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annotate packages/redboot/current/include/net/bootp.h @ 231:4ebdd3788c30

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Merge gateway support from Grant Edwards
author gthomas
date Tue, 09 Jul 2002 20:23:47 +0000
parents d2c90368aeef
children 38dad94e75ce
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1 //==========================================================================
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2 //
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3 // net/bootp.h
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4 //
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5 // Stand-alone BOOTP support for RedBoot
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 // Copyright (C) 2002 Gary Thomas
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13 //
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14 // eCos is free software; you can redistribute it and/or modify it under
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15 // the terms of the GNU General Public License as published by the Free
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16 // Software Foundation; either version 2 or (at your option) any later version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License along
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24 // with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use macros
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28 // or inline functions from this file, or you compile this file and link it
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29 // with other works to produce a work based on this file, this file does not
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30 // by itself cause the resulting work to be covered by the GNU General Public
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31 // License. However the source code for this file must still be made available
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32 // in accordance with section (3) of the GNU General Public License.
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33 //
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34 // This exception does not invalidate any other reasons why a work based on
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35 // this file might be covered by the GNU General Public License.
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36 //
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37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 // at http://sources.redhat.com/ecos/ecos-license/
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39 // -------------------------------------------
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40 //####ECOSGPLCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): gthomas
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45 // Contributors: gthomas
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46 // Date: 2000-07-14
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47 // Purpose:
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48 // Description:
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49 //
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50 // This code is part of RedBoot (tm).
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51 //
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52 //####DESCRIPTIONEND####
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53 //
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54 //==========================================================================
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55
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56 /************************************************************************
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57 Copyright 1988, 1991 by Carnegie Mellon University
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58
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59 All Rights Reserved
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60
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61 Permission to use, copy, modify, and distribute this software and its
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62 documentation for any purpose and without fee is hereby granted, provided
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63 that the above copyright notice appear in all copies and that both that
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64 copyright notice and this permission notice appear in supporting
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65 documentation, and that the name of Carnegie Mellon University not be used
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66 in advertising or publicity pertaining to distribution of the software
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67 without specific, written prior permission.
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68
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69 CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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70 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
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71 IN NO EVENT SHALL CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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72 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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73 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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74 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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75 SOFTWARE.
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76 ************************************************************************/
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77
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78 #ifndef _BOOTP_H_
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79 #define _BOOTP_H_
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80
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81 /*
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82 * Bootstrap Protocol (BOOTP). RFC951 and RFC1395.
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83 *
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84 * This file specifies the "implementation-independent" BOOTP protocol
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85 * information which is common to both client and server.
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86 *
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87 */
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88
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89 #define BP_CHADDR_LEN 16
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90 #define BP_SNAME_LEN 64
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91 #define BP_FILE_LEN 128
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92 #define BP_VEND_LEN 312
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93 #define BP_MINPKTSZ 300 /* to check sizeof(struct bootp) */
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94
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95 typedef struct bootp {
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96 unsigned char bp_op; /* packet opcode type */
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97 unsigned char bp_htype; /* hardware addr type */
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98 unsigned char bp_hlen; /* hardware addr length */
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99 unsigned char bp_hops; /* gateway hops */
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100 unsigned int bp_xid; /* transaction ID */
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101 unsigned short bp_secs; /* seconds since boot began */
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102 unsigned short bp_flags; /* RFC1532 broadcast, etc. */
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103 struct in_addr bp_ciaddr; /* client IP address */
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104 struct in_addr bp_yiaddr; /* 'your' IP address */
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105 struct in_addr bp_siaddr; /* server IP address */
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106 struct in_addr bp_giaddr; /* gateway IP address */
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107 unsigned char bp_chaddr[BP_CHADDR_LEN]; /* client hardware address */
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108 char bp_sname[BP_SNAME_LEN]; /* server host name */
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109 char bp_file[BP_FILE_LEN]; /* boot file name */
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110 unsigned char bp_vend[BP_VEND_LEN]; /* vendor-specific area */
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111 /* note that bp_vend can be longer, extending to end of packet. */
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112 } bootp_header_t;
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113
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114 /*
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115 * UDP port numbers, server and client.
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116 */
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117 #define IPPORT_BOOTPS 67
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118 #define IPPORT_BOOTPC 68
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119
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120 #define BOOTREPLY 2
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121 #define BOOTREQUEST 1
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122
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123 /*
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124 * Hardware types from Assigned Numbers RFC.
