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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_param.h,v 5.3 88/11/18 17:28:18 nhall Exp $ | |
31 | * $Source: /usr/argo/sys/netiso/RCS/tp_param.h,v $ | |
32 | * | |
33 | */ | |
34 | ||
35 | #ifndef __TP_PARAM__ | |
36 | #define __TP_PARAM__ | |
37 | ||
38 | ||
39 | /****************************************************** | |
40 | * compile time parameters that can be changed | |
41 | *****************************************************/ | |
42 | ||
43 | #define TP_CLASSES_IMPLEMENTED 0x11 /* zero and 4 */ | |
44 | ||
45 | #define TP_DECBIT_CLEAR_COUNT 3 | |
46 | ||
47 | #define N_TPREF 100 | |
48 | ||
a50e2bc0 KS |
49 | #define TP_SOCKBUFSIZE ((u_long)4096) |
50 | #define TP0_SOCKBUFSIZE ((u_long)512) | |
e8d13846 KS |
51 | #define MAX_TSAP_SEL_LEN 64 |
52 | ||
53 | /* maximum tpdu size we'll accept: */ | |
54 | #define TP_TPDUSIZE 0xc /* 4096 octets for classes 1-4*/ | |
55 | #define TP0_TPDUSIZE 0xb /* 2048 octets for class 0 */ | |
56 | #define TP_DFL_TPDUSIZE 0x7 /* 128 octets default */ | |
57 | /* NOTE: don't ever negotiate 8192 because could get | |
58 | * wraparound in checksumming | |
59 | * (No mtu is likely to be larger than 4K anyway...) | |
60 | */ | |
61 | #define TP_NRETRANS 1 | |
62 | #define TP_MAXPORT 0xefff | |
63 | ||
64 | #define TP_RTT_NUM 0x7 | |
65 | /* ALPHA: to be used in the context: gain= 1/(2**alpha), or | |
66 | * put another way, gaintimes(x) (x)>>alpha (forgetting the case alpha==0) | |
67 | */ | |
68 | #define TP_RTT_ALPHA 3 | |
69 | #define TP_RTV_ALPHA 2 | |
70 | ||
71 | /* | |
72 | * not sure how to treat data on disconnect | |
73 | */ | |
74 | #define T_CONN_DATA 0x1 | |
75 | #define T_DISCONNECT 0x2 | |
76 | #define T_DISC_DATA 0x4 | |
77 | #define T_XDATA 0x8 | |
78 | ||
79 | #define ISO_CLNS 0 | |
80 | #define IN_CLNS 1 | |
81 | #define ISO_CONS 2 | |
82 | #define ISO_COSNS 3 | |
83 | #define TP_MAX_NETSERVICES 3 | |
84 | ||
85 | /* Indices into tp stats ackreason[i] */ | |
86 | #define _ACK_DONT_ 0 | |
87 | #define _ACK_STRAT_EACH_ 0x1 | |
88 | #define _ACK_STRAT_FULLWIN_ 0x2 | |
89 | #define _ACK_DUP_ 0x3 | |
90 | #define _ACK_EOT_ 0x4 | |
91 | #define _ACK_REORDER_ 0x5 | |
92 | #define _ACK_USRRCV_ 0x6 | |
93 | #define _ACK_FCC_ 0x7 | |
94 | #define _ACK_NUM_REASONS_ 0x8 | |
95 | ||
96 | /* masks for use in tp_stash() */ | |
97 | #define ACK_DONT 0 | |
98 | #define ACK_STRAT_EACH (1<< _ACK_STRAT_EACH_) | |
99 | #define ACK_STRAT_FULLWIN (1<< _ACK_STRAT_FULLWIN_) | |
100 | #define ACK_DUP (1<< _ACK_DUP_) | |
101 | #define ACK_EOT (1<< _ACK_EOT_) | |
102 | #define ACK_REORDER (1<< _ACK_REORDER_) | |
103 | ||
104 | /****************************************************** | |
105 | * constants used in the protocol | |
106 | *****************************************************/ | |
107 | ||
108 | #define TP_VERSION 0x1 | |
109 | ||
110 | #define TP_MAX_HEADER_LEN 256 | |
111 | ||
112 | #define TP_MIN_TPDUSIZE 0x7 /* 128 octets */ | |
113 | #define TP_MAX_TPDUSIZE 0xd /* 8192 octets */ | |
114 | ||
115 | #define TP_MAX_XPD_DATA 0x10 /* 16 octets */ | |
116 | #define TP_MAX_CC_DATA 0x20 /* 32 octets */ | |
117 | #define TP_MAX_CR_DATA TP_MAX_CC_DATA | |
118 | #define TP_MAX_DR_DATA 0x40 /* 64 octets */ | |
119 | ||
120 | #define TP_XTD_FMT_BIT 0x80000000 | |
121 | #define TP_XTD_FMT_MASK 0x7fffffff | |
122 | #define TP_NML_FMT_BIT 0x80 | |
123 | #define TP_NML_FMT_MASK 0x7f | |
124 | ||
125 | /* | |
126 | * values for the tpdu_type field, 2nd byte in a tpdu | |
