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annotate packages/net/common/current/include/bootp.h @ 1667:dc5f9783d45a

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* include/network.h: Added a __THROW to perror so that it matches what is in stdio.h. Problem pointed out by Xyvid Harboe.
author asl
date Tue, 08 Jun 2004 17:58:20 +0000
parents e0c0827131d1
children
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1 //==========================================================================
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2 //
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3 // include/bootp.h
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4 //
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5 //==========================================================================
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6 //####BSDCOPYRIGHTBEGIN####
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7 //
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8 // -------------------------------------------
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9 //
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10 // Portions of this software may have been derived from OpenBSD,
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11 // FreeBSD or other sources, and are covered by the appropriate
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12 // copyright disclaimers included herein.
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13 //
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14 // Portions created by Red Hat are
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15 // Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
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16 //
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17 // -------------------------------------------
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18 //
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19 //####BSDCOPYRIGHTEND####
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20 //==========================================================================
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21
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22 /************************************************************************
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23 Copyright 1988, 1991 by Carnegie Mellon University
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24
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25 All Rights Reserved
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26
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27 Permission to use, copy, modify, and distribute this software and its
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28 documentation for any purpose and without fee is hereby granted, provided
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29 that the above copyright notice appear in all copies and that both that
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30 copyright notice and this permission notice appear in supporting
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31 documentation, and that the name of Carnegie Mellon University not be used
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32 in advertising or publicity pertaining to distribution of the software
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33 without specific, written prior permission.
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34
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35 CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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36 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
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37 IN NO EVENT SHALL CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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38 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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39 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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40 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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41 SOFTWARE.
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42 ************************************************************************/
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43
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44 #ifndef _BOOTP_H_
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45 #define _BOOTP_H_
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46
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47 /*
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48 * Bootstrap Protocol (BOOTP). RFC951 and RFC1395.
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49 *
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50 * This file specifies the "implementation-independent" BOOTP protocol
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51 * information which is common to both client and server.
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52 *
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53 */
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54
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55 #ifdef __ECOS
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56
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57 #include <pkgconf/system.h>
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58 #include <pkgconf/net.h>
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59
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60 #include <machine/types.h>
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61 #else
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62 #include "bptypes.h" /* for int32, u_int32 */
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63 #endif
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64
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65 #define BP_CHADDR_LEN 16
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66 #define BP_SNAME_LEN 64
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67 #define BP_FILE_LEN 128
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68
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69 /* std min packet size to transmit for DHCP relays to work */
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70 #define BP_STD_TX_MINPKTSZ (300)
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71
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72 #ifdef CYGPKG_NET_DHCP
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73 // The standard requires only 312 bytes here
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74 #define BP_VEND_LEN (312 + 32)
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75 #define BP_MINPKTSZ 576
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76 #else
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77 #define BP_VEND_LEN 64
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78 #define BP_MINPKTSZ 300 /* to check sizeof(struct bootp) */
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79 #endif
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80
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81 #define BP_MAX_OPTION_LEN 256
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82
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83 struct bootp {
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84 unsigned char bp_op; /* packet opcode type */
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85 unsigned char bp_htype; /* hardware addr type */
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86 unsigned char bp_hlen; /* hardware addr length */
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87 unsigned char bp_hops; /* gateway hops */
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88 #ifdef __ECOS
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89 u_int32_t bp_xid; /* transaction ID */
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90 #else
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91 unsigned int bp_xid; /* transaction ID */
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92 #endif
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93 unsigned short bp_secs; /* seconds since boot began */
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94 unsigned short bp_flags; /* RFC1532 broadcast, etc. */
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95 struct in_addr bp_ciaddr; /* client IP address */
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96 struct in_addr bp_yiaddr; /* 'your' IP address */
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97 struct in_addr bp_siaddr; /* server IP address */
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98 struct in_addr bp_giaddr; /* gateway IP address */
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99 unsigned char bp_chaddr[BP_CHADDR_LEN]; /* client hardware address */
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100 char bp_sname[BP_SNAME_LEN]; /* server host name */
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101 char bp_file[BP_FILE_LEN]; /* boot file name */
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102 unsigned char bp_vend[BP_VEND_LEN]; /* vendor-specific area */
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103 /* note that bp_vend can be longer, extending to end of packet. */
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104 };
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105
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106 /*
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107 * UDP port numbers, server and client.
