bsd/netccitt/dll.h

   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) Dirk Husemann, Computer Science Department IV,
  24  *               University of Erlangen-Nuremberg, Germany, 1990, 1991, 1992
  25  * Copyright (c) 1992, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      @(#)dll.h       8.1 (Berkeley) 6/10/93
  57  */
  58
  59 /*
  60  * We define the additional PRC_* codes in here
  61  */
  62 #ifdef KERNEL
  63 #ifndef PRC_IFUP
  64 #define PRC_IFUP                   3
  65 #endif
  66 #define PRC_CONNECT_INDICATION     8
  67 #define PRC_CONNECT_REQUEST        9
  68 #define PRC_DISCONNECT_REQUEST     10
  69 #define PRC_DISCONNECT_INDICATION  11
  70 #define PRC_RESET_REQUEST          12
  71 #endif
  72
  73 /*
  74  * Data link layer configuration --- basically a copy of the relevant parts
  75  * of x25config, implemented to become a little bit more network
  76  * layer independent. (Probably only used for casting et al.)
  77  */
  78 struct dllconfig {
  79        u_short dllcfg_unused0:4,
  80                dllcfg_unused1:4,
  81                dllcfg_trace:1,     /* link level tracing flag */
  82                dllcfg_window:7;    /* link level window size */
  83        u_short dllcfg_xchxid:1,    /* exchange XID (not yet) */
  84                dllcfg_unused2:7;   /* here be dragons */
  85 };
  86
  87 struct dll_ctlinfo {
  88         union {
  89                 struct {
  90                         struct  dllconfig *dctli_up_cfg;
  91                         u_char  dctli_up_lsap;
  92                 } CTLI_UP;
  93                 struct {
  94                         caddr_t dctli_down_pcb;
  95                         struct rtentry *dctli_down_rt;
  96                         struct dllconfig *dctli_down_llconf;
  97                 } CTLI_DOWN;
  98         } CTLIun;
  99 };
 100 #define dlcti_cfg  CTLIun.CTLI_UP.dctli_up_cfg
 101 #define dlcti_lsap CTLIun.CTLI_UP.dctli_up_lsap
 102 #define dlcti_pcb  CTLIun.CTLI_DOWN.dctli_down_pcb
 103 #define dlcti_rt   CTLIun.CTLI_DOWN.dctli_down_rt
 104 #define dlcti_conf CTLIun.CTLI_DOWN.dctli_down_llconf