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annotate packages/net/tcpip/current/include/netinet/in_pcb.h @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
parents ced4577552cd
children 74dbf4c3f2e1
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1 //==========================================================================
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2 //
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3 // include/netinet/in_pcb.h
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4 //
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5 //
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6 //
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7 //==========================================================================
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8 //####BSDCOPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 //
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12 // Portions of this software may have been derived from OpenBSD or other sources,
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13 // and are covered by the appropriate copyright disclaimers included herein.
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14 //
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15 // -------------------------------------------
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16 //
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17 //####BSDCOPYRIGHTEND####
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18 //==========================================================================
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19 //#####DESCRIPTIONBEGIN####
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20 //
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21 // Author(s): gthomas
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22 // Contributors: gthomas
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23 // Date: 2000-01-10
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24 // Purpose:
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25 // Description:
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26 //
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27 //
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28 //####DESCRIPTIONEND####
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29 //
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30 //==========================================================================
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31
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32
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33 /* $OpenBSD: in_pcb.h,v 1.19 1999/12/12 12:10:43 itojun Exp $ */
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34 /* $NetBSD: in_pcb.h,v 1.14 1996/02/13 23:42:00 christos Exp $ */
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35
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36 /*
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37 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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38 * All rights reserved.
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39 *
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40 * Redistribution and use in source and binary forms, with or without
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41 * modification, are permitted provided that the following conditions
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42 * are met:
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43 * 1. Redistributions of source code must retain the above copyright
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44 * notice, this list of conditions and the following disclaimer.
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45 * 2. Redistributions in binary form must reproduce the above copyright
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46 * notice, this list of conditions and the following disclaimer in the
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47 * documentation and/or other materials provided with the distribution.
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48 * 3. Neither the name of the project nor the names of its contributors
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49 * may be used to endorse or promote products derived from this software
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50 * without specific prior written permission.
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51 *
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52 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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55 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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62 * SUCH DAMAGE.
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63 */
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64
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65 /*
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66 * Copyright (c) 1982, 1986, 1990, 1993
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67 * The Regents of the University of California. All rights reserved.
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68 *
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69 * Redistribution and use in source and binary forms, with or without
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70 * modification, are permitted provided that the following conditions
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71 * are met:
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72 * 1. Redistributions of source code must retain the above copyright
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73 * notice, this list of conditions and the following disclaimer.
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74 * 2. Redistributions in binary form must reproduce the above copyright
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75 * notice, this list of conditions and the following disclaimer in the
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76 * documentation and/or other materials provided with the distribution.
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77 * 3. All advertising materials mentioning features or use of this software
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78 * must display the following acknowledgement:
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79 * This product includes software developed by the University of
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80 * California, Berkeley and its contributors.
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81 * 4. Neither the name of the University nor the names of its contributors
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82 * may be used to endorse or promote products derived from this software
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83 * without specific prior written permission.
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84 *
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85 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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86 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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87 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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88 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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89 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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90 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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91 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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92 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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93 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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94 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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95 * SUCH DAMAGE.
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96 *
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97 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
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98 */
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99
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100 #ifndef _NETINET_IN_PCB_H_
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101 #define _NETINET_IN_PCB_H_
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102
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103 #include <sys/queue.h>
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104 #if 0 /*KAME IPSEC*/
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105 #include <netinet6/ipsec.h>
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106 #endif
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107 #include <netinet6/ip6.h>
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108 #include <netinet6/ip6_var.h>
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109 #include <netinet6/icmp6.h>
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110 #include <netinet/ip_ipsp.h>
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111
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112 union inpaddru {
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113 struct in6_addr iau_addr6;
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114 struct {
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115 uint8_t pad[12];
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116 struct in_addr inaddr; /* easier transition */
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117 } iau_a4u;
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118 };
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119
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120 /*
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121 * Common structure pcb for internet protocol implementation.
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122 * Here are stored pointers to local and foreign host table
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123 * entries, local and foreign socket numbers, and pointers
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124 * up (to a socket structure) and down (to a protocol-specific)
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125 * control block.
