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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*-
23: * Copyright (c) 1991, 1993
24: * The Regents of the University of California. All rights reserved.
25: *
26: * Redistribution and use in source and binary forms, with or without
27: * modification, are permitted provided that the following conditions
28: * are met:
29: * 1. Redistributions of source code must retain the above copyright
30: * notice, this list of conditions and the following disclaimer.
31: * 2. Redistributions in binary form must reproduce the above copyright
32: * notice, this list of conditions and the following disclaimer in the
33: * documentation and/or other materials provided with the distribution.
34: * 3. All advertising materials mentioning features or use of this software
35: * must display the following acknowledgement:
36: * This product includes software developed by the University of
37: * California, Berkeley and its contributors.
38: * 4. Neither the name of the University nor the names of its contributors
39: * may be used to endorse or promote products derived from this software
40: * without specific prior written permission.
41: *
42: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
43: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
46: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52: * SUCH DAMAGE.
53: *
54: * @(#)tp_param.h 8.1 (Berkeley) 6/10/93
55: */
56:
57: /***********************************************************
58: Copyright IBM Corporation 1987
59:
60: All Rights Reserved
61:
62: Permission to use, copy, modify, and distribute this software and its
63: documentation for any purpose and without fee is hereby granted,
64: provided that the above copyright notice appear in all copies and that
65: both that copyright notice and this permission notice appear in
66: supporting documentation, and that the name of IBM not be
67: used in advertising or publicity pertaining to distribution of the
68: software without specific, written prior permission.
69:
70: IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
71: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
72: IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
73: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
74: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
75: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
76: SOFTWARE.
77:
78: ******************************************************************/
79:
80: /*
81: * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
82: */
83: /*
84: * ARGO TP
85: *
86: */
87:
88: #ifndef __TP_PARAM__
89: #define __TP_PARAM__
90:
91:
92: /******************************************************
93: * compile time parameters that can be changed
94: *****************************************************/
95:
96: #define TP_CLASSES_IMPLEMENTED 0x11 /* zero and 4 */
97:
98: #define TP_DECBIT_CLEAR_COUNT 3
99:
100: /*#define N_TPREF 100 */
101: #ifdef KERNEL
102: extern int N_TPREF;
103: #endif
104:
105: #define TP_SOCKBUFSIZE ((u_long)4096)
106: #define TP0_SOCKBUFSIZE ((u_long)512)
107: #define MAX_TSAP_SEL_LEN 64
108:
109: /* maximum tpdu size we'll accept: */
110: #define TP_TPDUSIZE 0xc /* 4096 octets for classes 1-4*/
111: #define TP0_TPDUSIZE 0xb /* 2048 octets for class 0 */
112: #define TP_DFL_TPDUSIZE 0x7 /* 128 octets default */
113: /* NOTE: don't ever negotiate 8192 because could get
114: * wraparound in checksumming
115: * (No mtu is likely to be larger than 4K anyway...)
116: */
117: #define TP_NRETRANS 12 /* TCP_MAXRXTSHIFT + 1 */
118: #define TP_MAXRXTSHIFT 6 /* factor of 64 */
119: #define TP_MAXPORT 0xefff
120:
121: /* ALPHA: to be used in the context: gain= 1/(2**alpha), or
122: * put another way, gaintimes(x) (x)>>alpha (forgetting the case alpha==0)
123: */
124: #define TP_RTT_ALPHA 3
125: #define TP_RTV_ALPHA 2
126: #define TP_REXMTVAL(tpcb)\
127: ((tp_rttadd + (tpcb)->tp_rtt + ((tpcb)->tp_rtv) << 2) / tp_rttdiv)
128: #define TP_RANGESET(tv, value, min, max) \
129: ((tv = value) > (max) ? (tv = max) : (tv < min ? tv = min : tv))
130:
131: /*
132: * not sure how to treat data on disconnect
133: */
134: #define T_CONN_DATA 0x1
135: #define T_DISCONNECT 0x2
136: #define T_DISC_DATA 0x4
137: #define T_XDATA 0x8
138:
139: #define ISO_CLNS 0
140: #define IN_CLNS 1
141: #define ISO_CONS 2
142: #define ISO_COSNS 3
143: #define TP_MAX_NETSERVICES 3
144:
145: /* Indices into tp stats ackreason[i] */
146: #define _ACK_DONT_ 0
147: #define _ACK_STRAT_EACH_ 0x1
148: #define _ACK_STRAT_FULLWIN_ 0x2
149: #define _ACK_DUP_ 0x3
150: #define _ACK_EOT_ 0x4
151: #define _ACK_REORDER_ 0x5
152: #define _ACK_USRRCV_ 0x6
153: #define _ACK_FCC_ 0x7
154: #define _ACK_NUM_REASONS_ 0x8
155:
156: /* masks for use in tp_stash() */
157: #define ACK_DONT 0
