initial import of NetBSD tree

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diff --git a/sys/netiso/tp_tpdu.h b/sys/netiso/tp_tpdu.h
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+/*	$NetBSD: tp_tpdu.h,v 1.7 1994/07/21 07:10:12 mycroft 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.
+ *
+ *	@(#)tp_tpdu.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
+ */
+/* 
+ * This ghastly set of macros makes it possible to
+ * refer to tpdu structures without going mad.
+ */
+
+#ifndef _NETISO_TP_TPDU_H_
+#define _NETISO_TP_TPDU_H_
+
+#include <machine/endian.h>	/* for BYTE_ORDER */
+
+/* This much of a tpdu is the same for all types of tpdus  (except
+ * DT tpdus in class 0; their exceptions are handled by the data
+ * structure below
+ */
+struct tpdu_fixed {
+	u_char			_tpduf_li:8,		/* length indicator */
+#if BYTE_ORDER == LITTLE_ENDIAN
+				_tpduf_cdt: 4,		/* credit */
+				_tpduf_type: 4;		/* type of tpdu (DT, CR, etc.) */
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+				_tpduf_type: 4,		/* type of tpdu (DT, CR, etc.) */
+				_tpduf_cdt: 4;		/* credit */
+#endif
+	u_short			_tpduf_dref;		/* destination ref; not in DT in class 0 */
+};
+
+#define tpdu_li _tpduf._tpduf_li
+#define tpdu_type _tpduf._tpduf_type
+#define tpdu_cdt _tpduf._tpduf_cdt
+#define tpdu_dref _tpduf._tpduf_dref
+			
+struct tp0du {
+	u_char		_tp0_li,
+				_tp0_cdt_type,		/* same as in tpdu_fixed */
+#if BYTE_ORDER == BIG_ENDIAN
+				_tp0_eot: 1,		/* eot */
+				_tp0_mbz: 7,		/* must be zero */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+				_tp0_mbz: 7,		/* must be zero */
+				_tp0_eot: 1,		/* eot */
+#endif
+				_tp0_notused: 8;	/* data begins on this octet */
+};
+
+#define tp0du_eot _tp0_eot
+#define tp0du_mbz _tp0_mbz
+			
+/*
+ * This is used when the extended format seqence numbers are
+ * being sent and received. 
+ */
+				/*
+				 * the seqeot field is an int that overlays the seq
+				 * and eot fields, this allows the htonl operation
+				 * to be applied to the entire 32 bit quantity, and
+				 * simplifies the structure definitions.
+				 */
+union seq_type {
+	struct {
+#if BYTE_ORDER == BIG_ENDIAN
+		unsigned int	st_eot:1,		/* end-of-tsdu */
+				 		st_seq:31;		/* 31 bit sequence number */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+		unsigned int	st_seq:31,		/* 31 bit sequence number */
+						st_eot:1;		/* end-of-tsdu */
+#endif
+	} st;
+	unsigned int s_seqeot;
+#define s_eot	st.st_eot
+#define s_seq	st.st_seq
+};
+
+/* Then most tpdu types have a portion that is always present but
+ * differs among the tpdu types :
+ */
+union  tpdu_fixed_rest {
+
+		struct {
+			u_short		_tpdufr_sref, 		/* source reference */
+#if BYTE_ORDER == BIG_ENDIAN
+						_tpdufr_class: 4,	/* class [ ISO 8073 13.3.3.e ] */
+						_tpdufr_opt: 4,		/* options [ ISO 8073 13.3.3.e ] */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+						_tpdufr_opt: 4,		/* options [ ISO 8073 13.3.3.e ] */
+						_tpdufr_class: 4,	/* class [ ISO 8073 13.3.3.e ] */
+#endif
+						_tpdufr_xx: 8;		/* unused */
+		} CRCC;
+
+#define tpdu_CRli _tpduf._tpduf_li
+#define tpdu_CRtype _tpduf._tpduf_type
+#define tpdu_CRcdt _tpduf._tpduf_cdt
+#define tpdu_CRdref_0 _tpduf._tpduf_dref
+#define tpdu_CRsref _tpdufr.CRCC._tpdufr_sref
+#define tpdu_sref _tpdufr.CRCC._tpdufr_sref
+#define tpdu_CRclass _tpdufr.CRCC._tpdufr_class
+#define tpdu_CRoptions _tpdufr.CRCC._tpdufr_opt
+
+#define tpdu_CCli _tpduf._tpduf_li
+#define tpdu_CCtype _tpduf._tpduf_type
+#define tpdu_CCcdt _tpduf._tpduf_cdt
+#define tpdu_CCdref _tpduf._tpduf_dref