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108 */
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109 #define IPPORT_BOOTPS 67
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110 #define IPPORT_BOOTPC 68
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111
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112 #define BOOTREPLY 2
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113 #define BOOTREQUEST 1
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114
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115 /*
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116 * Hardware types from Assigned Numbers RFC.
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117 */
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118 #define HTYPE_ETHERNET 1
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119 #define HTYPE_EXP_ETHERNET 2
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120 #define HTYPE_AX25 3
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121 #define HTYPE_PRONET 4
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122 #define HTYPE_CHAOS 5
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123 #define HTYPE_IEEE802 6
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124 #define HTYPE_ARCNET 7
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125
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126 /*
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127 * Vendor magic cookie (v_magic) for CMU
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128 */
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129 #define VM_CMU "CMU"
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130
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131 /*
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132 * Vendor magic cookie (v_magic) for RFC1048
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133 */
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134 #define VM_RFC1048 { 99, 130, 83, 99 }
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135
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136
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137
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138 /*
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139 * Tag values used to specify what information is being supplied in
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140 * the vendor (options) data area of the packet.
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141 */
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142 /* RFC 1048 */
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143 /* End of cookie */
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144 #define TAG_END ((unsigned char) 255)
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145 /* padding for alignment */
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146 #define TAG_PAD ((unsigned char) 0)
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147 /* Subnet mask */
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148 #define TAG_SUBNET_MASK ((unsigned char) 1)
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149 /* Time offset from UTC for this system */
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150 #define TAG_TIME_OFFSET ((unsigned char) 2)
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151 /* List of routers on this subnet */
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152 #define TAG_GATEWAY ((unsigned char) 3)
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153 /* List of rfc868 time servers available to client */
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154 #define TAG_TIME_SERVER ((unsigned char) 4)
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155 /* List of IEN 116 name servers */
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156 #define TAG_NAME_SERVER ((unsigned char) 5)
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157 /* List of DNS name servers */
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158 #define TAG_DOMAIN_SERVER ((unsigned char) 6)
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159 /* List of MIT-LCS UDL log servers */
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160 #define TAG_LOG_SERVER ((unsigned char) 7)
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161 /* List of rfc865 cookie servers */
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162 #define TAG_COOKIE_SERVER ((unsigned char) 8)
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163 /* List of rfc1179 printer servers (in order to try) */
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164 #define TAG_LPR_SERVER ((unsigned char) 9)
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165 /* List of Imagen Impress servers (in prefered order) */
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166 #define TAG_IMPRESS_SERVER ((unsigned char) 10)
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167 /* List of rfc887 Resourse Location servers */
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168 #define TAG_RLP_SERVER ((unsigned char) 11)
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169 /* Hostname of client */
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170 #define TAG_HOST_NAME ((unsigned char) 12)
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171 /* boot file size */
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172 #define TAG_BOOT_SIZE ((unsigned char) 13)
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173 /* RFC 1395 */
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174 /* path to dump to in case of crash */
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175 #define TAG_DUMP_FILE ((unsigned char) 14)
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176 /* domain name for use with the DNS */
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177 #define TAG_DOMAIN_NAME ((unsigned char) 15)
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178 /* IP address of the swap server for this machine */
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179 #define TAG_SWAP_SERVER ((unsigned char) 16)
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180 /* The path name to the root filesystem for this machine */
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181 #define TAG_ROOT_PATH ((unsigned char) 17)
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182 /* RFC 1497 */
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183 /* filename to tftp with more options in it */
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184 #define TAG_EXTEN_FILE ((unsigned char) 18)
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185 /* RFC 1533 */
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186 /* The following are in rfc1533 and may be used by BOOTP/DHCP */
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187 /* IP forwarding enable/disable */
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188 #define TAG_IP_FORWARD ((unsigned char) 19)
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189 /* Non-Local source routing enable/disable */
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190 #define TAG_IP_NLSR ((unsigned char) 20)
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191 /* List of pairs of addresses/masks to allow non-local source routing to */
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192 #define TAG_IP_POLICY_FILTER ((unsigned char) 21)
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193 /* Maximum size of datagrams client should be prepared to reassemble */
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194 #define TAG_IP_MAX_DRS ((unsigned char) 22)
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195 /* Default IP TTL */
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196 #define TAG_IP_TTL ((unsigned char) 23)
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197 /* Timeout in seconds to age path MTU values found with rfc1191 */
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198 #define TAG_IP_MTU_AGE ((unsigned char) 24)
