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> addr[6];
    133. 

  133. <a name="l00101"></a>00101 } <a class="code" href="a00102.html" title="802.3 address">uip_eth_addr</a>;
    134. 

  134. <a name="l00102"></a>00102 
    135. 

  135. <a name="l00103"></a>00103 
    136. 

  136. <a name="l00104"></a>00104 <span class="preprocessor">#if UIP_CONF_LL_802154</span>
    137. 

  137. <a name="l00105"></a>00105 <span class="preprocessor"></span><span class="comment">/** \brief 802.15.4 address */</span>
    138. 

  138. <a name="l00106"></a>00106 <span class="keyword">typedef</span> <a class="code" href="a00089.html" title="64 bit 802.15.4 address">uip_802154_longaddr</a> <a class="code" href="a00102.html" title="802.3 address">uip_lladdr_t</a>;
    139. 

  139. <a name="l00107"></a>00107 <span class="preprocessor">#define UIP_802154_SHORTADDR_LEN 2</span>
    140. 

  140. <a name="l00108"></a>00108 <span class="preprocessor"></span><span class="preprocessor">#define UIP_802154_LONGADDR_LEN  8</span>
    141. 

  141. <a name="l00109"></a>00109 <span class="preprocessor"></span><span class="preprocessor">#define UIP_LLADDR_LEN UIP_802154_LONGADDR_LEN</span>
    142. 

  142. <a name="l00110"></a>00110 <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/*UIP_CONF_LL_802154*/</span>
    143. 

  143. <a name="l00111"></a>00111 <span class="preprocessor">#if UIP_CONF_LL_80211</span>
    144. 

  144. <a name="l00112"></a>00112 <span class="preprocessor"></span><span class="comment">/** \brief 802.11 address */</span>
    145. 

  145. <a name="l00113"></a>00113 <span class="keyword">typedef</span> <a class="code" href="a00088.html" title="802.11 address">uip_80211_addr</a> <a class="code" href="a00102.html" title="802.3 address">uip_lladdr_t</a>;
    146. 

  146. <a name="l00114"></a>00114 <span class="preprocessor">#define UIP_LLADDR_LEN 6</span>
    147. 

  147. <a name="l00115"></a>00115 <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/*UIP_CONF_LL_80211*/</span>
    148. 

  148. <a name="l00116"></a>00116 <span class="comment">/** \brief Ethernet address */</span>
    149. 

  149. <a name="l00117"></a><a class="code" href="a01684.html#ga239a73d412e4d6ce81473305919856cc">00117</a> <span class="keyword">typedef</span> <a class="code" href="a00102.html" title="802.3 address">uip_eth_addr</a> <a class="code" href="a00102.html" title="802.3 address">uip_lladdr_t</a>;
    150. 

  150. <a name="l00118"></a>00118 <span class="preprocessor">#define UIP_LLADDR_LEN 6</span>
    151. 

  151. <a name="l00119"></a>00119 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/*UIP_CONF_LL_80211*/</span>
    152. 

  152. <a name="l00120"></a>00120 <span class="preprocessor">#endif </span><span class="comment">/*UIP_CONF_LL_802154*/</span>
    153. 

  153. <a name="l00121"></a>00121 
    154. 

  154. <a name="l00122"></a>00122 <span class="preprocessor">#include &quot;<a class="code" href="a00395.html" title="Header for the Contiki/uIP interface.">net/tcpip.h</a>&quot;</span>
    155. 

  155. <a name="l00123"></a>00123 
    156. 

  156. <a name="l00124"></a>00124 <span class="comment">/*---------------------------------------------------------------------------*/</span>
    157. 

  157. <a name="l00125"></a>00125 <span class="comment">/* First, the functions that should be called from the</span>
    158. 

  158. <a name="l00126"></a>00126 <span class="comment"> * system. Initialization, the periodic timer, and incoming packets are</span>
    159. 

  159. <a name="l00127"></a>00127 <span class="comment"> * handled by the following three functions.</span>
    160. 

  160. <a name="l00128"></a>00128 <span class="comment"> */</span><span class="comment"></span>
    161. 

  161. <a name="l00129"></a>00129 <span class="comment">/**</span>
    162. 

  162. <a name="l00130"></a>00130 <span class="comment"> * \defgroup uipconffunc uIP configuration functions</span>
    163. 

  163. <a name="l00131"></a>00131 <span class="comment"> * @{</span>
    164. 

  164. <a name="l00132"></a>00132 <span class="comment"> *</span>
    165. 

  165. <a name="l00133"></a>00133 <span class="comment"> * The uIP configuration functions are used for setting run-time</span>
    166. 

  166. <a name="l00134"></a>00134 <span class="comment"> * parameters in uIP such as IP addresses.</span>
    167. 

  167. <a name="l00135"></a>00135 <span class="comment"> */</span>
    168. 

  168. <a name="l00136"></a>00136 <span class="comment"></span>
    169. 

  169. <a name="l00137"></a>00137 <span class="comment">/**</span>
    170. 

  170. <a name="l00138"></a>00138 <span class="comment"> * Set the IP address of this host.</span>
    171. 

  171. <a name="l00139"></a>00139 <span class="comment"> *</span>
    172. 

  172. <a name="l00140"></a>00140 <span class="comment"> * The IP address is represented as a 4-byte array where the first</span>
    173. 

  173. <a name="l00141"></a>00141 <span class="comment"> * octet of the IP address is put in the first member of the 4-byte</span>
    174. 

  174. <a name="l00142"></a>00142 <span class="comment"> * array.</span>
    175. 

  175. <a name="l00143"></a>00143 <span class="comment"> *</span>
    176. 

  176. <a name="l00144"></a>00144 <span class="comment"> * Example:</span>
    177. 

  177. <a name="l00145"></a>00145 <span class="comment"> \code</span>
    178. 

  178. <a name="l00146"></a>00146 <span class="comment"></span>
    179. 

  179. <a name="l00147"></a>00147 <span class="comment"> uip_ipaddr_t addr;</span>
    180. 

  180. <a name="l00148"></a>00148 <span class="comment"></span>
    181. 

  181. <a name="l00149"></a>00149 <span class="comment"> uip_ipaddr(&amp;addr, 192,168,1,2);</span>
    182. 

  182. <a name="l00150"></a>00150 <span class="comment"> uip_sethostaddr(&amp;addr);</span>
    183. 

  183. <a name="l00151"></a>00151 <span class="comment"> </span>
    184. 

  184. <a name="l00152"></a>00152 <span class="comment"> \endcode</span>
    185. 

  185. <a name="l00153"></a>00153 <span class="comment"> * \param addr A pointer to an IP address of type uip_ipaddr_t;</span>
    186. 

  186. <a name="l00154"></a>00154 <span class="comment"> *</span>
    187. 

  187. <a name="l00155"></a>00155 <span class="comment"> * \sa uip_ipaddr()</span>
    188. 

  188. <a name="l00156"></a>00156 <span class="comment"> *</span>
    189. 

  189. <a name="l00157"></a>00157 <span class="comment"> * \hideinitializer</span>
    190. 

  190. <a name="l00158"></a>00158 <span class="comment"> */</span>
    191. 

  191. <a name="l00159"></a><a class="code" href="a01572.html#ga12b467f314489259dd718228d0827a51">00159</a> <span class="preprocessor">#define uip_sethostaddr(addr) uip_ipaddr_copy(&amp;uip_hostaddr, (addr))</span>
    192. 

  192. <a name="l00160"></a>00160 <span class="preprocessor"></span><span class="comment"></span>
    193. 

  193. <a name="l00161"></a>00161 <span class="comment">/**</span>
    194. 

  194. <a name="l00162"></a>00162 <span class="comment"> * Get the IP address of this host.</span>
    195. 

  195. <a name="l00163"></a>00163 <span class="comment"> *</span>
    196. 

  196. <a name="l00164"></a>00164 <span class="comment"> * The IP address is represented as a 4-byte array where the first</span>
    197. 

  197. <a name="l00165"></a>00165 <span class="comment"> * octet of the IP address is put in the first member of the 4-byte</span>
    198. 

  198. <a name="l00166"></a>00166 <span class="comment"> * array.</span>
    199. 

  199. <a name="l00167"></a>00167 <span class="comment"> *</span>
    200. 

  200. <a name="l00168"></a>00168 <span class="comment"> * Example:</span>
    201. 

  201. <a name="l00169"></a>00169 <span class="comment"> \code</span>
    202. 

  202. <a name="l00170"></a>00170 <span class="comment"> uip_ipaddr_t hostaddr;</span>
    203. 

  203. <a name="l00171"></a>00171 <span class="comment"></span>
    204. 

  204. <a name="l00172"></a>00172 <span class="comment"> uip_gethostaddr(&amp;hostaddr);</span>
    205. 

  205. <a name="l00173"></a>00173 <span class="comment"> \endcode</span>
    206. 

  206. <a name="l00174"></a>00174 <span class="comment"> * \param addr A pointer to a uip_ipaddr_t variable that will be</span>
    207. 

  207. <a name="l00175"></a>00175 <span class="comment"> * filled in with the currently configured IP address.</span>
    208. 

  208. <a name="l00176"></a>00176 <span class="comment"> *</span>
    209. 

  209. <a name="l00177"></a>00177 <span class="comment"> * \hideinitializer</span>
    210. 

  210. <a name="l00178"></a>00178 <span class="comment"> */</span>
    211. 

  211. <a name="l00179"></a><a class="code" href="a01572.html#ga20bc87e5c063c3f4b01547be6e5a0148">00179</a> <span class="preprocessor">#define uip_gethostaddr(addr) uip_ipaddr_copy((addr), &amp;uip_hostaddr)</span>
    212. 

  212. <a name="l00180"></a>00180 <span class="preprocessor"></span><span class="comment"></span>
    213. 

  213. <a name="l00181"></a>00181 <span class="comment">/**</span>
    214. 

  214. <a name="l00182"></a>00182 <span class="comment"> * Set the default router&apos;s IP address.</span>
    215. 

  215. <a name="l00183"></a>00183 <span class="comment"> *</span>
    216. 

  216. <a name="l00184"></a>00184 <span class="comment"> * \param addr A pointer to a uip_ipaddr_t variable containing the IP</span>
    217. 

  217. <a name="l00185"></a>00185 <span class="comment"> * address of the default router.</span>
    218. 

  218. <a name="l00186"></a>00186 <span class="comment"> *</span>
    219. 

  219. <a name="l00187"></a>00187 <span class="comment"> * \sa uip_ipaddr()</span>
    220. 

  220. <a name="l00188"></a>00188 <span class="comment"> *</span>
    221. 

  221. <a name="l00189"></a>00189 <span class="comment"> * \hideinitializer</span>
    222. 

  222. <a name="l00190"></a>00190 <span class="comment"> */</span>
    223. 

  223. <a name="l00191"></a><a class="code" href="a01572.html#ga41d37ea1e3bd24f7b51e9409aceaaa80">00191</a> <span class="preprocessor">#define uip_setdraddr(addr) uip_ipaddr_copy(&amp;uip_draddr, (addr))</span>
    224. 

  224. <a name="l00192"></a>00192 <span class="preprocessor"></span><span class="comment"></span>
    225. 

  225. <a name="l00193"></a>00193 <span class="comment">/**</span>
    226. 

  226. <a name="l00194"></a>00194 <span class="comment"> * Set the netmask.</span>
    227. 

  227. <a name="l00195"></a>00195 <span class="comment"> *</span>
    228. 

  228. <a name="l00196"></a>00196 <span class="comment"> * \param addr A pointer to a uip_ipaddr_t variable containing the IP</span>
    229. 

  229. <a name="l00197"></a>00197 <span class="comment"> * address of the netmask.</span>
    230. 

  230. <a name="l00198"></a>00198 <span class="comment"> *</span>
    231. 

  231. <a name="l00199"></a>00199 <span class="comment"> * \sa uip_ipaddr()</span>
    232. 

  232. <a name="l00200"></a>00200 <span class="comment"> *</span>
    233. 

  233. <a name="l00201"></a>00201 <span class="comment"> * \hideinitializer</span>
    234. 

  234. <a name="l00202"></a>00202 <span class="comment"> */</span>
    235. 

  235. <a name="l00203"></a><a class="code" href="a01572.html#gaeb79c914cf137e6d27fd7583e5a66679">00203</a> <span class="preprocessor">#define uip_setnetmask(addr) uip_ipaddr_copy(&amp;uip_netmask, (addr))</span>
    236. 

  236. <a name="l00204"></a>00204 <span class="preprocessor"></span>
    237. 

  237. <a name="l00205"></a>00205 <span class="comment"></span>
    238. 

  238. <a name="l00206"></a>00206 <span class="comment">/**</span>
    239. 

  239. <a name="l00207"></a>00207 <span class="comment"> * Get the default router&apos;s IP address.</span>
    240. 

  240. <a name="l00208"></a>00208 <span class="comment"> *</span>
    241. 

  241. <a name="l00209"></a>00209 <span class="comment"> * \param addr A pointer to a uip_ipaddr_t variable that will be</span>
    242. 

  242. <a name="l00210"></a>00210 <span class="comment"> * filled in with the IP address of the default router.</span>
    243. 

  243. <a name="l00211"></a>00211 <span class="comment"> *</span>
    244. 

  244. <a name="l00212"></a>00212 <span class="comment"> * \hideinitializer</span>
    245. 

  245. <a name="l00213"></a>00213 <span class="comment"> */</span>
    246. 

  246. <a name="l00214"></a><a class="code" href="a01572.html#gad8e8bc9bc0e2ea4a24a8a024fd3a7f7c">00214</a> <span class="preprocessor">#define uip_getdraddr(addr) uip_ipaddr_copy((addr), &amp;uip_draddr)</span>
    247. 

  247. <a name="l00215"></a>00215 <span class="preprocessor"></span><span class="comment"></span>
    248. 

  248. <a name="l00216"></a>00216 <span class="comment">/**</span>
    249. 

  249. <a name="l00217"></a>00217 <span class="comment"> * Get the netmask.</span>
    250. 

  250. <a name="l00218"></a>00218 <span class="comment"> *</span>
    251. 

  251. <a name="l00219"></a>00219 <span class="comment"> * \param addr A pointer to a uip_ipaddr_t variable that will be</span>
    252. 

  252. <a name="l00220"></a>00220 <span class="comment"> * filled in with the value of the netmask.</span>
    253. 

  253. <a name="l00221"></a>00221 <span class="comment"> *</span>
    254. 

  254. <a name="l00222"></a>00222 <span class="comment"> * \hideinitializer</span>
    255. 

  255. <a name="l00223"></a>00223 <span class="comment"> */</span>
    256. 

  256. <a name="l00224"></a><a class="code" href="a01572.html#ga5323320b7316647042016f17c4e881be">00224</a> <span class="preprocessor">#define uip_getnetmask(addr) uip_ipaddr_copy((addr), &amp;uip_netmask)</span>
    257. 

  257. <a name="l00225"></a>00225 <span class="preprocessor"></span><span class="comment"></span>
    258. 

  258. <a name="l00226"></a>00226 <span class="comment">/** @} */</span>
    259. 

  259. <a name="l00227"></a>00227 <span class="comment"></span>
    260. 

  260. <a name="l00228"></a>00228 <span class="comment">/**</span>
    261. 

  261. <a name="l00229"></a>00229 <span class="comment"> * \defgroup uipinit uIP initialization functions</span>
    262. 

  262. <a name="l00230"></a>00230 <span class="comment"> * @{</span>
    263. 

  263. <a name="l00231"></a>00231 <span class="comment"> *</span>
    264. 

  264. <a name="l00232"></a>00232 <span class="comment"> * The uIP initialization functions are used for booting uIP.</span>
    265. 

  265. <a name="l00233"></a>00233 <span class="comment"> */</span>
    266. 

  266. <a name="l00234"></a>00234 <span class="comment"></span>
    267. 

  267. <a name="l00235"></a>00235 <span class="comment">/**</span>
    268. 

  268. <a name="l00236"></a>00236 <span class="comment"> * uIP initialization function.</span>
    269. 

  269. <a name="l00237"></a>00237 <span class="comment"> *</span>
    270. 

  270. <a name="l00238"></a>00238 <span class="comment"> * This function should be called at boot up to initilize the uIP</span>
    271. 

  271. <a name="l00239"></a>00239 <span class="comment"> * TCP/IP stack.</span>
    272. 

  272. <a name="l00240"></a>00240 <span class="comment"> */</span>
    273. 

  273. <a name="l00241"></a>00241 <span class="keywordtype">void</span> <a class="code" href="a01684.html#gac48ed5f0d27721ef62a3ed02a5ad8d2e" title="uIP initialization function.">uip_init</a>(<span class="keywordtype">void</span>);
    274. 

  274. <a name="l00242"></a>00242 <span class="comment"></span>
    275. 

  275. <a name="l00243"></a>00243 <span class="comment">/**</span>
    276. 

  276. <a name="l00244"></a>00244 <span class="comment"> * uIP initialization function.</span>
    277. 

  277. <a name="l00245"></a>00245 <span class="comment"> *</span>
    278. 

  278. <a name="l00246"></a>00246 <span class="comment"> * This function may be used at boot time to set the initial ip_id.</span>
    279. 

  279. <a name="l00247"></a>00247 <span class="comment"> */</span>
    280. 

  280. <a name="l00248"></a>00248 <span class="keywordtype">void</span> <a class="code" href="a01684.html#ga22f140b02c354dfebcc7ad481c3bcd68" title="uIP initialization function.">uip_setipid</a>(<a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <span class="keywordtype">id</span>);
    281. 

  281. <a name="l00249"></a>00249 <span class="comment"></span>
    282. 

  282. <a name="l00250"></a>00250 <span class="comment">/** @} */</span>
    283. 

  283. <a name="l00251"></a>00251 <span class="comment"></span>
    284. 

  284. <a name="l00252"></a>00252 <span class="comment">/**</span>
    285. 

  285. <a name="l00253"></a>00253 <span class="comment"> * \defgroup uipdevfunc uIP device driver functions</span>
    286. 

  286. <a name="l00254"></a>00254 <span class="comment"> * @{</span>
    287. 

  287. <a name="l00255"></a>00255 <span class="comment"> *</span>
    288. 

  288. <a name="l00256"></a>00256 <span class="comment"> * These functions are used by a network device driver for interacting</span>
    289. 

  289. <a name="l00257"></a>00257 <span class="comment"> * with uIP.</span>
    290. 

  290. <a name="l00258"></a>00258 <span class="comment"> */</span>
    291. 

  291. <a name="l00259"></a>00259 <span class="comment"></span>
    292. 

  292. <a name="l00260"></a>00260 <span class="comment">/**</span>
    293. 

  293. <a name="l00261"></a>00261 <span class="comment"> * Process an incoming packet.</span>
    294. 

  294. <a name="l00262"></a>00262 <span class="comment"> *</span>
    295. 

  295. <a name="l00263"></a>00263 <span class="comment"> * This function should be called when the device driver has received</span>
    296. 

  296. <a name="l00264"></a>00264 <span class="comment"> * a packet from the network. The packet from the device driver must</span>
    297. 

  297. <a name="l00265"></a>00265 <span class="comment"> * be present in the uip_buf buffer, and the length of the packet</span>
    298. 

  298. <a name="l00266"></a>00266 <span class="comment"> * should be placed in the uip_len variable.</span>
    299. 

  299. <a name="l00267"></a>00267 <span class="comment"> *</span>
    300. 

  300. <a name="l00268"></a>00268 <span class="comment"> * When the function returns, there may be an outbound packet placed</span>
    301. 

  301. <a name="l00269"></a>00269 <span class="comment"> * in the uip_buf packet buffer. If so, the uip_len variable is set to</span>
    302. 

  302. <a name="l00270"></a>00270 <span class="comment"> * the length of the packet. If no packet is to be sent out, the</span>
    303. 

  303. <a name="l00271"></a>00271 <span class="comment"> * uip_len variable is set to 0.</span>
    304. 

  304. <a name="l00272"></a>00272 <span class="comment"> *</span>
    305. 

  305. <a name="l00273"></a>00273 <span class="comment"> * The usual way of calling the function is presented by the source</span>
    306. 

  306. <a name="l00274"></a>00274 <span class="comment"> * code below.</span>
    307. 

  307. <a name="l00275"></a>00275 <span class="comment"> \code</span>
    308. 

  308. <a name="l00276"></a>00276 <span class="comment"> uip_len = devicedriver_poll();</span>
    309. 

  309. <a name="l00277"></a>00277 <span class="comment"> if(uip_len &gt; 0) {</span>
    310. 

  310. <a name="l00278"></a>00278 <span class="comment"> uip_input();</span>
    311. 

  311. <a name="l00279"></a>00279 <span class="comment"> if(uip_len &gt; 0) {</span>
    312. 

  312. <a name="l00280"></a>00280 <span class="comment"> devicedriver_send();</span>
    313. 

  313. <a name="l00281"></a>00281 <span class="comment"> }</span>
    314. 

  314. <a name="l00282"></a>00282 <span class="comment"> }</span>
    315. 

  315. <a name="l00283"></a>00283 <span class="comment"> \endcode</span>
    316. 

  316. <a name="l00284"></a>00284 <span class="comment"> *</span>
    317. 

  317. <a name="l00285"></a>00285 <span class="comment"> * \note If you are writing a uIP device driver that needs ARP</span>
    318. 

  318. <a name="l00286"></a>00286 <span class="comment"> * (Address Resolution Protocol), e.g., when running uIP over</span>
    319. 

  319. <a name="l00287"></a>00287 <span class="comment"> * Ethernet, you will need to call the uIP ARP code before calling</span>
    320. 

  320. <a name="l00288"></a>00288 <span class="comment"> * this function:</span>
    321. 

  321. <a name="l00289"></a>00289 <span class="comment"> \code</span>
    322. 

  322. <a name="l00290"></a>00290 <span class="comment"> #define BUF ((struct uip_eth_hdr *)&amp;uip_buf[0])</span>
    323. 

  323. <a name="l00291"></a>00291 <span class="comment"> uip_len = ethernet_devicedrver_poll();</span>
    324. 

  324. <a name="l00292"></a>00292 <span class="comment"> if(uip_len &gt; 0) {</span>
    325. 

  325. <a name="l00293"></a>00293 <span class="comment"> if(BUF-&gt;type == UIP_HTONS(UIP_ETHTYPE_IP)) {</span>
    326. 

  326. <a name="l00294"></a>00294 <span class="comment"> uip_arp_ipin();</span>
    327. 

  327. <a name="l00295"></a>00295 <span class="comment"> uip_input();</span>
    328. 

  328. <a name="l00296"></a>00296 <span class="comment"> if(uip_len &gt; 0) {</span>
    329. 

  329. <a name="l00297"></a>00297 <span class="comment"> uip_arp_out();</span>
    330. 

  330. <a name="l00298"></a>00298 <span class="comment"> ethernet_devicedriver_send();</span>
    331. 

  331. <a name="l00299"></a>00299 <span class="comment"> }</span>
    332. 

  332. <a name="l00300"></a>00300 <span class="comment"> } else if(BUF-&gt;type == UIP_HTONS(UIP_ETHTYPE_ARP)) {</span>
    333. 

  333. <a name="l00301"></a>00301 <span class="comment"> uip_arp_arpin();</span>
    334. 

  334. <a name="l00302"></a>00302 <span class="comment"> if(uip_len &gt; 0) {</span>
    335. 

  335. <a name="l00303"></a>00303 <span class="comment"> ethernet_devicedriver_send();</span>
    336. 

  336. <a name="l00304"></a>00304 <span class="comment"> }</span>
    337. 

  337. <a name="l00305"></a>00305 <span class="comment"> }</span>
    338. 

  338. <a name="l00306"></a>00306 <span class="comment"> \endcode</span>
    339. 

  339. <a name="l00307"></a>00307 <span class="comment"> *</span>
    340. 

  340. <a name="l00308"></a>00308 <span class="comment"> * \hideinitializer</span>
    341. 

  341. <a name="l00309"></a>00309 <span class="comment"> */</span>
    342. 

  342. <a name="l00310"></a><a class="code" href="a01574.html#gaa4360412ee9350fba725f98a137169fe">00310</a> <span class="preprocessor">#define uip_input()        uip_process(UIP_DATA)</span>
    343. 

  343. <a name="l00311"></a>00311 <span class="preprocessor"></span>
    344. 

  344. <a name="l00312"></a>00312 <span class="comment"></span>
    345. 

  345. <a name="l00313"></a>00313 <span class="comment">/**</span>
    346. 

  346. <a name="l00314"></a>00314 <span class="comment"> * Periodic processing for a connection identified by its number.</span>
    347. 

  347. <a name="l00315"></a>00315 <span class="comment"> *</span>
    348. 

  348. <a name="l00316"></a>00316 <span class="comment"> * This function does the necessary periodic processing (timers,</span>
    349. 

  349. <a name="l00317"></a>00317 <span class="comment"> * polling) for a uIP TCP conneciton, and should be called when the</span>
    350. 

  350. <a name="l00318"></a>00318 <span class="comment"> * periodic uIP timer goes off. It should be called for every</span>
    351. 

  351. <a name="l00319"></a>00319 <span class="comment"> * connection, regardless of whether they are open of closed.</span>
    352. 

  352. <a name="l00320"></a>00320 <span class="comment"> *</span>
    353. 

  353. <a name="l00321"></a>00321 <span class="comment"> * When the function returns, it may have an outbound packet waiting</span>
    354. 

  354. <a name="l00322"></a>00322 <span class="comment"> * for service in the uIP packet buffer, and if so the uip_len</span>
    355. 

  355. <a name="l00323"></a>00323 <span class="comment"> * variable is set to a value larger than zero. The device driver</span>
    356. 

  356. <a name="l00324"></a>00324 <span class="comment"> * should be called to send out the packet.</span>
    357. 

  357. <a name="l00325"></a>00325 <span class="comment"> *</span>
    358. 

  358. <a name="l00326"></a>00326 <span class="comment"> * The usual way of calling the function is through a for() loop like</span>
    359. 

  359. <a name="l00327"></a>00327 <span class="comment"> * this:</span>
    360. 

  360. <a name="l00328"></a>00328 <span class="comment"> \code</span>
    361. 

  361. <a name="l00329"></a>00329 <span class="comment"> for(i = 0; i &lt; UIP_CONNS; ++i) {</span>
    362. 

  362. <a name="l00330"></a>00330 <span class="comment"> uip_periodic(i);</span>
    363. 

  363. <a name="l00331"></a>00331 <span class="comment"> if(uip_len &gt; 0) {</span>
    364. 

  364. <a name="l00332"></a>00332 <span class="comment"> devicedriver_send();</span>
    365. 

  365. <a name="l00333"></a>00333 <span class="comment"> }</span>
    366. 

  366. <a name="l00334"></a>00334 <span class="comment"> }</span>
    367. 

  367. <a name="l00335"></a>00335 <span class="comment"> \endcode</span>
    368. 

  368. <a name="l00336"></a>00336 <span class="comment"> *</span>
    369. 

  369. <a name="l00337"></a>00337 <span class="comment"> * \note If you are writing a uIP device driver that needs ARP</span>
    370. 

  370. <a name="l00338"></a>00338 <span class="comment"> * (Address Resolution Protocol), e.g., when running uIP over</span>
    371. 

  371. <a name="l00339"></a>00339 <span class="comment"> * Ethernet, you will need to call the uip_arp_out() function before</span>
    372. 

  372. <a name="l00340"></a>00340 <span class="comment"> * calling the device driver:</span>
    373. 

  373. <a name="l00341"></a>00341 <span class="comment"> \code</span>
    374. 

  374. <a name="l00342"></a>00342 <span class="comment"> for(i = 0; i &lt; UIP_CONNS; ++i) {</span>
    375. 

  375. <a name="l00343"></a>00343 <span class="comment"> uip_periodic(i);</span>
    376. 

  376. <a name="l00344"></a>00344 <span class="comment"> if(uip_len &gt; 0) {</span>
    377. 

  377. <a name="l00345"></a>00345 <span class="comment"> uip_arp_out();</span>
    378. 

  378. <a name="l00346"></a>00346 <span class="comment"> ethernet_devicedriver_send();</span>
    379. 

  379. <a name="l00347"></a>00347 <span class="comment"> }</span>
    380. 

  380. <a name="l00348"></a>00348 <span class="comment"> }</span>
    381. 

  381. <a name="l00349"></a>00349 <span class="comment"> \endcode</span>
    382. 

  382. <a name="l00350"></a>00350 <span class="comment"> *</span>
    383. 

  383. <a name="l00351"></a>00351 <span class="comment"> * \param conn The number of the connection which is to be periodically polled.</span>
    384. 

  384. <a name="l00352"></a>00352 <span class="comment"> *</span>
    385. 

  385. <a name="l00353"></a>00353 <span class="comment"> * \hideinitializer</span>
    386. 

  386. <a name="l00354"></a>00354 <span class="comment"> */</span>
    387. 

  387. <a name="l00355"></a>00355 <span class="preprocessor">#if UIP_TCP</span>
    388. 

  388. <a name="l00356"></a>00356 <span class="preprocessor"></span><span class="preprocessor">#define uip_periodic(conn) do { uip_conn = &amp;uip_conns[conn];    \</span>
    389. 

  389. <a name="l00357"></a>00357 <span class="preprocessor">    uip_process(UIP_TIMER); } while (0)</span>
    390. 

  390. <a name="l00358"></a>00358 <span class="preprocessor"></span><span class="comment"></span>
    391. 

  391. <a name="l00359"></a>00359 <span class="comment">/**</span>
    392. 

  392. <a name="l00360"></a>00360 <span class="comment"> *</span>
    393. 

  393. <a name="l00361"></a>00361 <span class="comment"> *</span>
    394. 

  394. <a name="l00362"></a>00362 <span class="comment"> */</span>
    395. 

  395. <a name="l00363"></a>00363 <span class="preprocessor">#define uip_conn_active(conn) (uip_conns[conn].tcpstateflags != UIP_CLOSED)</span>
    396. 

  396. <a name="l00364"></a>00364 <span class="preprocessor"></span><span class="comment"></span>
    397. 

  397. <a name="l00365"></a>00365 <span class="comment">/**</span>
    398. 

  398. <a name="l00366"></a>00366 <span class="comment"> * Perform periodic processing for a connection identified by a pointer</span>
    399. 

  399. <a name="l00367"></a>00367 <span class="comment"> * to its structure.</span>
    400. 

  400. <a name="l00368"></a>00368 <span class="comment"> *</span>
    401. 

  401. <a name="l00369"></a>00369 <span class="comment"> * Same as uip_periodic() but takes a pointer to the actual uip_conn</span>
    402. 

  402. <a name="l00370"></a>00370 <span class="comment"> * struct instead of an integer as its argument. This function can be</span>
    403. 

  403. <a name="l00371"></a>00371 <span class="comment"> * used to force periodic processing of a specific connection.</span>
    404. 

  404. <a name="l00372"></a>00372 <span class="comment"> *</span>
    405. 

  405. <a name="l00373"></a>00373 <span class="comment"> * \param conn A pointer to the uip_conn struct for the connection to</span>
    406. 

  406. <a name="l00374"></a>00374 <span class="comment"> * be processed.</span>
    407. 

  407. <a name="l00375"></a>00375 <span class="comment"> *</span>
    408. 

  408. <a name="l00376"></a>00376 <span class="comment"> * \hideinitializer</span>
    409. 

  409. <a name="l00377"></a>00377 <span class="comment"> */</span>
    410. 

  410. <a name="l00378"></a>00378 <span class="preprocessor">#define uip_periodic_conn(conn) do { uip_conn = conn;   \</span>
    411. 

  411. <a name="l00379"></a>00379 <span class="preprocessor">    uip_process(UIP_TIMER); } while (0)</span>
    412. 

  412. <a name="l00380"></a>00380 <span class="preprocessor"></span><span class="comment"></span>
    413. 

  413. <a name="l00381"></a>00381 <span class="comment">/**</span>
    414. 

  414. <a name="l00382"></a>00382 <span class="comment"> * Request that a particular connection should be polled.</span>
    415. 

  415. <a name="l00383"></a>00383 <span class="comment"> *</span>
    416. 

  416. <a name="l00384"></a>00384 <span class="comment"> * Similar to uip_periodic_conn() but does not perform any timer</span>
    417. 