158: #define ACK_STRAT_EACH (1<< _ACK_STRAT_EACH_)
159: #define ACK_STRAT_FULLWIN (1<< _ACK_STRAT_FULLWIN_)
160: #define ACK_DUP (1<< _ACK_DUP_)
161: #define ACK_EOT (1<< _ACK_EOT_)
162: #define ACK_REORDER (1<< _ACK_REORDER_)
163:
164: /******************************************************
165: * constants used in the protocol
166: *****************************************************/
167:
168: #define TP_VERSION 0x1
169:
170: #define TP_MAX_HEADER_LEN 256
171:
172: #define TP_MIN_TPDUSIZE 0x7 /* 128 octets */
173: #define TP_MAX_TPDUSIZE 0xd /* 8192 octets */
174:
175: #define TP_MAX_XPD_DATA 0x10 /* 16 octets */
176: #define TP_MAX_CC_DATA 0x20 /* 32 octets */
177: #define TP_MAX_CR_DATA TP_MAX_CC_DATA
178: #define TP_MAX_DR_DATA 0x40 /* 64 octets */
179:
180: #define TP_XTD_FMT_BIT 0x80000000
181: #define TP_XTD_FMT_MASK 0x7fffffff
182: #define TP_NML_FMT_BIT 0x80
183: #define TP_NML_FMT_MASK 0x7f
184:
185: /*
186: * values for the tpdu_type field, 2nd byte in a tpdu
187: */
188:
189: #define TP_MIN_TPDUTYPE 0x1
190:
191: #define XPD_TPDU_type 0x1
192: #define XAK_TPDU_type 0x2
193: #define GR_TPDU_type 0x3
194: #define AK_TPDU_type 0x6
195: #define ER_TPDU_type 0x7
196: #define DR_TPDU_type 0x8
197: #define DC_TPDU_type 0xc
198: #define CC_TPDU_type 0xd
199: #define CR_TPDU_type 0xe
200: #define DT_TPDU_type 0xf
201:
202: #define TP_MAX_TPDUTYPE 0xf
203:
204: /*
205: * identifiers for the variable-length options in tpdus
206: */
207:
208: #define TPP_acktime 0x85
209: #define TPP_residER 0x86
210: #define TPP_priority 0x87
211: #define TPP_transdelay 0x88
212: #define TPP_throughput 0x89
213: #define TPP_subseq 0x8a
214: #define TPP_flow_cntl_conf 0x8c /* not implemented */
215: #define TPP_addl_info 0xe0
216: #define TPP_tpdu_size 0xc0
217: #define TPP_calling_sufx 0xc1
218: #define TPP_invalid_tpdu 0xc1 /* the bozos used a value twice */
219: #define TPP_called_sufx 0xc2
220: #define TPP_checksum 0xc3
221: #define TPP_vers 0xc4
222: #define TPP_security 0xc5
223: #define TPP_addl_opt 0xc6
224: #define TPP_alt_class 0xc7
225: #define TPP_perf_meas 0xc8 /* local item : perf meas on, svp */
226: #define TPP_ptpdu_size 0xf0 /* preferred TPDU size */
227: #define TPP_inact_time 0xf2 /* inactivity time exchanged */
228:
229:
230: /******************************************************
231: * Some fundamental data types
232: *****************************************************/
233: #ifndef TRUE
234: #define TRUE 1
235: #endif /* TRUE */
236:
237: #ifndef FALSE
238: #define FALSE 0
239: #endif /* FALSE */
240:
241: #define TP_LOCAL 22
242: #define TP_FOREIGN 33
243:
244: #ifndef EOK
245: #define EOK 0
246: #endif /* EOK */
247:
248: #define TP_CLASS_0 (1<<0)
249: #define TP_CLASS_1 (1<<1)
250: #define TP_CLASS_2 (1<<2)
251: #define TP_CLASS_3 (1<<3)
252: #define TP_CLASS_4 (1<<4)
253:
254: #define TP_FORCE 0x1
255: #define TP_STRICT 0x2
256:
257: #ifndef MNULL
258: #define MNULL (struct mbuf *)0
259: #endif /* MNULL */
260: /* if ../sys/mbuf.h gets MT_types up to 0x40, these will
261: * have to be changed:
262: */
263: #define MT_XPD 0x44
264: #define MT_EOT 0x40
265:
266: #define TP_ENOREF 0x80000000
267:
268: typedef unsigned int SeqNum;
269: typedef unsigned short RefNum;
270: typedef int ProtoHook;
271:
272: /******************************************************
273: * Macro used all over, for driver
274: *****************************************************/
275:
276: #define DoEvent(x) \
277: ((E.ev_number=(x)),(tp_driver(tpcb,&E)))
278:
279: /******************************************************
280: * Some macros used all over, for timestamping
281: *****************************************************/
282:
283: #define GET_CUR_TIME(tvalp) ((*tvalp) = time)
284:
285: #define GET_TIME_SINCE(oldtvalp, diffp) {\
286: (diffp)->tv_sec = time.tv_sec - (oldtvalp)->tv_sec;\
287: (diffp)->tv_usec = time.tv_usec - (oldtvalp)->tv_usec;\
288: if( (diffp)->tv_usec <0 ) {\
289: (diffp)->tv_sec --;\
290: (diffp)->tv_usec = 1000000 - (diffp)->tv_usec;\
291: }\
292: }
293:
294: /******************************************************
295: * Some macros used for address families
296: *****************************************************/
297:
298: #define satosiso(ADDR) ((struct sockaddr_iso *)(ADDR))
299: #define satosin(ADDR) ((struct sockaddr_in *)(ADDR))
300:
301: /******************************************************
302: * Macro used for changing types of mbufs
303: *****************************************************/
304:
305: #define CHANGE_MTYPE(m, TYPE)\
306: if((m)->m_type != TYPE) { \
307: mbstat.m_mtypes[(m)->m_type]--; mbstat.m_mtypes[TYPE]++; \
308: (m)->m_type = TYPE; \
309: }
310:
311: /******************************************************
312: * Macros used for adding options to a tpdu header and for
313: * parsing the headers.
