fd26a0bfcb
since today, they will have the same size as the on-the-wire-packet on each architecture. Problem was reported by George Harvey for the m68k architecture.
147 lines
5.9 KiB
C
147 lines
5.9 KiB
C
/* $NetBSD: esis.h,v 1.11 1997/11/03 15:01:19 is Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1991, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)esis.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
/***********************************************************
|
|
Copyright IBM Corporation 1987
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the name of IBM not be
|
|
used in advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
|
|
IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
|
|
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
|
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
|
|
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
SOFTWARE.
|
|
|
|
******************************************************************/
|
|
|
|
/*
|
|
* ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
|
|
*/
|
|
|
|
#include <machine/endian.h>
|
|
|
|
#define SNPAC_AGE 60 /* seconds */
|
|
#define ESIS_CONFIG 60 /* seconds */
|
|
#define ESIS_HT (ESIS_CONFIG * 2)
|
|
|
|
/*
|
|
* Fixed part of an ESIS header
|
|
*/
|
|
struct esis_fixed {
|
|
u_char esis_proto_id; /* network layer protocol identifier */
|
|
u_char esis_hdr_len; /* length indicator (octets) */
|
|
u_char esis_vers; /* version/protocol identifier
|
|
* extension */
|
|
u_char esis_res1; /* reserved */
|
|
u_char esis_type; /* type code */
|
|
/* technically, type should be &='d 0x1f */
|
|
#define ESIS_ESH 0x02 /* End System Hello */
|
|
#define ESIS_ISH 0x04 /* Intermediate System Hello */
|
|
#define ESIS_RD 0x06 /* Redirect */
|
|
u_char esis_ht_msb; /* holding time (seconds) high byte */
|
|
u_char esis_ht_lsb; /* holding time (seconds) low byte */
|
|
u_char esis_cksum_msb; /* checksum high byte */
|
|
u_char esis_cksum_lsb; /* checksum low byte */
|
|
} __attribute__((packed));
|
|
/*
|
|
* Values for ESIS datagram options
|
|
*/
|
|
#define ESISOVAL_NETMASK 0xe1 /* address mask option, RD PDU only */
|
|
#define ESISOVAL_SNPAMASK 0xe2 /* snpa mask option, RD PDU only */
|
|
#define ESISOVAL_ESCT 0xc6 /* end system conf. timer, ISH PDU
|
|
* only */
|
|
|
|
|
|
#define ESIS_CKSUM_OFF 0x07
|
|
#define ESIS_CKSUM_REQUIRED(pdu)\
|
|
((pdu->esis_cksum_msb != 0) || (pdu->esis_cksum_lsb != 0))
|
|
|
|
#define ESIS_VERSION 1
|
|
|
|
struct esis_stat {
|
|
u_short es_nomem; /* insufficient memory to send hello */
|
|
u_short es_badcsum; /* incorrect checksum */
|
|
u_short es_badvers; /* incorrect version number */
|
|
u_short es_badtype; /* unknown pdu type field */
|
|
u_short es_toosmall; /* packet too small */
|
|
u_short es_eshsent; /* ESH sent */
|
|
u_short es_eshrcvd; /* ESH rcvd */
|
|
u_short es_ishsent; /* ISH sent */
|
|
u_short es_ishrcvd; /* ISH rcvd */
|
|
u_short es_rdsent; /* RD sent */
|
|
u_short es_rdrcvd; /* RD rcvd */
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
struct esis_stat esis_stat;
|
|
struct socket;
|
|
struct mbuf;
|
|
struct snpa_hdr;
|
|
struct clnp_optidx;
|
|
struct iso_addr;
|
|
struct rtentry;
|
|
struct sockaddr_dl;
|
|
|
|
void esis_init __P((void));
|
|
int esis_usrreq __P((struct socket *, int, struct mbuf *, struct mbuf *,
|
|
struct mbuf *, struct proc *));
|
|
void esis_input __P((struct mbuf *, ...));
|
|
void esis_rdoutput __P((struct snpa_hdr *, struct mbuf *, struct clnp_optidx *,
|
|
struct iso_addr *, struct rtentry *));
|
|
int esis_insert_addr __P((caddr_t *, int *, struct iso_addr *, struct mbuf *,
|
|
int));
|
|
void esis_eshinput __P((struct mbuf *, struct snpa_hdr *));
|
|
void esis_ishinput __P((struct mbuf *, struct snpa_hdr *));
|
|
void esis_rdinput __P((struct mbuf *, struct snpa_hdr *));
|
|
void esis_config __P((void *));
|
|
void esis_shoutput __P((struct ifnet *, int, int, caddr_t, int,
|
|
struct iso_addr *));
|
|
void isis_input __P((struct mbuf *, ...));
|
|
int isis_output __P((struct mbuf *, ...));
|
|
void *esis_ctlinput __P((int, struct sockaddr *, void *));
|
|
#endif /* _KERNEL */
|