127 | */ | |
128 | ||
129 | #define TP_MIN_TPDUTYPE 0x1 | |
130 | ||
131 | #define XPD_TPDU_type 0x1 | |
132 | #define XAK_TPDU_type 0x2 | |
133 | #define GR_TPDU_type 0x3 | |
134 | #define AK_TPDU_type 0x6 | |
135 | #define ER_TPDU_type 0x7 | |
136 | #define DR_TPDU_type 0x8 | |
137 | #define DC_TPDU_type 0xc | |
138 | #define CC_TPDU_type 0xd | |
139 | #define CR_TPDU_type 0xe | |
140 | #define DT_TPDU_type 0xf | |
141 | ||
142 | #define TP_MAX_TPDUTYPE 0xf | |
143 | ||
144 | /* | |
145 | * identifiers for the variable-length options in tpdus | |
146 | */ | |
147 | ||
148 | #define TPP_acktime 0x85 | |
149 | #define TPP_residER 0x86 | |
150 | #define TPP_priority 0x87 | |
151 | #define TPP_transdelay 0x88 | |
152 | #define TPP_throughput 0x89 | |
153 | #define TPP_subseq 0x8a | |
154 | #define TPP_flow_cntl_conf 0x8c /* not implemented */ | |
155 | #define TPP_addl_info 0xe0 | |
156 | #define TPP_tpdu_size 0xc0 | |
157 | #define TPP_calling_sufx 0xc1 | |
158 | #define TPP_invalid_tpdu 0xc1 /* the bozos used a value twice */ | |
159 | #define TPP_called_sufx 0xc2 | |
160 | #define TPP_checksum 0xc3 | |
161 | #define TPP_vers 0xc4 | |
162 | #define TPP_security 0xc5 | |
163 | #define TPP_addl_opt 0xc6 | |
164 | #define TPP_alt_class 0xc7 | |
165 | #define TPP_perf_meas 0xc8 /* local item : perf meas on, svp */ | |
166 | ||
167 | /****************************************************** | |
168 | * Some fundamental data types | |
169 | *****************************************************/ | |
170 | #ifndef TRUE | |
171 | #define TRUE 1 | |
172 | #endif TRUE | |
173 | ||
174 | #ifndef FALSE | |
175 | #define FALSE 0 | |
176 | #endif FALSE | |
177 | ||
178 | #define TP_LOCAL 22 | |
179 | #define TP_FOREIGN 33 | |
180 | ||
181 | #ifndef EOK | |
182 | #define EOK 0 | |
183 | #endif EOK | |
184 | ||
185 | #define TP_CLASS_0 (1<<0) | |
186 | #define TP_CLASS_1 (1<<1) | |
187 | #define TP_CLASS_2 (1<<2) | |
188 | #define TP_CLASS_3 (1<<3) | |
189 | #define TP_CLASS_4 (1<<4) | |
190 | ||
191 | #define TP_FORCE 0x1 | |
192 | #define TP_STRICT 0x2 | |
193 | ||
194 | #ifndef MNULL | |
195 | #define MNULL (struct mbuf *)0 | |
196 | #endif MNULL | |
197 | /* if ../h/mbuf.h gets MT_types up to 0x40, these will | |
198 | * have to be changed: | |
199 | */ | |
200 | #define MT_XPD 0x44 | |
201 | #define MT_EOT 0x40 | |
202 | ||
203 | #define TP_ENOREF 0x80000000 | |
204 | ||
205 | typedef unsigned int SeqNum; | |
206 | typedef unsigned short RefNum; | |
207 | typedef int ProtoHook; | |
208 | ||
209 | ||
210 | /****************************************************** | |
211 | * Some fundamental constants | |
212 | *****************************************************/ | |
213 | ||
214 | #define TP_MIN_WIN 2048 | |
215 | #define TP_MAX_WIN 16384 | |
216 | #define TP_MAX_WIN_UNPRIV 8192 | |
217 | ||
218 | /****************************************************** | |
219 | * Macro used all over, for driver | |
220 | *****************************************************/ | |
221 | ||
222 | #define DoEvent(x) \ | |
223 | ((E.ev_number=(x)),(tp_driver(tpcb,&E))) | |
224 | ||
225 | /****************************************************** | |
226 | * Some macros used all over, for timestamping | |
227 | *****************************************************/ | |
228 | ||
229 | #define GET_CUR_TIME(tvalp) ((*tvalp) = time) | |
230 | ||
231 | #define GET_TIME_SINCE(oldtvalp, diffp) {\ | |
232 | (diffp)->tv_sec = time.tv_sec - (oldtvalp)->tv_sec;\ | |
