1 /* $NetBSD: esis.h,v 1.11 1997/11/03 15:01:19 is Exp $ */
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4 * Copyright (c) 1991, 1993
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5 * The Regents of the University of California. All rights reserved.
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7 * Redistribution and use in source and binary forms, with or without
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8 * modification, are permitted provided that the following conditions
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10 * 1. Redistributions of source code must retain the above copyright
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11 * notice, this list of conditions and the following disclaimer.
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 * 3. All advertising materials mentioning features or use of this software
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16 * must display the following acknowledgement:
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17 * This product includes software developed by the University of
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18 * California, Berkeley and its contributors.
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19 * 4. Neither the name of the University nor the names of its contributors
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20 * may be used to endorse or promote products derived from this software
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21 * without specific prior written permission.
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23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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35 * @(#)esis.h 8.1 (Berkeley) 6/10/93
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38 /***********************************************************
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39 Copyright IBM Corporation 1987
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43 Permission to use, copy, modify, and distribute this software and its
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44 documentation for any purpose and without fee is hereby granted,
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45 provided that the above copyright notice appear in all copies and that
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46 both that copyright notice and this permission notice appear in
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47 supporting documentation, and that the name of IBM not be
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48 used in advertising or publicity pertaining to distribution of the
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49 software without specific, written prior permission.
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51 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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52 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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53 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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54 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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55 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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56 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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59 ******************************************************************/
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62 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
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65 #include <machine/endian.h>
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67 #define SNPAC_AGE 60 /* seconds */
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68 #define ESIS_CONFIG 60 /* seconds */
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69 #define ESIS_HT (ESIS_CONFIG * 2)
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72 * Fixed part of an ESIS header
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75 u_char esis_proto_id; /* network layer protocol identifier */
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76 u_char esis_hdr_len; /* length indicator (octets) */
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77 u_char esis_vers; /* version/protocol identifier
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79 u_char esis_res1; /* reserved */
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80 u_char esis_type; /* type code */
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81 /* technically, type should be &='d 0x1f */
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82 #define ESIS_ESH 0x02 /* End System Hello */
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83 #define ESIS_ISH 0x04 /* Intermediate System Hello */
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84 #define ESIS_RD 0x06 /* Redirect */
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85 u_char esis_ht_msb; /* holding time (seconds) high byte */
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86 u_char esis_ht_lsb; /* holding time (seconds) low byte */
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87 u_char esis_cksum_msb; /* checksum high byte */
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88 u_char esis_cksum_lsb; /* checksum low byte */
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89 } __attribute__((packed));
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91 * Values for ESIS datagram options
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93 #define ESISOVAL_NETMASK 0xe1 /* address mask option, RD PDU only */
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94 #define ESISOVAL_SNPAMASK 0xe2 /* snpa mask option, RD PDU only */
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95 #define ESISOVAL_ESCT 0xc6 /* end system conf. timer, ISH PDU
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99 #define ESIS_CKSUM_OFF 0x07
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100 #define ESIS_CKSUM_REQUIRED(pdu)\
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101 ((pdu->esis_cksum_msb != 0) || (pdu->esis_cksum_lsb != 0))
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103 #define ESIS_VERSION 1
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106 u_short es_nomem; /* insufficient memory to send hello */
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107 u_short es_badcsum; /* incorrect checksum */
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108 u_short es_badvers; /* incorrect version number */
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109 u_short es_badtype; /* unknown pdu type field */
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110 u_short es_toosmall; /* packet too small */
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111 u_short es_eshsent; /* ESH sent */
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112 u_short es_eshrcvd; /* ESH rcvd */
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113 u_short es_ishsent; /* ISH sent */
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114 u_short es_ishrcvd; /* ISH rcvd */
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115 u_short es_rdsent; /* RD sent */
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116 u_short es_rdrcvd; /* RD rcvd */
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120 struct esis_stat esis_stat;
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124 struct clnp_optidx;
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127 struct sockaddr_dl;
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129 void esis_init __P((void));
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130 int esis_usrreq __P((struct socket *, int, struct mbuf *, struct mbuf *,
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131 struct mbuf *, struct proc *));
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132 void esis_input __P((struct mbuf *, ...));
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133 void esis_rdoutput __P((struct snpa_hdr *, struct mbuf *, struct clnp_optidx *,
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134 struct iso_addr *, struct rtentry *));
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135 int esis_insert_addr __P((caddr_t *, int *, struct iso_addr *, struct mbuf *,
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137 void esis_eshinput __P((struct mbuf *, struct snpa_hdr *));
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138 void esis_ishinput __P((struct mbuf *, struct snpa_hdr *));
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139 void esis_rdinput __P((struct mbuf *, struct snpa_hdr *));
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140 void esis_config __P((void *));
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141 void esis_shoutput __P((struct ifnet *, int, int, caddr_t, int,
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142 struct iso_addr *));
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143 void isis_input __P((struct mbuf *, ...));
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144 int isis_output __P((struct mbuf *, ...));
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145 void *esis_ctlinput __P((int, struct sockaddr *, void *));
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146 #endif /* _KERNEL */
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