  417. <a name="l00385"></a>00385 <span class="comment"> * processing. The application is polled for new data.</span>
    418. 

  418. <a name="l00386"></a>00386 <span class="comment"> *</span>
    419. 

  419. <a name="l00387"></a>00387 <span class="comment"> * \param conn A pointer to the uip_conn struct for the connection to</span>
    420. 

  420. <a name="l00388"></a>00388 <span class="comment"> * be processed.</span>
    421. 

  421. <a name="l00389"></a>00389 <span class="comment"> *</span>
    422. 

  422. <a name="l00390"></a>00390 <span class="comment"> * \hideinitializer</span>
    423. 

  423. <a name="l00391"></a>00391 <span class="comment"> */</span>
    424. 

  424. <a name="l00392"></a>00392 <span class="preprocessor">#define uip_poll_conn(conn) do { uip_conn = conn;       \</span>
    425. 

  425. <a name="l00393"></a>00393 <span class="preprocessor">    uip_process(UIP_POLL_REQUEST); } while (0)</span>
    426. 

  426. <a name="l00394"></a>00394 <span class="preprocessor"></span>
    427. 

  427. <a name="l00395"></a>00395 <span class="preprocessor">#endif </span><span class="comment">/* UIP_TCP */</span>
    428. 

  428. <a name="l00396"></a>00396 
    429. 

  429. <a name="l00397"></a>00397 <span class="preprocessor">#if UIP_UDP</span>
    430. 

  430. <a name="l00398"></a>00398 <span class="preprocessor"></span><span class="comment">/**</span>
    431. 

  431. <a name="l00399"></a>00399 <span class="comment"> * Periodic processing for a UDP connection identified by its number.</span>
    432. 

  432. <a name="l00400"></a>00400 <span class="comment"> *</span>
    433. 

  433. <a name="l00401"></a>00401 <span class="comment"> * This function is essentially the same as uip_periodic(), but for</span>
    434. 

  434. <a name="l00402"></a>00402 <span class="comment"> * UDP connections. It is called in a similar fashion as the</span>
    435. 

  435. <a name="l00403"></a>00403 <span class="comment"> * uip_periodic() function:</span>
    436. 

  436. <a name="l00404"></a>00404 <span class="comment"> \code</span>
    437. 

  437. <a name="l00405"></a>00405 <span class="comment"> for(i = 0; i &lt; UIP_UDP_CONNS; i++) {</span>
    438. 

  438. <a name="l00406"></a>00406 <span class="comment"> uip_udp_periodic(i);</span>
    439. 

  439. <a name="l00407"></a>00407 <span class="comment"> if(uip_len &gt; 0) {</span>
    440. 

  440. <a name="l00408"></a>00408 <span class="comment"> devicedriver_send();</span>
    441. 

  441. <a name="l00409"></a>00409 <span class="comment"> }</span>
    442. 

  442. <a name="l00410"></a>00410 <span class="comment"> }</span>
    443. 

  443. <a name="l00411"></a>00411 <span class="comment"> \endcode</span>
    444. 

  444. <a name="l00412"></a>00412 <span class="comment"> *</span>
    445. 

  445. <a name="l00413"></a>00413 <span class="comment"> * \note As for the uip_periodic() function, special care has to be</span>
    446. 

  446. <a name="l00414"></a>00414 <span class="comment"> * taken when using uIP together with ARP and Ethernet:</span>
    447. 

  447. <a name="l00415"></a>00415 <span class="comment"> \code</span>
    448. 

  448. <a name="l00416"></a>00416 <span class="comment"> for(i = 0; i &lt; UIP_UDP_CONNS; i++) {</span>
    449. 

  449. <a name="l00417"></a>00417 <span class="comment"> uip_udp_periodic(i);</span>
    450. 

  450. <a name="l00418"></a>00418 <span class="comment"> if(uip_len &gt; 0) {</span>
    451. 

  451. <a name="l00419"></a>00419 <span class="comment"> uip_arp_out();</span>
    452. 

  452. <a name="l00420"></a>00420 <span class="comment"> ethernet_devicedriver_send();</span>
    453. 

  453. <a name="l00421"></a>00421 <span class="comment"> }</span>
    454. 

  454. <a name="l00422"></a>00422 <span class="comment"> }</span>
    455. 

  455. <a name="l00423"></a>00423 <span class="comment"> \endcode</span>
    456. 

  456. <a name="l00424"></a>00424 <span class="comment"> *</span>
    457. 

  457. <a name="l00425"></a>00425 <span class="comment"> * \param conn The number of the UDP connection to be processed.</span>
    458. 

  458. <a name="l00426"></a>00426 <span class="comment"> *</span>
    459. 

  459. <a name="l00427"></a>00427 <span class="comment"> * \hideinitializer</span>
    460. 

  460. <a name="l00428"></a>00428 <span class="comment"> */</span>
    461. 

  461. <a name="l00429"></a><a class="code" href="a01574.html#ga2c64c8c36bc84f9336f6a2184ea51883">00429</a> <span class="preprocessor">#define uip_udp_periodic(conn) do { uip_udp_conn = &amp;uip_udp_conns[conn]; \</span>
    462. 

  462. <a name="l00430"></a>00430 <span class="preprocessor">    uip_process(UIP_UDP_TIMER); } while(0)</span>
    463. 

  463. <a name="l00431"></a>00431 <span class="preprocessor"></span><span class="comment"></span>
    464. 

  464. <a name="l00432"></a>00432 <span class="comment">/**</span>
    465. 

  465. <a name="l00433"></a>00433 <span class="comment"> * Periodic processing for a UDP connection identified by a pointer to</span>
    466. 

  466. <a name="l00434"></a>00434 <span class="comment"> * its structure.</span>
    467. 

  467. <a name="l00435"></a>00435 <span class="comment"> *</span>
    468. 

  468. <a name="l00436"></a>00436 <span class="comment"> * Same as uip_udp_periodic() but takes a pointer to the actual</span>
    469. 

  469. <a name="l00437"></a>00437 <span class="comment"> * uip_conn struct instead of an integer as its argument. This</span>
    470. 

  470. <a name="l00438"></a>00438 <span class="comment"> * function can be used to force periodic processing of a specific</span>
    471. 

  471. <a name="l00439"></a>00439 <span class="comment"> * connection.</span>
    472. 

  472. <a name="l00440"></a>00440 <span class="comment"> *</span>
    473. 

  473. <a name="l00441"></a>00441 <span class="comment"> * \param conn A pointer to the uip_udp_conn struct for the connection</span>
    474. 

  474. <a name="l00442"></a>00442 <span class="comment"> * to be processed.</span>
    475. 

  475. <a name="l00443"></a>00443 <span class="comment"> *</span>
    476. 

  476. <a name="l00444"></a>00444 <span class="comment"> * \hideinitializer</span>
    477. 

  477. <a name="l00445"></a>00445 <span class="comment"> */</span>
    478. 

  478. <a name="l00446"></a><a class="code" href="a01574.html#gaf5c2ad5acf3cc23b8262e9ba6a15136b">00446</a> <span class="preprocessor">#define uip_udp_periodic_conn(conn) do { uip_udp_conn = conn;   \</span>
    479. 

  479. <a name="l00447"></a>00447 <span class="preprocessor">    uip_process(UIP_UDP_TIMER); } while(0)</span>
    480. 

  480. <a name="l00448"></a>00448 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* UIP_UDP */</span>
    481. 

  481. <a name="l00449"></a>00449 <span class="comment"></span>
    482. 

  482. <a name="l00450"></a>00450 <span class="comment">/** \brief Abandon the reassembly of the current packet */</span>
    483. 

  483. <a name="l00451"></a>00451 <span class="keywordtype">void</span> <a class="code" href="a01574.html#gaf8a01d734ce7c50dd9ef03b2a4e7a0ce" title="Abandon the reassembly of the current packet.">uip_reass_over</a>(<span class="keywordtype">void</span>);
    484. 

  484. <a name="l00452"></a>00452 <span class="comment"></span>
    485. 

  485. <a name="l00453"></a>00453 <span class="comment">/**</span>
    486. 

  486. <a name="l00454"></a>00454 <span class="comment"> * The uIP packet buffer.</span>
    487. 

  487. <a name="l00455"></a>00455 <span class="comment"> *</span>
    488. 

  488. <a name="l00456"></a>00456 <span class="comment"> * The uip_buf array is used to hold incoming and outgoing</span>
    489. 

  489. <a name="l00457"></a>00457 <span class="comment"> * packets. The device driver should place incoming data into this</span>
    490. 

  490. <a name="l00458"></a>00458 <span class="comment"> * buffer. When sending data, the device driver should read the link</span>
    491. 

  491. <a name="l00459"></a>00459 <span class="comment"> * level headers and the TCP/IP headers from this buffer. The size of</span>
    492. 

  492. <a name="l00460"></a>00460 <span class="comment"> * the link level headers is configured by the UIP_LLH_LEN define.</span>
    493. 

  493. <a name="l00461"></a>00461 <span class="comment"> *</span>
    494. 

  494. <a name="l00462"></a>00462 <span class="comment"> * \note The application data need not be placed in this buffer, so</span>
    495. 

  495. <a name="l00463"></a>00463 <span class="comment"> * the device driver must read it from the place pointed to by the</span>
    496. 

  496. <a name="l00464"></a>00464 <span class="comment"> * uip_appdata pointer as illustrated by the following example:</span>
    497. 

  497. <a name="l00465"></a>00465 <span class="comment"> \code</span>
    498. 

  498. <a name="l00466"></a>00466 <span class="comment"> void</span>
    499. 

  499. <a name="l00467"></a>00467 <span class="comment"> devicedriver_send(void)</span>
    500. 

  500. <a name="l00468"></a>00468 <span class="comment"> {</span>
    501. 

  501. <a name="l00469"></a>00469 <span class="comment"> hwsend(&amp;uip_buf[0], UIP_LLH_LEN);</span>
    502. 

  502. <a name="l00470"></a>00470 <span class="comment"> if(uip_len &lt;= UIP_LLH_LEN + UIP_TCPIP_HLEN) {</span>
    503. 

  503. <a name="l00471"></a>00471 <span class="comment"> hwsend(&amp;uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);</span>
    504. 

  504. <a name="l00472"></a>00472 <span class="comment"> } else {</span>
    505. 

  505. <a name="l00473"></a>00473 <span class="comment"> hwsend(&amp;uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);</span>
    506. 

  506. <a name="l00474"></a>00474 <span class="comment"> hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);</span>
    507. 

  507. <a name="l00475"></a>00475 <span class="comment"> }</span>
    508. 

  508. <a name="l00476"></a>00476 <span class="comment"> }</span>
    509. 

  509. <a name="l00477"></a>00477 <span class="comment"> \endcode</span>
    510. 

  510. <a name="l00478"></a>00478 <span class="comment">*/</span>
    511. 

  511. <a name="l00479"></a>00479 
    512. 

  512. <a name="l00480"></a><a class="code" href="a00091.html">00480</a> <span class="keyword">typedef</span> <span class="keyword">union </span>{
    513. 

  513. <a name="l00481"></a>00481   uint32_t u32[(<a class="code" href="a01589.html#ga3589822ecb9d9c4145209756396b8a6b" title="The size of the uIP packet buffer.">UIP_BUFSIZE</a> + 3) / 4];
    514. 

  514. <a name="l00482"></a>00482   uint8_t u8[<a class="code" href="a01589.html#ga3589822ecb9d9c4145209756396b8a6b" title="The size of the uIP packet buffer.">UIP_BUFSIZE</a>];
    515. 

  515. <a name="l00483"></a>00483 } <a class="code" href="a00091.html" title="The uIP packet buffer.">uip_buf_t</a>;
    516. 

  516. <a name="l00484"></a>00484 
    517. 

  517. <a name="l00485"></a>00485 CCIF <span class="keyword">extern</span> <a class="code" href="a00091.html" title="The uIP packet buffer.">uip_buf_t</a> uip_aligned_buf;
    518. 

  518. <a name="l00486"></a>00486 <span class="preprocessor">#define uip_buf (uip_aligned_buf.u8)</span>
    519. 

  519. <a name="l00487"></a>00487 <span class="preprocessor"></span>
    520. 

  520. <a name="l00488"></a>00488 <span class="comment"></span>
    521. 

  521. <a name="l00489"></a>00489 <span class="comment">/** @} */</span>
    522. 

  522. <a name="l00490"></a>00490 
    523. 

  523. <a name="l00491"></a>00491 <span class="comment">/*---------------------------------------------------------------------------*/</span>
    524. 

  524. <a name="l00492"></a>00492 <span class="comment">/* Functions that are used by the uIP application program. Opening and</span>
    525. 

  525. <a name="l00493"></a>00493 <span class="comment"> * closing connections, sending and receiving data, etc. is all</span>
    526. 

  526. <a name="l00494"></a>00494 <span class="comment"> * handled by the functions below.</span>
    527. 

  527. <a name="l00495"></a>00495 <span class="comment"> */</span><span class="comment"></span>
    528. 

  528. <a name="l00496"></a>00496 <span class="comment">/**</span>
    529. 

  529. <a name="l00497"></a>00497 <span class="comment"> * \defgroup uipappfunc uIP application functions</span>
    530. 

  530. <a name="l00498"></a>00498 <span class="comment"> * @{</span>
    531. 

  531. <a name="l00499"></a>00499 <span class="comment"> *</span>
    532. 

  532. <a name="l00500"></a>00500 <span class="comment"> * Functions used by an application running of top of uIP.</span>
    533. 

  533. <a name="l00501"></a>00501 <span class="comment"> */</span>
    534. 

  534. <a name="l00502"></a>00502 <span class="comment"></span>
    535. 

  535. <a name="l00503"></a>00503 <span class="comment">/**</span>
    536. 

  536. <a name="l00504"></a>00504 <span class="comment"> * Start listening to the specified port.</span>
    537. 

  537. <a name="l00505"></a>00505 <span class="comment"> *</span>
    538. 

  538. <a name="l00506"></a>00506 <span class="comment"> * \note Since this function expects the port number in network byte</span>
    539. 

  539. <a name="l00507"></a>00507 <span class="comment"> * order, a conversion using UIP_HTONS() or uip_htons() is necessary.</span>
    540. 

  540. <a name="l00508"></a>00508 <span class="comment"> *</span>
    541. 

  541. <a name="l00509"></a>00509 <span class="comment"> \code</span>
    542. 

  542. <a name="l00510"></a>00510 <span class="comment"> uip_listen(UIP_HTONS(80));</span>
    543. 

  543. <a name="l00511"></a>00511 <span class="comment"> \endcode</span>
    544. 

  544. <a name="l00512"></a>00512 <span class="comment"> *</span>
    545. 

  545. <a name="l00513"></a>00513 <span class="comment"> * \param port A 16-bit port number in network byte order.</span>
    546. 

  546. <a name="l00514"></a>00514 <span class="comment"> */</span>
    547. 

  547. <a name="l00515"></a>00515 <span class="keywordtype">void</span> <a class="code" href="a01684.html#gadd1ab3704ecd4900eec61a6897d32dc8" title="Start listening to the specified port.">uip_listen</a>(<a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> port);
    548. 

  548. <a name="l00516"></a>00516 <span class="comment"></span>
    549. 

  549. <a name="l00517"></a>00517 <span class="comment">/**</span>
    550. 

  550. <a name="l00518"></a>00518 <span class="comment"> * Stop listening to the specified port.</span>
    551. 

  551. <a name="l00519"></a>00519 <span class="comment"> *</span>
    552. 

  552. <a name="l00520"></a>00520 <span class="comment"> * \note Since this function expects the port number in network byte</span>
    553. 

  553. <a name="l00521"></a>00521 <span class="comment"> * order, a conversion using UIP_HTONS() or uip_htons() is necessary.</span>
    554. 

  554. <a name="l00522"></a>00522 <span class="comment"> *</span>
    555. 

  555. <a name="l00523"></a>00523 <span class="comment"> \code</span>
    556. 

  556. <a name="l00524"></a>00524 <span class="comment"> uip_unlisten(UIP_HTONS(80));</span>
    557. 

  557. <a name="l00525"></a>00525 <span class="comment"> \endcode</span>
    558. 

  558. <a name="l00526"></a>00526 <span class="comment"> *</span>
    559. 

  559. <a name="l00527"></a>00527 <span class="comment"> * \param port A 16-bit port number in network byte order.</span>
    560. 

  560. <a name="l00528"></a>00528 <span class="comment"> */</span>
    561. 

  561. <a name="l00529"></a>00529 <span class="keywordtype">void</span> <a class="code" href="a01684.html#gaaa585784b0914cac1d37f07f85457008" title="Stop listening to the specified port.">uip_unlisten</a>(<a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> port);
    562. 

  562. <a name="l00530"></a>00530 <span class="comment"></span>
    563. 

  563. <a name="l00531"></a>00531 <span class="comment">/**</span>
    564. 

  564. <a name="l00532"></a>00532 <span class="comment"> * Connect to a remote host using TCP.</span>
    565. 

  565. <a name="l00533"></a>00533 <span class="comment"> *</span>
    566. 

  566. <a name="l00534"></a>00534 <span class="comment"> * This function is used to start a new connection to the specified</span>
    567. 

  567. <a name="l00535"></a>00535 <span class="comment"> * port on the specified host. It allocates a new connection identifier,</span>
    568. 

  568. <a name="l00536"></a>00536 <span class="comment"> * sets the connection to the SYN_SENT state and sets the</span>
    569. 

  569. <a name="l00537"></a>00537 <span class="comment"> * retransmission timer to 0. This will cause a TCP SYN segment to be</span>
    570. 

  570. <a name="l00538"></a>00538 <span class="comment"> * sent out the next time this connection is periodically processed,</span>
    571. 

  571. <a name="l00539"></a>00539 <span class="comment"> * which usually is done within 0.5 seconds after the call to</span>
    572. 

  572. <a name="l00540"></a>00540 <span class="comment"> * uip_connect().</span>
    573. 

  573. <a name="l00541"></a>00541 <span class="comment"> *</span>
    574. 

  574. <a name="l00542"></a>00542 <span class="comment"> * \note This function is available only if support for active open</span>
    575. 

  575. <a name="l00543"></a>00543 <span class="comment"> * has been configured by defining UIP_ACTIVE_OPEN to 1 in uipopt.h.</span>
    576. 

  576. <a name="l00544"></a>00544 <span class="comment"> *</span>
    577. 

  577. <a name="l00545"></a>00545 <span class="comment"> * \note Since this function requires the port number to be in network</span>
    578. 

  578. <a name="l00546"></a>00546 <span class="comment"> * byte order, a conversion using UIP_HTONS() or uip_htons() is necessary.</span>
    579. 

  579. <a name="l00547"></a>00547 <span class="comment"> *</span>
    580. 

  580. <a name="l00548"></a>00548 <span class="comment"> \code</span>
    581. 

  581. <a name="l00549"></a>00549 <span class="comment"> uip_ipaddr_t ipaddr;</span>
    582. 

  582. <a name="l00550"></a>00550 <span class="comment"></span>
    583. 

  583. <a name="l00551"></a>00551 <span class="comment"> uip_ipaddr(&amp;ipaddr, 192,168,1,2);</span>
    584. 

  584. <a name="l00552"></a>00552 <span class="comment"> uip_connect(&amp;ipaddr, UIP_HTONS(80));</span>
    585. 

  585. <a name="l00553"></a>00553 <span class="comment"> \endcode</span>
    586. 

  586. <a name="l00554"></a>00554 <span class="comment"> *</span>
    587. 

  587. <a name="l00555"></a>00555 <span class="comment"> * \param ripaddr The IP address of the remote host.</span>
    588. 

  588. <a name="l00556"></a>00556 <span class="comment"> *</span>
    589. 

  589. <a name="l00557"></a>00557 <span class="comment"> * \param port A 16-bit port number in network byte order.</span>
    590. 

  590. <a name="l00558"></a>00558 <span class="comment"> *</span>
    591. 

  591. <a name="l00559"></a>00559 <span class="comment"> * \return A pointer to the uIP connection identifier for the new connection,</span>
    592. 

  592. <a name="l00560"></a>00560 <span class="comment"> * or NULL if no connection could be allocated.</span>
    593. 

  593. <a name="l00561"></a>00561 <span class="comment"> *</span>
    594. 

  594. <a name="l00562"></a>00562 <span class="comment"> */</span>
    595. 

  595. <a name="l00563"></a>00563 <span class="keyword">struct </span><a class="code" href="a00092.html" title="Representation of a uIP TCP connection.">uip_conn</a> *<a class="code" href="a01575.html#ga8096b0c4b543dc408f4dd031ddae7240" title="Connect to a remote host using TCP.">uip_connect</a>(<a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> *<a class="code" href="a00092.html#a79510aa86d3fa0a0fc6cfc49b1da7279" title="The IP address of the remote host.">ripaddr</a>, <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> port);
    596. 

  596. <a name="l00564"></a>00564 
    597. 

  597. <a name="l00565"></a>00565 
    598. 

  598. <a name="l00566"></a>00566 <span class="comment"></span>
    599. 

  599. <a name="l00567"></a>00567 <span class="comment">/**</span>
    600. 

  600. <a name="l00568"></a>00568 <span class="comment"> * \internal</span>
    601. 

  601. <a name="l00569"></a>00569 <span class="comment"> *</span>
    602. 

  602. <a name="l00570"></a>00570 <span class="comment"> * Check if a connection has outstanding (i.e., unacknowledged) data.</span>
    603. 

  603. <a name="l00571"></a>00571 <span class="comment"> *</span>
    604. 

  604. <a name="l00572"></a>00572 <span class="comment"> * \param conn A pointer to the uip_conn structure for the connection.</span>
    605. 

  605. <a name="l00573"></a>00573 <span class="comment"> *</span>
    606. 

  606. <a name="l00574"></a>00574 <span class="comment"> * \hideinitializer</span>
    607. 

  607. <a name="l00575"></a>00575 <span class="comment"> */</span>
    608. 

  608. <a name="l00576"></a>00576 <span class="preprocessor">#define uip_outstanding(conn) ((conn)-&gt;len)</span>
    609. 

  609. <a name="l00577"></a>00577 <span class="preprocessor"></span><span class="comment"></span>
    610. 

  610. <a name="l00578"></a>00578 <span class="comment">/**</span>
    611. 

  611. <a name="l00579"></a>00579 <span class="comment"> * Send data on the current connection.</span>
    612. 

  612. <a name="l00580"></a>00580 <span class="comment"> *</span>
    613. 

  613. <a name="l00581"></a>00581 <span class="comment"> * This function is used to send out a single segment of TCP</span>
    614. 

  614. <a name="l00582"></a>00582 <span class="comment"> * data. Only applications that have been invoked by uIP for event</span>
    615. 

  615. <a name="l00583"></a>00583 <span class="comment"> * processing can send data.</span>
    616. 

  616. <a name="l00584"></a>00584 <span class="comment"> *</span>
    617. 

  617. <a name="l00585"></a>00585 <span class="comment"> * The amount of data that actually is sent out after a call to this</span>
    618. 

  618. <a name="l00586"></a>00586 <span class="comment"> * function is determined by the maximum amount of data TCP allows. uIP</span>
    619. 

  619. <a name="l00587"></a>00587 <span class="comment"> * will automatically crop the data so that only the appropriate</span>
    620. 

  620. <a name="l00588"></a>00588 <span class="comment"> * amount of data is sent. The function uip_mss() can be used to query</span>
    621. 

  621. <a name="l00589"></a>00589 <span class="comment"> * uIP for the amount of data that actually will be sent.</span>
    622. 

  622. <a name="l00590"></a>00590 <span class="comment"> *</span>
    623. 

  623. <a name="l00591"></a>00591 <span class="comment"> * \note This function does not guarantee that the sent data will</span>
    624. 

  624. <a name="l00592"></a>00592 <span class="comment"> * arrive at the destination. If the data is lost in the network, the</span>
    625. 

  625. <a name="l00593"></a>00593 <span class="comment"> * application will be invoked with the uip_rexmit() event being</span>
    626. 

  626. <a name="l00594"></a>00594 <span class="comment"> * set. The application will then have to resend the data using this</span>
    627. 

  627. <a name="l00595"></a>00595 <span class="comment"> * function.</span>
    628. 

  628. <a name="l00596"></a>00596 <span class="comment"> *</span>
    629. 

  629. <a name="l00597"></a>00597 <span class="comment"> * \param data A pointer to the data which is to be sent.</span>
    630. 

  630. <a name="l00598"></a>00598 <span class="comment"> *</span>
    631. 

  631. <a name="l00599"></a>00599 <span class="comment"> * \param len The maximum amount of data bytes to be sent.</span>
    632. 

  632. <a name="l00600"></a>00600 <span class="comment"> *</span>
    633. 

  633. <a name="l00601"></a>00601 <span class="comment"> * \hideinitializer</span>
    634. 

  634. <a name="l00602"></a>00602 <span class="comment"> */</span>
    635. 

  635. <a name="l00603"></a>00603 CCIF <span class="keywordtype">void</span> <a class="code" href="a01684.html#ga04b053a623aac7cd4195157d470661b3" title="Send data on the current connection.">uip_send</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">int</span> <a class="code" href="a00092.html#a0ef3ae2764714bf90620075c374c262e" title="Length of the data that was previously sent.">len</a>);
    636. 

  636. <a name="l00604"></a>00604 <span class="comment"></span>
    637. 

  637. <a name="l00605"></a>00605 <span class="comment">/**</span>
    638. 

  638. <a name="l00606"></a>00606 <span class="comment"> * The length of any incoming data that is currently available (if available)</span>
    639. 

  639. <a name="l00607"></a>00607 <span class="comment"> * in the uip_appdata buffer.</span>
    640. 

  640. <a name="l00608"></a>00608 <span class="comment"> *</span>
    641. 

  641. <a name="l00609"></a>00609 <span class="comment"> * The test function uip_data() must first be used to check if there</span>
    642. 

  642. <a name="l00610"></a>00610 <span class="comment"> * is any data available at all.</span>
    643. 

  643. <a name="l00611"></a>00611 <span class="comment"> *</span>
    644. 

  644. <a name="l00612"></a>00612 <span class="comment"> * \hideinitializer</span>
    645. 

  645. <a name="l00613"></a>00613 <span class="comment"> */</span>
    646. 

  646. <a name="l00614"></a>00614 <span class="comment">/*void uip_datalen(void);*/</span>
    647. 

  647. <a name="l00615"></a><a class="code" href="a01575.html#ga1a1bc437c09ddef238abab41d77c3177">00615</a> <span class="preprocessor">#define uip_datalen()       uip_len</span>
    648. 

  648. <a name="l00616"></a>00616 <span class="preprocessor"></span><span class="comment"></span>
    649. 

  649. <a name="l00617"></a>00617 <span class="comment">/**</span>
    650. 

  650. <a name="l00618"></a>00618 <span class="comment"> * The length of any out-of-band data (urgent data) that has arrived</span>
    651. 

  651. <a name="l00619"></a>00619 <span class="comment"> * on the connection.</span>
    652. 

  652. <a name="l00620"></a>00620 <span class="comment"> *</span>
    653. 

  653. <a name="l00621"></a>00621 <span class="comment"> * \note The configuration parameter UIP_URGDATA must be set for this</span>
    654. 

  654. <a name="l00622"></a>00622 <span class="comment"> * function to be enabled.</span>
    655. 

  655. <a name="l00623"></a>00623 <span class="comment"> *</span>
    656. 

  656. <a name="l00624"></a>00624 <span class="comment"> * \hideinitializer</span>
    657. 

  657. <a name="l00625"></a>00625 <span class="comment"> */</span>
    658. 

  658. <a name="l00626"></a><a class="code" href="a01575.html#ga8411c95a4d89367ad2d9d6bde1a3d537">00626</a> <span class="preprocessor">#define uip_urgdatalen()    uip_urglen</span>
    659. 

  659. <a name="l00627"></a>00627 <span class="preprocessor"></span><span class="comment"></span>
    660. 

  660. <a name="l00628"></a>00628 <span class="comment">/**</span>
    661. 

  661. <a name="l00629"></a>00629 <span class="comment"> * Close the current connection.</span>
    662. 

  662. <a name="l00630"></a>00630 <span class="comment"> *</span>
    663. 

  663. <a name="l00631"></a>00631 <span class="comment"> * This function will close the current connection in a nice way.</span>
    664. 

  664. <a name="l00632"></a>00632 <span class="comment"> *</span>
    665. 

  665. <a name="l00633"></a>00633 <span class="comment"> * \hideinitializer</span>
    666. 

  666. <a name="l00634"></a>00634 <span class="comment"> */</span>
    667. 

  667. <a name="l00635"></a><a class="code" href="a01575.html#ga61db1dcb7c760e4dd5d60bf4e5576dca">00635</a> <span class="preprocessor">#define uip_close()         (uip_flags = UIP_CLOSE)</span>
    668. 

  668. <a name="l00636"></a>00636 <span class="preprocessor"></span><span class="comment"></span>
    669. 

  669. <a name="l00637"></a>00637 <span class="comment">/**</span>
    670. 

  670. <a name="l00638"></a>00638 <span class="comment"> * Abort the current connection.</span>
    671. 

  671. <a name="l00639"></a>00639 <span class="comment"> *</span>
    672. 

  672. <a name="l00640"></a>00640 <span class="comment"> * This function will abort (reset) the current connection, and is</span>
    673. 

  673. <a name="l00641"></a>00641 <span class="comment"> * usually used when an error has occurred that prevents using the</span>
    674. 

  674. <a name="l00642"></a>00642 <span class="comment"> * uip_close() function.</span>
    675. 

  675. <a name="l00643"></a>00643 <span class="comment"> *</span>
    676. 

  676. <a name="l00644"></a>00644 <span class="comment"> * \hideinitializer</span>
    677. 

  677. <a name="l00645"></a>00645 <span class="comment"> */</span>
    678. 

  678. <a name="l00646"></a><a class="code" href="a01575.html#ga88d2ccf7cd821f89d9a8df7e3948b56c">00646</a> <span class="preprocessor">#define uip_abort()         (uip_flags = UIP_ABORT)</span>
    679. 

  679. <a name="l00647"></a>00647 <span class="preprocessor"></span><span class="comment"></span>
    680. 

  680. <a name="l00648"></a>00648 <span class="comment">/**</span>
    681. 

  681. <a name="l00649"></a>00649 <span class="comment"> * Tell the sending host to stop sending data.</span>
    682. 

  682. <a name="l00650"></a>00650 <span class="comment"> *</span>
    683. 

  683. <a name="l00651"></a>00651 <span class="comment"> * This function will close our receiver&apos;s window so that we stop</span>
    684. 

  684. <a name="l00652"></a>00652 <span class="comment"> * receiving data for the current connection.</span>
    685. 

  685. <a name="l00653"></a>00653 <span class="comment"> *</span>
    686. 

  686. <a name="l00654"></a>00654 <span class="comment"> * \hideinitializer</span>
    687. 

  687. <a name="l00655"></a>00655 <span class="comment"> */</span>
    688. 

  688. <a name="l00656"></a><a class="code" href="a01575.html#ga0a8bb9d6d0f1f56852ccfccbbad6c5d8">00656</a> <span class="preprocessor">#define uip_stop()          (uip_conn-&gt;tcpstateflags |= UIP_STOPPED)</span>
    689. 

  689. <a name="l00657"></a>00657 <span class="preprocessor"></span><span class="comment"></span>
    690. 

  690. <a name="l00658"></a>00658 <span class="comment">/**</span>
    691. 

  691. <a name="l00659"></a>00659 <span class="comment"> * Find out if the current connection has been previously stopped with</span>
    692. 

  692. <a name="l00660"></a>00660 <span class="comment"> * uip_stop().</span>
    693. 

  693. <a name="l00661"></a>00661 <span class="comment"> *</span>
    694. 

  694. <a name="l00662"></a>00662 <span class="comment"> * \hideinitializer</span>
    695. 

  695. <a name="l00663"></a>00663 <span class="comment"> */</span>
    696. 

  696. <a name="l00664"></a><a class="code" href="a01575.html#ga64a238a5c02640a7a4aef004163aeb47">00664</a> <span class="preprocessor">#define uip_stopped(conn)   ((conn)-&gt;tcpstateflags &amp; UIP_STOPPED)</span>
    697. 