233 | (diffp)->tv_usec = time.tv_usec - (oldtvalp)->tv_usec;\ | |
234 | if( (diffp)->tv_usec <0 ) {\ | |
235 | (diffp)->tv_sec --;\ | |
236 | (diffp)->tv_usec = 1000000 - (diffp)->tv_usec;\ | |
237 | }\ | |
238 | } | |
239 | ||
240 | /****************************************************** | |
241 | * Some macros used for address families | |
242 | *****************************************************/ | |
243 | ||
244 | #define satosiso(ADDR) ((struct sockaddr_iso *)(ADDR)) | |
245 | #define satosin(ADDR) ((struct sockaddr_in *)(ADDR)) | |
246 | ||
247 | /****************************************************** | |
248 | * Macro used for changing types of mbufs | |
249 | *****************************************************/ | |
250 | ||
251 | #define CHANGE_MTYPE(m, TYPE)\ | |
252 | if((m)->m_type != TYPE) { \ | |
253 | mbstat.m_mtypes[(m)->m_type]--; mbstat.m_mtypes[TYPE]++; \ | |
254 | (m)->m_type = TYPE; \ | |
255 | } | |
256 | ||
257 | /****************************************************** | |
258 | * Macros used for adding options to a tpdu header and for | |
259 | * parsing the headers. | |
260 | * Options are variable-length and must be bcopy-d because on the | |
261 | * RT your assignments must be N-word aligned for objects of length | |
262 | * N. Such a drag. | |
263 | *****************************************************/ | |
264 | ||
265 | struct tp_vbp { | |
266 | u_char tpv_code; | |
267 | char tpv_len; | |
268 | char tpv_val; | |
269 | }; | |
270 | #define vbptr(x) ((struct tp_vbp *)(x)) | |
271 | #define vbval(x,type) (*((type *)&(((struct tp_vbp *)(x))->tpv_val))) | |
272 | #define vbcode(x) (vbptr(x)->tpv_code) | |
273 | #define vblen(x) (vbptr(x)->tpv_len) | |
274 | ||
275 | #define vb_putval(dst,type,src)\ | |
276 | bcopy((caddr_t)&(src),(caddr_t)&(((struct tp_vbp *)(dst))->tpv_val),\ | |
277 | sizeof(type)) | |
278 | ||
279 | #define vb_getval(src,type,dst)\ | |
280 | bcopy((caddr_t)&(((struct tp_vbp *)(src))->tpv_val),(caddr_t)&(dst),sizeof(type)) | |
281 | ||
282 | #define ADDOPTION(type, DU, len, src)\ | |
283 | { register caddr_t P;\ | |
284 | P = (caddr_t)(DU) + (int)((DU)->tpdu_li);\ | |
285 | vbptr(P)->tpv_code = type;\ | |
286 | vbptr(P)->tpv_len = len;\ | |
a50e2bc0 | 287 | bcopy((caddr_t)&src, (caddr_t)&(vbptr(P)->tpv_val), (unsigned)len);\ |
e8d13846 KS |
288 | DU->tpdu_li += len+2;/* 1 for code, 1 for length */\ |
289 | } | |
290 | /****************************************************** | |
291 | * Macro for the local credit: | |
292 | * uses max transmission unit for the ll | |
293 | * (as modified by the max TPDU size negotiated) | |
294 | *****************************************************/ | |
295 | ||
296 | #if defined(ARGO_DEBUG)&&!defined(LOCAL_CREDIT_EXPAND) | |
297 | #define LOCAL_CREDIT(tpcb) tp_local_credit(tpcb) | |
298 | #else | |
299 | #define LOCAL_CREDIT( tpcb ) {\ | |
300 | register struct sockbuf *xxsb = &((tpcb)->tp_sock->so_rcv);\ | |
301 | register int xxi = ((xxsb)->sb_hiwat-(xxsb)->sb_cc);\ | |
302 | register int maxcredit = ((tpcb)->tp_xtd_format?0xffff:0xf);\ | |
303 | maxcredit = ((tpcb)->tp_decbit?1:maxcredit);\ | |
304 | xxi = (xxi<0) ? 0 : ((xxi)>>(tpcb)->tp_tpdusize);\ | |
305 | (tpcb)->tp_lcredit = MIN( xxi ,maxcredit );\ | |
306 | } | |
307 | #endif ARGO_DEBUG | |
308 | ||
309 | #ifdef KERNEL | |
310 | ||
311 | #ifndef tp_NSTATES | |
312 | ||
313 | #include "tp_states.h" | |
314 | #include "tp_events.h" | |
315 | ||
316 | #endif tp_NSTATES | |
317 | #endif KERNEL | |
318 | ||
319 | #endif __TP_PARAM__ |