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199 /* Table of MTU sizes to use when doing rfc1191 MTU discovery */
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200 #define TAG_IP_MTU_PLAT ((unsigned char) 25)
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201 /* MTU to use on this interface */
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202 #define TAG_IP_MTU ((unsigned char) 26)
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203 /* All subnets are local option */
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204 #define TAG_IP_SNARL ((unsigned char) 27)
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205 /* broadcast address */
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206 #define TAG_IP_BROADCAST ((unsigned char) 28)
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207 /* perform subnet mask discovery using ICMP */
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208 #define TAG_IP_SMASKDISC ((unsigned char) 29)
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209 /* act as a subnet mask server using ICMP */
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210 #define TAG_IP_SMASKSUPP ((unsigned char) 30)
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211 /* perform rfc1256 router discovery */
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212 #define TAG_IP_ROUTERDISC ((unsigned char) 31)
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213 /* address to send router solicitation requests */
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214 #define TAG_IP_ROUTER_SOL_ADDR ((unsigned char) 32)
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215 /* list of static routes to addresses (addr, router) pairs */
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216 #define TAG_IP_STATIC_ROUTES ((unsigned char) 33)
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217 /* use trailers (rfc893) when using ARP */
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218 #define TAG_IP_TRAILER_ENC ((unsigned char) 34)
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219 /* timeout in seconds for ARP cache entries */
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220 #define TAG_ARP_TIMEOUT ((unsigned char) 35)
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221 /* use either Ethernet version 2 (rfc894) or IEEE 802.3 (rfc1042) */
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222 #define TAG_ETHER_IEEE ((unsigned char) 36)
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223 /* default TCP TTL when sending TCP segments */
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224 #define TAG_IP_TCP_TTL ((unsigned char) 37)
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225 /* time for client to wait before sending a keepalive on a TCP connection */
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226 #define TAG_IP_TCP_KA_INT ((unsigned char) 38)
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227 /* don't send keepalive with an octet of garbage for compatability */
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228 #define TAG_IP_TCP_KA_GARBAGE ((unsigned char) 39)
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229 /* NIS domainname */
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230 #define TAG_NIS_DOMAIN ((unsigned char) 40)
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231 /* list of NIS servers */
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232 #define TAG_NIS_SERVER ((unsigned char) 41)
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233 /* list of NTP servers */
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234 #define TAG_NTP_SERVER ((unsigned char) 42)
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235 /* and stuff vendors may want to add */
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236 #define TAG_VEND_SPECIFIC ((unsigned char) 43)
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237 /* NetBios over TCP/IP name server */
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238 #define TAG_NBNS_SERVER ((unsigned char) 44)
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239 /* NetBios over TCP/IP NBDD servers (rfc1001/1002) */
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240 #define TAG_NBDD_SERVER ((unsigned char) 45)
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241 /* NetBios over TCP/IP node type option for use with above */
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242 #define TAG_NBOTCP_OTPION ((unsigned char) 46)
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243 /* NetBios over TCP/IP scopt option for use with above */
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244 #define TAG_NB_SCOPE ((unsigned char) 47)
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245 /* list of X Window system font servers */
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246 #define TAG_XFONT_SERVER ((unsigned char) 48)
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247 /* list of systems running X Display Manager (xdm) available to this client */
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248 #define TAG_XDISPLAY_SERVER ((unsigned char) 49)
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249
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250 /* While the following are only allowed for DHCP */
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251 /* DHCP requested IP address */
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252 #define TAG_DHCP_REQ_IP ((unsigned char) 50)
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253 /* DHCP time for lease of IP address */
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254 #define TAG_DHCP_LEASE_TIME ((unsigned char) 51)
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255 /* DHCP options overload */
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256 #define TAG_DHCP_OPTOVER ((unsigned char) 52)
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257 /* DHCP message type */
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258 #define TAG_DHCP_MESS_TYPE ((unsigned char) 53)
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259 /* DHCP server identification */
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260 #define TAG_DHCP_SERVER_ID ((unsigned char) 54)
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261 /* DHCP ordered list of requested parameters */
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262 #define TAG_DHCP_PARM_REQ_LIST ((unsigned char) 55)
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263 /* DHCP reply message */
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264 #define TAG_DHCP_TEXT_MESSAGE ((unsigned char) 56)
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265 /* DHCP maximum packet size willing to accept */
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266 #define TAG_DHCP_MAX_MSGSZ ((unsigned char) 57)
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267 /* DHCP time 'til client needs to renew */
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268 #define TAG_DHCP_RENEWAL_TIME ((unsigned char) 58)
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269 /* DHCP time 'til client needs to rebind */
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270 #define TAG_DHCP_REBIND_TIME ((unsigned char) 59)
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271 /* DHCP class identifier */
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272 #define TAG_DHCP_CLASSID ((unsigned char) 60)
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273 /* DHCP client unique identifier */
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274 #define TAG_DHCP_CLIENTID ((unsigned char) 61)
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275
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276 /* XXX - Add new tags here */
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277
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278
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279 /*
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280 * "vendor" data permitted for CMU bootp clients.
