| 1 | /*- |
| 2 | * Copyright (c) 1991 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * %sccs.include.redist.c% |
| 6 | * |
| 7 | * @(#)tp_param.h 7.11 (Berkeley) %G% |
| 8 | */ |
| 9 | |
| 10 | /*********************************************************** |
| 11 | Copyright IBM Corporation 1987 |
| 12 | |
| 13 | All Rights Reserved |
| 14 | |
| 15 | Permission to use, copy, modify, and distribute this software and its |
| 16 | documentation for any purpose and without fee is hereby granted, |
| 17 | provided that the above copyright notice appear in all copies and that |
| 18 | both that copyright notice and this permission notice appear in |
| 19 | supporting documentation, and that the name of IBM not be |
| 20 | used in advertising or publicity pertaining to distribution of the |
| 21 | software without specific, written prior permission. |
| 22 | |
| 23 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 24 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 25 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 26 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 27 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 28 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 29 | SOFTWARE. |
| 30 | |
| 31 | ******************************************************************/ |
| 32 | |
| 33 | /* |
| 34 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison |
| 35 | */ |
| 36 | /* |
| 37 | * ARGO TP |
| 38 | * |
| 39 | * $Header: tp_param.h,v 5.3 88/11/18 17:28:18 nhall Exp $ |
| 40 | * $Source: /usr/argo/sys/netiso/RCS/tp_param.h,v $ |
| 41 | * |
| 42 | */ |
| 43 | |
| 44 | #ifndef __TP_PARAM__ |
| 45 | #define __TP_PARAM__ |
| 46 | |
| 47 | |
| 48 | /****************************************************** |
| 49 | * compile time parameters that can be changed |
| 50 | *****************************************************/ |
| 51 | |
| 52 | #define TP_CLASSES_IMPLEMENTED 0x11 /* zero and 4 */ |
| 53 | |
| 54 | #define TP_DECBIT_CLEAR_COUNT 3 |
| 55 | |
| 56 | /*#define N_TPREF 100 */ |
| 57 | #ifdef KERNEL |
| 58 | extern int N_TPREF; |
| 59 | #endif |
| 60 | |
| 61 | #define TP_SOCKBUFSIZE ((u_long)4096) |
| 62 | #define TP0_SOCKBUFSIZE ((u_long)512) |
| 63 | #define MAX_TSAP_SEL_LEN 64 |
| 64 | |
| 65 | /* maximum tpdu size we'll accept: */ |
| 66 | #define TP_TPDUSIZE 0xc /* 4096 octets for classes 1-4*/ |
| 67 | #define TP0_TPDUSIZE 0xb /* 2048 octets for class 0 */ |
| 68 | #define TP_DFL_TPDUSIZE 0x7 /* 128 octets default */ |
| 69 | /* NOTE: don't ever negotiate 8192 because could get |
| 70 | * wraparound in checksumming |
| 71 | * (No mtu is likely to be larger than 4K anyway...) |
| 72 | */ |
| 73 | #define TP_NRETRANS 12 /* TCP_MAXRXTSHIFT + 1 */ |
| 74 | #define TP_MAXRXTSHIFT 6 /* factor of 64 */ |
| 75 | #define TP_MAXPORT 0xefff |
| 76 | |
| 77 | /* ALPHA: to be used in the context: gain= 1/(2**alpha), or |
| 78 | * put another way, gaintimes(x) (x)>>alpha (forgetting the case alpha==0) |
| 79 | */ |
| 80 | #define TP_RTT_ALPHA 3 |
| 81 | #define TP_RTV_ALPHA 2 |
| 82 | #define TP_REXMTVAL(tpcb)\ |
| 83 | ((tp_rttadd + (tpcb)->tp_rtt + ((tpcb)->tp_rtv) << 2) / tp_rttdiv) |
