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annotate packages/net/tcpip/current/include/netinet/ip_esp.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/ip_esp.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: ip_esp.h,v 1.26 1999/12/09 00:33:29 angelos Exp $ */
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34
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35 /*
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36 * The authors of this code are John Ioannidis (ji@tla.org),
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37 * Angelos D. Keromytis (kermit@csd.uch.gr) and
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38 * Niels Provos (provos@physnet.uni-hamburg.de).
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39 *
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40 * This code was written by John Ioannidis for BSD/OS in Athens, Greece,
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41 * in November 1995.
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42 *
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43 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
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44 * by Angelos D. Keromytis.
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45 *
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46 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
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47 * and Niels Provos.
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48 *
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49 * Additional features in 1999 by Angelos D. Keromytis.
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50 *
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51 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
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52 * Angelos D. Keromytis and Niels Provos.
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53 *
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54 * Permission to use, copy, and modify this software without fee
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55 * is hereby granted, provided that this entire notice is included in
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56 * all copies of any software which is or includes a copy or
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57 * modification of this software.
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58 * You may use this code under the GNU public license if you so wish. Please
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59 * contribute changes back to the authors under this freer than GPL license
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60 * so that we may further the use of strong encryption without limitations to
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61 * all.
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62 *
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63 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
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64 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
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65 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
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66 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
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67 * PURPOSE.
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68 */
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69
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70 #ifndef _NETINET_IP_ESP_H_
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71 #define _NETINET_IP_ESP_H_
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72
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73 /*
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74 * Encapsulation Security Payload Processing
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75 * Per RFC1827 (Atkinson, 1995)
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76 */
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77
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78 /* Various defines for the "new" ESP */
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79 #define ESP_NEW_ALEN 12 /* 96bits authenticator */
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80
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81 struct esp_old
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82 {
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83 u_int32_t esp_spi; /* Security Parameters Index */
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84 u_int8_t esp_iv[8]; /* iv[4] may actually be data! */
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85 };
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86
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87 #define ESP_OLD_FLENGTH 12
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88 #define ESP_NEW_FLENGTH 16
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89
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90 struct esp_new
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91 {
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92 u_int32_t esp_spi; /* Security Parameter Index */
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93 u_int32_t esp_rpl; /* Sequence Number, Replay Counter */
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94 u_int8_t esp_iv[8]; /* Data may start already at iv[0]! */
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95 };
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96
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97 struct espstat
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98 {
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99 u_int32_t esps_hdrops; /* packet shorter than header shows */
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100 u_int32_t esps_notdb;
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101 u_int32_t esps_badkcr;
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102 u_int32_t esps_qfull;
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103 u_int32_t esps_noxform;
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104 u_int32_t esps_badilen;
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105 u_int32_t esps_wrap; /* Replay counter wrapped around */
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106 u_int32_t esps_badenc; /* Bad encryption detected */
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107 u_int32_t esps_badauth; /* Only valid for transforms with auth */
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108 u_int32_t esps_replay; /* Possible packet replay detected */
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109 u_int32_t esps_input; /* Input ESP packets */
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110 u_int32_t esps_output; /* Output ESP packets */
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111 u_int32_t esps_invalid; /* Trying to use an invalid TDB */
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112 u_int64_t esps_ibytes; /* input bytes */
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113 u_int64_t esps_obytes; /* output bytes */
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114 u_int32_t esps_toobig; /* packet got larger than IP_MAXPACKET */
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115 u_int32_t esps_pdrops; /* packet blocked due to policy */
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116 };
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117
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118 /*
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119 * Names for ESP sysctl objects
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120 */
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121 #define ESPCTL_ENABLE 1 /* Enable ESP processing */
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122 #define ESPCTL_MAXID 2
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123
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124 #define ESPCTL_NAMES { \
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125 { 0, 0 }, \
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126 { "enable", CTLTYPE_INT }, \
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127 }
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128
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129 #ifdef _KERNEL
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130 void esp_input __P((struct mbuf *, ...));
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131 int esp_output __P((struct mbuf *, struct tdb *, struct mbuf **));
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132 int esp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
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133
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134 #ifdef INET6
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135 void esp6_input __P((struct mbuf *, ...));
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136 #endif /* INET6 */
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137
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138 extern int esp_enable;
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139 struct espstat espstat;
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140 #endif /* _Kernel */
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141
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142 #endif // _NETINET_IP_ESP_H_