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7bcd1bb8 | 1 | /*- |
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2 | * Copyright (c) 1991, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
7bcd1bb8 | 4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
7bcd1bb8 | 20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | * | |
33 | * @(#)tp_tpdu.h 8.1 (Berkeley) 6/10/93 | |
7bcd1bb8 KB |
34 | */ |
35 | ||
1c490f1b KS |
36 | /*********************************************************** |
37 | Copyright IBM Corporation 1987 | |
38 | ||
39 | All Rights Reserved | |
40 | ||
41 | Permission to use, copy, modify, and distribute this software and its | |
42 | documentation for any purpose and without fee is hereby granted, | |
43 | provided that the above copyright notice appear in all copies and that | |
44 | both that copyright notice and this permission notice appear in | |
45 | supporting documentation, and that the name of IBM not be | |
46 | used in advertising or publicity pertaining to distribution of the | |
47 | software without specific, written prior permission. | |
48 | ||
49 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
50 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
51 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
52 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
53 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
54 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
55 | SOFTWARE. | |
56 | ||
57 | ******************************************************************/ | |
58 | ||
59 | /* | |
60 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison | |
61 | */ | |
62 | /* | |
63 | * ARGO TP | |
64 | * | |
65 | * $Header: tp_tpdu.h,v 4.4 88/07/26 16:45:40 nhall Exp $ | |
66 | * $Source: /usr/argo/sys/netiso/RCS/tp_tpdu.h,v $ | |
67 | * | |
68 | * This ghastly set of macros makes it possible to | |
69 | * refer to tpdu structures without going mad. | |
70 | */ | |
71 | ||
72 | #ifndef __TP_TPDU__ | |
73 | #define __TP_TPDU__ | |
74 | ||
75 | #ifndef BYTE_ORDER | |
76 | /* | |
77 | * Definitions for byte order, | |
78 | * according to byte significance from low address to high. | |
79 | */ | |
80 | #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */ | |
81 | #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ | |
82 | #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */ | |
83 | ||
84 | #ifdef vax | |
85 | #define BYTE_ORDER LITTLE_ENDIAN | |
86 | #else | |
87 | #define BYTE_ORDER BIG_ENDIAN /* mc68000, tahoe, most others */ | |
88 | #endif | |
4d8170e5 | 89 | #endif /* BYTE_ORDER */ |
1c490f1b KS |
90 | |
91 | /* This much of a tpdu is the same for all types of tpdus (except | |
92 | * DT tpdus in class 0; their exceptions are handled by the data | |
93 | * structure below | |
94 | */ | |
95 | struct tpdu_fixed { | |
a50e2bc0 | 96 | u_char _tpduf_li:8, /* length indicator */ |
1c490f1b KS |
97 | #if BYTE_ORDER == LITTLE_ENDIAN |
98 | _tpduf_cdt: 4, /* credit */ | |
a50e2bc0 | 99 | _tpduf_type: 4; /* type of tpdu (DT, CR, etc.) */ |
1c490f1b KS |
100 | #endif |
101 | #if BYTE_ORDER == BIG_ENDIAN | |
102 | _tpduf_type: 4, /* type of tpdu (DT, CR, etc.) */ | |
a50e2bc0 | 103 | _tpduf_cdt: 4; /* credit */ |
1c490f1b | 104 | #endif |
a50e2bc0 | 105 | u_short _tpduf_dref; /* destination ref; not in DT in class 0 */ |
1c490f1b KS |
106 | }; |
107 | ||
108 | #define tpdu_li _tpduf._tpduf_li | |
109 | #define tpdu_type _tpduf._tpduf_type | |
110 | #define tpdu_cdt _tpduf._tpduf_cdt | |
111 | #define tpdu_dref _tpduf._tpduf_dref | |
112 | ||