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126 */
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127 struct inpcb {
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128 LIST_ENTRY(inpcb) inp_hash;
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129 CIRCLEQ_ENTRY(inpcb) inp_queue;
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130 struct inpcbtable *inp_table;
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131 union inpaddru inp_faddru; /* Foreign address. */
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132 union inpaddru inp_laddru; /* Local address. */
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133 #define inp_faddr inp_faddru.iau_a4u.inaddr
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134 #define inp_faddr6 inp_faddru.iau_addr6
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135 #define inp_laddr inp_laddru.iau_a4u.inaddr
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136 #define inp_laddr6 inp_laddru.iau_addr6
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137 u_int16_t inp_fport; /* foreign port */
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138 u_int16_t inp_lport; /* local port */
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139 struct socket *inp_socket; /* back pointer to socket */
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140 caddr_t inp_ppcb; /* pointer to per-protocol pcb */
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141 union { /* Route (notice increased size). */
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142 struct route ru_route;
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143 struct route_in6 ru_route6;
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144 } inp_ru;
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145 #define inp_route inp_ru.ru_route
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146 #define inp_route6 inp_ru.ru_route6
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147 int inp_flags; /* generic IP/datagram flags */
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148 union { /* Header prototype. */
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149 struct ip hu_ip;
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150 struct ip6_hdr hu_ipv6;
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151 } inp_hu;
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152 #define inp_ip inp_hu.hu_ip
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153 #define inp_ipv6 inp_hu.hu_ipv6
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154 struct mbuf *inp_options; /* IP options */
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155 struct ip6_pktopts *inp_outputopts6; /* IP6 options for outgoing packets */
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156 int inp_hops;
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157 union {
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158 struct ip_moptions *mou_mo; /* IPv4 multicast options */
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159 struct ip6_moptions *mou_mo6; /* IPv6 multicast options */
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160 } inp_mou;
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161 #define inp_moptions inp_mou.mou_mo
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162 #define inp_moptions6 inp_mou.mou_mo6
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163 u_char inp_seclevel[3]; /* Only the first 3 are used for now */
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164 #define SL_AUTH 0 /* Authentication level */
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165 #define SL_ESP_TRANS 1 /* ESP transport level */
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166 #define SL_ESP_NETWORK 2 /* ESP network (encapsulation) level */
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167 u_int8_t inp_secrequire:4, /* Condensed State from above */
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168 inp_secresult:4; /* Result from Key Management */
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169 #define SR_FAILED 1 /* Negotiation failed permanently */
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170 #define SR_SUCCESS 2 /* SA successfully established */
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171 #define SR_WAIT 3 /* Waiting for SA */
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172 TAILQ_ENTRY(inpcb) inp_tdb_next;
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173 struct tdb *inp_tdb; /* If tdb_dst matches our dst, use */
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174 int inp_fflowinfo; /* Foreign flowlabel & priority */
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175 int inp_csumoffset;
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176 struct icmp6_filter *inp_icmp6filt;
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177 #if 0 /*KAME IPSEC*/
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178 struct secpolicy *inp_sp; /* security policy. It may not be
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179 * used according to policy selection.
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180 */
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181 #endif
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182 };
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183
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184 struct inpcbtable {
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185 CIRCLEQ_HEAD(, inpcb) inpt_queue;
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186 LIST_HEAD(inpcbhead, inpcb) *inpt_hashtbl;
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187 u_long inpt_hash;
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188 u_int16_t inpt_lastport;
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189 };
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190
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191 /* flags in inp_flags: */
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192 #define INP_RECVOPTS 0x001 /* receive incoming IP options */
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193 #define INP_RECVRETOPTS 0x002 /* receive IP options for reply */
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194 #define INP_RECVDSTADDR 0x004 /* receive IP dst address */
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195
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196 #define INP_RXDSTOPTS INP_RECVOPTS
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197 #define INP_RXHOPOPTS INP_RECVRETOPTS
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198 #define INP_RXINFO INP_RECVDSTADDR
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199 #define INP_RXSRCRT 0x010
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200 #define INP_HOPLIMIT 0x020
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201
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202 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR| \
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203 INP_RXSRCRT|INP_HOPLIMIT)
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204
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205 #define INP_HDRINCL 0x008 /* user supplies entire IP header */
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206 #define INP_HIGHPORT 0x010 /* user wants "high" port binding */
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207 #define INP_LOWPORT 0x020 /* user wants "low" port binding */
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208
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209 /*
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210 * These flags' values should be determined by either the transport
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211 * protocol at PRU_BIND, PRU_LISTEN, PRU_CONNECT, etc, or by in_pcb*().
