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 * @(#)tp_param.h 7.5 (Berkeley) 01/16/90 * 33 * 34 */ 35 36 #ifndef __TP_PARAM__ 37 #define __TP_PARAM__ 38 39 40 /****************************************************** 41 * compile time parameters that can be changed 42 *****************************************************/ 43 44 #define TP_CLASSES_IMPLEMENTED 0x11 /* zero and 4 */ 45 46 #define TP_DECBIT_CLEAR_COUNT 3 47 48 #define N_TPREF 100 49 50 #define TP_SOCKBUFSIZE ((u_long)4096) 51 #define TP0_SOCKBUFSIZE ((u_long)512) 52 #define MAX_TSAP_SEL_LEN 64 53 54 /* maximum tpdu size we'll accept: */ 55 #define TP_TPDUSIZE 0xc /* 4096 octets for classes 1-4*/ 56 #define TP0_TPDUSIZE 0xb /* 2048 octets for class 0 */ 57 #define TP_DFL_TPDUSIZE 0x7 /* 128 octets default */ 58 /* NOTE: don't ever negotiate 8192 because could get 59 * wraparound in checksumming 60 * (No mtu is likely to be larger than 4K anyway...) 61 */ 62 #define TP_NRETRANS 1 63 #define TP_MAXPORT 0xefff 64 65 #define TP_RTT_NUM 0x7 66 /* ALPHA: to be used in the context: gain= 1/(2**alpha), or 67 * put another way, gaintimes(x) (x)>>alpha (forgetting the case alpha==0) 68 */ 69 #define TP_RTT_ALPHA 3 70 #define TP_RTV_ALPHA 2 71 72 /* 73 * not sure how to treat data on disconnect 74 */ 75 #define T_CONN_DATA 0x1 76 #define T_DISCONNECT 0x2 77 #define T_DISC_DATA 0x4 78 #define T_XDATA 0x8 79 80 #define ISO_CLNS 0 81 #define IN_CLNS 1 82 #define ISO_CONS 2 83 #define ISO_COSNS 3 84 #define TP_MAX_NETSERVICES 3 85 86 /* Indices into tp stats ackreason[i] */ 87 #define _ACK_DONT_ 0 88 #define _ACK_STRAT_EACH_ 0x1 89 #define _ACK_STRAT_FULLWIN_ 0x2 90 #define _ACK_DUP_ 0x3 91 #define _ACK_EOT_ 0x4 92 #define _ACK_REORDER_ 0x5 93 #define _ACK_USRRCV_ 0x6 94 #define _ACK_FCC_ 0x7 95 #define _ACK_NUM_REASONS_ 0x8 96 97 /* masks for use in tp_stash() */ 98 #define ACK_DONT 0 99 #define ACK_STRAT_EACH (1<< _ACK_STRAT_EACH_) 100 #define ACK_STRAT_FULLWIN (1<< _ACK_STRAT_FULLWIN_) 101 #define ACK_DUP (1<< _ACK_DUP_) 102 #define ACK_EOT (1<< _ACK_EOT_) 103 #define ACK_REORDER (1<< _ACK_REORDER_) 104 105 /****************************************************** 106 * constants used in the protocol 107 *****************************************************/ 108 109 #define TP_VERSION 0x1 110 111 #define TP_MAX_HEADER_LEN 256 112 113 #define TP_MIN_TPDUSIZE 0x7 /* 128 octets */ 114 #define TP_MAX_TPDUSIZE 0xd /* 8192 octets */ 115 116 #define TP_MAX_XPD_DATA 0x10 /* 16 octets */ 117 #define TP_MAX_CC_DATA 0x20 /* 32 octets */ 118 #define TP_MAX_CR_DATA TP_MAX_CC_DATA 119 #define TP_MAX_DR_DATA 0x40 /* 64 octets */ 120 121 #define TP_XTD_FMT_BIT 0x80000000 122 #define TP_XTD_FMT_MASK 0x7fffffff 123 #define TP_NML_FMT_BIT 0x80 124 #define TP_NML_FMT_MASK 0x7f 125 126 /* 127 * values for the tpdu_type field, 2nd byte in a tpdu 128 */ 129 130 #define TP_MIN_TPDUTYPE 0x1 131 132 #define XPD_TPDU_type 0x1 133 #define XAK_TPDU_type 0x2 134 #define GR_TPDU_type 