1 | /**
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2 | * \defgroup uipopt Configuration options for uIP
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3 | * @{
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4 | *
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5 | * uIP is configured using the per-project configuration file
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6 | * uipopt.h. This file contains all compile-time options for uIP and
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7 | * should be tweaked to match each specific project. The uIP
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8 | * distribution contains a documented example "uipopt.h" that can be
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9 | * copied and modified for each project.
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10 | *
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11 | * \note Most of the configuration options in the uipopt.h should not
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12 | * be changed, but rather the per-project uip-conf.h file.
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13 | */
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14 |
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15 | /**
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16 | * \file
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17 | * Configuration options for uIP.
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18 | * \author Adam Dunkels <adam@dunkels.com>
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19 | *
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20 | * This file is used for tweaking various configuration options for
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21 | * uIP. You should make a copy of this file into one of your project's
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22 | * directories instead of editing this example "uipopt.h" file that
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23 | * comes with the uIP distribution.
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24 | */
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25 |
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26 | /*
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27 | * Copyright (c) 2001-2003, Adam Dunkels.
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28 | * All rights reserved.
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29 | *
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30 | * Redistribution and use in source and binary forms, with or without
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31 | * modification, are permitted provided that the following conditions
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32 | * are met:
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33 | * 1. Redistributions of source code must retain the above copyright
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34 | * notice, this list of conditions and the following disclaimer.
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35 | * 2. Redistributions in binary form must reproduce the above copyright
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36 | * notice, this list of conditions and the following disclaimer in the
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37 | * documentation and/or other materials provided with the distribution.
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38 | * 3. The name of the author may not be used to endorse or promote
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39 | * products derived from this software without specific prior
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40 | * written permission.
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41 | *
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42 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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43 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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44 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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45 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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46 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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47 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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48 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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49 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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50 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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51 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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52 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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53 | *
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54 | * This file is part of the uIP TCP/IP stack.
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55 | *
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56 | * $Id: uipopt.h 108 2015-06-11 09:15:46Z coas-nagasima $
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57 | *
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58 | */
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59 |
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60 | #ifndef __UIPOPT_H__
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61 | #define __UIPOPT_H__
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62 |
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63 | #ifndef UIP_LITTLE_ENDIAN
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64 | #define UIP_LITTLE_ENDIAN 3412
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65 | #endif /* UIP_LITTLE_ENDIAN */
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66 | #ifndef UIP_BIG_ENDIAN
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67 | #define UIP_BIG_ENDIAN 1234
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68 | #endif /* UIP_BIG_ENDIAN */
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69 |
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70 | #include "uip-conf.h"
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71 |
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72 | /*------------------------------------------------------------------------------*/
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73 |
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74 | /**
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75 | * \name Static configuration options
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76 | * @{
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77 | *
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78 | * These configuration options can be used for setting the IP address
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79 | * settings statically, but only if UIP_FIXEDADDR is set to 1. The
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80 | * configuration options for a specific node includes IP address,
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81 | * netmask and default router as well as the Ethernet address. The
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82 | * netmask, default router and Ethernet address are appliciable only
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83 | * if uIP should be run over Ethernet.
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84 | *
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85 | * All of these should be changed to suit your project.
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86 | */
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87 |
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88 | /**
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89 | * Determines if uIP should use a fixed IP address or not.
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90 | *
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91 | * If uIP should use a fixed IP address, the settings are set in the
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92 | * uipopt.h file. If not, the macros uip_sethostaddr(),
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93 | * uip_setdraddr() and uip_setnetmask() should be used instead.
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94 | *
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95 | * \hideinitializer
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96 | */
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97 | #define UIP_FIXEDADDR 0
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98 |
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99 | /**
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100 | * Ping IP address asignment.
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101 | *
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102 | * uIP uses a "ping" packets for setting its own IP address if this
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103 | * option is set. If so, uIP will start with an empty IP address and
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104 | * the destination IP address of the first incoming "ping" (ICMP echo)
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105 | * packet will be used for setting the hosts IP address.