314: * Options are variable-length and must be bcopy-d because on the
315: * RT your assignments must be N-word aligned for objects of length
316: * N. Such a drag.
317: *****************************************************/
318:
319: struct tp_vbp {
320: u_char tpv_code;
321: char tpv_len;
322: char tpv_val;
323: };
324: #define vbptr(x) ((struct tp_vbp *)(x))
325: #define vbval(x,type) (*((type *)&(((struct tp_vbp *)(x))->tpv_val)))
326: #define vbcode(x) (vbptr(x)->tpv_code)
327: #define vblen(x) (vbptr(x)->tpv_len)
328:
329: #define vb_putval(dst,type,src)\
330: bcopy((caddr_t)&(src),(caddr_t)&(((struct tp_vbp *)(dst))->tpv_val),\
331: sizeof(type))
332:
333: #define vb_getval(src,type,dst)\
334: bcopy((caddr_t)&(((struct tp_vbp *)(src))->tpv_val),(caddr_t)&(dst),sizeof(type))
335:
336: #define ADDOPTION(type, DU, len, src)\
337: { register caddr_t P;\
338: P = (caddr_t)(DU) + (int)((DU)->tpdu_li);\
339: vbptr(P)->tpv_code = type;\
340: vbptr(P)->tpv_len = len;\
341: bcopy((caddr_t)&src, (caddr_t)&(vbptr(P)->tpv_val), (unsigned)len);\
342: DU->tpdu_li += len+2;/* 1 for code, 1 for length */\
343: }
344: /******************************************************
345: * Macro for the local credit:
346: * uses max transmission unit for the ll
347: * (as modified by the max TPDU size negotiated)
348: *****************************************************/
349:
350: #if defined(ARGO_DEBUG)&&!defined(LOCAL_CREDIT_EXPAND)
351: #define LOCAL_CREDIT(tpcb) tp_local_credit(tpcb)
352: #else
353: #define LOCAL_CREDIT(tpcb) { if (tpcb->tp_rsycnt == 0) {\
354: register struct sockbuf *xxsb = &((tpcb)->tp_sock->so_rcv);\
355: register int xxi = sbspace(xxsb);\
356: xxi = (xxi<0) ? 0 : ((xxi) / (tpcb)->tp_l_tpdusize);\
357: xxi = min(xxi, (tpcb)->tp_maxlcredit); \
358: if (!(tpcb->tp_cebit_off)) { \
359: (tpcb)->tp_lcredit = ROUND((tpcb)->tp_win_recv); \
360: if (xxi < (tpcb)->tp_lcredit) { \
361: (tpcb)->tp_lcredit = xxi; \
362: } \
363: } else \
364: (tpcb)->tp_lcredit = xxi; \
365: } }
366: #endif /* ARGO_DEBUG */
367:
368: #ifdef KERNEL
369: extern int tp_rttadd, tp_rttdiv;
370: #include <sys/syslog.h>
371: #define printf logpri(LOG_DEBUG),addlog
372:
373: #ifndef tp_NSTATES
374:
375: #include <netiso/tp_states.h>
376: #include <netiso/tp_events.h>
377: #if defined(__STDC__) || defined(__cplusplus)
378: #undef ATTR
379: #define ATTR(X) ev_union.EV_ ## X
380: #endif /* defined(__STDC__) || defined(__cplusplus) */
381:
382: #endif /* tp_NSTATES */
383: #endif /* KERNEL */
384:
385: #endif /* __TP_PARAM__ */
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