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 49 #define TP_SOCKBUFSIZE ((u_long)4096) 50 #define TP0_SOCKBUFSIZE ((u_long)512) 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 ../sys/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;\ 287 bcopy((caddr_t)&src, (caddr_t)&(vbptr(P)->tpv_val), (unsigned)len);\ 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__ 320