usr/src/cmd/bnu/pk.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1992 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"
  32
  33 #define OLDPACKSIZE     128
  34
  35 #define PACKSIZE        64
  36 #define MINPACKSIZE     32
  37 #define MAXPACKSIZE   4096
  38
  39 #define WINDOWS         7
  40 #define MINWINDOWS      1
  41 #define MAXWINDOWS      7
  42
  43
  44 struct header {
  45         char    sync;
  46         char    ksize;
  47         unsigned short sum;
  48         char    cntl;
  49         char    ccntl;
  50 };
  51 #define HDRSIZ  6
  52
  53 struct pack {
  54         short   p_state;        /* line state */
  55         short   p_bits;         /* mask for getepack */
  56         short   p_rsize;        /* input packet size */
  57         short   p_xsize;        /* output packet size */
  58         struct  header p_ihbuf; /* input header */
  59         struct  header p_ohbuf; /* output header */
  60         char    *p_rptr;
  61         char    **p_ipool;
  62         char    p_xcount;       /* # active output buffers */
  63         char    p_rcount;
  64         char    p_nout,p_tout;
  65         char    p_lpsize;       /* log(psize/32) */
  66         char    p_timer;
  67         char    p_obusy;
  68         char    p_srxmit;
  69         char    p_rwindow;      /* window size */
  70         char    p_swindow;
  71         char    p_msg;          /* control msg */
  72         char    p_rmsg;         /* repeated control msg */
  73         char    p_ps,p_pr;      /* last packet sent, recv'd */
  74         char    p_rpr;
  75         char    p_nxtps;        /* next output seq number */
  76         char    p_imap;         /* bit map of input buffers */
  77         char    p_pscopy;       /* newest output packet */
  78         char    *p_ob[8];       /* output buffers */
  79         char    *p_ib[8];       /* input buffers */
  80         char    p_os[8];        /* output buffer status */
  81         char    p_is[8];        /* input buffer status */
  82         short   p_osum[8];      /* output checksums */
  83         short   p_isum[8];      /* input checksums */
  84         int     p_ifn, p_ofn;
  85 };
  86 #define CHECK   0125252
  87 #define SYN     020
  88 #define MOD8    7
  89 #define ISCNTL(a)       ((a & 0300)==0)
  90 #ifndef MIN
  91 #define MIN(a,b)        ((a<b)? a:b)
  92 #endif
  93
  94 extern char     next[8];
  95 extern char     mask[8];
  96 extern int      npbits;
  97 extern int      pkactive;
  98 extern int      pkdebug;
  99 extern int      pksizes[];
 100 extern struct pack *Pk;
 101
 102 /*
 103  * driver state
 104  */
 105 #define DEAD    0
 106 #define INITa   1
 107 #define INITb   2
 108 #define INITab  3
 109 #define LIVE    010
 110 #define RXMIT   020
 111 #define RREJ    040
 112 #define PDEBUG  0200
 113 #define DRAINO  0400
 114 #define WAITO   01000
 115 #define DOWN    02000
 116 #define RCLOSE  04000
 117 #define BADFRAME 020000
 118
 119 /*
 120  * io buffer states
 121  */
 122 #define B_NULL  0
 123 #define B_READY 1
 124 #define B_SENT  2
 125 #define B_RESID 010
 126 #define B_COPY  020
 127 #define B_MARK  040
 128 #define B_SHORT 0100
 129
 130 /*
 131  * control messages
 132  */
 133 #define CLOSE   1
 134 #define RJ      2
 135 /* #define      SRJ     3 */    /* not supported */
 136 #define RR      4
 137 #define INITC   5
 138 #define INITB   6
 139 #define INITA   7
 140
 141 #define M_RJ    4
 142 /* #define      M_SRJ   010 */  /* not used */
 143 #define M_RR    020
 144 #define M_INITC 040
 145 #define M_CLOSE 2
 146 #define M_INITA 0200
 147 #define M_INITB 0100
 148
 149 /*
 150  * packet ioctl buf
 151  */
 152 struct  piocb {
 153         unsigned t;
 154         short   psize;
 155         short   mode;
 156         short   state;
 157         char    window;
 158 };