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125 */
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126 #define HTYPE_ETHERNET 1
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127 #define HTYPE_EXP_ETHERNET 2
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128 #define HTYPE_AX25 3
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129 #define HTYPE_PRONET 4
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130 #define HTYPE_CHAOS 5
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131 #define HTYPE_IEEE802 6
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132 #define HTYPE_ARCNET 7
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133
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134 /*
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135 * Vendor magic cookie (v_magic) for CMU
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136 */
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137 #define VM_CMU "CMU"
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138
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139 /*
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140 * Vendor magic cookie (v_magic) for RFC1048
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141 */
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142 #define VM_RFC1048 { 99, 130, 83, 99 }
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143
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144
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145
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146 /*
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147 * Tag values used to specify what information is being supplied in
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148 * the vendor (options) data area of the packet.
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149 */
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150 /* RFC 1048 */
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151 /* End of cookie */
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152 #define TAG_END ((unsigned char) 255)
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153 /* padding for alignment */
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154 #define TAG_PAD ((unsigned char) 0)
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155 /* Subnet mask */
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156 #define TAG_SUBNET_MASK ((unsigned char) 1)
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157 /* Time offset from UTC for this system */
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158 #define TAG_TIME_OFFSET ((unsigned char) 2)
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159 /* List of routers on this subnet */
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160 #define TAG_GATEWAY ((unsigned char) 3)
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161 /* List of rfc868 time servers available to client */
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162 #define TAG_TIME_SERVER ((unsigned char) 4)
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163 /* List of IEN 116 name servers */
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164 #define TAG_NAME_SERVER ((unsigned char) 5)
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165 /* List of DNS name servers */
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166 #define TAG_DOMAIN_SERVER ((unsigned char) 6)
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167 /* List of MIT-LCS UDL log servers */
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168 #define TAG_LOG_SERVER ((unsigned char) 7)
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169 /* List of rfc865 cookie servers */
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170 #define TAG_COOKIE_SERVER ((unsigned char) 8)
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171 /* List of rfc1179 printer servers (in order to try) */
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172 #define TAG_LPR_SERVER ((unsigned char) 9)
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173 /* List of Imagen Impress servers (in prefered order) */
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174 #define TAG_IMPRESS_SERVER ((unsigned char) 10)
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175 /* List of rfc887 Resourse Location servers */
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176 #define TAG_RLP_SERVER ((unsigned char) 11)
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177 /* Hostname of client */
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178 #define TAG_HOST_NAME ((unsigned char) 12)
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179 /* boot file size */
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180 #define TAG_BOOT_SIZE ((unsigned char) 13)
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181 /* RFC 1395 */
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182 /* path to dump to in case of crash */
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183 #define TAG_DUMP_FILE ((unsigned char) 14)
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184 /* domain name for use with the DNS */
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185 #define TAG_DOMAIN_NAME ((unsigned char) 15)
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186 /* IP address of the swap server for this machine */
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187 #define TAG_SWAP_SERVER ((unsigned char) 16)
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188 /* The path name to the root filesystem for this machine */
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189 #define TAG_ROOT_PATH ((unsigned char) 17)
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190 /* RFC 1497 */
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191 /* filename to tftp with more options in it */
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192 #define TAG_EXTEN_FILE ((unsigned char) 18)
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193 /* RFC 1533 */
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194 /* The following are in rfc1533 and may be used by BOOTP/DHCP */
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195 /* IP forwarding enable/disable */
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196 #define TAG_IP_FORWARD ((unsigned char) 19)
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197 /* Non-Local source routing enable/disable */
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198 #define TAG_IP_NLSR ((unsigned char) 20)
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199 /* List of pairs of addresses/masks to allow non-local source routing to */
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200 #define TAG_IP_POLICY_FILTER ((unsigned char) 21)
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201 /* Maximum size of datagrams client should be prepared to reassemble */
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202 #define TAG_IP_MAX_DRS ((unsigned char) 22)
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203 /* Default IP TTL */
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204 #define TAG_IP_TTL ((unsigned char) 23)
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205 /* Timeout in seconds to age path MTU values found with rfc1191 */
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206 #define TAG_IP_MTU_AGE ((unsigned char) 24)
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207 /* Table of MTU sizes to use when doing rfc1191 MTU discovery */
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208 #define TAG_IP_MTU_PLAT ((unsigned char) 25)
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209 /* MTU to use on this interface */
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210 #define TAG_IP_MTU ((unsigned char) 26)
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211 /* All subnets are local option */
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212 #define TAG_IP_SNARL ((unsigned char) 27)
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213 /* broadcast address */
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214 #define TAG_IP_BROADCAST ((unsigned char) 28)
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215 /* perform subnet mask discovery using ICMP */
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216 #define TAG_IP_SMASKDISC ((unsigned char) 29)
