[unix-history] / usr / src / sys / netiso / tp_tpdu.h

/***********************************************************
		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
 */
/* 
 * ARGO TP
 *
 * $Header: tp_tpdu.h,v 4.4 88/07/26 16:45:40 nhall Exp $
 * $Source: /usr/argo/sys/netiso/RCS/tp_tpdu.h,v $
 *	@(#)tp_tpdu.h	7.3 (Berkeley) %G% *
 *
 * This ghastly set of macros makes it possible to
 * refer to tpdu structures without going mad.
 */

#ifndef __TP_TPDU__
#define __TP_TPDU__

#ifndef BYTE_ORDER
/*
 * Definitions for byte order,
 * according to byte significance from low address to high.
 */
#define	LITTLE_ENDIAN	1234	/* least-significant byte first (vax) */
#define	BIG_ENDIAN	4321	/* most-significant byte first (IBM, net) */
#define	PDP_ENDIAN	3412	/* LSB first in word, MSW first in long (pdp) */

#ifdef vax
#define	BYTE_ORDER	LITTLE_ENDIAN
#else
#define	BYTE_ORDER	BIG_ENDIAN	/* mc68000, tahoe, most others */
#endif
#endif 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 __TP_TPDU__
Commit	Line	Data
1c490f1b KS	1	/***********************************************************
	2	Copyright IBM Corporation 1987
	3
	4	All Rights Reserved
	5
	6	Permission to use, copy, modify, and distribute this software and its
	7	documentation for any purpose and without fee is hereby granted,
	8	provided that the above copyright notice appear in all copies and that
	9	both that copyright notice and this permission notice appear in
	10	supporting documentation, and that the name of IBM not be
	11	used in advertising or publicity pertaining to distribution of the
	12	software without specific, written prior permission.
	13
	14	IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
	15	ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
	16	IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
	17	ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	18	WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
	19	ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
	20	SOFTWARE.
	21
	22	******************************************************************/
	23
	24	/*
	25	* ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
	26	*/
	27	/*
	28	* ARGO TP
	29	*
	30	* $Header: tp_tpdu.h,v 4.4 88/07/26 16:45:40 nhall Exp $
	31	* $Source: /usr/argo/sys/netiso/RCS/tp_tpdu.h,v $
44f52ea5	32	* @(#)tp_tpdu.h 7.3 (Berkeley) %G% *
1c490f1b KS	33	*
	34	* This ghastly set of macros makes it possible to
	35	* refer to tpdu structures without going mad.
	36	*/
	37
	38	#ifndef __TP_TPDU__
	39	#define __TP_TPDU__
	40
	41	#ifndef BYTE_ORDER
	42	/*
	43	* Definitions for byte order,
	44	* according to byte significance from low address to high.
	45	*/
	46	#define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */
	47	#define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
	48	#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */
	49
	50	#ifdef vax
	51	#define BYTE_ORDER LITTLE_ENDIAN
	52	#else
	53	#define BYTE_ORDER BIG_ENDIAN /* mc68000, tahoe, most others */
	54	#endif
	55	#endif BYTE_ORDER
	56
	57	/* This much of a tpdu is the same for all types of tpdus (except
	58	* DT tpdus in class 0; their exceptions are handled by the data
	59	* structure below
	60	*/
	61	struct tpdu_fixed {
a50e2bc0	62	u_char _tpduf_li:8, /* length indicator */
1c490f1b KS	63	#if BYTE_ORDER == LITTLE_ENDIAN
1c490f1b KS	64	_tpduf_cdt: 4, /* credit */
a50e2bc0	65	_tpduf_type: 4; /* type of tpdu (DT, CR, etc.) */
1c490f1b KS	66	#endif
	67	#if BYTE_ORDER == BIG_ENDIAN
	68	_tpduf_type: 4, /* type of tpdu (DT, CR, etc.) */
a50e2bc0	69	_tpduf_cdt: 4; /* credit */
1c490f1b	70	#endif
a50e2bc0	71	u_short _tpduf_dref; /* destination ref; not in DT in class 0 */
1c490f1b KS	72	};
	73
	74	#define tpdu_li _tpduf._tpduf_li
	75	#define tpdu_type _tpduf._tpduf_type
	76	#define tpdu_cdt _tpduf._tpduf_cdt
	77	#define tpdu_dref _tpduf._tpduf_dref
	78
	79	struct tp0du {
a50e2bc0 KS	80	u_char _tp0_li,
a50e2bc0 KS	81	_tp0_cdt_type, /* same as in tpdu_fixed */
1c490f1b KS	82	#if BYTE_ORDER == BIG_ENDIAN
	83	_tp0_eot: 1, /* eot */
	84	_tp0_mbz: 7, /* must be zero */
	85	#endif
	86	#if BYTE_ORDER == LITTLE_ENDIAN
	87	_tp0_mbz: 7, /* must be zero */
	88	_tp0_eot: 1, /* eot */
	89	#endif
	90	_tp0_notused: 8; /* data begins on this octet */
	91	};
	92
	93	#define tp0du_eot _tp0_eot
	94	#define tp0du_mbz _tp0_mbz
	95
	96	/*
	97	* This is used when the extended format seqence numbers are
	98	* being sent and received.
