0,0 → 1,85 |
/*!\file net/if_slvar.h |
* SLIP interface structures. |
*/ |
|
/* $NetBSD: if_slvar.h,v 1.17 1997/03/27 20:36:17 thorpej Exp $ */ |
|
/*- |
* Copyright (c) 1991, 1993 |
* The Regents of the University of California. All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* 1. Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
* must display the following acknowledgement: |
* This product includes software developed by the University of |
* California, Berkeley and its contributors. |
* 4. Neither the name of the University nor the names of its contributors |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
* |
* @(#)if_slvar.h 8.3 (Berkeley) 2/1/94 |
*/ |
#ifndef __NET_IF_SLVAR_H |
#define __NET_IF_SLVAR_H |
|
/* |
* Definitions for SLIP interface data structures |
* |
* (This exists so programs like slstats can get at the definition |
* of sl_softc.) |
*/ |
|
struct sl_softc { |
struct ifnet sc_if; /* network-visible interface */ |
int sc_unit; /* XXX unit number */ |
struct ifqueue sc_fastq; /* interactive output queue */ |
struct tty *sc_ttyp; /* pointer to tty structure */ |
u_char *sc_mp; /* pointer to next available buf char */ |
u_char *sc_ep; /* pointer to last available buf char */ |
u_char *sc_buf; /* input buffer */ |
u_char *sc_xxx; /* XXX don't ask... */ |
u_int sc_flags; /* see below */ |
u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */ |
long sc_lasttime; /* last time a char arrived */ |
long sc_abortcount; /* number of abort esacpe chars */ |
long sc_starttime; /* time of first abort in window */ |
long sc_oqlen; /* previous output queue size */ |
long sc_otimeout; /* number of times output's stalled */ |
#ifdef NetBSD |
int sc_oldbufsize; /* previous output buffer size */ |
int sc_oldbufquot; /* previous output buffer quoting */ |
#endif |
#ifdef INET /* XXX */ |
struct slcompress sc_comp; /* tcp compression data */ |
#endif |
caddr_t sc_bpf; /* BPF data */ |
}; |
|
/* internal flags */ |
#define SC_ERROR 0x0001 /* had an input error */ |
|
/* visible flags */ |
#define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */ |
#define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */ |
#define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */ |
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#endif |