  697. <a name="l00665"></a>00665 <span class="preprocessor"></span><span class="comment"></span>
    698. 

  698. <a name="l00666"></a>00666 <span class="comment">/**</span>
    699. 

  699. <a name="l00667"></a>00667 <span class="comment"> * Restart the current connection, if is has previously been stopped</span>
    700. 

  700. <a name="l00668"></a>00668 <span class="comment"> * with uip_stop().</span>
    701. 

  701. <a name="l00669"></a>00669 <span class="comment"> *</span>
    702. 

  702. <a name="l00670"></a>00670 <span class="comment"> * This function will open the receiver&apos;s window again so that we</span>
    703. 

  703. <a name="l00671"></a>00671 <span class="comment"> * start receiving data for the current connection.</span>
    704. 

  704. <a name="l00672"></a>00672 <span class="comment"> *</span>
    705. 

  705. <a name="l00673"></a>00673 <span class="comment"> * \hideinitializer</span>
    706. 

  706. <a name="l00674"></a>00674 <span class="comment"> */</span>
    707. 

  707. <a name="l00675"></a><a class="code" href="a01575.html#ga81ac47cee1c18f6aa479044069db7ca3">00675</a> <span class="preprocessor">#define uip_restart()         do { uip_flags |= UIP_NEWDATA;    \</span>
    708. 

  708. <a name="l00676"></a>00676 <span class="preprocessor">    uip_conn-&gt;tcpstateflags &amp;= ~UIP_STOPPED;                    \</span>
    709. 

  709. <a name="l00677"></a>00677 <span class="preprocessor">  } while(0)</span>
    710. 

  710. <a name="l00678"></a>00678 <span class="preprocessor"></span>
    711. 

  711. <a name="l00679"></a>00679 
    712. 

  712. <a name="l00680"></a>00680 <span class="comment">/* uIP tests that can be made to determine in what state the current</span>
    713. 

  713. <a name="l00681"></a>00681 <span class="comment">   connection is, and what the application function should do. */</span>
    714. 

  714. <a name="l00682"></a>00682 <span class="comment"></span>
    715. 

  715. <a name="l00683"></a>00683 <span class="comment">/**</span>
    716. 

  716. <a name="l00684"></a>00684 <span class="comment"> * Is the current connection a UDP connection?</span>
    717. 

  717. <a name="l00685"></a>00685 <span class="comment"> *</span>
    718. 

  718. <a name="l00686"></a>00686 <span class="comment"> * This function checks whether the current connection is a UDP connection.</span>
    719. 

  719. <a name="l00687"></a>00687 <span class="comment"> *</span>
    720. 

  720. <a name="l00688"></a>00688 <span class="comment"> * \hideinitializer</span>
    721. 

  721. <a name="l00689"></a>00689 <span class="comment"> *</span>
    722. 

  722. <a name="l00690"></a>00690 <span class="comment"> */</span>
    723. 

  723. <a name="l00691"></a><a class="code" href="a01575.html#gaa9de254b8aa308eb4aab17efdde622d2">00691</a> <span class="preprocessor">#define uip_udpconnection() (uip_conn == NULL)</span>
    724. 

  724. <a name="l00692"></a>00692 <span class="preprocessor"></span><span class="comment"></span>
    725. 

  725. <a name="l00693"></a>00693 <span class="comment">/**</span>
    726. 

  726. <a name="l00694"></a>00694 <span class="comment"> * Is new incoming data available?</span>
    727. 

  727. <a name="l00695"></a>00695 <span class="comment"> *</span>
    728. 

  728. <a name="l00696"></a>00696 <span class="comment"> * Will reduce to non-zero if there is new data for the application</span>
    729. 

  729. <a name="l00697"></a>00697 <span class="comment"> * present at the uip_appdata pointer. The size of the data is</span>
    730. 

  730. <a name="l00698"></a>00698 <span class="comment"> * available through the uip_len variable.</span>
    731. 

  731. <a name="l00699"></a>00699 <span class="comment"> *</span>
    732. 

  732. <a name="l00700"></a>00700 <span class="comment"> * \hideinitializer</span>
    733. 

  733. <a name="l00701"></a>00701 <span class="comment"> */</span>
    734. 

  734. <a name="l00702"></a><a class="code" href="a01575.html#ga26a14b8dae3f861830af9e7cf1e03725">00702</a> <span class="preprocessor">#define uip_newdata()   (uip_flags &amp; UIP_NEWDATA)</span>
    735. 

  735. <a name="l00703"></a>00703 <span class="preprocessor"></span><span class="comment"></span>
    736. 

  736. <a name="l00704"></a>00704 <span class="comment">/**</span>
    737. 

  737. <a name="l00705"></a>00705 <span class="comment"> * Has previously sent data been acknowledged?</span>
    738. 

  738. <a name="l00706"></a>00706 <span class="comment"> *</span>
    739. 

  739. <a name="l00707"></a>00707 <span class="comment"> * Will reduce to non-zero if the previously sent data has been</span>
    740. 

  740. <a name="l00708"></a>00708 <span class="comment"> * acknowledged by the remote host. This means that the application</span>
    741. 

  741. <a name="l00709"></a>00709 <span class="comment"> * can send new data.</span>
    742. 

  742. <a name="l00710"></a>00710 <span class="comment"> *</span>
    743. 

  743. <a name="l00711"></a>00711 <span class="comment"> * \hideinitializer</span>
    744. 

  744. <a name="l00712"></a>00712 <span class="comment"> */</span>
    745. 

  745. <a name="l00713"></a><a class="code" href="a01575.html#gade6634974418e3240c212b9b16864368">00713</a> <span class="preprocessor">#define uip_acked()   (uip_flags &amp; UIP_ACKDATA)</span>
    746. 

  746. <a name="l00714"></a>00714 <span class="preprocessor"></span><span class="comment"></span>
    747. 

  747. <a name="l00715"></a>00715 <span class="comment">/**</span>
    748. 

  748. <a name="l00716"></a>00716 <span class="comment"> * Has the connection just been connected?</span>
    749. 

  749. <a name="l00717"></a>00717 <span class="comment"> *</span>
    750. 

  750. <a name="l00718"></a>00718 <span class="comment"> * Reduces to non-zero if the current connection has been connected to</span>
    751. 

  751. <a name="l00719"></a>00719 <span class="comment"> * a remote host. This will happen both if the connection has been</span>
    752. 

  752. <a name="l00720"></a>00720 <span class="comment"> * actively opened (with uip_connect()) or passively opened (with</span>
    753. 

  753. <a name="l00721"></a>00721 <span class="comment"> * uip_listen()).</span>
    754. 

  754. <a name="l00722"></a>00722 <span class="comment"> *</span>
    755. 

  755. <a name="l00723"></a>00723 <span class="comment"> * \hideinitializer</span>
    756. 

  756. <a name="l00724"></a>00724 <span class="comment"> */</span>
    757. 

  757. <a name="l00725"></a><a class="code" href="a01575.html#gadb971fb1525d0c5002f52125b05f3218">00725</a> <span class="preprocessor">#define uip_connected() (uip_flags &amp; UIP_CONNECTED)</span>
    758. 

  758. <a name="l00726"></a>00726 <span class="preprocessor"></span><span class="comment"></span>
    759. 

  759. <a name="l00727"></a>00727 <span class="comment">/**</span>
    760. 

  760. <a name="l00728"></a>00728 <span class="comment"> * Has the connection been closed by the other end?</span>
    761. 

  761. <a name="l00729"></a>00729 <span class="comment"> *</span>
    762. 

  762. <a name="l00730"></a>00730 <span class="comment"> * Is non-zero if the connection has been closed by the remote</span>
    763. 

  763. <a name="l00731"></a>00731 <span class="comment"> * host. The application may then do the necessary clean-ups.</span>
    764. 

  764. <a name="l00732"></a>00732 <span class="comment"> *</span>
    765. 

  765. <a name="l00733"></a>00733 <span class="comment"> * \hideinitializer</span>
    766. 

  766. <a name="l00734"></a>00734 <span class="comment"> */</span>
    767. 

  767. <a name="l00735"></a><a class="code" href="a01575.html#gaef6c4140c632b6a406779342cf3b6eb6">00735</a> <span class="preprocessor">#define uip_closed()    (uip_flags &amp; UIP_CLOSE)</span>
    768. 

  768. <a name="l00736"></a>00736 <span class="preprocessor"></span><span class="comment"></span>
    769. 

  769. <a name="l00737"></a>00737 <span class="comment">/**</span>
    770. 

  770. <a name="l00738"></a>00738 <span class="comment"> * Has the connection been aborted by the other end?</span>
    771. 

  771. <a name="l00739"></a>00739 <span class="comment"> *</span>
    772. 

  772. <a name="l00740"></a>00740 <span class="comment"> * Non-zero if the current connection has been aborted (reset) by the</span>
    773. 

  773. <a name="l00741"></a>00741 <span class="comment"> * remote host.</span>
    774. 

  774. <a name="l00742"></a>00742 <span class="comment"> *</span>
    775. 

  775. <a name="l00743"></a>00743 <span class="comment"> * \hideinitializer</span>
    776. 

  776. <a name="l00744"></a>00744 <span class="comment"> */</span>
    777. 

  777. <a name="l00745"></a><a class="code" href="a01575.html#gafbd5fc486dfdf6bf6fc9db52b1f418c4">00745</a> <span class="preprocessor">#define uip_aborted()    (uip_flags &amp; UIP_ABORT)</span>
    778. 

  778. <a name="l00746"></a>00746 <span class="preprocessor"></span><span class="comment"></span>
    779. 

  779. <a name="l00747"></a>00747 <span class="comment">/**</span>
    780. 

  780. <a name="l00748"></a>00748 <span class="comment"> * Has the connection timed out?</span>
    781. 

  781. <a name="l00749"></a>00749 <span class="comment"> *</span>
    782. 

  782. <a name="l00750"></a>00750 <span class="comment"> * Non-zero if the current connection has been aborted due to too many</span>
    783. 

  783. <a name="l00751"></a>00751 <span class="comment"> * retransmissions.</span>
    784. 

  784. <a name="l00752"></a>00752 <span class="comment"> *</span>
    785. 

  785. <a name="l00753"></a>00753 <span class="comment"> * \hideinitializer</span>
    786. 

  786. <a name="l00754"></a>00754 <span class="comment"> */</span>
    787. 

  787. <a name="l00755"></a><a class="code" href="a01575.html#ga7b2ac4b18bd2ac3912fe67b3b17158c3">00755</a> <span class="preprocessor">#define uip_timedout()    (uip_flags &amp; UIP_TIMEDOUT)</span>
    788. 

  788. <a name="l00756"></a>00756 <span class="preprocessor"></span><span class="comment"></span>
    789. 

  789. <a name="l00757"></a>00757 <span class="comment">/**</span>
    790. 

  790. <a name="l00758"></a>00758 <span class="comment"> * Do we need to retransmit previously data?</span>
    791. 

  791. <a name="l00759"></a>00759 <span class="comment"> *</span>
    792. 

  792. <a name="l00760"></a>00760 <span class="comment"> * Reduces to non-zero if the previously sent data has been lost in</span>
    793. 

  793. <a name="l00761"></a>00761 <span class="comment"> * the network, and the application should retransmit it. The</span>
    794. 

  794. <a name="l00762"></a>00762 <span class="comment"> * application should send the exact same data as it did the last</span>
    795. 

  795. <a name="l00763"></a>00763 <span class="comment"> * time, using the uip_send() function.</span>
    796. 

  796. <a name="l00764"></a>00764 <span class="comment"> *</span>
    797. 

  797. <a name="l00765"></a>00765 <span class="comment"> * \hideinitializer</span>
    798. 

  798. <a name="l00766"></a>00766 <span class="comment"> */</span>
    799. 

  799. <a name="l00767"></a><a class="code" href="a01575.html#gaa8933ad15a2e2947dae4a5cff50e6007">00767</a> <span class="preprocessor">#define uip_rexmit()     (uip_flags &amp; UIP_REXMIT)</span>
    800. 

  800. <a name="l00768"></a>00768 <span class="preprocessor"></span><span class="comment"></span>
    801. 

  801. <a name="l00769"></a>00769 <span class="comment">/**</span>
    802. 

  802. <a name="l00770"></a>00770 <span class="comment"> * Is the connection being polled by uIP?</span>
    803. 

  803. <a name="l00771"></a>00771 <span class="comment"> *</span>
    804. 

  804. <a name="l00772"></a>00772 <span class="comment"> * Is non-zero if the reason the application is invoked is that the</span>
    805. 

  805. <a name="l00773"></a>00773 <span class="comment"> * current connection has been idle for a while and should be</span>
    806. 

  806. <a name="l00774"></a>00774 <span class="comment"> * polled.</span>
    807. 

  807. <a name="l00775"></a>00775 <span class="comment"> *</span>
    808. 

  808. <a name="l00776"></a>00776 <span class="comment"> * The polling event can be used for sending data without having to</span>
    809. 

  809. <a name="l00777"></a>00777 <span class="comment"> * wait for the remote host to send data.</span>
    810. 

  810. <a name="l00778"></a>00778 <span class="comment"> *</span>
    811. 

  811. <a name="l00779"></a>00779 <span class="comment"> * \hideinitializer</span>
    812. 

  812. <a name="l00780"></a>00780 <span class="comment"> */</span>
    813. 

  813. <a name="l00781"></a><a class="code" href="a01575.html#ga58bb90796c1cdad3aac2ecf44d87b20e">00781</a> <span class="preprocessor">#define uip_poll()       (uip_flags &amp; UIP_POLL)</span>
    814. 

  814. <a name="l00782"></a>00782 <span class="preprocessor"></span><span class="comment"></span>
    815. 

  815. <a name="l00783"></a>00783 <span class="comment">/**</span>
    816. 

  816. <a name="l00784"></a>00784 <span class="comment"> * Get the initial maximum segment size (MSS) of the current</span>
    817. 

  817. <a name="l00785"></a>00785 <span class="comment"> * connection.</span>
    818. 

  818. <a name="l00786"></a>00786 <span class="comment"> *</span>
    819. 

  819. <a name="l00787"></a>00787 <span class="comment"> * \hideinitializer</span>
    820. 

  820. <a name="l00788"></a>00788 <span class="comment"> */</span>
    821. 

  821. <a name="l00789"></a><a class="code" href="a01575.html#gaa87feebc7cffd4d8300e776cf64e4fec">00789</a> <span class="preprocessor">#define uip_initialmss()             (uip_conn-&gt;initialmss)</span>
    822. 

  822. <a name="l00790"></a>00790 <span class="preprocessor"></span><span class="comment"></span>
    823. 

  823. <a name="l00791"></a>00791 <span class="comment">/**</span>
    824. 

  824. <a name="l00792"></a>00792 <span class="comment"> * Get the current maximum segment size that can be sent on the current</span>
    825. 

  825. <a name="l00793"></a>00793 <span class="comment"> * connection.</span>
    826. 

  826. <a name="l00794"></a>00794 <span class="comment"> *</span>
    827. 

  827. <a name="l00795"></a>00795 <span class="comment"> * The current maximum segment size that can be sent on the</span>
    828. 

  828. <a name="l00796"></a>00796 <span class="comment"> * connection is computed from the receiver&apos;s window and the MSS of</span>
    829. 

  829. <a name="l00797"></a>00797 <span class="comment"> * the connection (which also is available by calling</span>
    830. 

  830. <a name="l00798"></a>00798 <span class="comment"> * uip_initialmss()).</span>
    831. 

  831. <a name="l00799"></a>00799 <span class="comment"> *</span>
    832. 

  832. <a name="l00800"></a>00800 <span class="comment"> * \hideinitializer</span>
    833. 

  833. <a name="l00801"></a>00801 <span class="comment"> */</span>
    834. 

  834. <a name="l00802"></a><a class="code" href="a01575.html#gab5fecbc62edd128012cea0f47b57ab9f">00802</a> <span class="preprocessor">#define uip_mss()             (uip_conn-&gt;mss)</span>
    835. 

  835. <a name="l00803"></a>00803 <span class="preprocessor"></span><span class="comment"></span>
    836. 

  836. <a name="l00804"></a>00804 <span class="comment">/**</span>
    837. 

  837. <a name="l00805"></a>00805 <span class="comment"> * Set up a new UDP connection.</span>
    838. 

  838. <a name="l00806"></a>00806 <span class="comment"> *</span>
    839. 

  839. <a name="l00807"></a>00807 <span class="comment"> * This function sets up a new UDP connection. The function will</span>
    840. 

  840. <a name="l00808"></a>00808 <span class="comment"> * automatically allocate an unused local port for the new</span>
    841. 

  841. <a name="l00809"></a>00809 <span class="comment"> * connection. However, another port can be chosen by using the</span>
    842. 

  842. <a name="l00810"></a>00810 <span class="comment"> * uip_udp_bind() call, after the uip_udp_new() function has been</span>
    843. 

  843. <a name="l00811"></a>00811 <span class="comment"> * called.</span>
    844. 

  844. <a name="l00812"></a>00812 <span class="comment"> *</span>
    845. 

  845. <a name="l00813"></a>00813 <span class="comment"> * Example:</span>
    846. 

  846. <a name="l00814"></a>00814 <span class="comment"> \code</span>
    847. 

  847. <a name="l00815"></a>00815 <span class="comment"> uip_ipaddr_t addr;</span>
    848. 

  848. <a name="l00816"></a>00816 <span class="comment"> struct uip_udp_conn *c;</span>
    849. 

  849. <a name="l00817"></a>00817 <span class="comment"> </span>
    850. 

  850. <a name="l00818"></a>00818 <span class="comment"> uip_ipaddr(&amp;addr, 192,168,2,1);</span>
    851. 

  851. <a name="l00819"></a>00819 <span class="comment"> c = uip_udp_new(&amp;addr, UIP_HTONS(12345));</span>
    852. 

  852. <a name="l00820"></a>00820 <span class="comment"> if(c != NULL) {</span>
    853. 

  853. <a name="l00821"></a>00821 <span class="comment"> uip_udp_bind(c, UIP_HTONS(12344));</span>
    854. 

  854. <a name="l00822"></a>00822 <span class="comment"> }</span>
    855. 

  855. <a name="l00823"></a>00823 <span class="comment"> \endcode</span>
    856. 

  856. <a name="l00824"></a>00824 <span class="comment"> * \param ripaddr The IP address of the remote host.</span>
    857. 

  857. <a name="l00825"></a>00825 <span class="comment"> *</span>
    858. 

  858. <a name="l00826"></a>00826 <span class="comment"> * \param rport The remote port number in network byte order.</span>
    859. 

  859. <a name="l00827"></a>00827 <span class="comment"> *</span>
    860. 

  860. <a name="l00828"></a>00828 <span class="comment"> * \return The uip_udp_conn structure for the new connection or NULL</span>
    861. 

  861. <a name="l00829"></a>00829 <span class="comment"> * if no connection could be allocated.</span>
    862. 

  862. <a name="l00830"></a>00830 <span class="comment"> */</span>
    863. 

  863. <a name="l00831"></a>00831 <span class="keyword">struct </span><a class="code" href="a00119.html" title="Representation of a uIP UDP connection.">uip_udp_conn</a> *<a class="code" href="a01684.html#ga5703bad3c0154b02715260ddf6b612a2" title="Set up a new UDP connection.">uip_udp_new</a>(<span class="keyword">const</span> <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> *<a class="code" href="a00119.html#a8a661a2d544100b82d0d14a1985083d5" title="The IP address of the remote peer.">ripaddr</a>, <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00119.html#a280a0c2a93544e597f92bbacf36ee1dc" title="The remote port number in network byte order.">rport</a>);
    864. 

  864. <a name="l00832"></a>00832 <span class="comment"></span>
    865. 

  865. <a name="l00833"></a>00833 <span class="comment">/**</span>
    866. 

  866. <a name="l00834"></a>00834 <span class="comment"> * Removed a UDP connection.</span>
    867. 

  867. <a name="l00835"></a>00835 <span class="comment"> *</span>
    868. 

  868. <a name="l00836"></a>00836 <span class="comment"> * \param conn A pointer to the uip_udp_conn structure for the connection.</span>
    869. 

  869. <a name="l00837"></a>00837 <span class="comment"> *</span>
    870. 

  870. <a name="l00838"></a>00838 <span class="comment"> * \hideinitializer</span>
    871. 

  871. <a name="l00839"></a>00839 <span class="comment"> */</span>
    872. 

  872. <a name="l00840"></a><a class="code" href="a01575.html#gaf2dbaceb10c67783a115075b5b6d66df">00840</a> <span class="preprocessor">#define uip_udp_remove(conn) (conn)-&gt;lport = 0</span>
    873. 

  873. <a name="l00841"></a>00841 <span class="preprocessor"></span><span class="comment"></span>
    874. 

  874. <a name="l00842"></a>00842 <span class="comment">/**</span>
    875. 

  875. <a name="l00843"></a>00843 <span class="comment"> * Bind a UDP connection to a local port.</span>
    876. 

  876. <a name="l00844"></a>00844 <span class="comment"> *</span>
    877. 

  877. <a name="l00845"></a>00845 <span class="comment"> * \param conn A pointer to the uip_udp_conn structure for the</span>
    878. 

  878. <a name="l00846"></a>00846 <span class="comment"> * connection.</span>
    879. 

  879. <a name="l00847"></a>00847 <span class="comment"> *</span>
    880. 

  880. <a name="l00848"></a>00848 <span class="comment"> * \param port The local port number, in network byte order.</span>
    881. 

  881. <a name="l00849"></a>00849 <span class="comment"> *</span>
    882. 

  882. <a name="l00850"></a>00850 <span class="comment"> * \hideinitializer</span>
    883. 

  883. <a name="l00851"></a>00851 <span class="comment"> */</span>
    884. 

  884. <a name="l00852"></a><a class="code" href="a01575.html#gaa20812098a4663c8a9fc4ce8e95391b6">00852</a> <span class="preprocessor">#define uip_udp_bind(conn, port) (conn)-&gt;lport = port</span>
    885. 

  885. <a name="l00853"></a>00853 <span class="preprocessor"></span><span class="comment"></span>
    886. 

  886. <a name="l00854"></a>00854 <span class="comment">/**</span>
    887. 

  887. <a name="l00855"></a>00855 <span class="comment"> * Send a UDP datagram of length len on the current connection.</span>
    888. 

  888. <a name="l00856"></a>00856 <span class="comment"> *</span>
    889. 

  889. <a name="l00857"></a>00857 <span class="comment"> * This function can only be called in response to a UDP event (poll</span>
    890. 

  890. <a name="l00858"></a>00858 <span class="comment"> * or newdata). The data must be present in the uip_buf buffer, at the</span>
    891. 

  891. <a name="l00859"></a>00859 <span class="comment"> * place pointed to by the uip_appdata pointer.</span>
    892. 

  892. <a name="l00860"></a>00860 <span class="comment"> *</span>
    893. 

  893. <a name="l00861"></a>00861 <span class="comment"> * \param len The length of the data in the uip_buf buffer.</span>
    894. 

  894. <a name="l00862"></a>00862 <span class="comment"> *</span>
    895. 

  895. <a name="l00863"></a>00863 <span class="comment"> * \hideinitializer</span>
    896. 

  896. <a name="l00864"></a>00864 <span class="comment"> */</span>
    897. 

  897. <a name="l00865"></a><a class="code" href="a01575.html#gae5ab69d40013e6cf86ef1763c95d920e">00865</a> <span class="preprocessor">#define uip_udp_send(len) uip_send((char *)uip_appdata, len)</span>
    898. 

  898. <a name="l00866"></a>00866 <span class="preprocessor"></span><span class="comment"></span>
    899. 

  899. <a name="l00867"></a>00867 <span class="comment">/** @} */</span>
    900. 

  900. <a name="l00868"></a>00868 
    901. 

  901. <a name="l00869"></a>00869 <span class="comment">/* uIP convenience and converting functions. */</span>
    902. 

  902. <a name="l00870"></a>00870 <span class="comment"></span>
    903. 

  903. <a name="l00871"></a>00871 <span class="comment">/**</span>
    904. 

  904. <a name="l00872"></a>00872 <span class="comment"> * \defgroup uipconvfunc uIP conversion functions</span>
    905. 

  905. <a name="l00873"></a>00873 <span class="comment"> * @{</span>
    906. 

  906. <a name="l00874"></a>00874 <span class="comment"> *</span>
    907. 

  907. <a name="l00875"></a>00875 <span class="comment"> * These functions can be used for converting between different data</span>
    908. 

  908. <a name="l00876"></a>00876 <span class="comment"> * formats used by uIP.</span>
    909. 

  909. <a name="l00877"></a>00877 <span class="comment"> */</span>
    910. 

  910. <a name="l00878"></a>00878  <span class="comment"></span>
    911. 

  911. <a name="l00879"></a>00879 <span class="comment">/**</span>
    912. 

  912. <a name="l00880"></a>00880 <span class="comment"> * Convert an IP address to four bytes separated by commas.</span>
    913. 

  913. <a name="l00881"></a>00881 <span class="comment"> *</span>
    914. 

  914. <a name="l00882"></a>00882 <span class="comment"> * Example:</span>
    915. 

  915. <a name="l00883"></a>00883 <span class="comment"> \code</span>
    916. 

  916. <a name="l00884"></a>00884 <span class="comment"> uip_ipaddr_t ipaddr;</span>
    917. 

  917. <a name="l00885"></a>00885 <span class="comment"> printf(&quot;ipaddr=%d.%d.%d.%d\n&quot;, uip_ipaddr_to_quad(&amp;ipaddr));</span>
    918. 

  918. <a name="l00886"></a>00886 <span class="comment"> \endcode</span>
    919. 

  919. <a name="l00887"></a>00887 <span class="comment"> *</span>
    920. 

  920. <a name="l00888"></a>00888 <span class="comment"> * \param a A pointer to a uip_ipaddr_t.</span>
    921. 

  921. <a name="l00889"></a>00889 <span class="comment"> * \hideinitializer</span>
    922. 

  922. <a name="l00890"></a>00890 <span class="comment"> */</span>
    923. 

  923. <a name="l00891"></a><a class="code" href="a01576.html#gab6ae63b3e36da2ea6598ea91ad049516">00891</a> <span class="preprocessor">#define uip_ipaddr_to_quad(a) (a)-&gt;u8[0],(a)-&gt;u8[1],(a)-&gt;u8[2],(a)-&gt;u8[3]</span>
    924. 

  924. <a name="l00892"></a>00892 <span class="preprocessor"></span><span class="comment"></span>
    925. 

  925. <a name="l00893"></a>00893 <span class="comment">/**</span>
    926. 

  926. <a name="l00894"></a>00894 <span class="comment"> * Construct an IP address from four bytes.</span>
    927. 

  927. <a name="l00895"></a>00895 <span class="comment"> *</span>
    928. 

  928. <a name="l00896"></a>00896 <span class="comment"> * This function constructs an IP address of the type that uIP handles</span>
    929. 

  929. <a name="l00897"></a>00897 <span class="comment"> * internally from four bytes. The function is handy for specifying IP</span>
    930. 

  930. <a name="l00898"></a>00898 <span class="comment"> * addresses to use with e.g. the uip_connect() function.</span>
    931. 

  931. <a name="l00899"></a>00899 <span class="comment"> *</span>
    932. 

  932. <a name="l00900"></a>00900 <span class="comment"> * Example:</span>
    933. 

  933. <a name="l00901"></a>00901 <span class="comment"> \code</span>
    934. 

  934. <a name="l00902"></a>00902 <span class="comment"> uip_ipaddr_t ipaddr;</span>
    935. 

  935. <a name="l00903"></a>00903 <span class="comment"> struct uip_conn *c;</span>
    936. 

  936. <a name="l00904"></a>00904 <span class="comment"> </span>
    937. 

  937. <a name="l00905"></a>00905 <span class="comment"> uip_ipaddr(&amp;ipaddr, 192,168,1,2);</span>
    938. 

  938. <a name="l00906"></a>00906 <span class="comment"> c = uip_connect(&amp;ipaddr, UIP_HTONS(80));</span>
    939. 

  939. <a name="l00907"></a>00907 <span class="comment"> \endcode</span>
    940. 

  940. <a name="l00908"></a>00908 <span class="comment"> *</span>
    941. 

  941. <a name="l00909"></a>00909 <span class="comment"> * \param addr A pointer to a uip_ipaddr_t variable that will be</span>
    942. 

  942. <a name="l00910"></a>00910 <span class="comment"> * filled in with the IP address.</span>
    943. 

  943. <a name="l00911"></a>00911 <span class="comment"> *</span>
    944. 

  944. <a name="l00912"></a>00912 <span class="comment"> * \param addr0 The first octet of the IP address.</span>
    945. 

  945. <a name="l00913"></a>00913 <span class="comment"> * \param addr1 The second octet of the IP address.</span>
    946. 

  946. <a name="l00914"></a>00914 <span class="comment"> * \param addr2 The third octet of the IP address.</span>
    947. 

  947. <a name="l00915"></a>00915 <span class="comment"> * \param addr3 The forth octet of the IP address.</span>
    948. 

  948. <a name="l00916"></a>00916 <span class="comment"> *</span>
    949. 

  949. <a name="l00917"></a>00917 <span class="comment"> * \hideinitializer</span>
    950. 

  950. <a name="l00918"></a>00918 <span class="comment"> */</span>
    951. 

  951. <a name="l00919"></a><a class="code" href="a01576.html#ga87f0b54ade0d159fba495089128a4932">00919</a> <span class="preprocessor">#define uip_ipaddr(addr, addr0,addr1,addr2,addr3) do {  \</span>
    952. 

  952. <a name="l00920"></a>00920 <span class="preprocessor">    (addr)-&gt;u8[0] = addr0;                              \</span>
    953. 

  953. <a name="l00921"></a>00921 <span class="preprocessor">    (addr)-&gt;u8[1] = addr1;                              \</span>
    954. 

  954. <a name="l00922"></a>00922 <span class="preprocessor">    (addr)-&gt;u8[2] = addr2;                              \</span>
    955. 

  955. <a name="l00923"></a>00923 <span class="preprocessor">    (addr)-&gt;u8[3] = addr3;                              \</span>
    956. 

  956. <a name="l00924"></a>00924 <span class="preprocessor">  } while(0)</span>
    957. 

  957. <a name="l00925"></a>00925 <span class="preprocessor"></span><span class="comment"></span>
    958. 

  958. <a name="l00926"></a>00926 <span class="comment">/**</span>
    959. 

  959. <a name="l00927"></a>00927 <span class="comment"> * Construct an IPv6 address from eight 16-bit words.</span>
    960. 

  960. <a name="l00928"></a>00928 <span class="comment"> *</span>
    961. 

  961. <a name="l00929"></a>00929 <span class="comment"> * This function constructs an IPv6 address.</span>
    962. 

  962. <a name="l00930"></a>00930 <span class="comment"> *</span>
    963. 

  963. <a name="l00931"></a>00931 <span class="comment"> * \hideinitializer</span>
    964. 

  964. <a name="l00932"></a>00932 <span class="comment"> */</span>
    965. 

  965. <a name="l00933"></a><a class="code" href="a01576.html#ga53fbda0e8c31d4882294c8dc3cb5f487">00933</a> <span class="preprocessor">#define uip_ip6addr(addr, addr0,addr1,addr2,addr3,addr4,addr5,addr6,addr7) do { \</span>
    966. 

  966. <a name="l00934"></a>00934 <span class="preprocessor">    (addr)-&gt;u16[0] = UIP_HTONS(addr0);                                      \</span>
    967. 

  967. <a name="l00935"></a>00935 <span class="preprocessor">    (addr)-&gt;u16[1] = UIP_HTONS(addr1);                                      \</span>
    968. 

  968. <a name="l00936"></a>00936 <span class="preprocessor">    (addr)-&gt;u16[2] = UIP_HTONS(addr2);                                      \</span>
    969. 

  969. <a name="l00937"></a>00937 <span class="preprocessor">    (addr)-&gt;u16[3] = UIP_HTONS(addr3);                                      \</span>
    970. 

  970. <a name="l00938"></a>00938 <span class="preprocessor">    (addr)-&gt;u16[4] = UIP_HTONS(addr4);                                      \</span>
    971. 