+#define tpdu_CCsref _tpdufr.CRCC._tpdufr_sref
+#define tpdu_CCclass _tpdufr.CRCC._tpdufr_class
+#define tpdu_CCoptions _tpdufr.CRCC._tpdufr_opt
+
+/* OPTIONS and ADDL OPTIONS bits */
+#define TPO_USE_EFC	 			0x1
+#define TPO_XTD_FMT	 			0x2
+#define TPAO_USE_TXPD 			0x1
+#define TPAO_NO_CSUM 			0x2
+#define TPAO_USE_RCC 			0x4
+#define TPAO_USE_NXPD 			0x8
+
+		struct {
+			unsigned short _tpdufr_sref;	/* source reference */
+			unsigned char  _tpdufr_reason;	/* [ ISO 8073 13.5.3.d ] */
+		} DR;
+#define tpdu_DRli _tpduf._tpduf_li
+#define tpdu_DRtype _tpduf._tpduf_type
+#define tpdu_DRdref _tpduf._tpduf_dref
+#define tpdu_DRsref _tpdufr.DR._tpdufr_sref
+#define tpdu_DRreason _tpdufr.DR._tpdufr_reason
+
+		unsigned short _tpdufr_sref;	/* source reference */
+
+#define tpdu_DCli _tpduf._tpduf_li
+#define tpdu_DCtype _tpduf._tpduf_type
+#define tpdu_DCdref _tpduf._tpduf_dref
+#define tpdu_DCsref _tpdufr._tpdufr_sref
+
+		struct {
+#if BYTE_ORDER == BIG_ENDIAN
+			unsigned char _tpdufr_eot:1,	/* end-of-tsdu */
+						  _tpdufr_seq:7; 	/* 7 bit sequence number */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+			unsigned char	_tpdufr_seq:7, 	/* 7 bit sequence number */
+							_tpdufr_eot:1;	/* end-of-tsdu */
+#endif
+		}SEQEOT;
+		struct {
+#if BYTE_ORDER == BIG_ENDIAN
+			unsigned int	_tpdufr_Xeot:1,		/* end-of-tsdu */
+					 		_tpdufr_Xseq:31;	/* 31 bit sequence number */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+			unsigned int	_tpdufr_Xseq:31,	/* 31 bit sequence number */
+							_tpdufr_Xeot:1;		/* end-of-tsdu */
+#endif
+		}SEQEOT31;
+		unsigned int _tpdufr_Xseqeot;
+#define tpdu_seqeotX _tpdufr._tpdufr_Xseqeot
+
+#define tpdu_DTli _tpduf._tpduf_li
+#define tpdu_DTtype _tpduf._tpduf_type
+#define tpdu_DTdref _tpduf._tpduf_dref
+#define tpdu_DTseq _tpdufr.SEQEOT._tpdufr_seq
+#define tpdu_DTeot _tpdufr.SEQEOT._tpdufr_eot
+#define tpdu_DTseqX _tpdufr.SEQEOT31._tpdufr_Xseq
+#define tpdu_DTeotX _tpdufr.SEQEOT31._tpdufr_Xeot
+
+#define tpdu_XPDli _tpduf._tpduf_li
+#define tpdu_XPDtype _tpduf._tpduf_type
+#define tpdu_XPDdref _tpduf._tpduf_dref
+#define tpdu_XPDseq _tpdufr.SEQEOT._tpdufr_seq
+#define tpdu_XPDeot _tpdufr.SEQEOT._tpdufr_eot
+#define tpdu_XPDseqX _tpdufr.SEQEOT31._tpdufr_Xseq
+#define tpdu_XPDeotX _tpdufr.SEQEOT31._tpdufr_Xeot
+
+		struct {
+#if BYTE_ORDER == BIG_ENDIAN
+			unsigned	_tpdufr_yrseq0:1,	/* always zero */
+						_tpdufr_yrseq:31; 	/* [ ISO 8073 13.9.3.d ] */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+			unsigned	_tpdufr_yrseq:31, 	/* [ ISO 8073 13.9.3.d ] */
+						_tpdufr_yrseq0:1;	/* always zero */
+#endif
+			unsigned short _tpdufr_cdt; /* [ ISO 8073 13.9.3.b ] */
+		} AK31;
+
+#define tpdu_AKli _tpduf._tpduf_li
+#define tpdu_AKtype _tpduf._tpduf_type
+#define tpdu_AKdref _tpduf._tpduf_dref
+#define tpdu_AKseq _tpdufr.SEQEOT._tpdufr_seq
+#define tpdu_AKseqX _tpdufr.AK31._tpdufr_yrseq
+/* location of cdt depends on size of seq. numbers */
+#define tpdu_AKcdt _tpduf._tpduf_cdt
+#define tpdu_AKcdtX _tpdufr.AK31._tpdufr_cdt
+
+#define tpdu_XAKli _tpduf._tpduf_li
+#define tpdu_XAKtype _tpduf._tpduf_type
+#define tpdu_XAKdref _tpduf._tpduf_dref
+#define tpdu_XAKseq _tpdufr.SEQEOT._tpdufr_seq
+#define tpdu_XAKseqX _tpdufr.SEQEOT31._tpdufr_Xseq
+
+		unsigned char _tpdu_ERreason;  	/* [ ISO 8073 13.12.3.c ] */
+
+#define tpdu_ERli _tpduf._tpduf_li
+#define tpdu_ERtype _tpduf._tpduf_type
+#define tpdu_ERdref _tpduf._tpduf_dref
+#define tpdu_ERreason _tpdufr._tpdu_ERreason
+
+};
+
+struct tpdu {
+	struct	tpdu_fixed 		_tpduf;
+	union 	tpdu_fixed_rest _tpdufr;
+};
+
+#endif /* _NETISO_TP_TPDU_H_ */