| 84 | #define TP_RANGESET(tv, value, min, max) \ |
| 85 | ((tv = value) > (max) ? (tv = max) : (tv < min ? tv = min : tv)) |
| 86 | |
| 87 | /* |
| 88 | * not sure how to treat data on disconnect |
| 89 | */ |
| 90 | #define T_CONN_DATA 0x1 |
| 91 | #define T_DISCONNECT 0x2 |
| 92 | #define T_DISC_DATA 0x4 |
| 93 | #define T_XDATA 0x8 |
| 94 | |
| 95 | #define ISO_CLNS 0 |
| 96 | #define IN_CLNS 1 |
| 97 | #define ISO_CONS 2 |
| 98 | #define ISO_COSNS 3 |
| 99 | #define TP_MAX_NETSERVICES 3 |
| 100 | |
| 101 | /* Indices into tp stats ackreason[i] */ |
| 102 | #define _ACK_DONT_ 0 |
| 103 | #define _ACK_STRAT_EACH_ 0x1 |
| 104 | #define _ACK_STRAT_FULLWIN_ 0x2 |
| 105 | #define _ACK_DUP_ 0x3 |
| 106 | #define _ACK_EOT_ 0x4 |
| 107 | #define _ACK_REORDER_ 0x5 |
| 108 | #define _ACK_USRRCV_ 0x6 |
| 109 | #define _ACK_FCC_ 0x7 |
| 110 | #define _ACK_NUM_REASONS_ 0x8 |
| 111 | |
| 112 | /* masks for use in tp_stash() */ |
| 113 | #define ACK_DONT 0 |
| 114 | #define ACK_STRAT_EACH (1<< _ACK_STRAT_EACH_) |
| 115 | #define ACK_STRAT_FULLWIN (1<< _ACK_STRAT_FULLWIN_) |
| 116 | #define ACK_DUP (1<< _ACK_DUP_) |
| 117 | #define ACK_EOT (1<< _ACK_EOT_) |
| 118 | #define ACK_REORDER (1<< _ACK_REORDER_) |
| 119 | |
| 120 | /****************************************************** |
| 121 | * constants used in the protocol |
| 122 | *****************************************************/ |
| 123 | |
| 124 | #define TP_VERSION 0x1 |
| 125 | |
| 126 | #define TP_MAX_HEADER_LEN 256 |
| 127 | |
| 128 | #define TP_MIN_TPDUSIZE 0x7 /* 128 octets */ |
| 129 | #define TP_MAX_TPDUSIZE 0xd /* 8192 octets */ |
| 130 | |
| 131 | #define TP_MAX_XPD_DATA 0x10 /* 16 octets */ |
| 132 | #define TP_MAX_CC_DATA 0x20 /* 32 octets */ |
| 133 | #define TP_MAX_CR_DATA TP_MAX_CC_DATA |
| 134 | #define TP_MAX_DR_DATA 0x40 /* 64 octets */ |
| 135 | |
| 136 | #define TP_XTD_FMT_BIT 0x80000000 |
| 137 | #define TP_XTD_FMT_MASK 0x7fffffff |
| 138 | #define TP_NML_FMT_BIT 0x80 |
| 139 | #define TP_NML_FMT_MASK 0x7f |
| 140 | |
| 141 | /* |
| 142 | * values for the tpdu_type field, 2nd byte in a tpdu |
| 143 | */ |
| 144 | |
| 145 | #define TP_MIN_TPDUTYPE 0x1 |
| 146 | |
| 147 | #define XPD_TPDU_type 0x1 |
| 148 | #define XAK_TPDU_type 0x2 |
| 149 | #define GR_TPDU_type 0x3 |
| 150 | #define AK_TPDU_type 0x6 |
| 151 | #define ER_TPDU_type 0x7 |
| 152 | #define DR_TPDU_type 0x8 |
| 153 | #define DC_TPDU_type 0xc |
| 154 | #define CC_TPDU_type 0xd |
| 155 | #define CR_TPDU_type 0xe |
| 156 | #define DT_TPDU_type 0xf |
| 157 | |
| 158 | #define TP_MAX_TPDUTYPE 0xf |
| 159 | |
| 160 | /* |
| 161 | * identifiers for the variable-length options in tpdus |
| 162 | */ |
| 163 | |
| 164 | #define TPP_acktime 0x85 |
| 165 | #define TPP_residER 0x86 |
| 166 | #define TPP_priority 0x87 |
| 167 | #define TPP_transdelay 0x88 |
| 168 | #define TPP_throughput 0x89 |
| 169 | #define TPP_subseq 0x8a |
| 170 | #define TPP_flow_cntl_conf 0x8c /* not implemented */ |
| 171 | #define TPP_addl_info 0xe0 |
| 172 | #define TPP_tpdu_size 0xc0 |
| 173 | #define TPP_calling_sufx 0xc1 |
| 174 | #define TPP_invalid_tpdu 0xc1 /* the bozos used a value twice */ |