  971. <a name="l00939"></a>00939 <span class="preprocessor">    (addr)-&gt;u16[5] = UIP_HTONS(addr5);                                      \</span>
    972. 

  972. <a name="l00940"></a>00940 <span class="preprocessor">    (addr)-&gt;u16[6] = UIP_HTONS(addr6);                                      \</span>
    973. 

  973. <a name="l00941"></a>00941 <span class="preprocessor">    (addr)-&gt;u16[7] = UIP_HTONS(addr7);                                      \</span>
    974. 

  974. <a name="l00942"></a>00942 <span class="preprocessor">  } while(0)</span>
    975. 

  975. <a name="l00943"></a>00943 <span class="preprocessor"></span><span class="comment"></span>
    976. 

  976. <a name="l00944"></a>00944 <span class="comment">/**</span>
    977. 

  977. <a name="l00945"></a>00945 <span class="comment"> * Construct an IPv6 address from eight 8-bit words.</span>
    978. 

  978. <a name="l00946"></a>00946 <span class="comment"> *</span>
    979. 

  979. <a name="l00947"></a>00947 <span class="comment"> * This function constructs an IPv6 address.</span>
    980. 

  980. <a name="l00948"></a>00948 <span class="comment"> *</span>
    981. 

  981. <a name="l00949"></a>00949 <span class="comment"> * \hideinitializer</span>
    982. 

  982. <a name="l00950"></a>00950 <span class="comment"> */</span>
    983. 

  983. <a name="l00951"></a><a class="code" href="a01576.html#ga3b6203a969d07b25be717bf04f0a0a99">00951</a> <span class="preprocessor">#define uip_ip6addr_u8(addr, addr0,addr1,addr2,addr3,addr4,addr5,addr6,addr7,addr8,addr9,addr10,addr11,addr12,addr13,addr14,addr15) do { \</span>
    984. 

  984. <a name="l00952"></a>00952 <span class="preprocessor">    (addr)-&gt;u8[0] = addr0;                                       \</span>
    985. 

  985. <a name="l00953"></a>00953 <span class="preprocessor">    (addr)-&gt;u8[1] = addr1;                                       \</span>
    986. 

  986. <a name="l00954"></a>00954 <span class="preprocessor">    (addr)-&gt;u8[2] = addr2;                                       \</span>
    987. 

  987. <a name="l00955"></a>00955 <span class="preprocessor">    (addr)-&gt;u8[3] = addr3;                                       \</span>
    988. 

  988. <a name="l00956"></a>00956 <span class="preprocessor">    (addr)-&gt;u8[4] = addr4;                                       \</span>
    989. 

  989. <a name="l00957"></a>00957 <span class="preprocessor">    (addr)-&gt;u8[5] = addr5;                                       \</span>
    990. 

  990. <a name="l00958"></a>00958 <span class="preprocessor">    (addr)-&gt;u8[6] = addr6;                                       \</span>
    991. 

  991. <a name="l00959"></a>00959 <span class="preprocessor">    (addr)-&gt;u8[7] = addr7;                                       \</span>
    992. 

  992. <a name="l00960"></a>00960 <span class="preprocessor">    (addr)-&gt;u8[8] = addr8;                                       \</span>
    993. 

  993. <a name="l00961"></a>00961 <span class="preprocessor">    (addr)-&gt;u8[9] = addr9;                                       \</span>
    994. 

  994. <a name="l00962"></a>00962 <span class="preprocessor">    (addr)-&gt;u8[10] = addr10;                                     \</span>
    995. 

  995. <a name="l00963"></a>00963 <span class="preprocessor">    (addr)-&gt;u8[11] = addr11;                                     \</span>
    996. 

  996. <a name="l00964"></a>00964 <span class="preprocessor">    (addr)-&gt;u8[12] = addr12;                                     \</span>
    997. 

  997. <a name="l00965"></a>00965 <span class="preprocessor">    (addr)-&gt;u8[13] = addr13;                                     \</span>
    998. 

  998. <a name="l00966"></a>00966 <span class="preprocessor">    (addr)-&gt;u8[14] = addr14;                                     \</span>
    999. 

  999. <a name="l00967"></a>00967 <span class="preprocessor">    (addr)-&gt;u8[15] = addr15;                                     \</span>
    1000. 

  1000. <a name="l00968"></a>00968 <span class="preprocessor">  } while(0)</span>
    1001. 

  1001. <a name="l00969"></a>00969 <span class="preprocessor"></span>
    1002. 

  1002. <a name="l00970"></a>00970 <span class="comment"></span>
    1003. 

  1003. <a name="l00971"></a>00971 <span class="comment">/**</span>
    1004. 

  1004. <a name="l00972"></a>00972 <span class="comment"> * Copy an IP address to another IP address.</span>
    1005. 

  1005. <a name="l00973"></a>00973 <span class="comment"> *</span>
    1006. 

  1006. <a name="l00974"></a>00974 <span class="comment"> * Copies an IP address from one place to another.</span>
    1007. 

  1007. <a name="l00975"></a>00975 <span class="comment"> *</span>
    1008. 

  1008. <a name="l00976"></a>00976 <span class="comment"> * Example:</span>
    1009. 

  1009. <a name="l00977"></a>00977 <span class="comment"> \code</span>
    1010. 

  1010. <a name="l00978"></a>00978 <span class="comment"> uip_ipaddr_t ipaddr1, ipaddr2;</span>
    1011. 

  1011. <a name="l00979"></a>00979 <span class="comment"></span>
    1012. 

  1012. <a name="l00980"></a>00980 <span class="comment"> uip_ipaddr(&amp;ipaddr1, 192,16,1,2);</span>
    1013. 

  1013. <a name="l00981"></a>00981 <span class="comment"> uip_ipaddr_copy(&amp;ipaddr2, &amp;ipaddr1);</span>
    1014. 

  1014. <a name="l00982"></a>00982 <span class="comment"> \endcode</span>
    1015. 

  1015. <a name="l00983"></a>00983 <span class="comment"> *</span>
    1016. 

  1016. <a name="l00984"></a>00984 <span class="comment"> * \param dest The destination for the copy.</span>
    1017. 

  1017. <a name="l00985"></a>00985 <span class="comment"> * \param src The source from where to copy.</span>
    1018. 

  1018. <a name="l00986"></a>00986 <span class="comment"> *</span>
    1019. 

  1019. <a name="l00987"></a>00987 <span class="comment"> * \hideinitializer</span>
    1020. 

  1020. <a name="l00988"></a>00988 <span class="comment"> */</span>
    1021. 

  1021. <a name="l00989"></a>00989 <span class="preprocessor">#ifndef uip_ipaddr_copy</span>
    1022. 

  1022. <a name="l00990"></a><a class="code" href="a01576.html#ga769512993b7b27271909d6daa4748b60">00990</a> <span class="preprocessor"></span><span class="preprocessor">#define uip_ipaddr_copy(dest, src) (*(dest) = *(src))</span>
    1023. 

  1023. <a name="l00991"></a>00991 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    1024. 

  1024. <a name="l00992"></a>00992 <span class="preprocessor"></span><span class="comment"></span>
    1025. 

  1025. <a name="l00993"></a>00993 <span class="comment">/**</span>
    1026. 

  1026. <a name="l00994"></a>00994 <span class="comment"> * Compare two IP addresses</span>
    1027. 

  1027. <a name="l00995"></a>00995 <span class="comment"> *</span>
    1028. 

  1028. <a name="l00996"></a>00996 <span class="comment"> * Compares two IP addresses.</span>
    1029. 

  1029. <a name="l00997"></a>00997 <span class="comment"> *</span>
    1030. 

  1030. <a name="l00998"></a>00998 <span class="comment"> * Example:</span>
    1031. 

  1031. <a name="l00999"></a>00999 <span class="comment"> \code</span>
    1032. 

  1032. <a name="l01000"></a>01000 <span class="comment"> uip_ipaddr_t ipaddr1, ipaddr2;</span>
    1033. 

  1033. <a name="l01001"></a>01001 <span class="comment"></span>
    1034. 

  1034. <a name="l01002"></a>01002 <span class="comment"> uip_ipaddr(&amp;ipaddr1, 192,16,1,2);</span>
    1035. 

  1035. <a name="l01003"></a>01003 <span class="comment"> if(uip_ipaddr_cmp(&amp;ipaddr2, &amp;ipaddr1)) {</span>
    1036. 

  1036. <a name="l01004"></a>01004 <span class="comment"> printf(&quot;They are the same&quot;);</span>
    1037. 

  1037. <a name="l01005"></a>01005 <span class="comment"> }</span>
    1038. 

  1038. <a name="l01006"></a>01006 <span class="comment"> \endcode</span>
    1039. 

  1039. <a name="l01007"></a>01007 <span class="comment"> *</span>
    1040. 

  1040. <a name="l01008"></a>01008 <span class="comment"> * \param addr1 The first IP address.</span>
    1041. 

  1041. <a name="l01009"></a>01009 <span class="comment"> * \param addr2 The second IP address.</span>
    1042. 

  1042. <a name="l01010"></a>01010 <span class="comment"> *</span>
    1043. 

  1043. <a name="l01011"></a>01011 <span class="comment"> * \hideinitializer</span>
    1044. 

  1044. <a name="l01012"></a>01012 <span class="comment"> */</span>
    1045. 

  1045. <a name="l01013"></a>01013 <span class="preprocessor">#if !UIP_CONF_IPV6</span>
    1046. 

  1046. <a name="l01014"></a><a class="code" href="a01576.html#ga210e629f7252e4bc8458cbdf260b3318">01014</a> <span class="preprocessor"></span><span class="preprocessor">#define uip_ipaddr_cmp(addr1, addr2) ((addr1)-&gt;u16[0] == (addr2)-&gt;u16[0] &amp;&amp; \</span>
    1047. 

  1047. <a name="l01015"></a>01015 <span class="preprocessor">                                      (addr1)-&gt;u16[1] == (addr2)-&gt;u16[1])</span>
    1048. 

  1048. <a name="l01016"></a>01016 <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* !UIP_CONF_IPV6 */</span>
    1049. 

  1049. <a name="l01017"></a>01017 <span class="preprocessor">#define uip_ipaddr_cmp(addr1, addr2) (memcmp(addr1, addr2, sizeof(uip_ip6addr_t)) == 0)</span>
    1050. 

  1050. <a name="l01018"></a>01018 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* !UIP_CONF_IPV6 */</span>
    1051. 

  1051. <a name="l01019"></a>01019 <span class="comment"></span>
    1052. 

  1052. <a name="l01020"></a>01020 <span class="comment">/**</span>
    1053. 

  1053. <a name="l01021"></a>01021 <span class="comment"> * Compare two IP addresses with netmasks</span>
    1054. 

  1054. <a name="l01022"></a>01022 <span class="comment"> *</span>
    1055. 

  1055. <a name="l01023"></a>01023 <span class="comment"> * Compares two IP addresses with netmasks. The masks are used to mask</span>
    1056. 

  1056. <a name="l01024"></a>01024 <span class="comment"> * out the bits that are to be compared.</span>
    1057. 

  1057. <a name="l01025"></a>01025 <span class="comment"> *</span>
    1058. 

  1058. <a name="l01026"></a>01026 <span class="comment"> * Example:</span>
    1059. 

  1059. <a name="l01027"></a>01027 <span class="comment"> \code</span>
    1060. 

  1060. <a name="l01028"></a>01028 <span class="comment"> uip_ipaddr_t ipaddr1, ipaddr2, mask;</span>
    1061. 

  1061. <a name="l01029"></a>01029 <span class="comment"></span>
    1062. 

  1062. <a name="l01030"></a>01030 <span class="comment"> uip_ipaddr(&amp;mask, 255,255,255,0);</span>
    1063. 

  1063. <a name="l01031"></a>01031 <span class="comment"> uip_ipaddr(&amp;ipaddr1, 192,16,1,2);</span>
    1064. 

  1064. <a name="l01032"></a>01032 <span class="comment"> uip_ipaddr(&amp;ipaddr2, 192,16,1,3);</span>
    1065. 

  1065. <a name="l01033"></a>01033 <span class="comment"> if(uip_ipaddr_maskcmp(&amp;ipaddr1, &amp;ipaddr2, &amp;mask)) {</span>
    1066. 

  1066. <a name="l01034"></a>01034 <span class="comment"> printf(&quot;They are the same&quot;);</span>
    1067. 

  1067. <a name="l01035"></a>01035 <span class="comment"> }</span>
    1068. 

  1068. <a name="l01036"></a>01036 <span class="comment"> \endcode</span>
    1069. 

  1069. <a name="l01037"></a>01037 <span class="comment"> *</span>
    1070. 

  1070. <a name="l01038"></a>01038 <span class="comment"> * \param addr1 The first IP address.</span>
    1071. 

  1071. <a name="l01039"></a>01039 <span class="comment"> * \param addr2 The second IP address.</span>
    1072. 

  1072. <a name="l01040"></a>01040 <span class="comment"> * \param mask The netmask.</span>
    1073. 

  1073. <a name="l01041"></a>01041 <span class="comment"> *</span>
    1074. 

  1074. <a name="l01042"></a>01042 <span class="comment"> * \hideinitializer</span>
    1075. 

  1075. <a name="l01043"></a>01043 <span class="comment"> */</span>
    1076. 

  1076. <a name="l01044"></a>01044 <span class="preprocessor">#if !UIP_CONF_IPV6</span>
    1077. 

  1077. <a name="l01045"></a><a class="code" href="a01576.html#ga6b16e0bac41821c1fbe0c267071642f0">01045</a> <span class="preprocessor"></span><span class="preprocessor">#define uip_ipaddr_maskcmp(addr1, addr2, mask)          \</span>
    1078. 

  1078. <a name="l01046"></a>01046 <span class="preprocessor">  (((((u16_t *)addr1)[0] &amp; ((u16_t *)mask)[0]) ==       \</span>
    1079. 

  1079. <a name="l01047"></a>01047 <span class="preprocessor">    (((u16_t *)addr2)[0] &amp; ((u16_t *)mask)[0])) &amp;&amp;      \</span>
    1080. 

  1080. <a name="l01048"></a>01048 <span class="preprocessor">   ((((u16_t *)addr1)[1] &amp; ((u16_t *)mask)[1]) ==       \</span>
    1081. 

  1081. <a name="l01049"></a>01049 <span class="preprocessor">    (((u16_t *)addr2)[1] &amp; ((u16_t *)mask)[1])))</span>
    1082. 

  1082. <a name="l01050"></a>01050 <span class="preprocessor"></span><span class="preprocessor">#else</span>
    1083. 

  1083. <a name="l01051"></a>01051 <span class="preprocessor"></span><span class="preprocessor">#define uip_ipaddr_prefixcmp(addr1, addr2, length) (memcmp(addr1, addr2, length&gt;&gt;3) == 0)</span>
    1084. 

  1084. <a name="l01052"></a>01052 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    1085. 

  1085. <a name="l01053"></a>01053 <span class="preprocessor"></span>
    1086. 

  1086. <a name="l01054"></a>01054 <span class="comment"></span>
    1087. 

  1087. <a name="l01055"></a>01055 <span class="comment">/**</span>
    1088. 

  1088. <a name="l01056"></a>01056 <span class="comment"> * Check if an address is a broadcast address for a network.</span>
    1089. 

  1089. <a name="l01057"></a>01057 <span class="comment"> *</span>
    1090. 

  1090. <a name="l01058"></a>01058 <span class="comment"> * Checks if an address is the broadcast address for a network. The</span>
    1091. 

  1091. <a name="l01059"></a>01059 <span class="comment"> * network is defined by an IP address that is on the network and the</span>
    1092. 

  1092. <a name="l01060"></a>01060 <span class="comment"> * network&apos;s netmask.</span>
    1093. 

  1093. <a name="l01061"></a>01061 <span class="comment"> *</span>
    1094. 

  1094. <a name="l01062"></a>01062 <span class="comment"> * \param addr The IP address.</span>
    1095. 

  1095. <a name="l01063"></a>01063 <span class="comment"> * \param netaddr The network&apos;s IP address.</span>
    1096. 

  1096. <a name="l01064"></a>01064 <span class="comment"> * \param netmask The network&apos;s netmask.</span>
    1097. 

  1097. <a name="l01065"></a>01065 <span class="comment"> *</span>
    1098. 

  1098. <a name="l01066"></a>01066 <span class="comment"> * \hideinitializer</span>
    1099. 

  1099. <a name="l01067"></a>01067 <span class="comment"> */</span>
    1100. 

  1100. <a name="l01068"></a>01068 <span class="comment">/*#define uip_ipaddr_isbroadcast(addr, netaddr, netmask)</span>
    1101. 

  1101. <a name="l01069"></a>01069 <span class="comment">  ((uip_ipaddr_t *)(addr)).u16 &amp; ((uip_ipaddr_t *)(addr)).u16*/</span>
    1102. 

  1102. <a name="l01070"></a>01070 
    1103. 

  1103. <a name="l01071"></a>01071 
    1104. 

  1104. <a name="l01072"></a>01072 <span class="comment"></span>
    1105. 

  1105. <a name="l01073"></a>01073 <span class="comment">/**</span>
    1106. 

  1106. <a name="l01074"></a>01074 <span class="comment"> * Mask out the network part of an IP address.</span>
    1107. 

  1107. <a name="l01075"></a>01075 <span class="comment"> *</span>
    1108. 

  1108. <a name="l01076"></a>01076 <span class="comment"> * Masks out the network part of an IP address, given the address and</span>
    1109. 

  1109. <a name="l01077"></a>01077 <span class="comment"> * the netmask.</span>
    1110. 

  1110. <a name="l01078"></a>01078 <span class="comment"> *</span>
    1111. 

  1111. <a name="l01079"></a>01079 <span class="comment"> * Example:</span>
    1112. 

  1112. <a name="l01080"></a>01080 <span class="comment"> \code</span>
    1113. 

  1113. <a name="l01081"></a>01081 <span class="comment"> uip_ipaddr_t ipaddr1, ipaddr2, netmask;</span>
    1114. 

  1114. <a name="l01082"></a>01082 <span class="comment"></span>
    1115. 

  1115. <a name="l01083"></a>01083 <span class="comment"> uip_ipaddr(&amp;ipaddr1, 192,16,1,2);</span>
    1116. 

  1116. <a name="l01084"></a>01084 <span class="comment"> uip_ipaddr(&amp;netmask, 255,255,255,0);</span>
    1117. 

  1117. <a name="l01085"></a>01085 <span class="comment"> uip_ipaddr_mask(&amp;ipaddr2, &amp;ipaddr1, &amp;netmask);</span>
    1118. 

  1118. <a name="l01086"></a>01086 <span class="comment"> \endcode</span>
    1119. 

  1119. <a name="l01087"></a>01087 <span class="comment"> *</span>
    1120. 

  1120. <a name="l01088"></a>01088 <span class="comment"> * In the example above, the variable &quot;ipaddr2&quot; will contain the IP</span>
    1121. 

  1121. <a name="l01089"></a>01089 <span class="comment"> * address 192.168.1.0.</span>
    1122. 

  1122. <a name="l01090"></a>01090 <span class="comment"> *</span>
    1123. 

  1123. <a name="l01091"></a>01091 <span class="comment"> * \param dest Where the result is to be placed.</span>
    1124. 

  1124. <a name="l01092"></a>01092 <span class="comment"> * \param src The IP address.</span>
    1125. 

  1125. <a name="l01093"></a>01093 <span class="comment"> * \param mask The netmask.</span>
    1126. 

  1126. <a name="l01094"></a>01094 <span class="comment"> *</span>
    1127. 

  1127. <a name="l01095"></a>01095 <span class="comment"> * \hideinitializer</span>
    1128. 

  1128. <a name="l01096"></a>01096 <span class="comment"> */</span>
    1129. 

  1129. <a name="l01097"></a><a class="code" href="a01576.html#ga969d7fff37a979737da045e0d538a9bd">01097</a> <span class="preprocessor">#define uip_ipaddr_mask(dest, src, mask) do {                           \</span>
    1130. 

  1130. <a name="l01098"></a>01098 <span class="preprocessor">    ((u16_t *)dest)[0] = ((u16_t *)src)[0] &amp; ((u16_t *)mask)[0];        \</span>
    1131. 

  1131. <a name="l01099"></a>01099 <span class="preprocessor">    ((u16_t *)dest)[1] = ((u16_t *)src)[1] &amp; ((u16_t *)mask)[1];        \</span>
    1132. 

  1132. <a name="l01100"></a>01100 <span class="preprocessor">  } while(0)</span>
    1133. 

  1133. <a name="l01101"></a>01101 <span class="preprocessor"></span><span class="comment"></span>
    1134. 

  1134. <a name="l01102"></a>01102 <span class="comment">/**</span>
    1135. 

  1135. <a name="l01103"></a>01103 <span class="comment"> * Pick the first octet of an IP address.</span>
    1136. 

  1136. <a name="l01104"></a>01104 <span class="comment"> *</span>
    1137. 

  1137. <a name="l01105"></a>01105 <span class="comment"> * Picks out the first octet of an IP address.</span>
    1138. 

  1138. <a name="l01106"></a>01106 <span class="comment"> *</span>
    1139. 

  1139. <a name="l01107"></a>01107 <span class="comment"> * Example:</span>
    1140. 

  1140. <a name="l01108"></a>01108 <span class="comment"> \code</span>
    1141. 

  1141. <a name="l01109"></a>01109 <span class="comment"> uip_ipaddr_t ipaddr;</span>
    1142. 

  1142. <a name="l01110"></a>01110 <span class="comment"> u8_t octet;</span>
    1143. 

  1143. <a name="l01111"></a>01111 <span class="comment"></span>
    1144. 

  1144. <a name="l01112"></a>01112 <span class="comment"> uip_ipaddr(&amp;ipaddr, 1,2,3,4);</span>
    1145. 

  1145. <a name="l01113"></a>01113 <span class="comment"> octet = uip_ipaddr1(&amp;ipaddr);</span>
    1146. 

  1146. <a name="l01114"></a>01114 <span class="comment"> \endcode</span>
    1147. 

  1147. <a name="l01115"></a>01115 <span class="comment"> *</span>
    1148. 

  1148. <a name="l01116"></a>01116 <span class="comment"> * In the example above, the variable &quot;octet&quot; will contain the value 1.</span>
    1149. 

  1149. <a name="l01117"></a>01117 <span class="comment"> *</span>
    1150. 

  1150. <a name="l01118"></a>01118 <span class="comment"> * \hideinitializer</span>
    1151. 

  1151. <a name="l01119"></a>01119 <span class="comment"> */</span>
    1152. 

  1152. <a name="l01120"></a><a class="code" href="a01576.html#ga22fa0681cd463191d7a01fe85d86996f">01120</a> <span class="preprocessor">#define uip_ipaddr1(addr) ((addr)-&gt;u8[0])</span>
    1153. 

  1153. <a name="l01121"></a>01121 <span class="preprocessor"></span><span class="comment"></span>
    1154. 

  1154. <a name="l01122"></a>01122 <span class="comment">/**</span>
    1155. 

  1155. <a name="l01123"></a>01123 <span class="comment"> * Pick the second octet of an IP address.</span>
    1156. 

  1156. <a name="l01124"></a>01124 <span class="comment"> *</span>
    1157. 

  1157. <a name="l01125"></a>01125 <span class="comment"> * Picks out the second octet of an IP address.</span>
    1158. 

  1158. <a name="l01126"></a>01126 <span class="comment"> *</span>
    1159. 

  1159. <a name="l01127"></a>01127 <span class="comment"> * Example:</span>
    1160. 

  1160. <a name="l01128"></a>01128 <span class="comment"> \code</span>
    1161. 

  1161. <a name="l01129"></a>01129 <span class="comment"> uip_ipaddr_t ipaddr;</span>
    1162. 

  1162. <a name="l01130"></a>01130 <span class="comment"> u8_t octet;</span>
    1163. 

  1163. <a name="l01131"></a>01131 <span class="comment"></span>
    1164. 

  1164. <a name="l01132"></a>01132 <span class="comment"> uip_ipaddr(&amp;ipaddr, 1,2,3,4);</span>
    1165. 

  1165. <a name="l01133"></a>01133 <span class="comment"> octet = uip_ipaddr2(&amp;ipaddr);</span>
    1166. 

  1166. <a name="l01134"></a>01134 <span class="comment"> \endcode</span>
    1167. 

  1167. <a name="l01135"></a>01135 <span class="comment"> *</span>
    1168. 

  1168. <a name="l01136"></a>01136 <span class="comment"> * In the example above, the variable &quot;octet&quot; will contain the value 2.</span>
    1169. 

  1169. <a name="l01137"></a>01137 <span class="comment"> *</span>
    1170. 

  1170. <a name="l01138"></a>01138 <span class="comment"> * \hideinitializer</span>
    1171. 

  1171. <a name="l01139"></a>01139 <span class="comment"> */</span>
    1172. 

  1172. <a name="l01140"></a><a class="code" href="a01576.html#gaffcd2fbe181e2aaefbf970551c302af5">01140</a> <span class="preprocessor">#define uip_ipaddr2(addr) ((addr)-&gt;u8[1])</span>
    1173. 

  1173. <a name="l01141"></a>01141 <span class="preprocessor"></span><span class="comment"></span>
    1174. 

  1174. <a name="l01142"></a>01142 <span class="comment">/**</span>
    1175. 

  1175. <a name="l01143"></a>01143 <span class="comment"> * Pick the third octet of an IP address.</span>
    1176. 

  1176. <a name="l01144"></a>01144 <span class="comment"> *</span>
    1177. 

  1177. <a name="l01145"></a>01145 <span class="comment"> * Picks out the third octet of an IP address.</span>
    1178. 

  1178. <a name="l01146"></a>01146 <span class="comment"> *</span>
    1179. 

  1179. <a name="l01147"></a>01147 <span class="comment"> * Example:</span>
    1180. 

  1180. <a name="l01148"></a>01148 <span class="comment"> \code</span>
    1181. 

  1181. <a name="l01149"></a>01149 <span class="comment"> uip_ipaddr_t ipaddr;</span>
    1182. 

  1182. <a name="l01150"></a>01150 <span class="comment"> u8_t octet;</span>
    1183. 

  1183. <a name="l01151"></a>01151 <span class="comment"></span>
    1184. 

  1184. <a name="l01152"></a>01152 <span class="comment"> uip_ipaddr(&amp;ipaddr, 1,2,3,4);</span>
    1185. 

  1185. <a name="l01153"></a>01153 <span class="comment"> octet = uip_ipaddr3(&amp;ipaddr);</span>
    1186. 

  1186. <a name="l01154"></a>01154 <span class="comment"> \endcode</span>
    1187. 

  1187. <a name="l01155"></a>01155 <span class="comment"> *</span>
    1188. 

  1188. <a name="l01156"></a>01156 <span class="comment"> * In the example above, the variable &quot;octet&quot; will contain the value 3.</span>
    1189. 

  1189. <a name="l01157"></a>01157 <span class="comment"> *</span>
    1190. 

  1190. <a name="l01158"></a>01158 <span class="comment"> * \hideinitializer</span>
    1191. 

  1191. <a name="l01159"></a>01159 <span class="comment"> */</span>
    1192. 

  1192. <a name="l01160"></a><a class="code" href="a01576.html#gae23534479ead15af8ff08ace26a47fb5">01160</a> <span class="preprocessor">#define uip_ipaddr3(addr) ((addr)-&gt;u8[2])</span>
    1193. 

  1193. <a name="l01161"></a>01161 <span class="preprocessor"></span><span class="comment"></span>
    1194. 

  1194. <a name="l01162"></a>01162 <span class="comment">/**</span>
    1195. 

  1195. <a name="l01163"></a>01163 <span class="comment"> * Pick the fourth octet of an IP address.</span>
    1196. 

  1196. <a name="l01164"></a>01164 <span class="comment"> *</span>
    1197. 

  1197. <a name="l01165"></a>01165 <span class="comment"> * Picks out the fourth octet of an IP address.</span>
    1198. 

  1198. <a name="l01166"></a>01166 <span class="comment"> *</span>
    1199. 

  1199. <a name="l01167"></a>01167 <span class="comment"> * Example:</span>
    1200. 

  1200. <a name="l01168"></a>01168 <span class="comment"> \code</span>
    1201. 

  1201. <a name="l01169"></a>01169 <span class="comment"> uip_ipaddr_t ipaddr;</span>
    1202. 

  1202. <a name="l01170"></a>01170 <span class="comment"> u8_t octet;</span>
    1203. 

  1203. <a name="l01171"></a>01171 <span class="comment"></span>
    1204. 

  1204. <a name="l01172"></a>01172 <span class="comment"> uip_ipaddr(&amp;ipaddr, 1,2,3,4);</span>
    1205. 

  1205. <a name="l01173"></a>01173 <span class="comment"> octet = uip_ipaddr4(&amp;ipaddr);</span>
    1206. 

  1206. <a name="l01174"></a>01174 <span class="comment"> \endcode</span>
    1207. 

  1207. <a name="l01175"></a>01175 <span class="comment"> *</span>
    1208. 

  1208. <a name="l01176"></a>01176 <span class="comment"> * In the example above, the variable &quot;octet&quot; will contain the value 4.</span>
    1209. 

  1209. <a name="l01177"></a>01177 <span class="comment"> *</span>
    1210. 

  1210. <a name="l01178"></a>01178 <span class="comment"> * \hideinitializer</span>
    1211. 

  1211. <a name="l01179"></a>01179 <span class="comment"> */</span>
    1212. 

  1212. <a name="l01180"></a><a class="code" href="a01576.html#ga165b603ec150e26efec7be199c9c2901">01180</a> <span class="preprocessor">#define uip_ipaddr4(addr) ((addr)-&gt;u8[3])</span>
    1213. 

  1213. <a name="l01181"></a>01181 <span class="preprocessor"></span><span class="comment"></span>
    1214. 

  1214. <a name="l01182"></a>01182 <span class="comment">/**</span>
    1215. 

  1215. <a name="l01183"></a>01183 <span class="comment"> * Convert 16-bit quantity from host byte order to network byte order.</span>
    1216. 

  1216. <a name="l01184"></a>01184 <span class="comment"> *</span>
    1217. 

  1217. <a name="l01185"></a>01185 <span class="comment"> * This macro is primarily used for converting constants from host</span>
    1218. 

  1218. <a name="l01186"></a>01186 <span class="comment"> * byte order to network byte order. For converting variables to</span>
    1219. 

  1219. <a name="l01187"></a>01187 <span class="comment"> * network byte order, use the uip_htons() function instead.</span>
    1220. 

  1220. <a name="l01188"></a>01188 <span class="comment"> *</span>
    1221. 

  1221. <a name="l01189"></a>01189 <span class="comment"> * \hideinitializer</span>
    1222. 

  1222. <a name="l01190"></a>01190 <span class="comment"> */</span>
    1223. 

  1223. <a name="l01191"></a>01191 <span class="preprocessor">#ifndef UIP_HTONS</span>
    1224. 

  1224. <a name="l01192"></a>01192 <span class="preprocessor"></span><span class="preprocessor">#   if UIP_BYTE_ORDER == UIP_BIG_ENDIAN</span>
    1225. 

  1225. <a name="l01193"></a><a class="code" href="a01576.html#ga703ee949a28cb00b5f8ee54bfe664e8d">01193</a> <span class="preprocessor"></span><span class="preprocessor">#      define UIP_HTONS(n) (n)</span>
    1226. 

  1226. <a name="l01194"></a>01194 <span class="preprocessor"></span><span class="preprocessor">#      define UIP_HTONL(n) (n)</span>
    1227. 

  1227. <a name="l01195"></a>01195 <span class="preprocessor"></span><span class="preprocessor">#   else </span><span class="comment">/* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */</span>
    1228. 

  1228. <a name="l01196"></a>01196 <span class="preprocessor">#      define UIP_HTONS(n) (u16_t)((((u16_t) (n)) &lt;&lt; 8) | (((u16_t) (n)) &gt;&gt; 8))</span>
    1229. 

  1229. <a name="l01197"></a>01197 <span class="preprocessor"></span><span class="preprocessor">#      define UIP_HTONL(n) (((u32_t)UIP_HTONS(n) &lt;&lt; 16) | UIP_HTONS((u32_t)(n) &gt;&gt; 16))</span>
    1230. 

