workbench/network/common/include/net/if_slvar.h

   1 #ifndef _NET_IF_SLVAR_H_
   2 #define _NET_IF_SLVAR_H_
   3 /*-
   4  * Copyright (c) 1991, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      @(#)if_slvar.h  8.4 (Berkeley) 1/9/95
  36  *
  37  * $Header: /cvsroot/unmorphos/ezTCP/include/net/if_slvar.h,v 1.3 2006/12/15 08:45:24 sonic_amiga Exp $
  38  */
  39
  40 /*
  41  * Definitions for SLIP interface data structures
  42  *
  43  * (This exists so programs like slstats can get at the definition
  44  *  of sl_softc.)
  45  */
  46 struct sl_softc {
  47         struct  ifnet sc_if;            /* network-visible interface */
  48         struct  ifqueue sc_fastq;       /* interactive output queue */
  49         struct  tty *sc_ttyp;           /* pointer to tty structure */
  50         u_char  *sc_mp;                 /* pointer to next available buf char */
  51         u_char  *sc_ep;                 /* pointer to last available buf char */
  52         u_char  *sc_buf;                /* input buffer */
  53         u_int   sc_flags;               /* see below */
  54         u_int   sc_escape;      /* =1 if last char input was FRAME_ESCAPE */
  55         long    sc_lasttime;            /* last time a char arrived */
  56         long    sc_abortcount;          /* number of abort esacpe chars */
  57         long    sc_starttime;           /* time of first abort in window */
  58 #ifdef INET                             /* XXX */
  59         struct  slcompress sc_comp;     /* tcp compression data */
  60 #endif
  61         caddr_t sc_bpf;                 /* BPF data */
  62 };
  63
  64 /* internal flags */
  65 #define SC_ERROR        0x0001          /* had an input error */
  66
  67 /* visible flags */
  68 #define SC_COMPRESS     IFF_LINK0       /* compress TCP traffic */
  69 #define SC_NOICMP       IFF_LINK1       /* supress ICMP traffic */
  70 #define SC_AUTOCOMP     IFF_LINK2       /* auto-enable TCP compression */
  71
  72 #endif /* !_NET_IF_SLVAR_H_ */