113 | struct tp0du { | |
a50e2bc0 KS |
114 | u_char _tp0_li, |
115 | _tp0_cdt_type, /* same as in tpdu_fixed */ | |
1c490f1b KS |
116 | #if BYTE_ORDER == BIG_ENDIAN |
117 | _tp0_eot: 1, /* eot */ | |
118 | _tp0_mbz: 7, /* must be zero */ | |
119 | #endif | |
120 | #if BYTE_ORDER == LITTLE_ENDIAN | |
121 | _tp0_mbz: 7, /* must be zero */ | |
122 | _tp0_eot: 1, /* eot */ | |
123 | #endif | |
124 | _tp0_notused: 8; /* data begins on this octet */ | |
125 | }; | |
126 | ||
127 | #define tp0du_eot _tp0_eot | |
128 | #define tp0du_mbz _tp0_mbz | |
129 | ||
130 | /* | |
131 | * This is used when the extended format seqence numbers are | |
132 | * being sent and received. | |
133 | */ | |
134 | /* | |
135 | * the seqeot field is an int that overlays the seq | |
136 | * and eot fields, this allows the htonl operation | |
137 | * to be applied to the entire 32 bit quantity, and | |
138 | * simplifies the structure definitions. | |
139 | */ | |
140 | union seq_type { | |
141 | struct { | |
142 | #if BYTE_ORDER == BIG_ENDIAN | |
143 | unsigned int st_eot:1, /* end-of-tsdu */ | |
144 | st_seq:31; /* 31 bit sequence number */ | |
145 | #endif | |
146 | #if BYTE_ORDER == LITTLE_ENDIAN | |
147 | unsigned int st_seq:31, /* 31 bit sequence number */ | |
148 | st_eot:1; /* end-of-tsdu */ | |
149 | #endif | |
150 | } st; | |
151 | unsigned int s_seqeot; | |
152 | #define s_eot st.st_eot | |
153 | #define s_seq st.st_seq | |
154 | }; | |
155 | ||
156 | /* Then most tpdu types have a portion that is always present but | |
157 | * differs among the tpdu types : | |
158 | */ | |
159 | union tpdu_fixed_rest { | |
160 | ||
161 | struct { | |
a50e2bc0 | 162 | u_short _tpdufr_sref, /* source reference */ |
1c490f1b KS |
163 | #if BYTE_ORDER == BIG_ENDIAN |
164 | _tpdufr_class: 4, /* class [ ISO 8073 13.3.3.e ] */ | |
165 | _tpdufr_opt: 4, /* options [ ISO 8073 13.3.3.e ] */ | |
166 | #endif | |
167 | #if BYTE_ORDER == LITTLE_ENDIAN | |
168 | _tpdufr_opt: 4, /* options [ ISO 8073 13.3.3.e ] */ | |
169 | _tpdufr_class: 4, /* class [ ISO 8073 13.3.3.e ] */ | |
170 | #endif | |
171 | _tpdufr_xx: 8; /* unused */ | |
172 | } CRCC; | |
173 | ||
174 | #define tpdu_CRli _tpduf._tpduf_li | |
175 | #define tpdu_CRtype _tpduf._tpduf_type | |
176 | #define tpdu_CRcdt _tpduf._tpduf_cdt | |
177 | #define tpdu_CRdref_0 _tpduf._tpduf_dref | |
178 | #define tpdu_CRsref _tpdufr.CRCC._tpdufr_sref | |
179 | #define tpdu_sref _tpdufr.CRCC._tpdufr_sref | |
180 | #define tpdu_CRclass _tpdufr.CRCC._tpdufr_class | |
181 | #define tpdu_CRoptions _tpdufr.CRCC._tpdufr_opt | |
182 | ||
183 | #define tpdu_CCli _tpduf._tpduf_li | |
184 | #define tpdu_CCtype _tpduf._tpduf_type | |
185 | #define tpdu_CCcdt _tpduf._tpduf_cdt | |
186 | #define tpdu_CCdref _tpduf._tpduf_dref | |
187 | #define tpdu_CCsref _tpdufr.CRCC._tpdufr_sref | |
188 | #define tpdu_CCclass _tpdufr.CRCC._tpdufr_class | |
189 | #define tpdu_CCoptions _tpdufr.CRCC._tpdufr_opt | |
190 | ||
191 | /* OPTIONS and ADDL OPTIONS bits */ | |
192 | #define TPO_USE_EFC 0x1 | |
193 | #define TPO_XTD_FMT 0x2 | |
194 | #define TPAO_USE_TXPD 0x1 | |
195 | #define TPAO_NO_CSUM 0x2 | |
196 | #define TPAO_USE_RCC 0x4 | |
197 | #define TPAO_USE_NXPD 0x8 | |
198 | ||
199 | struct { | |
200 | unsigned short _tpdufr_sref; /* source reference */ | |
201 | unsigned char _tpdufr_reason; /* [ ISO 8073 13.5.3.d ] */ | |
202 | } DR; | |
203 | #define tpdu_DRli _tpduf._tpduf_li | |
204 | #define tpdu_DRtype _tpduf._tpduf_type | |
205 | #define tpdu_DRdref _tpduf._tpduf_dref | |
206 | #define tpdu_DRsref _tpdufr.DR._tpdufr_sref | |