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106 | *
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107 | * \note This works only if UIP_FIXEDADDR is 0.
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108 | *
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109 | * \hideinitializer
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110 | */
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111 | #ifdef UIP_CONF_PINGADDRCONF
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112 | #define UIP_PINGADDRCONF UIP_CONF_PINGADDRCONF
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113 | #else /* UIP_CONF_PINGADDRCONF */
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114 | #define UIP_PINGADDRCONF 0
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115 | #endif /* UIP_CONF_PINGADDRCONF */
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116 |
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117 |
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118 | /**
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119 | * Specifies if the uIP ARP module should be compiled with a fixed
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120 | * Ethernet MAC address or not.
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121 | *
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122 | * If this configuration option is 0, the macro uip_setethaddr() can
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123 | * be used to specify the Ethernet address at run-time.
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124 | *
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125 | * \hideinitializer
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126 | */
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127 | #define UIP_FIXEDETHADDR 0
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128 |
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129 | /** @} */
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130 | /*------------------------------------------------------------------------------*/
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131 | /**
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132 | * \name IP configuration options
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133 | * @{
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134 | *
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135 | */
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136 | /**
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137 | * The IP TTL (time to live) of IP packets sent by uIP.
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138 | *
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139 | * This should normally not be changed.
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140 | */
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141 | #define UIP_TTL 64
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142 |
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143 | /**
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144 | * Turn on support for IP packet reassembly.
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145 | *
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146 | * uIP supports reassembly of fragmented IP packets. This features
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147 | * requires an additonal amount of RAM to hold the reassembly buffer
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148 | * and the reassembly code size is approximately 700 bytes. The
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149 | * reassembly buffer is of the same size as the uip_buf buffer
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150 | * (configured by UIP_BUFSIZE).
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151 | *
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152 | * \note IP packet reassembly is not heavily tested.
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153 | *
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154 | * \hideinitializer
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155 | */
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156 | #define UIP_REASSEMBLY 0
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157 |
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158 | /**
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159 | * The maximum time an IP fragment should wait in the reassembly
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160 | * buffer before it is dropped.
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161 | *
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162 | */
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163 | #define UIP_REASS_MAXAGE 40
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164 |
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165 | /** @} */
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166 |
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167 | /*------------------------------------------------------------------------------*/
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168 | /**
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169 | * \name UDP configuration options
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170 | * @{
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171 | */
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172 |
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173 | /**
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174 | * Toggles wether UDP support should be compiled in or not.
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175 | *
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176 | * \hideinitializer
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177 | */
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178 | #ifdef UIP_CONF_UDP
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179 | #define UIP_UDP UIP_CONF_UDP
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180 | #else /* UIP_CONF_UDP */
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181 | #define UIP_UDP 0
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182 | #endif /* UIP_CONF_UDP */
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183 |
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184 | /**
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185 | * Toggles if UDP checksums should be used or not.
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186 | *
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187 | * \note Support for UDP checksums is currently not included in uIP,
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188 | * so this option has no function.
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189 | *
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190 | * \hideinitializer
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191 | */
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192 | #ifdef UIP_CONF_UDP_CHECKSUMS
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193 | #define UIP_UDP_CHECKSUMS UIP_CONF_UDP_CHECKSUMS
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194 | #else
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195 | #define UIP_UDP_CHECKSUMS 0
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196 | #endif
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197 |
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198 | /**
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199 | * The maximum amount of concurrent UDP connections.
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200 | *
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201 | * \hideinitializer
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202 | */
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203 | #ifdef UIP_CONF_UDP_CONNS
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204 | #define UIP_UDP_CONNS UIP_CONF_UDP_CONNS
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205 | #else /* UIP_CONF_UDP_CONNS */
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206 | #define UIP_UDP_CONNS 10
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207 | #endif /* UIP_CONF_UDP_CONNS */
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208 |
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209 | /**
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210 | * The name of the function that should be called when UDP datagrams arrive.