  1230. <a name="l01198"></a>01198 <span class="preprocessor"></span><span class="preprocessor">#   endif </span><span class="comment">/* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */</span>
    1231. 

  1231. <a name="l01199"></a>01199 <span class="preprocessor">#else</span>
    1232. 

  1232. <a name="l01200"></a>01200 <span class="preprocessor"></span><span class="preprocessor">#error &quot;UIP_HTONS already defined!&quot;</span>
    1233. 

  1233. <a name="l01201"></a>01201 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* UIP_HTONS */</span>
    1234. 

  1234. <a name="l01202"></a>01202 <span class="comment"></span>
    1235. 

  1235. <a name="l01203"></a>01203 <span class="comment">/**</span>
    1236. 

  1236. <a name="l01204"></a>01204 <span class="comment"> * Convert 16-bit quantity from host byte order to network byte order.</span>
    1237. 

  1237. <a name="l01205"></a>01205 <span class="comment"> *</span>
    1238. 

  1238. <a name="l01206"></a>01206 <span class="comment"> * This function is primarily used for converting variables from host</span>
    1239. 

  1239. <a name="l01207"></a>01207 <span class="comment"> * byte order to network byte order. For converting constants to</span>
    1240. 

  1240. <a name="l01208"></a>01208 <span class="comment"> * network byte order, use the UIP_HTONS() macro instead.</span>
    1241. 

  1241. <a name="l01209"></a>01209 <span class="comment"> */</span>
    1242. 

  1242. <a name="l01210"></a>01210 <span class="preprocessor">#ifndef uip_htons</span>
    1243. 

  1243. <a name="l01211"></a>01211 <span class="preprocessor"></span>CCIF <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a01684.html#gae4394b6b3cd81f73b0e64a93e0558e00" title="Convert 16-bit quantity from host byte order to network byte order.">uip_htons</a>(<a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> val);
    1244. 

  1244. <a name="l01212"></a>01212 <span class="preprocessor">#endif </span><span class="comment">/* uip_htons */</span>
    1245. 

  1245. <a name="l01213"></a>01213 <span class="preprocessor">#ifndef uip_ntohs</span>
    1246. 

  1246. <a name="l01214"></a>01214 <span class="preprocessor"></span><span class="preprocessor">#define uip_ntohs uip_htons</span>
    1247. 

  1247. <a name="l01215"></a>01215 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    1248. 

  1248. <a name="l01216"></a>01216 <span class="preprocessor"></span>
    1249. 

  1249. <a name="l01217"></a>01217 <span class="preprocessor">#ifndef uip_htonl</span>
    1250. 

  1250. <a name="l01218"></a>01218 <span class="preprocessor"></span>CCIF <a class="code" href="a01668.html#ga4c14294869aceba3ef9d4c0c302d0f33" title="The 32-bit unsigned data type.">u32_t</a> uip_htonl(<a class="code" href="a01668.html#ga4c14294869aceba3ef9d4c0c302d0f33" title="The 32-bit unsigned data type.">u32_t</a> val);
    1251. 

  1251. <a name="l01219"></a>01219 <span class="preprocessor">#endif </span><span class="comment">/* uip_htonl */</span>
    1252. 

  1252. <a name="l01220"></a>01220 <span class="preprocessor">#ifndef uip_ntohl</span>
    1253. 

  1253. <a name="l01221"></a>01221 <span class="preprocessor"></span><span class="preprocessor">#define uip_ntohl uip_htonl</span>
    1254. 

  1254. <a name="l01222"></a>01222 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    1255. 

  1255. <a name="l01223"></a>01223 <span class="preprocessor"></span><span class="comment"></span>
    1256. 

  1256. <a name="l01224"></a>01224 <span class="comment">/** @} */</span>
    1257. 

  1257. <a name="l01225"></a>01225 <span class="comment"></span>
    1258. 

  1258. <a name="l01226"></a>01226 <span class="comment">/**</span>
    1259. 

  1259. <a name="l01227"></a>01227 <span class="comment"> * Pointer to the application data in the packet buffer.</span>
    1260. 

  1260. <a name="l01228"></a>01228 <span class="comment"> *</span>
    1261. 

  1261. <a name="l01229"></a>01229 <span class="comment"> * This pointer points to the application data when the application is</span>
    1262. 

  1262. <a name="l01230"></a>01230 <span class="comment"> * called. If the application wishes to send data, the application may</span>
    1263. 

  1263. <a name="l01231"></a>01231 <span class="comment"> * use this space to write the data into before calling uip_send().</span>
    1264. 

  1264. <a name="l01232"></a>01232 <span class="comment"> */</span>
    1265. 

  1265. <a name="l01233"></a>01233 CCIF <span class="keyword">extern</span> <span class="keywordtype">void</span> *<a class="code" href="a01684.html#ga561b8eda32e059d4e7397f776268cc63" title="Pointer to the application data in the packet buffer.">uip_appdata</a>;
    1266. 

  1266. <a name="l01234"></a>01234 
    1267. 

  1267. <a name="l01235"></a>01235 <span class="preprocessor">#if UIP_URGDATA &gt; 0</span>
    1268. 

  1268. <a name="l01236"></a>01236 <span class="preprocessor"></span><span class="comment">/* u8_t *uip_urgdata:</span>
    1269. 

  1269. <a name="l01237"></a>01237 <span class="comment"> *</span>
    1270. 

  1270. <a name="l01238"></a>01238 <span class="comment"> * This pointer points to any urgent data that has been received. Only</span>
    1271. 

  1271. <a name="l01239"></a>01239 <span class="comment"> * present if compiled with support for urgent data (UIP_URGDATA).</span>
    1272. 

  1272. <a name="l01240"></a>01240 <span class="comment"> */</span>
    1273. 

  1273. <a name="l01241"></a>01241 <span class="keyword">extern</span> <span class="keywordtype">void</span> *uip_urgdata;
    1274. 

  1274. <a name="l01242"></a>01242 <span class="preprocessor">#endif </span><span class="comment">/* UIP_URGDATA &gt; 0 */</span>
    1275. 

  1275. <a name="l01243"></a>01243 
    1276. 

  1276. <a name="l01244"></a>01244 <span class="comment"></span>
    1277. 

  1277. <a name="l01245"></a>01245 <span class="comment">/**</span>
    1278. 

  1278. <a name="l01246"></a>01246 <span class="comment"> * \defgroup uipdrivervars Variables used in uIP device drivers</span>
    1279. 

  1279. <a name="l01247"></a>01247 <span class="comment"> * @{</span>
    1280. 

  1280. <a name="l01248"></a>01248 <span class="comment"> *</span>
    1281. 

  1281. <a name="l01249"></a>01249 <span class="comment"> * uIP has a few global variables that are used in device drivers for</span>
    1282. 

  1282. <a name="l01250"></a>01250 <span class="comment"> * uIP.</span>
    1283. 

  1283. <a name="l01251"></a>01251 <span class="comment"> */</span>
    1284. 

  1284. <a name="l01252"></a>01252 <span class="comment"></span>
    1285. 

  1285. <a name="l01253"></a>01253 <span class="comment">/**</span>
    1286. 

  1286. <a name="l01254"></a>01254 <span class="comment"> * The length of the packet in the uip_buf buffer.</span>
    1287. 

  1287. <a name="l01255"></a>01255 <span class="comment"> *</span>
    1288. 

  1288. <a name="l01256"></a>01256 <span class="comment"> * The global variable uip_len holds the length of the packet in the</span>
    1289. 

  1289. <a name="l01257"></a>01257 <span class="comment"> * uip_buf buffer.</span>
    1290. 

  1290. <a name="l01258"></a>01258 <span class="comment"> *</span>
    1291. 

  1291. <a name="l01259"></a>01259 <span class="comment"> * When the network device driver calls the uIP input function,</span>
    1292. 

  1292. <a name="l01260"></a>01260 <span class="comment"> * uip_len should be set to the length of the packet in the uip_buf</span>
    1293. 

  1293. <a name="l01261"></a>01261 <span class="comment"> * buffer.</span>
    1294. 

  1294. <a name="l01262"></a>01262 <span class="comment"> *</span>
    1295. 

  1295. <a name="l01263"></a>01263 <span class="comment"> * When sending packets, the device driver should use the contents of</span>
    1296. 

  1296. <a name="l01264"></a>01264 <span class="comment"> * the uip_len variable to determine the length of the outgoing</span>
    1297. 

  1297. <a name="l01265"></a>01265 <span class="comment"> * packet.</span>
    1298. 

  1298. <a name="l01266"></a>01266 <span class="comment"> *</span>
    1299. 

  1299. <a name="l01267"></a>01267 <span class="comment"> */</span>
    1300. 

  1300. <a name="l01268"></a>01268 CCIF <span class="keyword">extern</span> <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a01684.html#ga12a33f0c09711167bdf3dd7d7cf8c5a1" title="The length of the packet in the uip_buf buffer.">uip_len</a>;
    1301. 

  1301. <a name="l01269"></a>01269 <span class="comment"></span>
    1302. 

  1302. <a name="l01270"></a>01270 <span class="comment">/**</span>
    1303. 

  1303. <a name="l01271"></a>01271 <span class="comment"> * The length of the extension headers</span>
    1304. 

  1304. <a name="l01272"></a>01272 <span class="comment"> */</span>
    1305. 

  1305. <a name="l01273"></a>01273 <span class="keyword">extern</span> <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a01577.html#ga1c9ed2d0cf3e1b814dc19b76487bed50" title="The length of the extension headers.">uip_ext_len</a>;<span class="comment"></span>
    1306. 

  1306. <a name="l01274"></a>01274 <span class="comment">/** @} */</span>
    1307. 

  1307. <a name="l01275"></a>01275 
    1308. 

  1308. <a name="l01276"></a>01276 <span class="preprocessor">#if UIP_URGDATA &gt; 0</span>
    1309. 

  1309. <a name="l01277"></a>01277 <span class="preprocessor"></span><span class="keyword">extern</span> <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> uip_urglen, uip_surglen;
    1310. 

  1310. <a name="l01278"></a>01278 <span class="preprocessor">#endif </span><span class="comment">/* UIP_URGDATA &gt; 0 */</span>
    1311. 

  1311. <a name="l01279"></a>01279 
    1312. 

  1312. <a name="l01280"></a>01280 <span class="comment"></span>
    1313. 

  1313. <a name="l01281"></a>01281 <span class="comment">/**</span>
    1314. 

  1314. <a name="l01282"></a>01282 <span class="comment"> * Representation of a uIP TCP connection.</span>
    1315. 

  1315. <a name="l01283"></a>01283 <span class="comment"> *</span>
    1316. 

  1316. <a name="l01284"></a>01284 <span class="comment"> * The uip_conn structure is used for identifying a connection. All</span>
    1317. 

  1317. <a name="l01285"></a>01285 <span class="comment"> * but one field in the structure are to be considered read-only by an</span>
    1318. 

  1318. <a name="l01286"></a>01286 <span class="comment"> * application. The only exception is the appstate field whose purpose</span>
    1319. 

  1319. <a name="l01287"></a>01287 <span class="comment"> * is to let the application store application-specific state (e.g.,</span>
    1320. 

  1320. <a name="l01288"></a>01288 <span class="comment"> * file pointers) for the connection. The type of this field is</span>
    1321. 

  1321. <a name="l01289"></a>01289 <span class="comment"> * configured in the &quot;uipopt.h&quot; header file.</span>
    1322. 

  1322. <a name="l01290"></a>01290 <span class="comment"> */</span>
    1323. 

  1323. <a name="l01291"></a><a class="code" href="a00092.html">01291</a> <span class="keyword">struct </span><a class="code" href="a00092.html" title="Representation of a uIP TCP connection.">uip_conn</a> {
    1324. 

  1324. <a name="l01292"></a><a class="code" href="a00092.html#a79510aa86d3fa0a0fc6cfc49b1da7279">01292</a>   <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> <a class="code" href="a00092.html#a79510aa86d3fa0a0fc6cfc49b1da7279" title="The IP address of the remote host.">ripaddr</a>;   <span class="comment">/**&lt; The IP address of the remote host. */</span>
    1325. 

  1325. <a name="l01293"></a>01293   
    1326. 

  1326. <a name="l01294"></a><a class="code" href="a00092.html#a0cd09beee671e7e9efb0b4aced10249e">01294</a>   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00092.html#a0cd09beee671e7e9efb0b4aced10249e" title="The local TCP port, in network byte order.">lport</a>;        <span class="comment">/**&lt; The local TCP port, in network byte order. */</span>
    1327. 

  1327. <a name="l01295"></a><a class="code" href="a00092.html#a1df6aa054ef2fa634ac4c6f418228285">01295</a>   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00092.html#a1df6aa054ef2fa634ac4c6f418228285" title="The local remote TCP port, in network byte order.">rport</a>;        <span class="comment">/**&lt; The local remote TCP port, in network byte</span>
    1328. 

  1328. <a name="l01296"></a>01296 <span class="comment">                         order. */</span>
    1329. 

  1329. <a name="l01297"></a>01297   
    1330. 

  1330. <a name="l01298"></a><a class="code" href="a00092.html#a70297b3e6d4eaae7bd828cb50bd1efe3">01298</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00092.html#a70297b3e6d4eaae7bd828cb50bd1efe3" title="The sequence number that we expect to receive next.">rcv_nxt</a>[4];    <span class="comment">/**&lt; The sequence number that we expect to</span>
    1331. 

  1331. <a name="l01299"></a>01299 <span class="comment">                         receive next. */</span>
    1332. 

  1332. <a name="l01300"></a><a class="code" href="a00092.html#a8f6b08a5ba2a8d75ca7279e2056aa8c6">01300</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00092.html#a8f6b08a5ba2a8d75ca7279e2056aa8c6" title="The sequence number that was last sent by us.">snd_nxt</a>[4];    <span class="comment">/**&lt; The sequence number that was last sent by</span>
    1333. 

  1333. <a name="l01301"></a>01301 <span class="comment">                         us. */</span>
    1334. 

  1334. <a name="l01302"></a><a class="code" href="a00092.html#a0ef3ae2764714bf90620075c374c262e">01302</a>   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00092.html#a0ef3ae2764714bf90620075c374c262e" title="Length of the data that was previously sent.">len</a>;          <span class="comment">/**&lt; Length of the data that was previously sent. */</span>
    1335. 

  1335. <a name="l01303"></a><a class="code" href="a00092.html#a3347ef1b6e8581402445d1a0280c7a14">01303</a>   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00092.html#a3347ef1b6e8581402445d1a0280c7a14" title="Current maximum segment size for the connection.">mss</a>;          <span class="comment">/**&lt; Current maximum segment size for the</span>
    1336. 

  1336. <a name="l01304"></a>01304 <span class="comment">                         connection. */</span>
    1337. 

  1337. <a name="l01305"></a><a class="code" href="a00092.html#adb7a3fadb68df5fdd37e8b91a2c751ea">01305</a>   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00092.html#adb7a3fadb68df5fdd37e8b91a2c751ea" title="Initial maximum segment size for the connection.">initialmss</a>;   <span class="comment">/**&lt; Initial maximum segment size for the</span>
    1338. 

  1338. <a name="l01306"></a>01306 <span class="comment">                         connection. */</span>
    1339. 

  1339. <a name="l01307"></a><a class="code" href="a00092.html#aef661afb3aa82f0437d2ed8d3c20be76">01307</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00092.html#aef661afb3aa82f0437d2ed8d3c20be76" title="Retransmission time-out calculation state variable.">sa</a>;            <span class="comment">/**&lt; Retransmission time-out calculation state</span>
    1340. 

  1340. <a name="l01308"></a>01308 <span class="comment">                         variable. */</span>
    1341. 

  1341. <a name="l01309"></a><a class="code" href="a00092.html#aeb9fcbd3c9b0a795dcd63f33c323d65c">01309</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00092.html#aeb9fcbd3c9b0a795dcd63f33c323d65c" title="Retransmission time-out calculation state variable.">sv</a>;            <span class="comment">/**&lt; Retransmission time-out calculation state</span>
    1342. 

  1342. <a name="l01310"></a>01310 <span class="comment">                         variable. */</span>
    1343. 

  1343. <a name="l01311"></a><a class="code" href="a00092.html#ae3aa9cc25e45b663e6aabc54c013019e">01311</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00092.html#ae3aa9cc25e45b663e6aabc54c013019e" title="Retransmission time-out.">rto</a>;           <span class="comment">/**&lt; Retransmission time-out. */</span>
    1344. 

  1344. <a name="l01312"></a><a class="code" href="a00092.html#aa5f58074435cdc180f17de69651beebd">01312</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00092.html#aa5f58074435cdc180f17de69651beebd" title="TCP state and flags.">tcpstateflags</a>; <span class="comment">/**&lt; TCP state and flags. */</span>
    1345. 

  1345. <a name="l01313"></a><a class="code" href="a00092.html#a2d9732cf5752d30bd11cb25dc7d0c8d3">01313</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00086.html" title="A timer.">timer</a>;         <span class="comment">/**&lt; The retransmission timer. */</span>
    1346. 

  1346. <a name="l01314"></a><a class="code" href="a00092.html#a4289c59840b128f2f6526e9da2711d47">01314</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a00092.html#a4289c59840b128f2f6526e9da2711d47" title="The number of retransmissions for the last segment sent.">nrtx</a>;          <span class="comment">/**&lt; The number of retransmissions for the last</span>
    1347. 

  1347. <a name="l01315"></a>01315 <span class="comment">                         segment sent. */</span>
    1348. 

  1348. <a name="l01316"></a>01316 <span class="comment"></span>
    1349. 

  1349. <a name="l01317"></a>01317 <span class="comment">  /** The application state. */</span>
    1350. 

  1350. <a name="l01318"></a><a class="code" href="a00092.html#a97f9e1fda815bfb8b1f4577c355ade20">01318</a>   <a class="code" href="a01591.html#ga69646a81a922033c5281445a71f8ffed" title="The type of the application state that is to be stored in the uip_conn structure...">uip_tcp_appstate_t</a> <a class="code" href="a00092.html#a97f9e1fda815bfb8b1f4577c355ade20" title="The application state.">appstate</a>;
    1351. 

  1351. <a name="l01319"></a>01319 };
    1352. 

  1352. <a name="l01320"></a>01320 
    1353. 

  1353. <a name="l01321"></a>01321 <span class="comment"></span>
    1354. 

  1354. <a name="l01322"></a>01322 <span class="comment">/**</span>
    1355. 

  1355. <a name="l01323"></a>01323 <span class="comment"> * Pointer to the current TCP connection.</span>
    1356. 

  1356. <a name="l01324"></a>01324 <span class="comment"> *</span>
    1357. 

  1357. <a name="l01325"></a>01325 <span class="comment"> * The uip_conn pointer can be used to access the current TCP</span>
    1358. 

  1358. <a name="l01326"></a>01326 <span class="comment"> * connection.</span>
    1359. 

  1359. <a name="l01327"></a>01327 <span class="comment"> */</span>
    1360. 

  1360. <a name="l01328"></a>01328 
    1361. 

  1361. <a name="l01329"></a>01329 CCIF <span class="keyword">extern</span> <span class="keyword">struct </span><a class="code" href="a00092.html" title="Representation of a uIP TCP connection.">uip_conn</a> *<a class="code" href="a00092.html" title="Representation of a uIP TCP connection.">uip_conn</a>;
    1362. 

  1362. <a name="l01330"></a>01330 <span class="preprocessor">#if UIP_TCP</span>
    1363. 

  1363. <a name="l01331"></a>01331 <span class="preprocessor"></span><span class="comment">/* The array containing all uIP connections. */</span>
    1364. 

  1364. <a name="l01332"></a>01332 CCIF <span class="keyword">extern</span> <span class="keyword">struct </span>uip_conn uip_conns[<a class="code" href="a01585.html#gaf5fe83be78b78b9e7d9e7f1e34ab1cc5" title="The maximum number of simultaneously open TCP connections.">UIP_CONNS</a>];
    1365. 

  1365. <a name="l01333"></a>01333 <span class="preprocessor">#endif</span>
    1366. 

  1366. <a name="l01334"></a>01334 <span class="preprocessor"></span><span class="comment"></span>
    1367. 

  1367. <a name="l01335"></a>01335 <span class="comment">/**</span>
    1368. 

  1368. <a name="l01336"></a>01336 <span class="comment"> * \addtogroup uiparch</span>
    1369. 

  1369. <a name="l01337"></a>01337 <span class="comment"> * @{</span>
    1370. 

  1370. <a name="l01338"></a>01338 <span class="comment"> */</span>
    1371. 

  1371. <a name="l01339"></a>01339 <span class="comment"></span>
    1372. 

  1372. <a name="l01340"></a>01340 <span class="comment">/**</span>
    1373. 

  1373. <a name="l01341"></a>01341 <span class="comment"> * 4-byte array used for the 32-bit sequence number calculations.</span>
    1374. 

  1374. <a name="l01342"></a>01342 <span class="comment"> */</span>
    1375. 

  1375. <a name="l01343"></a>01343 <span class="keyword">extern</span> <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> <a class="code" href="a01684.html#ga2a0cf5d86c58fab216414ce59bf1fea1" title="4-byte array used for the 32-bit sequence number calculations.">uip_acc32</a>[4];<span class="comment"></span>
    1376. 

  1376. <a name="l01344"></a>01344 <span class="comment">/** @} */</span>
    1377. 

  1377. <a name="l01345"></a>01345 <span class="comment"></span>
    1378. 

  1378. <a name="l01346"></a>01346 <span class="comment">/**</span>
    1379. 

  1379. <a name="l01347"></a>01347 <span class="comment"> * Representation of a uIP UDP connection.</span>
    1380. 

  1380. <a name="l01348"></a>01348 <span class="comment"> */</span>
    1381. 

  1381. <a name="l01349"></a><a class="code" href="a00119.html">01349</a> <span class="keyword">struct </span><a class="code" href="a00119.html" title="Representation of a uIP UDP connection.">uip_udp_conn</a> {
    1382. 

  1382. <a name="l01350"></a><a class="code" href="a00119.html#a8a661a2d544100b82d0d14a1985083d5">01350</a>   <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> <a class="code" href="a00119.html#a8a661a2d544100b82d0d14a1985083d5" title="The IP address of the remote peer.">ripaddr</a>;   <span class="comment">/**&lt; The IP address of the remote peer. */</span>
    1383. 

  1383. <a name="l01351"></a><a class="code" href="a00119.html#a981392e295db4d024eea95805c51c371">01351</a>   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00119.html#a981392e295db4d024eea95805c51c371" title="The local port number in network byte order.">lport</a>;        <span class="comment">/**&lt; The local port number in network byte order. */</span>
    1384. 

  1384. <a name="l01352"></a><a class="code" href="a00119.html#a280a0c2a93544e597f92bbacf36ee1dc">01352</a>   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a00119.html#a280a0c2a93544e597f92bbacf36ee1dc" title="The remote port number in network byte order.">rport</a>;        <span class="comment">/**&lt; The remote port number in network byte order. */</span>
    1385. 

  1385. <a name="l01353"></a><a class="code" href="a00119.html#a4da1d7815516cd2b5bda3a66fdf05198">01353</a>   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a>  <a class="code" href="a00119.html#a4da1d7815516cd2b5bda3a66fdf05198" title="Default time-to-live.">ttl</a>;          <span class="comment">/**&lt; Default time-to-live. */</span>
    1386. 

  1386. <a name="l01354"></a>01354 <span class="comment"></span>
    1387. 

  1387. <a name="l01355"></a>01355 <span class="comment">  /** The application state. */</span>
    1388. 

  1388. <a name="l01356"></a><a class="code" href="a00119.html#ac8afa29e0aa5e789d6929b366d98ba56">01356</a>   <a class="code" href="a01591.html#gaa92afb113e122f860392bfbd385f842e" title="The type of the application state that is to be stored in the uip_conn structure...">uip_udp_appstate_t</a> <a class="code" href="a00119.html#ac8afa29e0aa5e789d6929b366d98ba56" title="The application state.">appstate</a>;
    1389. 

  1389. <a name="l01357"></a>01357 };
    1390. 

  1390. <a name="l01358"></a>01358 <span class="comment"></span>
    1391. 

  1391. <a name="l01359"></a>01359 <span class="comment">/**</span>
    1392. 

  1392. <a name="l01360"></a>01360 <span class="comment"> * The current UDP connection.</span>
    1393. 

  1393. <a name="l01361"></a>01361 <span class="comment"> */</span>
    1394. 

  1394. <a name="l01362"></a>01362 <span class="keyword">extern</span> <span class="keyword">struct </span><a class="code" href="a00119.html" title="Representation of a uIP UDP connection.">uip_udp_conn</a> *<a class="code" href="a00119.html" title="Representation of a uIP UDP connection.">uip_udp_conn</a>;
    1395. 

  1395. <a name="l01363"></a>01363 <span class="keyword">extern</span> <span class="keyword">struct </span>uip_udp_conn uip_udp_conns[<a class="code" href="a01584.html#ga196379ceb1219a99f4495e41ccc9bbfb" title="The maximum amount of concurrent UDP connections.">UIP_UDP_CONNS</a>];
    1396. 

  1396. <a name="l01364"></a>01364 
    1397. 

  1397. <a name="l01365"></a>01365 <span class="keyword">struct </span>uip_fallback_interface {
    1398. 

  1398. <a name="l01366"></a>01366   void (*init)(void);
    1399. 

  1399. <a name="l01367"></a>01367   void (*output)(void);
    1400. 

  1400. <a name="l01368"></a>01368 };
    1401. 

  1401. <a name="l01369"></a>01369 
    1402. 

  1402. <a name="l01370"></a>01370 <span class="preprocessor">#if UIP_CONF_ICMP6</span>
    1403. 

  1403. <a name="l01371"></a>01371 <span class="preprocessor"></span><span class="keyword">struct </span>uip_icmp6_conn {
    1404. 

  1404. <a name="l01372"></a>01372   uip_icmp6_appstate_t appstate;
    1405. 

  1405. <a name="l01373"></a>01373 };
    1406. 

  1406. <a name="l01374"></a>01374 <span class="keyword">extern</span> <span class="keyword">struct </span>uip_icmp6_conn uip_icmp6_conns;
    1407. 

  1407. <a name="l01375"></a>01375 <span class="preprocessor">#endif </span><span class="comment">/*UIP_CONF_ICMP6*/</span>
    1408. 

  1408. <a name="l01376"></a>01376 <span class="comment"></span>
    1409. 

  1409. <a name="l01377"></a>01377 <span class="comment">/**</span>
    1410. 

  1410. <a name="l01378"></a>01378 <span class="comment"> * The uIP TCP/IP statistics.</span>
    1411. 

  1411. <a name="l01379"></a>01379 <span class="comment"> *</span>
    1412. 

  1412. <a name="l01380"></a>01380 <span class="comment"> * This is the variable in which the uIP TCP/IP statistics are gathered.</span>
    1413. 

  1413. <a name="l01381"></a>01381 <span class="comment"> */</span>
    1414. 

  1414. <a name="l01382"></a>01382 <span class="preprocessor">#if UIP_STATISTICS == 1</span>
    1415. 

  1415. <a name="l01383"></a>01383 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="keyword">struct </span><a class="code" href="a00118.html" title="The structure holding the TCP/IP statistics that are gathered if UIP_STATISTICS is...">uip_stats</a> uip_stat;
    1416. 

  1416. <a name="l01384"></a>01384 <span class="preprocessor">#define UIP_STAT(s) s</span>
    1417. 

  1417. <a name="l01385"></a>01385 <span class="preprocessor"></span><span class="preprocessor">#else</span>
    1418. 

  1418. <a name="l01386"></a><a class="code" href="a01684.html#ga9c0814ed491fa452ec97910c0728d410">01386</a> <span class="preprocessor"></span><span class="preprocessor">#define UIP_STAT(s)</span>
    1419. 

  1419. <a name="l01387"></a>01387 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* UIP_STATISTICS == 1 */</span>
    1420. 

  1420. <a name="l01388"></a>01388 <span class="comment"></span>
    1421. 

  1421. <a name="l01389"></a>01389 <span class="comment">/**</span>
    1422. 

  1422. <a name="l01390"></a>01390 <span class="comment"> * The structure holding the TCP/IP statistics that are gathered if</span>
    1423. 

  1423. <a name="l01391"></a>01391 <span class="comment"> * UIP_STATISTICS is set to 1.</span>
    1424. 

  1424. <a name="l01392"></a>01392 <span class="comment"> *</span>
    1425. 

  1425. <a name="l01393"></a>01393 <span class="comment"> */</span>
    1426. 

  1426. <a name="l01394"></a><a class="code" href="a00118.html">01394</a> <span class="keyword">struct </span><a class="code" href="a00118.html" title="The structure holding the TCP/IP statistics that are gathered if UIP_STATISTICS is...">uip_stats</a> {
    1427. 

  1427. <a name="l01395"></a>01395   <span class="keyword">struct </span>{
    1428. 

  1428. <a name="l01396"></a><a class="code" href="a00118.html#a7f7bb2145afba5df00c6e10ddefa8ae1">01396</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7f7bb2145afba5df00c6e10ddefa8ae1" title="Number of received packets at the IP layer.">recv</a>;     <span class="comment">/**&lt; Number of received packets at the IP</span>
    1429. 

  1429. <a name="l01397"></a>01397 <span class="comment">                             layer. */</span>
    1430. 

  1430. <a name="l01398"></a><a class="code" href="a00118.html#adc69abadd5aa07c7d74f9292db2cd93c">01398</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#adc69abadd5aa07c7d74f9292db2cd93c" title="Number of sent packets at the IP layer.">sent</a>;     <span class="comment">/**&lt; Number of sent packets at the IP</span>
    1431. 

  1431. <a name="l01399"></a>01399 <span class="comment">                             layer. */</span>
    1432. 

  1432. <a name="l01400"></a><a class="code" href="a00118.html#a057f352a85dce84552f2a51e7a8e85ae">01400</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a057f352a85dce84552f2a51e7a8e85ae" title="Number of forwarded packets at the IP layer.">forwarded</a>;<span class="comment">/**&lt; Number of forwarded packets at the IP </span>
    1433. 

  1433. <a name="l01401"></a>01401 <span class="comment">                             layer. */</span>
    1434. 

  1434. <a name="l01402"></a><a class="code" href="a00118.html#a5d8996950cdf3d8130cc3ad340eb9dff">01402</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a5d8996950cdf3d8130cc3ad340eb9dff" title="Number of dropped packets at the IP layer.">drop</a>;     <span class="comment">/**&lt; Number of dropped packets at the IP</span>
    1435. 

  1435. <a name="l01403"></a>01403 <span class="comment">                             layer. */</span>
    1436. 

  1436. <a name="l01404"></a><a class="code" href="a00118.html#ab93e351c3abba0c700b26b7b07e9527d">01404</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#ab93e351c3abba0c700b26b7b07e9527d" title="Number of packets dropped due to wrong IP version or header length.">vhlerr</a>;   <span class="comment">/**&lt; Number of packets dropped due to wrong</span>
    1437. 

  1437. <a name="l01405"></a>01405 <span class="comment">                             IP version or header length. */</span>
    1438. 

  1438. <a name="l01406"></a><a class="code" href="a00118.html#a0c816f34c0187f2154c91a18d3ad87c8">01406</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a0c816f34c0187f2154c91a18d3ad87c8" title="Number of packets dropped due to wrong IP length, high byte.">hblenerr</a>; <span class="comment">/**&lt; Number of packets dropped due to wrong</span>
    1439. 

  1439. <a name="l01407"></a>01407 <span class="comment">                             IP length, high byte. */</span>
    1440. 

  1440. <a name="l01408"></a><a class="code" href="a00118.html#a6157452bdc9921f44b2e22e4b5969258">01408</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a6157452bdc9921f44b2e22e4b5969258" title="Number of packets dropped due to wrong IP length, low byte.">lblenerr</a>; <span class="comment">/**&lt; Number of packets dropped due to wrong</span>
    1441. 

  1441. <a name="l01409"></a>01409 <span class="comment">                             IP length, low byte. */</span>
    1442. 

  1442. <a name="l01410"></a><a class="code" href="a00118.html#a8082509468b2ac80ed7746aa1a5bc4f7">01410</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a8082509468b2ac80ed7746aa1a5bc4f7" title="Number of packets dropped since they were IP fragments.">fragerr</a>;  <span class="comment">/**&lt; Number of packets dropped since they</span>
    1443. 

