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1.1 root 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) 1/16/90 *
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__
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