| 175 | #define TPP_called_sufx 0xc2 |
| 176 | #define TPP_checksum 0xc3 |
| 177 | #define TPP_vers 0xc4 |
| 178 | #define TPP_security 0xc5 |
| 179 | #define TPP_addl_opt 0xc6 |
| 180 | #define TPP_alt_class 0xc7 |
| 181 | #define TPP_perf_meas 0xc8 /* local item : perf meas on, svp */ |
| 182 | #define TPP_ptpdu_size 0xf0 /* preferred TPDU size */ |
| 183 | #define TPP_inact_time 0xf2 /* inactivity time exchanged */ |
| 184 | |
| 185 | |
| 186 | /****************************************************** |
| 187 | * Some fundamental data types |
| 188 | *****************************************************/ |
| 189 | #ifndef TRUE |
| 190 | #define TRUE 1 |
| 191 | #endif TRUE |
| 192 | |
| 193 | #ifndef FALSE |
| 194 | #define FALSE 0 |
| 195 | #endif FALSE |
| 196 | |
| 197 | #define TP_LOCAL 22 |
| 198 | #define TP_FOREIGN 33 |
| 199 | |
| 200 | #ifndef EOK |
| 201 | #define EOK 0 |
| 202 | #endif EOK |
| 203 | |
| 204 | #define TP_CLASS_0 (1<<0) |
| 205 | #define TP_CLASS_1 (1<<1) |
| 206 | #define TP_CLASS_2 (1<<2) |
| 207 | #define TP_CLASS_3 (1<<3) |
| 208 | #define TP_CLASS_4 (1<<4) |
| 209 | |
| 210 | #define TP_FORCE 0x1 |
| 211 | #define TP_STRICT 0x2 |
| 212 | |
| 213 | #ifndef MNULL |
| 214 | #define MNULL (struct mbuf *)0 |
| 215 | #endif MNULL |
| 216 | /* if ../sys/mbuf.h gets MT_types up to 0x40, these will |
| 217 | * have to be changed: |
| 218 | */ |
| 219 | #define MT_XPD 0x44 |
| 220 | #define MT_EOT 0x40 |
| 221 | |
| 222 | #define TP_ENOREF 0x80000000 |
| 223 | |
| 224 | typedef unsigned int SeqNum; |
| 225 | typedef unsigned short RefNum; |
| 226 | typedef int ProtoHook; |
| 227 | |
| 228 | /****************************************************** |
| 229 | * Macro used all over, for driver |
| 230 | *****************************************************/ |
| 231 | |
| 232 | #define DoEvent(x) \ |
| 233 | ((E.ev_number=(x)),(tp_driver(tpcb,&E))) |
| 234 | |
| 235 | /****************************************************** |
| 236 | * Some macros used all over, for timestamping |
| 237 | *****************************************************/ |
| 238 | |
| 239 | #define GET_CUR_TIME(tvalp) ((*tvalp) = time) |
| 240 | |
| 241 | #define GET_TIME_SINCE(oldtvalp, diffp) {\ |
| 242 | (diffp)->tv_sec = time.tv_sec - (oldtvalp)->tv_sec;\ |
| 243 | (diffp)->tv_usec = time.tv_usec - (oldtvalp)->tv_usec;\ |
| 244 | if( (diffp)->tv_usec <0 ) {\ |
| 245 | (diffp)->tv_sec --;\ |
| 246 | (diffp)->tv_usec = 1000000 - (diffp)->tv_usec;\ |
| 247 | }\ |
| 248 | } |
| 249 | |
| 250 | /****************************************************** |
| 251 | * Some macros used for address families |
| 252 | *****************************************************/ |
| 253 | |
| 254 | #define satosiso(ADDR) ((struct sockaddr_iso *)(ADDR)) |
| 255 | #define satosin(ADDR) ((struct sockaddr_in *)(ADDR)) |
| 256 | |
| 257 | /****************************************************** |
| 258 | * Macro used for changing types of mbufs |
| 259 | *****************************************************/ |
| 260 | |
| 261 | #define CHANGE_MTYPE(m, TYPE)\ |
| 262 | if((m)->m_type != TYPE) { \ |