  1443. <a name="l01411"></a>01411 <span class="comment">                             were IP fragments. */</span>
    1444. 

  1444. <a name="l01412"></a><a class="code" href="a00118.html#a7675e6b9adbddbd545d3aac8ca092fbb">01412</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7675e6b9adbddbd545d3aac8ca092fbb" title="Number of packets dropped due to IP checksum errors.">chkerr</a>;   <span class="comment">/**&lt; Number of packets dropped due to IP</span>
    1445. 

  1445. <a name="l01413"></a>01413 <span class="comment">                             checksum errors. */</span>
    1446. 

  1446. <a name="l01414"></a><a class="code" href="a00118.html#ab4622e2599ff3a592db09219b2641682">01414</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#ab4622e2599ff3a592db09219b2641682" title="Number of packets dropped since they were neither ICMP, UDP nor TCP.">protoerr</a>; <span class="comment">/**&lt; Number of packets dropped since they</span>
    1447. 

  1447. <a name="l01415"></a>01415 <span class="comment">                             were neither ICMP, UDP nor TCP. */</span>
    1448. 

  1448. <a name="l01416"></a>01416   } <a class="code" href="a00118.html#a7962982218559d41d3e193251e09a7a3" title="IP statistics.">ip</a>;                   <span class="comment">/**&lt; IP statistics. */</span>
    1449. 

  1449. <a name="l01417"></a>01417   <span class="keyword">struct </span>{
    1450. 

  1450. <a name="l01418"></a>01418     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7f7bb2145afba5df00c6e10ddefa8ae1" title="Number of received packets at the IP layer.">recv</a>;     <span class="comment">/**&lt; Number of received ICMP packets. */</span>
    1451. 

  1451. <a name="l01419"></a>01419     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#adc69abadd5aa07c7d74f9292db2cd93c" title="Number of sent packets at the IP layer.">sent</a>;     <span class="comment">/**&lt; Number of sent ICMP packets. */</span>
    1452. 

  1452. <a name="l01420"></a>01420     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a5d8996950cdf3d8130cc3ad340eb9dff" title="Number of dropped packets at the IP layer.">drop</a>;     <span class="comment">/**&lt; Number of dropped ICMP packets. */</span>
    1453. 

  1453. <a name="l01421"></a><a class="code" href="a00118.html#a8da121d6e50992ec55778f9b2141552d">01421</a>     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a8da121d6e50992ec55778f9b2141552d" title="Number of ICMP packets with a wrong type.">typeerr</a>;  <span class="comment">/**&lt; Number of ICMP packets with a wrong</span>
    1454. 

  1454. <a name="l01422"></a>01422 <span class="comment">                             type. */</span>
    1455. 

  1455. <a name="l01423"></a>01423     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7675e6b9adbddbd545d3aac8ca092fbb" title="Number of packets dropped due to IP checksum errors.">chkerr</a>;   <span class="comment">/**&lt; Number of ICMP packets with a bad</span>
    1456. 

  1456. <a name="l01424"></a>01424 <span class="comment">                             checksum. */</span>
    1457. 

  1457. <a name="l01425"></a>01425   } <a class="code" href="a00118.html#a24d77a2708b2923f3dd06b41f9be3063" title="ICMP statistics.">icmp</a>;                 <span class="comment">/**&lt; ICMP statistics. */</span>
    1458. 

  1458. <a name="l01426"></a>01426 <span class="preprocessor">#if UIP_TCP</span>
    1459. 

  1459. <a name="l01427"></a>01427 <span class="preprocessor"></span>  <span class="keyword">struct </span>{
    1460. 

  1460. <a name="l01428"></a>01428     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7f7bb2145afba5df00c6e10ddefa8ae1" title="Number of received packets at the IP layer.">recv</a>;     <span class="comment">/**&lt; Number of recived TCP segments. */</span>
    1461. 

  1461. <a name="l01429"></a>01429     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#adc69abadd5aa07c7d74f9292db2cd93c" title="Number of sent packets at the IP layer.">sent</a>;     <span class="comment">/**&lt; Number of sent TCP segments. */</span>
    1462. 

  1462. <a name="l01430"></a>01430     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a5d8996950cdf3d8130cc3ad340eb9dff" title="Number of dropped packets at the IP layer.">drop</a>;     <span class="comment">/**&lt; Number of dropped TCP segments. */</span>
    1463. 

  1463. <a name="l01431"></a>01431     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7675e6b9adbddbd545d3aac8ca092fbb" title="Number of packets dropped due to IP checksum errors.">chkerr</a>;   <span class="comment">/**&lt; Number of TCP segments with a bad</span>
    1464. 

  1464. <a name="l01432"></a>01432 <span class="comment">                             checksum. */</span>
    1465. 

  1465. <a name="l01433"></a>01433     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> ackerr;   <span class="comment">/**&lt; Number of TCP segments with a bad ACK</span>
    1466. 

  1466. <a name="l01434"></a>01434 <span class="comment">                             number. */</span>
    1467. 

  1467. <a name="l01435"></a>01435     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> rst;      <span class="comment">/**&lt; Number of recevied TCP RST (reset) segments. */</span>
    1468. 

  1468. <a name="l01436"></a>01436     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> rexmit;   <span class="comment">/**&lt; Number of retransmitted TCP segments. */</span>
    1469. 

  1469. <a name="l01437"></a>01437     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> syndrop;  <span class="comment">/**&lt; Number of dropped SYNs due to too few</span>
    1470. 

  1470. <a name="l01438"></a>01438 <span class="comment">                             connections was avaliable. */</span>
    1471. 

  1471. <a name="l01439"></a>01439     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> synrst;   <span class="comment">/**&lt; Number of SYNs for closed ports,</span>
    1472. 

  1472. <a name="l01440"></a>01440 <span class="comment">                             triggering a RST. */</span>
    1473. 

  1473. <a name="l01441"></a>01441   } tcp;                  <span class="comment">/**&lt; TCP statistics. */</span>
    1474. 

  1474. <a name="l01442"></a>01442 <span class="preprocessor">#endif</span>
    1475. 

  1475. <a name="l01443"></a>01443 <span class="preprocessor"></span><span class="preprocessor">#if UIP_UDP</span>
    1476. 

  1476. <a name="l01444"></a>01444 <span class="preprocessor"></span>  <span class="keyword">struct </span>{
    1477. 

  1477. <a name="l01445"></a>01445     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a5d8996950cdf3d8130cc3ad340eb9dff" title="Number of dropped packets at the IP layer.">drop</a>;     <span class="comment">/**&lt; Number of dropped UDP segments. */</span>
    1478. 

  1478. <a name="l01446"></a>01446     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7f7bb2145afba5df00c6e10ddefa8ae1" title="Number of received packets at the IP layer.">recv</a>;     <span class="comment">/**&lt; Number of recived UDP segments. */</span>
    1479. 

  1479. <a name="l01447"></a>01447     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#adc69abadd5aa07c7d74f9292db2cd93c" title="Number of sent packets at the IP layer.">sent</a>;     <span class="comment">/**&lt; Number of sent UDP segments. */</span>
    1480. 

  1480. <a name="l01448"></a>01448     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7675e6b9adbddbd545d3aac8ca092fbb" title="Number of packets dropped due to IP checksum errors.">chkerr</a>;   <span class="comment">/**&lt; Number of UDP segments with a bad</span>
    1481. 

  1481. <a name="l01449"></a>01449 <span class="comment">                             checksum. */</span>
    1482. 

  1482. <a name="l01450"></a>01450   } <a class="code" href="a00118.html#ac9a0460b7cdbda0273c344b4307ee431" title="UDP statistics.">udp</a>;                  <span class="comment">/**&lt; UDP statistics. */</span>
    1483. 

  1483. <a name="l01451"></a>01451 <span class="preprocessor">#endif </span><span class="comment">/* UIP_UDP */</span>
    1484. 

  1484. <a name="l01452"></a>01452 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1485. 

  1485. <a name="l01453"></a>01453 <span class="preprocessor"></span>  <span class="keyword">struct </span>{
    1486. 

  1486. <a name="l01454"></a>01454     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a5d8996950cdf3d8130cc3ad340eb9dff" title="Number of dropped packets at the IP layer.">drop</a>;     <span class="comment">/**&lt; Number of dropped ND6 packets. */</span>
    1487. 

  1487. <a name="l01455"></a>01455     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#a7f7bb2145afba5df00c6e10ddefa8ae1" title="Number of received packets at the IP layer.">recv</a>;     <span class="comment">/**&lt; Number of recived ND6 packets */</span>
    1488. 

  1488. <a name="l01456"></a>01456     <a class="code" href="a01668.html#ga727459e5c4f777543c81ffffa3df3f0c" title="The statistics data type.">uip_stats_t</a> <a class="code" href="a00118.html#adc69abadd5aa07c7d74f9292db2cd93c" title="Number of sent packets at the IP layer.">sent</a>;     <span class="comment">/**&lt; Number of sent ND6 packets */</span>
    1489. 

  1489. <a name="l01457"></a>01457   } nd6;
    1490. 

  1490. <a name="l01458"></a>01458 <span class="preprocessor">#endif </span><span class="comment">/*UIP_CONF_IPV6*/</span>
    1491. 

  1491. <a name="l01459"></a>01459 };
    1492. 

  1492. <a name="l01460"></a>01460 
    1493. 

  1493. <a name="l01461"></a>01461 
    1494. 

  1494. <a name="l01462"></a>01462 <span class="comment">/*---------------------------------------------------------------------------*/</span>
    1495. 

  1495. <a name="l01463"></a>01463 <span class="comment">/* All the stuff below this point is internal to uIP and should not be</span>
    1496. 

  1496. <a name="l01464"></a>01464 <span class="comment"> * used directly by an application or by a device driver.</span>
    1497. 

  1497. <a name="l01465"></a>01465 <span class="comment"> */</span>
    1498. 

  1498. <a name="l01466"></a>01466 <span class="comment">/*---------------------------------------------------------------------------*/</span>
    1499. 

  1499. <a name="l01467"></a>01467 
    1500. 

  1500. <a name="l01468"></a>01468 
    1501. 

  1501. <a name="l01469"></a>01469 
    1502. 

  1502. <a name="l01470"></a>01470 <span class="comment">/* u8_t uip_flags:</span>
    1503. 

  1503. <a name="l01471"></a>01471 <span class="comment"> *</span>
    1504. 

  1504. <a name="l01472"></a>01472 <span class="comment"> * When the application is called, uip_flags will contain the flags</span>
    1505. 

  1505. <a name="l01473"></a>01473 <span class="comment"> * that are defined in this file. Please read below for more</span>
    1506. 

  1506. <a name="l01474"></a>01474 <span class="comment"> * information.</span>
    1507. 

  1507. <a name="l01475"></a>01475 <span class="comment"> */</span>
    1508. 

  1508. <a name="l01476"></a>01476 CCIF <span class="keyword">extern</span> <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> uip_flags;
    1509. 

  1509. <a name="l01477"></a>01477 
    1510. 

  1510. <a name="l01478"></a>01478 <span class="comment">/* The following flags may be set in the global variable uip_flags</span>
    1511. 

  1511. <a name="l01479"></a>01479 <span class="comment">   before calling the application callback. The UIP_ACKDATA,</span>
    1512. 

  1512. <a name="l01480"></a>01480 <span class="comment">   UIP_NEWDATA, and UIP_CLOSE flags may both be set at the same time,</span>
    1513. 

  1513. <a name="l01481"></a>01481 <span class="comment">   whereas the others are mutually exclusive. Note that these flags</span>
    1514. 

  1514. <a name="l01482"></a>01482 <span class="comment">   should *NOT* be accessed directly, but only through the uIP</span>
    1515. 

  1515. <a name="l01483"></a>01483 <span class="comment">   functions/macros. */</span>
    1516. 

  1516. <a name="l01484"></a>01484 
    1517. 

  1517. <a name="l01485"></a>01485 <span class="preprocessor">#define UIP_ACKDATA   1     </span><span class="comment">/* Signifies that the outstanding data was</span>
    1518. 

  1518. <a name="l01486"></a>01486 <span class="comment">                               acked and the application should send</span>
    1519. 

  1519. <a name="l01487"></a>01487 <span class="comment">                               out new data instead of retransmitting</span>
    1520. 

  1520. <a name="l01488"></a>01488 <span class="comment">                               the last data. */</span>
    1521. 

  1521. <a name="l01489"></a>01489 <span class="preprocessor">#define UIP_NEWDATA   2     </span><span class="comment">/* Flags the fact that the peer has sent</span>
    1522. 

  1522. <a name="l01490"></a>01490 <span class="comment">                               us new data. */</span>
    1523. 

  1523. <a name="l01491"></a>01491 <span class="preprocessor">#define UIP_REXMIT    4     </span><span class="comment">/* Tells the application to retransmit the</span>
    1524. 

  1524. <a name="l01492"></a>01492 <span class="comment">                               data that was last sent. */</span>
    1525. 

  1525. <a name="l01493"></a>01493 <span class="preprocessor">#define UIP_POLL      8     </span><span class="comment">/* Used for polling the application, to</span>
    1526. 

  1526. <a name="l01494"></a>01494 <span class="comment">                               check if the application has data that</span>
    1527. 

  1527. <a name="l01495"></a>01495 <span class="comment">                               it wants to send. */</span>
    1528. 

  1528. <a name="l01496"></a>01496 <span class="preprocessor">#define UIP_CLOSE     16    </span><span class="comment">/* The remote host has closed the</span>
    1529. 

  1529. <a name="l01497"></a>01497 <span class="comment">                               connection, thus the connection has</span>
    1530. 

  1530. <a name="l01498"></a>01498 <span class="comment">                               gone away. Or the application signals</span>
    1531. 

  1531. <a name="l01499"></a>01499 <span class="comment">                               that it wants to close the</span>
    1532. 

  1532. <a name="l01500"></a>01500 <span class="comment">                               connection. */</span>
    1533. 

  1533. <a name="l01501"></a>01501 <span class="preprocessor">#define UIP_ABORT     32    </span><span class="comment">/* The remote host has aborted the</span>
    1534. 

  1534. <a name="l01502"></a>01502 <span class="comment">                               connection, thus the connection has</span>
    1535. 

  1535. <a name="l01503"></a>01503 <span class="comment">                               gone away. Or the application signals</span>
    1536. 

  1536. <a name="l01504"></a>01504 <span class="comment">                               that it wants to abort the</span>
    1537. 

  1537. <a name="l01505"></a>01505 <span class="comment">                               connection. */</span>
    1538. 

  1538. <a name="l01506"></a>01506 <span class="preprocessor">#define UIP_CONNECTED 64    </span><span class="comment">/* We have got a connection from a remote</span>
    1539. 

  1539. <a name="l01507"></a>01507 <span class="comment">                               host and have set up a new connection</span>
    1540. 

  1540. <a name="l01508"></a>01508 <span class="comment">                               for it, or an active connection has</span>
    1541. 

  1541. <a name="l01509"></a>01509 <span class="comment">                               been successfully established. */</span>
    1542. 

  1542. <a name="l01510"></a>01510 
    1543. 

  1543. <a name="l01511"></a>01511 <span class="preprocessor">#define UIP_TIMEDOUT  128   </span><span class="comment">/* The connection has been aborted due to</span>
    1544. 

  1544. <a name="l01512"></a>01512 <span class="comment">                               too many retransmissions. */</span>
    1545. 

  1545. <a name="l01513"></a>01513 
    1546. 

  1546. <a name="l01514"></a>01514 <span class="comment"></span>
    1547. 

  1547. <a name="l01515"></a>01515 <span class="comment">/**</span>
    1548. 

  1548. <a name="l01516"></a>01516 <span class="comment"> * \brief process the options within a hop by hop or destination option header</span>
    1549. 

  1549. <a name="l01517"></a>01517 <span class="comment"> * \retval 0: nothing to send,</span>
    1550. 

  1550. <a name="l01518"></a>01518 <span class="comment"> * \retval 1: drop pkt</span>
    1551. 

  1551. <a name="l01519"></a>01519 <span class="comment"> * \retval 2: ICMP error message to send</span>
    1552. 

  1552. <a name="l01520"></a>01520 <span class="comment">*/</span>
    1553. 

  1553. <a name="l01521"></a>01521 <span class="comment">/*static u8_t</span>
    1554. 

  1554. <a name="l01522"></a>01522 <span class="comment">uip_ext_hdr_options_process(); */</span>
    1555. 

  1555. <a name="l01523"></a>01523 
    1556. 

  1556. <a name="l01524"></a>01524 <span class="comment">/* uip_process(flag):</span>
    1557. 

  1557. <a name="l01525"></a>01525 <span class="comment"> *</span>
    1558. 

  1558. <a name="l01526"></a>01526 <span class="comment"> * The actual uIP function which does all the work.</span>
    1559. 

  1559. <a name="l01527"></a>01527 <span class="comment"> */</span>
    1560. 

  1560. <a name="l01528"></a>01528 <span class="keywordtype">void</span> <a class="code" href="a01684.html#ga266263ac78a1361a2b1d15741d3b0675" title="process the options within a hop by hop or destination option header">uip_process</a>(<a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> flag);
    1561. 

  1561. <a name="l01529"></a>01529   
    1562. 

  1562. <a name="l01530"></a>01530   <span class="comment">/* The following flags are passed as an argument to the uip_process()</span>
    1563. 

  1563. <a name="l01531"></a>01531 <span class="comment">   function. They are used to distinguish between the two cases where</span>
    1564. 

  1564. <a name="l01532"></a>01532 <span class="comment">   uip_process() is called. It can be called either because we have</span>
    1565. 

  1565. <a name="l01533"></a>01533 <span class="comment">   incoming data that should be processed, or because the periodic</span>
    1566. 

  1566. <a name="l01534"></a>01534 <span class="comment">   timer has fired. These values are never used directly, but only in</span>
    1567. 

  1567. <a name="l01535"></a>01535 <span class="comment">   the macros defined in this file. */</span>
    1568. 

  1568. <a name="l01536"></a>01536  
    1569. 

  1569. <a name="l01537"></a>01537 <span class="preprocessor">#define UIP_DATA          1     </span><span class="comment">/* Tells uIP that there is incoming</span>
    1570. 

  1570. <a name="l01538"></a>01538 <span class="comment">                                   data in the uip_buf buffer. The</span>
    1571. 

  1571. <a name="l01539"></a>01539 <span class="comment">                                   length of the data is stored in the</span>
    1572. 

  1572. <a name="l01540"></a>01540 <span class="comment">                                   global variable uip_len. */</span>
    1573. 

  1573. <a name="l01541"></a>01541 <span class="preprocessor">#define UIP_TIMER         2     </span><span class="comment">/* Tells uIP that the periodic timer</span>
    1574. 

  1574. <a name="l01542"></a>01542 <span class="comment">                                   has fired. */</span>
    1575. 

  1575. <a name="l01543"></a>01543 <span class="preprocessor">#define UIP_POLL_REQUEST  3     </span><span class="comment">/* Tells uIP that a connection should</span>
    1576. 

  1576. <a name="l01544"></a>01544 <span class="comment">                                   be polled. */</span>
    1577. 

  1577. <a name="l01545"></a>01545 <span class="preprocessor">#define UIP_UDP_SEND_CONN 4     </span><span class="comment">/* Tells uIP that a UDP datagram</span>
    1578. 

  1578. <a name="l01546"></a>01546 <span class="comment">                                   should be constructed in the</span>
    1579. 

  1579. <a name="l01547"></a>01547 <span class="comment">                                   uip_buf buffer. */</span>
    1580. 

  1580. <a name="l01548"></a>01548 <span class="preprocessor">#if UIP_UDP</span>
    1581. 

  1581. <a name="l01549"></a>01549 <span class="preprocessor"></span><span class="preprocessor">#define UIP_UDP_TIMER     5</span>
    1582. 

  1582. <a name="l01550"></a>01550 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* UIP_UDP */</span>
    1583. 

  1583. <a name="l01551"></a>01551 
    1584. 

  1584. <a name="l01552"></a>01552 <span class="comment">/* The TCP states used in the uip_conn-&gt;tcpstateflags. */</span>
    1585. 

  1585. <a name="l01553"></a>01553 <span class="preprocessor">#define UIP_CLOSED      0</span>
    1586. 

  1586. <a name="l01554"></a>01554 <span class="preprocessor"></span><span class="preprocessor">#define UIP_SYN_RCVD    1</span>
    1587. 

  1587. <a name="l01555"></a>01555 <span class="preprocessor"></span><span class="preprocessor">#define UIP_SYN_SENT    2</span>
    1588. 

  1588. <a name="l01556"></a>01556 <span class="preprocessor"></span><span class="preprocessor">#define UIP_ESTABLISHED 3</span>
    1589. 

  1589. <a name="l01557"></a>01557 <span class="preprocessor"></span><span class="preprocessor">#define UIP_FIN_WAIT_1  4</span>
    1590. 

  1590. <a name="l01558"></a>01558 <span class="preprocessor"></span><span class="preprocessor">#define UIP_FIN_WAIT_2  5</span>
    1591. 

  1591. <a name="l01559"></a>01559 <span class="preprocessor"></span><span class="preprocessor">#define UIP_CLOSING     6</span>
    1592. 

  1592. <a name="l01560"></a>01560 <span class="preprocessor"></span><span class="preprocessor">#define UIP_TIME_WAIT   7</span>
    1593. 

  1593. <a name="l01561"></a>01561 <span class="preprocessor"></span><span class="preprocessor">#define UIP_LAST_ACK    8</span>
    1594. 

  1594. <a name="l01562"></a>01562 <span class="preprocessor"></span><span class="preprocessor">#define UIP_TS_MASK     15</span>
    1595. 

  1595. <a name="l01563"></a>01563 <span class="preprocessor"></span>  
    1596. 

  1596. <a name="l01564"></a>01564 <span class="preprocessor">#define UIP_STOPPED      16</span>
    1597. 

  1597. <a name="l01565"></a>01565 <span class="preprocessor"></span>
    1598. 

  1598. <a name="l01566"></a>01566 <span class="comment">/* The TCP and IP headers. */</span>
    1599. 

  1599. <a name="l01567"></a>01567 <span class="keyword">struct </span>uip_tcpip_hdr {
    1600. 

  1600. <a name="l01568"></a>01568 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1601. 

  1601. <a name="l01569"></a>01569 <span class="preprocessor"></span>  <span class="comment">/* IPv6 header. */</span>
    1602. 

  1602. <a name="l01570"></a>01570   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vtc,
    1603. 

  1603. <a name="l01571"></a>01571     tcflow;
    1604. 

  1604. <a name="l01572"></a>01572   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> flow;
    1605. 

  1605. <a name="l01573"></a>01573   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len[2];
    1606. 

  1606. <a name="l01574"></a>01574   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> proto, ttl;
    1607. 

  1607. <a name="l01575"></a>01575   uip_ip6addr_t srcipaddr, destipaddr;
    1608. 

  1608. <a name="l01576"></a>01576 <span class="preprocessor">#else </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1609. 

  1609. <a name="l01577"></a>01577   <span class="comment">/* IPv4 header. */</span>
    1610. 

  1610. <a name="l01578"></a>01578   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vhl,
    1611. 

  1611. <a name="l01579"></a>01579     tos,
    1612. 

  1612. <a name="l01580"></a>01580     len[2],
    1613. 

  1613. <a name="l01581"></a>01581     ipid[2],
    1614. 

  1614. <a name="l01582"></a>01582     ipoffset[2],
    1615. 

  1615. <a name="l01583"></a>01583     ttl,
    1616. 

  1616. <a name="l01584"></a>01584     proto;
    1617. 

  1617. <a name="l01585"></a>01585   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> ipchksum;
    1618. 

  1618. <a name="l01586"></a>01586   <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> srcipaddr, destipaddr;
    1619. 

  1619. <a name="l01587"></a>01587 <span class="preprocessor">#endif </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1620. 

  1620. <a name="l01588"></a>01588   
    1621. 

  1621. <a name="l01589"></a>01589   <span class="comment">/* TCP header. */</span>
    1622. 

  1622. <a name="l01590"></a>01590   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> srcport,
    1623. 

  1623. <a name="l01591"></a>01591     destport;
    1624. 

  1624. <a name="l01592"></a>01592   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> seqno[4],
    1625. 

  1625. <a name="l01593"></a>01593     ackno[4],
    1626. 

  1626. <a name="l01594"></a>01594     tcpoffset,
    1627. 

  1627. <a name="l01595"></a>01595     flags,
    1628. 

  1628. <a name="l01596"></a>01596     wnd[2];
    1629. 

  1629. <a name="l01597"></a>01597   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> tcpchksum;
    1630. 

  1630. <a name="l01598"></a>01598   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> urgp[2];
    1631. 

  1631. <a name="l01599"></a>01599   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> optdata[4];
    1632. 

  1632. <a name="l01600"></a>01600 };
    1633. 

  1633. <a name="l01601"></a>01601 
    1634. 

  1634. <a name="l01602"></a>01602 <span class="comment">/* The ICMP and IP headers. */</span>
    1635. 

  1635. <a name="l01603"></a>01603 <span class="keyword">struct </span>uip_icmpip_hdr {
    1636. 

  1636. <a name="l01604"></a>01604 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1637. 

  1637. <a name="l01605"></a>01605 <span class="preprocessor"></span>  <span class="comment">/* IPv6 header. */</span>
    1638. 

  1638. <a name="l01606"></a>01606   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vtc,
    1639. 

  1639. <a name="l01607"></a>01607     tcf;
    1640. 

  1640. <a name="l01608"></a>01608   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> flow;
    1641. 

  1641. <a name="l01609"></a>01609   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len[2];
    1642. 

  1642. <a name="l01610"></a>01610   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> proto, ttl;
    1643. 

  1643. <a name="l01611"></a>01611   uip_ip6addr_t srcipaddr, destipaddr;
    1644. 

  1644. <a name="l01612"></a>01612 <span class="preprocessor">#else </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1645. 

  1645. <a name="l01613"></a>01613   <span class="comment">/* IPv4 header. */</span>
    1646. 

  1646. <a name="l01614"></a>01614   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vhl,
    1647. 

  1647. <a name="l01615"></a>01615     tos,
    1648. 

  1648. <a name="l01616"></a>01616     len[2],
    1649. 

  1649. <a name="l01617"></a>01617     ipid[2],
    1650. 

  1650. <a name="l01618"></a>01618     ipoffset[2],
    1651. 

  1651. <a name="l01619"></a>01619     ttl,
    1652. 

  1652. <a name="l01620"></a>01620     proto;
    1653. 

  1653. <a name="l01621"></a>01621   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> ipchksum;
    1654. 

  1654. <a name="l01622"></a>01622   <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> srcipaddr, destipaddr;
    1655. 

  1655. <a name="l01623"></a>01623 <span class="preprocessor">#endif </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1656. 

  1656. <a name="l01624"></a>01624   
    1657. 

  1657. <a name="l01625"></a>01625   <span class="comment">/* ICMP header. */</span>
    1658. 

  1658. <a name="l01626"></a>01626   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> type, icode;
    1659. 

  1659. <a name="l01627"></a>01627   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> icmpchksum;
    1660. 

  1660. <a name="l01628"></a>01628 <span class="preprocessor">#if !UIP_CONF_IPV6</span>
    1661. 

  1661. <a name="l01629"></a>01629 <span class="preprocessor"></span>  <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> id, seqno;
    1662. 

  1662. <a name="l01630"></a>01630   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> payload[1];
    1663. 

  1663. <a name="l01631"></a>01631 <span class="preprocessor">#endif </span><span class="comment">/* !UIP_CONF_IPV6 */</span>
    1664. 

  1664. <a name="l01632"></a>01632 };
    1665. 

  1665. <a name="l01633"></a>01633 
    1666. 

  1666. <a name="l01634"></a>01634 
    1667. 

  1667. <a name="l01635"></a>01635 <span class="comment">/* The UDP and IP headers. */</span>
    1668. 

  1668. <a name="l01636"></a>01636 <span class="keyword">struct </span>uip_udpip_hdr {
    1669. 

  1669. <a name="l01637"></a>01637 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1670. 

  1670. <a name="l01638"></a>01638 <span class="preprocessor"></span>  <span class="comment">/* IPv6 header. */</span>
    1671. 

  1671. <a name="l01639"></a>01639   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vtc,
    1672. 

  1672. <a name="l01640"></a>01640     tcf;
    1673. 

  1673. <a name="l01641"></a>01641   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> flow;
    1674. 

  1674. <a name="l01642"></a>01642   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len[2];
    1675. 

  1675. <a name="l01643"></a>01643   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> proto, ttl;
    1676. 

  1676. <a name="l01644"></a>01644   uip_ip6addr_t srcipaddr, destipaddr;
    1677. 

  1677. <a name="l01645"></a>01645 <span class="preprocessor">#else </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1678. 

  1678. <a name="l01646"></a>01646   <span class="comment">/* IP header. */</span>
    1679. 

  1679. <a name="l01647"></a>01647   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vhl,
    1680. 

  1680. <a name="l01648"></a>01648     tos,
    1681. 

  1681. <a name="l01649"></a>01649     len[2],
    1682. 

  1682. <a name="l01650"></a>01650     ipid[2],
    1683. 

  1683. <a name="l01651"></a>01651     ipoffset[2],
    1684. 

  1684. <a name="l01652"></a>01652     ttl,
    1685. 

  1685. <a name="l01653"></a>01653     proto;
    1686. 

  1686. <a name="l01654"></a>01654   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> ipchksum;
    1687. 

  1687. <a name="l01655"></a>01655   <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> srcipaddr, destipaddr;
    1688. 

  1688. <a name="l01656"></a>01656 <span class="preprocessor">#endif </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1689. 

  1689. <a name="l01657"></a>01657   
    1690. 

  1690. <a name="l01658"></a>01658   <span class="comment">/* UDP header. */</span>
    1691. 

  1691. <a name="l01659"></a>01659   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> srcport,
    1692. 

  1692. <a name="l01660"></a>01660     destport;
    1693. 

  1693. <a name="l01661"></a>01661   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> udplen;
    1694. 

  1694. <a name="l01662"></a>01662   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> udpchksum;
    1695. 

  1695. <a name="l01663"></a>01663 };
    1696. 

  1696. <a name="l01664"></a>01664 
    1697. 

  1697. <a name="l01665"></a>01665 <span class="comment">/*</span>
    1698. 

  1698. <a name="l01666"></a>01666 <span class="comment"> * In IPv6 the length of the L3 headers before the transport header is</span>
    1699. 

  1699. <a name="l01667"></a>01667 <span class="comment"> * not fixed, due to the possibility to include extension option headers</span>
    1700. 

  1700. <a name="l01668"></a>01668 <span class="comment"> * after the IP header. hence we split here L3 and L4 headers</span>
    1701. 

  1701. <a name="l01669"></a>01669 <span class="comment"> */</span>
    1702. 

  1702. <a name="l01670"></a>01670 <span class="comment">/* The IP header */</span>
    1703. 

  1703. <a name="l01671"></a>01671 <span class="keyword">struct </span>uip_ip_hdr {
    1704. 

  1704. <a name="l01672"></a>01672 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1705. 

  1705. <a name="l01673"></a>01673 <span class="preprocessor"></span>  <span class="comment">/* IPV6 header */</span>
    1706. 

  1706. <a name="l01674"></a>01674   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vtc;
    1707. 

  1707. <a name="l01675"></a>01675   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> tcflow;
    1708. 

  1708. <a name="l01676"></a>01676   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> flow;
    1709. 

  1709. <a name="l01677"></a>01677   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len[2];
    1710. 

  1710. <a name="l01678"></a>01678   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> proto, ttl;
    1711. 

  1711. <a name="l01679"></a>01679   uip_ip6addr_t srcipaddr, destipaddr;
    1712. 

  1712. <a name="l01680"></a>01680 <span class="preprocessor">#else </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1713. 

  1713. <a name="l01681"></a>01681   <span class="comment">/* IPV4 header */</span>
    1714. 

  1714. <a name="l01682"></a>01682   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> vhl,
    1715. 

  1715. <a name="l01683"></a>01683     tos,
    1716. 

  1716. <a name="l01684"></a>01684     len[2],
    1717. 

  1717. <a name="l01685"></a>01685     ipid[2],
    1718. 

