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if_slvar.h
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C/C++ Source or Header
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1996-09-28
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3KB
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74 lines
/*-
* Copyright (c) 1991 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 7.7 (Berkeley) 5/7/91
*
* soft:cvs/ixemul/include/net/if_slvar.h,v 1.1.1.1 1994/04/04 04:33:10 amiga Exp
*/
/*
* 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 */
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_int sc_flags; /* see below */
u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */
u_int sc_bytessent;
u_int sc_bytesrcvd;
long sc_lasttime; /* last time a char arrived */
long sc_starttime; /* last time a char arrived */
long sc_abortcount; /* number of abort esacpe chars */
#ifdef INET /* XXX */
struct slcompress sc_comp; /* tcp compression data */
#endif
};
/* visible flags */
#define SC_COMPRESS 0x0002 /* compress TCP traffic */
#define SC_NOICMP 0x0004 /* supress ICMP traffic */
#define SC_AUTOCOMP 0x0008 /* auto-enable TCP compression */
/* internal flags (should be separate) */
#define SC_ABORT 0x10000 /* have been sent an abort request */
/* this stuff doesn't belong here... */
#define SLIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
#define SLIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */
#define SLIOCGUNIT _IOR('t', 88, int) /* get slip unit number */