	99	*/
	100	/*
	101	* the seqeot field is an int that overlays the seq
	102	* and eot fields, this allows the htonl operation
	103	* to be applied to the entire 32 bit quantity, and
	104	* simplifies the structure definitions.
	105	*/
	106	union seq_type {
	107	struct {
	108	#if BYTE_ORDER == BIG_ENDIAN
	109	unsigned int st_eot:1, /* end-of-tsdu */
	110	st_seq:31; /* 31 bit sequence number */
	111	#endif
	112	#if BYTE_ORDER == LITTLE_ENDIAN
	113	unsigned int st_seq:31, /* 31 bit sequence number */
	114	st_eot:1; /* end-of-tsdu */
	115	#endif
	116	} st;
	117	unsigned int s_seqeot;
	118	#define s_eot st.st_eot
	119	#define s_seq st.st_seq
	120	};
	121
	122	/* Then most tpdu types have a portion that is always present but
	123	* differs among the tpdu types :
	124	*/
	125	union tpdu_fixed_rest {
	126
	127	struct {
a50e2bc0	128	u_short _tpdufr_sref, /* source reference */
1c490f1b KS	129	#if BYTE_ORDER == BIG_ENDIAN
	130	_tpdufr_class: 4, /* class [ ISO 8073 13.3.3.e ] */
	131	_tpdufr_opt: 4, /* options [ ISO 8073 13.3.3.e ] */
	132	#endif
	133	#if BYTE_ORDER == LITTLE_ENDIAN
	134	_tpdufr_opt: 4, /* options [ ISO 8073 13.3.3.e ] */
	135	_tpdufr_class: 4, /* class [ ISO 8073 13.3.3.e ] */
	136	#endif
	137	_tpdufr_xx: 8; /* unused */
	138	} CRCC;
	139
	140	#define tpdu_CRli _tpduf._tpduf_li
	141	#define tpdu_CRtype _tpduf._tpduf_type
	142	#define tpdu_CRcdt _tpduf._tpduf_cdt
	143	#define tpdu_CRdref_0 _tpduf._tpduf_dref
	144	#define tpdu_CRsref _tpdufr.CRCC._tpdufr_sref
	145	#define tpdu_sref _tpdufr.CRCC._tpdufr_sref
	146	#define tpdu_CRclass _tpdufr.CRCC._tpdufr_class
	147	#define tpdu_CRoptions _tpdufr.CRCC._tpdufr_opt
	148
	149	#define tpdu_CCli _tpduf._tpduf_li
	150	#define tpdu_CCtype _tpduf._tpduf_type
	151	#define tpdu_CCcdt _tpduf._tpduf_cdt
	152	#define tpdu_CCdref _tpduf._tpduf_dref
	153	#define tpdu_CCsref _tpdufr.CRCC._tpdufr_sref
	154	#define tpdu_CCclass _tpdufr.CRCC._tpdufr_class
	155	#define tpdu_CCoptions _tpdufr.CRCC._tpdufr_opt
	156
	157	/* OPTIONS and ADDL OPTIONS bits */
	158	#define TPO_USE_EFC 0x1
	159	#define TPO_XTD_FMT 0x2
	160	#define TPAO_USE_TXPD 0x1
	161	#define TPAO_NO_CSUM 0x2
	162	#define TPAO_USE_RCC 0x4
	163	#define TPAO_USE_NXPD 0x8
	164
	165	struct {
	166	unsigned short _tpdufr_sref; /* source reference */
	167	unsigned char _tpdufr_reason; /* [ ISO 8073 13.5.3.d ] */
	168	} DR;
	169	#define tpdu_DRli _tpduf._tpduf_li
	170	#define tpdu_DRtype _tpduf._tpduf_type
	171	#define tpdu_DRdref _tpduf._tpduf_dref
	172	#define tpdu_DRsref _tpdufr.DR._tpdufr_sref
	173	#define tpdu_DRreason _tpdufr.DR._tpdufr_reason
	174
	175	unsigned short _tpdufr_sref; /* source reference */
	176
	177	#define tpdu_DCli _tpduf._tpduf_li
	178	#define tpdu_DCtype _tpduf._tpduf_type
	179	#define tpdu_DCdref _tpduf._tpduf_dref
	180	#define tpdu_DCsref _tpdufr._tpdufr_sref