  1718. <a name="l01686"></a>01686     ipoffset[2],
    1719. 

  1719. <a name="l01687"></a>01687     ttl,
    1720. 

  1720. <a name="l01688"></a>01688     proto;
    1721. 

  1721. <a name="l01689"></a>01689   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> ipchksum;
    1722. 

  1722. <a name="l01690"></a>01690   <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> srcipaddr, destipaddr;
    1723. 

  1723. <a name="l01691"></a>01691 <span class="preprocessor">#endif </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1724. 

  1724. <a name="l01692"></a>01692 };
    1725. 

  1725. <a name="l01693"></a>01693 
    1726. 

  1726. <a name="l01694"></a>01694 
    1727. 

  1727. <a name="l01695"></a>01695 <span class="comment">/*</span>
    1728. 

  1728. <a name="l01696"></a>01696 <span class="comment"> * IPv6 extension option headers: we are able to process</span>
    1729. 

  1729. <a name="l01697"></a>01697 <span class="comment"> * the 4 extension headers defined in RFC2460 (IPv6):</span>
    1730. 

  1730. <a name="l01698"></a>01698 <span class="comment"> * - Hop by hop option header, destination option header:</span>
    1731. 

  1731. <a name="l01699"></a>01699 <span class="comment"> *   These two are not used by any core IPv6 protocol, hence</span>
    1732. 

  1732. <a name="l01700"></a>01700 <span class="comment"> *   we just read them and go to the next. They convey options,</span>
    1733. 

  1733. <a name="l01701"></a>01701 <span class="comment"> *   the options defined in RFC2460 are Pad1 and PadN, which do</span>
    1734. 

  1734. <a name="l01702"></a>01702 <span class="comment"> *   some padding, and that we do not need to read (the length</span>
    1735. 

  1735. <a name="l01703"></a>01703 <span class="comment"> *   field in the header is enough)</span>
    1736. 

  1736. <a name="l01704"></a>01704 <span class="comment"> * - Routing header: this one is most notably used by MIPv6,</span>
    1737. 

  1737. <a name="l01705"></a>01705 <span class="comment"> *   which we do not implement, hence we just read it and go</span>
    1738. 

  1738. <a name="l01706"></a>01706 <span class="comment"> *   to the next</span>
    1739. 

  1739. <a name="l01707"></a>01707 <span class="comment"> * - Fragmentation header: we read this header and are able to</span>
    1740. 

  1740. <a name="l01708"></a>01708 <span class="comment"> *   reassemble packets</span>
    1741. 

  1741. <a name="l01709"></a>01709 <span class="comment"> *</span>
    1742. 

  1742. <a name="l01710"></a>01710 <span class="comment"> * We do not offer any means to send packets with extension headers</span>
    1743. 

  1743. <a name="l01711"></a>01711 <span class="comment"> *</span>
    1744. 

  1744. <a name="l01712"></a>01712 <span class="comment"> * We do not implement Authentication and ESP headers, which are</span>
    1745. 

  1745. <a name="l01713"></a>01713 <span class="comment"> * used in IPSec and defined in RFC4302,4303,4305,4385</span>
    1746. 

  1746. <a name="l01714"></a>01714 <span class="comment"> */</span>
    1747. 

  1747. <a name="l01715"></a>01715 <span class="comment">/* common header part */</span>
    1748. 

  1748. <a name="l01716"></a>01716 <span class="keyword">typedef</span> <span class="keyword">struct </span>uip_ext_hdr {
    1749. 

  1749. <a name="l01717"></a>01717   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> next;
    1750. 

  1750. <a name="l01718"></a>01718   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len;
    1751. 

  1751. <a name="l01719"></a>01719 } uip_ext_hdr;
    1752. 

  1752. <a name="l01720"></a>01720 
    1753. 

  1753. <a name="l01721"></a>01721 <span class="comment">/* Hop by Hop option header */</span>
    1754. 

  1754. <a name="l01722"></a>01722 <span class="keyword">typedef</span> <span class="keyword">struct </span>uip_hbho_hdr {
    1755. 

  1755. <a name="l01723"></a>01723   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> next;
    1756. 

  1756. <a name="l01724"></a>01724   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len;
    1757. 

  1757. <a name="l01725"></a>01725 } uip_hbho_hdr;
    1758. 

  1758. <a name="l01726"></a>01726 
    1759. 

  1759. <a name="l01727"></a>01727 <span class="comment">/* destination option header */</span>
    1760. 

  1760. <a name="l01728"></a>01728 <span class="keyword">typedef</span> <span class="keyword">struct </span>uip_desto_hdr {
    1761. 

  1761. <a name="l01729"></a>01729   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> next;
    1762. 

  1762. <a name="l01730"></a>01730   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len;
    1763. 

  1763. <a name="l01731"></a>01731 } uip_desto_hdr;
    1764. 

  1764. <a name="l01732"></a>01732 
    1765. 

  1765. <a name="l01733"></a>01733 <span class="comment">/* We do not define structures for PAD1 and PADN options */</span>
    1766. 

  1766. <a name="l01734"></a>01734 
    1767. 

  1767. <a name="l01735"></a>01735 <span class="comment">/*</span>
    1768. 

  1768. <a name="l01736"></a>01736 <span class="comment"> * routing header</span>
    1769. 

  1769. <a name="l01737"></a>01737 <span class="comment"> * the routing header as 4 common bytes, then routing header type</span>
    1770. 

  1770. <a name="l01738"></a>01738 <span class="comment"> * specific data there are several types of routing header. Type 0 was</span>
    1771. 

  1771. <a name="l01739"></a>01739 <span class="comment"> * deprecated as per RFC5095 most notable other type is 2, used in</span>
    1772. 

  1772. <a name="l01740"></a>01740 <span class="comment"> * RFC3775 (MIPv6) here we do not implement MIPv6, so we just need to</span>
    1773. 

  1773. <a name="l01741"></a>01741 <span class="comment"> * parse the 4 first bytes</span>
    1774. 

  1774. <a name="l01742"></a>01742 <span class="comment"> */</span>
    1775. 

  1775. <a name="l01743"></a>01743 <span class="keyword">typedef</span> <span class="keyword">struct </span>uip_routing_hdr {
    1776. 

  1776. <a name="l01744"></a>01744   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> next;
    1777. 

  1777. <a name="l01745"></a>01745   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len;
    1778. 

  1778. <a name="l01746"></a>01746   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> routing_type;
    1779. 

  1779. <a name="l01747"></a>01747   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> seg_left;
    1780. 

  1780. <a name="l01748"></a>01748 } uip_routing_hdr;
    1781. 

  1781. <a name="l01749"></a>01749 
    1782. 

  1782. <a name="l01750"></a>01750 <span class="comment">/* fragmentation header */</span>
    1783. 

  1783. <a name="l01751"></a>01751 <span class="keyword">typedef</span> <span class="keyword">struct </span>uip_frag_hdr {
    1784. 

  1784. <a name="l01752"></a>01752   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> next;
    1785. 

  1785. <a name="l01753"></a>01753   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> res;
    1786. 

  1786. <a name="l01754"></a>01754   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> offsetresmore;
    1787. 

  1787. <a name="l01755"></a>01755   <a class="code" href="a01668.html#ga4c14294869aceba3ef9d4c0c302d0f33" title="The 32-bit unsigned data type.">u32_t</a> id;
    1788. 

  1788. <a name="l01756"></a>01756 } uip_frag_hdr;
    1789. 

  1789. <a name="l01757"></a>01757 
    1790. 

  1790. <a name="l01758"></a>01758 <span class="comment">/*</span>
    1791. 

  1791. <a name="l01759"></a>01759 <span class="comment"> * an option within the destination or hop by hop option headers</span>
    1792. 

  1792. <a name="l01760"></a>01760 <span class="comment"> * it contains type an length, which is true for all options but PAD1</span>
    1793. 

  1793. <a name="l01761"></a>01761 <span class="comment"> */</span>
    1794. 

  1794. <a name="l01762"></a>01762 <span class="keyword">typedef</span> <span class="keyword">struct </span>uip_ext_hdr_opt {
    1795. 

  1795. <a name="l01763"></a>01763   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> type;
    1796. 

  1796. <a name="l01764"></a>01764   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> len;
    1797. 

  1797. <a name="l01765"></a>01765 } uip_ext_hdr_opt;
    1798. 

  1798. <a name="l01766"></a>01766 
    1799. 

  1799. <a name="l01767"></a>01767 <span class="comment">/* PADN option */</span>
    1800. 

  1800. <a name="l01768"></a>01768 <span class="keyword">typedef</span> <span class="keyword">struct </span>uip_ext_hdr_opt_padn {
    1801. 

  1801. <a name="l01769"></a>01769   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> opt_type;
    1802. 

  1802. <a name="l01770"></a>01770   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> opt_len;
    1803. 

  1803. <a name="l01771"></a>01771 } uip_ext_hdr_opt_padn;
    1804. 

  1804. <a name="l01772"></a>01772 
    1805. 

  1805. <a name="l01773"></a>01773 <span class="comment">/* TCP header */</span>
    1806. 

  1806. <a name="l01774"></a>01774 <span class="keyword">struct </span>uip_tcp_hdr {
    1807. 

  1807. <a name="l01775"></a>01775   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> srcport;
    1808. 

  1808. <a name="l01776"></a>01776   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> destport;
    1809. 

  1809. <a name="l01777"></a>01777   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> seqno[4];
    1810. 

  1810. <a name="l01778"></a>01778   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> ackno[4];
    1811. 

  1811. <a name="l01779"></a>01779   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> tcpoffset;
    1812. 

  1812. <a name="l01780"></a>01780   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> flags;
    1813. 

  1813. <a name="l01781"></a>01781   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a>  wnd[2];
    1814. 

  1814. <a name="l01782"></a>01782   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> tcpchksum;
    1815. 

  1815. <a name="l01783"></a>01783   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> urgp[2];
    1816. 

  1816. <a name="l01784"></a>01784   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> optdata[4];
    1817. 

  1817. <a name="l01785"></a>01785 };
    1818. 

  1818. <a name="l01786"></a>01786 
    1819. 

  1819. <a name="l01787"></a>01787 <span class="comment">/* The ICMP headers. */</span>
    1820. 

  1820. <a name="l01788"></a>01788 <span class="keyword">struct </span>uip_icmp_hdr {
    1821. 

  1821. <a name="l01789"></a>01789   <a class="code" href="a01668.html#ga4caecabca98b43919dd11be1c0d4cd8e" title="The 8-bit unsigned data type.">u8_t</a> type, icode;
    1822. 

  1822. <a name="l01790"></a>01790   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> icmpchksum;
    1823. 

  1823. <a name="l01791"></a>01791 <span class="preprocessor">#if !UIP_CONF_IPV6</span>
    1824. 

  1824. <a name="l01792"></a>01792 <span class="preprocessor"></span>  <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> id, seqno;
    1825. 

  1825. <a name="l01793"></a>01793 <span class="preprocessor">#endif </span><span class="comment">/* !UIP_CONF_IPV6 */</span>
    1826. 

  1826. <a name="l01794"></a>01794 };
    1827. 

  1827. <a name="l01795"></a>01795 
    1828. 

  1828. <a name="l01796"></a>01796 
    1829. 

  1829. <a name="l01797"></a>01797 <span class="comment">/* The UDP headers. */</span>
    1830. 

  1830. <a name="l01798"></a>01798 <span class="keyword">struct </span>uip_udp_hdr {
    1831. 

  1831. <a name="l01799"></a>01799   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> srcport;
    1832. 

  1832. <a name="l01800"></a>01800   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> destport;
    1833. 

  1833. <a name="l01801"></a>01801   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> udplen;
    1834. 

  1834. <a name="l01802"></a>01802   <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> udpchksum;
    1835. 

  1835. <a name="l01803"></a>01803 };
    1836. 

  1836. <a name="l01804"></a>01804 
    1837. 

  1837. <a name="l01805"></a>01805 <span class="comment"></span>
    1838. 

  1838. <a name="l01806"></a>01806 <span class="comment">/**</span>
    1839. 

  1839. <a name="l01807"></a>01807 <span class="comment"> * The buffer size available for user data in the \ref uip_buf buffer.</span>
    1840. 

  1840. <a name="l01808"></a>01808 <span class="comment"> *</span>
    1841. 

  1841. <a name="l01809"></a>01809 <span class="comment"> * This macro holds the available size for user data in the \ref</span>
    1842. 

  1842. <a name="l01810"></a>01810 <span class="comment"> * uip_buf buffer. The macro is intended to be used for checking</span>
    1843. 

  1843. <a name="l01811"></a>01811 <span class="comment"> * bounds of available user data.</span>
    1844. 

  1844. <a name="l01812"></a>01812 <span class="comment"> *</span>
    1845. 

  1845. <a name="l01813"></a>01813 <span class="comment"> * Example:</span>
    1846. 

  1846. <a name="l01814"></a>01814 <span class="comment"> \code</span>
    1847. 

  1847. <a name="l01815"></a>01815 <span class="comment"> snprintf(uip_appdata, UIP_APPDATA_SIZE, &quot;%u\n&quot;, i);</span>
    1848. 

  1848. <a name="l01816"></a>01816 <span class="comment"> \endcode</span>
    1849. 

  1849. <a name="l01817"></a>01817 <span class="comment"> *</span>
    1850. 

  1850. <a name="l01818"></a>01818 <span class="comment"> * \hideinitializer</span>
    1851. 

  1851. <a name="l01819"></a>01819 <span class="comment"> */</span>
    1852. 

  1852. <a name="l01820"></a><a class="code" href="a01684.html#gae0825474feee11b4e038bfe71757875f">01820</a> <span class="preprocessor">#define UIP_APPDATA_SIZE (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)</span>
    1853. 

  1853. <a name="l01821"></a>01821 <span class="preprocessor"></span><span class="preprocessor">#define UIP_APPDATA_PTR (void *)&amp;uip_buf[UIP_LLH_LEN + UIP_TCPIP_HLEN]</span>
    1854. 

  1854. <a name="l01822"></a>01822 <span class="preprocessor"></span>
    1855. 

  1855. <a name="l01823"></a>01823 <span class="preprocessor">#define UIP_PROTO_ICMP  1</span>
    1856. 

  1856. <a name="l01824"></a>01824 <span class="preprocessor"></span><span class="preprocessor">#define UIP_PROTO_TCP   6</span>
    1857. 

  1857. <a name="l01825"></a>01825 <span class="preprocessor"></span><span class="preprocessor">#define UIP_PROTO_UDP   17</span>
    1858. 

  1858. <a name="l01826"></a>01826 <span class="preprocessor"></span><span class="preprocessor">#define UIP_PROTO_ICMP6 58</span>
    1859. 

  1859. <a name="l01827"></a>01827 <span class="preprocessor"></span>
    1860. 

  1860. <a name="l01828"></a>01828 
    1861. 

  1861. <a name="l01829"></a>01829 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1862. 

  1862. <a name="l01830"></a>01830 <span class="preprocessor"></span><span class="comment">/** @{ */</span><span class="comment"></span>
    1863. 

  1863. <a name="l01831"></a>01831 <span class="comment">/** \brief  extension headers types */</span>
    1864. 

  1864. <a name="l01832"></a>01832 <span class="preprocessor">#define UIP_PROTO_HBHO        0</span>
    1865. 

  1865. <a name="l01833"></a>01833 <span class="preprocessor"></span><span class="preprocessor">#define UIP_PROTO_DESTO       60</span>
    1866. 

  1866. <a name="l01834"></a>01834 <span class="preprocessor"></span><span class="preprocessor">#define UIP_PROTO_ROUTING     43</span>
    1867. 

  1867. <a name="l01835"></a>01835 <span class="preprocessor"></span><span class="preprocessor">#define UIP_PROTO_FRAG        44</span>
    1868. 

  1868. <a name="l01836"></a>01836 <span class="preprocessor"></span><span class="preprocessor">#define UIP_PROTO_NONE        59</span>
    1869. 

  1869. <a name="l01837"></a>01837 <span class="preprocessor"></span><span class="comment">/** @} */</span>
    1870. 

  1870. <a name="l01838"></a>01838 <span class="comment"></span>
    1871. 

  1871. <a name="l01839"></a>01839 <span class="comment">/** @{ */</span><span class="comment"></span>
    1872. 

  1872. <a name="l01840"></a>01840 <span class="comment">/** \brief  Destination and Hop By Hop extension headers option types */</span>
    1873. 

  1873. <a name="l01841"></a>01841 <span class="preprocessor">#define UIP_EXT_HDR_OPT_PAD1  0</span>
    1874. 

  1874. <a name="l01842"></a>01842 <span class="preprocessor"></span><span class="preprocessor">#define UIP_EXT_HDR_OPT_PADN  1</span>
    1875. 

  1875. <a name="l01843"></a>01843 <span class="preprocessor"></span><span class="comment">/** @} */</span>
    1876. 

  1876. <a name="l01844"></a>01844 <span class="comment"></span>
    1877. 

  1877. <a name="l01845"></a>01845 <span class="comment">/** @{ */</span><span class="comment"></span>
    1878. 

  1878. <a name="l01846"></a>01846 <span class="comment">/**</span>
    1879. 

  1879. <a name="l01847"></a>01847 <span class="comment"> * \brief Bitmaps for extension header processing</span>
    1880. 

  1880. <a name="l01848"></a>01848 <span class="comment"> *</span>
    1881. 

  1881. <a name="l01849"></a>01849 <span class="comment"> * When processing extension headers, we should record somehow which one we</span>
    1882. 

  1882. <a name="l01850"></a>01850 <span class="comment"> * see, because you cannot have twice the same header, except for destination</span>
    1883. 

  1883. <a name="l01851"></a>01851 <span class="comment"> * We store all this in one u8_t bitmap one bit for each header expected. The</span>
    1884. 

  1884. <a name="l01852"></a>01852 <span class="comment"> * order in the bitmap is the order recommended in RFC2460</span>
    1885. 

  1885. <a name="l01853"></a>01853 <span class="comment"> */</span>
    1886. 

  1886. <a name="l01854"></a>01854 <span class="preprocessor">#define UIP_EXT_HDR_BITMAP_HBHO 0x01</span>
    1887. 

  1887. <a name="l01855"></a>01855 <span class="preprocessor"></span><span class="preprocessor">#define UIP_EXT_HDR_BITMAP_DESTO1 0x02</span>
    1888. 

  1888. <a name="l01856"></a>01856 <span class="preprocessor"></span><span class="preprocessor">#define UIP_EXT_HDR_BITMAP_ROUTING 0x04</span>
    1889. 

  1889. <a name="l01857"></a>01857 <span class="preprocessor"></span><span class="preprocessor">#define UIP_EXT_HDR_BITMAP_FRAG 0x08</span>
    1890. 

  1890. <a name="l01858"></a>01858 <span class="preprocessor"></span><span class="preprocessor">#define UIP_EXT_HDR_BITMAP_AH 0x10</span>
    1891. 

  1891. <a name="l01859"></a>01859 <span class="preprocessor"></span><span class="preprocessor">#define UIP_EXT_HDR_BITMAP_ESP 0x20</span>
    1892. 

  1892. <a name="l01860"></a>01860 <span class="preprocessor"></span><span class="preprocessor">#define UIP_EXT_HDR_BITMAP_DESTO2 0x40</span>
    1893. 

  1893. <a name="l01861"></a>01861 <span class="preprocessor"></span><span class="comment">/** @} */</span>
    1894. 

  1894. <a name="l01862"></a>01862 
    1895. 

  1895. <a name="l01863"></a>01863 
    1896. 

  1896. <a name="l01864"></a>01864 <span class="preprocessor">#endif </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1897. 

  1897. <a name="l01865"></a>01865 
    1898. 

  1898. <a name="l01866"></a>01866 
    1899. 

  1899. <a name="l01867"></a>01867 <span class="comment">/* Header sizes. */</span>
    1900. 

  1900. <a name="l01868"></a>01868 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1901. 

  1901. <a name="l01869"></a>01869 <span class="preprocessor"></span><span class="preprocessor">#define UIP_IPH_LEN    40</span>
    1902. 

  1902. <a name="l01870"></a>01870 <span class="preprocessor"></span><span class="preprocessor">#define UIP_FRAGH_LEN  8</span>
    1903. 

  1903. <a name="l01871"></a>01871 <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1904. 

  1904. <a name="l01872"></a>01872 <span class="preprocessor">#define UIP_IPH_LEN    20    </span><span class="comment">/* Size of IP header */</span>
    1905. 

  1905. <a name="l01873"></a>01873 <span class="preprocessor">#endif </span><span class="comment">/* UIP_CONF_IPV6 */</span>
    1906. 

  1906. <a name="l01874"></a>01874 
    1907. 

  1907. <a name="l01875"></a>01875 <span class="preprocessor">#define UIP_UDPH_LEN    8    </span><span class="comment">/* Size of UDP header */</span>
    1908. 

  1908. <a name="l01876"></a>01876 <span class="preprocessor">#define UIP_TCPH_LEN   20    </span><span class="comment">/* Size of TCP header */</span>
    1909. 

  1909. <a name="l01877"></a>01877 <span class="preprocessor">#ifdef UIP_IPH_LEN</span>
    1910. 

  1910. <a name="l01878"></a>01878 <span class="preprocessor"></span><span class="preprocessor">#define UIP_ICMPH_LEN   4    </span><span class="comment">/* Size of ICMP header */</span>
    1911. 

  1911. <a name="l01879"></a>01879 <span class="preprocessor">#endif</span>
    1912. 

  1912. <a name="l01880"></a>01880 <span class="preprocessor"></span><span class="preprocessor">#define UIP_IPUDPH_LEN (UIP_UDPH_LEN + UIP_IPH_LEN)    </span><span class="comment">/* Size of IP +</span>
    1913. 

  1913. <a name="l01881"></a>01881 <span class="comment">                        * UDP</span>
    1914. 

  1914. <a name="l01882"></a>01882 <span class="comment">                                                           * header */</span>
    1915. 

  1915. <a name="l01883"></a>01883 <span class="preprocessor">#define UIP_IPTCPH_LEN (UIP_TCPH_LEN + UIP_IPH_LEN)    </span><span class="comment">/* Size of IP +</span>
    1916. 

  1916. <a name="l01884"></a>01884 <span class="comment">                                                           * TCP</span>
    1917. 

  1917. <a name="l01885"></a>01885 <span class="comment">                                                           * header */</span>
    1918. 

  1918. <a name="l01886"></a>01886 <span class="preprocessor">#define UIP_TCPIP_HLEN UIP_IPTCPH_LEN</span>
    1919. 

  1919. <a name="l01887"></a>01887 <span class="preprocessor"></span><span class="preprocessor">#define UIP_IPICMPH_LEN (UIP_IPH_LEN + UIP_ICMPH_LEN) </span><span class="comment">/* size of ICMP</span>
    1920. 

  1920. <a name="l01888"></a>01888 <span class="comment">                                                         + IP header */</span>
    1921. 

  1921. <a name="l01889"></a>01889 <span class="preprocessor">#define UIP_LLIPH_LEN (UIP_LLH_LEN + UIP_IPH_LEN)    </span><span class="comment">/* size of L2</span>
    1922. 

  1922. <a name="l01890"></a>01890 <span class="comment">                                                        + IP header */</span>
    1923. 

  1923. <a name="l01891"></a>01891 <span class="preprocessor">#if UIP_CONF_IPV6</span>
    1924. 

  1924. <a name="l01892"></a>01892 <span class="preprocessor"></span><span class="comment">/**</span>
    1925. 

  1925. <a name="l01893"></a>01893 <span class="comment"> * The sums below are quite used in ND. When used for uip_buf, we</span>
    1926. 

  1926. <a name="l01894"></a>01894 <span class="comment"> * include link layer length when used for uip_len, we do not, hence</span>
    1927. 

  1927. <a name="l01895"></a>01895 <span class="comment"> * we need values with and without LLH_LEN we do not use capital</span>
    1928. 

  1928. <a name="l01896"></a>01896 <span class="comment"> * letters as these values are variable</span>
    1929. 

  1929. <a name="l01897"></a>01897 <span class="comment"> */</span>
    1930. 

  1930. <a name="l01898"></a>01898 <span class="preprocessor">#define uip_l2_l3_hdr_len (UIP_LLH_LEN + UIP_IPH_LEN + uip_ext_len)</span>
    1931. 

  1931. <a name="l01899"></a>01899 <span class="preprocessor"></span><span class="preprocessor">#define uip_l2_l3_icmp_hdr_len (UIP_LLH_LEN + UIP_IPH_LEN + uip_ext_len + UIP_ICMPH_LEN)</span>
    1932. 

  1932. <a name="l01900"></a>01900 <span class="preprocessor"></span><span class="preprocessor">#define uip_l3_hdr_len (UIP_IPH_LEN + uip_ext_len)</span>
    1933. 

  1933. <a name="l01901"></a>01901 <span class="preprocessor"></span><span class="preprocessor">#define uip_l3_icmp_hdr_len (UIP_IPH_LEN + uip_ext_len + UIP_ICMPH_LEN)</span>
    1934. 

  1934. <a name="l01902"></a>01902 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/*UIP_CONF_IPV6*/</span>
    1935. 

  1935. <a name="l01903"></a>01903 
    1936. 

  1936. <a name="l01904"></a>01904 
    1937. 

  1937. <a name="l01905"></a>01905 <span class="preprocessor">#if UIP_FIXEDADDR</span>
    1938. 

  1938. <a name="l01906"></a>01906 <span class="preprocessor"></span>CCIF <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> uip_hostaddr, uip_netmask, uip_draddr;
    1939. 

  1939. <a name="l01907"></a>01907 <span class="preprocessor">#else </span><span class="comment">/* UIP_FIXEDADDR */</span>
    1940. 

  1940. <a name="l01908"></a>01908 CCIF <span class="keyword">extern</span> <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> uip_hostaddr, uip_netmask, uip_draddr;
    1941. 

  1941. <a name="l01909"></a>01909 <span class="preprocessor">#endif </span><span class="comment">/* UIP_FIXEDADDR */</span>
    1942. 

  1942. <a name="l01910"></a>01910 CCIF <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> uip_broadcast_addr;
    1943. 

  1943. <a name="l01911"></a>01911 CCIF <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="a00106.html" title="Representation of an IP address.">uip_ipaddr_t</a> uip_all_zeroes_addr;
    1944. 

  1944. <a name="l01912"></a>01912 
    1945. 

  1945. <a name="l01913"></a>01913 <span class="preprocessor">#if UIP_FIXEDETHADDR</span>
    1946. 

  1946. <a name="l01914"></a>01914 <span class="preprocessor"></span>CCIF <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="a00102.html" title="802.3 address">uip_lladdr_t</a> <a class="code" href="a01684.html#ga89bf167a9f1014d2d78754742eb7e06d" title="Host L2 address.">uip_lladdr</a>;
    1947. 

  1947. <a name="l01915"></a>01915 <span class="preprocessor">#else</span>
    1948. 

  1948. <a name="l01916"></a>01916 <span class="preprocessor"></span>CCIF <span class="keyword">extern</span> <a class="code" href="a00102.html" title="802.3 address">uip_lladdr_t</a> <a class="code" href="a01684.html#ga89bf167a9f1014d2d78754742eb7e06d" title="Host L2 address.">uip_lladdr</a>;
    1949. 

  1949. <a name="l01917"></a>01917 <span class="preprocessor">#endif</span>
    1950. 

  1950. <a name="l01918"></a>01918 <span class="preprocessor"></span>
    1951. 

  1951. <a name="l01919"></a>01919 
    1952. 

  1952. <a name="l01920"></a>01920 
    1953. 

  1953. <a name="l01921"></a>01921 
    1954. 

  1954. <a name="l01922"></a>01922 <span class="preprocessor">#ifdef UIP_CONF_IPV6</span>
    1955. 

  1955. <a name="l01923"></a>01923 <span class="preprocessor"></span><span class="comment">/** Length of the link local prefix */</span>
    1956. 

  1956. <a name="l01924"></a>01924 <span class="preprocessor">#define UIP_LLPREF_LEN     10</span>
    1957. 

  1957. <a name="l01925"></a>01925 <span class="preprocessor"></span><span class="comment"></span>
    1958. 

  1958. <a name="l01926"></a>01926 <span class="comment">/**</span>
    1959. 

  1959. <a name="l01927"></a>01927 <span class="comment"> * \brief Is IPv6 address a the unspecified address</span>
    1960. 

  1960. <a name="l01928"></a>01928 <span class="comment"> * a is of type uip_ipaddr_t</span>
    1961. 

  1961. <a name="l01929"></a>01929 <span class="comment"> */</span>
    1962. 

  1962. <a name="l01930"></a>01930 <span class="preprocessor">#define uip_is_addr_loopback(a)                  \</span>
    1963. 

  1963. <a name="l01931"></a>01931 <span class="preprocessor">  ((((a)-&gt;u16[0]) == 0) &amp;&amp;                       \</span>
    1964. 

  1964. <a name="l01932"></a>01932 <span class="preprocessor">   (((a)-&gt;u16[1]) == 0) &amp;&amp;                       \</span>
    1965. 

  1965. <a name="l01933"></a>01933 <span class="preprocessor">   (((a)-&gt;u16[2]) == 0) &amp;&amp;                       \</span>
    1966. 

  1966. <a name="l01934"></a>01934 <span class="preprocessor">   (((a)-&gt;u16[3]) == 0) &amp;&amp;                       \</span>
    1967. 

  1967. <a name="l01935"></a>01935 <span class="preprocessor">   (((a)-&gt;u16[4]) == 0) &amp;&amp;                       \</span>
    1968. 

  1968. <a name="l01936"></a>01936 <span class="preprocessor">   (((a)-&gt;u16[5]) == 0) &amp;&amp;                       \</span>
    1969. 

  1969. <a name="l01937"></a>01937 <span class="preprocessor">   (((a)-&gt;u16[6]) == 0) &amp;&amp;                       \</span>
    1970. 

  1970. <a name="l01938"></a>01938 <span class="preprocessor">   (((a)-&gt;u16[7]) == 1))</span>
    1971. 

  1971. <a name="l01939"></a>01939 <span class="preprocessor"></span><span class="comment">/**</span>
    1972. 

  1972. <a name="l01940"></a>01940 <span class="comment"> * \brief Is IPv6 address a the unspecified address</span>
    1973. 

  1973. <a name="l01941"></a>01941 <span class="comment"> * a is of type uip_ipaddr_t</span>
    1974. 

  1974. <a name="l01942"></a>01942 <span class="comment"> */</span>
    1975. 

  1975. <a name="l01943"></a>01943 <span class="preprocessor">#define uip_is_addr_unspecified(a)               \</span>
    1976. 

  1976. <a name="l01944"></a>01944 <span class="preprocessor">  ((((a)-&gt;u16[0]) == 0) &amp;&amp;                       \</span>
    1977. 

  1977. <a name="l01945"></a>01945 <span class="preprocessor">   (((a)-&gt;u16[1]) == 0) &amp;&amp;                       \</span>
    1978. 

  1978. <a name="l01946"></a>01946 <span class="preprocessor">   (((a)-&gt;u16[2]) == 0) &amp;&amp;                       \</span>
    1979. 

  1979. <a name="l01947"></a>01947 <span class="preprocessor">   (((a)-&gt;u16[3]) == 0) &amp;&amp;                       \</span>
    1980. 

  1980. <a name="l01948"></a>01948 <span class="preprocessor">   (((a)-&gt;u16[4]) == 0) &amp;&amp;                       \</span>
    1981. 

  1981. <a name="l01949"></a>01949 <span class="preprocessor">   (((a)-&gt;u16[5]) == 0) &amp;&amp;                       \</span>
    1982. 

  1982. <a name="l01950"></a>01950 <span class="preprocessor">   (((a)-&gt;u16[6]) == 0) &amp;&amp;                       \</span>
    1983. 

  1983. <a name="l01951"></a>01951 <span class="preprocessor">   (((a)-&gt;u16[7]) == 0))</span>
    1984. 

  1984. <a name="l01952"></a>01952 <span class="preprocessor"></span><span class="comment"></span>
    1985. 

  1985. <a name="l01953"></a>01953 <span class="comment">/** \brief Is IPv6 address a the link local all-nodes multicast address */</span>
    1986. 