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217 /* act as a subnet mask server using ICMP */
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218 #define TAG_IP_SMASKSUPP ((unsigned char) 30)
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219 /* perform rfc1256 router discovery */
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220 #define TAG_IP_ROUTERDISC ((unsigned char) 31)
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221 /* address to send router solicitation requests */
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222 #define TAG_IP_ROUTER_SOL_ADDR ((unsigned char) 32)
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223 /* list of static routes to addresses (addr, router) pairs */
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224 #define TAG_IP_STATIC_ROUTES ((unsigned char) 33)
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225 /* use trailers (rfc893) when using ARP */
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226 #define TAG_IP_TRAILER_ENC ((unsigned char) 34)
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227 /* timeout in seconds for ARP cache entries */
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228 #define TAG_ARP_TIMEOUT ((unsigned char) 35)
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229 /* use either Ethernet version 2 (rfc894) or IEEE 802.3 (rfc1042) */
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230 #define TAG_ETHER_IEEE ((unsigned char) 36)
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231 /* default TCP TTL when sending TCP segments */
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232 #define TAG_IP_TCP_TTL ((unsigned char) 37)
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233 /* time for client to wait before sending a keepalive on a TCP connection */
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234 #define TAG_IP_TCP_KA_INT ((unsigned char) 38)
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235 /* don't send keepalive with an octet of garbage for compatability */
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236 #define TAG_IP_TCP_KA_GARBAGE ((unsigned char) 39)
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237 /* NIS domainname */
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238 #define TAG_NIS_DOMAIN ((unsigned char) 40)
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239 /* list of NIS servers */
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240 #define TAG_NIS_SERVER ((unsigned char) 41)
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241 /* list of NTP servers */
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242 #define TAG_NTP_SERVER ((unsigned char) 42)
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243 /* and stuff vendors may want to add */
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244 #define TAG_VEND_SPECIFIC ((unsigned char) 43)
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245 /* NetBios over TCP/IP name server */
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246 #define TAG_NBNS_SERVER ((unsigned char) 44)
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247 /* NetBios over TCP/IP NBDD servers (rfc1001/1002) */
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248 #define TAG_NBDD_SERVER ((unsigned char) 45)
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249 /* NetBios over TCP/IP node type option for use with above */
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250 #define TAG_NBOTCP_OTPION ((unsigned char) 46)
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251 /* NetBios over TCP/IP scopt option for use with above */
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252 #define TAG_NB_SCOPE ((unsigned char) 47)
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253 /* list of X Window system font servers */
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254 #define TAG_XFONT_SERVER ((unsigned char) 48)
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255 /* list of systems running X Display Manager (xdm) available to this client */
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256 #define TAG_XDISPLAY_SERVER ((unsigned char) 49)
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257
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258 /* While the following are only allowed for DHCP */
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259 /* DHCP requested IP address */
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260 #define TAG_DHCP_REQ_IP ((unsigned char) 50)
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261 /* DHCP time for lease of IP address */
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262 #define TAG_DHCP_LEASE_TIME ((unsigned char) 51)
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263 /* DHCP options overload */
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264 #define TAG_DHCP_OPTOVER ((unsigned char) 52)
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265 /* DHCP message type */
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266 #define TAG_DHCP_MESS_TYPE ((unsigned char) 53)
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267 /* DHCP server identification */
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268 #define TAG_DHCP_SERVER_ID ((unsigned char) 54)
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269 /* DHCP ordered list of requested parameters */
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270 #define TAG_DHCP_PARM_REQ_LIST ((unsigned char) 55)
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271 /* DHCP reply message */
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272 #define TAG_DHCP_TEXT_MESSAGE ((unsigned char) 56)
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273 /* DHCP maximum packet size willing to accept */
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274 #define TAG_DHCP_MAX_MSGSZ ((unsigned char) 57)
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275 /* DHCP time 'til client needs to renew */
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276 #define TAG_DHCP_RENEWAL_TIME ((unsigned char) 58)
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277 /* DHCP time 'til client needs to rebind */
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278 #define TAG_DHCP_REBIND_TIME ((unsigned char) 59)
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279 /* DHCP class identifier */
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280 #define TAG_DHCP_CLASSID ((unsigned char) 60)
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281 /* DHCP client unique identifier */
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282 #define TAG_DHCP_CLIENTID ((unsigned char) 61)
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283
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284 /* XXX - Add new tags here */
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285
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286
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287 /*
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288 * "vendor" data permitted for CMU bootp clients.
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289 */
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290
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291 struct cmu_vend {
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292 char v_magic[4]; /* magic number */
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293 unsigned int v_flags; /* flags/opcodes, etc. */
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294 struct in_addr v_smask; /* Subnet mask */
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295 struct in_addr v_dgate; /* Default gateway */
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296 struct in_addr v_dns1, v_dns2; /* Domain name servers */
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297 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */
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298 struct in_addr v_ts1, v_ts2; /* Time servers */
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299 int v_unused[6]; /* currently unused */
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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 #define IPPORT_BOOTPS 67
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307 #define IPPORT_BOOTPC 68
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308
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309 #endif // _BOOTP_H_