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211 | *
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212 | * \hideinitializer
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213 | */
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214 |
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215 |
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216 | /** @} */
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217 | /*------------------------------------------------------------------------------*/
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218 | /**
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219 | * \name TCP configuration options
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220 | * @{
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221 | */
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222 |
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223 | /**
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224 | * Determines if support for opening connections from uIP should be
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225 | * compiled in.
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226 | *
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227 | * If the applications that are running on top of uIP for this project
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228 | * do not need to open outgoing TCP connections, this configration
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229 | * option can be turned off to reduce the code size of uIP.
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230 | *
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231 | * \hideinitializer
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232 | */
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233 | #define UIP_ACTIVE_OPEN 1
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234 |
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235 | /**
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236 | * The maximum number of simultaneously open TCP connections.
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237 | *
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238 | * Since the TCP connections are statically allocated, turning this
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239 | * configuration knob down results in less RAM used. Each TCP
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240 | * connection requires approximatly 30 bytes of memory.
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241 | *
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242 | * \hideinitializer
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243 | */
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244 | #ifndef UIP_CONF_MAX_CONNECTIONS
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245 | #define UIP_CONNS 10
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246 | #else /* UIP_CONF_MAX_CONNECTIONS */
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247 | #define UIP_CONNS UIP_CONF_MAX_CONNECTIONS
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248 | #endif /* UIP_CONF_MAX_CONNECTIONS */
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249 |
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250 |
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251 | /**
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252 | * The maximum number of simultaneously listening TCP ports.
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253 | *
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254 | * Each listening TCP port requires 2 bytes of memory.
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255 | *
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256 | * \hideinitializer
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257 | */
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258 | #ifndef UIP_CONF_MAX_LISTENPORTS
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259 | #define UIP_LISTENPORTS 20
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260 | #else /* UIP_CONF_MAX_LISTENPORTS */
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261 | #define UIP_LISTENPORTS UIP_CONF_MAX_LISTENPORTS
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262 | #endif /* UIP_CONF_MAX_LISTENPORTS */
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263 |
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264 | /**
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265 | * Determines if support for TCP urgent data notification should be
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266 | * compiled in.
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267 | *
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268 | * Urgent data (out-of-band data) is a rarely used TCP feature that
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269 | * very seldom would be required.
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270 | *
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271 | * \hideinitializer
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272 | */
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273 | #define UIP_URGDATA 0
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274 |
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275 | /**
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276 | * The initial retransmission timeout counted in timer pulses.
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277 | *
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278 | * This should not be changed.
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279 | */
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280 | #define UIP_RTO 3
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281 |
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282 | /**
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283 | * The maximum number of times a segment should be retransmitted
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284 | * before the connection should be aborted.
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285 | *
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286 | * This should not be changed.
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287 | */
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288 | #define UIP_MAXRTX 8
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289 |
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290 | /**
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291 | * The maximum number of times a SYN segment should be retransmitted
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292 | * before a connection request should be deemed to have been
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293 | * unsuccessful.
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294 | *
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295 | * This should not need to be changed.
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296 | */
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297 | #define UIP_MAXSYNRTX 5
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298 |
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299 | /**
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300 | * The TCP maximum segment size.
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301 | *
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302 | * This is should not be to set to more than
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303 | * UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN.
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304 | */
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305 | #define UIP_TCP_MSS (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
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306 |
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307 | /**
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308 | * The size of the advertised receiver's window.
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309 | *
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310 | * Should be set low (i.e., to the size of the uip_buf buffer) is the
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311 | * application is slow to process incoming data, or high (32768 bytes)
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312 | * if the application processes data quickly.
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313 | *
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314 | * \hideinitializer
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315 | */
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316 | #ifndef UIP_CONF_RECEIVE_WINDOW
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317 | #define UIP_RECEIVE_WINDOW UIP_TCP_MSS
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318 | #else
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319 | #define UIP_RECEIVE_WINDOW UIP_CONF_RECEIVE_WINDOW
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320 | #endif
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321 |
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322 | /**
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323 | * How long a connection should stay in the TIME_WAIT state.
