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Annotation of 43BSDReno/sys/netiso/tp_param.h, revision 1.1

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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