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212 */
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213 #define INP_IPV6 0x100 /* sotopf(inp->inp_socket) == PF_INET6 */
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214 #define INP_IPV6_UNDEC 0x200 /* PCB is PF_INET6, but listens for V4/V6 */
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215 #define INP_IPV6_MAPPED 0x400 /* PF_INET6 PCB which is connected to
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216 * an IPv4 host, or is bound to
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217 * an IPv4 address (specified with
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218 * the mapped form of v6 addresses) */
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219 #define INP_IPV6_MCAST 0x800 /* Set if inp_moptions points to ipv6 ones */
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220
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221 #if 1 /*KAME*/
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222 /* flags in in6p_flags */
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223 #define IN6P_RECVOPTS INP_RECVOPTS /* receive incoming IP6 options */
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224 #define IN6P_RECVRETOPTS INP_RECVRETOPTS /* receive IP6 options for reply */
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225 #define IN6P_RECVDSTADDR INP_RECVDSTADDR /* receive IP6 dst address */
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226 #define IN6P_HIGHPORT INP_HIGHPORT /* user wants "high" port binding */
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227 #define IN6P_LOWPORT INP_LOWPORT /* user wants "low" port binding */
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228 #define IN6P_ANONPORT 0x40 /* port chosen for user */
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229 #define IN6P_FAITH 0x80 /* accept FAITH'ed connections */
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230 #define IN6P_PKTINFO 0x010000
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231 #define IN6P_HOPLIMIT 0x020000
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232 #define IN6P_NEXTHOP 0x040000
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233 #define IN6P_HOPOPTS 0x080000
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234 #define IN6P_DSTOPTS 0x100000
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235 #define IN6P_RTHDR 0x200000
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236 #define IN6P_CONTROLOPTS (0x3f0000 | IN6P_RECVOPTS | IN6P_RECVRETOPTS | IN6P_RECVDSTADDR)
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237 #endif
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238
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239 #define INPLOOKUP_WILDCARD 1
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240 #define INPLOOKUP_SETLOCAL 2
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241 #define INPLOOKUP_IPV6 4
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242
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243 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
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244
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245 /* macros for handling bitmap of ports not to allocate dynamically */
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246 #define DP_MAPBITS (sizeof(u_int32_t) * NBBY)
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247 #define DP_MAPSIZE (howmany(IPPORT_RESERVED/2, DP_MAPBITS))
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248 #define DP_SET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] |= (1 << ((p) % DP_MAPBITS)))
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249 #define DP_CLR(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] &= ~(1 << ((p) % DP_MAPBITS)))
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250 #define DP_ISSET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] & (1 << ((p) % DP_MAPBITS)))
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251
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252 /* default values for baddynamicports [see ip_init()] */
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253 #define DEFBADDYNAMICPORTS_TCP { 749, 750, 751, 760, 761, 871, 0 }
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254 #define DEFBADDYNAMICPORTS_UDP { 750, 751, 0 }
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255
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256 struct baddynamicports {
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257 u_int32_t tcp[DP_MAPSIZE];
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258 u_int32_t udp[DP_MAPSIZE];
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259 };
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260
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261 #ifdef _KERNEL
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262
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263 #define sotopf(so) (so->so_proto->pr_domain->dom_family)
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264
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265 void in_losing __P((struct inpcb *));
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266 int in_pcballoc __P((struct socket *, void *));
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267 int in_pcbbind __P((void *, struct mbuf *));
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268 int in_pcbconnect __P((void *, struct mbuf *));
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269 void in_pcbdetach __P((void *));
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270 void in_pcbdisconnect __P((void *));
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271 struct inpcb *
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272 in_pcbhashlookup __P((struct inpcbtable *, struct in_addr,
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273 u_int, struct in_addr, u_int));
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274 #ifdef INET6
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275 struct inpcb *
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276 in6_pcbhashlookup __P((struct inpcbtable *, struct in6_addr *,
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277 u_int, struct in6_addr *, u_int));
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278 int in6_pcbbind __P((struct inpcb *, struct mbuf *));
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279 int in6_pcbconnect __P((struct inpcb *, struct mbuf *));
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280 int in6_setsockaddr __P((struct inpcb *, struct mbuf *));
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281 int in6_setpeeraddr __P((struct inpcb *, struct mbuf *));
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282 #endif /* INET6 */
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283 void in_pcbinit __P((struct inpcbtable *, int));
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284 struct inpcb *
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285 in_pcblookup __P((struct inpcbtable *, void *, u_int, void *,
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286 u_int, int));
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287 void in_pcbnotify __P((struct inpcbtable *, struct sockaddr *,
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288 u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
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289 void in_pcbnotifyall __P((struct inpcbtable *, struct sockaddr *,
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290 int, void (*)(struct inpcb *, int)));
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291 void in_pcbrehash __P((struct inpcb *));
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292 void in_rtchange __P((struct inpcb *, int));
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293 void in_setpeeraddr __P((struct inpcb *, struct mbuf *));
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294 void in_setsockaddr __P((struct inpcb *, struct mbuf *));
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295 int in_baddynamic __P((u_int16_t, u_int16_t));
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296 extern struct sockaddr_in *in_selectsrc __P((struct sockaddr_in *,
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297 struct route *, int, struct ip_moptions *, int *));
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298
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299 /* INET6 stuff */
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300 int in6_pcbnotify __P((struct inpcbtable *, struct sockaddr *,
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301 u_int, struct in6_addr *, u_int, int,
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302 void (*)(struct inpcb *, int)));
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303 struct in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
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304 struct ip6_pktopts *,
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305 struct ip6_moptions *,
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306 struct route_in6 *,
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307 struct in6_addr *, int *));
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308 int in6_selecthlim __P((struct inpcb *, struct ifnet *));
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309 #endif
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310
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311 #endif // _NETINET_IN_PCB_H_