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324 | *
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325 | * This configiration option has no real implication, and it should be
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326 | * left untouched.
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327 | */
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328 | #define UIP_TIME_WAIT_TIMEOUT 120
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329 |
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330 |
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331 | /** @} */
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332 | /*------------------------------------------------------------------------------*/
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333 | /**
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334 | * \name ARP configuration options
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335 | * @{
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336 | */
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337 |
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338 | /**
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339 | * The size of the ARP table.
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340 | *
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341 | * This option should be set to a larger value if this uIP node will
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342 | * have many connections from the local network.
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343 | *
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344 | * \hideinitializer
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345 | */
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346 | #ifdef UIP_CONF_ARPTAB_SIZE
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347 | #define UIP_ARPTAB_SIZE UIP_CONF_ARPTAB_SIZE
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348 | #else
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349 | #define UIP_ARPTAB_SIZE 8
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350 | #endif
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351 |
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352 | /**
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353 | * The maxium age of ARP table entries measured in 10ths of seconds.
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354 | *
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355 | * An UIP_ARP_MAXAGE of 120 corresponds to 20 minutes (BSD
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356 | * default).
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357 | */
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358 | #define UIP_ARP_MAXAGE 120
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359 |
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360 | /** @} */
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361 |
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362 | /*------------------------------------------------------------------------------*/
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363 |
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364 | /**
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365 | * \name General configuration options
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366 | * @{
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367 | */
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368 |
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369 | /**
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370 | * The size of the uIP packet buffer.
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371 | *
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372 | * The uIP packet buffer should not be smaller than 60 bytes, and does
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373 | * not need to be larger than 1500 bytes. Lower size results in lower
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374 | * TCP throughput, larger size results in higher TCP throughput.
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375 | *
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376 | * \hideinitializer
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377 | */
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378 | #ifndef UIP_CONF_BUFFER_SIZE
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379 | #define UIP_BUFSIZE 400
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380 | #else /* UIP_CONF_BUFFER_SIZE */
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381 | #define UIP_BUFSIZE UIP_CONF_BUFFER_SIZE
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382 | #endif /* UIP_CONF_BUFFER_SIZE */
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383 |
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384 |
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385 | /**
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386 | * Determines if statistics support should be compiled in.
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387 | *
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388 | * The statistics is useful for debugging and to show the user.
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389 | *
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390 | * \hideinitializer
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391 | */
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392 | #ifndef UIP_CONF_STATISTICS
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393 | #define UIP_STATISTICS 0
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394 | #else /* UIP_CONF_STATISTICS */
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395 | #define UIP_STATISTICS UIP_CONF_STATISTICS
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396 | #endif /* UIP_CONF_STATISTICS */
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397 |
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398 | /**
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399 | * Determines if logging of certain events should be compiled in.
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400 | *
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401 | * This is useful mostly for debugging. The function uip_log()
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402 | * must be implemented to suit the architecture of the project, if
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403 | * logging is turned on.
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404 | *
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405 | * \hideinitializer
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406 | */
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407 | #ifndef UIP_CONF_LOGGING
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408 | #define UIP_LOGGING 0
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409 | #else /* UIP_CONF_LOGGING */
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410 | #define UIP_LOGGING UIP_CONF_LOGGING
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411 | #endif /* UIP_CONF_LOGGING */
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412 |
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413 | /**
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414 | * Broadcast support.
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415 | *
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416 | * This flag configures IP broadcast support. This is useful only
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417 | * together with UDP.
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418 | *
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419 | * \hideinitializer
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420 | *
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421 | */
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422 | #ifndef UIP_CONF_BROADCAST
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423 | #define UIP_BROADCAST 0
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424 | #else /* UIP_CONF_BROADCAST */
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425 | #define UIP_BROADCAST UIP_CONF_BROADCAST
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426 | #endif /* UIP_CONF_BROADCAST */
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427 |
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428 | /**
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429 | * Print out a uIP log message.
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430 | *
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431 | * This function must be implemented by the module that uses uIP, and
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432 | * is called by uIP whenever a log message is generated.