207 | #define tpdu_DRreason _tpdufr.DR._tpdufr_reason | |
208 | ||
209 | unsigned short _tpdufr_sref; /* source reference */ | |
210 | ||
211 | #define tpdu_DCli _tpduf._tpduf_li | |
212 | #define tpdu_DCtype _tpduf._tpduf_type | |
213 | #define tpdu_DCdref _tpduf._tpduf_dref | |
214 | #define tpdu_DCsref _tpdufr._tpdufr_sref | |
215 | ||
216 | struct { | |
217 | #if BYTE_ORDER == BIG_ENDIAN | |
218 | unsigned char _tpdufr_eot:1, /* end-of-tsdu */ | |
219 | _tpdufr_seq:7; /* 7 bit sequence number */ | |
220 | #endif | |
221 | #if BYTE_ORDER == LITTLE_ENDIAN | |
222 | unsigned char _tpdufr_seq:7, /* 7 bit sequence number */ | |
223 | _tpdufr_eot:1; /* end-of-tsdu */ | |
224 | #endif | |
225 | }SEQEOT; | |
226 | struct { | |
227 | #if BYTE_ORDER == BIG_ENDIAN | |
228 | unsigned int _tpdufr_Xeot:1, /* end-of-tsdu */ | |
229 | _tpdufr_Xseq:31; /* 31 bit sequence number */ | |
230 | #endif | |
231 | #if BYTE_ORDER == LITTLE_ENDIAN | |
232 | unsigned int _tpdufr_Xseq:31, /* 31 bit sequence number */ | |
233 | _tpdufr_Xeot:1; /* end-of-tsdu */ | |
234 | #endif | |
235 | }SEQEOT31; | |
236 | unsigned int _tpdufr_Xseqeot; | |
237 | #define tpdu_seqeotX _tpdufr._tpdufr_Xseqeot | |
238 | ||
239 | #define tpdu_DTli _tpduf._tpduf_li | |
240 | #define tpdu_DTtype _tpduf._tpduf_type | |
241 | #define tpdu_DTdref _tpduf._tpduf_dref | |
242 | #define tpdu_DTseq _tpdufr.SEQEOT._tpdufr_seq | |
243 | #define tpdu_DTeot _tpdufr.SEQEOT._tpdufr_eot | |
244 | #define tpdu_DTseqX _tpdufr.SEQEOT31._tpdufr_Xseq | |
245 | #define tpdu_DTeotX _tpdufr.SEQEOT31._tpdufr_Xeot | |
246 | ||
247 | #define tpdu_XPDli _tpduf._tpduf_li | |
248 | #define tpdu_XPDtype _tpduf._tpduf_type | |
249 | #define tpdu_XPDdref _tpduf._tpduf_dref | |
250 | #define tpdu_XPDseq _tpdufr.SEQEOT._tpdufr_seq | |
251 | #define tpdu_XPDeot _tpdufr.SEQEOT._tpdufr_eot | |
252 | #define tpdu_XPDseqX _tpdufr.SEQEOT31._tpdufr_Xseq | |
253 | #define tpdu_XPDeotX _tpdufr.SEQEOT31._tpdufr_Xeot | |
254 | ||
255 | struct { | |
256 | #if BYTE_ORDER == BIG_ENDIAN | |
257 | unsigned _tpdufr_yrseq0:1, /* always zero */ | |
258 | _tpdufr_yrseq:31; /* [ ISO 8073 13.9.3.d ] */ | |
259 | #endif | |
260 | #if BYTE_ORDER == LITTLE_ENDIAN | |
261 | unsigned _tpdufr_yrseq:31, /* [ ISO 8073 13.9.3.d ] */ | |
262 | _tpdufr_yrseq0:1; /* always zero */ | |
263 | #endif | |
264 | unsigned short _tpdufr_cdt; /* [ ISO 8073 13.9.3.b ] */ | |
265 | } AK31; | |
266 | ||
267 | #define tpdu_AKli _tpduf._tpduf_li | |
268 | #define tpdu_AKtype _tpduf._tpduf_type | |
269 | #define tpdu_AKdref _tpduf._tpduf_dref | |
270 | #define tpdu_AKseq _tpdufr.SEQEOT._tpdufr_seq | |
271 | #define tpdu_AKseqX _tpdufr.AK31._tpdufr_yrseq | |
272 | /* location of cdt depends on size of seq. numbers */ | |
273 | #define tpdu_AKcdt _tpduf._tpduf_cdt | |
274 | #define tpdu_AKcdtX _tpdufr.AK31._tpdufr_cdt | |
275 | ||
276 | #define tpdu_XAKli _tpduf._tpduf_li | |
277 | #define tpdu_XAKtype _tpduf._tpduf_type | |
278 | #define tpdu_XAKdref _tpduf._tpduf_dref | |
279 | #define tpdu_XAKseq _tpdufr.SEQEOT._tpdufr_seq | |
280 | #define tpdu_XAKseqX _tpdufr.SEQEOT31._tpdufr_Xseq | |
281 | ||
282 | unsigned char _tpdu_ERreason; /* [ ISO 8073 13.12.3.c ] */ | |
283 | ||
284 | #define tpdu_ERli _tpduf._tpduf_li | |
285 | #define tpdu_ERtype _tpduf._tpduf_type | |
286 | #define tpdu_ERdref _tpduf._tpduf_dref | |
287 | #define tpdu_ERreason _tpdufr._tpdu_ERreason | |
288 | ||
289 | }; | |
290 | ||
291 | struct tpdu { | |
292 | struct tpdu_fixed _tpduf; | |
293 | union tpdu_fixed_rest _tpdufr; | |
294 | }; | |
295 | ||
4d8170e5 | 296 | #endif /* __TP_TPDU__ */ |