  1986. <a name="l01954"></a>01954 <span class="preprocessor">#define uip_is_addr_linklocal_allnodes_mcast(a)     \</span>
    1987. 

  1987. <a name="l01955"></a>01955 <span class="preprocessor">  ((((a)-&gt;u8[0]) == 0xff) &amp;&amp;                        \</span>
    1988. 

  1988. <a name="l01956"></a>01956 <span class="preprocessor">   (((a)-&gt;u8[1]) == 0x02) &amp;&amp;                        \</span>
    1989. 

  1989. <a name="l01957"></a>01957 <span class="preprocessor">   (((a)-&gt;u16[1]) == 0) &amp;&amp;                          \</span>
    1990. 

  1990. <a name="l01958"></a>01958 <span class="preprocessor">   (((a)-&gt;u16[2]) == 0) &amp;&amp;                          \</span>
    1991. 

  1991. <a name="l01959"></a>01959 <span class="preprocessor">   (((a)-&gt;u16[3]) == 0) &amp;&amp;                          \</span>
    1992. 

  1992. <a name="l01960"></a>01960 <span class="preprocessor">   (((a)-&gt;u16[4]) == 0) &amp;&amp;                          \</span>
    1993. 

  1993. <a name="l01961"></a>01961 <span class="preprocessor">   (((a)-&gt;u16[5]) == 0) &amp;&amp;                          \</span>
    1994. 

  1994. <a name="l01962"></a>01962 <span class="preprocessor">   (((a)-&gt;u16[6]) == 0) &amp;&amp;                          \</span>
    1995. 

  1995. <a name="l01963"></a>01963 <span class="preprocessor">   (((a)-&gt;u8[14]) == 0) &amp;&amp;                          \</span>
    1996. 

  1996. <a name="l01964"></a>01964 <span class="preprocessor">   (((a)-&gt;u8[15]) == 0x01))</span>
    1997. 

  1997. <a name="l01965"></a>01965 <span class="preprocessor"></span><span class="comment"></span>
    1998. 

  1998. <a name="l01966"></a>01966 <span class="comment">/** \brief Is IPv6 address a the link local all-routers multicast address */</span>
    1999. 

  1999. <a name="l01967"></a>01967 <span class="preprocessor">#define uip_is_addr_linklocal_allrouters_mcast(a)     \</span>
    2000. 

  2000. <a name="l01968"></a>01968 <span class="preprocessor">  ((((a)-&gt;u8[0]) == 0xff) &amp;&amp;                        \</span>
    2001. 

  2001. <a name="l01969"></a>01969 <span class="preprocessor">   (((a)-&gt;u8[1]) == 0x02) &amp;&amp;                        \</span>
    2002. 

  2002. <a name="l01970"></a>01970 <span class="preprocessor">   (((a)-&gt;u16[1]) == 0) &amp;&amp;                          \</span>
    2003. 

  2003. <a name="l01971"></a>01971 <span class="preprocessor">   (((a)-&gt;u16[2]) == 0) &amp;&amp;                          \</span>
    2004. 

  2004. <a name="l01972"></a>01972 <span class="preprocessor">   (((a)-&gt;u16[3]) == 0) &amp;&amp;                          \</span>
    2005. 

  2005. <a name="l01973"></a>01973 <span class="preprocessor">   (((a)-&gt;u16[4]) == 0) &amp;&amp;                          \</span>
    2006. 

  2006. <a name="l01974"></a>01974 <span class="preprocessor">   (((a)-&gt;u16[5]) == 0) &amp;&amp;                          \</span>
    2007. 

  2007. <a name="l01975"></a>01975 <span class="preprocessor">   (((a)-&gt;u16[6]) == 0) &amp;&amp;                          \</span>
    2008. 

  2008. <a name="l01976"></a>01976 <span class="preprocessor">   (((a)-&gt;u8[14]) == 0) &amp;&amp;                          \</span>
    2009. 

  2009. <a name="l01977"></a>01977 <span class="preprocessor">   (((a)-&gt;u8[15]) == 0x02))</span>
    2010. 

  2010. <a name="l01978"></a>01978 <span class="preprocessor"></span><span class="comment"></span>
    2011. 

  2011. <a name="l01979"></a>01979 <span class="comment">/**</span>
    2012. 

  2012. <a name="l01980"></a>01980 <span class="comment"> * \brief Checks whether the address a is link local.</span>
    2013. 

  2013. <a name="l01981"></a>01981 <span class="comment"> * a is of type uip_ipaddr_t</span>
    2014. 

  2014. <a name="l01982"></a>01982 <span class="comment"> */</span>
    2015. 

  2015. <a name="l01983"></a>01983 <span class="preprocessor">#define uip_is_addr_linklocal(a)                 \</span>
    2016. 

  2016. <a name="l01984"></a>01984 <span class="preprocessor">  ((a)-&gt;u8[0] == 0xfe &amp;&amp;                         \</span>
    2017. 

  2017. <a name="l01985"></a>01985 <span class="preprocessor">   (a)-&gt;u8[1] == 0x80)</span>
    2018. 

  2018. <a name="l01986"></a>01986 <span class="preprocessor"></span><span class="comment"></span>
    2019. 

  2019. <a name="l01987"></a>01987 <span class="comment">/** \brief set IP address a to unspecified */</span>
    2020. 

  2020. <a name="l01988"></a>01988 <span class="preprocessor">#define uip_create_unspecified(a) uip_ip6addr(a, 0, 0, 0, 0, 0, 0, 0, 0)</span>
    2021. 

  2021. <a name="l01989"></a>01989 <span class="preprocessor"></span><span class="comment"></span>
    2022. 

  2022. <a name="l01990"></a>01990 <span class="comment">/** \brief set IP address a to the link local all-nodes multicast address */</span>
    2023. 

  2023. <a name="l01991"></a>01991 <span class="preprocessor">#define uip_create_linklocal_allnodes_mcast(a) uip_ip6addr(a, 0xff02, 0, 0, 0, 0, 0, 0, 0x0001)</span>
    2024. 

  2024. <a name="l01992"></a>01992 <span class="preprocessor"></span><span class="comment"></span>
    2025. 

  2025. <a name="l01993"></a>01993 <span class="comment">/** \brief set IP address a to the link local all-routers multicast address */</span>
    2026. 

  2026. <a name="l01994"></a>01994 <span class="preprocessor">#define uip_create_linklocal_allrouters_mcast(a) uip_ip6addr(a, 0xff02, 0, 0, 0, 0, 0, 0, 0x0002)</span>
    2027. 

  2027. <a name="l01995"></a>01995 <span class="preprocessor"></span><span class="preprocessor">#define uip_create_linklocal_prefix(addr) do { \</span>
    2028. 

  2028. <a name="l01996"></a>01996 <span class="preprocessor">    (addr)-&gt;u16[0] = UIP_HTONS(0xfe80);            \</span>
    2029. 

  2029. <a name="l01997"></a>01997 <span class="preprocessor">    (addr)-&gt;u16[1] = 0;                        \</span>
    2030. 

  2030. <a name="l01998"></a>01998 <span class="preprocessor">    (addr)-&gt;u16[2] = 0;                        \</span>
    2031. 

  2031. <a name="l01999"></a>01999 <span class="preprocessor">    (addr)-&gt;u16[3] = 0;                        \</span>
    2032. 

  2032. <a name="l02000"></a>02000 <span class="preprocessor">  } while(0)</span>
    2033. 

  2033. <a name="l02001"></a>02001 <span class="preprocessor"></span><span class="comment"></span>
    2034. 

  2034. <a name="l02002"></a>02002 <span class="comment">/**</span>
    2035. 

  2035. <a name="l02003"></a>02003 <span class="comment"> * \brief  is addr (a) a solicited node multicast address, see RFC3513</span>
    2036. 

  2036. <a name="l02004"></a>02004 <span class="comment"> *  a is of type uip_ipaddr_t*</span>
    2037. 

  2037. <a name="l02005"></a>02005 <span class="comment"> */</span>
    2038. 

  2038. <a name="l02006"></a>02006 <span class="preprocessor">#define uip_is_addr_solicited_node(a)          \</span>
    2039. 

  2039. <a name="l02007"></a>02007 <span class="preprocessor">  ((((a)-&gt;u8[0])  == 0xFF) &amp;&amp;                  \</span>
    2040. 

  2040. <a name="l02008"></a>02008 <span class="preprocessor">   (((a)-&gt;u8[1])  == 0x02) &amp;&amp;                  \</span>
    2041. 

  2041. <a name="l02009"></a>02009 <span class="preprocessor">   (((a)-&gt;u16[1]) == 0x00) &amp;&amp;                  \</span>
    2042. 

  2042. <a name="l02010"></a>02010 <span class="preprocessor">   (((a)-&gt;u16[2]) == 0x00) &amp;&amp;                  \</span>
    2043. 

  2043. <a name="l02011"></a>02011 <span class="preprocessor">   (((a)-&gt;u16[3]) == 0x00) &amp;&amp;                  \</span>
    2044. 

  2044. <a name="l02012"></a>02012 <span class="preprocessor">   (((a)-&gt;u16[4]) == 0x00) &amp;&amp;                  \</span>
    2045. 

  2045. <a name="l02013"></a>02013 <span class="preprocessor">   (((a)-&gt;u8[10]) == 0x00) &amp;&amp;                  \</span>
    2046. 

  2046. <a name="l02014"></a>02014 <span class="preprocessor">   (((a)-&gt;u8[11]) == 0x01) &amp;&amp;                  \</span>
    2047. 

  2047. <a name="l02015"></a>02015 <span class="preprocessor">   (((a)-&gt;u8[12]) == 0xFF))</span>
    2048. 

  2048. <a name="l02016"></a>02016 <span class="preprocessor"></span><span class="comment"></span>
    2049. 

  2049. <a name="l02017"></a>02017 <span class="comment">/**</span>
    2050. 

  2050. <a name="l02018"></a>02018 <span class="comment"> * \briefput in b the solicited node address corresponding to address a</span>
    2051. 

  2051. <a name="l02019"></a>02019 <span class="comment"> * both a and b are of type uip_ipaddr_t*</span>
    2052. 

  2052. <a name="l02020"></a>02020 <span class="comment"> * */</span>
    2053. 

  2053. <a name="l02021"></a>02021 <span class="preprocessor">#define uip_create_solicited_node(a, b)    \</span>
    2054. 

  2054. <a name="l02022"></a>02022 <span class="preprocessor">  (((b)-&gt;u8[0]) = 0xFF);                        \</span>
    2055. 

  2055. <a name="l02023"></a>02023 <span class="preprocessor">  (((b)-&gt;u8[1]) = 0x02);                        \</span>
    2056. 

  2056. <a name="l02024"></a>02024 <span class="preprocessor">  (((b)-&gt;u16[1]) = 0);                          \</span>
    2057. 

  2057. <a name="l02025"></a>02025 <span class="preprocessor">  (((b)-&gt;u16[2]) = 0);                          \</span>
    2058. 

  2058. <a name="l02026"></a>02026 <span class="preprocessor">  (((b)-&gt;u16[3]) = 0);                          \</span>
    2059. 

  2059. <a name="l02027"></a>02027 <span class="preprocessor">  (((b)-&gt;u16[4]) = 0);                          \</span>
    2060. 

  2060. <a name="l02028"></a>02028 <span class="preprocessor">  (((b)-&gt;u8[10]) = 0);                          \</span>
    2061. 

  2061. <a name="l02029"></a>02029 <span class="preprocessor">  (((b)-&gt;u8[11]) = 0x01);                       \</span>
    2062. 

  2062. <a name="l02030"></a>02030 <span class="preprocessor">  (((b)-&gt;u8[12]) = 0xFF);                       \</span>
    2063. 

  2063. <a name="l02031"></a>02031 <span class="preprocessor">  (((b)-&gt;u8[13]) = ((a)-&gt;u8[13]));              \</span>
    2064. 

  2064. <a name="l02032"></a>02032 <span class="preprocessor">  (((b)-&gt;u16[7]) = ((a)-&gt;u16[7]))</span>
    2065. 

  2065. <a name="l02033"></a>02033 <span class="preprocessor"></span><span class="comment"></span>
    2066. 

  2066. <a name="l02034"></a>02034 <span class="comment">/**</span>
    2067. 

  2067. <a name="l02035"></a>02035 <span class="comment"> * \brief is addr (a) a link local unicast address, see RFC3513</span>
    2068. 

  2068. <a name="l02036"></a>02036 <span class="comment"> *  i.e. is (a) on prefix FE80::/10</span>
    2069. 

  2069. <a name="l02037"></a>02037 <span class="comment"> *  a is of type uip_ipaddr_t*</span>
    2070. 

  2070. <a name="l02038"></a>02038 <span class="comment"> */</span>
    2071. 

  2071. <a name="l02039"></a>02039 <span class="preprocessor">#define uip_is_addr_link_local(a) \</span>
    2072. 

  2072. <a name="l02040"></a>02040 <span class="preprocessor">  ((((a)-&gt;u8[0]) == 0xFE) &amp;&amp; \</span>
    2073. 

  2073. <a name="l02041"></a>02041 <span class="preprocessor">  (((a)-&gt;u8[1]) == 0x80))</span>
    2074. 

  2074. <a name="l02042"></a>02042 <span class="preprocessor"></span><span class="comment"></span>
    2075. 

  2075. <a name="l02043"></a>02043 <span class="comment">/**</span>
    2076. 

  2076. <a name="l02044"></a>02044 <span class="comment"> * \brief was addr (a) forged based on the mac address m</span>
    2077. 

  2077. <a name="l02045"></a>02045 <span class="comment"> * a type is uip_ipaddr_t</span>
    2078. 

  2078. <a name="l02046"></a>02046 <span class="comment"> * m type is uiplladdr_t</span>
    2079. 

  2079. <a name="l02047"></a>02047 <span class="comment"> */</span>
    2080. 

  2080. <a name="l02048"></a>02048 <span class="preprocessor">#if UIP_CONF_LL_802154</span>
    2081. 

  2081. <a name="l02049"></a>02049 <span class="preprocessor"></span><span class="preprocessor">#define uip_is_addr_mac_addr_based(a, m) \</span>
    2082. 

  2082. <a name="l02050"></a>02050 <span class="preprocessor">  ((((a)-&gt;u8[8])  == (((m)-&gt;addr[0]) ^ 0x02)) &amp;&amp;   \</span>
    2083. 

  2083. <a name="l02051"></a>02051 <span class="preprocessor">   (((a)-&gt;u8[9])  == (m)-&gt;addr[1]) &amp;&amp;            \</span>
    2084. 

  2084. <a name="l02052"></a>02052 <span class="preprocessor">   (((a)-&gt;u8[10]) == (m)-&gt;addr[2]) &amp;&amp;            \</span>
    2085. 

  2085. <a name="l02053"></a>02053 <span class="preprocessor">   (((a)-&gt;u8[11]) == (m)-&gt;addr[3]) &amp;&amp;            \</span>
    2086. 

  2086. <a name="l02054"></a>02054 <span class="preprocessor">   (((a)-&gt;u8[12]) == (m)-&gt;addr[4]) &amp;&amp;            \</span>
    2087. 

  2087. <a name="l02055"></a>02055 <span class="preprocessor">   (((a)-&gt;u8[13]) == (m)-&gt;addr[5]) &amp;&amp;            \</span>
    2088. 

  2088. <a name="l02056"></a>02056 <span class="preprocessor">   (((a)-&gt;u8[14]) == (m)-&gt;addr[6]) &amp;&amp;            \</span>
    2089. 

  2089. <a name="l02057"></a>02057 <span class="preprocessor">   (((a)-&gt;u8[15]) == (m)-&gt;addr[7]))</span>
    2090. 

  2090. <a name="l02058"></a>02058 <span class="preprocessor"></span><span class="preprocessor">#else</span>
    2091. 

  2091. <a name="l02059"></a>02059 <span class="preprocessor"></span>
    2092. 

  2092. <a name="l02060"></a>02060 <span class="preprocessor">#define uip_is_addr_mac_addr_based(a, m) \</span>
    2093. 

  2093. <a name="l02061"></a>02061 <span class="preprocessor">  ((((a)-&gt;u8[8])  == (((m)-&gt;addr[0]) | 0x02)) &amp;&amp;   \</span>
    2094. 

  2094. <a name="l02062"></a>02062 <span class="preprocessor">   (((a)-&gt;u8[9])  == (m)-&gt;addr[1]) &amp;&amp;            \</span>
    2095. 

  2095. <a name="l02063"></a>02063 <span class="preprocessor">   (((a)-&gt;u8[10]) == (m)-&gt;addr[2]) &amp;&amp;            \</span>
    2096. 

  2096. <a name="l02064"></a>02064 <span class="preprocessor">   (((a)-&gt;u8[11]) == 0xff) &amp;&amp;            \</span>
    2097. 

  2097. <a name="l02065"></a>02065 <span class="preprocessor">   (((a)-&gt;u8[12]) == 0xfe) &amp;&amp;            \</span>
    2098. 

  2098. <a name="l02066"></a>02066 <span class="preprocessor">   (((a)-&gt;u8[13]) == (m)-&gt;addr[3]) &amp;&amp;            \</span>
    2099. 

  2099. <a name="l02067"></a>02067 <span class="preprocessor">   (((a)-&gt;u8[14]) == (m)-&gt;addr[4]) &amp;&amp;            \</span>
    2100. 

  2100. <a name="l02068"></a>02068 <span class="preprocessor">   (((a)-&gt;u8[15]) == (m)-&gt;addr[5]))</span>
    2101. 

  2101. <a name="l02069"></a>02069 <span class="preprocessor"></span>   
    2102. 

  2102. <a name="l02070"></a>02070 <span class="preprocessor">#endif </span><span class="comment">/*UIP_CONF_LL_802154*/</span>
    2103. 

  2103. <a name="l02071"></a>02071 <span class="comment"></span>
    2104. 

  2104. <a name="l02072"></a>02072 <span class="comment">/**</span>
    2105. 

  2105. <a name="l02073"></a>02073 <span class="comment"> * \brief is address a multicast address, see RFC 3513</span>
    2106. 

  2106. <a name="l02074"></a>02074 <span class="comment"> * a is of type uip_ipaddr_t*</span>
    2107. 

  2107. <a name="l02075"></a>02075 <span class="comment"> * */</span>
    2108. 

  2108. <a name="l02076"></a>02076 <span class="preprocessor">#define uip_is_addr_mcast(a)                    \</span>
    2109. 

  2109. <a name="l02077"></a>02077 <span class="preprocessor">  (((a)-&gt;u8[0]) == 0xFF)</span>
    2110. 

  2110. <a name="l02078"></a>02078 <span class="preprocessor"></span><span class="comment"></span>
    2111. 

  2111. <a name="l02079"></a>02079 <span class="comment">/**</span>
    2112. 

  2112. <a name="l02080"></a>02080 <span class="comment"> * \brief is group-id of multicast address a</span>
    2113. 

  2113. <a name="l02081"></a>02081 <span class="comment"> * the all nodes group-id</span>
    2114. 

  2114. <a name="l02082"></a>02082 <span class="comment"> */</span>
    2115. 

  2115. <a name="l02083"></a>02083 <span class="preprocessor">#define uip_is_mcast_group_id_all_nodes(a) \</span>
    2116. 

  2116. <a name="l02084"></a>02084 <span class="preprocessor">  ((((a)-&gt;u16[1])  == 0) &amp;&amp;                 \</span>
    2117. 

  2117. <a name="l02085"></a>02085 <span class="preprocessor">   (((a)-&gt;u16[2])  == 0) &amp;&amp;                 \</span>
    2118. 

  2118. <a name="l02086"></a>02086 <span class="preprocessor">   (((a)-&gt;u16[3])  == 0) &amp;&amp;                 \</span>
    2119. 

  2119. <a name="l02087"></a>02087 <span class="preprocessor">   (((a)-&gt;u16[4])  == 0) &amp;&amp;                 \</span>
    2120. 

  2120. <a name="l02088"></a>02088 <span class="preprocessor">   (((a)-&gt;u16[5])  == 0) &amp;&amp;                 \</span>
    2121. 

  2121. <a name="l02089"></a>02089 <span class="preprocessor">   (((a)-&gt;u16[6])  == 0) &amp;&amp;                 \</span>
    2122. 

  2122. <a name="l02090"></a>02090 <span class="preprocessor">   (((a)-&gt;u8[14])  == 0) &amp;&amp;                 \</span>
    2123. 

  2123. <a name="l02091"></a>02091 <span class="preprocessor">   (((a)-&gt;u8[15])  == 1))</span>
    2124. 

  2124. <a name="l02092"></a>02092 <span class="preprocessor"></span><span class="comment"></span>
    2125. 

  2125. <a name="l02093"></a>02093 <span class="comment">/**</span>
    2126. 

  2126. <a name="l02094"></a>02094 <span class="comment"> * \brief is group-id of multicast address a</span>
    2127. 

  2127. <a name="l02095"></a>02095 <span class="comment"> * the all routers group-id</span>
    2128. 

  2128. <a name="l02096"></a>02096 <span class="comment"> */</span>
    2129. 

  2129. <a name="l02097"></a>02097 <span class="preprocessor">#define uip_is_mcast_group_id_all_routers(a) \</span>
    2130. 

  2130. <a name="l02098"></a>02098 <span class="preprocessor">  ((((a)-&gt;u16[1])  == 0) &amp;&amp;                 \</span>
    2131. 

  2131. <a name="l02099"></a>02099 <span class="preprocessor">   (((a)-&gt;u16[2])  == 0) &amp;&amp;                 \</span>
    2132. 

  2132. <a name="l02100"></a>02100 <span class="preprocessor">   (((a)-&gt;u16[3])  == 0) &amp;&amp;                 \</span>
    2133. 

  2133. <a name="l02101"></a>02101 <span class="preprocessor">   (((a)-&gt;u16[4])  == 0) &amp;&amp;                 \</span>
    2134. 

  2134. <a name="l02102"></a>02102 <span class="preprocessor">   (((a)-&gt;u16[5])  == 0) &amp;&amp;                 \</span>
    2135. 

  2135. <a name="l02103"></a>02103 <span class="preprocessor">   (((a)-&gt;u16[6])  == 0) &amp;&amp;                 \</span>
    2136. 

  2136. <a name="l02104"></a>02104 <span class="preprocessor">   (((a)-&gt;u8[14])  == 0) &amp;&amp;                 \</span>
    2137. 

  2137. <a name="l02105"></a>02105 <span class="preprocessor">   (((a)-&gt;u8[15])  == 2))</span>
    2138. 

  2138. <a name="l02106"></a>02106 <span class="preprocessor"></span>
    2139. 

  2139. <a name="l02107"></a>02107 <span class="comment"></span>
    2140. 

  2140. <a name="l02108"></a>02108 <span class="comment">/**</span>
    2141. 

  2141. <a name="l02109"></a>02109 <span class="comment"> * \brief are last three bytes of both addresses equal?</span>
    2142. 

  2142. <a name="l02110"></a>02110 <span class="comment"> * This is used to compare solicited node multicast addresses</span>
    2143. 

  2143. <a name="l02111"></a>02111 <span class="comment"> */</span>
    2144. 

  2144. <a name="l02112"></a>02112 <span class="preprocessor">#define uip_are_solicited_bytes_equal(a, b)             \</span>
    2145. 

  2145. <a name="l02113"></a>02113 <span class="preprocessor">  ((((a)-&gt;u8[13])  == ((b)-&gt;u8[13])) &amp;&amp;                 \</span>
    2146. 

  2146. <a name="l02114"></a>02114 <span class="preprocessor">   (((a)-&gt;u8[14])  == ((b)-&gt;u8[14])) &amp;&amp;                 \</span>
    2147. 

  2147. <a name="l02115"></a>02115 <span class="preprocessor">   (((a)-&gt;u8[15])  == ((b)-&gt;u8[15])))</span>
    2148. 

  2148. <a name="l02116"></a>02116 <span class="preprocessor"></span>
    2149. 

  2149. <a name="l02117"></a>02117 <span class="preprocessor">#endif </span><span class="comment">/*UIP_CONF_IPV6*/</span>
    2150. 

  2150. <a name="l02118"></a>02118 <span class="comment"></span>
    2151. 

  2151. <a name="l02119"></a>02119 <span class="comment">/**</span>
    2152. 

  2152. <a name="l02120"></a>02120 <span class="comment"> * Calculate the Internet checksum over a buffer.</span>
    2153. 

  2153. <a name="l02121"></a>02121 <span class="comment"> *</span>
    2154. 

  2154. <a name="l02122"></a>02122 <span class="comment"> * The Internet checksum is the one&apos;s complement of the one&apos;s</span>
    2155. 

  2155. <a name="l02123"></a>02123 <span class="comment"> * complement sum of all 16-bit words in the buffer.</span>
    2156. 

  2156. <a name="l02124"></a>02124 <span class="comment"> *</span>
    2157. 

  2157. <a name="l02125"></a>02125 <span class="comment"> * See RFC1071.</span>
    2158. 

  2158. <a name="l02126"></a>02126 <span class="comment"> *</span>
    2159. 

  2159. <a name="l02127"></a>02127 <span class="comment"> * \param buf A pointer to the buffer over which the checksum is to be</span>
    2160. 

  2160. <a name="l02128"></a>02128 <span class="comment"> * computed.</span>
    2161. 

  2161. <a name="l02129"></a>02129 <span class="comment"> *</span>
    2162. 

  2162. <a name="l02130"></a>02130 <span class="comment"> * \param len The length of the buffer over which the checksum is to</span>
    2163. 

  2163. <a name="l02131"></a>02131 <span class="comment"> * be computed.</span>
    2164. 

  2164. <a name="l02132"></a>02132 <span class="comment"> *</span>
    2165. 

  2165. <a name="l02133"></a>02133 <span class="comment"> * \return The Internet checksum of the buffer.</span>
    2166. 

  2166. <a name="l02134"></a>02134 <span class="comment"> */</span>
    2167. 

  2167. <a name="l02135"></a>02135 <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a01684.html#gab6683dd83fe1c8de9a24086d4b69e907" title="Calculate the Internet checksum over a buffer.">uip_chksum</a>(<a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> *buf, <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> len);
    2168. 

  2168. <a name="l02136"></a>02136 <span class="comment"></span>
    2169. 

  2169. <a name="l02137"></a>02137 <span class="comment">/**</span>
    2170. 

  2170. <a name="l02138"></a>02138 <span class="comment"> * Calculate the IP header checksum of the packet header in uip_buf.</span>
    2171. 

  2171. <a name="l02139"></a>02139 <span class="comment"> *</span>
    2172. 

  2172. <a name="l02140"></a>02140 <span class="comment"> * The IP header checksum is the Internet checksum of the 20 bytes of</span>
    2173. 

  2173. <a name="l02141"></a>02141 <span class="comment"> * the IP header.</span>
    2174. 

  2174. <a name="l02142"></a>02142 <span class="comment"> *</span>
    2175. 

  2175. <a name="l02143"></a>02143 <span class="comment"> * \return The IP header checksum of the IP header in the uip_buf</span>
    2176. 

  2176. <a name="l02144"></a>02144 <span class="comment"> * buffer.</span>
    2177. 

  2177. <a name="l02145"></a>02145 <span class="comment"> */</span>
    2178. 

  2178. <a name="l02146"></a>02146 <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a01684.html#ga2addf34c7d457c1a7899a7e2171ef1e9" title="Calculate the IP header checksum of the packet header in uip_buf.">uip_ipchksum</a>(<span class="keywordtype">void</span>);
    2179. 

  2179. <a name="l02147"></a>02147 <span class="comment"></span>
    2180. 

  2180. <a name="l02148"></a>02148 <span class="comment">/**</span>
    2181. 

  2181. <a name="l02149"></a>02149 <span class="comment"> * Calculate the TCP checksum of the packet in uip_buf and uip_appdata.</span>
    2182. 

  2182. <a name="l02150"></a>02150 <span class="comment"> *</span>
    2183. 

  2183. <a name="l02151"></a>02151 <span class="comment"> * The TCP checksum is the Internet checksum of data contents of the</span>
    2184. 

  2184. <a name="l02152"></a>02152 <span class="comment"> * TCP segment, and a pseudo-header as defined in RFC793.</span>
    2185. 

  2185. <a name="l02153"></a>02153 <span class="comment"> *</span>
    2186. 

  2186. <a name="l02154"></a>02154 <span class="comment"> * \return The TCP checksum of the TCP segment in uip_buf and pointed</span>
    2187. 

  2187. <a name="l02155"></a>02155 <span class="comment"> * to by uip_appdata.</span>
    2188. 

  2188. <a name="l02156"></a>02156 <span class="comment"> */</span>
    2189. 

  2189. <a name="l02157"></a>02157 <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a01684.html#ga85b65e38aa74eba18979156f97a94a87" title="Calculate the TCP checksum of the packet in uip_buf and uip_appdata.">uip_tcpchksum</a>(<span class="keywordtype">void</span>);
    2190. 

  2190. <a name="l02158"></a>02158 <span class="comment"></span>
    2191. 

  2191. <a name="l02159"></a>02159 <span class="comment">/**</span>
    2192. 

  2192. <a name="l02160"></a>02160 <span class="comment"> * Calculate the UDP checksum of the packet in uip_buf and uip_appdata.</span>
    2193. 

  2193. <a name="l02161"></a>02161 <span class="comment"> *</span>
    2194. 

  2194. <a name="l02162"></a>02162 <span class="comment"> * The UDP checksum is the Internet checksum of data contents of the</span>
    2195. 

  2195. <a name="l02163"></a>02163 <span class="comment"> * UDP segment, and a pseudo-header as defined in RFC768.</span>
    2196. 

  2196. <a name="l02164"></a>02164 <span class="comment"> *</span>
    2197. 

  2197. <a name="l02165"></a>02165 <span class="comment"> * \return The UDP checksum of the UDP segment in uip_buf and pointed</span>
    2198. 

  2198. <a name="l02166"></a>02166 <span class="comment"> * to by uip_appdata.</span>
    2199. 

  2199. <a name="l02167"></a>02167 <span class="comment"> */</span>
    2200. 

  2200. <a name="l02168"></a>02168 <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a01684.html#ga7023a34ba9e9d03b5fbedbcb32924453" title="Calculate the UDP checksum of the packet in uip_buf and uip_appdata.">uip_udpchksum</a>(<span class="keywordtype">void</span>);
    2201. 

  2201. <a name="l02169"></a>02169 <span class="comment"></span>
    2202. 

  2202. <a name="l02170"></a>02170 <span class="comment">/**</span>
    2203. 

  2203. <a name="l02171"></a>02171 <span class="comment"> * Calculate the ICMP checksum of the packet in uip_buf.</span>
    2204. 

  2204. <a name="l02172"></a>02172 <span class="comment"> *</span>
    2205. 

  2205. <a name="l02173"></a>02173 <span class="comment"> * \return The ICMP checksum of the ICMP packet in uip_buf</span>
    2206. 

  2206. <a name="l02174"></a>02174 <span class="comment"> */</span>
    2207. 

  2207. <a name="l02175"></a>02175 <a class="code" href="a01668.html#ga77570ac4fcab86864fa1916e55676da2" title="The 16-bit unsigned data type.">u16_t</a> <a class="code" href="a01684.html#ga5e6741b8bd3e0961fb87e3f85da27a7f" title="Calculate the ICMP checksum of the packet in uip_buf.">uip_icmp6chksum</a>(<span class="keywordtype">void</span>);
    2208. 

  2208. <a name="l02176"></a>02176 
    2209. 

  2209. <a name="l02177"></a>02177 
    2210. 

  2210. <a name="l02178"></a>02178 <span class="preprocessor">#endif </span><span class="comment">/* __UIP_H__ */</span>
    2211. 

  2211. <a name="l02179"></a>02179 
    2212. 

  2212. <a name="l02180"></a>02180 <span class="comment"></span>
    2213. 

  2213. <a name="l02181"></a>02181 <span class="comment">/** @} */</span>
    2214. 

  2214. </pre></div></div>
    2215. 

  2215. <hr size="1"/><address style="text-align: right;"><small>Generated on Mon Apr 11 14:23:33 2011 for Contiki 2.5 by&nbsp;
    2216. 

  2216. <a href="http://www.doxygen.org/index.html">
    2217. 

  2217. <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.1 </small></address>
    2218. 

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    2219. 

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    2220. 

  2220.