	181
	182	struct {
	183	#if BYTE_ORDER == BIG_ENDIAN
	184	unsigned char _tpdufr_eot:1, /* end-of-tsdu */
	185	_tpdufr_seq:7; /* 7 bit sequence number */
	186	#endif
	187	#if BYTE_ORDER == LITTLE_ENDIAN
	188	unsigned char _tpdufr_seq:7, /* 7 bit sequence number */
	189	_tpdufr_eot:1; /* end-of-tsdu */
	190	#endif
	191	}SEQEOT;
	192	struct {
193	#if BYTE_ORDER == BIG_ENDIAN
194	unsigned int _tpdufr_Xeot:1, /* end-of-tsdu */
195	_tpdufr_Xseq:31; /* 31 bit sequence number */
196	#endif
197	#if BYTE_ORDER == LITTLE_ENDIAN
198	unsigned int _tpdufr_Xseq:31, /* 31 bit sequence number */
199	_tpdufr_Xeot:1; /* end-of-tsdu */
200	#endif
201	}SEQEOT31;
202	unsigned int _tpdufr_Xseqeot;
203	#define tpdu_seqeotX _tpdufr._tpdufr_Xseqeot
204
205	#define tpdu_DTli _tpduf._tpduf_li
206	#define tpdu_DTtype _tpduf._tpduf_type
207	#define tpdu_DTdref _tpduf._tpduf_dref
208	#define tpdu_DTseq _tpdufr.SEQEOT._tpdufr_seq
209	#define tpdu_DTeot _tpdufr.SEQEOT._tpdufr_eot
210	#define tpdu_DTseqX _tpdufr.SEQEOT31._tpdufr_Xseq
211	#define tpdu_DTeotX _tpdufr.SEQEOT31._tpdufr_Xeot
212
213	#define tpdu_XPDli _tpduf._tpduf_li
214	#define tpdu_XPDtype _tpduf._tpduf_type
215	#define tpdu_XPDdref _tpduf._tpduf_dref
216	#define tpdu_XPDseq _tpdufr.SEQEOT._tpdufr_seq
217	#define tpdu_XPDeot _tpdufr.SEQEOT._tpdufr_eot
218	#define tpdu_XPDseqX _tpdufr.SEQEOT31._tpdufr_Xseq
219	#define tpdu_XPDeotX _tpdufr.SEQEOT31._tpdufr_Xeot
220
221	struct {
222	#if BYTE_ORDER == BIG_ENDIAN
223	unsigned _tpdufr_yrseq0:1, /* always zero */
224	_tpdufr_yrseq:31; /* [ ISO 8073 13.9.3.d ] */
225	#endif
226	#if BYTE_ORDER == LITTLE_ENDIAN
227	unsigned _tpdufr_yrseq:31, /* [ ISO 8073 13.9.3.d ] */
228	_tpdufr_yrseq0:1; /* always zero */
229	#endif
230	unsigned short _tpdufr_cdt; /* [ ISO 8073 13.9.3.b ] */
231	} AK31;
232
233	#define tpdu_AKli _tpduf._tpduf_li
234	#define tpdu_AKtype _tpduf._tpduf_type
235	#define tpdu_AKdref _tpduf._tpduf_dref
236	#define tpdu_AKseq _tpdufr.SEQEOT._tpdufr_seq
237	#define tpdu_AKseqX _tpdufr.AK31._tpdufr_yrseq
238	/* location of cdt depends on size of seq. numbers */
239	#define tpdu_AKcdt _tpduf._tpduf_cdt
240	#define tpdu_AKcdtX _tpdufr.AK31._tpdufr_cdt
241
242	#define tpdu_XAKli _tpduf._tpduf_li
243	#define tpdu_XAKtype _tpduf._tpduf_type
244	#define tpdu_XAKdref _tpduf._tpduf_dref
245	#define tpdu_XAKseq _tpdufr.SEQEOT._tpdufr_seq
246	#define tpdu_XAKseqX _tpdufr.SEQEOT31._tpdufr_Xseq
247
248	unsigned char _tpdu_ERreason; /* [ ISO 8073 13.12.3.c ] */
249
250	#define tpdu_ERli _tpduf._tpduf_li
251	#define tpdu_ERtype _tpduf._tpduf_type
252	#define tpdu_ERdref _tpduf._tpduf_dref
253	#define tpdu_ERreason _tpdufr._tpdu_ERreason
254
255	};
256
257	struct tpdu {
258	struct tpdu_fixed _tpduf;
259	union tpdu_fixed_rest _tpdufr;
260	};
261
262	#endif __TP_TPDU__