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433 | */
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434 | void uip_log(char *msg);
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435 |
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436 | /**
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437 | * The link level header length.
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438 | *
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439 | * This is the offset into the uip_buf where the IP header can be
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440 | * found. For Ethernet, this should be set to 14. For SLIP, this
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441 | * should be set to 0.
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442 | *
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443 | * \hideinitializer
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444 | */
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445 | #ifdef UIP_CONF_LLH_LEN
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446 | #define UIP_LLH_LEN UIP_CONF_LLH_LEN
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447 | #else /* UIP_CONF_LLH_LEN */
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448 | #define UIP_LLH_LEN 14
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449 | #endif /* UIP_CONF_LLH_LEN */
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450 |
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451 | /** @} */
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452 | /*------------------------------------------------------------------------------*/
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453 | /**
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454 | * \name CPU architecture configuration
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455 | * @{
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456 | *
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457 | * The CPU architecture configuration is where the endianess of the
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458 | * CPU on which uIP is to be run is specified. Most CPUs today are
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459 | * little endian, and the most notable exception are the Motorolas
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460 | * which are big endian. The BYTE_ORDER macro should be changed to
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461 | * reflect the CPU architecture on which uIP is to be run.
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462 | */
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463 |
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464 | /**
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465 | * The byte order of the CPU architecture on which uIP is to be run.
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466 | *
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467 | * This option can be either BIG_ENDIAN (Motorola byte order) or
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468 | * LITTLE_ENDIAN (Intel byte order).
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469 | *
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470 | * \hideinitializer
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471 | */
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472 | #ifdef UIP_CONF_BYTE_ORDER
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473 | #define UIP_BYTE_ORDER UIP_CONF_BYTE_ORDER
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474 | #else /* UIP_CONF_BYTE_ORDER */
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475 | #define UIP_BYTE_ORDER UIP_LITTLE_ENDIAN
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476 | #endif /* UIP_CONF_BYTE_ORDER */
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477 |
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478 | /** @} */
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479 | /*------------------------------------------------------------------------------*/
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480 |
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481 | /**
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482 | * \name Appication specific configurations
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483 | * @{
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484 | *
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485 | * An uIP application is implemented using a single application
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486 | * function that is called by uIP whenever a TCP/IP event occurs. The
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487 | * name of this function must be registered with uIP at compile time
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488 | * using the UIP_APPCALL definition.
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489 | *
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490 | * uIP applications can store the application state within the
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491 | * uip_conn structure by specifying the type of the application
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492 | * structure by typedef:ing the type uip_tcp_appstate_t and uip_udp_appstate_t.
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493 | *
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494 | * The file containing the definitions must be included in the
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495 | * uipopt.h file.
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496 | *
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497 | * The following example illustrates how this can look.
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498 | \code
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499 |
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500 | void httpd_appcall(void);
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501 | #define UIP_APPCALL httpd_appcall
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502 |
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503 | struct httpd_state {
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504 | u8_t state;
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505 | u16_t count;
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506 | char *dataptr;
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507 | char *script;
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508 | };
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509 | typedef struct httpd_state uip_tcp_appstate_t
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510 | \endcode
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511 | */
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512 |
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513 | /**
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514 | * \var #define UIP_APPCALL
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515 | *
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516 | * The name of the application function that uIP should call in
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517 | * response to TCP/IP events.
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518 | *
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519 | */
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520 |
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521 | /**
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522 | * \var typedef uip_tcp_appstate_t
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523 | *
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524 | * The type of the application state that is to be stored in the
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525 | * uip_conn structure. This usually is typedef:ed to a struct holding
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526 | * application state information.
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527 | */
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528 |
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529 | /**
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530 | * \var typedef uip_udp_appstate_t
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531 | *
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532 | * The type of the application state that is to be stored in the
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533 | * uip_conn structure. This usually is typedef:ed to a struct holding
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534 | * application state information.
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535 | */
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536 | /** @} */
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537 | /** @} */
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538 |
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539 | #endif /* __UIPOPT_H__ */
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