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281 */
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282
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283 struct cmu_vend {
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284 char v_magic[4]; /* magic number */
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285 #ifdef __ECOS
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286 u_int32_t v_flags; /* flags/opcodes, etc. */
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287 #else
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288 unsigned int32 v_flags; /* flags/opcodes, etc. */
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289 #endif
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290 struct in_addr v_smask; /* Subnet mask */
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291 struct in_addr v_dgate; /* Default gateway */
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292 struct in_addr v_dns1, v_dns2; /* Domain name servers */
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293 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */
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294 struct in_addr v_ts1, v_ts2; /* Time servers */
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295 #ifdef __ECOS
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296 int32_t v_unused[6]; /* currently unused */
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297 #else
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298 int32 v_unused[6]; /* currently unused */
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299 #endif
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300 };
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301
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302
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303 /* v_flags values */
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304 #define VF_SMASK 1 /* Subnet mask field contains valid data */
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305
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306 #ifdef __ECOS
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307 #ifdef CYGHWR_NET_DRIVER_ETH0
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308 extern struct bootp eth0_bootp_data;
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309 extern cyg_bool_t eth0_up;
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310 extern const char *eth0_name;
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311 #endif
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312 #ifdef CYGHWR_NET_DRIVER_ETH1
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313 extern struct bootp eth1_bootp_data;
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314 extern cyg_bool_t eth1_up;
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315 extern const char *eth1_name;
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316 #endif
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317
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318 // ------------------------------------------------------------------------
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319 // Initialize your own bootp record however you like, as far as is needed
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320 // to bring up an interface.
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321 __externC void
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322 build_bootp_record(struct bootp *bp,
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323 const char *if_name,
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324 const char *addrs_ip,
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325 const char *addrs_netmask,
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326 const char *addrs_broadcast,
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327 const char *addrs_gateway,
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328 const char *addrs_server);
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329
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330 // Do bootp to fill in the bootp record from the net (other interfaces must
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331 // be down for this to work, because of the "half-up" state of the
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332 // interface in use)
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333 __externC cyg_bool_t do_bootp(const char *interface, struct bootp *res);
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334
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335 // Initialize an interface (which is down) according to a bootp structure
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336 __externC cyg_bool_t init_net(const char *interface, struct bootp *res);
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337 #ifdef CYGPKG_NET_INET6
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338 __externC cyg_bool_t init_net_IPv6(const char *intf, struct bootp *bp, char *prefix);
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339 #endif
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340
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341 // Dump contents to diag_printf
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342 __externC void show_bootp(const char *interface, struct bootp *res);
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343
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344 // Interrogate a bootp record for a particular option
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345 __externC cyg_bool_t get_bootp_option(struct bootp *bp, unsigned char tag, void *res, unsigned int * length);
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346
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347 // ------------------------------------------------------------------------
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348 // This isn't exactly the right place for this since bootp is not involved
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349 // BUT you will only be using this API if you are using bootp-style
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350 // initialization of the other interfaces; it fits here in a documentation
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351 // sense.
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352 __externC cyg_bool_t init_loopback_interface(int lo);
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353
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354 // ------------------------------------------------------------------------
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355 // Do all the above automatically according to the configuration. Do not
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356 // mix using this and making the above calls yourself.
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357 // (this is also declared in the much simpler API in network.h)
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358 __externC void init_all_network_interfaces(void);
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359
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360 #endif
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361
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362 #endif // _BOOTP_H_