| 263 | mbstat.m_mtypes[(m)->m_type]--; mbstat.m_mtypes[TYPE]++; \ |
| 264 | (m)->m_type = TYPE; \ |
| 265 | } |
| 266 | |
| 267 | /****************************************************** |
| 268 | * Macros used for adding options to a tpdu header and for |
| 269 | * parsing the headers. |
| 270 | * Options are variable-length and must be bcopy-d because on the |
| 271 | * RT your assignments must be N-word aligned for objects of length |
| 272 | * N. Such a drag. |
| 273 | *****************************************************/ |
| 274 | |
| 275 | struct tp_vbp { |
| 276 | u_char tpv_code; |
| 277 | char tpv_len; |
| 278 | char tpv_val; |
| 279 | }; |
| 280 | #define vbptr(x) ((struct tp_vbp *)(x)) |
| 281 | #define vbval(x,type) (*((type *)&(((struct tp_vbp *)(x))->tpv_val))) |
| 282 | #define vbcode(x) (vbptr(x)->tpv_code) |
| 283 | #define vblen(x) (vbptr(x)->tpv_len) |
| 284 | |
| 285 | #define vb_putval(dst,type,src)\ |
| 286 | bcopy((caddr_t)&(src),(caddr_t)&(((struct tp_vbp *)(dst))->tpv_val),\ |
| 287 | sizeof(type)) |
| 288 | |
| 289 | #define vb_getval(src,type,dst)\ |
| 290 | bcopy((caddr_t)&(((struct tp_vbp *)(src))->tpv_val),(caddr_t)&(dst),sizeof(type)) |
| 291 | |
| 292 | #define ADDOPTION(type, DU, len, src)\ |
| 293 | { register caddr_t P;\ |
| 294 | P = (caddr_t)(DU) + (int)((DU)->tpdu_li);\ |
| 295 | vbptr(P)->tpv_code = type;\ |
| 296 | vbptr(P)->tpv_len = len;\ |
| 297 | bcopy((caddr_t)&src, (caddr_t)&(vbptr(P)->tpv_val), (unsigned)len);\ |
| 298 | DU->tpdu_li += len+2;/* 1 for code, 1 for length */\ |
| 299 | } |
| 300 | /****************************************************** |
| 301 | * Macro for the local credit: |
| 302 | * uses max transmission unit for the ll |
| 303 | * (as modified by the max TPDU size negotiated) |
| 304 | *****************************************************/ |
| 305 | |
| 306 | #if defined(ARGO_DEBUG)&&!defined(LOCAL_CREDIT_EXPAND) |
| 307 | #define LOCAL_CREDIT(tpcb) tp_local_credit(tpcb) |
| 308 | #else |
| 309 | #define LOCAL_CREDIT(tpcb) { if (tpcb->tp_rsycnt == 0) {\ |
| 310 | register struct sockbuf *xxsb = &((tpcb)->tp_sock->so_rcv);\ |
| 311 | register int xxi = sbspace(xxsb);\ |
| 312 | xxi = (xxi<0) ? 0 : ((xxi) / (tpcb)->tp_l_tpdusize);\ |
| 313 | xxi = min(xxi, (tpcb)->tp_maxlcredit); \ |
| 314 | if (!(tpcb->tp_cebit_off)) { \ |
| 315 | (tpcb)->tp_lcredit = ROUND((tpcb)->tp_win_recv); \ |
| 316 | if (xxi < (tpcb)->tp_lcredit) { \ |
| 317 | (tpcb)->tp_lcredit = xxi; \ |
| 318 | } \ |
| 319 | } else \ |
| 320 | (tpcb)->tp_lcredit = xxi; \ |
| 321 | } } |
| 322 | #endif ARGO_DEBUG |
| 323 | |
| 324 | #ifdef KERNEL |
| 325 | extern int tp_rttadd, tp_rttdiv; |
| 326 | #include "syslog.h" |
| 327 | #define printf logpri(LOG_DEBUG),addlog |
| 328 | |
| 329 | #ifndef tp_NSTATES |
| 330 | |
| 331 | #include "tp_states.h" |
| 332 | #include "tp_events.h" |
| 333 | #if defined(__STDC__) || defined(__cplusplus) |
| 334 | #undef ATTR |
| 335 | #define ATTR(X) ev_union.EV_ ## X |
| 336 | #endif /* defined(__STDC__) || defined(__cplusplus) */ |
| 337 | |
| 338 | #endif tp_NSTATES |
| 339 | #endif KERNEL |
| 340 | |
| 341 | #endif __TP_PARAM__ |