0x3 135 #define AK_TPDU_type 0x6 136 #define ER_TPDU_type 0x7 137 #define DR_TPDU_type 0x8 138 #define DC_TPDU_type 0xc 139 #define CC_TPDU_type 0xd 140 #define CR_TPDU_type 0xe 141 #define DT_TPDU_type 0xf 142 143 #define TP_MAX_TPDUTYPE 0xf 144 145 /* 146 * identifiers for the variable-length options in tpdus 147 */ 148 149 #define TPP_acktime 0x85 150 #define TPP_residER 0x86 151 #define TPP_priority 0x87 152 #define TPP_transdelay 0x88 153 #define TPP_throughput 0x89 154 #define TPP_subseq 0x8a 155 #define TPP_flow_cntl_conf 0x8c /* not implemented */ 156 #define TPP_addl_info 0xe0 157 #define TPP_tpdu_size 0xc0 158 #define TPP_calling_sufx 0xc1 159 #define TPP_invalid_tpdu 0xc1 /* the bozos used a value twice */ 160 #define TPP_called_sufx 0xc2 161 #define TPP_checksum 0xc3 162 #define TPP_vers 0xc4 163 #define TPP_security 0xc5 164 #define TPP_addl_opt 0xc6 165 #define TPP_alt_class 0xc7 166 #define TPP_perf_meas 0xc8 /* local item : perf meas on, svp */ 167 168 /****************************************************** 169 * Some fundamental data types 170 *****************************************************/ 171 #ifndef TRUE 172 #define TRUE 1 173 #endif TRUE 174 175 #ifndef FALSE 176 #define FALSE 0 177 #endif FALSE 178 179 #define TP_LOCAL 22 180 #define TP_FOREIGN 33 181 182 #ifndef EOK 183 #define EOK 0 184 #endif EOK 185 186 #define TP_CLASS_0 (1<<0) 187 #define TP_CLASS_1 (1<<1) 188 #define TP_CLASS_2 (1<<2) 189 #define TP_CLASS_3 (1<<3) 190 #define TP_CLASS_4 (1<<4) 191 192 #define TP_FORCE 0x1 193 #define TP_STRICT 0x2 194 195 #ifndef MNULL 196 #define MNULL (struct mbuf *)0 197 #endif MNULL 198 /* if ../sys/mbuf.h gets MT_types up to 0x40, these will 199 * have to be changed: 200 */ 201 #define MT_XPD 0x44 202 #define MT_EOT 0x40 203 204 #define TP_ENOREF 0x80000000 205 206 typedef unsigned int SeqNum; 207 typedef unsigned short RefNum; 208 typedef int ProtoHook; 209 210 211 /****************************************************** 212 * Some fundamental constants 213 *****************************************************/ 214 215 #define TP_MIN_WIN 2048 216 #define TP_MAX_WIN 16384 217 #define TP_MAX_WIN_UNPRIV 8192 218 219 /****************************************************** 220 * Macro used all over, for driver 221 *****************************************************/ 222 223 #define DoEvent(x) \ 224 ((E.ev_number=(x)),(tp_driver(tpcb,&E))) 225 226 /****************************************************** 227 * Some macros used all over, for timestamping 228 *****************************************************/ 229 230 #define GET_CUR_TIME(tvalp) ((*tvalp) = time) 231 232 #define GET_TIME_SINCE(oldtvalp, diffp) {\ 233 (diffp)->tv_sec = time.tv_sec - (oldtvalp)->tv_sec;\ 234 (diffp)->tv_usec = time.tv_usec - (oldtvalp)->tv_usec;\ 235 if( (diffp)->tv_usec <0 ) {\ 236 (diffp)->tv_sec --;\ 237 (diffp)->tv_usec = 1000000 - (diffp)->tv_usec;\ 238 }\ 239 } 240 241 /****************************************************** 242 * Some macros used for address families 243 *****************************************************/ 244 245 #define satosiso(ADDR) ((struct sockaddr_iso *)(ADDR)) 246 #define satosin(ADDR) ((struct sockaddr_in *)(ADDR)) 247 248 /****************************************************** 249 * Macro used for changing types of mbufs 250 *****************************************************/ 251 252 #define CHANGE_MTYPE(m, TYPE)\ 253 if((m)->m_type != TYPE) { \ 254 mbstat.m_mtypes[(m)->m_type]--; mbstat.m_mtypes[TYPE]++; \ 255 (m)->m_type = TYPE; \ 256 } 257 258 /****************************************************** 259 * Macros used for adding options to a tpdu header and for 260 * parsing the headers. 261 * Options are variable-length and must be bcopy-d because on the 262 * RT your assignments must be N-word aligned for objects of length 263 * N. Such a drag. 264 *****************************************************/ 265 266 struct tp_vbp { 267 u_char tpv_code; 268 char tpv_len; 269 char tpv_val; 270 }; 271 #define vbptr(x) ((struct tp_vbp *)(x)) 272 #define vbval(x,type) (*((type *)&(((struct tp_vbp *)(x))->tpv_val))) 273 #define vbcode(x) (vbptr(x)->tpv_code) 274 #define vblen(x) (vbptr(x)->tpv_len) 275 276 #define vb_putval(dst,type,src)\ 277 bcopy((caddr_t)&(src),(caddr_t)&(((struct tp_vbp *)(dst))->tpv_val),\ 278 sizeof(type)) 279 280 #define vb_getval(src,type,dst)\ 281 bcopy((caddr_t)&(((struct tp_vbp *)(src))->tpv_val),(caddr_t)&(dst),sizeof(type)) 282 283 #define ADDOPTION(type, DU, len, src)\ 284 { register caddr_t P;\ 285 P = (caddr_t)(DU) + (int)((DU)->tpdu_li);\ 286 vbptr(P)->tpv_code = type;\ 287 vbptr(P)->tpv_len = len;\ 288 bcopy((caddr_t)&src, (caddr_t)&(vbptr(P)->tpv_val), (unsigned)len);\ 289 DU->tpdu_li += len+2;/* 1 for code, 1 for length */\ 290 } 291 /****************************************************** 292 * Macro for the local credit: 293 * uses max transmission unit for the ll 294 * (as modified by the max TPDU size negotiated) 295 *****************************************************/ 296 297 #if defined(ARGO_DEBUG)&&!defined(LOCAL_CREDIT_EXPAND) 298 #define LOCAL_CREDIT(tpcb) tp_local_credit(tpcb) 299 #else 300 #define LOCAL_CREDIT( tpcb ) {\ 301 register struct sockbuf *xxsb = &((tpcb)->tp_sock->so_rcv);\ 302 register int xxi = ((xxsb)->sb_hiwat-(xxsb)->sb_cc);\ 303 register int maxcredit = ((tpcb)->tp_xtd_format?0xffff:0xf);\ 304 xxi = (xxi<0) ? 0 : ((xxi)>>(tpcb)->tp_tpdusize);\ 305 xxi = MIN(xxi, maxcredit); \ 306 if (!(tpcb->tp_cebit_off)) { \ 307 (tpcb)->tp_lcredit = ROUND((tpcb)->tp_win_recv); \ 308 if (xxi < (tpcb)->tp_lcredit) { \ 309 (tpcb)->tp_lcredit = xxi; \ 310 } \ 311 } \ 312 else { \ 313 (tpcb)->tp_lcredit = xxi; \ 314 } \ 315 } 316 #endif ARGO_DEBUG 317 318 #ifdef KERNEL 319 320 #ifndef tp_NSTATES 321 322 #include "tp_states.h" 323 #include "tp_events.h" 324 325 #endif tp_NSTATES 326 #endif KERNEL 327 328 #endif __TP_PARAM__ 329